Cooling system

Abstract

The invention provides a cooling system which is connected with liquid cooling equipment, and the cooling system comprises a water chilling unit which comprises a plate-type evaporator, a compressor and a dry cooler; wherein the plate-type evaporator, the compressor and the dry cooler form a first medium loop, a refrigerant medium circulates in the first medium loop, the plate-type evaporator and a cold water source form a second medium loop, and cooling water provided by the cold water source circulates in the second medium loop; the control device is used for controlling the first medium loop to be communicated and the second medium loop to be disconnected, and the heat load of the liquid cooling equipment exchanges heat with the refrigerant medium in the plate-type evaporator; or the control module is further used for controlling the first medium loop to be disconnected and the second medium loop to be connected, and the heat load of the liquid cooling equipment exchanges heat with the cooling water in the plate-type evaporator.

Description

Technical Field

[0001] The present disclosure relates to cooling technology, and in particular to a cooling system. Background Art

[0002] At present, liquid cooling equipment generates heat load when cooling electronic equipment such as data centers and servers. If the heat load temperature is too high, it will affect the cooling efficiency of the liquid cooling equipment.

[0003] In order to further improve the cooling efficiency of the liquid cooling device, the heat load in the liquid cooling device can be further cooled. Usually, the type of cooling device is determined according to the application scenario of the liquid cooling device to achieve the optimal cooling solution. However, the application scenarios of liquid cooling devices are complex and diverse, and the cooling device cannot be adapted to all application scenarios. In the related art, a variety of cooling devices are used in combination, resulting in a higher equipment cost for the cooling system and a larger occupied space. Summary of the invention

[0004] The present disclosure provides a cooling system, which is connected to a liquid cooling device, and the cooling system comprises: a water chiller, which comprises a plate evaporator, a compressor and a dry cooler; wherein the plate evaporator, the compressor and the dry cooler form a first medium loop, in which a refrigerant medium circulates; the plate evaporator and a cold water source form a second medium loop, in which cooling water provided by the cold water source circulates; a control device, which is used to control the connection of the first medium loop and the disconnection of the second medium loop, in which a heat load of the liquid cooling device performs heat exchange with the refrigerant medium in the plate evaporator; or, further used to control the disconnection of the first medium loop and the connection of the second medium loop, in which a heat load of the liquid cooling device performs heat exchange with cooling water in the plate evaporator.

[0005] In some embodiments, the control device is also used to control the connection of the first medium circuit and the disconnection of the second medium circuit when there are sufficient power resources; or, it is also used to control the disconnection of the first medium circuit and the connection of the second medium circuit when there is sufficient cooling water provided by the cold water source.

[0006] In some embodiments, in the first medium loop, the refrigerant is input into the plate evaporator to exchange heat with the heat load, and the refrigerant after the heat exchange is compressed by the compressor and cooled by the dry cooler in turn, and then input into the plate evaporator again; in the second medium loop, cooling water is input from the cold water source into the plate evaporator to exchange heat with the heat load, and the cooling after the heat exchange is output to the cold water source.

[0007] In some embodiments, the heat load is output from the liquid cooling device to the plate evaporator, and heat exchange is performed in the plate evaporator. After the heat exchange, the heat load returns to the liquid cooling device.

[0008] In some embodiments, the chiller further includes a water tank; the heat load after heat exchange undergoes secondary heat exchange via the water tank and returns to the liquid cooling device.

[0009] In some embodiments, the chiller also includes: a liquid storage tank connected to the plate evaporator, in which a refrigerant is stored; a control device, which is also used to control the liquid storage tank to output the refrigerant to the plate evaporator when the first medium circuit is connected; or, when the first medium circuit is disconnected, control the liquid storage tank to stop outputting the refrigerant to the plate evaporator.

[0010] In some embodiments, the chiller further includes: a power supply module connected to the compressor; and a control device, further used to control the power supply module to supply power to the compressor when the first medium loop is connected.

[0011] In some embodiments, the chiller further includes: a water pump connected to the plate evaporator; and a control device, further used to control the water pump to pump cooling water from the cold water source and output it to the plate evaporator when the second medium loop is connected.

[0012] In some embodiments, the heat load is output from the liquid cooling device to the dry cooler, and heat exchange is performed in the dry cooler, and the heat load after the heat exchange is returned to the liquid cooling device.

[0013] In some embodiments, the cooling system also includes a cooling tower, which includes a spray component; the heat load is output from the liquid cooling device to the cooling tower, and the spray component performs heat exchange in the cooling tower through spraying cooling medium, and the heat load after heat exchange is returned to the liquid cooling device.

[0014] In some embodiments, the control device is also used to perform at least one of the following: controlling the heat load to be input from the liquid cooling device to the plate evaporator for heat exchange; controlling the heat load to be input from the liquid cooling device to the dry cooler for heat exchange; controlling the heat load to be input from the liquid cooling device to the cooling tower for heat exchange.

[0015] The embodiments of the present disclosure have the following beneficial effects:

[0016] In the disclosed embodiment, the plate evaporator in the chiller can form a first medium circuit with the compressor and the dry cooler in the chiller, and the plate evaporator in the chiller can form a second medium circuit with the cold water source, so that the plate evaporator can be in different medium circuits. The first medium circuit and the second medium circuit are controlled by the control device to be in different on-off states, and the heat load output by the liquid cooling device can be heat exchanged with the refrigerant in the first medium circuit, or can be heat exchanged with the cooling water in the second medium circuit. In this process, by switching the refrigerant and the cooling water, the type of cooling source used by the chiller can be changed, so that the chiller can be suitable for different application scenarios. There is no need to add other cooling equipment to the cooling system in the disclosed embodiment, which effectively reduces equipment costs and saves space.

[0017] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0019] Figure 1 Schematic diagram of a first cooling structure of a cooling system provided by an embodiment of the present disclosure

[0020] Figure 2 is a schematic diagram of a second cooling structure of a cooling system provided by an embodiment of the present disclosure;

[0021] Figure 3 is a schematic diagram of a third cooling structure of a cooling system provided by an embodiment of the present disclosure;

[0022] Figure 4 is a schematic diagram of a fourth cooling structure of a cooling system provided by an embodiment of the present disclosure;

[0023] Figure 5 is a schematic diagram of a fifth cooling structure of a cooling system provided by an embodiment of the present disclosure;

[0024] Figure 6 It is a schematic diagram of the sixth cooling structure of the cooling system provided in an embodiment of the present disclosure.

[0025] Description of reference numerals:

[0026] 100. Cooling system; 40. Chiller; 41. Plate evaporator; 42. Compressor; 43. Dry cooler; 44. Control device; 54. Water tank; 55. Liquid storage tank; 56. First valve; 57. Second valve; 58. Third valve; 59. Fourth valve; 80. Cooling tower. DETAILED DESCRIPTION

[0027] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0028] Liquid cooling equipment generates heat load when cooling electronic equipment such as data centers and servers. If the heat load temperature is too high, it will affect the cooling efficiency of the liquid cooling equipment.

[0029] In order to further improve the cooling efficiency of the liquid cooling device, the heat load in the liquid cooling device can be further cooled. Usually, the type of cooling device is determined according to the application scenario of the liquid cooling device to achieve the optimal cooling solution. However, the application scenarios of liquid cooling devices are complex and diverse, and the cooling device cannot be adapted to all application scenarios. In the related art, a variety of cooling devices are used in combination, resulting in a higher equipment cost for the cooling system and a larger occupied space.

[0030] In order to solve the above technical problems, an embodiment of the present disclosure provides a cooling system.

[0031] Figure 1 Schematic diagram of a first cooling structure of a cooling system provided by an embodiment of the present disclosure. Figure 1 As shown, the cooling system 100 can be connected to a liquid cooling device. The liquid cooling device can be a device for cooling electronic devices such as data centers and servers. The cooling liquid in the liquid cooling device will heat up after heat exchange with the electronic device, thereby generating a heat load. The liquid cooling device can input the heated cooling liquid into the cooling system, and the cooling system cools the heated cooling liquid, thereby further cooling the heat load. The cooled cooling liquid can be input into the liquid cooling device again to exchange heat with the electronic device again.

[0032] In some embodiments, the cooling system 100 may include: a chiller 40 and a control device 44. The chiller 40 may include a plate evaporator 41, a compressor 42 and a dry cooler 43. The plate evaporator 41 is connected to the compressor 42 and the dry cooler 43 to form a first medium loop; the plate evaporator 41 is connected to a cold water source to form a second medium loop.

[0033] In one embodiment, the heated coolant may be understood as the heat load output by the liquid cooling device, or may also be understood as the heat load of the liquid cooling device.

[0034] In one embodiment, the coolant in the liquid cooling device may be ultrapure water, deionized water, or the like.

[0035] In one embodiment, the liquid cooling device may include a water pump station, and a water pump in the water pump station is used to pump the heat load of the liquid cooling device out of the liquid cooling device.

[0036] In some embodiments, the cooling system 100 may include: a chiller 40 and a control device 44. The chiller 40 is used to perform heat exchange with the heat load of the liquid cooling device. The control device 44 is used to control the chiller 40 to operate in one or more operating modes.

[0037] In some embodiments, the chiller 40 may include a plate evaporator 41, a compressor 42, and a dry cooler 43. The plate evaporator 41, the compressor 42, and the dry cooler 43 form a first medium loop, in which a refrigerant medium circulates.

[0038] It is understandable that the first medium loop may be a refrigeration loop formed by connecting the plate evaporator 41, the compressor 42 and the dry cooler 43. The refrigerant flows into the plate evaporator 41, flows through the compressor 42 and the dry cooler 43 in sequence, and then returns to the plate evaporator 41, thus forming the first medium loop.

[0039] In some embodiments, the connection between the plate evaporator 41, the compressor 42 and the dry cooler 43 can be achieved through a pipeline. In some embodiments, the material, shape, position, size and other parameters of the pipeline can be set according to actual needs, and the embodiments of the present disclosure are not limited to this.

[0040] In one embodiment, the working principle of the plate evaporator 41 is to utilize the narrow channels between multiple plates to allow the heat load to flow on one side of the plate and the cold medium to flow on the other side of the plate. In this way, the heat load and the cold medium exchange heat through the plates, so that the heat load transfers heat to the cold medium and the cold medium absorbs heat.

[0041] In one embodiment, the working principle of the compressor 42 is to compress the volume of the refrigerant by reciprocating the piston in the cylinder. In one embodiment, the compressor 42 compresses the low-temperature refrigerant to increase the temperature of the refrigerant.

[0042] In one embodiment, the working principle of the dry cooler 43 is that the refrigerant flows in the pipeline and exchanges heat with the air outside the pipeline to reduce the temperature of the refrigerant. In one embodiment, a fan may be provided outside the pipeline of the dry cooler 43, and the fan may reduce the temperature of the air outside the pipeline, thereby improving the cooling efficiency. In one example, the fan may be a fan, a cooling fan, etc.

[0043] In one embodiment, the plate evaporator 41 includes a first channel and a second channel. The first channel is a channel for the cold medium in the plate evaporator 41, and in this case, the first channel can be part of the first medium loop. The second channel is a channel for the heat load of the liquid cooling device in the plate evaporator 41.

[0044] In one embodiment, the heat load can be output from the liquid cooling device to the second channel of the plate evaporator 41, and heat exchange is performed with the cold medium in the first channel in the second channel. The heat load after heat exchange is output from the second channel and returned to the liquid cooling device. After the cold medium absorbs heat in the first channel, it continues to circulate in the first medium loop.

[0045] In one embodiment, the refrigerant may be a freon (such as chlorodifluoromethane (R22), difluoromethane (R32), tetrafluoroethane (R134a), etc.). Freon can absorb heat or release heat when the state changes. In one embodiment, the refrigerant may circulate in the first medium loop in the form of a gas. In some embodiments, the refrigerant may circulate in the first medium loop in the form of a liquid. In this case, the compressor 42 may compress the gaseous refrigerant into a liquid state. The liquid refrigerant may be converted from a liquid state to a gaseous state after absorbing the heat of the heat load in the plate evaporator 41.

[0046] In one embodiment, when the refrigerant circulates in the first medium loop in a gaseous form, the plate evaporator 41 can use the refrigerant in a gaseous form to perform heat exchange with the heat load, thereby forming heat exchange between gas and liquid.

[0047] In one embodiment, the chiller 40 may be an air-cooled chiller, wherein components such as a plate evaporator 41, a compressor 42, a dry cooler 43 and a refrigerant medium of the air-cooled chiller work in coordination to achieve an effective refrigeration effect.

[0048] In some embodiments, in the first medium loop, the refrigerant is input into the plate evaporator 41 to exchange heat with the heat load. After the heat exchange, the refrigerant is compressed by the compressor 42 and cooled by the dry cooler 43, and then input into the plate evaporator 41 again.

[0049] In one embodiment, after the refrigerant performs heat exchange with the heat load in the plate evaporator 41, it can absorb the heat of the heat load and the temperature rises. The refrigerant after the temperature rises can enter the compressor 42, and the compressor 42 can compress it to reduce the volume of the refrigerant, increase the pressure of the refrigerant, and increase the temperature of the refrigerant, thereby forming a high-temperature and high-pressure refrigerant. The high-temperature and high-pressure refrigerant can first be cooled in the dry cooler 43, and the refrigerant after cooling is depressurized by the pressure relief valve in the dry cooler 473 to form a low-temperature and low-pressure refrigerant. The low-temperature and low-pressure refrigerant is input into the plate evaporator 41 again to perform heat exchange with the heat load.

[0050] In some embodiments, the chiller 40 further includes: a power supply module connected to the compressor 42. It is understandable that the power supply module can supply power to the compressor 42.

[0051] In some embodiments, the plate evaporator 41 and the cold water source form a second medium loop, and cooling water provided by the cold water source circulates in the second medium loop.

[0052] In one embodiment, the second medium circuit can be a cooling water refrigeration circuit. In one embodiment, the cooling water flows into the plate evaporator 41, and then flows into the cold water source from the plate evaporator 41, and the cooling water in the cold water source flows into the plate evaporator 41 again, thus forming the second medium circuit.

[0053] In some embodiments, the connection between the plate evaporator 41 and the cold water source can be achieved through a pipeline. In one embodiment, the material, shape, position, length and other parameters of the pipeline can be set according to actual needs, and the embodiment of the present disclosure is not limited to this.

[0054] In one embodiment, the first channel in the plate evaporator 41 may also be a channel for cooling water in the plate evaporator 41, in which case the first channel may be part of the second medium circuit. The second channel is a channel for the heat load of the liquid cooling device in the plate evaporator 41.

[0055] In one embodiment, the heat load can be output from the liquid cooling device to the second channel of the plate evaporator 41, and heat exchange is performed with the cooling water in the first channel in the second channel. The heat load after heat exchange is output from the second channel and returned to the liquid cooling device. After absorbing heat in the first channel, the cooling water continues to circulate in the second medium loop.

[0056] In one embodiment, the cold water source may be a natural water source, such as a lake, an ocean, or the like.

[0057] In one embodiment, the chiller 40 further includes: a water pump connected to the plate evaporator 41 . The water pump is used to pump cooling water from a cold water source and output it to the plate evaporator 41 .

[0058] In one embodiment, when the cooling water circulates in the second medium loop, the plate evaporator 41 can use the cooling water to perform heat exchange with the heat load, thereby forming liquid-liquid heat exchange.

[0059] In some embodiments, after the heat load enters the plate evaporator 41, the control device 44 can control the on and off of the first medium circuit and the second medium circuit so that the heat load is cooled by different heat exchange methods. In one embodiment, the control device 44 can control the first medium circuit to be connected and the second medium circuit to be disconnected. At this time, the heat load of the liquid cooling device performs gas-liquid heat exchange with the refrigerant circulating in the first medium circuit in the plate evaporator 41. In one embodiment, the control device 44 can also control the first medium circuit to be disconnected and the second medium circuit to be connected. At this time, the heat load of the liquid cooling device performs liquid-liquid heat exchange with the cooling water in the second medium circuit in the plate evaporator 41.

[0060] In the embodiment of the present disclosure, the control device 44 controls the connection of one of the first medium circuit and the second medium circuit and the disconnection of one circuit so that the heat load of the liquid cooling equipment can be heat exchanged with different cooling media (such as refrigerant or cooling water) in the plate evaporator 41. In this way, the type of cooling media used by the plate evaporator 41 can be changed, thereby utilizing the plate evaporator 41 to provide a variety of cooling methods to adapt to different application scenarios.

[0061] In one embodiment, the control device 44 may be a combination of software and / or hardware that implements a predetermined function. In some embodiments, the control device 44 may be a processor in the form of a hardware decoding processor, which is programmed to perform control of the first medium loop and the second medium loop. For example, the processor in the form of a hardware decoding processor may be one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), or other electronic components, which are not specifically limited in the embodiments of the present disclosure.

[0062] In one embodiment, valves may be provided on the first medium circuit and the second medium circuit, and the control device 44 may control the on-off of the first medium circuit and the on-off of the second medium circuit by controlling the opening and closing of the valves.

[0063] In one embodiment, the valves in the first medium circuit and the second medium circuit may be one-way valves. The control device 44 may control the opening and closing of the one-way valve on the first medium circuit and / or the one-way valve on the second medium circuit respectively to control the opening and closing of the first medium circuit and the opening and closing of the second medium circuit.

[0064] In one embodiment, the valves on the first medium circuit and the second medium circuit may be multi-way valves, and different interfaces of the multi-way valve are respectively connected to the first medium circuit and the second medium circuit. The control device 44 can control the opening and closing of different interfaces in the multi-way valve to control the opening and closing of the first medium circuit and the opening and closing of the second medium circuit.

[0065] In some embodiments, the valves on the first medium circuit and the second medium circuit may be solenoid valves. The control device 44 adjusts the flow of the refrigerant in the first medium circuit and / or the cooling water in the second medium circuit by controlling the opening of the solenoid valves, thereby adjusting the refrigeration efficiency.

[0066] In one embodiment, when the first medium circuit is connected, the control device 44 controls the power supply module to supply power to the compressor 42 so that the refrigerant circulates in the first medium circuit.

[0067] In one embodiment, when the second medium circuit is connected, the control device 44 controls the water pump to pump cooling water from the cold water source and output it to the plate evaporator 41, so that the cooling water circulates in the second medium circuit.

[0068] In some embodiments, when the power resources are sufficient, the control device 44 controls the first medium circuit to be connected and the second medium circuit to be disconnected, so that the refrigerant is used to complete the heat exchange with the heat load in the plate evaporator 41, reducing the demand for natural water resources. In some embodiments, when the cooling water provided by the cold water source is sufficient, the control device 44 controls the first medium circuit to be disconnected and the second medium circuit to be connected, so that the cooling water is used to complete the heat exchange with the heat load in the plate evaporator 41, reducing the demand for power resources.

[0069] In one embodiment, when the power resources are sufficient, the control device 44 can control the first medium circuit to be connected and the second medium circuit to be disconnected, and use the compression refrigeration of the compressor 42 to cool the refrigerant, so that the cooled refrigerant circulates in the plate evaporator 41, takes away the heat of the heat load, and completes the heat exchange with the heat load. In one embodiment, when the cooling water provided by the cold water source is sufficient, the control device 44 can control the second medium circuit to be connected and the first medium circuit to be closed, and use the cooling water to circulate in the plate evaporator 41, takes away the heat of the heat load, and completes the heat exchange with the heat load.

[0070] In one embodiment, the cooling system 100 may include a detection component, which may be connected to the plate evaporator 41 to detect the water level of the cold water source. In this case, the control device 44 may also select the on / off of the first medium circuit and the on / off of the second medium circuit according to the water level of the cold water source.

[0071] In one embodiment, when the water level of the cold water source is lower than the threshold, the control device 44 controls the first medium circuit to be connected and the second medium circuit to be disconnected, so as to use the electric power resources to cool the heat load of the liquid cooling device, thereby improving the cooling efficiency. In one embodiment, when the water level of the cold water source is higher than the threshold, the control device 44 controls the second medium circuit to be connected and the first medium circuit to be disconnected, so as to use the natural water resources to cool the heat load of the liquid cooling device, thereby saving costs.

[0072] In some embodiments, the chiller 40 further includes a water tank containing cooling water. The heat load after heat exchange in the plate evaporator 41 can be collected in the water tank, and heat exchange can be performed again through the water tank, and the heat load after heat exchange can be returned to the liquid cooling device.

[0073] In one embodiment, a water tank may be connected to one end of the plate evaporator 41 that outputs the heat load after heat exchange, and the water tank may perform heat exchange again on the heat load after heat exchange, which may further improve the cooling efficiency of the cooling system. In addition, the water tank may also buffer the heat load after heat exchange and even out the temperature of the heat load, so that the heat load after heat exchange can be input into the liquid cooling device at a suitable temperature.

[0074] In one embodiment, the chiller 40 further includes: a liquid storage tank connected to the plate evaporator 41. A refrigerant is stored in the liquid storage tank. When the first medium loop is connected, the control device 44 can control the liquid storage tank to output the refrigerant to the plate evaporator 41. When the first medium loop is disconnected, the control device 44 can control the liquid storage tank to stop outputting the refrigerant to the plate evaporator 41.

[0075] In one embodiment, a liquid storage tank may be connected to the input end of the cold medium of the plate evaporator 41. The liquid storage tank may store a cold medium, such as a liquid cold medium. In one embodiment, when the first medium loop is connected, the control device 44 controls the liquid storage tank to output the cold medium to the plate evaporator 41, so that the cold medium and the heat load of the liquid cooling device perform heat exchange. In one embodiment, when the first medium loop is disconnected, the control device 44 controls the liquid storage tank to stop outputting the cold medium to the plate evaporator 41, so that cooling water can be input into the plate evaporator 41, and the cooling water and the heat load of the liquid cooling device perform heat exchange.

[0076] In the disclosed embodiment, the plate evaporator in the chiller can form a first medium circuit with the compressor and the dry cooler in the chiller, and the plate evaporator in the chiller can form a second medium circuit with the cold water source, so that the plate evaporator can be in different medium circuits. The first medium circuit and the second medium circuit are controlled by the control device to be in different on-off states, and the heat load output by the liquid cooling device can be heat exchanged with the refrigerant in the first medium circuit, or can be heat exchanged with the cooling water in the second medium circuit. In this process, by switching the refrigerant and the cooling water, the type of cooling source used by the chiller can be changed, so that the chiller can be suitable for different application scenarios. There is no need to add other cooling equipment to the cooling system in the disclosed embodiment, which effectively reduces equipment costs and saves space.

[0077] Figure 2 is a schematic diagram of a second cooling structure of a cooling system provided by an embodiment of the present disclosure. Figure 2 As shown, the cooling system 100 may include a chiller 40. The liquid cooling device may include: a heat dissipation device, a power distribution cabinet, and a water pump station. The power distribution cabinet may supply power to the heat dissipation device, and the heat dissipation device may, under the action of a water pump in the water pump station, allow the coolant to perform heat exchange with the server, and the coolant after the heat exchange is heated to form a heat load. The liquid cooling device may also be connected to the plate evaporator 41 in the chiller 40 through a pipeline.

[0078] In one embodiment, the water pump in the water pump station can pump the heat load of the liquid cooling device into the first input interface of the plate evaporator 41 in the chiller 40 through the output interface of the liquid cooling device. After the heat load undergoes heat exchange in the plate evaporator 41, it can be output to the water tank 54 through the first output interface of the plate evaporator 41. After the heat load undergoes secondary heat exchange in the water tank, it re-enters the liquid cooling device through the input interface of the liquid cooling device.

[0079] In one embodiment, the chiller 40 may include: a plate evaporator 41, a compressor 42, a dry cooler 43, a liquid storage tank 55, a water tank 54, a water pump, a first valve 56, and a second valve 57. The second output interface of the plate evaporator 41 is connected to the first interface of the first valve 56, the first interface of the first valve 56 is connected to the second interface of the first valve 56, the second interface of the first valve 56 is connected to the compressor 42, the compressor 42 is connected to the dry cooler 43, the dry cooler 43 is connected to the liquid storage tank 55 and then connected to the first interface of the second valve 57, the first interface of the second valve 57 is connected to the second interface of the second valve 57, and the second interface of the second valve 57 is connected to the second input interface of the plate evaporator 41 to form a first medium loop. The second output interface of the plate evaporator 41 is connected to the first interface of the first valve 56, the first interface of the first valve 56 is connected to the third interface of the first valve 56, the third interface of the first valve 56 is connected to the cold water source, the cold water source is connected to the third interface of the second valve 57, the third interface of the second valve 57 is connected to the second interface of the second valve 57, and the second interface of the second valve 57 is connected to the second input interface of the plate evaporator 41 to form a second medium loop.

[0080] In one embodiment, the control device 44 controls the first interface of the first valve 56 to connect to the second interface of the first valve 56 and the first interface of the first valve 56 to disconnect the third interface of the first valve 56, controls the first interface of the second valve 57 to connect to the second interface of the second valve 57 and the second interface of the second valve 57 to disconnect the third interface of the second valve 57, so that the first medium loop is connected and the second medium loop is disconnected. The control device 44 controls the liquid storage tank 55 to output the refrigerant to the plate evaporator 41 and the power supply module to power the compressor 42. The refrigerant enters the plate evaporator 41 through the second input interface of the plate evaporator 41, heats up after heat exchange with the heat load of the liquid cooling device, and then enters the compressor 42 through the second output interface of the plate evaporator 41. The compressor 42 can compress the refrigerant, and the formed refrigerant has the characteristics of high temperature and high pressure; then, the high temperature and high pressure refrigerant can be cooled in the dry cooler 43, and the cooled refrigerant becomes a low temperature refrigerant after pressure relief, so that it can be input into the plate evaporator 41 again to cycle the above process.

[0081] In one embodiment, the control device 44 controls the first interface of the first valve 56 to disconnect the second interface of the first valve 56 and the first interface of the first valve 56 to connect to the third interface of the first valve 56, and controls the first interface of the second valve 57 to disconnect the second interface of the second valve 57 and the second interface of the second valve 57 to connect to the third interface of the second valve 57, so that the second medium loop is connected and the first medium loop is disconnected. The control device 44 controls the water pump to make the cold water source output cooling water to the plate evaporator 41. The cooling water enters the plate evaporator 41 through the second input interface of the plate evaporator 41, heats up after heat exchange with the heat load of the liquid cooling device, and then enters the cold water source through the second output interface of the plate evaporator 41. The cooling water in the cold water source can be input into the plate evaporator 41 again to circulate the above process.

[0082] In the disclosed embodiment, the plate evaporator 41 in the chiller 40 can realize refrigeration in different application scenarios, thereby eliminating the need to add other cooling equipment to the cooling system, effectively reducing equipment costs and saving space.

[0083] Figure 3 is a schematic diagram of a third cooling structure of a cooling system provided by an embodiment of the present disclosure. Figure 3 As shown, the heat load of the liquid cooling device can also be output by the liquid cooling device to the dry cooler 43 of the chiller 40, and heat exchange is performed in the dry cooler 43, and the heat load after the heat exchange is returned to the liquid cooling device.

[0084] It can be understood that the dry cooler 43 includes a dry cooling pipe, and the heat load of the liquid cooling device can flow in the dry cooling pipe and exchange heat with the air outside the dry cooling pipe to achieve cooling of the heat load.

[0085] In some embodiments, the control device 44 can control the heat load to be input from the liquid cooling device to the dry cooler 43 for heat exchange. In some embodiments, the control device 44 can control the heat load to be input from the liquid cooling device to the plate evaporator 41 for heat exchange. In some embodiments, the control device 44 can control the heat load to be input from the liquid cooling device to the plate evaporator 41 for heat exchange, and at the same time control the heat load to be input from the liquid cooling device to the plate evaporator 41 for heat exchange.

[0086] In one embodiment, a valve may be provided between the liquid cooling device and the chiller 40, and the control device 44 may control whether the heat load is input to the dry cooler 43 for heat exchange by controlling the opening and closing of the valve. The control device 44 may control whether the heat load is input to the plate evaporator 41 for heat exchange by controlling the opening and closing of the valve.

[0087] In one embodiment, the valve between the liquid cooling device and the chiller 40 may be a one-way valve. The control device 44 may control the opening and closing of the one-way valve between the liquid cooling device and the dry cooler 43 and / or the opening and closing of the one-way valve between the liquid cooling device and the plate evaporator 41, so as to control the on-off between the liquid cooling device and the dry cooler 43 and the on-off between the liquid cooling device and the plate evaporator 41.

[0088] In some embodiments, the valve between the liquid cooling device and the chiller 40 may be a multi-way valve, and different interfaces of the multi-way valve are respectively connected to the dry cooler 43 and the plate evaporator 41. The control device 44 may control the opening and closing of different interfaces in the multi-way valve to control the connection and disconnection between the liquid cooling device and the dry cooler 43 and between the liquid cooling device and the plate evaporator 41.

[0089] In some embodiments, the valve between the liquid cooling device and the chiller 40 can be a solenoid valve, and the control device 44 adjusts the flow of the heat load input into the dry cooler 43 by controlling the opening of the solenoid valve, thereby adjusting the refrigeration efficiency; or, by controlling the opening of the solenoid valve, the flow of the heat load input into the plate evaporator 41 is adjusted to thereby adjust the refrigeration efficiency.

[0090] In one embodiment, the dry cooler 43 may include a fan, and the refrigeration efficiency of the dry cooler 43 may be adjusted by controlling the operating frequency of the fan.

[0091] It is understandable that in the application scenario where the temperature is not very high but water is scarce, the dry cooler 43 can be used for heat exchange. The cooling system 100 can use the dry cooler 43 to exchange heat with the heat load in an environment where water is scarce, use the cooling water in the plate evaporator 41 to exchange heat with the heat load in an environment where water resources are abundant, and use the refrigerant medium in the plate evaporator 41 to exchange heat with the heat load in an environment where power resources are abundant, so that the chiller 40 can be applied to more application scenarios, thereby effectively reducing equipment costs and saving space.

[0092] Figure 4 is a schematic diagram of a fourth cooling structure of a cooling system provided by an embodiment of the present disclosure. Figure 4 As shown, the liquid cooling device can be connected to the plate evaporator 41 of the chiller 40 through a pipeline, and can also be connected to the dry cooler 43 of the chiller 40 through a pipeline.

[0093] In one embodiment, the water pump can input the heat load of the liquid cooling device into the dry cooler 43 of the chiller 40 through the output interface of the liquid cooling device. After the heat load undergoes heat exchange in the dry cooler 43, it can be output by the dry cooler 43 to the input interface of the liquid cooling device to re-enter the liquid cooling device.

[0094] In one embodiment, the chiller 40 may further include: a third valve 58 and a fourth valve 59, the output interface of the liquid cooling device is connected to the first interface of the third valve 58, and the first interface of the third valve 58 is connected to the second interface of the third valve 58. The second interface of the third valve 58 is connected to the first input interface of the plate evaporator 41. The first output interface of the plate evaporator 41 is connected to the first interface of the fourth valve 59, the first interface of the fourth valve 59 is connected to the second interface of the fourth valve 59, and the second interface of the fourth valve 59 is connected to the input interface of the liquid cooling device, forming a loop between the liquid cooling device and the plate evaporator 41. The output interface of the liquid cooling device is connected to the first interface of the third valve 58, and the first interface of the third valve 58 is connected to the third interface of the third valve 58. The third interface of the third valve 58 is connected to the dry cooler 43, the dry cooler 43 is connected to the third interface of the fourth valve 59, the third interface of the fourth valve 59 is connected to the second interface of the fourth valve 59, and the second interface of the fourth valve 59 is connected to the input interface of the liquid cooling device, forming a loop between the liquid cooling device and the dry cooler 43.

[0095] In one embodiment, the control device 44 controls the first interface of the third valve 58 to connect to the second interface of the third valve 58 and the first interface of the third valve 58 to disconnect the third interface of the third valve 58, controls the first interface of the fourth valve 59 to connect to the second interface of the fourth valve 59 and the third interface of the fourth valve 59 to disconnect the second interface of the second valve 57, so that the heat load of the liquid cooling device is input into the plate evaporator 41 for heat exchange. The heat load of the liquid cooling device enters the plate evaporator 41 through the output interface of the liquid cooling device and the first input interface of the plate evaporator 41. After the heat load is heat exchanged in the plate evaporator 41, it can be output to the water tank 54 through the first output interface of the plate evaporator 41, and then output from the water tank 54 and re-enter the liquid cooling device through the input interface of the liquid cooling device.

[0096] It can be understood that when the control device 44 inputs the heat load of the liquid cooling equipment into the plate evaporator 41 for heat exchange, it can also control one of the first medium circuit or the second medium circuit to be connected so that the heat load can exchange heat with the refrigerant medium or cooling water in the plate evaporator 41.

[0097] In one embodiment, the control device 44 controls the first interface of the third valve 58 to disconnect the second interface of the third valve 58 and the first interface of the third valve 58 to connect the third interface of the third valve 58, and controls the first interface of the fourth valve 59 to disconnect the second interface of the fourth valve 59 and the third interface of the fourth valve 59 to connect the second interface of the second valve 57, so that the heat load of the liquid cooling device is input into the dry cooler 43 for heat exchange. The heat load of the liquid cooling device enters the dry cooler 43 through the output interface of the liquid cooling device. After the heat load exchanges heat with the external air in the dry cooler 43, it can be output from the dry cooler 43 and re-enter the liquid cooling device after passing through the input interface of the liquid cooling device.

[0098] It should be noted that, when the control device 44 controls the heat load of the liquid cooling equipment to simultaneously input the plate evaporator 41 and the dry cooler 43 for heat exchange, the control device 44 should also control the first interface of the first valve 56 to disconnect the second interface connected to the first valve 56 and the first interface of the first valve 56 to connect to the third interface of the first valve 56, and control the first interface of the second valve 57 to disconnect the second interface connected to the second valve 57 and the second interface of the second valve 57 to connect to the third interface of the second valve 57, so that the second medium circuit is connected and the first medium circuit is disconnected.

[0099] In the disclosed embodiment, the dry cooler 43 in the chiller 40 can realize cooling in different application scenarios, thereby eliminating the need to add other cooling equipment to the cooling system, effectively reducing equipment costs and saving space.

[0100] Figure 5 is a schematic diagram of a fifth cooling structure of a cooling system provided by an embodiment of the present disclosure. Figure 5 As shown, the cooling system further includes a cooling tower 80, and the cooling tower 80 includes a spray assembly. The heat load of the liquid cooling device can also be output by the liquid cooling device to the cooling tower 80, and the spray assembly performs heat exchange in the cooling tower 80 by spraying the cooling medium, and the heat load after the heat exchange is returned to the liquid cooling device.

[0101] It can be understood that the cooling tower 80 includes a cooling pipe and a spray assembly, and the spray assembly sprays cooling medium into the cooling pipe, so that the heat load inside the cooling pipe exchanges heat with the cooling medium outside the cooling pipe to achieve cooling of the heat load.

[0102] In some embodiments, the cooling tower 80 may be a closed cooling tower 80 .

[0103] In one embodiment, the cooling medium may be deionized water, ultrapure water, etc.

[0104] In some embodiments, the control device 44 can control the heat load to be input from the liquid cooling device to the cooling tower 80 for heat exchange. In some embodiments, the control device 44 can control the heat load to be input from the liquid cooling device to the cooling tower 80 for heat exchange, while controlling the heat load to be input from the liquid cooling device to the plate evaporator 41 for heat exchange and / or controlling the heat load to be input from the liquid cooling device to the dry cooler 43 for heat exchange.

[0105] In one embodiment, a valve may be provided between the liquid cooling device and the cooling tower 80 , and the control device 44 may control whether the heat load is input into the cooling tower 80 for heat exchange by controlling the opening and closing of the valve.

[0106] In one embodiment, the valve between the liquid cooling device and the cooling tower 80 may be a one-way valve. The control device 44 may control the one-way valve between the liquid cooling device and the cooling tower 80 to open and close, so as to control the connection between the liquid cooling device and the dry cooler 43 .

[0107] In some embodiments, the valve between the liquid cooling device and the cooling tower 80 may be a multi-way valve, and different interfaces of the multi-way valve are respectively connected to the cooling tower 80, the dry cooler 43, and the plate evaporator 41. The control device 44 can control the opening and closing of different interfaces in the multi-way valve to control the connection and disconnection between the liquid cooling device and the dry cooler 43, the connection and disconnection between the liquid cooling device and the plate evaporator 41, and the connection and disconnection between the liquid cooling device and the dry cooler 43.

[0108] In some embodiments, the valve between the liquid cooling device and the cooling tower 80 may be a solenoid valve, and the control device 44 adjusts the flow of the heat load input into the cooling tower 80 by controlling the opening of the solenoid valve, thereby adjusting the refrigeration efficiency.

[0109] In some embodiments, the control device 44 can adjust the flow rate of the heat load input into any two of the plate evaporator 41, the dry cooler 43 and the cooling tower 80 by controlling the opening of the multi-way valve, thereby adjusting the refrigeration efficiency.

[0110] In one embodiment, the cooling tower 80 may include a fan, and the cooling efficiency of the cooling tower 80 may be adjusted by controlling the operating frequency of the fan.

[0111] In one embodiment, the chiller 40 and the cooling tower 80 may be combined and arranged in a container, so that the structure of the cooling system 100 is more compact.

[0112] It is understandable that in application scenarios with high temperatures, the cooling tower 80 can be used for heat exchange, thereby saving refrigeration costs. After the cooling tower 80 is added to the cooling system, the cooling tower 80 can be used to exchange heat with the heat load in a high-temperature environment, the dry cooler 43 can be used to exchange heat with the heat load in a low-temperature environment, the cooling water in the plate evaporator 41 can be used to exchange heat with the heat load in an environment with abundant water resources, and the refrigerant medium in the plate evaporator 41 can be used to exchange heat with the heat load in an environment with abundant electric power resources, so that the cooling system 100 can be applied to more application scenarios to meet the user's usage needs.

[0113] Figure 6 is a schematic diagram of a sixth cooling structure of a cooling system provided by an embodiment of the present disclosure. Figure 6 As shown, the liquid cooling device can be connected to the plate evaporator 41 of the chiller 40 through a pipeline, can be connected to the dry cooler 43 of the chiller 40 through a pipeline, and can also be connected to the cooling tower 80 through a pipeline.

[0114] In one embodiment, the water pump can input the heat load of the liquid cooling device into the cooling tower 80 through the output interface of the liquid cooling device. After the heat load undergoes heat exchange in the cooling tower 80, it can be output by the cooling tower 80 to the input interface of the liquid cooling device to re-enter the liquid cooling device.

[0115] In one embodiment, the chiller 40 may further include: a third valve 58 and a fourth valve 59, the output interface of the liquid cooling device is connected to the first interface of the third valve 58, and the first interface of the third valve 58 is connected to the second interface of the third valve 58. The second interface of the third valve 58 is connected to the first input interface of the plate evaporator 41. The first output interface of the plate evaporator 41 is connected to the first interface of the fourth valve 59, the first interface of the fourth valve 59 is connected to the second interface of the fourth valve 59, and the second interface of the fourth valve 59 is connected to the input interface of the liquid cooling device, forming a loop between the liquid cooling device and the plate evaporator 41. The output interface of the liquid cooling device is connected to the first interface of the third valve 58, and the first interface of the third valve 58 is connected to the third interface of the third valve 58. The third interface of the third valve 58 is connected to the dry cooler 43, the dry cooler 43 is connected to the third interface of the fourth valve 59, the third interface of the fourth valve 59 is connected to the second interface of the fourth valve 59, and the second interface of the fourth valve 59 is connected to the input interface of the liquid cooling device, forming a loop between the liquid cooling device and the dry cooler 43. The output interface of the liquid cooling device is connected to the first interface of the third valve 58, and the first interface of the third valve 58 is connected to the fourth interface of the third valve 58. The fourth interface of the third valve 58 is connected to the cooling tower 80, and the cooling tower 80 is connected to the fourth interface of the fourth valve 59, and the fourth interface of the fourth valve 59 is connected to the second interface of the fourth valve 59, and the second interface of the fourth valve 59 is connected to the input interface of the liquid cooling device, forming a loop between the liquid cooling device and the cooling tower 80.

[0116] In one embodiment, the control device 44 controls the first interface of the third valve 58 to connect to the fourth interface of the third valve 58 and the first interface of the third valve 58 to disconnect the second interface of the third valve 58 and the third interface of the third valve 58, and controls the second interface of the fourth valve 59 to connect to the fourth interface of the fourth valve 59 and the second interface of the fourth valve 59 to disconnect the first interface of the fourth valve 59 and the third interface of the fourth valve 59, so that the heat load of the liquid cooling device is input into the cooling tower 80 for heat exchange. The heat load of the liquid cooling device enters the cooling tower 80 through the output interface of the liquid cooling device. After the heat load is heat exchanged in the cooling tower 80, it can be output from the cooling tower 80 and then re-enter the liquid cooling device through the input interface of the liquid cooling device.

[0117] It is understandable that when the control device 44 controls the heat load of the liquid cooling device to be input into the cooling tower 80 for heat exchange, it can also control the heat load of the liquid cooling device to be input into the plate evaporator 41 and / or the dry cooler 43. When the control device 44 controls the heat load of the liquid cooling device to be input into the plate evaporator 41 and / or the dry cooler 43, the opening and closing of the third valve 58 and the fourth valve 59 can refer to the description in one or more of the above embodiments, and for the sake of brevity of the specification, it will not be repeated here.

[0118] In the embodiments of the present disclosure, the cooling system can realize refrigeration in different application scenarios, thereby effectively reducing equipment costs and saving space.

[0119] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0120] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A cooling system connected to a liquid cooling device, characterized in that: The cooling system comprises: A chiller, comprising a plate evaporator, a compressor and a dry cooler; wherein the plate evaporator, the compressor and the dry cooler form a first medium circuit, a refrigerant medium circulates in the first medium circuit, the plate evaporator and a cold water source form a second medium circuit, cooling water provided by the cold water source circulates in the second medium circuit; A control device for controlling the connection of the first medium circuit and the disconnection of the second medium circuit, wherein the heat load of the liquid cooling equipment exchanges heat with the refrigerant medium in the plate evaporator; or also for controlling the disconnection of the first medium circuit and the connection of the second medium circuit, wherein the heat load of the liquid cooling equipment exchanges heat with the cooling water in the plate evaporator.

2. The cooling system according to claim 1, characterized in that: The control device is further used to control the connection of the first medium circuit and the disconnection of the second medium circuit when the power resources are sufficient; or, it is also used to control the disconnection of the first medium circuit and the connection of the second medium circuit when the cooling water provided by the cold water source is sufficient.

3. The cooling system according to claim 1, characterized in that: In the first medium circuit, the refrigerant is input into the plate evaporator to perform heat exchange with the heat load, and the refrigerant after the heat exchange is compressed by the compressor and cooled by the dry cooler in turn, and then input into the plate evaporator again; In the second medium loop, the cooling water is input from a cold water source into the plate evaporator to perform heat exchange with the heat load, and the cooling water after the heat exchange is output to the cold water source.

4. The cooling system according to claim 1, characterized in that: The heat load is output from the liquid cooling device to the plate evaporator, and heat exchange is performed in the plate evaporator. The heat load after the heat exchange is returned to the liquid cooling device.

5. The cooling system according to claim 4, characterized in that: The water chiller also includes a water tank; the heat load after the heat exchange is subjected to secondary heat exchange via the water tank and is returned to the liquid cooling device.

6. The cooling system according to claim 1, characterized in that: The chiller further comprises: a liquid storage tank connected to the plate evaporator, wherein the refrigerant medium is stored in the liquid storage tank; The control device is further used to control the liquid storage tank to output the refrigerant to the plate evaporator when the first medium circuit is connected; or to control the liquid storage tank to stop outputting the refrigerant to the plate evaporator when the first medium circuit is disconnected.

7. The cooling system according to claim 1, characterized in that: The chiller also includes: a power supply module connected to the compressor; The control device is also used to control the power supply module to supply power to the compressor when the first medium circuit is connected.

8. The cooling system according to claim 1, characterized in that: The heat load is output from the liquid cooling device to the dry cooler, and heat exchange is performed in the dry cooler. The heat load after the heat exchange is returned to the liquid cooling device.

9. The cooling system according to claim 1, characterized in that: The cooling system also includes a cooling tower, which includes a spray assembly; the heat load is output by the liquid cooling device to the cooling tower, and the spray assembly performs heat exchange in the cooling tower by spraying a cooling medium, and the heat load after the heat exchange is returned to the liquid cooling device.

10. The cooling system according to any one of claims 4 to 9, characterized in that: The control device is further configured to perform at least one of the following: Controlling the heat load to be input from the liquid cooling device into the plate evaporator for heat exchange; Controlling the heat load to be input from the liquid cooling device into the dry cooler for heat exchange; The heat load is controlled to be input into the cooling tower by the liquid cooling device for heat exchange.

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