Sensor-based ball valve machining parameter detection method and system, and storage medium

Abstract

The application relates to a sensor-based ball valve machining parameter detection method and system and a storage medium, and relates to the technical field of ball valve machining.The method comprises the following steps: detecting the pressure torque of a ball valve at a preset ball valve posture angle to generate a torque stroke curve and a maximum detection torque and outputting the same; collecting ball valve parameters and medium parameters of the ball valve; analyzing and calculating the ball valve posture angle, the ball valve parameters and the medium parameters according to a preset posture torque model to generate a ball valve reference torque; judging whether the maximum detection torque meets the requirements of the ball valve reference torque; if not, outputting a preset torque unqualified prompt information for prompting; and if yes, analyzing the torque stroke curve to generate a torque detection report and outputting the same.The application has the effect of improving the accuracy of ball valve torque detection.

Description

Technical Field

[0001] This application relates to the technical field of ball valve processing, and in particular to a sensor-based method, system, and storage medium for detecting ball valve processing parameters. Background Technology

[0002] A ball valve is a common type of fluid control valve, named for its opening and closing element, which is a ball with a circular through-hole. By rotating the ball 90 degrees, the medium in the pipeline can be opened or closed. It is widely used in various working conditions such as water, gas, oil, steam, and corrosive media.

[0003] In related technologies, the torque of a ball valve is an important indicator for evaluating whether the ball valve is manufactured to quality. A pressure torque test is typically used to simulate real-world working conditions. The ball valve is laid flat, and a medium with a pressure 1.1 times the maximum working pressure is applied to both ends. The drive unit then controls the valve stem to open and close. A torque sensor on the drive shaft of the drive unit detects the torque value in real time, while an angle encoder records the rotation angle of the valve stem. The torque value and rotation angle are plotted as a torque-angle curve to ensure that the maximum torque does not exceed the safe torque, thus guaranteeing the quality of the ball valve.

[0004] Regarding the aforementioned technologies, current ball valve torque testing is typically conducted with the ball valve lying flat. However, in actual use, ball valves may be in various orientations. When installed at different angles, the pressure of the valve stem on the sealing element, the pressure of the ball core on the valve seat, and the additional torque of the medium on the ball core will all change, resulting in changes in the ball valve torque. Therefore, testing the ball valve torque only in a flat orientation will lead to low accuracy in ball valve torque detection, and there is room for improvement. Summary of the Invention

[0005] To improve the accuracy of ball valve torque detection, this application provides a sensor-based method, system, and storage medium for detecting ball valve machining parameters.

[0006] Firstly, this application provides a sensor-based method for detecting ball valve processing parameters, employing the following technical solution:

[0007] Sensor-based methods for detecting ball valve machining parameters include:

[0008] The ball valve is subjected to pressure torque detection at a preset ball valve posture angle to generate and output the torque stroke curve and the maximum detected torque.

[0009] Collect the ball valve parameters and media parameters;

[0010] The ball valve's attitude angle, parameters, and medium parameters are analyzed and calculated based on a preset attitude torque model to generate the ball valve's reference torque.

[0011] Determine whether the maximum detection torque meets the ball valve reference torque requirements;

[0012] If it does not meet the requirements, a preset torque failure message will be output as a prompt.

[0013] If the conditions are met, the torque stroke curve is analyzed to generate and output a torque test report.

[0014] Optionally, the attitude torque model includes a reference torque model and a correction coefficient model. The step of analyzing and calculating the ball valve attitude angle, ball valve parameters, and medium parameters based on the preset attitude torque model to generate the ball valve reference torque includes:

[0015] The ball valve parameters and medium parameters are substituted into the reference torque model for calculation to generate the reference sealing friction torque, reference ball core friction torque, and reference medium applied torque. The ball valve parameters include the sealing friction coefficient, valve stem diameter, valve stem friction length, ball core friction coefficient, ball core contact area, ball core diameter, and ball core projected area. The medium parameters include the medium applied pressure and the medium pressure difference.

[0016] The ball valve parameters and media parameters are substituted into the correction coefficient model to generate the basic sealing correction coefficient, basic ball core correction coefficient, and basic media correction coefficient. The ball valve parameters include valve stem weight, valve stem diameter, valve stem friction length, ball core weight, ball core contact area, and valve inlet and outlet distance. The media parameters include media density, applied media pressure, and media pressure difference.

[0017] The basic sealing correction coefficient, basic ball core correction coefficient, and basic medium correction coefficient are corrected based on the ball valve attitude angle to generate the sealing friction correction coefficient, ball core friction correction coefficient, and medium application correction coefficient.

[0018] Calculate the product between the reference sealing friction torque and the sealing friction correction coefficient, the reference ball core friction torque and the ball core friction correction coefficient, and the reference medium applied torque and the medium applied correction coefficient, respectively, to generate the corrected sealing friction torque, the corrected ball core friction torque, and the corrected medium applied torque;

[0019] Calculate the sum of the corrected sealing friction torque, the corrected ball core friction torque, and the corrected medium applied torque to generate the ball valve reference torque.

[0020] Optionally, the reference torque model includes a sealing torque model, a spherical core torque model, and a medium torque model, wherein the expression for the sealing torque model is:

[0021] ,

[0022] In the formula, As a reference sealing friction torque, The coefficient of friction for sealing. Apply pressure to the medium. The valve stem diameter is... This refers to the valve stem friction length;

[0023] The expression for the spherical core torque model is as follows:

[0024] ,

[0025] In the formula, As the reference ball core friction torque, The coefficient of friction of the ball core. The contact area of ​​the ball core. The diameter of the sphere's core;

[0026] The expression for the medium torque model is:

[0027] ,

[0028] In the formula, Apply torque to the reference medium. For the pressure difference of the medium, Let be the projected area of ​​the sphere's core.

[0029] Optionally, the correction coefficient model includes a sealing coefficient model, a core coefficient model, and a medium coefficient model, wherein the expression for the sealing coefficient model is:

[0030] ,

[0031] In the formula, Based on the basic sealing correction factor, For the weight of the valve stem, Apply pressure to the medium. The valve stem diameter is... This refers to the valve stem friction length;

[0032] The expression for the core coefficient model is as follows:

[0033] ,

[0034] In the formula, The correction factor for the base ball core. For the gravity of the sphere core, Apply pressure to the medium. The contact area of ​​the sphere core;

[0035] The expression for the dielectric coefficient model is:

[0036] ,

[0037] In the formula, The correction factor for the base medium, For the density of the medium, It is the acceleration due to gravity. The distance between the valve inlet and outlet. This refers to the pressure difference of the medium.

[0038] Optionally, the step of correcting the basic sealing correction coefficient, basic ball core correction coefficient, and basic medium correction coefficient based on the ball valve attitude angle to generate the sealing friction correction coefficient, ball core friction correction coefficient, and medium application correction coefficient includes:

[0039] Calculate the sine function value of the ball valve attitude angle to generate the attitude angle correction coefficient;

[0040] Calculate the product of the attitude angle correction coefficient with the basic seal correction coefficient, the basic sphere core correction coefficient, and the basic medium correction coefficient to generate the attitude seal correction coefficient, attitude sphere core correction coefficient, and attitude medium correction coefficient.

[0041] Collect the actual orientation of the valve stem;

[0042] The attitude sealing correction coefficient, attitude ball core correction coefficient, and attitude medium correction coefficient are corrected based on the actual orientation of the valve stem to generate the sealing friction correction coefficient, ball core friction correction coefficient, and medium application correction coefficient.

[0043] Optionally, the step of correcting the attitude sealing correction coefficient, attitude ball core correction coefficient, and attitude medium correction coefficient based on the actual valve stem orientation to generate the sealing friction correction coefficient, ball core friction correction coefficient, and medium application correction coefficient includes:

[0044] Determine whether the actual orientation of the valve stem is the preset upward or downward orientation.

[0045] If the valve stem is in the preset upward position, the product of the preset reverse correction coefficient, attitude sealing correction coefficient, attitude ball core correction coefficient and attitude medium correction coefficient is calculated to generate the actual sealing correction coefficient, actual ball core correction coefficient and actual medium correction coefficient.

[0046] If the valve stem is in the preset downward position, the product of the preset positive correction coefficient and the attitude sealing correction coefficient, attitude ball core correction coefficient and attitude medium correction coefficient is calculated respectively to generate the actual sealing correction coefficient, actual ball core correction coefficient and actual medium correction coefficient.

[0047] The sums of the preset uncorrected coefficient and the actual sealing correction coefficient, the actual ball core correction coefficient and the actual medium correction coefficient are calculated respectively to generate the sealing friction correction coefficient, the ball core friction correction coefficient and the medium applied correction coefficient.

[0048] Optionally, the steps of analyzing the torque-stroke curve to generate and output a torque test report include:

[0049] Extract the first and second detected torques from the torque-stroke curve; the first and second detected torques are the torques corresponding to adjacent strokes.

[0050] Calculate the rate of change between the first and second detected torques to generate the torque mutation rate;

[0051] Call the valve stem rotation stroke corresponding to the first and second detected torques in the torque stroke curve;

[0052] The valve stem rotation stroke and torque mutation rate are analyzed to generate and output a torque detection report.

[0053] Optionally, the steps of analyzing the valve stem rotation stroke and torque abrupt change rate to generate and output a torque detection report include:

[0054] The corresponding torque reference change rate is found in the preset stroke change relationship based on the valve stem rotation stroke;

[0055] Determine whether the torque mutation rate meets the requirements of the torque reference mutation rate;

[0056] If it does not meet the requirements, the valve stem rotation stroke and the preset valve stem blockage information are correlated to generate and output a torque detection report;

[0057] If the conditions are met, the preset ball valve torque qualification report will be defined as a torque test report and output.

[0058] Secondly, this application provides a sensor-based ball valve processing parameter detection system, which adopts the following technical solution:

[0059] A sensor-based ball valve processing parameter detection system includes:

[0060] The data acquisition module is used to acquire ball valve parameters and media parameters;

[0061] A memory for storing the program of the sensor-based ball valve machining parameter detection method as described in any of the preceding claims;

[0062] The processor and the program in the memory can be loaded and executed by the processor to implement the sensor-based ball valve processing parameter detection method as described in any of the above.

[0063] Thirdly, this application provides a computer storage medium capable of storing corresponding programs, which facilitates improving the accuracy of ball valve torque detection, and adopts the following technical solution:

[0064] A computer-readable storage medium storing a computer program that can be loaded by a processor and executed by any of the above-described sensor-based ball valve machining parameter detection methods.

[0065] In summary, this application includes at least one of the following beneficial technical effects:

[0066] 1. By adjusting the ball valve's posture at different angles, and then performing pressure torque testing on the ball valve, the torque stroke curve and maximum detection torque are obtained. The posture torque model is then used to analyze and calculate the ball valve's posture angle, ball valve parameters, and medium parameters to obtain the ball valve's reference torque at different posture angles. When the maximum detection torque meets the requirements of the ball valve's reference torque, the torque stroke curve is analyzed to obtain and output a torque detection report, thereby improving the accuracy of ball valve torque detection.

[0067] 2. By substituting the ball valve parameters and medium parameters into the correction coefficient model, the reference sealing friction torque, reference ball core friction torque, and reference medium applied torque are calculated, thereby determining the standard values ​​of the three dimensions that form the ball valve torque in the flat state, thus improving the accuracy of subsequent calculations of the ball valve reference torque under different posture angles;

[0068] 3. By calculating the torque mutation rate of the first and second detection torques, if the torque mutation rate does not meet the requirement of the torque reference mutation rate corresponding to the valve stem rotation stroke, it is determined that the valve stem is blocked at this valve stem rotation stroke. Therefore, the valve stem rotation stroke and valve stem blockage information are correlated to generate a torque detection report, thereby improving the accuracy of the torque detection report. Attached Figure Description

[0069] Figure 1 This is a flowchart of a sensor-based ball valve processing parameter detection method in an embodiment of this application.

[0070] Figure 2 This is a flowchart of the steps in this application embodiment to analyze and calculate the ball valve attitude angle, ball valve parameters and medium parameters according to a preset attitude torque model in order to generate the ball valve reference torque.

[0071] Figure 3 This is a flowchart illustrating the steps in this application to correct the basic sealing correction coefficient, basic ball core correction coefficient, and basic medium correction coefficient based on the ball valve's attitude angle, in order to generate the sealing friction correction coefficient, ball core friction correction coefficient, and medium application correction coefficient.

[0072] Figure 4This is a flowchart of the steps in this application embodiment to correct the attitude sealing correction coefficient, attitude ball core correction coefficient, and attitude medium correction coefficient based on the actual orientation of the valve stem, so as to generate the sealing friction correction coefficient, ball core friction correction coefficient, and medium application correction coefficient.

[0073] Figure 5 This is a flowchart of the steps in this application embodiment to analyze the torque stroke curve, generate a torque detection report, and output it.

[0074] Figure 6 This is a flowchart of the steps in this application embodiment to analyze the valve stem rotation stroke and torque mutation rate to generate and output a torque detection report. Detailed Implementation

[0075] To make the purpose, technical solution, and advantages of this application clearer, the following description is provided in conjunction with the appendix. Figures 1 to 6 The present application will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the application.

[0076] Reference Figure 1 This application discloses a sensor-based method for detecting ball valve processing parameters, including the following steps:

[0077] Step S100: Perform pressure torque detection on the ball valve at a preset ball valve posture angle to generate a torque stroke curve and the maximum detected torque and output it.

[0078] In traditional ball valve torque testing, the ball valve is usually placed horizontally. However, in actual use, the pipeline is not always fully horizontal, so the ball valve is not always horizontal either. When the angle of the ball valve changes, the components of friction caused by the weight of the valve stem and the ball core change, and the pressure applied by the medium also changes due to the angle change. At this time, the torque of the ball valve differs from that in the horizontal position. Therefore, the ball valve is tested under pressure according to different ball valve posture angles to obtain the torque stroke curve of the valve stem stroke and torque under different ball valve posture angles, as well as the maximum test torque, which is output on the display screen so that the experimenter can observe the pattern of torque stroke change in real time.

[0079] The ball valve posture angle refers to the angle between the ball valve's axis and the ground. In this embodiment, 0 degrees, 30 degrees, 45 degrees, 60 degrees, and 90 degrees are used as examples. At 0 degrees, the ball valve is in a flat position, and at 90 degrees, the ball valve is in a vertical position. By setting the ball valve posture angle, different installation postures of the ball valve in actual use are simulated to ensure the accuracy of the ball valve torque detection.

[0080] The torque stroke curve refers to the curve showing how the torque of a ball valve changes with the valve stem stroke. During the pressure torque test of a ball valve, an angle encoder collects the rotation angle of the valve stem in real time, typically ranging from 0 to 90 degrees. The torque of the ball valve is detected by a torque sensor on the drive shaft. Thus, the torque stroke curve is plotted with stroke as the horizontal axis and torque as the vertical axis. A ball valve with qualified torque typically exhibits a larger torque at 0 degrees, while the torque remains essentially constant during rotation. By plotting the torque stroke curve, the change in torque can be observed in real time.

[0081] The maximum detection torque refers to the maximum torque of the ball valve. The maximum torque is obtained by sorting the values ​​of the torque sensor by the processing terminal. By detecting the maximum detection torque, an indicator is determined to determine whether the ball valve torque is qualified, which facilitates the evaluation and analysis of whether the ball valve torque is qualified.

[0082] Step S101: Collect the ball valve parameters and medium parameters.

[0083] Among them, ball valve parameters refer to the relevant parameters that affect the torque of the ball valve, including sealing friction coefficient, valve stem diameter, valve stem friction length, ball core friction coefficient, ball core contact area, ball core diameter, ball core projected area, valve stem weight, ball core weight, and valve inlet and outlet distance.

[0084] The sealing friction coefficient refers to the friction coefficient between the sealing element and the valve stem inside the ball valve. The frictional force between the valve stem and the sealing element is a component of the torque. Under different postures, the pressure direction of the valve stem's own weight on the sealing element is different, resulting in changes in the frictional force, which in turn affects the torque. Therefore, the sealing friction coefficient is needed to calculate the changed frictional force. The sealing friction coefficient is related to the material of the sealing element. For example, the friction coefficient of graphite material is taken as 0.2, and the friction coefficient of PTFE material is taken as 0.15. It can be obtained by the operator by consulting the material manual.

[0085] The valve stem diameter refers to the diameter of the valve stem, and the valve stem friction length refers to the contact length between the valve stem and the sealing element. This is obtained by the operator by consulting the ball valve's instruction manual. By determining the valve stem diameter and valve stem friction length, the contact area between the sealing element and the valve stem can be calculated, thereby calculating the uniformly distributed lateral pressure exerted by the sealing element on the valve stem, providing data support for subsequent torque calculations.

[0086] The ball core friction coefficient refers to the friction coefficient between the ball core and the valve seat inside the ball valve. The friction force between the ball core and the valve seat is a component of the torque. Under different postures, the pressure of the ball core's own weight on the valve seat is different, which leads to changes in friction force and thus affects the torque. Therefore, the ball core friction coefficient is needed to calculate the changed friction force. The ball core friction coefficient is related to the materials of the ball core and the valve seat. For example, the friction coefficient between metals is 0.2, while the friction coefficient between metal and PTFE is 0.1.

[0087] The ball core contact area refers to the contact area between the ball core and the valve seat on one side, which is approximately an annular area. The total area is calculated based on the contact diameter, and the orifice area is calculated based on the valve diameter. The contact area is obtained by subtracting the orifice area from the total area. The ball core diameter refers to the diameter of the ball core. The lever arm of the torque between the ball core and the valve seat is the radius of the ball core. Therefore, the lever arm length is determined based on the ball core diameter, and the ball core contact area is calculated to quantify the pressure of the ball core on the valve seat under the action of the medium pressure, providing data support for subsequent calculations of the torque between the ball core and the valve seat.

[0088] The projected area of ​​the sphere core refers to the projected area of ​​the sphere core perpendicular to the direction of medium flow. It is the circular area calculated based on the diameter of the sphere core. The projected area of ​​the sphere core is used to quantify the thrust of the medium on the sphere core, thereby providing data support for the calculation of the influence torque of the medium.

[0089] The valve stem gravity refers to the weight of the valve stem itself, the ball core gravity refers to the weight of the ball core itself, and the distance between the valve inlet and outlet is also considered. By determining the valve stem gravity, the ball core gravity, and the distance between the valve inlet and outlet, data support is provided for subsequently determining the influence of each component along the angle change on the torque.

[0090] Medium parameters refer to the parameters related to the influence of the medium on torque, including medium density, applied medium pressure, and medium pressure difference. Medium density refers to the density value of the medium. Applied medium pressure refers to the pressure of the medium on the ball valve, typically 1.1 times the normal pressure of the ball valve. Medium pressure difference refers to the pressure difference between the inlet and outlet of the ball valve, obtained by subtracting values ​​from the pressure sensor readings. By determining the medium density, applied medium pressure, and medium pressure difference, data support is provided for quantifying the influence of medium pressure changes with angle on torque.

[0091] Step S102: Analyze and calculate the ball valve attitude angle, ball valve parameters and medium parameters according to the preset attitude torque model to generate the ball valve reference torque.

[0092] After collecting the ball valve parameters and medium parameters, the ball valve attitude angle, ball valve parameters and medium parameters are analyzed and calculated according to the attitude torque model. This determines the torque range that the ball valve should have under different attitude angles, obtains the ball valve reference torque, and provides an accurate benchmark comparison value for the ball valve torque test under different attitude angles, ensuring the accuracy of ball valve torque detection.

[0093] The attitude torque model refers to a model for calculating the reference torque of a ball valve under different attitudes. It includes a reference torque model and a correction coefficient model. The reference torque model calculates the torque influenced by the sealing element, ball core, and medium in a horizontal position. The correction coefficient model calculates the degree of influence of the sealing element, ball core, and medium on the torque in a vertical position. (See details...) Figure 2 The steps.

[0094] The ball valve reference torque refers to the standard torque range of the ball valve under different attitude angles. It is obtained by the processing terminal through analysis and calculation of the ball valve attitude angle, ball valve parameters, and medium parameters based on the attitude torque model. By determining the ball valve reference torque, an accurate comparison value is provided for the torque test of the ball valve at different angles, thus ensuring the accuracy of the ball valve torque test.

[0095] Step S103: Determine whether the maximum detection torque meets the requirements of the ball valve reference torque.

[0096] The requirement for the ball valve reference torque refers to the requirement that it be within the range of the ball valve reference torque.

[0097] The processing terminal determines whether the maximum detection torque is within the range of the ball valve's reference torque, thereby determining whether the ball valve's torque is qualified.

[0098] Step S1031: If it does not meet the requirements, output a preset torque non-compliance prompt message.

[0099] If the processing terminal determines that the maximum detection torque is not within the range of the ball valve's reference torque, it indicates that the ball valve's torque is too large, causing difficulty in opening and closing, or the ball valve's torque is too small, causing poor sealing. Therefore, an unqualified torque output message will be displayed.

[0100] The torque failure warning message indicates that the ball valve's torque is unacceptable, and it can be displayed as a pop-up text message.

[0101] Step S1032: If the condition is met, analyze the torque stroke curve to generate and output a torque detection report.

[0102] If the processing terminal determines that the maximum detection torque is within the range of the ball valve's reference torque, it indicates that the ball valve can be opened and closed. Further analysis of the torque stroke curve is needed to determine whether there is any blockage in the ball valve stem, thereby generating and outputting a torque detection report.

[0103] A torque test report is an analysis report on the torque of a ball valve, including a ball valve qualification report or a report on valve stem blockage. It is obtained by analyzing the torque stroke curve at the processing terminal. Specific methods are detailed in [reference needed]. Figure 5 The steps.

[0104] Reference Figure 2 The attitude torque model includes a reference torque model and a correction coefficient model. The steps for generating the ball valve reference torque by analyzing and calculating the ball valve attitude angle, ball valve parameters, and medium parameters based on the preset attitude torque model include:

[0105] Step S200: Substitute the ball valve parameters and medium parameters into the reference torque model to calculate the reference sealing friction torque, reference ball core friction torque, and reference medium applied torque.

[0106] The ball valve parameters and medium parameters are substituted into the reference torque model for calculation to obtain the reference sealing friction torque, reference ball core friction torque, and reference medium applied torque that constitute the ball valve torque in the flat state, thus providing data support for subsequent calculation of the torque after the influence of the attitude angle.

[0107] The reference sealing friction torque refers to the torque generated by the friction between the sealing element and the valve stem under flat conditions. It is calculated by substituting the sealing friction coefficient, valve stem diameter, and valve stem friction length from the ball valve parameters, as well as the applied medium pressure from the medium parameters, into the sealing torque model within the reference torque model. The expression for the sealing torque model is:

[0108] .

[0109] in, As a reference sealing friction torque, The coefficient of friction for sealing. Apply pressure to the medium. The valve stem diameter is... Let be the valve stem friction length. Using a sealing torque model, first calculate the product of the valve stem direct contact and the valve stem friction length to determine the contact area between the valve stem and the sealing element. Then, calculate the product of the medium pressure and the contact area of ​​the sealing element to determine the normal pressure exerted by the sealing element on the valve stem. Finally, calculate the product of the normal pressure and the sealing friction coefficient to determine the friction force. Using the valve stem radius as the lever arm, calculate the product of the friction force and the valve stem radius to obtain the reference sealing friction torque, thus determining a portion of the torque required to form the ball valve in a horizontal position.

[0110] The reference ball core friction torque refers to the torque generated by the friction between the ball core and the valve seat when the valve is placed flat. It is calculated by substituting the ball core friction coefficient, ball core contact area, and ball core diameter from the ball valve parameters, as well as the applied medium pressure from the medium parameters, into the ball core torque model in the reference torque model. The expression for the ball core torque model is:

[0111] .

[0112] in, As the reference ball core friction torque, The coefficient of friction of the ball core. The contact area of ​​the ball core. The diameter of the sphere's core.

[0113] Using the ball core torque model, the normal pressure of the ball core on the valve seat is first determined by calculating the product of the applied pressure of the medium and the contact area of ​​the ball core. Then, the frictional force between the ball core and the valve seat is obtained by calculating the product of the normal pressure and the friction coefficient of the ball core. Thus, the torque on one side is obtained by calculating the product of the frictional force and the radius of the ball core with the radius of the ball core as the lever arm. Since both sides of the ball core are in contact with the valve seat, twice the torque on one side is the reference ball core frictional torque.

[0114] The reference medium applied torque refers to the torque generated by the thrust of the medium on the ball core under a flat state. It is calculated by substituting the ball core diameter and projected area from the ball valve parameters, as well as the medium pressure difference from the medium parameters, into the medium torque model within the reference torque model. The expression for the medium torque model is:

[0115] .

[0116] in, Apply torque to the reference medium. For the pressure difference of the medium, Let be the projected area of ​​the sphere's core.

[0117] Using the medium torque model, the product between the medium pressure difference and the projected area of ​​the sphere is first calculated to obtain the total thrust of the medium on the sphere. Using the radius of the sphere as the lever arm, the product of the total thrust and the radius of the sphere is calculated to obtain the torque applied by the reference medium.

[0118] Step S201: Substitute the ball valve parameters and medium parameters into the correction coefficient model to calculate the basic sealing correction coefficient, basic ball core correction coefficient, and basic medium correction coefficient.

[0119] The basic sealing correction coefficient refers to the influence of the component of the valve stem's self-weight varying along the direction on the torque under vertical orientation. A larger basic sealing correction coefficient results in a greater influence. It is calculated by substituting the valve stem weight, valve stem diameter, and valve stem friction length from the ball valve parameters, as well as the applied medium pressure from the medium parameters, into the sealing coefficient model within the correction coefficient model. The expression for the sealing coefficient model is:

[0120] .

[0121] in, Based on the basic sealing correction factor, For the weight of the valve stem, Apply pressure to the medium. The valve stem diameter is... This is the friction length of the valve stem.

[0122] By using the sealing coefficient model, the normal pressure of the sealing element on the valve stem is calculated based on the applied pressure of the medium, the valve stem diameter, and the valve stem friction length. The normal pressure is used as the denominator, and the valve stem gravity has the greatest influence on the normal pressure under vertical orientation. The valve stem gravity is used as the numerator, and the quotient of the two is calculated to quantify the degree of influence of valve stem gravity on the normal pressure of the sealing element under vertical orientation.

[0123] The basic ball core correction coefficient refers to the degree of influence of the discrete variation of the ball core's self-weight along the direction on the torque under vertical orientation. A larger basic ball core correction coefficient results in a greater impact. It is calculated by substituting the ball core gravity and contact area from the ball valve parameters, as well as the applied medium pressure from the medium parameters, into the ball core coefficient model within the correction coefficient model. The expression for the ball core coefficient model is:

[0124] .

[0125] in, The correction factor for the base ball core. For the gravity of the sphere core, Apply pressure to the medium.

[0126] This represents the contact area of ​​the sphere core.

[0127] By using the ball core coefficient model, the total pressure of the ball core on both valve seats is calculated by multiplying the pressure applied by the medium by twice the contact area of ​​the ball core. Using the total pressure as the denominator, the additional pressure of the ball core's gravity acts on one valve seat in the vertical orientation. Therefore, the quotient of the two is calculated using the ball core's gravity as the numerator, thereby quantifying the influence of the ball core's gravity on the valve seat pressure in the vertical orientation.

[0128] The basic medium correction factor refers to the degree of influence of the static pressure difference of the medium on the torque under vertical orientation. The larger the basic medium correction factor, the greater the impact. It is calculated by substituting the valve inlet and outlet distance from the ball valve parameters, as well as the medium density and medium pressure difference from the medium parameters, into the medium coefficient model in the correction factor model. The expression of the medium coefficient model is:

[0129] .

[0130] in, The correction factor for the base medium, For the density of the medium, It is the acceleration due to gravity. The distance between the valve inlet and outlet. This refers to the pressure difference of the medium.

[0131] Using the medium coefficient model, under vertical orientation, the static pressure difference changes due to the change in the distance of the medium in the vertical direction. Therefore, the current static pressure difference is obtained by calculating the product of the medium density, gravitational acceleration, and the distance between the valve inlet and outlet. Then, the quotient of the current static pressure difference and the medium pressure difference is calculated to quantify the degree of influence of the static pressure difference on the medium pressure difference under vertical orientation.

[0132] Step S202: Correct the basic sealing correction coefficient, basic ball core correction coefficient, and basic medium correction coefficient based on the ball valve attitude angle to generate the sealing friction correction coefficient, ball core friction correction coefficient, and medium application correction coefficient.

[0133] Among them, the sealing friction correction coefficient refers to the direction and extent of the influence of the change in friction between the sealing element and the valve stem on the torque under the current posture angle; the ball core friction correction coefficient refers to the direction and extent of the influence of the change in friction between the ball core and the valve seat on the torque under the current posture angle; and the medium application correction coefficient refers to the direction and extent of the influence of the change in the pressure difference between the medium and the ball core on the torque under the current posture angle. The processing terminal corrects the basic sealing correction coefficient, basic ball core correction coefficient, and basic medium correction coefficient under the vertical posture angle according to the ball valve posture angle to obtain the sealing friction correction coefficient, ball core friction correction coefficient, and medium application correction coefficient under the current ball valve posture angle. The specific method is described in [reference needed]. Figure 3 The steps.

[0134] Step S203: Calculate the product between the reference sealing friction torque and the sealing friction correction coefficient, the reference ball core friction torque and the ball core friction correction coefficient, and the reference medium applied torque and the medium applied correction coefficient, respectively, to generate the corrected sealing friction torque, the corrected ball core friction torque, and the corrected medium applied torque.

[0135] Among them, the corrected sealing friction torque refers to the torque generated by the friction between the valve stem and the sealing element under the current attitude angle, which is obtained by multiplying the base sealing friction torque calculated by the processing terminal and the sealing friction correction coefficient.

[0136] The corrected ball core friction torque refers to the torque generated by the friction between the ball core and the valve seat under the current attitude angle. It is obtained by multiplying the base ball core friction torque calculated by the processing terminal with the ball core friction correction coefficient.

[0137] The corrected medium applied torque refers to the torque generated by the pressure exerted by the medium on the sphere core at the current attitude angle. It is obtained by the product of the reference medium applied torque and the medium applied correction coefficient calculated by the processing terminal.

[0138] Step S204: Calculate the sum of the corrected sealing friction torque, the corrected ball core friction torque, and the corrected medium applied torque to generate the ball valve reference torque.

[0139] In this step, the ball valve reference torque is the same as that in step S102, and is obtained by the processing terminal by calculating the sum of the corrected sealing friction torque, the corrected ball core friction torque, and the corrected medium applied torque.

[0140] Reference Figure 3 The steps for correcting the basic sealing correction coefficient, basic ball core correction coefficient, and basic medium correction coefficient based on the ball valve attitude angle to generate the sealing friction correction coefficient, ball core friction correction coefficient, and medium application correction coefficient include:

[0141] Step S300: Calculate the sine function value of the ball valve attitude angle to generate the attitude angle correction coefficient.

[0142] The attitude angle correction coefficient refers to the degree of influence of the attitude angle on the valve stem weight in the friction between the valve stem and the sealing element, the degree of influence of the ball core weight in the friction between the ball core and the valve seat, and the degree of influence of the vertical distance of the medium in the pressure difference of the medium. When the attitude angle of the ball valve is 90 degrees, that is, in a vertical attitude, the attitude angle correction coefficient is 1, which means the influence is the greatest. When the attitude angle is not 90 degrees, the weight of the valve stem, the weight of the ball core, and the vertical distance of the medium will all produce components in the original direction of action. This component affects the torque. Therefore, by calculating the sine function value of the ball valve attitude angle, the coefficient for calculating this component can be obtained.

[0143] Step S301: Calculate the product of the attitude angle correction coefficient with the basic seal correction coefficient, the basic sphere core correction coefficient and the basic medium correction coefficient respectively to generate the attitude seal correction coefficient, attitude sphere core correction coefficient and attitude medium correction coefficient.

[0144] Among them, the attitude sealing correction coefficient refers to the degree of influence of the change in friction between the sealing element and the valve stem on the torque under the current attitude angle. The product of the attitude angle correction coefficient and the basic sealing correction coefficient is calculated by the processing terminal. The attitude angle correction coefficient is used to correct the component of the valve stem's self-weight in the calculated friction force, thereby obtaining the attitude sealing correction coefficient.

[0145] The attitude ball core correction coefficient refers to the degree of influence of the change in friction force between the ball core and the valve seat on the torque under the current attitude angle. It is calculated by the processing terminal by multiplying the attitude angle correction coefficient and the basic ball core correction coefficient, and then correcting the component of the ball core's self-weight in the calculated friction force with the attitude angle correction coefficient, thus obtaining the attitude ball core correction coefficient.

[0146] The attitude medium correction coefficient refers to the degree of influence of the change in the pressure difference between the medium and the sphere core on the torque under the current attitude angle. It is calculated by the processing terminal by multiplying the attitude angle correction coefficient and the basic medium correction coefficient. The attitude angle correction coefficient is used to correct the component of the vertical distance of the medium in the calculated medium pressure difference, thus obtaining the attitude medium correction coefficient.

[0147] Step S302: Collect the actual orientation of the valve stem.

[0148] The actual orientation of the valve stem refers to its direction, including upward and downward orientation. When the valve stem is downward, the weight of the valve stem and the ball core are downward, increasing the friction between the valve stem and the sealing element, as well as between the ball core and the valve seat, and increasing the thrust of the medium. Its effect on torque is to increase. When the valve stem is upward, the weight of the valve stem and the ball core are downward, offsetting the pressure between the sealing element and the valve stem, as well as between the ball core and the valve seat, thereby reducing friction. The direction of the pressure difference is opposite to the horizontal orientation, offsetting the thrust of the medium. Its effect on torque is to decrease.

[0149] Step S303: Correct the attitude sealing correction coefficient, attitude ball core correction coefficient, and attitude medium correction coefficient based on the actual orientation of the valve stem to generate the sealing friction correction coefficient, ball core friction correction coefficient, and medium application correction coefficient.

[0150] After determining the actual orientation of the valve stem, the processing terminal determines the direction of influence on the torque based on the actual valve stem orientation, thereby correcting the attitude sealing correction coefficient, attitude ball core correction coefficient, and attitude medium correction coefficient to obtain the sealing friction correction coefficient, ball core friction correction coefficient, and medium application correction coefficient. The specific method is described in [reference needed]. Figure 4 The steps.

[0151] Reference Figure 4 The steps for correcting the attitude sealing correction coefficient, attitude ball core correction coefficient, and attitude medium correction coefficient based on the actual orientation of the valve stem to generate the sealing friction correction coefficient, ball core friction correction coefficient, and medium application correction coefficient include:

[0152] Step S400: Determine whether the actual orientation of the valve stem is the preset valve stem upward state or the preset valve stem downward state.

[0153] Among them, the valve stem orientation state refers to the valve stem being in an upward direction. When the valve stem is in an upward direction, the weight of the valve stem and the weight of the ball core are downward, which counteracts the pressure between the sealing element and the valve stem, as well as between the ball core and the valve seat, thereby reducing friction. In addition, the pressure difference direction is opposite to the horizontal orientation, which counteracts the thrust of the medium. The effect on torque is a reduction in the direction.

[0154] The valve stem facing downwards means that the valve stem is in a downward direction. When the valve stem is facing downwards, the weight of the valve stem and the ball core are downwards, which increases the friction between the valve stem and the sealing element, as well as between the ball core and the valve seat, and increases the thrust of the medium. The effect on torque is to increase the direction.

[0155] By processing the terminal to determine whether the valve stem is actually facing upwards or downwards, the direction of the valve stem's influence on the ball valve torque can be determined.

[0156] Step S401: If the valve stem is in the preset upward position, calculate the product of the preset reverse correction coefficient, the attitude sealing correction coefficient, the attitude ball core correction coefficient, and the attitude medium correction coefficient to generate the actual sealing correction coefficient, the actual ball core correction coefficient, and the actual medium correction coefficient.

[0157] If the processing terminal determines that the actual valve stem orientation is upward, it indicates that the valve stem orientation affects the ball valve torque in a decreasing direction. Therefore, the product of the reverse correction coefficient and the attitude sealing correction coefficient, attitude ball core correction coefficient and attitude medium correction coefficient are calculated respectively to determine the actual sealing correction coefficient, actual ball core correction coefficient and actual medium correction coefficient.

[0158] The reverse correction factor is the factor that determines whether the correction factor is in the direction of decreasing torque, which is -1.

[0159] Step S402: If the valve stem is in the preset downward position, calculate the product of the preset positive correction coefficient, the attitude sealing correction coefficient, the attitude ball core correction coefficient, and the attitude medium correction coefficient to generate the actual sealing correction coefficient, the actual ball core correction coefficient, and the actual medium correction coefficient.

[0160] If the processing terminal determines that the actual valve stem orientation is downward, it indicates that the valve stem orientation has an increasing influence on the ball valve torque. Therefore, the product of the positive correction coefficient and the attitude sealing correction coefficient, attitude ball core correction coefficient and attitude medium correction coefficient are calculated respectively to determine the actual sealing correction coefficient, actual ball core correction coefficient and actual medium correction coefficient.

[0161] The positive correction factor is the factor that determines the direction of the correction factor in the direction of increasing torque, which is +1.

[0162] Step S403: Calculate the sum between the preset uncorrected coefficient and the actual sealing correction coefficient, the actual ball core correction coefficient and the actual medium correction coefficient, respectively, to generate the sealing friction correction coefficient, the ball core friction correction coefficient and the medium applied correction coefficient.

[0163] Among them, the no-correction coefficient refers to the coefficient that does not make any correction to the ball valve torque, which is 1. Based on the no-correction coefficient, the actual sealing correction coefficient, the actual ball core correction coefficient, and the actual medium correction coefficient are added to determine the corresponding sealing friction correction coefficient, ball core friction correction coefficient, and medium application correction coefficient.

[0164] Reference Figure 5 The steps for analyzing the torque stroke curve to generate and output a torque test report include:

[0165] Step S500: Extract the first and second detected torques from the torque stroke curve; the first and second detected torques are the torques corresponding to adjacent strokes.

[0166] The first detected torque refers to the torque corresponding to any stroke in the torque stroke curve, and the second detected torque refers to the torque corresponding to the stroke following the first detected torque. The torque is obtained by the processing terminal through a sliding window with a width of 2 in the torque stroke curve. Adjacent torques are extracted to provide data support for analyzing the pattern of stroke changes. For example, at the beginning of the stroke, the static friction is large and the torque is at a large value. However, once the rotation stroke begins, the static friction is converted into dynamic friction, and the torque decreases slightly but remains at a stable and uniform value.

[0167] Step S501: Calculate the rate of change between the first detected torque and the second detected torque to generate the torque mutation rate.

[0168] Among them, the torque mutation rate refers to the rate of change of adjacent torques. The processing terminal calculates the difference between the second detected torque and the first detected torque, and then calculates the quotient of the difference and the first detected torque to obtain the torque mutation rate. By calculating the torque mutation rate, data support is provided for subsequent analysis of whether the torque change pattern at the corresponding stroke is normal.

[0169] Step S502: Call the valve stem rotation stroke corresponding to the first and second detected torques in the torque stroke curve.

[0170] Among them, the valve stem rotation stroke refers to the stroke corresponding to the first and second detected torques. It is obtained by the processing terminal through a sliding window with a width of 2 in the torque stroke curve. By identifying the stroke corresponding to the torque, data support is provided to determine the torque change law that should exist for this stroke.

[0171] Step S503: Analyze the valve stem rotation stroke and torque mutation rate to generate and output a torque detection report.

[0172] In this process, after determining the valve stem rotation stroke and torque mutation rate, the torque variation pattern applied to the valve stem rotation stroke is compared and analyzed with the torque mutation rate to determine whether the valve stem is blocked. A torque detection report is then generated and displayed. The specific method is described in [reference needed]. Figure 6 The steps.

[0173] Reference Figure 6 The steps for analyzing the valve stem rotation stroke and torque mutation rate to generate and output a torque detection report include:

[0174] Step S600: Based on the valve stem rotation stroke, find the corresponding torque reference change rate in the preset stroke change relationship.

[0175] Among them, the stroke mutation relationship refers to the correspondence between different strokes and torque mutation rates. For example, the opening and closing stroke is affected by the friction force conversion and has a larger mutation rate, while the rotation stroke has stable friction and a smaller mutation rate. The operator conducts tests with qualified ball valves and records and analyzes the torque mutation rates of different strokes to form a mapping table.

[0176] The torque reference mutation rate refers to the torque mutation rate when there is no abnormality in the current stroke torque. It is obtained by the processing terminal by looking up the corresponding mapping table of stroke mutation relationship based on the valve stem rotation stroke.

[0177] Step S601: Determine whether the torque mutation rate meets the requirements of the torque reference mutation rate.

[0178] The requirement for the torque reference mutation rate is that it should not exceed the torque reference mutation rate.

[0179] By processing the terminal to determine whether the torque mutation rate is not greater than the torque reference mutation rate, it is possible to determine whether the valve stem is blocked during rotation.

[0180] Step S6011: If not, associate the valve stem rotation stroke with the preset valve stem blockage information to generate and output a torque detection report.

[0181] If the processing terminal determines that the torque mutation rate is greater than the torque reference mutation rate, it indicates that the torque has suddenly increased or decreased. At this time, the valve stem is blocked, resulting in a torque mutation. Therefore, the valve stem rotation stroke and valve stem blockage information are compiled into text to generate a torque detection report and output it.

[0182] Valve stem blockage information refers to the detection result of valve stem blockage, which is stored in the processing terminal by the operator.

[0183] Step S6012: If the condition is met, the preset ball valve torque qualification report is defined as a torque detection report and output.

[0184] If the processing terminal determines that the torque mutation rate is not greater than the torque reference mutation rate, it indicates that the torque change is normal and the ball valve torque is qualified. Therefore, the ball valve torque qualification report is defined as a torque detection report and output.

[0185] The ball valve torque qualification report refers to the result of the ball valve torque test being qualified, which is stored in the processing terminal by the operator.

[0186] Based on the same inventive concept, embodiments of this application provide a sensor-based ball valve processing parameter detection system, including:

[0187] The data acquisition module is used to acquire ball valve parameters, medium parameters, and the actual orientation of the valve stem;

[0188] Memory for storing the program of the sensor-based ball valve machining parameter detection method;

[0189] The processor can load and execute programs in memory to implement a sensor-based method for detecting ball valve machining parameters.

[0190] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device, and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0191] This application provides a computer-readable storage medium storing a computer program that can be loaded by a processor and executed as a sensor-based method for detecting ball valve processing parameters.

[0192] Computer storage media include, for example, USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, optical disks, and other media that can store program code.

[0193] Based on the same inventive concept, embodiments of this application provide a smart terminal, including a memory and a processor, wherein the memory stores a computer program that can be loaded and executed by the processor to perform a sensor-based ball valve processing parameter detection method.

[0194] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device, and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0195] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Any feature disclosed in this specification (including the abstract and drawings) may be replaced by other equivalent or similar features unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is only one example of a series of equivalent or similar features.

Claims

1. A sensor-based method for detecting ball valve machining parameters, characterized in that, include: The ball valve is subjected to pressure torque detection at a preset ball valve posture angle to generate and output the torque stroke curve and the maximum detected torque. Collect the ball valve parameters and medium parameters; The ball valve's attitude angle, parameters, and medium parameters are analyzed and calculated based on a preset attitude torque model to generate the ball valve's reference torque. Determine whether the maximum detection torque meets the ball valve reference torque requirements; If it does not meet the requirements, a preset torque failure message will be output as a prompt. If the conditions are met, the torque stroke curve is analyzed to generate and output a torque test report; By performing pressurized torque detection on the ball valve according to different ball valve posture angles, the torque stroke curve of valve stem stroke and torque and the maximum detection torque are obtained under different ball valve posture angles. The attitude torque model includes a reference torque model and a correction coefficient model. The steps for generating the ball valve reference torque by analyzing and calculating the ball valve attitude angle, ball valve parameters, and medium parameters based on the preset attitude torque model include: The ball valve parameters and medium parameters are substituted into the reference torque model for calculation to generate the reference sealing friction torque, reference ball core friction torque, and reference medium applied torque. The ball valve parameters include the sealing friction coefficient, valve stem diameter, valve stem friction length, ball core friction coefficient, ball core contact area, ball core diameter, and ball core projected area. The medium parameters include the medium applied pressure and the medium pressure difference. The ball valve parameters and media parameters are substituted into the correction coefficient model to generate the basic sealing correction coefficient, basic ball core correction coefficient, and basic media correction coefficient. The ball valve parameters include valve stem weight, valve stem diameter, valve stem friction length, ball core weight, ball core contact area, and valve inlet and outlet distance. The media parameters include media density, applied media pressure, and media pressure difference. The basic sealing correction coefficient, basic ball core correction coefficient, and basic medium correction coefficient are corrected based on the ball valve attitude angle to generate the sealing friction correction coefficient, ball core friction correction coefficient, and medium application correction coefficient. Calculate the product between the reference sealing friction torque and the sealing friction correction coefficient, the reference ball core friction torque and the ball core friction correction coefficient, and the reference medium applied torque and the medium applied correction coefficient, respectively, to generate the corrected sealing friction torque, the corrected ball core friction torque, and the corrected medium applied torque; Calculate the sum of the corrected sealing friction torque, the corrected ball core friction torque, and the corrected medium applied torque to generate the ball valve reference torque.

2. The sensor-based method for detecting ball valve processing parameters according to claim 1, characterized in that, The reference torque model includes a sealing torque model, a spherical core torque model, and a medium torque model. The expression for the sealing torque model is as follows: ， In the formula, As a reference sealing friction torque, The coefficient of friction for sealing. Apply pressure to the medium. The valve stem diameter is... This refers to the valve stem friction length; The expression for the spherical core torque model is as follows: ， In the formula, As the reference ball core friction torque, The coefficient of friction of the ball core. The contact area of ​​the ball core. The diameter of the sphere's core; The expression for the medium torque model is: ， In the formula, Apply torque to the reference medium. For the pressure difference of the medium, Let be the projected area of ​​the sphere's core.

3. The sensor-based method for detecting ball valve processing parameters according to claim 1, characterized in that, The correction coefficient model includes a sealing coefficient model, a core coefficient model, and a medium coefficient model. The expression for the sealing coefficient model is as follows: ， In the formula, Based on the basic sealing correction factor, For the weight of the valve stem, Apply pressure to the medium. The valve stem diameter is... This refers to the valve stem friction length; The expression for the core coefficient model is as follows: ， In the formula, The correction factor for the base ball core. For the gravity of the sphere core, Apply pressure to the medium. The contact area of ​​the sphere core; The expression for the dielectric coefficient model is: ， In the formula, The correction factor for the base medium, For the density of the medium, It is the acceleration due to gravity. The distance between the valve inlet and outlet. This refers to the pressure difference of the medium.

4. The sensor-based ball valve processing parameter detection method according to claim 3, characterized in that, The steps for correcting the basic sealing correction coefficient, basic ball core correction coefficient, and basic medium correction coefficient based on the ball valve attitude angle to generate the sealing friction correction coefficient, ball core friction correction coefficient, and medium application correction coefficient include: Calculate the sine function value of the ball valve attitude angle to generate the attitude angle correction coefficient; Calculate the product of the attitude angle correction coefficient with the basic seal correction coefficient, the basic sphere core correction coefficient, and the basic medium correction coefficient to generate the attitude seal correction coefficient, attitude sphere core correction coefficient, and attitude medium correction coefficient. Collect the actual orientation of the valve stem; The attitude sealing correction coefficient, attitude ball core correction coefficient, and attitude medium correction coefficient are corrected based on the actual orientation of the valve stem to generate the sealing friction correction coefficient, ball core friction correction coefficient, and medium application correction coefficient.

5. The sensor-based method for detecting ball valve processing parameters according to claim 4, characterized in that, The steps for correcting the attitude sealing correction coefficient, attitude ball core correction coefficient, and attitude medium correction coefficient based on the actual valve stem orientation to generate the sealing friction correction coefficient, ball core friction correction coefficient, and medium application correction coefficient include: Determine whether the actual orientation of the valve stem is the preset upward or downward orientation. If the valve stem is in the preset upward position, the product of the preset reverse correction coefficient, attitude sealing correction coefficient, attitude ball core correction coefficient and attitude medium correction coefficient is calculated to generate the actual sealing correction coefficient, actual ball core correction coefficient and actual medium correction coefficient. If the valve stem is in the preset downward position, the product of the preset positive correction coefficient and the attitude sealing correction coefficient, attitude ball core correction coefficient and attitude medium correction coefficient is calculated respectively to generate the actual sealing correction coefficient, actual ball core correction coefficient and actual medium correction coefficient. The sums of the preset uncorrected coefficient and the actual sealing correction coefficient, the actual ball core correction coefficient and the actual medium correction coefficient are calculated respectively to generate the sealing friction correction coefficient, the ball core friction correction coefficient and the medium applied correction coefficient.

6. The sensor-based method for detecting ball valve processing parameters according to claim 1, characterized in that, The steps for analyzing the torque-stroke curve to generate and output a torque test report include: Extract the first and second detected torques from the torque-stroke curve; the first and second detected torques are the torques corresponding to adjacent strokes. Calculate the rate of change between the first and second detected torques to generate the torque mutation rate; Call the valve stem rotation stroke corresponding to the first and second detected torques in the torque stroke curve; The valve stem rotation stroke and torque mutation rate are analyzed to generate and output a torque detection report.

7. The sensor-based method for detecting ball valve processing parameters according to claim 6, characterized in that, The steps for analyzing valve stem rotation stroke and torque abrupt change rate to generate and output a torque detection report include: The corresponding torque reference change rate is found in the preset stroke change relationship based on the valve stem rotation stroke; Determine whether the torque mutation rate meets the requirements of the torque reference mutation rate; If it does not meet the requirements, the valve stem rotation stroke and the preset valve stem blockage information are correlated to generate and output a torque detection report; If the conditions are met, the preset ball valve torque qualification report will be defined as a torque test report and output.

8. A sensor-based ball valve processing parameter detection system, characterized in that, include: The data acquisition module is used to acquire ball valve parameters and media parameters; A memory for storing the program of the sensor-based ball valve machining parameter detection method as described in any one of claims 1 to 7; The processor and the program in the memory can be loaded and executed by the processor to implement the sensor-based ball valve processing parameter detection method as described in any one of claims 1 to 7.

9. A computer-readable storage medium, characterized in that, The computer program is stored and can be loaded by a processor and executed as described in any one of claims 1 to 7, which is a sensor-based method for detecting ball valve machining parameters.

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