Gate valve positioning control system and method

Abstract

The invention discloses a sluice valve positioning control system and method, relates to the technical field of sluice valves, and solves the problem that the accuracy of the sluice valve is deviated in the control process due to the fact that the accuracy of the sluice valve is not further controlled. The execution parameters are adjusted in real time according to the deviation condition, the adjustment amplitude is finely controlled based on the data interval, and blindness of parameter adjustment is avoided; the dynamic correction mechanism can compensate deviation caused by factors such as pipeline working condition changes and executing mechanism abrasion in time, the dynamic accuracy of gate valve control is remarkably improved, and it is ensured that the flow is always matched with the target opening degree.

Description

Technical Field

[0001] This invention relates to the field of gate valve technology, specifically to a gate valve positioning control system and method. Background Technology

[0002] In industrial production, gate valves are key control components of fluid transport systems. The precise positioning of their opening directly affects the stability of process parameters such as flow rate and pressure in the pipeline, which in turn relates to production efficiency, energy consumption control, and system safety.

[0003] Application CN117806289A discloses a gate valve positioning control system and method, comprising: a valve control cloud, storing a gate valve control operation program and transmitting it to a target customer gate control unit via the Internet; a gate control unit, receiving the gate valve control operation program from the valve control cloud and controlling the opening and closing of the gate of the gate valve; a container detection unit, detecting the volume of the injected medium in the container in real time and calculating the difference volume VC between the volume difference and the target volume, transmitting it to the gate control unit in real time; the gate control unit receiving the data transmitted by the container detection unit and calculating and processing the data through the gate valve control operation program; starting to close the gate valve when the difference volume VC equals the medium flow during the gate valve closing process; calculating the container detection unit data through the gate valve control operation program in the gate control unit and starting to close the gate valve in advance; and calculating the flow of the medium during the gate valve closing process to achieve precise closure of the gate valve.

[0004] In the process of positioning control of the gate valve, the opening degree of the gate valve is generally adjusted based on preset parameters. However, in the actual process, there will be control deviations, which will cause the monitored flow rate associated with the corresponding gate valve to deviate synchronously. The accuracy of the gate valve is not further controlled, resulting in deviations in the accuracy of the gate valve during the control process, and failing to achieve a good accuracy control effect. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a gate valve positioning control system and method, which solves the problem of deviations in gate valve accuracy caused by the lack of further control over the gate valve's precision during the control process.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a gate valve positioning control method, comprising the following steps: Step 1: Based on the input control parameters, confirm the associated opening degree of the gate valve, and based on the associated opening degree, confirm the compressed air data associated with the historical process. Verify and confirm the data range, and select the execution parameters from the data range. The specific method is as follows: Confirm the associated opening degree of the gate valve based on the corresponding control parameters, and confirm the compressed air data associated with the corresponding opening degree from historical processing. Several sets of compressed air data are bundled into a data package. The minimum and maximum values ​​are selected from the data package to confirm a set of calibration scalar lines. Based on the confirmed calibration scalar lines, a set of measurement lines is generated. The length of the measurement line in the first stage is one unit shorter than the calibration scalar lines. The unit length is a preset value. The measurement line is controlled to move within the calibration scalar lines. The number of compressed air data G associated with different movement processes is confirmed. Based on the length L of the corresponding measurement line, the characteristic density Md associated with the corresponding movement process is confirmed using the formula: G÷L=Md. The maximum characteristic density Mdmax confirmed in this stage is taken as the stage feature of this stage. Then, the second stage is executed. The measurement line generated in the second stage is two units lower than the calibration scale line. The same confirmation method as the first stage is used to confirm the stage characteristics associated with this stage. Similarly, the characteristics of each stage associated with the subsequent stages are confirmed in turn until the measurement line corresponding to the last stage has only two unit lengths. The locked stage characteristics are compared and verified, and the maximum value is selected. The stage associated with the maximum value is taken as the selected stage. The position of the measurement line corresponding to the selected stage is recorded. The compressed air data associated with the measurement line are confirmed, and the minimum and maximum values ​​are selected as the determined data range. Then, from the confirmed data range, select the middle value of the range as the execution parameter, and control the air source to spray compressed air according to the execution parameter; Step 2: Monitor the flow rate associated with the gate valve and compare the monitored flow rate with the flow rate corresponding to the associated opening degree. Based on the comparison process, determine whether the execution parameters need to be readjusted. The specific method is as follows: The flow rate corresponding to the associated opening degree is denoted as LL, and the monitored flow rate is denoted as Ls. If LL = Ls, no processing is required. If LL ≠ Ls, then confirm the numerical values ​​of LL and Ls: If LL < Ls, then based on the confirmed data range, the execution parameter is lowered by one unit value, with the unit value being a preset value. The associated flow data TL after the adjustment is recorded. The unit change value DB is confirmed using Ls - TL = DB, and the unit value DW to be adjusted is confirmed using (Ls - LL) ÷ TL = DW. The original execution parameter is then reduced, with the specific reduction unit value being DW. If the reduced execution parameter exceeds the original data range, an error signal is generated; otherwise, the adjustment is performed directly. If LL > Ls, then based on the confirmed data range, the execution parameter is increased by one unit value, which is a preset value. The associated flow data TZ after the adjustment is recorded. The unit change value DD is confirmed by TZ-Ls=DD. The unit value DZ to be adjusted is confirmed by (LL-Ls)÷DD=DZ. The original execution parameter is increased by a specific unit value of DZ. If the reduced execution parameter exceeds the original data range, an error signal is generated. Otherwise, the adjustment is performed directly. Step 3: Confirm the pipeline associated with the current gate valve, then monitor and verify the flow rate of the upstream gate valve and the current gate valve in the confirmed pipeline, lock the monitoring period, and perform consistency verification on the flow characteristics associated with the monitoring period to assess whether the pipeline flow is abnormal. The specific method is as follows: Record the flow rate of the upstream gate of the pipeline at the current moment, keep the recorded flow rate parameters unchanged, and record the recorded flow rate data as L1. Then confirm the cross-sectional area and length data associated with the specified pipeline, and confirm the internal volume of the corresponding pipeline based on the cross-sectional area and length data. Based on the internal volume and the confirmed flow data L1, the monitoring period T is determined, where T = internal volume ÷ L1. The initial time of the monitoring period T is the current time, and at the end of the monitoring period T, the flow data L2 associated with the current gate valve at the end time is confirmed. Determine whether L1 and L2 are the same. If they are the same, generate a gate valve control abnormality signal for external personnel to view. If they are not the same, generate a pipeline flow abnormality signal. Step 4: When there is an abnormal flow rate in the pipeline, identify whether there is an acoustic signal from the corresponding sensors on both sides of the pipeline. If so, confirm the location of the pipeline leak point based on the identification result. If not, no action is taken. The specific method is as follows: The reception time of the acoustic signals received by the sensors on both sides is confirmed. Based on the confirmed reception time, the pipe opening with the reception time in front is recorded as the front port, and the pipe opening with the reception time in the back is recorded as the rear port. The time difference Cz between the two sets of reception times is also confirmed. The distance difference CL is determined by the formula Cz×Vs=CL, where Vs is the speed of sound. Based on the overall length CD of the pipeline, the point is locked from inside the pipeline. The distance between the corresponding point and the pre-port is recorded as the pre-port distance, and the distance between the corresponding point and the post-port is recorded as the post-port distance. When the locked point satisfies the condition that post-port distance - pre-port distance = CL, the locked point is recorded as the leak point, and the location is calibrated and displayed.

[0007] Preferably, a gate valve positioning control system includes: The execution parameter confirmation end confirms the associated opening degree of the gate valve based on the input control parameters, confirms the associated compressed air data of the historical process based on the associated opening degree, verifies and confirms the data range, and selects the execution parameters from the data range. The secondary parameter adjustment end monitors the flow rate associated with the gate valve and compares the monitored flow rate with the flow rate corresponding to the associated opening degree. Based on the comparison process, it is determined whether the execution parameters need to be readjusted. The pipeline anomaly assessment end confirms the pipeline associated with the current gate valve, then monitors and verifies the upstream gate valve flow and the current gate valve flow of the confirmed pipeline, locks the monitoring period, verifies the consistency of the flow characteristics associated with the monitoring period, and assesses whether the pipeline flow is abnormal. The leak point confirmation end confirms the time characteristics of the acoustic signals associated with the corresponding sensors on both sides of the pipeline, performs feature verification on the confirmed time characteristics, and confirms the location of the pipeline leak point.

[0008] This invention provides a gate valve positioning control system and method. Compared with the prior art, it has the following advantages: This invention, through the calculation and comparison of feature density, locks out the most representative data interval from different stages, and finally uses the midpoint of the interval as the execution parameter. It not only makes full use of historical operating experience, but also ensures the rationality of parameter selection through scientific density analysis logic, effectively improving the initial accuracy of gate valve opening control and laying a reliable foundation for subsequent regulation. During the operation of the gate valve, the actual flow rate is compared with the theoretical flow rate, and the execution parameters are adjusted in real time to address any deviations. The adjustment range is precisely controlled based on the data range, avoiding blind parameter adjustments. This dynamic correction mechanism can promptly compensate for deviations caused by factors such as changes in pipeline operating conditions and wear of the actuator, significantly improving the dynamic accuracy of the gate valve control and ensuring that the flow rate always matches the target opening. By calculating the monitoring cycle based on the internal volume and flow rate of the pipeline, and comparing the upstream and downstream flow rates within the cycle, it is possible to quickly distinguish whether the flow anomaly stems from a gate valve control issue or a pipeline malfunction (such as leakage or blockage). This avoids misjudging the cause of the anomaly in traditional detection methods and provides a clear direction for subsequent maintenance. Furthermore, by using the time difference between the acoustic signals received by sensors at both ends of the pipeline and the speed of sound propagation, the location of the leak is calculated, demonstrating clear logic and accurate positioning. This mechanism not only quickly identifies leaks but also provides specific location guidance for maintenance. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the method flow of the present invention; Figure 2 This is a schematic diagram of the principle framework of the present invention. Detailed Implementation

[0010] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0011] First Embodiment Please see Figure 1 This application provides a gate valve positioning control method, including the following steps: Step 1: Based on the input control parameters, confirm the associated opening degree of the gate valve, and based on the associated opening degree, confirm the compressed air data associated with the historical process. Verify and confirm the data range, and select the execution parameter from the data range. The specific method for selecting the execution parameter is as follows: The control parameters are input by the operator. The gate valve's associated opening degree is confirmed based on the corresponding control parameters. When the control parameter is 30%, the corresponding associated opening degree is 30%. The compressed air data associated with the corresponding opening degree (that is, the power data associated with the compressed air) is confirmed from the historical data to adjust the gate valve's opening degree. Several sets of compressed air data are bundled into a data package. The minimum and maximum values ​​are selected from the data package to confirm a set of calibration scalar lines. Based on the confirmed calibration scalar lines, a set of measurement lines is generated. The length of the measurement line in the first stage is one unit shorter than the calibration scalar lines. The unit length is a preset value, determined by the operator based on experience. The measurement line is controlled to move within the calibration scalar lines, and the number of compressed air data G associated with different movement processes is confirmed. Based on the length L of the corresponding measurement line, the characteristic density Md associated with the corresponding movement process is confirmed using the formula: G÷L=Md. The maximum characteristic density Mdmax confirmed in this stage is taken as the stage feature of this stage. Then, the second stage is executed. The measurement line generated in the second stage is two units lower than the calibration scale line. The same confirmation method as the first stage is used to confirm the stage characteristics associated with this stage. Similarly, the characteristics of each stage associated with the subsequent stages are confirmed in turn until the measurement line corresponding to the last stage has only two unit lengths. The locked stage characteristics are compared and verified, and the maximum value is selected. The stage associated with the maximum value is taken as the selected stage. The position of the measurement line corresponding to the selected stage is recorded. The compressed air data associated with the measurement line are confirmed, and the minimum and maximum values ​​are selected as the determined data range. Then, from the confirmed data range, select the middle value of the range as the execution parameter, and control the air source to spray compressed air according to the execution parameter; Specifically, based on the compressed air data associated with the corresponding historical process, the minimum and maximum values ​​associated with the corresponding process are identified, thereby locking the corresponding data range. This allows for the construction of the corresponding calibration length line, and the generation of the corresponding measurement line based on the length standard. The calibration line is then selected and moved using the measurement line. In the specific execution process, several processing stages are identified, each with different stage characteristics. From these different processing stages, the specific data range is confirmed, and the specific execution parameters are selected to ensure the initial control process of the gate valve and guarantee control accuracy. Step 2: Monitor the flow rate associated with the gate valve and compare it with the flow rate corresponding to the associated opening degree. Based on the comparison process, determine whether the execution parameters need to be readjusted to ensure the accurate control process of the gate valve. The specific method for readjustment is as follows: The flow rate corresponding to the associated opening degree is denoted as LL, and the monitored flow rate is denoted as Ls. If LL = Ls, no processing is required. If LL ≠ Ls, then confirm the numerical values ​​of LL and Ls: If LL < Ls, then based on the confirmed data range, the execution parameter is lowered by one unit value. The unit value is a preset value, which is determined in advance by the operator based on experience. The associated flow data TL after the adjustment is recorded. The unit change value DB is confirmed by Ls-TL=DB, and the unit value DW to be adjusted is confirmed by (Ls-LL)÷TL=DW. The original execution parameter is then reduced, and the specific reduction unit value is DW. If the reduced execution parameter exceeds the original data range, an error signal is generated; otherwise, the adjustment is performed directly. If LL > Ls, then based on the confirmed data range, the execution parameter is increased by one unit value, which is a preset value determined in advance by the operator based on experience. The associated flow data TZ after the adjustment is recorded. The unit change value DD is confirmed by using TZ-Ls=DD, and the unit value DZ to be adjusted is confirmed by using (LL-Ls)÷DD=DZ. The original execution parameter is then increased by a specific unit value of DZ. If the reduced execution parameter exceeds the original data range, an error signal is generated; otherwise, adjustment is performed directly. Specifically, when the corresponding gate valve is opened to a specified degree, but the actual flow rate detected differs significantly from the corresponding flow rate, it indicates a large error. In order to minimize the error, the associated execution parameters are adjusted. Based on the specific adjustment process, the execution parameters are adaptively adjusted. If the execution parameters to be achieved after adjustment exceed the corresponding data range, it indicates a large deviation in the monitored data, which means that the corresponding gate valve has a specific abnormality. It is necessary to confirm the cause of the abnormality and identify whether there is a leak in the corresponding pipeline. Step 3: Confirm the pipeline associated with the current gate valve, then monitor and verify the upstream gate valve flow and the current gate valve flow in the confirmed pipeline, lock the monitoring period, and perform consistency verification on the flow characteristics associated with the monitoring period to assess whether the pipeline flow is abnormal. The specific assessment method is as follows: Record the flow rate of the upstream gate of the pipeline at the current moment, keep the recorded flow rate parameters unchanged, and record the recorded flow rate data as L1. Then confirm the cross-sectional area and length data associated with the specified pipeline, and confirm the internal volume of the corresponding pipeline based on the cross-sectional area and length data. Based on the internal volume and the confirmed flow data L1, the monitoring period T is determined, where T = internal volume ÷ L1. The initial time of the monitoring period T is the current time, and at the end of the monitoring period T, the flow data L2 associated with the current gate valve at the end time is confirmed. The system assesses whether L1 and L2 are the same. If they are the same, it means that there is no abnormality in the corresponding pipeline. It means that there is an abnormality in the current gate valve during the adjustment process, which causes the monitored flow to be abnormal. The system directly generates a gate valve control abnormality signal for external personnel to view. If they are not the same, a pipeline flow abnormality signal is generated. Subsequently, based on the pipeline flow abnormality signal, the abnormal point in the pipeline is surveyed to identify whether there is a leak in the pipeline and to display the specific information. Step 4: When there is an abnormal flow rate in the pipeline, identify whether there is an acoustic signal from the corresponding sensors on both sides of the pipeline. If there is, confirm the location of the pipeline leak point based on the identification result. If there is no signal, no action is taken. Specifically, when there is an abnormal flow rate in the pipeline, it means that there is a leak in the pipeline, which will generate an acoustic signal due to the presence of the leak point. The leak point can be located based on the time difference between the corresponding acoustic signals. Conversely, if there is no leak in the pipeline but the flow rate is abnormal, it means that there is a blockage or other situation inside the pipeline, and manual inspection is required to determine the abnormality. The specific method for confirming the location of the pipeline leak is as follows: The reception time of the acoustic signals received by the sensors on both sides is confirmed. Based on the confirmed reception time, the pipe opening with the reception time in front is recorded as the front port, and the pipe opening with the reception time in the back is recorded as the rear port. The time difference Cz between the two sets of reception times is also confirmed. The distance difference CL is determined by the formula Cz×Vs=CL, where Vs is the speed of sound. Then, based on the overall length CD of the pipeline, the point is locked from inside the pipeline. The distance between the corresponding point and the pre-port is recorded as the pre-port distance, and the distance between the corresponding point and the post-port is recorded as the post-port distance. When the locked point satisfies the condition that post-port distance - pre-port distance = CL, the locked point is recorded as the leak point, and the location is calibrated and displayed. Specifically, when a leak point exists in the corresponding pipeline, the time difference of the associated time is confirmed based on the time relationship of the corresponding received signals. Then, the location is confirmed from the confirmed time difference, the associated difference data is identified, and the point is locked from it. The corresponding leak point location is then confirmed for easy display.

[0012] Second Embodiment Combination Figure 2 A gate valve positioning control system, comprising: The execution parameter confirmation end confirms the associated opening degree of the gate valve based on the input control parameters, confirms the associated compressed air data of the historical process based on the associated opening degree, verifies and confirms the data range, and selects the execution parameters from the data range. The secondary parameter adjustment end monitors the flow rate associated with the gate valve and compares the monitored flow rate with the flow rate corresponding to the associated opening degree. Based on the comparison process, it is determined whether the execution parameters need to be readjusted. The pipeline anomaly assessment end confirms the pipeline associated with the current gate valve, then monitors and verifies the upstream gate valve flow and the current gate valve flow of the confirmed pipeline, locks the monitoring period, verifies the consistency of the flow characteristics associated with the monitoring period, and assesses whether the pipeline flow is abnormal. The leak point confirmation end confirms the time characteristics of the acoustic signals associated with the corresponding sensors on both sides of the pipeline, performs feature verification on the confirmed time characteristics, and confirms the location of the pipeline leak point.

[0013] Some of the data in the above formulas are numerical calculations with dimensions removed, and the contents not described in detail in this specification are all prior art known to those skilled in the art.

[0014] The above embodiments are only used to illustrate the technical methods of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of the present invention without departing from the spirit and scope of the technical methods of the present invention.

Claims

1. A gate valve positioning control method, characterized in that, Includes the following steps: Step 1: Based on the input control parameters, confirm the associated opening degree of the gate valve, and based on the associated opening degree, confirm the compressed air data associated with the historical process, verify the data range, and select the execution parameters from the data range. Step 2: Monitor the flow rate associated with the gate valve and compare the monitored flow rate with the flow rate corresponding to the associated opening degree. Based on the comparison process, determine whether the execution parameters need to be readjusted. Step 3: Confirm the pipeline associated with the current gate valve, then monitor and verify the upstream gate valve flow and the current gate valve flow of the confirmed pipeline, lock the monitoring period, verify the consistency of the flow characteristics associated with the monitoring period, and assess whether the pipeline flow is abnormal. Step 4: When there is an abnormal flow rate in the pipeline, identify whether there is an acoustic signal from the corresponding sensors on both sides of the pipeline. If there is, confirm the location of the pipeline leak point based on the identification result. If there is no signal, no action is taken.

2. The gate valve positioning control method according to claim 1, characterized in that, In step one, the specific method for selecting the execution parameters is as follows: Confirm the associated opening degree of the gate valve based on the corresponding control parameters, and confirm the compressed air data associated with the corresponding opening degree from historical processing. Several sets of compressed air data are bundled into a data package. The minimum and maximum values ​​are selected from the data package to confirm a set of calibration scalar lines. Based on the confirmed calibration scalar lines, a set of measurement lines is generated. The length of the measurement line in the first stage is one unit shorter than the calibration scalar lines. The unit length is a preset value. The measurement line is controlled to move within the calibration scalar lines. The number of compressed air data G associated with different movement processes is confirmed. Based on the length L of the corresponding measurement line, the characteristic density Md associated with the corresponding movement process is confirmed using the formula: G÷L=Md. The maximum characteristic density Mdmax confirmed in this stage is taken as the stage feature of this stage. Then, the second stage is executed. The measurement line generated in the second stage is two units lower than the calibration scale line. The same confirmation method as the first stage is used to confirm the stage characteristics associated with this stage. Similarly, the characteristics of each stage associated with the subsequent stages are confirmed in turn until the measurement line corresponding to the last stage has only two unit lengths. The locked stage characteristics are compared and verified, and the maximum value is selected. The stage associated with the maximum value is taken as the selected stage. The position of the measurement line corresponding to the selected stage is recorded. The compressed air data associated with the measurement line are confirmed, and the minimum and maximum values ​​are selected as the determined data range. Then, from the confirmed data range, select the middle value of the range as the execution parameter, and control the air source to spray compressed air according to the execution parameter.

3. The gate valve positioning control method according to claim 1, characterized in that, In step two, the specific method for readjusting the execution parameters is as follows: The flow rate corresponding to the associated opening degree is denoted as LL, and the monitored flow rate is denoted as Ls. If LL = Ls, no processing is required.

4. The gate valve positioning control method according to claim 3, characterized in that, If LL ≠ Ls, then confirm the numerical values ​​of LL and Ls: If LL < Ls, then based on the confirmed data range, the execution parameter is lowered by one unit value, with the unit value being a preset value. The associated flow data TL after the adjustment is recorded. The unit change value DB is confirmed using Ls - TL = DB, and the unit value DW to be adjusted is confirmed using (Ls - LL) ÷ TL = DW. The original execution parameter is then reduced, with the specific reduction unit value being DW. If the reduced execution parameter exceeds the original data range, an error signal is generated; otherwise, the adjustment is performed directly. If LL > Ls, then based on the confirmed data range, the execution parameter is increased by one unit value, which is a preset value. The associated flow data TZ after the adjustment is recorded. The unit change value DD is confirmed by TZ-Ls=DD. The unit value DZ to be adjusted is confirmed by (LL-Ls)÷DD=DZ. The original execution parameter is increased by a specific unit value of DZ. If the reduced execution parameter exceeds the original data range, an error signal is generated. Otherwise, the adjustment is performed directly.

5. The gate valve positioning control method according to claim 1, characterized in that, In step three, the specific method for assessing whether the pipeline flow rate is abnormal is as follows: Record the flow rate of the upstream gate of the pipeline at the current moment, keep the recorded flow rate parameters unchanged, and record the recorded flow rate data as L1. Then confirm the cross-sectional area and length data associated with the specified pipeline, and confirm the internal volume of the corresponding pipeline based on the cross-sectional area and length data. Based on the internal volume and the confirmed flow data L1, the monitoring period T is determined, where T = internal volume ÷ L1. The initial time of the monitoring period T is the current time, and at the end of the monitoring period T, the flow data L2 associated with the current gate valve at the end time is confirmed. Determine if L1 and L2 are the same. If they are the same, generate a gate valve control anomaly signal for external personnel to view. If they are not the same, generate a pipeline flow anomaly signal.

6. The gate valve positioning control method according to claim 5, characterized in that, In step four, the specific method for confirming the location of the pipeline leak is as follows: The reception time of the acoustic signals received by the sensors on both sides is confirmed. Based on the confirmed reception time, the pipe opening with the reception time in front is recorded as the front port, and the pipe opening with the reception time in the back is recorded as the rear port. The time difference Cz between the two sets of reception times is also confirmed. The distance difference CL is determined by the formula Cz×Vs=CL, where Vs is the speed of sound. Based on the overall length CD of the pipeline, the point is locked from inside the pipeline. The distance between the corresponding point and the pre-port is recorded as the pre-port distance, and the distance between the corresponding point and the post-port is recorded as the post-port distance. When the locked point satisfies the condition that post-port distance - pre-port distance = CL, the locked point is recorded as the leak point, and the location is calibrated and displayed.

7. A gate valve positioning control system, wherein the system operates according to a gate valve positioning control method according to any one of claims 1-6, characterized in that, include: The execution parameter confirmation end confirms the associated opening degree of the gate valve based on the input control parameters, confirms the associated compressed air data of the historical process based on the associated opening degree, verifies and confirms the data range, and selects the execution parameters from the data range. The secondary parameter adjustment end monitors the flow rate associated with the gate valve and compares the monitored flow rate with the flow rate corresponding to the associated opening degree. Based on the comparison process, it is determined whether the execution parameters need to be readjusted. The pipeline anomaly assessment end confirms the pipeline associated with the current gate valve, then monitors and verifies the upstream gate valve flow and the current gate valve flow of the confirmed pipeline, locks the monitoring period, verifies the consistency of the flow characteristics associated with the monitoring period, and assesses whether the pipeline flow is abnormal. The leak point confirmation end confirms the time characteristics of the acoustic signals associated with the corresponding sensors on both sides of the pipeline, performs feature verification on the confirmed time characteristics, and confirms the location of the pipeline leak point.

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