Energy storage exhaust valve waterproof test method and full-automatic water spray test equipment

Abstract

The invention is suitable for the technical field of waterproof performance testing, and particularly relates to an energy storage exhaust valve waterproof testing method and full-automatic water spraying testing equipment, and the method comprises the steps: obtaining the pressure information in a target time period; obtaining the number of change events; determining the number of pressure cycles; the failure ratio of the leakage event number to the pressure cycle number is calculated; according to the pressure information and the failure rate, whether the waterproof performance of the tested energy storage exhaust valve reaches the standard or not is judged. According to the waterproof test method for the energy storage exhaust valve provided by the invention, the problem that the test result is inaccurate due to the fact that the waterproof performance of the energy storage exhaust valve is tested only under the fixed pressure and the dynamic pressure change of the energy storage exhaust valve in the actual work cannot be truly reflected in the traditional waterproof test process of the energy storage exhaust valve is always static can be solved.

Description

Technical Field

[0001] The present application belongs to the technical field of waterproof performance testing, and in particular relates to a waterproof testing method for an energy storage exhaust valve and a fully automatic water spraying test device. Background Art

[0002] Energy storage exhaust valve is an important component used in various industrial and automotive fields. It is mainly used to control the discharge of fluids and gases to ensure the normal operation and safety of the system.

[0003] The traditional energy storage exhaust valve waterproof test process is often static, and the waterproof performance of the energy storage exhaust valve is only tested under a fixed pressure. It cannot truly reflect the dynamic pressure changes of the energy storage exhaust valve in actual work (for example, during pressurization, pressure maintenance and decompression cycles), which leads to inaccurate test results. Summary of the invention

[0004] The embodiments of the present application provide a method for testing the water resistance of an energy storage exhaust valve and a fully automatic water spray test device, which can solve the problem that the traditional water resistance test process of an energy storage exhaust valve is often static and only tests the water resistance performance of the energy storage exhaust valve under a fixed pressure, and cannot truly reflect the dynamic pressure changes of the energy storage exhaust valve in actual work, thereby leading to inaccurate test results.

[0005] In a first aspect, an embodiment of the present application provides a method for testing the waterproofness of an energy storage exhaust valve, comprising: Obtaining pressure information within a target period; wherein the pressure information is used to indicate the pressure change of the energy storage exhaust valve under test when it is subjected to a fluid in a sealed state, wherein the sealed state is a state in which the test device applies a predetermined sealing force to the exhaust valve; Obtaining the number of change events; wherein the number of change events is the number of effective water seepages detected when the test device performs a pressure loading action on the energy storage exhaust valve within the target time period; a complete pressure loading action includes a pressurizing action, a pressure maintaining action, and a pressure reducing action; Determine the number of pressure cycles; wherein the number of pressure cycles is the number of cycle tests of the pressure loading action performed by the test device on the energy storage exhaust valve within the target time period; Calculate the failure ratio of the number of leak events to the number of pressure cycles; According to the pressure information and the failure ratio, it is determined whether the waterproof performance of the energy storage exhaust valve under test meets the standard.

[0006] The above technical solutions in the embodiments of the present application have at least the following technical effects: The energy storage exhaust valve waterproof test method provided in the present application helps to understand the dynamic response of the valve when it is subjected to fluid by obtaining the pressure change of the energy storage exhaust valve under test in a sealed state within the target time period. By obtaining the amount of effective water seepage detected when the test device performs the pressure loading action on the energy storage exhaust valve within the target time period, the leakage of the valve under different pressure conditions can be quantified, which helps to provide data support for the subsequent determination of whether the waterproof performance of the energy storage exhaust valve meets the standard. By determining the number of cyclic tests of the pressure loading action performed by the test device on the energy storage exhaust valve within the target time period, it is helpful to test the performance of the exhaust valve in multiple cycles, thereby reducing random errors, thereby helping to improve the accuracy of the test results. Therefore, it is possible to determine whether the waterproof performance of the energy storage exhaust valve under test meets the standard based on multiple factors, including the pressure change of the energy storage exhaust valve under test when it is subjected to fluid in a sealed state within the target period, the amount of effective water seepage detected when the test device performs pressure loading action on the energy storage exhaust valve within the target period, and the number of cyclic tests of the pressure loading action performed by the test device on the energy storage exhaust valve within the target period, thereby avoiding misjudgment caused by a single indicator (such as relying only on pressure) and making the determination of waterproof performance more accurate and reliable.

[0007] In a possible implementation manner of the first aspect, obtaining pressure information within a target period includes: Record the pressure maintenance period; wherein the pressure maintenance period is the cumulative period during which the pressure of the energy storage exhaust valve in the sealed state remains stable within the target pressure range within the target period; Obtaining a pressure change period; wherein the pressure change period is a cumulative period during which the pressure of the energy storage exhaust valve in a sealed state is within a target pressure range and periodic pressure changes occur within a target period; The pressure information is determined according to the pressure maintenance period and the pressure change period.

[0008] In a possible implementation manner of the first aspect, recording the pressure maintenance period includes: During the test, determining whether the energy storage exhaust valve is in the sealing state; When it is determined that the energy storage exhaust valve is in the sealing state, calculating the pressure change rate according to the acquired pressure data; If the pressure change rate is less than a preset threshold, the start time and end time of the current pressure unchanged are recorded; The accumulated time during which all pressures remain unchanged within the target period is determined as the pressure maintenance period.

[0009] In a possible implementation manner of the first aspect, obtaining the pressure change period includes: When it is determined that the energy storage exhaust valve is in the sealed state, determining whether the pressure of the energy storage exhaust valve undergoes periodic pressure changes according to the pressure data; When it is determined that the pressure of the energy storage exhaust valve undergoes periodic pressure changes, the start time and end time of the current pressure change are recorded; The accumulated time of all pressure changes within the target period is determined as the pressure change period.

[0010] In a possible implementation manner of the first aspect, when it is determined that the energy storage exhaust valve is in the sealed state, after determining according to the pressure data whether a periodic pressure change occurs in the pressure of the energy storage exhaust valve, the method further includes: Detecting whether the pressure change meets the periodicity requirement according to the pressure data; wherein the periodicity requirement is that the number of target pressure data among the multiple pressure data obtained exceeds a preset number, and the target pressure data number is the number of the most recent pressure data whose harmonic component values ​​of the maximum pressure data and the minimum pressure data exceed a preset value, or the number of the most recent pressure data whose acquisition time interval between the maximum pressure data and the minimum pressure data is less than a set time interval; When the pressure change detected according to the pressure data meets the periodic requirement, it is determined that the pressure of the energy storage exhaust valve undergoes a periodic pressure change.

[0011] In a possible implementation manner of the first aspect, obtaining the number of change events includes: During the test, whenever leakage flow data is detected, the number of leakage events, the time when the leakage of the leakage flow data is detected, and the leakage coordinates corresponding to the leakage flow data are obtained; Based on the leakage occurrence time of the detected leakage flow data corresponding to the number of leakage events and the leakage coordinates, determining whether effective water seepage is detected when the pressure loading action performed by the testing device on the energy storage exhaust valve; When it is determined that effective water seepage is detected during the pressure loading action performed by the testing device on the energy storage exhaust valve, the effective leakage quantity is accumulated; The cumulative number of effective leakages within the target period is determined as the number of change events.

[0012] In a possible implementation of the first aspect, when it is determined that effective water seepage is detected during the pressure loading action performed by the test device on the energy storage exhaust valve, before accumulating the number of effective leakages, the method further includes: Based on the leakage occurrence time of the detected leakage flow data corresponding to the number of leakage events and the leakage coordinates, determine whether the number of leakage events meets the preset accumulation requirement; wherein the preset accumulation requirement is that the number of leakage flow data corresponding to the number of leakage events detected within a target range within a set time period exceeds a preset number, and the target range is a target radius range with the leakage coordinates corresponding to the leakage flow data detected for the first time within the set time period as a reference point; When it is determined that the number of leakage events meets the preset cumulative requirement, it is determined that effective water seepage is detected when the test device performs a pressure loading action on the energy storage exhaust valve.

[0013] In a possible implementation of the first aspect, determining whether the waterproof performance of the energy storage exhaust valve under test meets the standard according to the pressure information and the failure ratio includes: According to the pressure information and the failure rate of each batch in N consecutive test batches, it is determined whether the waterproof performance of the energy storage exhaust valve under test meets the standard; wherein N is a positive integer greater than 1.

[0014] In a possible implementation of the first aspect, determining whether the waterproof performance of the energy storage exhaust valve under test meets the standard according to the pressure information and the failure rate of each batch in a plurality of consecutive test batches includes: When the value of the pressure information of each batch in N consecutive test batches exceeds the target value and the failure rate exceeds the preset rate, it is determined that the waterproof performance of the energy storage exhaust valve being tested does not meet the standard.

[0015] In a second aspect, an embodiment of the present application provides an energy storage exhaust valve waterproof test system, which is used to implement the energy storage exhaust valve waterproof test method described in any one of the first aspects above, and the energy storage exhaust valve waterproof test system is applied to a fully automatic water spray test equipment, and the energy storage exhaust valve waterproof test system includes: An acquisition unit, used to acquire pressure information within a target period; wherein the pressure information is used to indicate the pressure change of the energy storage exhaust valve under test when it is subjected to a fluid in a sealed state, wherein the sealed state is a state in which the pressure test equipment applies a predetermined sealing force to the energy storage exhaust valve; A monitoring unit, used to obtain the number of change events; wherein the number of change events is the number of effective water seepage detected when the test device performs a pressure loading action on the energy storage exhaust valve within the target period; a complete pressure loading action includes a pressurizing action, a pressure maintaining action, and a pressure reducing action; A determination unit, configured to determine the number of pressure cycles; wherein the number of pressure cycles is the number of cycle tests of the pressure loading action performed by the test device on the energy storage exhaust valve within the target time period; a calculation unit for calculating a failure ratio of the number of leakage events to the number of pressure cycles; A judgment unit is used to judge whether the waterproof performance of the energy storage exhaust valve under test meets the standard according to the pressure information and the failure ratio.

[0016] In a third aspect, an embodiment of the present application provides a fully automatic water spray test device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the fully automatic water spray test method described in any one of the first aspects above is implemented.

[0017] It can be understood that the beneficial effects of the second to third aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a flow chart of a waterproof testing method for an energy storage exhaust valve provided in one embodiment of the present application; Figure 2 It is a schematic diagram of the implementation process of obtaining the pressure maintenance period in the energy storage exhaust valve waterproof test method provided in one embodiment of the present application; Figure 3 It is a schematic diagram of the implementation process of obtaining the pressure change period in the energy storage exhaust valve waterproof test method provided in one embodiment of the present application; Figure 4 It is a structural schematic diagram of the energy storage exhaust valve waterproof testing system provided in an embodiment of the present application; Figure 5 It is a structural schematic diagram of a control device of a fully automatic water spray test equipment provided in an embodiment of the present application; Figure 6 It is a structural schematic diagram of the testing device of the fully automatic water spray test equipment provided in the embodiment of the present application. DETAILED DESCRIPTION

[0020] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0021] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0022] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0023] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting" depending on the context. Similarly, the phrase "if it is determined" or "if the described condition or event is detected" can be interpreted as meaning "uponce determined" or "in response to determining" or "uponce the described condition or event is detected" or "in response to detecting the described condition or event" depending on the context.

[0024] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0025] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0026] In the related technology, the energy storage exhaust valve is an important component used in various industrial and automotive fields, mainly used to control the discharge of fluids and gases to ensure the normal operation and safety of the system.

[0027] The traditional energy storage exhaust valve waterproof test process is often static, and the waterproof performance of the energy storage exhaust valve is only tested under a fixed pressure. It cannot truly reflect the dynamic pressure changes of the energy storage exhaust valve in actual work (for example, during pressurization, pressure maintenance and decompression cycles), which leads to inaccurate test results.

[0028] In order to solve the above problems, the embodiments of the present application provide a method for testing the waterproofness of an energy storage exhaust valve and a fully automatic water spraying test device.

[0029] In this method, by obtaining the pressure change of the energy storage exhaust valve under test in a sealed state during the target period, it is helpful to understand the dynamic response of the valve when it is subjected to the fluid. By obtaining the number of effective water seepage detected when the test device performs the pressure loading action on the energy storage exhaust valve during the target period, the leakage of the valve under different pressure conditions can be quantified, which is helpful to provide data support for the subsequent determination of whether the waterproof performance of the energy storage exhaust valve meets the standard. By determining the number of cycle tests of the pressure loading action performed by the test device on the energy storage exhaust valve during the target period, it is helpful to test the performance of the exhaust valve in multiple cycles, thereby reducing random errors, and thus helping to improve the accuracy of the test results. Therefore, it is possible to determine whether the waterproof performance of the energy storage exhaust valve under test meets the standard based on the pressure change of the energy storage exhaust valve under test during the sealed state during the target period, the number of effective water seepage detected when the test device performs the pressure loading action on the energy storage exhaust valve during the target period, and the number of cycle tests of the pressure loading action performed by the test device on the energy storage exhaust valve during the target period, thereby avoiding the misjudgment that may be caused by a single indicator (such as relying only on pressure), making the determination of waterproof performance more accurate and reliable.

[0030] The energy storage exhaust valve waterproof test method provided in the embodiment of the present application can be applied to a fully automatic water spray test equipment. At this time, the fully automatic water spray test equipment is the executor of the energy storage exhaust valve waterproof test method provided in the embodiment of the present application. The embodiment of the present application does not impose any restrictions on the specific type of the fully automatic water spray test equipment.

[0031] For example, the fully automatic water spray test equipment may include a pressure test device, a test device and a control device. The control device is electrically connected to the pressure test device and the test device respectively. The energy storage exhaust valve can be installed on a pressure test device (for example, a gas compressor or a liquid pump, etc.) so that the pressure test device applies a predetermined sealing force (torque, mechanical fastening force) to the energy storage exhaust valve to simulate the installation conditions in actual use, and the pressure test device can deliver a fluid of a certain pressure to the energy storage exhaust valve to test the pressure change of the energy storage exhaust valve when it is subjected to the fluid in a sealed state, and send the test situation to the control device. The test device (for example, a waterproof performance tester, a water spray tester, etc.) can be equipped with multiple adjustable nozzles, which can simulate water spraying at different pressures to monitor the waterproof condition of the tested product (energy storage exhaust valve), such as water penetration, humidity, temperature, etc., and send the monitoring information to the control device. The control device can determine whether the waterproof performance of the tested energy storage exhaust valve meets the standard based on the obtained pressure information and failure rate.

[0032] For example, the control device can be a single chip microcomputer, a mobile phone, a tablet computer, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, a desktop computer, a computing device or a computer connected to a wireless modem, a laptop computer, a handheld communication device, a handheld computing device, etc.

[0033] In order to better understand the energy storage exhaust valve waterproof testing method provided in the embodiment of the present application, the specific implementation process of the energy storage exhaust valve waterproof testing method provided in the embodiment of the present application is exemplarily introduced below.

[0034] Figure 1 A schematic flow chart of a method for testing the water resistance of an energy storage exhaust valve provided in an embodiment of the present application is shown. The method for testing the water resistance of an energy storage exhaust valve includes: S100, obtaining pressure information within a target period of time, wherein the pressure information is used to indicate the pressure change of the energy storage exhaust valve under test when it is subjected to fluid in a sealed state, wherein the sealed state is a state in which the pressure test equipment applies a predetermined sealing force to the energy storage exhaust valve.

[0035] It is understandable that the target period can be 1 hour, 2 hours, 3 hours, etc. The pressure information can be information about pressure changes caused by rapid changes in fluid, sharp changes in flow, pump start or stop, valve opening or closing, defects in the sealing performance of the exhaust valve, such as slight wear of the sealing ring or impurities stuck on the sealing surface. The energy storage exhaust valve can be installed on a pressure test device so that the pressure test device applies a predetermined sealing force (torque, mechanical tightening force) to the energy storage exhaust valve to simulate the installation conditions in actual use, even if the energy storage exhaust valve is in a sealed state.

[0036] For example, during the target period, the pressure change of the energy storage exhaust valve can be continuously monitored by a pressure sensor. The pressure information can be obtained by the sensor and recorded as a continuous data stream based on time.

[0037] Such an arrangement helps to understand the dynamic response of the valve when it is subjected to the fluid by obtaining the pressure change of the energy storage exhaust valve under test in a sealed state during the target period.

[0038] In a possible implementation, S100, obtaining pressure information within a target period, includes: S110, recording the pressure maintenance period, wherein the pressure maintenance period is the cumulative period during which the pressure of the energy storage exhaust valve in the sealed state is within the target pressure range and remains stable.

[0039] It is understood that before starting the test, a target pressure range can be set. For example, if the target pressure range is 1-3 bar, and the pressure change is less than the set threshold, the pressure must fluctuate between the two to be considered "maintaining stability". Within the target pressure range, when the pressure change (i.e., the maximum difference in pressure fluctuation) is less than the set threshold (such as ±4 bar), the time of each pressure maintenance can be recorded and the time period can be accumulated to obtain the pressure maintenance period.

[0040] For example, assuming that the target pressure range is 5-10bar, the test system is pressure loaded and maintained within 30 minutes: from 1 to 10 minutes, the pressure is stable at 8bar, which meets the target range. From 11 to 15 minutes, the pressure fluctuates between 6 and 9bar, and the pressure change is less than the set threshold (i.e. 9bar-6bar is less than 4bar), which meets the target range. From 16 to 25 minutes, the pressure stabilizes at 7.5bar again, which meets the target range. From 26 to 30 minutes, the pressure fluctuates between 5 and 10bar, and the pressure change is greater than the set threshold (i.e. 10bar-5bar is greater than 4bar), which does not meet the target range. Then the cumulative pressure maintenance period: 1 to 10 minutes, meets the conditions, cumulative 10 minutes. 16 to 25 minutes, meets the conditions, cumulative 10 minutes. The total pressure maintenance period is 20 minutes.

[0041] Such a setting will help in the subsequent evaluation of the waterproof performance of the energy storage exhaust valve.

[0042] In a possible implementation, S110, recording the pressure maintenance period, includes: S111, during the test, determine whether the energy storage exhaust valve is in a sealed state.

[0043] It is understood that the torque and mechanical tightening force applied by the pressure testing equipment can be obtained by the torque sensor to determine whether the energy storage exhaust valve is in a sealed state. If the obtained torque is the preset torque, it is determined that the energy storage exhaust valve is in a sealed state; otherwise, it is determined that the energy storage exhaust valve is not in a sealed state.

[0044] This setting, with clear preset torque values, can provide a quantitative standard, making the judgment process more objective and consistent, helping to improve the repeatability and reliability of the test. It helps to reduce test misjudgments caused by applying improper torque, thereby helping to improve the accuracy of the test results.

[0045] S112, when it is determined that the energy storage exhaust valve is in a sealed state, calculating the pressure change rate according to the pressure data.

[0046] It is understood that the pressure data of the energy storage exhaust valve can be continuously monitored by the pressure sensor. The pressure data can be obtained by the sensor and recorded as a continuous data stream based on time. During the pressure test, the recorded pressure data includes the pressure value (unit: bar) at each time point and the corresponding timestamp. The pressure change rate can be the ratio of the pressure difference between two time points to the time difference between the two time points, for example, = , △P=P(t1)-P(t2), △t=t1-t2.

[0047] With this setting, by continuously recording pressure data, the working status of the energy storage exhaust valve can be monitored in real time. If the pressure change rate is small and stable, it indicates normal. If the pressure change rate is abnormal, it may mean that there is a problem with the sealing of the energy storage exhaust valve. By calculating the change rate, it is possible to quickly find out whether there are problems such as leakage or pressure fluctuations, providing data support for subsequent test results.

[0048] S113, if the pressure change rate is less than a preset threshold, record the start time and end time when the current pressure does not change.

[0049] It can be understood that a pressure change rate threshold is set, that is, a preset threshold. This preset threshold is used to determine whether the pressure change is less than the expected range. During the test, pressure data is continuously collected and the pressure change rate is calculated. For each pair of consecutive time points (t1 and t2), the pressure change rate is calculated. After the pressure change rate of the current time period is calculated, the pressure change rate is compared with the preset threshold. When the pressure change rate is less than the preset threshold, the current time is recorded as the start time. When the pressure change rate is greater than the preset threshold, the current time is recorded as the end time. If the pressure change rate is less than the preset threshold again in the future, the current time continues to be recorded as the start time. When the pressure change rate is greater than the preset threshold, the current time is recorded as the end time. This cycle is repeated, and multiple groups of time periods (i.e., multiple groups of start times and multiple groups of end times corresponding to the start times) can be recorded.

[0050] This setting can continuously record multiple start and end time periods to help evaluate the working status of the energy storage exhaust valve. It is helpful to monitor the energy storage exhaust valve throughout the entire cycle and provide data support for subsequent test results.

[0051] S114, determining the accumulated time during which all pressures do not change within the target period as the pressure maintenance period.

[0052] It can be understood that within the target period, multiple groups of start time and end time are continuously monitored and recorded. For each group of records, the time period is calculated: time period = end time - start time. All recorded time periods are accumulated to obtain the pressure maintenance period.

[0053] In this way, by refining each group of time periods in which the pressure does not change, the stability of the energy storage exhaust valve within the target period can be more accurately evaluated. Each group of pressure maintenance periods is an objective record of the stable operation of the energy storage exhaust valve during the period, which can help identify whether the energy storage exhaust valve is in a stable state in different time periods.

[0054] S120, obtaining a pressure change period, wherein the pressure change period is a cumulative period during which the pressure of the energy storage exhaust valve in a sealed state is within the target pressure range and periodic pressure changes occur within the target period.

[0055] It is understandable that sealing materials (such as rubber pads) may not fit completely due to microscopic unevenness or contaminants, resulting in local adhesion. However, as the pressure continues to act, the sealing material undergoes elastic deformation and may suddenly slide, causing a micron-level gap to open, and the pressure drops suddenly. When the pressure drops, the elastic force of the elastic material will close the gap again, and the pressure will rise again, and this will be repeated to form a periodic pressure change.

[0056] For example, check whether the recorded pressure values ​​are always within the set target range. Use effective methods (such as fast Fourier transform FFT, regression analysis or time series analysis) to check whether the pressure has identifiable periodic fluctuations within the required time period. For example, if the pressure gradually increases and the pressure gradually decreases in two adjacent time periods, it is determined that a periodic pressure change occurs. For example, the pressure gradually increases within 1-5 minutes, while the pressure gradually decreases within 6-10 minutes.

[0057] This setting can obtain the sealing performance of the valve, which is helpful for the subsequent evaluation of the overall waterproof performance of the energy storage exhaust valve.

[0058] In a possible implementation, S120, obtaining a pressure change period, includes: S121, when it is determined that the energy storage exhaust valve is in a sealed state, determine whether the pressure of the energy storage exhaust valve has a periodic pressure change according to the acquired pressure data.

[0059] It can be understood that a time window (e.g., 5 seconds, 10 seconds, 30 seconds, etc.) can be determined. By sliding the window, the entire time series data is traversed step by step. In each window, the mean of all pressure data points in the window is calculated (mean u = , Pi is the pressure value at each moment in the window, and n is the window size). Calculate the standard deviation in each window (standard deviation = , the standard deviation can reflect the amplitude of pressure fluctuations. A larger standard deviation means a larger pressure change. In a certain period of time, analyze whether the mean values ​​of multiple time periods show an alternating upward or downward trend. For example, the difference sequence of the mean values ​​of adjacent time periods can be calculated: △P=P i+1 -P i , if the difference sign shows periodic alternation (such as +, -, +, -...), there may be periodicity. If the standard deviation shows periodic changes over time (such as increasing first and then decreasing), it indicates that the pressure has periodic changes. For example, the extreme points (maximum and minimum values) of the standard deviation in different time periods can be compared. If the intervals between the extreme points are close, there may be periodicity. If the mean and standard deviation show periodic changes at the same time, and the change trends are consistent (such as the standard deviation increases when the mean increases), it indicates whether the pressure of the energy storage exhaust valve has periodic pressure changes.

[0060] With this setting, the alternating rise or fall of the mean combined with the change of the standard deviation can accurately determine the periodic behavior of pressure, reducing the possibility of subjective judgment.

[0061] In a possible implementation, in step S121, when it is determined that the energy storage exhaust valve is in a sealed state, after determining whether the pressure of the energy storage exhaust valve undergoes periodic pressure changes according to the pressure data, the energy storage exhaust valve waterproof test method further includes: S1211, detecting whether the pressure change meets the periodicity requirement according to the pressure data. The periodicity requirement is that the number of target pressure data among the multiple pressure data obtained exceeds a preset number, and the number of target pressure data is the number of the most recent pressure data whose harmonic component values ​​of the maximum pressure data and the minimum pressure data exceed a preset value, or the number of the most recent pressure data whose acquisition time interval between the maximum pressure data and the minimum pressure data is less than a set time interval.

[0062] It can be understood that the harmonic component value of the maximum pressure data and the minimum pressure data can be the difference between the maximum pressure data and the minimum pressure data. When the pressure data between the maximum pressure data and the minimum pressure data presents a downward trend, it is represented as the most recent pressure data. Alternatively, it is determined whether the time interval between the maximum pressure data and the minimum pressure data is less than the set time interval. If the time interval is less than the set time interval, it is represented as the most recent pressure data.

[0063] For example, the multiple pressure data obtained can be screened according to the periodicity requirement, and it is calculated whether the number of target pressure data exceeds the preset number (that is, the number of target pressure data is used to avoid the evaluation error caused by a single pressure change) when the periodicity requirement is met. If the number of target pressure data exceeds the preset number, it means that the pressure of the energy storage exhaust valve has a periodic pressure change; otherwise, it means that the pressure of the energy storage exhaust valve has not a periodic pressure change.

[0064] Such a setting, by integrating the data analysis of the maximum pressure, the minimum pressure and the time interval, can more effectively identify the pressure change situation, help evaluate the performance of the energy storage exhaust valve, and thus improve the reliability of the evaluation results.

[0065] S1212: When the pressure change detected according to the pressure data meets the periodic requirement, it is determined that the pressure of the energy storage exhaust valve undergoes periodic pressure change.

[0066] It can be understood that when the pressure change detected according to the pressure data meets the periodic requirement, it means that the number of target pressure data exceeds the preset number, and it is determined that the pressure of the energy storage exhaust valve undergoes periodic pressure change.

[0067] This setting can accurately judge the periodic behavior of pressure and reduce the possibility of subjective judgment.

[0068] S122, when it is determined that the pressure of the energy storage exhaust valve undergoes periodic pressure changes, the start time and end time of the current pressure change are recorded.

[0069] It can be understood that when the pressure begins to fluctuate, the change in the standard deviation or mean usually manifests as a significant increase or sudden change. If the standard deviation begins to increase, or the mean begins to fluctuate periodically, it can be considered the start time of the periodic fluctuation. When the pressure fluctuation begins to stabilize or return to a state close to the original state, it indicates the end of the periodic fluctuation, at which time the standard deviation begins to decrease or the mean fluctuation decreases. Set a threshold for the standard deviation and mean. Repeating this cycle can record multiple groups of time periods (i.e., multiple groups of start times of pressure changes and multiple groups of end times corresponding to the start times of pressure changes).

[0070] This setting can continuously record multiple start and end time periods to help evaluate the working status of the energy storage exhaust valve. It is helpful to monitor the energy storage exhaust valve throughout the entire cycle and provide data support for subsequent test results.

[0071] S123, determining the accumulated time of all pressure changes within the target period as the pressure change period.

[0072] It can be understood that within the target period, multiple groups of start time and end time are continuously monitored and recorded. For each group of records, the time period is calculated: time period = end time - start time. All recorded time periods are accumulated to obtain the pressure change period.

[0073] In this way, by refining each group of pressure change periods, the stability of the energy storage exhaust valve within the target period can be more accurately evaluated. Each group of pressure change periods is an objective record of the stable operation of the energy storage exhaust valve within the period, which can help identify whether the energy storage exhaust valve is in a stable state in different time periods.

[0074] S130, determining pressure information according to the pressure maintenance period and the pressure change period.

[0075] It can be understood that the pressure information can reflect the ratio between the pressure maintenance period and the pressure change period. If the ratio of the pressure maintenance period is high, it indicates that the energy storage exhaust valve maintains good stability and reliability during operation. On the contrary, if the ratio of the pressure change period is high, it indicates that the energy storage exhaust valve experiences more frequent periodic fluctuations during operation, which may be an indication of poor sealing, design problems or external factors.

[0076] With this setting, by analyzing the ratio of the pressure maintenance period and the pressure change period, the performance of the energy storage exhaust valve within a specific pressure range can be comprehensively evaluated, and its stability and reliability under different working conditions can be understood, which helps to improve the accuracy and reliability of the waterproof performance judgment.

[0077] S200, obtaining the number of change events. The number of change events is the number of effective water seepages detected when the test device performs a pressure loading action on the energy storage exhaust valve within the target period. A complete pressure loading action includes a pressurizing action, a pressure maintaining action, and a pressure reducing action.

[0078] It can be understood that the pressurizing action can be an action of gradually applying pressure to the energy storage exhaust valve to a predetermined value. The pressure-maintaining action can be to maintain a predetermined pressure for a period of time to observe whether water seepage occurs. The decompression action can be to gradually release the pressure to the initial state. Effective water seepage can be considered "effective" only when the water seepage reaches a preset standard or threshold, or when it exceeds the normal leakage tolerance range. It can also be considered "effective" only when the number of leakage flow data detected within the target radius range centered on the leakage coordinate corresponding to the leakage flow data detected for the first time within a set period exceeds the preset number. Among them, the leakage flow data can be the flow data of water seepage, and the leakage coordinates can be the coordinates of the leakage flow data detected, that is, the coordinates of the leakage point when the leakage occurs. Optionally, the coordinates of the leakage point when the leakage occurs can be calibrated by a known reference point. For example, in the process of leakage detection, the detection equipment is compared with a known position (such as a pipeline end point, a valve, etc.), and the coordinates of the leakage point are determined by distance calculation.

[0079] For example, during each pressure loading action (pressurization, pressure maintenance, and pressure reduction), the test device can monitor whether water seepage events occur. For example, a sensor (such as a flow meter or a humidity sensor) can be used to monitor whether water is penetrating or flowing out. Each time effective water seepage is detected, a water seepage number is recorded, that is, a change event number is recorded. During the pressure loading action, all effective water seepage events will be recorded, and the number of change events will be counted based on the number of water seepage events. If there is water seepage in multiple stages of the same pressure loading action (pressurization, pressure maintenance, and pressure reduction), the number of water seepage events needs to be recorded and accumulated separately.

[0080] With such a setting, by obtaining the amount of effective water seepage detected when the test device performs pressure loading action on the energy storage exhaust valve within the target time period, the leakage of the valve under different pressure conditions can be quantified, which helps to provide data support for the subsequent determination of whether the waterproof performance of the energy storage exhaust valve meets the standards.

[0081] In a possible implementation, S200, obtaining the number of change events, includes: S210, during the test process, whenever leakage flow data is detected, the number of leakage events, the leakage occurrence time of the detected leakage flow data, and the leakage coordinates corresponding to the detected leakage flow data are obtained.

[0082] It can be understood that the leakage flow data can be the flow data of water seepage or the data of water seepage detection, and a leakage flow threshold can be defined. For example, when the flow exceeds a preset value (such as 0.01L / min), it can be determined as the data of water seepage detection. The number of leakage events can be the number of leakage flow data detected, and each time leakage flow data is detected, the counter can be increased by 1. The leakage coordinates can be the coordinates where the leakage flow data is detected.

[0083] For example, the leakage flow data can be obtained through a flow sensor. The counter can be used to record the increments to obtain the number of leakage events. The position sensor can be used to feedback the leakage coordinates in real time. And these data are recorded in the memory, as shown in Table 1: Table 1 With this setting, by recording the number of leak incidents, the time and coordinates of the leak, the location and time period of the leak can be accurately located, providing substantial data support for subsequent analysis and decision-making.

[0084] S220, based on the leakage occurrence time and leakage coordinates of the detected leakage flow data corresponding to the number of leakage events, determine whether effective water seepage is detected when the test device performs a pressure loading action on the energy storage exhaust valve.

[0085] It can be understood that the test period can be determined based on the time when the leakage occurred and the set period. During the test period, determine how many leakage events have corresponding leakage coordinates within the target range (for example, the range near the test component of the energy storage exhaust valve, which can be set according to the needs of the operator). For each leakage event, check whether the time when the leakage occurred is between the determined test periods. When the leakage occurs within the test period and the leakage coordinates corresponding to the number of leakage events are within the target range, if the number of leakage events with leakage coordinates within the target range exceeds the preset number, it can be determined that the test device detected effective water seepage when performing the pressure loading action on the energy storage exhaust valve; otherwise, it can be determined that no effective water seepage was detected when the test device performed the pressure loading action on the energy storage exhaust valve.

[0086] For example, the set time period is 1 minute, the preset number is 2, and the current test time is 7:00, then the test period is 6:59-7:00. During the test period, the number of leakage events whose leakage coordinates are within the target range is 4 (the number of leakage events during the test period is 6, that is, the number of leakage events whose leakage coordinates are not within the target range during the test period is 2), then it can be determined that effective water seepage is detected when the test device performs pressure loading action on the energy storage exhaust valve.

[0087] By setting such a configuration, by setting a specific time period and target range, it is possible to more accurately determine whether effective water seepage exists, thereby reducing the possibility of misjudgment due to a single accidental occurrence of water seepage.

[0088] S230, when it is determined that effective water seepage is detected when the test device performs a pressure loading action on the energy storage exhaust valve, the number of effective leakages is accumulated.

[0089] It can be understood that when it is determined that effective water seepage is detected when the test device performs a pressure loading action on the energy storage exhaust valve, the number of leakage events whose leakage coordinates are within the target range during the test period can be accumulated.

[0090] For example, the number of leakage events during the test period is 6, and the number of leakage events whose leakage coordinates are within the target range during the test period is 4, and the number of leakage events whose leakage coordinates are not within the target range during the test period is 2, then the number of leakage events whose leakage coordinates are within the target range during the test period can be accumulated as 4.

[0091] With this setting, by accumulating the number of effective leakage events, the occurrence trend of effective water seepage during the test period can be monitored in real time, providing data support for subsequent decision-making.

[0092] In a possible implementation, in step S230, when it is determined that effective water seepage is detected during the pressure loading action performed by the test device on the energy storage exhaust valve, before the effective leakage quantity is accumulated, the energy storage exhaust valve waterproof test method further includes: S231, based on the leakage occurrence time and leakage coordinates of the detected leakage flow data corresponding to the number of leakage events, determine whether the number of leakage events meets the preset accumulation requirement. The preset accumulation requirement is that the number of leakage flow data corresponding to the number of leakage events detected within the target range within the set period exceeds the preset number, and the target range is the target radius range with the leakage coordinates corresponding to the leakage flow data detected for the first time within the set period as the reference point.

[0093] It can be understood that the target range can be a radius range determined based on the leak coordinates when the leak flow data is first detected within the set period as the reference point. The target range can be a spherical range, and the leak coordinates within this range are "leak events within the target range". The radius can be a pre-set fixed value, or it can be dynamically adjusted according to the leak flow or the needs of the operator. For each leak event within the set period, check whether its leak coordinates are within the above calculated target range. The specific judgment can be calculated using the formula: distance = , where (x1, y1, z1) is the leakage coordinate of the first leakage event detected, and (x2, y2, z2) is the leakage coordinate of the current leakage event. If the distance is less than or equal to the target radius, the leakage event is within the target range. Within the set time period, count the number of all leakage events that meet the conditions (i.e., leakage events whose leakage coordinates are within the target range, and the number of leakage events whose leakage coordinates are within the target range exceeds the preset number).

[0094] Such a setting can effectively screen out leakage events that meet the conditions, avoid invalid leakage events from affecting the test results, and thus improve the accuracy of the test.

[0095] S232, when it is determined that the number of leakage events meets the preset cumulative requirement, it is determined that effective water seepage is detected when the test device performs a pressure loading action on the energy storage exhaust valve.

[0096] It can be understood that when it is determined that the number of leakage events meets the preset cumulative requirements, it means that the leakage coordinates are within the target range of leakage events, and the number of leakage events with leakage coordinates within the target range exceeds the preset number. Therefore, it can be determined that effective water seepage is detected when the test device performs pressure loading action on the energy storage exhaust valve.

[0097] This arrangement can more accurately determine whether effective water seepage exists, reducing the possibility of misjudgment due to a single accidental occurrence of water seepage.

[0098] S240: Determine the number of valid leakages accumulated during the target period as the number of change events.

[0099] It can be understood that the number of leakage events whose leakage coordinates are within the target range during the test period can be determined as the number of change events.

[0100] For example, the number of leakage events whose leakage coordinates are within the target range during the test period is 4, which is determined as the number of change events.

[0101] With this setting, by accumulating the number of effective leakage events, the occurrence trend of effective water seepage during the test period can be monitored in real time, providing data support for subsequent decision-making.

[0102] S300, determining the number of pressure cycles, wherein the number of pressure cycles is the number of cycle tests of the pressure loading action performed by the test device on the energy storage exhaust valve within the target period.

[0103] It can be understood that during the target period, the pressure cycle is performed according to the set pressure loading program. After each pressure loading action (pressurization, pressure holding, and pressure reduction) is completed, it is considered to have completed a pressure cycle. During the target period, each complete pressure loading action (i.e., a combination of pressurization, pressure holding, and pressure reduction actions) is recorded. After each cycle is completed, the count is increased by 1, and the number of cycles in the entire target period is accumulated to finally obtain the number of pressure cycles.

[0104] For example, if the target period has ended, but the test device is still in the middle of the pressurization, pressure maintenance or decompression stage, the impact of the unfinished pressure cycle on the test results can be analyzed (for example, by comparing the data obtained when the complete pressure cycle was previously completed with the results of the current incomplete test, and by comparing historical data, the degree of deviation of the results caused by the unfinished pressure cycle can be evaluated). If the unfinished cycle has a small impact on the overall test results, it can be stated in the report results that its impact on the accuracy of the final data is negligible. If the unfinished pressure cycle may affect the accuracy of the final results, the report results can propose a request for subsequent testing. For example, it can be recommended to extend the test period or to re-perform a complete pressure cycle.

[0105] Such a setting, by determining the number of cyclic tests of the pressure loading action performed by the test device on the energy storage exhaust valve within the target time period, helps to test the performance of the exhaust valve during multiple cycles, thereby reducing random errors, thereby helping to improve the accuracy of the test results.

[0106] S400, calculating a failure ratio of the number of leakage events to the number of pressure cycles.

[0107] It will be appreciated that the failure ratio may be a ratio between the number of leakage events and the number of pressure cycles.

[0108] This setting can more intuitively display the proportion of leakage events in each pressure cycle, which helps to reflect the performance of the energy storage exhaust valve during the test.

[0109] S500: Determine whether the waterproof performance of the energy storage exhaust valve under test meets the standard according to the pressure information and the failure ratio.

[0110] It can be understood that the maximum pressure change limit that the energy storage exhaust valve should maintain within the specified pressure range is defined. For example, a maximum allowable pressure change range is set, and exceeding this range may mean poor sealing performance. Determine an acceptable failure rate range. For example, a maximum failure rate (such as 5%, 10%, etc.) is set. Exceeding this preset ratio indicates that the waterproof performance does not meet the standard. If the pressure information is stable within the standard pressure range and the failure rate is within the acceptable failure rate range, it is determined that the waterproof performance of the energy storage exhaust valve meets the standard. If the pressure information is stable within the standard pressure range, and the failure rate is lower than the preset ratio, it is determined that the waterproof performance of the energy storage exhaust valve does not meet the standard.

[0111] With such arrangement, whether the waterproof performance of the tested energy storage exhaust valve meets the standard is determined based on multiple factors, including the pressure change of the tested energy storage exhaust valve when it is subjected to fluid in a sealed state within the target period, the amount of effective water seepage detected when the test device implements a pressure loading action on the energy storage exhaust valve within the target period, and the number of cyclic tests of the pressure loading action implemented by the test device on the energy storage exhaust valve within the target period. This avoids the misjudgment that may be caused by a single indicator (such as relying only on pressure), and makes the determination of the waterproof performance more accurate and reliable.

[0112] In a possible implementation, S500, judging whether the waterproof performance of the energy storage exhaust valve under test meets the standard according to the pressure information and the failure ratio, includes: S510: Determine whether the waterproof performance of the energy storage exhaust valve under test meets the standard according to the pressure information and failure rate of each batch in N consecutive test batches, where N is a positive integer greater than 1.

[0113] It can be understood that N test batches can be the number of consecutive test batches, and N is greater than 1, that is, at least two batches of tests are performed. Traverse each batch (a total of N), the corresponding pressure information and failure rate, if the failure rate of all batches is lower than the preset rate, and the pressure information reflects that the proportion of the pressure maintenance period is high (for example, higher than 70%), then the waterproof performance can be considered qualified. If the failure rate of any batch exceeds the preset rate, or the pressure information reflects that the proportion of the pressure maintenance period is low, the waterproof performance is judged to be substandard.

[0114] This setting can reduce the impact of single test errors by conducting comprehensive analysis of test data from multiple batches. If only one test batch has a high failure rate or abnormal pressure information, the overall judgment may be affected. Multiple tests can provide more representative and stable conclusions, helping to ensure a more accurate assessment of waterproof performance.

[0115] In a possible implementation, S510, judging whether the waterproof performance of the energy storage exhaust valve under test meets the standard according to the pressure information and failure rate of each batch in N consecutive test batches, includes: S511, when the value of the pressure information of each batch in N consecutive test batches exceeds the target value and the failure rate exceeds the preset rate, it is determined that the waterproof performance of the energy storage exhaust valve under test does not meet the standard.

[0116] It can be understood that the value of the pressure information can be the proportion of the pressure maintenance period, for example, the value of the pressure information = the pressure maintenance period ÷ the pressure change period. When the value of the pressure information of each batch in N consecutive test batches exceeds the target value, and the failure rate exceeds the preset rate, it means that the waterproof performance is unqualified, that is, it is determined that the waterproof performance of the energy storage exhaust valve under test does not meet the standard.

[0117] With this setup, comprehensive analysis of multiple batches of test data can reduce the impact of single test errors and help ensure a more accurate assessment of waterproof performance.

[0118] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0119] Corresponding to the energy storage exhaust valve waterproof test method described in the above embodiment, the embodiment of the present application also provides an energy storage exhaust valve waterproof test system, and each unit of the system can implement each step of the energy storage exhaust valve waterproof test method. Figure 4 A structural block diagram of an energy storage exhaust valve waterproof test system provided in an embodiment of the present application is shown. For ease of explanation, only the parts related to the embodiment of the present application are shown.

[0120] Reference Figure 4 , the energy storage exhaust valve waterproof test system includes: The acquisition unit is used to acquire pressure information within a target period of time. The pressure information is used to indicate the pressure change of the energy storage exhaust valve under test when it is subjected to fluid in a sealed state, and the sealed state is a state in which the pressure test equipment applies a predetermined sealing force to the energy storage exhaust valve.

[0121] The monitoring unit is used to obtain the number of change events. The number of change events is the number of effective water seepage detected when the test device performs a pressure loading action on the energy storage exhaust valve within the target period. A complete pressure loading action includes a pressurization action, a pressure holding action, and a pressure reduction action.

[0122] The determination unit is used to determine the number of pressure cycles, wherein the number of pressure cycles is the number of cycle tests of the pressure loading action performed by the test device on the energy storage exhaust valve within the target period.

[0123] Calculation unit for calculating the failure ratio of the number of leakage events to the number of pressure cycles.

[0124] The judgment unit is used to judge whether the waterproof performance of the energy storage exhaust valve under test meets the standard according to the pressure information and the failure ratio.

[0125] It should be noted that the information interaction, execution process, etc. between the above-mentioned systems / units are based on the same concept as the method embodiment of the present application. Their specific functions and technical effects can be found in the method embodiment part and will not be repeated here.

[0126] Those skilled in the art can clearly understand that, for the convenience and simplicity of description, only the division of the above-mentioned functional units is used as an example for illustration. In practical applications, the above-mentioned functions can be assigned to different functional units as needed, that is, the internal structure of the system can be divided into different functional units to complete all or part of the functions described above. The functional units in the embodiment can be integrated into a processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0127] The present application also provides a fully automatic water spray test device. Figure 5 This is a schematic diagram of the structure of the control device of the fully automatic water spray test equipment provided in one embodiment of the present application. Figure 5 As shown, the control device 6 of this embodiment includes: at least one processor 60 ( Figure 5 Only one is shown), at least one memory 61 ( Figure 5 Only one is shown in the figure) and a computer program 62 stored in the at least one memory 61 and executable on the at least one processor 60. When the processor 60 executes the computer program 62, the control device 6 implements the steps in any of the above-mentioned energy storage exhaust valve waterproof test method embodiments, or the control device 6 implements the functions of the units in the above-mentioned system embodiments.

[0128] Exemplarily, the computer program 62 may be divided into one or more units, which are stored in the memory 61 and executed by the processor 60 to complete the present application. The one or more units may be a series of computer program instruction segments capable of completing specific functions, which are used to describe the execution process of the computer program 62 in the control device 6.

[0129] The fully automatic water spray test equipment may include a pressure testing device, a test device and a control device 6. The control device 6 is electrically connected to the pressure testing device and the test device, respectively. The energy storage exhaust valve can be installed on a pressure testing device (for example, a gas compressor or a liquid pump, etc.) so that the pressure testing device applies a predetermined sealing force (torque, mechanical fastening force) to the energy storage exhaust valve to simulate the installation conditions in actual use, and the pressure testing device can deliver a fluid of a certain pressure to the energy storage exhaust valve to test the pressure change of the energy storage exhaust valve when it is subjected to the fluid in a sealed state, and send the test results to the control device 6. The test device (for example, a waterproof performance tester, a water spray tester, etc.) can be equipped with multiple adjustable nozzles, which can simulate water spraying at different pressures to monitor the waterproof condition of the tested product (energy storage exhaust valve), such as water penetration, humidity, temperature, etc., and send the monitoring information to the control device 6. The control device 6 can determine whether the waterproof performance of the tested energy storage exhaust valve meets the standard based on the obtained pressure information and failure rate. The fully automatic water spray test equipment may include, but is not limited to, a processor 60 and a memory 61. Those skilled in the art can understand that Figure 5 It is only an example of the control device 6 and does not constitute a limitation on the control device 6. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, it may also include input and output devices, network access devices, buses, etc.

[0130] The processor 60 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0131] In some embodiments, the memory 61 may be an internal storage unit of the control device 6, such as a hard disk or memory of the control device 6. In other embodiments, the memory 61 may also be an external storage device of the control device 6, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the control device 6. Further, the memory 61 may also include both an internal storage unit and an external storage device of the control device 6. The memory 61 is used to store an operating system, an application program, a boot loader (BootLoader), data, and other programs, such as the program code of the computer program. The memory 61 may also be used to temporarily store data that has been output or is to be output.

[0132] An embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in any of the above method embodiments are implemented.

[0133] An embodiment of the present application provides a computer program product. When the computer program product is run on a fully automatic water spray test device, the fully automatic water spray test device can implement the steps in any of the above method embodiments.

[0134] If the integrated unit is implemented in the form of 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 present application implements all or part of the processes in the above-mentioned embodiment method, which can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium can at least include: any entity or device that can carry the computer program code to the fully automatic water spray test equipment, recording medium, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, RandomAccess Memory), electrical carrier signal, telecommunication signal and software distribution medium. For example, a USB flash drive, a mobile hard disk, a disk or an optical disk.

[0135] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0136] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example 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 performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0137] In the embodiments provided in the present application, it should be understood that the disclosed fully automatic water spray test equipment, energy storage exhaust valve waterproof test system and energy storage exhaust valve waterproof test method can be implemented in other ways. For example, the above-described fully automatic water spray test equipment and energy storage exhaust valve waterproof test system embodiments are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0138] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0139] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A method for testing the water resistance of an energy storage exhaust valve, characterized in that: The method comprises: Obtaining pressure information within a target period; wherein the pressure information is used to indicate the pressure change of the energy storage exhaust valve under test when it is subjected to a fluid in a sealed state, wherein the sealed state is a state in which the pressure test equipment applies a predetermined sealing force to the energy storage exhaust valve; Obtaining the number of change events; wherein the number of change events is the number of effective water seepages detected when the test device performs a pressure loading action on the energy storage exhaust valve within the target time period; a complete pressure loading action includes a pressurizing action, a pressure maintaining action, and a pressure reducing action; Determine the number of pressure cycles; wherein the number of pressure cycles is the number of cycle tests of the pressure loading action performed by the test device on the energy storage exhaust valve within the target time period; Calculate the failure ratio of the number of leak events to the number of pressure cycles; According to the pressure information and the failure ratio, it is determined whether the waterproof performance of the energy storage exhaust valve under test meets the standard.

2. The energy storage exhaust valve waterproof test method according to claim 1, characterized in that: Obtain pressure information during the target period, including: Record the pressure maintenance period; wherein the pressure maintenance period is the cumulative period during which the pressure of the energy storage exhaust valve in the sealed state remains stable within the target pressure range within the target period; Obtaining a pressure change period; wherein the pressure change period is a cumulative period during which the pressure of the energy storage exhaust valve in a sealed state is within a target pressure range and periodic pressure changes occur within a target period; The pressure information is determined according to the pressure maintenance period and the pressure change period.

3. The energy storage exhaust valve waterproof test method according to claim 2, characterized in that: Record the period of pressure maintenance, including: During the test, determining whether the energy storage exhaust valve is in the sealing state; When it is determined that the energy storage exhaust valve is in the sealing state, calculating the pressure change rate according to the acquired pressure data; If the pressure change rate is less than a preset threshold, the start time and end time of the current pressure unchanged are recorded; The accumulated time during which all pressures remain unchanged within the target period is determined as the pressure maintenance period.

4. The energy storage exhaust valve waterproof test method according to claim 2, characterized in that: Get the pressure change period, including: When it is determined that the energy storage exhaust valve is in the sealed state, determining whether the pressure of the energy storage exhaust valve undergoes periodic pressure changes according to the pressure data; When it is determined that the pressure of the energy storage exhaust valve undergoes periodic pressure changes, the start time and end time of the current pressure change are recorded; The accumulated time of all pressure changes within the target period is determined as the pressure change period.

5. The energy storage exhaust valve waterproof test method according to claim 4, characterized in that: In the case where it is determined that the energy storage exhaust valve is in the sealing state, after determining whether the pressure of the energy storage exhaust valve undergoes periodic pressure changes according to the pressure data, the method further includes: Detecting whether the pressure change meets the periodicity requirement according to the pressure data; wherein the periodicity requirement is that the number of target pressure data among the multiple pressure data obtained exceeds a preset number, and the target pressure data number is the number of the most recent pressure data whose harmonic component values ​​of the maximum pressure data and the minimum pressure data exceed a preset value, or the number of the most recent pressure data whose acquisition time interval between the maximum pressure data and the minimum pressure data is less than a set time interval; When the pressure change detected according to the pressure data meets the periodic requirement, it is determined that the pressure of the energy storage exhaust valve undergoes a periodic pressure change.

6. The energy storage exhaust valve waterproof test method according to claim 1, characterized in that: Get the number of change events, including: During the test, whenever leakage flow data is detected, the number of leakage events, the time when the leakage of the leakage flow data is detected, and the leakage coordinates corresponding to the leakage flow data are obtained; Based on the leakage occurrence time of the detected leakage flow data corresponding to the number of leakage events and the leakage coordinates, determining whether effective water seepage is detected when the pressure loading action performed by the testing device on the energy storage exhaust valve; When it is determined that effective water seepage is detected during the pressure loading action performed by the testing device on the energy storage exhaust valve, the effective leakage quantity is accumulated; The cumulative number of effective leakages within the target period is determined as the number of change events.

7. The energy storage exhaust valve waterproof test method according to claim 6, characterized in that: When it is determined that effective water seepage is detected during the pressure loading action performed by the test device on the energy storage exhaust valve, before accumulating the number of effective leakages, the method further includes: Based on the leakage occurrence time of the detected leakage flow data corresponding to the number of leakage events and the leakage coordinates, determine whether the number of leakage events meets the preset accumulation requirement; wherein the preset accumulation requirement is that the number of leakage flow data corresponding to the number of leakage events detected within a target range within a set time period exceeds a preset number, and the target range is a target radius range with the leakage coordinates corresponding to the leakage flow data detected for the first time within the set time period as a reference point; When it is determined that the number of leakage events meets the preset cumulative requirement, it is determined that effective water seepage is detected when the test device performs a pressure loading action on the energy storage exhaust valve.

8. The energy storage exhaust valve waterproof test method according to claim 1, characterized in that: Determining whether the waterproof performance of the energy storage exhaust valve under test meets the standard according to the pressure information and the failure ratio includes: According to the pressure information and the failure rate of each batch in N consecutive test batches, it is determined whether the waterproof performance of the energy storage exhaust valve under test meets the standard; wherein N is a positive integer greater than 1.

9. The energy storage exhaust valve waterproof test method according to claim 8, characterized in that: Determining whether the waterproof performance of the energy storage exhaust valve under test meets the standard according to the pressure information and the failure rate of each batch in a plurality of consecutive test batches includes: When the value of the pressure information of each batch in N consecutive test batches exceeds the target value and the failure rate exceeds the preset rate, it is determined that the waterproof performance of the energy storage exhaust valve being tested does not meet the standard.

10. A fully automatic water spray test equipment, characterized in that: The method comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method according to any one of claims 1 to 9 when executing the computer program.

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