Pressure control device and method based on gravity assisted heat pipe and liquid cooling data center thereof

Abstract

The embodiment of the invention provides a pressure control device and method based on a gravity heat pipe and a liquid cooling data center thereof. The device comprises a gravity heat pipe assembly, a liquid cooling box provided with a sensor assembly, a power assembly for gas circulation and a control assembly. One end of the liquid cooling box is connected to one end of the gravity heat pipe assembly through a first pipeline; a first switch assembly is arranged on the first pipeline; the power assembly is connected to the first switch assembly in parallel. The sensor assembly is used for starting the gravity heat pipe assembly to carry out phase-change heat exchange when the first switch assembly is in a conducting state, and monitoring the pressure at different time points in the liquid cooling box; the control assembly is used for controlling the first switch assembly to be in an off state under the condition that the pressure changes; and determining the variable quantity of the volume of the gas in the liquid cooling box based on the pressure at the different time points, and controlling the power assembly to work according to the variable quantity of the volume of the gas in the liquid cooling box so as to adjust the change of the pressure.

Description

Technical Field

[0001] The present application relates to the field of pressure control technology, and in particular to a pressure control device and method based on a gravity heat pipe and a liquid-cooled data center thereof. Background Art

[0002] Gravity heat pipe circulation - heat conversion is unstable, and it is impossible to accurately control the heat exchange and pressure changes of the phase change system; when the pressure change can be controlled, the degree of influence on the filling rate will be reduced. There is currently no effective solution to this problem. Summary of the invention

[0003] In order to solve the existing technical problems, the embodiments of the present application provide a pressure control device and method based on a gravity heat pipe and a liquid-cooled data center thereof.

[0004] To achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:

[0005] The embodiment of the present application provides a pressure control device based on a gravity heat pipe, the device comprising: a gravity heat pipe assembly, a liquid cooling box provided with a sensor assembly, a power assembly for gas circulation, and a control assembly; one end of the liquid cooling box is connected to one end of the gravity heat pipe assembly through a first pipeline; a first switch assembly is provided on the first pipeline; the power assembly is connected in parallel with the first switch assembly; the other end of the liquid cooling box is connected to the other end of the gravity heat pipe assembly through a second pipeline; the control assembly is connected to the gravity heat pipe assembly, the sensor assembly, and the power assembly respectively;

[0006] The sensor assembly is used to start the gravity heat pipe assembly to perform phase change heat transfer when the first switch assembly is in an on state, and monitor the pressure in the liquid cooling box at different time points;

[0007] The control component is used to control the first switch component to be in an off state when the pressure changes; and determine the change in the volume of the gas in the liquid cooling box based on the pressure at different time points, and control the operation of the power component according to the change in the volume of the gas in the liquid cooling box to adjust the pressure change.

[0008] In the above solution, the sensor assembly includes a pressure sensor; the first switch assembly includes an electric ball valve;

[0009] The pressure sensor is used to monitor a first pressure at a first time point and a second pressure at a second time point in the liquid cooling box;

[0010] The control component is also used to control the electric ball valve to be in a disconnected state when the value of the first pressure is different from the value of the second pressure; and to determine the change in the volume of the gas in the liquid cooling box based on the value of the first pressure and the value of the second pressure.

[0011] In the above scheme, the power assembly includes a first gas circulation pump with a constant frequency;

[0012] The control component is also used to obtain the pipe diameter parameters and flow parameters of the first gas circulation pump, determine the flow rate of the first gas circulation pump based on the pipe diameter parameters and the flow parameters; determine the operating time of the first gas circulation pump according to the change in the gas volume in the liquid cooling box and the flow rate of the first gas circulation pump; and control the start and stop of the first gas circulation pump based on the operating time.

[0013] In the above scheme, the power assembly includes a second gas circulation pump with a changed frequency;

[0014] The control component is also used to control the change of the operating frequency of the second gas circulation pump according to the change of the pressure; the degree of change of the pressure is proportional to the degree of change of the frequency.

[0015] In the above scheme, the power assembly includes a third gas circulation pump;

[0016] The control component is also used to input the pressure at different time points and the change in the volume of gas in the liquid cooling box into the monitoring parameters of the third gas circulation pump to control the operating time of the third gas circulation pump.

[0017] In the above scheme, the control component includes a controller; the gravity heat pipe component includes a fan and a gravity heat pipe; the fan is located on the gravity heat pipe; the controller is connected to the fan;

[0018] The controller is also used to control the first switch assembly to be in an on state and the fan to work, so as to start the gravity heat pipe assembly to perform phase change heat transfer.

[0019] The embodiment of the present application provides a pressure control method based on a gravity heat pipe, which is applied to the pressure control device based on a gravity heat pipe described above; the method comprises:

[0020] When the first switch assembly is in the on state, the gravity heat pipe assembly is started to perform phase change heat transfer, and the pressure in the liquid cooling box at different time points is monitored;

[0021] In the case where the pressure changes, controlling the first switch assembly to be in an off state; determining the change in the volume of the gas in the liquid cooling box based on the pressure at different time points;

[0022] The operation of the power component is controlled according to the change in the volume of the gas in the liquid cooling box to adjust the change in the pressure.

[0023] In the above solution, the method further includes:

[0024] The monitoring of the pressure at different time points in the liquid cooling box includes:

[0025] Monitoring a first pressure at a first time point and a second pressure at a second time point in the liquid cooling box;

[0026] Correspondingly, when the pressure changes, controlling the first switch component to be in an off state includes:

[0027] When the value of the first pressure is different from the value of the second pressure, the electric ball valve is controlled to be in an off state;

[0028] Correspondingly, determining the change in the volume of the gas in the liquid cooling box based on the pressure at different time points includes:

[0029] The change in volume of the gas in the liquid cooling box is determined based on the value of the first pressure and the value of the second pressure.

[0030] In the above scheme, the control of the operation of the power assembly according to the change in the volume of the gas in the liquid cooling box includes:

[0031] Obtaining pipe diameter parameters and flow rate parameters of the first gas circulation pump;

[0032] determining a flow rate of the first gas circulation pump based on the pipe diameter parameter and the flow parameter;

[0033] determining the operation time of the first gas circulation pump according to the change in the volume of the gas in the liquid cooling box and the flow rate of the first gas circulation pump;

[0034] The first gas circulation pump is started and stopped controlled based on the operation time.

[0035] In the above solution, the method further includes:

[0036] The change of the operating frequency of the second gas circulation pump is controlled according to the change of the pressure; the degree of change of the pressure is proportional to the degree of change of the frequency.

[0037] In the above scheme, the control of the operation of the power assembly according to the change in the volume of the gas in the liquid cooling box includes:

[0038] The pressure at different time points and the change in the volume of the gas in the liquid cooling box are input into the monitoring parameters of the gas circulation pump to control the running time of the gas circulation pump.

[0039] An embodiment of the present application also provides a liquid-cooled data center, which includes any of the above-mentioned devices.

[0040] The present application also provides a computer program product, including a computer program, which implements any step of the above method when executed by a processor.

[0041] The present application also provides a storage medium on which a computer program is stored, and when the computer program is executed by a processor, any step of the above-mentioned method is implemented.

[0042] The embodiment of the present application provides a pressure control device and method based on a gravity heat pipe and a liquid cooling data center thereof, wherein the device comprises: a gravity heat pipe assembly, a liquid cooling box provided with a sensor assembly, a power assembly for gas circulation and a control assembly; one end of the liquid cooling box is connected to one end of the gravity heat pipe assembly through a first pipeline; a first switch assembly is provided on the first pipeline; the power assembly is connected in parallel with the first switch assembly; the other end of the liquid cooling box is connected to the other end of the gravity heat pipe assembly through a second pipeline; the control assembly is respectively connected to the gravity heat pipe assembly, the sensor assembly and the power assembly; the sensor assembly is used to start the gravity heat pipe assembly for phase change heat transfer when the first switch assembly is in an on state, and monitor the pressure at different time points in the liquid cooling box; the control assembly is used to control the first switch assembly to be in an off state when the pressure changes; and the change in the volume of the gas in the liquid cooling box is determined based on the pressure at different time points, and the power assembly is controlled to work according to the change in the volume of the gas in the liquid cooling box to adjust the change in the pressure. The technical solution of the embodiment of the present application is adopted, a power component for gas circulation is added to the device, a first switch component is set on the first pipeline, and the first switch component is controlled to be in an off state when the sensor component monitors the pressure change at different time points in the liquid cooling box; and the change in the volume of the gas in the liquid cooling box is determined based on the pressure at different time points, and the power component is controlled to work according to the change in the volume of the gas in the liquid cooling box to adjust the change in the pressure. That is, the pressure change in the heat exchange of the phase change system is accurately controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A schematic diagram of a pressure control device based on a gravity heat pipe provided in an embodiment of the present application;

[0044] Figure 2Another schematic diagram of a pressure control device based on a gravity heat pipe provided in an embodiment of the present application;

[0045] Figure 3 A schematic diagram of an application scenario of a pressure control device based on a gravity heat pipe provided in an embodiment of the present application;

[0046] Figure 4 The present invention is a schematic diagram of the implementation process of a pressure control method based on a gravity heat pipe according to an embodiment of the present application. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the specific technical solution of the invention will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0048] In the heat exchange process of gravity heat pipe, low pressure and low boiling point are required, and the low boiling point is conducive to phase change nucleate boiling heat exchange of the coolant.

[0049] Conventional gravity heat pipe heat exchange usually occurs in the evaporation section, insulation section, and condensation section; the heat pipe heat exchange efficiency and energy efficiency are high by utilizing structural characteristics such as pressure difference, gravity difference, and metal sponge in the inner layer of the heat pipe.

[0050] On the one hand, since gravity heat pipes generally have a symmetrical structure, the existence of an inclination angle is more conducive to the gravity reflux of the refrigerant, but it will destroy the symmetry of the internal flow and thus affect the heat transfer characteristics.

[0051] On the other hand, in the limited gravity heat pipe-liquid cooling box, single-phase natural convection, two-phase natural convection, liquid pool nucleate boiling, evaporation and condensation and other processes exist simultaneously. The gravity heat pipe cycle-heat conversion is unstable, and the heat exchange and pressure changes of the phase change system cannot be accurately controlled.

[0052] In practical applications, the filling rate = the volume of the charged refrigerant / the total volume of the gravity heat pipe. During the natural gravity phase change process, if the filling rate is too small, the pipe wall will heat up, the liquid pool will dry up, and the temperature and pressure will fluctuate greatly. If the filling rate is too large, it will easily cause the liquid-cooled phase change medium to enter the insulation section or even the condensation section, resulting in a decrease in the heat exchange effect. When the pressure change can be controlled, the degree to which the filling rate is affected will be reduced.

[0053] Based on this, the embodiment of the present application provides a pressure control device based on a gravity heat pipe. Figure 1 A schematic diagram of a pressure control device based on a gravity heat pipe provided in an embodiment of the present application; Figure 2 Another schematic diagram of a pressure control device based on a gravity heat pipe provided in an embodiment of the present application; Figure 3 A schematic diagram of an application scenario of a pressure control device based on a gravity heat pipe provided in an embodiment of the present application; the following can be combined with Figure 1 , Figure 2 and Figure 3 It is understood that the device 100 includes: a gravity heat pipe assembly 101, a liquid cooling box 103 provided with a sensor assembly 102, a power assembly 104 for gas circulation, and a control assembly 105; one end of the liquid cooling box is connected to one end of the gravity heat pipe assembly through a first pipeline; a first switch assembly 106 is provided on the first pipeline; the power assembly 104 is connected in parallel to the first switch assembly 106; the other end of the liquid cooling box 103 is connected to the other end of the gravity heat pipe assembly 101 through a second pipeline; the control assembly 105 is respectively connected to the gravity heat pipe assembly 101, the sensor assembly 102, and the power assembly 104;

[0054] The sensor assembly 102 is used to start the gravity heat pipe assembly 101 to perform phase change heat transfer when the first switch assembly 106 is in the on state, and monitor the pressure in the liquid cooling box 103 at different time points;

[0055] The control component 105 is used to control the first switch component 106 to be in an off state when the pressure changes; and determine the change in the volume of the gas in the liquid cooling box 103 based on the pressure at different time points, and control the operation of the power component 104 according to the change in the volume of the gas in the liquid cooling box 103 to adjust the pressure change.

[0056] It should be noted that the system in the pressure control device 100 based on gravity heat pipe can be determined according to actual conditions and is not limited here. As an example, the pressure control device 100 based on gravity heat pipe can also be understood as a pressure control device for optimizing a gravity heat pipe phase change liquid cooling box.

[0057] The gravity heat pipe assembly 101 may be any gravity heat pipe assembly, which is not limited here. As an example, the gravity heat pipe assembly 101 may include a fan and a gravity heat pipe. In practical applications, the gravity heat pipe may be referred to as a heat pipe.

[0058] The sensor assembly 102 can be determined according to actual conditions and is not limited here. As an example, the sensor assembly 102 can include a pressure sensor. The symbol of the pressure sensor can be recorded as P.

[0059] The liquid cooling box 103 can be determined according to actual conditions and is not limited here. As an example, the liquid cooling box 103 can be a two-phase immersion tank. In practical applications, the two-phase immersion tank can also be referred to as a phase change liquid cooling tank.

[0060] The power component 104 of the gas circulation can be determined according to actual conditions and is not limited here. As an example, the power component 104 may include a gas circulation pump; for example, the power component 104 may include a first gas circulation pump with a constant frequency, a second gas circulation pump with a variable frequency, and a third gas circulation pump; wherein the first gas circulation pump with a constant frequency may be understood as a fixed-frequency gas circulation pump; the second gas circulation pump with a variable frequency may be understood as a variable-frequency gas circulation pump; and the third gas circulation pump may include a peristaltic pump.

[0061] The control component 105 can be determined according to actual conditions and is not limited here. As an example, the control component 105 can include a controller. In practical applications, the controller can be a centralized procurement controller.

[0062] The first switch component 106 can be determined according to actual conditions and is not limited here. As an example, the first switch component 106 includes an electric ball valve.

[0063] The control component 105 is respectively connected to the gravity heat pipe component 101, the sensor component 102, and the power component 104. The connection can be determined according to the actual situation and is not limited here. As an example, the connection can be a wired connection or a wireless connection; wherein the wired connection can be a wire connection capable of transmitting data; the wireless connection can be a short-range communication technology, such as Bluetooth, Zigbee, etc.; or a long-range communication technology, such as (WiFi, Wireless Fidelity) connection.

[0064] When the first switch assembly 106 is in the on state, starting the gravity heat pipe assembly 101 to perform phase change heat transfer can be understood as turning on the first switch assembly 106 and the gravity heat pipe assembly 101 to perform gravity heat pipe phase change heat transfer. As an example, the first switch assembly 106 can be an electric ball valve; the gravity heat pipe assembly 101 can include a fan and a gravity heat pipe. Turning on the first switch assembly 106 and the gravity heat pipe assembly 101 to perform gravity heat pipe phase change heat transfer can be understood as turning on the electric ball valve, the fan and the gravity heat pipe to perform gravity heat pipe phase change heat transfer.

[0065] Monitor the pressure at different time points in the liquid cooling box 103; wherein the different time points can be determined according to actual conditions and are not limited here. As an example, the different time points can at least include a first time point and a second time point, and monitoring the pressure at different time points in the liquid cooling box 103 can be understood as monitoring the first pressure at the first time point and the second pressure at the second time point in the liquid cooling box 103.

[0066] When the pressure changes, controlling the first switch component 106 to be in an off state can be understood as closing the first switch component 106 when the pressure changes.

[0067] The specific determination process of determining the change in the volume of gas in the liquid cooling box 103 based on the pressure at different time points can be determined according to actual conditions and is not limited here. As an example, the different time points may include at least a first time point and a second time point, and the determination of the change in the volume of gas in the liquid cooling box 103 based on the pressure at different time points may be determining the change in the volume of gas in the liquid cooling box 103 based on the value of the first pressure and the value of the second pressure; the determination of the change in the volume of gas in the liquid cooling box 103 based on the value of the first pressure and the value of the second pressure may be determined by a preset algorithm based on the value of the first pressure and the value of the second pressure; wherein the preset algorithm can be determined according to actual conditions and is not limited here. As an example, the preset algorithm may refer to the following formula (1):

[0068]

[0069] In formula (1), ΔV is the increased gas volume caused by the phase change of the cooling medium, in L;

[0070] P1: collection time point 1, the pressure in the immersion tank, unit kap;

[0071] V1: the volume of gas in the immersion cabinet at the sampling time point 1, in L;

[0072] n: amount of substance, unit: moL;

[0073] R: universal gas constant, 8.31 J / (mol·K);

[0074] r: the heat absorbed by a unit mass of a substance during vaporization, in J / kg;

[0075] c: specific heat capacity of cooling medium, unit: kJ / kg·K;

[0076] P2: collection time point 2, the pressure in the immersion tank, unit kap;

[0077] In formula (1), the initial state quantities except P2 are all known quantities, and when the pressure changes, the change in gas volume during the phase change process can be calculated. That is, the change in gas volume in the liquid cooling box 103 is determined based on the pressure at different time points.

[0078] The power component 104 may include a gas circulation pump; controlling the power component 104 to operate according to the change in the gas volume in the liquid cooling box 103 to adjust the pressure change can be understood as controlling the gas circulation pump to operate according to the change in the gas volume in the liquid cooling box 103 to adjust the pressure change.

[0079] In practical applications, when the first switch component 106 is an electric ball valve, the power component 104 is a gas circulation pump, the sensor component 102 is a pressure sensor, and the gravity heat pipe component 101 may include a fan and a gravity heat pipe, the electric ball valve, the fan and the gravity heat pipe can be opened in the normal mode to perform gravity heat pipe phase change heat transfer. A pressure sensor is used to monitor the pressure at different time points in the liquid cooling box 103, for example, the pressure at the first time point is collected, and the pressure at the second time point is collected; wherein the first time point and the second time point can be determined according to actual conditions, and are not limited here. As an example, the first time point can be recorded as time point ① or time point 1; the second time point can be recorded as time point ② or time point 2. The pressure corresponding to the first time point can be recorded as P1; the pressure corresponding to the second time point can be recorded as P2. When the pressure at the first time point is different from the pressure at the second time point, the electric ball valve is closed, and the change in the volume of the gas in the liquid cooling box 103 is calculated by using the vaporization latent heat calculation equation, the ideal gas equation, and the heat exchange calculation equation, with reference to the above formula (1). In the pressure control mode, the gas circulation pump is controlled to circulate to adjust the pressure change.

[0080] In the embodiment of the present application, a power component for gas circulation is added to the device, and a first switch component is set on the first pipeline. When the sensor component monitors the pressure change at different time points in the liquid cooling box, the control component controls the first switch component to be in an off state; and the change in the volume of the gas in the liquid cooling box is determined based on the pressure at different time points, and the power component is controlled to work according to the change in the volume of the gas in the liquid cooling box to adjust the pressure change. That is, the pressure change in the heat exchange of the phase change system is accurately controlled.

[0081] In an optional embodiment of the present application, the sensor assembly 102 includes a pressure sensor 1021; the first switch assembly 106 includes an electric ball valve 1061;

[0082] The pressure sensor 1021 is used to monitor a first pressure at a first time point and a second pressure at a second time point in the liquid cooling box 103;

[0083] The control component 105 is also used to control the electric ball valve 1061 to be in a disconnected state when the value of the first pressure is different from the value of the second pressure; and to determine the change in the volume of the gas in the liquid cooling box 103 based on the value of the first pressure and the value of the second pressure.

[0084] It should be noted that the sensor assembly 102 includes a pressure sensor 1021; the symbol of the pressure sensor 1021 can be denoted by p.

[0085] Monitor the first pressure at the first time point and the second pressure at the second time point in the liquid cooling box 103; wherein, the first time point and the second time point can be determined according to actual conditions and are not limited here. As an example, the first time point can be recorded as time point ① or time point 1; the second time point can be recorded as time point ② or time point 2. The first pressure can be recorded as P1; the second pressure can be recorded as P2.

[0086] When the value of the first pressure is different from the value of the second pressure, controlling the electric ball valve 1061 to be in a disconnected state can be understood as closing the electric ball valve 1061 when the value of the first pressure is different from the value of the second pressure.

[0087] The specific determination process of determining the change in the volume of the gas in the liquid cooling box 103 based on the value of the first pressure and the value of the second pressure can be determined according to actual conditions, and is not limited here. As an example, the determination of the change in the volume of the gas in the liquid cooling box 103 based on the value of the first pressure and the value of the second pressure can be based on the value of the first pressure and the value of the second pressure. The change in the volume of the gas in the liquid cooling box 103 is determined by a preset algorithm; wherein the preset algorithm can be determined according to actual conditions, and is not limited here. As an example, the preset algorithm can refer to the above formula (1).

[0088] In an optional embodiment of the present application, the power assembly 104 includes a first gas circulation pump with a constant frequency;

[0089] The control component 105 is also used to obtain the pipe diameter parameters and flow parameters of the first gas circulation pump 1041, and determine the flow rate of the first gas circulation pump based on the pipe diameter parameters and the flow rate parameters; determine the operating time of the first gas circulation pump according to the change in the gas volume in the liquid cooling box 103 and the flow rate of the first gas circulation pump 1041; and control the start and stop of the first gas circulation pump based on the operating time.

[0090] It should be noted that the power assembly 104 includes a first gas circulation pump with a constant frequency; the first gas circulation pump with a constant frequency can be understood as a fixed-frequency gas circulation pump.

[0091] The pipe diameter parameter and flow rate parameter of the first gas circulation pump 1041 are obtained, wherein the pipe diameter parameter and flow rate parameter can be determined according to actual conditions and are not limited here.

[0092] Determining the flow rate of the first gas circulation pump based on the pipe diameter parameter and the flow rate parameter can be understood as calculating the flow rate of the first gas circulation pump based on the pipe diameter parameter and the flow rate parameter; in practical applications, a fixed-frequency gas circulation pump with a fixed flow rate and a fixed pipe diameter can be used to calculate the flow rate of the first gas circulation pump.

[0093] Determining the operating time of the first gas circulation pump based on the change in the gas volume in the liquid cooling box 103 and the flow rate of the first gas circulation pump 1041 can be understood as dividing the change in the gas volume in the liquid cooling box 103 by the flow rate of the first gas circulation pump 1041, and then calculating the operating time of the first gas circulation pump.

[0094] Controlling the start and stop of the first gas circulation pump based on the operating time may be understood as controlling the start and stop of the first gas circulation pump so that the first gas circulation pump works within the operating time.

[0095] In this embodiment, in actual application, a fixed frequency gas circulation pump with fixed flow and fixed pipe diameter can be used, and the pressure change can be adjusted by calculating the running time of the gas pump and controlling the start and stop of the gas pump. The control process has low cost.

[0096] In an optional embodiment of the present application, the power assembly 104 includes a second gas circulation pump with a changed frequency;

[0097] The control component 105 is further used to control the change of the operating frequency of the second gas circulation pump according to the change of the pressure; the degree of change of the pressure is proportional to the degree of change of the frequency.

[0098] In this embodiment, the power assembly 104 includes a second gas circulation pump with a variable frequency; the second gas circulation pump with a variable frequency can be understood as a variable frequency gas circulation pump.

[0099] The degree of change of the pressure is proportional to the degree of change of the frequency. It can be understood that if the degree of change of the pressure increases, the degree of change of the frequency increases; if the degree of change of the pressure decreases, the degree of change of the frequency decreases.

[0100] In practical applications, the variable frequency gas circulation pump can be used to control the pressure change by controlling the change in the operating frequency of the gas pump, tracking the operating frequency of the gas pump under the corresponding pressure change, and automatically adjusting the pressure in the liquid cooling cabinet. The process has strong stability and controllability.

[0101] In an optional embodiment of the present application, the power assembly 104 includes a third gas circulation pump;

[0102] The control component 105 is also used to input the pressure at different time points and the change in the gas volume in the liquid cooling box 103 into the monitoring parameters of the third gas circulation pump to control the operating time of the third gas circulation pump.

[0103] It should be noted that the third gas circulation pump can be determined according to actual conditions and is not limited here. As an example, the third gas circulation pump can include a peristaltic pump.

[0104] In the case where the third gas circulation pump may include a peristaltic pump, the pressure at different time points and the change in the volume of gas in the liquid cooling box 103 are input into the monitoring parameters of the third gas circulation pump to control the operating time of the third gas circulation pump. This can be understood as inputting the pressure at different time points and the change in the volume of gas in the liquid cooling box 103 into the monitoring parameters of the peristaltic pump to control the operating time of the peristaltic pump.

[0105] In the embodiment of the present application, in actual applications, the volume change of gas calculated by the pressure change can be input into the peristaltic pump monitoring parameters by t=ΔV / Q, and the ΔV value can be used to automatically control the running time of the peristaltic pump.

[0106] In an optional embodiment of the present application, the control component 105 includes a controller 1051; the gravity heat pipe component 101 includes a fan 1011 and a gravity heat pipe 1012; the fan 1011 is located on the gravity heat pipe 1012; the controller is connected to the fan 1011;

[0107] The controller 1051 is further used to control the first switch assembly 106 to be in an on state and the fan 1011 to work, so as to start the gravity heat pipe assembly 101 to perform phase change heat transfer.

[0108] The control component 105 includes a controller 1051. The controller 1051 can be determined according to actual conditions and is not limited here. As an example, the controller can be a centralized procurement controller.

[0109] The gravity heat pipe assembly 101 includes a fan 1011 and a gravity heat pipe 1012 ; in practical applications, the gravity heat pipe 1012 may be referred to as a heat pipe.

[0110] The controller is connected to the fan 1011; the connection can be determined according to actual conditions and is not limited here. As an example, the connection can be a wired connection or a wireless connection; wherein the wired connection can be a wire connection capable of transmitting data; the wireless connection can be a short-range communication technology, such as Bluetooth, Zigbee, etc.; or a long-range communication technology, such as WiFi, Wireless Fidelity connection.

[0111] The first switch assembly 106 may include an electric ball valve. Controlling the first switch assembly 106 to be in an on state and the fan 1011 to work, so as to start the gravity heat pipe assembly 101 to perform phase change heat transfer, can be understood as opening the electric ball valve, the fan and the gravity heat pipe to perform gravity heat pipe phase change heat transfer.

[0112] For ease of understanding, the pressure control device based on the gravity heat pipe is exemplified here as a pressure control device for optimizing the gravity heat pipe phase change liquid cooling box. Figure 3 Understand. In normal mode, the electric ball valve, fan and gravity heat pipe can be opened to perform phase change heat transfer of the gravity heat pipe, and the pressure sensor can be used to monitor the state temperature and pressure changes; in pressure control mode, closing the electric ball valve can control the gas circulation pump to circulate, and the pressure at time point ① and time point ② can be collected. The above formula (1) can be derived through the vaporization latent heat calculation equation, the ideal gas equation, and the heat exchange calculation equation. When the pressure control is running, the initial state quantities except P2 are all known quantities. When the pressure changes, the P2 value is output, and the change in gas volume during the phase change process can be calculated. The gas circulation There are two ways to cooperate with a pump or a peristaltic pump: a. Use a fixed-frequency gas circulation pump with a fixed flow rate and a fixed pipe diameter, and adjust the pressure change by calculating the running time of the air pump and controlling the start and stop of the air pump (low cost); b. Variable frequency air pump, control the pressure change by controlling the change in the running frequency of the air pump, trace the running frequency of the air pump under the corresponding pressure change, and automatically adjust the pressure in the liquid cooling cabinet (strong stability and controllability); c. The change volume of gas calculated by the pressure change can be input into the peristaltic pump monitoring parameters through t=ΔV / Q, P2, and ΔV values ​​to automatically control the running time of the peristaltic pump.

[0113] The pressure control device based on the gravity heat pipe provided in the embodiment of the present application adds a power component for gas circulation in the device, and sets a first switch component on the first pipeline. When the sensor component monitors the pressure change at different time points in the liquid cooling box, the control component controls the first switch component to be in an off state; and determines the change in the volume of the gas in the liquid cooling box based on the pressure at different time points, and controls the power component to work according to the change in the volume of the gas in the liquid cooling box to adjust the change in the pressure. That is, the pressure change in the heat exchange of the phase change system is accurately controlled.

[0114] Based on the above-mentioned pressure control device 100 based on gravity heat pipe, the present application also provides a pressure control method based on gravity heat pipe, which is applied to the above-mentioned pressure control device 100 based on gravity heat pipe. Figure 4 FIG. 1 is a schematic diagram of a pressure control method based on a gravity heat pipe according to an embodiment of the present application. Figure 4 As shown, the method includes:

[0115] Step S401, when the first switch assembly is in the on state, the gravity heat pipe assembly is started to perform phase change heat transfer, and the pressure in the liquid cooling box at different time points is monitored.

[0116] Step S402, when the pressure changes, control the first switch assembly to be in an off state; and determine the change in the volume of the gas in the liquid cooling box based on the pressure at different time points.

[0117] Step S403, controlling the operation of the power assembly according to the change in the volume of the gas in the liquid cooling box to adjust the change in the pressure.

[0118] It should be noted that the pressure control device 100 based on the gravity heat pipe is described above and will not be described again herein.

[0119] In step S401, starting the gravity heat pipe assembly to perform phase change heat transfer when the first switch assembly is in the on state can be understood as turning on the first switch assembly and the gravity heat pipe assembly to perform phase change heat transfer of the gravity heat pipe. As an example, the first switch assembly can be an electric ball valve; the gravity heat pipe assembly can include a fan and a gravity heat pipe. Turning on the first switch assembly and the gravity heat pipe assembly to perform phase change heat transfer of the gravity heat pipe can be understood as turning on the electric ball valve, the fan and the gravity heat pipe to perform phase change heat transfer of the gravity heat pipe.

[0120] Monitor the pressure at different time points in the liquid cooling box; wherein the different time points can be determined according to actual conditions and are not limited here. As an example, the different time points can at least include a first time point and a second time point, and monitoring the pressure at different time points in the liquid cooling box can be understood as monitoring the first pressure at the first time point and the second pressure at the second time point in the liquid cooling box.

[0121] In step S402, when the pressure changes, controlling the first switch component to be in an off state can be understood as closing the first switch component when the pressure changes.

[0122] The specific determination process in determining the change in the volume of the gas in the liquid cooling box based on the pressure at different time points can be determined according to actual conditions, and is not limited here. As an example, the different time points may include at least a first time point and a second time point, and the determination of the change in the volume of the gas in the liquid cooling box based on the pressure at different time points may be based on the value of the first pressure and the value of the second pressure to determine the change in the volume of the gas in the liquid cooling box; the determination of the change in the volume of the gas in the liquid cooling box based on the value of the first pressure and the value of the second pressure may be based on the value of the first pressure and the value of the second pressure to determine the change in the volume of the gas in the liquid cooling box through a preset algorithm; wherein the preset algorithm can be determined according to actual conditions, and is not limited here. As an example, the preset algorithm may refer to the previous formula (1). In formula (1), the initial state quantities except P2 are all known quantities, and when the pressure changes, the change in the volume of the gas during the phase change process can be calculated. That is, the change in the volume of the gas in the liquid cooling box is determined based on the pressure at different time points.

[0123] In step S403, the power component may include a gas circulation pump; controlling the operation of the power component according to the change in the volume of the gas in the liquid cooling box to adjust the change in the pressure can be understood as controlling the operation of the gas circulation pump according to the change in the volume of the gas in the liquid cooling box to adjust the change in the pressure.

[0124] In an optional embodiment of the present application, monitoring the pressure in the liquid cooling box at different time points includes:

[0125] Monitoring a first pressure at a first time point and a second pressure at a second time point in the liquid cooling box;

[0126] Correspondingly, when the pressure changes, controlling the first switch component to be in an off state includes:

[0127] When the value of the first pressure is different from the value of the second pressure, the electric ball valve is controlled to be in an off state;

[0128] Correspondingly, determining the change in the volume of the gas in the liquid cooling box based on the pressure at different time points includes:

[0129] The change in volume of the gas in the liquid cooling box is determined based on the value of the first pressure and the value of the second pressure.

[0130] It should be noted that the first pressure at the first time point and the second pressure at the second time point in the liquid cooling box are monitored; wherein the first time point and the second time point can be determined according to actual conditions and are not limited here. As an example, the first time point can be recorded as time point ○1 or time point 1; the second time point can be recorded as time point ② or time point 2. The first pressure can be recorded as P1; the second pressure can be recorded as P2.

[0131] When the value of the first pressure is different from the value of the second pressure, controlling the electric ball valve to be in the disconnected state can be understood as closing the electric ball valve when the value of the first pressure is different from the value of the second pressure.

[0132] The specific determination process of determining the change in the volume of the gas in the liquid cooling box based on the value of the first pressure and the value of the second pressure can be determined according to actual conditions and is not limited here. As an example, the determination of the change in the volume of the gas in the liquid cooling box based on the value of the first pressure and the value of the second pressure can be determined by a preset algorithm based on the value of the first pressure and the value of the second pressure; wherein the preset algorithm can be determined according to actual conditions and is not limited here. As an example, the preset algorithm can refer to the previous formula (1).

[0133] In an optional embodiment of the present application, controlling the operation of the power assembly according to the change in the volume of the gas in the liquid cooling box includes:

[0134] Obtaining pipe diameter parameters and flow rate parameters of the first gas circulation pump;

[0135] determining a flow rate of the first gas circulation pump based on the pipe diameter parameter and the flow parameter;

[0136] determining the operation time of the first gas circulation pump according to the change in the volume of the gas in the liquid cooling box and the flow rate of the first gas circulation pump;

[0137] The first gas circulation pump is started and stopped controlled based on the operation time.

[0138] It should be noted that the frequency of the first gas circulation pump remains unchanged. The first gas circulation pump can be understood as a fixed-frequency gas circulation pump.

[0139] The pipe diameter parameter and flow rate parameter of the first gas circulation pump are obtained, wherein the pipe diameter parameter and flow rate parameter can be determined according to actual conditions and are not limited here.

[0140] Determining the flow rate of the first gas circulation pump based on the pipe diameter parameter and the flow rate parameter can be understood as calculating the flow rate of the first gas circulation pump based on the pipe diameter parameter and the flow rate parameter; in practical applications, a fixed-frequency gas circulation pump with a fixed flow rate and a fixed pipe diameter can be used to calculate the flow rate of the first gas circulation pump.

[0141] Determining the operating time of the first gas circulation pump based on the change in the gas volume in the liquid cooling box and the flow rate of the first gas circulation pump can be understood as dividing the change in the gas volume in the liquid cooling box by the flow rate of the first gas circulation pump, and then calculating the operating time of the first gas circulation pump.

[0142] Controlling the start and stop of the first gas circulation pump based on the operating time may be understood as controlling the start and stop of the first gas circulation pump so that the first gas circulation pump works within the operating time.

[0143] In this embodiment, in actual application, a fixed frequency gas circulation pump with fixed flow and fixed pipe diameter can be used, and the pressure change can be adjusted by calculating the running time of the gas pump and controlling the start and stop of the gas pump. The control process has low cost.

[0144] In an optional embodiment of the present application, the method further includes:

[0145] The change of the operating frequency of the second gas circulation pump is controlled according to the change of the pressure; the degree of change of the pressure is proportional to the degree of change of the frequency.

[0146] It should be noted that the frequency of the second gas circulation pump changes, and the second gas circulation pump can be understood as a variable frequency gas circulation pump.

[0147] The degree of change of the pressure is proportional to the degree of change of the frequency. It can be understood that if the degree of change of the pressure increases, the degree of change of the frequency increases; if the degree of change of the pressure decreases, the degree of change of the frequency decreases.

[0148] In practical applications, the variable frequency gas circulation pump can be used to control the pressure change by controlling the change in the operating frequency of the gas pump, tracking the operating frequency of the gas pump under the corresponding pressure change, and automatically adjusting the pressure in the liquid cooling cabinet. The process has strong stability and controllability.

[0149] In an optional embodiment of the present application, controlling the operation of the power assembly according to the change in the volume of the gas in the liquid cooling box includes:

[0150] The pressure at different time points and the change in the volume of gas in the liquid cooling box are input into the monitoring parameters of the third gas circulation pump to control the operating time of the third gas circulation pump.

[0151] It should be noted that the third gas circulation pump can be determined according to actual conditions and is not limited here. As an example, the third gas circulation pump can include a peristaltic pump.

[0152] In the case that the third gas circulation pump may include a peristaltic pump, the pressure at different time points and the change in the volume of gas in the liquid cooling box are input into the monitoring parameters of the third gas circulation pump to control the operating time of the third gas circulation pump. This can be understood as inputting the pressure at different time points and the change in the volume of gas in the liquid cooling box into the monitoring parameters of the peristaltic pump to control the operating time of the peristaltic pump.

[0153] In the embodiment of the present application, in actual applications, the change volume of gas calculated by the pressure change can be input into the peristaltic pump monitoring parameters through t=ΔV / Q, P2, and ΔV values ​​to automatically control the running time of the peristaltic pump.

[0154] The detailed process of the pressure control method based on gravity heat pipe in the present application can be understood in conjunction with the above-mentioned pressure control device based on gravity heat pipe, and will not be repeated here.

[0155] An embodiment of the present application further provides a liquid-cooled data center, which includes any of the above-mentioned devices.

[0156] The detailed process of the liquid-cooled data center of the present application can be understood in conjunction with the aforementioned pressure control device based on gravity heat pipes, and will not be repeated here.

[0157] The embodiment of the present application also provides a computer program product, including a computer program, which implements the steps of the above method embodiment when executed by a processor.

[0158] An embodiment of the present application also provides a computer-readable medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the above-mentioned method embodiment are implemented. The aforementioned storage medium includes: a mobile storage device, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes.

[0159] If the method steps in the above-mentioned system of the embodiment of the present application are implemented in the form of software function modules and sold or used as independent products, they can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application can essentially or in other words, the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product is stored in a storage medium. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a magnetic disk or an optical disk. In this way, the embodiment of the present application is not limited to any specific combination of hardware and software.

[0160] A person skilled in the art can understand that: all or part of the steps of implementing the above method embodiment can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above method embodiment; and the aforementioned storage medium includes: mobile storage devices, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), disks or optical disks, etc. Various media that can store program codes.

[0161] The method disclosed in the above-mentioned embodiment of the present application can be applied to a processor or implemented by a processor. The processor may be an integrated circuit chip with signal processing capabilities. In combination with the steps of the method disclosed in the embodiment of the present application, it can be directly embodied as a hardware decoding processor to be executed, or a combination of hardware and software modules in the decoding processor to be executed. The software module can be located in a storage medium, which is located in a memory, and the processor reads the information in the memory and completes the steps of the aforementioned method in combination with its hardware.

[0162] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A pressure control device based on a gravity heat pipe, characterized in that: The device comprises: a gravity heat pipe assembly, a liquid cooling box provided with a sensor assembly, a power assembly for gas circulation and a control assembly; one end of the liquid cooling box is connected to one end of the gravity heat pipe assembly through a first pipeline; a first switch assembly is provided on the first pipeline; the power assembly is connected in parallel with the first switch assembly; the other end of the liquid cooling box is connected to the other end of the gravity heat pipe assembly through a second pipeline; the control assembly is respectively connected to the gravity heat pipe assembly, the sensor assembly and the power assembly; The sensor assembly is used to start the gravity heat pipe assembly to perform phase change heat transfer when the first switch assembly is in an on state, and monitor the pressure in the liquid cooling box at different time points; The control component is used to control the first switch component to be in an off state when the pressure changes; and determine the change in the volume of the gas in the liquid cooling box based on the pressure at different time points, and control the operation of the power component according to the change in the volume of the gas in the liquid cooling box to adjust the pressure change.

2. The device according to claim 1, characterized in that The sensor assembly includes a pressure sensor; the first switch assembly includes an electric ball valve; The pressure sensor is used to monitor a first pressure at a first time point and a second pressure at a second time point in the liquid cooling box; The control component is further used to control the electric ball valve to be in a disconnected state when the value of the first pressure is different from the value of the second pressure; And determining a change in the volume of the gas in the liquid cooling box based on the value of the first pressure and the value of the second pressure.

3. The device according to claim 1, characterized in that The power assembly includes a first gas circulation pump with a constant frequency; The control component is further used to obtain a pipe diameter parameter and a flow rate parameter of the first gas circulation pump, and determine a flow rate of the first gas circulation pump based on the pipe diameter parameter and the flow rate parameter; and determine an operating time of the first gas circulation pump according to a change in the gas volume in the liquid cooling box and the flow rate of the first gas circulation pump; The first gas circulation pump is started and stopped controlled based on the operation time.

4. The device according to claim 1, characterized in that The power assembly includes a second gas circulation pump with a changed frequency; The control component is also used to control the change of the operating frequency of the second gas circulation pump according to the change of the pressure; the degree of change of the pressure is proportional to the degree of change of the frequency.

5. The device according to claim 1, characterized in that The power assembly includes a third gas circulation pump; The control component is also used to input the pressure at different time points and the change in the volume of gas in the liquid cooling box into the monitoring parameters of the third gas circulation pump to control the operating time of the third gas circulation pump.

6. A pressure control method based on a gravity heat pipe, characterized in that: A pressure control device based on a gravity heat pipe as claimed in any one of claims 1 to 5; the method comprising: When the first switch assembly is in the on state, the gravity heat pipe assembly is started to perform phase change heat transfer, and the pressure in the liquid cooling box at different time points is monitored; In the case where the pressure changes, controlling the first switch assembly to be in an off state; determining the change in the volume of the gas in the liquid cooling box based on the pressure at different time points; The operation of the power component is controlled according to the change in the volume of the gas in the liquid cooling box to adjust the change in the pressure.

7. The method according to claim 6, characterized in that The monitoring of the pressure at different time points in the liquid cooling box includes: Monitoring a first pressure at a first time point and a second pressure at a second time point in the liquid cooling box; Correspondingly, when the pressure changes, controlling the first switch component to be in an off state includes: When the value of the first pressure is different from the value of the second pressure, the electric ball valve is controlled to be in an off state; Correspondingly, determining the change in the volume of the gas in the liquid cooling box based on the pressure at different time points includes: The change in volume of the gas in the liquid cooling box is determined based on the value of the first pressure and the value of the second pressure.

8. The method according to claim 6, characterized in that The controlling the operation of the power assembly according to the change in the volume of the gas in the liquid cooling box comprises: Obtaining pipe diameter parameters and flow rate parameters of the first gas circulation pump; determining a flow rate of the first gas circulation pump based on the pipe diameter parameter and the flow parameter; determining the operation time of the first gas circulation pump according to the change in the volume of the gas in the liquid cooling box and the flow rate of the first gas circulation pump; The first gas circulation pump is started and stopped controlled based on the operation time.

9. The method according to claim 6, characterized in that The method further comprises: The change of the operating frequency of the second gas circulation pump is controlled according to the change of the pressure; the degree of change of the pressure is proportional to the degree of change of the frequency.

10. The method according to claim 6, characterized in that The controlling the operation of the power assembly according to the change in the volume of the gas in the liquid cooling box comprises: The pressure at different time points and the change in the volume of gas in the liquid cooling box are input into the monitoring parameters of the third gas circulation pump to control the operating time of the third gas circulation pump.

11. A liquid cooling data center, characterized in that: The liquid-cooled data center comprises the device described in any one of claims 1-5.

Images