Double-layer gas explosion-proof conveying pipeline

Abstract

The utility model discloses a double-layer fuel gas anti-explosion conveying pipeline which comprises a first double-layer anti-explosion pipe and a second double-layer anti-explosion pipe, the outer surface of the first double-layer anti-explosion pipe is fixedly connected with a first butt joint ring, and the outer surface of the second double-layer anti-explosion pipe is fixedly connected with a second butt joint ring. And the inner surface of the first double-layer explosion-proof pipe is fixedly connected with a first sealing ring. Through the arrangement of the fixing rod, when the first double-layer anti-explosion pipe and the second double-layer anti-explosion pipe need to be detached for maintenance, the fixing rod can not make contact with the positioning block any more after being rotated, so that fixing of the inserting block is relieved, and then the first double-layer anti-explosion pipe and the second double-layer anti-explosion pipe can be separated; after the first double-layer anti-explosion pipe and the second double-layer anti-explosion pipe are separated, the first double-layer anti-explosion pipe and the second double-layer anti-explosion pipe can be maintained, and the situation that the maintenance work of the first double-layer anti-explosion pipe and the maintenance work of the second double-layer anti-explosion pipe are affected due to rusting of bolts is avoided.

Description

Technical Field

[0001] The utility model relates to the field of pipelines, in particular to a double-layer gas explosion-proof transmission pipeline. Background Art

[0002] Explosion-proof pipes are specially designed pipes used to prevent explosion accidents or reduce the hazards of explosions. They are commonly used in chemical, petroleum, gas and other fields.

[0003] In the prior art, explosion-proof pipes are mostly used for gas transportation due to their good safety. In order to ensure the safe operation of gas explosion-proof pipes, regular maintenance of the explosion-proof pipes is also required. The joints between pipes are usually connected with bolts. After long-term contact with air, the bolts may oxidize and rust, which will increase the difficulty of removing the bolts, and may affect the maintenance of the pipeline. Therefore, a double-layer gas explosion-proof transmission pipeline is needed. Utility Model Content

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art and provide a double-layer gas explosion-proof transmission pipeline. By setting a fixing rod, when it is necessary to disassemble the first double-layer explosion-proof pipe and the second double-layer explosion-proof pipe for maintenance, the fixing rod can be rotated so that the fixing rod is no longer in contact with the positioning block, thereby releasing the fixation of the plug block, and then the first double-layer explosion-proof pipe and the second double-layer explosion-proof pipe can be separated. After the first double-layer explosion-proof pipe and the second double-layer explosion-proof pipe are separated, the first double-layer explosion-proof pipe and the second double-layer explosion-proof pipe can be maintained, and the maintenance work of the first double-layer explosion-proof pipe and the second double-layer explosion-proof pipe is avoided from being affected by rust of the bolts. By setting the first sealing ring and the second sealing ring, the sealing effect after the first double-layer explosion-proof pipe and the second double-layer explosion-proof pipe are connected can be improved, thereby preventing gas from leaking through the connection between the first double-layer explosion-proof pipe and the second double-layer explosion-proof pipe.

[0005] The utility model also provides the above-mentioned double-layer gas explosion-proof transmission pipeline, including a first double-layer explosion-proof pipe and a second double-layer explosion-proof pipe, the outer surface of the first double-layer explosion-proof pipe is fixedly connected with a first docking ring, the outer surface of the second double-layer explosion-proof pipe is fixedly connected with a second docking ring, the inner surface of the first double-layer explosion-proof pipe is fixedly connected with a first sealing ring, and the inner surface of the second double-layer explosion-proof pipe is fixedly connected with a second sealing ring.

[0006] A fixed structure, the fixed structure includes an insert block, an anti-slip block, a connecting rod, a fixing rod, a limit block and a positioning block, the side surface of the insert block is fixedly connected to the first docking ring, the outer surface of the anti-slip block is rotatably connected to the insert block, the left surface of the anti-slip block is fixedly connected to the connecting rod, the inner surface of the fixing rod is fixedly connected to the connecting rod, the end of the connecting rod away from the anti-slip block is fixedly connected to the limit block, the side surface of the positioning block is fixedly connected to the second docking ring, and the outer surface of the insert block is movably connected to the positioning block.

[0007] According to the double-layer gas explosion-proof transmission pipeline, the outer surface of the connecting rod is rotatably connected to the plug block, and the side surface of the fixing rod is in contact with the positioning block to fix the plug block.

[0008] According to the double-layer explosion-proof gas transmission pipeline, a positioning groove is provided on the positioning block, and the outer surface of the insert block is movably connected to the positioning groove, which facilitates installation and disassembly between the first double-layer explosion-proof pipe and the second double-layer explosion-proof pipe.

[0009] According to the double-layer gas explosion-proof transmission pipeline, a torsion spring is fixedly sleeved on the outer surface of the connecting rod, one end of the torsion spring is fixedly connected to the outer surface of the connecting rod, and the other end of the torsion spring is fixedly connected to the side inner wall of the insert block. There are multiple torsion springs distributed in a circular array, so that the fixing rod can quickly contact the positioning block.

[0010] According to the double-layer gas explosion-proof transmission pipeline, the first double-layer explosion-proof pipe and the second double-layer explosion-proof pipe are both multi-layer composite structures, and an aging-resistant layer and an impact-resistant layer are sequentially arranged from the outside to the inside, and the impact-resistant layer covers the lower surface of the aging-resistant layer.

[0011] According to the double-layer gas explosion-proof transmission pipeline, the material of the aging-resistant layer is polytetrafluoroethylene, and the material of the impact-resistant layer is polyurethane, which improves the anti-aging effect and impact resistance of the first double-layer explosion-proof pipe and the second double-layer explosion-proof pipe.

[0012] According to the double-layer gas explosion-proof transmission pipeline, the right surface of the first sealing ring is in contact with the second sealing ring, and the left surface of the first double-layer explosion-proof pipe is in contact with the second double-layer explosion-proof pipe. The first sealing ring and the second sealing ring can improve the sealing between the first double-layer explosion-proof pipe and the second double-layer explosion-proof pipe.

[0013] According to the double-layer gas explosion-proof transmission pipeline, the right surface of the second docking ring is in contact with the first docking ring, and the number of the fixed structures is multiple and distributed in a ring array.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is the overall structural diagram of a double-layer explosion-proof gas transmission pipeline of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the cross-section of the first double-layer explosion-proof pipe of a double-layer gas explosion-proof transmission pipeline of the utility model;

[0018] Figure 3 It is a structural schematic diagram of a cross-section of a plug block of a double-layer gas explosion-proof transmission pipeline of the utility model;

[0019] Figure 4 This is a structural schematic diagram of a fixed rod portion of a double-layer gas explosion-proof transmission pipeline of the utility model;

[0020] Figure 5 It is a structural schematic diagram of a cross-section of a first double-layer explosion-proof pipe of a double-layer gas explosion-proof transmission pipeline of the utility model.

[0021] Legend:

[0022] 1. The first double-layer explosion-proof tube; 2. The second double-layer explosion-proof tube; 3. The first docking ring; 4. The second docking ring; 5. The first sealing ring; 6. The second sealing ring; 7. The plug-in block; 8. The anti-dropping block; 9. The connecting rod; 10. The fixing rod; 11. The limiting block; 12. The positioning block; 13. The torsion spring; 14. The positioning groove; 15. The anti-aging layer; 16. The anti-impact layer; 17. The fixing structure. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] Reference Figure 1-5The utility model embodiment is a double-layer gas explosion-proof transmission pipeline, which includes a first double-layer explosion-proof pipe 1 and a second double-layer explosion-proof pipe 2, the outer surface of the first double-layer explosion-proof pipe 1 is fixedly connected with a first docking ring 3, the outer surface of the second double-layer explosion-proof pipe 2 is fixedly connected with a second docking ring 4, the inner surface of the first double-layer explosion-proof pipe 1 is fixedly connected with a first sealing ring 5, and the inner surface of the second double-layer explosion-proof pipe 2 is fixedly connected with a second sealing ring 6. The first double-layer explosion-proof pipe 1 and the second double-layer explosion-proof pipe 2 are both multi-layer composite structures, and are sequentially provided with an aging-resistant layer 15 and an impact-resistant layer 16 from the outside to the inside, and the impact-resistant layer 16 covers the lower surface of the aging-resistant layer 15. The material of the aging-resistant layer 15 is polytetrafluoroethylene, and the material of the impact-resistant layer 16 is polyurethane. The right surface of the first sealing ring 5 is in contact with the second sealing ring 6, the left surface of the first double-layer explosion-proof pipe 1 is in contact with the second double-layer explosion-proof pipe 2, and the right surface of the second docking ring 4 is in contact with the first docking ring 3.

[0025] The fixing structure 17 includes an insert block 7, an anti-slip block 8, a connecting rod 9, a fixing rod 10, a limiting block 11 and a positioning block 12. The side surface of the insert block 7 is fixedly connected to the first docking ring 3, the outer surface of the anti-slip block 8 is rotatably connected to the insert block 7, the left surface of the anti-slip block 8 is fixedly connected to the connecting rod 9, the inner surface of the fixing rod 10 is fixedly connected to the connecting rod 9, the end of the connecting rod 9 away from the anti-slip block 8 is fixedly connected to the limiting block 11, the side surface of the positioning block 12 is fixedly connected to the second docking ring 4, the outer surface of the insert block 7 is rotatably connected to the positioning block 12, and the outer surface of the insert block 7 is rotatably connected to the positioning block 12. The block 12 is movably connected, the outer surface of the connecting rod 9 is rotatably connected to the plug block 7, the side surface of the fixing rod 10 is in contact with the positioning block 12, a positioning groove 14 is provided on the positioning block 12, the outer surface of the plug block 7 is movably connected to the positioning groove 14, a torsion spring 13 is fixedly sleeved on the outer surface of the connecting rod 9, one end of the torsion spring 13 is fixedly connected to the outer surface of the connecting rod 9, and the other end of the torsion spring 13 is fixedly connected to the side inner wall of the plug block 7, the number of the torsion springs 13 is multiple and distributed in a circular array, and the number of the fixing structure 17 is multiple and distributed in a circular array.

[0026] Working principle: by rotating the fixing rod 10, the fixing rod 10 is rotated with the connecting rod 9 as the central axis and drives the anti-dropping block 8, the connecting rod 9 and the limit block 11 to rotate, so that the rotating connecting rod 9 can drive the torsion spring 13 on the inner wall of the plug block 7 to flip and stretch, so that the torsion spring 13 is in a flipped and stretched state. When the fixed rod 10 is no longer in contact with the positioning block 12 after rotation, the first double-layer explosion-proof tube 1 is pulled to separate the plug block 7 from the positioning block 12, thereby realizing the disassembly between the first double-layer explosion-proof tube 1 and the second double-layer explosion-proof tube 2, thereby facilitating the maintenance of the first double-layer explosion-proof tube 1 and the second double-layer explosion-proof tube 2, and then loosening the rotating fixing rod 10 so that the torsion spring 13 is no longer The torsion spring 13 is then rotated to rotate with the anti-dropping block 8, the connecting rod 9, the fixing rod 10 and the limiting block 11. When the maintenance of the first double-layer explosion-proof tube 1 and the second double-layer explosion-proof tube 2 is completed, the fixing rod 10 is first rotated to make the fixing rod 10 drive the anti-dropping block 8, the connecting rod 9 and the limiting block 11 to rotate while making the torsion spring 13 in a flipped and stretched state. When the fixed rod 10 after rotation does not affect the connection between the plug block 7 and the positioning block 12, the fixing rod 10 is inserted into the positioning groove 14. When the fixing rod 10 enters the positioning groove 14, the rotating fixing rod 10 is released. Due to the restriction of the positioning groove 14, the fixing rod 10 will not be detached from the positioning block 12, and the torsion spring 13 is Continue to be in the state of flipping and stretching. When the plug block 7 is inserted into the positioning groove 14, the first double-layer explosion-proof tube 1 is in contact with the second double-layer explosion-proof tube 2, the first sealing ring 5 is in contact with the second sealing ring 6, the first docking ring 3 is in contact with the second docking ring 4, and the fixing rod 10 can pass through the positioning block 12, so that the torsion spring 13 is no longer restricted by the positioning groove 14 and rebounds, so that the rebounding torsion spring 13 drives the anti-dropping block 8, the connecting rod 9, the fixing rod 10 and the limit block 11 to rotate. When the rotated fixing rod 10 contacts the positioning block 12, the plug block 7 is restricted, so that the plug block 7 will no longer be separated from the positioning groove 14, thereby completing the connection between the first double-layer explosion-proof tube 1 and the second double-layer explosion-proof tube 2. At the same time, under the action of the first sealing ring 5 and the second sealing ring 6, the sealing effect of the first double-layer explosion-proof tube 1 and the second double-layer explosion-proof tube 2 after being connected can be improved, and the gas is prevented from leaking from the connection position of the first double-layer explosion-proof tube 1 and the second double-layer explosion-proof tube 2. Under the action of the aging-resistant layer 15, the aging speed of the first double-layer explosion-proof tube 1 and the second double-layer explosion-proof tube 2 can be reduced, so that the first double-layer explosion-proof tube 1 and the second double-layer explosion-proof tube 2 can be used for a longer time, and under the action of the impact-resistant layer 16, the impact-resistant effect of the first double-layer explosion-proof tube 1 and the second double-layer explosion-proof tube 2 can be improved. When the first double-layer explosion-proof tube 1 and the second double-layer explosion-proof tube 2 are impacted by the outside world, they will not be damaged or broken.

[0027] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A double-layer gas explosion-proof transmission pipeline, characterized in that: include: A first double-layer explosion-proof tube (1) and a second double-layer explosion-proof tube (2), wherein the outer surface of the first double-layer explosion-proof tube (1) is fixedly connected with a first docking ring (3), the outer surface of the second double-layer explosion-proof tube (2) is fixedly connected with a second docking ring (4), the inner surface of the first double-layer explosion-proof tube (1) is fixedly connected with a first sealing ring (5), and the inner surface of the second double-layer explosion-proof tube (2) is fixedly connected with a second sealing ring (6); A fixed structure (17), the fixed structure (17) comprising an insert block (7), an anti-slip block (8), a connecting rod (9), a fixing rod (10), a limiting block (11) and a positioning block (12); the side surface of the insert block (7) is fixedly connected to the first docking ring (3); the outer surface of the anti-slip block (8) is rotatably connected to the insert block (7); the left surface of the anti-slip block (8) is fixedly connected to the connecting rod (9); the inner surface of the fixing rod (10) is fixedly connected to the connecting rod (9); one end of the connecting rod (9) away from the anti-slip block (8) is fixedly connected to the limiting block (11); the side surface of the positioning block (12) is fixedly connected to the second docking ring (4); and the outer surface of the insert block (7) is movably connected to the positioning block (12).

2. A double-layer gas explosion-proof transmission pipeline according to claim 1, characterized in that: The outer surface of the connecting rod (9) is rotatably connected to the insert block (7), and the side surface of the fixing rod (10) is in contact with the positioning block (12).

3. A double-layer gas explosion-proof transmission pipeline according to claim 1, characterized in that: The positioning block (12) is provided with a positioning groove (14), and the outer surface of the inserting block (7) is movably connected to the positioning groove (14).

4. A double-layer gas explosion-proof transmission pipeline according to claim 1, characterized in that: A torsion spring (13) is fixedly sleeved on the outer surface of the connecting rod (9), one end of the torsion spring (13) is fixedly connected to the outer surface of the connecting rod (9), and the other end of the torsion spring (13) is fixedly connected to the inner wall of the side of the plug block (7), and the torsion springs (13) are multiple in number and distributed in a circular array.

5. The double-layer explosion-proof gas transmission pipeline according to claim 1 is characterized in that: The first double-layer explosion-proof tube (1) and the second double-layer explosion-proof tube (2) are both multi-layer composite structures, and are provided with an anti-aging layer (15) and an anti-impact layer (16) in sequence from the outside to the inside, and the anti-impact layer (16) covers the lower surface of the anti-aging layer (15).

6. A double-layer explosion-proof gas transmission pipeline according to claim 5, characterized in that: The material of the aging-resistant layer (15) is polytetrafluoroethylene, and the material of the impact-resistant layer (16) is polyurethane.

7. The double-layer explosion-proof gas transmission pipeline according to claim 1 is characterized in that: The right surface of the first sealing ring (5) is in contact with the second sealing ring (6), and the left surface of the first double-layer explosion-proof tube (1) is in contact with the second double-layer explosion-proof tube (2).

8. The double-layer explosion-proof gas transmission pipeline according to claim 1 is characterized in that: The right surface of the second docking ring (4) is in contact with the first docking ring (3), and the number of the fixing structures (17) is multiple and distributed in a ring array.

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