Advanced orifice plate valve interlock protection mechanism

Abstract

The utility model relates to valve maintenance and repair technical field, concretely relates to a senior orifice plate valve interlock protection mechanism, including support, connecting rod mechanism and blocking part, support and senior orifice plate valve's valve body can be dismantled connection, connecting rod mechanism and support sliding connection, connecting rod mechanism and senior orifice plate valve's balance valve valve rod on the action part abut, and the blocking part sets up in the connecting rod mechanism end, and the blocking part can abut with senior orifice plate valve's sliding plate valve valve rod, when blocking part and sliding plate valve valve rod abut, sliding plate valve valve rod on cannot suit the operating tool, when the action part of balance valve valve rod removes, can push the connecting rod mechanism and remove, and then drive the blocking part and make sliding plate valve valve rod away from, make sliding plate valve valve rod can suit the operating tool, realized only first action balance valve can action sliding plate valve's operation order limit, this interlock protection mechanism simple structure can be more easily on senior orifice plate valve of existing supplementary installation, the transformation cost is lower, and does not affect normal production.

Description

Technical Field

[0001] This utility model relates to the field of valve maintenance and repair technology, and in particular to an advanced orifice plate valve interlocking protection mechanism. Background Technology

[0002] Advanced orifice valves are commonly used flow metering devices in natural gas, petroleum, and chemical industries. They typically include a balancing valve for controlling the flow between the upper and lower valve chambers, and a sliding valve for controlling the flow between the lower valve chamber and the main pipeline. During use, the orifice plate needs to be periodically removed for cleaning and maintenance. Before removing the orifice plate, the balancing valve must be opened to balance the pressure in the upper and lower valve chambers and eliminate pressure differential resistance during orifice plate lifting. Then, the sliding valve is opened, and the orifice plate lifting shaft is cranked to lift the orifice plate to its maximum position in the upper valve chamber. The sliding valve is then closed, followed by the balancing valve, and pressure is released. Only then can the top cover of the advanced orifice valve be opened to remove the orifice plate for cleaning, inspection, or replacement. After maintenance, the operation must be performed according to the prescribed sequence. However, due to the proximity of the operating positions, operational hazards exist when operators are unfamiliar with the process or are under stress. In particular, if the sliding valve is opened before the balancing valve, connecting the main pipeline to the lower valve chamber, the sliding valve can be damaged, leading to air leakage between the upper and lower valve chambers. Furthermore, when the top cover is opened, the orifice plate can easily fly out, causing a safety accident.

[0003] Chinese utility model patent CN220227878U discloses an anti-explosion device for advanced orifice plate valves. In order to overcome the risk caused by errors in the operation sequence, the structure of the advanced orifice plate valve has been improved. However, for the existing advanced orifice plate valves in use, the overall replacement of the valve is costly and affects normal production. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing advanced orifice plate valves, such as the risk of significant losses due to incorrect operation sequence, high overall valve modification costs, and impact on production, and to provide an interlocking protection mechanism for advanced orifice plate valves.

[0005] This utility model provides an advanced orifice plate valve interlocking protection mechanism, including...

[0006] A bracket, which is detachably connected to the valve body of an advanced orifice plate valve;

[0007] A linkage mechanism is slidably connected to the bracket, and the linkage mechanism abuts against the actuating component on the balance valve stem of the advanced orifice plate valve;

[0008] The blocking part is disposed at the end of the linkage mechanism. The blocking part can abut against the slide valve stem of the advanced orifice valve. The movement of the actuating component can push the linkage mechanism to move, so that the blocking part moves closer to or away from the slide valve stem of the advanced orifice valve.

[0009] This utility model discloses an advanced orifice valve interlocking protection mechanism, which is connected to the valve stems of the balance valve and the slide valve via a linkage mechanism. When the blocking part abuts against the slide valve stem, the operating tool cannot be mounted on the slide valve stem. When the moving part of the balance valve stem moves, it can push the linkage mechanism to move, thereby moving the blocking part away from the slide valve stem, allowing the operating tool to be mounted on the slide valve stem for operation. This achieves the limitation that the operation sequence of the balance valve can only be activated before the slide valve can be activated. This interlocking protection mechanism has a simple structure, can be easily installed on existing advanced orifice valves, has low modification costs, and does not affect normal production.

[0010] Preferably, the linkage mechanism includes a main rod with a mounting hole, and the balance valve stem of the advanced orifice plate valve is slidably fitted into the mounting hole. The linkage mechanism is fitted onto the balance valve stem of the advanced orifice plate valve through the mounting hole, ensuring stable installation.

[0011] Preferably, the main rod is connected to a first steering rod, the first steering rod is connected to a second steering rod, the main rod and the first steering rod are perpendicular to each other, the first steering rod and the second steering rod are perpendicular to each other, the second steering rod and the main rod are perpendicular to each other, and the blocking part is provided at the end of the second steering rod. The structure of the linkage mechanism is matched with the relative positional relationship of the balance valve and the slide valve to realize the connection of the balance valve and the slide valve on the high-grade orifice plate valve through the linkage mechanism.

[0012] Preferably, the blocking part includes an abutment surface disposed at the end of the second steering rod. The abutment surface abuts against the slide valve stem, restricting the mounting of the operating tool on the slide valve stem.

[0013] Preferably, the blocking part includes a limiting plate with a slot that engages with the sliding valve stem of the advanced orifice valve. This stabilizes the blocking part and the sliding valve stem, effectively preventing the installation of operating tools on the sliding valve stem before the blocking part is removed.

[0014] Preferably, the main rod and the first steering rod are connected by a first sliding sleeve, which is disposed at the end of the main rod. The first steering rod and the second steering rod are connected by a second sliding sleeve, which is disposed at the end of the second steering rod. Both the first and second sliding sleeves are equipped with limiting elements. This allows the structure of the interlocking protection mechanism to be adjusted according to the specific structure of the advanced orifice valve, realizing the association between the balance valve and the slide valve through the linkage mechanism.

[0015] Preferably, the main rod, the first steering rod, and the second steering rod are all rectangular rod-shaped structural members. This prevents the linkage mechanism from rotating during use, ensuring the structural stability of the interlocking protection mechanism during operation.

[0016] Preferably, the bracket has a channel hole through which the main rod passes, thus stabilizing the relative position of the linkage mechanism and the bracket.

[0017] Preferably, the main rod is provided with a slide rail, the extension direction of which is parallel to the balance valve stem of the advanced orifice plate valve, and the bracket is provided with a connector that slides with the slide rail. This ensures that the linkage mechanism and the bracket can only move in a limited direction.

[0018] Preferably, the bracket includes two mounting brackets, which are respectively disposed on both sides of the balance valve stem of the advanced orifice plate valve. Each mounting bracket is provided with a connecting hole and a channel hole. This further defines the relative movement direction between the linkage mechanism and the bracket, enabling the interlocking protection mechanism to achieve the intended effect.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. This utility model provides an advanced orifice plate valve interlocking protection mechanism, which is connected to the balance valve stem and the slide valve stem respectively through a linkage mechanism. When the blocking part abuts against the slide valve stem, the operating tool cannot be put on the slide valve stem. When the moving part of the balance valve stem moves, it can push the linkage mechanism to move, thereby driving the blocking part away from the slide valve stem, so that the slide valve stem can be put on the operating tool for operation, thus realizing the limitation of the operation sequence that the balance valve can only be operated first before the slide valve can be operated.

[0021] 2. The interlocking protection mechanism has a simple structure and can be easily installed on existing high-grade orifice plate valves. The modification cost is low and it does not affect normal production. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an orifice valve interlocking protection mechanism according to Embodiment 1.

[0023] Figure 2 This is a schematic diagram of the main rod described in Example 1.

[0024] Figure 3 This is a schematic diagram of the structure of the second steering rod in Embodiment 1. Figure 1 .

[0025] Figure 4 This is a schematic diagram of the structure of the second steering rod in Embodiment 1. Figure 2 .

[0026] Figure 5 This is a side view of the orifice valve interlocking protection mechanism in use according to Embodiment 1.

[0027] Figure 6 This is a top view of the orifice valve interlocking protection mechanism in use according to Embodiment 1.

[0028] Marked in the image:

[0029] 1-Bracket, 11-Mounting bracket, 12-Channel hole, 13-Connecting hole, 14-Connector, 2-Linkage mechanism, 21-Main rod, 211-Mounting hole, 212-Slide rail, 22-First steering rod, 23-Second steering rod, 3-Blocking part, 31-Abutting surface, 32-Limiting plate, 321-Slot, 4-Valve body, 5-Balance valve stem, 51-Actuating component, 6-Slide valve stem, 7-First sliding sleeve, 8-Second sliding sleeve, 9-Limiting component. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0031] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0033] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0034] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0035] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0036] Example 1

[0037] like Figures 1-6 As shown, an advanced orifice valve interlocking protection mechanism includes a linkage mechanism 2, a blocking part 3, and a bracket 1. The linkage mechanism 2 is slidably connected to the bracket 1, and the bracket 1 is detachably connected to the valve body 4 of the advanced orifice valve. The blocking part 3 is disposed at the end of the linkage mechanism 2. The linkage mechanism 2 abuts against the actuating component 51 on the balance valve stem 5 of the advanced orifice valve. The blocking part 3 can abut against the slide valve stem 6 of the advanced orifice valve. The movement of the actuating component 51 can push the linkage mechanism 2 to move, so that the blocking part 3 approaches or moves away from the slide valve stem 6 of the advanced orifice valve.

[0038] likeFigures 5-6 As shown, the advanced orifice valve in this embodiment is equipped with a balance valve and a slide valve. The balance valve stem 5 and the slide valve stem 6 are set at 90° on the advanced orifice valve and have a height difference. The balance valve stem 5 is equipped with an actuating component 51 including a handwheel and a connecting nut. The handwheel is used to drive the balance valve stem 5 to rotate. When the balance valve stem 5 rotates, the actuating component 51 including the handwheel and the connecting nut can move along the balance valve stem 5, relatively closer to or farther away from the advanced orifice valve body 4.

[0039] The linkage mechanism 2 is the main structure used to connect the balance valve stem 5 and the slide valve stem 6 on the advanced orifice valve.

[0040] In one or more embodiments, the linkage mechanism 2 may include a main rod 21, on which a mounting hole 211 is provided. The balance valve stem 5 of the advanced orifice plate valve is slidably engaged with the mounting hole 211. Through the setting of the mounting hole 211, the linkage mechanism 2 can be fitted onto the balance valve stem 5 of the advanced orifice plate valve through the mounting hole 211. It can be stably set between the handwheel and the connecting nut on the balance valve stem 5, and the installation is stable. When the balance valve stem 5 rotates, it can be synchronously driven to move along the balance valve stem 5.

[0041] In an optional embodiment, the mounting hole 211 can be a slotted hole that penetrates the side wall of the main rod 21. The mounting hole 211 can be snapped onto the handwheel and connecting nut on the balance valve stem 5 from top to bottom.

[0042] In optional implementations, such as Figure 1 As shown, the mounting hole 211 can also be a strip-shaped hole that penetrates the main rod 21. The mounting hole 211 of the strip-shaped hole allows the main rod 21 to be installed after the handwheel is removed.

[0043] In an optional embodiment, the main rod 21 can be a rod structure such as a round rod or a rectangular rod. The thickness of the main rod 21 can be reduced locally according to the actual situation, so that the main rod 21 can not only ensure sufficient structural strength, but also be quickly installed on the balance valve stem 5 of the advanced orifice plate valve, and can be smoothly installed between the handwheel and the connecting nut on the balance valve stem 5.

[0044] In one or more implementations, such as Figure 1As shown, the main rod 21 can be connected to the first steering rod 22, and the first steering rod 22 is connected to the second steering rod 23. The main rod 21 and the first steering rod 22 are perpendicular to each other, the first steering rod 22 and the second steering rod 23 are perpendicular to each other, and the second steering rod 23 is perpendicular to the main rod 21. The blocking part 3 is provided at the end of the second steering rod 23. Since the balance valve stem 5 and the slide valve stem 6 of the advanced orifice valve are spatially perpendicular and have a height difference, in order to match the relative position relationship between the linkage mechanism 2 and the balance valve and the slide valve, the multi-segment combination linkage mechanism 2 can be used to connect the balance valve and the slide valve on the advanced orifice valve.

[0045] In one or more embodiments, the main rod 21 and the first steering rod 22 can be connected by a first sliding sleeve 7, which is disposed at the end of the main rod 21. The first steering rod 22 and the second steering rod 23 can be connected by a second sliding sleeve 8, which is disposed at the end of the second steering rod 23. The first sliding sleeve 7 and the second sliding sleeve 8 are respectively equipped with limiting members 9. This allows the structure of the interlocking protection mechanism to be adjusted according to the specific structure of the advanced orifice valve, realizing the association between the balance valve and the slide valve through the linkage mechanism 2.

[0046] In an optional embodiment, the limiting member 9 can be a conventional limiting member 9 such as a screw, bolt or pin, used to limit the positional stability of the first sliding sleeve 7 and the second sliding sleeve 8.

[0047] In an optional embodiment, the main rod 21, the first steering rod 22, and the second steering rod 23 are all rectangular rod-shaped structural members, and the corresponding sliding sleeves can be rectangular tube components. This ensures that the linkage mechanism 2 will not rotate during use, thus guaranteeing the structural stability of the interlocking protection mechanism during operation.

[0048] The blocking part 3 is a main structure installed on the linkage mechanism 2 to abut against the valve stem 6 of the slide valve, preventing the operating tool from being mounted on the valve stem 6 of the slide valve.

[0049] In one or more implementations, such as Figure 3 As shown, the blocking part 3 may include an abutment surface 31 disposed at the end of the second steering rod 23. The abutment surface 31 abuts against the slide valve stem 6, restricting the operation tool mounted on the slide valve stem 6.

[0050] In an optional embodiment, the abutment surface 31 can abut against the end of the slide valve stem 6 at the position for mounting the operating tool, so that the operating tool cannot be mounted on the slide valve stem 6. Only after the balance valve stem 5 is moved and the abutment surface 31 is disengaged from the slide valve stem 6 can the operating tool be mounted, thereby enabling the operation of the slide valve stem 6.

[0051] Specifically, the operating tools can be torque tools such as socket wrenches and regular wrenches.

[0052] In one or more implementations, such as Figure 4 As shown, the blocking part 3 may also include a limiting plate 32, which has a slot 321 that can engage with the slide valve stem 6 of the advanced orifice valve. This ensures that the blocking part 3 and the slide valve stem 6 are stably positioned, effectively preventing the installation of operating tools on the slide valve stem 6 before the blocking part 3 is removed.

[0053] In an optional embodiment, the limiting plate 32 may be a plate-shaped structural component welded to the end of the second steering rod 23, with a slot 321, which can be locked onto the slide valve stem 6 of the advanced orifice plate valve, so that the slide valve cannot be operated when the limiting plate 32 is locked.

[0054] The bracket 1 is the main structure used to connect the valve body 4 of the advanced orifice plate valve with the linkage mechanism 2, and is used to achieve the stable setting of the linkage mechanism 2.

[0055] In one or more implementations, such as Figure 1 As shown, the bracket 1 has a channel hole 12, through which the main rod 21 passes. This stabilizes the relative position of the linkage mechanism 2 and the bracket 1.

[0056] In an optional embodiment, the channel hole 12 may be a strip hole.

[0057] In optional implementations, such as Figure 1 As shown, the bracket 1 may include two mounting brackets 11, which are respectively disposed on both sides of the balance valve stem 5 of the advanced orifice plate valve. Each mounting bracket 11 is provided with a connecting hole 13 and a channel hole 12. The connecting hole 13 is used to connect with the linkage mechanism 2 through a connecting piece 14, and the channel hole 12 is used for the linkage mechanism 2 to pass through, further limiting the relative movement direction between the linkage mechanism 2 and the bracket 1, so that the interlocking protection mechanism can achieve the expected use effect.

[0058] In one or more implementations, such as Figure 2 As shown, the main rod 21 may be provided with a slide rail 212, the extension direction of which is parallel to the balance valve stem 5 of the advanced orifice plate valve. The bracket 1 is provided with a connector 14, which slides in conjunction with the slide rail 212. This allows the linkage mechanism 2 and the bracket 1 to move only in a limited direction.

[0059] In an optional embodiment, the slide 212 can be a strip-shaped groove provided on the main rod 21, and the connector 14 can be a bolt passing through the mounting bracket 11. By extending the connector 14 through the mounting bracket 11 and into the strip-shaped groove, the movement of the main rod 21 and the bracket 1 in the length direction of the main rod 21 can be restricted, so that the main rod 21 can only move along the length direction of the balance valve stem 5 relative to the balance valve stem 5.

[0060] This embodiment of an advanced orifice valve interlocking protection mechanism is connected to the balance valve stem 5 and the slide valve stem 6 via a linkage mechanism 2. When the blocking part 3 abuts against the slide valve stem 6, no operating tool can be fitted onto the slide valve stem 6. When the actuating part 51 of the balance valve stem 5 moves, it can push the linkage mechanism 2 to move, thereby moving the blocking part 3 away from the slide valve stem 6, allowing the slide valve stem 6 to be fitted with an operating tool for operation. This achieves the limitation that the operation sequence of the balance valve can only be activated before the slide valve can be activated. This interlocking protection mechanism has a simple structure, can be easily installed on existing advanced orifice valves, has low modification costs, and does not affect normal production.

[0061] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An advanced orifice plate valve interlocking protection mechanism, characterized in that, include The bracket (1) is detachably connected to the valve body (4) of the advanced orifice plate valve; Linkage mechanism (2), which is slidably connected to the bracket (1), and the linkage mechanism (2) abuts against the actuating part (51) on the balance valve stem (5) of the advanced orifice plate valve; The blocking part (3) is disposed at the end of the linkage mechanism (2). The blocking part (3) can abut against the slide valve stem (6) of the advanced orifice valve. The movement of the actuating component (51) can push the linkage mechanism (2) to move, so that the blocking part (3) moves closer to or further away from the slide valve stem (6) of the advanced orifice valve.

2. The advanced orifice plate valve interlocking protection mechanism according to claim 1, characterized in that, The linkage mechanism (2) includes a main rod (21), on which a mounting hole (211) is provided, and the balance valve stem (5) of the advanced orifice plate valve slides in cooperation with the mounting hole (211).

3. The advanced orifice plate valve interlocking protection mechanism according to claim 2, characterized in that, The main rod (21) is connected to a first steering rod (22), the first steering rod (22) is connected to a second steering rod (23), the main rod (21) and the first steering rod (22) are perpendicular to each other, the first steering rod (22) and the second steering rod (23) are perpendicular to each other, the second steering rod (23) and the main rod (21) are perpendicular to each other, and the end of the second steering rod (23) is provided with the blocking part (3).

4. The advanced orifice valve interlocking protection mechanism according to claim 3, characterized in that, The blocking part (3) includes an abutment surface (31) disposed at the end of the second steering rod (23).

5. The advanced orifice valve interlocking protection mechanism according to claim 3, characterized in that, The blocking part (3) includes a limiting plate (32), and the limiting plate (32) is provided with a slot (321), which can be engaged with the sliding valve stem (6) of the advanced orifice valve.

6. The advanced orifice plate valve interlocking protection mechanism according to claim 3, characterized in that, The main rod (21) is connected to the first steering rod (22) via a first sliding sleeve (7), which is located at the end of the main rod (21). The first steering rod (22) is connected to the second steering rod (23) via a second sliding sleeve (8), which is located at the end of the second steering rod (23). The first sliding sleeve (7) and the second sliding sleeve (8) are respectively equipped with limiting members (9).

7. An advanced orifice valve interlocking protection mechanism according to any one of claims 3-6, characterized in that, The main rod (21), the first steering rod (22), and the second steering rod (23) are all rectangular rod-shaped structural members.

8. The advanced orifice plate valve interlocking protection mechanism according to claim 6, characterized in that, The bracket (1) is provided with a channel hole (12), and the main rod (21) passes through the channel hole (12).

9. The advanced orifice plate valve interlocking protection mechanism according to claim 8, characterized in that, The main rod (21) is provided with a slide rail (212), the extension direction of the slide rail (212) is parallel to the balance valve stem (5) of the advanced orifice plate valve, and the bracket (1) is provided with a connector (14), the connector (14) and the slide rail (212) are slidably engaged.

10. The advanced orifice plate valve interlocking protection mechanism according to claim 9, characterized in that, The bracket (1) includes two mounting brackets (11), which are respectively located on both sides of the balance valve stem (5) of the advanced orifice plate valve. Each mounting bracket (11) is provided with a connection hole (13) and a channel hole (12).

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