Device and method for testing gas content of liquid cooling system, electronic equipment and medium

Abstract

The invention belongs to the technical field of thermal management, and particularly relates to a device and method for testing the gas content of a liquid cooling system, electronic equipment and a medium. The testing device comprises a pressure tank, the pressure tank is connected with a connecting pipe, an exhaust pipe and an air inlet pipe, and the exhaust pipe is sequentially provided with a first adjusting valve, an exhaust pressure stabilizing component and a gas flow meter; the air inlet pipe is used for being connected with an external air source, a second adjusting valve is arranged on the air inlet pipe, and a second pressure sensor and a temperature sensor are arranged on the pressure tank; the pressure tank is used for being connected with a tested liquid cooling system through a connecting pipe, and a third adjusting valve and a third pressure sensor are arranged on the connecting pipe where the pressure tank is connected with the tested liquid cooling system. Based on the principle that expansion coefficients of liquid and gas are different, gas content testing of the liquid cooling system is rapidly completed in a lossless mode, deep decoupling can be conducted on the testing precision and the individual difference of the internal volume of the cooling system, and better adaptability is achieved compared with a charge volume metering method.

Description

Technical Field

[0001] This invention belongs to the field of thermal management technology, specifically relating to a device, method, electronic equipment, and medium for testing the gas content of a liquid cooling system. Background Technology

[0002] The exhaust performance of a liquid cooling system is crucial for its stable operation. Abnormal gas content within the system can lead to decreased heat dissipation, reduced pump performance, fluctuations in system operating pressure, increased noise, and abnormal fluctuations in tank level. Therefore, accurate measurement of the gas content within a liquid cooling system is of significant practical value.

[0003] Currently, commonly used methods for determining the gas content in a system include coolant charge measurement, visual inspection using sight glasses / transparent pipelines, water tank level observation, pressure monitoring, flow rate detection, noise detection, and high-precision optical / ultrasonic detection.

[0004] The coolant charge measurement method determines the gas content by calculating the difference between the volume of coolant charged into the system and the internal volume of the cooling system. However, the error can be large when there are differences between individual cooling systems.

[0005] The sight glass / transparent pipeline visual inspection method involves designing transparent pipelines / sight glass in the liquid cooling system to visually inspect for air bubbles in the pipeline. This method can intuitively determine whether there is gas in the flowing liquid, but it cannot quantitatively give the gas content value, and it cannot determine the gas in the "flow dead zone".

[0006] The water tank level observation method involves observing the fluctuations in the liquid level in the expansion tank or storage tank when the system starts or stops. If there are significant fluctuations in the liquid level, it indicates that there may be air in the system. This method can qualitatively determine whether there is gas, but it cannot quantitatively give a value for the amount of gas, and there is a certain possibility of misjudgment.

[0007] The pressure monitoring method uses pressure sensors in the liquid cooling system to monitor pressure. The presence of gas will cause pressure fluctuations within the system. If the system pressure fluctuates abnormally, especially when the liquid pump starts or stops, it may indicate the presence of gas in the system. Similar to the previous methods, this method can only qualitatively determine whether gas is present, but cannot quantitatively provide a value for the gas content, and there is a certain possibility of false positives.

[0008] The flow detection method is similar in principle to the pressure monitoring method, which mainly determines whether the system contains gas by monitoring the flow rate. However, this method also cannot quantitatively give the gas content value and has a certain possibility of misjudgment.

[0009] Noise detection methods determine the presence of gas by monitoring the noise in the piping during system operation. When a liquid cooling system contains gas, especially in the pump, it typically generates noise. Abnormal noise can be identified by installing acoustic sensors or by listening. However, this method cannot provide a quantitative value for the gas content and carries a possibility of misjudgment.

[0010] High-precision optical / ultrasonic detection methods accurately detect air bubbles in pipelines using sophisticated optical / ultrasonic instruments. This method can detect the formation and movement of air bubbles in liquids and can quantitatively measure the gas content in pipelines. However, this method has high operational load and stringent instrument requirements, and may not be suitable for testing in complex field conditions, thus lacking adaptability. Summary of the Invention

[0011] This invention provides a device, method, electronic equipment, and medium for testing the gas content in a liquid cooling system. Its purpose is to solve the problem of difficulty in efficiently and accurately measuring the gas content inside a liquid cooling system, so as to ensure the stable operation of the system.

[0012] To achieve the above objectives, a first aspect of the present invention provides a testing device for the gas content of a liquid cooling system. The testing device includes: a pressure tank connected to a connecting pipe, an exhaust pipe, and an inlet pipe; a first regulating valve, an exhaust pressure stabilizing component, and a gas flow meter are sequentially arranged on the exhaust pipe near the pressure tank; the inlet pipe is used to connect to an external gas source, and a second regulating valve is arranged on the inlet pipe; a second pressure sensor and a temperature sensor are arranged on the pressure tank; the pressure tank is connected to the liquid cooling system under test via the connecting pipe, and a third regulating valve and a third pressure sensor are arranged on the connecting pipe connecting the pressure tank and the liquid cooling system under test.

[0013] Furthermore, the testing device also includes a data processing system; the data processing system is electrically connected to the first regulating valve, the second regulating valve, the third regulating valve, the exhaust pressure stabilizing component, the gas flow meter, the second pressure sensor, the third pressure sensor, and the temperature sensor.

[0014] Furthermore, a level gauge is installed inside the pressure tank; the exhaust pressure stabilizing component includes a first pressure sensor and a pressure stabilizing tank, the pressure stabilizing tank being installed on the exhaust pipe, and the first pressure sensor being connected to the pressure stabilizing tank; the level gauge and the first pressure sensor are electrically connected to the data processing system; the first regulating valve, the second regulating valve, and the third regulating valve are all electrically controlled valves.

[0015] To achieve the above objectives, a second aspect of the present invention provides a method for testing the gas content in a liquid cooling system, wherein the testing device described above implements the testing method, and the testing method includes the following steps:

[0016] Step S100: Connect the test device to the liquid cooling system under test through the connecting pipe, and perform the operation of opening the third regulating valve and closing the first regulating valve;

[0017] Step S200: Activate the second regulating valve to inject gas into the pressure tank until the test liquid cooling system reaches the predetermined initial pressure level;

[0018] Step S300: After closing the second regulating valve, wait for the internal pressure of the tested liquid cooling system to reach equilibrium, and record the pressure and temperature parameters at this time.

[0019] Step S400: Gradually adjust the first regulating valve to release gas at a specified rate. When the internal pressure of the liquid cooling system under test drops to the set pressure, close the first regulating valve and record the gas flow data and the gas volume change during the gas release process.

[0020] Step S500: Repeat step S400 several times, maintaining the same pressure reduction rate each time;

[0021] Step S600: Calculate the gas content in the tested liquid cooling system based on the collected pressure, temperature parameters and gas flow data.

[0022] Furthermore, based on the collected pressure, temperature parameters, and gas flow rate data, the formula for calculating the gas content in the tested liquid cooling system is as follows:

[0023]

[0024] Among them, V a P represents the gas volume in the tested liquid cooling system at standard atmospheric pressure; n represents the nth gas content test; i represents the ith gas content test; P std Standard atmospheric pressure; T std The standard temperature is 20℃; ΔV i P represents the change in internal volume of the tested liquid cooling system piping due to pressure changes during the i-th measurement; i0 P represents the initial pressure during the i-th test; i1 T represents the termination pressure during the i-th test; i0 T represents the starting temperature during the i-th test. i1 DL represents the end temperature at the i-th test. i Let represent the liquid level change at the i-th time.

[0025] Furthermore, in step S200, the liquid level in the pressure tank is controlled at a position between 10% and 30% of the liquid level metering range.

[0026] Furthermore, in step S500, the pressure change for each venting is set to 20% of the initial pressure.

[0027] Furthermore, the data processing system is used to perform the following operations in real time during the testing process:

[0028] The rate of change of internal pressure of the tested liquid cooling system is continuously monitored and calculated. When the rate of change of pressure is lower than the preset threshold, it is determined that the pressure of the tested liquid cooling system tends to stabilize, thereby determining that the test start conditions are met.

[0029] Receive external input parameters to set the specific start and end points for each test;

[0030] During the test, the system monitors and records various parameter values ​​in real time and processes the data based on the calculation formula. Various interferences are removed by setting different filtering conditions. When the change of the filtered data is less than the preset range, it is determined that the single test result has reached a stable state and meets the stopping condition.

[0031] Furthermore, the testing method also includes: after completing data acquisition and calculation, disconnecting the testing device from the tested liquid cooling system to end the testing process.

[0032] To achieve the above objectives, a third aspect of the present invention provides an electronic device including a processor and a memory, wherein the processor is configured to execute a computer program stored in the memory to implement the steps of the method for testing the gas content of a liquid cooling system.

[0033] To achieve the above objectives, a fourth aspect of the present invention provides a computer-readable storage medium storing a computer program, which, when executed by a processor, performs the steps of the method for testing the gas content of a liquid cooling system.

[0034] The beneficial effects of this invention are:

[0035] Compared with existing technologies, this invention provides a device, method, electronic equipment, and medium for testing the gas content of a liquid cooling system. Based on the principle that liquids and gases have different expansion coefficients, it uses a specially designed testing device and method to determine the gas content of a liquid cooling system in the completed liquid filling state through a pressure holding test. Specifically, the method performs a pressure holding test in the liquid cooling system after liquid filling. By controlling the gas outflow rate and monitoring changes in system pressure and temperature, the parameters of the gas release process are accurately recorded using a pressure sensor and a gas flow meter. By calculating the relationship between the discharged liquid volume and the system pressure change, the gas content in the system is quantitatively determined. Furthermore, the device integrates an automatic data processing system that can track and analyze various parameters during the testing process in real time. Through comprehensive processing of multiple test results, random interference is effectively filtered out, thereby achieving rapid, non-destructive, and high-precision measurement, avoiding the error problems caused by individual differences in traditional methods. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0037] Figure 1 This is a schematic diagram of a device for testing the gas content of a liquid cooling system, as disclosed in an embodiment of the present invention.

[0038] Reference numerals in the attached figures: 1. Test liquid cooling system; 2. Connecting pipe; 3. First pressure sensor; 4. Gas flow meter; 5. Pressure regulating valve; 6. First regulating valve; 7. Second pressure sensor; 8. Temperature sensor; 9. Second regulating valve; 10. Pressure tank; 11. Liquid level gauge; 12. Third regulating valve; 13. Third pressure sensor; 14. Data processing system. Detailed Implementation

[0039] It's important to note that liquids and gases have different physical properties, one key difference being their compressibility (or coefficient of expansion). Liquids are typically incompressible, meaning their volume remains almost constant with pressure changes. Gases, on the other hand, are highly compressible, and their volume changes significantly with pressure. This characteristic allows the amount of gas in a system to be inferred by pressurizing and releasing the gas.

[0040] like Figure 1 As shown, the present invention provides a testing device for the gas content of a liquid cooling system. The testing device consists of a pressure tank 10 and a data processing system 14. The pressure tank 10 is connected to a connecting pipe 2, an exhaust pipe, and an intake pipe.

[0041] On the exhaust pipe, a first regulating valve 6, an exhaust pressure stabilizing component, and a gas flow meter 4 are arranged in sequence. The exhaust pressure stabilizing component consists of a first pressure sensor 3 and a pressure stabilizing tank 5, and is used to determine the gas pressure at the input end of the gas flow meter 4. The pressure data is measured by the first pressure sensor 3. The gas flow meter 4 is used to measure the volume of gas flowing out of the system. The first regulating valve 6 is used to regulate the speed and volume of gas flowing out of the system.

[0042] The intake pipe is used to connect to an external air source to fill the system with gas, and is equipped with a second regulating valve 9 to control the gas injection.

[0043] The pressure tank 10 serves as the main structure of the test device. It integrates a level gauge 11 for holding and measuring the volume of liquid discharged from the test liquid cooling system 1. The pressure tank 10 is also equipped with a second pressure sensor 7 and a temperature sensor 8. The second pressure sensor 7 is used to measure the real-time pressure in the pressure tank 10, and the temperature sensor 8 is used to measure the temperature of the gas in the system.

[0044] The connecting pipe 2 is used to connect the test device to the test liquid cooling system 1. The connecting pipe 2 is equipped with a third regulating valve 12 and a third pressure sensor 13. The third regulating valve 12 is used to control the connection and disconnection status with the test liquid cooling system 1. The third pressure sensor 13 is used to measure the pressure inside the test liquid cooling system 1.

[0045] All these components, including regulating valves, pressure stabilizing components, flow meters, and various sensors, are electrically connected to the data processing system 14 to achieve automatic data acquisition and processing, and to output gas content test results in real time.

[0046] In another embodiment of the invention, a standard leak hole is used instead. Figure 1 The gas flow meter 4 in the middle counts the volume of air flowing out through a timing and statistical system; in addition, Figure 1 The data processing system 14 can also be left unconfigured, and the results can be calculated offline using calculation methods by manually recording data.

[0047] In this embodiment, the first regulating valve 6, the second regulating valve 9, and the third regulating valve 12 are all electrically controlled valves.

[0048] This implementation involves conducting a pressure holding test on the liquid cooling system after the liquid injection is completed, testing the relationship between the discharged liquid volume and the system pressure, and calculating the gas content in the system by utilizing the significant difference between the compressibility coefficients of liquids and gases.

[0049] The following section will elaborate on this scheme using a method for testing the gas content in a liquid cooling system. This method utilizes the aforementioned testing apparatus and includes the following steps:

[0050] Step S100: Connect the test device to the test liquid cooling system 1 through the connecting pipe 2, and perform the operation of opening the third regulating valve 12 and closing the first regulating valve 6;

[0051] Step S200: Activate the second regulating valve 9 to inject gas into the pressure tank 10 until the test liquid cooling system 1 reaches the predetermined initial pressure level;

[0052] Step S300: After closing the second regulating valve 9, wait for the internal pressure of the tested liquid cooling system 1 to reach equilibrium, and record the pressure and temperature parameters at this time.

[0053] Step S400: Gradually adjust the first regulating valve 6 to release gas at a specified rate. When the internal pressure of the liquid cooling system 1 under test drops to the set pressure, close the first regulating valve 6 and record the gas flow data and the gas volume change during the gas release process.

[0054] Step S500: Repeat step S400 several times, maintaining the same pressure reduction rate each time;

[0055] Step S600: Calculate the gas content in the tested liquid cooling system 1 based on the collected pressure, temperature parameters and gas flow rate data.

[0056] The test procedure for gas content testing is as follows:

[0057] 1) After the test liquid cooling system 1 is filled with liquid, connect the test device to the test liquid cooling system 1 through the connecting pipe 2, and open the third regulating valve 12 and close the first regulating valve 6.

[0058] 2) Inject gas into the system through the second regulating valve 9 to maintain the pressure, controlling the internal pressure of the system to near the specified pressure P0. The recommended value of P0 is the system's pressure maintenance pressure. At the same time, control the liquid level in the pressure tank 10 to be within the range of the level gauge 11, preferably between 10% and 30% of the full range.

[0059] 3) Close the second regulating valve 9. After the pressure is balanced, record the system pressure and temperature at this time. Gradually adjust the first regulating valve 6 to release gas at a certain rate. When the pressure drops to P1, close the first regulating valve 6 and record the amount of gas released during this process (in this step, the liquid level in the pressure tank 10 rises).

[0060] 4) After the pressure is balanced, repeat step 3) (3 to 4 times). The pressure drop value of each release should not be too large or too small, about 20% of P0 is more appropriate.

[0061] 5) Process the measured data to obtain the test results.

[0062] 6) After completing data acquisition and calculation, disconnect the test device from the test liquid cooling system 1 to end the test process.

[0063] The data recorded during the testing process are labeled with the following symbols: Table 1 below:

[0064] Table 1. Definition of Test Data Names

[0065]

[0066]

[0067] The gas content in the test system can be calculated using the following formula:

[0068]

[0069] Among them, V a P represents the gas volume in the tested liquid cooling system at standard atmospheric pressure; n represents the nth gas content test; i represents the ith gas content test; P std Standard atmospheric pressure; T std The standard temperature is 20℃; ΔV i P represents the change in internal volume of the tested liquid cooling system piping due to pressure changes during the i-th measurement; i0 P represents the initial pressure during the i-th test; i1 T represents the termination pressure during the i-th test; i0 T represents the starting temperature during the i-th test. i1 DL represents the end temperature at the i-th test. i Let represent the liquid level change at the i-th time.

[0070] Where, ΔV i Depending on the specific circumstances of the test system, it can be determined in the following ways: a) directly given as 0, applicable to all-metal rigid tubular systems; b) given by empirical value; c) calculated by calculating the expansion coefficient of each component of the test system; d) obtained through experimental testing.

[0071] The data processing system 14 collects all information in real time during the test and performs the following calculations and processing:

[0072] 1. Continuously track and observe the pressure status of the system and calculate the pressure change rate. Determine whether the system pressure is stable based on the pressure change rate and provide a judgment on whether the test start conditions are met. For example, when the pressure change rate is lower than the preset threshold, it is determined that the pressure of the test liquid cooling system 1 tends to be stable, thus determining that the test start conditions are met.

[0073] 2. The start and end points of each test are given externally;

[0074] 3. During the test, the system's various parameter values ​​are tracked and observed in real time, and data processing is performed in real time based on (Equation 1). Different filtering conditions can be set during the processing to remove various interferences generated during the test. The stability of the calculation results can be used to determine whether a single test meets the stopping condition. For example, when the change amplitude of the filtered data is less than the preset range, it is determined that the single test result has reached a stable state and meets the stopping condition.

[0075] 4. Multiple tests can be set up and the results of multiple tests can be processed together to reduce the impact of random interference during the testing process on the results.

[0076] As can be seen from the above process, the test process and results are less related to the internal volume of the tested liquid cooling system 1. This allows for a deep decoupling of test accuracy from individual differences in the internal volume of the cooling system, making it more adaptable than the charge volume measurement method.

[0077] The present invention provides a method for testing the gas content of a liquid cooling system. Based on the principle that liquids and gases have different expansion coefficients, it can quickly and non-destructively test the gas content of the tested liquid cooling system 1. It deeply decouples the test accuracy from individual differences in the internal volume of the cooling system, exhibiting better adaptability than the charge volume measurement method. Furthermore, because the present invention simultaneously designs test hardware, test methods, and data processing methods, it integrates automatic data acquisition and processing functions, enabling rapid and accurate test completion and direct output of test results.

[0078] It is understood that the embodiments described herein can be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described herein, or combinations thereof.

[0079] For software implementation, the techniques described herein can be implemented by units that perform the functions described herein. Software code can be stored in memory and executed by a processor. An electronic device includes a memory and a processor; wherein the memory is used to store programs that support the processor in executing the methods, and the processor is configured to execute the programs stored in the memory.

[0080] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0081] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the above-described apparatus and unit can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0082] In the embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of modules is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple modules or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0083] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0084] If a function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiments of this application, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks. It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0085] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.

Claims

1. A device for testing the gas content in a liquid cooling system, characterized in that, The testing device includes: a pressure tank (10), which is connected to a connecting pipe (2), an exhaust pipe and an inlet pipe. A first regulating valve (6), an exhaust pressure stabilizing component and a gas flow meter (4) are sequentially arranged on the exhaust pipe near the pressure tank (10); the inlet pipe is used to connect to an external gas source, and a second regulating valve (9) is arranged on the inlet pipe; a second pressure sensor (7) and a temperature sensor (8) are arranged on the pressure tank (10); the pressure tank (10) is connected to the test liquid cooling system (1) through the connecting pipe (2), and a third regulating valve (12) and a third pressure sensor (13) are arranged on the connecting pipe (2) connecting the pressure tank (10) and the test liquid cooling system (1).

2. The apparatus for testing the gas content of a liquid cooling system as described in claim 1, characterized in that, The testing device also includes a data processing system (14); the data processing system (14) is electrically connected to the first regulating valve (6), the second regulating valve (9), the third regulating valve (12), the exhaust pressure stabilizing component, the gas flow meter (4), the second pressure sensor (7), the third pressure sensor (13), and the temperature sensor (8).

3. The apparatus for testing the gas content of a liquid cooling system as described in claim 2, characterized in that, The pressure tank (10) is equipped with a level gauge (11); the exhaust pressure stabilizing component includes a first pressure sensor (3) and a pressure stabilizing tank (5), the pressure stabilizing tank (5) is installed on the exhaust pipe, and the first pressure sensor (3) is connected to the pressure stabilizing tank (5); the level gauge (11) and the first pressure sensor (3) are electrically connected to the data processing system (14); the first regulating valve (6), the second regulating valve (9) and the third regulating valve (12) are all electrically controlled valves.

4. A method for testing the gas content in a liquid cooling system, characterized in that, The testing method is implemented by the testing apparatus according to any one of claims 1-3, and the testing method includes the following steps: Step S100: Connect the test device to the test liquid cooling system (1) through the connecting pipe (2), and perform the operation of opening the third regulating valve (12) and closing the first regulating valve (6); Step S200: Activate the second regulating valve (9) to inject gas into the pressure tank (10) until the test liquid cooling system (1) reaches the predetermined initial pressure level; Step S300: After closing the second regulating valve (9), wait for the internal pressure of the tested liquid cooling system (1) to reach equilibrium, and record the pressure and temperature parameters at this time; Step S400: Gradually adjust the first regulating valve (6) to release gas at a specified rate. When the internal pressure of the liquid cooling system (1) under test drops to the set pressure, close the first regulating valve (6) and record the gas flow data and the gas volume change during the gas release process. Step S500: Repeat step S400 several times, maintaining the same pressure reduction rate each time; Step S600: Calculate the gas content in the tested liquid cooling system (1) based on the collected pressure, temperature parameters and gas flow data.

5. The method for testing the gas content in a liquid cooling system as described in claim 4, characterized in that, Based on the collected pressure, temperature parameters, and gas flow rate data, the calculation formula for the gas content in the tested liquid cooling system (1) is as follows: Among them, V a P represents the gas volume in the tested liquid cooling system at standard atmospheric pressure; n represents the nth gas content test; i represents the ith gas content test; P std Standard atmospheric pressure; T std Standard temperature; ΔV i P represents the change in internal volume of the tested liquid cooling system piping due to pressure changes during the i-th measurement; i0 P represents the initial pressure during the i-th test; i1 T represents the termination pressure during the i-th test; i0 T represents the starting temperature during the i-th test. i1 DL represents the end temperature during the i-th test. i Let be the liquid level change at the i-th time.

6. The method for testing the gas content in a liquid cooling system as described in claim 4, characterized in that, In step S200, the liquid level in the pressure tank (10) is controlled between 10% and 30% of the range of the level gauge (11); in step S500, the pressure change for each venting is set to 20% of the initial pressure.

7. The method for testing the gas content in a liquid cooling system as described in claim 5, characterized in that, The data processing system (14) is used to perform the following operations in real time during the test: The rate of change of internal pressure of the test liquid cooling system (1) is continuously monitored and calculated. When the rate of change of pressure is lower than the preset threshold, it is determined that the pressure of the test liquid cooling system (1) tends to be stable, thereby determining that the test start conditions are met. It receives external input parameters to set the specific start and end points for each test; During the testing process, the system's various parameter values ​​are monitored and recorded in real time, and data processing is performed based on calculation formulas; By setting different filtering conditions to remove various interferences, when the change in the filtered data is less than the preset range, it is determined that the single test result has reached a stable state and meets the stopping condition.

8. The method for testing the gas content in a liquid cooling system as described in claim 5, characterized in that, The test method further includes: after completing data acquisition and calculation, disconnecting the test device from the test liquid cooling system (1) and ending the test process.

9. An electronic device, characterized in that, It includes a processor and a memory, the processor being configured to execute a computer program stored in the memory to implement the steps of the method for testing the gas content of a liquid cooling system as described in any one of claims 4 to 8.

10. A computer-readable storage medium storing a computer program thereon, characterized in that, When the computer program is run by the processor, it performs the steps of the method for testing the gas content of a liquid cooling system as described in any one of claims 4-8.

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