Combustible gas conveying pipeline with anti-explosion performance

Abstract

The utility model discloses a combustible gas delivery pipeline with explosion-proof performance, which comprises a pipeline body, two ends of the outer wall of the pipeline body are fixedly connected with connecting rings, two groups of filling pipes are symmetrically arranged in the pipeline body, and each group of filling pipes comprises a metal pipe and a foam metal pipe, the outer wall of the metal pipe and the outer wall of the foam metal pipe are fixedly connected with fixing rings, a plurality of holes are formed in the metal pipe, the foam metal pipe is fixed to the inner wall of the metal pipe, and the outer wall of the metal pipe is attached to the inner wall of the pipeline body. The foam metal has fluid penetrability and strong fire resistance, two groups of filling pipes consisting of the metal pipes and the foam metal pipes are symmetrically arranged in the pipeline body, flame propagation is prevented and explosion is blocked by absorbing heat energy, and a good explosion-proof effect is achieved on the pipeline body.

Description

Technical Field

[0001] This utility model relates to the field of combustible gas transportation pipeline technology, and in particular to a combustible gas transportation pipeline with explosion-proof performance. Background Technology

[0002] Combustible gas pipelines are industrial pipeline systems specifically designed for the safe transport of flammable gases (such as natural gas, hydrogen, and liquefied petroleum gas). Their core function is to transport the gas from the supply end (such as gas fields or chemical plants) to the user end (such as urban pipe networks or industrial facilities). Combustible gases are prone to explosion during transport due to factors such as pipeline leaks and proximity of ignition sources. Furthermore, excessively high pressure inside the pipeline can also lead to explosions. Therefore, these pipelines must possess explosion-proof capabilities. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this utility model is to provide a combustible gas conveying pipeline with explosion-proof performance. This is achieved by installing a removable and replaceable porous fireproof and explosion-proof filling pipe inside the pipeline.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a combustible gas conveying pipeline with explosion-proof performance, comprising a pipeline body, with connecting rings fixedly connected to both ends of the outer wall of the pipeline body, and two sets of filling tubes symmetrically arranged inside the pipeline body, each set of filling tubes including a metal tube and a foam metal tube, with fixing rings fixedly connected to the outer walls of the metal tube and the foam metal tube, the metal tube having multiple holes, the foam metal tube being fixed to the inner wall of the metal tube, the outer wall of the metal tube being in contact with the inner wall of the pipeline body, the connecting ring having a locking pin, the end of the locking pin passing through the connecting ring and slidingly mounted on the fixing ring, a spring being sleeved on the outer wall of the locking pin, one end of the spring being fixedly connected to the inside of the locking pin, and the other end of the spring being fixedly connected to the inside of the connecting ring.

[0005] Furthermore, a flame-retardant rubber tube is slidably connected inside the connecting ring, and the flame-retardant rubber tube is disposed at the outer end of the fixed ring.

[0006] Furthermore, a valve seat is fixedly connected inside the pipe body, a pressure sensor is installed on the upper surface of the valve seat, the monitoring end of the pressure sensor is located inside the valve seat, and a fixing plate is fixedly connected to the outer wall of the pressure sensor.

[0007] Furthermore, a push rod is slidably connected inside the fixing plate, and a locking block is slidably connected inside the fixing plate, with the push rod located on the outer wall of the locking block.

[0008] Furthermore, the valve seat has a groove inside, the locking block is slidably connected inside the groove, and the push rod is fitted with a spring, one end of which is fixedly connected inside the fixing plate.

[0009] Furthermore, a valve seat two is fixedly connected inside the pipe body, and a safety valve is installed on the outer wall of the valve seat two.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. By symmetrically installing two sets of filling tubes composed of metal pipes and foamed metal pipes inside the pipeline body, the fluid permeability and strong fire resistance of the foamed metal are utilized to absorb heat energy, prevent flame propagation, and isolate explosions, thus providing a good explosion-proof effect for the pipeline body. Simultaneously, by setting a locking pin to limit and fix the fixing ring inside the connecting ring, the fixing ring and filling tubes are confined and fixed inside the pipeline body, facilitating disassembly and replacement. Combined with flame-retardant hoses placed outside the fixing ring and inside the connecting ring, this not only provides flame-retardant and explosion-proof effects but also achieves a sealing effect when the two pipeline sections are combined.

[0012] 2. By setting a push rod and a locking block, pressing the push rod pushes the locking block to make it slide out of the slot, thereby allowing the fixing plate and pressure sensor to be disassembled for regular maintenance, which improves the detection efficiency of the pressure sensor and ensures the safety of the pipeline body during use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram showing the installation of the flame-retardant hose and connecting ring.

[0015] Figure 3 This is a schematic diagram of the internal structure of the pipeline body;

[0016] Figure 4 This is a schematic diagram of the filling tube structure;

[0017] Figure 5 This is a schematic diagram showing the installation of valve seat 1 and pressure sensor.

[0018] Legend:

[0019] 1. Pipe body; 2. Connecting ring; 3. Filler pipe; 301. Metal pipe; 302. Foam metal pipe; 4. Fixing ring; 5. Locking pin; 6. Spring 1; 7. Flame-retardant hose; 8. Valve seat 1; 9. Pressure sensor; 10. Fixing plate; 11. Push rod; 12. Locking block; 13. Locking groove; 14. Spring 2; 15. Valve seat 2; 16. Safety valve. Detailed Implementation

[0020] The technical solutions of the embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0021] Reference Figure 1-5 This embodiment provides a combustible gas conveying pipeline with explosion-proof performance, comprising a pipeline body 1. Connecting rings 2 are fixedly connected to both ends of the outer wall of the pipeline body 1. Two sets of filling tubes 3 are symmetrically arranged inside the pipeline body 1. Each set of filling tubes 3 includes a metal tube 301 and a foam metal tube 302. Fixing rings 4 are fixedly connected to the outer walls of the metal tube 301 and the foam metal tube 302. Multiple holes are opened on the metal tube 301. The foam metal tube 302 is fixed to the inner wall of the metal tube 301, with the outer wall of the metal tube 301 fitting against the inner wall of the pipeline body 1. The foam metal tube 302 is formed by bending commercially available foam metal sheets into a cylinder and then welding it to shape. The foam metal sheet can be one of nickel-chromium alloy foam metal sheet, iron-nickel-chromium alloy foam metal sheet, or nickel-molybdenum alloy foam metal sheet. Because foam metal has excellent fluid permeability and strong fire resistance, it can absorb heat energy to prevent flame propagation and isolate explosions, thus providing a good explosion-proof effect for the pipeline body 1. A locking pin 5 is provided on the connecting ring 2. The end of the locking pin 5 passes through the connecting ring 2 and slides on the fixing ring 4, thereby limiting and fixing the filling tube 3 inside the pipe body 1. A spring 6 is sleeved on the outer wall of the locking pin 5. One end of the spring 6 is fixedly connected to the inside of the locking pin 5, and the other end of the spring 6 is fixedly connected to the inside of the connecting ring 2. The spring 6 supports the locking pin 5 and also serves to automatically reset. A flame-retardant rubber tube 7 is slidably connected inside the connecting ring 2. The flame-retardant rubber tube 7 is located at the outer end of the fixing ring 4. The flame-retardant rubber tube 7 can play a flame-retardant role, preventing the flammable gas inside the pipe body 1 from being ignited and causing an explosion. At the same time, it can play a sealing role when the two pipe bodies 1 are connected and used.

[0022] A valve seat 8 is fixedly connected inside the pipe body 1. A pressure sensor 9 is installed on the upper surface of the valve seat 8. The detection end of the pressure sensor 9 is located inside the valve seat 8. The pressure sensor 9 detects the pressure inside the pipe body 1. A fixing plate 10 is fixedly connected to the outer wall of the pressure sensor 9. A push rod 11 is slidably connected inside the fixing plate 10. A locking block 12 is slidably connected inside the fixing plate 10. The push rod 11 is located on the outer wall of the locking block 12. A locking groove 13 is opened inside the valve seat 8. The locking block 12 is slidably connected inside the locking groove 13. The locking block 12 is limited and locked inside the locking groove 13, which facilitates the limiting and fixing of the valve seat 8 and the fixing plate 10. A spring 14 is fitted on the outer wall of the push rod 11. One end of the spring 14 is fixedly connected to the inside of the fixing plate 10. A valve seat 15 is fixedly connected inside the pipe body 1. A safety valve 16 is installed on the outer wall of the valve seat 15. The safety valve 16 is used in conjunction with the pressure sensor 9. When the pressure sensor 9 detects that the internal pressure of the pipe body 1 is too high, the safety valve 16 automatically opens and performs pressure relief to prevent the pipe body 1 from exploding due to excessive internal pressure. The safety valve 16 and the pressure sensor 9 are both existing products, and the linkage between them is also existing technology. They are not within the scope of protection of this utility model and will not be described in detail here.

[0023] Working principle: In use, two filling tubes 3 are symmetrically placed inside the pipe body 1, and the fixing ring 4 is limited and fixed inside the connecting ring 2 by the locking pin 5. Then, the flame-retardant rubber tube 7 is placed on the outer end of the fixing ring 4 and placed inside the connecting ring 2. Multiple pipe bodies 1 can be used in combination. Two pipe bodies 1 are aligned and placed to make the two connecting rings 2 combine and clamp the flame-retardant rubber tube 7 inside the two connecting rings 2. The flame-retardant rubber tube 7 seals the two connecting rings 2 and also serves the purpose of flame retardancy, preventing the flammable gas inside the pipe body 1 from being ignited. The filling tube 3 is placed inside the pipe body 1. The foam metal tube 302 has good fluid permeability and strong fire resistance. By absorbing heat energy, it prevents the spread of flame and isolates the explosion, thus providing an explosion-proof effect for the pipe body 1.

[0024] When the internal pressure of the pipe body 1 is too high, the pressure sensor 9 will detect the internal pressure of the pipe body 1 in a timely manner. In conjunction with the safety valve 16, when the internal pressure of the pipe body 1 exceeds the set pressure value, the safety valve 16 will automatically open to release pressure, preventing an explosion due to excessive pressure inside the pipe body 1. During later maintenance and repair, the push rod 11 can be pressed to slide the locking block 12 out of the slot 13, allowing the fixing plate 10 and pressure sensor 9 to be disassembled. This facilitates regular maintenance of the pressure sensor 9 and prevents long-term use from affecting the detection effect. When it is necessary to replace the filling tube 3, first ensure that there is no flammable gas inside the pipe body 1, separate each section of the pipe body 1, and then pull the locking pin 5 to slide it away from the fixing ring 4. Then, the fixing ring 4 can be used to slide the filling tube 3 out of the pipe body 1 for replacement.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 combustible gas conveying pipeline with explosion-proof performance, comprising a pipeline body (1), characterized in that: The outer walls of the pipe body (1) are fixedly connected to the two ends of the connecting ring (2). The pipe body (1) is symmetrically arranged with two sets of filling tubes (3). Each set of filling tubes (3) includes a metal tube (301) and a foam metal tube (302). The outer walls of the metal tube (301) and the foam metal tube (302) are fixedly connected to the fixing ring (4). The metal tube (301) has multiple holes. The foam metal tube (302) is fixed to the inner wall of the metal tube (301). The outer wall of the metal tube (301) is in contact with the inner wall of the pipe body (1). The connecting ring (2) is provided with a locking pin (5). The end of the locking pin (5) passes through the connecting ring (2) and is slidably installed on the fixing ring (4). The outer wall of the locking pin (5) is fitted with a spring (6). One end of the spring (6) is fixedly connected to the inside of the locking pin (5), and the other end of the spring (6) is fixedly connected to the inside of the connecting ring (2).

2. A combustible gas conveying pipeline with explosion-proof performance according to claim 1, characterized in that: The flame-retardant tube (7) is slidably connected inside the connecting ring (2), and the flame-retardant tube (7) is located at the outer end of the fixing ring (4).

3. A combustible gas conveying pipeline with explosion-proof performance according to claim 1, characterized in that: A valve seat (8) is fixedly connected inside the pipe body (1). A pressure sensor (9) is installed on the upper surface of the valve seat (8). The monitoring end of the pressure sensor (9) is located inside the valve seat (8). A fixing plate (10) is fixedly connected to the outer wall of the pressure sensor (9).

4. A combustible gas conveying pipeline with explosion-proof performance according to claim 3, characterized in that: The fixed plate (10) is slidably connected to a push rod (11), and the fixed plate (10) is slidably connected to a locking block (12). The push rod (11) is located on the outer wall of the locking block (12).

5. A combustible gas conveying pipeline with explosion-proof performance according to claim 4, characterized in that: The valve seat (8) has a slot (13) inside, the block (12) is slidably connected inside the slot (13), and the push rod (11) is fitted with a spring (14) on its outer wall. One end of the spring (14) is fixedly connected inside the fixing plate (10).

6. A combustible gas conveying pipeline with explosion-proof performance according to claim 1, characterized in that: A valve seat 2 (15) is fixedly connected inside the pipe body (1), and a safety valve (16) is installed on the outer wall of the valve seat 2 (15).

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