Matching parameter analysis method, device and equipment for valve clack and valve seat

Abstract

The application relates to a wedge-shaped gate valve disc seat matching parameter analysis method and device, computer equipment, a storage medium and a computer program product. The method comprises the following steps: three-dimensionally scanning a valve seat and a valve disc of a gate valve to construct a valve seat three-dimensional model and a valve disc three-dimensional model; after the valve seat three-dimensional model and the valve disc three-dimensional model are assembled, valve seat data and valve disc data are determined; according to the valve seat data and the valve disc data, the thickness of an outer edge of a valve disc sealing surface required by valve disc seat matching is obtained, and the machining amount of the outer edge of the valve disc sealing surface is obtained, so that the valve disc and the valve seat can be accurately matched, the number of valve disc grinding and the number of blue oil tests are reduced, the grinding workload is reduced, and the efficiency of valve seat and valve disc matching is improved.

Description

Technical Field

[0001] This application relates to the field of wedge gate valves, and in particular to a method, apparatus, computer equipment, storage medium, and computer program product for analyzing matching parameters of valve disc and valve seat. Background Technology

[0002] Internal valve maintenance typically involves grinding or complete valve replacement. However, there is no comprehensive technology for online replacement of valve seats in high-voltage discharge valves. Furthermore, online seat replacement in this technology is affected by welding deformation of the seat ring, leading to an angle change and a mismatch between the valve disc and seat angles, thus failing to meet sealing requirements. While grinding can achieve matching between the valve disc and seat within the valve cavity, mismatches or insufficient matching can occur. In such cases, the blue oil test fails. The only solution is to grind the valve seat flat and then perform angle correction grinding on the valve disc based on the blue oil test results.

[0003] Replacing a valve disc often requires passing more than five blue oil tests to confirm its suitability. Due to the valve disc's weight, replacing a new valve disc typically takes 2-5 days to complete. During the valve disc replacement process, the valve disc needs to be ground multiple times according to the blue oil test, which greatly increases the grinding time, resulting in a long replacement time and very low valve disc replacement efficiency. Summary of the Invention

[0004] Therefore, it is necessary to provide a method, apparatus, computer equipment, computer-readable storage medium, and computer program product for analyzing matching parameters of valve discs and valve seats that can achieve precise matching of valve discs and valve seats, in order to address the above-mentioned technical problems.

[0005] Firstly, this application provides a method for analyzing the matching parameters of a valve disc and valve seat. The method includes:

[0006] Obtain the scanning data of the valve seat of the wedge gate valve and construct a three-dimensional model of the valve seat;

[0007] Scan the valve disc of the wedge gate valve and construct a three-dimensional model of the valve disc;

[0008] Match the 3D model of the valve seat and the 3D model of the valve disc to determine the valve seat data and valve disc data;

[0009] Based on the valve seat data and the valve disc data, determine the thickness required for valve disc and valve seat matching at the outer edge of the valve disc sealing surface;

[0010] The machining allowance of the outer edge of the valve disc sealing surface is determined based on the thickness required for matching the valve disc and valve seat at the outer edge of the valve disc sealing surface. The machining allowance of the outer edge of the valve disc sealing surface is used to indicate the machining of the outer edge of the valve disc sealing surface to achieve the assembly and matching of the valve disc and valve seat.

[0011] In one embodiment, the scanning of the wedge gate valve seat and the construction of a three-dimensional model of the seat include:

[0012] 3D scanning confirmed that both sides of the valve seat were ground flat.

[0013] Scan the valve seat sealing surface, guide rail surfaces, and middle flange to construct a 3D model of the valve seat;

[0014] Alternatively, the scanning of the wedge gate valve seat to construct a three-dimensional model of the valve disc includes:

[0015] 3D scanning confirmed that both sides of the valve disc were ground flat.

[0016] The valve disc sealing surface, guide rail surfaces, and middle flange are scanned to construct a three-dimensional model of the valve disc.

[0017] In one embodiment, matching the three-dimensional model of the valve seat and the three-dimensional model of the valve disc to determine the valve seat data and valve disc data includes:

[0018] The valve seat 3D model and valve disc 3D model are matched to construct a 3D wedge gate valve solid model;

[0019] Based on the three-dimensional model of the wedge gate valve, the valve seat data and valve disc data are determined.

[0020] In one embodiment, the valve seat data includes: valve seat outer diameter, valve seat inner diameter, and distance between the outer edges of the two valve seat sealing surfaces; the valve disc data includes: valve disc included angle, valve disc sealing surface outer diameter, valve disc sealing surface inner diameter, and thickness at the outer edge of the valve disc sealing surface.

[0021] In one embodiment, determining the thickness required for valve disc-seat matching at the outer edge of the valve disc sealing surface based on the valve seat data and the valve disc data includes:

[0022] Based on the wear and tear, a preset value is added to the thickness of the outer edge of the valve disc sealing surface;

[0023] Determine the vertical distance between the outer edge of the top of the valve disc sealing surface and the outer edge of the valve seat sealing surface based on the outer diameter of the valve seat, the outer diameter of the valve disc sealing surface, and the included angle of the valve disc.

[0024] Based on the preset valve disc thickness, the distance between the outer edges of the valve seat sealing surface, and the vertical distance between the top outer edge of the valve disc sealing surface and the outer edge of the valve seat sealing surface, the thickness required to achieve valve disc-valve seat matching at the outer edge of the valve disc sealing surface is determined.

[0025] In one embodiment, the step of determining the machining allowance of the outer edge of the valve disc sealing surface based on the thickness required for matching the valve disc and valve seat at the outer edge of the valve disc sealing surface; the machining allowance of the outer edge of the valve disc sealing surface is used to indicate the machining of the outer edge of the valve disc sealing surface to achieve the assembly and matching of the valve disc and valve seat, including:

[0026] The machining allowance for the outer edge of the valve disc sealing surface is determined based on the thickness at the outer edge of the valve disc sealing surface and the required thickness at the outer edge of the valve disc sealing surface.

[0027] The valve disc sealing surface is ground according to the machining allowance of the outer edge of the valve disc sealing surface.

[0028] Secondly, this application also provides a device for analyzing the matching parameters of a valve disc and valve seat. The device includes:

[0029] The valve seat scanning module is used to acquire scanning data of the valve seat of the wedge gate valve and construct a three-dimensional model of the valve seat.

[0030] The valve disc scanning module is used to scan the valve disc of a wedge gate valve and construct a three-dimensional model of the valve disc.

[0031] The matching module is used to match the 3D model of the valve seat and the 3D model of the valve disc to determine the valve seat data and valve disc data.

[0032] The calculation module is used to determine the thickness required for valve disc and valve seat matching at the outer edge of the valve disc sealing surface based on the valve seat data and the valve disc data.

[0033] The machining module is used to determine the machining amount of the outer edge of the valve disc sealing surface based on the thickness required for matching the valve disc and valve seat at the outer edge of the valve disc sealing surface; the machining amount of the outer edge of the valve disc sealing surface is used to indicate the machining of the outer edge of the valve disc sealing surface to achieve the assembly and matching of the valve disc and valve seat.

[0034] Thirdly, this application also provides a computer device. The computer device includes a memory and a processor, the memory storing a computer program, and the processor executing the computer program to perform the following steps:

[0035] Obtain the scanning data of the valve seat of the wedge gate valve and construct a three-dimensional model of the valve seat;

[0036] Scan the valve disc of the wedge gate valve and construct a three-dimensional model of the valve disc;

[0037] Match the 3D model of the valve seat and the 3D model of the valve disc to determine the valve seat data and valve disc data;

[0038] Based on the valve seat data and the valve disc data, determine the thickness required for valve disc and valve seat matching at the outer edge of the valve disc sealing surface;

[0039] The machining allowance of the outer edge of the valve disc sealing surface is determined based on the thickness required for matching the valve disc and valve seat at the outer edge of the valve disc sealing surface. The machining allowance of the outer edge of the valve disc sealing surface is used to indicate the machining of the outer edge of the valve disc sealing surface to achieve the assembly and matching of the valve disc and valve seat.

[0040] Fourthly, this application also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program thereon, which, when executed by a processor, performs the following steps:

[0041] Obtain the scanning data of the valve seat of the wedge gate valve and construct a three-dimensional model of the valve seat;

[0042] Scan the valve disc of the wedge gate valve and construct a three-dimensional model of the valve disc;

[0043] Match the 3D model of the valve seat and the 3D model of the valve disc to determine the valve seat data and valve disc data;

[0044] Based on the valve seat data and the valve disc data, determine the thickness required for valve disc and valve seat matching at the outer edge of the valve disc sealing surface;

[0045] The machining allowance of the outer edge of the valve disc sealing surface is determined based on the thickness required for matching the valve disc and valve seat at the outer edge of the valve disc sealing surface. The machining allowance of the outer edge of the valve disc sealing surface is used to indicate the machining of the outer edge of the valve disc sealing surface to achieve the assembly and matching of the valve disc and valve seat.

[0046] Fifthly, this application also provides a computer program product. The computer program product includes a computer program that, when executed by a processor, performs the following steps:

[0047] Obtain the scanning data of the valve seat of the wedge gate valve and construct a three-dimensional model of the valve seat;

[0048] Scan the valve disc of the wedge gate valve and construct a three-dimensional model of the valve disc;

[0049] Match the 3D model of the valve seat and the 3D model of the valve disc to determine the valve seat data and valve disc data;

[0050] Based on the valve seat data and the valve disc data, determine the thickness required for valve disc and valve seat matching at the outer edge of the valve disc sealing surface;

[0051] The machining allowance of the outer edge of the valve disc sealing surface is determined based on the thickness required for matching the valve disc and valve seat at the outer edge of the valve disc sealing surface. The machining allowance of the outer edge of the valve disc sealing surface is used to indicate the machining of the outer edge of the valve disc sealing surface to achieve the assembly and matching of the valve disc and valve seat.

[0052] The aforementioned method, apparatus, computer equipment, storage medium, and computer program product for analyzing matching parameters of gate valve disc and seat construct 3D models of the valve seat and valve disc by 3D scanning the valve seat and valve disc. After assembling the 3D models of the valve seat and valve disc, the valve seat data and valve disc data are determined. Based on the valve seat data and valve disc data, the thickness at the outer edge of the valve disc sealing surface required for valve disc and seat matching, as well as the machining amount at the outer edge of the valve disc sealing surface, are obtained. This enables the valve disc and valve seat to be accurately matched, thereby reducing the number of valve disc grinding and blue oil tests, reducing the grinding workload, and improving the efficiency of valve seat and valve disc matching. Attached Figure Description

[0053] Figure 1 This is a diagram illustrating the application environment of the valve disc and valve seat matching parameter analysis method in one embodiment.

[0054] Figure 2 This is a flowchart illustrating a method for analyzing the matching parameters of a valve disc and valve seat in one embodiment.

[0055] Figure 3 This is a flowchart illustrating the process of determining valve seat data and flip-board data in one embodiment;

[0056] Figure 4 This is a schematic diagram of a cross-section of a wedge gate valve seat in one embodiment;

[0057] Figure 5 This is a schematic diagram of the side of the wedge gate valve disc in one embodiment;

[0058] Figure 6 This is a schematic diagram of the other side of the wedge gate valve disc in one embodiment;

[0059] Figure 7 This is a schematic diagram illustrating the process of matching the required thickness of the valve seat at the outer edge of the valve disc sealing surface in one embodiment.

[0060] Figure 8 This is an example diagram of the gap between the valve disc sealing surface A and one embodiment.

[0061] Figure 9 This is a flowchart illustrating the matching parameter analysis method for valve disc and valve seat in another embodiment;

[0062] Figure 10 This is a structural block diagram of a valve disc and valve seat matching parameter analysis device in one embodiment;

[0063] Figure 11 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0064] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0065] The valve disc and valve seat matching parameter analysis method provided in this application embodiment can be applied to, for example... Figure 1 In the application environment shown, the 3D scanner 102 scans the valve seat and valve disc, acquiring scan data of the wedge gate valve seat and valve disc respectively, and sends these scan data to the processing device 104. The processing device 104 acquires the scan data of the wedge gate valve seat and constructs a 3D model of the valve seat; acquires the scan data of the wedge gate valve disc and constructs a 3D model of the valve disc; matches the 3D models of the valve seat and valve disc to determine the valve seat data and valve disc data; based on the valve seat data and valve disc data, determines the thickness required for valve disc and valve seat matching at the outer edge of the valve disc sealing surface; based on the thickness required for valve disc and valve seat matching at the outer edge of the valve disc sealing surface, determines the machining allowance of the outer edge of the valve disc sealing surface; the machining allowance of the outer edge of the valve disc sealing surface is used to indicate the machining of the outer edge of the valve disc sealing surface to achieve the assembly and matching of the valve disc and valve seat. The 3D scanner 102 can be a laser scanner, etc., and the processing device 104 can be a computer device with computing capabilities, including but not limited to computer terminals, controllers, etc.

[0066] In one embodiment, such as Figure 2 As shown, a method for analyzing the matching parameters of a valve disc and valve seat is provided. This method is applied to... Figure 1 The execution terminal includes the following steps:

[0067] Step 202: Scan the valve seat of the wedge gate valve and construct a three-dimensional model of the valve seat.

[0068] A wedge gate valve is a type of gate valve, named for the wedge shape formed by the angle between its sealing surfaces and the vertical centerline, i.e., the two valve seat sealing surfaces. Due to this angle, wedge gate valves offer superior sealing performance and can withstand higher pressures. The removable and replaceable internal parts include the valve seat, valve disc, gland, gasket, guide device, bushing, and internal spring. When defects exist in the gate valve's sealing surface, internal repair work is required to re-match the valve seat and valve disc.

[0069] Previously, matching the valve disc and seat within the valve cavity was achieved through grinding. If the valve disc and seat did not match or had a poor match after seat replacement, the blue oil test would fail. The only solution was to grind the valve seat flat and then perform angle correction grinding on the valve disc based on the blue oil test results. This process required multiple grinding operations to achieve proper matching between the valve seat and valve disc. Secondly, manual measurement of the valve disc was impractical because the selection of corresponding test points on the valve disc's sealing surface could not be standardized, and the asymmetrical arrangement of the wedge-shaped surfaces relative to the valve body axis resulted in significant measurement errors. This made it impossible to obtain the distance between points on the sealing surface of the wedge gate valve seat manually on-site. To address these issues, a 3D scanning method was introduced to quickly obtain relatively accurate data on the valve seat, valve body, and valve disc.

[0070] Specifically, after confirming that the valve seat sealing surface has been ground flat using 3D scanning, the valve seat of the wedge gate valve is scanned from all angles to form a 3D model of the wedge valve seat.

[0071] Step 204: Scan the valve disc of the wedge gate valve and construct a three-dimensional model of the valve disc.

[0072] The removable and replaceable internal parts of the gate valve that come into contact with the flowing medium include the valve seat, valve disc, gland, gasket, guide device, bushing, and internal spring, wherein the valve seat provides a sealing surface for the valve disc.

[0073] After confirming that the valve disc sealing surface has been ground smooth using 3D scanning, the valve disc of the wedge gate valve is scanned from all angles to create a 3D model of the wedge valve seat. Specifically, a new type of laser scanner can be used to scan the valve disc of the wedge gate valve.

[0074] Step 206: Match the 3D model of the valve seat and the 3D model of the valve disc to determine the valve seat data and valve disc data.

[0075] Establish a three-axis coordinate system and coordinate origin for the valve seat model and valve disc model. Assemble the valve disc model onto the valve seat model using assembly software to construct a three-dimensional model of a wedge gate valve. Extract the required valve seat data and valve disc data from the three-dimensional model through data extraction.

[0076] Step 208: Based on the valve seat data and valve disc data, determine the thickness required for valve disc and valve seat matching at the outer edge of the valve disc sealing surface.

[0077] Since the valve seat and valve disc are ground, the valve disc sealing surface is a plane. When determining the thickness of the outer edge of the valve disc that matches the valve seat, because the valve disc sealing surface is a plane, it is only necessary to determine the thickness at certain points on the outer edge of the valve disc. In this application, four points are taken clockwise from the valve seat sealing surface: the 12 o'clock, 3 o'clock, 6 o'clock, and 9 o'clock points, which correspond to the highest, right, lowest, and left sides of the valve disc. It can be understood that when the thickness at the four points of 12 o'clock, 3 o'clock, 6 o'clock, and 9 o'clock on the outer edge of the valve disc is determined, the valve disc can be ground according to the thickness at these four points to make the valve disc and valve seat match.

[0078] Specifically, valve seat and valve disc data are extracted from the 3D model. Using this data, the thickness at points 12, 3, 6, and 9 on the outer edge of the valve disc sealing surface is calculated when the valve seat and valve disc are matched. In the case of precise valve disc-seat matching, to ensure the valve disc does not slip, the outer edge of the blue oil line at the bottom of the valve disc sealing surface coincides with the outer edge of the valve disc sealing surface. "Valve disc slippage" refers to a situation where, after multiple grindings of the valve seat or valve disc, the valve disc sealing surface shifts downwards relative to its pre-grinding state. At this point, the thickness at point 6 on the valve disc matches the distance between the bottom edges of the two valve seat sealing surfaces. Since the outer diameter of the valve disc sealing surface is larger than the outer diameter of the valve seat, the thickness at points 12, 6, and 9 on the outer edge of the valve disc sealing surface has an increment relative to the distance between the corresponding points on the outer edges of the two valve seat sealing surfaces.

[0079] Step 210: Determine the machining allowance of the outer edge of the valve disc sealing surface based on the thickness required for matching the valve disc and valve seat at the outer edge of the valve disc sealing surface; the machining allowance of the outer edge of the valve disc sealing surface is used to indicate the machining of the outer edge of the valve disc sealing surface to achieve the assembly and matching of the valve disc and valve seat.

[0080] Based on the thickness required for valve disc and valve seat matching at the outer edge of the valve disc sealing surface, and the thickness at four points (12, 3, 6, and 9) on the selected outer edge of the valve disc sealing surface, calculate the machining allowance at these four points. Based on the machining allowance at these four points, machine the valve disc sealing surface to achieve a precise match between the valve disc and valve seat.

[0081] In this embodiment, a three-dimensional model of the valve seat and valve disc is constructed by scanning the valve seat and valve disc of the gate valve in three dimensions. After the three-dimensional models of the valve seat and valve disc are assembled, the valve seat data and valve disc data are determined. Based on the valve seat data and valve disc data, the thickness at the outer edge of the valve disc sealing surface required for valve disc and valve seat matching, as well as the machining amount at the outer edge of the valve disc cover, are obtained. This enables the valve disc and valve seat to be accurately matched, thereby reducing the number of valve disc grinding times and blue oil tests, reducing the grinding workload, and improving the efficiency of valve seat and valve disc matching.

[0082] In one embodiment, acquiring the scanning data of the wedge gate valve seat and constructing a three-dimensional model of the valve seat includes: confirming that the two sides of the valve seat are ground flat by three-dimensional scanning; acquiring the scanning data of the wedge valve seat sealing surface, each surface of the guide rail, and the middle flange, and constructing a three-dimensional model of the valve seat.

[0083] Specifically, the sealing surfaces of both valve seats are ground until they are flat. A laser scanner is used to perform a 3D scan of the valve seat sealing surfaces to confirm that they are flat. After confirming that both sides of the valve seat are ground flat, the valve seat sealing surfaces, guide rail surfaces, and middle flange are scanned to construct a 3D model of the valve seat.

[0084] In this embodiment, the sealing surfaces on both sides of the valve seat are confirmed to be flat by using a laser scanner. Based on this, a three-dimensional model of the valve seat is constructed by scanning the valve seat sealing surface, each surface of the guide rail, and the middle flange. Valve seat data can be extracted from the three-dimensional model of the valve seat.

[0085] In one embodiment, acquiring the scanning data of the valve disc of a wedge gate valve and constructing a three-dimensional model of the valve disc includes: confirming that the two sides of the valve disc are ground flat by three-dimensional scanning; acquiring the scanning data of the valve disc sealing surface, each surface of the guide rail, and the middle flange, and constructing a three-dimensional model of the valve disc.

[0086] The sealing surfaces of both valve discs are ground until they are flat. A laser scanner is used to perform a 3D scan of the valve disc sealing surfaces to confirm that they are flat. After confirming that both sides of the valve disc are ground flat, the valve disc sealing surfaces, guide rail surfaces, and center flange are scanned to construct a 3D model of the valve disc. Because the sealing surfaces of the valve seat and valve disc are ground flat before scanning, as long as the included angle between the valve seat and valve disc is matched, the sealing surfaces of the valve seat and valve disc can be matched. Therefore, accurate valve seat and valve disc data can be obtained through the 3D models of the valve seat and valve disc.

[0087] In this embodiment, the sealing surfaces on both sides of the valve disc are confirmed to be flat by a laser scanner. Based on this, a three-dimensional model of the valve disc is constructed by scanning the valve disc sealing surface, each surface of the guide rail, and the middle flange. Valve seat data and valve disc data can be extracted through the three-dimensional model of the valve seat and the three-dimensional model of the valve disc, thereby providing conditions for matching the valve seat and the valve disc.

[0088] In one embodiment, such as Figure 3 As shown, the 3D model of the valve seat and the 3D model of the valve disc are matched to determine the valve seat data and valve disc data, including:

[0089] Step 302: Match the three-dimensional model of the valve seat and the three-dimensional model of the valve disc to construct a three-dimensional wedge gate valve model.

[0090] Specifically, a three-axis coordinate system and coordinate origin are established for the three-dimensional model of the valve seat, and a three-axis coordinate system and coordinate origin are established for the three-dimensional model of the valve disc. The valve disc model is then assembled onto the valve body and valve seat model using assembly software to form a three-dimensional wedge gate valve model.

[0091] Step 304: Determine the valve seat data and valve disc data based on the three-dimensional wedge gate valve model.

[0092] Data extraction is performed on the three-dimensional wedge gate valve model to obtain the assembly gap at each point on the outer edge of the valve disc and valve seat after assembly, as well as valve seat data and valve disc data, such as the outer diameter and inner diameter of the valve seat, the outer diameter and inner diameter of the valve disc sealing surface, and the distance between the outer edges of the two valve seats.

[0093] In this embodiment, by establishing a three-axis coordinate system and coordinate origin for the three-dimensional models of the valve seat and valve disc, the valve disc model and valve seat model are assembled to obtain a three-dimensional wedge gate valve model. The assembly gaps at each point on the outer edge of the valve disc and valve seat after assembly, as well as the valve seat data and valve disc data, are obtained.

[0094] In one embodiment, the valve seat data includes: the valve seat outer diameter, the valve seat inner diameter, and the distance between the outer edges of the two valve seat sealing surfaces; the valve disc data includes: the valve disc included angle, the valve disc sealing surface outer diameter, the valve disc sealing surface inner diameter, and the thickness at the outer edge of the valve disc sealing surface.

[0095] like Figure 4 As shown, the two opposing components are the valve seats of a wedge gate valve. The outer and inner diameters of the valve seats are represented by D and d, respectively. The distances between the outer edges of the sealing surfaces of the two valve seats at the four o'clock, 3 o'clock, 6 o'clock, and 9 o'clock positions are e1, e2, e3, and e4, respectively. Figure 5 As shown, the outer diameter of the valve disc sealing surface is represented by D0, and the inner diameter is represented by d0. The valve disc angle is the angle formed by the two valve seat sealing surfaces, which can be denoted as α. Figure 6 As shown, the thicknesses at the outer edge of the valve disc sealing surface to be machined are T1, T2, T3, and T4, which correspond to the 12 o'clock, 3 o'clock, 6 o'clock, and 9 o'clock positions clockwise facing the valve seat sealing surface, respectively.

[0096] In one embodiment, such as Figure 7 As shown, based on the valve seat data and valve disc data, the required thickness at the outer edge of the valve disc sealing surface to achieve valve disc-valve seat matching is determined, including the following steps:

[0097] Step 702: Based on the grinding consumption, add a preset thickness to the thickness of the outer edge of the valve disc sealing surface.

[0098] Considering scanning deviation and grinding consumption, the thickness required for valve disc and valve seat matching at the outer edge of the valve disc sealing surface should include both scanning deviation and grinding consumption. Therefore, a preset valve disc thickness is added. The preset valve disc thickness is determined by the scanning instrument error and the consumption during the grinding process. In this embodiment, the 3D scanning deviation is taken as 0.03mm, and the grinding deviation is taken as 0.05mm. Therefore, an extra 0.1mm margin is left on both sides of the valve disc sealing surface. Thus, for the entire valve disc, a margin of 0.2mm is required, i.e., a preset thickness of 0.2mm is added.

[0099] Step 704: Determine the vertical distance between the top outer edge of the valve disc sealing surface and the outer edge of the valve seat sealing surface based on the valve seat outer diameter, the valve disc sealing surface outer diameter, and the valve disc included angle.

[0100] To ensure the valve disc doesn't slip off the seat, the outer edge of the blue oil line at the bottom of the valve disc sealing surface needs to coincide with the outer edge of the valve disc sealing surface. When the outer edge of the blue oil line at the bottom of the valve disc sealing surface exactly coincides with the outer edge of the valve disc sealing surface, (D0-D)*tan(α / 2) is the vertical distance between the position of the top blue oil line edge and the top sealing surface edge. In other words, (D0-D)*tan(α / 2) is due to the valve disc's outer diameter being larger than the valve seat's outer diameter, resulting in an additional thickness at the 12, 3, 6, and 9 o'clock positions on the outer edge of the valve disc sealing surface compared to the thickness at the same points on the outer edge of the valve seat sealing surface. This additional thickness is the vertical distance between the position of the top blue oil line edge and the top sealing surface edge.

[0101] Step 706: Based on the preset valve disc thickness, the distance between the outer edges of the valve seat sealing surface, and the vertical distance between the top outer edge of the valve disc sealing surface and the outer edge of the valve seat sealing surface, determine the thickness required for valve disc and valve seat matching at the outer edge of the valve disc sealing surface.

[0102] When matching the valve disc and valve seat, the required thickness of the outer edge of the valve disc sealing surface at the four points of 12 o'clock, 3 o'clock, 6 o'clock, and 9 o'clock is denoted as T respectively. 1L T 2L T 3L T 4LThe required thickness at point 6 on the outer edge of the valve disc sealing surface is the sum of the distance between the outer edges of the two valve seat sealing surfaces at point 6 and the preset thickness. This is because it is necessary to ensure that the valve disc does not slip off the seat, so that the outer edge of the blue oil line at the bottom of the valve disc sealing surface coincides with the outer edge of the valve disc sealing surface. Based on this, the required thickness at point 3 on the outer edge of the valve disc sealing surface needs to be increased by an additional thickness (D0 - D) * tan(α / 2) compared to the thickness at point 3 on the valve seat. It can be understood that points 3 and 9 on the outer edge of the valve disc sealing surface are symmetrical, and the required thickness at point 3 is the same as the required thickness at point 9. That is, the required thickness at point 9 is also based on the required thickness at point 6 on the outer edge of the valve disc sealing surface, plus an additional thickness (D0 - D) * tan(α / 2) compared to the thickness at point 3 on the valve seat. As for the required thickness at the 12 o'clock position on the outer edge of the valve disc sealing surface, an additional thickness of (D0-D)*tan(α / 2) is added on the basis of the thickness at the 3 o'clock position on the outer edge of the valve disc sealing surface. That is, the required thickness at the 12 o'clock position on the outer edge of the valve disc sealing surface is the same as the thickness at the 3 o'clock position on the valve seat sealing surface, with two additional thicknesses added: 2*(D0-D)*tan(α / 2).

[0103] Required thickness at 6 o'clock on the outer edge of the valve disc sealing surface: T 3L =e3+0.2, the required thickness at three points on the outer edge of the valve disc sealing surface: T 2L =e² + 0.2 + (D0 - D) * tan(α / 2), the required thickness at the 9 o'clock position on the outer edge of the valve disc sealing surface: T 4L =e4+0.2+(D0-D)*tan(α / 2), the required thickness at 12 o'clock on the outer edge of the valve disc sealing surface: T 1L =e1+0.2+2*(D0-D)*tan(α / 2).

[0104] In this embodiment, by analyzing the relationship between the bottom outer edge of the valve disc sealing surface and the outer edge of the valve seat sealing surface, as well as the relationship between the valve disc sealing surface at points 12, 6, and 9 on the outer edge of the valve seat sealing surface, the required thickness at point 6 on the valve disc sealing surface is determined. Based on this, the required thickness at points 12, 6, and 9 on the valve disc sealing surface to match the valve seat is determined, providing accurate thickness data for the grinding process of the valve disc, thereby achieving precise matching between the valve disc and the valve seat.

[0105] In one embodiment, the machining allowance of the outer edge of the valve disc sealing surface is determined based on the thickness required for valve disc and valve seat matching at the outer edge of the valve disc sealing surface; the machining allowance of the outer edge of the valve disc sealing surface is used to indicate machining of the outer edge of the valve disc sealing surface to achieve assembly matching of the valve disc and valve seat, including: determining the machining allowance of the outer edge of the valve disc sealing surface based on the thickness at the outer edge of the valve disc sealing surface and the required thickness at the outer edge of the valve disc sealing surface; and grinding the valve disc sealing surface based on the machining allowance of the outer edge of the valve disc sealing surface.

[0106] The required thickness at the 12 o'clock position on the outer edge of the valve disc sealing surface is T. 1L The required thickness at three points on the outer edge of the valve disc sealing surface is T. 2L The required thickness at 6 points on the outer edge of the valve disc sealing surface is T. 3L The required thickness at the 9 o'clock position on the outer edge of the valve disc sealing surface is T. 4L The thicknesses at the 12 o'clock, 3 o'clock, 6 o'clock, and 9 o'clock positions on the outer edge of the valve disc sealing surface to be machined are T1, T2, T3, and T4, respectively. The machining allowance at the 12 o'clock position on the outer edge of the valve disc sealing surface is Δ1 = (T1 - T4). 1L ) / 2, the machining amount Δ2 at 3 points on the outer edge of the valve disc sealing surface is Δ2 = (T2 - T) / 2. 2L ) / 2, the machining allowance at 6 points on the outer edge of the valve disc sealing surface is Δ3=(T3-T 3L The machining allowance at point 9 on the outer edge of the valve disc sealing surface is Δ4 = (T4 - T) / 2. 4L ) / 2.

[0107] Based on the machining allowance at the outer edge of the valve disc sealing surface, the lathe is controlled to machine the valve disc sealing surface according to the machining allowance. Alternatively, the worker grinds the valve disc sealing surface according to the machining allowance at the outer edge of the valve disc sealing surface, thereby achieving a match between the valve seat and the valve disc.

[0108] In this embodiment, the machining amount of the outer edge of the valve disc sealing surface is determined based on the thickness at the outer edge of the valve disc sealing surface and the required thickness at the outer edge of the valve disc sealing surface. The valve disc sealing surface is then ground according to the machining amount to achieve precise matching between the valve seat and the valve disc, greatly reducing the number of grinding operations and grinding time, as well as the number of blue oil tests, thereby improving the matching efficiency between the valve seat and the valve disc.

[0109] To verify the matching parameter analysis method for the wedge gate valve disc and seat proposed in this application, a blue oil test was conducted on the valve disc and seat. The results of the blue oil test were compared with the results determined in this application to determine the reliability of the matching parameter analysis method. Specifically, the blue oil test was conducted on the valve disc and seat to obtain the clearance between the sealing surfaces of the two valve seats and the machining allowance of the valve disc sealing surface. This application uses a three-dimensional wedge gate valve model to determine the clearance at each point on the sealing surfaces on both sides of the valve disc. The clearance at each point on surface A of the valve disc sealing surface is shown in the figure. Figure 8The reliability of the calculation method proposed in this application is determined by comparing the gap between the sealing surfaces of the two valve seats and the machining amount of the valve disc sealing surface. As shown in Table 1, the trend of the gap of sealing surface A in the valve disc and valve seat matching parameter analysis is consistent with the gap of sealing surface A in the blue oil test. The gap at 12 o'clock is the smallest. Relative to 12 o'clock, the gaps at 3 o'clock and 6 o'clock increase sequentially. At 9 o'clock, the gap decreases based on 6 o'clock, and the amount of increase or decrease in gap is also proportional. The results of the blue oil test on the gap of sealing surface B are also consistent with the valve disc and valve seat matching parameter analysis method. Trend analysis of the machining amount of sealing surfaces A and B is also performed. It is found that the trend of the machining amount of the outer edge of the valve disc sealing surface obtained by the blue oil test and this application is consistent. The data match within the allowable error range. Therefore, the matching parameter analysis method of wedge gate valve disc and valve seat provided in this application is feasible in actual maintenance and has good results.

[0110] Table 1 compares the matching parameters of the valve disc and valve seat with the gap in the blue oil test.

[0111]

[0112] like Figure 9 As shown, this application provides a method for analyzing the matching parameters of a wedge gate valve disc and seat, including the following steps:

[0113] Step 902: 3D scanning confirms that both sides of the valve seat are ground flat.

[0114] Step 904: Obtain the valve seat sealing surface, guide rail surfaces, and middle flange of the wedge gate valve, and construct a three-dimensional model of the valve seat.

[0115] Step 906: 3D scanning confirms that both sides of the valve disc are ground flat.

[0116] Step 908: Obtain the valve disc sealing surface, guide rail surfaces, and middle flange of the wedge gate valve, and construct a three-dimensional model of the valve disc.

[0117] Step 910: Match the 3D model of the valve seat and the 3D model of the valve disc to construct a 3D wedge gate valve model.

[0118] Step 912: Based on the three-dimensional model of the wedge gate valve, determine the valve seat data and valve disc data; wherein, the valve seat data includes: valve seat outer diameter, valve seat inner diameter, and distance between the outer edges of the two valve seat sealing surfaces; the valve disc data includes: valve disc included angle, valve disc sealing surface outer diameter, valve disc sealing surface inner diameter, and thickness at the outer edge of the valve disc sealing surface.

[0119] Since the valve seat and valve disc are ground, the valve disc sealing surface is a plane. When determining the thickness of the outer edge of the valve disc that matches the valve seat, since the valve disc sealing surface is a plane, it is only necessary to determine the thickness at certain points on the outer edge of the valve disc. In this application, four points are taken clockwise from the valve seat sealing surface: the 12 o'clock, 3 o'clock, 6 o'clock, and 9 o'clock points, which correspond to the highest, right, lowest, and left sides of the valve disc. It can be understood that when the thickness at the four points of 12 o'clock, 3 o'clock, 6 o'clock, and 9 o'clock on the outer edge of the valve disc is determined, the valve disc can be ground according to the thickness at these four points to make the valve disc and valve seat match. Step 914: Determine the vertical distance between the top outer edge of the valve disc sealing surface and the outer edge of the valve seat sealing surface based on the outer diameter of the valve seat, the outer diameter of the valve disc sealing surface, and the valve disc angle.

[0120] To ensure that the valve disc does not fall off the mat, the outer edge of the blue oil line at the bottom of the valve disc sealing surface needs to coincide with the outer edge of the valve disc sealing surface. When the outer edge of the blue oil line at the bottom of the valve disc sealing surface coincides with the outer edge of the valve disc sealing surface, (D0-D)*tan(α / 2) is the vertical distance between the position of the top blue oil line edge and the top sealing surface edge.

[0121] Step 916: Based on the grinding consumption, add a preset value to the thickness of the outer edge of the valve disc sealing surface.

[0122] Considering scanning deviation and grinding consumption, the thickness required for valve disc and valve seat matching at the outer edge of the valve disc sealing surface should include scanning deviation and grinding consumption. Therefore, a preset valve disc thickness is added. The preset valve disc thickness is determined by the error of the scanning instrument and the amount of consumption during the grinding process.

[0123] Step 918: Based on the preset valve disc thickness, the distance between the outer edges of the valve seat sealing surface, and the vertical distance between the top outer edge of the valve disc sealing surface and the outer edge of the valve seat sealing surface, determine the thickness required for valve disc and valve seat matching at the outer edge of the valve disc sealing surface.

[0124] like Figure 4 and 6As shown, when matching the valve disc and valve seat, the required thickness at point 6 on the outer edge of the valve disc sealing surface is the sum of the distance between the outer edges of the two valve seat sealing surfaces at point 6 and the preset thickness. This is because it's necessary to ensure the valve disc doesn't slip off the seat, so that the outer edge of the blue oil line at the bottom of the valve disc sealing surface coincides with the outer edge of the valve disc sealing surface. Based on this, the required thickness at point 3 on the outer edge of the valve disc sealing surface needs to be increased by an additional thickness (D0 - D) * tan(α / 2) compared to the thickness at point 3 on the valve seat. It can be understood that points 3 and 9 on the outer edge of the valve disc sealing surface are symmetrical, and the required thickness at point 3 is the same as the required thickness at point 9. That is, the required thickness at point 9 is also based on the required thickness at point 6 on the outer edge of the valve disc sealing surface, plus an additional thickness (D0 - D) * tan(α / 2) compared to the thickness at point 3 on the valve seat. As for the required thickness at the 12 o'clock position on the outer edge of the valve disc sealing surface, an additional thickness of (D0-D)*tan(α / 2) is added on the basis of the thickness at the 3 o'clock position on the outer edge of the valve disc sealing surface. That is, the required thickness at the 12 o'clock position on the outer edge of the valve disc sealing surface is the same as the thickness at the 3 o'clock position on the valve seat sealing surface, with two additional thicknesses added: 2*(D0-D)*tan(α / 2).

[0125] Required thickness at 6 o'clock on the outer edge of the valve disc sealing surface: T 3L =e3+0.2, the required thickness at three points on the outer edge of the valve disc sealing surface: T 2L =e² + 0.2 + (D0 - D) * tan(α / 2), the required thickness at the 9 o'clock position on the outer edge of the valve disc sealing surface: T 4L =e4+0.2+(D0-D)*tan(α / 2), the required thickness at 12 o'clock on the outer edge of the valve disc sealing surface: T 1L =e1+0.2+2*(D0-D)*tan(α / 2). Step 920: Determine the machining allowance of the outer edge of the valve disc sealing surface based on the thickness at the outer edge of the valve disc sealing surface and the required thickness at the outer edge of the valve disc sealing surface.

[0126] Step 922: Grind the valve disc sealing surface according to the machining allowance of the outer edge of the valve disc sealing surface.

[0127] The required thickness at the 12 o'clock position on the outer edge of the valve disc sealing surface is T. 1L The required thickness at three points on the outer edge of the valve disc sealing surface is T. 2L The required thickness at 6 points on the outer edge of the valve disc sealing surface is T. 3L The required thickness at the 9 o'clock position on the outer edge of the valve disc sealing surface is T. 4L The thicknesses at the 12 o'clock, 3 o'clock, 6 o'clock, and 9 o'clock positions on the outer edge of the valve disc sealing surface to be machined are T1, T2, T3, and T4, respectively. The machining allowance at the 12 o'clock position on the outer edge of the valve disc sealing surface is Δ1 = (T1 - T4). 1L) / 2, the machining amount Δ2 at 3 points on the outer edge of the valve disc sealing surface is Δ2 = (T2 - T) / 2. 2L ) / 2, the machining allowance at 6 points on the outer edge of the valve disc sealing surface is Δ3=(T3-T 3L The machining allowance at point 9 on the outer edge of the valve disc sealing surface is Δ4 = (T4 - T) / 2. 4L ) / 2.

[0128] Based on the machining allowance at the outer edge of the valve disc sealing surface, the lathe is controlled to machine the valve disc sealing surface according to the machining allowance. Alternatively, a worker can grind the valve disc sealing surface according to the machining allowance at the outer edge of the valve disc sealing surface, thereby achieving the matching of the valve seat and the valve disc. This application obtains valve disc and valve seat data by 3D scanning of the valve seat and valve disc, and by modeling and matching analysis using software. Based on this, by analyzing the relationship between the outer edge of the valve disc sealing surface and the outer edge of the valve seat sealing surface, the required thickness of the outer edge of the valve disc sealing surface to achieve valve disc-valve seat matching, as well as the machining allowance of the outer edge of the valve disc sealing surface, are determined. Finally, based on the machining allowance data of the outer edge of the valve disc sealing surface, the valve disc sealing surface is ground to achieve precise matching of the valve seat and valve disc, improving the matching efficiency of the valve seat and valve disc.

[0129] It should be understood that although the steps in the flowcharts of the above embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the above embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0130] Based on the same inventive concept, this application also provides a wedge gate valve disc seat matching parameter analysis device for implementing the above-described wedge gate valve disc seat matching parameter analysis method. The solution provided by this device is similar to the solution described in the above method. Therefore, the specific limitations of one or more wedge gate valve disc seat matching parameter analysis device embodiments provided below can be found in the limitations of the wedge gate valve disc seat matching parameter analysis method described above, and will not be repeated here.

[0131] In one embodiment, such as Figure 10As shown, a matching parameter analysis device for a wedge gate valve disc and seat is provided, comprising: a seat scanning module 1002, a disc scanning module 1004, a matching module 1006, a calculation module 1008, and a processing module 1010, wherein:

[0132] The valve seat scanning data acquisition module 1002 is used to acquire the scanning data of the valve seat of the wedge gate valve and construct a three-dimensional model of the valve seat.

[0133] The valve disc scanning data acquisition module 1004 is used to acquire the scanning data of the valve seat of the wedge gate valve and construct a three-dimensional model of the valve seat.

[0134] The matching module 1006 is used to match the three-dimensional model of the valve seat and the three-dimensional model of the valve disc to determine the valve seat data and valve disc data.

[0135] The calculation module 1008 is used to determine the thickness required for valve disc and valve seat matching at the outer edge of the valve disc sealing surface based on the valve seat data and valve disc data.

[0136] The machining module 1010 is used to determine the machining amount of the outer edge of the valve disc sealing surface based on the thickness required for matching the valve disc and valve seat at the outer edge of the valve disc sealing surface. The machining amount of the outer edge of the valve disc sealing surface is used to indicate the machining of the outer edge of the valve disc sealing surface to achieve the assembly and matching of the valve disc and valve seat.

[0137] In one embodiment, the valve seat scanning data acquisition module is used to perform three-dimensional scanning to confirm that both sides of the valve seat are ground flat; and to scan the valve seat sealing surface, guide rail surfaces, and middle flange to construct a three-dimensional model of the valve seat.

[0138] In one embodiment, the valve disc scanning data acquisition module is used to perform three-dimensional scanning to confirm that both sides of the valve disc are ground flat; and to scan the valve disc sealing surface, guide rail surfaces, and middle flange to construct a three-dimensional model of the valve disc.

[0139] In one embodiment, the matching module is used to match the three-dimensional model of the valve seat and the three-dimensional model of the valve disc to construct a three-dimensional wedge gate valve model; and to determine the valve seat data and valve disc data based on the three-dimensional wedge gate valve model.

[0140] In one embodiment, the calculation module is used to add a preset value to the thickness of the outer edge of the valve disc sealing surface based on grinding consumption; determine the vertical distance between the top outer edge of the valve disc sealing surface and the outer edge of the valve seat sealing surface according to the valve seat outer diameter, the valve disc sealing surface outer diameter, and the valve disc included angle; and determine the thickness required to achieve valve disc-valve seat matching at the outer edge of the valve disc sealing surface according to the preset valve disc thickness, the valve seat sealing surface outer edge spacing, and the vertical distance between the top outer edge of the valve disc sealing surface and the outer edge of the valve seat sealing surface.

[0141] In one embodiment, the processing module is used to determine the processing amount of the outer edge of the valve disc sealing surface based on the thickness at the outer edge of the valve disc sealing surface and the required thickness at the outer edge of the valve disc sealing surface; and to grind the valve disc sealing surface based on the processing amount of the outer edge of the valve disc sealing surface.

[0142] Each module in the aforementioned wedge gate valve disc and seat matching parameter analysis device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device, or stored in the computer device's memory as software, so that the processor can call and execute the corresponding operations of each module.

[0143] In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as follows: Figure 11 As shown, the computer device includes a processor, memory, and a network interface connected via a system bus. The processor provides computational and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database stores valve seat and valve disc data. The network interface communicates with external terminals via a network connection. When executed by the processor, the computer program implements a method for analyzing matching parameters of a wedge gate valve disc and valve seat.

[0144] Those skilled in the art will understand that Figure 11 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0145] In one embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps:

[0146] Obtain the scanning data of the valve seat of the wedge gate valve and construct a three-dimensional model of the valve seat;

[0147] Scan the valve disc of the wedge gate valve and construct a three-dimensional model of the valve disc;

[0148] Match the 3D model of the valve seat and the 3D model of the valve disc to determine the valve seat data and valve disc data;

[0149] Based on the valve seat data and valve disc data, determine the thickness required for valve disc and valve seat matching at the outer edge of the valve disc sealing surface;

[0150] The machining allowance of the outer edge of the valve disc sealing surface is determined based on the thickness required for matching the valve disc and valve seat at the outer edge of the valve disc sealing surface. The machining allowance of the outer edge of the valve disc sealing surface is used to indicate the machining of the outer edge of the valve disc sealing surface to achieve the assembly and matching of the valve disc and valve seat.

[0151] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0152] The process involves: 3D scanning to confirm the smoothness of the grinding on both sides of the valve seat; acquiring scanning data of the wedge-shaped valve seat sealing surface, guide rail surfaces, and middle flange to construct a 3D model of the valve seat; or, acquiring scanning data of the valve disc of the wedge-shaped gate valve to construct a 3D model of the valve disc, including: 3D scanning to confirm the smoothness of the grinding on both sides of the valve disc; acquiring scanning data of the valve disc sealing surface, guide rail surfaces, and middle flange to construct a 3D model of the valve disc. In one embodiment, the processor, when executing the computer program, further implements the following steps:

[0153] The 3D model of the valve seat and the 3D model of the valve disc are matched to construct a 3D wedge gate valve model; based on the 3D wedge gate valve model, the valve seat data and valve disc data are determined.

[0154] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0155] Valve seat data includes: valve seat outer diameter, valve seat inner diameter, and distance between the outer edges of the two valve seat sealing surfaces; valve disc data includes: valve disc included angle, valve disc sealing surface outer diameter, valve disc sealing surface inner diameter, and thickness at the outer edge of the valve disc sealing surface.

[0156] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0157] Based on grinding consumption, a preset value is added to the thickness of the outer edge of the valve disc sealing surface; the vertical distance between the top outer edge of the valve disc sealing surface and the outer edge of the valve seat sealing surface is determined according to the valve seat outer diameter, the valve disc sealing surface outer diameter, and the valve disc included angle; the thickness required to achieve valve disc-valve seat matching at the outer edge of the valve disc sealing surface is determined according to the preset valve disc thickness, the distance between the outer edges of the valve seat sealing surface, and the vertical distance between the top outer edge of the valve disc sealing surface and the outer edge of the valve seat sealing surface.

[0158] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0159] The machining allowance of the outer edge of the valve disc sealing surface is determined based on the thickness at the outer edge of the valve disc sealing surface and the required thickness at the outer edge of the valve disc sealing surface; the valve disc sealing surface is then ground based on the machining allowance of the outer edge of the valve disc sealing surface.

[0160] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, the computer program performing the following steps when executed by a processor:

[0161] Obtain the scanning data of the valve seat of the wedge gate valve and construct a three-dimensional model of the valve seat;

[0162] Scan the valve disc of the wedge gate valve and construct a three-dimensional model of the valve disc;

[0163] Match the 3D model of the valve seat and the 3D model of the valve disc to determine the valve seat data and valve disc data;

[0164] Based on the valve seat data and valve disc data, determine the thickness required for valve disc and valve seat matching at the outer edge of the valve disc sealing surface;

[0165] The machining allowance of the outer edge of the valve disc sealing surface is determined based on the thickness required for matching the valve disc and valve seat at the outer edge of the valve disc sealing surface. The machining allowance of the outer edge of the valve disc sealing surface is used to indicate the machining of the outer edge of the valve disc sealing surface to achieve the assembly and matching of the valve disc and valve seat.

[0166] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0167] The process involves: 3D scanning to confirm the smoothness of the grinding on both sides of the valve seat; acquiring scanning data of the wedge-shaped valve seat sealing surface, guide rail surfaces, and middle flange to construct a 3D model of the valve seat; or acquiring scanning data of the valve disc of the wedge-shaped gate valve to construct a 3D model of the valve disc, including: 3D scanning to confirm the smoothness of the grinding on both sides of the valve disc; acquiring scanning data of the valve disc sealing surface, guide rail surfaces, and middle flange to construct a 3D model of the valve disc. In one embodiment, when the computer program is executed by the processor, it further implements the following steps:

[0168] The 3D model of the valve seat and the 3D model of the valve disc are matched to construct a 3D wedge gate valve model; based on the 3D wedge gate valve model, the valve seat data and valve disc data are determined.

[0169] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0170] Valve seat data includes: valve seat outer diameter, valve seat inner diameter, and distance between the outer edges of the two valve seat sealing surfaces; valve disc data includes: valve disc included angle, valve disc sealing surface outer diameter, valve disc sealing surface inner diameter, and thickness at the outer edge of the valve disc sealing surface.

[0171] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0172] Based on grinding consumption, a preset value is added to the thickness of the outer edge of the valve disc sealing surface; the vertical distance between the top outer edge of the valve disc sealing surface and the outer edge of the valve seat sealing surface is determined according to the valve seat outer diameter, the valve disc sealing surface outer diameter, and the valve disc included angle; the thickness required to achieve valve disc-valve seat matching at the outer edge of the valve disc sealing surface is determined according to the preset valve disc thickness, the distance between the outer edges of the valve seat sealing surface, and the vertical distance between the top outer edge of the valve disc sealing surface and the outer edge of the valve seat sealing surface.

[0173] In one embodiment, when the computer program is executed by a processor, it further performs the following steps:

[0174] The machining allowance for the outer edge of the valve disc sealing surface is determined based on the thickness at the outer edge of the valve disc sealing surface and the required thickness at the outer edge of the valve disc sealing surface.

[0175] The valve disc sealing surface is ground according to the machining allowance of the outer edge of the valve disc sealing surface.

[0176] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, performs the following steps:

[0177] Obtain the scanning data of the valve seat of the wedge gate valve and construct a three-dimensional model of the valve seat;

[0178] Scan the valve disc of the wedge gate valve and construct a three-dimensional model of the valve disc;

[0179] Match the 3D model of the valve seat and the 3D model of the valve disc to determine the valve seat data and valve disc data;

[0180] Based on the valve seat data and valve disc data, determine the thickness required for valve disc and valve seat matching at the outer edge of the valve disc sealing surface;

[0181] The machining allowance of the outer edge of the valve disc sealing surface is determined based on the thickness required for matching the valve disc and valve seat at the outer edge of the valve disc sealing surface. The machining allowance of the outer edge of the valve disc sealing surface is used to indicate the machining of the outer edge of the valve disc sealing surface to achieve the assembly and matching of the valve disc and valve seat.

[0182] In one embodiment, when the computer program is executed by a processor, it further performs the following steps:

[0183] The process involves: 3D scanning to confirm the smoothness of the grinding on both sides of the valve seat; acquiring scanning data of the wedge-shaped valve seat sealing surface, guide rail surfaces, and middle flange to construct a 3D model of the valve seat; or acquiring scanning data of the valve disc of the wedge-shaped gate valve to construct a 3D model of the valve disc, including: 3D scanning to confirm the smoothness of the grinding on both sides of the valve disc; acquiring scanning data of the valve disc sealing surface, guide rail surfaces, and middle flange to construct a 3D model of the valve disc. In one embodiment, when the computer program is executed by the processor, it further implements the following steps:

[0184] The 3D model of the valve seat and the 3D model of the valve disc are matched to construct a 3D wedge gate valve model; based on the 3D wedge gate valve model, the valve seat data and valve disc data are determined.

[0185] In one embodiment, when the computer program is executed by a processor, it further performs the following steps:

[0186] Valve seat data includes: valve seat outer diameter, valve seat inner diameter, and distance between the outer edges of the two valve seat sealing surfaces; valve disc data includes: valve disc included angle, valve disc sealing surface outer diameter, valve disc sealing surface inner diameter, and thickness at the outer edge of the valve disc sealing surface.

[0187] In one embodiment, when the computer program is executed by a processor, it further performs the following steps:

[0188] Based on grinding consumption, a preset value is added to the thickness of the outer edge of the valve disc sealing surface; the vertical distance between the top outer edge of the valve disc sealing surface and the outer edge of the valve seat sealing surface is determined according to the valve seat outer diameter, the valve disc sealing surface outer diameter, and the valve disc included angle; the thickness required to achieve valve disc-valve seat matching at the outer edge of the valve disc sealing surface is determined according to the preset valve disc thickness, the distance between the outer edges of the valve seat sealing surface, and the vertical distance between the top outer edge of the valve disc sealing surface and the outer edge of the valve seat sealing surface.

[0189] In one embodiment, when the computer program is executed by a processor, it further performs the following steps:

[0190] The machining allowance of the outer edge of the valve disc sealing surface is determined based on the thickness at the outer edge of the valve disc sealing surface and the required thickness at the outer edge of the valve disc sealing surface; the valve disc sealing surface is then ground based on the machining allowance of the outer edge of the valve disc sealing surface.

[0191] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0192] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0193] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A method for analyzing matching parameters of valve disc and valve seat, characterized in that, The method includes: Obtain the scanning data of the valve seat of the wedge gate valve and construct a three-dimensional model of the valve seat; Obtain the scanning data of the valve disc of the wedge gate valve and construct a three-dimensional model of the valve disc; The 3D model of the valve seat and the 3D model of the valve disc are matched to determine the valve seat data and valve disc data. The valve seat data includes: the outer diameter of the valve seat, the inner diameter of the valve seat, and the distance between the outer edges of the sealing surfaces of the two valve seats. The valve disc data includes: the valve disc included angle, the outer diameter of the valve disc sealing surface, the inner diameter of the valve disc sealing surface, and the thickness at the outer edge of the valve disc sealing surface. Based on the valve seat data and the valve disc data, determine the thickness required for valve disc and valve seat matching at the outer edge of the valve disc sealing surface; specifically including: Based on the wear and tear, a preset value is added to the thickness of the outer edge of the valve disc sealing surface; The vertical distance between the outer edge of the top of the valve disc sealing surface and the outer edge of the valve seat sealing surface is determined based on the outer diameter of the valve seat, the outer diameter of the valve disc sealing surface, and the included angle of the valve disc. Based on the preset valve disc thickness, the distance between the outer edges of the valve seat sealing surface, and the vertical distance between the top outer edge of the valve disc sealing surface and the outer edge of the valve seat sealing surface, the thickness required for valve disc and valve seat matching at the outer edge of the valve disc sealing surface is determined; wherein, during valve disc and valve seat matching, the required thicknesses at the four points (12 o'clock, 3 o'clock, 6 o'clock, and 9 o'clock) of the outer edge of the valve disc sealing surface are denoted as T respectively. 1L、 T 2L、 T 3L、 T 4L The required thickness at 6 points on the outer edge of the valve disc sealing surface: T 3L = e3 + 0.2, the required thickness at three points on the outer edge of the valve disc sealing surface: T 2L = e² + 0.2 + (D0 - D) * tan(α / 2), where T is the required thickness at 9 o'clock on the outer edge of the valve disc sealing surface. 4L = e4 + 0.2 + (D0 - D) * tan(α / 2), where T is the required thickness at 12 o'clock on the outer edge of the valve disc sealing surface. 1L = e1 + 0.2 + 2*(D0 - D)*tan(α / 2); The outer diameter of the valve seat is D, the outer diameter of the valve disc sealing surface is D0, the distance between the outer edges of the two valve seat sealing surfaces is e1, e2, e3, and e4 at the four points of 12 o'clock, 3 o'clock, 6 o'clock, and 9 o'clock respectively, and the valve disc included angle is the included angle formed by the two valve seat sealing surfaces, which is α; The machining allowance of the outer edge of the valve disc sealing surface is determined based on the thickness required for matching the valve disc and valve seat at the outer edge of the valve disc sealing surface. The machining allowance of the outer edge of the valve disc sealing surface is used to indicate the machining of the outer edge of the valve disc sealing surface to achieve the assembly and matching of the valve disc and valve seat.

2. The method according to claim 1, characterized in that, The process of acquiring scanning data of the wedge gate valve seat and constructing a three-dimensional model of the valve seat includes: 3D scanning confirmed that both sides of the valve seat were ground flat. Obtain scanning data of the wedge-shaped valve seat sealing surface, each surface of the guide rail, and the middle flange, and construct a three-dimensional model of the valve seat; Alternatively, acquiring the scanning data of the wedge gate valve disc and constructing a three-dimensional model of the valve disc includes: 3D scanning confirmed that both sides of the valve disc were ground flat. Obtain scanning data of the valve disc sealing surface, guide rail surfaces, and middle flange to construct a three-dimensional model of the valve disc.

3. The method according to claim 1, characterized in that, The process of matching the 3D model of the valve seat and the 3D model of the valve disc to determine the valve seat data and valve disc data includes: The valve seat 3D model and valve disc 3D model are matched to construct a 3D wedge gate valve solid model; Based on the three-dimensional model of the wedge gate valve, the valve seat data and valve disc data are determined.

4. The method according to claim 1, characterized in that, The step of determining the machining allowance of the outer edge of the valve disc sealing surface based on the thickness required for matching the valve disc and valve seat at the outer edge of the valve disc sealing surface; the machining allowance of the outer edge of the valve disc sealing surface is used to indicate the machining of the outer edge of the valve disc sealing surface to achieve the assembly and matching of the valve disc and valve seat, including: The machining allowance for the outer edge of the valve disc sealing surface is determined based on the thickness at the outer edge of the valve disc sealing surface and the required thickness at the outer edge of the valve disc sealing surface. The valve disc sealing surface is ground according to the machining allowance of the outer edge of the valve disc sealing surface.

5. A device for analyzing matching parameters of valve disc and valve seat, characterized in that, The device includes: The valve seat scanning data acquisition module is used to acquire the scanning data of the valve seat of the wedge gate valve and construct a three-dimensional model of the valve seat. The valve disc scanning data acquisition module is used to acquire the scanning data of the valve seat of the wedge gate valve and construct a three-dimensional model of the valve seat. The matching module is used to match the 3D model of the valve seat and the 3D model of the valve disc to determine the valve seat data and valve disc data. The valve seat data includes: the outer diameter of the valve seat, the inner diameter of the valve seat, and the distance between the outer edges of the sealing surfaces of the two valve seats. The valve disc data includes: the valve disc included angle, the outer diameter of the valve disc sealing surface, the inner diameter of the valve disc sealing surface, and the thickness at the outer edge of the valve disc sealing surface. The calculation module is used to add a preset value to the thickness of the outer edge of the valve disc sealing surface based on grinding consumption; determine the vertical distance between the top outer edge of the valve disc sealing surface and the outer edge of the valve seat sealing surface according to the outer diameter of the valve seat, the outer diameter of the valve disc sealing surface, and the valve disc included angle; determine the thickness required for valve disc and valve seat matching at the outer edge of the valve disc sealing surface according to the preset valve disc thickness, the distance between the outer edges of the valve seat sealing surface, and the vertical distance between the top outer edge of the valve disc sealing surface and the outer edge of the valve seat sealing surface; wherein, when the valve disc and valve seat are matched, the required thickness at the four points of 12 o'clock, 3 o'clock, 6 o'clock, and 9 o'clock of the outer edge of the valve disc sealing surface is denoted as T respectively. 1L、 T 2L、 T 3L、 T 4L The required thickness at 6 points on the outer edge of the valve disc sealing surface: T 3L = e3 + 0.2, the required thickness at three points on the outer edge of the valve disc sealing surface: T 2L = e² + 0.2 + (D0 - D) * tan(α / 2), where T is the required thickness at 9 o'clock on the outer edge of the valve disc sealing surface. 4L = e4 + 0.2 + (D0 - D) * tan(α / 2), where T is the required thickness at 12 o'clock on the outer edge of the valve disc sealing surface. 1L = e1 + 0.2 + 2*(D0 - D)*tan(α / 2); The outer diameter of the valve seat is D, the outer diameter of the valve disc sealing surface is D0, the distance between the outer edges of the two valve seat sealing surfaces is e1, e2, e3, and e4 at the four points of 12 o'clock, 3 o'clock, 6 o'clock, and 9 o'clock respectively, and the valve disc included angle is the included angle formed by the two valve seat sealing surfaces, which is α; The machining module is used to determine the machining amount of the outer edge of the valve disc sealing surface based on the thickness required for matching the valve disc and valve seat at the outer edge of the valve disc sealing surface; the machining amount of the outer edge of the valve disc sealing surface is used to indicate the machining of the outer edge of the valve disc sealing surface to achieve the assembly and matching of the valve disc and valve seat.

6. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 4.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 4.

8. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 4.

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