A connection device for a natural gas transport pipeline

Abstract

The utility model relates to natural gas pipeline technical field, specifically disclose a kind of connecting device for natural gas transportation pipeline, including two groups natural gas pipeline body, two groups natural gas pipeline body between being provided with connecting mechanism, the connecting mechanism both ends are respectively worn in two groups natural gas pipeline body inside;The connecting mechanism includes connecting pipe, and the connecting pipe both ends are located in two groups natural gas pipeline body respectively, and fixing ring is provided on the connecting pipe, and the fixing ring is located between two groups natural gas pipeline body, and the connecting pipe both ends are provided with sealing assembly, and the sealing assembly is used to seal natural gas pipeline body with connecting pipe.Solve natural gas pipeline when connecting, staff needs to spend a lot of time to adjust the position of natural gas pipeline, to affect the efficiency of installing natural gas pipeline technical problem.

Description

Technical Field

[0001] This utility model relates to the field of natural gas pipeline technology, and specifically discloses a connection device for natural gas transportation pipelines. Background Technology

[0002] With the development of society, the use of natural gas has become ubiquitous in people's lives and is closely related to our food. When transporting natural gas, natural gas pipelines are used to transport natural gas, which is the way to transport large quantities of natural gas on land. Our application of natural gas pipelines is becoming more and more widespread.

[0003] For example, utility model patent application number 2021209728132 discloses a natural gas pipeline connector, including a first flange, a second flange, bolts, and a positioning cylinder. The first flange and the second flange are respectively used to fix at adjacent natural gas pipeline ports, and the first flange and the second flange are connected by the bolts. The positioning cylinder is fixed on the side of the first flange away from the second flange, and a positioning groove is provided on the positioning cylinder. A positioning post adapted to the positioning groove is fixed on the second flange, and the positioning post is used to be inserted into the positioning groove.

[0004] When connecting existing natural gas pipelines, flanges are used. When connecting natural gas pipelines with flanges, it is necessary to ensure that the two sets of flanges fit completely before fixing them with bolts. When aligning the two sets of flanges, the position and angle of one set of natural gas pipelines need to be constantly adjusted. Moreover, due to the weight of natural gas pipelines, it is inconvenient for workers to adjust them. When connecting two sets of natural gas pipelines, workers need to spend a lot of time adjusting the position of the natural gas pipelines, thus affecting the efficiency of natural gas pipeline installation. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a connection device for natural gas transportation pipelines, so as to solve the technical problem that when connecting natural gas pipelines, workers need to spend a lot of time adjusting the position of the natural gas pipelines, which affects the efficiency of natural gas pipeline installation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a connecting device for natural gas transportation pipelines, comprising two sets of natural gas pipeline bodies, with a connecting mechanism disposed between the two sets of natural gas pipeline bodies. The two ends of the connecting mechanism are respectively inserted into the two sets of natural gas pipeline bodies. The connecting mechanism includes a connecting pipe, with both ends located within the two sets of natural gas pipeline bodies. A fixing ring is disposed on the connecting pipe, located between the two sets of natural gas pipeline bodies. Sealing components are disposed at both ends of the connecting pipe, used to seal the natural gas pipeline body and the connecting pipe. The connecting mechanism enables the connection of two sets of natural gas pipeline bodies. During connection, it is only necessary to insert both ends of the connecting mechanism into the two sets of natural gas pipeline bodies and align them, saving time and improving the efficiency of natural gas pipeline installation.

[0007] Furthermore, the sealing assembly includes a flexible sleeve, and the connecting pipe is provided with several sets of limiting blocks. The flexible sleeve is located between the connecting pipe and the several sets of limiting blocks. A sealing fluid is disposed inside the flexible sleeve, and the flexible sleeve is tightly fitted to the inner wall of the natural gas pipeline body. The sealing assembly can seal the natural gas pipeline body and the connecting pipe. Simultaneously, the sealing assembly employs liquid sealing technology, which ensures a better sealing effect and guarantees that the natural gas pipeline body will not leak.

[0008] Furthermore, a three-way valve is provided on the fixing ring, with both ends of the three-way valve communicating with the flexible sleeve. A fixing groove is formed on the fixing ring, and one end of the three-way valve is located in the fixing groove. A stop block is fitted onto the fixing groove. The sealing fluid enters the flexible sleeve through the three-way valve, while preventing the sealing fluid from flowing out of the flexible sleeve, thereby ensuring that the sealing fluid is always present in the flexible sleeve.

[0009] Furthermore, the stop block is equipped with a handle, and both sides of the stop block are provided with first locking blocks, both sets of first locking blocks being locked onto the fixing ring. The locking blocks are used to protect the three-way valve, thereby ensuring that the three-way valve will not be easily damaged and improving the service life of the three-way valve.

[0010] Furthermore, a fastening mechanism is provided between the fixing ring and the natural gas pipeline body. The fastening mechanism includes a first movable block, on which a first mating block and a second locking block are fixedly connected. The second locking block is engaged with the fixing ring. A second mating block is provided between the first mating block and the fixing ring, contacting both the first mating block and the fixing ring. A second movable block is fixedly connected to the second mating block, which fits against the natural gas pipeline body. A rubber ring is engaged between the second movable block and the natural gas pipeline body. The fastening mechanism is used to fix the connecting mechanism to the natural gas pipeline body and simultaneously provide a secondary seal at the connection between the natural gas pipeline body and the connecting pipe, thus providing double protection for the connection between the natural gas pipeline body and the connecting pipe and preventing natural gas leakage.

[0011] Furthermore, several sets of threaded rods are fixedly connected to the first movable block, each set of threaded rods is fitted with a mating sleeve, and each set of mating sleeves is fixedly connected with a rotating block. Each set of rotating blocks contacts the second movable block. The threaded rods and the mating sleeves are connected by threads. By engaging the threaded rods and mating sleeves, the connecting mechanism can be fixed to the natural gas pipeline body, and the position of the connection between the connecting mechanism and the natural gas pipeline body can be adjusted. This facilitates the installation of the natural gas pipeline body by workers and improves the efficiency of the installation process.

[0012] The working principle and beneficial effects of this solution are as follows:

[0013] In use, the operator first inserts one end of the connecting mechanism into the natural gas pipeline body, then moves the other set of natural gas pipeline bodies to align with the connecting mechanism. Continue moving the natural gas pipeline bodies until the other end of the connecting mechanism is inserted into the natural gas pipeline body. Move one set of natural gas pipeline bodies until the two sets are aligned. Then, by moving the connecting mechanism and the fastening mechanism, the connecting mechanism is fixedly connected to the two sets of natural gas pipelines, completing the fixation and initial sealing of the connecting mechanism to the two sets of natural gas pipeline bodies. This allows for quick connection of the two sets of natural gas pipeline bodies, improving the efficiency of natural gas pipeline installation.

[0014] Workers use the handle to separate the stop block from the fixing ring, exposing the three-way valve. Then, they inject sealing fluid into the three-way valve. The sealing fluid enters the two sets of flexible sleeves through the three-way valve, making the flexible sleeves fit tightly against the inner wall of the natural gas pipeline body. This achieves the purpose of sealing between the natural gas pipeline body and the connecting pipe. At the same time, in conjunction with the fastening mechanism, it completes a double seal between the natural gas pipeline body and the connecting pipe, ensuring that there will be no leakage.

[0015] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment;

[0017] Figure 2 Exploded view of an embodiment;

[0018] Figure 3 This is an exploded view of the connecting mechanism in the embodiment;

[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 This is a cross-sectional schematic diagram of an embodiment;

[0021] Figure 6 for Figure 5 Enlarged diagram of point B in the middle.

[0022] The following components are labeled in the attached diagram: 1. Natural gas pipeline body; 2. Connecting pipe; 3. Fixing ring; 4. Limiting block; 5. Flexible sleeve; 6. Three-way valve; 7. Fixing groove; 8. Stop block; 9. Handle; 10. First locking block; 11. First locking groove; 12. First movable block; 13. Second movable block; 14. First mating block; 15. Second locking block; 16. Threaded rod; 17. Mating sleeve; 18. Rotating block; 19. First limiting groove; 20. Rubber ring; 21. Second limiting groove; 22. Second mating block; 23. Detailed Implementation

[0023] The following detailed description illustrates the specific implementation method:

[0024] Example

[0025] like Figures 1 to 6 As shown, a connection device for a natural gas transportation pipeline is disclosed.

[0026] The system includes two sets of natural gas pipeline bodies 1. A connecting mechanism is provided between the two adjacent sets of natural gas pipeline bodies 1. The connecting mechanism includes a connecting pipe 2. The two ends of the connecting pipe 2 are located inside the two sets of natural gas pipeline bodies 1 respectively. A fixing ring 3 is provided at the center of the connecting pipe 2. The fixing ring 3 is fixedly connected to the outer wall of the connecting pipe 2. Sealing components are provided at both ends of the connecting pipe 2. The sealing components include a flexible sleeve 5. Several sets of limiting blocks 4 are provided on the outer wall of the connecting pipe 2. The several sets of limiting blocks 4 are distributed in a ring on the connecting pipe 2. The flexible sleeve 5 is located between the connecting pipe 2 and the several sets of limiting blocks 4. The several sets of limiting blocks 4 do not contact the inner wall of the natural gas pipeline body 1. The flexible sleeve 5 is filled with sealing fluid and contacts the inner wall of the natural gas pipeline body 1.

[0027] A three-way valve 6 is provided between the two sets of flexible sleeves 5. Two ends of the three-way valve 6 are fixedly connected to the flexible sleeves 5 respectively. The three-way valve 6 is fixedly connected to the fixing ring 3. The fixing ring 3 has a fixing groove 7 with a conical cross section. One end of the three-way valve 6 is located in the fixing groove 7. A stop block 8 is installed on the fixing groove 7. A handle 9 is provided on the stop block 8. Two sets of first locking blocks 10 are fixedly connected to the stop block 8. The two side walls of the fixing groove 7 have first locking slots 11. The two sets of first locking blocks 10 are respectively locked in the two sets of first locking slots 11.

[0028] A fastening mechanism is provided between the fixed ring 3 and the natural gas pipeline body 1. The fastening mechanism includes a first movable block 12, on which a second locking block 15 is fixedly connected. A second locking groove 16 is provided on the fixed ring 3, and the second locking block 15 is fitted into the second locking groove 16. A first mating block 14 is fixedly connected to the first movable block 12. The first mating block 14 does not contact the fixed ring 3. A second mating block 23 is provided between the first mating block 14 and the fixed ring 3. The two sides of the second mating block 23 are respectively attached to the first mating block 14 and the fixed ring 3. A second movable block 13 is fixedly connected to the second mating block 23. The second movable block 13 is fitted to the natural gas pipeline body 1 and is fixedly connected to the natural gas pipeline body 1 by bolts. The second movable block 13 is provided with a first limiting groove 20 and the first locking block 10 is provided with a second limiting groove 22. Rubber rings 21 are fitted in the first limiting groove 20 and the second limiting groove 22. Several sets of threaded rods 17 are fixedly connected to the first movable block 12. Each set of threaded rods 17 is fitted with a mating sleeve 18. The threaded rods 17 and the mating sleeves 18 are threadedly connected. Each set of mating sleeves 18 is fixedly connected with a rotating block 19. Several sets of friction grooves are provided on the rotating block 19.

[0029] In practice

[0030] In use, the operator first inserts one end of the connecting mechanism into the natural gas pipeline body 1, making the second movable block 13 contact the natural gas pipeline body 1. Then, the operator moves the other set of natural gas pipeline bodies 1 to the connecting mechanism, and continues to move the natural gas pipeline body 1 until the other end of the connecting mechanism is inserted into the natural gas pipeline body 1. At this point, it is not necessary for the second movable block 13 on the other side to contact the natural gas pipeline body 1; simply align the two sets of natural gas pipeline bodies 1. Then, the operator moves the fixing ring 3, which drives the connecting mechanism and the two sets of fastening mechanisms to move the fixing ring 3 to the center of the two sets of natural gas pipeline bodies 1. Then, the operator rotates several sets of rotating blocks 19 located on the same side in sequence. The rotating blocks 19 drive the mating sleeve 18 to rotate on the threaded rod 17. The mating sleeve 18 moves relative to the first movable block 12. While the mating sleeve 18 moves, it pushes the second movable block 13 to move. When the second movable block 13 moves, it drives the second mating block 23 to move. The process continues until the second mating block 23 moves to contact the natural gas pipeline body 1. At this point, the rubber ring 21 inside the second mating block 23 is engaged in the second limiting groove 22, completing the seal between the natural gas pipeline body 1 and the second mating block 23. Then, the workers fix the second mating block 23 to the natural gas pipeline body 1 with bolts. Then, they rotate several sets of rotating blocks 19 located on the other side to make the corresponding second movable block 13 contact the natural gas pipeline body 1. Then, they fix the second movable block 13 to the natural gas pipeline body 1 with bolts. At this point, the connection mechanism is fixed and initially sealed with the two sets of natural gas pipeline bodies 1, which can quickly complete the connection of the two sets of natural gas pipeline bodies 1. When connecting the two sets of natural gas pipeline bodies 1, it is not necessary to ensure that the angles of the two sets of natural gas pipeline bodies 1 are aligned and that the two sets of natural gas pipeline bodies 1 are completely fitted. It is only necessary to ensure that the two sets of natural gas pipeline bodies 1 are aligned, which can reduce the time for connecting the two sets of natural gas pipeline bodies 1 and improve the efficiency of installing the natural gas pipeline bodies 1.

[0031] Then, the worker grasps handle 9 and pulls it upwards. Handle 9 moves stop 8 upwards, separating stop 8 from fixed groove 7. Simultaneously, it separates first locking block 10 from first locking groove 11. The worker then injects sealing fluid into three-way valve 6. The sealing fluid enters two sets of flexible sleeves 5 through three-way valve 6, filling the flexible sleeves 5 with sealing fluid. This ensures that the flexible sleeves 5 are tightly fitted to the inner wall of the natural gas pipeline body 1, thereby achieving the purpose of sealing between the natural gas pipeline body 1 and connecting pipe 2. This provides a double seal between the natural gas pipeline body 1 and connecting pipe 2, ensuring that there will be no leakage at the connection between the natural gas pipeline body 1 and connecting pipe 2 during natural gas transportation. After sealing is completed, the worker clamps handle 9 onto fixed groove 7 and first locking block 10 onto first locking groove 11 to protect three-way valve 6 and prevent damage to three-way valve 6, which could lead to leakage of sealing fluid from three-way valve 6.

[0032] The above description is merely an embodiment of this utility model, and common knowledge such as specific structures and characteristics in the solution is not described in detail here. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model, and these should also be considered within the protection scope of this utility model. These modifications and improvements will not affect the effectiveness of the implementation of this utility model or its practicality.

Claims

1. A connection device for a natural gas transportation pipeline, characterized in that: It includes two sets of natural gas pipeline bodies, and a connecting mechanism is provided between the two sets of natural gas pipeline bodies. The two ends of the connecting mechanism are respectively installed in the two sets of natural gas pipeline bodies. The connecting mechanism includes a connecting pipe with its two ends located within two sets of natural gas pipeline bodies. A fixing ring is provided on the connecting pipe, and the fixing ring is located between the two sets of natural gas pipeline bodies. A sealing component is provided at both ends of the connecting pipe, and the sealing component is used to seal the natural gas pipeline body and the connecting pipe.

2. A connection device for a natural gas transportation pipeline according to claim 1, characterized in that: The sealing assembly includes a flexible sleeve, and the connecting pipe is provided with a plurality of sets of limiting blocks, with the flexible sleeve located between the connecting pipe and the plurality of sets of limiting blocks; The flexible sleeve is filled with a sealing fluid, and the flexible sleeve is tightly fitted to the inner wall of the natural gas pipeline body.

3. A connection device for a natural gas transportation pipeline according to claim 2, characterized in that: The fixing ring is provided with a three-way valve, and two ends of the three-way valve are respectively connected to the flexible sleeve. The fixing ring is provided with a fixing groove, and one end of the three-way valve is located in the fixing groove. A stop block is installed on the fixing groove.

4. A connection device for a natural gas transportation pipeline according to claim 3, characterized in that: The block is provided with a handle, and a first locking block is provided on both sides of the block. Both sets of the first locking blocks are locked onto the fixing ring.

5. A connection device for a natural gas transportation pipeline according to claim 4, characterized in that: A fastening mechanism is provided between the fixed ring and the natural gas pipeline body. The fastening mechanism includes a first movable block, on which a first mating block and a second locking block are fixedly connected. The second locking block is locked onto the fixed ring. A second mating block is provided between the first mating block and the fixed ring. The second mating block is in contact with the first mating block and the fixed ring. A second movable block is fixedly connected to the second mating block. The second movable block is in contact with the natural gas pipeline body. A rubber ring is fitted between the second movable block and the natural gas pipeline body.

6. A connection device for a natural gas transportation pipeline according to claim 5, characterized in that: The first movable block is fixedly connected with several sets of threaded rods, each set of threaded rods is fitted with a mating sleeve, each set of mating sleeves is fixedly connected with a rotating block, and each set of rotating blocks is in contact with the second movable block. The threaded rod and the mating sleeve are connected by threads.

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