技术领域technical field
本发明涉及一种油浸式电气设备的绝缘油样取样装置，具体涉及一种变压器绝缘油密封取样装置。The invention relates to an insulating oil sampling device for oil-immersed electrical equipment, in particular to a transformer insulating oil sealing sampling device.
背景技术Background technique
关于变压器绝缘油色谱分析、击穿电压、水分、含气量、颗粒度等检测项目中对取样质量要求很高，依照GB/T 7597-2007中采用注射器、三通阀及软管相互连接进行采样，因取样装置本身的原因或取样装置与相关部件之间的密封效果不好，所取油样实验分析后，实验数据不能真正反映油浸式电气设备的健康状况。实际取样过程中，因取样阀门密封不严，会有绝缘油渗漏在取样阀周围，不仅污染环境，而且会误导运行人员以为变压器本体存在浸油现象。油浸式电气设备厂家较多，并非所有的取样阀均能满足GB/T 7595-2007的取样要求，一般情况下采用直接取样，油样会受到外界空气的污染，影响实验数据的真实性。Regarding the chromatographic analysis of transformer insulating oil, breakdown voltage, moisture, gas content, particle size and other testing items, the sampling quality is very high. According to GB/T 7597-2007, the syringe, three-way valve and hose are connected to each other for sampling. Due to the sampling device itself or the sealing effect between the sampling device and related components is not good, after the experimental analysis of the oil samples taken, the experimental data cannot truly reflect the health of the oil-immersed electrical equipment. During the actual sampling process, because the sampling valve is not tightly sealed, insulating oil will leak around the sampling valve, which not only pollutes the environment, but also misleads the operators into thinking that the transformer body is immersed in oil. There are many oil-immersed electrical equipment manufacturers, and not all sampling valves can meet the sampling requirements of GB/T 7595-2007. Generally, direct sampling is used, and the oil sample will be polluted by the outside air, which will affect the authenticity of the experimental data.
发明内容Contents of the invention
本发明所要解决的技术问题是，提供一种结构细致精良、密封效果好、能与多种不同形状阀门的取样阀配合取样的变压器绝缘油密封取样装置。The technical problem to be solved by the present invention is to provide a transformer insulating oil sealing sampling device with fine structure and good sealing effect, which can cooperate with sampling valves of various shapes of valves for sampling.
为了解决以上所述技术问题，本发明所述变压器绝缘油密封取样装置，包括扭力棒、密封扭力杆、支撑体、松紧头、转换接头和取样接头；In order to solve the above-mentioned technical problems, the transformer insulating oil sealing sampling device of the present invention includes a torsion bar, a sealing torsion bar, a support body, an elastic head, a conversion joint and a sampling joint;
所述密封扭力杆的中段设置有水平贯通杆体的水平槽，所述密封扭力杆的前段内部设置有与所述水平槽连通的油道，所述油道的外段为正六边形横截面的粗油道、里段为圆形横截面的细油道，细油道与所述水平槽连通，所述粗油道与细油道连接处设计成C0.8的密封倒角；所述密封扭力杆的上端部与所述扭力棒垂直连接；The middle section of the sealed torsion bar is provided with a horizontal groove that runs through the rod body horizontally, and the front section of the sealed torsion bar is provided with an oil passage that communicates with the horizontal groove. The outer section of the oil passage is a thick oil passage with a regular hexagonal cross section, and the inner section is a thin oil passage with a circular cross section.
所述支撑体的内部为中空的圆柱形轨道，支撑体的中段体壁上设置有与所述水平槽对应的取样孔，所述取样接头与取样孔螺纹连接进行取样；所述支撑体的上端部设置有压环，压环外套接有压头，压头下端部设置有软质阻力垫，所述密封扭力杆从支撑体的上端部插入轨道并可在轨道内自由转动，所述压环与压头螺纹连接，旋紧压头使支撑体与密封扭力杆紧密固定；所述支撑体的下端头外设置有螺纹；The inside of the support body is a hollow cylindrical track, and the middle body wall of the support body is provided with a sampling hole corresponding to the horizontal groove. The sampling joint is threadedly connected to the sampling hole for sampling; The rod is tightly fixed; the lower end of the support body is provided with threads;
所述松紧头包括相互连通的油道端和阀门端，油道端的外形为与所述粗油道相配合的正六边形柱体，油道端的端头处设计为C1.0的外倒角，与油道内的密封倒角配合；The elastic head includes an oil passage end and a valve end connected to each other, the shape of the oil passage end is a regular hexagonal cylinder matched with the thick oil passage, and the end of the oil passage end is designed as an outer chamfer of C1.0 to match the sealing chamfer in the oil passage;
所述转换接头的侧壁设置有第二取样孔，第二取样孔与取样接头的里端螺纹连接；The side wall of the conversion joint is provided with a second sampling hole, and the second sampling hole is threadedly connected with the inner end of the sampling joint;
所述松紧头的油道端从密封扭力杆的下端口插入粗油道内，所述转换接头包裹住松紧头套在支撑体的下端头部并与支撑体螺纹连接；所述阀门端与取样阀连接。The oil passage end of the elastic head is inserted into the rough oil passage from the lower port of the sealed torsion bar, the conversion joint wraps the elastic head and covers the lower end of the support body and is threadedly connected with the support body; the valve end is connected with the sampling valve.
进一步，本发明所述密封扭力杆的水平槽的上、下设置有圆环形的密封槽，在密封槽处设置有密封圈。Further, circular sealing grooves are arranged above and below the horizontal groove of the sealing torsion bar in the present invention, and sealing rings are arranged at the sealing grooves.
进一步，本发明所述密封扭力杆的上段设置有至少一个上限位孔，密封扭力杆的下端、粗油道所属段设置有与粗油道连通的下限位孔，所述上限位孔和下限位孔内设置有限位螺杆。Further, the upper section of the sealed torsion bar of the present invention is provided with at least one upper limit hole, the lower end of the sealed torsion bar and the section of the coarse oil passage are provided with a lower limit hole connected to the coarse oil passage, and a limit screw is arranged in the upper limit hole and the lower limit hole.
进一步，本发明所述松紧头的阀门端的内部为正六边形槽，油道端的内部为圆柱形管，所述油道端与阀门端的内部连接处设计成C2.0的内倒角，所述阀门端与阀门为六边形的取样阀连接进行取样。Further, the inside of the valve end of the elastic head according to the present invention is a regular hexagonal groove, the inside of the oil passage end is a cylindrical pipe, and the internal connection between the oil passage end and the valve end is designed as a C2.0 inner chamfer, and the valve end is connected to a hexagonal sampling valve for sampling.
进一步，本发明所述松紧头的阀门端的内部为正方形槽，油道端的内部为正方形管，所述油道端与阀门端的内部连接处设计成C2.0的内倒角，所述阀门端与阀门为正方形的取样阀连接进行取样。Further, the inside of the valve end of the elastic head according to the present invention is a square groove, and the inside of the oil passage end is a square tube. The internal connection between the oil passage end and the valve end is designed as a C2.0 inner chamfer, and the valve end is connected to a sampling valve with a square valve for sampling.
进一步，本发明所述松紧头的阀门端为长方形，所述阀门端与阀门为一字形的取样阀配合，通过第二取样孔进行取样。Further, the valve end of the elastic head of the present invention is rectangular, and the valve end cooperates with a sampling valve with an inline valve, and samples are taken through the second sampling hole.
本发明的主要密封部件，如密封性扭力杆、松紧头等连接处的倒角设计，密封性能与作用力大小成正比关系，取样过程中确保良好的密封性能；压环、压头和软质阻力垫通过螺纹连接方式固定在支撑体上端部，对密封扭力杆有阻力作用，即在拧紧压头过程中，压头挤压压环，压环挤压软质阻力垫，软质阻力垫受力后向两边扩张，进而抱住密封扭力杆，阻碍密封扭力杆自由运动；密封槽与密封圈的配合，进一步增强了密封效果，不但对液体形式的油密封效果好，即使气体也被完全隔绝在外，最大限度保证所取油样的洁净，用于实验分析后，实验数据能真正反映油浸式电气设备的健康状况。The main sealing parts of the present invention, such as the chamfering design of the joints of the sealing torsion rod and the elastic head, etc., the sealing performance is proportional to the force, and good sealing performance is ensured during the sampling process; the pressure ring, the pressure head and the soft resistance pad are fixed on the upper end of the support body through threaded connection, which has a resistance effect on the sealing torsion rod, that is, in the process of tightening the pressure head, the pressure head squeezes the pressure ring, and the pressure ring squeezes the soft resistance pad. The torsion bar moves freely; the cooperation of the sealing groove and the sealing ring further enhances the sealing effect, not only the sealing effect is good for liquid oil, but also the gas is completely isolated, ensuring the cleanliness of the oil sample taken to the maximum extent. After being used for experimental analysis, the experimental data can truly reflect the health status of oil-immersed electrical equipment.
本发明的有益效果：本发明结构细致精良、装置轻巧，手感体验好、适合于单人操作，装置内部采用全管道—倒角输油方式，各部件连接紧密、对油、气均达高度密封效果，外界污染源少，确保所取油样的洁净，实验数据能能真正反映油浸式电气设备的健康状况；装置自身可以很好地保护取样阀，有效防止取样阀阀门被拧掉或损坏；对于取样过程中存在漏油的变压器取样阀，可以及时将漏出的绝缘油回收到回收容器内，减少对环境的污染；松紧头的设计，能与最常见的正六边形、正方形和一字形等多种不同形状阀门的取样阀配合进行取样，做到一款多用，适用性大大增强，减少装置配备。Beneficial effects of the present invention: the present invention has fine and fine structure, light and handy device, good hand experience, and is suitable for single-person operation. The device adopts a full-pipe-chamfer oil delivery method inside the device, and the parts are tightly connected to achieve a high sealing effect on oil and gas. There are few external pollution sources, ensuring the cleanliness of the oil sample taken, and the experimental data can truly reflect the health of the oil-immersed electrical equipment; The leaked insulating oil is recovered into the recovery container to reduce environmental pollution; the design of the elastic head can be used for sampling with the most common sampling valves of various shapes such as regular hexagonal, square and inline valves, so as to achieve a multi-purpose, greatly enhanced applicability and reduced device equipment.
附图说明Description of drawings
图1为本发明所述密封性扭力杆剖视示意图；Fig. 1 is a schematic cross-sectional view of a sealed torsion bar according to the present invention;
图2为本发明所述支撑体剖视示意图；Fig. 2 is a schematic cross-sectional view of the support body of the present invention;
图3为实施例一所述松紧头（正六边形）剖视示意图；Fig. 3 is a schematic cross-sectional view of the elastic head (regular hexagon) described in Embodiment 1;
图4为实施例一所述松紧头（正六边形）的仰视图；Fig. 4 is the bottom view of the elastic head (regular hexagon) described in Embodiment 1;
图5为实施例一所述松紧头（正六边形）的俯视图；Fig. 5 is a top view of the elastic head (regular hexagon) described in Embodiment 1;
图6为实施例一正六边形松紧头与六边形阀门取样阀配合示意图；Fig. 6 is a schematic diagram of cooperation between a regular hexagonal elastic head and a hexagonal valve sampling valve in Embodiment 1;
图7为实施例二正方形松紧头与正方形阀门取样阀配合示意图；Fig. 7 is a schematic diagram of cooperation between a square elastic head and a square valve sampling valve in Embodiment 2;
图8为实施例三一字形松紧头与一字形阀门取样阀配合示意图；Fig. 8 is a schematic diagram of cooperation between the inline elastic head and the inline valve sampling valve in embodiment 3;
图9为本发明的结构示意图（非工作状态）；Fig. 9 is a schematic structural diagram of the present invention (non-working state);
图10为本发明工作状态下的结构示意图（取样前/后）；Fig. 10 is a structural schematic diagram (before/after sampling) under the working state of the present invention;
图11为本发明工作状态下剖视示意图（取样中）。Fig. 11 is a schematic cross-sectional view of the present invention in working state (during sampling).
上述图中： 1-扭力棒；2-密封扭力杆；21-水平槽；22-油道；23-密封槽；24-密封圈；25-上限位孔；26-下限位孔；27-限位螺杆；221-粗油道；222-细油道；223-密封倒角；3-支撑体；31-轨道；32-取样孔； 33-压环；34-压头；35-软质阻力垫；4-松紧头；41-油道端；42-阀门端；43-外倒角；44-内倒角；5-转换接头；51-第二取样孔；6-取样接头；7-取样阀；71-取样阀阀门；71-取样阀底座。In the above figure: 1-torsion bar; 2-seal torsion bar; 21-horizontal groove; 22-oil channel; 23-seal groove; Soft resistance pad; 4-elastic head; 41-oil passage end; 42-valve end; 43-outer chamfer; 44-inner chamfer; 5-transition joint; 51-second sampling hole; 6-sampling joint;
具体实施方式Detailed ways
下面结合附图和实施例对本发明作进一步详细说明。The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.
本发明所述变压器绝缘油密封取样装置，包括扭力棒1、密封扭力杆2、支撑体3、松紧头4、转换接头5和取样接头6；The transformer insulating oil sealing sampling device of the present invention includes a torsion bar 1, a sealing torsion bar 2, a support body 3, an elastic head 4, a conversion joint 5 and a sampling joint 6;
所述密封扭力杆2的中段设置有水平贯通杆体的水平槽21，所述密封扭力杆2的前段内部设置有与所述水平槽21连通的油道22，所述油道22的外段为正六边形横截面的粗油道221、里段为圆形横截面的细油道222，细油道222与所述水平槽21连通，所述粗油道221与细油道222连接处设计成C0.8的密封倒角223；所述密封扭力杆2的上端部与所述扭力棒1垂直连接；The middle section of the sealed torsion bar 2 is provided with a horizontal groove 21 that runs through the rod body horizontally. The inside of the front section of the sealed torsion bar 2 is provided with an oil passage 22 that communicates with the horizontal groove 21. The outer section of the oil passage 22 is a thick oil passage 221 with a regular hexagonal cross section, and the inner section is a thin oil passage 222 with a circular cross section. The thin oil passage 222 communicates with the horizontal groove 21. Sealing chamfer 223; the upper end of the sealing torsion bar 2 is vertically connected to the torsion bar 1;
所述支撑体3的内部为中空的圆柱形轨道31，支撑体3的中段体壁上设置有与所述水平槽21对应的取样孔32，所述取样接头6与取样孔32螺纹连接进行取样；所述支撑体3的上端部设置有压环33，压环33外套接有压头34，压头34下端部设置有软质阻力垫35，所述密封扭力杆2从支撑体3的上端部插入轨道31并可在轨道31内自由转动，所述压环33与压头34螺纹连接，旋紧压头34使支撑体3与密封扭力杆2紧密固定；所述支撑体3的下端头外设置有螺纹；The inside of the support body 3 is a hollow cylindrical track 31, the middle body wall of the support body 3 is provided with a sampling hole 32 corresponding to the horizontal groove 21, and the sampling joint 6 is threadedly connected with the sampling hole 32 for sampling; Rotating freely in the track 31, the pressure ring 33 is threadedly connected with the pressure head 34, and the pressure head 34 is screwed tightly so that the support body 3 and the sealing torsion bar 2 are tightly fixed; the lower end of the support body 3 is provided with threads;
所述松紧头4包括相互连通的油道端41和阀门端42，油道端41的外形为与所述粗油道221相配合的正六边形柱体，油道端41的端头处设计为C1.0的外倒角43，与油道22内的密封倒角223配合；The elastic head 4 includes an oil passage end 41 and a valve end 42 which communicate with each other. The shape of the oil passage end 41 is a regular hexagonal cylinder matched with the thick oil passage 221. The end of the oil passage end 41 is designed as an outer chamfer 43 of C1.0, which is matched with the sealing chamfer 223 in the oil passage 22;
所述转换接头5的侧壁设置有第二取样孔51，第二取样孔51与取样接头6的里端螺纹连接；The side wall of the conversion joint 5 is provided with a second sampling hole 51, and the second sampling hole 51 is threadedly connected with the inner end of the sampling joint 6;
所述松紧头4的油道端41从密封扭力杆2的下端口插入粗油道221内，所述转换接头5包裹住松紧头4套在支撑体3的下端头部并与支撑体3螺纹连接；所述阀门端42与取样阀7连接。The oil passage end 41 of the elastic head 4 is inserted into the coarse oil passage 221 from the lower port of the sealed torsion rod 2, the adapter 5 wraps the elastic head 4 and is set on the lower end of the support body 3 and is threadedly connected with the support body 3; the valve end 42 is connected with the sampling valve 7.
进一步，本发明所述密封扭力杆2的水平槽21的上、下设置有圆环形的密封槽23，在密封槽23处设置有密封圈24。Further, an annular sealing groove 23 is provided above and below the horizontal groove 21 of the sealing torsion bar 2 according to the present invention, and a sealing ring 24 is provided at the sealing groove 23 .
进一步，本发明所述密封扭力杆2的上段设置有至少一个上限位孔25，密封扭力杆2的下端、粗油道所属段设置有与粗油道连通的下限位孔26，所述上限位孔25和下限位孔26内设置有限位螺杆27。Further, the upper section of the sealed torsion bar 2 of the present invention is provided with at least one upper limit hole 25, the lower end of the sealed torsion bar 2 and the section of the rough oil passage are provided with a lower limit hole 26 communicating with the rough oil passage, and a limit screw 27 is arranged in the upper limit hole 25 and the lower limit hole 26.
进一步，本发明所述松紧头4的阀门端42的内部为正六边形槽，油道端41的内部为圆柱形管，所述油道端41与阀门端42的内部连接处设计成C2.0的内倒角44，所述阀门端42与阀门为六边形的取样阀7连接进行取样。Further, the inside of the valve end 42 of the elastic head 4 of the present invention is a regular hexagonal groove, the inside of the oil passage end 41 is a cylindrical pipe, and the internal connection between the oil passage end 41 and the valve end 42 is designed as a C2.
进一步，本发明所述松紧头4的阀门端42的内部为正方形槽，油道端41的内部为正方形管，所述油道端41与阀门端42的内部连接处设计成C2.0的内倒角44，所述阀门端42与阀门为正方形的取样阀7连接进行取样。Further, the inside of the valve end 42 of the elastic head 4 of the present invention is a square groove, the inside of the oil passage end 41 is a square tube, and the internal connection between the oil passage end 41 and the valve end 42 is designed as an inner chamfer 44 of C2.0, and the valve end 42 is connected to the sampling valve 7 with a square valve for sampling.
进一步，本发明所述松紧头4的阀门端42为长方形，所述阀门端42与阀门为一字形的取样阀7配合，通过第二取样孔51进行取样。Further, the valve end 42 of the elastic head 4 of the present invention is rectangular, and the valve end 42 cooperates with the sampling valve 7 with an inline valve, and samples are taken through the second sampling hole 51 .
实施例一：本实施例介绍松紧头与取样阀的阀门为六边形的取样阀连接进行取样的情况。Embodiment 1: This embodiment introduces the situation that the elastic head is connected to the sampling valve with a hexagonal valve for sampling.
所述密封扭力杆2的结构如图1所示，前段内部设计一个长为15mm、边长为3.5mm的正六边形槽即粗油道221和长为12.2mm、半径为2mm的圆柱形槽即细油道222，在细油道和粗油道的连接处设计内倒角C0.8即密封倒角223，内嵌的正六边形的粗油道可以让松紧头4的油道端41插入其中；密封倒角223（C0.8）与松紧头油道端41的外倒角43（C1.0）的角度相同，但深度不同(深度是指各自倒角水平长度)，在支撑体3顶端软质阻力垫35的阻力和取样阀7的阀门71的反向推力的作用下，密封扭力杆与松紧头之间密封效果随作用力的增加逐渐提高。在距密封扭力杆2顶部14mm、26mm处分别设置M3*5第一、第二两个上限位孔25，距密封扭力杆2顶部92.3mm处设置一个M3*5的下限位孔26，上、下限位孔与M3*8的限位螺杆27配合，密封扭力杆2和取样阀的阀门71可以在有效行程内自由移动；密封扭力杆的下限位孔26与限位螺杆27的配合，粗油道221与松紧头的油道端41套接时，限位螺杆27螺纹推进与油道端外壁接触，可以紧固松紧头4，防止整个取样过程中松紧头滑脱；距密封扭力杆2顶部64.4mm处开设一个内径为8mm、完全贯穿水平方向的圆柱形水平槽21，该水平槽21与密封扭力杆前段内部的油道连通，所述水平槽的上、下3mm处、密封扭力杆2的外壁上分别开设一个宽1.2mm、深1mm的圆环形密封槽23，内置密封圈24，在密封圈的配合下，油道内的绝缘油难以溢出。The structure of the sealed torsion bar 2 is shown in Figure 1. A regular hexagonal groove with a length of 15 mm and a side length of 3.5 mm is designed in the front section, that is, a thick oil passage 221, and a cylindrical groove with a length of 12.2 mm and a radius of 2 mm, that is, a thin oil passage 222. An inner chamfer C0.8 is designed at the junction of the thin oil passage and the thick oil passage, which is a sealing chamfer 223. The embedded regular hexagonal thick oil passage can allow the oil passage end 41 of the elastic head 4 to be inserted therein; The sealing chamfer 223 (C0.8) has the same angle as the outer chamfer 43 (C1.0) of the oil passage end 41 of the elastic head, but the depth is different (the depth refers to the horizontal length of each chamfer). Under the resistance of the soft resistance pad 35 at the top of the support body 3 and the reverse thrust of the valve 71 of the sampling valve 7, the sealing effect between the sealing torsion bar and the elastic head gradually improves with the increase of the force. The first and second upper limit holes 25 of M3*5 are respectively set at 14mm and 26mm from the top of the sealed torsion bar 2, and a lower limit hole 26 of M3*5 is set at 92.3mm from the top of the sealed torsion bar 2. The upper and lower limit holes cooperate with the limit screw 27 of M3*8, and the valve 71 of the sealed torsion bar 2 and the sampling valve can move freely within the effective stroke; When the oil passage 221 is socketed with the oil passage end 41 of the elastic head, the limit screw 27 thread advances and contacts the outer wall of the oil passage end, which can tighten the elastic head 4 and prevent the elastic head from slipping off during the entire sampling process; a cylindrical horizontal groove 21 with an inner diameter of 8 mm and completely penetrating the horizontal direction is opened at 64.4 mm from the top of the sealing torsion bar 2. This horizontal groove 21 communicates with the oil passage inside the front section of the sealing torsion bar. A ring-shaped sealing groove 23 with a width of 1.2 mm and a depth of 1 mm is provided on the wall, and a built-in sealing ring 24 is provided. With the cooperation of the sealing ring, the insulating oil in the oil passage is difficult to overflow.
所述支撑体3如图2所示，支撑体内部的圆柱形轨道31长45.5mm、半径7mm，轨道31为密封扭力杆2提供运动轨道；压头8与压环9所在段长10mm、半径8mm，较大的半径为软质阻力垫10的扩张提供一定的空间(软质阻力垫在挤压过程中会向四周扩张)，软质阻力垫10与压环9、压头8配合对密封扭力杆2产生阻力作用。在距支撑体上端28mm处设计一个M4.62*0.8、有效长度为8mm的取样孔32，其可以与取样接头6配合。支撑体3的下端头外设计M28*1.5、有效长度为10mm的外螺纹，与转换接头5配合，与取样阀7密封连接、取样。Described support body 3 is shown in Figure 2, and the cylindrical orbit 31 length 45.5mm inside the support body, radius 7mm, orbit 31 provides motion track for sealing torsion bar 2; A sampling hole 32 of M4.62*0.8 with an effective length of 8 mm is designed at a distance of 28 mm from the upper end of the support body, which can be matched with the sampling joint 6 . The lower end of the support body 3 is externally designed with an external thread of M28*1.5 and an effective length of 10mm, which cooperates with the adapter 5 and is sealed and connected with the sampling valve 7 for sampling.
本实施例所述松紧头4为六边形松紧头，如图3、图4、图5所示，松紧头4由油道端41和阀门端42两部分组成，阀门端42的内部为正六边形槽，即长15mm、边长6.93mm的正六边形槽；油道端41的外形为长为14mm、边长为3.5mm的正六边形柱，油道端的内部是长45.5mm、半径7mm的圆柱形槽，末端设计为C1.0的外倒角43，油道端41与密封扭力杆2内的密封倒角223（C0.8）配合时，在软质阻力垫的阻力和取样阀的推力作用下，密封性越来越好；油道端41与阀门端42的内部连接处设计成C2.0的内倒角44，所述阀门端42与取样阀7的六边形的阀门71连接配合时具有良好的密封性。The pine head 4 is hexagonal pine head, as described in this example. As shown in Figure 3, Figure 4, and Figure 5, the loose head 4 is composed of two parts: the oil duct 41 and the valve end 42. The internal 62 of the valve end is a positive hexagonal groove, that is, a positive hexagonal groove with a length of 15mm and a length of 6.93mm. The inner column, the inside of the oil channel is a cylindrical groove with a length of 45.5mm and a radius of 7mm. When the end is designed as a C1.0 outer downturn 43, and the oil channel is matched with the sealing chamflow angle 223 (C0.8) in the sealing torque bar 2, the sealing properties are getting better and better under the resistance of the soft resistance pad and the thrust of the sample valve; The connection is designed to the inner chamflow 44 of the C2.0. The valve end 42 is good with the valve 71 connection of the sample valve 7 with a good sealing.
本发明所述取样装置的取样过程，参见图10、图11。取样前，将所述取样装置通过转换接头5拧在取样阀7的底座72上，拧紧过程中正反旋转扭力棒，使取样阀阀门空间最大部分完全进入松紧头4的阀门端42内部，取样接头6一端与支撑体3上的取样孔32通过螺纹密封性连接，另一端与用于取样的软管或双头针连接；取样中，利用人力逆时针旋转扭力棒1，带动密封扭力杆2向上移动，在软质阻力垫35的阻力和取样阀阀门72的推力作用下，整个装置内部密封效果会逐渐增加。松紧头与正六边形阀门取样阀配合，上端的限位螺杆27安装在第二个上限位孔25处,逆时针旋转约2圈，变压器绝缘油即从取样阀门72流出，经松紧头4内油道端、密封扭力杆2内的油道22、密封扭力杆2内水平槽21和取样接头6，流入干净的软管或双头针，再流入取样容器，完成取样。取样后，拧松压头34，释放软质阻力垫35的阻力，施加推力于密封扭力杆2顶端，顺时针旋转扭力棒1；在推力和扭力棒1的配合下将取样阀阀门72拧紧；拆下变压器绝缘油密封取样装置，用回收容器将装置和软管内残油和漏油回收。Refer to Fig. 10 and Fig. 11 for the sampling process of the sampling device of the present invention. Before sampling, the sampling device is screwed on the base 72 of the sampling valve 7 through the conversion joint 5. During the tightening process, the torsion bar is rotated forward and reverse, so that the largest part of the valve space of the sampling valve completely enters the valve end 42 of the elastic head 4. One end of the sampling joint 6 is connected to the sampling hole 32 on the support body 3 in a thread-tight manner, and the other end is connected to the hose or double-ended needle used for sampling; Under the resistance of the resistance pad 35 and the thrust of the sampling valve valve 72, the internal sealing effect of the whole device will gradually increase. The elastic head cooperates with the sampling valve of the regular hexagonal valve. The limit screw 27 at the upper end is installed at the second upper limit hole 25, and rotates counterclockwise for about 2 turns. The transformer insulating oil flows out from the sampling valve 72, passes through the inner oil passage end of the elastic head 4, the oil passage 22 in the sealing torsion bar 2, the horizontal groove 21 in the sealing torsion bar 2, and the sampling joint 6, and flows into a clean hose or double-ended needle, and then flows into the sampling container to complete the sampling. After sampling, unscrew the pressure head 34, release the resistance of the soft resistance pad 35, apply a thrust to the top of the sealing torsion bar 2, and rotate the torsion bar 1 clockwise; under the cooperation of the thrust and the torsion bar 1, tighten the sampling valve valve 72; remove the transformer insulating oil seal sampling device, and use the recovery container to recover the residual oil and leaked oil in the device and the hose.
实施例二：本实施例介绍松紧头与取样阀的阀门为正方形的取样阀连接进行取样的情况。本实施例所述松紧头4的阀门端42的内部为正方形槽，所述油道端41与阀门端42的内部连接处设计成C2.0的内倒角44，所述阀门端42与阀门为正方形的取样阀7连接进行取样；其余同实施例一。Embodiment 2: This embodiment introduces the situation that the elastic head is connected to the sampling valve with a square sampling valve for sampling. The inside of the valve end 42 of the elastic head 4 described in this embodiment is a square groove, and the internal connection between the oil passage end 41 and the valve end 42 is designed as a C2.
实施例三：本实施例介绍松紧头与取样阀的阀门为一字形的取样阀配合取样的情况。Embodiment 3: This embodiment introduces the situation that the elastic head and the sampling valve whose valve is in-line are combined for sampling.
本实施例所述松紧头4的阀门端42为实体的类似螺丝刀的长方形，将所述取样装置通过转换接头5拧在取样阀7的底座72上，所述阀门端42插入一字形取样阀7的阀门71，取样接头6一端与转换接头5上的第二取样孔51通过螺纹密封性连接，另一端与用于取样的软管或双头针连接，松紧头与一字形阀门取样阀配合，上端的限位螺杆27安装在第一个上限位孔处，逆时针旋转扭力杆8圈左右，阀门端开启阀门，变压器绝缘油即从取样阀门72流出，通过第二取样孔51进行取样，绝缘油经清洗干净的转换接头5和取样接头6，流入干净的软管或双头针，再流入取样容器完成取样；其余同实施例一。The valve end 42 of the elastic head 4 described in this embodiment is a solid rectangle similar to a screwdriver. The sampling device is screwed on the base 72 of the sampling valve 7 through the adapter 5, and the valve end 42 is inserted into the valve 71 of the inline sampling valve 7. One end of the sampling adapter 6 is connected to the second sampling hole 51 on the adapter 5 in a thread-tight manner, and the other end is connected to a hose or a double-ended needle for sampling. The elastic head cooperates with the inline valve sampling valve. Install it at the first upper limit hole, rotate the torque rod counterclockwise for about 8 turns, open the valve at the valve end, and the transformer insulating oil will flow out from the sampling valve 72, and take a sample through the second sampling hole 51. The insulating oil will flow through the cleaned conversion joint 5 and sampling joint 6 into a clean hose or double-ended needle, and then flow into the sampling container to complete the sampling; the rest are the same as in Example 1.
对于存在漏油的取样阀，漏油直接经第二取样孔51、取样接头6流入软管及回收容器；如果采用一字型松紧头的取样阀漏油，则油样和漏样一同从取样接头流入软管或双头针，再流入取样容器，不用回收漏油样，此时，转换接头内部应用变压器本体绝缘油至少冲洗三遍。For the sampling valve with oil leakage, the oil leakage directly flows into the hose and recovery container through the second sampling hole 51 and the sampling joint 6; if the sampling valve with an inline elastic head leaks oil, the oil sample and the leaked sample flow into the hose or double-ended needle from the sampling joint together, and then flow into the sampling container without recovering the oil leakage sample.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710818521.1ACN107421776B (en) | 2017-09-12 | 2017-09-12 | Transformer insulating oil seal sampling device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710818521.1ACN107421776B (en) | 2017-09-12 | 2017-09-12 | Transformer insulating oil seal sampling device |
| Publication Number | Publication Date |
|---|---|
| CN107421776A CN107421776A (en) | 2017-12-01 |
| CN107421776Btrue CN107421776B (en) | 2023-07-25 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710818521.1AActiveCN107421776B (en) | 2017-09-12 | 2017-09-12 | Transformer insulating oil seal sampling device |
| Country | Link |
|---|---|
| CN (1) | CN107421776B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008631A (en)* | 2021-04-27 | 2021-06-22 | 国家电网有限公司 | Universal sealing oil sampling device and method for transformer |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB484130A (en)* | 1936-12-10 | 1938-05-02 | Ernest Alfred Arthur Forno | Improvements in or relating to filters for liquids |
| GB702120A (en)* | 1952-08-01 | 1954-01-06 | United Africa Company Ltd | Improvements in or relating to sampling rods |
| US3465595A (en)* | 1968-03-21 | 1969-09-09 | John R Tansony | Liquid sampling device |
| CN2031847U (en)* | 1988-06-27 | 1989-02-01 | 湖南省长沙市试压泵厂 | Single-cylinder superhigh pressure hand-operated pressure-testing pump |
| US5452620A (en)* | 1994-04-19 | 1995-09-26 | Mmc International Corp. | Sampling valve |
| JP2005127848A (en)* | 2003-10-23 | 2005-05-19 | Meisei Electric Co Ltd | Cover glass transfer device of sample sealing machine |
| CN201681000U (en)* | 2010-05-26 | 2010-12-22 | 浙江远安流体设备有限公司 | Pneumatic-manual two-purpose sampling valve |
| CN202008439U (en)* | 2011-04-08 | 2011-10-12 | 杭州市电力局 | Sampling device and oil sampling port connecting device |
| CN203287214U (en)* | 2013-05-27 | 2013-11-13 | 中国石油化工股份有限公司 | Anti-congelation sampling valve |
| CN203594796U (en)* | 2013-12-05 | 2014-05-14 | 吉林光大电力设备股份有限公司 | High-temperature high-pressure valve capable of being sealed and adjusted dually |
| EP2778653A1 (en)* | 2011-10-19 | 2014-09-17 | Wuhan Cell Marker & Machine Tech Co., Ltd. | Device for staining suspended cells |
| CN106382375A (en)* | 2016-11-22 | 2017-02-08 | 上海市特种设备监督检验技术研究院 | Heat-insulating jacket valve for online sampling of fluid pipeline medium |
| CN206036248U (en)* | 2016-08-29 | 2017-03-22 | 温州天悦流体设备科技有限公司 | Sampling valve |
| WO2017068595A1 (en)* | 2015-10-23 | 2017-04-27 | Forbes Marshall Private Limited | Sample pressure reducing valve |
| CN107063751A (en)* | 2017-04-05 | 2017-08-18 | 国网浙江台州市路桥区供电公司 | A kind of head space formula vacuum draws oil sample method |
| CN207181086U (en)* | 2017-09-12 | 2018-04-03 | 云南电网有限责任公司玉溪供电局 | Transformer insulation oil sealed sampling device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8142722B2 (en)* | 2006-08-08 | 2012-03-27 | Hach Company | Test element and tester for analyzing solutions |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB484130A (en)* | 1936-12-10 | 1938-05-02 | Ernest Alfred Arthur Forno | Improvements in or relating to filters for liquids |
| GB702120A (en)* | 1952-08-01 | 1954-01-06 | United Africa Company Ltd | Improvements in or relating to sampling rods |
| US3465595A (en)* | 1968-03-21 | 1969-09-09 | John R Tansony | Liquid sampling device |
| CN2031847U (en)* | 1988-06-27 | 1989-02-01 | 湖南省长沙市试压泵厂 | Single-cylinder superhigh pressure hand-operated pressure-testing pump |
| US5452620A (en)* | 1994-04-19 | 1995-09-26 | Mmc International Corp. | Sampling valve |
| JP2005127848A (en)* | 2003-10-23 | 2005-05-19 | Meisei Electric Co Ltd | Cover glass transfer device of sample sealing machine |
| CN201681000U (en)* | 2010-05-26 | 2010-12-22 | 浙江远安流体设备有限公司 | Pneumatic-manual two-purpose sampling valve |
| CN202008439U (en)* | 2011-04-08 | 2011-10-12 | 杭州市电力局 | Sampling device and oil sampling port connecting device |
| EP2778653A1 (en)* | 2011-10-19 | 2014-09-17 | Wuhan Cell Marker & Machine Tech Co., Ltd. | Device for staining suspended cells |
| CN203287214U (en)* | 2013-05-27 | 2013-11-13 | 中国石油化工股份有限公司 | Anti-congelation sampling valve |
| CN203594796U (en)* | 2013-12-05 | 2014-05-14 | 吉林光大电力设备股份有限公司 | High-temperature high-pressure valve capable of being sealed and adjusted dually |
| WO2017068595A1 (en)* | 2015-10-23 | 2017-04-27 | Forbes Marshall Private Limited | Sample pressure reducing valve |
| CN206036248U (en)* | 2016-08-29 | 2017-03-22 | 温州天悦流体设备科技有限公司 | Sampling valve |
| CN106382375A (en)* | 2016-11-22 | 2017-02-08 | 上海市特种设备监督检验技术研究院 | Heat-insulating jacket valve for online sampling of fluid pipeline medium |
| CN107063751A (en)* | 2017-04-05 | 2017-08-18 | 国网浙江台州市路桥区供电公司 | A kind of head space formula vacuum draws oil sample method |
| CN207181086U (en)* | 2017-09-12 | 2018-04-03 | 云南电网有限责任公司玉溪供电局 | Transformer insulation oil sealed sampling device |
| Title |
|---|
| 电气设备绝缘油全密封取样装置设计及应用;杨震洋，黄汉贤，熊婷婷;《机电信息》;20141231(第36期);全文* |
| Publication number | Publication date |
|---|---|
| CN107421776A (en) | 2017-12-01 |
| Publication | Publication Date | Title |
|---|---|---|
| CN201555791U (en) | A multi-layer flat model core holder | |
| CN107421776B (en) | Transformer insulating oil seal sampling device | |
| CN207181086U (en) | Transformer insulation oil sealed sampling device | |
| CN105571893B (en) | A kind of enclosed sampling device with quick coupling | |
| CN106813955B (en) | Canned sample gas sampling device in petroleum and natural gas exploration laboratory | |
| CN206930634U (en) | A kind of sealing of capillary chromatographic column and fixing device | |
| CN103072750A (en) | Waterproof sealing device for cement hydration heat test | |
| CN203131315U (en) | Tubing sealing plug convenient to install | |
| CN203350075U (en) | Quick sampling device of transformer oil | |
| CN203224381U (en) | Oil sampling device of on-load tap changer oil tank | |
| CN109458515B (en) | Sampling pipeline airtight plugging device and method | |
| CN206292220U (en) | A kind of sample cell for gas absorption instrument | |
| CN205025427U (en) | Piston type anti-freezing sampling valve | |
| CN205155239U (en) | Sampling valve | |
| CN103616463A (en) | Full-sealed chromatography sampling device of insulating oil | |
| CN105445060A (en) | Automatic vacuum oil sample taking container for electric high-voltage oil-filled transformer | |
| CN205678278U (en) | A kind of oil outlet mechanism of power equipment oil pocket | |
| CN218762054U (en) | Novel sampling valve | |
| CN204784949U (en) | Be applied to gland of gate valve | |
| CN202992191U (en) | Sampling device of transformer | |
| CN103047423B (en) | Transformer sampler | |
| CN205919035U (en) | Oil tank oil gallery sealing mechanism | |
| CN204177594U (en) | Pressure testing device | |
| CN211123132U (en) | Totally enclosed insulating oil breakdown voltage test oil cup | |
| CN203286031U (en) | Ball valve for seawater |
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |