A regulating valve control characteristic evaluation method and device, electronic equipment and storage medium

Abstract

The application provides a regulating valve control characteristic evaluation method and device, electronic equipment and a storage medium. The method comprises the following steps: automatically and in batches completing operation and maintenance management of all regulating valves in a factory through task scheduling; judging the working state of the regulating valve system through a regulating valve characteristic index database built in software; screening out regulating valves that need to be maintained or repaired for a user; intelligently managing the regulating valves in the factory; making the whole evaluation process more systematic and orderly; comprehensively covering main functions and performance indexes of the regulating valves; facilitating discovery of various problems possibly existing in the regulating valves; improving the accuracy of regulating valve function detection; and realizing digital management of the regulating valves.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of regulating valve control, and in particular to a regulating valve control characteristic evaluation method and device, electronic equipment and a storage medium. BACKGROUND

[0002] The automatic instrument and meter operation and maintenance software system is a research hotspot in current factory management systems, has a large market demand, is highly accepted by users, and the regulating valve is a pipeline control device with a large application amount in the fields of petrochemical industry and the like. The operation and maintenance management of the regulating valve is an important module and function in the entire operation and maintenance system. Generally, the intelligent instrument on the regulating valve is only an intelligent valve positioner, which controls the valve opening degree of the entire regulating valve system. To perform intelligent operation and maintenance management of the regulating valve, the operation and maintenance software mainly performs data acquisition on the regulating valve system through the intelligent valve positioner, and the operation and maintenance software and the intelligent valve positioner perform data interaction communication through a field bus.

[0003] The regulating valve is widely applied in the pipeline control of a factory. During equipment maintenance in the factory, the performance of the regulating valve is often evaluated, and it is diagnosed whether the regulating valve needs to be repaired and maintained. These works are generally manually completed by an operator, who judges the state of the regulating valve according to his own experience. The workload is large, and a large error may be caused by relying on experience judgment, which is not conducive to digital management. SUMMARY

[0004] The present application provides a regulating valve control characteristic evaluation method and device, electronic equipment and a storage medium to solve the above technical problems.

[0005] The regulating valve control characteristic evaluation method provided by the present application comprises the following steps: determining the function evaluation item order of a regulating valve through a task scheduling module; performing function evaluation on the regulating valve according to the function evaluation items of the regulating valve, wherein the function evaluation items comprise regulating valve pressure evaluation, regulating valve self-checking, regulating valve gas leakage evaluation, regulating valve stage response evaluation and regulating valve opening degree full stroke evaluation; reading to-be-evaluated data based on the function evaluation items, wherein the to-be-evaluated data comprises regulating valve pressure data, regulating valve self-checking data, regulating valve gas leakage evaluation data, regulating valve stage response evaluation data and regulating valve opening degree full stroke evaluation data; performing pressure evaluation on the regulating valve according to the regulating valve pressure data to obtain a pressure evaluation result, performing self-checking on the regulating valve according to the regulating valve self-checking data to obtain a self-checking result, performing gas leakage evaluation on the regulating valve according to the regulating valve gas leakage evaluation data to obtain a gas leakage evaluation result, performing regulating valve step characteristic evaluation according to the regulating valve stage response evaluation data to obtain a step evaluation result, and performing valve opening degree full stroke evaluation on the regulating valve according to the regulating valve opening degree full stroke evaluation data to obtain a full stroke evaluation result.

[0006] In an embodiment of the present application, the pressure evaluation of the regulating valve according to the regulating valve pressure data comprises: judging whether the gas source pressure is within a set range according to the regulating valve pressure data; if the gas source pressure is within the pressure set range, performing self-check of the regulating valve according to the regulating valve self-check data; if the gas source pressure is outside the pressure set range, terminating the pressure evaluation process and storing pressure evaluation intermediate data and pressure evaluation results.

[0007] In an embodiment of the present application, the self-check of the regulating valve according to the regulating valve self-check data comprises: recording the self-check time of the regulating valve and judging whether the self-check time of the regulating valve is within a set range; if the self-check time is outside the time set range, terminating the time regulating valve self-check process and storing self-check evaluation intermediate data and self-check evaluation results; if the self-check time is within the time set range, performing gas leakage evaluation of the regulating valve according to the regulating valve gas leakage evaluation data.

[0008] In an embodiment of the present application, the gas leakage evaluation of the regulating valve according to the regulating valve gas leakage evaluation data comprises: adjusting the valve position of the regulating valve to a first preset opening degree, collecting a first actual valve position opening degree every interval of a preset time to obtain a plurality of first actual valve position opening degrees and obtain a first valve position opening degree sequence; extracting the maximum first actual valve position opening degree and the minimum first actual valve position opening degree in the first valve position opening degree sequence and calculating the difference between the maximum first actual valve position opening degree and the minimum first actual valve position opening degree, which is recorded as a first opening degree difference; adjusting the valve position of the regulating valve to a second preset opening degree, collecting a second actual valve position opening degree every interval of a preset time to obtain a plurality of second actual valve position opening degrees and obtain a second valve position opening degree sequence; extracting the maximum second actual valve position opening degree and the minimum second actual valve position opening degree in the second valve position opening degree sequence and calculating the difference between the maximum second actual valve position opening degree and the minimum second actual valve position opening degree, which is recorded as a second opening degree difference; adjusting the valve position of the regulating valve to a third preset opening degree, collecting a third actual valve position opening degree every interval of a preset time to obtain a plurality of third actual valve position opening degrees and obtain a third valve position opening degree sequence; extracting the maximum third actual valve position opening degree and the minimum third actual valve position opening degree in the third valve position opening degree sequence and calculating the difference between the maximum third actual valve position opening degree and the minimum third actual valve position opening degree, which is recorded as a third opening degree difference; and obtaining a gas leakage evaluation result according to the first opening degree difference, the second opening degree difference and the third opening degree difference.

[0009] In an embodiment of the present application, the air leakage evaluation result is obtained according to the first opening difference value, the second opening difference value and the third opening difference value, including: if the first opening difference value, the second opening difference value and the third opening difference value are all less than or equal to a preset opening difference value, performing a step characteristic evaluation of the regulating valve; if any of the first opening difference value, the second opening difference value and the third opening difference value is greater than the preset opening difference value, terminating the air leakage evaluation process of the regulating valve, and storing intermediate data and an air leakage evaluation result.

[0010] In an embodiment of the present application, the step characteristic evaluation of the regulating valve is performed according to the regulating valve stage response evaluation data, and a step evaluation result is obtained, including: sending a step input signal to the regulating valve, adjusting the opening of the regulating valve to a preset opening value based on the step input signal; after waiting for a preset step response time, recording step response data of the regulating valve, and calculating an overshoot percentage according to the step response data; if the overshoot percentage is outside a set percentage range, terminating the step characteristic evaluation process of the regulating valve, storing step evaluation intermediate data and a step evaluation result, and if the overshoot percentage is within the set percentage range, performing a full stroke test on the regulating valve.

[0011] In an embodiment of the present application, the valve opening full stroke evaluation of the regulating valve is performed according to the regulating valve opening full stroke evaluation data, including: sending a full stroke test instruction to the regulating valve, gradually increasing the valve position of the regulating valve from zero to a full valve position, and then gradually reducing the valve position of the regulating valve from the full valve position to zero; during the valve position adjustment process, collecting a valve position percentage, a valve position percentage corresponding air source pressure and a valve position percentage corresponding output pressure; calculating a full stroke evaluation index according to the valve position percentage, the valve position percentage corresponding air source pressure and the valve position percentage corresponding output pressure, the full stroke evaluation index including regulating valve full stroke air inlet time, full stroke air outlet time, air inlet time in a preset valve position range, air outlet time in a preset valve position range, maximum friction, minimum friction and average friction.

[0012] The adjusting valve control characteristic evaluation device provided by the embodiment of the application comprises: a task sequence setting module, which is configured to determine the function evaluation item sequence of the adjusting valve through a task scheduling module; an evaluation item determination module, which is configured to perform function evaluation on the adjusting valve according to the function evaluation items of the adjusting valve, wherein the function evaluation items comprise adjusting valve pressure evaluation, adjusting valve self-checking, adjusting valve gas leakage evaluation, adjusting valve stage response evaluation and adjusting valve opening full stroke evaluation; an evaluation data acquisition module, which is configured to read to-be-evaluated data based on the function evaluation items, wherein the to-be-evaluated data comprises adjusting valve pressure data, adjusting valve self-checking data, adjusting valve gas leakage evaluation data, adjusting valve stage response evaluation data and adjusting valve opening full stroke evaluation data; and an item evaluation module, which is configured to perform pressure evaluation on the adjusting valve according to the adjusting valve pressure data to obtain a pressure evaluation result, perform self-checking on the adjusting valve according to the adjusting valve self-checking data to obtain a self-checking result, perform gas leakage evaluation on the adjusting valve according to the adjusting valve gas leakage evaluation data to obtain a gas leakage evaluation result, perform adjusting valve step characteristic evaluation according to the adjusting valve stage response evaluation data to obtain a step evaluation result, and perform valve opening full stroke evaluation on the adjusting valve according to the adjusting valve opening full stroke evaluation data to obtain a full stroke evaluation result.

[0013] The embodiment of the application provides an electronic device, comprising a processor, a memory and a communication bus; the communication bus is used for connecting the processor and the memory; the processor is used for executing a computer program stored in the memory to realize the adjusting valve control characteristic evaluation method.

[0014] The embodiment of the application provides a computer readable storage medium, which stores a computer program, and the computer program is used for enabling a computer to execute the adjusting valve control characteristic evaluation method.

[0015] The embodiment of the application provides an electronic device, comprising a processor, a memory and a communication bus; the communication bus is used for connecting the processor and the memory; the processor is used for executing a computer program stored in the memory to realize the adjusting valve control characteristic evaluation method.

[0016] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the application. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate embodiments consistent with the present application and, together with the description, further serve to explain the principles of the application. It is to be understood that the drawings are designed solely for purposes of illustration to be used in conjunction with the description in

[0018] Figure 1 is a graph of an operation and maintenance software system according to an example embodiment of the present application;

[0019] Figure 2 is a flowchart of a method of evaluating control characteristics of a regulating valve according to an example embodiment of the present application;

[0020] Figure 3 is a block diagram of an apparatus for evaluating control characteristics of a regulating valve according to an example embodiment of the present application;

[0021] Figure 4 is a schematic diagram of a structure of an electronic device according to an example embodiment of the present application. DETAILED DESCRIPTION

[0022] Other advantages and novel features of the present application will become apparent from the following detailed description of the application when considered in conjunction with the drawings. The application can be put into practice / implemented in various ways and embodiments of it will now be described, by way of example only, with reference to the accompanying drawings in which:

[0023] It is to be understood that the drawings are to be used only for illustrative purposes and that they are not to be construed as a limitation on the present application.

[0024] In the following description, numerous specific details are discussed in order to provide a thorough understanding of the embodiments of the present application. However, those of ordinary skill in the art will realize that the embodiments of the present application can be practiced without these specific details. In other instances, well-known structures and devices are not described in exhaustive detail in order to avoid obscuring the description of the present application.

[0025] Embodiments of the present application respectively propose a regulating valve control characteristic evaluation method, a regulating valve control characteristic evaluation device, an electronic device and a storage medium, which will be described in detail below.

[0026] Please refer to Figure 1 , Figure 1 The figure of the operation and maintenance software system is shown according to an embodiment of the present application, and the regulating valve control characteristic evaluation is performed through the operation and maintenance software system, as shown in Figure 1 , Figure 1 The operation and maintenance software system includes a database management module, a man-machine interaction module, a task scheduling module, a diagnosis module, a data processing module and a communication module, wherein the diagnosis module includes a pressure diagnosis module, a self-checking module, a gas leakage diagnosis module, a step response test module and a full stroke test module, the function evaluation item order of the regulating valve is determined through the task scheduling module, and the data interaction is performed through the communication module and the intelligent valve positioner; the data processing module mainly processes the data collected from the intelligent valve positioner by the communication module, the data required to be sent to the intelligent valve positioner by the software through the communication module, the fault diagnosis data and other data (software configuration data, regulating valve configuration data, etc.); the man-machine interaction module is the operation interface of the software system, including a software management interface, a diagnosis interface and the like, and each diagnosis module corresponds to one or several interfaces; the database management module includes data import and export, the imported data includes the characteristic indexes of the regulating valve, including valve data information, actuator data information, intelligent valve positioner data information and the like, specifically including valve type, valve number and the like; the exported data includes the regulating valve diagnosis report, intermediate data during diagnosis and the like; the task scheduling module can index the regulating valve according to different methods such as workshop, type and process section, set the order and task of the corresponding regulating valve diagnosis evaluation; the diagnosis module includes the sub-modules such as the pressure diagnosis module, the self-checking module, the gas leakage diagnosis module, the step response test module and the full stroke test module, the first three sub-modules (the pressure diagnosis module, the self-checking module and the gas leakage diagnosis module) are the standard sub-modules, which are executed according to the preset order and cannot be changed, and the step response test module and the full stroke test module can select the execution number and the execution order.

[0027] Please refer to Figure 2 , Figure 2 The figure of the regulating valve control characteristic evaluation method is shown according to an embodiment of the present application. As shown in Figure 2 , the method at least includes steps S210 to S240, which are described in detail as follows:

[0028] Step S210, the function evaluation item order of the regulating valve is determined through the task scheduling module;

[0029] In an embodiment of the present application, the task scheduling module determines the order of the function evaluation items of the regulating valve, and specifically, the first three sub-modules (the pressure diagnosis module, the self-checking module, and the air leakage diagnosis module) are the standard sub-modules, which are executed according to a preset order and cannot be changed, and the two sub-modules (the step response test module and the full stroke test module) can be selected for execution in terms of the number and the order.

[0030] In step S220, the function of the regulating valve is evaluated according to the function evaluation items of the regulating valve, and the function evaluation items include the regulating valve pressure evaluation, the regulating valve self-checking, the regulating valve air leakage evaluation, the regulating valve step response evaluation, and the regulating valve opening full stroke evaluation.

[0031] In step S230, the to-be-evaluated data is read based on the function evaluation items, and the to-be-evaluated data includes the regulating valve pressure data, the regulating valve self-checking data, the regulating valve air leakage evaluation data, the regulating valve step response evaluation data, and the regulating valve opening full stroke evaluation data.

[0032] In step S240, the pressure evaluation of the regulating valve is performed according to the regulating valve pressure data, and the pressure evaluation result is obtained, the self-checking of the regulating valve is performed according to the regulating valve self-checking data, and the self-checking result is obtained, the air leakage evaluation of the regulating valve is performed according to the regulating valve air leakage evaluation data, and the air leakage evaluation result is obtained, the step response evaluation of the regulating valve is performed according to the regulating valve step response evaluation data, and the step response evaluation result is obtained, and the valve opening full stroke evaluation of the regulating valve is performed according to the regulating valve opening full stroke evaluation data, and the valve opening full stroke evaluation result is obtained.

[0033] In Figure 1 In the technical solution shown, the operation and maintenance management of all regulating valves in the factory is automatically and batch-completed through task scheduling, the working state of the regulating valve system is judged and evaluated through the regulating valve characteristic index database built in the software, the regulating valve needing to be maintained or repaired is screened out for the user, the regulating valves in the factory are intelligently managed, the entire evaluation process is more systematic and orderly, the main functions and performance indexes of the regulating valve are comprehensively covered, various problems possibly existing in the regulating valve are easily found, the accuracy of the function detection of the regulating valve is improved, and the digital management of the regulating valve is realized.

[0034] In an embodiment of the present application, the pressure evaluation of the regulating valve according to the regulating valve pressure data includes: judging whether the gas source pressure is within the set range according to the regulating valve pressure data, if the gas source pressure is within the set pressure range, performing the self-checking of the regulating valve according to the regulating valve self-checking data, and if the gas source pressure is outside the set pressure range, terminating the pressure evaluation process and storing the intermediate data and the pressure evaluation result in the pressure evaluation.

[0035] As an example, read the smart valve positioner pressure data, determine whether the gas source pressure is within the set range, if not within the set range, terminate the evaluation process, store the pressure evaluation intermediate data and pressure evaluation result, and display to the user through the human-computer interaction module.

[0036] In an embodiment of the present application, the regulating valve is self-checked according to the self-checking data of the regulating valve, and a self-checking result is obtained, including: recording the self-checking time of the regulating valve, determining whether the self-checking time of the regulating valve is within the set range; if the self-checking time is outside the time set range, terminating the time regulating valve self-checking process, and storing the self-checking evaluation intermediate data and the self-checking evaluation result; if the self-checking time is within the time set range, the regulating valve is evaluated for gas leakage according to the regulating valve gas leakage evaluation data.

[0037] As an example, the regulating valve is self-checked, and the operation and maintenance software system records the self-checking time, determines whether the self-checking time is within the set range, if not within the set range, terminates the evaluation process, stores the self-checking evaluation intermediate data and the self-checking evaluation result, and displays to the user through the human-computer interaction module.

[0038] In an embodiment of the present application, the regulating valve is evaluated for gas leakage according to the regulating valve gas leakage evaluation data, including: controlling the regulating valve position to adjust to a first preset opening, collecting a first actual valve position opening every interval preset time, obtaining a plurality of first actual valve position openings, and obtaining a first valve position opening sequence; extracting the maximum first actual valve position opening and the minimum first actual valve position opening in the first valve position opening sequence, and calculating the difference between the maximum first actual valve position opening and the minimum first actual valve position opening, denoted as the first opening difference, and controlling the regulating valve position to adjust to a second preset opening, collecting a second actual valve position opening every interval preset time, obtaining a plurality of second actual valve position openings, and obtaining a second valve position opening sequence; extracting the maximum second actual valve position opening and the minimum second actual valve position opening in the second valve position opening sequence, and calculating the difference between the maximum second actual valve position opening and the minimum second actual valve position opening, denoted as the second opening difference, and controlling the regulating valve position to adjust to a third preset opening, collecting a third actual valve position opening every interval preset time, obtaining a plurality of third actual valve position openings, and obtaining a third valve position opening sequence; extracting the maximum third actual valve position opening and the minimum third actual valve position opening in the third valve position opening sequence, and calculating the difference between the maximum third actual valve position opening and the minimum third actual valve position opening, denoted as the third opening difference, and obtaining the gas leakage evaluation result according to the first opening difference, the second opening difference and the third opening difference.

[0039] In an embodiment of the present application, the air leakage evaluation result is obtained according to the first opening difference value, the second opening difference value and the third opening difference value, including: if the first opening difference value, the second opening difference value and the third opening difference value are all less than or equal to the preset opening difference value, the regulating valve step characteristic evaluation is performed; if any of the first opening difference value, the second opening difference value and the third opening difference value is greater than the preset opening difference value, the air leakage evaluation process of the regulating valve is terminated, and the air leakage evaluation intermediate data and the air leakage evaluation result are stored.

[0040] As an example, the first preset opening degree is 25%, the second preset opening degree is 50%, the third preset opening degree is 75%, the preset time is 10 seconds, and the preset opening difference value is 0.5%. The operation and maintenance software system controls the regulating valve position to adjust to 25%, collects the current valve position percentage every 10 seconds, collects 3 times, and the difference between the maximum value and the minimum value of the 3 valve position percentages cannot be greater than 0.5%; the operation and maintenance software system controls the regulating valve position to adjust to 50%, collects the current valve position percentage every 10 seconds, collects 3 times, and the difference between the maximum value and the minimum value of the 3 valve position percentages cannot be greater than 0.5%; the operation and maintenance software system controls the regulating valve position to adjust to 75%, collects the current valve position percentage every 10 seconds, collects 3 times, and the difference between the maximum value and the minimum value of the 3 valve position percentages cannot be greater than 0.5%; if one of the three position tests is not within the set range, the evaluation process is terminated, the evaluation intermediate data and the evaluation result are stored, and the user is displayed through the human-computer interaction module.

[0041] In an embodiment of the present application, the regulating valve step characteristic evaluation is performed according to the regulating valve stage response evaluation data, and a step evaluation result is obtained, including: sending a step input signal to the regulating valve, adjusting the opening degree of the regulating valve to a preset opening degree value based on the step input signal; after waiting for a preset step response time, recording the step response data of the regulating valve, and calculating the overshoot percentage according to the step response data; if the overshoot percentage is outside the set percentage range, the regulating valve step characteristic evaluation process is terminated, the step evaluation intermediate data and the step evaluation result are stored, and if the overshoot percentage is within the set percentage range, the regulating valve is tested for full stroke.

[0042] As an example, the regulating valve step characteristic test is performed, the step response test time and steps can be set, the steps can be set to a maximum of 20 steps, and the time can be set to a maximum of 30 seconds. The step response test module interacts with the intelligent valve positioner through the communication module, the data processing module processes the communication data, the human-computer interaction module displays the graphical data after the step response test, the database management module stores the test data, including the test intermediate data and the test result, and if the overshoot percentage is not within the set range, the evaluation process is terminated, the step evaluation intermediate data and the step evaluation result are stored, and the user is displayed through the human-computer interaction module.

[0043] In one embodiment of the present application, the valve opening full stroke evaluation of the regulating valve according to the regulating valve opening full stroke evaluation data includes: sending a full stroke test instruction to the regulating valve, gradually increasing the valve position of the regulating valve from zero to the full valve position, then gradually reducing the valve position of the regulating valve from the full valve position to zero; during the adjustment of the valve position, collecting the valve position percentage, the air source pressure corresponding to the valve position percentage, and the output pressure corresponding to the valve position percentage; calculating the full stroke evaluation index according to the valve position percentage, the air source pressure corresponding to the valve position percentage, and the output pressure corresponding to the valve position percentage, the full stroke evaluation index including the regulating valve full stroke air inlet time, the full stroke air outlet time, the air inlet time of the preset valve position range, the air outlet time of the preset valve position range, the maximum friction, the minimum friction, and the average friction.

[0044] As an example, the full stroke test is performed, the full stroke test module interacts with the intelligent valve positioner through the communication module, the data processing module processes the communication data, the man-machine interaction module displays the graphical data after the full stroke test, and the database management module stores the test data, including the intermediate test data and the test results; the data collected by the full stroke test module is the valve position from 0% to 100%, and then from 100% to 0%, at equal time intervals, the valve position percentage, the air source pressure corresponding to the valve position percentage, and the output pressure corresponding to the valve position percentage, etc., these data are calculated by the data processing module to obtain the corresponding evaluation index, the main evaluation index including the regulating valve full stroke air inlet time, the full stroke air outlet time, the 30%-70% air inlet time, the 70%-30% air outlet time, the maximum friction, the minimum friction, and the average friction, etc.

[0045] Figure 3 A block diagram of a regulating valve control characteristic evaluation device according to an example embodiment of the present application is shown. Referring to Figure 3As shown, the regulating valve control characteristic evaluation device 300 according to one embodiment of the present application comprises a task sequence setting module 310, an evaluation item determining module 320, an evaluation data obtaining module 330, and an item evaluation module 340. The task sequence setting module is configured to determine the functional evaluation item sequence of the regulating valve by the task scheduling module; the evaluation item determining module is configured to perform functional evaluation on the regulating valve according to the functional evaluation item of the regulating valve, wherein the functional evaluation item comprises regulating valve pressure evaluation, regulating valve self-checking, regulating valve leakage evaluation, regulating valve stage response evaluation, and regulating valve opening full stroke evaluation; the evaluation data obtaining module is configured to read the to-be-evaluated data based on the functional evaluation item, wherein the to-be-evaluated data comprises regulating valve pressure data, regulating valve self-checking data, regulating valve leakage evaluation data, regulating valve stage response evaluation data, and regulating valve opening full stroke evaluation data; and the item evaluation module is configured to perform pressure evaluation on the regulating valve according to the regulating valve pressure data to obtain a pressure evaluation result, perform self-checking on the regulating valve according to the regulating valve self-checking data to obtain a self-checking result, perform leakage evaluation on the regulating valve according to the regulating valve leakage evaluation data to obtain a leakage evaluation result, perform regulating valve step characteristic evaluation according to the regulating valve stage response evaluation data to obtain a step evaluation result, and perform regulating valve opening full stroke evaluation on the regulating valve according to the regulating valve opening full stroke evaluation data to obtain a full stroke evaluation result. Through task scheduling, the operation and maintenance management of all regulating valves in the factory is automatically and batch-completed, the working state of the regulating valve system is judged through the regulating valve characteristic index database built in the software, the regulating valve needing to be maintained or repaired is screened out for the user, the regulating valve in the factory is intelligently managed, the entire evaluation process is more systematic and orderly, the main functions and performance indexes of the regulating valve are comprehensively covered, various problems possibly existing in the regulating valve are easily found, the accuracy of the regulating valve function detection is improved, and digital management of the regulating valve is realized.

[0046] In one embodiment of the present application, the item evaluation module is configured to judge whether the gas source pressure is within the set range according to the regulating valve pressure data, and if the gas source pressure is within the pressure set range, perform self-checking on the regulating valve according to the regulating valve self-checking data; if the gas source pressure is outside the pressure set range, terminate the pressure evaluation process, and store the pressure evaluation intermediate data and the pressure evaluation result.

[0047] As an example, the intelligent valve positioner pressure data is read, it is judged whether the gas source pressure is within the set range, if not within the set range, the evaluation process is terminated, the pressure evaluation intermediate data and the pressure evaluation result are stored, and the user is displayed through the man-machine interaction module.

[0048] In an embodiment of the present application, the project evaluation module is configured to record the self-checking time of the regulating valve, determine whether the self-checking time of the regulating valve is within a set range, terminate the self-checking process of the regulating valve if the self-checking time is outside the set range, and store self-checking evaluation intermediate data and self-checking evaluation results; and perform a gas leakage evaluation of the regulating valve according to the gas leakage evaluation data of the regulating valve if the self-checking time is within the set range.

[0049] As an example, the regulating valve performs self-checking, the operation and maintenance software system records the self-checking time, determines whether the self-checking time is within a set range, terminates the evaluation process if the self-checking time is not within the set range, stores self-checking evaluation intermediate data and self-checking evaluation results, and displays the self-checking evaluation intermediate data and self-checking evaluation results to the user through the human-computer interaction module.

[0050] In an embodiment of the present application, the project evaluation module is configured to control the valve position of the regulating valve to adjust to a first preset opening degree, collect a first actual valve position opening degree every preset time interval to obtain a plurality of first actual valve position opening degrees and obtain a first valve position opening degree sequence, extract the maximum first actual valve position opening degree and the minimum first actual valve position opening degree in the first valve position opening degree sequence, calculate the difference between the maximum first actual valve position opening degree and the minimum first actual valve position opening degree, and record the difference as a first opening degree difference, control the valve position of the regulating valve to adjust to a second preset opening degree, collect a second actual valve position opening degree every preset time interval to obtain a plurality of second actual valve position opening degrees and obtain a second valve position opening degree sequence, extract the maximum second actual valve position opening degree and the minimum second actual valve position opening degree in the second valve position opening degree sequence, calculate the difference between the maximum second actual valve position opening degree and the minimum second actual valve position opening degree, and record the difference as a second opening degree difference, control the valve position of the regulating valve to adjust to a third preset opening degree, collect a third actual valve position opening degree every preset time interval to obtain a plurality of third actual valve position opening degrees and obtain a third valve position opening degree sequence, extract the maximum third actual valve position opening degree and the minimum third actual valve position opening degree in the third valve position opening degree sequence, calculate the difference between the maximum third actual valve position opening degree and the minimum third actual valve position opening degree, and record the difference as a third opening degree difference, and obtain a gas leakage evaluation result according to the first opening degree difference, the second opening degree difference, and the third opening degree difference.

[0051] In an embodiment of the present application, the project evaluation module is configured to perform a step characteristic evaluation of the regulating valve if the first opening degree difference, the second opening degree difference, and the third opening degree difference are all less than or equal to a preset opening degree difference, and terminate the gas leakage evaluation process of the regulating valve, store gas leakage evaluation intermediate data and gas leakage evaluation results if any of the first opening degree difference, the second opening degree difference, and the third opening degree difference is greater than the preset opening degree difference.

[0052] As an example, the first preset opening degree is 25%, the second preset opening degree is 50%, the third preset opening degree is 75%, the preset time is 10 seconds, and the preset opening degree difference value is 0.5%. The operation and maintenance software system controls the valve position of the regulating valve to be adjusted to 25%, collects the current valve position percentage every 10 seconds, collects 3 times, and the difference between the maximum value and the minimum value of the valve position percentage in 3 times cannot be greater than 0.5%. The operation and maintenance software system controls the valve position of the regulating valve to be adjusted to 50%, collects the current valve position percentage every 10 seconds, collects 3 times, and the difference between the maximum value and the minimum value of the valve position percentage in 3 times cannot be greater than 0.5%. The operation and maintenance software system controls the valve position of the regulating valve to be adjusted to 75%, collects the current valve position percentage every 10 seconds, collects 3 times, and the difference between the maximum value and the minimum value of the valve position percentage in 3 times cannot be greater than 0.5%. If one of the three position tests is not within the set range, terminate the evaluation process, store the evaluation intermediate data and evaluation result, and display the evaluation intermediate data and evaluation result to the user through the human-computer interaction module.

[0053] In an embodiment of the present application, the project evaluation module is used to send a step input signal to the regulating valve, and adjust the opening degree of the regulating valve to a preset opening degree value based on the step input signal. After waiting for a preset step response time, the step response data of the regulating valve is recorded, and the overshoot percentage is calculated according to the step response data. If the overshoot percentage is outside the set percentage range, terminate the regulating valve step characteristic evaluation process, store the step evaluation intermediate data and step evaluation result, and if the overshoot percentage is within the set percentage range, perform a full stroke test on the regulating valve.

[0054] As an example, the regulating valve step characteristic test is performed, the step response test time and steps can be set, the steps can be set to a maximum of 20 steps, and the time can be set to a maximum of 30 seconds. The step response test module interacts with the intelligent valve positioner through the communication module, the data processing module processes the communication data, the human-computer interaction module displays the graphical data after the step response test, the database management module stores the test data, including the test intermediate data and the test result, and if the test result is not within the set range, terminate the evaluation process, store the step evaluation intermediate data and step evaluation result, and display the step evaluation intermediate data and step evaluation result to the user through the human-computer interaction module.

[0055] In an embodiment of the present application, the project evaluation module is configured to send a full stroke test instruction to the regulating valve, control the valve position of the regulating valve to gradually increase from zero to the full valve position, and then control the valve position of the regulating valve to gradually decrease from the full valve position to zero; during the adjustment of the valve position, collect the valve position percentage, the air source pressure corresponding to the valve position percentage, and the output pressure corresponding to the valve position percentage; and calculate the full stroke evaluation index according to the valve position percentage, the air source pressure corresponding to the valve position percentage, and the output pressure corresponding to the valve position percentage, wherein the full stroke evaluation index includes the full stroke air inlet time of the regulating valve, the full stroke air outlet time, the air inlet time of a preset valve position range, the air outlet time of the preset valve position range, the maximum friction, the minimum friction, and the average friction.

[0056] As an example, the full stroke test is performed, the full stroke test module performs data interaction with the intelligent valve positioner through the communication module, the data processing module processes the communication data, the man-machine interaction module displays the graphical data after the full stroke test, and the database management module stores the test data, including the intermediate data and the test results during the test; the data collected by the full stroke test module is the valve position percentage, the air source pressure corresponding to the valve position percentage, and the output pressure corresponding to the valve position percentage, etc. at equal time intervals from 0% to 100% and then from 100% to 0%, and the corresponding evaluation index is calculated by the data processing module, and the main evaluation index includes the full stroke air inlet time of the regulating valve, the full stroke air outlet time, the 30%-70% air inlet time, the 70%-30% air outlet time, the maximum friction, the minimum friction, and the average friction.

[0057] It should be noted that the apparatus provided by the above embodiments and the method provided by the above embodiments belong to the same concept, and the specific manner in which each module and unit performs operations has been described in detail in the method embodiments, which will not be described here. In actual application, the functions of the above embodiments can be distributed to different functional modules to complete all or part of the functions described above, i.e., the internal structure of the apparatus is divided into different functional modules to complete all or part of the functions described above, and this is not limited herein.

[0058] Please refer to Figure 4 , Figure 4 is a structural schematic diagram of an electronic device according to an example embodiment of the present application. It should be noted that Figure 4 The electronic device 400 shown is only an example, and should not limit the function and use area of the embodiments of the present application.

[0059] As Figure 4As shown, the electronic device 400 comprises a processor 401, a memory 402 and a communication bus 403; the communication bus 403 is used to connect the processor 401 and the memory 402; the processor 401 is used to execute the computer program stored in the memory 402 to realize the method of one or more of the above-mentioned embodiments.

[0060] The electronic device provided in the present application comprises a processor, a memory, a transceiver and a communication interface; the memory and the communication interface are connected with the processor and the transceiver and complete communication between each other; the memory is used to store a computer program; the communication interface is used to communicate; the processor and the transceiver are used to run the computer program, so that the electronic device executes each step of the above method.

[0061] In the present embodiment, the memory can contain a random access memory (RAM) and can also include a non-volatile memory, for example, at least one disk memory.

[0062] The processor mentioned above can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP) and the like; can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0063] The above-mentioned embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought of the present application should be covered by the claims of the present application.

Claims

1. A method for evaluating the control characteristics of a regulating valve, characterized in that, The method includes: The order of functional evaluation items for the control valve is determined by the task scheduling module; The control valve is evaluated according to the functional evaluation items, which include control valve pressure evaluation, control valve self-test, control valve leakage evaluation, control valve stage response evaluation, and control valve opening full stroke evaluation. Based on the aforementioned functional evaluation items, the data to be evaluated is read, including control valve pressure data, control valve self-test data, control valve leakage evaluation data, control valve stage response evaluation data, and control valve opening full stroke evaluation data. The control valve is pressure evaluated based on the pressure data to obtain a pressure evaluation result; the control valve is self-tested based on the self-test data to obtain a self-test result; the control valve is leak evaluated based on the leakage evaluation data to obtain a leakage evaluation result; the control valve is step-characteristic evaluated based on the stage response evaluation data to obtain a step evaluation result; and the control valve is full-stroke evaluation based on the full-stroke opening evaluation data to obtain a full-stroke evaluation result. The control valve is evaluated for leakage based on the leakage evaluation data, including: The regulating valve is controlled to adjust its position to a first preset opening degree. The actual valve position opening degree is collected at preset time intervals to obtain multiple actual valve position opening degrees, resulting in a first valve position opening degree sequence. The maximum and minimum actual valve position opening degrees in the first valve position opening degree sequence are extracted, and the difference between the maximum and minimum actual valve position opening degrees is calculated and denoted as the first opening degree difference. The regulating valve is controlled to adjust its position to a second preset opening degree. The actual second valve position opening degree is collected at preset time intervals, resulting in multiple actual second valve position opening degrees and a second valve position opening degree sequence. The maximum and minimum actual second valve position opening degrees are extracted from the second valve position opening degree sequence, and the difference between the maximum and minimum actual second valve position opening degrees is calculated and denoted as the second opening degree difference. The regulating valve is controlled to adjust its position to a third preset opening degree. The actual third valve position opening degree is collected at preset time intervals, resulting in multiple actual third valve position opening degrees and a sequence of third valve position opening degrees. The maximum and minimum actual third valve position opening degrees in the sequence are extracted, and the difference between them is calculated and recorded as the third opening degree difference. The leakage evaluation result is obtained based on the first opening difference, the second opening difference, and the third opening difference, including: if the first opening difference, the second opening difference, and the third opening difference are all less than or equal to a preset opening difference, then the step characteristic evaluation of the control valve is performed; if any one of the first opening difference, the second opening difference, and the third opening difference is greater than the preset opening difference, then the leakage evaluation process of the control valve is terminated, and the intermediate leakage evaluation data and the leakage evaluation result are stored.

2. The method for evaluating the control characteristics of a regulating valve according to claim 1, characterized in that, The pressure evaluation of the regulating valve is performed based on the pressure data of the regulating valve, including: Determine whether the gas source pressure is within the set range based on the pressure data from the regulating valve. If the gas source pressure is within the pressure setting range, the regulating valve is self-tested based on the regulating valve self-test data; If the gas source pressure is outside the pressure setting range, the pressure evaluation process is terminated, and the intermediate pressure evaluation data and pressure evaluation results are stored.

3. The method for evaluating the control characteristics of a regulating valve according to claim 1, characterized in that, The control valve is self-tested based on the self-test data to obtain the self-test results, including: Record the self-test time of the regulating valve and determine whether the self-test time of the regulating valve is within the set range; If the self-test time is outside the time setting range, the self-test process of the time regulating valve is terminated, and the intermediate self-test evaluation data and self-test evaluation results are stored. If the self-test time is within the time setting range, then the regulating valve is evaluated for leakage based on the leakage evaluation data of the regulating valve.

4. The method for evaluating the control characteristics of a regulating valve according to claim 1, characterized in that, The step characteristics of the control valve are evaluated based on the stage response evaluation data, and the step evaluation results are obtained, including: A step input signal is sent to the regulating valve, and the opening degree of the regulating valve is adjusted to a preset opening degree value based on the step input signal; After waiting for a preset step response time, the step response data of the regulating valve is recorded, and the overshoot percentage is calculated based on the step response data. If the overshoot percentage is outside the set percentage range, the step characteristic evaluation process of the control valve is terminated, and the intermediate step evaluation data and step evaluation results are stored. If the overshoot percentage is within the set percentage range, the control valve is subjected to a full stroke test.

5. The method for evaluating the control characteristics of a regulating valve according to claim 1, characterized in that, The control valve is evaluated for its full opening stroke based on the full stroke evaluation data, including: Send a full-stroke test command to the regulating valve, control the valve position to gradually increase from zero to full valve position, and then control the valve position to decrease from full valve position to zero. During valve position adjustment, the valve position percentage, the corresponding air source pressure, and the corresponding output pressure are collected. The full-stroke evaluation index is calculated based on the valve position percentage, the air source pressure corresponding to the valve position percentage, and the output pressure corresponding to the valve position percentage. The full-stroke evaluation index includes the full-stroke air intake time of the regulating valve, the full-stroke air exhaust time, the air intake time within the preset valve position range, the air exhaust time within the preset valve position range, the maximum friction force, the minimum friction force, and the average friction force.

6. A control valve control characteristic evaluation device applied to the control valve control characteristic evaluation method as described in any one of claims 1 to 5, characterized in that, The device includes: The task sequence setting module is used to determine the sequence of functional evaluation items for the control valve through the task scheduling module. The evaluation item determination module is used to evaluate the function of the control valve according to the functional evaluation items of the control valve. The functional evaluation items include control valve pressure evaluation, control valve self-test, control valve leakage evaluation, control valve stage response evaluation, and control valve opening full stroke evaluation. The evaluation data acquisition module is used to read the data to be evaluated based on the functional evaluation items. The data to be evaluated includes control valve pressure data, control valve self-test data, control valve leakage evaluation data, control valve stage response evaluation data, and control valve opening full stroke evaluation data. The project evaluation module is used to evaluate the control valve based on the control valve pressure data to obtain a pressure evaluation result; to perform a self-test on the control valve based on the control valve self-test data to obtain a self-test result; to perform a leakage evaluation on the control valve based on the control valve leakage evaluation data to obtain a leakage evaluation result; to evaluate the step characteristics of the control valve based on the control valve stage response evaluation data to obtain a step evaluation result; and to perform a full-stroke evaluation of the control valve opening based on the full-stroke evaluation data to obtain a full-stroke evaluation result.

7. An electronic device, characterized in that, It includes a processor, a memory, and a communication bus; the communication bus is used to connect the processor and the memory; the processor is used to execute a computer program stored in the memory to implement the regulating valve control characteristic evaluation method as described in any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that, It stores a computer program that enables the computer to execute the method for evaluating the control characteristics of a regulating valve as described in any one of claims 1 to 5.

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