CN117560908A - Air conditioning system with multiple internal machines - Google Patents
Air conditioning system with multiple internal machines Download PDFInfo
- Publication number
- CN117560908A CN117560908A CN202311613126.1A CN202311613126A CN117560908A CN 117560908 A CN117560908 A CN 117560908A CN 202311613126 A CN202311613126 A CN 202311613126A CN 117560908 A CN117560908 A CN 117560908A
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- Prior art keywords
- liquid cooling
- evaporator
- air conditioner
- server cabinet
- conditioning system
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 27
- 238000001816 cooling Methods 0.000 claims abstract description 176
- 239000007788 liquid Substances 0.000 claims abstract description 107
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 40
- 239000011737 fluorine Substances 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 57
- 239000003507 refrigerant Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 238000001704 evaporation Methods 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001932 seasonal effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20718—Forced ventilation of a gaseous coolant
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20309—Evaporators
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20318—Condensers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20327—Accessories for moving fluid, for connecting fluid conduits, for distributing fluid or for preventing leakage, e.g. pumps, tanks or manifolds
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20354—Refrigerating circuit comprising a compressor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20763—Liquid cooling without phase change
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/208—Liquid cooling with phase change
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses an air conditioning system with a plurality of internal machines, which relates to the technical field of fluorine pump circulating systems, and comprises: the device comprises a plug frame air conditioner, a plurality of liquid cooling plates, a plurality of backboard air conditioners and a plurality of server cabinets, wherein the liquid cooling plates are adhered to high-heating devices of each server cabinet; the plug frame air conditioner comprises a condenser, a fluorine pump, a plurality of throttle valves, a plurality of first evaporators and a compressor which are connected in sequence, wherein the condenser, the fluorine pump and the compressor are positioned in an outdoor unit outside a server cabinet, and the first evaporators are positioned inside the server cabinet; a back panel air conditioner and a first evaporator are integrated on the side surface of the same server cabinet; the liquid cooling plate is cooled by an external cooling system. The system can solve the problems of pipeline arrangement and flow resistance of the compressor and the fluorine pump, and the problems of different cold energy and different branch flow rates of the backboard air conditioner and the plug frame air conditioner.
Description
Technical Field
The invention relates to the technical field of fluorine pump circulating systems, in particular to an air conditioning system with a plurality of internal machines.
Background
At present, with the increase of the power density of a server chip, the existing common air cooling heat exchange mode cannot meet the heat exchange requirement of the chip, and liquid cooling is used as an efficient heat exchange and energy-saving alternative scheme to gradually replace the existing air cooling technology. The liquid cooling technology mainly adopts a cold plate type liquid cooling mode, the cold plate type liquid cooling mode mainly adopts a liquid cooling plate, the liquid cooling plate performs cold-heat exchange with a chip with high heat productivity of a server and the like, and heat is rapidly transferred to the outside of the cabinet through a heat exchange system connected with the liquid cooling plate.
However, since the heat exchange system of the liquid cooling plate needs to be laid out and installed in a small space and connected through multiple pipelines, the problems of difficult space arrangement and high complexity are brought, and meanwhile, the situations of liquid return, liquid shortage of a fluorine pump and the like of a compressor are difficult to avoid, so that the heat exchange efficiency is reduced, and the efficiency cannot be maximized. In addition, considering the condition that the fluorine pump circulation system is in one-to-many mode in the future, the problem that the temperature control performance of the one-to-many system is not easy to guarantee exists. If a system combining the plug frame module and the back plate module is adopted, the problems of pipeline arrangement and flow resistance of a compressor and a fluorine pump system are related, and the problems of different cold capacities of a back plate evaporator and a plug frame water cooling system, difficult distribution under different branch flow rates and the like are related.
In summary, how to provide a cooling system suitable for the situation of one-to-many fluorine pump circulation system is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention is to provide an air conditioning system with multiple internal units, which is suitable for the situation that the fluorine pump circulation system is in one-to-many mode, and can solve the problems of pipeline arrangement and flow resistance of the compressor and the fluorine pump, and the problem of difficult distribution of different cold capacities and different branch flow rates of the backboard air conditioner and the plug frame air conditioner.
In order to achieve the above object, the present invention provides the following technical solutions:
an air conditioning system provided with a plurality of internal machines, comprising: the device comprises a plug frame air conditioner, a plurality of liquid cooling plates, a plurality of back plate air conditioners and a plurality of server cabinets, wherein the liquid cooling plates are adhered to high-heating devices of each server cabinet;
the plug frame air conditioner comprises a condenser, a fluorine pump, a plurality of throttle valves, a plurality of first evaporators and a compressor which are connected in sequence, wherein the condenser, the fluorine pump and the compressor are positioned in an outdoor unit outside the server cabinet, and the first evaporators are positioned inside the server cabinet;
one of the back panel air conditioners and one of the first evaporators are integrated on the side face of the same server cabinet;
the liquid cooling plate is used for cooling through an external cooling system.
In one embodiment, the external cooling system is an open cooling tower, and the open cooling tower is connected with the liquid cooling plate through a plate heat exchanger.
In one embodiment, the external cooling system is a closed cooling tower, the heat exchange medium of the liquid cooling plate is water, the liquid cooling plate is communicated with the closed cooling tower, and a liquid pump is arranged between the liquid cooling plate and the closed cooling tower.
In one embodiment, the external cooling system is the outdoor unit, the heat exchange medium of the liquid cooling plate is a refrigerant, and the liquid cooling plate is connected in parallel with the first evaporator.
In one embodiment, the first evaporator comprises a plate heat exchanger provided with a first heat exchange channel and a second heat exchange channel, the first heat exchange channel is communicated with the outdoor unit, and the second heat exchange channel is communicated with the liquid cooling plate.
In one embodiment, the device further comprises a water separator and a water collector, wherein the inlet of the water separator is connected with the outlet of the external cooling system, and the outlet of the water separator is connected with the inlets of the liquid cooling plates;
the outlets of the liquid cooling plates are connected with the inlet of the water collector, and the outlet of the water collector is connected with the inlet of the external cooling system.
In one embodiment, the water separator and the water collector are disposed outside of the server cabinet.
In one embodiment, each back panel air conditioner comprises a second evaporator, a heat exchange medium in the second evaporator is water, and the second evaporator is connected with a server cabinet in parallel with the liquid cooling plate.
In one embodiment, each back panel air conditioner comprises a second evaporator, the heat exchange medium in the second evaporator is a refrigerant, and the second evaporator is connected with the first evaporator in parallel.
In one embodiment, each of the back panel air conditioners includes a fan, the second evaporator is disposed on one side of the server cabinet, and the fan is disposed on the other side of the server cabinet.
When the air conditioning system with a plurality of internal machines provided by the invention is used, the operation mode of the condensing end of the system is as follows: when the ambient temperature is in a lower temperature range (for example, 5 ℃ to 15 ℃), an external cooling system can be adopted to cool the liquid cooling plate; when the ambient temperature is in a medium temperature range (for example, 15 ℃ to 35 ℃), the liquid cooling plate can be cooled by combining the fluorine pump with the first evaporator; when the ambient temperature is in a high temperature range (for example, more than 35 ℃), the liquid cooling plate can be cooled by utilizing a mode of combining the fluorine pump, the compressor and the first evaporator.
The operation mode of the system evaporation end is as follows: the server cabinets are connected in parallel, and when the server cabinets work simultaneously, the evaporation end of each server cabinet can be controlled and regulated to be on-off or flow so as to be matched with the heat of the condensation end of the server cabinet.
The system can solve the heat dissipation of the high-heat-generation device (namely, the chip with high heat dissipation density and the temperature of about 50 ℃ and above) through the liquid cooling plate. When the ambient temperature is low, the second evaporator of the backboard air conditioner exchanges heat with the air in the server cabinet, so that the temperature of devices with low heat dissipation density in the server cabinet is reduced, and the second evaporator of the backboard air conditioner can supply cold through a cooling tower or an inserting frame air conditioner; when the ambient temperature is high, the backboard air conditioner can be cooled through the plug frame air conditioner, so that the temperature of devices with low heat dissipation density in the server cabinet is reduced, and the plug frame air conditioner takes away heat through the condenser of the outdoor unit.
The device can fully utilize natural cold sources according to outdoor temperature or seasonal changes, reduce energy consumption, solve the problems of pipeline arrangement and flow resistance of a compressor and a fluorine pump, and solve the problem of difficult distribution of different cold values and different branch flow rates of a backboard air conditioner and an inserting frame air conditioner. The cooling component of the backboard air conditioner is mainly used for solving the heat of auxiliary devices, the liquid cooling plate is mainly used for solving the heat of high-heating-density devices, and the plug-in frame air conditioner is mainly used for solving the cooling problem of the backboard air conditioner and the liquid cooling plate at high temperature.
In summary, the air conditioning system with multiple internal units provided by the invention is suitable for the situation that the fluorine pump circulation system is in one-to-many mode, can solve the problems of pipeline arrangement and flow resistance of a compressor and a fluorine pump, and solves the problem of difficult distribution of different cold energy and different branch flow rates of a backboard air conditioner and an inserting frame air conditioner.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an air conditioning system with multiple indoor units according to the present invention;
FIG. 2 is a schematic view of a structure in which a plurality of first evaporators share a condenser;
FIG. 3 is a schematic view of an open cooling tower for an external cooling system in an air conditioning system having a plurality of internal units;
fig. 4 is a schematic diagram of cooling heat exchange principle of the plug-in frame air conditioner and the liquid cooling plate when the external cooling system is an open cooling tower;
fig. 5 is a schematic diagram of cooling heat exchange principle of the plug-in frame air conditioner and the liquid cooling plate when the external cooling system is a closed cooling tower.
In fig. 1-5:
the air conditioner comprises a plug frame air conditioner 1, a condenser 11, a fluorine pump 12, an evaporator 13, a compressor 14, a one-way valve 15, a throttle valve 16, a plate heat exchanger 17, a liquid pump 18, a water separator 2, a water collector 3, a liquid cooling plate 4, a total water inlet 41, a total water outlet 42, a water inlet branch pipe 43, a water outlet branch pipe 44, a flow distribution switch 45, a back plate air conditioner 5, a server cabinet 6, an open cooling tower 7, a closed cooling tower 8, an outdoor unit 9, a heat radiation fan 91, a first liquid inlet 92 and a second liquid outlet 93.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides an air conditioning system with a plurality of internal machines, which is suitable for the situation that a fluorine pump circulation system is in one-to-many mode, can solve the problems of pipeline arrangement and flow resistance of a compressor and a fluorine pump, and solves the problem of difficult distribution of different cold energy and different branch flow rates of a backboard air conditioner and an inserting frame air conditioner.
Referring to fig. 1 to 5, fig. 1 is a schematic structural diagram of an air conditioning system with multiple internal units according to the present invention; FIG. 2 is a schematic view of a structure in which a plurality of first evaporators share a condenser; FIG. 3 is a schematic view of an open cooling tower for an external cooling system in an air conditioning system having a plurality of internal units; fig. 4 is a schematic diagram of cooling heat exchange principle of the plug-in frame air conditioner and the liquid cooling plate when the external cooling system is an open cooling tower; fig. 5 is a schematic diagram of cooling heat exchange principle of the plug-in frame air conditioner and the liquid cooling plate when the external cooling system is a closed cooling tower.
The present embodiment provides an air conditioning system provided with a plurality of internal machines, including: the air conditioner comprises an inserting frame air conditioner 1, a plurality of liquid cooling plates 4, a plurality of back plate air conditioners 5 and a plurality of server cabinets 6, wherein the liquid cooling plates 4 are adhered to high-heat-generating devices of each server cabinet 6;
the plug frame air conditioner 1 comprises a condenser 11, a fluorine pump 12, a plurality of throttle valves 16, a plurality of first evaporators 13 and a compressor 14 which are connected in sequence, wherein the condenser 11, the fluorine pump 12 and the compressor 14 are positioned in an outdoor unit 9 outside a server cabinet 6, and the first evaporators 13 are positioned inside the server cabinet 6;
a back-plate air conditioner 5 and a first evaporator 13 are integrated on the side of the same server cabinet 6;
the liquid cooling plate 4 is cooled by an external cooling system.
The plug-in frame air conditioner 1 includes a condenser 11, a fluorine pump 12, a plurality of throttle valves 16, a plurality of first evaporators 13, and a compressor 14, which are sequentially connected, and the structure is shown in fig. 2, wherein the throttle valves 16 and the first evaporators 13 are connected in series and are arranged between the fluorine pump 12 and the compressor 14. That is, the plurality of first evaporators 13 share one condenser 11, and the compressor 14 is provided with a bypass line provided with a check valve 15. When the natural environment temperature is low, the compressor 14 can be bypassed, and the operation of the fluorine pump 12 can be controlled to perform refrigeration and driving by stopping the compressor 14 and opening the check valve 15 of the bypass pipeline. When the natural environment temperature is high, the compressor 14 needs to be controlled to operate, and the compressor 14 and the fluorine pump 12 can be simultaneously operated to perform the circulating refrigeration of the fluorine pump compressor system.
It should be further noted that, the plurality of server cabinets 6 are distributed in parallel, each server cabinet 6 is provided with a liquid cooling plate 4, a back plate air conditioner 5, and a first evaporator 13 in the plug frame air conditioner 1, a throttle valve 16 corresponding to each evaporator 13 may be disposed in the server cabinet 6 or the outdoor unit 9, and the liquid cooling plate 4 and the second evaporator of the back plate air conditioner 5 may be connected in parallel or in series, where when the heat exchange medium of the liquid cooling plate 4 and the back plate air conditioner 5 is the same, for example, water or a refrigerant. In addition, the condenser 11, the fluorine pump 12 and the compressor 14 are located in the outdoor unit 9 outside the server cabinet 6, and the present system connects a plurality of indoor units through one outdoor unit 9.
In addition, the condenser 11 may be an evaporative condenser, and the evaporative condenser may have a dry state or a wet state, and the wet state spray device may be turned on to make the evaporative condenser wet state, or the wet state spray device may be turned off to make the evaporative condenser dry state, according to the outdoor ambient temperature.
The shapes, structures, sizes, materials, positions and the like of the plug-in frame air conditioner 1, the liquid cooling plate 4, the backboard air conditioner 5 and the server cabinet 6 can be determined according to actual conditions and actual requirements in the actual application process.
When the air conditioning system with a plurality of internal machines provided by the invention is used, the operation mode of the condensing end of the system is as follows: when the ambient temperature is in a lower temperature range (for example, 5 ℃ to 15 ℃), the liquid cooling plate 4 can be cooled by adopting an external cooling system; when the ambient temperature is in the medium temperature range (for example, 15 ℃ to 35 ℃), the liquid cooling plate 4 can be cooled by combining the fluorine pump 12 with the first evaporator 13; when the ambient temperature is in a high temperature range (for example, greater than 35 ℃), the liquid cooling plate 4 can be cooled by using the combination of the fluorine pump 12, the compressor 14 and the first evaporator 13.
The operation mode of the system evaporation end is as follows: the plurality of server cabinets 6 are connected in parallel, and when the plurality of server cabinets 6 work simultaneously, the evaporation end of each server cabinet 6 can be subjected to on-off or flow control adjustment so as to be matched with the heat of the condensation end of the server cabinet 6.
The system can solve the heat dissipation of the high-heat-generation device (namely, the chip with high heat dissipation density and the temperature of about 50 ℃ and above) through the liquid cooling plate 4. When the ambient temperature is low, the second evaporator of the backboard air conditioner 5 exchanges heat with the air in the server cabinet 6, so that the temperature of devices with low heat dissipation density in the server cabinet 6 is reduced, and the second evaporator of the backboard air conditioner 5 can supply cold through the cooling tower or the plug frame air conditioner 1; when the ambient temperature is high, the first evaporator 13 can cool the liquid cooling plate 4, the second evaporator of the back-plate air conditioner 5 can be connected in parallel with the first evaporator 13, that is, the back-plate air conditioner 5 can be cooled through the plug-in frame air conditioner 1, so as to reduce the temperature of the device with low heat dissipation density in the server cabinet 6, and the plug-in frame air conditioner 1 takes away heat through the condenser 11 of the outdoor unit 9.
That is, the device can fully utilize natural cold source according to outdoor temperature or seasonal variation, reduce energy consumption, solve the problems of pipeline arrangement and flow resistance of the compressor 14 and the fluorine pump 12, and solve the problem of difficult distribution of different cold and different branch flow rates of the backboard air conditioner 5 and the plug frame air conditioner 1. The refrigeration component of the back plate air conditioner 5 is mainly used for solving the heat of auxiliary devices, the liquid cooling plate 4 is mainly used for solving the heat of high-heating-density devices, and the plug frame air conditioner 1 is mainly used for solving the cooling problem of the liquid cooling plate 4 and the second evaporator of the back plate air conditioner 5 at high temperature.
In summary, the air conditioning system with multiple internal units provided by the invention is suitable for the situation that the circulation system of the fluorine pump 12 is dragged more, and can solve the problems of pipeline arrangement and flow resistance of the compressor 14 and the fluorine pump 12 and the problem of difficult distribution of different cold capacities and different branch flow rates of the backboard air conditioner 5 and the plug frame air conditioner 1.
In one embodiment, the external cooling system is an open cooling tower 7, and the open cooling tower 7 is connected with the liquid cooling plate 4 through a plate heat exchanger 17, so that heat exchange is performed between the open cooling tower 7 and the liquid cooling plate 4 through the plate heat exchanger 17, and the structure is shown in fig. 4.
It should be noted that, since the open cooling tower 7 is of an open structure, a lot of impurities and dust will enter the cooling tower, and therefore, a plate heat exchanger 17 is required to prevent the liquid containing impurities and dust from entering the liquid cooling plate 4 to cause blockage or damage. When the open cooling tower 7 is used for cooling the liquid cooling plate 4, the heat exchange medium in the circulation system of the liquid cooling plate 4 exchanges heat with the heat exchange medium of the open cooling tower 7 in the plate heat exchanger 17.
In one embodiment, the external cooling system is a closed cooling tower 8, the heat exchange medium of the liquid cooling plate 4 is water, the liquid cooling plate is communicated with the closed cooling tower 8, and a liquid pump 18 is arranged between the liquid cooling plate 4 and the closed cooling tower 8. That is, the heat exchange medium of the liquid cooling plate 4 is the same as the heat exchange medium of the closed cooling tower 8, and the heat exchange medium can flow mutually under the drive of the liquid pump 18, so that the heat of the heat exchange medium in the liquid cooling plate 4 is taken away through the spraying system of the closed cooling tower 8.
In one embodiment, the external cooling system is the outdoor unit 9, the heat exchange medium of the liquid cooling plate 4 is a refrigerant, so that the liquid cooling plate 4 can also be used as an evaporator, and the heat of the heat exchange medium in the liquid cooling plate 4 is taken away by the condenser 11 of the outdoor unit 9, and at this time, the liquid cooling plate 4 is connected in parallel with the first evaporator 13, so that the liquid cooling plate 4 and the first evaporator 13 can share one outdoor unit 9.
The external cooling system may be provided as the outdoor unit 9, and the outdoor unit 9 is a part of the plug-in frame air conditioner 1, that is, the condenser 11, the fluorine pump 12, and the compressor 14 are located in the outdoor unit 9, and the outdoor unit 9 further includes a heat dissipation fan 91, so that the liquid cooling plate 4 is cooled by using a mechanical refrigeration method. The water outlet of the first evaporator 13 may be connected to the first liquid inlet 92 of the compressor 14 in the outdoor unit 9, the first liquid outlet of the compressor 14 in the outdoor unit 9 may be connected to the second liquid inlet of the fluorine pump 12, and the second liquid outlet 93 of the chamber fluorine pump 12 may be connected to the water inlet of the first evaporator 13, so as to cool the liquid cooling plate 4 effectively by mechanical refrigeration.
In one embodiment, as shown in fig. 4 and 5, the first evaporator 13 may be a dual-cold-source evaporator, which includes a plate heat exchanger and an air-cooled heat exchanger, wherein the plate heat exchanger is provided with a first heat exchange channel and a second heat exchange channel, the first heat exchange channel is communicated with the outdoor unit 9, and the second heat exchange channel is communicated with the liquid-cooled plate 4; so, can realize the cooling to liquid cooling board 4 through plate heat exchanger, when ambient temperature is higher, when the natural cooling of external cooling system can't satisfy the cooling of liquid cooling board 4, the fluorine pump pumping machine system can be through plate heat exchanger's first heat transfer passageway and second heat transfer passageway in order to cool liquid cooling board 4.
Moreover, the plate heat exchanger and the air-cooled heat exchanger can be arranged in parallel, wherein the specific connection relation between the plate heat exchanger and the air-cooled heat exchanger can be determined according to the heat exchange medium of the plate heat exchanger and the air-cooled heat exchanger. In addition, the air-cooled heat exchanger may be fixed on a first side of the server cabinet 6, where the first side or a second side of the server cabinet 6 is provided with fans, and the second side is distributed opposite to the first side. The air in the server cabinet 6 is driven by the fan to exchange heat with the air-cooled heat exchanger, so that the internal temperature of the server cabinet 6 is further reduced, and the heat dissipation effect is improved.
In one embodiment, the water separator further comprises a water separator 2 and a water collector 3, wherein the inlet of the water separator 2 is connected with the outlet of the external cooling system, and the outlet of the water separator 2 is connected with the inlets of the plurality of liquid cooling plates 4; the outlets of the liquid cooling plates 4 are connected with the inlet of the water collector 3, and the outlet of the water collector 3 is connected with the inlet of an external cooling system.
It should be noted that, a plurality of liquid cooling plates 4 may be disposed in parallel in the server cabinet 6, the water outlet of the water separator 2 is connected with the total water inlet 41 of the liquid cooling plates 4, the total water outlet 42 of the liquid cooling plates 4 is connected with the water inlet of the water collector 3, wherein the water inlet branch pipes 43 of each liquid cooling plate 4 are connected with the total water inlet 41, the water inlet branch pipes 43 are distributed in parallel, the water outlet branch pipes 44 of each liquid cooling plate 4 are connected with the total water outlet 42, and the water outlet branch pipes 44 are distributed in parallel. The inlet of the water separator 2 is connected to the outlet of the external cooling system, and the outlet of the water collector 3 is connected to the inlet of the external cooling system, so that each liquid cooling plate 4 can be cooled by the external cooling system.
In one embodiment, the water separator 2 and the water collector 3 are disposed outside the server cabinet 6, so that the server cabinet 6 is more compact in structure and occupies less space.
In one embodiment, each back panel air conditioner 5 comprises a second evaporator, the heat exchange medium in the second evaporator is water, the second evaporator is connected with the liquid cooling plate 4 in parallel, and the second evaporator is also connected with an external cooling system through the water separator 2 and the water collector 3, so that the external cooling system cools the second evaporator.
In one embodiment, each back-panel air conditioner 5 includes a second evaporator, the heat exchange medium in the second evaporator is a refrigerant, and the second evaporator is connected in parallel with the first evaporator 13, where the second evaporator may take heat away by the condenser 11 in the outdoor unit 9 of the plug-in frame air conditioner 1. The backboard air conditioner 5 can be tiled on one side of the server cabinet 6, so that heat dissipation of the rack is more uniform. Each first evaporator 13 is provided with a throttle valve 16, and the throttle valve 16 is used for on-off or flow control adjustment, and each liquid cooling plate 4 is provided with a flow distribution switch 45.
It should be noted that, when the plurality of server cabinets 6 work simultaneously, the server cabinets 6 adopt a parallel connection mode, and the evaporation end of each server cabinet 6 has a ball valve or a flow valve, so that on-off or flow control adjustment can be performed. The flow control adjustment satisfies L1 > L2 > L3, then Q1 > Q2 > Q3, where L represents the distance between the ball valve or flow valve of a certain server cabinet 6 and the condensing end of the same server cabinet 6 and Q represents the flow. Each liquid cooling plate 4 has a flow distribution switch 45, and the flow control relationship of the flow distribution switch 45 satisfies the above-described positive correlation between the distance and the flow.
In one embodiment, each back panel air conditioner 5 includes a blower, the second evaporator is disposed on one side of the server cabinet 6, and the blower is disposed on the other side of the server cabinet 6. The distance between the fan of the back plate air conditioner 5 and the second evaporator (namely the evaporating coil) of the back plate air conditioner 5 is larger by the arrangement, so that the air suction effect of the fan is more uniform, the arrangement space of a plurality of fans on the same side is larger, and the mutual interference between the fans is reduced.
It should be noted that, in the present invention, the first evaporator 13 and the second evaporator are mentioned, where the first and the second are merely to distinguish the difference of the positions, and there is no sequential distinction.
It should be noted that the orientation or positional relationship indicated by "in and out" or the like of the present invention is based on the orientation or positional relationship shown in the drawings, and is merely for simplicity of description and ease of understanding, and does not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. Any combination of all the embodiments provided in the present invention is within the protection scope of the present invention, and will not be described herein.
The air conditioning system provided by the invention and provided with a plurality of internal machines is described above in detail. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (10)
1. An air conditioning system provided with a plurality of internal machines, comprising: the air conditioner comprises an inserting frame air conditioner (1), a plurality of liquid cooling plates (4), a plurality of backboard air conditioners (5) and a plurality of server cabinets (6), wherein the liquid cooling plates (4) are adhered to high-heat-generating devices of each server cabinet (6);
the plug frame air conditioner (1) comprises a condenser (11), a fluorine pump (12), a plurality of throttle valves (16), a plurality of first evaporators (13) and a compressor (14) which are sequentially connected, wherein the condenser (11), the fluorine pump (12) and the compressor (14) are positioned in an outdoor unit (9) outside a server cabinet (6), and the first evaporators (13) are positioned inside the server cabinet (6);
one back panel air conditioner (5) and one first evaporator (13) are integrated on the side surface of the same server cabinet (6);
the liquid cooling plate (4) is used for cooling through an external cooling system.
2. Air conditioning system provided with a plurality of internal machines according to claim 1, characterized in that the external cooling system is an open cooling tower (7), the open cooling tower (7) and the liquid cooling plate (4) being connected by a plate heat exchanger (17).
3. The air conditioning system with a plurality of internal machines according to claim 1, characterized in that the external cooling system is a closed cooling tower (8), the heat exchange medium of the liquid cooling plate (4) is water, the liquid cooling plate is communicated with the closed cooling tower (8), and a liquid pump (18) is arranged between the liquid cooling plate (4) and the closed cooling tower (8).
4. The air conditioning system with a plurality of indoor units according to claim 1, wherein the external cooling system is the outdoor unit (9), the heat exchange medium of the liquid cooling plate (4) is a refrigerant, and the liquid cooling plate (4) is connected in parallel with the first evaporator (13).
5. An air conditioning system provided with a plurality of internal units according to any one of claims 1 to 4, characterized in that the first evaporator (13) comprises a plate heat exchanger provided with a first heat exchange channel communicating with the outdoor unit (9) and a second heat exchange channel communicating with the liquid cooling plate (4).
6. The air conditioning system equipped with a plurality of internal machines according to any one of claims 1 to 4, further comprising a water separator (2) and a water collector (3), wherein an inlet of the water separator (2) is connected to an outlet of the external cooling system, and an outlet of the water separator (2) is connected to inlets of a plurality of the liquid cooling plates (4);
the outlets of the liquid cooling plates (4) are connected with the inlet of the water collector (3), and the outlet of the water collector (3) is connected with the inlet of the external cooling system.
7. The air conditioning system provided with a plurality of internal machines according to claim 6, characterized in that the water separator (2) and the water collector (3) are arranged outside the server cabinet (6).
8. An air conditioning system provided with a plurality of internal units according to claim 1, characterized in that each back panel air conditioner (5) comprises a second evaporator, the heat exchange medium in the second evaporator is water, and the second evaporator is connected in parallel with the liquid cooling plate (4).
9. An air conditioning system provided with a plurality of internal units according to claim 1, characterized in that each back panel air conditioner (5) comprises a second evaporator, the heat exchange medium in the second evaporator being a refrigerant, the second evaporator being connected in parallel with the first evaporator (13).
10. The air conditioning system equipped with a plurality of internal units according to claim 8 or 9, wherein each back panel air conditioner (5) comprises a fan, the second evaporator is provided on one side of the server cabinet (6), and the fan is provided on the other side of the server cabinet (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311613126.1A CN117560908A (en) | 2023-11-28 | 2023-11-28 | Air conditioning system with multiple internal machines |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311613126.1A CN117560908A (en) | 2023-11-28 | 2023-11-28 | Air conditioning system with multiple internal machines |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024245255A1 (en) * | 2023-05-29 | 2024-12-05 | 华为技术有限公司 | Heat dissipation system and apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024245255A1 (en) * | 2023-05-29 | 2024-12-05 | 华为技术有限公司 | Heat dissipation system and apparatus |
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