State evaluation method and device of regulating valve, electronic equipment and storage medium

Abstract

The invention provides a state evaluation method and device of a regulating valve, electronic equipment and a storage medium. The method comprises the steps that the historical operation duration of the regulating valve and the opening degree of the regulating valve in the current working state are determined; actual flow data of the regulating valve are determined according to the opening degree, and theoretical flow data matched with the opening degree are determined according to the opening degree and the mapping relation between the opening degree and the theoretical flow data; and according to the historical operation duration, the actual flow data and the theoretical flow data, the state of the regulating valve is evaluated. The state of the regulating valve can be comprehensively evaluated through the historical operation duration, the attenuation degree of the regulating valve can be quantified, the state of the regulating valve is further evaluated in combination with the actual flow data and the theoretical flow data under the opening degree, the accuracy and timeliness of state evaluation of the regulating valve can be improved, and the service life of the regulating valve is prolonged. And the problems of low efficiency, difficulty in timely discovery of potential fault hidden dangers and the like in the traditional manual inspection and regular maintenance mode are solved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of device detection, and particularly relates to a state evaluation method and device of a regulating valve, an electronic device and a storage medium. BACKGROUND

[0002] In the industrial production process, as a key control device, the regulating valve is widely used in petroleum chemical industry, electric power, metallurgy and other fields, and its performance and state directly affect the stability and safety of the production process. With the development of industrial automation and intelligentization, higher requirements are put forward for the performance evaluation, state detection and fault diagnosis of the regulating valve. The traditional performance evaluation and state detection of the regulating valve mainly rely on manual inspection and regular maintenance. First, the efficiency of manual inspection is low, and second, as the service time increases, the performance of the regulating valve will also decrease, and this decreasing process is gradual and hidden, which further increases the difficulty of manual inspection and regular maintenance, and makes it difficult to find potential fault hazards of the regulating valve in time, which brings safety hazards to the production work. SUMMARY

[0003] In view of the above shortcomings of the prior art, the purpose of the present application is to provide a state evaluation method and device of a regulating valve, an electronic device and a storage medium, which can solve the above problems.

[0004] The state evaluation method of the regulating valve provided by the present application comprises the following steps: determining the historical running time and the opening degree of the regulating valve under the current working state; determining the actual flow data of the regulating valve according to the opening degree, and determining the theoretical flow data matched with the opening degree according to the opening degree and the mapping relationship between the opening degree and the theoretical flow data; and evaluating the state of the regulating valve according to the historical running time, the actual flow data and the theoretical flow data.

[0005] In an embodiment of the present application, before determining the theoretical flow data matched with the opening degree according to the mapping relationship between the opening degree and the theoretical flow data, the method further comprises the following steps: obtaining a plurality of initial theoretical flow data of the regulating valve under each opening degree; performing outlier processing on the plurality of initial theoretical flow data under each opening degree to obtain an outlier processing result; determining the theoretical flow data under each opening degree by the average method according to the outlier processing result, and determining the mapping relationship between the opening degree of the regulating valve and the theoretical flow data according to the theoretical flow data under each opening degree.

[0006] In an embodiment of the present application, the state of the regulating valve is evaluated according to the historical running time, the actual flow data and the theoretical flow data, including: determining the equipment attenuation coefficient of the regulating valve according to the historical running time, and determining the attenuation flow data matched with the equipment attenuation coefficient according to the equipment attenuation coefficient and the mapping relationship between the equipment attenuation coefficient and the attenuation flow data; evaluating the state of the regulating valve according to the attenuation flow data, the actual flow data and the theoretical flow data.

[0007] In an embodiment of the present application, the equipment attenuation coefficient of the regulating valve is determined according to the historical running time, including: obtaining the theoretical use time and the historical failure times of the regulating valve; determining the running time attenuation factor according to the historical running time and the theoretical use time; determining the failure times attenuation factor according to the historical failure times; and obtaining the equipment attenuation coefficient of the regulating valve by weighted sum of the running time attenuation factor and the failure times attenuation factor based on a preset weight.

[0008] In an embodiment of the present application, the state of the regulating valve is evaluated according to the attenuation flow data, the actual flow data and the theoretical flow data, including: determining the target flow data of the regulating valve at the current opening degree according to the attenuation flow data and the theoretical flow data; and evaluating the state of the regulating valve according to the target flow data and the actual flow data.

[0009] In an embodiment of the present application, the state of the regulating valve is evaluated according to the target flow data and the actual flow data, including: obtaining a plurality of actual flow data of the regulating valve within a preset period; determining whether each actual flow data is within a preset range based on the target flow data; if the number of actual flow data within the preset range based on the target flow data is greater than or equal to a preset threshold, determining that the state of the regulating valve is normal; and if the number of actual flow data within the preset range based on the target flow data is less than the preset threshold, determining that the state of the regulating valve is abnormal.

[0010] The present application also provides a state evaluation device of a regulating valve, including: a first determination module configured to determine the historical running time and the opening degree of the regulating valve under the current working state; a second determination module configured to determine the actual flow data of the regulating valve according to the opening degree, and determine the theoretical flow data matched with the opening degree according to the mapping relationship between the opening degree and the theoretical flow data; and a state evaluation module configured to evaluate the state of the regulating valve according to the historical running time, the actual flow data and the theoretical flow data.

[0011] The present application also provides an electronic device, including: one or more processors; a storage device configured to store one or more programs, when the one or more programs are executed by the one or more processors, the electronic device implements the steps of the above method.

[0012] The application further provides a computer readable storage medium, which stores a computer program, and the computer program, when executed by a processor of a computer, causes the computer to execute steps of the method.

[0013] The application further provides a computer program product comprising a computer program, wherein the computer program, when executed by a processor, implements steps of the method.

[0014] The technical scheme has the beneficial effects that: in the technical scheme, the opening degree of the regulating valve in the historical running time length and the current working state is determined; the actual flow data of the regulating valve is determined according to the opening degree, and the theoretical flow data matched with the opening degree is determined according to the opening degree and the mapping relationship between the opening degree and the theoretical flow data; and the state of the regulating valve is evaluated according to the historical running time length, the actual flow data and the theoretical flow data. The state of the regulating valve is comprehensively evaluated through the historical running time length, the attenuation degree of the regulating valve can be quantified, the state of the regulating valve is evaluated by further combining the actual flow data and the theoretical flow data under the opening degree, the accuracy and timeliness of the state evaluation of the regulating valve can be improved, and the problems of low efficiency, difficulty in finding potential fault hidden dangers in time and the like in the traditional manual inspection and regular maintenance mode are avoided.

[0015] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and are not limiting to the application. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings incorporated into the specification and forming a part thereof, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application. It is clear that the drawings described below are only some embodiments of the present application, and other drawings can be obtained from these drawings without creative labor for those skilled in the art. In the drawings: Figure 1 is a flowchart of a state evaluation method of a regulating valve according to an exemplary embodiment of the present application; Figure 2 is a structural schematic diagram of a state evaluation device of a regulating valve according to an exemplary embodiment of the present application; Figure 3 shows a structural schematic diagram of a computer system of an electronic device suitable for implementing an embodiment of the present application. DETAILED DESCRIPTION

[0017] The present application is herein described, by way of example only, with reference to the accompanying drawings, Best Modes and Preferred Embodiments. As is customary in this specification and annexed drawings, like reference numerals have been used to denote like or similar components. It should be understood that many additional parts that are not specifically shown or described herein can be incorporated into the present application. Furthermore, the description set forth herein, in connection with the illustrative embodiments, only, and is not intended to be a limitation on the scope of the application. It is to be understood that the use of the present application can include other specific embodiments or examples that do not necessarily exhibit all the described features or characteristics.

[0018] It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting, since the scope of the present application will be limited only by the appended claims.

[0019] In the following description, numerous specific details are discussed to provide a thorough understanding of the embodiments of the application. However, one of ordinary skill in the art will recognize that the application can be practiced without one or more of the specific details. In other instances, well-known structures and devices are shown in block diagram form to avoid obscuring the application.

[0020] Reference will now be made to the drawings to describe the preferred embodiments of the application. Figure 1 , Figure 1 is a flow chart of a method for evaluating the state of a regulating valve according to an exemplary embodiment of the present application. As shown in Figure 1 , in an exemplary embodiment, the method for evaluating the state of a regulating valve includes steps S110 to S130, which will be described in detail below.

[0021] S110, determining the historical running time length and the opening degree of the regulating valve under the current working state; Specifically, the historical running time length represents the cumulative working time length of the regulating valve, which can be determined by configuring a timing device in the regulating valve or the control system to which the regulating valve belongs, so as to quantify the degree of attenuation of the regulating valve. It can be understood that the opening degree represents the percentage of the opening and closing position of the valve, which can be measured by a displacement sensor or an angle encoder.

[0022] S120, determining the actual flow data of the regulating valve according to the opening degree, and determining the theoretical flow data matched with the opening degree according to the mapping relationship between the opening degree and the theoretical flow data; Specifically, the actual flow data is collected in real time by a flow meter, representing the real flow rate of the regulating valve under the current opening degree in the current environment and working condition.

[0023] It can be understood that a mapping relationship between the opening degree and the theoretical flow data can be constructed in advance, and the mapping relationship represents the theoretical through flow of the regulating valve under each opening degree.

[0024] In S130, the state of the regulating valve is evaluated according to the historical running time length, the actual flow data and the theoretical flow data.

[0025] Specifically, during the running of the regulating valve, the valve opening time is continuously recorded and stored as the historical running time length. When the valve is in the working state, the current opening degree of the regulating valve is monitored in real time, and the actual flow data flowing through the regulating valve is determined based on the opening degree by the flowmeter.

[0026] Further, the theoretical flow data under the opening degree is determined based on the mapping relationship between the opening degree and the theoretical flow data, and then the state of the regulating valve is comprehensively evaluated in combination with the historical running time length, the actual flow data and the theoretical flow data.

[0027] According to the technical scheme provided in the embodiments of the present application, the historical running time length and the opening degree of the regulating valve in the current working state are determined, the actual flow data of the regulating valve is determined according to the opening degree, and the theoretical flow data matched with the opening degree is determined according to the opening degree and the mapping relationship between the opening degree and the theoretical flow data. The state of the regulating valve is evaluated according to the historical running time length, the actual flow data and the theoretical flow data. By comprehensively evaluating the state of the regulating valve through the historical running time length, the attenuation degree of the regulating valve can be quantified, and further evaluating the state of the regulating valve in combination with the actual flow data and the theoretical flow data under the opening degree can improve the accuracy and timeliness of the state evaluation of the regulating valve, and avoid the problems of low efficiency, difficulty in finding potential fault hidden dangers in time and the like existing in the traditional manual inspection and regular maintenance mode.

[0028] In some embodiments, before determining the theoretical flow data matched with the opening degree according to the opening degree and the mapping relationship between the opening degree and the theoretical flow data, the method further includes: obtaining a plurality of initial theoretical flow data of the regulating valve under each opening degree; performing outlier processing on the plurality of initial theoretical flow data under each opening degree to obtain an outlier processing result; determining the theoretical flow data under each opening degree by the average value method according to the outlier processing result, and determining the mapping relationship between the opening degree and the theoretical flow data of the regulating valve according to the theoretical flow data under each opening degree.

[0029] Specifically, the plurality of initial theoretical flow data represents a flow value set obtained by multiple measurements of the regulating valve under a certain specific opening degree, which can be realized by continuous sampling or interval sampling of the flow sensor under a fixed opening degree, for eliminating accidental errors existing in single measurement.

[0030] In addition, since the collected initial theoretical flow data has relatively high accuracy, the initial theoretical flow data can be uniformly kept to two decimal places to facilitate subsequent data processing and analysis, and the accuracy and reliability of the data can be ensured.

[0031] Further, the plurality of initial theoretical flow data under each opening degree is subjected to outlier processing to obtain an outlier processing result. The specific outlier processing method can be, for example, the interquartile range method, the density-based clustering method, and the like. The present embodiment does not make a specific limitation thereto.

[0032] Finally, the theoretical flow data under each opening degree is determined by the average method according to the outlier processing result, and the mapping relationship between the opening degree and the theoretical flow data of the regulating valve is determined according to the theoretical flow data under each opening degree.

[0033] It can be understood that the average method refers to an arithmetic average calculation of the remaining data after the outlier processing, and the arithmetic average or the weighted average method can be specifically used. The mapping relationship represents the corresponding functional relationship between the opening degree and the theoretical flow data, and the polynomial fitting or the piecewise linear interpolation method can be specifically used to establish a data model.

[0034] According to the technical scheme provided in the embodiments of the present application, better and higher quality data can be obtained through outlier processing and average method processing, so that the mapping relationship between the opening degree and the theoretical flow data constructed is more accurate.

[0035] In some embodiments, the state of the regulating valve is evaluated according to the historical running time, the actual flow data, and the theoretical flow data, including: determining a device attenuation coefficient of the regulating valve according to the historical running time, and determining attenuation flow data matched with the device attenuation coefficient according to the device attenuation coefficient and the mapping relationship between the device attenuation coefficient and the attenuation flow data; and evaluating the state of the regulating valve according to the attenuation flow data, the actual flow data, and the theoretical flow data.

[0036] Specifically, the conventional state evaluation of the regulating valve only compares the dynamic actual flow with the static theoretical flow, without considering the performance attenuation caused by long-term operation of the regulating valve.

[0037] It can be understood that the device attenuation coefficient represents the degree of performance attenuation of the regulating valve caused by long-term operation, and the specific calculation method of the device attenuation coefficient will be described in detail in subsequent embodiments, which will not be described here.

[0038] It should be noted that the attenuation flow data represents the flow value that should be reduced in theory under the influence of performance attenuation of the regulating valve. That is, the flow deviation through the regulating valve caused by performance attenuation of the regulating valve. The attenuation flow data can be obtained according to the device attenuation coefficient and the mapping relationship between the device attenuation coefficient and the attenuation flow data.

[0039] It can be understood that the attenuation flow data can correct the theoretical flow data, so that the theoretical flow data of the regulating valve is more consistent with the performance attenuation caused by long-term operation, that is, the theoretical flow data through the regulating valve is more accurate, and the influence of the aging of the regulating valve on the flow evaluation is eliminated. Instead of always using the theoretical flow data of the regulating valve in the normal state as the evaluation basis.

[0040] In addition, it should be noted that when the device attenuation coefficient of the regulating valve reaches a preset threshold, it can be determined that the state of the regulating valve has been in an abnormal state. In actual application, the determination of the preset threshold can be based on the type of the regulating valve, the use environment and the working requirement.

[0041] For example, in a scene with high requirement for flow control accuracy, the preset threshold can be low, so as to timely issue a warning when the performance of the regulating valve is slightly attenuated, and take corresponding maintenance or replacement measures. In a scene with low requirement for flow control accuracy, the preset threshold can be high, so as to reduce unnecessary maintenance cost and workload.

[0042] In some embodiments, the device attenuation coefficient of the regulating valve is determined according to the historical running time, including: obtaining the theoretical use time of the regulating valve and the historical failure times; determining a running time attenuation factor according to the historical running time and the theoretical use time; determining a failure times attenuation factor according to the historical failure times; and obtaining the device attenuation coefficient of the regulating valve by weighted sum of the running time attenuation factor and the failure times attenuation factor based on a preset weight.

[0043] Specifically, the theoretical use time represents the upper limit of the running time that the regulating valve can reach under ideal working conditions, which can be determined by the design life parameter provided by the equipment manufacturer; the historical failure times represent the cumulative number of abnormalities of the regulating valve in the historical running period, which can be extracted by the equipment maintenance record database, and is used to quantify the degree of abnormal loss of the equipment.

[0044] The running time attenuation factor is calculated by the ratio of the historical running time to the theoretical use time, and is used to represent the performance loss of the equipment caused by long-term operation; the failure times attenuation factor is calculated by the ratio of the historical failure times to the preset reference failure times, and is used to reflect the performance degradation of the equipment caused by failure accumulation.

[0045] Further, the runtime length attenuation factor and the failure number attenuation factor are weighted and summed based on a preset weight to obtain the equipment attenuation coefficient of the regulating valve.

[0046] According to the technical scheme provided in the embodiments of the present application, the runtime length attenuation factor is determined according to the historical runtime length and the theoretical use length, the failure number attenuation factor is determined according to the historical failure number, and the equipment attenuation coefficient of the regulating valve is obtained by weighting and summing the runtime length attenuation factor and the failure number attenuation factor based on a preset weight. Through analyzing the coupling effect of natural aging and abnormal failure of the equipment, the problem of single attenuation coefficient calculation in the traditional evaluation method is solved, and the accuracy of the regulating valve state evaluation is improved.

[0047] In some embodiments, the state of the regulating valve is evaluated according to the attenuation flow data, the actual flow data and the theoretical flow data, including: determining the target flow data of the regulating valve at the current opening degree according to the attenuation flow data and the theoretical flow data; and evaluating the state of the regulating valve according to the target flow data and the actual flow data.

[0048] Specifically, the target flow data represents the theoretical flow reference value of the regulating valve at the current opening degree after the theoretical flow data is corrected by the attenuation flow data, and the target flow data can more accurately reflect the real theoretical flow of the regulating valve under the current operating state and the influence of historical attenuation.

[0049] Further, the state of the regulating valve is evaluated according to the target flow data and the actual flow data, including: obtaining a plurality of actual flow data of the regulating valve within a preset period; determining whether each actual flow data is within a preset range based on the target flow data; if the number of actual flow data within the preset range based on the target flow data is greater than or equal to a preset threshold, determining that the state of the regulating valve is normal; and if the number of actual flow data within the preset range based on the target flow data is less than the preset threshold, determining that the state of the regulating valve is abnormal.

[0050] Specifically, the preset period can be set according to actual needs, for example, one hour, one day or one production cycle, etc., which is not limited here. By obtaining a plurality of actual flow data within a preset period, the flow change of the regulating valve within the period can be more comprehensively reflected.

[0051] The preset range represents the allowed deviation interval based on the target flow data. For example, if the target flow data is one hundred, the preset range can be plus or minus 5% of the target flow data, i.e. between ninety-five and one hundred and five. It should be noted that the preset range can be flexibly adjusted according to actual needs and the accuracy requirements of the regulating valve, which is not limited here.

[0052] It can be understood that if the number of actual flow data within the preset range is greater than or equal to the preset threshold, it indicates that the actual flow of the regulating valve is close to the target flow most of the time within the preset period, and the performance and state of the regulating valve are relatively stable, and it can be determined that the state of the regulating valve is normal. If the number of actual flow data within the preset range is less than the preset threshold, it indicates that there are more actual flows deviating from the target flow in the regulating valve within the preset period, and at this time, the regulating valve may have performance decay, hidden trouble and other problems, and it can be determined that the state of the regulating valve is abnormal.

[0053] All the optional technical solutions described above can be combined to form optional embodiments of the present application, which will not be described one by one.

[0054] It should be understood that the size of the serial number of each step in the above embodiments does not mean the order of execution, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the process of the embodiments of the present application.

[0055] The following is an embodiment of the device of the present application, which can be used to execute the method embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the method embodiments of the present application.

[0056] Figure 2 is a structural schematic diagram of a state evaluation device of a regulating valve shown by an exemplary embodiment of the present application. As shown in Figure 2 , the exemplary state evaluation device of the regulating valve comprises: A first determination module 210 is configured to determine the opening degree of the regulating valve in the historical running time length and the current working state; A second determination module 220 is configured to determine the actual flow data of the regulating valve according to the opening degree, and determine the theoretical flow data matched with the opening degree according to the mapping relationship between the opening degree and the theoretical flow data constructed in advance; A state evaluation module 230 is configured to evaluate the state of the regulating valve according to the historical running time length, the actual flow data and the theoretical flow data.

[0057] In some embodiments, the second determination module 220 is further configured to obtain a plurality of initial theoretical flow data of the regulating valve at each opening degree; perform outlier processing on the plurality of initial theoretical flow data at each opening degree to obtain an outlier processing result; determine the theoretical flow data at each opening degree by the average method according to the outlier processing result, and determine the mapping relationship between the opening degree and the theoretical flow data of the regulating valve according to the theoretical flow data at each opening degree.

[0058] In some embodiments, the state evaluation module 230 is further configured to determine a device attenuation coefficient of the regulating valve according to the historical running time, and determine attenuation flow data matched with the device attenuation coefficient according to the device attenuation coefficient and a mapping relationship between the device attenuation coefficient and the attenuation flow data; and evaluate the state of the regulating valve according to the attenuation flow data, the actual flow data and the theoretical flow data.

[0059] In some embodiments, the state evaluation module 230 is further configured to obtain a theoretical use time and a historical failure number of the regulating valve; determine a running time attenuation factor according to the historical running time and the theoretical use time; determine a failure number attenuation factor according to the historical failure number; and obtain a device attenuation coefficient of the regulating valve by weighted sum of the running time attenuation factor and the failure number attenuation factor based on a preset weight.

[0060] In some embodiments, the state evaluation module 230 is further configured to determine target flow data of the regulating valve at the current opening degree according to the attenuation flow data and the theoretical flow data; and evaluate the state of the regulating valve according to the target flow data and the actual flow data.

[0061] In some embodiments, the state evaluation module 230 is further configured to obtain a plurality of actual flow data of the regulating valve within a preset time period; determine whether each actual flow data is within a preset range based on the target flow data; if a number of actual flow data within the preset range based on the target flow data is greater than or equal to a preset threshold, determine that the state of the regulating valve is normal; and if the number of actual flow data within the preset range based on the target flow data is less than the preset threshold, determine that the state of the regulating valve is abnormal.

[0062] According to the device provided in the embodiments of the present application, the historical running time and the opening degree under the current working state of the regulating valve are determined, the actual flow data of the regulating valve is determined according to the opening degree, and the theoretical flow data matched with the opening degree is determined according to the opening degree and a mapping relationship between the opening degree and the theoretical flow data; and the state of the regulating valve is evaluated according to the historical running time, the actual flow data and the theoretical flow data. The state of the regulating valve is comprehensively evaluated by the historical running time, which can quantify the attenuation degree of the regulating valve, and further evaluate the state of the regulating valve by combining the actual flow data and the theoretical flow data under the opening degree, which can improve the accuracy and timeliness of the state evaluation of the regulating valve, and avoid the problems of low efficiency, difficulty in finding potential failure hidden dangers in time and the like in the traditional manual inspection and regular maintenance mode.

[0063] It should be noted that the state evaluation apparatus of the regulating valve provided in the above embodiments and the state evaluation method of the regulating valve provided in the above embodiments belong to the same concept, wherein the specific manner in which each module and unit performs operations has been described in detail in the method embodiments, and will not be described here. The state evaluation apparatus of the regulating valve provided in the above embodiments can complete the above-described functions in the actual application according to the needs of different functional modules, that is, the internal structure of the apparatus is divided into different functional modules to complete all or part of the above-described functions, and this is not limited herein.

[0064] Embodiments of the present application also provide an electronic device, comprising: one or more processors; a storage device for storing one or more programs, when the one or more programs are executed by the one or more processors, the electronic device implements the method provided in each of the above embodiments.

[0065] Figure 3 The structural schematic diagram of a computer system of an electronic device suitable for implementing embodiments of the present application is shown. It should be noted that, Figure 3 The computer system 300 of the electronic device shown is only an example, and should not bring any limitation to the functions and application scope of the embodiments of the present application.

[0066] As Figure 3 shown, the computer system 300 includes a central processing unit (CPU) 301, which can perform various appropriate actions and processes according to programs stored in a read-only memory (ROM) 302 or programs loaded from a storage portion 308 into a random access memory (RAM) 303, such as performing the method in the above embodiments. In the RAM 303, various programs and data required for system operation are also stored. The CPU 301, the ROM 302, and the RAM 303 are connected to each other through a bus 304. An input / output (I / O) interface 305 is also connected to the bus 304.

[0067] The following components are connected to the I / O interface 305: an input part 306 including a keyboard, a mouse, etc.; an output part 307 including a display such as a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), etc., and a speaker, etc.; a storage part 308 including a hard disk, etc.; and a communication part 309 including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication part 309 performs communication processing via a network such as the Internet. A drive 310 is also connected to the I / O interface 305 as necessary. A removable medium 311 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc. is attached to the drive 310 as necessary, so that a computer program read out therefrom is installed in the storage part 308 as necessary.

[0068] In particular, the processes described above with reference to the flowcharts can be implemented as a computer software program according to embodiments of the present application. For example, embodiments of the present application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing a computer program for executing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via the communication part 309, and / or installed from the removable medium 311. When the computer program is executed by the central processing unit (CPU) 301, various functions defined in the system of the present application are executed.

[0069] It should be noted that the computer-readable medium in the embodiments of the present application can be a computer-readable signal medium or a computer-readable storage medium or any combination of the two. The computer-readable storage medium may, for example, be an electrical, magnetic, optical, electromagnetic, infrared or semiconductor system, device or apparatus, or any combination of the above. More specific examples of the computer-readable storage medium can include, but are not limited to, an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disk read-only memory (Compact Disc Read-Only Memory, CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, the computer-readable signal medium can include a data signal carried in a baseband or as a part of a carrier wave, which carries computer-readable computer programs. Such a propagated data signal can take various forms, including but not limited to an electromagnetic signal, an optical signal, or any suitable combination of the above. The computer-readable signal medium can also be any computer-readable medium other than the computer-readable storage medium, which can send, propagate or transmit programs for use by or in connection with an instruction execution system, apparatus or device. The computer programs contained on the computer-readable medium can be transmitted by any suitable medium, including but not limited to wireless, wired, or the like, or any suitable combination of the above.

[0070] The flowcharts and block diagrams in the drawings illustrate the possible implementation architectures, functions and operations of the systems, methods and computer program products according to various embodiments of the present application. In the flowcharts or block diagrams, each block can represent a module, a program segment or a part of code containing one or more executable instructions for implementing the specified logic function. It should also be noted that in some alternative implementations, the functions noted in the blocks can occur in different order than that shown in the drawings. For example, two blocks that are shown in succession can actually be executed substantially in parallel, and they can also be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams or flowcharts, and the combination of blocks in the block diagrams or flowcharts, can be implemented by a dedicated hardware-based system that performs the specified functions or operations, or can be implemented by a combination of dedicated hardware and computer instructions.

[0071] The units described in the embodiments of the present application can be implemented in the form of software, or can be implemented in the form of hardware, and the units described can also be arranged in a processor. In some cases, the names of the units do not constitute a limitation on the units themselves.

[0072] Another aspect of the present application also provides a computer readable storage medium, which stores a computer program. The computer program is executed by a processor of a computer, so that the computer executes the method described above. The computer readable storage medium can be included in the electronic device described in the above embodiments, or can exist separately and not be assembled into the electronic device.

[0073] Another aspect of the present application also provides a computer program product or a computer program, which includes computer instructions stored in a computer readable storage medium. A processor of a computer device reads the computer instructions from the computer readable storage medium, and the processor executes the computer instructions, so that the computer device executes the method in each of the above embodiments.

[0074] The above 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 embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical thought of the present application should still be covered by the present application.

Claims

1. A method for assessing the condition of a control valve, characterized in that, include: Determine the historical operating time and opening degree of the control valve under current operating conditions; The actual flow rate data of the regulating valve is determined based on the opening degree, and the theoretical flow rate data that matches the opening degree is determined based on the opening degree and the mapping relationship between the opening degree and the theoretical flow rate data. The state of the regulating valve is evaluated based on the historical running time, the actual flow rate data, and the theoretical flow rate data.

2. The method according to claim 1, characterized in that, Before determining the theoretical flow rate data matching the aperture based on the aperture and the mapping relationship between the aperture and the theoretical flow rate data, the method further includes: Obtain multiple initial theoretical flow data of the regulating valve at each opening degree; Outlier processing is performed on multiple initial theoretical flow data for each aperture degree to obtain the outlier processing results; Based on the outlier processing results, the theoretical flow rate data for each opening degree is determined by the average value method, and based on the theoretical flow rate data for each opening degree, the mapping relationship between the opening degree of the regulating valve and the theoretical flow rate data is determined.

3. The method according to claim 1, characterized in that, The step of evaluating the state of the regulating valve based on the historical operating time, the actual flow rate data, and the theoretical flow rate data includes: Based on the historical running time, the device attenuation coefficient of the regulating valve is determined, and based on the device attenuation coefficient and the mapping relationship between the device attenuation coefficient and the attenuation flow data, the attenuation flow data that matches the device attenuation coefficient is determined. The state of the regulating valve is evaluated based on the attenuated flow rate data, the actual flow rate data, and the theoretical flow rate data.

4. The method according to claim 3, characterized in that, Determining the equipment attenuation coefficient of the regulating valve based on the historical operating time includes: Obtain the theoretical service life and historical failure count of the control valve; The runtime decay factor is determined based on the historical runtime and the theoretical usage duration. Based on the historical number of failures, determine the failure count attenuation factor; The equipment attenuation coefficient of the regulating valve is obtained by weighting and summing the runtime attenuation factor and the failure number attenuation factor based on preset weights.

5. The method according to claim 3, characterized in that, The step of evaluating the state of the regulating valve based on the attenuated flow rate data, the actual flow rate data, and the theoretical flow rate data includes: Based on the attenuated flow rate data and the theoretical flow rate data, determine the target flow rate data of the regulating valve at the current opening degree; The state of the regulating valve is evaluated based on the target flow rate data and the actual flow rate data.

6. The method according to claim 5, characterized in that, The step of evaluating the state of the regulating valve based on the target flow rate data and the actual flow rate data includes: Obtain multiple actual flow data of the regulating valve within a preset time period; Determine whether each actual traffic data point is within a preset range based on the target traffic data; If the number of actual flow data points within a preset range based on the target flow data is greater than or equal to a preset threshold, then the state of the regulating valve is determined to be normal. If the number of actual flow data points within a preset range based on the target flow data is less than the preset threshold, then the state of the regulating valve is determined to be abnormal.

7. A condition assessment device for a control valve, characterized in that, include: The first determining module is configured to determine the historical running time of the control valve and the opening degree in the current operating state; The second determining module is configured to determine the actual flow data of the regulating valve based on the opening degree, and to determine the theoretical flow data that matches the opening degree based on the opening degree and a pre-built mapping relationship between the opening degree and the theoretical flow data. The status assessment module is configured to assess the status of the control valve based on the historical runtime, the actual flow data, and the theoretical flow data.

8. An electronic device, characterized in that, include: One or more processors and a memory, wherein the memory stores a computer program that, when executed by the one or more processors, causes the device to perform the method as described in any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, It stores a computer program that, when executed by one or more processors, causes the device to perform the method as described in any one of claims 1 to 6.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the method of any one of claims 1 to 6.

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