CN114390850A - Machine room air conditioning system - Google Patents

Abstract

The invention belongs to the technical field of heat dissipation and cooling of a machine room, and particularly relates to a machine room air conditioning system, which comprises: the air conditioner is arranged below the supporting plate, an air outlet of the air conditioner blows cold air to the cold air side, the main infusion pipe and the main liquid return pipe are communicated with the external heat releasing equipment to form a circulating flow path, the cold plate coil is provided with a liquid inlet interface and a liquid outlet interface, and the cold plate coil is arranged on the cabinet; the air conditioner is also provided with an air conditioner liquid inlet and an air conditioner liquid outlet, the air conditioner liquid inlet is communicated with the liquid conveying main pipe, the air conditioner liquid outlet is communicated with the liquid returning main pipe, the liquid inlet interface is communicated with the liquid conveying main pipe, and the liquid outlet interface is communicated with the liquid returning main pipe. By the technical scheme, the problem that heat in the machine room cannot be taken away in time in the prior art, so that the temperature in the machine room is high, and normal and effective work of the server is influenced is solved.

Description

Machine room air conditioning system

Technical Field

The invention belongs to the technical field of heat dissipation and cooling of a machine room, and particularly relates to a machine room air conditioning system.

Background

At present, the development of information technology, especially the development of internet technology, and the unprecedented development of network communication and big data enable people to be connected together through network data. Thus, the use of a server is essential for better data storage. The servers are uniformly arranged in the machine room, and can generate a large amount of heat in the use process of the servers, and the heat cannot be naturally dissipated because the machine room is a closed machine room space, and the heat dissipation needs to be assisted by using technical means. In prior art, use the air conditioner at the computer lab and take away the heat that the server produced through cold wind circulation and realize the cooling of dispelling the heat, however, because the unprecedented development of big data, the data of required storage is bigger and bigger with the server capacity, like this, required server quantity is just also more and more, leads to the heat in the computer lab can't in time be taken away and lead to the computer lab in the temperature higher, influence the server normal, effectively work.

Disclosure of Invention

The invention aims to provide a machine room air conditioning system, and aims to solve the problems that in the prior art, heat in a machine room cannot be taken away in time, so that the temperature in the machine room is high, and normal and effective work of a server is influenced.

In order to achieve the purpose, the invention adopts the technical scheme that: a machine room air conditioning system comprising: the supporting plate is used for placing the cabinet; the air conditioner is arranged below the supporting plate; the machine room air conditioning system further includes: an external heat-emitting device; the air conditioner comprises a main liquid conveying pipe and a main liquid returning pipe, wherein the main liquid conveying pipe and the main liquid returning pipe are both communicated with external heat release equipment to form a circulating flow path, the main liquid conveying pipe is used for providing cooling fluid, and the main liquid conveying pipe and the main liquid returning pipe both extend to the air conditioner; the cold plate coil is provided with a liquid inlet interface and a liquid outlet interface, the cold plate coil is arranged on the machine cabinet, the liquid inlet interface is communicated with the infusion main pipe, and the liquid outlet interface is communicated with the liquid return main pipe; the air conditioner is also provided with an air conditioner liquid inlet and an air conditioner liquid outlet, the air conditioner liquid inlet is communicated with the liquid conveying main pipe, and the air conditioner liquid outlet is communicated with the liquid returning main pipe.

Optionally, the air conditioning system in the machine room further includes a first refrigerator, the first refrigerator is detachably hung on the housing of the air conditioner, the first refrigerator is located below the supporting plate, the first refrigerator is provided with a first refrigeration liquid inlet, a first refrigeration liquid outlet and a first heat exchange flow path, the first refrigeration liquid inlet is communicated with the liquid conveying main pipe, the first refrigeration liquid outlet is communicated with the liquid returning main pipe, the liquid outlet end of the first heat exchange flow path is communicated with the liquid inlet interface, a water pump is arranged 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 communicated with the liquid outlet interface.

Optionally, the air conditioner liquid inlet and the air conditioner liquid outlet are both arranged on the same side of the air conditioner, and the first refrigerator is externally hung on the side of the air conditioner, where the air conditioner liquid inlet and the air conditioner liquid outlet are arranged.

Optionally, the external heat releasing device further comprises a cooling tower, the cooling tower has a cooling tower inlet and a cooling tower outlet, the cooling tower outlet is communicated with the liquid inlet end of the liquid feeding main pipe, the cooling tower inlet is communicated with the liquid outlet end of the liquid returning main pipe, a valve a is arranged between the cooling tower outlet and the liquid inlet end of the liquid feeding main pipe, a valve B is arranged between the cooling tower inlet and the liquid outlet end of the liquid returning main pipe, and a water pump is arranged on a connecting pipeline between the cooling tower inlet and the liquid outlet end of the liquid returning main pipe.

Optionally, a second refrigerator and a compressor are arranged in the air conditioner, the second refrigerator is provided with a second refrigeration liquid inlet, a second refrigeration liquid outlet and a second heat exchange flow path, the second refrigeration liquid inlet is communicated with the liquid conveying main pipe, the second refrigeration liquid outlet is communicated with the liquid return main pipe, the liquid outlet end of the second heat exchange flow path is communicated with the evaporator inlet of the air conditioner, the liquid inlet end of the second heat exchange flow path is communicated with the evaporator outlet of the air conditioner, and the compressor is arranged on a connecting pipeline between the liquid inlet end of the second heat exchange flow path and the evaporator outlet of the air conditioner.

Optionally, the external heat release equipment further comprises a cooling tower and a water cooling unit, the cooling tower is provided with a cooling tower inlet and a cooling tower outlet, the water cooling unit is provided with a unit liquid inlet, a unit liquid outlet, a cooling liquid inlet and a cooling liquid outlet, the unit liquid outlet is communicated with the liquid inlet end of the infusion header pipe, the unit liquid inlet is communicated with the liquid outlet end of the liquid return header pipe, the cooling liquid inlet is communicated with the cooling tower outlet, and the cooling liquid outlet is communicated with the cooling tower inlet.

Optionally, a valve C is arranged between the liquid outlet of the unit and the liquid inlet end of the liquid feeding main pipe, a valve D is arranged between the liquid inlet of the unit and the liquid outlet end of the liquid returning main pipe, a valve E is arranged between the outlet of the cooling tower and the cooling liquid inlet, and a valve F is arranged between the inlet of the cooling tower and the cooling liquid outlet.

Optionally, the outlet of the cooling tower is communicated with the liquid inlet end of the liquid feeding main pipe, the inlet of the cooling tower is communicated with the liquid outlet end of the liquid returning main pipe, a valve a is arranged between the outlet of the cooling tower and the liquid inlet end of the liquid feeding main pipe, and a valve B is arranged between the inlet of the cooling tower and the liquid outlet end of the liquid returning main pipe.

Optionally, the air conditioning system in the machine room further 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 module is 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 air conditioner to operate.

Optionally, a second refrigerator and a compressor are arranged in the air conditioner, the second refrigerator is provided with a second refrigeration liquid inlet, a second refrigeration liquid outlet and a second heat exchange flow path, the second refrigeration liquid inlet is communicated with the liquid conveying main pipe, the second refrigeration liquid outlet is communicated with the liquid return main pipe, the liquid outlet end of the second heat exchange flow path is communicated with the evaporator inlet of the air conditioner, the liquid inlet end of the second heat exchange flow path is communicated with the evaporator outlet of the air conditioner, and the compressor is arranged on a connecting pipeline between the liquid inlet end of the second heat exchange flow path and the evaporator outlet of the air conditioner.

The invention has at least the following beneficial effects:

in the invention, the cabinet is cooled by using the air conditioner and the cold plate coil simultaneously, compared with the prior art, the cabinet is cooled more effectively, the heat staying in the machine room can be taken away more timely and quickly, and the aim of cooling the machine room in a timely and quick way is fulfilled.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a simplified schematic assembly diagram of a computer room air conditioning system according to an embodiment of the present invention;

fig. 2 is a schematic view of a piping arrangement of a first embodiment of a machine room air conditioning system of the present invention;

fig. 3 is a schematic view of a piping arrangement of a second embodiment of the machine room air conditioning system of the present invention;

fig. 4 is a schematic view of a piping arrangement of a third embodiment of the machine room air conditioning system of the present invention;

fig. 5 is a schematic view of a piping arrangement of a fourth embodiment of the machine room air conditioning system of the present invention;

fig. 6 is a schematic view of a piping arrangement of a fifth embodiment of the machine room air conditioning system of the present invention;

fig. 7 is a schematic diagram of a piping arrangement structure of a sixth embodiment of the air conditioning system of the machine room of the present invention.

Wherein, in the figures, the respective reference numerals:

10. a cabinet; 100. a support plate; 101. a hot aisle; 102. a cold aisle; 103. an access door; 20. an air conditioner; 21. an air inlet; 22. an air outlet; 23. a liquid inlet of an air conditioner; 24. an air conditioner liquid outlet; 31. a main infusion pipe; 32. a liquid return header pipe; 310. a cooling tower; 311. an inlet of a cooling tower; 312. an outlet of the cooling tower; 320. a water cooling unit; 321. a liquid inlet of the unit; 322. a unit liquid outlet; 323. cooling the liquid inlet; 324. a cooling liquid outlet; 40. a cold plate coil; 41. a liquid inlet interface; 42. a liquid outlet interface; 50. a first refrigerator; 51. a first refrigeration liquid inlet; 52. a first refrigeration liquid outlet; 53. a first heat exchange flow path; 61. a valve A; 62. a valve B; 63. a valve C; 64. a valve D; 65. a valve E; 66. a valve F; 301. a second refrigerator; 302. a compressor.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 and 2, the air conditioning system for a room according to 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 further includes external heat releasing equipment and a cold plate coil 40. In the assembling and arranging process, a plurality of cabinets 10 are placed on a supporting plate 100 (the supporting plate 100 is a floor of a machine room space) to form a plurality of rows, two adjacent rows of cabinets 10 and a ceiling and a floor of the machine room space form a channel, a closed channel door 103 is arranged at a channel port of the channel formed between the two adjacent rows of cabinets 10, the channels at two sides of one row of servers are respectively a hot channel 101 and a cold channel 102, that is, the hot channel 101 corresponds to a hot air side of the cabinet 10, the cold channel 102 corresponds to a cold air side of the cabinet 10, wherein the hot channel 101 or the cold channel 102 is formed between the two rows of cabinets 10 close to two side walls of the machine room space and the wall. A plurality of air conditioners 20 are placed below the support plate 100 in a plurality of rows, and one row of air conditioners 20 corresponds to one row of the cabinet 10. In the specific configuration air path circulation process, the air conditioner 20 has an air inlet 21 and an air outlet 22, the air inlet 21 is communicated with the hot channel 101, and the air outlet 22 is communicated with the cold channel 102 (that is, the air inlet draws hot air on the hot air side, and the air outlet blows cold air to the cold air side), so that the cold air blown from the air outlet 22 of the air conditioner 20 enters the cold channel 102, the cold air flows through the cabinet 10 to take away heat, 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 circularly enters the heat exchanger of the air conditioner 20 from the air inlet 21 to perform circular heat exchange, so that the cold air is formed again and blown out from the air outlet 22. Further, the computer lab air conditioning system of first embodiment still includes infusion house steward 31 and liquid return house steward 32, infusion house steward 31 is used for providing cooling fluid, infusion house steward 31 all extends to air conditioner 20 with liquid return house steward 32, cold drawing coil 40 has feed liquor interface 41 and goes out liquid interface 42, cold drawing coil 40 sets up on rack 10, thus, when utilizing air conditioner 20 to blow cold wind to rack 10 and cool down, utilize cold drawing coil 40 to realize the secondary heat dissipation cooling, be favorable to whole computer lab air conditioning system's heat dissipation cooling effect more. The air conditioner 20 further comprises an air conditioner liquid inlet 23 and an air conditioner liquid outlet 24, the air conditioner liquid inlet 23 is communicated with the liquid conveying main pipe 31, the air conditioner liquid outlet 24 is communicated with the liquid returning main pipe 32, the liquid inlet interface 41 is communicated with the liquid conveying main pipe 31, and the liquid outlet interface 42 is communicated with the liquid returning main pipe 32, so that a parallel relation is formed between the air conditioner 20 and the cold plate coil 40 and is connected to the liquid conveying main pipe 31 and the liquid returning main pipe 32, namely the air conditioner 20 and the cold plate coil 40 use the same refrigerating fluid in parallel to perform heat exchange work to take away heat to realize heat dissipation and cooling.

In the invention, the cabinet 10 is cooled by using the air conditioner 20 and the cold plate coil 40 simultaneously, compared with the prior art, the cabinet 10 is cooled more effectively, the heat staying in the machine room can be taken away more timely and quickly, and the purpose of cooling the machine room in time and quickly is achieved.

In order to perform more effective heat dissipation and cooling according to the heat temperature of the cabinet 10, on the basis of always keeping the air conditioner 20 working normally to perform heat dissipation and cooling, the heat exchange efficiency of the first refrigerator 50 is adjusted, so as to achieve the purpose of heat dissipation and cooling of the whole adjusting system. Specifically, a regulating valve (not shown) for regulating the flow rate and flow velocity of the refrigerant is provided in a connection line between the first refrigerant inlet 51 and the feed line header 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, and at this time, only the air conditioner 20 can meet the requirements of heat dissipation and temperature reduction of the cabinet 10; when the heat temperature of cabinet 10 is high (cabinet 10 generates a large amount of heat, and the temperature rises quickly), then the adjustment valve is opened to supply a large amount of refrigerant liquid to first refrigerator 50 to improve the heat exchange efficiency of first refrigerator 50, so that first refrigerator 50 can take away more heat of cabinet 10.

In the first embodiment, the machine room air conditioning system further includes the first refrigerator 50, the first refrigerator 50 is detachably hung on the housing of the air conditioner 20, and the first refrigerator 50 is located below the support plate 100 together with the air conditioner 20. Specifically, the first refrigerator 50 has a first refrigeration inlet 51, a first refrigeration outlet 52 and a first heat exchange flow path 53, the first refrigeration inlet 51 is communicated with the liquid feeding manifold 31, the first refrigeration outlet 52 is communicated with the liquid returning manifold 32, the liquid outlet of the first heat exchange flow path 53 is communicated with the liquid inlet port 41, and the liquid inlet of the first heat exchange flow path 53 is communicated with the liquid outlet port 42. Through setting up first refrigerator 50 for be independent of the second grade cooling cycle of air conditioner 20 between cold plate coil 40 and the first refrigerator 50, heat transfer between cold plate coil 40 and the rack 10 lies in the refrigerant liquid that infusion house steward 31 carried and carries out the heat transfer, thereby realizes the heat dissipation cooling more effectively.

The first refrigerator 50 can be selectively installed in the system as a selective assembly module, and in the selective assembly process, in order to shorten the length of the connection pipeline, therefore, the air conditioner inlet 23 and the air conditioner outlet 24 are both disposed at the same side position of the air conditioner 20, the first refrigerator 50 is externally hung at the side position of the air conditioner 20 where the air conditioner inlet 23 and the air conditioner outlet 24 are disposed, and the first refrigeration inlet 51 and the first refrigeration outlet 52 of the first refrigerator 50 are both disposed at the same side of the first refrigerator 50, then, the pipeline connected from the first refrigeration inlet 51 is communicated with the air conditioner outlet 24, and the pipeline connected from the first refrigeration outlet 52 is communicated with the liquid return header pipe 32. Therefore, no matter whether the first refrigerator 50 as the optional module is selected to be installed in the system or not, the relative positions of the air conditioner 20 and the liquid feeding main pipe 31 and the liquid returning main pipe 32 are not influenced, and the installation is convenient.

As shown in fig. 2, in the air conditioning system of the machine room of the first embodiment, the external heat releasing device specifically uses the cooling tower 310 to store the refrigerant fluid and realize circulation, and in the present invention, water is used as the refrigerant fluid, and the cooling tower 310 provides the circulating refrigerant water to the pipes of the air conditioning system of the machine room, and heat exchange is realized between the air conditioner 20 and the cold plate coils 40 through the flowing of the circulating water. In the specific assembly process, the cooling tower 310 is placed outside the machine room space, the cooling tower 310 is provided with a cooling tower inlet 311 and a cooling tower outlet 312, the cooling tower outlet 312 is communicated with the liquid inlet end of the liquid conveying main pipe 31, and the cooling tower inlet 311 is communicated with the liquid outlet end of the liquid returning main pipe 32. The water is used as the refrigerating fluid, so that the cost can be effectively saved, and the popularization and the use of the machine room air conditioning system are facilitated.

Further, in the machine 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 feeding main pipe 31, and a valve B62 is provided between the cooling tower inlet 311 and the liquid outlet end of the liquid returning main pipe 32. Therefore, the on-off of the cooling tower 310 and the pipeline in the air conditioning system of the machine room can be realized through the valve A61 and the valve B62, when the air conditioner 20 or the cold plate coil 40 needs to be maintained and replaced, the circulating water is cut off by closing the valve A61 and the valve B62, then the maintenance and replacement work is carried out, and the circulating water does not flow into the space of the machine room any more at this time, so that the work is convenient.

As shown in fig. 2, a water pump is provided on the cooling tower 310 and the liquid return header pipe 32, and a water pump is provided on a connecting pipeline between the liquid outlet end of the first heat exchange flow path 53 and the liquid inlet port 41, and the water pump is used to provide circulating water flow power.

In the first embodiment, the cooling tower 310 inputs the cooling liquid into the air conditioner 20 for heat exchange to remove heat, so that the air conditioner 20 in the first embodiment directly utilizes the cooling liquid to achieve heat exchange and temperature reduction (no compressor is required to be equipped in the air conditioner 20).

In the first embodiment, in order to realize the overall automatic monitoring and control, the control module is used to realize the control of the valve a61, the valve B62 and the air conditioner 20, and the intelligent automatic control of the air conditioning system of the machine room is realized. The control module is only a control system capable of realizing intelligent internet of things control, and is popularized in the prior art, so that the detailed description is omitted.

As shown in fig. 3, which shows a schematic diagram of a piping arrangement according to a second embodiment of the present invention. Among them, the room air conditioning system of the second embodiment has the following differences compared with the room air conditioning system of the first embodiment.

In the machine room air conditioning system of the second embodiment, a second refrigerator 301 and a compressor 302 are arranged 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 communicated with the liquid conveying main 31, the second refrigeration liquid outlet is communicated with the liquid return main 32, the liquid outlet end of the second heat exchange flow path is communicated with the evaporator inlet of the air conditioner 20, and the cooling liquid output by the cooling tower 310 flows through the second refrigerator 301 for heat exchange. And the liquid inlet end of the second heat exchange flow path is communicated with the outlet of the evaporator of the air conditioner 20, the compressor 302 is arranged on a connecting pipeline between the liquid inlet end of the second heat exchange flow path and the outlet of the evaporator of the air conditioner 20, the compressor 302 compresses the refrigerating fluid in the second heat exchange flow path, the refrigerating fluid is transmitted to the evaporator of the air conditioner 20 for refrigeration, and then the refrigerating fluid flows back to the second refrigerator 301 to exchange heat with the cooling fluid transmitted by the cooling tower 310, and then the cooling fluid takes away heat, so that heat dissipation and cooling are realized.

In the present application, the first refrigerator 50 and the second refrigerator 301 may be a plate heat exchanger, a double pipe heat exchanger, a tank heat exchanger, or the like. The cooling tower 310 may be a water cooling tower, an air cooling tower, or any other cooling tower that uses a cooling medium to exchange heat.

Furthermore, a flow regulating valve can be arranged on a connecting pipeline between the liquid conveying main pipe 31 and the second refrigeration liquid inlet, so that the regulation can be carried out according to the refrigeration output requirement of the air conditioner 20, and the purpose of saving energy consumption is achieved.

Compared with the first embodiment, the second embodiment has the same structure except for the above structure, and thus, the description thereof is omitted.

As shown in fig. 4, it shows a schematic diagram of a piping arrangement according to a third embodiment of the present invention. The machine room air conditioning system of the third embodiment has the following differences compared to the machine room air conditioning system of the first embodiment.

In the machine room air conditioning system of the third embodiment, the external heat releasing device specifically uses the cooling tower 310 and the water chiller unit 320 at the same time, wherein the cooling tower 310 is mainly responsible for cooling the water chiller unit 320, and the water chiller unit 320 provides circulating cooling water for the pipeline in the machine room air conditioning system to cool the cabinet 10. In the specific assembling process, the cooling tower 310 is provided with a cooling tower inlet 311 and a cooling tower outlet 312, the water chiller 320 is provided with 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 communicated with the liquid inlet end of the liquid conveying main pipe 31, the unit liquid inlet 321 is communicated with the liquid outlet end of the liquid return main pipe 32, the cooling liquid inlet 323 is communicated with the cooling tower outlet 312, and the cooling liquid outlet 324 is communicated with the cooling tower inlet 311.

Further, a valve C63 is arranged between the unit liquid outlet 322 and the liquid inlet end of the liquid feeding main pipe 31, a valve D64 is arranged between the unit liquid inlet 321 and the liquid outlet end of the liquid returning main pipe 32, a valve E65 is arranged between the cooling tower outlet 312 and the cooling liquid inlet 323, and a valve F66 is arranged between the cooling tower inlet 311 and the cooling liquid outlet 324. The on-off of the cooling tower 310 and the pipeline in the air conditioning system of the machine room is realized through the valve C63 and the valve D64, when the air conditioner 20 or the cold plate coil 40 needs to be maintained and replaced, the circulating water is cut off by closing the valve C63 and the valve D64, then the maintenance and replacement work is carried out, and at the moment, the circulating water does not flow into the space of the machine room any more, so that the work is convenient. The on-off of the pipeline between the cooling tower 310 and the water chiller unit 320 is realized through the valve E65 and the valve F66, and when the water chiller unit 320 needs to be maintained and replaced, the circulating water is cut off by closing the valve E65 and the valve F66, and then the maintenance and replacement work is carried out. Accordingly, the control module is also electrically connected with the valve C63, the valve D64, the valve E65 and the valve F66 for intelligent automatic control.

As shown in fig. 4, a pump is disposed on the liquid return header pipe 32 of the cooling tower 310, a water pump is disposed on a connection pipeline between the liquid outlet end of the first heat exchange flow path 53 and the liquid inlet port 41, the pump is used to provide circulating water flowing power, and a connection pipeline between the water chiller unit and the liquid return header pipe is also provided with a pump to provide output and return power for the circulating water.

Compared with the first embodiment, the third embodiment has the same structure except for the above structure, and thus, the description thereof is omitted.

As shown in fig. 5, it shows a schematic diagram of a piping arrangement structure of a machine room air conditioning system according to a fourth embodiment of the present invention. The room air conditioning system of the fourth embodiment has the following differences compared with the room air conditioning system of the third embodiment.

In the machine room air conditioning system of the fourth embodiment, a second refrigerator 301 and a compressor 302 are arranged 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 communicated with the liquid conveying main 31, the second refrigeration liquid outlet is communicated with the liquid return main 32, a liquid outlet end of the second heat exchange flow path is communicated with an evaporator inlet of the air conditioner 20, and the cooling liquid output by the cooling tower 310 flows through the second refrigerator 301 for heat exchange. And the liquid inlet end of the second heat exchange flow path is communicated with the outlet of the evaporator of the air conditioner 20, the compressor 302 is arranged on a connecting pipeline between the liquid inlet end of the second heat exchange flow path and the outlet of the evaporator of the air conditioner 20, the compressor 302 compresses the refrigerating fluid in the second heat exchange flow path, the refrigerating fluid is transmitted to the evaporator of the air conditioner 20 for refrigeration, and then the refrigerating fluid flows back to the second refrigerator 301 to exchange heat with the cooling fluid transmitted by the cooling tower 310, and then the cooling fluid takes away heat, so that heat dissipation and cooling are realized.

Furthermore, a flow regulating valve can be arranged on a connecting pipeline between the liquid conveying main pipe 31 and the second refrigeration liquid inlet, so that the regulation can be carried out according to the refrigeration output requirement of the air conditioner 20, and the purpose of saving energy consumption is achieved.

Compared with the third embodiment, the fourth embodiment has the same structure except for the above structure, and thus the description thereof is omitted.

As shown in fig. 6, it shows a schematic diagram of a piping arrangement structure of a machine room air conditioning system according to a fifth embodiment of the present invention. The machine room air conditioning system of the fifth embodiment has the following differences compared with the machine room air conditioning system of the third embodiment.

In the computer room air conditioning system of the fifth embodiment, the cooling tower outlet 312 is communicated with the liquid inlet end of the liquid feeding main pipe 31, the cooling tower inlet 311 is communicated with the liquid outlet end of the liquid returning main pipe 32, a valve a61 is arranged between the cooling tower outlet 312 and the liquid inlet end of the liquid feeding main pipe 31, and a valve B62 is arranged between the cooling tower inlet 311 and the liquid outlet end of the liquid returning main pipe 32, so that the connection and disconnection between the cooling tower 310 and the water chiller unit 320 can be realized through the valve a61 and the valve B62, and when the water chiller unit 320 needs to be maintained, the circulating water is cut off by closing the valve a61 and the valve B62. A valve E65 is arranged between the cooling tower outlet 312 and the cooling liquid inlet 323, a valve F66 is arranged between the cooling tower inlet 311 and the cooling liquid outlet 324, and the valve E65, the valve F66, the valve C63 and the valve D64 are controlled, wherein the valve E65 and the valve F66 are simultaneously on and off, and the valve C63 and the valve D64 are simultaneously on and off, so that the switching of the pipeline communication of the cooling tower 310 and the machine room air conditioning system and the pipeline communication of the water cooling unit 320 and the machine room air conditioning system can be realized.

When the cooling tower 310 is switched to be communicated with the pipeline of the machine room air conditioning system, the valve A61 and the valve B62 are opened simultaneously, and the valve C63, the valve D64, the valve E65 and the valve F66 are closed simultaneously.

To further realize the automatic control, therefore, the machine room air conditioning system of the fourth embodiment further includes a control module, the valve a61, the valve B62, the valve C63, the valve D64, the valve E65 and the valve F66 are all electromagnetic control valves, the control module is electrically connected with the valve a61, the valve B62, the valve C63, the valve D64, the valve E65 and the valve F66, and the control module controls the operation of the air conditioner 20.

In summary, compared with the third embodiment, the fifth embodiment has the same structure except for the above structure, and thus the description thereof is omitted.

As shown in fig. 7, it shows a schematic diagram of a piping arrangement structure of a machine room air conditioning system according to a sixth embodiment of the present invention. The room air conditioning system of the sixth embodiment has the following differences compared with the room air conditioning system of the fifth embodiment.

In the sixth embodiment, a second refrigerator 301 and a compressor 302 are disposed 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 communicated with the liquid feeding manifold 31, the second refrigeration liquid outlet is communicated with the liquid returning manifold 32, a liquid outlet end of the second heat exchange flow path is communicated with an evaporator inlet of the air conditioner 20, and the cooling liquid output by the cooling tower 310 flows through the second refrigerator 301 for heat exchange. And the liquid inlet end of the second heat exchange flow path is communicated with the outlet of the evaporator of the air conditioner 20, the compressor 302 is arranged on a connecting pipeline between the liquid inlet end of the second heat exchange flow path and the outlet of the evaporator of the air conditioner 20, the compressor 302 compresses the refrigerating fluid in the second heat exchange flow path, the refrigerating fluid is transmitted to the evaporator of the air conditioner 20 for refrigeration, and then the refrigerating fluid flows back to the second refrigerator 301 to exchange heat with the cooling fluid transmitted by the cooling tower 310, and then the cooling fluid takes away heat, so that heat dissipation and cooling are realized.

Furthermore, a flow regulating valve can be arranged on a connecting pipeline between the liquid conveying main pipe 31 and the second refrigeration liquid inlet, so that the regulation can be carried out according to the refrigeration output requirement of the air conditioner 20, and the purpose of saving energy consumption is achieved.

In summary, compared with the fifth embodiment, the sixth embodiment has the same structure except for the above structure, and thus the description thereof is omitted.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A machine room air conditioning system comprising:

a support plate (100), the support plate (100) being used for placing a cabinet (10);

an air conditioner (20), the air conditioner (20) being disposed below the support plate (100);

its characterized in that, computer lab air conditioning system still includes:

an external heat-emitting device;

a liquid feeding main pipe (31) and a liquid returning main pipe (32), wherein the liquid feeding main pipe (31) and the liquid returning main pipe (32) are communicated with the external heat-releasing equipment to form a circulating flow path, the liquid feeding main pipe (31) is used for providing cooling fluid, and the liquid feeding main pipe (31) and the liquid returning main pipe (32) extend to the air conditioner (20);

the cold plate coil (40) is provided with a liquid inlet interface (41) and a liquid outlet interface (42), the cold plate coil (40) is arranged on the cabinet (10), the liquid inlet interface (41) is communicated with the liquid conveying main pipe (31), and the liquid outlet interface (42) is communicated with the liquid return main pipe (32);

the air conditioner (20) is also provided with an air conditioner liquid inlet (23) and an air conditioner liquid outlet (24), the air conditioner liquid inlet (23) is communicated with the liquid conveying main pipe (31), and the air conditioner liquid outlet (24) is communicated with the liquid returning main pipe (32).

2. The machine room air conditioning system of claim 1,

the machine room air conditioning system also comprises a first refrigerator (50), the first refrigerator (50) is detachably hung on the shell of the air conditioner (20), and the first refrigerator (50) is positioned below the support plate (100), the first refrigerator (50) is provided with 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 communicated with the liquid conveying main pipe (31), the first refrigeration liquid outlet (52) is communicated with the liquid return header pipe (32), the liquid outlet end of the first heat exchange flow path (53) is communicated with the liquid inlet interface (41), a water pump is arranged between the liquid outlet end of the first heat exchange flow path (53) and the liquid inlet interface (41), the liquid inlet end of the first heat exchange flow path (53) is communicated with the liquid outlet interface (42).

3. The machine room air conditioning system of claim 2,

the air conditioner liquid inlet (23) and the air conditioner liquid outlet (24) are arranged on the same side of the air conditioner (20), and the first refrigerator (50) is externally hung on one side of the air conditioner (20) where the air conditioner liquid inlet (23) and the air conditioner liquid outlet (24) are arranged.

4. Machine room air conditioning system according to any of claims 1 to 3,

outside exothermic equipment still includes cooling tower (310), cooling tower (310) have cooling tower entry (311) and cooling tower exit (312), cooling tower exit (312) with the feed liquor end intercommunication of infusion house steward (31), cooling tower entry (311) with the play liquid end intercommunication of returning liquid house steward (32), cooling tower exit (312) with be equipped with valve A (61) between the feed liquor end of infusion house steward (31), cooling tower entry (311) with be equipped with valve B (62) between the play liquid end of returning liquid house steward (32), cooling tower entry (311) with be equipped with the water pump on the connecting pipeline between the play liquid end of returning liquid house steward (32).

5. The machine room air conditioning system of claim 4,

be equipped with second refrigerator (301) and compressor (302) in air conditioner (20), second refrigerator (301) has second refrigeration inlet, second refrigeration liquid outlet and second heat transfer flow path, second refrigeration inlet with infusion house steward (31) intercommunication, second refrigeration liquid outlet with return liquid house steward (32) intercommunication, the play liquid end of second heat transfer flow path with the evaporimeter entry intercommunication of air conditioner (20), the inlet end of second heat transfer flow path with the evaporimeter export intercommunication of air conditioner (20), compressor (302) set up in the inlet end of second heat transfer flow path with on the connecting pipeline of the evaporimeter export of air conditioner (20).

6. The machine room air conditioning system of claim 3,

the outside equipment of releasing heat still includes cooling tower (310) and water chilling unit (320), cooling tower (310) has cooling tower entry (311) and cooling tower outlet (312), water chilling unit (320) has unit inlet (321), unit liquid outlet (322), cooling inlet (323) and cooling liquid outlet (324), unit liquid outlet (322) with the inlet end intercommunication of infusion header pipe (31), unit inlet (321) with the play liquid end intercommunication of returning liquid header pipe (32), cooling inlet (323) with cooling tower outlet (312) intercommunication, cooling liquid outlet (324) with cooling tower entry (311) intercommunication.

7. The machine room air conditioning system of claim 6,

unit liquid outlet (322) with be equipped with valve C (63) between the feed liquor end of infusion house steward (31), unit inlet (321) with be equipped with valve D (64) between the play liquid end of liquid return house steward (32), cooling tower outlet (312) with be equipped with valve E (65) between cooling inlet (323), cooling tower entry (311) with be equipped with valve F (66) between cooling liquid outlet (324).

8. The machine room air conditioning system of claim 7,

cooling tower outlet (312) with the feed liquor end intercommunication of infusion house steward (31), cooling tower entry (311) with the play liquid end intercommunication of liquid house steward (32) returns, cooling tower outlet (312) with be equipped with valve A (61) between the feed liquor end of infusion house steward (31), cooling tower entry (311) with be equipped with valve B (62) between the play liquid end of liquid house steward (32) returns.

9. The machine room air conditioning system of claim 8,

the machine room air conditioning system further comprises a control module, the valve A (61), the valve B (62), the valve C (63), the valve D (64), the valve E (65) and the valve F (66) are electromagnetic control valves, the control module is connected with the valve A (61), the valve B (62), the valve C (63), the valve D (64), the valve E (65) and the valve F (66) in an electric connection mode, and the control module controls the air conditioner (20) to operate.

10. Machine room air conditioning system according to any of claims 7 to 9,

be equipped with second refrigerator (301) and compressor (302) in air conditioner (20), second refrigerator (301) has second refrigeration inlet, second refrigeration liquid outlet and second heat transfer flow path, second refrigeration inlet with infusion house steward (31) intercommunication, second refrigeration liquid outlet with return liquid house steward (32) intercommunication, the play liquid end of second heat transfer flow path with the evaporimeter entry intercommunication of air conditioner (20), the inlet end of second heat transfer flow path with the evaporimeter export intercommunication of air conditioner (20), compressor (302) set up in the inlet end of second heat transfer flow path with on the connecting pipeline of the evaporimeter export of air conditioner (20).

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