CN113551551A - Refrigeration method and refrigeration system - Google Patents
Refrigeration method and refrigeration system Download PDFInfo
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- CN113551551A CN113551551A CN202110970543.6A CN202110970543A CN113551551A CN 113551551 A CN113551551 A CN 113551551A CN 202110970543 A CN202110970543 A CN 202110970543A CN 113551551 A CN113551551 A CN 113551551A
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000001816 cooling Methods 0.000 claims abstract description 151
- 239000007788 liquid Substances 0.000 claims abstract description 97
- 239000003507 refrigerant Substances 0.000 claims abstract description 81
- 238000012546 transfer Methods 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000002826 coolant Substances 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 31
- 230000005494 condensation Effects 0.000 claims description 11
- 238000009833 condensation Methods 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 239000000110 cooling liquid Substances 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 8
- 230000001276 controlling effect Effects 0.000 claims description 5
- 230000008569 process Effects 0.000 abstract description 14
- 239000002699 waste material Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 21
- 230000001965 increasing effect Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
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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
- H05K7/208—Liquid cooling with phase change
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0028—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cooling heat generating elements, e.g. for cooling electronic components or electric devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0061—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for phase-change applications
- F28D2021/0063—Condensers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mechanical Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The disclosure provides a refrigeration method and a refrigeration system, relates to the field of data centers, and particularly relates to the technical field of refrigeration. The specific implementation scheme is as follows: the refrigeration method is applied to a refrigeration system, and the refrigeration system comprises: condensing equipment and liquid cooling rack, condensing equipment includes first heat transfer pipeline, be equipped with second heat transfer pipeline and insulating coolant liquid in the liquid cooling rack, first heat transfer pipeline with second heat transfer pipeline intercommunication, just first heat transfer pipeline intussuseption is filled with the refrigerant, the method includes: controlling the refrigerant to circulate between the first heat exchange line and the second heat exchange line; and introducing cooling air with the temperature lower than the preset temperature into the condensing device, and enabling the cooling air to flow through the outer wall of the first heat exchange pipeline so as to cool the refrigerant in the first heat exchange pipeline. The refrigeration system can reduce water resource waste in the refrigeration process.
Description
Technical Field
The present disclosure relates to the field of data centers, and more particularly to the field of refrigeration technology.
Background
The existing data center generally comprises various cabinets, a large amount of heat is usually generated by the various cabinets in the working process, and if the cabinets are not cooled in time, the cabinets can be possibly broken down. For this reason, in the prior art, a dedicated refrigeration device is usually adopted to cool the cabinet, for example, a cooling fan is disposed in the cabinet, so as to keep the temperature of the cabinet within a normal range.
Disclosure of Invention
The present disclosure provides a refrigeration method and a refrigeration system.
In a first aspect, the present disclosure provides a refrigeration method applied to a refrigeration system, the refrigeration system comprising: condensing equipment and liquid cooling rack, condensing equipment includes first heat transfer pipeline, be equipped with second heat transfer pipeline and insulating coolant liquid in the liquid cooling rack, first heat transfer pipeline with second heat transfer pipeline intercommunication, just first heat transfer pipeline intussuseption is filled with the refrigerant, the method includes:
controlling the refrigerant to circulate between the first heat exchange line and the second heat exchange line;
and introducing cooling air with the temperature lower than the preset temperature into the condensing device, and enabling the cooling air to flow through the outer wall of the first heat exchange pipeline so as to cool the refrigerant in the first heat exchange pipeline.
In a second aspect, the present disclosure provides a refrigeration system comprising: a condensing unit and a liquid-cooled cabinet;
the condensing device comprises a shell, a first heat exchange pipeline, a first fan and a sprayer, wherein the shell comprises an air inlet and an air outlet, the first heat exchange pipeline and the sprayer are respectively arranged in the shell, a water spray opening of the sprayer is arranged towards the air inlet, the first fan is arranged at the air outlet, and an air inlet end of the first fan is positioned in the shell;
the liquid cooling cabinet is internally provided with a second heat exchange pipeline and insulating cooling liquid, the first heat exchange pipeline is communicated with the second heat exchange pipeline, and the first heat exchange pipeline is filled with a refrigerant.
According to the technical scheme of the disclosure, the cooling air with the temperature lower than the preset value is introduced into the condensing device, so that the cooling air cools the refrigerant in the first heat exchange pipeline, and the refrigerant is driven to circularly flow between the first heat exchange pipeline and the second heat exchange pipeline, so that the process of refrigerating the internal environment of the liquid cooling cabinet is realized. The process does not need to consume water resources, so the method can be suitable for water-deficient areas.
It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present disclosure, nor do they limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description.
Drawings
The drawings are included to provide a better understanding of the present solution and are not to be construed as limiting the present disclosure. Wherein:
FIG. 1 is a flow chart of a method of refrigeration provided by the present disclosure;
FIG. 2 is one of the schematic structural diagrams of a refrigeration system provided by the present disclosure;
FIG. 3 is a second schematic view of a refrigeration system according to the present disclosure;
FIG. 4 is a schematic structural diagram of a condensing unit in an embodiment of the disclosure;
FIG. 5 is a schematic diagram of a liquid-cooled cabinet according to an embodiment of the disclosure;
FIG. 6 is a schematic structural diagram of a first heat exchange circuit according to an embodiment of the disclosure;
FIG. 7 is a second schematic structural view of a first heat exchange circuit according to an embodiment of the disclosure;
fig. 8 is a schematic view of a connection relationship between a liquid-cooled cabinet and a transmission pipeline in an embodiment of the disclosure.
Detailed Description
Exemplary embodiments of the present disclosure are described below with reference to the accompanying drawings, in which various details of the embodiments of the disclosure are included to assist understanding, and which are to be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present disclosure. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
Referring to fig. 1, a flow chart of a refrigeration method provided by the present disclosure is shown, and fig. 2 is a schematic structural diagram of a refrigeration system provided by the present disclosure, in which the refrigeration method is applied to the refrigeration system, and the refrigeration system includes: condensing unit 100 and liquid cooling rack 200, condensing unit 100 includes first heat exchange pipeline 110, be equipped with second heat exchange pipeline 210 and insulating coolant 220 in the liquid cooling rack 200, first heat exchange pipeline 110 with second heat exchange pipeline 210 intercommunication, and first heat exchange pipeline 110 intussuseption is filled with the refrigerant, the method includes following step:
step S101, controlling the refrigerant to circulate between the first heat-exchange line 110 and the second heat-exchange line 210.
For example, referring to fig. 5, in an embodiment of the present disclosure, the liquid-cooling cabinet 200 is a cabinet in a data center, and the liquid-cooling cabinet 200 includes a housing 250, a power supply bus bar 230, a power module 270, a network switch 240, and a server 260, where the power supply bus bar 230, the power module 270, the network switch 240, and the server 260 are respectively disposed in the housing 250. In addition, an insulating cooling liquid 220 is further disposed in the housing 250, and the insulating cooling liquid 220 may submerge the power supply busbar 230, the power module 270, the network switch 240 and the server 260, wherein the insulating cooling liquid 220 may be various insulating cooling liquids 220 used for the liquid-cooled cabinet 200 in the prior art, for example, a fluorinated liquid may be used. The second transfer pipe 400 is located in the housing 250, and the second heat exchange pipe 210 may be submerged in the insulating cooling liquid 220, or the second heat exchange pipe 210 may also be located above the liquid level of the insulating cooling liquid 220.
It is understood that the refrigerant may perform heat exchange between the first heat-exchange line 110 and the second heat-exchange line 210 during the circulation flow of the refrigerant between the first heat-exchange line 110 and the second heat-exchange line 210.
The refrigerant may be a refrigerant or a refrigerant commonly used in the prior art, and specifically, the refrigerant may be a phase-changeable refrigerant. The phase-changeable refrigerant can increase power by reversible phase change, for example, the refrigerant can perform reversible phase change between liquid state and gaseous state, and when the gaseous refrigerant is contacted with the cold source, the gaseous refrigerant can perform heat exchange with the cold source to release self heat, so that the gaseous refrigerant is changed into the liquid refrigerant; accordingly, when the liquid refrigerant is brought into contact with the heat source, heat exchange with the heat source is performed, and heat of the heat source is absorbed, so that the liquid refrigerant is changed into a gaseous refrigerant.
The first heat exchange line 110 and the second heat exchange line 210 may be connected by a line to form an annular loop, and a driving pump for driving the refrigerant to circulate between the first heat exchange line 110 and the second heat exchange line 210 may be disposed in the loop. In this way, the drive pump may be activated to drive the refrigerant flow when it is desired to control the refrigerant circulating between the first heat-exchange line 110 and the second heat-exchange line 210.
Step S102, introducing cooling air with a temperature lower than a preset temperature into the condensing device 100, and allowing the cooling air to flow through an outer wall of the first heat exchange pipeline 110, so as to cool the refrigerant in the first heat exchange pipeline 110.
When the cooling air flows through the outer wall of the first heat exchange pipeline 110, the cooling air may exchange heat with the refrigerant in the first heat exchange pipeline 110 through the pipe wall of the first heat exchange pipeline 110, so as to cool the refrigerant.
In one embodiment of the present disclosure, the cooling wind may change the phase of the gaseous refrigerant in the first heat exchange line 110 into a liquid refrigerant. Then, the refrigeration system may control the liquid refrigerant to flow into the second heat exchange pipeline 210, and the liquid refrigerant flowing into the second heat exchange pipeline 210 may perform heat exchange with the internal environment of the liquid cooling cabinet 200 through a pipe wall of the second heat exchange pipeline 210, so as to realize refrigeration of the internal environment of the liquid cooling cabinet 200. Then, the refrigeration system controls the gaseous refrigerant to flow back to the first heat exchange pipeline 110, and the process of refrigerating the internal environment of the liquid cooling cabinet 200 can be realized by the circulation of the above steps.
Specifically, the air inlet of the condensing device 100 may be blown by an air blowing device to allow external cooling air to enter the condensing device 100. Alternatively, an air inducing device may be provided at an air outlet of the condensation device 100, so that the external cooling air may enter the condensation device 100.
In addition, the temperature of the cooling air entering the condensing device 100 can be ensured to be lower than the preset temperature by placing the condensing device 100 in a relatively low temperature environment. Alternatively, a cooling device may be provided at the air inlet of the condensation device 100 to reduce the temperature of the cooling air entering the condensation device 100.
The preset temperature may be selected according to actual needs, for example, in an embodiment of the present disclosure, the preset temperature may be 23 ℃. In the embodiment of the present disclosure, the cooling air with a temperature lower than the preset temperature is introduced into the condensing device 100, so that the problem that the condensing temperature of the condensing device 100 is higher due to the introduction of the cooling air with a relatively higher temperature into the condensing device 100, and further the peak power consumption of the condensing device 100 is affected can be avoided.
In this embodiment, the cooling air with a temperature lower than the preset value is introduced into the condensing device 100, so that the cooling air cools the refrigerant in the first heat exchange pipeline 110, and the refrigerant is driven to circularly flow between the first heat exchange pipeline 110 and the second heat exchange pipeline 210, thereby realizing a process of refrigerating the internal environment of the liquid-cooling cabinet 200. The process does not need to consume water resources, so the method can be suitable for water-deficient areas.
Optionally, the condensing device 100 further includes a first temperature sensor, and the introducing cooling air with a temperature lower than a preset temperature into the condensing device 100 includes:
detecting the temperature value of the cooling air introduced into the condensing device 100 based on the first temperature sensor;
under the condition that the temperature value is higher than or equal to the preset temperature, cooling the cooling air based on a preset means so that the temperature of the cooling air is lower than the preset temperature, and introducing the cooled cooling air into the condensing device 100;
and introducing the cooling air into the condensing device 100 under the condition that the temperature value is lower than the preset temperature.
Specifically, air outside the condensation device 100 may be introduced into the condensation device 100 to form the cooling wind. When the temperature of the air outside the condensing device 100 is high, that is, the temperature of the air entering the condensing device 100 is high, because the temperature of the cooling air is high, if the cooling air is directly subjected to heat exchange with the refrigerant in the first heat exchange pipeline 110, the condensing temperature of the condensing device 100 is high, and thus the peak power consumption of the condensing device 100 is affected.
Therefore, the temperature value of the cooling air introduced into the condensing device 100 may be detected by the first temperature sensor, and when the temperature value is higher than or equal to the preset temperature, the cooling air is cooled based on a preset means so that the temperature of the cooling air is lower than the preset temperature, and the cooled cooling air is introduced into the condensing device 100; accordingly, when the temperature value is lower than the preset temperature, the cooling air is directly introduced into the condensing device 100.
In this embodiment, the temperature value of the cooling air introduced into the condensing device 100 is detected based on the first temperature sensor, and when the temperature value of the cooling air introduced into the condensing device 100 is higher than or equal to the preset temperature, the cooling air is cooled, so that the condensing temperature of the condensing device 100 is reduced, and the cooling effect of the condensing device 100 is improved. Meanwhile, under the condition that the temperature value of the cooling air introduced into the condensing device 100 is lower than the preset temperature, the cooling air is directly introduced into the condensing device 100, so that the problem that the cooling air is further cooled to cause power consumption waste of a refrigerating system is avoided.
Optionally, the condensing device 100 includes a housing 120 and a sprayer 140, the housing 120 includes an air inlet, the sprayer 140 is disposed in the housing 120, and a water outlet of the sprayer 140 is disposed toward the air inlet, the cooling air is cooled based on a preset means, including:
the shower 140 is controlled to spray and humidify the cooling air entering the housing 120 from the air inlet to cool the cooling air.
It is understood that in the case that the temperature value is lower than the preset temperature, the sprinkler 140 may be controlled to be turned off to avoid waste of power consumption of the refrigeration system.
In this embodiment, the shower 140 is disposed at the air inlet of the housing 120, so that the cooling air introduced into the housing 120 is cooled by the shower 140, thereby ensuring that the temperature of the cooling air introduced into the housing 120 is lower than a preset temperature.
Optionally, the casing 120 further includes an exhaust port, the condensing device 100 further includes a first fan 130, the first fan 130 is disposed at the exhaust port, an air inlet end of the first fan 130 is located inside the casing 120, and the cooling air with a temperature lower than a preset temperature is introduced into the condensing device 100, including:
the first fan 130 is controlled to be activated so that the cooling air outside the housing 120 enters the housing 120 from the air inlet.
In this embodiment, by providing the first fan 130 at the air outlet of the housing 120, in case that the first fan 130 is activated, the external air can be introduced into the housing 120 from the air inlet, and at the same time, the air in the housing 120 can be discharged out of the housing from the air outlet. Thereby realizing a process of introducing cooling air into the condensing device 100.
Referring to fig. 2, a refrigeration system provided for the present disclosure includes: condensing unit 100 and liquid-cooled cabinet 200;
the condensing device 100 comprises a shell 120, a first heat exchange pipeline 110, a first fan 130 and a sprayer 140, wherein the shell 120 comprises an air inlet and an air outlet, the first heat exchange pipeline 110 and the sprayer 140 are respectively arranged in the shell 120, a water spray opening of the sprayer 140 is arranged towards the air inlet, the first fan 130 is arranged at the air outlet, and an air inlet end of the first fan 130 is positioned inside the shell 120;
a second heat exchange pipeline 210 and insulating cooling liquid 220 are arranged in the liquid cooling cabinet 200, the first heat exchange pipeline 110 is communicated with the second heat exchange pipeline 210, and a refrigerant is filled in the first heat exchange pipeline 110.
It can be understood that the refrigeration system provided in the embodiment of the present disclosure may be used to implement each process of the refrigeration method in the above embodiments, and therefore, the refrigeration system provided in the present disclosure may implement all beneficial effects in the above method processes, and in order to avoid repetition, details are not described here again.
The first fan 130 may serve as an induced air fan to introduce air outside the casing 120 into the casing 120, so as to form cooling air, and the cooling air entering the casing 120 may exchange heat with the refrigerant in the first heat exchange pipe 110. In addition, the shower 140 may be used to cool the cooling air entering the housing 120 from the air inlet to ensure that the temperature of the cooling air introduced into the housing 120 is lower than a preset temperature.
The first heat exchange piping 110 may be piping formed of pipes having various shapes. For example, referring to fig. 6-7, the first heat-exchange line 110 may include a coil, or a plurality of branch lines, so that the residence time of the refrigerant in the condensing unit 100 may be increased, or the contact area between the first heat-exchange line 110 and the cooling space may be increased, thereby increasing the cooling effect of the refrigerant in the condensing unit 100. Correspondingly, the second heat exchange pipeline 210 may also include a coil, a serpentine pipe, or a plurality of branch pipelines, so that the time length of the refrigerant staying in the second heat exchange pipeline 210 may be prolonged, or the contact area between the second heat exchange pipeline 210 and the internal environment of the liquid cooling cabinet 200 may be increased, thereby improving the cooling effect on the internal environment of the liquid cooling cabinet 200.
Referring to fig. 4, the shower 140 may have a tubular shape, and the shower 140 includes an inlet and a plurality of water outlets, the inlet of the shower 140 may be connected to a water supply line, and the plurality of water outlets may be respectively disposed toward the air inlet, and the water supply line may supply cooling water to the shower 140. Thus, when the external air enters the housing 120 from the air inlet, the cooling water sprayed by the sprayer 140 can spray and humidify the incoming air, so that the incoming air is cooled to the wet bulb temperature and then exchanges heat with the gaseous refrigerant in the first heat exchange pipeline 110, thereby improving the refrigeration effect of the gaseous refrigerant.
In an embodiment of the present disclosure, the condensing device 100 may be placed in a relatively low temperature scene, so as to implement heat exchange between the relatively low temperature scene and the internal environment of the liquid cooling cabinet 200 through the refrigeration system provided by the present disclosure, thereby implementing refrigeration of the internal environment of the liquid cooling cabinet 200. For example, the condensing unit 100 may be placed outdoors, and the cooling principle thereof is as follows:
the first fan 130 may drive the external air to enter the housing 120 from the air inlet and discharge the air in the housing 120 to the outside of the housing 120, so that the external cold air continuously flows through the inside of the housing 120 to form the cooling air, thereby forming the cold source in the housing 120. In the working process of various devices inside the liquid cooling cabinet 200, a large amount of heat is generated, so that the temperature inside the liquid cooling cabinet 200 is high, and a heat source can be formed inside the liquid cooling cabinet 200. Thus, when the gaseous refrigerant flows into the first heat-exchange line 110, heat exchange with the cooling wind in the casing 120 may be performed through the first heat-exchange line 110, so that at least a portion of the gaseous refrigerant is phase-changed into a liquid refrigerant; the liquid refrigerant may then be transferred to the second heat-exchange line 210, and the liquid refrigerant flowing into the second heat-exchange line 210 may exchange heat with the internal environment of the liquid-cooled cabinet 200 via the second heat-exchange line 210, so that at least a portion of the liquid refrigerant may change phase to a gaseous refrigerant. Then, the gaseous refrigerant in the second heat exchange line 210 is returned to the first heat exchange line 110; the heat exchange between the inside of the liquid cooling cabinet 200 and the outside of the room can be realized by the circulation reciprocating, so that the technical effect of refrigerating the inside of the liquid cooling cabinet 200 is realized.
In this embodiment, the first fan 130 and the sprayer 140 are provided to introduce the air outside the housing 120 into the housing 120 to form the cooling air, and at the same time, the cooling air entering the housing 120 may be sprayed and humidified to make the temperature of the cooling air entering the housing 120 lower than a preset temperature. In this way, the cooling air entering the housing 120 may cool the refrigerant in the first heat exchange line 110, and the refrigerant is controlled to circulate between the first heat exchange line 110 and the second heat exchange line 210, so as to implement a process of refrigerating the internal environment of the liquid cooling cabinet 200. In the process, the refrigerant is cooled by adopting a cooling air mode, so that the waste of water resources can be reduced, and the method is suitable for water-deficient areas.
Optionally, the condensation device 100 further includes a first temperature sensor for detecting a temperature of the gas entering the interior of the housing 120 from the gas inlet, the first temperature sensor is disposed in the interior of the housing 120, and the first temperature sensor is electrically connected to the sprayer 140, and the sprayer 140 is configured to be turned on when the temperature of the gas is higher than or equal to a preset temperature.
Specifically, when the temperature of the air outside the casing 120 is high, that is, the temperature of the cooling air entering the casing 120 is high, if the cooling air with the high temperature is directly subjected to heat exchange with the first heat exchange pipeline 110, the condensing temperature of the condensing device 100 is high, so that the peak power consumption of the condensing device 100 is affected, and therefore, the sprayer 140 may be controlled to be turned on to humidify the air entering the casing 120, so that the temperature of the cooling air flowing into the casing 120 is reduced to the wet bulb temperature and then is subjected to heat exchange with the gaseous refrigerant in the first heat exchange pipeline 110. When the temperature of the air outside the casing 120 is low, that is, the temperature of the cooling air entering the inside of the casing 120 is low, the shower 140 may be turned off, so that the cooling air entering the inside of the casing 120 directly exchanges heat with the gaseous refrigerant in the first heat exchange pipe 110. In this way, since the shower 140 is turned on to spray the cooling water only when the outside air temperature is high, the power consumption of the condensing apparatus 100 can be further reduced, and at the same time, the waste of water resources can be further avoided.
In an embodiment of the present disclosure, the refrigeration system may further include a controller, where the controller may employ a chip in the prior art, such as a single chip. And an electric valve may be provided in the water inlet of the shower 140, and the opening and closing of the shower 140 may be controlled by the electric valve. The first temperature sensor and the electrically operated valve may be electrically connected to the controller, respectively. The first temperature sensor can monitor the temperature of the cooling air entering the shell 120 in real time, and transmit a monitoring result to the controller, the controller can judge whether the temperature of the cooling air entering the shell 120 is higher than a preset temperature, and control the electric valve to open the sprayer 140 under the condition that the temperature of the air inside the shell 120 is higher than the preset temperature, and control the electric valve to close the sprayer 140 under the condition that the temperature of the air inside the shell 120 is lower than or equal to the preset temperature. For example, the electrically operated valve is controlled to open the shower 140 when the temperature of the cooling air entering the housing 120 is greater than 23 ℃, and the electrically operated valve is controlled to close the shower 140 when the temperature of the air in the housing 120 is less than or equal to 23 ℃.
In this embodiment, by configuring the sprayer 140 to be turned on when the temperature inside the housing 120 is higher than the preset temperature, the condensing temperature of the condensing device 100 can be reduced and the cooling effect of the condensing device 100 can be improved when the outdoor temperature is high, and meanwhile, the power consumption of the condensing device 100 can be reduced and the waste of water resources can be avoided when the outdoor temperature is low.
Optionally, the condensation device 100 further includes a wet film 150, the wet film 150 is connected to the housing 120, and the wet film 150 shields the air inlet.
Wherein the external air can enter the inside of the case 120 through the wet film 150 from the air inlet, the contact area between the air flowing through the air inlet and the moisture on the surface thereof can be increased due to the unique structure of the wet film 150. Accordingly, the water spray nozzles of the shower 140 may be directed toward the wet film 150 to humidify the wet film 150, and then the air flowing through the wet film 150 may be sufficiently humidified by the wet film 150, so that the shower humidifying effect of the air entering the inside of the case 120 from the air inlet may be improved.
In this embodiment, the provision of the wet film 150 at the air inlet can improve the shower humidification effect on the air entering the casing 120, and thus further improve the cooling effect of the condenser apparatus 100.
Optionally, the air inlet includes a first sub air inlet and a second sub air inlet, and the first sub air inlet and the second sub air inlet are respectively opened on different sides of the housing 120.
Specifically, referring to fig. 4, in the embodiment of the present disclosure, the first sub-inlet and the second sub-inlet may be disposed on two opposite sides of the housing 120, respectively, and the exhaust port is disposed on the top of the housing 120. Thus, the external air can enter the inside of the casing 120 from both sides of the casing 120, the cooling air entering the inside of the casing 120 can exchange heat with the gaseous refrigerant in the first heat exchange pipe 110, and the heated hot air flows upward and is discharged to the outside by the suction action of the first fan 130.
In this embodiment, the air inlets are formed on different sides of the casing 120, so that the flow rate of the air entering the casing 120 can be increased, and the cooling effect of the condensing device 100 can be further improved.
Optionally, the first heat exchange pipeline 110 includes a first coil pipe 111 and a second coil pipe 112, the first coil pipe 111 is located on a first preset plane, the second coil pipe 112 is located on a second preset plane, one side of the first preset plane is opposite to the first sub air inlet, the other side of the first preset plane is opposite to the air outlet, one side of the second preset plane is opposite to the second sub air inlet, and the other side of the second preset plane is opposite to the air outlet.
Wherein the first coil 111 may be in communication with the second coil 112, specifically, the first coil 111 and the second coil 112 may be connected in series, for example, an outlet of the first coil 111 may be in communication with an inlet of the second coil 112, an inlet of the first coil 111 may form an input end of the first heat exchange pipe 110, and an outlet of the second coil 112 may form an output end of the first heat exchange pipe 110, so that a residence time of the refrigerant in the first heat exchange pipe 110 may be further prolonged. Alternatively, the first coil 111 and the second coil 112 may be connected in parallel, that is, the inlet of the first coil 111 and the inlet of the second coil 112 together form the input end of the first heat exchange pipe 110; the outlet of the first coil 111 and the outlet of the second coil 112 together form the output end of the first heat exchange pipe 110, so that the contact area between the first heat exchange pipe 110 and the cooling wind in the housing 120 can be further increased.
In addition, because the both sides of first predetermined plane are relative with first sub-air inlet and gas vent respectively, like this, the cooling air that gets into the inside of casing 120 from first sub-air inlet need flow through first predetermined plane earlier just can discharge from the gas vent, consequently, through with first coil pipe 111 sets up in first predetermined plane, like this, can improve the contact effect of the cooling air that gets into the inside of casing 120 from first sub-air inlet and first coil pipe 111 to improve the heat transfer effect of the gaseous state refrigerant in the first coil pipe 111 and the cooling air in the casing 120. Accordingly, by disposing the second coil 112 on the second predetermined plane, the contact effect between the cooling wind entering the interior of the housing 120 from the second sub-inlet and the second coil 112 can be improved.
It is understood that a gap is formed between any two adjacent pipes of the first coil pipe 111, and a gap is formed between any two adjacent pipes of the second coil pipe 112, so that cooling wind entering from the air inlet can pass through the first coil pipe 111 and the second coil pipe 112 through the gap between the pipes.
Referring to fig. 4, in an embodiment of the present disclosure, the first sub-inlet and the second sub-inlet may be respectively disposed at two opposite sides of the housing 120, the exhaust port is disposed at the top of the housing 120, and a V-shaped structure may be formed between the first coil 111 and the second coil 112, such that one side of the first coil 111 is opposite to the first sub-inlet, the other side of the first coil 111 is opposite to the exhaust port, one side of the second coil 112 is opposite to the second sub-inlet, and the other side of the second coil 112 is opposite to the exhaust port.
In this embodiment, by positioning the first coil 111 on a first predetermined plane and positioning the second coil 112 on a second predetermined plane, the contact effect between the first coil 111 and the second coil 112 and the cooling air entering the housing 120 from the air inlet can be improved, and the cooling effect of the condensing device 100 can be further improved.
Optionally, the refrigeration system further comprises a first transfer line 300 and a second transfer line 400, and the output end of the first heat exchange line 110 is connected with the input end of the second heat exchange line 210 through the first transfer line 300; the output end of the second heat exchange line 210 is connected with the input end of the first heat exchange line 110 through the second transfer line 400.
A liquid pump may be disposed in the first transfer line 300 to transfer the liquid refrigerant in the first heat exchange line 110 to the second heat exchange line 210; accordingly, an air pump may be disposed in the second transfer line 400 to transfer the gaseous refrigerant in the second heat exchange line 210 to the first heat exchange line 110. Wherein, the liquid pump and the air pump can respectively adopt a fluorine pump.
In this embodiment, the first and second heat exchange lines 110 and 210 are communicated by using the first and second transfer lines 300 and 400, so that the liquid refrigerant in the first heat exchange line 110 may be transferred to the second heat exchange line 210 through the first transfer line 300, and simultaneously, the gaseous refrigerant in the second heat exchange line 210 may be transferred to the first heat exchange line 110 through the second transfer line 400. Thereby accomplishing a process of circulating the refrigerant between the first heat-exchange line 110 and the second heat-exchange line 210.
Optionally, the refrigeration system includes at least two of the liquid-cooled cabinets 200,
the first transmission pipeline 300 includes at least two first branches 330, the at least two first branches 330 are disposed in one-to-one correspondence with the at least two liquid-cooling cabinets 200, and each first branch 330 is connected to an input end of the second heat exchange pipeline 210 in the corresponding liquid-cooling cabinet 200;
the second transmission pipeline 400 includes at least two second branches 420, the at least two second branches 420 are disposed in one-to-one correspondence with the at least two liquid-cooling cabinets 200, and each of the second branches 420 is connected to an output end of the second heat exchange pipeline 210 in the corresponding liquid-cooling cabinet 200.
Wherein the first transmission line 300 comprises at least two first branches 330, and the output ends of the at least two first branches 330 form the output end of the first transmission line 300. Correspondingly, the second conveying line 400 comprises at least two second branches 420, the inputs of which second branches 420 form the inputs of the second conveying line 400. As such, by making the first transmission pipeline 300 and the second transmission pipeline 400 respectively include at least two branches, the condensing device 100 can be connected to at least two liquid-cooled cabinets 200 through the first transmission pipeline 300 and the second transmission pipeline 400 respectively. Thereby realizing the technical effect of synchronously cooling at least two liquid-cooling cabinets 200 based on one condensing device 100.
Specifically, referring to fig. 8, the first transmission pipeline 300 further includes a first main pipeline 370, the at least two first branches 330 are respectively connected to the first main pipeline 370, and an input end of the first main pipeline 370 forms an input end of the first transmission pipeline 300. Correspondingly, the second transmission pipeline 400 further includes a second main pipeline 430, the at least two second branches 420 are respectively connected to the second main pipeline 430, and an output end of the second main pipeline 430 forms an output end of the second transmission pipeline 400. A plurality of first manual control valves 380 may be disposed in first main pipeline 370 at intervals along a length direction of first main pipeline 370, first manual control valves 380 may control first main pipeline 370 to be turned on or off, a plurality of second manual control valves 440 may be disposed in second main pipeline 430 at intervals along a length direction of second main pipeline 430, and second manual control valves 440 may control first main pipeline 370 to be turned on or off. Thus, when a certain liquid cooling cabinet 200 needs to be overhauled, the first manual control valve 380 between the liquid cooling cabinet 200 and the input end of the first heat exchange pipeline 110 and the second manual control valve 440 between the liquid cooling cabinet 200 and the output end of the first heat exchange pipeline 110 can be closed, so that the liquid cooling cabinet 200 can be overhauled conveniently.
In an embodiment of the present disclosure, a second temperature sensor 360 and a flow meter 350 are further disposed in the first branch 330, so that the temperature of the liquid refrigerant in the first branch 330 can be detected by the second temperature sensor 360, and meanwhile, the flow rate of the liquid refrigerant in the first branch 330 can be detected by the flow meter 350.
In this embodiment, the first heat exchange pipeline 110 and the at least two liquid cooling cabinets 200 are connected via a pipeline, so that the first heat exchange pipeline 110 can exchange heat with the at least two liquid cooling cabinets 200 at the same time. Thereby realizing the technical effect of synchronously cooling at least two liquid-cooling cabinets 200 based on one condensing device 100.
Optionally, a first pump body 310 is disposed in the first branch 330, an input end of the first pump body 310 is connected to an output end of the first heat exchange pipeline 110, and an output end of the first pump body 310 is connected to an input end of the second heat exchange pipeline 210;
a second pump body 410 is disposed in the second branch 420, an input end of the second pump body 410 is connected to an output end of the second heat exchange pipeline 210, and an output end of the second pump body 410 is connected to an input end of the first heat exchange pipeline 110.
Specifically, referring to fig. 8, the first pump 310 may be a liquid pump, and the first pump 310 is disposed in the first branch 330, so that the liquid refrigerant in the first heat exchange pipeline 110 can be pumped into the second heat exchange pipeline 210 of the corresponding liquid-cooling cabinet 200 through the first pump 310. Accordingly, the second pump 410 may be an air pump, and by disposing the second pump 410 in the second branch 420, the gaseous refrigerant in the second heat exchange line 210 of the corresponding liquid-cooling cabinet 200 may be pumped into the first heat exchange line 110 through the second pump 410.
In this embodiment, by providing the first pump body 310 in the first branch 330 and the second pump body 410 in the second branch 420, the refrigerant can be circulated between the first heat exchange line 110 and each of the second heat exchange lines 210.
Referring to fig. 3, in another embodiment of the present disclosure, the refrigeration system may also include only one liquid-cooled cabinet 200, in which case the first pump 310 is disposed in the first transmission pipeline 300 and the second pump 410 is disposed in the second transmission pipeline 400.
Optionally, the first transmission pipeline 300 further includes a liquid storage tank 320, the liquid storage tank 320 is provided with a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are respectively close to the bottom of the liquid storage tank 320, the liquid inlet is connected to the output end of the first heat exchange pipeline 110 through a pipeline, and the liquid outlet is connected to the input end of the second heat exchange pipeline 210 through a pipeline.
Specifically, the liquid inlet and the liquid outlet of the liquid storage tank 320 are respectively arranged at positions close to the bottom of the liquid storage tank 320. Thus, when the liquid refrigerant normally flows through the receiver 320, a flow passage may be formed in a bottom space of the receiver 320, and a buffer cavity may be formed above the receiver 320. When the liquid flow in the first transmission pipeline 300 changes suddenly, the buffer cavity can buffer the liquid with the sudden change, so that the impact on other devices in the pipeline can be relieved when the liquid flow in the first transmission pipeline 300 changes suddenly.
In this embodiment, the liquid storage tank 320 is disposed in the first transmission pipeline 300, so that when the liquid flow in the first transmission pipeline 300 changes suddenly, the liquid in the sudden change can be buffered by the liquid storage tank 320, and thus, the devices in the pipeline can be effectively protected.
Optionally, the first transmission pipeline 300 further includes a flow regulating valve 340, and the flow regulating valve 340 is disposed in the first transmission pipeline 300 to regulate the liquid flow in the first transmission pipeline 300.
The flow regulating valve 340 may be various liquid flow regulating valves 340 in the prior art, for example, an electronic expansion valve may be used.
In this embodiment, the flow regulating valve 340 is disposed in the first transmission pipeline 300, so that the flow of the liquid refrigerant in the first transmission pipeline 300 can be regulated based on the flow regulating valve 340 according to actual scene requirements, and the refrigeration system of the present disclosure can adapt to different application scenes.
Optionally, the second transfer line 400 includes a filter 450, the filter 450 being disposed within the second transfer line 400.
In this embodiment, the filter 450 is disposed in the second transmission pipeline 400, so that impurities in the second transmission pipeline 400 can be filtered through the filter 450, for example, moisture in the second transmission pipeline 400 can be filtered, and thus the purity of the refrigerant can be improved, and the refrigeration effect of the refrigeration system can be further improved.
Optionally, the outer surface of at least one of the first heat exchange line 110 and the second heat exchange line 210 is provided with heat exchange fins.
In this embodiment, by providing the heat dissipation fins on the outer surface of the first heat exchange pipe 110, the heat exchange effect between the first heat exchange pipe 110 and the air inside the housing 120 can be improved; correspondingly, the heat exchange effect between the second heat exchange pipeline 210 and the internal environment of the liquid cooling cabinet 200 can be improved by arranging the heat dissipation fins on the outer surface of the second heat exchange pipeline 210. And further the refrigerating effect of the refrigerating system can be further improved.
The above detailed description should not be construed as limiting the scope of the disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present disclosure should be included in the scope of protection of the present disclosure.
Claims (14)
1. A refrigeration method is applied to a refrigeration system, and the refrigeration system comprises: condensing equipment (100) and liquid cooling rack (200), condensing equipment (100) include first heat transfer pipeline (110), be equipped with second heat transfer pipeline (210) and insulating coolant liquid (220) in liquid cooling rack (200), first heat transfer pipeline (110) with second heat transfer pipeline (210) intercommunication, just first heat transfer pipeline (110) intussuseption is filled with the refrigerant, the method includes:
controlling the refrigerant to circulate between the first heat-exchange line (110) and the second heat-exchange line (210);
and introducing cooling air with the temperature lower than the preset temperature into the condensing device (100), and enabling the cooling air to flow through the outer wall of the first heat exchange pipeline (110) so as to cool the refrigerant in the first heat exchange pipeline (110).
2. The method according to claim 1, wherein the condensing device (100) further comprises a first temperature sensor, and the step of introducing cooling air with the temperature lower than the preset temperature into the condensing device (100) comprises the following steps:
detecting the temperature value of cooling air introduced into the condensing device (100) based on the first temperature sensor;
under the condition that the temperature value is higher than or equal to the preset temperature, cooling the cooling air based on a preset means so that the temperature of the cooling air is lower than the preset temperature, and introducing the cooled cooling air into the condensing device (100);
and introducing the cooling air into the condensing device (100) under the condition that the temperature value is lower than the preset temperature.
3. The method of claim 1, wherein the condensing device (100) comprises a housing (120) and a shower (140), the housing (120) comprises an air inlet, the shower (140) is disposed in the housing (120), and a water outlet of the shower (140) is disposed toward the air inlet, the cooling wind is cooled based on a preset means, comprising:
and controlling the sprayer (140) to spray and humidify the cooling air entering the shell (120) from the air inlet so as to cool the cooling air.
4. The method according to claim 3, wherein the housing (120) further comprises an exhaust port, the condensation device (100) further comprises a first fan (130), the first fan (130) is disposed at the exhaust port, an air inlet end of the first fan (130) is located inside the housing (120), and the introducing of the cooling air with the temperature lower than the preset temperature into the condensation device (100) comprises:
controlling the first fan (130) to be started so as to enable cooling air outside the shell (120) to enter the shell (120) from the air inlet.
5. A refrigeration system comprising: a condensing unit (100) and a liquid cooled cabinet (200);
the condensing device (100) comprises a shell (120), a first heat exchange pipeline (110), a first fan (130) and a sprayer (140), wherein the shell (120) comprises an air inlet and an air outlet, the first heat exchange pipeline (110) and the sprayer (140) are respectively arranged in the shell (120), a water spray opening of the sprayer (140) is arranged towards the air inlet, the first fan (130) is arranged at the air outlet, and an air inlet end of the first fan (130) is positioned in the shell (120);
the liquid cooling cabinet is characterized in that a second heat exchange pipeline (210) and insulating cooling liquid (220) are arranged in the liquid cooling cabinet (200), the first heat exchange pipeline (110) is communicated with the second heat exchange pipeline (210), and a refrigerant is filled in the first heat exchange pipeline (110).
6. The refrigeration system according to claim 5, wherein the condensation device (100) further comprises a first temperature sensor for detecting a temperature of the gas entering the interior of the housing (120) from the gas inlet, the first temperature sensor being arranged inside the housing (120) and being electrically connected to the shower (140), the shower (140) being configured to be turned on if the gas temperature is higher than or equal to a preset temperature.
7. The refrigeration system of claim 5, wherein the condensing device (100) further comprises a wet film (150), the wet film (150) being connected to the housing (120), and the wet film (150) covering the air inlet.
8. The refrigeration system of claim 5, wherein the air inlet includes a first sub-inlet and a second sub-inlet, the first sub-inlet and the second sub-inlet opening on different sides of the housing (120), respectively.
9. Refrigeration system according to claim 8, wherein the first heat exchange circuit (110) comprises a first coil (111) and a second coil (112), the first coil (111) being located in a first predetermined plane and the second coil (112) being located in a second predetermined plane, one side of the first predetermined plane being opposite to the first sub-air inlet, the other side of the first predetermined plane being opposite to the air outlet, one side of the second predetermined plane being opposite to the second sub-air inlet, the other side of the second predetermined plane being opposite to the air outlet.
10. Refrigeration system according to claim 5, wherein it further comprises a first transfer line (300) and a second transfer line (400), the output of the first heat exchange line (110) being connected to the input of the second heat exchange line (210) through the first transfer line (300); the output end of the second heat exchange pipeline (210) is connected with the input end of the first heat exchange pipeline (110) through the second transmission pipeline (400).
11. The refrigeration system of claim 10, wherein the refrigeration system includes at least two of the liquid-cooled cabinets (200),
the first transmission pipeline (300) comprises at least two first branches (330), the at least two first branches (330) are arranged in one-to-one correspondence with the at least two liquid cooling cabinets (200), and each first branch (330) is connected with an input end of a second heat exchange pipeline (210) in the corresponding liquid cooling cabinet (200);
the second transmission pipeline (400) comprises at least two second branches (420), the at least two second branches (420) are arranged in one-to-one correspondence with the at least two liquid cooling cabinets (200), and each second branch (420) is connected with the output end of a second heat exchange pipeline (210) in the corresponding liquid cooling cabinet (200).
12. Refrigeration system according to claim 11, wherein a first pump body (310) is provided in the first branch (330), and an input of the first pump body (310) is connected to an output of the first heat exchange circuit (110), and an output of the first pump body (310) is connected to an input of the second heat exchange circuit (210);
a second pump body (410) is arranged in the second branch (420), the input end of the second pump body (410) is connected with the output end of the second heat exchange pipeline (210), and the output end of the second pump body (410) is connected with the input end of the first heat exchange pipeline (110).
13. The refrigeration system of claim 10, wherein the first transfer line (300) further comprises a liquid storage tank (320), the liquid storage tank (320) is provided with a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are respectively close to the bottom of the liquid storage tank (320), the liquid inlet is connected with the output end of the first heat exchange line (110) through a pipeline, and the liquid outlet is connected with the input end of the second heat exchange line (210) through a pipeline.
14. The refrigeration system of claim 10, wherein the first transfer line (300) further comprises a flow regulating valve (340), the flow regulating valve (340) being disposed within the first transfer line (300) to regulate a flow of liquid within the first transfer line (300);
the second transfer line (400) comprising a filter (450), the filter (450) being disposed within the second transfer line (400);
the outer surface of at least one of the first heat exchange pipeline (110) and the second heat exchange pipeline (210) is provided with heat exchange fins.
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