Operating control method and system of valve

Abstract

The invention discloses a valve operation control method and system. The method comprises the steps of data collection and preprocessing, task priority judgment, valve health degree evaluation, response speed calculation and valve control operation execution. The system comprises a data acquisition and preprocessing module, a task priority judgment module, a valve health degree evaluation module, a response speed calculation module, a data receiving and transmitting module and an execution module, the task priority judgment module is used for judging the task priority according to a valve operation instruction, and the valve health degree evaluation module is used for evaluating the valve health degree. The response speed calculation module is used for calculating the valve response speed according to the task priority, the valve health degree and the pipeline state data; the method has the beneficial effects that the response speed of the valve is dynamically adjusted according to the task emergency degree, the pipeline state and the valve health state, so that the system has higher adaptive capacity and can cope with variable working environments, the service life of the valve is prolonged, and the safety of a pipeline system is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of valve control, and in particular to a valve operation control method and a valve operation control system. Background Art

[0002] Valves are widely used in various pipeline systems to control the flow of fluids or gases, such as industrial pipelines, petrochemicals, water supply systems, etc. In these systems, the on / off control of valves is crucial, directly affecting the safety, stability and fluid delivery efficiency of the pipeline system.

[0003] In existing valve control systems, the response speed of the valve is usually controlled based on a fixed set value and fails to be dynamically adjusted according to actual conditions. This control method has the following problems: the valve opening response speed cannot be adjusted according to the valve health, which may lead to a decrease in valve life; the valve response speed fails to be adaptively adjusted according to the urgency of the task, which may result in the valve not responding in time in an emergency, thereby affecting the safety of the system.

[0004] Therefore, a valve operation control method and system are proposed. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] The present invention has been proposed in view of the above-mentioned problems.

[0007] Therefore, the purpose of the present invention is to provide a valve operation control method and system, which is used to solve the problems that the prior art cannot adaptively adjust the response speed according to the valve health status and task urgency, which may lead to reduced valve life and reduced system safety.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a valve operation control method, specifically comprising the following steps:

[0009] S1, data acquisition and preprocessing: real-time acquisition, processing and storage of pipeline status data, valve status data, valve fault data and valve opening adjustment data;

[0010] S2, determine the task priority: determine the task priority according to the received valve operation instruction, the operation instruction content includes the valve opening and task type;

[0011] S3, valve health assessment: establish and train a valve health assessment model to assess valve health;

[0012] S4, response speed calculation: the valve response speed is calculated based on the task priority, valve health assessment results and pipeline status data;

[0013] S5, execute valve control operation: calculate the angle of the valve to be rotated according to the valve operation instruction, and perform opening adjustment according to the calculated response speed.

[0014] As a preferred solution of a valve operation control method of the present invention, the pipeline status data in S1 includes pressure, flow and temperature data, and the valve status data includes valve working time and current valve opening.

[0015] As a preferred solution of a valve operation control method of the present invention, the S1 specifically includes:

[0016] S11, periodically collecting pipeline status data and valve status data, and using a Kalman filter to denoise the pipeline status data;

[0017] S12, scaling the denoised pipeline status data in proportion to unify the standard;

[0018] S13, storing the processed pipeline status data in a real-time database and retaining historical data.

[0019] As a preferred solution of a valve operation control method of the present invention, S2 specifically includes:

[0020] S21, establishing a task priority mapping table, wherein entries in the mapping table include task type and task priority;

[0021] S22, when receiving the valve operation instruction, query the mapping table to obtain the task priority, the valve operation instruction content includes the valve opening and the task type.

[0022] As a preferred solution of a valve operation control method of the present invention, S3 specifically includes:

[0023] S31, establishing a valve health assessment model, the input of which is valve working time, valve historical failure data, historical opening adjustment data and pipeline historical status data, and the output is a valve health status index;

[0024] S32, training the valve health assessment model through a large amount of simulation data and actual valve operation data;

[0025] S33, inputting the valve working time, valve historical failure data, historical opening adjustment data and pipeline historical status data into the valve health evaluation model to obtain the valve health status index.

[0026] As a preferred solution of a valve operation control method of the present invention, the valve health index value range is [0, 1], 0 represents completely healthy, and 1 represents completely faulty.

[0027] As a preferred solution of a valve operation control method of the present invention, the calculation formula of the valve response speed is specifically:

[0028]

[0029] Among them, U(t) represents the task priority, and its value range is [0, 1]. P(t), Q(t) and T(t) represent the current pipeline pressure, current pipeline flow and current pipeline temperature respectively. max , Q max and T0 represent the maximum allowable pressure of the pipeline, the maximum allowable flow rate of the pipeline and the reference temperature of the pipeline respectively. H(t) represents the health index of the valve. α, β and γ are the exponential coefficients for adjusting the influence of various factors on the response speed. δ is the health status correction coefficient.

[0030] As a preferred solution of a valve operation control method of the present invention, the calculation formula for the angle of rotation of the valve in S5 is:

[0031] R=R A -R B

[0032] Among them, R A Indicates the target valve opening in the operation instruction, R B Indicates the current opening of the valve. A positive value for R indicates forward rotation, and a negative value indicates reverse rotation.

[0033] Based on the above-mentioned valve operation control method, the present invention additionally provides a valve operation control system, including: a data acquisition and preprocessing module: used for real-time acquisition, processing and storage of pipeline status data, valve status data, valve fault data and valve opening adjustment data;

[0034] Task priority judgment module: used to judge the task priority according to the valve operation instruction;

[0035] Valve health assessment module: used to assess valve health;

[0036] Response speed calculation module: used to calculate valve response speed based on task priority, valve health and pipeline status data;

[0037] Data transceiver module: used to receive valve operation instructions and send pipeline status data, valve status data, valve fault data, valve opening adjustment data and valve health assessment data;

[0038] Execution module: used to perform valve opening adjustment according to the calculated valve response speed.

[0039] As a preferred solution of a valve operation control system of the present invention, the system also includes a display module, which is used to receive and display pipeline status data, valve status data, valve fault data, valve opening adjustment data and valve health assessment data.

[0040] The beneficial effects of the present invention are as follows: by dynamically adjusting the valve response speed according to the task urgency, pipeline status and valve health status, the valve control system has stronger adaptability, can cope with complex and changeable working environments, and is beneficial to improving the valve service life and pipeline system safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0042] Figure 1 The present invention is a flow chart of a valve operation control method. DETAILED DESCRIPTION

[0043] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0044] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0045] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0046] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0047] Example 1

[0048] A valve operation control method comprises the following steps:

[0049] S1, data acquisition and preprocessing: real-time acquisition, processing and storage of pipeline status data, valve status data, valve fault data and valve opening adjustment data. Pipeline status data includes pressure, flow and temperature data. Valve status data includes valve working time and current valve opening.

[0050] Specifically, S1 includes:

[0051] S11, periodically collecting pipeline status data and valve status data, and using a Kalman filter to denoise the pipeline status data;

[0052] S12, scaling the denoised pipeline status data in proportion to unify the standard;

[0053] S13, storing the processed pipeline status data in a real-time database and retaining historical data.

[0054] S2, determine the task priority: determine the task priority according to the received valve operation instruction, the operation instruction content includes the valve opening and task type;

[0055] Specifically, S2 includes:

[0056] S21, establishing a task priority mapping table, wherein entries in the mapping table include task type and task priority;

[0057] S22, when receiving the valve operation instruction, query the mapping table to obtain the task priority, the valve operation instruction content includes the valve opening and the task type.

[0058] S3, valve health assessment: establish and train a valve health assessment model to assess valve health;

[0059] Specifically, S3 includes:

[0060] S31, establishing a valve health assessment model, the input of which is valve working time, valve historical failure data, historical opening adjustment data and pipeline historical status data, and the output is a valve health status index;

[0061] S32, training the valve health assessment model through a large amount of simulation data and actual valve operation data;

[0062] S33, input the valve working time, valve historical failure data, historical opening adjustment data and pipeline historical status data into the valve health assessment model to obtain the valve health status index. The valve health index value range is [0, 1], 0 represents complete health and 1 represents complete failure.

[0063] S4, response speed calculation: the valve response speed is calculated based on the task priority, valve health assessment results and pipeline status data;

[0064] Specifically, the calculation formula for valve response speed is:

[0065]

[0066] Among them, U(t) represents the task priority, and its value range is [0, 1]. P(t), Q(t) and T(t) represent the current pipeline pressure, current pipeline flow and current pipeline temperature respectively. max , Q max and T0 represent the maximum allowable pressure of the pipeline, the maximum allowable flow rate of the pipeline and the reference temperature of the pipeline respectively. H(t) represents the health index of the valve. α, β and γ are the exponential coefficients for adjusting the influence of various factors on the response speed. δ is the health status correction coefficient.

[0067] S5, executing valve control operation: calculating the angle of the valve to be rotated according to the valve operation instruction, and performing opening adjustment according to the calculated response speed;

[0068] Specifically, the calculation formula for the angle at which the valve in S5 needs to rotate is:

[0069] R=R A -R B

[0070] Among them, R A Indicates the target valve opening in the operation instruction, R B Indicates the current opening of the valve. A positive value for R indicates forward rotation, and a negative value indicates reverse rotation.

[0071] A valve operation control system, applicable to the above-mentioned valve operation control method, comprising:

[0072] Data acquisition and preprocessing module: used to collect, process and store pipeline status data, valve status data, valve fault data and valve opening adjustment data in real time;

[0073] Task priority judgment module: used to judge the task priority according to the valve operation instruction;

[0074] Valve health assessment module: used to assess valve health;

[0075] Response speed calculation module: used to calculate valve response speed based on task priority, valve health and pipeline status data;

[0076] Data transceiver module: used to receive valve operation instructions and send pipeline status data, valve status data, valve fault data, valve opening adjustment data and valve health assessment data;

[0077] Execution module: used to perform valve opening adjustment according to the calculated valve response speed.

[0078] It should be noted that the system also includes a display module, which is used to receive and display pipeline status data, valve status data, valve fault data, valve opening adjustment data and valve health assessment data.

[0079] Example 2

[0080] Referring to Table 1, it is a second embodiment of the present invention. This embodiment is different from the first embodiment in that, in order to verify its beneficial effects, experimental comparison data between the present invention and the prior art are provided.

[0081] The purpose of this experiment is to verify the effectiveness of the proposed valve operation control method in practical applications and compare it with existing traditional methods. The specific goal is to improve the valve operation efficiency and system stability by intelligently adjusting the response speed based on the valve health and pipeline real-time status. Through this experiment, we expect to be able to optimize the valve response speed, reduce energy consumption and improve the safety of the pipeline system under different operating conditions.

[0082] Test equipment and materials include:

[0083] Valve: Standard regulating valve, model XYZ-100, driven by electric actuator, with control range of 0° to 90°;

[0084] Pipeline: The experiment uses a straight pipe with an inner diameter of 200 mm and a length of 20 meters to simulate the fluid medium of transporting water;

[0085] Data acquisition and processing system: including sensors, PLC control systems, and intelligent control systems;

[0086] In the experiment, the proposed method was compared with the traditional method based on preset valve operation mode and conventional pressure flow control. The advantages and disadvantages of the two methods were analyzed by recording data such as valve response speed, control accuracy, and system stability.

[0087] The test results are as follows:

[0088]

[0089] Figure 1

[0090] As can be seen from the table above, there are significant differences between traditional methods and innovative methods in terms of response speed and task completion time. In all types of tasks, the innovative method generally has a shorter response speed and a faster task completion time. For example, in the emergency shutdown task, the traditional method takes 8.5 seconds to respond, while the innovative method only takes 5.1 seconds, a reduction of about 40%. Similarly, in routine adjustment and rapid adjustment tasks, the innovative method also showed significant improvement compared to the traditional method.

[0091] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A valve operation control method, characterized in that: The specific steps include: S1, data acquisition and preprocessing: real-time acquisition, processing and storage of pipeline status data, valve status data, valve fault data and valve opening adjustment data; S2, determine the task priority: determine the task priority according to the received valve operation instruction, the operation instruction content includes the valve opening and task type; S3, valve health assessment: establish and train a valve health assessment model to assess valve health; S4, response speed calculation: the valve response speed is calculated based on the task priority, valve health assessment results and pipeline status data; S5, execute valve control operation: calculate the angle of the valve to be rotated according to the valve operation instruction, and perform opening adjustment according to the calculated response speed.

2. A valve operation control method according to claim 1, characterized in that: The pipeline status data in S1 includes pressure, flow and temperature data, and the valve status data includes valve working time and current valve opening.

3. A valve operation control method according to claim 2, characterized in that: The S1 specifically includes: S11, periodically collecting pipeline status data and valve status data, and using a Kalman filter to denoise the pipeline status data; S12, scaling the denoised pipeline status data in proportion to unify the standard; S13, storing the processed pipeline status data in a real-time database and retaining historical data.

4. A valve operation control method according to claim 3, characterized in that: The S2 specifically includes: S21, establishing a task priority mapping table, wherein entries in the mapping table include task type and task priority; S22, when receiving the valve operation instruction, query the mapping table to obtain the task priority, the valve operation instruction content includes the valve opening and the task type.

5. A valve operation control method according to claim 4, characterized in that: The S3 specifically includes: S31, establishing a valve health assessment model, the input of which is valve working time, valve historical failure data, historical opening adjustment data and pipeline historical status data, and the output is a valve health status index; S32, training the valve health assessment model through a large amount of simulation data and actual valve operation data; S33, inputting the valve working time, valve historical failure data, historical opening adjustment data and pipeline historical status data into the valve health evaluation model to obtain the valve health status index.

6. A valve operation control method according to claim 5, characterized in that: The valve health index value range is [0, 1], 0 indicates completely healthy, and 1 indicates completely faulty.

7. A valve operation control method according to claim 6, characterized in that: The calculation formula of the valve response speed is specifically: Among them, U(t) represents the task priority, and its value range is [0, 1]. P(t), Q(t) and T(t) represent the current pipeline pressure, current pipeline flow and current pipeline temperature respectively. max , Q max and T0 represent the maximum allowable pressure of the pipeline, the maximum allowable flow rate of the pipeline and the reference temperature of the pipeline respectively. H(t) represents the health index of the valve. α, β and γ are the exponential coefficients for adjusting the influence of various factors on the response speed. δ is the health status correction coefficient.

8. A valve operation control method according to claim 7, characterized in that: The calculation formula for the angle that the valve in S5 needs to rotate is: R=R A -R B Among them, R A Indicates the target valve opening in the operation instruction, R B Indicates the current opening of the valve. A positive value for R indicates forward rotation, and a negative value indicates reverse rotation.

9. A valve operation control system, characterized in that: include: Data acquisition and preprocessing module: used to collect, process and store pipeline status data, valve status data, valve fault data and valve opening adjustment data in real time; Task priority judgment module: used to judge the task priority according to the valve operation instruction; Valve health assessment module: used to assess valve health; Response speed calculation module: used to calculate valve response speed based on task priority, valve health and pipeline status data; Data transceiver module: used to receive valve operation instructions and send pipeline status data, valve status data, valve fault data, valve opening adjustment data and valve health assessment data; Execution module: used to perform valve opening adjustment according to the calculated valve response speed.

10. The valve operation control system according to claim 9, characterized in that: The system also includes a display module, which is used to receive and display pipeline status data, valve status data, valve fault data, valve opening adjustment data and valve health assessment data.

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