技术领域Technical field
本发明涉及用于运输和存储低温液体的设备技术领域，特别是一种承载低温液化气体的薄膜型围护系统。The present invention relates to the technical field of equipment for transporting and storing cryogenic liquids, in particular to a membrane-type containment system carrying cryogenic liquefied gases.
背景技术Background technique
在运输天然气、乙烷气等气体时，为了更为经济的长距离运输，通常采用将气体冷却到低温，运输液化后的气体。液化后气体体积大为缩小，运输成本降低。液化后的低温液体采用专门的低温液货储罐进行存储和运输。When transporting natural gas, ethane gas and other gases, for more economical long-distance transportation, the gas is usually cooled to low temperatures and the liquefied gas is transported. After liquefaction, the gas volume is greatly reduced and transportation costs are reduced. The liquefied cryogenic liquid is stored and transported in special cryogenic liquid cargo storage tanks.
在当前的造船产业中，低温液货围护系统主要涉及LNG船舶的制造方面。对于LNG船舶，《国际散装运输液化气体船舶构造和设备规则》(IGC规则)定义了4大类围护系统，分别为A型、B型、C型和薄膜型围护系统，其中，薄膜型围护系统由于舱容利用率高、保温性能好、受风阻力面积小等优点而被广泛应用。In the current shipbuilding industry, cryogenic liquid cargo containment systems mainly involve the manufacturing of LNG ships. For LNG ships, the International Code for the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk (IGC Code) defines four major categories of containment systems, namely Type A, Type B, Type C and membrane-type containment systems. Among them, membrane-type The enclosure system is widely used due to its advantages such as high cabin capacity utilization, good thermal insulation performance, and small wind resistance area.
现有薄膜型围护系统技术主要有Mark III型和NO 96型，两者均来自于法国的GTT公司。然而这两种围护系统均存在各自的不足，对于NO 96型，由于其主、次层绝缘模块呈上下重叠布置，导致主层绝缘模块之间的缝隙和次层绝缘模块之间的缝隙直接联通到船体结构处，虽然，在缝隙处均布有玻璃棉等保温材料，但在缝隙处仍存在较大的漏热；对于MarkIII型，由于主层绝缘模块、次层绝缘模块和次层薄膜之间均通过胶水相互固定粘连成一整体，并通过环氧树脂将固定在船体结构上，导致主、次层绝缘模块之间的相对运动受限，整体抗船体运动及液货晃荡能力差；此外由于大量使用胶水，导致施工周期较长，由于对施工环境(湿度和温度)以及工序要求比较严格，拖延了整船的交期。The existing membrane-type enclosure system technologies mainly include Mark III type and NO 96 type, both of which come from the French GTT company. However, both containment systems have their own shortcomings. For the NO 96 type, due to the overlapping arrangement of the main and secondary insulation modules, the gaps between the main insulation modules and the gaps between the secondary insulation modules are directly Connected to the hull structure, although glass wool and other insulation materials are evenly distributed in the gaps, there is still a large heat leakage in the gaps; for the Mark III type, due to the main layer insulation module, the secondary insulation module and the secondary film They are all fixed to each other through glue to form a whole, and are fixed to the hull structure through epoxy resin, resulting in limited relative movement between the main and secondary insulation modules, and poor overall resistance to hull movement and liquid cargo sloshing; in addition Due to the large amount of glue used, the construction period was long. Due to the strict requirements on the construction environment (humidity and temperature) and process, the delivery of the entire ship was delayed.
发明内容Contents of the invention
有鉴于现有技术中存在的上述问题，本发明实施例提供一种承载低温液化气体的薄膜型围护系统，所述薄膜型围护系统用以容纳超低温介质，包括通过贯穿紧固件依次连接并固定到船体结构(船体钢板)上的主层薄膜层、紧固卡板、主层绝缘层、次层薄膜层和次层绝缘层，也就是，其在主层薄膜层和次层薄膜层之间设置了主层绝缘层和紧固卡板，在次层薄膜层和船体结构之间设置有次层绝缘层，主层薄膜层、紧固卡板、主层绝缘层、次层薄膜层和次层绝缘层均通过贯穿紧固件连接固定到船体结构上，同时，主层薄膜层与次层薄膜层之间的空间形成主层屏蔽空间、次层绝缘层与船体结构之间的空间形成次层屏蔽空间，有效地搭建了双层密封的超低温介质存储载体，解决了超低温介质的存储和防泄漏问题。In view of the above-mentioned problems existing in the prior art, embodiments of the present invention provide a membrane-type enclosure system for carrying low-temperature liquefied gas. The membrane-type enclosure system is used to accommodate ultra-low-temperature media, including sequential connections through penetrating fasteners. And fixed to the main film layer, fastening card plate, main insulation layer, secondary film layer and secondary insulation layer on the hull structure (hull steel plate), that is, it is between the main film layer and the secondary film layer The main layer insulation layer and the fastening card plate are arranged between them. The secondary layer insulation layer is arranged between the secondary film layer and the hull structure. The main layer film layer, the fastening card plate, the main layer insulation layer and the secondary film layer and the secondary insulation layer are connected and fixed to the hull structure through through fasteners. At the same time, the space between the primary film layer and the secondary film layer forms the primary shielding space, the space between the secondary insulation layer and the hull structure. A secondary shielding space is formed, effectively building a double-sealed ultra-low temperature medium storage carrier, which solves the storage and leakage prevention problems of ultra-low temperature media.
本发明实施例提供一种承载低温液化气体的薄膜型围护系统，所述薄膜型围护系统用以容纳超低温介质，包括通过贯穿紧固件依次连接并固定到船体结构上的主层薄膜层、紧固卡板、主层绝缘层、次层薄膜层和次层绝缘层，所述主层薄膜层、所述主层绝缘层、所述次层薄膜层和所述次层绝缘层围合形成一用以容纳超低温介质的低温液货储罐，在所述薄膜型围护系统中，Embodiments of the present invention provide a membrane-type containment system that carries low-temperature liquefied gas. The membrane-type containment system is used to accommodate ultra-low temperature media and includes a main layer of membrane layers that are sequentially connected and fixed to the ship hull structure through penetrating fasteners. , fastening the card plate, the main layer insulating layer, the sub-layer film layer and the sub-layer insulating layer, the main layer film layer, the main layer insulating layer, the sub-layer film layer and the sub-layer insulating layer are enclosed A low-temperature liquid cargo storage tank is formed to accommodate ultra-low temperature media. In the film-type containment system,
所述主层薄膜层与超低温介质接触；The main film layer is in contact with the ultra-low temperature medium;
所述主层绝缘层包括有多个间隔且呈矩阵式分布设置的主绝缘模块，相邻的两个主绝缘模块之间的第一空隙中填充有柔性保温材料；The main insulation layer includes a plurality of main insulation modules spaced apart and arranged in a matrix, and the first gap between two adjacent main insulation modules is filled with a flexible thermal insulation material;
所述紧固卡板设置在主层薄膜层和主层绝缘层之间，所述紧固卡板包括至少一个位于所述第一空隙上部且搭设在第一空隙两侧的主绝缘模块上的条状卡板；The fastening card plate is arranged between the main layer film layer and the main layer insulation layer. The fastening card plate includes at least one main insulation module located above the first gap and erected on both sides of the first gap. strip cardboard;
所述次层薄膜层位于主层绝缘层和次层绝缘层交界面处，所述次层薄膜层中的次层薄膜采用预制为设定波纹形状的殷瓦钢或304L不锈钢材质制成；The secondary film layer is located at the interface between the main insulation layer and the secondary insulation layer. The secondary film in the secondary film layer is made of Invar steel or 304L stainless steel that is prefabricated into a set corrugated shape;
所述次层绝缘层包括有多个间隔且呈矩阵式分布设置的次绝缘模块，相邻的两个次绝缘模块之间的第二空隙中填充有柔性保温材料；The secondary insulation layer includes a plurality of secondary insulation modules spaced apart and arranged in a matrix, and the second gap between two adjacent secondary insulation modules is filled with a flexible thermal insulation material;
所述次绝缘模块通过下表面与船体钢板固定连接，在所述绝缘模块和所述船体钢板之间设有用于次绝缘模块的平整安装和与船体钢板间的定距安装的定距板和树脂条；The secondary insulation module is fixedly connected to the hull steel plate through the lower surface, and a distance plate and resin are provided between the insulation module and the hull steel plate for flat installation of the secondary insulation module and fixed distance installation with the hull steel plate. strip;
其中，所述主层薄膜层与次层薄膜层之间的空间形成主层屏蔽空间，所述次层绝缘层与船体结构之间的空间形成次层屏蔽空间，所述主层屏蔽空间内和所述次层屏蔽空间内均填充有惰性保护气。Wherein, the space between the main layer film layer and the sub-layer film layer forms a main layer shielding space, the space between the sub-layer insulation layer and the hull structure forms a sub-layer shielding space, and the main layer shielding space and The secondary shielding space is filled with inert protective gas.
在本发明的一些实施例中，在所述主层绝缘层中，处于平面层的主绝缘模块呈长方体结构，每个主绝缘模块包括由上到下依次固定连接的第一顶部板材、上部保温块、中部板材和下部保温块；In some embodiments of the present invention, in the main insulation layer, the main insulation modules in the plane layer have a rectangular parallelepiped structure, and each main insulation module includes a first top plate, an upper thermal insulation module fixedly connected in sequence from top to bottom. blocks, middle panels and lower insulation blocks;
所述第一顶部板材根据覆盖在其上的主层薄膜的结构设置有非贯穿型应力释放缝；所述上部保温块设有与所述第一顶部板材上设置的非贯穿型应力释放缝相对齐设置的非贯穿型应力释放缝，呈长方形设置的所述上部保温块的面积大于所述第一顶部板材的面积，所述第一顶部板材位于所述上部保温块的中部，所述中部板材和所述下部保温块均与所述上部保温块的尺寸相同，呈长方体结构设置的所述上部保温块和所述下部保温块的四个顶点和长边的中点处均设有用以安装贯穿紧固件的贯穿紧固件安装缺口，所述中部板材在四个顶点和长方形长边中点处设有固定垫块，所述固定垫块处于所述下部保温块中的部分与所述下部保温块上的贯穿紧固件安装缺口形状相适配，所述固定垫块与所述下部保温块固定连接，所述下部保温块底部根据与其相接触的次薄膜层的形状和布置设置有用以容纳次薄膜层上的凸起结构的次薄膜适配槽。The first top plate is provided with a non-penetrating stress relief seam according to the structure of the main layer film covering it; the upper insulation block is provided with a non-penetrating stress relief seam opposite to the non-penetrating stress relief seam provided on the first top plate. The non-penetrating stress relief joints are arranged neatly. The area of the upper insulation block arranged in a rectangular shape is larger than the area of the first top plate. The first top plate is located in the middle of the upper insulation block. The middle plate The size of the upper thermal insulation block and the lower thermal insulation block are the same as the upper thermal insulation block. The four vertices and the midpoints of the long sides of the upper thermal insulation block and the lower thermal insulation block arranged in a rectangular parallelepiped structure are provided with through-holes for installation. The fasteners are installed through the fastener installation gaps. The middle plate is provided with fixed pads at the four vertices and the midpoint of the long side of the rectangle. The part of the fixed pads in the lower insulation block is in contact with the lower part. The shape of the installation notch of the through-fastener on the insulation block matches, the fixed pad block is fixedly connected to the lower insulation block, and the bottom of the lower insulation block is provided with a hole according to the shape and arrangement of the secondary film layer in contact with it. A secondary membrane adapter groove that accommodates a raised structure on the secondary membrane layer.
在本发明的一些实施例中，在所述次层绝缘层中，处于平面区的次绝缘模块呈长方体结构，每个次绝缘模块均包括由上到下依次固定连接的第二顶部板材、十字加强结构和底部板材，所述第二顶部板材的顶部设有焊接板安装槽和焊接垫片安装槽，在所述焊接板安装槽和所述焊接垫片安装槽中分别安装顶部焊接板和顶部焊接垫片后，所述顶部焊接板的上表面和所述顶部焊接垫片的上表面与所述第二顶部板材的上表面齐平，所述焊接垫片安装槽位于所述第二顶部焊接板材上表面中心位置，所述顶部焊接板呈长方形结构，所述焊接板安装槽的尺寸和形状均与所述顶部焊接板适配，位于所述第二顶部板材四边中心处，所述焊接板安装槽的短边与次绝缘模块边缘重合；所述顶部焊接垫片设有用以安装贯穿紧固件的安装固定孔，所述第二顶部板材和所述底部板材之间设有保温块，所述保温块固设于由所述第二顶部板材、所述底部板材以及所述十字加强结构所构成的空间内，且所述保温块与所述空间的尺寸和形状相同，所述十字加强结构的十字中心设有用以安装贯穿紧固件的安装固定孔，所述第二顶部板材和所述底部板材上均设有与所述十字加强结构上安装固定孔对应设置的安装固定孔；In some embodiments of the present invention, in the secondary insulation layer, the secondary insulation modules in the planar area have a rectangular parallelepiped structure, and each secondary insulation module includes a second top plate, a cross fixedly connected in sequence from top to bottom. Strengthen the structure and the bottom plate. The top of the second top plate is provided with a welding plate installation groove and a welding gasket installation groove. The top welding plate and the top are respectively installed in the welding plate installation groove and the welding gasket installation groove. After welding the gaskets, the upper surface of the top welding plate and the upper surface of the top welding gasket are flush with the upper surface of the second top plate, and the welding gasket mounting groove is located on the second top welding gasket. The top welding plate is in the center of the upper surface of the plate. The top welding plate has a rectangular structure. The size and shape of the welding plate installation groove are adapted to the top welding plate. It is located at the center of the four sides of the second top plate. The welding plate The short side of the installation slot coincides with the edge of the secondary insulation module; the top welding gasket is provided with installation fixing holes for installing through fasteners, and an insulation block is provided between the second top plate and the bottom plate, so The insulation block is fixed in the space formed by the second top plate, the bottom plate and the cross reinforcement structure, and the size and shape of the insulation block and the space are the same, and the cross reinforcement structure The center of the cross is provided with a mounting and fixing hole for installing through fasteners, and the second top plate and the bottom plate are both provided with installation and fixing holes corresponding to the mounting and fixing holes on the cross reinforcement structure;
所述次绝缘模块通过下表面与船体钢板固定连接，在所述绝缘模块和所述船体钢板之间设有用于次绝缘模块的平整安装和与船体钢板间的定距安装的定距板和树脂条；The secondary insulation module is fixedly connected to the hull steel plate through the lower surface, and a distance plate and resin are provided between the insulation module and the hull steel plate for flat installation of the secondary insulation module and fixed distance installation with the hull steel plate. strip;
其中，所述主层薄膜层与次层薄膜层之间的空间形成主层屏蔽空间，所述次层绝缘层与船体结构之间的空间形成次层屏蔽空间，所述主层屏蔽空间内和所述次层屏蔽空间内均填充有惰性保护气。Wherein, the space between the main layer film layer and the sub-layer film layer forms a main layer shielding space, the space between the sub-layer insulation layer and the hull structure forms a sub-layer shielding space, and the main layer shielding space and The secondary shielding space is filled with inert protective gas.
在本发明的一些实施例中，所述紧固卡板采用非金属板材制成，且上表面设有用以与所述主层薄膜层焊接固定的焊接板和密封金属片，所述紧固卡板至少包括十字型紧固卡板和一字型紧固卡板；In some embodiments of the present invention, the fastening card is made of non-metallic plate, and the upper surface is provided with a welding plate and a sealing metal sheet for welding and fixing with the main film layer. The plates at least include cross-shaped fastening clamps and straight-shaped fastening clamps;
所述十字型紧固卡板的十字中心设有用以设置所述贯穿紧固件的安装孔，所述密封金属片设于所述安装孔内；The cross center of the cross-shaped fastening clamp plate is provided with a mounting hole for installing the through-fastener, and the sealing metal sheet is located in the mounting hole;
所述一字型紧固卡板的一字中心设有用以设置所述贯穿紧固件的安装孔，所述密封金属片设于所述安装孔内。A mounting hole for installing the through-fastener is provided in the center of the straight-shaped fastening clamp plate, and the sealing metal piece is disposed in the mounting hole.
在本发明的一些实施例中，所述主层屏蔽空间内和所述次层屏蔽空间内均分别安装有温度传感器和可燃气体传感器，用以探测是否存在超低温介质泄漏。In some embodiments of the present invention, temperature sensors and combustible gas sensors are respectively installed in the main layer shielding space and the secondary layer shielding space to detect whether there is leakage of ultra-low temperature media.
在本发明的一些实施例中，所述贯穿紧固件包括：上段部分和下段部分，其中，In some embodiments of the invention, the through fastener includes an upper section and a lower section, wherein,
所述上段部分包括一根帽杆结构、一个压紧结构、一个双头螺杆、一个金属密封帽和一个金属连接片，所述压紧结构设于所述主绝缘模块的上部保温块上所开设的贯穿紧固件安装缺口中，所述压紧结构的下部与所述固定垫块贴合；The upper part includes a cap rod structure, a compression structure, a double-headed screw, a metal sealing cap and a metal connecting piece. The compression structure is located on the upper insulation block of the main insulation module. In the installation gap of the through-fastener, the lower part of the pressing structure fits with the fixed pad;
所述下段部分包括一个焊接基座，一根金属连接杆，所述金属连接杆上端设置有削口螺纹，在放置贯穿紧固件的船体结构相应位置处焊接贯穿紧固件的焊接基座，所述焊接基座内含有一螺母，且在所述焊接基座通过螺母安装贯穿紧固件的金属连接杆，所述金属连接杆穿设在所述次绝缘模块的十字加强结构上设置的安装固定孔内；The lower section includes a welding base and a metal connecting rod. The upper end of the metal connecting rod is provided with a threaded thread. The welding base for welding the through fasteners is welded at the corresponding position of the hull structure where the through fasteners are placed. The welding base contains a nut, and a metal connecting rod that penetrates the fastener is installed on the welding base through the nut. The metal connecting rod is installed on the cross reinforcement structure of the secondary insulation module. inside the fixing hole;
所述帽杆结构穿过所述连接金属片与所述金属连接杆的削口螺纹相连接固定，并将所述连接金属片固定于相应位置的次层薄膜上，所述帽杆结构与对所述压紧结构进行锁紧。The cap rod structure passes through the connecting metal piece and is connected and fixed with the threaded thread of the metal connecting rod, and the connecting metal piece is fixed on the secondary film at the corresponding position. The cap rod structure is connected to the corresponding The pressing structure performs locking.
在本发明的一些实施例中，呈长方体结构的次绝缘模块的四个顶点处均设有用于与船体钢板处的定距螺栓进行定位和连接的定距螺栓孔。In some embodiments of the present invention, the four vertices of the secondary insulation module in a rectangular parallelepiped structure are provided with distance bolt holes for positioning and connecting with distance bolts on the hull steel plate.
在本发明的一些实施例中，所述第一顶部板材、所述中部板材、所述第二顶部板材、所述十字加强结结构和所述底部板材均采用具有设定强度的抗低温非金属材料制成，其中，所述抗低温非金属材料至少能够抗受零下196摄氏度的温度，强度不小于4.0MPa；In some embodiments of the present invention, the first top plate, the middle plate, the second top plate, the cross-reinforced structure and the bottom plate are all made of low-temperature resistant non-metallic materials with set strength. Made of materials, wherein the low-temperature resistant non-metallic material can withstand a temperature of at least minus 196 degrees Celsius, and the strength is not less than 4.0MPa;
所述上部保温块、所述下部保温块、所述保温块均采用具有满足设定导热系数要求的材料制成，其中，所述满足设定导热系数要求为导热系数不大于0.1W/m·K。The upper thermal insulation block, the lower thermal insulation block, and the thermal insulation block are all made of materials that meet the set thermal conductivity requirements, where the thermal conductivity coefficient that meets the set thermal conductivity requirements is not greater than 0.1W/m· K.
在本发明的一些实施例中，所述主层薄膜层的主层薄膜采用预制为设定波纹形状的殷瓦钢或304L不锈钢材质制成。In some embodiments of the present invention, the main layer film of the main layer film layer is made of Invar steel or 304L stainless steel that is prefabricated into a set corrugated shape.
在本发明的一些实施例中，处于平面层的每个主绝缘模块均与六个贯穿紧固件的上段部分进行压紧连接，且与同一主绝缘模块连接的六个贯穿紧固件分别设于呈长方体结构设置的主绝缘模块的四个边角处以及两个长边的中点处。In some embodiments of the present invention, each main insulation module on the plane layer is compressedly connected to the upper portions of six through-fasteners, and the six through-fasteners connected to the same main insulation module are respectively provided with At the four corners and the midpoints of the two long sides of the main insulation module arranged in a rectangular parallelepiped structure.
在本发明的一些实施例中，所述主层薄膜层通过多个具有第一预设尺寸的主层薄膜以焊接方式拼接而成，所述次层薄膜层通过多个具有第二预设尺寸的次层薄膜以焊接方式拼接而成。In some embodiments of the present invention, the main film layer is formed by welding a plurality of primary films with a first preset size, and the secondary film layer is formed by welding a plurality of main films with a second preset size. The sub-layer films are spliced together by welding.
与现有技术相比，本发明实施例提供的一种承载低温液化气体的薄膜型围护系统的有益效果在于：其主、次绝缘模块之间呈交错布置，使得第一空隙和第二空隙也呈交错布置，减小了缝隙处的整体漏热；同时，取消了胶水的使用，缩短了施工周期，降低了施工环境(湿度和温度)以及工序要求。Compared with the existing technology, the beneficial effect of the membrane-type containment system for carrying low-temperature liquefied gas provided by the embodiment of the present invention is that its primary and secondary insulation modules are arranged in a staggered manner, so that the first gap and the second gap It is also arranged in a staggered manner, which reduces the overall heat leakage at the gaps; at the same time, the use of glue is eliminated, the construction cycle is shortened, and the construction environment (humidity and temperature) and process requirements are reduced.
附图说明Description of drawings
图1为本发明实施例提供的承载低温液化气体的薄膜型围护系统的剖面示意图；Figure 1 is a schematic cross-sectional view of a membrane-type containment system carrying low-temperature liquefied gas provided by an embodiment of the present invention;
图2为本发明实施例提供的承载低温液化气体的薄膜型围护系统的三维分解图；Figure 2 is a three-dimensional exploded view of a membrane-type containment system carrying low-temperature liquefied gas provided by an embodiment of the present invention;
图3为本发明实施例提供的承载低温液化气体的薄膜型围护系统的主绝缘模块三维分解图；Figure 3 is a three-dimensional exploded view of the main insulation module of the film-type enclosure system carrying low-temperature liquefied gas provided by the embodiment of the present invention;
图4为本发明实施例提供的承载低温液化气体的薄膜型围护系统的次绝缘模块三维分解图；Figure 4 is a three-dimensional exploded view of the sub-insulation module of the film-type enclosure system carrying low-temperature liquefied gas provided by the embodiment of the present invention;
图5为本发明实施例提供的承载低温液化气体的薄膜型围护系统的次绝缘模块示意图；Figure 5 is a schematic diagram of the secondary insulation module of the film-type enclosure system carrying low-temperature liquefied gas provided by an embodiment of the present invention;
图6为本发明实施例提供的承载低温液化气体的薄膜型围护系统的一字型紧固卡板三维分解图；Figure 6 is a three-dimensional exploded view of a straight-shaped fastening card plate of a film-type enclosure system carrying low-temperature liquefied gas provided by an embodiment of the present invention;
图7为本发明实施例提供的承载低温液化气体的薄膜型围护系统的十字型紧固卡板三维分解图；Figure 7 is a three-dimensional exploded view of a cross-shaped fastening pallet of a membrane-type containment system carrying low-temperature liquefied gas provided by an embodiment of the present invention;
图8为本发明实施例提供的承载低温液化气体的薄膜型围护系统的贯穿紧固件三维分解图。Figure 8 is a three-dimensional exploded view of a through-fastener of a membrane-type containment system carrying low-temperature liquefied gas provided by an embodiment of the present invention.
附图标记Reference signs
1－贯穿紧固件，2－次层绝缘层，3－次层薄膜层，4－主层绝缘层，5－主层薄膜层，6－紧固卡板，7－树脂条，8－定距板，9－第二空隙，10－第一空隙，11－主层薄膜，12－十字型紧固卡板，13－一字型紧固卡板，14－主绝缘模块，15－次层薄膜，16－次绝缘模块，17－第一顶部板材，18－贯穿型应力释放缝，19－上部保温块，20－非贯穿型应力释放缝，21－贯穿紧固件安装缺口，22－中部板材，23－固定垫块，24－下部保温块，25－次层薄膜适配槽，26－顶部焊接板，27－顶部焊接垫片，28－第二顶部板材，29－焊接板安装槽，30－焊接垫片安装槽，31－保温块，32－十字加强结构，33－底部板材，34－安装固定孔，35－定距螺栓孔，36－条状卡板，37－密封金属片，38－密封金属片安装槽，39－固定焊接板安装槽，40－固定焊接板，41－焊接基座，42－螺母，43－金属连接杆，44－削口螺纹，45－连接金属片，46－帽杆结构，47－压块底部金属板，48－碟片弹簧，49－锁紧帽，50－锁紧板，51－桥块，52－弹簧，53－长螺栓，54－压块顶部金属板，55－垫片，56－双头螺杆，57－金属密封帽。1-through fastener, 2-secondary insulation layer, 3-secondary film layer, 4-main insulation layer, 5-main film layer, 6-fastening card plate, 7-resin strip, 8-fixed Spacing plate, 9 - second gap, 10 - first gap, 11 - main layer film, 12 - cross-shaped fastening card plate, 13 - straight fastening card plate, 14 - main insulation module, 15 - secondary layer Membrane, 16-secondary insulation module, 17-first top plate, 18-penetrating stress relief joint, 19-upper insulation block, 20-non-penetrating stress relief joint, 21-through fastener installation gap, 22-middle part Plate, 23 - fixed pad, 24 - lower insulation block, 25 - secondary film adapter slot, 26 - top welding plate, 27 - top welding gasket, 28 - second top plate, 29 - welding plate installation slot, 30 - Welding gasket installation groove, 31 - Insulation block, 32 - Cross reinforcement structure, 33 - Bottom plate, 34 - Installation fixing hole, 35 - Fixed distance bolt hole, 36 - Strip clamp plate, 37 - Sealing metal sheet, 38-Sealed metal sheet mounting slot, 39-Fixed welding plate mounting groove, 40-Fixed welding plate, 41-Welding base, 42-Nut, 43-Metal connecting rod, 44-Cutting thread, 45-Connecting metal sheet, 46-cap rod structure, 47-metal plate at the bottom of the pressure block, 48-disc spring, 49-locking cap, 50-locking plate, 51-bridge block, 52-spring, 53-long bolt, 54-pressure block Top metal plate, 55-gasket, 56-double-headed screw, 57-metal sealing cap.
具体实施方式Detailed ways
为使本领域技术人员更好的理解本发明的技术方案，下面结合附图和具体实施方式对本发明作详细说明。In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be described in detail below with reference to the drawings and specific implementation modes.
此处参考附图描述本申请的各种方案以及特征。Various aspects and features of the present application are described herein with reference to the accompanying drawings.
通过下面参照附图对给定为非限制性实例的实施例的优选形式的描述，本申请的这些和其它特性将会变得显而易见。These and other features of the present application will become apparent from the following description of preferred forms of embodiments given as non-limiting examples with reference to the accompanying drawings.
还应当理解，尽管已经参照一些具体实例对本申请进行了描述，但本领域技术人员能够确定地实现本申请的很多其它等效形式，它们具有如权利要求所述的特征并因此都位于借此所限定的保护范围内。It is further to be understood that, although the present application has been described with reference to a few specific examples, those skilled in the art will be able to undoubtedly implement many other equivalent forms of the present application, which have the characteristics as claimed and therefore all lie within the scope hereof. within a limited scope of protection.
当结合附图时，鉴于以下详细说明，本申请的上述和其它方面、特征和优势将变得更为显而易见。The above and other aspects, features and advantages of the present application will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.
此后参照附图描述本申请的具体实施例；然而，应当理解，所申请的实施例仅仅是本申请的实例，其可采用多种方式实施。熟知和/或重复的功能和结构并未详细描述以根据用户的历史的操作，判明真实的意图，避免不必要或多余的细节使得本申请模糊不清。因此，本文所申请的具体的结构性和功能性细节并非意在限定，而是仅仅作为权利要求的基础和代表性基础用于教导本领域技术人员以实质上任意合适的详细结构多样地使用本申请。Hereinafter, specific embodiments of the present application will be described with reference to the accompanying drawings; however, it should be understood that the applied embodiments are merely examples of the present application, which can be implemented in various ways. Well-known and/or repeated functions and structures are not described in detail to clarify the true intention based on the user's historical operations and to avoid making the application unclear with unnecessary or redundant details. Therefore, specific structural and functional details claimed herein are not intended to be limiting, but merely serve as a basis and representative basis for the claims to teach one skilled in the art to variously utilize the present invention in substantially any suitable detailed structure. Apply.
本说明书可使用词组“在一种实施例中”、“在另一个实施例中”、“在又一实施例中”或“在其它实施例中”，其均可指代根据本申请的相同或不同实施例中的一个或多个。This specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in further embodiments," which may refer to the same thing in accordance with the present application. or one or more of the different embodiments.
本发明实施例提供一种承载低温液化气体的薄膜型围护系统，如图1至图8所示，所述薄膜型围护系统用以容纳超低温介质，包括通过贯穿紧固件1依次连接并固定到船体结构(船体钢板)上的主层薄膜层5、紧固卡板6、主层绝缘层4、次层薄膜层3和次层绝缘层2，也就是，其在主层薄膜层5和次层薄膜层3之间设置了主层绝缘层4和紧固卡板6，在次层薄膜层3和船体结构之间设置有次层绝缘层2，主层薄膜层5、紧固卡板6、主层绝缘层4、次层薄膜层3和次层绝缘层2均通过贯穿紧固件1连接固定到船体结构上，同时，主层薄膜层5与次层薄膜层3之间的空间形成主层屏蔽空间、次层绝缘层2与船体结构之间的空间形成次层屏蔽空间，有效地搭建了双层密封的超低温介质存储载体，解决了超低温介质的存储和防泄漏问题。具体地，Embodiments of the present invention provide a film-type enclosure system for carrying low-temperature liquefied gas. As shown in Figures 1 to 8, the film-type enclosure system is used to accommodate ultra-low-temperature media, including connecting through fasteners 1 and The main film layer 5, the fastening clamp 6, the main insulation layer 4, the secondary film layer 3 and the secondary insulation layer 2 that are fixed to the hull structure (hull steel plate), that is, they are in the main film layer 5 The main layer insulating layer 4 and the fastening card 6 are arranged between the sub-layer film layer 3 and the sub-layer film layer 3. The sub-layer insulating layer 2 is arranged between the sub-layer film layer 3 and the hull structure. The board 6, the main insulation layer 4, the secondary film layer 3 and the secondary insulation layer 2 are all connected and fixed to the hull structure through the through fasteners 1. At the same time, the gap between the main film layer 5 and the secondary film layer 3 The space forms the main layer shielding space, and the space between the secondary insulation layer 2 and the hull structure forms the secondary layer shielding space, effectively building a double-layer sealed ultra-low temperature medium storage carrier and solving the storage and leakage prevention problems of ultra-low temperature media. specifically,
所述主层薄膜层5设置在薄膜型围护系统的最内层，直接与超低温介质接触，同时，所述主层薄膜层5可以是通过多个具有第一预设尺寸的主层薄膜11以焊接方式拼接而成，其中，主层薄膜11采用预制为设定波纹形状的殷瓦钢或304L不锈钢材质制成，进而增强主层薄膜11的热变形能力；The main layer film layer 5 is arranged at the innermost layer of the film-type enclosure system and is directly in contact with the ultra-low temperature medium. At the same time, the main layer film layer 5 can be formed by a plurality of main layer films 11 with a first preset size. Spliced together by welding, the main layer film 11 is made of Invar steel or 304L stainless steel that is prefabricated into a set corrugated shape, thereby enhancing the thermal deformation ability of the main layer film 11;
所述主层绝缘层4包括有多个间隔且呈矩阵式分布设置的主绝缘模块14，相邻的两个主绝缘模块14之间的第一空隙10中填充有柔性保温材料，所述主层绝缘层4用于对主层薄膜层5进行支撑和绝热保温；其中，处于平面区的主绝缘模块14呈长方体结构，每个主绝缘模14块包括由上到下依次固定连接的第一顶部板材17、上部保温块19、中部板材22和下部保温块24，所述第一顶部板材17位于主绝缘模块14中各部件的最顶部，是一块长方形板材，其根据覆盖在其上的主层薄膜层5的结构设置有非贯穿型应力释放缝18，所述上部保温块19位于所述第一顶部板材17的下方，同样是一块长方形板材，其通过胶水与所述第一顶部板材17固定连接，所述上部保温块19设有与所述第一顶部板材17上设置的非贯穿型应力释放缝18相对齐设置的非贯穿型应力释放缝20，呈长方形设置的所述上部保温块19的面积大于所述第一顶部板材17的面积，所述第一顶部板材17位于所述上部保温块19长方形中部，具体可以是位于上部保温块19长方形的中心位置，依次设于所述上部保温块19下部的所述中部板材22和所述下部保温块24均与所述上部保温块19的尺寸相同，所述中部板材22与上部保温块19通过胶水固定连接，且与上部保温块19完全重合，所述下部保温块24通过胶水与中部板材22固定连接，且与所述中部板材22完全重合，呈长方体结构设置的所述上部保温块19和所述下部保温块24的四个顶点和长边的中点处均设有用以安装贯穿紧固件1的贯穿紧固件安装缺口21，所述上部保温块19和所述下部保温块24上的贯穿紧固件安装缺口21形状和尺寸均相同，所述中部板材22在四个顶点和长方形长边中点处设有固定垫块23，所述固定垫块23处于所述下部保温块24中的部分与所述下部保温块24上的贯穿紧固件安装缺口21形状相适配，即，所述固定垫块23的形状尺寸与下部保温块24的贯穿紧固件安装缺口21的形状尺寸一致，且能够填满所述下部保温块24上形成的贯穿紧固件安装缺口21，所述固定垫块23与所述下部保温块24相接触的部分通过胶水粘合固定，所述下部保温块24底部根据与其相接触的次层薄膜层3的形状和布置设置有用以容纳次层薄膜层3上的凸起结构的次层薄膜适配槽25，最终，通过使用两层非金属板材和两层绝热保温材料构成上述的主绝缘模块14；The main insulation layer 4 includes a plurality of main insulation modules 14 spaced apart and arranged in a matrix. The first gap 10 between two adjacent main insulation modules 14 is filled with a flexible thermal insulation material. The insulating layer 4 is used to support and insulate the main film layer 5; among them, the main insulating module 14 in the planar area has a rectangular parallelepiped structure, and each main insulating module 14 includes a first insulating module fixedly connected in sequence from top to bottom. The top plate 17, the upper insulation block 19, the middle plate 22 and the lower insulation block 24. The first top plate 17 is located at the top of each component in the main insulation module 14 and is a rectangular plate. The structure of the thin film layer 5 is provided with a non-penetrating stress relief seam 18. The upper insulation block 19 is located below the first top plate 17. It is also a rectangular plate and is connected to the first top plate 17 through glue. Fixed connection, the upper thermal insulation block 19 is provided with a non-penetrating stress relief seam 20 arranged in alignment with the non-penetrating stress relief seam 18 provided on the first top plate 17, and the upper thermal insulation block is arranged in a rectangular shape. The area of 19 is larger than the area of the first top plate 17. The first top plate 17 is located in the middle of the rectangle of the upper insulation block 19. Specifically, it can be located at the center of the rectangle of the upper insulation block 19, and is located in the upper part in turn. The middle plate 22 and the lower insulation block 24 at the lower part of the thermal insulation block 19 are the same size as the upper thermal insulation block 19 . The middle plate 22 is fixedly connected to the upper thermal insulation block 19 through glue, and is connected to the upper thermal insulation block 19 Completely overlapping, the lower insulation block 24 is fixedly connected to the middle plate 22 through glue, and completely overlaps with the middle plate 22. The upper insulation block 19 and the four vertices of the lower insulation block 24 are arranged in a rectangular parallelepiped structure. There are through-fastener installation notches 21 for installing through-fasteners 1 at the midpoints of the upper insulation block 19 and the lower insulation block 24. The shapes of the through-fastener installation notches 21 on the upper insulation block 19 and the lower insulation block 24 are The dimensions are all the same. The middle plate 22 is provided with fixed pads 23 at the four vertices and the midpoint of the long side of the rectangle. The portion of the fixed pad 23 located in the lower thermal insulation block 24 is consistent with the lower thermal insulation block 24 The shape of the through-fastener installation notch 21 on the upper part of the insulation block 23 is consistent with the shape and size of the through-fastener installation notch 21 of the lower insulation block 24, and can fill the lower part of the insulation block 24. The through-fastener installation notch 21 is formed on the insulation block 24. The portion of the fixed pad 23 in contact with the lower insulation block 24 is fixed by glue. The bottom of the lower insulation block 24 is fixed according to the order of contact with it. The shape and arrangement of the first film layer 3 is provided with a secondary film adapter groove 25 to accommodate the raised structure on the secondary film layer 3. Finally, the above-mentioned main body is formed by using two layers of non-metallic sheets and two layers of thermal insulation materials. Insulation module 14;
在上述实施例中，所述固定垫块23可以是与所述中部板材22一体成型设计，也可以是通过连接紧固件或粘接剂等与所述中部板材22固定连接，若所述固定垫块23与所述中部板材22并非一体成型，则，所述中部板材22在四个顶点和长方形长边中点处设有用以安装贯穿紧固件1的贯穿紧固件安装缺口21，进而在将固定垫块23设于所述中部板材22的贯穿紧固件安装缺口21内并与所述中部板材22固定连接。In the above embodiment, the fixed pad 23 may be designed to be integrally formed with the middle plate 22 , or may be fixedly connected to the middle plate 22 through connecting fasteners or adhesives. The pad 23 and the middle plate 22 are not integrally formed, so the middle plate 22 is provided with through-fastener installation gaps 21 for installing through-fasteners 1 at the four vertices and the midpoint of the long side of the rectangle, and then The fixing pad 23 is disposed in the through-fastener installation notch 21 of the middle plate 22 and is fixedly connected to the middle plate 22 .
所述紧固卡板6设置在主层薄膜层5和主层绝缘层4之间，所述紧固卡板6包括至少一个位于所述第一空隙10上部且搭设在第一空隙10两侧的主绝缘模块14上的条状卡板36，所述条状卡板36采用非金属板材制成，所述紧固卡板6的上表面设有用以与所述主层薄膜层5焊接固定焊接板40和密封金属片37，具体地，所述紧固卡板6在与呈长方体结构的主绝缘模块14的长方体四个顶点和长边中点对应处均开设有用以连接固定所述贯穿紧固件1的安装固定孔34，所述紧固卡板6上的安装固定孔34处于所述条状卡板36的密封金属片安装槽38内，且所述密封金属片37在相应位置也设有贯穿紧固件安装固定孔34，所述密封金属片37通过贯穿紧固件1与条状卡板36相连接固定，也就是，呈长方体结构的主绝缘模块14在长方体四个顶点和长边中点处通过设置的紧固卡板6上的安装固定孔34与贯穿紧固件1连接固定；所述条状卡板36上还设有固定焊接板安装槽39用于安装所述固定焊接板40，所述固定焊接板安装槽39根据主层薄膜11的布置进行设置呈长方形结构，所述固定焊接板40与所述固定焊接板安装槽39的尺寸相适配，但其长度略小于所述固定焊接板安装槽39的长度，所述固定焊接板40通过铆接或粘接的型式与条状卡板36相连接固定。The fastening card plate 6 is disposed between the main layer film layer 5 and the main layer insulating layer 4. The fastening card plate 6 includes at least one located above the first gap 10 and erected on both sides of the first gap 10. The strip-shaped clamping plate 36 on the main insulation module 14 is made of non-metallic sheet material. The upper surface of the fastening clamping plate 6 is provided with a welding and fixing device to the main layer film layer 5. Welding plate 40 and sealing metal sheet 37. Specifically, the fastening clamping plate 6 is provided at the four vertices and the midpoint of the long side of the main insulation module 14 of the rectangular parallelepiped structure to connect and fix the through-holes. The mounting and fixing holes 34 of the fastener 1, the mounting and fixing holes 34 on the fastening clamp plate 6 are located in the sealing metal sheet mounting groove 38 of the strip clamp plate 36, and the sealing metal sheet 37 is in the corresponding position. There are also mounting and fixing holes 34 for through-fasteners. The sealing metal sheet 37 is connected and fixed with the strip-shaped clamping plate 36 through the through-fasteners 1. That is, the main insulation module 14 of a rectangular parallelepiped structure has four vertices of the rectangular parallelepiped. and the midpoint of the long side are connected and fixed with the through-fastener 1 through the installation fixing holes 34 on the fastening clamp plate 6; the strip clamp plate 36 is also provided with a fixed welding plate mounting slot 39 for installation. The fixed welding plate 40 and the fixed welding plate installation groove 39 are arranged in a rectangular structure according to the arrangement of the main layer film 11. The fixed welding plate 40 matches the size of the fixed welding plate installation groove 39, but its The length is slightly smaller than the length of the fixed welding plate installation groove 39 . The fixed welding plate 40 is connected and fixed with the strip clamping plate 36 by riveting or bonding.
所述次层薄膜层3位于所述主层绝缘层4远离超低温介质的一侧，处于主层绝缘层4和次层绝缘层2交界面处，所述次层薄膜层3包括以拼接方式连接的多个具有第二预设尺寸的次层薄膜15，其能够在主层薄膜层5发生泄漏时，通过次层薄膜层3承接超低温介质，避免船体结构与超低温介质相接触而造成的安全风险，所述次层薄膜15采用预制为设定波纹形状的殷瓦钢或304L不锈钢材质制成；The sub-layer thin film layer 3 is located on the side of the main layer insulating layer 4 away from the ultra-low temperature medium, at the interface between the main layer insulating layer 4 and the sub-layer insulating layer 2. The sub-layer thin film layer 3 consists of two layers connected in a splicing manner. A plurality of secondary membranes 15 with a second preset size, which can receive the ultra-low temperature medium through the secondary membrane layer 3 when the main membrane layer 5 leaks, thereby avoiding safety risks caused by the contact between the hull structure and the ultra-low temperature medium. , the secondary film 15 is made of Invar steel or 304L stainless steel that is prefabricated into a set corrugated shape;
所述次层绝缘层2包括有多个间隔且呈矩阵式分布设置的次绝缘模块16，相邻的两个次绝缘模块16之间的第二空隙9中填充有柔性保温材料；其中，处于平面区的次绝缘模块16呈长方体结构，每个次绝缘模块16均包括由上到下依次固定连接的第二顶部板材28、十字加强结构32和底部板材33，所述第二顶部板材28位于次绝缘模块16中各部件的最顶部，是一块长方形板材，同时，每个次绝缘模块16还包括有顶部焊接垫片27、顶部焊接板26和四个保温块31，所述第二顶部板材28的顶部设有焊接板安装槽29和焊接垫片安装槽30，所述顶部焊接板26和所述顶部焊接垫片27分别安装在所述焊接板安装槽29和所述焊接垫片安装槽30中后，所述顶部焊接板26的上表面和所述顶部焊接垫片27的上表面与所述第二顶部板材28的上表面齐平，所述焊接垫片安装槽30位于所述第二顶部板材28上表面中心位置，所述顶部焊接板26呈长方形结构，所述焊接板安装槽29的尺寸和形状均与顶部焊接板26适配，所述焊接板安装槽29的长度略大于所述顶部焊接板26的长度，且位于所述第二顶部板材28四边中心处，所述焊接板安装槽29的短边与次绝缘模块16边缘重合，所述顶部焊接板26和顶部焊接垫片27与第二顶部板材28可以通过胶水或者铆钉相连接。同时，所述顶部焊接板26和所述顶部焊接垫片27用于将次层薄膜15连接固定到次绝缘模块16上，所述顶部焊接垫片27设有用以安装贯穿紧固件1的安装固定孔34，所述十字加强结构32位于第二顶部板材28下方，所述十字加强结构32的外围与第二顶部板材28相重合，同时，所述十字加强结构32与第二顶部板材28之间可以通过胶水或者铆钉相连接，所述底部板材33位于所述十字加强结构32下方，所述底部板材33的尺寸形状与第二顶部板材28相同，且外围与十字加强结构32和第二顶部板材28相重合，所述底部板材33与十字加强结构32用胶水或者铆钉相连接，所述第二顶部板材28和所述底部板材33之间设有保温块31，所述保温块31固设于由所述第二顶部板材28、所述底部板材33以及所述十字加强结构32所构成的空间内，且所述保温块31与所述空间的尺寸和形状相同，即，可以是使所述保温块31的尺寸形状根据第二顶部板材28和底部板材33外围与十字加强结构32所构成的空间的尺寸形状确定，同时，保温块31应充满整个空间，且与第二顶部板材28、底部板材33和十字加强结构32的外围相重合，所述保温块31与第二顶部板材28、底部板材33和十字加强结构32相接触处均用胶水相连接固定，所述十字加强结构32的十字中心设有用以安装贯穿紧固件1的安装固定孔34，所述第二顶部板材28和所述底部板材33上均设有与所述十字加强结构32上安装固定孔34对应设置的安装固定孔34；也就是，使得呈长方体结构的次绝缘模块16在长方体中心沿厚度方向形成有用以安装和固定贯穿紧固件1的安装固定孔34。The secondary insulation layer 2 includes a plurality of secondary insulation modules 16 spaced apart and arranged in a matrix. The second gap 9 between two adjacent secondary insulation modules 16 is filled with a flexible thermal insulation material; wherein, The secondary insulation modules 16 in the plane area have a rectangular parallelepiped structure. Each secondary insulation module 16 includes a second top plate 28, a cross reinforcing structure 32 and a bottom plate 33 that are fixedly connected in sequence from top to bottom. The second top plate 28 is located at The top of each component in the secondary insulation module 16 is a rectangular plate. At the same time, each secondary insulation module 16 also includes a top welding gasket 27, a top welding plate 26 and four insulation blocks 31. The second top plate The top of 28 is provided with a welding plate mounting slot 29 and a welding gasket mounting slot 30, and the top welding plate 26 and the top welding gasket 27 are respectively installed in the welding plate mounting slot 29 and the welding gasket mounting slot. After 30 seconds, the upper surface of the top welding plate 26 and the upper surface of the top welding gasket 27 are flush with the upper surface of the second top plate 28, and the welding gasket mounting groove 30 is located in the third The top welding plate 26 is in the center of the upper surface of the second top plate 28. The top welding plate 26 has a rectangular structure. The size and shape of the welding plate installation groove 29 are adapted to the top welding plate 26. The length of the welding plate installation groove 29 is slightly larger than The length of the top welding plate 26 is located at the center of the four sides of the second top plate 28. The short side of the welding plate installation groove 29 coincides with the edge of the secondary insulation module 16. The top welding plate 26 and the top welding pad The sheet 27 and the second top panel 28 may be connected by glue or rivets. At the same time, the top welding plate 26 and the top welding gasket 27 are used to connect and fix the secondary membrane 15 to the secondary insulation module 16 , and the top welding gasket 27 is provided with a mounting for installing the through fastener 1 The fixing hole 34, the cross reinforcement structure 32 is located below the second top plate 28, the periphery of the cross reinforcement structure 32 coincides with the second top plate 28, and at the same time, the cross reinforcement structure 32 and the second top plate 28 are can be connected by glue or rivets. The bottom plate 33 is located below the cross reinforcing structure 32. The size and shape of the bottom plate 33 is the same as the second top plate 28, and its periphery is connected with the cross reinforcing structure 32 and the second top. The plates 28 overlap, the bottom plate 33 and the cross reinforcement structure 32 are connected with glue or rivets, an insulation block 31 is provided between the second top plate 28 and the bottom plate 33, and the insulation block 31 is fixed In the space formed by the second top plate 28, the bottom plate 33 and the cross reinforcement structure 32, and the size and shape of the insulation block 31 are the same as that of the space, that is, it can be made The size and shape of the insulation block 31 is determined according to the size and shape of the space formed by the periphery of the second top plate 28 and the bottom plate 33 and the cross reinforcement structure 32. At the same time, the insulation block 31 should fill the entire space and be in contact with the second top plate 28 and 32. The peripheries of the bottom plate 33 and the cross reinforcement structure 32 overlap. The contact points between the insulation block 31 and the second top plate 28, the bottom plate 33 and the cross reinforcement structure 32 are all connected and fixed with glue. The cross reinforcement structure 32 has The center of the cross is provided with a mounting and fixing hole 34 for installing the through fastener 1. The second top plate 28 and the bottom plate 33 are both provided with mounting holes 34 corresponding to the mounting and fixing holes 34 on the cross reinforcement structure 32. Fixing holes 34; that is, the secondary insulation module 16 having a rectangular parallelepiped structure is formed with a mounting and fixing hole 34 along the thickness direction in the center of the rectangular parallelepiped for installing and fixing the through fastener 1.
所述次绝缘模块16通过下表面与船体钢板固定连接，在所述次绝缘模块16和所述船体钢板之间设有用于次绝缘模块16的平整安装和与船体钢板间的定距安装的定距板8和树脂条7，同时，所述次绝缘模块16四个顶点处设有用于与船体钢板处的定距用的螺栓进行定位和连接的定距螺栓孔35；The secondary insulation module 16 is fixedly connected to the hull steel plate through the lower surface. There is a fixed position between the secondary insulation module 16 and the hull steel plate for the flat installation of the secondary insulation module 16 and the fixed distance installation between the secondary insulation module 16 and the hull steel plate. distance plate 8 and resin strip 7. At the same time, the four vertices of the secondary insulation module 16 are provided with distance bolt holes 35 for positioning and connecting with distance bolts at the hull steel plate;
其中，所述主层薄膜层5及与次层薄膜层3之间的空间形成主层屏蔽空间，所述次层薄膜层3及船体结构之间的空间形成次层屏蔽空间，所述主层屏蔽空间内和所述次层屏蔽空间内均填充有惰性保护气。Wherein, the space between the main layer film layer 5 and the sub-layer film layer 3 forms a main layer shielding space, and the space between the sub-layer film layer 3 and the hull structure forms a sub-layer shielding space. The main layer Both the shielded space and the secondary shielded space are filled with inert protective gas.
对于上述的薄膜型围护系统，其在安装时，需要先在船体结构的舱壁进行划线，依据划线在舱壁上用以放置定距板8的位置处焊接垂直舱壁设置的螺柱，以及安装套设在螺柱上的定距板8，其中，所述定距板8的四角关于所述定距板中心线对称设置的设有四个通孔，每个通孔中穿设有一螺柱。For the above-mentioned membrane-type enclosure system, when installing it, it is necessary to first mark the bulkhead of the hull structure, and according to the mark, weld the screws provided on the vertical bulkhead at the position where the distance plate 8 is placed on the bulkhead. column, and install the distance plate 8 that is sleeved on the stud. The four corners of the distance plate 8 are symmetrically arranged with respect to the center line of the distance plate. There are four through holes in each through hole. Features a stud.
所述贯穿紧固1件包括：上段部分和下段部分，所述上段部分包括一根帽杆结构46、一个压紧结构、一个双头螺杆56和一个金属密封帽57，所述压紧结构包括一个压块底部金属板47，一个碟片弹簧48，一个锁紧帽49，一个锁紧板50，一个桥块51，四个弹簧52，四个长螺栓53，一个压块顶部金属板54，四个垫片55；所述下段部分包括一个焊接基座41以及包含在焊接基座41内的一个螺母42，一根金属连接杆43以及在金属连接杆43上端设置的削口螺纹44，其中，所述压紧结构设于所述主绝缘模块14的上部保温块上19所开设的安装缺口中，所述压紧结构的下部与所述固定垫块23贴合，所述帽杆结构46穿过所述连接金属片45与金属连接杆43的削口螺纹44相连接固定，并将连接金属片45固定于相应位置的次层薄膜15上，所述帽杆结构46与对所述压紧结构进行锁紧；在放置贯穿紧固件1的船体结构相应位置处焊接贯穿紧固件的焊接基座41，所述焊接基座内含有一螺母42，且在所述焊接基座41通过螺母42安装贯穿紧固件1的金属连接杆43，所述金属连接杆43穿设在所述次绝缘模块16的十字加强结构32上设置的安装固定孔34内。The through-fastening piece includes: an upper part and a lower part. The upper part includes a cap rod structure 46, a compression structure, a double-headed screw 56 and a metal sealing cap 57. The compression structure includes A metal plate 47 at the bottom of the pressure block, a disc spring 48, a locking cap 49, a locking plate 50, a bridge block 51, four springs 52, four long bolts 53, a metal plate 54 at the top of the pressure block, Four washers 55; the lower section includes a welding base 41 and a nut 42 contained in the welding base 41, a metal connecting rod 43 and a cutting thread 44 provided at the upper end of the metal connecting rod 43, wherein , the pressing structure is arranged in the installation gap opened on the upper insulation block 19 of the main insulation module 14, the lower part of the pressing structure is fit with the fixed pad 23, and the cap rod structure 46 The connecting metal piece 45 is connected and fixed with the cut thread 44 of the metal connecting rod 43, and the connecting metal piece 45 is fixed on the secondary film 15 at the corresponding position. The cap rod structure 46 is connected to the pressing force. The fastening structure is locked; the welding base 41 of the through-fastener is welded at the corresponding position of the hull structure where the through-fastener 1 is placed. The welding base contains a nut 42, and the welding base 41 passes The nut 42 is installed with a metal connecting rod 43 that penetrates the fastener 1 . The metal connecting rod 43 is inserted into the mounting and fixing hole 34 provided on the cross reinforcement structure 32 of the secondary insulation module 16 .
所述定距板8上的每个螺柱分别对应四个不同且相邻的次绝缘模块16的一角，其中，处于平面区的次绝缘模块16均呈矩形设置，且在四个边角处均开设定距螺栓孔35，所述定距螺栓孔35用以容纳穿设在定距板8上设置的螺柱以及与螺柱螺纹连接的紧固螺母。同时，所述底部板材33上还设有与所述定距螺栓孔35同心设置的开孔，且所述第二顶部板材28和所述保温块31上开设有与所述通孔同心设置且孔径为所述通孔孔径的2－4倍的定距螺栓孔35，进而方便垫片，紧固螺母和工装工具锁紧定距板。进一步地，在每块定距板8周围四个次绝缘模块16上穿设在定距板8上的螺柱在通过螺母锁紧后，采用与保温块31相同材质的柱塞将每个次绝缘模块上开设的定距螺栓孔35填塞，以使得每个次绝缘模块16之间实现互联的效果，对每个次绝缘模块16均起到辅助锚固作用。Each stud on the distance plate 8 corresponds to a corner of four different and adjacent secondary insulating modules 16. The secondary insulating modules 16 in the planar area are all arranged in a rectangular shape, and are located at the four corners. The distance bolt holes 35 are all opened, and the distance bolt holes 35 are used to accommodate studs provided through the distance plate 8 and fastening nuts threadedly connected to the studs. At the same time, the bottom plate 33 is also provided with openings concentrically arranged with the distance bolt holes 35 , and the second top plate 28 and the insulation block 31 are provided with openings concentrically arranged with the through holes. The distance bolt hole 35 has an aperture that is 2-4 times the diameter of the through hole, thereby facilitating the locking of the distance plate with gaskets, fastening nuts and tooling tools. Further, after the studs on the four secondary insulation modules 16 around each spacer plate 8 are locked with nuts, a plunger of the same material as the insulation block 31 is used to insulate each secondary insulation module. The spaced bolt holes 35 opened on the insulating modules are filled to achieve an interconnection effect between each secondary insulating module 16 and play an auxiliary anchoring role for each secondary insulating module 16 .
在本实施例中，所述定距板8采用胶合板或满足刚度要求的塑料类替代材料所制成的板材，厚度设置为1mm、2mm、5mm或10mm中的至少一种，所述定距板是用以进行找平，通过采用不同厚度的定距板叠加组合，使得次绝缘模块16的底部板材33与舱壁之间的距离为10mm；所述定距板8上通孔的孔径大于螺柱上螺纹外径0.5－2mm。In this embodiment, the distance plate 8 is made of plywood or a plastic alternative material that meets the stiffness requirements, and the thickness is set to at least one of 1 mm, 2 mm, 5 mm or 10 mm. It is used for leveling, and the distance between the bottom plate 33 of the secondary insulation module 16 and the bulkhead is 10 mm by stacking and combining spacer plates of different thicknesses; the aperture of the through hole on the spacer plate 8 is larger than the stud The outer diameter of the upper thread is 0.5-2mm.
在将所述次绝缘模块16安装到定距板8后，进行贯穿紧固件1的安装，将贯穿紧固件1的金属连接杆43穿设在所述次绝缘模块16中部的安装固定孔34中，并将贯穿紧固件1的上段部分的帽杆结构46(具体为上段部分的帽杆结构46所设置的圆柱帽)与所述金属连接杆43旋紧固定，贯穿紧固件1的下段部分的连接对处于平面区的每个次绝缘模块16起到主要锚固作用，同时，定距板8、树脂条7及贯穿紧固件1的下段部分的使用可使得整个围护系统的次层绝缘层2有效锚固到内舱壁上。After the secondary insulation module 16 is installed on the distance plate 8 , the through fastener 1 is installed, and the metal connecting rod 43 of the through fastener 1 is inserted into the installation fixing hole in the middle of the secondary insulating module 16 34, and screw and fix the cap rod structure 46 of the upper part of the penetrating fastener 1 (specifically, the cylindrical cap provided on the cap rod structure 46 of the upper part) with the metal connecting rod 43, and the penetrating fastener 1 The connection of the lower part plays a main anchoring role for each secondary insulation module 16 in the plane area. At the same time, the use of the distance plate 8, the resin strip 7 and the lower part of the through fastener 1 can make the entire enclosure system more secure. The secondary insulation layer 2 is effectively anchored to the inner bulkhead.
在本实施例中，在进行舱壁上部及顶部的次绝缘模块16安装过程中，在次绝缘模块16和定距板8安装好后还需托举设备进行临时稳固，并在贯穿紧固件1上段部分的帽杆结构46与所述金属连接杆43旋紧固定，同时所述连接金属片45通过帽杆结构46固定到所述次层薄膜层3表面，并通过焊接将所述连接金属片45、次层薄膜层15和帽杆结构46进行密封固定后，撤销托举设备。In this embodiment, during the installation process of the secondary insulation module 16 on the upper part and the top of the bulkhead, after the secondary insulation module 16 and the distance plate 8 are installed, it is necessary to lift the equipment for temporary stabilization, and install the through fasteners. 1. The cap rod structure 46 of the upper part is screwed and fixed to the metal connecting rod 43. At the same time, the connecting metal sheet 45 is fixed to the surface of the sub-layer film layer 3 through the cap rod structure 46, and the connecting metal piece 45 is welded. After the sheet 45, the secondary film layer 15 and the cap rod structure 46 are sealed and fixed, the lifting device is removed.
次绝缘模块16的底部板材33在四个边角处均开设的用以安装螺柱的开孔的孔径大于螺柱上螺纹外径0.5－2mm。The bottom plate 33 of the secondary insulation module 16 has openings for installing studs at four corners, each having a hole diameter 0.5-2 mm larger than the outer diameter of the thread on the stud.
在次层绝缘层2安装完毕后，进行次层薄膜层3安装，每个次层薄膜15的边界与设于次绝缘模块16的第二顶部板材28上的顶部焊接板26或顶部焊接垫片27进行焊接固定，在单块次层薄膜15放至相应位置后，在次层薄膜15边界不接触顶部焊接板26和顶部焊接垫片27的位置铺设热保护层；先对次层薄膜15与顶部焊接板26接触的位置或与顶部焊接垫片27接触的位置进行间断点焊，待一整块次层薄膜15焊接好后，将相邻的次层薄膜15搭接在上一个次层薄膜15上，对搭接的边线进行连续焊接；如此循环施工至将平面区的次层薄膜相互之间的焊接密封。After the installation of the secondary insulation layer 2 is completed, the secondary film layer 3 is installed. The boundary of each secondary film 15 is connected to the top welding plate 26 or the top welding gasket provided on the second top plate 28 of the secondary insulation module 16 27 is welded and fixed. After the single piece of sub-layer film 15 is placed in the corresponding position, a thermal protective layer is laid at the position where the boundary of the sub-layer film 15 does not contact the top welding plate 26 and the top welding gasket 27; first, the sub-layer film 15 and The top welding plate 26 is in contact with the position or the top welding gasket 27 is in contact with intermittent spot welding. After the entire sub-layer film 15 is welded, the adjacent sub-layer film 15 is overlapped with the previous sub-layer film. 15, perform continuous welding on the overlapping edges; perform this cycle until the secondary films in the flat area are welded and sealed to each other.
在完成次层薄膜层3的安装后，进行主绝缘模块14的安装，在平面区中，每个主绝缘模块14均与六个贯穿紧固件1的上段部分进行压紧连接，六个所述贯穿紧固件1分别设于呈长方体结构设置的主绝缘模块14的四个边角处以及两个长边的中点处；待处于同一个角处所对应的四个主绝缘模块14安置好后，则在所述角处安装相应的贯穿紧固件1的压紧结构，所述压紧结构的压块底部金属板压在四块相邻主绝缘模块14的中部板材22上，同时，相邻的两个主绝缘模块14长边中点处设置的贯穿紧固件1的压紧结构的下压块顶部金属板54在相邻主绝缘模块14的中部板材22上，所述压紧结构均分别与所述金属连接杆43的上端固定连接并锁紧。After the installation of the secondary film layer 3 is completed, the main insulation modules 14 are installed. In the planar area, each main insulation module 14 is compressed and connected to the upper sections of the six through-fasteners 1. The through fasteners 1 are respectively provided at the four corners and the midpoints of the two long sides of the main insulation module 14 arranged in a rectangular parallelepiped structure; wait until the four main insulation modules 14 corresponding to the same corner are placed. Finally, a corresponding compression structure of the through-fastener 1 is installed at the corner. The bottom metal plate of the compression block of the compression structure is pressed on the middle plates 22 of the four adjacent main insulation modules 14. At the same time, The top metal plate 54 of the lower pressing block of the pressing structure of the through fastener 1 is provided at the midpoint of the long sides of the two adjacent main insulating modules 14, and is on the middle plate 22 of the adjacent main insulating modules 14. The pressing The structures are fixedly connected and locked with the upper end of the metal connecting rod 43 respectively.
在本发明的一些实施例中，所述紧固卡板6呈十字型结构或呈一字型结构，即，所述紧固卡板6包括十字型紧固卡板62和一字型紧固卡板63，并采用易于加工且具有抗低温性能的非金属板材制成，所述紧固卡板6的上表面与主层薄膜层5接触，且设有用以与所述主层薄膜11焊接的固定焊接板40和密封金属片37，具体地，所述十字型紧固卡板62的四个长条边和所述一字型紧固卡板63的两个长条边上均固设有用以与主层薄膜11焊接固定的固定焊接板40；同时，十字型紧固卡板62的十字中心和呈一字型紧固卡板63的一字中心均设有用以设置所述贯穿紧固件1的安装固定孔34，进而方便贯穿紧固件1的安装和固定。作为示例，所述紧固卡板6采用胶合木或满足刚度要求的替代材料所制成的板材，所述卡板厚度的范围为6mm－15mm；设于所述紧固卡板6上的安装固定孔34上端形成有直径60－120mm，深度为1.5－3mm的圆型密封金属片安装槽38，所述凹槽内嵌设有匹配凹槽尺寸的带有中心孔的密封金属片37。In some embodiments of the present invention, the fastening clamp 6 has a cross-shaped structure or a straight-shaped structure, that is, the fastening clamp 6 includes a cross-shaped fastening clamp 62 and a straight-shaped fastening The clamping plate 63 is made of a non-metallic plate that is easy to process and has low-temperature resistance. The upper surface of the fastening clamping plate 6 is in contact with the main layer film layer 5 and is provided with a structure for welding with the main layer film 11 The fixed welding plate 40 and the sealing metal sheet 37 are fixed on the four long sides of the cross-shaped fastening clamp 62 and the two long sides of the straight-shaped fastening clamp 63. There is a fixed welding plate 40 for welding and fixing with the main layer film 11; at the same time, the cross center of the cross-shaped fastening clamp 62 and the one-shaped center of the straight-shaped fastening clamp 63 are both provided with the through fastening. The installation and fixing holes 34 of the fastener 1 facilitate the installation and fixation of the through fastener 1. As an example, the fastening clamp plate 6 is made of glulam or an alternative material that meets the stiffness requirements. The thickness of the clamp plate ranges from 6mm to 15mm; A circular sealing metal sheet mounting groove 38 with a diameter of 60-120mm and a depth of 1.5-3mm is formed on the upper end of the fixing hole 34. A sealing metal sheet 37 with a central hole matching the groove size is embedded in the groove.
在所述紧固卡板6安装完毕后，进行主层薄膜层5安装，每个主层薄膜11的边界均与设于主绝缘模块14上的紧固卡板6上的固定焊接板40和密封金属片37进行焊接固定，具体包括：将第一块安装在焊接板上的主层薄膜11以间断点焊方式固定到固定焊接板40上和密封金属片37上，与第一块主层薄膜11相邻的主层薄膜11搭接在第一块主层薄膜11上，将搭接部分进行整条边线的密封焊接，并将搭在紧固卡板6中部位置的贯穿孔内的密封金属片37上的主层薄膜11边界焊接在所述密封金属片37上，并将贯穿紧固件的上段部分的上端金属密封帽57焊接在密封金属片37上，实现整个主层薄膜层的密封。After the installation of the fastening clamp plate 6 is completed, the main layer film layer 5 is installed. The boundary of each main layer film 11 is connected with the fixed welding plate 40 and the fixed welding plate 40 on the fastening clamp plate 6 on the main insulation module 14. The sealing metal sheet 37 is welded and fixed, which specifically includes: fixing the first main layer film 11 installed on the welding plate to the fixed welding plate 40 and the sealing metal sheet 37 by intermittent spot welding, and connecting it with the first main layer film 11. The adjacent main layer film 11 of the film 11 overlaps the first main layer film 11. The overlapping portion is sealed and welded along the entire edge, and the overlapping portion is sealed in the through hole in the middle of the fastening clamp plate 6. The boundary of the main layer film 11 on the metal sheet 37 is welded to the sealing metal sheet 37, and the upper metal sealing cap 57 that penetrates the upper part of the fastener is welded to the sealing metal sheet 37 to achieve the sealing of the entire main layer film layer. seal.
在本发明的一些实施例中，所述主层屏蔽空间内和所述次层屏蔽空间内均分别安装有温度传感器和可燃气体传感器，用以探测是否存在超低温介质泄漏，作为示例，如用以探测是否存在LNG泄漏。In some embodiments of the present invention, temperature sensors and combustible gas sensors are respectively installed in the main layer shielding space and the secondary layer shielding space to detect whether there is leakage of ultra-low temperature media. As an example, such as Detect whether there is an LNG leak.
在上述实施例中，所述第一顶部板材17、所述中部板材22、所述第二顶部板材28、所述十字加强结构32和所述底部板材33均采用具有设定强度的抗低温非金属材料制成，其中，所述抗低温非金属材料至少能够抗受零下196摄氏度的温度，强度大于等于4.0MPa。In the above embodiment, the first top plate 17 , the middle plate 22 , the second top plate 28 , the cross reinforcement structure 32 and the bottom plate 33 are all made of low-temperature resistant non-woven fabrics with set strength. Made of metal materials, wherein the low-temperature resistant non-metallic material can withstand a temperature of at least minus 196 degrees Celsius, and has a strength of greater than or equal to 4.0MPa.
同时，所述上部保温块19、所述下部保温块24、所述保温块31位均采用具有满足设定导热系数要求的材料制成，其中，所述满足设定导热系数要求为导热系数不大于0.1W/(m·K)。At the same time, the upper thermal insulation block 19, the lower thermal insulation block 24, and the thermal insulation block 31 are all made of materials that meet the set thermal conductivity requirements. The thermal conductivity coefficient that satisfies the set thermal conductivity requirements is that the thermal conductivity is not Greater than 0.1W/(m·K).
以上实施例仅为本发明的示例性实施例，不用于限制本发明，本发明的保护范围由权利要求书限定。本领域技术人员可以在本发明的实质和保护范围内，对本发明做出各种修改或等同替换，这种修改或等同替换也应视为落在本发明的保护范围内。The above embodiments are only exemplary embodiments of the present invention and are not used to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions should also be deemed to fall within the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311518196.9ACN117602013A (en) | 2023-11-14 | 2023-11-14 | A membrane-type containment system carrying low-temperature liquefied gas |
| PCT/CN2024/101850WO2025102749A1 (en) | 2023-11-14 | 2024-06-27 | Membrane containment system bearing cryogenic liquefied gas |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311518196.9ACN117602013A (en) | 2023-11-14 | 2023-11-14 | A membrane-type containment system carrying low-temperature liquefied gas |
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| CN117602013Atrue CN117602013A (en) | 2024-02-27 |
| Application Number | Title | Priority Date | Filing Date |
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| CN202311518196.9APendingCN117602013A (en) | 2023-11-14 | 2023-11-14 | A membrane-type containment system carrying low-temperature liquefied gas |
| Country | Link |
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| CN (1) | CN117602013A (en) |
| WO (1) | WO2025102749A1 (en) |
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| WO2025102749A1 (en)* | 2023-11-14 | 2025-05-22 | 沪东中华造船(集团)有限公司 | Membrane containment system bearing cryogenic liquefied gas |
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|---|---|---|---|---|
| WO2025102749A1 (en)* | 2023-11-14 | 2025-05-22 | 沪东中华造船(集团)有限公司 | Membrane containment system bearing cryogenic liquefied gas |
| WO2025102748A1 (en)* | 2023-11-14 | 2025-05-22 | 沪东中华造船(集团)有限公司 | Membrane containment system for bearing cryogenic liquid cargo |
| Publication number | Publication date |
|---|---|
| WO2025102749A1 (en) | 2025-05-22 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |