A computer room air conditioning system

Abstract

The present invention belongs to the technical field of heat dissipation and cooling of computer rooms, and in particular, relates to a computer room air conditioning system, including: a support plate, an air conditioner, an external heat release device, an infusion main pipe, a return liquid main pipe and a cold plate coil, the support plate is used to place a cabinet, the air conditioner is arranged below the support plate, the air outlet of the air conditioner blows cold air to the cold air side, the infusion main pipe and the return liquid main pipe are both connected to the external heat release device to form a circulation flow path, the cold plate coil has a liquid inlet interface and a liquid outlet interface, and the cold plate coil is arranged on the cabinet; the air conditioner also has an air conditioning liquid inlet and an air conditioning liquid outlet, the air conditioning liquid inlet is connected to the infusion main pipe, the air conditioning liquid outlet is connected to the return liquid main pipe, the liquid inlet interface is connected to the infusion main pipe, and the liquid outlet interface is connected to the return liquid main pipe. The application of this technical solution solves the problem in the prior art that the heat in the computer room cannot be taken away in time, resulting in a high temperature in the computer room, which affects the normal and effective operation of the server.

Description

Technical Field

[0001] The invention belongs to the technical field of heat dissipation and cooling of a computer room, and in particular relates to an air conditioning system for a computer room. Background Art

[0002] At present, information technology is developing more and more, especially the development of Internet technology. The unprecedented development of network communication and big data has connected people through network data. In this way, in order to better realize data storage, the use of servers is indispensable. The servers are uniformly installed and arranged in the computer room. During the use of the servers, the servers will generate a lot of heat. Since the computer room is a closed computer room space, the heat cannot be naturally dissipated, and it is necessary to use technical means to assist in heat dissipation. In the prior art, air conditioning is used in the computer room to remove the heat generated by the server through cold air circulation to achieve heat dissipation and cooling. However, due to the unprecedented development of big data, the data required to be stored is getting larger and larger, and the server capacity is getting larger and larger. In this way, the number of servers required is also increasing, resulting in the heat in the computer room cannot be taken away in time, resulting in a high temperature in the computer room, affecting the normal and effective operation of the server. Summary of the invention

[0003] The purpose of the present invention is to provide a computer room air conditioning system, aiming to solve the problem in the prior art that the heat in the computer room cannot be taken away in time, resulting in a high temperature in the computer room, affecting the normal and effective operation of the server.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a computer room air conditioning system, comprising: a support plate, the support plate is used to place the cabinet; an air conditioner, the air conditioner is arranged under the support plate; the computer room air conditioning system also includes: an external heat release device; an infusion main pipe and a return liquid main pipe, the infusion main pipe and the return liquid main pipe are both connected to the external heat release device to form a circulation flow path, the infusion main pipe is used to provide cooling fluid, and the infusion main pipe and the return liquid main pipe both extend toward the air conditioner; a cold plate coil, the cold plate coil has a liquid inlet interface and a liquid outlet interface, the cold plate coil is arranged on the cabinet, the liquid inlet interface is connected to the infusion main pipe, and the liquid outlet interface is connected to the return liquid main pipe; the air conditioner also has an air conditioning liquid inlet and an air conditioning liquid outlet, the air conditioning liquid inlet is connected to the infusion main pipe, and the air conditioning liquid outlet is connected to the return liquid main pipe.

[0005] Optionally, the computer room air conditioning system also includes a first refrigerator, which is detachably mounted on the shell of the air conditioner and is located below the support plate. The first refrigerator has a first refrigeration liquid inlet, a first refrigeration liquid outlet and a first heat exchange flow path. The first refrigeration liquid inlet is connected to the liquid infusion main pipe, the first refrigeration liquid outlet is connected to the liquid return main pipe, the liquid outlet end of the first heat exchange flow path is connected to the liquid inlet interface, a water pump is provided between the liquid outlet end of the first heat exchange flow path and the liquid inlet interface, and the liquid inlet end of the first heat exchange flow path is connected to the liquid outlet interface.

[0006] Optionally, the air-conditioning liquid inlet and the air-conditioning liquid outlet are both arranged on the same side of the air conditioner, and the first refrigerator is externally mounted on the side of the air conditioner where the air-conditioning liquid inlet and the air-conditioning liquid outlet are arranged.

[0007] Optionally, the external heat release device also includes a cooling tower, which has a cooling tower inlet and a cooling tower outlet. The cooling tower outlet is connected to the liquid inlet end of the liquid infusion main pipe, and the cooling tower inlet is connected to the liquid outlet end of the return liquid main pipe. A valve A is provided between the cooling tower outlet and the liquid inlet end of the liquid infusion main pipe, a valve B is provided between the cooling tower inlet and the liquid outlet end of the return liquid main pipe, and a water pump is provided on the connecting pipeline between the cooling tower inlet and the liquid outlet end of the return liquid main pipe.

[0008] Optionally, a second refrigerator and a compressor are provided in the air conditioner, the second refrigerator having a second refrigeration liquid inlet, a second refrigeration liquid outlet and a second heat exchange flow path, the second refrigeration liquid inlet is connected to the liquid infusion main pipe, the second refrigeration liquid outlet is connected to the liquid return main pipe, the liquid outlet end of the second heat exchange flow path is connected to the evaporator inlet of the air conditioner, the liquid inlet end of the second heat exchange flow path is connected to the evaporator outlet of the air conditioner, and the compressor is arranged on the connecting pipeline between the liquid inlet end of the second heat exchange flow path and the evaporator outlet of the air conditioner.

[0009] Optionally, the external heat release equipment also includes a cooling tower and a water cooling unit, the cooling tower has a cooling tower inlet and a cooling tower outlet, the water cooling unit has a unit liquid inlet, a unit liquid outlet, a cooling liquid inlet and a cooling liquid outlet, the unit liquid outlet is connected to the liquid inlet end of the infusion main pipe, the unit liquid inlet is connected to the liquid outlet end of the return liquid main pipe, the cooling liquid inlet is connected to the cooling tower outlet, and the cooling liquid outlet is connected to the cooling tower inlet.

[0010] Optionally, a valve C is provided between the unit's liquid outlet and the liquid inlet end of the liquid transfer main pipe, a valve D is provided between the unit's liquid inlet and the liquid outlet end of the liquid return main pipe, a valve E is provided between the cooling tower outlet and the cooling liquid inlet, and a valve F is provided between the cooling tower inlet and the cooling liquid outlet.

[0011] Optionally, the cooling tower outlet is connected to the liquid inlet end of the liquid infusion main pipe, the cooling tower inlet is connected to the liquid outlet end of the liquid return main pipe, a valve A is provided between the cooling tower outlet and the liquid inlet end of the liquid infusion main pipe, and a valve B is provided between the cooling tower inlet and the liquid outlet end of the liquid return main pipe.

[0012] Optionally, the computer room air conditioning system also includes a control module, valve A, valve B, valve C, valve D, valve E and valve F are all electromagnetic control valves, the control modules are electrically connected to valve A, valve B, valve C, valve D, valve E and valve F, and the control module controls the operation of the air conditioner.

[0013] Optionally, a second refrigerator and a compressor are provided in the air conditioner, the second refrigerator having a second refrigeration liquid inlet, a second refrigeration liquid outlet and a second heat exchange flow path, the second refrigeration liquid inlet is connected to the liquid infusion main pipe, the second refrigeration liquid outlet is connected to the liquid return main pipe, the liquid outlet end of the second heat exchange flow path is connected to the evaporator inlet of the air conditioner, the liquid inlet end of the second heat exchange flow path is connected to the evaporator outlet of the air conditioner, and the compressor is arranged on the connecting pipeline between the liquid inlet end of the second heat exchange flow path and the evaporator outlet of the air conditioner.

[0014] The present invention has at least the following beneficial effects:

[0015] In the present invention, the heat dissipation and cooling of the cabinet are achieved simultaneously by using the air conditioner and the cold plate coil, which more effectively achieves the heat dissipation and cooling of the cabinet than the prior art, and can take away the retained heat in the computer room more promptly and quickly, so as to achieve the purpose of timely and quickly dissipating heat and cooling the computer room. Moreover, in the process of arranging the pipes of the air conditioner and the cold plate coil in parallel, the air conditioner and the cold plate coil can use the same refrigerant in parallel for heat exchange as a whole, which can simplify the overall pipe arrangement structure of the computer room air conditioning system while ensuring that the heat can be effectively taken away, and save the use of refrigerant and save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A schematic diagram of the assembly of a computer room air conditioning system according to an embodiment of the present invention;

[0018] Figure 2 A schematic diagram of the piping arrangement structure of a first embodiment of a computer room air conditioning system of the present invention;

[0019] Figure 3 A schematic diagram of the piping arrangement structure of a second embodiment of the computer room air conditioning system of the present invention;

[0020] Figure 4 A schematic diagram of the piping arrangement structure of a third embodiment of a computer room air conditioning system of the present invention;

[0021] Figure 5 A schematic diagram of the piping arrangement structure of a fourth embodiment of a computer room air conditioning system of the present invention;

[0022] Figure 6A schematic diagram of the piping arrangement structure of a fifth embodiment of a computer room air conditioning system of the present invention;

[0023] Figure 7 It is a schematic diagram of the pipeline arrangement structure of the sixth embodiment of the computer room air conditioning system of the present invention.

[0024] Among them, the reference numerals in the figure are:

[0025] 10. Cabinet; 100. Support plate; 101. Hot aisle; 102. Cold aisle; 103. Passage door; 20. Air conditioner; 21. Air inlet; 22. Air outlet; 23. Air conditioner liquid inlet; 24. Air conditioner liquid outlet; 31. Liquid infusion main pipe; 32. Liquid return main pipe; 310. Cooling tower; 311. Cooling tower inlet; 312. Cooling tower outlet; 320. Water cooling unit; 321. Unit liquid inlet; 322. Unit outlet Liquid port; 323, cooling liquid inlet; 324, cooling liquid outlet; 40, cold plate coil; 41, liquid inlet interface; 42, liquid outlet interface; 50, first refrigerator; 51, first refrigeration liquid inlet; 52, first refrigeration liquid outlet; 53, first heat exchange flow path; 61, valve A; 62, valve B; 63, valve C; 64, valve D; 65, valve E; 66, valve F; 301, second refrigerator; 302, compressor. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figure 1 and Figure 2As shown, the computer room air conditioning system provided by the first embodiment of the present invention includes a support plate 100, a plurality of cabinets 10 and a plurality of air conditioners 20, and the computer room air conditioning system also includes an external heat dissipation device and a cold plate coil 40. During the assembly and arrangement process, a plurality of cabinets 10 are placed on the support plate 100 (the support plate 100 is the floor of the computer room space) to form a plurality of rows, two adjacent rows of cabinets 10 and the ceiling and floor of the computer room space form a channel, and the channel openings formed between the two adjacent rows of cabinets 10 are provided with a sealed channel door 103, and the channels on both sides of a row of servers are respectively a hot channel 101 and a cold channel 102, that is, the hot channel 101 corresponds to the hot air side of the cabinet 10, and the cold channel 102 corresponds to the cold air side of the cabinet 10, wherein the two rows of cabinets 10 near the two side walls of the computer room space respectively form a hot channel 101 or a cold channel 102 with the wall. A plurality of air conditioners 20 are placed under the support plate 100 to form a plurality of rows, and one row of air conditioners 20 corresponds to one row of cabinets 10. In the specific configuration of the air path circulation process, the air conditioner 20 has an air inlet 21 and an air outlet 22. The air inlet 21 is connected to the hot channel 101, and the air outlet 22 is connected to the cold channel 102 (that is, the air inlet draws hot air from the hot air side, and the air outlet blows cold air to the cold air side). In this way, the cold air blown out of the air outlet 22 of the air conditioner 20 enters the cold channel 102, and then the cold air flows through the cabinet 10 to take away the heat, and the air flow flows into the hot channel 101. The hot air in the hot channel 101 is sucked by the air conditioner 20 and circulated from the air inlet 21 into the heat exchanger of the air conditioner 20 for circulating heat exchange, thereby forming cold air again and blowing it out from the air outlet 22. Furthermore, the computer room air conditioning system of the first embodiment also includes an infusion main pipe 31 and a return liquid main pipe 32. The infusion main pipe 31 is used to provide cooling fluid. The infusion main pipe 31 and the return liquid main pipe 32 both extend toward the air conditioner 20. The cold plate coil 40 has a liquid inlet interface 41 and a liquid outlet interface 42. The cold plate coil 40 is arranged on the cabinet 10. In this way, while the air conditioner 20 is used to blow cold air to the cabinet 10 for cooling, the cold plate coil 40 is used to achieve secondary heat dissipation and cooling, which is more conducive to the heat dissipation and cooling effect of the entire computer room air conditioning system. Among them, the air conditioner 20 also has an air conditioning liquid inlet 23 and an air conditioning liquid outlet 24. The air conditioning liquid inlet 23 is connected to the infusion main pipe 31, the air conditioning liquid outlet 24 is connected to the return liquid main pipe 32, the liquid inlet interface 41 is connected to the infusion main pipe 31, and the liquid outlet interface 42 is connected to the return liquid main pipe 32. In this way, a parallel relationship is formed between the air conditioner 20 and the cold plate coil 40, which are connected to the infusion main pipe 31 and the return liquid main pipe 32, that is, the air conditioner 20 and the cold plate coil 40 use the same refrigerant in parallel to perform heat exchange work to take away heat and achieve heat dissipation and cooling.

[0031] In the present invention, heat dissipation and cooling of the cabinet 10 are achieved simultaneously by using the air conditioner 20 and the cold plate coil 40. Compared with the prior art, heat dissipation and cooling of the cabinet 10 are achieved more effectively, and the heat retained in the computer room can be taken away more promptly and quickly, so as to achieve the purpose of timely and quickly dissipating heat and cooling the computer room. In addition, in the process of arranging the pipes of the computer room air conditioning system, the pipes between the air conditioner 20 and the cold plate coil 40 are connected in parallel, so that the air conditioner 20 and the cold plate coil 40 can be connected in parallel and use the same refrigerant as a whole for heat exchange. While ensuring that the heat can be effectively taken away, the overall pipe arrangement structure of the computer room air conditioning system is simplified, and the use of refrigerant is saved, thereby saving costs.

[0032] In order to be able to dissipate heat and cool down more effectively according to the heat temperature of the cabinet 10, on the basis of always keeping the air conditioner 20 working normally for heat dissipation and cooling, the heat exchange efficiency of the first refrigerator 50 is adjusted to achieve the purpose of heat dissipation and cooling of the overall adjustment system. Specifically, a regulating valve (not shown) for adjusting the flow rate and flow rate of the refrigerant is provided on the connecting pipeline between the first refrigeration liquid inlet 51 and the infusion main pipe 31. When the heat temperature of the cabinet 10 is low, the regulating valve is closed to reduce the refrigerant flowing to the first refrigerator 50 for heat exchange. At this time, only the air conditioner 20 can meet the requirements of heat dissipation and cooling of the cabinet 10; when the heat temperature of the cabinet 10 is high (the cabinet 10 generates a large amount of heat and the temperature rises rapidly), the regulating valve is opened to provide a large amount of refrigerant to the first refrigerator 50 to improve the heat exchange efficiency of the first refrigerator 50, so that the first refrigerator 50 can take away more heat from the cabinet 10.

[0033] In the first embodiment, the computer room air conditioning system further includes a first refrigerator 50, which is detachably mounted on the housing of the air conditioner 20, and the first refrigerator 50 and the air conditioner 20 are located below the support plate 100. Specifically, the first refrigerator 50 has a first refrigeration liquid inlet 51, a first refrigeration liquid outlet 52 and a first heat exchange flow path 53. The first refrigeration liquid inlet 51 is connected to the liquid infusion main pipe 31, the first refrigeration liquid outlet 52 is connected to the liquid return main pipe 32, the liquid outlet end of the first heat exchange flow path 53 is connected to the liquid inlet interface 41, and the liquid inlet end of the first heat exchange flow path 53 is connected to the liquid outlet interface 42. By setting the first refrigerator 50, the cold plate coil 40 and the first refrigerator 50 form a secondary cooling cycle independent of the air conditioner 20, and the heat exchange between the cold plate coil 40 and the cabinet 10 is carried out by the refrigerant delivered by the liquid infusion main pipe 31, thereby more effectively achieving heat dissipation and cooling.

[0034] The first refrigerator 50 can be installed in the system as an optional module. In the installation process, in order to shorten the length of the connecting pipeline, the air conditioning liquid inlet 23 and the air conditioning liquid outlet 24 are both set on the same side of the air conditioner 20, and the first refrigerator 50 is hung on the side of the air conditioner 20 where the air conditioning liquid inlet 23 and the air conditioning liquid outlet 24 are set, and the first refrigeration liquid inlet 51 and the first refrigeration liquid outlet 52 of the first refrigerator 50 are both set on the same side of the first refrigerator 50, and then, the pipeline connected from the first refrigeration liquid inlet 51 is connected to the air conditioning liquid outlet 24, and the pipeline connected from the first refrigeration liquid outlet 52 is connected to the return liquid main pipe 32. In this way, whether the first refrigerator 50 as an optional module is installed in the system or not, it does not affect the relative position between the air conditioner 20 and the infusion main pipe 31 and the return liquid main pipe 32, which is convenient for installation.

[0035] like Figure 2 As shown, in the computer room air conditioning system of the first embodiment, the external heat release device specifically uses a cooling tower 310 to store refrigerant and realize circulation. In the present invention, water is used as the refrigerant. The cooling tower 310 provides circulating refrigerant water to the pipeline of the computer room air conditioning system, and heat exchange is realized by the circulating water flowing in the air conditioner 20 and the cold plate coil 40. In the specific assembly process, the cooling tower 310 is placed outside the computer room space. The cooling tower 310 has a cooling tower inlet 311 and a cooling tower outlet 312. The cooling tower outlet 312 is connected to the liquid inlet end of the liquid infusion main pipe 31, and the cooling tower inlet 311 is connected to the liquid outlet end of the liquid return main pipe 32. Using water as the refrigerant can effectively save costs and is conducive to the popularization of the computer room air conditioning system.

[0036] Furthermore, in the computer room air conditioning system of the first embodiment, a valve A61 is provided between the cooling tower outlet 312 and the liquid inlet end of the liquid delivery main pipe 31, and a valve B62 is provided between the cooling tower inlet 311 and the liquid outlet end of the liquid return main pipe 32. In this way, the cooling tower 310 and the pipeline in the computer room air conditioning system can be connected and disconnected through the valve A61 and the valve B62. When the air conditioner 20 or the cold plate coil 40 needs to be maintained or replaced, the circulating water is cut off by closing the valve A61 and the valve B62, and then the maintenance and replacement work is carried out. At this time, the circulating water no longer flows into the computer room space, which is convenient for work.

[0037] like Figure 2 As shown, a water pump is provided on the cooling tower 310 and the liquid return main pipe 32, and a water pump is provided on the connecting pipeline between the liquid outlet end of the first heat exchange flow path 53 and the liquid inlet interface 41, and the water pump is used to provide circulating water flow power.

[0038] In the first embodiment, the cooling tower 310 inputs coolant into the air conditioner 20 for heat exchange to remove heat, so the air conditioner 20 in the first embodiment directly uses coolant to achieve heat exchange and cooling (no compressor is required in the air conditioner 20).

[0039] In the first embodiment, in order to realize the overall automatic monitoring and control, the control module is used to realize the control of valve A61, valve B62, and air conditioner 20, and realize the intelligent automatic control of the computer room air conditioning system. Among them, the control module can be any control system that can realize intelligent Internet of Things control, which is already popular in the prior art, so it will not be repeated here.

[0040] like Figure 3 , which shows a schematic diagram of the pipeline arrangement structure of the second embodiment of the present invention. Compared with the computer room air conditioning system of the first embodiment, the computer room air conditioning system of the second embodiment has the following differences.

[0041] In the computer room air conditioning system of the second embodiment, a second refrigerator 301 and a compressor 302 are provided in the air conditioner 20. The second refrigerator 301 has a second refrigeration liquid inlet, a second refrigeration liquid outlet and a second heat exchange flow path. The second refrigeration liquid inlet is connected to the liquid infusion main pipe 31, and the second refrigeration liquid outlet is connected to the liquid return main pipe 32. The liquid outlet end of the second heat exchange flow path is connected to the evaporator inlet of the air conditioner 20, and the coolant output by the cooling tower 310 flows through the second refrigerator 301 for heat exchange. In addition, the liquid inlet end of the second heat exchange flow path is connected to the evaporator outlet of the air conditioner 20, and the compressor 302 is arranged on the connecting pipeline between the liquid inlet end of the second heat exchange flow path and the evaporator outlet of the air conditioner 20. The compressor 302 compresses the refrigerant fluid in the second heat exchange flow path, and transmits it to the evaporator of the air conditioner 20 for cooling, and then flows back to the second refrigerator 301 to exchange heat with the coolant delivered by the cooling tower 310, and the coolant takes away the heat, thereby achieving heat dissipation and cooling.

[0042] In the present application, the first refrigerator 50 and the second refrigerator 301 can be plate heat exchangers, or shell and tube heat exchangers, or tank heat exchangers, etc. The cooling tower 310 can be a water-cooled cooling tower, an air-cooled cooling tower, or a cooling tower that uses other refrigerant media for heat exchange.

[0043] Furthermore, a flow regulating valve may be provided on the connecting pipeline between the liquid infusion main pipe 31 and the second refrigeration liquid inlet, so as to adjust the refrigeration output according to the demand of the air conditioner 20 to achieve the purpose of saving energy consumption.

[0044] Compared with the first embodiment, the second embodiment has the same structures except for the above structures, and thus will not be described in detail here.

[0045] like Figure 4As shown, it shows a schematic diagram of the pipeline arrangement structure of the third embodiment of the present invention. Compared with the computer room air conditioning system of the first embodiment, the computer room air conditioning system of the third embodiment has the following differences.

[0046] In the computer room air conditioning system of the third embodiment, the external heat release device specifically uses a cooling tower 310 and a water cooling unit 320 at the same time, wherein the cooling tower 310 is mainly responsible for dissipating heat and cooling the water cooling unit 320, while the water cooling unit 320 provides circulating cooling water to the pipeline in the computer room air conditioning system to dissipate heat and cool the cabinet 10. In the specific assembly process, the cooling tower 310 has a cooling tower inlet 311 and a cooling tower outlet 312, and the water cooling unit 320 has a unit liquid inlet 321, a unit liquid outlet 322, a cooling liquid inlet 323 and a cooling liquid outlet 324, the unit liquid outlet 322 is connected to the liquid inlet end of the liquid infusion main pipe 31, the unit liquid inlet 321 is connected to the liquid outlet end of the liquid return main pipe 32, the cooling liquid inlet 323 is connected to the cooling tower outlet 312, and the cooling liquid outlet 324 is connected to the cooling tower inlet 311.

[0047] Furthermore, a valve C63 is provided between the unit liquid outlet 322 and the liquid inlet end of the liquid infusion main pipe 31, a valve D64 is provided between the unit liquid inlet 321 and the liquid outlet end of the return liquid main pipe 32, a valve E65 is provided between the cooling tower outlet 312 and the cooling liquid inlet 323, and a valve F66 is provided between the cooling tower inlet 311 and the cooling liquid outlet 324. The cooling tower 310 and the pipeline in the machine room air conditioning system are connected and disconnected by valves C63 and D64. When the air conditioner 20 or the cold plate coil 40 needs to be maintained or replaced, the circulating water is cut off by closing valves C63 and D64, and then the maintenance and replacement work is carried out. At this time, the circulating water no longer flows into the machine room space, which is convenient for work. The pipe between the cooling tower 310 and the water cooling unit 320 is opened and closed by valve E65 and valve F66. When the water cooling unit 320 needs to be maintained or replaced, the circulating water is cut off by closing valve E65 and valve F66, and then the maintenance or replacement work is carried out. Correspondingly, the control module is also electrically connected to valve C63, valve D64, valve E65 and valve F66 to realize intelligent automatic control.

[0048] like Figure 4 As shown, a pump is provided on the liquid return main pipe 32 of the cooling tower 310, and a water pump is provided on the connecting pipeline between the liquid outlet end of the first heat exchange flow path 53 and the liquid inlet interface 41. The pump is used to provide circulating water flow power, and a pump is also provided on the connecting pipeline between the water cooling unit and the liquid return main pipe to provide output and reflux power for the circulating water.

[0049] Compared with the first embodiment, the third embodiment has the same structures except for the above structures, and thus will not be described in detail here.

[0050] like Figure 5 , which shows a schematic diagram of the piping arrangement structure of the computer room air conditioning system of the fourth embodiment of the present invention. Compared with the computer room air conditioning system of the third embodiment, the computer room air conditioning system of the fourth embodiment has the following differences.

[0051] In the machine room air conditioning system of the fourth embodiment, a second refrigerator 301 and a compressor 302 are provided in the air conditioner 20. The second refrigerator 301 has a second refrigeration liquid inlet, a second refrigeration liquid outlet and a second heat exchange flow path. The second refrigeration liquid inlet is connected to the liquid delivery main pipe 31, and the second refrigeration liquid outlet is connected to the liquid return main pipe 32. The liquid outlet end of the second heat exchange flow path is connected to the evaporator inlet of the air conditioner 20, and the coolant output by the cooling tower 310 flows through the second refrigerator 301 for heat exchange. In addition, the liquid inlet end of the second heat exchange flow path is connected to the evaporator outlet of the air conditioner 20, and the compressor 302 is arranged on the connecting pipeline between the liquid inlet end of the second heat exchange flow path and the evaporator outlet of the air conditioner 20. The compressor 302 compresses the refrigerant fluid in the second heat exchange flow path, and delivers it to the evaporator of the air conditioner 20 for cooling, and then flows back to the second refrigerator 301 to exchange heat with the coolant delivered by the cooling tower 310, and the coolant takes away the heat, thereby achieving heat dissipation and cooling.

[0052] Furthermore, a flow regulating valve may be provided on the connecting pipeline between the liquid infusion main pipe 31 and the second refrigeration liquid inlet, so as to adjust the refrigeration output according to the demand of the air conditioner 20 to achieve the purpose of saving energy consumption.

[0053] Compared with the third embodiment, the fourth embodiment has the same structures except for the above structures, and thus will not be described in detail here.

[0054] like Figure 6 , which shows a schematic diagram of the piping arrangement structure of the computer room air conditioning system of the fifth embodiment of the present invention. Compared with the computer room air conditioning system of the third embodiment, the computer room air conditioning system of the fifth embodiment has the following differences.

[0055] In the computer room air conditioning system of the fifth embodiment, the cooling tower outlet 312 is connected to the liquid inlet end of the liquid infusion main pipe 31, and the cooling tower inlet 311 is connected to the liquid outlet end of the return liquid main pipe 32. A valve A61 is provided between the cooling tower outlet 312 and the liquid inlet end of the liquid infusion main pipe 31, and a valve B62 is provided between the cooling tower inlet 311 and the liquid outlet end of the return liquid main pipe 32. In this way, the cooling tower 310 and the water cooling unit 320 can be turned on and off by the valve A61 and the valve B62. When the water cooling unit 320 needs to be maintained, the circulating water can be cut off by closing the valve A61 and the valve B62. A valve E65 is provided between the cooling tower outlet 312 and the cooling liquid inlet 323, and a valve F66 is provided between the cooling tower inlet 311 and the cooling liquid outlet 324. By controlling valves E65, F66, C63 and D64, wherein valves E65 and F66 are turned on and off at the same time, and valves C63 and D64 are turned on and off at the same time, the switching of the pipeline connection between the cooling tower 310 and the computer room air conditioning system and the pipeline connection between the water cooling unit 320 and the computer room air conditioning system can be achieved.

[0056] When the cooling tower 310 is switched to be connected to the pipeline of the machine room air conditioning system, valve A61 and valve B62 are opened at the same time, and valve C63, valve D64, valve E65, and valve F66 are closed at the same time.

[0057] In order to further realize automatic control, the computer room air conditioning system of the fourth embodiment also includes a control module. Valve A61, valve B62, valve C63, valve D64, valve E65 and valve F66 are all electromagnetic control valves. The control modules are electrically connected to valve A61, valve B62, valve C63, valve D64, valve E65 and valve F66, and the control module controls the operation of the air conditioner 20.

[0058] In summary, the fifth embodiment is similar to the third embodiment in structure except for the above structure differences, and thus will not be described in detail herein.

[0059] like Figure 7 , which shows a schematic diagram of the piping arrangement structure of the computer room air conditioning system of the sixth embodiment of the present invention. Compared with the computer room air conditioning system of the fifth embodiment, the computer room air conditioning system of the sixth embodiment has the following differences.

[0060] In the sixth embodiment, the air conditioner 20 is provided with a second refrigerator 301 and a compressor 302. The second refrigerator 301 has a second refrigeration liquid inlet, a second refrigeration liquid outlet and a second heat exchange flow path. The second refrigeration liquid inlet is connected to the liquid delivery main pipe 31, the second refrigeration liquid outlet is connected to the liquid return main pipe 32, the liquid outlet end of the second heat exchange flow path is connected to the evaporator inlet of the air conditioner 20, and the coolant output by the cooling tower 310 flows through the second refrigerator 301 for heat exchange. In addition, the liquid inlet end of the second heat exchange flow path is connected to the evaporator outlet of the air conditioner 20, and the compressor 302 is arranged on the connecting pipeline between the liquid inlet end of the second heat exchange flow path and the evaporator outlet of the air conditioner 20. The compressor 302 compresses the refrigerant fluid in the second heat exchange flow path, and delivers it to the evaporator of the air conditioner 20 for cooling, and then flows back to the second refrigerator 301 to exchange heat with the coolant delivered by the cooling tower 310, and the coolant takes away the heat, thereby achieving heat dissipation and cooling.

[0061] Furthermore, a flow regulating valve may be provided on the connecting pipeline between the liquid infusion main pipe 31 and the second refrigeration liquid inlet, so as to adjust the refrigeration output according to the demand of the air conditioner 20 to achieve the purpose of saving energy consumption.

[0062] In summary, the sixth embodiment is similar to the fifth embodiment in structure except for the above structure differences, and thus will not be described in detail herein.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A computer room air conditioning system, comprising: A support plate, wherein the support plate is used to place the cabinet; An air conditioner, the air conditioner being arranged below the supporting plate; Characterized in that the computer room air conditioning system also includes: External heat release equipment; a liquid infusion main pipe and a liquid return main pipe, wherein the liquid infusion main pipe and the liquid return main pipe are both connected to the external heat release device to form a circulation flow path, the liquid infusion main pipe is used to provide cooling fluid, and the liquid infusion main pipe and the liquid return main pipe both extend toward the air conditioner; A cold plate coil, wherein the cold plate coil has a liquid inlet interface and a liquid outlet interface, the cold plate coil is arranged on the cabinet, the liquid inlet interface is connected to the liquid infusion main pipe, and the liquid outlet interface is connected to the liquid return main pipe; The air conditioner also has an air conditioning liquid inlet and an air conditioning liquid outlet, the air conditioning liquid inlet is connected to the liquid infusion main pipe, and the air conditioning liquid outlet is connected to the liquid return main pipe; The external heat release device also includes a cooling tower, the cooling tower has a cooling tower inlet and a cooling tower outlet, the cooling tower outlet is connected to the liquid inlet end of the liquid infusion main pipe, the cooling tower inlet is connected to the liquid outlet end of the liquid return main pipe, a valve A is provided between the cooling tower outlet and the liquid inlet end of the liquid infusion main pipe, a valve B is provided between the cooling tower inlet and the liquid outlet end of the liquid return main pipe, and a water pump is provided on the connecting pipeline between the cooling tower inlet and the liquid outlet end of the liquid return main pipe; The computer room air conditioning system further includes a first refrigerator, the first refrigerator having a first refrigeration liquid inlet, a first refrigeration liquid outlet and a first heat exchange flow path, the first refrigeration liquid inlet is connected to the liquid infusion main pipe, the first refrigeration liquid outlet is connected to the liquid return main pipe, the liquid outlet end of the first heat exchange flow path is connected to the liquid inlet interface, and the liquid inlet end of the first heat exchange flow path is connected to the liquid outlet interface; The air conditioner is provided with a second refrigerator and a compressor, the second refrigerator has a second refrigeration liquid inlet, a second refrigeration liquid outlet and a second heat exchange flow path, the second refrigeration liquid inlet is connected to the liquid infusion main pipe, the second refrigeration liquid outlet is connected to the liquid return main pipe, the liquid outlet end of the second heat exchange flow path is connected to the evaporator inlet of the air conditioner, the liquid inlet end of the second heat exchange flow path is connected to the evaporator outlet of the air conditioner, and the compressor is arranged on the connecting pipeline between the liquid inlet end of the second heat exchange flow path and the evaporator outlet of the air conditioner.

2. The computer room air conditioning system according to claim 1, characterized in that: The first refrigerator is detachably mounted on the housing of the air conditioner, and the first refrigerator is located below the support plate. A water pump is provided between the liquid outlet of the first heat exchange flow path and the liquid inlet interface.

3. The computer room air conditioning system according to claim 2, characterized in that: The air-conditioning liquid inlet and the air-conditioning liquid outlet are both arranged on the same side of the air conditioner, and the first refrigerator is externally mounted on the side of the air conditioner where the air-conditioning liquid inlet and the air-conditioning liquid outlet are arranged.

4. The computer room air conditioning system according to claim 3, characterized in that: The external heat release equipment also includes a cooling tower and a water cooling unit. The cooling tower has a cooling tower inlet and a cooling tower outlet. The water cooling unit has a unit liquid inlet, a unit liquid outlet, a cooling liquid inlet and a cooling liquid outlet. The unit liquid outlet is connected to the liquid inlet end of the liquid infusion main pipe, the unit liquid inlet is connected to the liquid outlet end of the return liquid main pipe, the cooling liquid inlet is connected to the cooling tower outlet, and the cooling liquid outlet is connected to the cooling tower inlet.

5. The computer room air conditioning system according to claim 4, characterized in that: A valve C is provided between the liquid outlet of the unit and the liquid inlet end of the liquid transfer main pipe, a valve D is provided between the liquid inlet of the unit and the liquid outlet end of the return liquid main pipe, a valve E is provided between the cooling tower outlet and the cooling liquid inlet, and a valve F is provided between the cooling tower inlet and the cooling liquid outlet.

6. The computer room air conditioning system according to claim 5, characterized in that: The cooling tower outlet is connected to the liquid inlet end of the liquid transfer main pipe, the cooling tower inlet is connected to the liquid outlet end of the liquid return main pipe, a valve A is provided between the cooling tower outlet and the liquid inlet end of the liquid transfer main pipe, and a valve B is provided between the cooling tower inlet and the liquid outlet end of the liquid return main pipe.

7. The computer room air conditioning system according to claim 6, characterized in that: The computer room air conditioning system also includes a control module. The valve A, the valve B, the valve C, the valve D, the valve E and the valve F are all electromagnetic control valves. The control modules are electrically connected to the valve A, the valve B, the valve C, the valve D, the valve E and the valve F, and the control module controls the operation of the air conditioner.

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