Natural gas pipeline pressure regulating device

Abstract

This utility model belongs to the field of natural gas pipeline technology and discloses a natural gas pipeline pressure regulating device. The regulating valve body of the device is located between two sections of conveying pipe. Two connecting pipes are connected to opposite sides of the regulating valve body. The opposite ends of the two connecting pipes are connected to two fixed plates, and the adjacent ends of the two conveying pipes are connected to the other two fixed plates. All four fixed plates are provided with sliding grooves. The threads at both ends of the threaded rod of the disassembly assembly have opposite directions. Two threaded sleeves and two locking blocks are screwed to the threaded rod. The portion of the threaded rod clamped by the threaded sleeves and locking blocks slides within the sliding groove. The opposite ends of the two threaded sleeves can abut against the two fixed plates corresponding to the two connecting pipes, and the two locking blocks can engage with the two fixed plates corresponding to the two conveying pipes, causing the two fixed plates on the same side of the regulating valve body to abut against each other. This device simplifies the disassembly process of the regulating valve body, shortens the time required, and effectively improves disassembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of natural gas pipeline technology, and in particular to a natural gas pipeline pressure regulating device. Background Technology

[0002] Natural gas pipeline pressure regulating devices are key components in the transmission and distribution system. They are used to precisely regulate the pressure and flow of natural gas to ensure a safe and stable gas supply. They consist of pressure regulators, filters, safety valves, etc. They adapt to pressure changes by controlling the valve opening. Their importance lies in preventing equipment damage and safety accidents, and ensuring the operation of the system.

[0003] After a period of use, existing natural gas pipeline pressure regulating devices will inevitably accumulate some dirt inside, requiring the removal and cleaning of the regulating valve body. However, the regulating valve body is usually fixed to the delivery pipe with bolts, and the bolts need to be completely removed during disassembly. Therefore, maintenance personnel will inevitably spend a lot of time and effort when disassembling the regulating valve body. Utility Model Content

[0004] The purpose of this utility model is to provide a pressure regulating device for natural gas pipelines, solve the problem of time-consuming and cumbersome disassembly process of the regulating valve body, and thus improve the disassembly efficiency of the regulating valve body.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A natural gas pipeline pressure regulating device includes a regulating valve body, two delivery pipes, two connecting pipes, four fixing plates, and a disassembly assembly. The regulating valve body is located between the two delivery pipes. Two connecting pipes are connected to opposite sides of the regulating valve body. Two fixing plates are connected to opposite ends of the two connecting pipes, and two fixing plates are connected to adjacent ends of the two delivery pipes. Each of the four fixing plates has a sliding groove. The disassembly assembly includes a threaded rod, two threaded sleeves, and two locking blocks. The threads at both ends of the threaded rod have opposite directions. The two threaded sleeves are helically connected to the threaded rod, and the two locking blocks are helically connected to both ends of the threaded rod. The portion of the threaded rod clamped by the threaded sleeves and locking blocks is slidably disposed in the sliding groove. The opposite ends of the two threaded sleeves can abut against the two fixing plates corresponding to the two connecting pipes, and the two locking blocks can lock against the two fixing plates corresponding to the two delivery pipes, so that the two fixing plates on the same side of the regulating valve body abut against each other.

[0007] As an alternative, the two fixed plates connected to the conveying pipe have slots on their side walls. These slots are connected to the sliding groove and are opened along the axial direction perpendicular to the threaded rod. The cross-section of the slot is consistent with the cross-section of the locking block.

[0008] As an alternative, the threaded rod is provided with a first hexagonal block, which is fixedly connected to the threaded rod, and the threads of the threaded rod on both sides of the first hexagonal block are opposite in direction.

[0009] As an alternative, each threaded sleeve has a second hexagonal block fixedly connected to both ends, and the second hexagonal blocks on the two threaded sleeves that are away from the first hexagonal block can respectively abut against the two fixed plates connected to the connecting pipe.

[0010] As an optional solution, the natural gas pipeline pressure regulating device also includes a sealing gasket, which is provided between the two fixing plates on the same side of the regulating valve body.

[0011] As an optional solution, the threaded sleeve has insertion holes on its sidewalls.

[0012] As an alternative, the natural gas pipeline pressure regulating device includes two sets of the disassembly and assembly components, which are symmetrically arranged on both sides of the regulating valve body along the axial direction of the regulating valve body.

[0013] As an alternative, a fixing member is provided on the top of the regulating valve body, the bottom end of which is fixedly connected to the top end of the regulating valve body, and the fixing member is provided with a protective shell.

[0014] As an alternative, the fastener has a fixing rod fixedly connected to its side wall. The outer diameter of the fastener is the same as the inner diameter of the protective shell. The side wall of the protective shell is provided with a fixing groove, and the fixing rod is slidably connected to the groove wall.

[0015] As an alternative, the top of the protective shell is fixedly connected to a handle, which is rotated to allow the fixing rod to slide along the wall of the fixing groove.

[0016] Beneficial effects:

[0017] The natural gas pipeline pressure regulating device provided by this utility model allows for easy disassembly of the regulating valve body. First, rotate the two threaded sleeves to disengage them from the fixing plate connected to the connecting pipe. Then, rotate the threaded rod to move the end blocks in the opposite direction, releasing the fixing plate connected to the delivery pipe. Finally, pull the threaded sleeves to remove the threaded rod and threaded sleeves from the groove, thus completing the disassembly of the regulating valve body. Compared to traditional fixing methods that require complete removal of screws, this solution only requires rotating the threaded rod and threaded sleeves a few times, eliminating the need to unscrew each screw individually. This significantly reduces disassembly steps, greatly shortens operation time, effectively improves maintenance efficiency, and ensures stable, reliable, and easy disassembly due to the tight fit of all components. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the natural gas pipeline pressure regulating device provided in this embodiment of the utility model;

[0019] Figure 2 This is an exploded schematic diagram of the natural gas pipeline pressure regulating device provided in this embodiment of the utility model;

[0020] Figure 3 This is an exploded schematic diagram of the protective shell provided in this embodiment of the utility model;

[0021] Figure 4 This is an exploded view of the disassembly and assembly components provided in this embodiment of the utility model.

[0022] In the picture:

[0023] 1. Control valve body; 2. Fixing plate; 3. Protective shell; 4. Handle; 5. Delivery pipe; 6. Connecting pipe; 7. Sealing gasket; 8. Threaded sleeve; 9. Second hexagonal block; 10. Threaded rod; 11. Fixing component; 12. Fixing groove; 13. Fixing rod; 14. Locking block; 15. Insertion hole; 16. Locking groove; 17. Slide groove; 18. First hexagonal block. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0025] In the description of this utility model, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part of the device. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] In the description of this embodiment, the terms "upper" and "lower," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0028] This embodiment provides a natural gas pipeline pressure regulating device, such as... Figures 1-4 As shown, the natural gas pipeline pressure regulating device includes a regulating valve body 1, two delivery pipes 5, two connecting pipes 6, four fixing plates 2, and a disassembly / assembly assembly. The regulating valve body 1 is located between the two delivery pipes 5. The two opposite sides of the regulating valve body 1 are connected to two connecting pipes 6, and the opposite ends of the two connecting pipes 6 are connected to two of the fixing plates 2. The adjacent ends of the two delivery pipes 5 are connected to the other two fixing plates 2. Each of the four fixing plates 2 is provided with a sliding groove 17. The disassembly / assembly assembly includes a threaded rod 10, two threaded sleeves 8, and two locking blocks 14. The threads at both ends of the threaded rod 10 have opposite directions of rotation. Two threaded sleeves 8 are helically connected to the threaded rod 10. Two locking blocks 14 are helically connected to both ends of the threaded rod 10. The portion of the threaded rod 10 clamped by the threaded sleeves 8 and locking blocks 14 is slidably disposed in the slide groove 17. The opposite ends of the two threaded sleeves 8 can respectively abut against the two fixing plates 2 corresponding to the two connecting pipes 6. The two locking blocks 14 can respectively lock against the two fixing plates 2 corresponding to the two conveying pipes 5, so that the two fixing plates 2 on the same side of the regulating valve body 1 abut against each other.

[0029] When disassembling the regulating valve body 1, simply rotate the two threaded sleeves 8 to disengage the fixing plate 2 connected to the connecting pipe 6; then rotate the threaded rod 10 to move the end blocks 14 in the opposite direction, releasing the fixing plate 2 connected to the delivery pipe 5; finally, pull the threaded sleeves 8 to remove the threaded rod 10 and threaded sleeves 8 from the slide groove 17, thus completing the disassembly of the regulating valve body 1. Compared to the traditional fixing method that requires complete removal of screws, this solution only requires rotating the threaded rod 10 and threaded sleeves 8 a few turns, eliminating the need to unscrew each screw individually, significantly reducing disassembly steps, greatly shortening operation time, effectively improving maintenance efficiency, and ensuring that the components fit tightly, making the disassembly process stable, reliable, simple, and easy.

[0030] Specifically, long-distance natural gas pipelines, urban distribution pipelines, and user-dedicated pipelines all require the installation of pressure regulating devices, and the two-section transmission pipe 5 belongs to one of the above-mentioned pipeline types.

[0031] like Figure 1 and Figure 2As shown, the side walls of the two fixed plates 2 connected to the conveying pipe 5 are provided with slots 16, which are connected to the sliding groove 17. The slots are opened along the axial direction perpendicular to the threaded rod 10, and the cross-section of the slot 16 is consistent with the cross-section of the locking block 14. When the locking block 14 moves to the position of the slot 16 under the drive of the threaded rod 10, the two can fit perfectly, so that the locking block 14 can be tightly embedded in the slot 16, preventing the locking block 14 from shaking in the slot 16. During disassembly, the rotation of the threaded rod 10 causes the locking blocks 14 at both ends to move in opposite directions and completely move out of the slot 16.

[0032] Specifically, such as Figure 1 and Figure 2 As shown, both the locking block 14 and the locking slot 16 are cuboids. During normal connection, the locking block 14 moves into the locking slot 16 and abuts against the bottom of the slot 16, with each side fitting against the inner wall. Under the action of the threaded rod 10, it is tightly clamped, which can resist external forces such as airflow impact and vibration, and ensure the stable connection between the two adjacent fixing plates 2.

[0033] like Figure 1 , Figure 2 , Figure 4 As shown, a first hexagonal block 18 is provided on the threaded rod 10, and the first hexagonal block 18 is fixedly connected to the threaded rod 10. The threads of the threaded rod 10 on both sides of the first hexagonal block 18 have opposite directions of rotation. The fixed connection of the first hexagonal block 18 to the threaded rod 10 with opposite thread directions allows the locking blocks 14 to move synchronously in opposite directions, facilitating simultaneous operation of both locking blocks 14 during the installation and disassembly of the pressure regulating device, thus improving efficiency. The hexagonal block shape is compatible with common tools, making operation convenient. This design also ensures the symmetry and stability of the movement of the locking blocks 14, facilitating precise control of the locking block 14's position and improving connection quality and reliability.

[0034] like Figure 1 , Figure 2 , Figure 4 As shown, each threaded sleeve 8 has a second hexagonal block 9 fixedly connected to both ends. The second hexagonal blocks 9 on the two threaded sleeves 8, away from the first hexagonal block 18, can respectively abut against the two fixing plates 2 connected to the connecting pipe 6. The second hexagonal blocks 9 at both ends of each threaded sleeve 8 are compatible with general-purpose tools (such as wrenches), facilitating multi-position operation and improving operational convenience. They can accurately abut against the fixing plates 2 connected to the connecting pipe 6, evenly distributing pressure and achieving stable fixation. The abutment degree can be flexibly adjusted, facilitating equipment maintenance and disassembly.

[0035] like Figure 2As shown, the natural gas pipeline pressure regulating device also includes sealing gaskets 7, with sealing gaskets 7 provided between the two fixing plates 2 on the same side of the regulating valve body 1. The sealing gaskets 7 between the two fixing plates 2 on the same side of the regulating valve body 1 can fill any small gaps that may exist between the fixing plates 2. When natural gas flows in the pipeline, the sealing gaskets 7 can effectively prevent gas leakage from these gaps, avoiding safety hazards caused by natural gas leakage, and maintaining good sealing performance under different pressure environments.

[0036] Specifically, the sealing gasket 7 has the same cross-sectional shape as the fixing plate 2, and it also has a groove for accommodating the threaded rod 10. The material of the sealing gasket 7 can be rubber, asbestos, or polytetrafluoroethylene, and there is no specific limitation.

[0037] like Figure 1 , Figure 2 , Figure 4 As shown, the threaded sleeve 8 has insertion holes 15 on its side wall. Insertion holes 15 provide a dedicated position for the operator to insert tools. When it is necessary to rotate the threaded sleeve 8, a suitable tool can be inserted into the insertion hole 15, and torque can be applied by the tool to rotate the threaded sleeve 8. Compared to rotating the threaded sleeve 8 directly by hand, insertion holes 15 provide a stable and effective point of force, making the rotation operation easier and more accurate. Specifically, the threaded sleeve 8 has multiple insertion holes 15 spaced circumferentially, allowing the operator to flexibly select the appropriate insertion hole 15 to insert tools according to the actual situation, without needing to significantly adjust the position of the threaded sleeve 8 or the tool, greatly improving the convenience of operation.

[0038] like Figure 1 and Figure 2 As shown, the natural gas pipeline pressure regulating device includes two sets of disassembly and assembly components, which are symmetrically arranged on both sides of the regulating valve body 1 along its axial direction. This symmetrical arrangement of the two sets of disassembly and assembly components along the axial direction of the regulating valve body 1 ensures that the regulating valve body 1 is subjected to uniform force on both sides. The symmetrical structural design makes the connection between the regulating valve body 1 and components such as the delivery pipe 5 and connecting pipe 6 more stable, preventing the regulating valve body 1 from shaking or shifting during operation.

[0039] like Figure 3 As shown, a fixing member 11 is provided on the top of the regulating valve body 1, and the bottom end of the fixing member 11 is fixedly connected to the top end of the regulating valve body 1. The fixing member 11 is provided with a protective shell 3. This facilitates the protection of the regulating valve body 1 and prevents the regulating valve body 1 from being damaged by wind and sun.

[0040] like Figure 3As shown, a fixing rod 13 is fixedly connected to the side wall of the fixing member 11. The outer diameter of the fixing member 11 is consistent with the inner diameter of the protective shell 3. The side wall of the protective shell 3 is provided with a fixing groove 122, and the fixing rod 13 is slidably connected to the groove wall of the fixing groove 122. The consistency between the outer diameter of the fixing member 11 and the inner diameter of the protective shell 3 allows the fixing member 11 to be accurately embedded in the protective shell 3, achieving precise positioning. The sliding connection between the fixing rod 13 and the groove wall of the fixing groove 12 further enhances the stability of the connection between the fixing member 11 and the protective shell 3. After the fixing member 11 is installed in the protective shell 3, the fixing rod 13 slides in the fixing groove 12 and is finally positioned, so that the fixing member 11 has stable support in the protective shell 3 and can withstand a certain amount of external force without shaking or displacement.

[0041] Specifically, the fixing groove 12 is L-shaped. The fixing groove 12 is first cut along the axial direction of the protective shell 3 for a certain length, and then continues to extend along the circumferential direction of the protective shell 3. When disassembling the protective shell 3, the operator first rotates the protective shell 3 in the opposite direction to the rotation direction during installation, causing the fixing rod 13 to slide along the circumferential fixing groove 12 towards the turning point of the axial fixing groove 12. After the fixing rod 13 returns to the axial fixing groove 12, the operator then pulls the protective shell 3 along the axial direction, gradually separating the protective shell 3 from the fixing member 11. In this way, the cooperation of the L-shaped fixing groove 12 and the fixing rod 13 achieves a connection effect that is both stable and easy to disassemble between the fixing member 11 and the protective shell 3, bringing convenience to the installation, maintenance, and repair of the natural gas pipeline pressure regulating device. Furthermore, the protective shell 3 is symmetrically provided with two fixing grooves 12 along the axial direction, and the fixing member 11 is also provided with two fixing rods 13 at corresponding positions, enhancing the connection stability.

[0042] like Figures 1-3 As shown, a handle 4 is fixedly connected to the top of the protective shell 3. The handle 4 is rotated to allow the fixing rod 13 to slide along the wall of the fixing groove 12. The handle 4 provides an easy grip and force application point for the operator. When installing or removing the protective shell 3, the operator can rotate the handle 4 to rotate the protective shell 3, thereby causing the fixing rod 13 to slide along the wall of the fixing groove 12.

[0043] The process of disassembling the regulating valve body 1 of the natural gas pipeline pressure regulating device provided by this utility model is roughly as follows: First, rotate the two threaded sleeves 8 to disengage the fixing plate 2 connected to the connecting pipe 6; then rotate the threaded rod 10 to drive the two end blocks 14 to move away from each other, thereby releasing the locking groove 16 of the fixing plate 2 connected to the delivery pipe 5; finally, pull the threaded sleeves 8 to remove the threaded rod 10 and the threaded sleeves 8 from the slide groove 17, thereby releasing the fixation of the regulating valve body 1.

[0044] The installation process of the regulating valve body 1 of the natural gas pipeline pressure regulating device provided by this utility model is roughly as follows: First, align and tightly fit the fixing plates 2 connected to the connecting pipe 6 on both sides of the regulating valve body 1 with the fixing plates 2 connected to the delivery pipe 5. Then, insert the threaded rod 10, threaded sleeve 8, and locking block 14 into the sliding groove 17, rotate the threaded rod 10 to bring the locking blocks 14 at both ends closer to each other until the locking grooves 16 of the two fixing plates 2 connected to the delivery pipe 5 are tightly abutted, completing the initial fixing of the connection between the regulating valve body 1 and the delivery pipe 5. Then, rotate the two threaded sleeves 8 to make them tightly abut against the two fixing plates 2 connected to the connecting pipe 6, further stabilizing the connection between the regulating valve body 1 and the connecting pipe 6, completing the installation of the regulating valve body 1.

[0045] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A natural gas pipeline pressure regulating device, characterized in that, The system includes a regulating valve body (1), two delivery pipes (5), two connecting pipes (6), four fixing plates (2), and a disassembly assembly. The regulating valve body (1) is located between the two delivery pipes (5). The two opposite sides of the regulating valve body (1) are connected to the two connecting pipes (6). The opposite ends of the two connecting pipes (6) are connected to two of the fixing plates (2), and the adjacent ends of the two delivery pipes (5) are connected to the other two fixing plates (2). All four fixing plates (2) are provided with sliding grooves (17). The disassembly assembly includes a threaded rod (10), two threaded sleeves (8), and two locking blocks (14). The two ends of the threaded rod (10) are... The threads are opposite in direction. The two threaded sleeves (8) are helically connected to the threaded rod (10). The two locking blocks (14) are helically connected to both ends of the threaded rod (10). The threaded rod (10) clamped by the threaded sleeves (8) and the locking blocks (14) is slidably disposed in the groove (17). The opposite ends of the two threaded sleeves (8) can respectively abut against the two fixing plates (2) corresponding to the two connecting pipes (6). The two locking blocks (14) can respectively lock against the two fixing plates (2) corresponding to the two conveying pipes (5), so that the two fixing plates (2) on the same side of the regulating valve body (1) abut against each other.

2. The natural gas pipeline pressure regulating device according to claim 1, characterized in that, The two fixed plates (2) connected to the conveying pipe (5) have slots (16) on their side walls. The slots (16) are connected to the sliding groove (17). The slots (16) are opened along the axial direction perpendicular to the threaded rod (10). The cross section of the slots (16) is consistent with the cross section of the locking block (14).

3. The natural gas pipeline pressure regulating device according to claim 1, characterized in that, The threaded rod (10) is provided with a first hexagonal block (18), which is fixedly connected to the threaded rod (10). The threads of the threaded rod (10) on both sides of the first hexagonal block (18) are opposite.

4. The natural gas pipeline pressure regulating device according to claim 3, characterized in that, Each threaded sleeve (8) is fixedly connected to two ends with a second hexagonal block (9), and the second hexagonal block (9) on the two threaded sleeves (8) away from the first hexagonal block (18) can respectively abut against the two fixing plates (2) connected to the connecting pipe (6).

5. The natural gas pipeline pressure regulating device according to claim 1, characterized in that, The natural gas pipeline pressure regulating device also includes a sealing gasket (7), and the sealing gasket (7) is provided between the two fixing plates (2) on the same side of the regulating valve body (1).

6. The natural gas pipeline pressure regulating device according to claim 1, characterized in that, The threaded sleeve (8) has an insertion hole (15) on its side wall.

7. The natural gas pipeline pressure regulating device according to any one of claims 1-6, characterized in that, The natural gas pipeline pressure regulating device includes two sets of disassembly and assembly components, which are symmetrically arranged on both sides of the regulating valve body (1) along the axial direction of the regulating valve body (1).

8. The natural gas pipeline pressure regulating device according to claim 1, characterized in that, The top of the regulating valve body (1) is provided with a fixing member (11), the bottom end of the fixing member (11) is fixedly connected to the top end of the regulating valve body (1), and the fixing member (11) is provided with a protective shell (3).

9. The natural gas pipeline pressure regulating device according to claim 8, characterized in that, The side wall of the fixing member (11) is fixedly connected to a fixing rod (13). The outer diameter of the fixing member (11) is consistent with the inner diameter of the protective shell (3). The side wall of the protective shell (3) is provided with a fixing groove (12). The fixing rod (13) is slidably connected to the groove wall of the fixing groove (12).

10. The natural gas pipeline pressure regulating device according to claim 9, characterized in that, The top of the protective shell (3) is fixedly connected to a handle (4), which is rotated to make the fixing rod (13) slide along the groove wall of the fixing groove (12).

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