Cooling component, control method and device, readable storage medium, heat exchange unit

Abstract

The present invention provides a cooling assembly, a control method for a cooling assembly, a control device for a cooling assembly, a readable storage medium, and a heat exchange unit. The cooling assembly includes a condenser, an evaporator, a refrigerant drive assembly, a cooling component, and a plurality of control valves; the refrigerant input end of the refrigerant drive assembly is connected to the condenser and the evaporator, respectively; the first end of the cooling component is connected to the refrigerant output end of the refrigerant drive assembly; at least one control valve among the plurality of control valves is arranged between the refrigerant drive assembly and the condenser, and at least another control valve other than at least one control valve among the plurality of control valves is arranged between the refrigerant drive assembly and the evaporator; wherein the refrigerant drive assembly can guide the refrigerant from the condenser and / or evaporator to the cooling component according to the status of the plurality of control valves. The cooling assembly provided by the present invention can improve the cooling effect on the cooled components in the equipment system.

Description

Technical Field

[0001] The present invention relates to the technical field of chillers, and in particular to a cooling assembly, a control method for a cooling assembly, a control device for a cooling assembly, a readable storage medium, and a heat exchange unit. Background Art

[0002] Currently, chiller components such as motors, lubricants, and inverters are cooled using refrigerant. This cooling is driven by a pressure differential between the condenser and the evaporator, or between the condenser and the economizer. The refrigerant primarily comes from the liquid refrigerant in the condenser. However, when the system's refrigerant migrates or operating conditions change dramatically, the condenser's liquid volume may decrease, causing insufficient or no liquid to enter the cooling pipelines, resulting in reduced cooling efficiency for the motor, lubricant, and inverter. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, a first aspect of the present invention provides a cooling assembly.

[0005] A second aspect of the present invention provides a control method for a cooling assembly.

[0006] A third aspect of the present invention provides a control device for a cooling assembly.

[0007] A fourth aspect of the present invention provides a control device for a cooling assembly.

[0008] A fifth aspect of the present invention provides a readable storage medium.

[0009] A sixth aspect of the present invention provides a heat exchange unit.

[0010] In view of this, a first aspect of the present invention provides a cooling component, including a condenser, an evaporator, a refrigerant drive component, a cooling part and a plurality of control valves; the refrigerant input end of the refrigerant drive component is connected to the condenser and the evaporator respectively; the first end of the cooling part is connected to the refrigerant output end of the refrigerant drive component; at least one control valve among the plurality of control valves is arranged between the refrigerant drive component and the condenser, and at least another control valve other than at least one control valve among the plurality of control valves is arranged between the refrigerant drive component and the evaporator; wherein the refrigerant drive component can guide the refrigerant from the condenser and / or evaporator to the cooling component according to the status of the plurality of control valves.

[0011] The cooling component provided by the present invention has a refrigerant input end of the refrigerant drive component that is connected to the condenser and the evaporator respectively, and a first end of the cooling component is connected to the refrigerant output end of the refrigerant drive component, thereby enabling the refrigerant drive component to transport the refrigerant in the condenser or evaporator to the cooling component to achieve cooling of the cooled components in the system.

[0012] At least one of the multiple control valves is arranged between the refrigerant drive assembly and the condenser, and at least another control valve other than at least one of the multiple control valves is arranged between the refrigerant drive assembly and the evaporator, which can control the conduction or disconnection between the cooling drive assembly and the evaporator, as well as between the refrigerant drive assembly and the condenser, so that the refrigerant drive assembly can drive the refrigerant in the evaporator into the cooling component, and can also drive the refrigerant in the condenser into the cooling component. Since in the equipment system, the refrigerant is mainly stored in the condenser or the evaporator, the condenser and the evaporator will not lack refrigerant at the same time, so the refrigerant in the evaporator can be sent to the cooling component through multiple control valves and refrigerant drive assemblies, and the refrigerant in the condenser can also be sent to the cooling component, which can avoid affecting the cooling effect of the cooling component due to less refrigerant in the condenser, thereby improving the cooling effect of the cooled components in the equipment system.

[0013] Since the cooling effect of the cooled components in the equipment system can be improved by setting up a refrigerant drive component and multiple control valves, the stability of the operation of the cooled components can be improved, and the probability of the cooled components being damaged due to overheating can be reduced, thereby extending the service life of the cooled components.

[0014] By providing a refrigerant driving component to drive the refrigerant from the condenser into the cooling component, even if the pressure in the condenser is low, it will not affect the refrigerant delivery speed, which can further improve the cooling effect of the cooling component.

[0015] In addition, the cooling assembly in the above technical solution provided by the present invention may also have the following additional technical features:

[0016] In one technical solution of the present invention, the cooling component also includes a first pipeline, a second pipeline, a first control valve and a second control valve; the first end of the first pipeline is connected to the condenser, and the second end of the first pipeline is connected to the refrigerant input end of the refrigerant drive component; the first end of the second pipeline is connected to the evaporator, and the second end of the second pipeline is connected to the refrigerant input end of the refrigerant drive component; the first control valve is arranged on the first pipeline; the second control valve is arranged on the second pipeline.

[0017] In this technical solution, the first end of the first pipeline is connected to the condenser, and the second end of the first pipeline is connected to the refrigerant input end of the refrigerant drive assembly, allowing the refrigerant to enter the refrigerant drive assembly from the condenser under the action of the refrigerant drive assembly. A first control valve is provided on the first pipeline to control the connection or disconnection between the refrigerant drive assembly and the condenser, thereby achieving control of the first pipeline.

[0018] The first end of the second pipeline is connected to the evaporator, and the second end of the second pipeline is connected to the refrigerant input end of the refrigerant drive assembly, so that the refrigerant can enter the refrigerant drive assembly from the evaporator under the action of the refrigerant drive assembly. The second control valve is disposed on the second pipeline and can control the connection or disconnection between the refrigerant drive assembly and the evaporator, thereby achieving control of the second pipeline.

[0019] Since the first control valve and the second control valve can control the first pipeline and the second pipeline respectively, the first pipeline and the second pipeline can be disconnected when necessary, thereby preventing the condenser and the evaporator from being directly connected without passing through the refrigeration component, thereby ensuring that the refrigerant in the condenser or evaporator can smoothly enter the cooling component.

[0020] In one technical solution of the present invention, the refrigerant drive assembly includes a drive pipeline, which includes an air inlet and a contraction portion; the air inlet is connected to the first pipeline; the first end of the contraction portion is connected to the air inlet, and the second end of the contraction portion is connected to the cooling component; a liquid inlet is provided on the tube wall of the contraction portion, and the liquid inlet is connected to the second pipeline; wherein the inner diameter of the contraction portion is smaller than the inner diameter of the air inlet.

[0021] In this technical solution, the refrigerant drive assembly includes a drive pipeline, which includes an air inlet and a contraction portion, wherein the first end of the air inlet is connected to the first end of the contraction portion. The second end of the air inlet is connected to the first pipeline, and the second end of the contraction portion is connected to the cooling component. When the refrigerant passes through the drive pipeline, since the inner diameter of the contraction portion is smaller than the inner diameter of the air inlet, the speed of the refrigerant increases when the refrigerant flows from the air inlet to the contraction portion. A liquid inlet is provided on the side wall of the contraction portion, and the second pipeline is connected to the liquid inlet. When the refrigerant in the drive pipeline passes through the contraction portion, a certain negative pressure area is formed at the liquid inlet, thereby driving the refrigerant in the second pipeline and the evaporator into the cooling component, thereby utilizing the high-pressure refrigerant in the condenser as power to drive the refrigerant in the evaporator into the cooling component to achieve cooling of the heating elements in the equipment system.

[0022] Since the refrigerant in the evaporator can be driven to enter the cooling components by the high-pressure refrigerant in the condenser, the energy consumption required to drive the refrigerant in the evaporator to move is reduced, and the energy utilization rate of the cooling components is improved.

[0023] In one technical solution of the present invention, the cooling assembly further includes a third pipeline and a third control valve, the first end of the third pipeline is connected to the condenser, and the second end of the third pipeline is connected to the cooling component; the third control valve is arranged on the third pipeline.

[0024] In this technical solution, the first end of the third pipe is connected to the condenser, and the second end of the third pipe is connected to the cooling component. When the refrigerant in the condenser needs to cool the cooled component, the third control valve can be switched to the open state, allowing the refrigerant in the condenser to enter the cooling component directly under the action of pressure, reducing the energy consumption required to drive the refrigerant in the condenser and improving the energy utilization rate of the cooling component. When the refrigerant in the evaporator needs to be driven into the cooling component, the third control valve can be switched to the closed state, thereby preventing the third control valve from affecting the refrigerant in the evaporator.

[0025] In one technical solution of the present invention, the cooling assembly further includes a gas-liquid separator, a fourth pipeline, and a fourth control valve; the gas-liquid separator is connected to the second end of the cooling component; the first end of the fourth pipeline is connected to the liquid storage end of the gas-liquid separator, and the second end of the fourth pipeline is connected to the evaporator. The fourth control valve is disposed on the fourth pipeline.

[0026] In this technical solution, the first end of the gas-liquid separator is connected to the second end of the cooling component, the first end of the fourth pipeline is connected to the liquid storage end of the gas-liquid separator, and the second end of the fourth pipeline is connected to the evaporator, so that the refrigerant after passing through the cooling component is separated into gas and liquid after entering the gas-liquid separator, and the liquid refrigerant returns to the evaporator.

[0027] In addition, the first end of the fourth pipeline is connected to the liquid storage end of the gas-liquid separator, and the second end of the fourth pipeline is connected to the evaporator, so that the condenser can be connected to the evaporator through the first pipeline, the refrigerant driving component, the cooling component, the gas-liquid separator and the fourth pipeline, and then the pressure difference between the condenser and the evaporator is used to provide power for the gaseous refrigerant or liquid refrigerant in the condenser, so that the liquid refrigerant in the condenser can enter the cooling component, or the gaseous refrigerant in the condenser drives the liquid refrigerant in the evaporator to enter the cooling component, thereby realizing the driving of the refrigerant, reducing the energy consumption required to drive the refrigerant movement in the evaporator, and improving the energy utilization rate of the cooling component.

[0028] The fourth control valve is arranged on the fourth pipeline. The fourth control valve can switch between the closed state and the open state according to the needs of the refrigerant flow, thereby realizing the control of the fourth pipeline.

[0029] In one technical solution of the present invention, the cooling assembly further includes a compressor, a fifth pipeline, and a fifth control valve. The compressor includes a return air port, an exhaust port, and a guide vane. The exhaust port is connected to the condenser, and the return air port is located on a first side of the guide vane and is connected to the evaporator. The first end of the fifth pipeline is connected to the gas storage end of the gas-liquid separator, and the second end of the fifth pipeline is connected to the second side of the guide vane. The fifth control valve is disposed on the fifth pipeline.

[0030] In this technical solution, the compressor includes a return air port, an exhaust port and a guide vane. The exhaust port is provided at the first end of the compressor and is connected to the condenser to deliver the compressed high-temperature and high-pressure refrigerant to the condenser. A guide vane is provided at the second end of the compressor, and a return air port is provided on the first side of the guide vane. The return air port is connected to the evaporator, thereby allowing the low-temperature and low-pressure gaseous refrigerant in the evaporator to flow back to the compressor. The cooling component also includes a fifth pipeline and a fifth control valve. The first end of the fifth pipeline is connected to the gas storage end of the gas-liquid separator, and the second end of the fifth pipeline is connected to the second side of the guide vane, so that the refrigerant after passing through the cooling component is separated into gas and liquid after entering the gas-liquid separator, and the gaseous refrigerant returns to the evaporator.

[0031] In addition, the first end of the fifth pipeline is connected to the gas storage end of the gas-liquid separator, and the second end of the fifth pipeline is connected to the second side of the guide vane, so that the condenser can be connected to the second side of the guide vane after passing through the first pipeline, the refrigerant driving component, the cooling component, the gas-liquid separator and the fifth pipeline. Then, when the pressure difference between the condenser and the evaporator cannot drive the refrigerant to move, the pressure difference between the condenser and the second side of the guide vane is used to provide power for the gaseous refrigerant or liquid refrigerant in the condenser, so that the liquid refrigerant in the condenser can enter the cooling component, or the gaseous refrigerant in the condenser drives the liquid refrigerant in the evaporator to enter the cooling component, thereby realizing the driving of the refrigerant, reducing the energy consumption required to drive the refrigerant movement in the evaporator, and improving the energy utilization rate of the cooling component.

[0032] The fifth control valve is arranged on the fifth pipeline. The fifth control valve can switch between the closed state and the open state according to the needs of the refrigerant flow, thereby realizing the control of the fifth pipeline.

[0033] In one technical solution of the present invention, the refrigerant driving assembly includes a driving pump.

[0034] In this technical solution, the refrigerant is driven by a driving pump and is not controlled by the pressure difference between the various components in the cooling assembly, making it more convenient for the cooling assembly to drive the refrigerant.

[0035] In one technical solution of the present invention, the cooling component includes a compressor cooler, an inverter cooler and / or an oil tank cooler.

[0036] In this technical solution, the compressor cooler is installed around the compressor motor to cool the compressor motor. The inverter cooler is used to cool the inverter. The oil tank cooler is used to cool the lubricating oil.

[0037] A second aspect of the present invention provides a method for controlling a cooling component, comprising obtaining a pressure difference between an evaporator and a condenser; obtaining a temperature value of a cooled component; and controlling the states of a plurality of control valves according to the pressure difference and the temperature value to guide the refrigerant from the condenser and / or the evaporator to the cooling component.

[0038] The control method of the cooling component provided by the present invention controls the opening state of multiple valves according to the pressure difference between the evaporator and the condenser and the temperature value of the cooled component, thereby being able to control the refrigerant in the evaporator to enter the cooling component, and also to drive the refrigerant in the condenser to enter the cooling component. Since in the equipment system, the refrigerant is mainly stored in the condenser or the evaporator, the condenser and the evaporator will not lack refrigerant at the same time. Therefore, the refrigerant in the evaporator can be sent to the cooling component through multiple control valves and refrigerant drive components, and the refrigerant in the condenser can also be sent to the cooling component. This can avoid affecting the cooling effect of the cooling component due to less refrigerant in the condenser, thereby improving the cooling effect of the cooled component in the equipment system.

[0039] Since the cooling effect of the cooled components in the equipment system can be improved by setting up a refrigerant drive component and multiple control valves, the stability of the operation of the cooled components can be improved, and the probability of the cooled components being damaged due to overheating can be reduced, thereby extending the service life of the cooled components.

[0040] In addition, the control method of the cooling assembly in the above technical solution provided by the present invention may also have the following additional technical features:

[0041] In one technical solution of the present invention, multiple control valves include a first control valve, a second control valve, a third control valve, a fourth control valve and a fifth control valve. Controlling the multiple control valves to open or close according to the pressure difference and the temperature value includes: based on the pressure difference being greater than or equal to the first pressure threshold and the temperature value being greater than the temperature threshold, controlling the first control valve, the second control valve and the fourth control valve to open, and controlling the third control valve and the fifth control valve to close.

[0042] In this technical solution, if the pressure difference between the condenser and the evaporator is above or equal to the first pressure threshold, and the temperature value is greater than the temperature threshold, that is, when the liquid refrigerant in the condenser is insufficient, the system switches to the refrigerant migration mode. In the refrigerant migration mode, the amount of liquid refrigerant in the condenser is reduced, causing insufficient liquid or no liquid in the cooling pipeline. The first control valve is opened, the second control valve is opened, the fourth control valve is opened, the third control valve is closed, and the fifth control valve is closed. In this state, high-pressure and high-temperature gaseous refrigerant is extracted from the condenser, passes through the drive pipeline, and extracts low-temperature and low-pressure liquid refrigerant from the evaporator. After passing through the sixth control valve, the seventh control valve and the eighth control valve, it becomes a low-temperature and low-pressure gas-liquid mixture and enters the gas-liquid separator, and then returns to the evaporator, thereby cooling the cooled components and improving the cooling effect on the cooled components.

[0043] The first pressure threshold is the pressure difference between the evaporator and the condenser when the cooling system is operating normally.

[0044] The temperature threshold is the maximum temperature that can ensure the normal operation of the cooled component.

[0045] In one technical solution of the present invention, multiple control valves include a first control valve, a second control valve, a third control valve, a fourth control valve and a fifth control valve. Controlling the multiple control valves to open or close according to the pressure difference and the temperature value includes: based on the pressure difference being greater than or equal to the first pressure threshold and the temperature value being less than or equal to the temperature threshold, controlling the third control valve and the fourth control valve to open, and controlling the first control valve, the second control valve and the fifth control valve to close.

[0046] In this technical solution, if the pressure difference between the condenser and the evaporator is above or equal to a first pressure threshold and there is sufficient liquid refrigerant in the condenser, the third control valve is opened, the fourth control valve is opened, the first control valve is closed, the second control valve is closed, and the fifth control valve is closed. The openings of the sixth, seventh, and eighth control valves are controlled based on the temperatures of the cooled component and the cooling component, thereby adjusting the cooling effect on the cooled component. Furthermore, the refrigerant is driven by the pressure difference between the condenser and the evaporator, reducing the energy consumption required to drive the refrigerant in the evaporator and improving the energy efficiency of the cooling component.

[0047] In one technical solution of the present invention, multiple control valves include a first control valve, a second control valve, a third control valve, a fourth control valve and a fifth control valve. Controlling the multiple control valves to open or close according to the pressure difference and the temperature value includes: based on the pressure difference being less than the first pressure threshold, the pressure difference being greater than or equal to the second pressure threshold, and the temperature value being greater than the temperature threshold, controlling the first control valve, the second control valve and the fifth control valve to open, and controlling the third control valve and the fourth control valve to close.

[0048] In this technical solution, if the pressure difference between the condenser and the evaporator is between the first pressure threshold and the second pressure threshold, and the pressure difference is greater than or equal to the second pressure threshold, that is, when the liquid refrigerant in the condenser is insufficient, the system switches to the small pressure difference refrigerant migration mode.

[0049] In the small pressure difference refrigerant migration mode, the default amount of liquid refrigerant in the condenser is reduced, resulting in insufficient or no liquid in the cooling pipeline. At the same time, the pressure difference from the condenser to the evaporator is lower than the normal pressure difference. The system will gradually close the guide vane opening to the first preset value to provide a small amount of guide vane throttling pressure difference to open the first control valve, open the second control valve, open the fifth control valve, close the third control valve, and close the fourth control valve.

[0050] High-pressure and high-temperature gaseous refrigerant is extracted from the condenser, passes through the drive pipeline, and extracts low-temperature and low-pressure liquid refrigerant from the evaporator. After passing through the sixth control valve, the seventh control valve and the eighth control valve, it becomes a low-temperature and low-pressure gas-liquid mixture and enters the gas-liquid separator. Then the gaseous refrigerant returns to the second side of the guide vane, thereby cooling the cooled components and improving the cooling effect of the cooled components.

[0051] The second pressure threshold is the minimum pressure difference required to drive the liquid refrigerant in the evaporator into the cooling component through the driving pipeline.

[0052] In one technical solution of the present invention, the control method further includes adjusting the opening of the guide vane to adjust the pressure on the second side of the guide vane to a first pressure value.

[0053] In this technical solution, by adjusting the opening of the guide vane, the pressure on the second side of the guide vane is changed to a first pressure value, so that there is a sufficient pressure difference between the condenser and the second side of the guide vane to drive the refrigerant and improve the cooling effect on the cooled components.

[0054] The first pressure value can be obtained by calculation or by testing based on experimental data.

[0055] In one technical solution of the present invention, multiple control valves include a first control valve, a second control valve, a third control valve, a fourth control valve and a fifth control valve. According to the pressure difference and the temperature value, controlling the multiple control valves to open or close includes: based on the pressure difference being less than the second pressure threshold and the temperature value being less than or equal to the temperature threshold, controlling the third control valve and the fifth control valve to open, and controlling the first control valve, the second control valve and the fourth control valve to close.

[0056] In this technical solution, if the pressure difference between the condenser and the evaporator is below the second pressure threshold, the pressure difference between the evaporator and the condenser is not sufficient to drive the refrigerant in the condenser and the evaporator into the cooling component through the drive pipeline, and the system switches to the drive pipeline failure mode.

[0057] In drive line failure mode, the drive line has failed and cannot provide sufficient power to extract the refrigerant from the evaporator. The system gradually closes the guide vane opening to a second preset value to provide a medium guide vane throttling pressure differential, opens the third control valve, opens the fifth control valve, closes the first control valve, closes the second control valve, and closes the fourth control valve. In this state, high-pressure, high-temperature liquid refrigerant is extracted from the condenser, passes through the sixth, seventh, and eighth control valves, and the cooled components, and is converted into a low-temperature, low-pressure gas-liquid mixture that enters the gas-liquid separator. The gaseous refrigerant then returns to the second side of the guide vane, cooling the cooled components and improving the cooling effect.

[0058] In one technical solution of the present invention, the control method further includes adjusting the opening of the guide vane to adjust the pressure on the second side of the guide vane to a second pressure value.

[0059] In this technical solution, by adjusting the opening of the guide vane, the pressure on the second side of the guide vane is changed to a second pressure value, so that there is a sufficient pressure difference between the condenser and the second side of the guide vane to drive the refrigerant and improve the cooling effect on the cooled components.

[0060] The second pressure value can be obtained by calculation or by testing based on experimental data.

[0061] In one technical solution of the present invention, multiple control valves include a first control valve, a second control valve, a third control valve, a fourth control valve and a fifth control valve. Controlling the multiple control valves to open or close according to the pressure difference and the temperature value includes: based on the pressure difference being less than the second pressure threshold and the temperature value being greater than the temperature threshold, controlling the second control valve and the fifth control valve to open, and controlling the first control valve, the third control valve and the fourth control valve to close.

[0062] In this technical solution, if the pressure difference between the condenser and the evaporator is below the second pressure threshold, and the system is in the drive pipeline failure mode, and there is insufficient liquid refrigerant in the condenser, the system switches to the drive pipeline failure migration mode.

[0063] In the drive pipeline failure migration mode, the drive pipeline has failed and cannot provide sufficient power to extract the liquid refrigerant from the evaporator, and the amount of liquid refrigerant in the condenser is reduced, causing insufficient or no liquid in the cooling pipeline. The system will gradually close the guide vane opening to the third preset value to provide a large amount of guide vane throttling pressure difference, open the second control valve, open the fifth control valve, close the first control valve, close the third control valve, and close the fourth control valve.

[0064] In this state, low-temperature and low-pressure liquid refrigerant is extracted from the evaporator, and its power comes from the maximum throttling pressure difference provided by the evaporator pressure and the third preset value of the guide vane. The liquid refrigerant passes through the sixth control valve, the seventh control valve, the eighth control valve and the cooled components and becomes a low-temperature and low-pressure gas-liquid mixture and enters the gas-liquid separator. Then the gaseous refrigerant returns to the second side of the guide vane, thereby cooling the cooled components and improving the cooling effect of the cooled components.

[0065] In one technical solution of the present invention, the control method further includes: adjusting the opening of the guide vane to adjust the pressure on the second side of the guide vane to a third pressure value.

[0066] In this technical solution, by adjusting the opening of the guide vane, the pressure on the second side of the guide vane is changed to a third pressure value, so that there is a sufficient pressure difference between the condenser and the second side of the guide vane to drive the refrigerant and improve the cooling effect on the cooled components.

[0067] The third pressure value can be obtained by calculation or by testing based on experimental data.

[0068] In one technical solution of the present invention, the control method further includes: detecting the liquid level in the gas-liquid separator; and adjusting the flow rate of the refrigerant in the cooling component according to the liquid level in the gas-liquid separator.

[0069] In this technical solution, the liquid refrigerant is temporarily stored in the gas-liquid separator. When the liquid level in the gas-liquid separator reaches a preset height, its liquid level sensor sends a signal. The system will adjust the fourth control valve, the sixth control valve, the seventh control valve and the eighth control valve according to the temperature of the cooled component. While ensuring the cooling effect, the cooling liquid supply flow rate is reduced to maintain the cooling liquid supply balance, and at the same time consume the liquid refrigerant accumulated in the gas-liquid separator.

[0070] The third aspect of the present invention provides a control device for a cooling component, including a pressure acquisition unit, a temperature acquisition unit and a control unit; the pressure acquisition unit is used to obtain the pressure difference between the evaporator and the condenser; the temperature acquisition unit is used to obtain the temperature value of the cooled component; the control unit is used to control the status of multiple control valves according to the pressure difference and temperature value to guide the refrigerant from the condenser and / or evaporator to the cooling component.

[0071] The control device of the cooling assembly provided by the present invention controls the opening state of multiple valves according to the pressure difference between the evaporator and the condenser and the temperature value of the cooled component, thereby being able to control the refrigerant in the evaporator to enter the cooling component, and also to drive the refrigerant in the condenser to enter the cooling component. Since in the equipment system, the refrigerant is mainly stored in the condenser or the evaporator, the condenser and the evaporator will not lack refrigerant at the same time. Therefore, the refrigerant in the evaporator can be sent to the cooling component through multiple control valves and refrigerant drive components, and the refrigerant in the condenser can also be sent to the cooling component. This can avoid affecting the cooling effect of the cooling component due to less refrigerant in the condenser, thereby improving the cooling effect of the cooled component in the equipment system.

[0072] Since the cooling effect of the cooled components in the equipment system can be improved by setting up a refrigerant drive component and multiple control valves, the stability of the operation of the cooled components can be improved, and the probability of the cooled components being damaged due to overheating can be reduced, thereby extending the service life of the cooled components.

[0073] A fourth aspect of the present invention provides a control device for a cooling assembly, comprising a memory and a processor; the memory being configured to store programs or instructions; and the processor being configured to execute the stored programs or instructions to implement the steps of the cooling assembly control method described in any of the above technical solutions. Therefore, the control device for the cooling assembly includes all the benefits of the cooling assembly control method described in any of the above technical solutions.

[0074] The fifth aspect of the present invention proposes a readable storage medium having a program or instruction stored thereon. When the program or instruction is executed by a processor, the steps of the control method of the cooling component of any of the above-mentioned technical solutions are implemented. Therefore, the readable storage medium includes all the beneficial effects of the control method of the cooling component of any of the above-mentioned technical solutions.

[0075] A sixth aspect of the present invention provides a heat exchanger unit comprising a cooling assembly according to any of the aforementioned technical solutions; and / or a control device according to any of the aforementioned technical solutions; and / or a readable storage medium according to any of the aforementioned technical solutions. Thus, the heat exchanger unit possesses all the beneficial effects of the cooling assembly according to any of the aforementioned technical solutions, the control device according to any of the aforementioned technical solutions, and / or the readable storage medium according to any of the aforementioned technical solutions.

[0076] In one technical solution of the present invention, the heat exchange unit includes a chiller, a heat pump unit or an air conditioner.

[0077] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0078] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0079] Figure 1a A schematic structural diagram of a cooling assembly according to an embodiment of the present invention is shown;

[0080] Figure 1b A partial schematic diagram of a cooling assembly according to one embodiment of the present invention is shown;

[0081] Figure 2 One of the flow charts of a method for controlling a cooling assembly according to an embodiment of the present invention is shown;

[0082] Figure 3 A second flowchart of a method for controlling a cooling assembly according to an embodiment of the present invention is shown;

[0083] Figure 4 A third flowchart of a method for controlling a cooling assembly according to an embodiment of the present invention is shown;

[0084] Figure 5 A fourth flowchart of a method for controlling a cooling assembly according to an embodiment of the present invention is shown;

[0085] Figure 6 A fifth flowchart of a method for controlling a cooling assembly according to an embodiment of the present invention is shown;

[0086] Figure 7 A sixth flowchart of a method for controlling a cooling assembly according to an embodiment of the present invention is shown;

[0087] Figure 8 A block diagram of a control device for a cooling assembly according to an embodiment of the present invention is shown.

[0088] in, Figure 1a and Figure 1b The corresponding relationship between the reference numerals and component names is as follows:

[0089] 102 condenser, 104 evaporator, 106 refrigerant drive assembly, 108 cooling component, 110 first pipeline, 112 second pipeline, 114 first control valve, 116 second control valve, 118 third pipeline, 120 third control valve, 122 gas-liquid separator, 124 fourth pipeline, 126 fourth control valve, 128 compressor, 130 return air port, 132 exhaust port, 134 guide vane, 136 fifth pipeline, 138 fifth control valve, 140 compressor cooler, 142 inverter cooler, 144 oil tank cooler, 146 sixth control valve, 148 seventh control valve, 150 eighth control valve, 152 power economizer, 154 drive pipeline, 156 air intake, 158 contraction. DETAILED DESCRIPTION

[0090] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0091] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0092] Refer to the following Figures 1a to 8 A cooling assembly, a control method for a cooling assembly, a control device for a cooling assembly, a readable storage medium, and a heat exchange unit according to some embodiments of the present invention are described.

[0093] In one embodiment of the present invention, Figure 1a and Figure 1b As shown, a cooling component is provided, including a condenser 102, an evaporator 104, a refrigerant drive component 106, a cooling part 108 and a plurality of control valves; the refrigerant input end of the refrigerant drive component 106 is respectively connected to the condenser 102 and the evaporator 104; the first end of the cooling part 108 is connected to the refrigerant output end of the refrigerant drive component 106; at least one control valve among the plurality of control valves is arranged between the refrigerant drive component 106 and the condenser 102, and at least another control valve other than at least one control valve among the plurality of control valves is arranged between the refrigerant drive component 106 and the evaporator 104; wherein, the refrigerant drive component 106 can guide the refrigerant from the condenser 102 and / or the evaporator 104 to the cooling part 108 according to the status of the plurality of control valves.

[0094] In this embodiment, the refrigerant input end of the refrigerant drive component 106 is connected to the condenser 102 and the evaporator 104 respectively, and the first end of the cooling component 108 is connected to the refrigerant output end of the refrigerant drive component 106, so that the refrigerant drive component 106 can transport the refrigerant in the condenser 102 or the evaporator 104 to the cooling component 108 to achieve cooling of the cooled components in the system.

[0095] At least one of the multiple control valves is arranged between the refrigerant drive component 106 and the condenser 102, and at least another control valve other than at least one of the multiple control valves is arranged between the refrigerant drive component 106 and the evaporator 104, which can control the conduction or disconnection between the cooling drive component and the evaporator 104, and the refrigerant drive component 106 and the condenser 102, so that the refrigerant drive component 106 can drive the refrigerant in the evaporator 104 into the cooling component 108, and can also drive the refrigerant in the condenser 102 into the cooling component 108. Since in the equipment system, the refrigerant is mainly stored in the condenser 102 or the evaporator 104, the condenser 102 and the evaporator 104 will not lack refrigerant at the same time, so the refrigerant in the evaporator 104 can be sent to the cooling component 108 through multiple control valves and the refrigerant drive component 106, and the refrigerant in the condenser 102 can also be sent to the cooling component 108, which can avoid affecting the cooling effect of the cooling component 108 due to less refrigerant in the condenser 102, thereby improving the cooling effect of the cooled components in the equipment system.

[0096] Since the cooling effect of the cooled components in the equipment system can be improved by setting up the refrigerant drive component 106 and multiple control valves, the stability of the operation of the cooled components can be improved, and the probability of the cooled components being damaged due to overheating can be reduced, thereby extending the service life of the cooled components.

[0097] By providing a refrigerant driving component to drive the refrigerant from the condenser 102 into the cooling component 108 , even if the pressure in the condenser 102 is low, it will not affect the refrigerant delivery speed, and the cooling effect of the cooling component 108 can be further improved.

[0098] Specifically, during the operation of the equipment, when the refrigerant driving component 106 drives the refrigerant from the condenser 102 into the cooling component 108, if the temperature of the cooled component continues to be above the temperature threshold, it means that the refrigerant in the condenser 102 is insufficient. The pipeline can be controlled through multiple control valves to control the on-off of the pipeline, and then switch to the refrigerant driving component 106 to drive the refrigerant in the evaporator 104 into the cooling component 108, thereby achieving continuous cooling of the cooled component and avoiding the cooling effect of the cooled component being affected by insufficient refrigerant in the condenser 102.

[0099] This embodiment provides a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0100] like Figure 1a and Figure 1b As shown, the cooling component also includes a first pipeline 110, a second pipeline 112, a first control valve 114 and a second control valve 116; the first end of the first pipeline 110 is connected to the condenser 102, and the second end of the first pipeline 110 is connected to the refrigerant input end of the refrigerant drive component 106; the first end of the second pipeline 112 is connected to the evaporator 104, and the second end of the second pipeline 112 is connected to the refrigerant input end of the refrigerant drive component 106; the first control valve 114 is arranged on the first pipeline 110; the second control valve 116 is arranged on the second pipeline 112.

[0101] In this embodiment, a first end of the first pipeline 110 is in communication with the condenser 102, and a second end of the first pipeline 110 is in communication with a refrigerant input end of the refrigerant drive assembly 106, so that the refrigerant can enter the refrigerant drive assembly 106 from the condenser 102 under the action of the refrigerant drive assembly 106. A first control valve 114 is provided on the first pipeline 110 and can control the connection or disconnection between the refrigerant drive assembly 106 and the condenser 102, thereby achieving control over the first pipeline 110.

[0102] A first end of the second pipeline 112 is connected to the evaporator 104, and a second end of the second pipeline 112 is connected to the refrigerant input end of the refrigerant drive assembly 106, so that the refrigerant can enter the refrigerant drive assembly 106 from the evaporator 104 under the action of the refrigerant drive assembly 106. A second control valve 116 is provided on the second pipeline 112 to control the connection or disconnection between the refrigerant drive assembly 106 and the evaporator 104, thereby achieving control over the second pipeline 112.

[0103] Since the first control valve 114 and the second control valve 116 can control the first pipeline 110 and the second pipeline 112 respectively, the first pipeline 110 and the second pipeline 112 can be disconnected when necessary, thereby preventing the condenser 102 and the evaporator 104 from being directly connected without passing through the refrigeration component, thereby ensuring that the refrigerant in the condenser 102 or the evaporator 104 can smoothly enter the cooling component 108.

[0104] The first end of the first pipeline 110 is connected to the exhaust port of the compressor 128 . The first end of the first pipeline 110 may be connected to the pipeline between the compressor 128 and the condenser 102 .

[0105] The first end of the second pipeline 112 may also be connected to the energy saver 152 .

[0106] This embodiment provides a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0107] like Figure 1a and Figure 1b As shown, the refrigerant drive component 106 includes a drive pipeline 154, and the drive pipeline 154 includes an air inlet 156 and a contraction portion 158; the air inlet 156 is connected to the first pipeline 110; the first end of the contraction portion 158 is connected to the air inlet 156, and the second end of the contraction portion 158 is connected to the cooling component 108, and a liquid inlet is provided on the tube wall of the contraction portion 158, and the liquid inlet is connected to the second pipeline 112; wherein, the inner diameter of the contraction portion 158 is smaller than the inner diameter of the air inlet 156.

[0108] In this embodiment, the refrigerant drive assembly 106 includes a drive line 154, which includes an inlet portion 156 and a contraction portion 158. A first end of the inlet portion 156 is connected to a first end of the contraction portion 158. A second end of the inlet portion 156 is connected to the first line 110, and a second end of the contraction portion 158 is in communication with the cooling component 108. As the refrigerant passes through the drive line 154, the velocity of the refrigerant increases as it flows from the inlet portion 156 to the contraction portion 158, because the inner diameter of the contraction portion 158 is smaller than that of the inlet portion 156. A liquid inlet is provided on the side wall of the contraction portion 158, and the second pipeline 112 is connected to the liquid inlet. When the refrigerant in the driving pipeline 154 passes through the contraction portion 158, a certain negative pressure area will be formed at the liquid inlet, thereby driving the refrigerant in the second pipeline 112 and the evaporator 104 into the cooling component 108, and then utilizing the high-pressure refrigerant in the condenser 102 as power to drive the refrigerant in the evaporator 104 into the cooling component 108, so as to realize cooling of the heating elements in the equipment system.

[0109] Since the refrigerant in the evaporator 104 can be driven to enter the cooling component 108 by the high-pressure refrigerant in the condenser 102, the energy consumption required to drive the refrigerant in the evaporator 104 to move is reduced, thereby improving the energy utilization rate of the cooling component.

[0110] Specifically, a first end of the first pipe 110 is connected to the upper portion of the cooler, that is, to the side of the condenser 102 where the gaseous refrigerant is stored, thereby introducing the gaseous refrigerant into the first pipe 110. A first end of the second pipe 112 is connected to the lower portion of the evaporator 104, that is, to the side of the evaporator 104 where the liquid refrigerant is stored, thereby allowing the liquid refrigerant in the evaporator 104 to enter the second pipe 112. When the liquid refrigerant in the evaporator 104 needs to be sent to the cooling component 108, the first control valve 114 and the second control valve 116 are opened, and the high-temperature and high-pressure refrigerant in the condenser 102 enters the first pipeline 110 under the action of pressure. When passing through the contraction part 158 ​​of the driving pipeline 154, the inner diameter of the contraction part 158 ​​is reduced, and the flow rate of the refrigerant increases, thereby forming a negative pressure area at the liquid inlet on the contraction part 158. Under the action of the pressure difference between the negative pressure area and the evaporator 104, the liquid refrigerant in the evaporator 104 enters the contraction part 158, and then enters the cooling component 108 together with the gaseous refrigerant from the condenser 102, thereby realizing the driving of the liquid refrigerant in the evaporator 104 by the gaseous refrigerant in the condenser 102, reducing the energy consumption required to drive the refrigerant movement in the evaporator 104, and improving the energy utilization rate of the cooling component.

[0111] This embodiment provides a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0112] like Figure 1a and Figure 1b As shown, the cooling assembly further includes a third pipe 118 and a third control valve 120 . The first end of the third pipe 118 is connected to the condenser 102 , and the second end of the third pipe 118 is connected to the cooling component 108 . The third control valve 120 is disposed on the third pipe 118 .

[0113] In this embodiment, the first end of the third pipe 118 is connected to the condenser 102, and the second end of the third pipe 118 is connected to the cooling component 108. When the cooled component needs to be cooled by the refrigerant in the condenser 102, the third control valve 120 can be switched to the open state, thereby allowing the refrigerant in the condenser 102 to directly enter the cooling component 108 under the action of pressure, reducing the energy consumption required to drive the refrigerant in the condenser 102 and improving the energy utilization of the cooling component. When the refrigerant in the evaporator 104 needs to be driven into the cooling component 108, the third control valve 120 can be switched to the closed state, thereby preventing the third control valve from affecting the driving of the refrigerant in the evaporator 104.

[0114] Specifically, the second end of the third pipe 118 is connected to the lower part of the condenser 102, that is, connected to the side of the condenser 102 where the liquid refrigerant is stored, so that the liquid refrigerant in the condenser 102 can directly enter the cooling component 108 to achieve cooling of the cooled component.

[0115] This embodiment provides a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0116] like Figure 1a and Figure 1b As shown, the cooling assembly further includes a gas-liquid separator 122, a fourth pipeline 124, and a fourth control valve 126. The gas-liquid separator is connected to the second end of the cooling component 108. The first end of the fourth pipeline 124 is connected to the liquid storage end of the gas-liquid separator 122, and the second end of the fourth pipeline 124 is connected to the evaporator 104. The fourth control valve 126 is provided on the fourth pipeline 124.

[0117] In this embodiment, the first end of the gas-liquid separator 122 is connected to the second end of the cooling component 108, the first end of the fourth pipeline 124 is connected to the liquid storage end of the gas-liquid separator 122, and the second end of the fourth pipeline 124 is connected to the evaporator 104, so that the refrigerant after passing through the cooling component 108 is separated into gas and liquid after entering the gas-liquid separator 122, and the liquid refrigerant returns to the evaporator 104.

[0118] In addition, the first end of the fourth pipeline 124 is connected to the liquid storage end of the gas-liquid separator 122, and the second end of the fourth pipeline 124 is connected to the evaporator 104, so that the condenser 102 can be connected to the evaporator 104 after passing through the first pipeline 110, the refrigerant driving component, the cooling component 108, the gas-liquid separator 122 and the fourth pipeline 124, and then the pressure difference between the condenser 102 and the evaporator 104 provides power for the gaseous refrigerant or liquid refrigerant in the condenser 102, so that the liquid refrigerant in the condenser 102 can enter the cooling component 108, or the gaseous refrigerant in the condenser 102 drives the liquid refrigerant in the evaporator 104 to enter the cooling component 108, thereby realizing the driving of the refrigerant, reducing the energy consumption required to drive the refrigerant movement in the evaporator 104, and improving the energy utilization rate of the cooling component.

[0119] The fourth control valve 126 is disposed on the fourth pipeline 124 . The fourth control valve 126 can switch between a closed state and an open state according to the need of refrigerant flow, thereby achieving control over the fourth pipeline 124 .

[0120] Specifically, the second end of the fourth pipe 124 is connected to the upper portion of the evaporator 104 , that is, connected to the side of the evaporator 104 storing the gaseous refrigerant.

[0121] The liquid outlet of the gas-liquid separator 122 consumes the liquid refrigerant in a manner of maintaining a cooling and liquid supply balance, and a suction device may also be installed to return the liquid refrigerant to the evaporator 104 .

[0122] This embodiment provides a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0123] like Figure 1a and Figure 1b As shown, the cooling assembly further includes a compressor 128, a fifth pipeline 136, and a fifth control valve 138. The compressor 128 includes a return air port 130, an exhaust port 132, and a guide vane 134. The exhaust port 132 is in communication with the condenser 102. The return air port 130 is located on a first side of the guide vane 134 and is in communication with the evaporator 104. The first end of the fifth pipeline 136 is in communication with the gas storage end of the gas-liquid separator 122, and the second end of the fifth pipeline 136 is in communication with the second side of the guide vane 134. The fifth control valve 138 is disposed on the fifth pipeline 136.

[0124] In this embodiment, compressor 128 includes a return air port 130, an exhaust port 132, and a guide vane 134. Exhaust port 132 is provided at a first end of compressor 128 and communicates with condenser 102 to deliver compressed high-temperature, high-pressure refrigerant to condenser 102. Guide vanes 134 are provided at a second end of compressor 128. A return air port 130 is provided on a first side of guide vanes 134. Return air port 130 communicates with evaporator 104, thereby allowing low-temperature, low-pressure gaseous refrigerant in evaporator 104 to flow back into compressor 128. The cooling assembly also includes a fifth pipeline 136 and a fifth control valve 138. A first end of fifth pipeline 136 communicates with the gas storage end of gas-liquid separator 122, and a second end of fifth pipeline 136 communicates with a second side of guide vanes 134. This allows the refrigerant, after passing through cooling component 108, to undergo gas-liquid separation upon entering gas-liquid separator 122, with the gaseous refrigerant then returning to evaporator 104.

[0125] In addition, the first end of the fifth pipeline 136 is connected to the gas storage end of the gas-liquid separator 122, and the second end of the fifth pipeline 136 is connected to the second side of the guide vane 134, so that the condenser 102 can be connected to the second side of the guide vane 134 after passing through the first pipeline 110, the refrigerant driving component, the cooling component 108, the gas-liquid separator 122 and the fifth pipeline 136. Then, when the pressure difference between the condenser 102 and the evaporator 104 cannot drive the refrigerant to move, the pressure difference between the condenser 102 and the second side of the guide vane 134 is used to provide power for the gaseous refrigerant or liquid refrigerant in the condenser 102, so that the liquid refrigerant in the condenser 102 can enter the cooling component 108, or the gaseous refrigerant in the condenser 102 drives the liquid refrigerant in the evaporator 104 to enter the cooling component 108, thereby realizing the driving of the refrigerant, reducing the energy consumption required to drive the refrigerant movement in the evaporator 104, and improving the energy utilization rate of the cooling component.

[0126] The fifth control valve 138 is provided on the fifth pipeline 136 . The fifth control valve 138 can switch between a closed state and an open state according to the need of the refrigerant flow, thereby realizing control over the fifth pipeline 136 .

[0127] The exhaust port 132 may be connected to the downstream of the guide vane 134 , or to any position of the guide vane 134 in the inlet of the first-stage impeller, or to the inlet position of the first-stage impeller.

[0128] This embodiment provides a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0129] like Figure 1a and Figure 1b As shown, the refrigerant drive assembly 106 includes a drive pump.

[0130] In this embodiment, the refrigerant is driven by a driving pump and is not controlled by the pressure difference between the various components in the cooling assembly, making it more convenient for the cooling assembly to drive the refrigerant.

[0131] This embodiment provides a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0132] like Figure 1a and Figure 1b As shown, the cooling component 108 includes a compressor cooler 140 , an inverter cooler 142 , and / or an oil tank cooler 144 .

[0133] In this embodiment, a compressor cooler 140 is disposed around the motor of the compressor 128 to cool the motor of the compressor 128. An inverter cooler 142 is used to cool the inverter. An oil tank cooler 144 is used to cool the lubricating oil.

[0134] The cooling assembly also includes a sixth control valve 146 , a seventh control valve 148 , and an eighth control valve 150 .

[0135] The sixth control valve 146 is connected in series with the compressor cooler 140. By adjusting the opening of the sixth control valve 146, the flow of refrigerant entering the compressor cooler 140 can be adjusted, thereby adjusting the cooling effect of the compressor cooler 140. The sixth control valve 146 can be switched between an open and closed state to control the compressor cooler 140.

[0136] The seventh control valve 148 is connected in series with the inverter cooler 142. By adjusting the opening of the seventh control valve 148, the flow of refrigerant entering the inverter cooler 142 can be adjusted, thereby adjusting the cooling effect of the inverter cooler 142. The seventh control valve 148 can be switched between open and closed states to control the inverter cooler 142.

[0137] The eighth control valve 150 is connected in series with the fuel tank cooler 144. By adjusting the opening of the eighth control valve 150, the flow of refrigerant entering the fuel tank cooler 144 can be adjusted, thereby adjusting the cooling effect of the fuel tank cooler 144. The eighth control valve 150 can be switched between open and closed states to control the fuel tank cooler 144.

[0138] This embodiment provides a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0139] like Figure 1a and Figure 1b As shown, the cooling assembly further includes a power economizer 152 , a first end of the power economizer 152 communicating with the evaporator 104 , a second end of the power economizer 152 communicating with the condenser 102 , and a third end of the power economizer 152 communicating with the compressor 128 .

[0140] The energy saver 152 can replace the gas-liquid separator 122 to separate the refrigerant flowing out of the cooling component 108 into gas and liquid.

[0141] This embodiment provides a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0142] When the cooled component is cooled by the cooling component 108, the cooling assembly can be controlled as follows:

[0143] If the pressure difference between condenser 102 and evaporator 104 is greater than or equal to a first pressure threshold and there is sufficient liquid refrigerant in condenser 102, third control valve 120 is opened, fourth control valve 126 is opened, first control valve 114 is closed, second control valve 116 is closed, and fifth control valve 138 is closed. The openings of sixth control valve 146, seventh control valve 148, and eighth control valve 150 are controlled based on the temperatures of the cooled component and cooling component 108, thereby adjusting the cooling effect on the cooled component.

[0144] If the pressure difference between the condenser 102 and the evaporator 104 is greater than or equal to the first pressure threshold, and the liquid refrigerant in the condenser 102 is insufficient, the system switches to the refrigerant migration mode.

[0145] In the refrigerant migration mode, the amount of liquid refrigerant in condenser 102 decreases, causing insufficient or no liquid in the cooling pipeline. This opens first control valve 114, second control valve 116, and fourth control valve 126, while third control valve 120 and fifth control valve 138 are closed. In this state, high-pressure, high-temperature gaseous refrigerant is extracted from condenser 102, passes through drive line 154, and extracts low-temperature, low-pressure liquid refrigerant from evaporator 104. After passing through sixth control valve 146, seventh control valve 148, and eighth control valve 150, it becomes a low-temperature, low-pressure gas-liquid mixture that enters gas-liquid separator 122 and then returns to evaporator 104.

[0146] If the pressure difference between the condenser 102 and the evaporator 104 is between the first pressure threshold and the second pressure threshold, and the liquid refrigerant in the condenser 102 is insufficient, the system switches to the small pressure difference refrigerant migration mode.

[0147] In the small pressure difference refrigerant migration mode, the default amount of liquid refrigerant in the condenser 102 is reduced, resulting in insufficient or no liquid in the cooling pipeline. At the same time, the pressure difference from the condenser 102 to the evaporator 104 is lower than the normal pressure difference. The system will gradually close the opening of the guide vane 134 to the first preset value to provide a small amount of guide vane 134 throttling pressure difference to open the first control valve 114, open the second control valve 116, open the fifth control valve 138, close the third control valve 120, and close the fourth control valve 126.

[0148] High-pressure and high-temperature gaseous refrigerant is extracted from the condenser 102, passes through the drive pipeline 154, and extracts low-temperature and low-pressure liquid refrigerant from the evaporator 104. After passing through the sixth control valve 146, the seventh control valve 148 and the eighth control valve 150, it becomes a low-temperature and low-pressure gas-liquid mixture and enters the gas-liquid separator 122. Then the gaseous refrigerant returns to the second side of the guide vane 134, and the liquid refrigerant is temporarily stored in the gas-liquid separator 122. When the liquid level in the gas-liquid separator 122 reaches the preset height, its liquid level sensor sends a signal, and the system will adjust the fourth control valve 126, the sixth control valve 146, the seventh control valve 148 and the eighth control valve 150 respectively according to the temperature of the cooled component. On the premise of ensuring the cooling effect, the cooling liquid supply flow rate is reduced to maintain the cooling liquid supply balance, and at the same time consume the liquid refrigerant accumulated in the gas-liquid separator 122.

[0149] If the pressure difference between the condenser 102 and the evaporator 104 is below a second pressure threshold, the system switches to a drive line 154 failure mode.

[0150] In the failure mode of the drive pipeline 154, the drive pipeline 154 has failed and cannot provide sufficient power to extract the commercial refrigerant from the evaporator 104. The system will gradually close the opening of the guide vane 134 to a second preset value to provide a medium guide vane 134 throttling pressure difference, open the third control valve 120, open the fifth control valve 138, close the first control valve 114, close the second control valve 116, and close the fourth control valve 126.

[0151] In this state, high-pressure and high-temperature liquid refrigerant is extracted from the condenser 102, passes through the sixth control valve 146, the seventh control valve 148 and the eighth control valve 150 and the cooled components, and becomes a low-temperature and low-pressure gas-liquid mixture and enters the gas-liquid separator 122. Then the gaseous refrigerant returns to the second side of the guide vane 134, and the liquid refrigerant is temporarily stored in the gas-liquid separator 122. When the liquid level in the gas-liquid separator 122 reaches a preset height, its liquid level sensor sends a signal, and the system will adjust the fourth control valve 126, the sixth control valve 146, the seventh control valve 148 and the eighth control valve 150 respectively according to the temperature of the cooled components. On the premise of ensuring the cooling effect, the cooling liquid supply flow rate is reduced to maintain the cooling liquid supply balance, and at the same time consume the liquid refrigerant accumulated in the gas-liquid separator 122.

[0152] If the pressure difference between the condenser 102 and the evaporator 104 is below the second pressure threshold, and the system is in the drive line 154 failure mode, and the liquid refrigerant in the condenser 102 is insufficient, the system switches to the drive line 154 failure migration mode.

[0153] In the failure migration mode of the drive pipeline 154, the drive pipeline 154 has failed and cannot provide sufficient power to extract the liquid refrigerant from the evaporator 104, and the amount of liquid refrigerant in the condenser 102 is reduced, resulting in insufficient or no liquid in the cooling pipeline. The system will gradually close the opening of the guide vane 134 to the third preset value to provide a large number of guide vanes 134 throttling pressure differences, open the second control valve 116, open the fifth control valve 138, close the first control valve 114, close the third control valve 120, and close the fourth control valve 126.

[0154] In this state, low-temperature and low-pressure liquid refrigerant is extracted from the evaporator 104, and its power comes from the maximum throttling pressure difference provided by the third preset value of the guide vane 134 and the evaporator 104 pressure. The liquid refrigerant passes through the sixth control valve 146, the seventh control valve 148 and the eighth control valve 150 and the cooled components to become a low-temperature and low-pressure gas-liquid mixture and enters the gas-liquid separator 122. Then the gaseous refrigerant returns to the second side of the guide vane 134, and the liquid refrigerant is temporarily stored in the gas-liquid separator 122. When the liquid level in the gas-liquid separator 122 reaches the preset height, its liquid level sensor sends a signal, and the system will adjust the fourth control valve 126, the sixth control valve 146, the seventh control valve 148 and the eighth control valve 150 respectively according to the temperature of the cooled components. On the premise of ensuring the cooling effect, the cooling liquid supply flow is reduced to maintain the cooling liquid supply balance, and at the same time consume the liquid refrigerant accumulated in the gas-liquid separator 122.

[0155] Specifically, the sixth control valve 146 , the seventh control valve 148 , and the eighth control valve 150 are opened to the maximum, but the temperature of the cooled component still cannot be reduced below the temperature threshold, and the liquid refrigerant in the condenser 102 is insufficient.

[0156] In one embodiment of the present invention, Figure 2 As shown, a control method for a cooling component is provided, comprising:

[0157] Step 202, obtaining the pressure difference between the evaporator and the condenser;

[0158] Step 204, obtaining the temperature value of the cooled component;

[0159] Step 206 : Control the states of multiple control valves according to the pressure difference and the temperature value to guide the refrigerant from the condenser and / or the evaporator to the cooling component.

[0160] In this embodiment, the opening states of multiple valves are controlled based on the pressure difference between the evaporator and the condenser and the temperature of the cooled component, thereby controlling the refrigerant in the evaporator to enter the cooling component and driving the refrigerant in the condenser to enter the cooling component. Since the refrigerant in the equipment system is primarily stored in the condenser or the evaporator, the condenser and the evaporator will not be short of refrigerant at the same time. Therefore, the refrigerant in the evaporator can be delivered to the cooling component through multiple control valves and refrigerant drive components, and the refrigerant in the condenser can also be delivered to the cooling component. This can avoid affecting the cooling effect of the cooling component due to insufficient refrigerant in the condenser, thereby improving the cooling effect on the cooled components in the equipment system.

[0161] Since the cooling effect of the cooled components in the equipment system can be improved by setting up a refrigerant drive component and multiple control valves, the stability of the operation of the cooled components can be improved, and the probability of the cooled components being damaged due to overheating can be reduced, thereby extending the service life of the cooled components.

[0162] This embodiment provides a control method for a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0163] Multiple control valves include a first control valve, a second control valve, a third control valve, a fourth control valve and a fifth control valve. Controlling the multiple control valves to open or close according to the pressure difference and the temperature value includes: based on the pressure difference being greater than or equal to the first pressure threshold and the temperature value being greater than the temperature threshold, controlling the first control valve, the second control valve and the fourth control valve to open, and controlling the third control valve and the fifth control valve to close.

[0164] In this embodiment, if the pressure difference between the condenser and the evaporator is above or equal to the first pressure threshold, and the temperature value is greater than the temperature threshold, that is, when the liquid refrigerant in the condenser is insufficient, the system switches to the refrigerant migration mode. In the refrigerant migration mode, the amount of liquid refrigerant in the condenser is reduced, causing insufficient or no liquid in the cooling pipeline. The first control valve is opened, the second control valve is opened, the fourth control valve is opened, the third control valve is closed, and the fifth control valve is closed. In this state, high-pressure and high-temperature gaseous refrigerant is extracted from the condenser, passes through the drive pipeline, and extracts low-temperature and low-pressure liquid refrigerant from the evaporator. After passing through the sixth control valve, the seventh control valve and the eighth control valve, it becomes a low-temperature and low-pressure gas-liquid mixture and enters the gas-liquid separator, and then returns to the evaporator, thereby cooling the cooled components and improving the cooling effect of the cooled components.

[0165] The first pressure threshold is the pressure difference between the evaporator and the condenser when the cooling system is operating normally.

[0166] The temperature threshold is the maximum temperature that can ensure the normal operation of the cooled component.

[0167] Specifically, if Figure 3 As shown, the control method of the cooling component includes:

[0168] Step 302, obtaining the pressure difference between the evaporator and the condenser;

[0169] Step 304, obtaining the temperature value of the cooled component;

[0170] Step 306 : Based on the pressure difference being greater than or equal to the first pressure threshold and the temperature being greater than the temperature threshold, the first control valve, the second control valve, and the fourth control valve are controlled to be open, and the third control valve and the fifth control valve are controlled to be closed.

[0171] This embodiment provides a control method for a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0172] Multiple control valves include a first control valve, a second control valve, a third control valve, a fourth control valve and a fifth control valve. Controlling the multiple control valves to open or close according to the pressure difference and the temperature value includes: based on the pressure difference being greater than or equal to the first pressure threshold and the temperature value being less than or equal to the temperature threshold, controlling the third control valve and the fourth control valve to open, and controlling the first control valve, the second control valve and the fifth control valve to close.

[0173] In this embodiment, if the pressure difference between the condenser and the evaporator is above or equal to a first pressure threshold and there is sufficient liquid refrigerant in the condenser, the third control valve is opened, the fourth control valve is opened, the first control valve is closed, the second control valve is closed, and the fifth control valve is closed. The openings of the sixth, seventh, and eighth control valves are controlled based on the temperatures of the cooled component and the cooling component, thereby adjusting the cooling effect on the cooled component. Furthermore, the refrigerant is driven by the pressure difference between the condenser and the evaporator, reducing the energy consumption required to drive the refrigerant in the evaporator and improving the energy efficiency of the cooling assembly.

[0174] Specifically, if Figure 4 As shown, the control method of the cooling component includes:

[0175] Step 402, obtaining the pressure difference between the evaporator and the condenser;

[0176] Step 404, obtaining the temperature value of the cooled component;

[0177] Step 406 : Based on the pressure difference being greater than or equal to the first pressure threshold and the temperature being less than or equal to the temperature threshold, the third control valve and the fourth control valve are controlled to be open, and the first control valve, the second control valve, and the fifth control valve are controlled to be closed.

[0178] This embodiment provides a control method for a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0179] Multiple control valves include a first control valve, a second control valve, a third control valve, a fourth control valve and a fifth control valve. Controlling the multiple control valves to open or close according to the pressure difference and the temperature value includes: based on the pressure difference being less than the first pressure threshold, the pressure difference being greater than or equal to the second pressure threshold, and the temperature value being greater than the temperature threshold, controlling the first control valve, the second control valve and the fifth control valve to open, and controlling the third control valve and the fourth control valve to close.

[0180] In this embodiment, if the pressure difference between the condenser and the evaporator is between the first pressure threshold and the second pressure threshold, and the pressure difference is greater than or equal to the second pressure threshold, that is, when the liquid refrigerant in the condenser is insufficient, the system switches to the small pressure difference refrigerant migration mode.

[0181] In the small pressure difference refrigerant migration mode, the default amount of liquid refrigerant in the condenser is reduced, resulting in insufficient or no liquid in the cooling pipeline. At the same time, the pressure difference from the condenser to the evaporator is lower than the normal pressure difference. The system will gradually close the guide vane opening to the first preset value to provide a small amount of guide vane throttling pressure difference to open the first control valve, open the second control valve, open the fifth control valve, close the third control valve, and close the fourth control valve.

[0182] High-pressure and high-temperature gaseous refrigerant is extracted from the condenser, passes through the drive pipeline, and extracts low-temperature and low-pressure liquid refrigerant from the evaporator. After passing through the sixth control valve, the seventh control valve and the eighth control valve, it becomes a low-temperature and low-pressure gas-liquid mixture and enters the gas-liquid separator. Then the gaseous refrigerant returns to the second side of the guide vane, thereby cooling the cooled components and improving the cooling effect of the cooled components.

[0183] The second pressure threshold is the minimum pressure difference required to drive the liquid refrigerant in the evaporator into the cooling component through the driving pipeline.

[0184] Specifically, if Figure 5 As shown, the control method of the cooling component includes:

[0185] Step 502, obtaining the pressure difference between the evaporator and the condenser;

[0186] Step 504, obtaining the temperature value of the cooled component;

[0187] Step 506 , based on the pressure difference being less than the first pressure threshold, the pressure difference being greater than or equal to the second pressure threshold, and the temperature being greater than the temperature threshold, the first control valve, the second control valve, and the fifth control valve are controlled to be open, and the third control valve and the fourth control valve are controlled to be closed.

[0188] This embodiment provides a control method for a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0189] The control method further includes adjusting the opening of the guide vane to adjust the pressure on the second side of the guide vane to a first pressure value.

[0190] In this embodiment, by adjusting the opening of the guide vane, the pressure on the second side of the guide vane is changed to the first pressure value, so that there is a sufficient pressure difference between the condenser and the second side of the guide vane to drive the refrigerant and improve the cooling effect on the cooled components.

[0191] The first pressure value can be obtained by calculation or by testing based on experimental data.

[0192] This embodiment provides a control method for a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0193] Multiple control valves include a first control valve, a second control valve, a third control valve, a fourth control valve and a fifth control valve. Controlling the multiple control valves to open or close according to the pressure difference and the temperature value includes: based on the pressure difference being less than the second pressure threshold and the temperature value being less than or equal to the temperature threshold, controlling the third control valve and the fifth control valve to open, and controlling the first control valve, the second control valve and the fourth control valve to close.

[0194] In this embodiment, if the pressure difference between the condenser and the evaporator is below the second pressure threshold, the pressure difference between the evaporator and the condenser is not sufficient to drive the refrigerant in the condenser and the evaporator into the cooling component through the drive pipeline, and the system switches to the drive pipeline failure mode.

[0195] In drive line failure mode, the drive line has failed and cannot provide sufficient power to extract the refrigerant from the evaporator. The system gradually closes the guide vane opening to a second preset value to provide a medium guide vane throttling pressure differential, opens the third control valve, opens the fifth control valve, closes the first control valve, closes the second control valve, and closes the fourth control valve. In this state, high-pressure, high-temperature liquid refrigerant is extracted from the condenser, passes through the sixth, seventh, and eighth control valves, and the cooled components, and is converted into a low-temperature, low-pressure gas-liquid mixture that enters the gas-liquid separator. The gaseous refrigerant then returns to the second side of the guide vane, cooling the cooled components and improving the cooling effect.

[0196] Specifically, if Figure 6 As shown, the control method of the cooling component includes:

[0197] Step 602, obtaining the pressure difference between the evaporator and the condenser;

[0198] Step 604, obtaining the temperature value of the cooled component;

[0199] Step 606 : Based on the pressure difference being less than the second pressure threshold and the temperature being less than or equal to the temperature threshold, the third control valve and the fifth control valve are controlled to be open, and the first control valve, the second control valve, and the fourth control valve are controlled to be closed.

[0200] This embodiment provides a control method for a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0201] The control method further includes adjusting the opening of the guide vane to adjust the pressure on the second side of the guide vane to a second pressure value.

[0202] In this embodiment, by adjusting the opening of the guide vane, the pressure on the second side of the guide vane is changed to a second pressure value, thereby ensuring a sufficient pressure difference between the condenser and the second side of the guide vane to drive the refrigerant and improve the cooling effect on the cooled components.

[0203] The second pressure value can be obtained by calculation or by testing based on experimental data.

[0204] This embodiment provides a control method for a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0205] Multiple control valves include a first control valve, a second control valve, a third control valve, a fourth control valve and a fifth control valve. Controlling the multiple control valves to open or close according to the pressure difference and the temperature value includes: based on the pressure difference being less than the second pressure threshold and the temperature value being greater than the temperature threshold, controlling the second control valve and the fifth control valve to open, and controlling the first control valve, the third control valve and the fourth control valve to close.

[0206] In this embodiment, if the pressure difference between the condenser and the evaporator is below the second pressure threshold, the system is in the drive line failure mode, and there is insufficient liquid refrigerant in the condenser, the system switches to the drive line failure migration mode.

[0207] In the drive pipeline failure migration mode, the drive pipeline has failed and cannot provide sufficient power to extract the liquid refrigerant from the evaporator, and the amount of liquid refrigerant in the condenser is reduced, causing insufficient or no liquid in the cooling pipeline. The system will gradually close the guide vane opening to the third preset value to provide a large amount of guide vane throttling pressure difference, open the second control valve, open the fifth control valve, close the first control valve, close the third control valve, and close the fourth control valve.

[0208] In this state, low-temperature and low-pressure liquid refrigerant is extracted from the evaporator, and its power comes from the maximum throttling pressure difference provided by the evaporator pressure and the third preset value of the guide vane. The liquid refrigerant passes through the sixth control valve, the seventh control valve, the eighth control valve and the cooled components and becomes a low-temperature and low-pressure gas-liquid mixture and enters the gas-liquid separator. Then the gaseous refrigerant returns to the second side of the guide vane, thereby cooling the cooled components and improving the cooling effect of the cooled components.

[0209] Specifically, if Figure 7 As shown, the control method of the cooling component includes:

[0210] Step 702, obtaining the pressure difference between the evaporator and the condenser;

[0211] Step 704, obtaining the temperature value of the cooled component;

[0212] Step 706 : Based on the pressure difference being less than the second pressure threshold and the temperature being greater than the temperature threshold, the second control valve and the fifth control valve are controlled to be open, and the first control valve, the third control valve, and the fourth control valve are controlled to be closed.

[0213] This embodiment provides a control method for a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0214] The control method further includes: adjusting the opening of the guide vane to adjust the pressure on the second side of the guide vane to a third pressure value.

[0215] In this embodiment, by adjusting the opening of the guide vane, the pressure on the second side of the guide vane is changed to a third pressure value, thereby ensuring a sufficient pressure difference between the condenser and the second side of the guide vane to drive the refrigerant and improve the cooling effect on the cooled components.

[0216] The third pressure value can be obtained by calculation or by testing based on experimental data.

[0217] This embodiment provides a control method for a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0218] The control method further includes: detecting the liquid level in the gas-liquid separator; and adjusting the flow rate of the refrigerant in the cooling component according to the liquid level in the gas-liquid separator.

[0219] In this embodiment, the liquid refrigerant is temporarily stored in the gas-liquid separator. When the liquid level in the gas-liquid separator reaches a preset height, its liquid level sensor sends a signal, and the system will adjust the fourth control valve, the sixth control valve, the seventh control valve and the eighth control valve respectively according to the temperature of the cooled component. On the premise of ensuring the cooling effect, the cooling liquid supply flow rate is reduced to maintain the cooling liquid supply balance, and at the same time consume the liquid refrigerant accumulated in the gas-liquid separator.

[0220] In one embodiment of the present invention, Figure 8 As shown, a control device 800 of a cooling component is provided, including a pressure acquisition unit 802, a temperature acquisition unit 804 and a control unit 806; the pressure acquisition unit 802 is used to obtain the pressure difference between the evaporator and the condenser; the temperature acquisition unit 804 is used to obtain the temperature value of the cooled component; the control unit 806 is used to control the status of multiple control valves according to the pressure difference and the temperature value to guide the refrigerant from the condenser and / or evaporator to the cooling component.

[0221] In this embodiment, the opening states of multiple valves are controlled based on the pressure difference between the evaporator and the condenser and the temperature of the cooled component, thereby controlling the refrigerant in the evaporator to enter the cooling component and driving the refrigerant in the condenser to enter the cooling component. Since the refrigerant in the equipment system is primarily stored in the condenser or the evaporator, the condenser and the evaporator will not be short of refrigerant at the same time. Therefore, the refrigerant in the evaporator can be delivered to the cooling component through multiple control valves and refrigerant drive components, and the refrigerant in the condenser can also be delivered to the cooling component. This can avoid affecting the cooling effect of the cooling component due to insufficient refrigerant in the condenser, thereby improving the cooling effect on the cooled components in the equipment system.

[0222] Since the cooling effect of the cooled components in the equipment system can be improved by setting up a refrigerant drive component and multiple control valves, the stability of the operation of the cooled components can be improved, and the probability of the cooled components being damaged due to overheating can be reduced, thereby extending the service life of the cooled components.

[0223] This embodiment provides a control device for a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0224] The multiple control valves include a first control valve, a second control valve, a third control valve, a fourth control valve and a fifth control valve. The control unit includes a first control sub-unit. The first control sub-unit is used to control the first control valve, the second control valve and the fourth control valve to open, and control the third control valve and the fifth control valve to close based on the pressure difference being greater than or equal to the first pressure threshold and the temperature value being greater than the temperature threshold.

[0225] In this embodiment, if the pressure difference between the condenser and the evaporator is above or equal to the first pressure threshold, and the temperature value is greater than the temperature threshold, that is, when the liquid refrigerant in the condenser is insufficient, the system switches to the refrigerant migration mode. In the refrigerant migration mode, the amount of liquid refrigerant in the condenser is reduced, causing insufficient or no liquid in the cooling pipeline. The first control valve is opened, the second control valve is opened, the fourth control valve is opened, the third control valve is closed, and the fifth control valve is closed. In this state, high-pressure and high-temperature gaseous refrigerant is extracted from the condenser, passes through the drive pipeline, and extracts low-temperature and low-pressure liquid refrigerant from the evaporator. After passing through the sixth control valve, the seventh control valve and the eighth control valve, it becomes a low-temperature and low-pressure gas-liquid mixture and enters the gas-liquid separator, and then returns to the evaporator, thereby cooling the cooled components and improving the cooling effect of the cooled components.

[0226] The first pressure threshold is the pressure difference between the evaporator and the condenser when the cooling system is operating normally.

[0227] The temperature threshold is the maximum temperature that can ensure the normal operation of the cooled component.

[0228] This embodiment provides a control device for a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0229] The multiple control valves include a first control valve, a second control valve, a third control valve, a fourth control valve and a fifth control valve. The control unit includes a second control sub-unit. The second control sub-unit is used to control the third control valve and the fourth control valve to open, and control the first control valve, the second control valve and the fifth control valve to close based on the pressure difference being greater than or equal to the first pressure threshold and the temperature value being less than or equal to the temperature threshold.

[0230] In this embodiment, if the pressure difference between the condenser and the evaporator is above or equal to a first pressure threshold and there is sufficient liquid refrigerant in the condenser, the third control valve is opened, the fourth control valve is opened, the first control valve is closed, the second control valve is closed, and the fifth control valve is closed. The openings of the sixth, seventh, and eighth control valves are controlled based on the temperatures of the cooled component and the cooling component, thereby adjusting the cooling effect on the cooled component. Furthermore, the refrigerant is driven by the pressure difference between the condenser and the evaporator, reducing the energy consumption required to drive the refrigerant in the evaporator and improving the energy efficiency of the cooling assembly.

[0231] This embodiment provides a control device for a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0232] The multiple control valves include a first control valve, a second control valve, a third control valve, a fourth control valve and a fifth control valve. The control unit includes a third control sub-unit. The third control sub-unit is used to control the first control valve, the second control valve and the fifth control valve to open, and control the third control valve and the fourth control valve to close based on the pressure difference being less than the first pressure threshold, the pressure difference being greater than or equal to the second pressure threshold, and the temperature value being greater than the temperature threshold.

[0233] In this embodiment, if the pressure difference between the condenser and the evaporator is between the first pressure threshold and the second pressure threshold, and the pressure difference is greater than or equal to the second pressure threshold, that is, when the liquid refrigerant in the condenser is insufficient, the system switches to the small pressure difference refrigerant migration mode.

[0234] In the small pressure difference refrigerant migration mode, the default amount of liquid refrigerant in the condenser is reduced, resulting in insufficient or no liquid in the cooling pipeline. At the same time, the pressure difference from the condenser to the evaporator is lower than the normal pressure difference. The system will gradually close the guide vane opening to the first preset value to provide a small amount of guide vane throttling pressure difference to open the first control valve, open the second control valve, open the fifth control valve, close the third control valve, and close the fourth control valve.

[0235] High-pressure and high-temperature gaseous refrigerant is extracted from the condenser, passes through the drive pipeline, and extracts low-temperature and low-pressure liquid refrigerant from the evaporator. After passing through the sixth control valve, the seventh control valve and the eighth control valve, it becomes a low-temperature and low-pressure gas-liquid mixture and enters the gas-liquid separator. Then the gaseous refrigerant returns to the second side of the guide vane, thereby cooling the cooled components and improving the cooling effect of the cooled components.

[0236] The second pressure threshold is the minimum pressure difference required to drive the liquid refrigerant in the evaporator into the cooling component through the driving pipeline.

[0237] This embodiment provides a control device for a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0238] The control device further includes a first regulating unit, which is used to regulate the opening of the guide vane and adjust the pressure on the second side of the guide vane to a first pressure value.

[0239] In this embodiment, by adjusting the opening of the guide vane, the pressure on the second side of the guide vane is changed to the first pressure value, so that there is a sufficient pressure difference between the condenser and the second side of the guide vane to drive the refrigerant and improve the cooling effect on the cooled components.

[0240] The first pressure value can be obtained by calculation or by testing based on experimental data.

[0241] This embodiment provides a control device for a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0242] The multiple control valves include a first control valve, a second control valve, a third control valve, a fourth control valve and a fifth control valve, and the control unit includes a fourth control sub-unit; the fourth control sub-unit is used to control the third control valve and the fifth control valve to open, and control the first control valve, the second control valve and the fourth control valve to close based on the pressure difference being less than the second pressure threshold and the temperature value being less than or equal to the temperature threshold.

[0243] In this embodiment, if the pressure difference between the condenser and the evaporator is below the second pressure threshold, the pressure difference between the evaporator and the condenser is not sufficient to drive the refrigerant in the condenser and the evaporator into the cooling component through the drive pipeline, and the system switches to the drive pipeline failure mode.

[0244] In drive line failure mode, the drive line has failed and cannot provide sufficient power to extract the refrigerant from the evaporator. The system gradually closes the guide vane opening to a second preset value to provide a medium guide vane throttling pressure differential, opens the third control valve, opens the fifth control valve, closes the first control valve, closes the second control valve, and closes the fourth control valve. In this state, high-pressure, high-temperature liquid refrigerant is extracted from the condenser, passes through the sixth, seventh, and eighth control valves, and the cooled components, and is converted into a low-temperature, low-pressure gas-liquid mixture that enters the gas-liquid separator. The gaseous refrigerant then returns to the second side of the guide vane, cooling the cooled components and improving the cooling effect.

[0245] This embodiment provides a control device for a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0246] The control device further includes a second regulating unit, which is used to regulate the opening of the guide vane and adjust the pressure on the second side of the guide vane to a second pressure value.

[0247] In this embodiment, by adjusting the opening of the guide vane, the pressure on the second side of the guide vane is changed to a second pressure value, thereby ensuring a sufficient pressure difference between the condenser and the second side of the guide vane to drive the refrigerant and improve the cooling effect on the cooled components.

[0248] The second pressure value can be obtained by calculation or by testing based on experimental data.

[0249] This embodiment provides a control device for a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0250] The multiple control valves include a first control valve, a second control valve, a third control valve, a fourth control valve and a fifth control valve, and the control unit includes a fifth control unit. The fifth control unit is used to control the second control valve and the fifth control valve to open, and control the first control valve, the third control valve and the fourth control valve to close based on the pressure difference being less than the second pressure threshold and the temperature value being greater than the temperature threshold.

[0251] In this embodiment, if the pressure difference between the condenser and the evaporator is below the second pressure threshold, the system is in the drive line failure mode, and there is insufficient liquid refrigerant in the condenser, the system switches to the drive line failure migration mode.

[0252] In the drive pipeline failure migration mode, the drive pipeline has failed and cannot provide sufficient power to extract the liquid refrigerant from the evaporator, and the amount of liquid refrigerant in the condenser is reduced, causing insufficient or no liquid in the cooling pipeline. The system will gradually close the guide vane opening to the third preset value to provide a large amount of guide vane throttling pressure difference, open the second control valve, open the fifth control valve, close the first control valve, close the third control valve, and close the fourth control valve.

[0253] In this state, low-temperature and low-pressure liquid refrigerant is extracted from the evaporator, and its power comes from the maximum throttling pressure difference provided by the evaporator pressure and the third preset value of the guide vane. The liquid refrigerant passes through the sixth control valve, the seventh control valve, the eighth control valve and the cooled components and becomes a low-temperature and low-pressure gas-liquid mixture and enters the gas-liquid separator. Then the gaseous refrigerant returns to the second side of the guide vane, thereby cooling the cooled components and improving the cooling effect of the cooled components.

[0254] This embodiment provides a control device for a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0255] The control device further includes a third regulating unit, which is used to regulate the opening of the guide vane and adjust the pressure on the second side of the guide vane to a third pressure value.

[0256] In this embodiment, by adjusting the opening of the guide vane, the pressure on the second side of the guide vane is changed to a third pressure value, thereby ensuring a sufficient pressure difference between the condenser and the second side of the guide vane to drive the refrigerant and improve the cooling effect on the cooled components.

[0257] The third pressure value can be obtained by calculation or by testing based on experimental data.

[0258] This embodiment provides a control device for a cooling assembly. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0259] The control device also includes a detection unit and a fourth regulating unit; the detection unit is used to detect the liquid level in the gas-liquid separator; the fourth regulating unit is used to regulate the flow of the refrigerant in the cooling component according to the liquid level in the gas-liquid separator.

[0260] In this embodiment, the liquid refrigerant is temporarily stored in the gas-liquid separator. When the liquid level in the gas-liquid separator reaches a preset height, its liquid level sensor sends a signal, and the system will adjust the fourth control valve, the sixth control valve, the seventh control valve and the eighth control valve respectively according to the temperature of the cooled component. On the premise of ensuring the cooling effect, the cooling liquid supply flow rate is reduced to maintain the cooling liquid supply balance, and at the same time consume the liquid refrigerant accumulated in the gas-liquid separator.

[0261] In one embodiment of the present invention, a control device for a cooling assembly is provided, comprising a memory and a processor. The memory is configured to store programs or instructions, and the processor is configured to execute the stored programs or instructions to implement the steps of the cooling assembly control method described in any of the above embodiments. Therefore, the control device for the cooling assembly includes all the benefits of the cooling assembly control method described in any of the above embodiments.

[0262] In one embodiment of the present invention, a readable storage medium is proposed, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the control method of the cooling component of any of the above embodiments are implemented. Therefore, the readable storage medium includes all the beneficial effects of the control method of the cooling component of any of the above embodiments.

[0263] In one embodiment of the present invention, a heat exchanger is provided, comprising a cooling assembly according to any of the aforementioned embodiments; and / or a control device for the cooling assembly according to any of the aforementioned embodiments; and / or a readable storage medium according to any of the aforementioned embodiments. Thus, the heat exchanger possesses all the advantages of the cooling assembly, the control device for the cooling assembly, and / or the readable storage medium according to any of the aforementioned embodiments.

[0264] Heat exchange units include chillers, heat pump units or air conditioners.

[0265] In the claims, specification and drawings of the present invention, the term "plurality" refers to two or more. Unless otherwise expressly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the purpose of more conveniently describing the present invention and making the description process simpler. It is not intended to indicate or imply that the device or element referred to must have the specific orientation described, be constructed and operated in a specific orientation. Therefore, these descriptions cannot be understood as limiting the present invention. The terms "connect", "install", "fix" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection between multiple objects, or a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood based on the specific circumstances of the above data.

[0266] In the claims, specification, and drawings of the present invention, the terms "one embodiment," "some embodiments," "a specific embodiment," and the like mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In the claims, specification, and drawings of the present invention, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0267] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A cooling assembly, characterized in that: include: condenser; evaporator; a refrigerant drive assembly, wherein a refrigerant input end of the refrigerant drive assembly is respectively connected to the condenser and the evaporator; a cooling component, wherein a first end of the cooling component is in communication with a refrigerant output end of the refrigerant driving assembly; a plurality of control valves, at least one of the plurality of control valves being disposed between the refrigerant drive assembly and the condenser, and at least one other control valve other than the at least one control valve being disposed between the refrigerant drive assembly and the evaporator; Wherein, the refrigerant driving assembly is capable of guiding the refrigerant from the condenser and / or the evaporator to the cooling component according to the status of the plurality of control valves; a first pipeline, wherein a first end of the first pipeline is connected to the condenser, and a second end of the first pipeline is connected to a refrigerant input end of the refrigerant drive assembly; a second pipeline, wherein a first end of the second pipeline is connected to the evaporator, and a second end of the second pipeline is connected to a refrigerant input end of the refrigerant drive assembly; a first control valve, the first control valve being arranged on the first pipeline; a second control valve, the second control valve being arranged on the second pipeline; a third pipeline, wherein a first end of the third pipeline is connected to the condenser, and a second end of the third pipeline is connected to the cooling component; a third control valve, the third control valve being arranged on the third pipeline; a gas-liquid separator, the gas-liquid separator being in communication with the second end of the cooling component; a fourth pipeline, wherein a first end of the fourth pipeline is connected to the liquid storage end of the gas-liquid separator, and a second end of the fourth pipeline is connected to the evaporator; a fourth control valve, the fourth control valve being arranged on the fourth pipeline; a fifth pipeline, a first end of the fifth pipeline being in communication with the gas storage end of the gas-liquid separator; a fifth control valve, the fifth control valve being arranged on the fifth pipeline; a compressor, the compressor comprising a return air port, an exhaust port, and a guide vane, the exhaust port being in communication with the condenser, the return air port being located on a first side of the guide vane, and the return air port being in communication with the evaporator; The second end of the fifth pipeline is communicated with the second side of the guide vane.

2. The cooling assembly according to claim 1, wherein: The refrigerant drive assembly includes a drive pipeline, which includes: an air intake portion; the air intake portion being in communication with the first pipeline; a contraction portion, wherein a first end of the contraction portion is connected to the air inlet portion, a second end of the contraction portion is communicated with the cooling component, a liquid inlet is provided on a tube wall of the contraction portion, and the liquid inlet is communicated with the second pipeline; Wherein, the inner diameter of the contraction portion is smaller than the inner diameter of the air inlet portion.

3. The cooling assembly according to claim 1, wherein: The refrigerant driving component includes a driving pump.

4. The cooling assembly according to any one of claims 1 to 3, characterized in that The cooling components include a compressor cooler, an inverter cooler and / or an oil tank cooler.

5. A method for controlling a cooling assembly, used for the cooling assembly according to any one of claims 1 to 4, characterized in that: include: Obtain the pressure difference between the evaporator and the condenser; Obtain the temperature value of the cooled component; According to the pressure difference and the temperature value, the states of the plurality of control valves are controlled to guide the refrigerant from the condenser and / or the evaporator to the cooling component.

6. The control method of the cooling assembly according to claim 5, characterized in that: The plurality of control valves include a first control valve, a second control valve, a third control valve, a fourth control valve, and a fifth control valve, and controlling the plurality of control valves to be opened or closed according to the pressure difference and the temperature value includes: Based on the pressure difference being greater than or equal to a first pressure threshold and the temperature being greater than a temperature threshold, the first control valve, the second control valve, and the fourth control valve are controlled to be open, and the third control valve and the fifth control valve are controlled to be closed.

7. The control method of the cooling assembly according to claim 5, characterized in that: The plurality of control valves include a first control valve, a second control valve, a third control valve, a fourth control valve, and a fifth control valve, and controlling the plurality of control valves to be opened or closed according to the pressure difference and the temperature value includes: Based on the pressure difference being greater than or equal to a first pressure threshold and the temperature being less than or equal to a temperature threshold, the third control valve and the fourth control valve are controlled to be open, and the first control valve, the second control valve, and the fifth control valve are controlled to be closed.

8. The control method of the cooling assembly according to claim 5, characterized in that: The plurality of control valves include a first control valve, a second control valve, a third control valve, a fourth control valve, and a fifth control valve, and controlling the plurality of control valves to be opened or closed according to the pressure difference and the temperature value includes: Based on the fact that the pressure difference is less than the first pressure threshold, the pressure difference is greater than or equal to the second pressure threshold, and the temperature value is greater than the temperature threshold, the first control valve, the second control valve, and the fifth control valve are controlled to open, and the third control valve and the fourth control valve are controlled to close.

9. The control method of the cooling assembly according to claim 8, characterized in that: Also includes: The opening of the guide vane is adjusted to adjust the pressure on the second side of the guide vane to a first pressure value.

10. The control method of the cooling assembly according to claim 5, characterized in that: The plurality of control valves include a first control valve, a second control valve, a third control valve, a fourth control valve, and a fifth control valve, and controlling the plurality of control valves to be opened or closed according to the pressure difference and the temperature value includes: Based on the pressure difference being less than a second pressure threshold and the temperature being less than or equal to a temperature threshold, the third control valve and the fifth control valve are controlled to be open, and the first control valve, the second control valve, and the fourth control valve are controlled to be closed.

11. The control method of the cooling assembly according to claim 10, characterized in that: Also includes: The opening of the guide vane is adjusted to adjust the pressure on the second side of the guide vane to a second pressure value.

12. The control method of the cooling assembly according to claim 5, characterized in that: The plurality of control valves include a first control valve, a second control valve, a third control valve, a fourth control valve, and a fifth control valve, and controlling the plurality of control valves to be opened or closed according to the pressure difference and the temperature value includes: Based on the pressure difference being less than a second pressure threshold and the temperature being greater than a temperature threshold, the second control valve and the fifth control valve are controlled to be open, and the first control valve, the third control valve, and the fourth control valve are controlled to be closed.

13. The control method of the cooling assembly according to claim 12, characterized in that: Also includes: The opening of the guide vane is adjusted to adjust the pressure on the second side of the guide vane to a third pressure value.

14. The control method of the cooling assembly according to any one of claims 5 to 13, characterized in that: Also includes: Detect the liquid level in the gas-liquid separator; The flow rate of the refrigerant in the cooling component is adjusted according to the liquid level in the gas-liquid separator.

15. A control device for a cooling assembly, used for the cooling assembly according to any one of claims 1 to 4, characterized in that: include: A pressure acquisition unit, used to obtain the pressure difference between the evaporator and the condenser; A temperature acquisition unit, used to acquire the temperature value of the cooled component; A control unit is used to control the states of the plurality of control valves according to the pressure difference and the temperature value, so as to guide the refrigerant from the condenser and / or the evaporator to the cooling component.

16. A control device for a cooling assembly, characterized in that: include: a memory configured to store programs or instructions; A processor configured to execute stored programs or instructions to implement the steps of the control method of the cooling assembly according to any one of claims 5 to 14.

17. A readable storage medium having a program or instruction stored thereon, characterized in that: When the program or the instruction is executed by a processor, the steps of the method for controlling a cooling assembly according to any one of claims 5 to 14 are implemented.

18. A heat exchange unit, characterized in that: include: The cooling assembly according to any one of claims 1 to 4; and / or A control device for a cooling assembly according to claim 15 or 16; and / or The readable storage medium of claim 17.

19. The heat exchange unit according to claim 18, characterized in that: The heat exchange unit includes a chiller, a heat pump unit or an air conditioner.

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