New energy control valve dynamic response speed test system

The new energy control valve dynamic response speed testing system performs multi-condition testing from two dimensions: valve core displacement and valve pressure. This solves the problem that existing equipment cannot comprehensively evaluate the dynamic response speed of control valves, and achieves efficient and accurate test results and operational adaptability assessment.

CN120907809APending Publication Date: 2025-11-07ANHUI GAOJIAN MASCH TECH CO LTD
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Patent Information

Application Number
CN202511125645.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-12
Publication Date
2025-11-07

AI Technical Summary

Technical Problem

Existing control valve testing equipment cannot perform dynamic response speed testing under multiple operating conditions, and the parameter measurement is singular, failing to capture the phased characteristics of the valve core movement process.

Method used

A dynamic response speed testing system for new energy control valves is designed. The system consists of an intelligent testing center, a testing preparation unit, a displacement testing unit, a valve pressure testing unit, and a multi-condition testing unit. The system tests the response speed from two dimensions: valve core displacement and valve pressure. The system combines multi-dimensional data cross-validation to achieve full-chain verification.

Benefits of technology

It improves the reliability and validity of test results, can accurately evaluate the dynamic response performance of control valves under different operating conditions, and provides test labels for single or multiple operating conditions to ensure that control valves adapt to the dynamic response speed under different operating conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of new energy, in particular to a new energy control valve dynamic response speed test system which comprises an intelligent test center, a test preparation unit, a test acquisition unit, a displacement test unit, a valve pressure test unit, a multi-working-condition test unit and a test visual unit. According to the method, the test preparation condition and the test control mode of the tested control valve are analyzed, on one hand, whether preparation work before test reaches the standard is determined, on the other hand, the test control mode is determined, and on the premise that the test preparation is qualified, response speed test analysis is conducted from the two dimensions of valve element displacement and valve pressure; the method comprises the following steps of: performing joint analysis on downstream pressure and valve core displacement, evaluating the dynamic response performance of the valve through multi-dimensional data cross validation so as to improve the credibility of a test result, and testing from the perspective of different working conditions on the premise that the dynamic response speed of the valve is qualified so as to obtain a single-working-condition test label or a multi-working-condition test label.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of new energy, in particular to a new energy control valve dynamic response speed test system. BACKGROUND

[0002] In the field of new energy technology, the control valve is a key regulating component of fluid medium (such as coolant, hydraulic oil, hydrogen, refrigerant, etc.), and its dynamic response speed directly affects the operating efficiency, safety and stability of the system; for example, the coolant control valve of the battery pack of a new energy vehicle needs to respond to temperature change signals within milliseconds to quickly adjust the flow to avoid battery overheating; the emergency shut-off valve of a hydrogen energy system needs to be closed instantly under abnormal conditions to prevent hydrogen leakage and cause safety accidents; therefore, it is crucial to accurately test the dynamic response speed of the new energy control valve.

[0003] At present, the existing control valve test equipment has the following shortcomings: limited working condition simulation: lacking of multi-condition test analysis process, it is difficult to analyze the dynamic response speed of the control valve under multi-condition; single parameter measurement: only the total response time of the valve opening or closing can be measured, and the stage characteristics in the valve core movement process cannot be captured.

[0004] In view of the above technical defects, a solution is proposed. SUMMARY

[0005] The purpose of the present application is to provide a new energy control valve dynamic response speed test system to solve the above technical defects. The present application analyzes the test preparation conditions and test control methods of the measured control valve, confirms whether the preparation work before the test meets the standard, and based on the premise that the test preparation is qualified, tests and analyzes the response speed from the valve core displacement and valve pressure dimensions to improve the credibility of the test results. Based on the premise that the valve dynamic response speed is qualified, test from the perspective of different working conditions to divide the working conditions of the measured control valve and obtain single working condition test label or multiple working condition test label.

[0006] The purpose of the present application can be realized by the following technical scheme: a new energy control valve dynamic response speed test system, comprising an intelligent test center, a test preparation unit, a test acquisition unit, a displacement test unit, a valve pressure test unit, a multi-condition test unit and a test visualization unit.

[0007] The intelligent test center is used to collect and store the connection information of each test component.

[0008] The test preparation unit is used to analyze the test preparation conditions of the retrieved connection information of each test component, and obtain unqualified signals or qualified signals. When the qualified signal is generated, the control method of the measured control valve is discriminated to obtain non-voltage signal or voltage signal.

[0009] The test acquisition unit is used for acquiring the associated data of the measured control valve and sending to the intelligent test center for storage;

[0010] The displacement test unit is used for analyzing the valve core displacement response of the acquired associated data, obtaining the qualified signal or unqualified signal;

[0011] The valve pressure test unit is used for valve pressure response test and fusion feedback analysis of the associated data, obtaining the response qualified signal or unqualified signal;

[0012] The generated qualified signal and response qualified signal are fused and analyzed to obtain the test qualified signal or test unqualified signal;

[0013] When the test qualified signal is generated, the multi-working condition test unit is used for multi-working condition response test analysis of the working condition parameters of the measured control valve, obtaining the single-working condition test label or multi-working condition test label.

[0014] Preferably, the test condition preparation analysis process is as follows:

[0015] The connection information of each test component is acquired, including connection qualified and connection unqualified, and the connection information of each test component is processed one by one to obtain the unqualified signal or qualified signal;

[0016] When the qualified signal is generated, the measured control valve is installed, and the working condition parameters of the measured control valve are set, including pressure, medium, and temperature;

[0017] The control mode of the measured control valve is obtained at the same time, including PWM control and voltage control, and the control mode of the measured control valve is processed to obtain the non-voltage signal or voltage signal.

[0018] Preferably, the analysis process of the displacement test unit is as follows:

[0019] E1 stroke point and E2 stroke point are marked on the rated stroke of the valve core displacement, wherein the E1 stroke point represents k1% of the rated stroke, k1%>0, and the E2 stroke point represents k2% of the rated stroke, k2%>k1%;

[0020] Based on the associated data, the opening delay time Tkn, the opening response time TXn, the closing delay time GBn, and the closing response time GXn of each measured control valve are obtained;

[0021] The opening delay time Tkn represents the time length between the T0 moment of the opening signal of each acquisition and the first time the spool displacement of the measured control valve reaches the E1 stroke point; the opening response time TXn represents the time length between the T0 moment of the opening signal of each acquisition and the first time the spool displacement of the measured control valve reaches the E2 stroke point; the closing delay time GBn represents the time length between the moment of generating the closing signal of each acquisition and the time the spool displacement of the measured control valve reaches the E2 stroke point; and the closing response time GXn represents the time length between the moment of generating the closing signal of each acquisition and the time the spool displacement of the measured control valve reaches the E1 stroke point.

[0022] Preferably, the maximum and minimum values of the opening delay time Tkn, the opening response time TXn, the closing delay time GBn and the closing response time GXn are obtained, and the opening delay time interval, the opening response time interval, the closing delay time interval and the closing response time interval are constructed based on the maximum and minimum values, and the opening delay time interval, the opening response time interval, the closing delay time interval and the closing response time interval are processed one by one to obtain the qualified signal or the unqualified signal.

[0023] Preferably, the analysis process of the valve pressure test unit is as follows:

[0024] The key feature points are obtained based on the pressure-time curve in the correlation data, and the key feature points include the initial pressure P0, the target pressure P1, the k1% pressure point and the k2% pressure point.

[0025] The pressure delay time KLn and the pressure response time KJn in the opening process of the measured control valve are obtained.

[0026] The pressure delay time GLn and the pressure response time GJn in the closing process of the measured control valve are obtained.

[0027] The mean value and the standard deviation of the pressure delay time KLn, the pressure response time KJn, the pressure delay time GLn and the pressure response time GJn in the opening process and the closing process of the measured control valve are calculated to obtain the opening time parameter of the opening process of the measured control valve and the closing time parameter of the closing process of the measured control valve.

[0028] The pressure delay time KLn represents the time length between the T0 moment of the opening signal of each acquisition and the moment of the k1% pressure point; the pressure response time KJn represents the time length between the T0 moment of the opening signal of each acquisition and the moment of the k2% pressure point; the pressure delay time GLn represents the time length between the moment of generating the closing signal of each acquisition and the moment of the k2% pressure point; and the pressure response time GJn represents the time length between the moment of generating the closing signal of each acquisition and the moment of the k1% pressure point.

[0029] Preferably, the opening time parameter comprises the mean value of the pressure delay time KLn and the standard deviation of the pressure delay time KJn in the opening process; and the closing time parameter comprises the mean value of the pressure delay time GLn and the standard deviation of the pressure response time GJn in the closing process.

[0030] Preferably, the opening time parameter and the closing time parameter are subjected to a discrimination process to obtain a response qualified signal or a response unqualified signal.

[0031] The generated compliance signal and the response qualified signal are subjected to fusion analysis, and if the compliance signal and the response qualified signal are generated simultaneously, a test qualified signal is obtained, and if the compliance signal and the response qualified signal are not generated simultaneously, a test unqualified signal is obtained.

[0032] Preferably, the analysis process of the multi-working condition test unit is as follows:

[0033] The working condition parameters of the g measured control valves are adjusted, g is a natural number greater than zero, and the test is performed again based on the adjusted working condition parameters of the measured control valve each time, and the fusion analysis output results of the compliance signal and the response qualified signal obtained in each working condition are obtained, and the output results comprise a test qualified signal or a test unqualified signal.

[0034] The proportion of the test qualified signal based on the output results of the fusion analysis is obtained, and the proportion of the test qualified signal is set as a test qualified rate, and a test deviation signal or a test effective signal is obtained.

[0035] When the test deviation signal is generated, a single working condition test label of the measured control valve is obtained.

[0036] When the test effective signal is generated, a multi-working condition test label of the measured control valve is obtained.

[0037] The beneficial effects of the present application are as follows:

[0038] (1) The present application analyzes the test preparation conditions and the test control mode of the measured control valve, determines whether the preparation work before the test is qualified, and determines the control mode of the test, so as to improve the test effectiveness and reliability of the measured control valve.

[0039] (2) Based on the premise that the test preparation is qualified, the response speed test analysis is performed from two dimensions of valve core displacement and valve pressure, that is, the valve pressure and the valve core displacement are jointly analyzed, the valve dynamic response performance is evaluated through multi-dimensional data cross verification, the whole chain verification from "mechanical action (valve core displacement)" to "fluid effect (valve pressure)" is realized, and the credibility of the test result is improved.

[0040] (3) based on the premise of the valve dynamic response speed qualified, from the perspective of different working conditions, in order to test the measured control valve working condition test division, get a single working condition test label or multiple working condition test label, in order to intuitively understand whether the measured control valve is suitable for different working conditions, at the same time, understand whether the dynamic response speed of the measured control valve is qualified. BRIEF DESCRIPTION OF DRAWINGS

[0041] The application will be further described below with reference to the drawings;

[0042] Fig. 1 is the system flow chart of the application;

[0043] Fig. 2 is the reference analysis diagram of the application. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the application.

[0045] In this paper, "embodiment" means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the application. The phrase appears at various places in the specification does not necessarily refer to the same embodiment, nor is it independent or alternative to other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments;

[0046] Embodiment one:

[0047] Please refer to Figs. 1-2 The application is a new energy control valve dynamic response speed test system, which comprises an intelligent test center, a test preparation unit, a test acquisition unit, a displacement test unit, a valve pressure test unit, a multi-working condition test unit and a test visual unit. The intelligent test center is in bidirectional communication connection with the test acquisition unit, and in unidirectional communication connection with the test preparation unit and the displacement test unit. The displacement test unit is in unidirectional communication connection with the valve pressure test unit and the multi-working condition test unit. The valve pressure test unit and the multi-working condition test unit are in unidirectional communication connection with the test visual unit. The test preparation unit is in unidirectional communication connection with the test visual unit.

[0048] The intelligent test center is used for collecting and storing the connection information of each test component.

[0049] The test preparation unit is used for pre-test condition preparation analysis on the connection information of each test component, and judges whether the pre-test preparation of the control valve to be tested is qualified or not. The specific pre-test condition preparation analysis process is as follows:

[0050] The connection information of each test component (fluid pipeline, sensor, etc.) is collected, the connection information includes connection qualification and connection disqualification, and each test component is discriminated one by one. If there is connection information disqualification, a disqualification signal is generated, and if there is no connection information disqualification, a qualification signal is generated. The test visual unit is used to respond to the disqualification signal and immediately mark the test component corresponding to the disqualification signal, so as to timely manage the marked test component corresponding to the disqualification signal, so as to ensure the effective test.

[0051] When the qualification signal is generated, the control valve to be tested is installed, and the working condition parameters of the control valve to be tested are set, including pressure, medium, temperature, etc.

[0052] At the same time, the control mode of the control valve to be tested is obtained, including PWM control and voltage control, and the control mode of the control valve to be tested is discriminated. If the control mode is PWM control, a non-voltage signal is generated, and if the control mode is voltage control, a voltage signal is generated. The test visual unit is used to respond to the non-voltage signal or the voltage signal and immediately make a preset warning operation corresponding to the non-voltage signal or the voltage signal, so as to reasonably set the control parameters based on the control mode of the control valve to be tested.

[0053] The test acquisition unit is used to acquire the associated data of the control valve to be tested and send it to the intelligent test storage.

[0054] The acquisition process of the test acquisition unit is as follows:

[0055] The time reference zero point is set, the T0 moment of the control instruction controlling the opening signal of the control valve to be tested is obtained based on the set time reference zero point, and the associated data of the control instruction is collected at the same time. The associated data includes the valve core displacement curve of the control valve to be tested, the fluid pressure curve, etc.

[0056] After the opening signal lasts for t1 time, t1>0, a closing signal is generated. After the closing signal is generated, the associated data is continuously collected until the closing signal ends.

[0057] After the interval t2 time, the control instruction is triggered again to test and sample the control valve to be tested, t2>t1, and the collection is repeated n times, n>3.

[0058] Embodiment two:

[0059] The displacement test unit is used for valve core displacement response evaluation analysis on the collected correlation data, and the specific valve core displacement response evaluation analysis process is as follows:

[0060] E1 stroke point and E2 stroke point are marked on the rated stroke of the valve core displacement, wherein the E1 stroke point represents k1% of the rated stroke (k1% is artificially set as a value, k1%>0), and the E2 stroke point represents k2% of the rated stroke (k2% is artificially set as a value, k2%>k1%);

[0061] Based on the correlation data, the opening delay time Tkn (the time length between the T0 moment of the opening signal and the first time when the valve core displacement of the measured control valve reaches the E1 stroke point), the opening response time TXn (the time length between the T0 moment of the opening signal and the first time when the valve core displacement of the measured control valve reaches the E2 stroke point), the closing delay time GBn (the time length between the moment when the closing signal is generated and the time when the valve core displacement of the measured control valve reaches the E2 stroke point), and the closing response time GXn (the time length between the moment when the closing signal is generated and the time when the valve core displacement of the measured control valve reaches the E1 stroke point) of each measured control valve are obtained;

[0062] The maximum and minimum values of the opening delay time Tkn, the opening response time TXn, the closing delay time GBn, and the closing response time GXn are obtained, and the opening delay time interval, the opening response time interval, the closing delay time interval, and the closing response time interval are constructed based on the maximum and minimum values. The opening delay time interval, the opening response time interval, the closing delay time interval, and the closing response time interval are processed one by one, if the opening delay time interval, the opening response time interval, the closing delay time interval, and the closing response time interval are all contained in the corresponding preset interval one by one, a qualified signal is generated, if the opening delay time interval, the opening response time interval, the closing delay time interval, and the closing response time interval are not all contained in the corresponding preset interval one by one, a non-qualified signal is generated;

[0063] The valve pressure test unit is used for valve pressure response test and fusion feedback analysis on the correlation data, and the specific valve pressure response test and fusion feedback analysis process is as follows:

[0064] Based on the pressure-time curve in the correlation data, key feature points are obtained, including initial pressure P0, target pressure P1, k1% pressure point, and k2% pressure point;

[0065] The pressure delay time KLn (the time length between the T0 moment of the opening signal and the moment when the k1% pressure point is reached) and the pressure response time KJn (the time length between the T0 moment of the opening signal and the moment when the k2% pressure point is reached) in the opening process of the measured control valve are obtained;

[0066] Obtaining the pressure delay time GLn (the time length between the moment of generating the closing signal and the moment of k2% pressure point), the pressure response time GJn (the time length between the moment of generating the closing signal and the moment of k1% pressure point) and the like in the closing process of the measured control valve;

[0067] The pressure delay time KLn, the pressure response time KJn, the pressure delay time GLn and the pressure response time GJn in the opening process and the closing process of the measured control valve are subjected to mean value calculation and standard deviation calculation, so as to obtain the opening time parameter of the opening process of the measured control valve and the closing time parameter of the closing process of the measured control valve;

[0068] The opening time parameter includes the mean value of the pressure delay time KLn and the standard deviation of the pressure delay time KJn in the opening process;

[0069] The closing time parameter includes the mean value of the pressure delay time GLn and the standard deviation of the pressure response time GJn in the closing process;

[0070] The opening time parameter and the closing time parameter are subjected to discriminant processing, if the opening time parameter is less than a preset threshold value, and the closing time parameter is less than a preset threshold value, a response qualified signal is generated, if the opening time parameter is greater than or equal to a preset threshold value, or the closing time parameter is greater than or equal to a preset threshold value, a response unqualified signal is generated;

[0071] The generated qualified signal and the response qualified signal are subjected to fusion analysis, if the qualified signal and the response qualified signal are generated at the same time, a test qualified signal is obtained, if the qualified signal and the response qualified signal are not generated at the same time, a test unqualified signal is obtained, the test visual unit is used for responding to the test qualified signal or the test unqualified signal, and immediately displays preset warning words corresponding to the test qualified signal or the test unqualified signal, so that whether the dynamic response speed of the measured control valve is qualified can be intuitively understood;

[0072] The valve post pressure and the valve core displacement are jointly analyzed, the valve dynamic performance is evaluated through multi-dimensional data cross verification, the key method for solving the limitation of single parameter and comprehensively reflecting the actual working state of the valve is realized, that is, the whole chain verification from the mechanical action (valve core displacement) to the fluid effect (valve post pressure) is realized, so as to improve the credibility of the test result.

[0073] Embodiment three:

[0074] When the test qualified signal is generated, the multi-working condition test unit is used for multi-working condition response test analysis on the collected working condition parameters of the measured control valve, and the specific multi-working condition response test analysis process is as follows:

[0075] Adjusting the working condition parameters of the g measured control valves, g is a natural number greater than zero, based on the working condition parameters of each adjustment of the measured control valve, the test is carried out again, the fusion analysis output result of the test qualified signal and the response qualified signal obtained in each working condition is obtained, and the output result includes a test qualified signal or a test unqualified signal;

[0076] Based on the output result of the fusion analysis, the proportion of the test qualified signal is obtained, and the proportion of the test qualified signal is set as the test qualified rate, and the test qualified rate is judged, if the test qualified rate is less than the preset test qualified rate threshold, a test deviation signal is generated, if the test qualified rate is greater than or equal to the preset test qualified rate threshold, a test effective signal is generated;

[0077] When the test deviation signal is generated, the single working condition test label of the measured control valve is obtained;

[0078] When the test effective signal is generated, the multi-working condition test label of the measured control valve is obtained;

[0079] The test visual unit is used to respond to the single working condition test label or the multi-working condition test label, and immediately displays the single working condition test label or the multi-working condition test label, so as to intuitively understand whether the measured control valve is suitable for different working conditions, and whether the dynamic response speed of the measured control valve is qualified;

[0080] In summary, the present application analyzes the test preparation conditions and test control mode of the measured control valve, determines whether the preparation work before the test is qualified, and determines the control mode of the test, so as to improve the test effectiveness and reliability of the measured control valve, based on the premise that the test preparation is qualified, the response speed test analysis is carried out from two dimensions of valve core displacement and valve pressure, that is, the valve core displacement and valve pressure are analyzed jointly, the valve dynamic response performance is evaluated through multi-dimensional data cross verification, the whole chain verification from "mechanical action (valve core displacement)" to "fluid effect (valve pressure)" is realized, the credibility of the test result is improved, based on the premise that the valve dynamic response speed is qualified, the test is carried out from the perspective of different working conditions, so as to divide the working condition test of the measured control valve, obtain the single working condition test label or the multi-working condition test label, and intuitively understand whether the measured control valve is suitable for different working conditions, and whether the dynamic response speed of the measured control valve is qualified.

[0081] The threshold is set for result comparison and analysis, so as to determine whether it is good or bad, and the size of the threshold is determined according to the large model analysis of sample data and artificial experience, and is set to be recorded and stored, and can be appropriately adjusted through seasonal or rational influence conditions.

[0082] The size of the coefficient is a specific value obtained by quantizing each parameter, facilitating subsequent comparison. The size of the coefficient depends on the number of sample data and the corresponding running coefficient preliminarily set by the person skilled in the art for each group of sample data; as long as it does not affect the proportional relationship between the parameter and the quantized value.

[0083] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical range disclosed by the present application, according to the technical solution and the inventive concept of the present application, can be equivalent to replace or change, which should be covered within the protection scope of the present application.

Claims

1. A new energy control valve dynamic response speed test system, characterized in that, The intelligent test center, the test preparation unit, the test acquisition unit, the displacement test unit, the valve pressure test unit, the multi-working condition test unit and the test visual unit are included. The intelligent test center is used for collecting connection information of each test component and storing; The test preparation unit is used for performing pre-test condition preparation analysis on the collected connection information of each test component to obtain an unqualified signal or a qualified signal, and when the qualified signal is generated, performing discrimination processing on the obtained control mode of the tested control valve to obtain a non-voltage signal or a voltage signal; The test acquisition unit is used for collecting associated data of the tested control valve and sending the associated data to the intelligent test center for storage; The displacement test unit is used for performing valve core displacement response evaluation analysis on the collected associated data to obtain a standard signal or a non-standard signal; The valve pressure test unit is used for performing valve pressure response test and fusion feedback analysis on the associated data to obtain a response qualified signal or a response unqualified signal; The generated standard signal and the response qualified signal are fused and analyzed to obtain a test qualified signal or a test unqualified signal; When the test qualified signal is generated, the multi-working condition test unit is used for performing multi-working condition response test analysis on the collected working condition parameters of the tested control valve to obtain a single-working condition test label or a plurality of working condition test labels.

2. The dynamic response speed test system of a new energy control valve according to claim 1, characterized in that, The pre-test condition preparation analysis process is as follows: The connection information of each test component is collected, the connection information includes connection qualification and connection unqualification, and the connection information of each test component is discriminated one by one to obtain an unqualified signal or a qualified signal; When the qualified signal is generated, the tested control valve is installed, and the working condition parameters of the tested control valve are set, the working condition parameters include pressure, medium and temperature; Meanwhile, the control mode of the tested control valve is obtained, the control mode includes PWM control and voltage control, and the control mode of the tested control valve is discriminated to obtain a non-voltage signal or a voltage signal.

3. The dynamic response speed test system of a new energy control valve according to claim 1, characterized in that, The analysis process of the displacement test unit is as follows: E1 stroke point and E2 stroke point are marked on the rated stroke of the valve core displacement, wherein the E1 stroke point represents k1% of the rated stroke, k1%>0, and the E2 stroke point represents k2% of the rated stroke, k2%>k1%; Based on the associated data, the opening delay time Tkn, the opening response time TXn, the closing delay time GBn and the closing response time GXn of each tested control valve are obtained; The opening delay time Tkn represents the time length between the T0 moment of each collected opening signal and the first time when the valve core displacement of the tested control valve reaches the E1 stroke point; the opening response time TXn represents the time length between the T0 moment of each collected opening signal and the first time when the valve core displacement of the tested control valve reaches the E2 stroke point; the closing delay time GBn represents the time length between the moment when each collected closing signal is generated and the time when the valve core displacement of the tested control valve reaches the E2 stroke point; and the closing response time GXn represents the time length between the moment when each collected closing signal is generated and the time when the valve core displacement of the tested control valve reaches the E1 stroke point.

4. The dynamic response speed test system of a new energy control valve according to claim 3, characterized in that, The maximum and minimum values of the opening delay time Tkn, the opening response time TXn, the closing delay time GBn, and the closing response time GXn are obtained, and the opening delay time interval, the opening response time interval, the closing delay time interval, and the closing response time interval are constructed based on the maximum and minimum values, and the opening delay time interval, the opening response time interval, the closing delay time interval, and the closing response time interval are discriminated one by one to obtain a qualified signal or an unqualified signal.

5. The dynamic response speed test system of a new energy control valve according to claim 1, characterized in that, The analysis process of the valve pressure test unit is as follows: The key feature points are obtained based on the pressure-time curve in the correlation data, and the key feature points include the initial pressure P0, the target pressure P1, the k1% pressure point, and the k2% pressure point; The pressure delay time KLn and the pressure response time KJn in the opening process of the measured control valve are obtained; The pressure delay time GLn and the pressure response time GJn in the closing process of the measured control valve are obtained; The mean value and the standard deviation of the pressure delay time KLn, the pressure response time KJn, the pressure delay time GLn, and the pressure response time GJn in the opening process and the closing process of the measured control valve are calculated to obtain the opening time parameter of the opening process of the measured control valve and the closing time parameter of the closing process of the measured control valve; The pressure delay time KLn represents the time length between the T0 moment of each collected opening signal and the k1% pressure point moment; The pressure response time KJn represents the time length between the T0 moment of each collected opening signal and the k2% pressure point moment; the pressure delay time GLn represents the time length between the generated closing signal moment of each collected and the k2% pressure point moment; The pressure response time GJn represents the time length between the generated closing signal moment of each collected and the k1% pressure point moment.

6. The dynamic response speed test system of a new energy control valve according to claim 5, characterized in that, The opening time parameter includes the mean value of the pressure delay time KLn and the standard deviation of the pressure delay time KJn in the opening process; and the closing time parameter includes the mean value of the pressure delay time GLn and the standard deviation of the pressure response time GJn in the closing process.

7. The dynamic response speed test system of a new energy control valve according to claim 6, characterized in that, The opening time parameter and the closing time parameter are discriminated to obtain a response qualified signal or a response unqualified signal; The generated qualified signal and the response qualified signal are fused and analyzed, if the qualified signal and the response qualified signal are generated at the same time, a test qualified signal is obtained, if the qualified signal and the response qualified signal are not generated at the same time, a test unqualified signal is obtained.

8. The dynamic response speed test system of a new energy control valve according to claim 1, characterized in that, The analysis process of the multi-working condition test unit is as follows: The working condition parameters of the g measured control valves are adjusted, g is a natural number greater than zero, the test is performed again based on the working condition parameters of the measured control valve adjusted each time, the output results of the fusion analysis of the qualified signals and the response qualified signals obtained by the test under each working condition are obtained, and the output results include a test qualified signal or a test unqualified signal; The proportion value of the test qualified signal is obtained based on the output results of the fusion analysis, and the proportion value of the test qualified signal is set as a test qualified rate to obtain a test deviation signal or a test effective signal; When the test deviation signal is generated, a single working condition test label of the measured control valve is obtained. When the test effective signal is generated, then the multiple working condition test labels of the control valve under test are obtained.

Citation Information

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