Gas pipeline pressure opening plugging device

Abstract

The utility model provides a kind of gas pipeline does not stop the pressure hole plugging equipment of delivery, comprising: plugging device body, plugging mechanism is provided in the inside of plugging device body, the upper and lower ends of plugging device body are all provided with mounting mechanism, the upper end of plugging device body is fixedly connected with upper section conveying pipe by mounting mechanism, the lower end of plugging device body is fixedly connected with lower section conveying pipe one and lower section conveying pipe two by mounting mechanism, compared with prior art, the utility model has the following beneficial effects: by setting plugging mechanism, the collaborative displacement of piston sealing ring one and piston sealing ring two is controlled using handle, the downstream pipeline of one side can be sealed accurately, while the pipeline of the other side is always kept unobstructed, which makes gas or fluid medium can be continuously transported through standby channel when the sealed pipe section needs to be maintained, overhauled or drilled, completely avoids the inconvenience problem of user caused by must stop delivery in traditional operation.

Description

Technical Field

[0001] This utility model belongs to the field of hole-sealing equipment, and specifically relates to a gas pipeline hole-sealing equipment that operates under pressure without interrupting gas transmission. Background Technology

[0002] As a crucial infrastructure for urban energy supply, the safe and stable operation of gas pipelines directly impacts people's livelihoods and industrial production. During routine maintenance, renovation, or expansion of gas pipeline networks, operations such as opening holes, sealing, replacing pipe sections, or adding branches are frequently required. While mechanical structures create physical isolation within the pipeline during these renovations, forming a sealing barrier using plugs or sealing heads, this inevitably interrupts the gas flow—a process known as "shutdown." This not only leads to gas supply interruptions for downstream users, affecting normal production and daily life, but also poses safety hazards and environmental pollution due to shutdowns, venting, and replacement processes. Therefore, we aim to design a gas pipeline pressurized opening and sealing device that does not interrupt gas supply to address this problem. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a gas pipeline uninterrupted pressurized opening and sealing device to solve the problems mentioned in the background technology.

[0004] This utility model is achieved through the following technical solution: a gas pipeline non-stop pressurized opening and sealing device, comprising: a sealing device body, a sealing mechanism is provided inside the sealing device body, and an installation mechanism is provided at both the upper and lower ends of the sealing device body. An upper section conveying pipe is fixedly connected to the upper end of the sealing device body through the installation mechanism, and a lower section conveying pipe one and a lower section conveying pipe two are fixedly connected to the lower end of the sealing device body through the installation mechanism. The sealing mechanism includes a threaded rod, which is screwed into the inside of the sealing device body by threads. A connecting plate is sleeved on the outside of the threaded rod through a bearing. A piston sealing ring is fixedly installed on the connecting plate. A main air outlet port is provided on the lower right side of the sealing device body. A connecting plate two is fixedly sleeved on the outer side of the left end of the threaded rod, and a piston sealing ring two is fixedly installed on the connecting plate two. A secondary air outlet port is provided on the lower left side of the sealing device body.

[0005] By setting up a sealing mechanism and using a handle to control the coordinated displacement of piston sealing ring one and piston sealing ring two, the downstream pipeline on one side can be precisely sealed, while the pipeline on the other side remains unobstructed. This allows the gas or fluid medium to be continuously transported through the backup channel when maintenance, repair, or drilling is required on the sealed pipeline section, completely avoiding the inconvenience to users caused by the need to stop the flow in traditional operations.

[0006] In a preferred embodiment, the right end of the threaded rod extends to the outside of the sealing device body and is fixedly connected to an operating handle.

[0007] In a preferred embodiment, both piston seal ring one and piston seal ring two are made of modified polytetrafluoroethylene material.

[0008] In a preferred embodiment, the installation mechanism includes a through groove located at the upper end of the sealing device body. A ball bearing is movably fitted inside the through groove. A sliding sleeve is slidably fitted onto the outer side of the upper end of the sealing device body. A fixing ring is fixedly fitted onto the outer side of the upper end of the sealing device body. The fixing ring and the sliding sleeve are elastically connected by a spring. By setting up the installation mechanism, a simple "push sliding sleeve - screw in insertion - release" action is used to complete the fixation under the spring's rebound force and the mechanical locking action of the ball bearing. This eliminates the multiple bolt tightening steps required for traditional flange connections, greatly improving construction efficiency.

[0009] In a preferred embodiment, the through groove is a trumpet-shaped structure with a diameter decreasing from the outside to the inside, and the minimum diameter of the through groove is smaller than the maximum diameter of the ball.

[0010] In a preferred embodiment, the inner side of the sliding sleeve is provided with an annular groove that matches the ball bearing.

[0011] In a preferred embodiment, the outer side of the upper conveying pipe is provided with a groove for engaging with the ball bearings.

[0012] In a preferred embodiment, the upper end of the sealing device body is provided with an internal thread, and an O-ring is also fixedly installed inside the upper end of the sealing device body.

[0013] After adopting the above technical solution, the beneficial effects of this utility model are: 1. By setting up a sealing mechanism and using a handle to control the coordinated displacement of piston sealing ring one and piston sealing ring two, the downstream pipeline on one side can be precisely sealed, while the pipeline on the other side remains unobstructed. This allows the gas or fluid medium to be continuously transported through the backup channel when maintenance, repair or drilling is required on the sealed pipeline section, completely avoiding the inconvenience to users caused by the need to stop the flow in traditional operations.

[0014] 2. By setting up an installation mechanism, the simple action of "pushing the sliding sleeve - screwing in and inserting - releasing" can complete the fixation under the mechanical locking action of the spring rebound force and the ball, eliminating the multiple bolt tightening steps required by traditional flange connections and greatly improving construction efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional view of the overall structure of a gas pipeline uninterrupted supply and pressurized hole sealing device according to the present invention.

[0017] Figure 2 This is a partial front sectional view of a gas pipeline pressurized hole-sealing device according to the present invention.

[0018] Figure 3 This is a partial exploded view of a gas pipeline uninterrupted supply pressurized hole sealing device according to the present invention.

[0019] Figure 4 This is a partial sectional view of a gas pipeline pressurized hole-sealing device that does not interrupt gas supply according to this utility model.

[0020] In the diagram, 1-blocking device body, 2-blocking mechanism, 3-installation mechanism, 4-upper section conveying pipe, 5-lower section conveying pipe one, 6-lower section conveying pipe two; 21-Threaded rod, 22-Connecting plate one, 23-Piston seal ring one, 24-Main exhaust port, 25-Connecting plate two, 26-Piston seal ring two, 27-Secondary exhaust port; 31-through groove, 32-ball bearing, 33-sliding sleeve, 331-annular groove, 34-fixed ring, 35-spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 as well as Figure 2 As the first embodiment of this utility model: A gas pipeline uninterrupted pressurized opening and sealing device includes: a sealing device body 1, a sealing mechanism 2 is provided inside the sealing device body 1, and an installation mechanism 3 is provided at both the upper and lower ends of the sealing device body 1. An upper section delivery pipe 4 is fixedly connected to the upper end of the sealing device body 1 through the installation mechanism 3, and a lower section delivery pipe 5 and a lower section delivery pipe 6 are fixedly connected to the lower end of the sealing device body 1 through the installation mechanism 3. The sealing mechanism 2 includes a threaded rod 21, which is screwed into the inside of the sealing device body 1 by threads. A connecting plate 22 is sleeved on the outside of the threaded rod 21 through a bearing. A piston sealing ring 23 is fixedly installed on the connecting plate 22. A main air outlet port 24 is provided on the lower right side of the sealing device body 1. A connecting plate 25 is fixedly sleeved on the outer side of the left end of the threaded rod 21. A piston sealing ring 26 is fixedly installed on the connecting plate 25. A secondary air outlet port 27 is provided on the lower left side of the sealing device body 1.

[0023] By setting up the sealing mechanism 2 and using the handle to control the coordinated displacement of piston sealing ring 1 23 and piston sealing ring 26, the downstream pipeline on one side can be accurately sealed, while the pipeline on the other side remains unobstructed. This allows the gas or fluid medium to be continuously transported through the backup channel when maintenance, repair or drilling of the sealed pipeline section is required, completely avoiding the inconvenience to users caused by the need to stop the flow in traditional operations.

[0024] The right end of the threaded rod 21 extends to the outside of the sealing device body 1 and is fixedly connected to an operating handle.

[0025] Both piston seal ring 1 (23) and piston seal ring 2 (26) are made of modified polytetrafluoroethylene (PTFE) material.

[0026] Specifically, in the initial state, gas is transported through the upper section of the conveying pipe 4, the main outlet pipe 24, and the lower section of the conveying pipe 5. When it is necessary to open a hole in this pipe section, the threaded rod 21 is driven to move axially by rotating the operating handle. The threaded rod 21 will simultaneously drive the piston sealing ring 26 on the connecting plate 25 and the piston sealing ring 23 on the connecting plate 22 to move, thereby moving the piston sealing ring 23 to the main outlet pipe 24 to block the lower section of the conveying pipe 5. At this time, the lower section of the conveying pipe 6 remains unobstructed, thus achieving the goal of "uninterrupted transmission" while completely cutting off the downstream pipeline on one side.

[0027] Please see Figure 1 , Figure 3 as well as Figure 4 As a second embodiment of this utility model: The installation mechanism 3 includes a through groove 31, which is located at the upper end of the sealing device body 1. A ball bearing 32 is movably fitted inside the through groove 31. A sliding sleeve 33 is also slidably sleeved on the outer side of the upper end of the sealing device body 1. A fixing ring 34 is fixedly sleeved on the outer side of the upper end of the sealing device body 1. The fixing ring 34 and the sliding sleeve 33 are elastically connected by a spring 35. By setting the installation mechanism 3, the fixing can be completed under the spring force of the spring 35 and the mechanical locking action of the ball bearing 32 through a simple "push the sliding sleeve 33-screw into insertion-release" action. This eliminates the multiple bolt tightening steps required by traditional flange connections and greatly improves construction efficiency.

[0028] The through groove 31 is a trumpet-shaped structure with a diameter decreasing from the outside to the inside, and the minimum diameter of the through groove 31 is smaller than the maximum diameter of the ball 32.

[0029] The inner side of the sliding sleeve 33 is provided with an annular groove 331 that matches the ball 32.

[0030] The outer side of the upper conveying pipe 4 is provided with a groove that fits into the ball 32.

[0031] The upper end of the sealing device body 1 is provided with internal threads, and an O-ring is also fixedly installed inside the upper end of the sealing device body 1.

[0032] Based on the above embodiments, further, during installation, the sliding sleeve 33 is pushed and the spring 35 is compressed. Then, the ends of the upper section conveying pipe 4, the lower section conveying pipe 1 5, and the lower section conveying pipe 2 6 are screwed into the port of the sealing device body 1 through internal threads, and the O-ring is squeezed to achieve sealing. At the same time, the ball 32 is squeezed and falls into the annular arc groove 331 of the sliding sleeve 33. After the insertion is in place, the sliding sleeve 33 is released, and the rebound force of the spring 35 will push the sliding sleeve 33 to reset. The annular arc groove 331 on the inner side of the sliding sleeve 33 will squeeze the ball 32, so that it is partially embedded in the groove of the outer wall of the pipe, forming a firm mechanical lock. This ensures the sealing and stability of the connection under pressure conditions, while facilitating quick installation and disassembly.

[0033] 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, improvements, etc., 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. A gas pipeline live-lined sealing device, comprising: The sealing device body (1) is characterized in that a sealing mechanism (2) is provided inside the sealing device body (1), and an installation mechanism (3) is provided at both the upper and lower ends of the sealing device body (1). An upper section conveying pipe (4) is fixedly connected to the upper end of the sealing device body (1) through the installation mechanism (3), and a lower section conveying pipe (5) and a lower section conveying pipe (6) are fixedly connected to the lower end of the sealing device body (1) through the installation mechanism (3). The sealing mechanism (2) includes a threaded rod (21), which is screwed into the inside of the sealing device body (1) by a thread. A connecting plate (22) is sleeved on the outside of the threaded rod (21) through a bearing. A piston sealing ring (23) is fixedly installed on the connecting plate (22). A main air outlet port (24) is provided on the lower right side of the sealing device body (1). A connecting plate two (25) is fixedly sleeved on the outer side of the left end of the threaded rod (21), and a piston sealing ring two (26) is fixedly installed on the connecting plate two (25). A secondary air outlet port (27) is provided on the lower left side of the sealing device body (1).

2. The gas pipeline live-line sealing and plugging device as described in claim 1, characterized in that: The right end of the threaded rod (21) extends to the outside of the sealing device body (1) and is fixedly connected to an operating handle.

3. The gas pipeline live-lined sealing device as described in claim 1, characterized in that: Both piston seal ring one (23) and piston seal ring two (26) are made of modified polytetrafluoroethylene material.

4. The gas pipeline live-line sealing and plugging device as described in claim 1, characterized in that: The installation mechanism (3) includes a through groove (31), which is located at the upper end of the sealing device body (1). A ball bearing (32) is movably fitted inside the through groove (31). A sliding sleeve (33) is also slidably sleeved on the outer side of the upper end of the sealing device body (1). A fixing ring (34) is fixedly sleeved on the outer side of the upper end of the sealing device body (1). The fixing ring (34) and the sliding sleeve (33) are elastically connected by a spring (35).

5. A gas pipeline live-line sealing and plugging device as described in claim 4, characterized in that: The through groove (31) is a horn-shaped structure with a diameter decreasing from the outside to the inside, and the minimum diameter of the through groove (31) is smaller than the maximum diameter of the ball (32).

6. A gas pipeline live-line sealing and plugging device as described in claim 4, characterized in that: The inner side of the sliding sleeve (33) is provided with an annular groove (331) that matches the ball (32).

7. A gas pipeline live-line sealing and plugging device as described in claim 4, characterized in that: The outer side of the upper conveying pipe (4) is provided with a groove that fits into the ball (32).

8. A gas pipeline live-line sealing and plugging device as described in claim 4, characterized in that: The upper end of the sealing device body (1) is provided with an internal thread, and an O-ring is also fixedly installed inside the upper end of the sealing device body (1).

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