An orifice valve for a natural gas transmission and distribution station

Abstract

The utility model relates to the field of natural gas transmission and distribution, especially in a hole plate valve for natural gas transmission and distribution station, including valve body, first displacement component and second displacement component, be equipped with slide valve and balance valve on the valve body, the slide valve with balance valve is located on two sides of the valve body perpendicular to each other respectively, first displacement component with balance valve connection, second displacement component with slide valve connection, first displacement component can limit second displacement component, through the first displacement component and second displacement component connection realize the limiting of second displacement component, make the balance valve close, the slide valve cannot open, thereby avoid natural gas leakage, avoid the personnel misoperation, guarantee the personnel safety.

Description

Technical Field

[0001] This utility model relates to the field of natural gas transmission and distribution, and in particular to an orifice plate valve for natural gas transmission and distribution stations. Background Technology

[0002] The orifice valve is a throttling differential pressure flow meter, which is currently the most widely used flow measurement instrument in the world. It can measure all single-phase fluids, including liquids, gases, and steam. The orifice valve has a slide valve and a balancing valve. In the actual use of the orifice valve, the balancing valve and the slide valve must be opened and closed in sequence.

[0003] However, in the natural gas extraction and transportation environment, there is a high pressure in the natural gas pipeline. When the orifice valve opens the slide valve while the balance valve is open, natural gas will rush out from the orifice valve at a high speed, which poses a safety risk of natural gas leakage. If the operator misoperates, the high pressure gas can easily cause personal injury. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies, such as the risk of natural gas leakage and personal injury to operators due to misoperation of orifice valves in natural gas extraction and transportation environments, and to provide an orifice valve for natural gas transmission and distribution stations.

[0005] This utility model provides an orifice plate valve for a natural gas transmission and distribution station, including a valve body, on which a slide valve and a balancing valve are provided, the slide valve and the balancing valve being located on two mutually perpendicular sides of the valve body, and further comprising: A first displacement component is connected to the balance valve; A second displacement component is connected to the slide valve; The first displacement component can limit the second displacement component.

[0006] This invention relates to an orifice valve for a natural gas transmission and distribution station. A first displacement component moves with the rotation of a balancing valve, and a second displacement component moves with the rotation of a spool valve. When the balancing valve is closed, the first displacement component moves to a designated position, placing itself on the displacement path of the second displacement component. As the second displacement component moves with the spool valve, the first displacement component abuts against it, hindering its movement and preventing the spool valve from rotating. When the balancing valve is open, the first displacement component moves with the rotation of the balancing valve, leaving the displacement path of the second displacement component. This allows the second displacement component to move with the rotation of the spool valve, enabling it to rotate freely. The first displacement component limits the second displacement component, ensuring that the balancing valve and the spool valve operate only according to a specified opening and closing sequence, thus preventing natural gas leakage and avoiding personal injury to workers from high-pressure gas.

[0007] Preferably, the first displacement component includes a first rod, a second rod, and a limiting component. The first rod is connected to the balance valve, and the second rod is hinged to the first rod. The balance valve and the second rod are spaced apart on the first rod. The second rod is hinged to the limiting component, and the second rod can push the limiting component to move in the horizontal direction. The limiting component is used to limit the second displacement component.

[0008] The first rod, the second rod, and the limiting component together constitute a crank-connecting rod structure. The limiting component slides horizontally through the crank-connecting rod structure. When the limiting component moves into the movement path of the second displacement component, it limits the second displacement component. The second displacement component abuts against the limiting component, thereby hindering the rotation of the slide valve. When the limiting component moves away from the movement path of the second displacement component, the second displacement component can rotate freely.

[0009] Preferably, the limiting component includes a limiting block and a support plate, the limiting block is slidably connected to the support plate, the support plate is horizontally arranged, the support plate is connected to the valve body, the second rod is hinged to the limiting block, and the limiting block is used to limit the second displacement component.

[0010] The support plate is connected and fixed to the valve body, so that the support plate is set horizontally and the limit block is horizontally displaced at the top of the support plate, which facilitates the control of the position of the limit block and the opening or closing of the balance valve.

[0011] Preferably, the support plate is provided with a sliding groove, and the limiting block is provided with a sliding member, and the sliding groove and the sliding member are connected in cooperation.

[0012] The chute limits the movement of the limiting block, enabling it to better impede the movement of the second displacement component; the chute also guides the limiting block, allowing it to quickly reach a designated position to limit the movement of the second displacement component, or to quickly leave the designated position, allowing the second displacement component to rotate freely.

[0013] Preferably, the limiting block has a limiting groove, and the second displacement component can be engaged and connected within the limiting groove.

[0014] When the slide valve opens, the second displacement component enters the limiting groove, restricting the movement of the limiting block, thus making it difficult for the balance valve connected to the first rod to rotate; only after the slide valve closes can the balance valve be closed.

[0015] Preferably, the second rod body is provided with a limiting member, the limiting member is threadedly connected to the second rod body, the limiting member is rotatably connected to the first rod body, and the limiting member is provided with an abutting part, the abutting part being able to abut against the first rod body.

[0016] By limiting the relative positions of the first rod and the second rod, it is difficult for the first rod and the second rod to move relative to each other. When it is necessary to keep the orifice valve open or closed, the limiting part and the first rod can clamp the second rod through the limiting part, making it difficult for the relative positions of the first rod and the second rod to change, making it difficult for the orifice valve to change its working state, thereby avoiding misoperation of the orifice valve by the operator.

[0017] Preferably, the second displacement component includes a third rod, which is connected to the slide valve, and the first displacement component holds the third rod.

[0018] The third rod can rotate with the slide valve. After the third rod is connected to the first displacement component, it is limited, making it difficult for the slide valve to rotate.

[0019] Preferably, the end of the third rod is provided with a block, which is hinged to the third rod and is used to connect with the first displacement component.

[0020] The limiting block abuts against the first displacement component, making it difficult for the slide valve to rotate. The limiting block can also be locked to the first displacement component, limiting the first displacement component and thus preventing the first displacement component from shifting, thereby preventing the balance valve from rotating.

[0021] Preferably, the balance valve includes a first handle and a first rotating rod, the first handle being connected to the first rotating rod, and the first displacement assembly being connected to the first rotating rod; the slide valve includes a second handle and a second rotating rod, the second handle being connected to the second rotating rod, and the second displacement assembly being connected to the second rotating rod.

[0022] Rotating the first grip will cause the first rotating rod to rotate, which in turn causes the first displacement component to rotate, resulting in displacement of the first displacement component; rotating the second grip will cause the second rotating rod to rotate, which in turn causes the second displacement component to rotate, resulting in displacement of the second displacement component.

[0023] Preferably, the first rotating rod is detachably connected to the end of the first displacement component, and the second rotating rod is detachably connected to the end of the second displacement component.

[0024] The first rotating rod is connected to the end of the first displacement component, and a small rotation of the first rotating rod causes a large displacement of the first displacement component; the second rotating rod is connected to the end of the second displacement component, and a small rotation of the second rotating rod causes a large displacement of the second displacement component; thus ensuring that the first displacement component and the second displacement component can be connected to each other to achieve limiting.

[0025] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model provides an orifice plate valve for a natural gas transmission and distribution station. A first displacement component moves with the rotation of a balancing valve, and a second displacement component moves with the rotation of a spool valve. When the balancing valve is closed, the first displacement component moves to a designated position, placing it on the displacement path of the second displacement component. As the second displacement component moves with the spool valve, the first displacement component abuts against it, hindering its movement and preventing the spool valve from rotating. When the balancing valve is open, the first displacement component moves with the rotation of the balancing valve, leaving the displacement path of the second displacement component, allowing the second displacement component to move with the rotation of the spool valve, thus enabling the spool valve to rotate freely. The first displacement component limits the second displacement component, ensuring that the balancing valve and the spool valve can only operate according to a specified opening and closing sequence, thereby preventing natural gas leakage and avoiding personal injury to workers from high-pressure gas. 2. This utility model provides an orifice plate valve for a natural gas transmission and distribution station. By connecting a first displacement component and a second displacement component, the second displacement component is limited, so that when the balance valve is closed, the slide valve cannot be opened, thereby preventing natural gas leakage, avoiding operator misoperation, ensuring operator safety, and having good economic and practical value. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of an orifice plate valve for a natural gas transmission and distribution station according to the present invention; Figure 2 This is a schematic diagram of the balancing valve locking state of an orifice plate valve used in a natural gas transmission and distribution station according to the present invention. Figure 3This is a schematic diagram of the slide valve locking state of an orifice plate valve used in a natural gas transmission and distribution station according to the present invention. Figure 4 This is a schematic diagram of the structure of a limiting component for an orifice plate valve used in a natural gas transmission and distribution station according to the present invention. Figure 5 This is a schematic diagram of the structure of a limiting component for an orifice plate valve used in a natural gas transmission and distribution station according to the present invention. Figure 6 This is a schematic diagram of the structure of the first rotating rod of an orifice plate valve for a natural gas transmission and distribution station according to the present invention; Figure 7 This is a schematic diagram of the structure of the second rotating rod of an orifice plate valve used in a natural gas transmission and distribution station according to the present invention.

[0027] Marked in the image: 1-Valve body, 2-Balance valve, 21-First grip, 22-First rotating rod, 3-Slide valve, 31-Second grip, 32-Second rotating rod, 4-First displacement assembly, 41-First rod body, 42-Second rod body, 43-Limiting assembly, 431-Support plate, 432-Limiting block, 433-Slide groove, 434-Limiting groove, 435-Sliding part, 44-Limiting part, 45-Abutting part, 5-Second displacement assembly, 51-Block body, 52-Third rod body. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] Example 1 like Figures 1-7 As shown, an orifice plate valve for a natural gas transmission and distribution station is specifically composed of a rectangular valve body 1, a first displacement component 4, and a second displacement component 5. A slide valve 3 and a balance valve 2 are provided on the valve body 1, with the slide valve 3 and balance valve 2 located on two adjacent sides of the valve body 1, respectively. The first displacement component 4 is connected to the balance valve 2, and the second displacement component 5 is connected to the slide valve 3. When the balance valve 2 rotates, it can drive the first displacement component 4 to move. When the slide valve 3 rotates, it can drive the second displacement component 5 to move. After the first displacement component 4 and the second displacement component 5 are connected, the first displacement component 4 can limit the position of the second displacement component 5.

[0035] The first displacement component 4 can be displaced with the rotation of the balance valve 2, and the second displacement component 5 can be displaced with the rotation of the slide valve 3. When the balance valve 2 is closed, the first displacement component 4 is displaced to a designated position, so that the first displacement component 4 is on the displacement path of the second displacement component 5. When the second displacement component 5 is displaced with the slide valve 3, the first displacement component 4 abuts against the second displacement component 5, so that the first displacement component 4 hinders the displacement of the second displacement component 5, thereby preventing the slide valve 3 from rotating. After the balance valve 2 is opened, the first displacement component 4 is displaced with the rotation of the balance valve 2, and the first displacement component 4 leaves the displacement path of the second displacement component 5, so that the second displacement component 5 can be displaced with the rotation of the slide valve 3, thereby allowing the slide valve 3 to rotate freely. The first displacement component 4 can limit the second displacement component 5, so that the balance valve 2 and the slide valve 3 can only be operated according to the specified opening and closing sequence, thereby avoiding natural gas leakage and preventing high-pressure gas from causing personal injury to the operators. In one or more embodiments, the first displacement component 4 is composed of a first rod 41, a second rod 42, and a limiting component 43. The first rod 41 is connected to the balance valve 2, and the second rod 42 is hinged to the first rod 41. The balance valve 2 and the second rod 42 are spaced apart on the first rod 41. The second rod 42 is hinged to the limiting component 43, and the second rod 42 can push the limiting component 43 to move horizontally. The limiting component 43 is used to limit the second displacement component 5. Specifically, one end of the first rod 41 is connected to the second rod 42, and the other end is connected to the balance valve 2. When the balance valve 2 rotates, it drives the first rod 41 to rotate. One end of the second rod 42 is hinged to the first rod 41, and the other end is hinged to the limiting component 43. When the first rod 41 rotates, the second rod 42 causes the limiting component 43 to move horizontally, so that the limiting component 43 can move onto the movement trajectory of the second displacement component 5 to obstruct the second displacement component 5, thereby limiting the second displacement component 5.

[0036] In an optional embodiment, the limiting component 43 consists of a limiting block 432 and a support plate 431. The limiting block 432 is slidably connected to the support plate 431, the support plate 431 is horizontally arranged, and the support plate 431 is connected to the valve body 1. The second rod 42 is hinged to the limiting block 432. The limiting block 432 is used to limit the second displacement component 5. Specifically, the support plate 431 is provided with a sliding groove 433, and the limiting block 432 is provided with a sliding member 435. The sliding groove 433 and the sliding member 435 are connected in cooperation. The sliding groove 433 is parallel to the side of the valve body 1 where the balance valve 2 is installed, and the sliding groove 433 is spaced apart from the side of the valve body 1, so that there is a gap between the limiting block 432 and the valve body 1, thereby allowing the limiting block 432 to slide smoothly. The support plate 431 is connected to the side of the valve body 1 where the balance valve 2 is installed, and the support plate 431 is perpendicular to the side of the valve body 1 where the balance valve 2 is installed.

[0037] In an optional embodiment, a limiting groove 434 is provided on the limiting block 432, and the second displacement component 5 can be locked and connected in the limiting groove 434. Specifically, after the slide valve 3 is opened to the position, the second displacement component 5 is inserted into the limiting groove 434, making it difficult for the limiting block 432 to move, thereby making it difficult for the balance valve 2 to be turned. After the slide valve 3 is closed, the second displacement component 5 is disengaged from the limiting groove 434, so that the balance valve 2 can be closed.

[0038] In an optional embodiment, the second rod 42 is provided with a limiting member 44, which can be connected to the first rod 41. The limiting member 44 is used to limit the relative position of the first rod 41 and the second rod 42. Specifically, the limiting member 44 is a columnar structure. The limiting member 44 serves as the hinge axis of the first rod 41 and the second rod 42, allowing the first rod 41 and the second rod 42 to be hinged. The columnar structure passes through the second rod 42 and is threadedly connected to the second rod 42. The columnar structure passes through the second rod 42 and has an abutment portion 45 at its end. By rotating the columnar structure, the abutment portion 45 abuts against the first rod 41, and the second rod 42 abuts against the first rod 41. The first rod 41 and the second rod 42 are limited by mutual compression.

[0039] In one or more embodiments, the second displacement component 5 includes a third rod 52 connected to the slide valve 3. The first displacement component 4 can limit the third rod 52. The end of the third rod 52 is provided with a block 51, which is hinged to the third rod 52. The block 51 is used to connect with the first displacement component 4. Specifically, the block 51 is a rectangular block 51, which can rotate freely at the end of the third rod 52. When it is necessary to keep the slide valve 3 closed, the block 51 abuts against the side wall of the limiting block 432, making it difficult for the third rod 52 to rotate. When it is necessary to keep the balance valve 2 open, the block 51 is embedded in the limiting groove 434 by rotating the slide valve 3, so that the block 51 restricts the displacement of the limiting block 432, thereby preventing the balance valve 2 from rotating. In one or more embodiments, the balance valve 2 includes a first handle 21 and a first rotating rod 22, the first handle 21 being connected to the first rotating rod 22, and the first displacement component 4 being connected to the first rotating rod 22; the slide valve 3 includes a second handle 31 and a second rotating rod 32, the second handle 31 being connected to the second rotating rod 32, and the second displacement component 5 being connected to the second rotating rod 32; specifically, rotating the first handle 21 causes the first displacement component 4 to move, and rotating the second handle 31 causes the second displacement component 5 to move.

[0040] In an optional embodiment, the first rotating rod 22 is detachably connected to the end of the first displacement component 4, and the second rotating rod 32 is detachably connected to the end of the second displacement component 5. Specifically, a first limiting hole is provided at the end of the first rod body 41, and a second limiting hole is provided at the end of the third rod body 52. ​​The first rotating rod 22 passes through the first limiting hole to limit the first rotating rod 22 to the first rod body 41, and the second rotating rod 32 passes through the second limiting hole to limit the second rotating rod 32 to the second rod body 42.

[0041] In a specific implementation, when the balance valve 2 is closed, the limiting block 432 abuts against the third rod 52, making it difficult for the second handle 31 of the slide valve 3 to rotate. When the balance valve 2 is closed, the horizontal slider moves away from the third rod 52, allowing the second handle 31 to rotate freely. This ensures that the orifice valve 3 can only be opened after the balance valve 2 is opened. The block 51 connected to the slide valve 3 moves down and inserts into the limiting groove 434 at the rear end of the limiting block 432 when the slide valve 3 is rotated open. By preventing the limiting block 432 from displacing, the balance valve 2 is prevented from rotating, requiring the operator to close the slide valve 3 before closing the balance valve 2.

[0042] 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 orifice plate valve for a natural gas transmission and distribution station, comprising a valve body (1), wherein a slide valve (3) and a balancing valve (2) are provided on the valve body (1), the slide valve (3) and the balancing valve (2) being located on two mutually perpendicular sides of the valve body (1), characterized in that, Also includes: The first displacement component (4) is connected to the balance valve (2); The second displacement component (5) is connected to the slide valve (3); The first displacement component (4) can limit the second displacement component (5).

2. The orifice plate valve for a natural gas transmission and distribution station according to claim 1, characterized in that, The first displacement component (4) includes a first rod (41), a second rod (42), and a limiting component (43). The first rod (41) is connected to the balance valve (2), and the second rod (42) is hinged to the first rod (41). The balance valve (2) and the second rod (42) are spaced apart on the first rod (41). The second rod (42) is hinged to the limiting component (43). The second rod (42) can push the limiting component (43) to move in the horizontal direction. The limiting component (43) is used to limit the second displacement component (5).

3. The orifice plate valve for a natural gas transmission and distribution station according to claim 2, characterized in that, The limiting component (43) includes a limiting block (432) and a support plate (431). The limiting block (432) is slidably connected to the support plate (431). The support plate (431) is horizontally arranged and connected to the valve body (1). The second rod (42) is hinged to the limiting block (432). The limiting block (432) is used to limit the second displacement component (5).

4. The orifice plate valve for a natural gas transmission and distribution station according to claim 3, characterized in that, The support plate (431) is provided with a sliding groove (433), and the limiting block (432) is provided with a sliding member (435). The sliding groove (433) and the sliding member (435) are connected in cooperation.

5. An orifice plate valve for a natural gas transmission and distribution station according to claim 3, characterized in that, The limiting block (432) has a limiting groove (434), and the second displacement component (5) can be locked and connected in the limiting groove (434).

6. An orifice plate valve for a natural gas transmission and distribution station according to claim 2, characterized in that, The second rod (42) is provided with a limiting member (44), which is threadedly connected to the second rod (42) and rotatably connected to the first rod (41). The limiting member (44) is provided with an abutting part (45), which can abut against the first rod (41).

7. The orifice plate valve for a natural gas transmission and distribution station according to claim 1, characterized in that, The second displacement component (5) includes a third rod (52), which is connected to the slide valve (3), and the first displacement component (4) holds the third rod (52).

8. An orifice plate valve for a natural gas transmission and distribution station according to claim 7, characterized in that, The end of the third rod (52) is provided with a block (51), which is hinged to the third rod (52) and is used to connect with the first displacement component (4).

9. An orifice plate valve for a natural gas transmission and distribution station according to any one of claims 1-8, characterized in that, The balance valve (2) includes a first handle (21) and a first rotating rod (22), the first handle (21) being connected to the first rotating rod (22), and the first displacement assembly (4) being connected to the first rotating rod (22); the slide valve (3) includes a second handle (31) and a second rotating rod (32), the second handle (31) being connected to the second rotating rod (32), and the second displacement assembly (5) being connected to the second rotating rod (32).

10. An orifice plate valve for a natural gas transmission and distribution station according to claim 9, characterized in that, The first rotating rod (22) is detachably connected to the end of the first displacement component (4), and the second rotating rod (32) is detachably connected to the end of the second displacement component (5).

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