技术领域technical field
本发明属于空调设备技术领域，具体涉及一种机械制冷结合自然冷却方式的数据中心空调系统。The invention belongs to the technical field of air conditioning equipment, and in particular relates to a data center air conditioning system combining mechanical refrigeration with natural cooling.
背景技术Background technique
随着互联网+、大数据、云计算及人工智能技术的快速发展，以信息技术为代表的新一轮科技和产业革命正在萌发，为经济社会发展注入了强劲动力。随着建设网络强国、数字中国、智慧社会以及互联网、大数据、人工智能和实体经济的深度融合，数据的产生、存储、计算技术推陈出新，必将实现海量数据之间和设备之间的互联互通。数据中心是承载数据的基础物理单元，装载大量的IT设备，其能耗密度是传统建筑的几倍甚至数十倍。我国早期建设、运营的数据中心能源效率与发达国家相比，能效指标还有较大的提升空间。数据中心的热负荷以显热为主，由于单位面积的散热量较大，需要全年不间断冷却，而且冷却系统与传统建筑以人的热舒适、节能为目标的空调系统模式有着较大的区别。面对数据中心高散热量的现状以及全年冷却的需求，研究如何提高设备的效率，尽量间接或者直接地利用自然冷源，延长自然冷源的使用时间，为数据中心领域的安全节能运行提供更加绿色低碳的技术方案。With the rapid development of Internet+, big data, cloud computing and artificial intelligence technologies, a new round of technological and industrial revolution represented by information technology is emerging, injecting strong impetus into economic and social development. With the construction of a networked country, a digital China, a smart society, and the deep integration of the Internet, big data, artificial intelligence and the real economy, new data generation, storage, and computing technologies will surely achieve interconnection between massive data and between devices. . A data center is the basic physical unit that carries data and is loaded with a large number of IT equipment. Its energy density is several times or even dozens of times that of traditional buildings. Compared with developed countries, the energy efficiency of data centers constructed and operated in my country in the early stage still has a large room for improvement. The heat load of the data center is mainly sensible heat. Due to the large amount of heat dissipation per unit area, uninterrupted cooling is required throughout the year, and the cooling system is quite different from the traditional building's air-conditioning system that aims at people's thermal comfort and energy saving. the difference. Faced with the current situation of high heat dissipation in the data center and the need for cooling throughout the year, study how to improve the efficiency of the equipment, try to use the natural cooling source indirectly or directly, prolong the use time of the natural cooling source, and provide safe and energy-saving operation in the data center field. More green and low-carbon technical solutions.
发明内容SUMMARY OF THE INVENTION
本发明的目的是提供一种机械制冷结合自然冷却方式的数据中心空调系统，能够依据气象条件切换运行多种制冷模式，在保障空调系统安全可靠运行的同时，大大降低了能耗。The purpose of the present invention is to provide a data center air conditioning system with mechanical refrigeration combined with natural cooling, which can switch and operate multiple refrigeration modes according to weather conditions, and greatly reduces energy consumption while ensuring the safe and reliable operation of the air conditioning system.
本发明所采用的技术方案是，机械制冷结合自然冷却方式的数据中心空调系统，包括有供回水系统、直接蒸发冷却机组以及在直接蒸发冷却机组左右两侧呈对称设置的立管式板管型间接蒸发冷却机组，直接蒸发冷却机组的左右两侧呈对称设置有两个第一进风口，两个立管式板管型间接蒸发冷却机组靠近直接蒸发冷却机组的一侧均设置有一次风出口，两个第一进风口分别与其对应一侧的立管式板管型间接蒸发冷却机组的一次风出口连通；The technical solution adopted in the present invention is that the data center air-conditioning system with mechanical refrigeration combined with natural cooling includes a water supply and return system, a direct evaporative cooling unit, and a vertical tube plate tube symmetrically arranged on the left and right sides of the direct evaporative cooling unit type indirect evaporative cooling unit, two first air inlets are symmetrically arranged on the left and right sides of the direct evaporative cooling unit, and primary air is provided on the side of the two vertical tube plate-and-tube indirect evaporative cooling units close to the direct evaporative cooling unit outlet, the two first air inlets are respectively connected with the primary air outlet of the vertical tube plate-and-tube indirect evaporative cooling unit on the corresponding side;
供回水系统、直接蒸发冷却机组以及在直接蒸发冷却机组左右两侧呈对称设置的立管式板管型间接蒸发冷却机组之间通过水管网连接。The water supply and return system, the direct evaporative cooling unit and the vertical tube plate-and-tube indirect evaporative cooling units arranged symmetrically on the left and right sides of the direct evaporative cooling unit are connected by a water pipe network.
本发明的特征还在于，The present invention is also characterized in that,
供回水系统包括有依次连接的机械制冷冷水机组、室内末端、板式换热器及水源；The water supply and return system includes a mechanical refrigeration chiller connected in sequence, an indoor terminal, a plate heat exchanger and a water source;
机械制冷冷水机组分别通过水管G9与水管G10与室内末端连接，室内末端分别通过水管G11与水管G12与板式换热器连接，板式换热器分别通过水管G7与水管G8与水源连接；The mechanical refrigeration chiller is connected to the indoor end through the water pipe G9 and the water pipe G10 respectively, the indoor end is connected to the plate heat exchanger through the water pipe G11 and the water pipe G12 respectively, and the plate heat exchanger is respectively connected to the water source through the water pipe G7 and the water pipe G8;
板式换热器通过水管G1与直接蒸发冷却机组连接，板式换热器与两个立管式板管型间接蒸发冷却机组之间设置有水管G3及水管G4，水管G3的一端与板式换热器连接，水管G3的另一端分两路分别与两个立管式板管型间接蒸发冷却机组连接，水管G4的一端与板式换热器连接，水管G4的另一端分两路分别与两个立管式板管型间接蒸发冷却机组连接；The plate heat exchanger is connected to the direct evaporative cooling unit through the water pipe G1. Between the plate heat exchanger and the two vertical plate and tube indirect evaporative cooling units, there are water pipes G3 and G4. One end of the water pipe G3 is connected to the plate heat exchanger. Connection, the other end of the water pipe G3 is connected to two vertical plate-and-tube indirect evaporative cooling units in two ways, one end of the water pipe G4 is connected to the plate heat exchanger, and the other end of the water pipe G4 is connected to the two vertical Tube plate tube type indirect evaporative cooling unit connection;
机械制冷冷水机组通过水管G2与直接蒸发冷却机组连接，机械制冷冷水机组通过水管G6与水管G1连接，板式换热器通过水管G5与水管G2连接。The mechanical refrigeration chiller is connected to the direct evaporative cooling unit through the water pipe G2, the mechanical refrigeration chiller is connected to the water pipe G1 through the water pipe G6, and the plate heat exchanger is connected to the water pipe G2 through the water pipe G5.
水管G3上设置有水泵c，水管G7上设置有水泵d，水管G10上设置有水泵e，水管G12上设置有水泵f。Water pipe G3 is provided with water pump c, water pipe G7 is provided with water pump d, water pipe G10 is provided with water pump e, and water pipe G12 is provided with water pump f.
直接蒸发冷却机组包括有壳体a，壳体a内由上至下依次设置有挡水板、布水器a、填料组合单元及水箱a，布水器a通过水管G1与板式换热器连接，水箱a通过水管G2与机械制冷冷水机组连接，挡水板上方对应的壳体a顶部设置有排风口，两个第一进风口在填料组合单元下方对应的壳体a左右两侧呈对称设置。The direct evaporative cooling unit includes a shell a, and the shell a is provided with a water baffle, a water distributor a, a packing combination unit and a water tank a in order from top to bottom, and the water distributor a is connected to the plate heat exchanger through the water pipe G1 , the water tank a is connected to the mechanical refrigeration chiller through the water pipe G2, the top of the shell a above the water baffle is provided with an exhaust port, and the two first air inlets are symmetrical on the left and right sides of the shell a corresponding to the packing combination unit. set up.
水管G2上设置有水泵a。The water pipe G2 is provided with a water pump a.
排风口内设置有风机a。A fan a is arranged in the air outlet.
填料组合单元包括有设置在上层的方体填料及设置在下层的“V”型填料，两个第一进风口在“V”型填料下方对应的壳体a左右两侧呈对称设置。The packing combination unit includes a square packing arranged on the upper layer and a "V"-shaped packing arranged on the lower layer. The two first air inlets are symmetrically arranged on the left and right sides of the shell a corresponding to the "V"-shaped packing.
立管式板管型间接蒸发冷却机组包括有壳体b，壳体b靠近直接蒸发冷却机组一侧的侧壁上设置有一次风出口，一次风出口与其对应一侧的第一进风口连通，壳体b远离直接蒸发冷却机组一侧的侧壁上设置有第二进风口，壳体b内由上至下依次设置有布水器b、立管式板管型间接蒸发冷却器及水箱b，布水器b通过供水管连接，供水管上还设置有水泵b，布水器b上方对应的壳体b顶部设置有二次风出口，二次风出口内设置有风机b；The vertical tube plate-and-tube indirect evaporative cooling unit includes a casing b, and a primary air outlet is provided on the side wall of the casing b near the direct evaporative cooling unit, and the primary air outlet communicates with the first air inlet on the corresponding side, A second air inlet is arranged on the side wall of the casing b away from the direct evaporative cooling unit. The casing b is provided with a water distributor b, a vertical plate-and-tube indirect evaporative cooler and a water tank b in order from top to bottom. , the water distributor b is connected through the water supply pipe, the water supply pipe is also provided with a water pump b, the top of the shell b corresponding to the water distributor b is provided with a secondary air outlet, and the secondary air outlet is provided with a fan b;
一次风出口及第二进风口分别设置在立管式板管型间接蒸发冷却器的两侧，立管式板管型间接蒸发冷却器与一次风出口之间还设置有乙二醇盘管；The primary air outlet and the second air inlet are respectively arranged on both sides of the vertical plate-and-tube indirect evaporative cooler, and a glycol coil is also arranged between the vertical-tube plate-and-tube indirect evaporative cooler and the primary air outlet;
水管G3的一端与板式换热器连接，水管G3的另一端分两路分别与设置在直接蒸发冷却机组左右两侧的乙二醇盘管的冷媒进口连接；One end of the water pipe G3 is connected to the plate heat exchanger, and the other end of the water pipe G3 is connected to the refrigerant inlets of the glycol coils arranged on the left and right sides of the direct evaporative cooling unit in two ways;
水管G4的一端与板式换热器连接，水管G4的另一端分两路分别与设置在直接蒸发冷却机组左右两侧的乙二醇盘管的冷媒出口连接。One end of the water pipe G4 is connected to the plate heat exchanger, and the other end of the water pipe G4 is connected to the refrigerant outlets of the glycol coils arranged on the left and right sides of the direct evaporative cooling unit in two ways.
水管G1上设置有阀门i，水管G2上设置有阀门b，水管G3上设置有阀门g，水管G4上设置有阀门f，水管G5上设置有阀门h，水管G6上设置有阀门a，水管G7上设置有阀门e，水管G9上设置有阀门c，水管G10上设置有阀门d。Water pipe G1 is provided with valve i, water pipe G2 is provided with valve b, water pipe G3 is provided with valve g, water pipe G4 is provided with valve f, water pipe G5 is provided with valve h, water pipe G6 is provided with valve a, and water pipe G7 is provided with valve i. A valve e is provided on the water pipe G9, a valve c is provided on the water pipe G10, and a valve d is provided on the water pipe G10.
本发明的有益效果是：The beneficial effects of the present invention are:
(1)本发明的空调系统，因地制宜，充分利用多种自然冷源冷却方式包括：水源冷却、干空气能蒸发冷却、乙二醇自然冷却，依据气候条件，切换运行模式，延长了自然冷源的使用时间，大大减少了空调系统的电能消耗；(1) The air-conditioning system of the present invention, according to local conditions, makes full use of a variety of natural cooling source cooling methods, including: water source cooling, dry air evaporative cooling, ethylene glycol natural cooling, and switching operation modes according to climatic conditions, extending the natural cooling source. The use time of the air conditioning system greatly reduces the power consumption of the air conditioning system;
(2)本发明的心空调系统，在自然冷源不满足设计需求时，开启蒸发冷却结合机械制冷模式，立管式板管型蒸发冷却冷水机组(包括有直接蒸发冷却机组以及在直接蒸发冷却机组左右两侧呈对称设置的立管式板管型间接蒸发冷却机组)制取的冷水通入机械制冷冷水机组冷凝器，吸收冷凝器的散热，降低冷凝温度，保证空调系统正常供冷的同时，提升机械制冷冷水机组的COP值，并降低空调系统的电能消耗；(2) In the central air conditioning system of the present invention, when the natural cooling source does not meet the design requirements, the evaporative cooling combined with the mechanical refrigeration mode is turned on, and the vertical tube plate-and-tube evaporative cooling chiller (including the direct evaporative cooling unit and the direct evaporative cooling unit) is turned on. The cold water produced by the vertical tube plate and tube indirect evaporative cooling unit, which is symmetrically arranged on the left and right sides of the unit, is passed to the condenser of the mechanical refrigeration chiller to absorb the heat dissipation of the condenser, reduce the condensation temperature, and ensure the normal cooling of the air conditioning system. , improve the COP value of the mechanical refrigeration chiller, and reduce the power consumption of the air conditioning system;
(3)本发明的空调系统，立管式板管型间接蒸发冷却冷水机组中的填料分为两层布置：上层为方体填料，下层为“V”型填料，相比传统的填料布置方式将填料底层布置于立管式板管型间接蒸发冷却机组一次空气出风口上方，这样设置可有效利用下方空间，在保证填料高度的前提下有效降低机组高度，同时下方“V”型填料与空气进入的气流状态比较相符，更有助于换热的进行；(3) In the air-conditioning system of the present invention, the packing in the vertical plate-and-tube indirect evaporative cooling chiller is divided into two layers: the upper layer is a cube packing, and the lower layer is a "V"-shaped packing. Compared with the traditional packing arrangement The bottom layer of the packing is arranged above the primary air outlet of the vertical plate-and-tube indirect evaporative cooling unit. This arrangement can effectively utilize the space below and effectively reduce the height of the unit under the premise of ensuring the height of the packing. The state of the incoming air flow is more consistent, which is more conducive to the heat exchange;
(4)本发明的空调系统，立管式板管型间接蒸发冷却冷水机组使用立管式板管型间接蒸发冷却器，二次空气在管内的湿通道发生直接蒸发冷却，一次空气流进管外的干通道被等湿冷却，这种立管式板管型间接蒸发冷却器管外较宽的空气流道，不易堵塞并易于清扫；管内由于循环水的自动冲刷作用，可有效缓解管内的堵塞问题；换热器管束采用立式，可减小换热管在水平方向的占地面积；采用板管管型增强了管内均匀布水效果，同时增加了一次空气和管壁的接触面积，强化了换热效果，减小了流动阻力，降低了风机能耗；(4) In the air conditioning system of the present invention, the vertical plate-and-tube indirect evaporative cooling chiller uses a vertical plate-and-tube indirect evaporative cooler, and the secondary air is directly evaporatively cooled in the wet passage in the tube, and the primary air flows into the tube. The outer dry channel is cooled by isohumidity. The wide air flow channel outside the tube of this vertical plate-tube indirect evaporative cooler is not easy to block and is easy to clean; due to the automatic scouring effect of circulating water in the tube, it can effectively alleviate the air flow in the tube. The problem of clogging; the vertical heat exchanger tube bundle can reduce the floor space of the heat exchange tube in the horizontal direction; the use of the plate tube tube type enhances the effect of uniform water distribution in the tube, and at the same time increases the contact area between the primary air and the tube wall, The heat exchange effect is strengthened, the flow resistance is reduced, and the energy consumption of the fan is reduced;
(5)本发明的空调系统，立管式板管型间接蒸发冷却冷水机组中布置有乙二醇盘管，冬季防止机组冻裂，关闭水系统，排空水箱存水，充分利用室外冷风冷却盘管内的乙二醇溶液，被冷却的乙二醇溶液作为一次侧的冷媒通入板式换热器吸收室内末端的二次回水的热量。(5) In the air-conditioning system of the present invention, a ethylene glycol coil is arranged in the vertical plate-and-tube indirect evaporative cooling chiller, to prevent the chiller from freezing and cracking in winter, close the water system, empty the water tank to store water, and make full use of outdoor cold air for cooling The ethylene glycol solution in the coil, the cooled ethylene glycol solution is passed into the plate heat exchanger as the refrigerant on the primary side to absorb the heat of the secondary return water at the end of the room.
附图说明Description of drawings
图1是本发明机械制冷结合自然冷却方式的数据中心空调系统的结构示意图；FIG. 1 is a schematic structural diagram of a data center air-conditioning system with mechanical refrigeration combined with natural cooling according to the present invention;
图2是发明空调系统运行水源冷却模式的水循环系统流程示意图；Fig. 2 is the schematic flow chart of the water circulation system of the invention air-conditioning system operating the water source cooling mode;
图3是发明空调系统运行蒸发冷却模式的水循环系统流程示意图；Fig. 3 is the schematic flow chart of the water circulation system of the invention air-conditioning system operating the evaporative cooling mode;
图4是发明空调系统运行蒸发冷却结合机械制冷模式的水循环系统流程示意图；4 is a schematic flow chart of a water circulation system in which the air-conditioning system of the invention operates evaporative cooling combined with mechanical refrigeration mode;
图5是发明空调系统运行乙二醇自然冷却模式的水循环系统流程示意图；Fig. 5 is the schematic flow chart of the water circulation system of the invention air-conditioning system operating the ethylene glycol natural cooling mode;
图6是发明空调系统的立管式板管型间接蒸发冷却器芯体示意图。FIG. 6 is a schematic diagram of the core body of the vertical tube plate-and-tube indirect evaporative cooler of the inventive air conditioning system.
图中，1.直接蒸发冷却机组，2.填料组合单元，3.水箱a，4.水泵a，5.乙二醇盘管，6.布水器a，7.立管式板管型间接蒸发冷却机组，8.立管式板管型间接蒸发冷却器，9.挡水板，10.排风口，11.阀门a，12.阀门b，13.机械制冷冷水机组，14.阀门c，15.阀门d，16.水泵e，17.室内末端，18.水泵f，19.板式换热器，20.水泵d，21.阀门e，22.水泵c，23.阀门f，24.阀门g，25.阀门h，26.阀门i，27.风机a，28.第二进风口，29.布水器b，30.水箱b，31.供水管，32.二次风出口，33.水泵b，34.第一进风口，35.风机b。In the figure, 1. Direct evaporative cooling unit, 2. Packing combination unit, 3. Water tank a, 4. Water pump a, 5. Glycol coil, 6. Water distributor a, 7. Vertical plate tube type indirect Evaporative cooling unit, 8. Vertical plate-and-tube indirect evaporative cooler, 9. Water baffle, 10. Air outlet, 11. Valve a, 12. Valve b, 13. Mechanical refrigeration chiller, 14. Valve c , 15. Valve d, 16. Water pump e, 17. Indoor end, 18. Water pump f, 19. Plate heat exchanger, 20. Water pump d, 21. Valve e, 22. Water pump c, 23. Valve f, 24. Valve g, 25. Valve h, 26. Valve i, 27. Fan a, 28. Second air inlet, 29. Water distributor b, 30. Water tank b, 31. Water supply pipe, 32. Secondary air outlet, 33 . water pump b, 34. first air inlet, 35. fan b.
具体实施方式Detailed ways
下面结合附图和具体实施方式对本发明进行详细说明。The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
本发明机械制冷结合自然冷却方式的数据中心空调系统，如图1所示，包括有供回水系统、直接蒸发冷却机组1以及在直接蒸发冷却机组1左右两侧呈对称设置的立管式板管型间接蒸发冷却机组7，直接蒸发冷却机组1的左右两侧呈对称设置有两个第一进风口34，两个立管式板管型间接蒸发冷却机组7靠近直接蒸发冷却机组1的一侧均设置有一次风出口，两个第一进风口34分别与其对应一侧的立管式板管型间接蒸发冷却机组7的一次风出口连通；The data center air-conditioning system of the present invention with mechanical refrigeration combined with natural cooling, as shown in FIG. 1 , includes a water supply and return system, a direct evaporative cooling unit 1 and a vertical tube plate symmetrically arranged on the left and right sides of the direct evaporative cooling unit 1 The tubular indirect evaporative cooling unit 7 has two first air inlets 34 symmetrically arranged on the left and right sides of the direct evaporative cooling unit 1. Each side is provided with a primary air outlet, and the two first air inlets 34 are respectively connected with the primary air outlet of the vertical tube-type plate-and-tube indirect evaporative cooling unit 7 on the corresponding side;
供回水系统、直接蒸发冷却机组1以及在直接蒸发冷却机组1左右两侧呈对称设置的立管式板管型间接蒸发冷却机组7之间通过水管网连接。The water supply and return system, the direct evaporative cooling unit 1 and the vertical tube plate-and-tube indirect evaporative cooling unit 7 arranged symmetrically on the left and right sides of the direct evaporative cooling unit 1 are connected by a water pipe network.
供回水系统包括有依次连接的机械制冷冷水机组13、室内末端17、板式换热器19及水源；The water supply and return system includes a mechanical refrigeration chiller 13, an indoor terminal 17, a plate heat exchanger 19 and a water source connected in sequence;
机械制冷冷水机组13分别通过水管G9与水管G10与室内末端17连接，室内末端17分别通过水管G11与水管G12与板式换热器19连接，板式换热器19分别通过水管G7与水管G8与水源连接；The mechanical refrigeration chiller 13 is connected to the indoor end 17 through the water pipe G9 and the water pipe G10 respectively, the indoor end 17 is respectively connected to the plate heat exchanger 19 through the water pipe G11 and the water pipe G12, and the plate heat exchanger 19 is connected to the water source through the water pipe G7 and the water pipe G8 respectively. connect;
板式换热器19通过水管G1与直接蒸发冷却机组1连接，板式换热器19与两个立管式板管型间接蒸发冷却机组7之间设置有水管G3及水管G4，水管G3的一端与板式换热器19连接，水管G3的另一端分两路分别与两个立管式板管型间接蒸发冷却机组7连接，水管G4的一端与板式换热器19连接，水管G4的另一端分两路分别与两个立管式板管型间接蒸发冷却机组7连接；The plate heat exchanger 19 is connected to the direct evaporative cooling unit 1 through the water pipe G1, and a water pipe G3 and a water pipe G4 are arranged between the plate heat exchanger 19 and the two vertical plate and tube indirect evaporative cooling units 7. The plate heat exchanger 19 is connected, the other end of the water pipe G3 is connected to two vertical plate-and-tube indirect evaporative cooling units 7 in two ways, one end of the water pipe G4 is connected to the plate heat exchanger 19, and the other end of the water pipe G4 is divided into two parts. The two circuits are respectively connected with two vertical plate-and-tube indirect evaporative cooling units 7;
机械制冷冷水机组13通过水管G2与直接蒸发冷却机组1连接，机械制冷冷水机组13中的冷凝器通过水管G6与水管G1连接，板式换热器19通过水管G5与水管G2连接。The mechanical refrigeration chiller 13 is connected to the direct evaporative cooling unit 1 through the water pipe G2, the condenser in the mechanical refrigeration chiller 13 is connected to the water pipe G1 through the water pipe G6, and the plate heat exchanger 19 is connected to the water pipe G2 through the water pipe G5.
机械制冷冷水机组13包括有蒸发器、冷凝器及压缩机等部件。The mechanical refrigeration chiller 13 includes components such as an evaporator, a condenser, and a compressor.
直接蒸发冷却机组1包括有壳体a，壳体a内由上至下依次设置有挡水板9、布水器a6、填料组合单元2及水箱a3，布水器a6通过水管G1与板式换热器19连接，水箱a3通过水管G2与机械制冷冷水机组13中的冷凝器连接，挡水板9上方对应的壳体a顶部设置有排风口10，两个第一进风口34在填料组合单元2下方对应的壳体a左右两侧呈对称设置。The direct evaporative cooling unit 1 includes a casing a, and the casing a is provided with a water baffle 9, a water distributor a6, a packing combination unit 2 and a water tank a3 in order from top to bottom. The water distributor a6 is exchanged with the plate type through the water pipe G1. The heater 19 is connected, the water tank a3 is connected to the condenser in the mechanical refrigeration chiller 13 through the water pipe G2, the top of the shell a corresponding to the water baffle 9 is provided with an air outlet 10, and the two first air inlets 34 are in the packing combination. The left and right sides of the housing a corresponding to the lower part of the unit 2 are arranged symmetrically.
水管G2上设置有水泵a4。The water pipe G2 is provided with a water pump a4.
排风口10内设置有风机a27。A fan a27 is provided in the air outlet 10 .
填料组合单元2包括有设置在上层的方体填料及设置在下层的“V”型填料，两个第一进风口34在“V”型填料下方对应的壳体a左右两侧呈对称设置。The packing combination unit 2 includes a square packing arranged on the upper layer and a "V"-shaped packing arranged on the lower layer. The two first air inlets 34 are symmetrically arranged on the left and right sides of the shell a corresponding to the "V"-shaped packing.
立管式板管型间接蒸发冷却机组7包括有壳体b，壳体b靠近直接蒸发冷却机组1一侧的侧壁上设置有一次风出口，一次风出口与其对应一侧的第一进风口34连通，壳体b远离直接蒸发冷却机组1一侧的侧壁上设置有第二进风口28，壳体b内由上至下依次设置有布水器b29、立管式板管型间接蒸发冷却器8及水箱b30，布水器b29通过供水管31连接，供水管31上还设置有水泵b33，布水器b29上方对应的壳体b顶部设置有二次风出口32，二次风出口32内设置有风机b35；The vertical tube-type plate-and-tube indirect evaporative cooling unit 7 includes a casing b. The side wall of the casing b close to the direct evaporative cooling unit 1 is provided with a primary air outlet, and the primary air outlet corresponds to the first air inlet on the side. 34 is connected, the side wall of the shell b away from the direct evaporative cooling unit 1 is provided with a second air inlet 28, and the shell b is sequentially provided with a water distributor b29 and a vertical plate-tube indirect evaporator from top to bottom. The cooler 8 and the water tank b30, the water distributor b29 are connected by the water supply pipe 31, the water supply pipe 31 is also provided with a water pump b33, the top of the shell b corresponding to the water distributor b29 is provided with a secondary air outlet 32, and the secondary air outlet A fan b35 is arranged in 32;
如图6所示，立管式板管型间接蒸发冷却器8包括多个彼此平行呈立式设置的换热管。As shown in FIG. 6 , the vertical plate-and-tube indirect evaporative cooler 8 includes a plurality of heat exchange tubes that are vertically arranged in parallel with each other.
一次风出口及第二进风口28分别设置在立管式板管型间接蒸发冷却器8的两侧，立管式板管型间接蒸发冷却器8与一次风出口之间还设置有乙二醇盘管5；The primary air outlet and the second air inlet 28 are respectively arranged on both sides of the vertical plate-and-tube indirect evaporative cooler 8, and glycol is also provided between the vertical plate-and-tube indirect evaporative cooler 8 and the primary air outlet. Coil 5;
水管G3的一端与板式换热器19连接，水管G3的另一端分两路分别与设置在直接蒸发冷却机组1左右两侧的乙二醇盘管5的冷媒进口连接；One end of the water pipe G3 is connected to the plate heat exchanger 19, and the other end of the water pipe G3 is connected to the refrigerant inlet of the glycol coil 5 arranged on the left and right sides of the direct evaporative cooling unit 1 in two ways;
水管G4的一端与板式换热器19连接，水管G4的另一端分两路分别与设置在直接蒸发冷却机组1左右两侧的乙二醇盘管5的冷媒出口连接。One end of the water pipe G4 is connected to the plate heat exchanger 19 , and the other end of the water pipe G4 is connected to the refrigerant outlets of the glycol coils 5 arranged on the left and right sides of the direct evaporative cooling unit 1 in two separate ways.
水管G3上设置有水泵c22，水管G7上设置有水泵d20，水管G10上设置有水泵e16，水管G12上设置有水泵f18。The water pipe G3 is provided with a water pump c22, the water pipe G7 is provided with a water pump d20, the water pipe G10 is provided with a water pump e16, and the water pipe G12 is provided with a water pump f18.
水管G1上设置有阀门i26，水管G2上设置有阀门b12，水管G3上设置有阀门g24，水管G4上设置有阀门f23，水管G5上设置有阀门h25，水管G6上设置有阀门a11，水管G7上设置有阀门e21，水管G9上设置有阀门c14，水管G10上设置有阀门d15。Water pipe G1 is provided with valve i26, water pipe G2 is provided with valve b12, water pipe G3 is provided with valve g24, water pipe G4 is provided with valve f23, water pipe G5 is provided with valve h25, water pipe G6 is provided with valve a11, water pipe G7 is provided with valve A valve e21 is provided on the water pipe G9, a valve c14 is provided on the water pipe G9, and a valve d15 is provided on the water pipe G10.
本发明的空调系统的运行模式如下：The operation mode of the air conditioning system of the present invention is as follows:
(1)运行水源自然冷却模式：(1) Running water source natural cooling mode:
如图2所示，水源水温小于等于16℃，运行水源自然冷却模式，仅开启水泵f 18、水泵d 20，开启阀门e 21，立管式板管型间接蒸发冷却冷水机组(包括有直接蒸发冷却机组以及在直接蒸发冷却机组左右两侧呈对称设置的立管式板管型间接蒸发冷却机组)、机械制冷冷水机组13、乙二醇盘管5、不工作，水源冷水作为一次侧的供水通入板式换热器19吸收室内末端17的二次回水的热量，关闭供回水系统其他的水泵和阀门，系统由水源单独制冷。As shown in Figure 2, the water temperature of the water source is less than or equal to 16 °C, the water source natural cooling mode is operated, only the water pump f 18 and the water pump d 20 are turned on, and the valve e 21 is turned on. The cooling unit and the vertical plate-and-tube indirect evaporative cooling unit arranged symmetrically on the left and right sides of the direct evaporative cooling unit), the mechanical refrigeration chiller 13, the ethylene glycol coil 5, do not work, and the water source cold water is used as the water supply on the primary side The incoming plate heat exchanger 19 absorbs the heat of the secondary return water at the indoor end 17, closes other pumps and valves in the water supply and return system, and the system is cooled by the water source alone.
(2)运行蒸发冷却模式：(2) Running evaporative cooling mode:
如图3所示，水源水温高于16℃时，运行蒸发冷却模式，开启水泵a 4、水泵f 18，开启阀门h 25、阀门i 26，关闭供回水系统其他的水泵和阀门，水源冷却系统、机械制冷冷水机组13、乙二醇盘管5不工作，立管式板管型间接蒸发冷却冷水机组制取低于16℃的高温冷水作为一次侧的供水通入板式换热器19吸收室内末端17的二次回水的热量，系统由立管式板管型间接蒸发冷却冷水机组单独制冷。As shown in Figure 3, when the water temperature of the water source is higher than 16 ℃, the evaporative cooling mode is operated, the water pump a 4 and the water pump f 18 are turned on, the valve h 25 and the valve i 26 are opened, and other water pumps and valves of the water supply and return system are closed, and the water source is cooled. The system, the mechanical refrigeration chiller 13, and the ethylene glycol coil 5 do not work. The vertical plate-and-tube indirect evaporative cooling chiller produces high-temperature cold water below 16°C as the water supply on the primary side and passes into the plate heat exchanger 19 for absorption. For the heat of the secondary return water at the indoor end 17, the system is independently cooled by a vertical plate-and-tube indirect evaporative cooling chiller.
(3)运行蒸发冷却结合机械制冷的模式：(3) The mode of running evaporative cooling combined with mechanical cooling:
如图4所示，水源水温高于16℃时，且立管式板管型间接蒸发冷却冷水机组出水温度高于16℃时，运行蒸发冷却结合机械制冷的模式，开启水泵水泵a 4、水泵e 16，开启阀门a 11、阀门b 12、阀门c 14及阀门d 15，关闭供回水系统其他的水泵和阀门，开启立管式板管型间接蒸发冷却冷水机组和机械制冷冷水机组13，室内末端17的回水通过机械制冷冷水机组13冷却，系统由机械制冷冷水机组13和立管式板管型间接蒸发冷却冷水机组联合制冷。As shown in Figure 4, when the water temperature of the water source is higher than 16°C, and the outlet water temperature of the vertical plate-and-tube type indirect evaporative cooling chiller is higher than 16°C, the mode of evaporative cooling combined with mechanical cooling is operated, and the water pump is turned on. 4. Water pump e 16, open valve a 11, valve b 12, valve c 14 and valve d 15, close other water pumps and valves of the water supply and return system, open the vertical plate-and-tube indirect evaporative cooling chiller and mechanical refrigeration chiller 13, The return water at the indoor end 17 is cooled by the mechanical refrigeration chiller 13, and the system is jointly refrigerated by the mechanical refrigeration chiller 13 and the vertical plate-and-tube indirect evaporative cooling chiller.
(4)运行乙二醇自然冷却模式：(4) Running glycol natural cooling mode:
如图5所示，冬季寒冷天气，运行乙二醇自然冷却模式，开启水泵18、22，开启阀门23、24，关闭供回水系统其他的水泵和阀门，乙二醇盘管5、6内被冷却的乙二醇溶液作为一次侧的冷媒通入板式换热19吸收室内末端17的二次回水的热量，系统单独由乙二醇盘管制冷。As shown in Figure 5, in the cold weather in winter, run the glycol natural cooling mode, turn on the water pumps 18, 22, open the valves 23, 24, close other water pumps and valves in the water supply and return system, and the glycol coils 5, 6 The cooled ethylene glycol solution is passed into the plate heat exchange 19 as the primary side refrigerant to absorb the heat of the secondary return water at the indoor end 17, and the system is cooled by the ethylene glycol coil alone.
本发明空调系统的优点为，充分利用多种自然冷却技术，包括：干空气能蒸发冷却技术、水源自然冷却技术、冬季乙二醇自然冷却技术，依据气象条件，切换运行自然冷却模式，延长自然冷却模式的时间；在自然冷却模式不能满足设计需求时，开启蒸发冷却结合机械制冷的节能运行模式。The advantage of the air conditioning system of the present invention is that it makes full use of a variety of natural cooling technologies, including: dry air energy evaporative cooling technology, water source natural cooling technology, and winter ethylene glycol natural cooling technology. The time of cooling mode; when the natural cooling mode cannot meet the design requirements, the energy-saving operation mode of evaporative cooling combined with mechanical cooling is turned on.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910156250.7ACN109990412B (en) | 2019-03-01 | 2019-03-01 | Data Center Air Conditioning System Combined with Mechanical Refrigeration and Natural Cooling |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910156250.7ACN109990412B (en) | 2019-03-01 | 2019-03-01 | Data Center Air Conditioning System Combined with Mechanical Refrigeration and Natural Cooling |
| Publication Number | Publication Date |
|---|---|
| CN109990412Atrue CN109990412A (en) | 2019-07-09 |
| CN109990412B CN109990412B (en) | 2020-12-08 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910156250.7AActiveCN109990412B (en) | 2019-03-01 | 2019-03-01 | Data Center Air Conditioning System Combined with Mechanical Refrigeration and Natural Cooling |
| Country | Link |
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| CN (1) | CN109990412B (en) |
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| CN203116208U (en)* | 2013-03-19 | 2013-08-07 | 西安工程大学 | External cooling type evaporative cooling and mechanical refrigeration combined air-conditioning system for data machine room |
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| US20170276382A1 (en)* | 2016-03-22 | 2017-09-28 | King Fahd University Of Petroleum And Minerals | Evaporative condenser cooling system |
| CN108848655A (en)* | 2018-06-29 | 2018-11-20 | 西安工程大学 | Data center of the fan wall in conjunction with Radiation Module natural cooling air-conditioning system |
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| CN111256258A (en)* | 2020-02-26 | 2020-06-09 | 西安工程大学 | Evaporative condensing chiller combined with fluorine pump natural cooling |
| CN111315193A (en)* | 2020-03-12 | 2020-06-19 | 西安工程大学 | Air conditioning system for data centers combining evaporative cooling and surface cooler technology |
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