Testing Method, Device, Computer Equipment and Storage Medium for Pressure Holding Performance

Abstract

The present invention discloses a method for testing the pressure-holding performance. The method includes: when the first pressure of the target gas source to be filled into the device to be tested is not lower than the target pressure-holding pressure of the device to be tested, controlling the first ball valve to open with a preset opening degree and controlling the first solenoid valve to open; both the first ball valve and the first solenoid valve are installed on the gas charging pipeline for transmitting the target gas source to the device to be tested; monitoring the real-time second pressure of the device to be tested; when the second pressure is equal to the preset pressure threshold, controlling the first solenoid valve to switch between the open state and the closed state according to the preset opening and closing frequency until the second pressure is equal to the target pressure-holding pressure, controlling the first solenoid valve and the first ball valve to be in the closed state; monitoring the pressure data of the device to be tested in the preset pressure-holding duration in real time, and determining the pressure-holding ability of the device to be tested according to the pressure data and the preset rules. Through the above method, rapid voltage stabilization can be achieved, and the efficiency of testing the pressure-holding performance can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of production testing of liquid cooling equipment, and particularly to a testing method, device, computer equipment and storage medium for pressure holding performance. Background Art

[0002] With the acceleration of the technological innovation pace of China's data center industry, the localization level of data centers and servers has been continuously improved, and more and more electronic products have emerged. This has led to an increasing demand for servers, and heat dissipation of servers has become a technical problem to be solved.

[0003] Liquid cooling is a newly emerging cooling method for chip heat dissipation. Generally, a liquid cooling cabinet or a liquid cooling plate and other liquid cooling equipment or components are used to cool the chip. For example, the chip can be placed in a liquid cooling cabinet, and through the pipeline arranged in the liquid cooling cabinet, the coolant can flow in the pipeline to take away the temperature generated by the chip to achieve temperature reduction.

[0004] Usually, when liquid cooling cabinets, liquid cooling plates and other liquid cooling equipment or components leave the factory, it is necessary to test the pressure holding ability of these equipment or components. For example, currently, if we want to ensure the sufficient reliability of the pressure holding test results of liquid cooling cabinets when they leave the factory, manual testing is still required, and the testing efficiency is relatively low. Therefore, there is still a lack of a testing method for pressure holding performance that can ensure the reliability of the pressure holding test results while having a high testing efficiency. Summary of the Invention

[0005] The main purpose of the present invention is to provide a testing method, device, computer equipment and storage medium for pressure holding performance, which can solve the problem in the prior art that there is a lack of a testing method for pressure holding performance that can ensure the reliability of the pressure holding test results while having a high testing efficiency.

[0006] To achieve the above object, in the first aspect of the present invention, a testing method for pressure holding performance is provided, and the method includes:

[0007] When the first pressure of the target gas source to be filled into the device under test is not lower than the target pressure holding pressure of the device under test, control the first ball valve to open with a preset opening degree, and control the first solenoid valve to open; the first ball valve and the first solenoid valve are both installed on the gas filling pipeline for transmitting the target gas source to the device under test;

[0008] Monitor the real-time second pressure of the device under test;

[0009] When the second pressure is equal to the preset pressure threshold, control the first solenoid valve to switch between the open state and the closed state according to the preset opening and closing frequency until the second pressure is equal to the target holding pressure, and then control the first solenoid valve and the first ball valve to be in the closed state. The preset pressure threshold is less than the target holding pressure.

[0010] Monitor the pressure data of the device under test in real time during the preset holding time, and determine the pressure holding ability of the device under test according to the pressure data and the preset rules.

[0011] In a feasible implementation manner, the opening and closing frequency includes the opening duration and the closing duration of the first solenoid valve. The step of controlling the first solenoid valve to switch between the open state and the closed state according to the preset opening and closing frequency until the second pressure is equal to the target holding pressure and then controlling the first solenoid valve and the first ball valve to be in the closed state includes:

[0012] Use the second pressure and the target holding pressure to determine the first pressure difference.

[0013] Use the corresponding relationship between the preset pressure difference and the opening and closing frequency to determine the target opening duration and the target closing duration of the opening and closing frequency at the first pressure difference. The target opening duration is positively correlated with the pressure difference, and the target closing duration is negatively correlated with the pressure difference.

[0014] Control the opening of the first solenoid valve according to the target opening duration, and after the first solenoid valve is opened for the target opening duration, control the first solenoid valve to close.

[0015] After the closing time of the first solenoid valve reaches the target closing duration, return to execute the step of using the second pressure and the target holding pressure to determine the first pressure difference until the second pressure is equal to the target holding pressure, and then control the first solenoid valve and the first ball valve to be in the closed state.

[0016] In a feasible implementation manner, the step of determining the pressure holding ability of the device under test according to the pressure data and the preset rules includes:

[0017] Time according to the holding time, obtain the third pressure of the device under test at the start time of the holding time, and obtain the fourth pressure of the device under test at the end time of the holding time.

[0018] Determine the pressure holding ability of the device under test according to the third pressure, the fourth pressure and the preset rules.

[0019] In a feasible implementation manner, determining the pressure holding capacity of the device under test according to the third pressure, the fourth pressure, and the preset rule includes:

[0020] Obtain the target device type of the device under test;

[0021] Use the third pressure, the fourth pressure, and a preset leak rate algorithm to determine the target leak rate of the device under test;

[0022] Based on the corresponding relationship between the preset device type and the leak rate threshold, determine the target leak rate threshold corresponding to the target device type of the device under test;

[0023] Determine the pressure holding capacity of the device under test according to the target leak rate and the target leak rate threshold.

[0024] In a feasible implementation manner, determining the pressure holding capacity of the device under test according to the target leak rate and the target leak rate threshold includes:

[0025] If the target leak rate is less than or equal to the target leak rate threshold, determine that the pressure holding capacity of the device under test is qualified;

[0026] If the target leak rate is greater than the target leak rate threshold, determine that the pressure holding capacity of the device under test is unqualified.

[0027] In a feasible implementation manner, after determining the pressure holding capacity of the device under test according to the third pressure, the fourth pressure, and the preset rule, it further includes:

[0028] Control the second ball valve to open to discharge the target gas source in the device under test;

[0029] When the discharge of the target gas source is completed, control the second ball valve to close;

[0030] Output the prompt information of the device under test, where the prompt information is used to indicate the pressure holding capacity of the device under test.

[0031] In a feasible implementation manner, the method further includes:

[0032] When the first pressure is lower than the target pressure holding pressure, use a pressure regulating device to adjust the first pressure to the target pressure holding pressure.

[0033] To achieve the above object, a second aspect of the present invention provides a test device for pressure holding performance, and the device includes:

[0034] The first valve control module: When the first pressure of the target gas source to be filled into the device under test is equal to the target pressure holding pressure of the device under test, it controls the first ball valve to open with a preset opening degree and controls the first solenoid valve to open; both the first ball valve and the first solenoid valve are installed on the gas filling pipeline for transmitting the target gas source to the device under test;

[0035] The pressure detection module: It is used to monitor the real-time second pressure of the device under test;

[0036] The second valve control module: When the second pressure is equal to the preset pressure threshold, it controls the first solenoid valve to switch between the open state and the closed state according to the preset opening and closing frequency until the second pressure is equal to the target pressure holding pressure, and then controls the first solenoid valve and the first ball valve to be in the closed state. The preset pressure threshold is less than the target pressure holding pressure;

[0037] The pressure holding capacity evaluation module: It is used to monitor the pressure data of the device under test in the preset pressure holding duration in real time, and determine the pressure holding capacity of the device under test according to the pressure data and the preset rules.

[0038] To achieve the above object, the third aspect of the present invention provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the processor is caused to execute the steps as shown in the first aspect and any feasible implementation manner.

[0039] To achieve the above object, the fourth aspect of the present invention provides a computer device including a memory and a processor. The memory stores a computer program. When the computer program is executed by the processor, the processor is caused to execute the steps as shown in the first aspect and any feasible implementation manner.

[0040] Adopting the embodiment of the present invention has the following beneficial effects:

[0041] The present invention provides a method for testing the pressure holding performance, which includes: when the first pressure of the target gas source to be filled into the device to be tested is not lower than the target pressure holding pressure of the device to be tested, controlling the first ball valve to open with a preset opening degree and controlling the first solenoid valve to open; both the first ball valve and the first solenoid valve are installed on the gas filling pipeline for transmitting the target gas source to the device to be tested; monitoring the real-time second pressure of the device to be tested; when the second pressure is equal to the preset pressure threshold, controlling the first solenoid valve to switch between the open state and the closed state according to the preset opening and closing frequency until the second pressure is equal to the target pressure holding pressure, then controlling the first solenoid valve and the first ball valve to be in the closed state, and the preset pressure threshold is less than the target pressure holding pressure; monitoring the pressure data of the device to be tested in the preset pressure holding duration in real time, and determining the pressure holding ability of the device to be tested according to the pressure data and the preset rules. Through the above method, controlling the first ball valve to open with a preset opening degree can control the filling speed of the target gas source, and by controlling the opening and closing of the first solenoid valve, not only can the pressure be quickly stabilized, but also the pressure instability caused by the delay of the ball valve can be reduced, improving the efficiency of the pressure holding performance test. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0043] Among them:

[0044] Figure 1 It is an application environment diagram of a method for testing the pressure holding performance in an embodiment of the present invention;

[0045] Figure 2 It is a flowchart of a method for testing the pressure holding performance in an embodiment of the present invention;

[0046] Figure 3 It is another application environment diagram of a method for testing the pressure holding performance in an embodiment of the present invention;

[0047] Figure 4 It is another flowchart of a method for testing the pressure holding performance in an embodiment of the present invention;

[0048] Figure 5 It is a structural block diagram of a device for testing the pressure holding performance in an embodiment of the present invention;

[0049] Figure 6 It is a structural block diagram of a computer device in an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0050] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0051] Please refer to Figure 1 , Figure 1 , which is an application environment diagram of a method for testing the pressure holding performance in an embodiment of the present invention. As shown in Figure 1 , the application environment diagram includes a pressure holding performance test system and a device 104 to be tested. The pressure holding performance test system includes a target gas source 101, a first solenoid valve 102, and a first ball valve 103. Among them, the device 104 to be tested includes, but is not limited to, liquid cooling devices or components such as cabinets, liquid cooling plates, liquid cooling pipelines, or nodes. A node is a server, and a cabinet may include multiple nodes. Further, the target gas source 101 is used to provide the gas to be filled. The target gas source 101 can be compressed air or nitrogen, and the pressure of the gas can be any value. The first solenoid valve 102 and the first ball valve 103 are used to control the timing and inflation speed of the target gas source 101 being filled into the device 104 to be tested. Specifically, the first solenoid valve 102 is used to control the on-off of the inflation pipeline and control the flow of the target gas source 101. The first ball valve 103 is used to control the on-off of the inflation pipeline and the inflation speed of the target gas source 101. Further, the device 104 to be tested, the first ball valve 103, the first solenoid valve 102, and the gas supply device providing the target gas source 101 are connected through an inflation pipeline. Exemplarily, the first ball valve 103 can be installed on the inflation pipeline between the device 104 to be tested and the gas supply device, and the first solenoid valve 102 can be installed on the inflation pipeline between the first ball valve 103 and the gas supply device.

[0052] Please refer to Figure 2 , Figure 2 , which is a flowchart of a method for testing the pressure holding performance in an embodiment of the present invention. As shown in Figure 2 , the method includes the following steps:

[0053] 201. When the first pressure of the target gas source to be filled into the device to be tested is not lower than the target pressure holding pressure of the device to be tested, control the first ball valve to open with a preset opening degree and control the first solenoid valve to open; both the first ball valve and the first solenoid valve are installed on the inflation pipeline for transmitting the target gas source to the device to be tested;

[0054] It should be noted that in this embodiment, the execution entity can be a controller. The method for obtaining the pressure-holding information can be that after the user inputs the pressure-holding information, the controller obtains the pressure-holding information, or the pressure-holding information can be obtained through network reception. The test parameters of the device to be tested can be preset, such as the pressure-holding information required for the pressure-holding test. Among them, the pressure-holding information at least includes the target pressure-holding pressure and the pressure-holding duration. When performing the pressure-holding test, the pressure-holding information of the device to be tested can be directly obtained. Furthermore, when testing the pressure-holding ability of the device to be tested by introducing gas into it, the first pressure of the target gas source to be filled into the device to be tested can also be monitored. The first pressure can be obtained by a pressure detection device detecting the actual pressure of the target gas source and transmitting the detected first pressure to the controller, or it can be calculated in real time by the controller by obtaining the state parameters of each component of the system, such as gas flow rate, pipeline volume, etc. Here, the examples are not limited. Among them, the target pressure-holding pressure is the pressure value required in the device to be tested for this pressure-holding test, and the pressure-holding duration is the time length for which the device to be tested needs to maintain the target pressure-holding pressure in this pressure-holding test.

[0055] It should be noted that after obtaining the first pressure and the target pressure-holding pressure, it is necessary to determine whether the pressure of the target gas source meets the requirements, that is, whether the first pressure is not lower than the target pressure-holding pressure. When the first pressure is not lower than the target pressure-holding pressure, it indicates that the pressure of the target gas source at this time meets the requirements, and then the device to be tested can be inflated. If the target gas source is the provider of the origin, if the pressure does not meet the requirements, the device to be tested cannot be inflated. Specifically, when the first pressure of the target gas source to be filled into the device to be tested is not lower than the target pressure-holding pressure of the device to be tested, the first ball valve is controlled to open with a preset opening degree, and the first solenoid valve is controlled to open; both the first ball valve and the first solenoid valve are installed on the gas filling pipeline for transmitting the target gas source to the device to be tested.

[0056] It can be understood that in this embodiment, regardless of which valve, it is in the closed state before the pressure holding test starts. After the pressure holding test starts, the opening or closing of the valve will be controlled according to different test stages as required. Among them, the first ball valve and the first solenoid valve are both installed on the inflation pipeline for transmitting the target gas source to the device under test, and are used to control the flow state of the target gas source on this inflation pipeline. Therefore, when the first pressure is not lower than the target pressure holding pressure, it indicates that the pressure state of the target gas source is up to standard, and inflation can start for the device under test. Then, the first ball valve and the first solenoid valve in the closed state are opened to fill the device under test with the target gas source. In order to ensure the pressure state of the device under test during inflation, it is also necessary to monitor the pressure of the device under test in real time while the target gas source is being filled. Among them, the opening degree of the ball valve is used to control the flow rate of the target gas source to control the filling speed of the target gas source. In this embodiment, the preset opening degree can be 20%, but it can be set correspondingly according to different test requirements and is not limited here.

[0057] 202. Monitor the real-time second pressure of the device under test;

[0058] 203. When the second pressure is equal to the preset pressure threshold, control the first solenoid valve to switch between the open state and the closed state according to the preset opening and closing frequency until the second pressure is equal to the target pressure holding pressure, and then control the first solenoid valve and the first ball valve to be in the closed state. The preset pressure threshold is less than the target pressure holding pressure;

[0059] Furthermore, it is also necessary to monitor the pressure of the device under test in real time during the inflation process, that is, to monitor the real-time second pressure of the device under test. During the real-time monitoring of the second pressure of the device under test while the target gas source is being filled, the second pressure can be compared with the preset pressure threshold to determine the current inflation state. Among them, the preset pressure threshold is less than the target pressure holding pressure. For example, if the target pressure holding pressure is 0.6 MPa, then the preset pressure threshold can be 0.55 MPa. By setting this preset pressure threshold, the real-time inflation state can be monitored to determine whether it is approaching the target pressure value. When the second pressure is equal to the preset pressure threshold, it indicates that the second pressure is approaching the target pressure value and the inflation is about to be completed. Therefore, when the second pressure is equal to the preset pressure threshold, control the first solenoid valve to switch between the open state and the closed state according to the preset opening and closing frequency until the second pressure is equal to the target pressure holding pressure, and then control the first solenoid valve and the first ball valve to be in the closed state. That is, when the inflation is about to be completed, the filling of the target gas source is controlled by switching the on-off state of the first solenoid valve.

[0060] It should be noted that since the ball valve has a certain delay, when controlling the filling of the target gas source through the ball valve, it is possible that due to the delay, the pressure in the device to be tested cannot be equal to the target holding pressure. If the ball valve is closed when the pressure is close to the target holding pressure to avoid the delay, the actual pressure in the device to be tested may be smaller than the target holding pressure. If the ball valve is closed when the pressure is equal to the target holding pressure, it will cause a delay of several seconds, and the gas source is still filling, which may make the actual pressure in the device to be tested larger than the target holding pressure, and it is impossible to accurately keep the actual pressure in the device to be tested constant at the target holding pressure. Due to the delay of the ball valve, the time for pressure stabilization will also be prolonged during the frequent opening and closing process, reducing the efficiency of the pressure holding test. Therefore, in this embodiment, a solenoid valve is configured. The solenoid valve can be instantaneously opened and closed without delay. Specifically, during inflation, the first ball valve and the first solenoid valve are opened to conduct the inflation pipeline, so that the target gas source can be filled into the device to be tested, and the first ball valve is opened with a preset opening degree to control the flow rate of the target gas source. When the inflation is about to end, the first solenoid valve is controlled to switch between the open state and the closed state according to a preset opening and closing frequency until the second pressure is equal to the target holding pressure, that is, when the inflation is completed, the first solenoid valve and the first ball valve are controlled to be in the closed state. It can be understood that since there is no delay in the opening and closing of the solenoid valve, therefore, when shutting off, not only can the actual pressure in the device to be tested be quickly stabilized at the target holding pressure, but also the accuracy of stabilizing the actual pressure at the target holding pressure can be improved by frequently opening and closing the solenoid valve.

[0061] 204. Real-time monitor the pressure data of the device to be tested within a preset pressure holding duration, and determine the pressure holding ability of the device to be tested according to the pressure data and a preset rule

[0062] Among them, after the inflation is completed (after controlling the first solenoid valve and the first ball valve to be in the closed state), the determination of the pressure holding ability is carried out. By real-time monitoring the pressure data of the device to be tested within the pressure holding duration, the pressure holding ability of the device to be tested is determined according to the pressure data and a preset rule. Among them, the pressure holding duration can be set according to actual needs and will not be limited again. It can be understood that the pressure data within the pressure holding duration can reflect the pressure change of the device to be tested during the pressure holding period, and thus can evaluate the pressure holding ability. The pressure holding ability is used to reflect the airtightness of the device to be tested. The preset rule is used as the basis for judging the pressure holding ability.

[0063] The present invention provides a method for testing the pressure holding performance, which includes: when the first pressure of the target gas source to be filled into the device under test is not lower than the target pressure holding pressure of the device under test, controlling the first ball valve to open with a preset opening degree and controlling the first solenoid valve to open; both the first ball valve and the first solenoid valve are installed on the gas filling pipeline for transmitting the target gas source to the device under test; monitoring the real-time second pressure of the device under test; when the second pressure is equal to the preset pressure threshold, controlling the first solenoid valve to switch between the open state and the closed state according to the preset opening and closing frequency until the second pressure is equal to the target pressure holding pressure, then controlling the first solenoid valve and the first ball valve to be in the closed state, and the preset pressure threshold is less than the target pressure holding pressure; monitoring the pressure data of the device under test in the preset pressure holding duration in real time, and determining the pressure holding ability of the device under test according to the pressure data and the preset rules. Through the above method, controlling the first ball valve to open with a preset opening degree can control the filling speed of the target gas source, and by controlling the opening and closing of the first solenoid valve, not only can the pressure be stabilized quickly, but also the pressure instability caused by the delay of the ball valve can be reduced, improving the efficiency of the pressure holding performance test.

[0064] Please refer to Figure 3 , Figure 3 which is another application environment diagram of a method for testing the pressure holding performance in an embodiment of the present invention. As Figure 3 shown, the application environment diagram includes a pressure holding performance test system and a device under test 305. The pressure holding performance test system includes a target gas source 301, a pressure regulating device 302, a first solenoid valve 303, a first ball valve 304, and a second ball valve 306.

[0065] It should be noted that the specific contents of the target gas source 301, the first solenoid valve 303, the first ball valve 304, and the device under test 305 are similar to those of the target gas source 101, the first solenoid valve 102, the first ball valve 103, and the device under test 104 shown in the foregoing Figure 1 For the sake of avoiding repetition, the details are not elaborated here. Specifically, reference can be made to the contents of the target gas source 101, the first solenoid valve 102, the first ball valve 103, and the device under test 104 shown in the foregoing Figure 1 shown.

[0066] Furthermore, the pressure regulating device 302 is installed on the gas filling pipeline, and the pressure regulating device 302 is arranged between the first solenoid valve 303 and the target gas source 301 for regulating the pressure of the target gas source, and can convert the target gas source with any pressure value into the target pressure holding pressure. The second ball valve 306 is installed on the exhaust pipeline, and the second ball valve 306 is used to control the on-off of the exhaust pipeline to control the discharge of the target gas source filled into the device under test.

[0067] Please refer to Figure 4 , Figure 4Another flowchart of a method for testing the pressure holding performance in an embodiment of the present invention is as follows. As Figure 4 shown, the method includes the following steps:

[0068] 401. When the first pressure of the target gas source to be filled into the device under test is not lower than the target pressure holding pressure of the device under test, control the first ball valve to open with a preset opening degree and control the first solenoid valve to open; both the first ball valve and the first solenoid valve are installed on the gas filling pipeline for transmitting the target gas source to the device under test;

[0069] 402. Monitor the real-time second pressure of the device under test;

[0070] It should be noted that the content of steps 401 and 402 is similar to the content of steps 201 and 202 shown in Figure 2 . To avoid repetition, it will not be elaborated here. Specifically, reference can be made to the content of steps 201 and 202 shown in the foregoing Figure 2 .

[0071] Exemplarily, when the first pressure does not meet the pressure requirement, the first pressure can be adjusted to meet the pressure demand. Furthermore, the method further includes: when the first pressure is lower than the target pressure holding pressure, use a pressure regulating device to adjust the first pressure to be not lower than the target pressure holding pressure. Exemplarily, the pressure regulating device can reduce the first pressure higher than the target pressure holding pressure so that the first pressure is equal to the target pressure holding pressure, or increase the first pressure lower than the target pressure holding pressure so that the first pressure is not lower than the target pressure holding pressure. The target regulating device includes a first pressure reducing valve, a pressure increasing valve, and a second pressure reducing valve. Specifically, continue to refer to Figure 3 . One end of the first pressure reducing valve is connected to the target gas source, the other end of the first pressure reducing valve is connected to one end of the pressure increasing valve, the other end of the pressure increasing valve is connected to one end of the second pressure reducing valve, and the other end of the second pressure reducing valve is connected to the first solenoid valve. Exemplarily, when the first pressure is high, the first pressure can be reduced by the first pressure reducing valve, and then the first pressure can be increased by the pressure increasing valve, and the increased first pressure is stored in the gas storage tank. When inflating, the increased first pressure can also be stabilized based on the second pressure reducing valve to ensure that the increased first pressure is the target pressure holding pressure. When the first pressure is low, the first pressure can be increased by the pressure increasing valve, and the increased first pressure is stored in the gas storage tank, and the increased first pressure is stabilized based on the second pressure reducing valve to ensure that the increased first pressure is the target pressure holding pressure. And, an alarm is given when the first pressure exceeds the preset pressure range, indicating that the pressure is too low or too high. The preset pressure range can be that the first pressure P > 0.65 MPa and the first pressure P < 0.3 MPa. The alarm prompt can be through the color of the indicator light or through text, which is not limited here.

[0072] Further, the opening and closing frequency may include the opening duration and the closing duration of the first solenoid valve. Then, according to the preset opening and closing frequency, control the first solenoid valve to switch between the open state and the closed state until the second pressure is equal to the target holding pressure, and control the first solenoid valve and the first ball valve to be in the closed state, including the following steps 403-406.

[0073] 403. When the second pressure is equal to the preset pressure threshold, use the second pressure and the target holding pressure to determine the first pressure difference;

[0074] Among them, the relevant content of the preset pressure threshold in step 403 can refer to the content of the preset pressure threshold in the foregoing step 203, which will not be elaborated here. Further, in this embodiment, when the second pressure is equal to the preset pressure threshold, the opening and closing of the first solenoid valve can be controlled based on the pressure difference between the second pressure and the target holding pressure. Specifically, when the second pressure is equal to the preset pressure threshold, use the second pressure and the target holding pressure to determine the first pressure difference, and the first pressure difference is used to reflect the pressure gap between the second pressure and the target holding pressure.

[0075] 404. Use the corresponding relationship between the preset pressure difference and the opening and closing frequency to determine the target opening duration and the target closing duration of the opening and closing frequency under the first pressure difference. The target opening duration is positively correlated with the pressure difference, and the target closing duration is negatively correlated with the pressure difference;

[0076] Furthermore, the corresponding relationship between the pressure difference and the opening / closing frequency can be preset. Then, based on the corresponding relationship between the pressure difference and the opening / closing frequency, the target opening duration and the target closing duration of the opening / closing frequency at the first pressure difference can be determined. Among them, the purpose of setting the first solenoid valve to open and close at the opening / closing frequency is to quickly keep the second pressure constant at the target pressure holding pressure. Therefore, in the design process of the corresponding relationship between the pressure difference and the opening / closing frequency, the opening duration is positively correlated with the pressure difference, and the closing duration is negatively correlated with the pressure difference. That is, when the pressure difference gets closer and closer to 0 (when the second pressure gets closer and closer to the target pressure holding pressure), the shorter the opening duration, the less the target gas source is filled, and the slower the filling speed. And the longer the closing duration is more conducive to the stability of the pressure, realizing precise pressure control. Among them, the method of simulation calculation can be used to pre-determine which opening / closing frequency should be adopted at each pressure difference. Specifically, for each pressure difference, the pressure difference smaller than this pressure difference is used as the target pressure difference. By summing the target pressure difference and the second pressure, the target filling pressure that needs to be filled during the opening and closing process of the first solenoid valve this time is calculated. The target filling pressure is the sum of the target pressure difference and the second pressure. Then, by simulating various filling environment data of the device to be tested, according to the filling environment data and the target filling pressure, the first opening duration required to fill the device to be tested with the target filling pressure is determined, as well as the first closing duration required to stabilize the target filling pressure, obtaining the first opening / closing frequency. The first opening / closing frequency includes the first opening duration and the first closing duration. Then, the corresponding relationship between the pressure difference and the first opening / closing frequency under this filling environment data is established.

[0077] 405. Control the opening of the first solenoid valve according to the target opening duration, and after the first solenoid valve is opened for the target opening duration, control the first solenoid valve to close;

[0078] 406. After the closing time of the first solenoid valve reaches the target closing duration, return to execute the step of determining the first pressure difference by using the second pressure and the target pressure holding pressure, until the second pressure is equal to the target pressure holding pressure, control the first solenoid valve and the first ball valve to be in the closed state;

[0079] It should be noted that when the target opening duration and the target closing duration are determined, the on / off state of the first solenoid valve can be controlled. However, in this embodiment, to improve the accuracy of maintaining the pressure constant at the target holding pressure, after the closing time of the first solenoid valve reaches the target closing duration, the opening and closing frequency will be re-determined to achieve the effect that as the pressure difference gradually decreases, the charging speed gradually decreases, which is beneficial to the precise control of the target holding pressure. Exemplarily, when the second pressure is equal to the preset pressure threshold, the pressure value is 0.55, and the target pressure is 0.6, then the first pressure difference is 0.05. The corresponding opening and closing frequency for this first pressure difference can be a target opening time of 2 seconds and a target closing duration of 1 s. Then record the opening time at this moment (since it is in the open state before the second pressure equals the preset threshold during inflation). When the target opening time of 2 seconds is reached, close the first solenoid valve. Further, during the closing time, the pressure is stabilized. After the closing time of the first solenoid valve reaches the target closing duration of 1 s (the pressure stabilization ends and the pressure is relatively stable at this time), a new first pressure difference between the second pressure and the target holding pressure at this time is obtained, and the opening and closing frequency of the first solenoid valve is re-determined. For example, if the new first pressure difference at this time is 0.03, then the corresponding opening and closing frequency for this new first pressure difference can be a target opening duration of 1 second and a target closing duration of 2 seconds. Then, after the closing time of the first solenoid valve reaches the target closing duration of 1 s, the solenoid valve can be controlled with a target opening duration of 1 second and a target closing duration of 2 seconds. Continuously repeat the above process until the new first pressure difference is 0, or the second pressure equals the target holding pressure, then complete the inflation of the device under test, and control both the first solenoid valve and the first ball valve to be in the closed state. In this way, a control method with precise pressure control and adjustable charging speed is achieved. Exemplarily, there are delays in both the opening and closing of the ball valve, so the ball valve can be opened first during inflation, and when stopping inflation, the solenoid valve can be closed first to improve the inflation efficiency.

[0080] 407. Real-time monitor the pressure data of the device under test within the preset holding duration, and determine the pressure holding capacity of the device under test according to the pressure data and the preset rules.

[0081] It should be noted that the steps shown in step 407 are Figure 2 similar to the content of step 204 shown in the steps shown. To avoid repetition, no detailed description will be given here. For details, reference can be made to the content of step 204 shown in the foregoing Figure 2 steps shown in step 204.

[0082] Exemplarily, the determining the pressure holding capacity of the device under test according to the pressure data and the preset rules may include steps A1 - A2:

[0083] A1. Time the holding pressure duration, obtain the third pressure of the device under test at the start time of the holding pressure duration, and obtain the fourth pressure of the device under test at the end time of the holding pressure duration;

[0084] A2. Determine the holding pressure capacity of the device under test according to the third pressure, the fourth pressure, and the preset rule.

[0085] It should be noted that the holding pressure duration is timed, and the third pressure at the start time of holding pressure and the fourth pressure at the end time are recorded. The holding pressure capacity is evaluated by obtaining the third pressure and the fourth pressure. For example, the quality of the holding pressure capacity is evaluated by comparing the magnitude or ratio of the third pressure and the fourth pressure according to the preset rule, etc., which is not limited here.

[0086] In a feasible implementation manner, the determining the holding pressure capacity of the device under test according to the third pressure, the fourth pressure, and the preset rule includes steps B1 - B4;

[0087] B1. Obtain the target device type of the device under test;

[0088] Exemplarily, the holding pressure information further includes the target device type of the device under test, and different device types have different holding pressure requirements. Different holding pressure requirements are evaluated by different preset rules.

[0089] B2. Use the third pressure, the fourth pressure, and a preset leak rate algorithm to determine the target leak rate of the device under test;

[0090] It should be noted that in this embodiment, the leak rate is calculated through the third pressure and the fourth pressure to determine the target leak rate of the device under test. Exemplarily, the preset leak rate algorithm is as follows:

[0091] Leak rate a1 = (P1 - P2) * volume / holding pressure duration, where P1 is the third pressure, P2 is the fourth pressure, and the volume is the volume of the device under test, which can be manually input. The volumes of devices under test of different device types are different. For example, the volume of a cabinet is larger than that of a server.

[0092] B3. Based on the corresponding relationship between the preset device type and the leak rate threshold, determine the target leak rate threshold corresponding to the target device type of the device under test;

[0093] Further, the preset rules may include a leakage rate threshold. Different devices to be tested have different pressure holding requirements due to different volumes. If the device to be tested selected is a node (server), the leakage rate threshold is a0 = 4E-3 mbar.L / s. If the device to be tested selected is a cabinet, the leakage rate threshold is a0 = 9E-3 mbar.L / s, where E is the symbol for scientific notation. Furthermore, through the corresponding relationship between the device type and the leakage rate threshold, the target leakage rate threshold corresponding to the target device type of the device to be tested is determined, and the preset rule for evaluating the pressure holding ability in this test is obtained. The target device type is the device to be tested selected for this pressure holding test, and the target leakage rate threshold is the leakage rate threshold corresponding to this target device type.

[0094] B4. Determine the pressure holding ability of the device to be tested according to the target leakage rate and the target leakage rate threshold.

[0095] Specifically, step B4 can be to compare the target leakage rate and the target leakage rate threshold by comparing their magnitudes. If the target leakage rate is less than or equal to the target leakage rate threshold, it is determined that the pressure holding ability of the device to be tested is qualified; if the target leakage rate is greater than the target leakage rate threshold, it is determined that the pressure holding ability of the device to be tested is unqualified. Furthermore, the pressure holding ability of the device to be tested is obtained.

[0096] In a feasible implementation manner, after determining the pressure holding ability of the device to be tested according to the third pressure, the fourth pressure, and the preset rules, it further includes:

[0097] C1. Control the second ball valve to open to discharge the target gas source in the device to be tested;

[0098] C2. When the discharge of the target gas source is completed, control the second ball valve to close;

[0099] C2. Output the prompt information of the device to be tested, and the prompt information is used to indicate the pressure holding ability of the device to be tested.

[0100] It can be understood that after the pressure holding test is completed, the charged gas needs to be discharged. Specifically, by controlling the second ball valve to open, and the second ball valve is the exhaust valve, thereby discharging the target gas source charged in the target device. By detecting the pressure of the device to be tested in real time to determine whether the gas discharge work is completed. When the discharge of the target gas source is completed, control the second ball valve to close and output the prompt information of the device to be tested. The prompt information is used to indicate the pressure holding ability of the device to be tested, such as prompting that the pressure holding has been completed, and prompting that this pressure holding test: qualified or unqualified.

[0101] The present invention provides a method for testing the pressure-holding performance, and the method includes: when the first pressure of the target gas source to be filled into the device under test is not lower than the target pressure-holding pressure of the device under test, controlling the first ball valve to open with a preset opening degree and controlling the first solenoid valve to open; both the first ball valve and the first solenoid valve are installed on the gas filling pipeline for transmitting the target gas source to the device under test; monitoring the real-time second pressure of the device under test; when the second pressure is equal to the preset pressure threshold, determining a first pressure difference by using the second pressure and the target pressure-holding pressure; determining a target opening duration and a target closing duration of the opening and closing frequency at the first pressure difference by using the corresponding relationship between the preset pressure difference and the opening and closing frequency, the target opening duration is positively correlated with the pressure difference, and the target closing duration is negatively correlated with the pressure difference; controlling the first solenoid valve to open according to the target opening duration, and after the first solenoid valve is opened for the target opening duration, controlling the first solenoid valve to close; after the closing time of the first solenoid valve reaches the target closing duration, returning to execute the step of determining the first pressure difference by using the second pressure and the target pressure-holding pressure until the second pressure is equal to the target pressure-holding pressure, controlling the first solenoid valve and the first ball valve to be in a closed state; real-time monitoring the pressure data of the device under test within the preset pressure-holding duration, and determining the pressure-holding ability of the device under test according to the pressure data and the preset rules. By the above method, controlling the first ball valve to open with a preset opening degree can control the filling speed of the target gas source, and by controlling the opening and closing of the first solenoid valve, not only can the pressure be quickly stabilized, but also the pressure instability caused by the delay of the ball valve can be reduced, the efficiency of the pressure-holding performance test is improved, and the automatic detection of the pressure-holding test of the liquid cooling system is realized by the above method.

[0102] Please refer to Figure 5 , Figure 5 which is a structural block diagram of a device for testing the pressure-holding performance in an embodiment of the present invention. As Figure 5 shown, the device includes:

[0103] The first valve control module 501: used for controlling the first ball valve to open with a preset opening degree and controlling the first solenoid valve to open when the first pressure of the target gas source to be filled into the device under test is not lower than the target pressure-holding pressure of the device under test; both the first ball valve and the first solenoid valve are installed on the gas filling pipeline for transmitting the target gas source to the device under test;

[0104] The pressure detection module 502: used for monitoring the real-time second pressure of the device under test;

[0105] The second valve control module 503: used for when the second pressure is equal to the preset pressure threshold, controlling the first solenoid valve to switch between the open state and the closed state according to the preset opening and closing frequency until the second pressure is equal to the target pressure-holding pressure, controlling the first solenoid valve and the first ball valve to be in a closed state, and the preset pressure threshold is less than the target pressure-holding pressure;

[0106] Pressure holding capacity evaluation module 504: It is used to monitor the pressure data of the device under test in real time within a preset pressure holding duration, and determine the pressure holding capacity of the device under test according to the pressure data and preset rules.

[0107] It should be noted that, as Figure 5 the functions of the various modules in the device shown, are similar to Figure 2 the contents of the various steps in the method shown. To avoid repetition, they will not be elaborated here. Specifically, reference can be made to the contents of the various steps in the aforementioned Figure 2 method shown.

[0108] The present invention provides a test device for pressure holding performance. The device includes: a first valve control module: when the first pressure of the target gas source to be filled into the device under test is not lower than the target pressure holding pressure of the device under test, it controls the first ball valve to open with a preset opening degree and controls the first solenoid valve to open; both the first ball valve and the first solenoid valve are installed on the gas filling pipeline for transmitting the target gas source to the device under test; a pressure detection module: used to monitor the real-time second pressure of the device under test; a second valve control module: when the second pressure is equal to a preset pressure threshold, it controls the first solenoid valve to switch between the open state and the closed state according to a preset opening and closing frequency until the second pressure is equal to the target pressure holding pressure, and then controls the first solenoid valve and the first ball valve to be in the closed state, where the preset pressure threshold is less than the target pressure holding pressure; a pressure holding capacity evaluation module: used to monitor the pressure data of the device under test in real time within a preset pressure holding duration, and determine the pressure holding capacity of the device under test according to the pressure data and preset rules. Through the above device, controlling the first ball valve to open with a preset opening degree can control the filling speed of the target gas source, and by controlling the opening and closing of the first solenoid valve, not only can the pressure be quickly stabilized, but also the pressure instability caused by the delay of the ball valve can be reduced, improving the efficiency of the pressure holding performance test.

[0109] Figure 6 shows the internal structure diagram of a computer device in an embodiment. The computer device can specifically be a terminal or a server. As Figure 6 shown, the computer device includes a processor, a memory, and a network interface connected through a system bus. Among them, the memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system and can also store a computer program. When the computer program is executed by the processor, the processor can implement the above method. The internal memory can also store a computer program. When the computer program is executed by the processor, the processor can execute the above method. Those skilled in the art can understand, Figure 6The structure shown is only a block diagram of some structures related to the solution of this application, and does not constitute a limitation on the computer device to which the solution of this application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine some components, or have different component arrangements.

[0110] In one embodiment, a computer device is provided, including a memory and a processor. The memory stores a computer program. When the computer program is executed by the processor, the processor is caused to execute the steps of the method as Figure 2 or Figure 4 shown.

[0111] In one embodiment, a computer-readable storage medium is provided, storing a computer program. When the computer program is executed by a processor, the processor is caused to execute the steps of the method as Figure 2 or Figure 4 shown.

[0112] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The program can be stored in a non-volatile computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, storage, database, or other medium used in the various embodiments provided in this application can include non-volatile and / or volatile memories. Non-volatile memories can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memories can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), Rambus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and Rambus dynamic RAM (RDRAM), etc.

[0113] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0114] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A test method for pressure holding performance, characterized in that, The method includes: When the first pressure of the target gas source to be filled into the device under test is not lower than the target pressure holding pressure of the device under test, control the first ball valve to open with a preset opening degree and control the first solenoid valve to open; both the first ball valve and the first solenoid valve are installed on the gas filling pipeline for transmitting the target gas source to the device under test; Monitor the real-time second pressure of the device under test; When the second pressure is equal to a preset pressure threshold, control the first solenoid valve to switch between the open state and the closed state according to a preset opening and closing frequency until the second pressure is equal to the target pressure holding pressure, and then control the first solenoid valve and the first ball valve to be in the closed state, where the preset pressure threshold is less than the target pressure holding pressure; Monitor the pressure data of the device under test in a preset pressure holding duration in real time, and determine the pressure holding ability of the device under test according to the pressure data and a preset rule.

2. The method according to claim 1, wherein The opening and closing frequency includes the opening duration and the closing duration of the first solenoid valve. The step of controlling the first solenoid valve to switch between the open state and the closed state according to a preset opening and closing frequency until the second pressure is equal to the target pressure holding pressure and then controlling the first solenoid valve and the first ball valve to be in the closed state includes: Determine a first pressure difference using the second pressure and the target pressure holding pressure; Determine the target opening duration and the target closing duration of the opening and closing frequency at the first pressure difference using the corresponding relationship between the preset pressure difference and the opening and closing frequency, where the target opening duration is positively correlated with the pressure difference and the target closing duration is negatively correlated with the pressure difference; Control the first solenoid valve to open according to the target opening duration, and after the first solenoid valve has been open for the target opening duration, control the first solenoid valve to close; After the closing time of the first solenoid valve reaches the target closing duration, return to execute the step of determining the first pressure difference using the second pressure and the target pressure holding pressure until the second pressure is equal to the target pressure holding pressure, and then control the first solenoid valve and the first ball valve to be in the closed state.

3. The method according to claim 1, wherein The step of determining the pressure holding ability of the device under test according to the pressure data and a preset rule includes: Start timing according to the pressure holding duration, obtain the third pressure of the device under test at the start time of the pressure holding duration, and obtain the fourth pressure of the device under test at the end time of the pressure holding duration; Determine the pressure holding ability of the device under test according to the third pressure, the fourth pressure, and the preset rule.

4. The method according to claim 3, characterized in that The step of determining the pressure holding ability of the device under test according to the third pressure, the fourth pressure, and the preset rule includes; Obtain the target device type of the device under test; Determine the target leak rate of the device under test using the third pressure, the fourth pressure, and a preset leak rate algorithm; Based on the corresponding relationship between the preset device type and the leak rate threshold, determine the target leak rate threshold corresponding to the target device type of the device under test; Determine the pressure holding ability of the device under test according to the target leak rate and the target leak rate threshold.

5. The method according to claim 4, wherein Determining the pressure holding capacity of the device to be tested according to the target leakage rate and the target leakage rate threshold includes: If the target leakage rate is less than or equal to the target leakage rate threshold, it is determined that the pressure holding capacity of the device to be tested is qualified; If the target leakage rate is greater than the target leakage rate threshold, it is determined that the pressure holding capacity of the device to be tested is unqualified.

6. The method according to claim 3, characterized in that, After determining the pressure holding capacity of the device to be tested according to the third pressure, the fourth pressure and the preset rule, it further includes: Controlling the second ball valve to open to discharge the target gas source in the device to be tested; When the discharge of the target gas source is completed, controlling the second ball valve to close; Outputting a prompt message of the device to be tested, where the prompt message is used to indicate the pressure holding capacity of the device to be tested.

7. The method according to claim 6, wherein The method further includes: When the first pressure is lower than the target pressure holding pressure, using a pressure regulating device to adjust the first pressure to the target pressure holding pressure.

8. A test device for pressure-holding performance, characterized in that, The device includes: A first valve control module: used to control the first ball valve to open with a preset opening degree and control the first solenoid valve to open when the first pressure of the target gas source to be filled into the device to be tested is not lower than the target pressure holding pressure of the device to be tested; both the first ball valve and the first solenoid valve are installed on the gas filling pipeline for transmitting the target gas source to the device to be tested; A pressure detection module: used to monitor the real-time second pressure of the device to be tested; A second valve control module: used to control the first solenoid valve to switch between the open state and the closed state according to a preset opening and closing frequency when the second pressure is equal to a preset pressure threshold, until the second pressure is equal to the target pressure holding pressure, and then control the first solenoid valve and the first ball valve to be in the closed state, where the preset pressure threshold is less than the target pressure holding pressure; A pressure holding capacity evaluation module: used to monitor the pressure data of the device to be tested in a preset pressure holding duration in real time, and determine the pressure holding capacity of the device to be tested according to the pressure data and a preset rule.

9. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, the processor is caused to execute the steps of the method according to any one of claims 1 to 7.

10. A computer device, comprising a memory and a processor, characterized in that, The memory stores a computer program, and when the computer program is executed by the processor, the processor is caused to execute the steps of the method according to any one of claims 1 to 7.

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