CN107965963A - One kind freezing water cooling system - Google Patents
One kind freezing water cooling system Download PDFInfo
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- CN107965963A CN107965963A CN201711406659.7A CN201711406659A CN107965963A CN 107965963 A CN107965963 A CN 107965963A CN 201711406659 A CN201711406659 A CN 201711406659A CN 107965963 A CN107965963 A CN 107965963A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 238
- 238000001816 cooling Methods 0.000 title claims abstract description 79
- 238000007710 freezing Methods 0.000 title claims abstract 13
- 230000008014 freezing Effects 0.000 title claims abstract 13
- 230000006835 compression Effects 0.000 claims abstract description 18
- 238000007906 compression Methods 0.000 claims abstract description 18
- 229910001369 Brass Inorganic materials 0.000 claims description 17
- 239000010951 brass Substances 0.000 claims description 17
- 239000003507 refrigerant Substances 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims 3
- 238000001914 filtration Methods 0.000 claims 3
- 238000005057 refrigeration Methods 0.000 abstract description 34
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 description 56
- 238000000034 method Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D16/00—Devices using a combination of a cooling mode associated with refrigerating machinery with a cooling mode not associated with refrigerating machinery
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2106—Temperatures of fresh outdoor air
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
Description
技术领域technical field
本发明属于服务器制冷技术领域，尤其涉及一种冷冻水冷却系统。The invention belongs to the technical field of server cooling, and in particular relates to a chilled water cooling system.
背景技术Background technique
数据中心是一整套复杂的设施。其不仅仅包括计算机系统和其它与之配套的设备(例如通信和存储系统)，还包含冗余的数据通信连接、环境控制设备、监控设备以及各种安全装置。数据中心在运行过程中，温度和湿度必须被严格控制，以提供可连续运行的温度和湿度范围。A data center is a complex set of facilities. It includes not only computer systems and other supporting equipment (such as communication and storage systems), but also redundant data communication connections, environmental control equipment, monitoring equipment, and various safety devices. During the operation of the data center, the temperature and humidity must be strictly controlled to provide a continuous operating temperature and humidity range.
目前，数据中心的制冷空调大多采用的是压缩式制冷循环，随着信息技术的发展，服务器散热量和机房散热密度的增长，依靠电力的精密空调散热方式，因其耗电量大，占数据中心能耗的40％以上，造成评价数据中心能源效率的指标(Power UsageEffectiveness，PUE)居高不不下。At present, most of the refrigeration and air conditioners in data centers use compression refrigeration cycles. With the development of information technology, the heat dissipation of servers and the heat dissipation density of computer rooms are increasing. More than 40% of the energy consumption of the center causes the index (Power Usage Effectiveness, PUE) to evaluate the energy efficiency of the data center to remain high.
发明内容Contents of the invention
本发明的目的在于提供一种冷冻水冷却系统，旨在解决现有技术中依靠电力的精密空调散热方式，造成评价数据中心能源效率的指标居高不不下的问题。The object of the present invention is to provide a chilled water cooling system, aiming to solve the problem that the energy efficiency index of the data center remains high due to the precise air-conditioning heat dissipation method relying on electric power in the prior art.
本发明是这样实现的，一种冷冻水冷却系统，所述冷冻水冷却系统包括与回水接头连接的第一三通调节阀，所述第一三通调节阀设有第一入水口、第二入水口和出水口；The present invention is achieved in this way, a chilled water cooling system, the chilled water cooling system includes a first three-way regulating valve connected to the return water joint, the first three-way regulating valve is provided with a first water inlet, a second Two water inlets and outlets;
所述第一三通调节阀的第一入水口和第二入水口之间的管路上设有对高温水进行自然冷却的自然冷却装置；A natural cooling device for naturally cooling high-temperature water is provided on the pipeline between the first water inlet and the second water inlet of the first three-way regulating valve;
所述第一三通调节阀的出水口的管道上连接有第二三通调节阀，所述第二三通调节阀设有第一出水口、第二出水口和入水口，所述第二三通调节阀的第一出水口与蒸发器的入水口连接，所述蒸发器的出水口连接出水管路，所述蒸发器与用于提供氟利昂循环制冷的压缩制冷装置连接；The pipeline of the water outlet of the first three-way regulating valve is connected with a second three-way regulating valve, and the second three-way regulating valve is provided with a first water outlet, a second water outlet and a water inlet. The first water outlet of the three-way regulating valve is connected to the water inlet of the evaporator, the water outlet of the evaporator is connected to the water outlet pipeline, and the evaporator is connected to the compression refrigeration device for providing Freon cycle refrigeration;
所述第二三通调节阀的第二出水口与第二旁通管路连通，所述第二旁通管路的另一端与所述出水管路连通。The second water outlet of the second three-way regulating valve communicates with the second bypass pipeline, and the other end of the second bypass pipeline communicates with the water outlet pipeline.
作为一种改进的方案，所述自然冷却装置包括一自然冷却盘管，其中，所述第一三通调节阀的第一入水口与所述自然冷却盘管的进水口连通，所述第一三通调节阀的第二入水口与所述自然冷却盘管的出水口连通。As an improved solution, the natural cooling device includes a natural cooling coil, wherein the first water inlet of the first three-way regulating valve communicates with the water inlet of the natural cooling coil, and the first The second water inlet of the three-way regulating valve communicates with the water outlet of the natural cooling coil.
作为一种改进的方案，所述第一三通调节阀的第一入水口与所述自然冷却盘管的进水口之间的管道上设有盘管温度传感器；As an improved solution, a coil temperature sensor is provided on the pipeline between the first water inlet of the first three-way regulating valve and the water inlet of the natural cooling coil;
所述第一三通调节阀的第二入水口与所述自然冷却盘管的出水口之间的管路上设有第一黄铜球阀。A first brass ball valve is provided on the pipeline between the second water inlet of the first three-way regulating valve and the water outlet of the natural cooling coil.
作为一种改进的方案，所述第一三通调节阀设有第一旁通管路；As an improved solution, the first three-way regulating valve is provided with a first bypass pipeline;
所述第一旁通管路包含第一旁通球阀，所述第一旁通球阀的进水端与所述自然冷却盘管的出水口连接，所述第一旁通球阀的出水端与所述第一三通调节阀的出水口所连通的管道连通。The first bypass pipeline includes a first bypass ball valve, the water inlet end of the first bypass ball valve is connected to the water outlet of the natural cooling coil, and the water outlet end of the first bypass ball valve is connected to the water outlet of the natural cooling coil. The pipeline connected with the water outlet of the first three-way regulating valve is connected.
作为一种改进的方案，所述压缩制冷装置包括压缩机、冷凝器、低压开关、高压开关、干燥过滤器和膨胀阀，其中：As an improved solution, the compression refrigeration device includes a compressor, a condenser, a low-pressure switch, a high-pressure switch, a dry filter and an expansion valve, wherein:
所述压缩机一端与所述蒸发器的冷媒出口连接，另一端与所述冷凝器的入口连通，所述冷凝器的出口与所述干燥过滤器连通，所述干燥过滤器与所述膨胀阀入口连通，所述膨胀阀的出口与所述蒸发器的冷媒入口连通；One end of the compressor is connected to the refrigerant outlet of the evaporator, the other end is connected to the inlet of the condenser, the outlet of the condenser is connected to the dry filter, and the dry filter is connected to the expansion valve The inlet is connected, and the outlet of the expansion valve is connected with the refrigerant inlet of the evaporator;
所述低压开关和高压开关分别设置在所述压缩机两侧的冷媒管路上。The low pressure switch and the high pressure switch are respectively arranged on the refrigerant pipelines on both sides of the compressor.
作为一种改进的方案，所述出水管路包括膨胀罐、闭式水箱和离心泵，其中：As an improved solution, the water outlet pipeline includes an expansion tank, a closed water tank and a centrifugal pump, wherein:
所述膨胀罐通过第二黄铜球阀与所述出水管路连通，所述闭式水箱设置在所述出水管路上，所述离心泵设置在所述闭式水箱的出水端上，所述离心泵的另一端与出水接头连接。The expansion tank communicates with the water outlet pipeline through a second brass ball valve, the closed water tank is arranged on the water outlet pipeline, the centrifugal pump is arranged on the water outlet end of the closed water tank, and the centrifugal The other end of the pump is connected with the water outlet connector.
作为一种改进的方案，所述闭式水箱设有第三旁通管路，所述第三旁通管路的两端分别设置在所述闭式水箱的入水口和出水口所在的出水管路上；As an improved solution, the closed water tank is provided with a third bypass pipeline, and the two ends of the third bypass pipeline are respectively arranged in the water outlet pipe where the water inlet and the water outlet of the closed water tank are located. on the road;
所述第三旁通管路上设有第三黄铜球阀。A third brass ball valve is provided on the third bypass line.
作为一种改进的方案，所述第一三通调节阀与所述回水接头之间的管路上设有回水温度传感器。As an improved solution, a return water temperature sensor is provided on the pipeline between the first three-way regulating valve and the return water joint.
作为一种改进的方案，所述蒸发器的出水口所在的出水管路上设有第四黄铜球阀和蒸发器出水温度传感器。As an improved solution, a fourth brass ball valve and an evaporator outlet water temperature sensor are provided on the outlet pipeline where the water outlet of the evaporator is located.
作为一种改进的方案，所述离心泵与所述出水接头之间的出水管路上设有出水温度传感器。As an improved solution, a water outlet temperature sensor is provided on the water outlet pipeline between the centrifugal pump and the water outlet joint.
在本发明实施例中，冷冻水冷却系统包括第一三通调节阀，第一三通调节阀设有第一入水口、第二入水口和出水口；第一三通调节阀的第一入水口和第二入水口之间的管路上设有自然冷却装置；第一三通调节阀的出水口的管道上连接有第二三通调节阀，第二三通调节阀设有第一出水口、第二出水口和入水口，第二三通调节阀的第一出水口与蒸发器的入水口连接，蒸发器的出水口连接出水管路，蒸发器与压缩制冷装置连接；第二三通调节阀的第二出水口与第二旁通管路连通，第二旁通管路的另一端与出水管路连通，从而为用户提供完全压缩机制冷、完全自然冷却和压缩与自然相结合制冷的制冷方式，降低了制冷成本，节能降耗，提高机组的能效。In the embodiment of the present invention, the chilled water cooling system includes a first three-way regulating valve, the first three-way regulating valve is provided with a first water inlet, a second water inlet and a water outlet; the first inlet of the first three-way regulating valve The pipeline between the water inlet and the second water inlet is provided with a natural cooling device; the pipeline of the water outlet of the first three-way regulating valve is connected with a second three-way regulating valve, and the second three-way regulating valve is provided with a first water outlet , the second water outlet and the water inlet, the first water outlet of the second three-way regulating valve is connected to the water inlet of the evaporator, the water outlet of the evaporator is connected to the water outlet pipeline, and the evaporator is connected to the compression refrigeration device; the second three-way The second water outlet of the regulating valve communicates with the second bypass pipeline, and the other end of the second bypass pipeline communicates with the water outlet pipeline, so as to provide users with complete compressor refrigeration, complete natural cooling and combined compression and natural refrigeration The cooling method reduces the cooling cost, saves energy and reduces consumption, and improves the energy efficiency of the unit.
附图说明Description of drawings
图1是本发明提供的冷冻水冷却系统的结构示意图；Fig. 1 is the structural representation of chilled water cooling system provided by the present invention;
1-回水接头，2-第一三通调节阀，3-第二三通调节阀，4-蒸发器，5-出水管路，6-第二旁通管路，7-自然冷却盘管，8-盘管温度传感器，9-第一黄铜球阀，10-第一旁通管路，11-第一旁通球阀，12-压缩机，13-冷凝器，14-低压开关，15-高压开关，16-干燥过滤器，17-膨胀阀，18-冷媒管路，19-膨胀罐，20-闭式水箱，21-离心泵，22-第二黄铜球阀，23-第三旁通管路，24-第三黄铜球阀，25-回水温度传感器，26-第四黄铜球阀，27-蒸发器出水温度传感器，28-出水温度传感器，29-出水接头。1-Return water connector, 2-First three-way regulating valve, 3-Second three-way regulating valve, 4-Evaporator, 5-Water outlet pipe, 6-Second bypass pipe, 7-Natural cooling coil , 8-coil temperature sensor, 9-the first brass ball valve, 10-the first bypass line, 11-the first bypass ball valve, 12-compressor, 13-condenser, 14-low pressure switch, 15- High pressure switch, 16-dry filter, 17-expansion valve, 18-refrigerant pipeline, 19-expansion tank, 20-closed water tank, 21-centrifugal pump, 22-second brass ball valve, 23-third bypass Pipeline, 24-third brass ball valve, 25-return water temperature sensor, 26-fourth brass ball valve, 27-evaporator outlet water temperature sensor, 28-outlet water temperature sensor, 29-outlet water connector.
具体实施方式Detailed ways
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
图1示出了本发明提供的冷冻水冷却系统的结构示意图，其中图中仅给出了与本发明实施例相关的部分。Fig. 1 shows a schematic structural diagram of a chilled water cooling system provided by the present invention, in which only the parts related to the embodiment of the present invention are shown in the figure.
冷冻水冷却系统包括与回水接头1连接的第一三通调节阀2，所述第一三通调节阀2设有第一入水口、第二入水口和出水口；The chilled water cooling system includes a first three-way regulating valve 2 connected to the return water joint 1, and the first three-way regulating valve 2 is provided with a first water inlet, a second water inlet and a water outlet;
所述第一三通调节阀2的第一入水口和第二入水口之间的管路上设有对高温水进行自然冷却的自然冷却装置；A natural cooling device for naturally cooling high-temperature water is provided on the pipeline between the first water inlet and the second water inlet of the first three-way regulating valve 2;
所述第一三通调节阀2的出水口的管道上连接有第二三通调节阀3，所述第二三通调节阀3设有第一出水口、第二出水口和入水口，所述第二三通调节阀3的第一出水口与蒸发器4的入水口连接，所述蒸发器4的出水口连接出水管路5，所述蒸发器4与用于提供氟利昂循环制冷的压缩制冷装置连接；The pipeline of the water outlet of the first three-way regulating valve 2 is connected with a second three-way regulating valve 3, and the second three-way regulating valve 3 is provided with a first water outlet, a second water outlet and a water inlet, so The first water outlet of the second three-way regulating valve 3 is connected to the water inlet of the evaporator 4, the water outlet of the evaporator 4 is connected to the water outlet pipeline 5, and the evaporator 4 is connected to the compressor for providing Freon cycle refrigeration. Refrigeration unit connection;
所述第二三通调节阀3的第二出水口与第二旁通管路6连通，所述第二旁通管路6的另一端与所述出水管路5连通。The second water outlet of the second three-way regulating valve 3 communicates with the second bypass pipeline 6 , and the other end of the second bypass pipeline 6 communicates with the water outlet pipeline 5 .
其中，如图1所示，自然冷却装置包括一自然冷却盘管7，其中，所述第一三通调节阀2的第一入水口与所述自然冷却盘管7的进水口连通，所述第一三通调节阀2的第二入水口与所述自然冷却盘管7的出水口连通；Wherein, as shown in Figure 1, the natural cooling device includes a natural cooling coil 7, wherein the first water inlet of the first three-way regulating valve 2 communicates with the water inlet of the natural cooling coil 7, the The second water inlet of the first three-way regulating valve 2 communicates with the water outlet of the natural cooling coil 7;
当然该自然冷却装置也可以采用其他形式来实现，在此不再赘述。Of course, the natural cooling device can also be implemented in other forms, which will not be repeated here.
在本发明实施例中，第一三通调节阀2的第一入水口与所述自然冷却盘管7的进水口之间的管道上设有盘管温度传感器8，该盘管温度传感器8用于检测盘管的温度，并作为后续压缩制冷和自然制冷相结合的控制依据；In the embodiment of the present invention, a coil temperature sensor 8 is provided on the pipeline between the first water inlet of the first three-way regulating valve 2 and the water inlet of the natural cooling coil 7, and the coil temperature sensor 8 is used for It is used to detect the temperature of the coil, and it is used as the control basis for the combination of subsequent compression refrigeration and natural refrigeration;
所述第一三通调节阀2的第二入水口与所述自然冷却盘管7的出水口之间的管路上设有第一黄铜球阀9，该第一黄铜球阀9的设置便于对水路的控制。A first brass ball valve 9 is arranged on the pipeline between the second water inlet of the first three-way regulating valve 2 and the water outlet of the natural cooling coil 7, and the setting of the first brass ball valve 9 is convenient for Waterway control.
在该实施例中，第一三通调节阀2设有第一旁通管路11；In this embodiment, the first three-way regulating valve 2 is provided with a first bypass pipeline 11;
所述第一旁通管路10包含第一旁通球阀11，所述第一旁通球阀11的进水端与所述自然冷却盘管7的出水口连接，所述第一旁通球阀11的出水端与所述第一三通调节阀2的出水口所连通的管道连通。The first bypass pipeline 10 includes a first bypass ball valve 11, the water inlet end of the first bypass ball valve 11 is connected to the water outlet of the natural cooling coil 7, and the first bypass ball valve 11 The water outlet end of the first three-way regulating valve 2 communicates with the pipeline communicated with the water outlet.
其中，该第一旁通管路10的设置，便于对管路的维护和检修，例如对第一三通调节阀2的维修。Wherein, the setting of the first bypass pipeline 10 facilitates the maintenance and inspection of the pipeline, such as the maintenance of the first three-way regulating valve 2 .
在本发明实施例中，压缩制冷装置包括压缩机12、冷凝器13、低压开关14、高压开关15、干燥过滤器16和膨胀阀17，其中：In the embodiment of the present invention, the compression refrigeration device includes a compressor 12, a condenser 13, a low pressure switch 14, a high pressure switch 15, a dry filter 16 and an expansion valve 17, wherein:
所述压缩机12一端与所述蒸发器4的冷媒出口连接，另一端与所述冷凝器13的入口连通，所述冷凝器13的出口与所述干燥过滤器16连通，所述干燥过滤器16与所述膨胀阀17入口连通，所述膨胀阀17的出口与所述蒸发器4的冷媒入口连通；One end of the compressor 12 is connected to the refrigerant outlet of the evaporator 4, and the other end is connected to the inlet of the condenser 13, and the outlet of the condenser 13 is connected to the dry filter 16, and the dry filter 16 communicates with the inlet of the expansion valve 17, and the outlet of the expansion valve 17 communicates with the refrigerant inlet of the evaporator 4;
所述低压开关14和高压开关15分别设置在所述压缩机12两侧的冷媒管路18上。The low pressure switch 14 and the high pressure switch 15 are respectively arranged on the refrigerant pipeline 18 on both sides of the compressor 12 .
其中，上述压缩制冷装置为常规的压缩制冷结构，在此不再赘述。Wherein, the above-mentioned compression refrigeration device is a conventional compression refrigeration structure, which will not be repeated here.
如图1所示，出水管路5包括膨胀罐19、闭式水箱20和离心泵21，其中：As shown in Figure 1, the outlet pipeline 5 includes an expansion tank 19, a closed water tank 20 and a centrifugal pump 21, wherein:
所述膨胀罐19通过第二黄铜球阀22与所述出水管路5连通，所述闭式水箱20设置在所述出水管路5上，所述离心泵21设置在所述闭式水箱20的出水端上，所述离心泵21的另一端与出水接头29连接。The expansion tank 19 communicates with the water outlet pipeline 5 through a second brass ball valve 22, the closed water tank 20 is arranged on the water outlet pipeline 5, and the centrifugal pump 21 is arranged in the closed water tank 20 The other end of the centrifugal pump 21 is connected to the water outlet joint 29.
在该实施例中，闭式水箱20设有第三旁通管路23，所述第三旁通管路23的两端分别设置在所述闭式水箱20的入水口和出水口所在的出水管路5上；In this embodiment, the closed water tank 20 is provided with a third bypass pipeline 23, and the two ends of the third bypass pipeline 23 are respectively set at the outlet where the water inlet and the water outlet of the closed water tank 20 are located. On the water pipeline 5;
所述第三旁通管路23上设有第三黄铜球阀24。A third brass ball valve 24 is provided on the third bypass line 23 .
其中，该第三旁通管路23的设置，便于对管路的维护和检修，例如对闭式水箱20的维修。Wherein, the arrangement of the third bypass pipeline 23 facilitates the maintenance and inspection of the pipeline, for example, the maintenance of the closed water tank 20 .
在本发明实施例中，该冷冻水冷却系统还设有其他部件，例如：In the embodiment of the present invention, the chilled water cooling system is also provided with other components, such as:
第一三通调节阀2与所述回水接头1之间的管路上设有回水温度传感器25；A return water temperature sensor 25 is provided on the pipeline between the first three-way regulating valve 2 and the return water joint 1;
蒸发器4的出水口所在的出水管路5上设有第四黄铜球阀26和蒸发器出水温度传感器27；The water outlet pipeline 5 where the water outlet of the evaporator 4 is located is provided with a fourth brass ball valve 26 and an evaporator water outlet temperature sensor 27;
离心泵21与所述出水接头29之间的出水管路5上设有出水温度传感器28；An outlet water temperature sensor 28 is provided on the outlet pipeline 5 between the centrifugal pump 21 and the outlet connector 29;
该各个传感器的设置便于对水的温度进行监测，做到及时控制，在此不再赘述。The arrangement of the various sensors is convenient for monitoring the temperature of the water so as to achieve timely control, which will not be repeated here.
当然，在冷冻水冷却系统中还包括其他结构件，用于完善制冷功能，例如压力表和其他控制阀，在此不再赘述。Of course, the chilled water cooling system also includes other structural components to improve the cooling function, such as pressure gauges and other control valves, which will not be repeated here.
在本发明实施例中，上述第一三通调节阀2和第二三通调节阀3的设置实现完全压缩机制冷、完全自然冷却和压缩与自然相结合制冷的制冷方式，达到节能降耗的目的，其中，为了便于理解，结合图1，下述给出该三种制冷方式的简要实现过程：In the embodiment of the present invention, the setting of the above-mentioned first three-way regulating valve 2 and the second three-way regulating valve 3 realizes complete compressor refrigeration, complete natural cooling and refrigeration combined with compression and natural refrigeration, achieving energy saving and consumption reduction Purpose, wherein, in order to facilitate understanding, in combination with Figure 1, the brief implementation process of the three refrigeration methods is given as follows:
(1)完全压缩机制冷(1)Complete compressor refrigeration
在冷冻水冷却系统中，设定供水温度为15℃，回水温度设计为20℃，当室外环境温度T≥20℃时，控制关闭自然冷却装置，启动压缩制冷装置单独实现制冷，来自回水接头1的高温水进入第一三通调节阀2进入室内的蒸发器4，此时自然冷却装置部分水路不通，第二三通调节阀3控制第二旁通管路6关闭，冷量完全由压缩制冷装置提供，实现完全压缩机12制冷，在蒸发器4内降温后的冷水经水流开关、膨胀罐19、闭式水箱20、水泵等进入出水接头，在冷水末端内换热升温后再回到冷水机组，如此循环；In the chilled water cooling system, the supply water temperature is set to 15°C, and the return water temperature is designed to be 20°C. When the outdoor ambient temperature T≥20°C, the natural cooling device is controlled to be turned off, and the compression refrigeration device is started to achieve cooling alone. The high-temperature water from the joint 1 enters the first three-way regulating valve 2 and enters the indoor evaporator 4. At this time, part of the waterway of the natural cooling device is blocked, and the second three-way regulating valve 3 controls the closing of the second bypass line 6. The compression refrigeration device is provided to realize the complete refrigeration of the compressor 12. The cold water cooled in the evaporator 4 enters the water outlet joint through the water flow switch, the expansion tank 19, the closed water tank 20, the water pump, etc., and returns to To the chiller, so cycle;
(2)完全自然冷却(2) completely natural cooling
当室外温度T＜10℃时，启动自然冷却，关闭压缩机12制冷，来回水接头1的高温水经过室外自然冷却装置冷却后进入通过第一三通调节阀2，此时第二三通调节阀3控制第二旁通管路6开启，回水不经过蒸发器4，实现完全自然冷却，降温后的冷水经水流开关、膨胀罐19、闭式水箱20、水泵等进入出水接头，在冷水末端内换热升温后再回到冷水机组，如此循环；When the outdoor temperature T<10°C, start the natural cooling, turn off the compressor 12 to cool, and the high-temperature water from the back-and-forth water joint 1 is cooled by the outdoor natural cooling device and enters through the first three-way regulating valve 2. At this time, the second three-way regulating valve The valve 3 controls the opening of the second bypass pipeline 6, and the return water does not pass through the evaporator 4 to realize complete natural cooling. The cooled cold water enters the water outlet joint through the water flow switch, the expansion tank 19, the closed water tank 20, the water pump, etc. After the heat exchange in the end heats up, it returns to the chiller, and the cycle is like this;
(3)在冷冻水冷却系统中，设定供水温度为15℃，回水温度设计为20℃，当室外环境温度10℃＜T≤18℃时，启动自然冷却，来自回水接头1的高温水经过室外自然冷却装置冷却后进入通过第一三通调节阀2，并依次进入室内的蒸发器4，第二三通调节阀3控制第二旁通管路6关闭，不足的冷量由压缩制冷装置提供，实现部分自然冷却，降温后的冷水经水流开关、膨胀罐19、闭式水箱20、水泵等进入出水接头，在冷水末端内换热升温后再回到冷水机组，如此循环。(3) In the chilled water cooling system, the water supply temperature is set at 15°C, and the return water temperature is designed at 20°C. When the outdoor ambient temperature is 10°C<T≤18°C, natural cooling is started, and the high temperature from the return water joint 1 After being cooled by the outdoor natural cooling device, the water enters through the first three-way regulating valve 2, and then enters the indoor evaporator 4 in sequence. The second three-way regulating valve 3 controls the closing of the second bypass pipeline 6, and the insufficient cooling capacity is provided by the compressor. Refrigeration device is provided to realize partial natural cooling. The cooled cold water enters the water outlet joint through the water flow switch, expansion tank 19, closed water tank 20, water pump, etc., and returns to the chiller after heat exchange in the cold water end, and the cycle is like this.
上述仅给出了简要的制冷原理，在此不再赘述。The above only gives a brief refrigeration principle, which will not be repeated here.
在本发明实施例中，冷冻水冷却系统包括第一三通调节阀2，第一三通调节阀2设有第一入水口、第二入水口和出水口；第一三通调节阀2的第一入水口和第二入水口之间的管路上设有自然冷却装置；第一三通调节阀2的出水口的管道上连接有第二三通调节阀3，第二三通调节阀3设有第一出水口、第二出水口和入水口，第二三通调节阀3的第一出水口与蒸发器4的入水口连接，蒸发器4的出水口连接出水管路5，蒸发器4与压缩制冷装置连接；第二三通调节阀3的第二出水口与第二旁通管路6连通，第二旁通管路6的另一端与出水管路5连通，从而为用户提供完全压缩机制冷、完全自然冷却和压缩与自然相结合制冷的制冷方式，降低了制冷成本，节能降耗，提高机组的能效。In the embodiment of the present invention, the chilled water cooling system includes a first three-way regulating valve 2, and the first three-way regulating valve 2 is provided with a first water inlet, a second water inlet and a water outlet; The pipeline between the first water inlet and the second water inlet is provided with a natural cooling device; the pipeline of the water outlet of the first three-way regulating valve 2 is connected with a second three-way regulating valve 3, and the second three-way regulating valve 3 A first water outlet, a second water outlet and a water inlet are provided, the first water outlet of the second three-way regulating valve 3 is connected to the water inlet of the evaporator 4, the water outlet of the evaporator 4 is connected to the water outlet pipeline 5, and the evaporator 4 is connected to the compression refrigeration device; the second water outlet of the second three-way regulating valve 3 communicates with the second bypass pipeline 6, and the other end of the second bypass pipeline 6 communicates with the water outlet pipeline 5, thereby providing users with The refrigeration methods of complete compressor refrigeration, complete natural cooling and combination of compression and natural refrigeration reduce the cost of refrigeration, save energy and reduce consumption, and improve the energy efficiency of the unit.
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.
Claims (10)
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