CN221306343U - Liquid cooling air conditioner unit - Google Patents

Abstract

The application provides a liquid cooling air conditioner unit which is suitable for radiating a server unit and comprises a heat exchanger, a first pump body, a first electric valve, a first sensor, a second pump body, a second electric valve and a control part, wherein the heat exchanger comprises a first side and a second side, the first pump body is communicated with the first side to form a first loop, a first medium is filled in the first loop, the electric valve is arranged in the first loop, the second pump body is communicated with the second side to form a second loop, a second medium is filled in the second loop, and the second electric valve is arranged in the second loop. The first pump body drives the first medium to flow, and the first medium exchanges heat with the server unit. The first medium absorbs heat and rises temperature and flows to the heat exchanger, the first medium can transfer heat to the second medium of the second loop through the heat exchanger, and then the second medium transfers heat outdoors. The first medium driven by the first pump body and the second medium driven by the second pump body can be both liquid, so that the heat exchange effect is better.

Description

Liquid cooling air conditioner unit

Technical Field

The application relates to the technical field of large-scale outdoor refrigeration equipment, in particular to a liquid cooling air conditioner unit.

Background

With the vigorous development of the fields of Internet, network security and the like, a data center presents a high-speed, high-density and high-power consumption development situation, and a server unit of the data center works to generate heat which is accumulated in the server unit. The heat not only can influence the work efficiency of a plurality of subassemblies, can also have the potential safety hazard, seriously influences the daily use of server unit.

In the prior art, an air conditioner is generally adopted to dissipate heat for a server unit, and the air conditioner discharges cold air. The cool air passes through the server farm and carries heat away from the server farm surface. But the air has small specific heat capacity, low cold carrying capacity and large required air quantity, the air is difficult to bear a server unit with larger heating value, the heat dissipation problem of the server unit is difficult to completely solve, and the output power and the working efficiency of the server unit are also limited.

Disclosure of utility model

The application provides a liquid cooling air conditioner unit to at least partially improve the technical problems.

The application provides a liquid cooling air conditioner unit which is suitable for radiating a server unit and comprises a heat exchanger, a first pump body, a first electric valve, a first sensor, a second pump body, a second electric valve and a control part, wherein the heat exchanger comprises a first side and a second side, the first pump body is communicated with the first side to form a first loop, a first medium is filled in the first loop, the first pump body is used for providing power for flowing of the first medium, the electric valve is arranged in the first loop, the electric valve is used for adjusting the flow rate of the first medium, the first sensor is arranged in the first loop and used for collecting the fluid information of the first medium flowing through the first loop, the second pump body is communicated with the second side to form a second loop, the second medium is filled in the second loop, the second pump body is used for providing power for flowing of the second medium, the second electric valve is arranged in the second loop, the second electric valve is used for adjusting the flow rate of the second medium, and the control part is electrically connected with the first sensor, the first pump body, the second pump body, the first electric valve and the second electric valve.

In one embodiment, the number of the liquid cooling air conditioning units is at least two, the first loops of the at least two liquid cooling air conditioning units are connected in parallel, and the at least two liquid cooling air conditioning units are used for radiating heat for the same server unit.

In one embodiment, the control units of at least two liquid-cooled air conditioning units are electrically connected to each other.

In one embodiment, at least two liquid-cooled air conditioning units are configured such that at least one liquid-cooled air conditioning unit dissipates heat to a server unit at the same time.

In one embodiment, the fluid information includes a pressure value of the first medium, the control portion is configured to control the first pump body lowering frequency and/or the electric valve lowering opening degree when the pressure value is higher than a set threshold value, and the control portion is further configured to control the first pump body raising frequency and/or the electric valve raising opening degree when the pressure value is lower than the set threshold value.

In one embodiment, the liquid cooling air conditioning unit further comprises a housing, the housing comprises a front panel and a rear panel opposite to each other, the control portion is disposed on the front panel, and the rear panel is provided with an access opening.

In one embodiment, the liquid cooling air conditioner unit further includes a cooling fan, the cooling fan is disposed on the housing, the control portion is located in an air path formed by driving air flow of the cooling fan, and the cooling fan is electrically connected with the control portion.

In one embodiment, the liquid cooling air conditioning unit further comprises a second sensor, the second sensor is arranged on the shell, and the second sensor is used for acquiring environmental parameters of the liquid cooling air conditioning unit.

In one embodiment, the environmental parameter includes an environmental temperature, the second sensor is electrically connected to the control unit, the control unit is configured to control the cooling fan to be turned on when the environmental temperature is higher than a set threshold, and the control unit is further configured to control the cooling fan to be turned off when the environmental temperature is less than or equal to the set threshold.

In one embodiment, the liquid-cooled air conditioning unit further comprises a degasser, the degasser being in communication with the first circuit, the first medium flowing through the degasser.

The application provides a liquid cooling air conditioner unit, wherein a first pump body drives a first medium to flow, and the first medium exchanges heat with a server unit. The first medium absorbs heat and rises temperature and flows to the first side of the heat exchanger, and the second side of the heat exchanger is arranged in the second loop. The first medium can transfer heat to the second medium of the second loop through the heat exchanger, and then the heat is transferred to the outside through the second medium, so that the heat transfer is realized. The first medium driven by the first pump body and the second medium driven by the second pump body can be in liquid state, so that the heat carrying capacity is stronger, the heat exchange effect is better, and the use safety of the server unit is ensured. The use of the refrigerant is avoided, the use of equipment such as a compressor, a fan and the like can be reduced, and the working noise of the liquid cooling air conditioning unit is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a liquid cooling air conditioning unit and a server unit according to the present application;

FIG. 2 is a schematic diagram of a structure of another liquid-cooled air conditioner unit and a server unit according to the present application;

FIG. 3 is a schematic diagram of a liquid cooling air conditioning unit according to the present application;

FIG. 4 is a schematic diagram of another liquid-cooled air conditioning unit according to the present application;

FIG. 5 is a schematic view of a structure of a liquid-cooled air conditioning unit according to another embodiment of the present application;

FIG. 6 is a schematic view of a still further embodiment of a liquid-cooled air conditioning unit according to the present application;

FIG. 7 is a schematic diagram of a liquid-cooled air conditioning unit according to another embodiment of the present application;

FIG. 8 is a schematic diagram of a structure of a liquid-cooled air conditioner unit and a server unit according to another embodiment of the present application;

Fig. 9 is a schematic structural diagram of a liquid cooling air conditioning unit according to another aspect of the present application.

Reference numerals: the liquid-cooled air conditioning unit 10, the heat exchanger 11, the first side 111, the second side 112, the first circuit 113, the second circuit 114, the first pump body 12, the first sensor 13, the first electric valve 141, the second electric valve 142, the second pump body 15, the control unit 16, the processor 161, the memory 162, the housing 17, the front panel 171, the rear panel 172, the access port 173, the cooling fan 18, the second sensor 19, the server unit 20, the partition board 30, and the cooling source 40.

Detailed Description

In order to make the present application better understood by those skilled in the art, the following description of the present application will be made in detail with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the application. All other embodiments, based on the embodiments of the application, which a person skilled in the art would obtain without making any inventive effort, are within the scope of the application.

In the present application, the terms "mounted," "connected," "secured," and the like are to be construed broadly unless otherwise specifically indicated or defined. For example, the connection can be fixed connection, detachable connection or integral connection; can be mechanically or electrically connected; the connection may be direct, indirect, or internal, or may be surface contact only, or may be surface contact via an intermediate medium. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for understanding as a specific or particular structure. The description of the terms "some embodiments," "other embodiments," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In the present application, the schematic representations of the above terms are not necessarily for the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples of the present application and features of various embodiments or examples may be combined and combined by those skilled in the art without contradiction.

With the vigorous development of the fields of Internet, network security and the like, a data center presents a high-speed, high-density and high-power consumption development situation, and a server unit of the data center works to generate heat which is accumulated in the server unit. The heat not only can influence the work efficiency of a plurality of subassemblies, can also have the potential safety hazard, seriously influences the daily use of server unit.

In the prior art, an air conditioner is generally adopted to dissipate heat for a server unit, and the air conditioner discharges cold air. The cool air passes through the server farm and carries heat away from the server farm surface. But the air has small specific heat capacity, low cold carrying capacity and large required air quantity, the air is difficult to bear a server unit with larger heating value, the heat dissipation problem of the server unit is difficult to completely solve, and the output power and the working efficiency of the server unit are also limited.

Examples

Referring to fig. 1, a liquid cooling air conditioning unit 10 is shown in the embodiment of the present application, and the liquid cooling air conditioning unit 10 is suitable for cooling a server unit 20. The liquid-cooled air conditioning unit 10 is powered on and the first medium flows from the liquid-cooled air conditioning unit to the server unit 20. The server farm 20 is operated to generate heat, the server farm 20 exchanges heat with the first medium, and the heat is transferred to the first medium. The server farm 20 may be a stand-alone server, a cluster server, a server farm, or the like. Depending on the classification, the server group 20 may be a tower server, a rack server, a blade server, or the like. The design and the selection may be performed according to specific implementation scenarios, use requirements, etc., and the embodiment is not limited. In one embodiment, the first medium may be an insulating material, for example, the first medium may be a fluorinated solution, and the surface of the server set 20 is protected, so that the server set 20 is directly immersed in the cooling liquid, and heat generated by running devices such as a server is taken away by means of flowing circulation of the liquid. Since the server farm 20 is in direct contact with the first medium, the heat dissipation efficiency is higher and the noise is lower.

In another embodiment, referring to fig. 2, the first medium may be pure water, so as to save heat dissipation cost. The surface of the server farm 20 is provided with a partition plate 30, and heat generated by the server farm 20 is transferred to the partition plate 30. The metal partition plate 30 can be used as the partition plate 30, so that the heat conduction efficiency is improved. The first medium can flow through the partition board 30 through the pipeline to be far away from the surface of the server unit 20, and the heat on the partition board 30 is carried away together, so that the heat dissipation effect is realized. Because the server set 20 is in indirect contact with the first medium, the protection effect on the server set 20 is better, and the safety of the server set 20 can be improved.

The heat dissipation method and the first medium may be selected differently according to the heating value and the use cost of the server farm 20, and the present embodiment is not limited.

In order to improve the heat dissipation effect of the liquid cooling air conditioning unit 10, high decibel noise is generated when devices such as a compressor and a fan of a common air conditioner work, and influences on working environments and the like caused by daily use. Referring to fig. 3 and 4, the liquid-cooled air conditioner 10 includes a heat exchanger 11, a first pump body 12, a first sensor 13, a first electric valve 141, a second pump body 15, a control unit 16, and a second electric valve 142. The heat exchanger 11 may be a plate heat exchanger or the like, the heat exchanger 11 includes a first side 111 and a second side 112, heat transfer can be performed between the first side 111 and the second side 112, the first pump body 12 is communicated with the first side 111 to form a first loop 113, a first medium is filled in the first loop 113, and the first pump body 12 is disposed in the first loop 113 and is used for providing power for flowing the first medium. The first pump body 12 may be a centrifugal pump, a plunger pump, a gear pump, or the like, and the first pump body 12 may be selected according to the nature of the first medium, the flow rate requirement, the pressure requirement, the working environment, or the like, which is not limited in this embodiment. In one embodiment, the working frequency of the first pump body 12 is adjustable, that is, the flow rate of the first medium in the first pump body 12 is adjustable, so as to ensure that the flow rate of the first medium meets the use requirement. It can be understood that, under the conditions of standby of the server unit 20, the heat productivity is small, the first pump body 12 can be closed or the working frequency of the first pump body 12 can be reduced, and the heat can be conducted through the first medium, so that the energy loss is reduced, and the energy utilization rate is improved.

The first sensor 13 is disposed in the first circuit 113, and the first sensor 13 is configured to collect fluid information of the first medium flowing through the first circuit 113. The first sensor 13 may include one or more of a flow rate sensor, a temperature sensor, a pressure sensor, and a conductivity meter. The fluid information that may be collected by the first sensor 13 includes parameters such as refrigeration capacity, refrigeration load, flow rate, temperature, pressure, and conductivity. In the liquid-cooled air conditioner 10, the cooling capacity can be calculated by using information such as the temperature difference between both ends of the first circuit 113 and the flow rate of the first medium. The refrigeration load can be calculated according to a certain rule according to information such as the actual load power of a corresponding loop. The flow rate, temperature, pressure and conductivity can be obtained directly by the first sensor 13.

In one embodiment, when the server farm 20 is in direct contact with the first medium, there is a risk of using the server farm 20 in order to avoid an increase in the electrical conductivity of the first medium due to the ingress of other substances. The conductivity of the first medium can be obtained in real time, and when the conductivity of the first medium exceeds a certain safety range, operations such as alarm and the like are performed.

In another embodiment, a display screen or other devices may be disposed on the liquid cooling air conditioning unit 10, where the display screen may be electrically connected to the first sensor 13 and the control portion 16, and the display screen may be used to display parameters such as the cooling capacity, the cooling load, the water flow, the water temperature, and the water pressure of the first circuit 113, so as to be used in the situations such as maintenance of staff.

The first electrically operated valve 141 is disposed in the first circuit 113, and the first electrically operated valve 141 is operable to regulate a flow rate of the first medium in the first circuit. In one embodiment, the on-off state of the first circuit 113 may be further changed by changing the circuit connection state of both ends of the first electric valve 141. The energized state and the de-energized state of the first electrically operated valve 141 correspond to on and off in the first circuit 113, respectively, and the first electrically operated valve 141 can be ensured to be closed in the event of de-energized. After the liquid cooling air conditioning unit 10 stops working in the power-off state, the first medium in the liquid cooling air conditioning unit 10 is prevented from circulating still, and the waste of the first medium is avoided. In another embodiment, the opening degree of the first electric valve 141 is adjustable, and the opening degree of the first electric valve 141 refers to the maximum degree that the valve body of the first electric valve 141 can be opened when operating, and the larger the opening degree of the first electric valve 141, the larger the flow rate of the first medium that can pass through the first electric valve 141.

Referring to fig. 5, in a more specific embodiment, the first electrically operated valve 141 may be a three-way electrically operated valve. The three-way electric valve may be disposed at an inlet of the server farm 20, and one end of the three-way electric valve is connected to the heat exchanger 11, and the other end is connected to the inlet of the server farm 20, and is bypassed at a connection between the first pump body 12 and an outlet of the server farm 20, so that the first circuit 113 has a first branch 115, the first branch 115 may be connected in parallel with the server farm 20, and the first medium may flow directly from the first branch 115 back to the pump body until the heat exchanger 11. Alternatively, the first electric valve 141 may change the flow ratio of the first medium flowing into the server farm 20 and the first branch 115, thereby changing the heat dissipation effect of the liquid cooling air conditioner farm 10.

The first medium in the first circuit 113 may flow through the heat exchanger 11, and heat of the first medium may be transferred to the heat exchanger 11. The temperature of the first medium is reduced by the heat exchanger 11. With continued reference to fig. 3 and 4, the second pump body 15 is connected to the second side 112 of the heat exchanger 11 to form a second circuit 114, and the second circuit 114 may be filled with a liquid such as purified water, softened water, and an antifreeze solution as a second medium. The second circuit 114 is filled with a second medium, the second pump body 15 is used for providing power for flowing the second medium, the second pump body 15 may be a centrifugal pump, a plunger pump, a gear pump, or the like, and the second pump body 15 may be selected according to the properties of the second medium, the flow requirement, the pressure requirement, the working environment, or the like, which is not limited in this embodiment. The second medium is driven by the second pump body 15 so that the second medium flows to the heat exchanger 11. Since the first side 111 of the heat exchanger 11 communicates with the first circuit 113, the first side 111 is adapted to exchange heat with the first medium in the first circuit 113. The second medium can absorb the heat transferred by the first medium in the second side 112 of the heat exchanger 11, so as to cool the first medium to achieve the purpose of refrigeration, the temperature of the second medium is increased, and the second medium is driven by the second pump body 15 to be transmitted to the outdoor cold source 40. The cold source 40 may be a cooling tower, and the cooling tower may be a cross-flow cooling tower, or a counter-flow cooling tower, which is not limited in this embodiment. Under the influence of the cold source 40, the temperature of the second medium will decrease, and the second pump body 15 will absorb the cooled second medium from the cold source 40 and transport it to the heat exchanger 11 for cyclic reciprocation.

The second circuit 114 is further provided with a second electric valve 142, etc., which is provided in the second circuit 114, and is used for adjusting the flow rate of the second medium, and the on-off state of the first circuit 113 can be further changed by changing the circuit connection state of the two ends of the second electric valve 142. The energized state and the de-energized state of the second electrically operated valve 142 correspond to on and off in the second electrically operated valve 142, respectively, and the second electrically operated valve 142 can be ensured to be closed in the event of de-energization. In another embodiment, the opening degree of the second electrically operated valve 142 is adjustable, and the opening degree of the second electrically operated valve 142 refers to the maximum degree that the valve body of the second electrically operated valve 142 can be opened during operation, and the larger the opening degree of the second electrically operated valve 142, the larger the flow rate of the second medium that can pass through the second electrically operated valve 142.

Referring to fig. 4, 6 and 7, the control portion 16 is electrically connected to the first sensor 13, the first pump body 12, the second pump body 15, the first electric valve 141 and the second electric valve 142, the first sensor 13 can transmit the fluid information of the first medium to the control portion 16, the control portion 16 can perform logic analysis by using the fluid information, and the operating states of the first pump body 12, the second pump body 15, the first electric valve 141 and the second electric valve 142 are adjusted according to the logic analysis result.

In one embodiment, the fluid information may include a pressure value of the first medium, which may be a pressure difference between the first medium flowing into the server farm 20 and the first medium flowing out of the server farm 20. The pressure value of the first medium is required to be kept within a certain safety range in terms of safety and normal operation of the liquid-cooled air conditioning unit 10. The control unit 16 is configured to control the first pump body 12 to decrease the frequency so that the flow rate of the first medium in the first circuit 113 increases when the pressure value is higher than the set threshold value. Illustratively, and when the number of server farms 20 decreases and/or the load of a single server farm 20 decreases, the pressure value of the first medium rises to 6bar, the set threshold is 3bar to 5bar, the pressure value of the first medium is higher than the set threshold, and the control portion 16 controls the first pump body 12 to decrease the frequency. Under the influence of the first pump body 12, the flow rate of the first medium decreases, and the pressure value of the first medium decreases. When the pressure value is higher than the set threshold value, the frequency of the first pump body 12 is maintained unchanged, and the control unit 16 may control the first electric valve 141 to increase the opening, so that the flow rate of the first medium is also increased, and the pressure value of the first medium is correspondingly decreased.

The control portion 16 is also configured to control the first pump body 12 to increase the frequency when the pressure value is less than the set threshold value. For example, when the number of server units 20 increases and/or the load of the single server unit 20 increases, the pressure value of the first medium decreases to 2bar, the set threshold is 3bar to 5bar, the pressure value of the first medium is lower than the set threshold, and the control portion 16 controls the first pump body 12 to increase in operating frequency. Under the influence of the first pump body 12, the flow rate of the first medium increases, and the pressure value of the first medium increases. When the pressure value is higher than the set threshold value and the operating frequency of the first pump body 12 is maintained unchanged, the control unit 16 may further control the first electric valve 141 to increase the opening, so that the flow rate of the first medium is also increased and the pressure value of the first medium is correspondingly increased.

It is understood that the control portion 16 may control the first pump body 12 and the first electric valve 141 at the same time, or the control portion 16 may control one of the first pump body 12 and the first electric valve 141. The setting may be set according to the specific implementation, the use requirement, and the specific pressure value in the first circuit 113, and the embodiment is not limited. For example, and when the operating state and operating frequency of the first pump body 12 cannot be easily changed, it is preferable that the pressure value in the first circuit 113 can be adjusted by changing the opening degree of the first electric valve 141.

The above-mentioned set threshold may be a set threshold set by an internal program of the control unit 16, or may be a set threshold set by a user himself, and is not limited thereto.

In another embodiment, the temperature of the first medium may also pass through the first pump body 12, the second pump body 15, and the first electrically operated valve 141. The temperature of the first medium may be the temperature of the first medium flowing out of the heat exchanger 11 from the first circuit 113, or the temperature of the first medium may be the temperature of the first medium flowing out of the server farm 20 from the first circuit 113. For example, when the temperature of the first medium is higher than the set temperature range, the control portion 16 may control the working frequency of the first pump body 12 and/or the second pump body 15 to increase, the flow rate of the first medium in the first circuit 113 and/or the second medium in the second circuit 114 to increase, the heat exchange frequency of the first medium and the heat exchange amount to increase, the heat exchange effect of the heat exchanger on the first medium to increase, the temperature of the first medium to decrease, or the opening degree of the first electrically operated valve 141 and/or the second electrically operated valve 142 to increase, and the flow rate of the first medium in the first circuit 113 and/or the second medium in the second circuit 114 to further realize the temperature decrease of the first medium. When the temperature of the first medium is lower than the set temperature range, the control portion 16 may control the working frequency of the first pump body 12 and/or the second pump body 15 to decrease, the flow rate of the first medium in the first circuit 113 and/or the second medium in the second circuit 114 to decrease, the heat exchange amount of the first medium and the heat exchanger to decrease, the heat exchange effect of the heat exchanger on the first medium to decrease, the temperature of the first medium to increase, or the opening degree of the first electric valve 141 and/or the second electric valve 142 to decrease, and the flow rate of the first medium in the first circuit 113 and/or the second medium in the second circuit 114 to decrease, thereby realizing the temperature increase of the first medium.

The control section 16 may include one or more processors 161 (only one is shown in fig. 6) and a memory 162 coupled to each other. Referring to fig. 6, the control unit 16 is described as an example:

Processor 161 may include one or more processing cores. The processor 161 connects various parts within the entire liquid-cooled air conditioning unit 10 using various interfaces and lines, and performs various functions and processes data of the liquid-cooled air conditioning unit 10 by executing or executing instructions, programs, code sets, or instruction sets stored in the memory 162, and calling data stored in the memory 162.

Memory 162 may include random access Memory (Random Access Memory, RAM) or Read-On-l-y Memory. Memory 162 may be used to store instructions, programs, code sets, or instruction sets.

In one embodiment, the control portion 16 may be electrically connected to other devices, and the control portion 16 may transmit fluid information to the other devices, and a worker may operate the control portion 16 through the other devices, thereby controlling the operation state of the liquid-cooled air conditioning unit 10. Other devices include, but are not limited to, mobile devices, control panels, and the like.

The situation that the server unit 20 is stopped and the like caused by the fact that the liquid cooling air conditioner unit 10 singly fails and the refrigerant cannot be continuously supplied is avoided. Referring to fig. 6 and 8, the number of the liquid-cooled air-conditioning units 10 may be at least two, and the at least two liquid-cooled air-conditioning units 10 are used for radiating heat for the same server unit 20. At least two liquid cooling air conditioning units 10 can radiate heat for the same server, and when one liquid cooling air conditioning unit 10 fails to work, the rest liquid cooling air conditioning units 10 still provide a first medium, so that the server units 20 can work normally. Specifically, at least two liquid-cooled air conditioner units 10 are configured such that at the same time, at least one liquid-cooled air conditioner unit 10 radiates heat to the server unit 20. When the load of the server unit 20 is large, the amount of heat generated is large, and the plurality of control units 16 can be controlled to simultaneously control the plurality of liquid-cooled air-conditioning units 10 to dissipate heat. When the load of the server unit 20 is small, the heat generation amount is small, and one of the plurality of control units 16 can be controlled to enable the corresponding liquid cooling air conditioner unit 10 to start heat dissipation. It can be understood that when the selectively operated liquid cooling air conditioner 10 fails, the remaining control units 16 can be controlled to continue heat dissipation by the corresponding liquid cooling air conditioner 10. The redundant arrangement of the liquid cooling air conditioning unit 10 not only can improve the refrigerating effect, but also can ensure the normal operation of the server unit 20. It can be understood that fig. 8 only shows a refrigeration structure in which indirect contact is adopted between the server unit 20 and the first media of at least two liquid cooling air conditioning units 10, and the server unit 20 may also adopt a refrigeration structure in which direct contact is adopted between the server unit 20 and the first media of at least two liquid cooling air conditioning units 10.

Preferably, the first loops 113 of at least two liquid cooling air conditioning units 10 are connected in parallel, and have no influence on each other. For example, when one of the at least two liquid cooling air conditioning units 10 performs heat dissipation operation, the control portion 16 of the remaining liquid cooling air conditioning units 10 may control the first electric valve 141 to be closed, so as to prevent the first medium from entering the liquid cooling air conditioning unit 10 that is not in operation, and avoid affecting the liquid cooling air conditioning unit 10 in operation.

In this embodiment, referring to fig. 3, 7 and 9, the liquid cooling air conditioning unit 10 further includes a housing 17, where the housing 17 may be a metal housing, and the strength of the metal housing is high, so that the protection performance of the liquid cooling air conditioning unit 10 can be improved, and the stable operation of the liquid cooling air conditioning unit 10 is ensured. The metal casing has good heat conduction effect, and the heat in the liquid cooling air conditioning unit 10 can be conducted outwards from the casing 17, so that internal heat accumulation is avoided.

The housing 17 includes opposing front and rear panels 171, 172. In one embodiment, the control portion 16 is disposed on the front panel 171, the rear panel 172 is provided with an access port 173, the heat exchanger 11 and other devices on the first and second circuits 113 and 114, etc. may be disposed adjacent to the access port 173, and the access port 173 may be opened or closed. After opening access port 173, a worker may inspect and maintain heat exchanger 11 and other devices on first circuit 113 and second circuit 114, etc. And when the maintenance is completed, the maintenance port 173 can be closed to ensure that the internal air pressure of the liquid cooling air conditioning unit 10 is stable. The liquid-cooled air conditioning unit 10 further includes a radiator fan 18, the radiator fan 18 is disposed in the housing 17, and the control unit 16 is located in an air path formed by the airflow driven by the radiator fan 18. Illustratively, the cooling fan 18 is provided to the front panel 171, and the access port 173 may be provided with a grill or the like. The heat dissipation fan 18 drives the air flow, the air flow flows through the control portion 16, and the air flow exchanges heat with the control portion 16 to form a hot air flow. The hot air flows out through the grille to complete the heat dissipation of the control part 16, and the use safety of the liquid cooling air conditioning unit 10 is ensured. It is understood that the access port 173 may be provided with a grill, mesh, etc., and that the access port 173 may be in communication with an airflow, and the present embodiment is not limited.

In one embodiment, referring to fig. 6 and fig. 7, the cooling fan 18 is electrically connected to the control unit 16, the liquid-cooled air conditioning unit 10 further includes a second sensor 19, the second sensor 19 may include a flow rate sensor, a temperature sensor, an air pressure sensor, and the like, the second sensor 19 may be disposed on the housing 17, and the second sensor 19 is used to obtain environmental parameters of the liquid-cooled air conditioning unit 10, where the environmental parameters may include a flow rate, a temperature, and a pressure of an air flow inside the liquid-cooled air conditioning unit 10. The second sensor 19 is electrically connected to the control unit 16, and the control unit 16 can obtain an environmental parameter of the liquid cooling air conditioning unit 10 and change the operating state of the cooling fan 18 according to the environmental parameter. The control part 16 can acquire the internal condition of the liquid cooling air conditioning unit 10 through the second sensor 19, so that the abnormal condition of the liquid cooling air conditioning unit 10 is avoided, and the use safety of the liquid cooling air conditioning unit 10 is further improved.

In a more specific embodiment, the environmental parameter includes an environmental temperature, and the control unit 16 is configured to control the cooling fan 18 to be turned on when the environmental temperature is higher than a set threshold, so as to reduce the temperature of the control unit 16 in the liquid-cooled air conditioning unit 10, and ensure that the liquid-cooled air conditioning unit 10 operates normally. And the control part 16 is also used for controlling the cooling fan 18 to be turned off when the ambient temperature is less than or equal to the set threshold value, so that energy sources can be saved and energy consumption can be reduced. The above-mentioned set threshold may be a set threshold established by the control unit 16 or a set threshold set by the user himself, and is not limited thereto.

In another embodiment, the ambient temperature may also include ambient humidity, air quality, etc., and the control section 16 controls the operation of the cooling fan 18 according to the ambient temperature and air quality. Illustratively, the control part 16 may control the cooling fan 18 to rotate reversely, and the cooling fan 18 may draw air toward the external space, so that the humid air inside the liquid cooling air conditioner 10 is discharged, the ambient humidity inside the liquid cooling air conditioner 10 is reduced, and the working safety of the internal charging device is ensured. The air quality including the amount of fine particulate matter in the air and the like can also be improved by reversing the cooling fan 18.

In this embodiment, in order to ensure the normal operation of the liquid-cooled air conditioner 10, the first circuit 113 and/or the second circuit 114 is provided with at least one of a pressure stabilizing device and a filtering device, and the following description will be made with reference to the first circuit 113. The filter means may be a panel filter, a bag filter, a cartridge filter or the like. The pressure stabilizing device and the filtering device are arranged on the first loop 113, and the filtering device is used for filtering the first medium. On the first circuit 113, the filtering device may be disposed before the first pump body 12. Impurities and the like in the first medium can be blocked by the filtering device, so that the impurities cannot enter the first pump body 12, and the safety of the first pump body 12 is ensured. The pressure stabilizing device may be an expansion tank, a liquid storage device, etc., the pressure in the first circuit 113 increases, the pressure of the first medium in the expansion tank increases, and the air volume in the expansion tank decreases, so as to reduce the pressure in the first circuit 113, and make the pressure in the first circuit 113 tend to be dynamically stable within a certain range.

The first circuit 113 is further provided with a degasser, which may be a vacuum degasser, a foam degasser, a membrane degasser, etc. The degasser may be, for example, a vacuum degasser, wherein a vacuum is created to lower the boiling point of the first medium, degasse the gas in the first medium, and vent the degassed gas through a vent valve of the degasser. The deaeration device can exhaust the gas in the first loop 113, so as to avoid the phenomena of poor heat exchange efficiency, even cavitation failure of the water pump, and the like of the liquid cooling air conditioner unit 10 caused by the residual air in the first loop 113. Further improving the safety of use of the first pump body 12.

Preferably, the first medium and the second medium may generate loss in the flowing process, and the first loop 113 and the second loop 114 may be provided with fluid-filling tanks, where the fluid-filling tanks may be used to provide the first medium for the first loop 113 and the second medium for the second loop 114, so as to ensure that the first loop 113 and the second loop 114 can work normally, and ensure the heat dissipation effect of the liquid-cooled air conditioning unit 10.

In the liquid cooling air conditioner unit 10 provided by the application, the first pump body 12 drives the first medium to flow, and the first medium exchanges heat with the server unit 20. The first medium absorbs heat and warms up and flows to the first side 111 of the heat exchanger 11, the second side 112 of the heat exchanger 11 being arranged in the second circuit 114. The first medium can transfer heat to the second medium of the second loop 114 through the heat exchanger 11, and then transfer heat to the outside through the second medium, so that heat transfer is realized. The first medium driven by the first pump body 12 and the second medium driven by the second pump body 15 can be both liquid, so that the heat carrying capacity is stronger, the heat exchange effect is better, and the use safety of the server unit 20 is ensured. The use of the refrigerant is avoided, so that the use of high-noise equipment such as a compressor, a fan and the like can be reduced, and the working noise of the liquid cooling air conditioning unit 10 is reduced.

The above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and they should be included in the protection scope of the present application.

Claims (10)

1. A liquid-cooled air conditioning unit adapted to dissipate heat from a server unit, the liquid-cooled air conditioning unit comprising:

A heat exchanger comprising a first side and a second side;

The first pump body is communicated with the first side to form a first loop, a first medium is filled in the first loop, and the first pump body is used for providing power for the flow of the first medium;

The first electric valve is arranged in the first loop and is used for adjusting the flow of the first medium;

The first sensor is arranged in the first loop and is used for collecting fluid information of a first medium flowing through the first loop;

The second pump body is communicated with the second side to form a second loop, a second medium is filled in the second loop, and the second pump body is used for providing power for the flow of the second medium;

the second electric valve is arranged in the second loop and is used for adjusting the flow of the second medium; and

And the control part is electrically connected with the first sensor, the first pump body, the second pump body, the first electric valve and the second electric valve.

2. The liquid cooling air conditioner set according to claim 1, wherein the number of the liquid cooling air conditioner sets is at least two, the first loops of the at least two liquid cooling air conditioner sets are connected in parallel with each other, and the at least two liquid cooling air conditioner sets are used for radiating heat for the same server set.

3. The liquid-cooled air conditioning unit according to claim 2, wherein the control portions of at least two of the liquid-cooled air conditioning units are electrically connected to each other.

4. The liquid-cooled air conditioning unit according to claim 3, wherein at least two of the liquid-cooled air conditioning units are configured such that at the same time at least one of the liquid-cooled air conditioning units dissipates heat to the server unit.

5. The liquid-cooled air conditioner set according to claim 1, wherein the fluid information includes a pressure value of the first medium, the control section is configured to control the first pump body lowering frequency and/or the electric valve lowering opening degree when the pressure value is higher than a set threshold value, and the control section is further configured to control the first pump body raising frequency and/or the electric valve raising opening degree when the pressure value is smaller than the set threshold value.

6. The liquid cooling air conditioner set according to claim 5, further comprising a housing including a front panel and a rear panel opposite to each other, wherein the control portion is provided in the front panel, and wherein the rear panel is provided with an access opening.

7. The liquid-cooled air conditioner set according to claim 6, further comprising a radiator fan, wherein the radiator fan is disposed in the housing, the control portion is located in a wind path formed by a driving airflow of the radiator fan, and the radiator fan is electrically connected to the control portion.

8. The liquid cooling air conditioning unit of claim 7, further comprising a second sensor disposed in the housing, the second sensor configured to obtain an environmental parameter of the liquid cooling air conditioning unit.

9. The liquid cooling air conditioner set according to claim 8, wherein the environmental parameter includes an environmental temperature, the second sensor is electrically connected to the control portion, the control portion is configured to control the cooling fan to be turned on when the environmental temperature is higher than a set threshold, and the control portion is further configured to control the cooling fan to be turned off when the environmental temperature is lower than or equal to the set threshold.

10. The liquid cooled air conditioning unit of claim 1, further comprising a degasser, wherein the degasser is in communication with the first circuit, wherein the first medium flows through the degasser.