Natural gas pipeline sealing equipment

Abstract

The utility model relates to the technical field of pipelines, and discloses natural gas pipeline sealing equipment which comprises a first connecting pipe, a second connecting pipe is connected into the first connecting pipe in a sliding mode, a connecting assembly is arranged on the outer wall of the first connecting pipe, a sealing assembly is arranged in the first connecting pipe, and the sealing assembly comprises a second rubber ring. The outer wall of the second rubber ring is fixedly connected to the inner wall of the first connecting pipe, the second rubber ring is attached to the second connecting pipe, one end of the first connecting pipe is fixedly connected with a first fixing pipe, the outer wall of the first fixing pipe is fixedly connected with a plurality of first square clamping blocks and first fixing blocks, and the outer wall of the second connecting pipe is fixedly connected with a second fixing pipe. According to the sealing device, the first connecting pipe and the second connecting pipe are sealed through the second rubber ring, meanwhile, the first square clamping block and the second fixing block are clamped, the first fixing block and the second square clamping block are clamped, the position of the second connecting pipe is fixed, and the effect of sealing equipment is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline technical field especially relates to a natural gas pipeline sealing equipment. BACKGROUND

[0002] In the conveying and utilization process of natural gas, the natural gas pipeline sealing equipment plays a vital role. With the wide application of natural gas in the energy field, whether it is from the gas field exploitation site to the long-distance conveying pipeline, or the complex gas distribution network in the city, even to various industrial and residential users, reliable pipeline connection and sealing technology cannot be separated.

[0003] At present, the common natural gas pipeline sealing equipment mainly adopts the traditional sealing gasket and connection mode. For example, asbestos rubber gasket, polytetrafluoroethylene gasket and other sealing materials are used at the pipeline connection part, and the two pipeline sections are connected and the sealing gasket is compressed by the threaded connection mode, so as to realize sealing.

[0004] However, these existing natural gas pipeline sealing equipment has certain problems in the long-term use process. With the long-time operation of the equipment, the sealing structure of the pipeline connection part will be affected by various factors, such as the thermal expansion and cold contraction of the pipeline, the scouring of the medium, the mechanical vibration, etc. Taking the cooperation of the connecting pipe and the sealing rubber ring as an example, the close-fitting property between the connecting pipe and the rubber ring will be reduced. This will lead to the decline of the sealing property of the equipment, the increase of the natural gas leakage risk, not only causing energy waste, but also causing safety hazards, therefore, a natural gas pipeline sealing equipment is proposed to solve the above problems. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides a natural gas pipeline sealing equipment, which aims at improving the close-fitting property between the connecting pipe and the rubber ring after long-time use of the equipment, and the decline of the sealing property of the equipment.

[0006] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0007] A natural gas pipeline sealing equipment, comprising a connecting pipe one, the connecting pipe one is internally connected with a connecting pipe two in sliding mode, the connecting pipe one is externally provided with a connecting assembly, and the connecting pipe one is internally provided with a sealing assembly;

[0008] The sealing assembly includes a rubber ring two, the outer wall of the rubber ring two is fixedly connected to the inner wall of the connecting pipe one, the rubber ring two is attached to the connecting pipe two, one end of the connecting pipe one is fixedly connected with a fixed pipe one, the outer wall of the fixed pipe one is fixedly connected with a plurality of square clamping blocks one and a fixed block one, the outer wall of the connecting pipe two is fixedly connected with a fixed pipe two, the outer wall of the fixed pipe two is fixedly connected with a plurality of fixed blocks two and square clamping blocks two, the square clamping blocks two are clamped with the fixed block one, and the square clamping blocks one are clamped with the fixed block two;

[0009] As a further description of the above technical scheme:

[0010] The connecting assembly includes a semicircular clamping plate one and a semicircular clamping plate two, the semicircular clamping plate one and the semicircular clamping plate two are located on both sides of the connecting pipe one, the inner wall of the semicircular clamping plate one is fixedly connected with a plurality of limiting blocks, and the inner wall of each limiting block is fixedly connected with a rubber ring one;

[0011] As a further description of the above technical scheme:

[0012] The inner sides of the semicircular clamping plate one are fixedly connected with connecting shells, and the outer wall of each connecting shell is provided with a fixed shell, and the outer wall of the fixed shell is fixedly connected to the inner sides of the semicircular clamping plate two;

[0013] As a further description of the above technical scheme:

[0014] The inner wall of each connecting shell is fixedly connected with a fixed ring, and the inner side of each fixed ring is slidably connected with a connecting column;

[0015] As a further description of the above technical scheme:

[0016] One end of each connecting column is fixedly connected with a pressing disc, and the other end of each connecting column is fixedly connected with a circular truncated cone clamping block;

[0017] As a further description of the above technical scheme:

[0018] A plurality of clamping balls are slidably connected in the inner side of each fixed shell, and the clamping balls are attached to the circular truncated cone clamping block;

[0019] As a further description of the above technical scheme:

[0020] The inner wall of the fixed shell is provided with an inclined clamping plate, and the inclined clamping plate is clamped with the clamping ball;

[0021] As a further description of the above technical scheme:

[0022] Each outer wall of the connecting column is provided with a spring, one end of the spring is fixedly connected to the top of the fixed ring, and the other end of the spring is fixedly connected with a connecting ring, and the inner wall of the connecting ring is fixedly connected to the outer wall of the connecting column.

[0023] The utility model has the advantages of the following beneficial effects:

[0024] 1、 the utility model discloses, through rubber ring two between connecting pipe one and connecting pipe two carry out sealing treatment, utilize square block one and fixed block two and square block two and fixed block one and square block two between carding simultaneously, the fixed block of connecting pipe two position, ensure that connecting pipe two always with rubber ring two between full adhesion, reach to the equipment sealing effect, solved the equipment after long -time use, the close -fitting tightness of connecting pipe two and rubber ring two between reduces, leads to equipment sealing and drops the problem, enhanced the sealing effect of equipment.

[0025] 2、 the utility model discloses, through half circle clamping plate one and half circle clamping plate two extrude connecting pipe one, enhance the close -fitting tightness between connecting pipe one and connecting pipe two, utilize the carding between card ball and fixed shell inner wall simultaneously, realize the fixed between half circle clamping plate one and half circle clamping plate two, reach the effect of connecting pipe one and connecting pipe two between connection, solved the equipment after long -time use and produce a certain looseness easily, lead to the problem of unstable connection, enhanced the stability of connecting pipe one and connecting pipe two between connection. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a kind of natural gas pipeline sealing equipment's three-dimensional schematic diagram that the utility model proposes;

[0027] Figure 2 It is the card ball structure schematic diagram of a kind of natural gas pipeline sealing equipment that the utility model proposes;

[0028] Figure 3 It is the half circle clamping plate one structure schematic diagram of a kind of natural gas pipeline sealing equipment that the utility model proposes;

[0029] Figure 4 It is the rubber ring two structure schematic diagram of a kind of natural gas pipeline sealing equipment that the utility model proposes.

[0030] LEGEND:

[0031] 1, connecting pipe one; 2, connecting pipe two; 3, semicircle card plate one; 4, semicircle card plate two; 5, connecting column; 6, press plate; 7, connecting shell; 8, connecting ring; 9, spring; 10, fixed ring; 11, round table card block; 12, card ball; 13, fixed shell; 14, limiting block; 15, rubber ring one; 16, rubber ring two; 17, fixed pipe one; 18, square card block one; 19, fixed block one; 20, fixed block two; 21, square card block two; 22, fixed pipe two. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0033] Referring to Figure 1 and Figure 4 An embodiment provided by the utility model: a natural gas pipeline sealing device, connecting pipe one 1 is internally connected with connecting pipe two 2 in sliding mode, the outer wall of connecting pipe one 1 is provided with a connecting assembly, and the inside of connecting pipe one 1 is provided with a sealing assembly.

[0034] The sealing assembly comprises a rubber ring two 16, which is fixedly connected to the inner wall of the connecting pipe one 1, and is in close contact with the connecting pipe two 2. The rubber ring two 16 provides a tight sealing effect to prevent gas or liquid from leaking between the connecting pipe one 1 and the connecting pipe two 2. One end of the connecting pipe one 1 is fixedly connected with a fixed pipe one 17, the outer wall of which is fixedly connected with a plurality of square clamping blocks one 18 and a fixed block one 19. The square clamping blocks one 18 are clamped with the fixed block two 20 to ensure the stability of the connecting part. The fixed pipe one 17 serves to fix and support the connecting pipe one 1, keeping it from being deviated by external forces during the connection process. The outer wall of the connecting pipe two 2 is fixedly connected with a fixed pipe two 22, which is fixedly connected with a plurality of fixed blocks two 20 and square clamping blocks two 21. The square clamping blocks two 21 are clamped with the fixed block one 19, and the square clamping blocks one 18 are clamped with the fixed block two 20. The fixed pipe two 22 serves to provide support for the connecting pipe two 2, keeping it stable during operation. The fixed blocks two 20 and square clamping blocks two 21 effectively fix the position of the connecting pipe two 2 by clamping design, preventing it from loosening or deviating during use. The clamping between the square clamping blocks two 21 and the fixed block one 19 ensures the firmness of the connecting pipe two 2 during the connection process, and the clamping between the square clamping blocks one 18 and the fixed block two 20 further enhances the stability of the connection, ensuring the sealing performance and fixing effect between the connecting pipe one 1 and the connecting pipe two 2;

[0035] Specifically, during the sealing process of the device, the connecting pipe two 2 is first moved along its axis to the inner wall of the connecting pipe one 1 until it is pressed against and tightly fitted with the rubber ring two 16. During this process, the outer wall of the connecting pipe two 2 also presses against the rubber ring one 15, further ensuring a good sealing effect between the rubber ring one 15 and the connecting pipe one 1. In this way, the rubber ring two 16 and the rubber ring one 15 work together to form an effective seal between the connecting pipe one 1 and the connecting pipe two 2, preventing any leakage. As the connecting pipe two 2 moves, it also moves the fixed pipe two 22 to one side of the fixed pipe one 17. At this time, rotating the fixed pipe two 22 will push the square clamping blocks two 21 and the fixed blocks two 20 outward until they are in full contact with the outer wall of the fixed block one 19 and the inner wall of the square clamping blocks one 18. Through this action, the clamping relationship between the square clamping blocks one 18, the fixed block one 19, the square clamping blocks two 21, and the fixed block two 20 is established, ensuring the position of the connecting pipe two 2 in the device. The unique feature of this structural design is that the clamped fixing device can ensure that the connecting pipe two 2 always maintains sufficient contact with the outer wall of the rubber ring two 16, further enhancing the sealing performance and stability of the device.

[0036] Reference Figures 1-3The connecting assembly comprises a semicircular clamping plate 3 and a semicircular clamping plate 4, which are located on both sides of the connecting pipe 1 to ensure the close combination between the connecting pipe 1 and the connecting pipe 2. A plurality of limiting blocks 14 are fixedly connected to the inner wall of the semicircular clamping plate 3, and a rubber ring 15 is fixedly connected to the inner wall of each limiting block 14. The rubber ring 15 provides a sealing effect to prevent leakage between the connecting pipe 1 and the connecting pipe 2. The semicircular clamping plate 3 is fixedly connected to the connecting shell 7 on both sides, which provides stable support and guidance for the connecting column 5. The outer wall of each connecting shell 7 is provided with a fixed shell 13, which is fixedly connected to the inner wall of the semicircular clamping plate 4 on both sides, thereby fixing the position of the semicircular clamping plate 4 and enhancing the stability of the connection. The inner wall of each connecting shell 7 is fixedly connected with a fixed ring 10, which ensures the stability of the connecting column 5 inside and avoids slipping caused by external force. Each connecting column 5 is slidably connected to the inside of the fixed ring 10, which can maintain a certain degree of freedom when sliding to ensure the mobility of the entire assembly. One end of each connecting column 5 is fixedly connected with a pressing disc 6, which controls the movement of the connecting column 5 through the pressing force, thereby fixing the clamping block and the clamping ball 12. The other end of each connecting column 5 is fixedly connected with a circular truncated cone clamping block 11, which is in close contact with the clamping ball 12 to ensure the tightness of the connection. A plurality of clamping balls 12 are slidably connected in the fixed shell 13, which are in close contact with the circular truncated cone clamping block 11. The clamping ball 12 provides sufficient support force through the close contact with the circular truncated cone clamping block 11 to ensure the stable connection between the connecting pipe 1 and the connecting pipe 2. The inner wall of the fixed shell 13 is provided with an inclined clamping plate, which is in close contact with the clamping ball 12. The inclined clamping plate realizes more reliable fixation through the close contact with the clamping ball 12 to prevent the loosening of the connecting parts. The outer wall of each connecting column 5 is provided with a spring 9, which provides a restoring force to ensure that the connecting column 5 can rebound to the original position after completing the operation. One end of the spring 9 is fixedly connected to the top of the fixed ring 10, and the other end of the spring 9 is fixedly connected with a connecting ring 8, which is fixedly connected to the outer wall of the connecting column 5, thereby ensuring that the spring 9 can provide the necessary restoring force for the connecting column 5 to facilitate the smooth operation of the connecting and dismounting operation.

[0037] Specifically, during the connection of the two pipes, the operator first needs to press the pressing disc 6 downward so that it moves along the predetermined track. The movement of the pressing disc 6 drives one end of the connecting column 5, so that the circular platform clamping block 11 on the connecting column 5 moves out of the outer wall of the clamping ball 12, thereby providing more space for the clamping ball 12 to move flexibly. At this time, the connecting column 5 continues to move and pushes the spring 9 through the connecting ring 8, generating a certain extrusion force. Under the action of the spring 9, the semicircular clamping plate one 3 and the semicircular clamping plate two 4 are gradually moved to the two sides of the connecting pipe one 1, and with the further pushing of the connecting column 5, the connecting shell 7 also starts to move to the inner wall of the fixed shell 13. By the design of the semicircular clamping plate one 3 and the semicircular clamping plate two 4, they will effectively extrude the outer wall of the connecting pipe one 1, thereby greatly enhancing the close-fitting density between the connecting pipe one 1 and the connecting pipe two 2. This design ensures that the connection between the connecting pipe one 1 and the connecting pipe two 2 is firm and stable, effectively avoiding the problem of gas or liquid leakage due to loose connection. After the above steps are completed, the operator releases the pressing disc 6, and under the rebounding force of the spring 9, the circular platform clamping block 11 will move back to the outer wall of the clamping ball 12. At this time, the clamping ball 12 will be pushed to the inner wall of the fixed shell 13 and clamped with the fixed shell 13. The clamping action of the clamping ball 12 and the fixed shell 13 further fixes the connection between the semicircular clamping plate one 3 and the semicircular clamping plate two 4, thereby ensuring that the connection between the connecting pipe one 1 and the connecting pipe two 2 is more firm and reliable.

[0038] Working principle: During the sealing of the device, the connecting pipe two 2 is moved to the inner wall of the connecting pipe one 1 until it is extruded and fitted with the rubber ring two 16. In this process, the outer wall of the connecting pipe two 2 also extrudes and fits with the rubber ring one 15, and the rubber ring two 16 and the rubber ring one 15 realize the sealing of the connecting pipe one 1 and the connecting pipe two 2. The connecting pipe two 2 moves at the same time, driving the fixed pipe two 22 to move to one side of the fixed pipe one 17. Next, rotate the fixed pipe two 22 to push the square clamping block two 21 and the fixed block two 20 to move to the outer wall of the fixed block one 19 and the inner wall of the square clamping block one 18. By the clamping between the square clamping block one 18, the fixed block one 19 and the fixed block two 20, the square clamping block two 21, the position of the connecting pipe two 2 is fixed, so that the connecting pipe two 2 is always fully fitted with the outer wall of the rubber ring two 16, enhancing the sealing of the device;

[0039] During the two pipe connecting processes, the pressing disc 6 is pressed downward, the pressing disc 6 drives the circular table clamping block 11 at one end of the connecting column 5 to move out from the outer wall of the clamping ball 12 to provide the moving space for the clamping ball 12, the connecting column 5 drives the spring 9 to be extruded through the connecting ring 8 while moving, then the semicircular clamping plate one 3 and the semicircular clamping plate two 4 are moved to the two sides of the connecting pipe one 1, and the connecting shell 7 is moved to the inner wall of the fixed shell 13, the semicircular clamping plate one 3 and the semicircular clamping plate two 4 are extruded to the outer wall of the connecting pipe one 1, the close degree between the connecting pipe one 1 and the connecting pipe two 2 is enhanced, the connecting and fixing effect between the connecting pipe one 1 and the connecting pipe two 2 is achieved, then the pressing force of the pressing disc 6 is released, the circular table clamping block 11 is driven to move to the outer wall of the clamping ball 12 again by the rebounding force of the spring 9, the clamping ball 12 is driven to clamp with the inner wall of the fixed shell 13, the connecting and fixing between the semicircular clamping plate one 3 and the semicircular clamping plate two 4 is realized, and the stability of the connection between the connecting pipe one 1 and the connecting pipe two 2 is enhanced.

[0040] Finally, it should be noted that: the above only for the preferred embodiments of the utility model have described, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A natural gas pipeline sealing apparatus comprising a connecting pipe (1), characterized in that: The connecting pipe one (1) is internally and slidably connected with the connecting pipe two (2), the outer wall of the connecting pipe one (1) is provided with a connecting assembly, and the inner portion of the connecting pipe one (1) is provided with a sealing assembly; The sealing assembly comprises a rubber ring two (16), the outer wall of the rubber ring two (16) is fixedly connected to the inner wall of the connecting pipe one (1), the rubber ring two (16) is in close contact with the connecting pipe two (2), one end of the connecting pipe one (1) is fixedly connected with a fixed pipe one (17), the outer wall of the fixed pipe one (17) is fixedly connected with a plurality of square clamping blocks one (18) and a fixed block one (19), the outer wall of the connecting pipe two (2) is fixedly connected with a fixed pipe two (22), the outer wall of the fixed pipe two (22) is fixedly connected with a plurality of fixed blocks two (20) and square clamping blocks two (21), the square clamping blocks two (21) are clamped with the fixed block one (19), and the square clamping blocks one (18) are clamped with the fixed blocks two (20).

2. A natural gas pipeline sealing apparatus according to claim 1, wherein: The connecting assembly comprises a semicircular clamping plate one (3) and a semicircular clamping plate two (4), the semicircular clamping plate one (3) and the semicircular clamping plate two (4) are located on both sides of the connecting pipe one (1), and the inner wall of the semicircular clamping plate one (3) is fixedly connected with a plurality of limiting blocks (14), and the inner wall of each limiting block (14) is fixedly connected with a rubber ring one (15).

3. A natural gas pipeline sealing apparatus according to claim 2, wherein: The inner portion of the semicircular clamping plate one (3) is fixedly connected with a connecting shell (7), and the outer wall of each connecting shell (7) is provided with a fixed shell (13).

4. A natural gas pipeline sealing apparatus according to claim 3, wherein: The inner wall of each connecting shell (7) is fixedly connected with a fixed ring (10), and the inner portion of each fixed ring (10) is slidably connected with a connecting column (5).

5. A natural gas pipeline sealing apparatus according to claim 4, wherein: One end of each connecting column (5) is fixedly connected with a pressing disc (6), and the other end of each connecting column (5) is fixedly connected with a circular truncated cone clamping block (11).

6. A natural gas pipeline sealing apparatus according to claim 5, wherein: The inner portion of each fixed shell (13) is slidably connected with a plurality of clamping balls (12), and the clamping balls (12) are in close contact with the circular truncated cone clamping block (11).

7. A natural gas pipeline sealing apparatus according to claim 6, wherein: The inner wall of the fixed shell (13) is provided with an inclined clamping plate, and the inclined clamping plate is clamped with the clamping balls (12).

8. A natural gas pipeline sealing apparatus according to claim 7, wherein: The outer wall of each connecting column (5) is provided with a spring (9), one end of the spring (9) is fixedly connected to the top of the fixed ring (10), the other end of the spring (9) is fixedly connected with a connecting ring (8), and the inner wall of the connecting ring (8) is fixedly connected to the outer wall of the connecting column (5).

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