Mining gas extraction insulating tube

Abstract

The utility model discloses a mining gas extraction insulating pipe, which comprises an insulating pipe body, flange roots, a rubber pad, a lap joint flange, a gas delivery pipe and a fixed flange, and is characterized in that the flange roots are arranged at two ends of the insulating pipe body, the lap joint flange is sleeved on the flange roots, the fixed flange is arranged at the end part of the gas delivery pipe, and the rubber pad is arranged on the rubber pad. A rubber pad is arranged between the flange root and the fixed flange, and the loose flange is fixedly connected with the fixed flange through a bolt. The insulating pipe body is made of insulating improved polyethylene or polyvinyl chloride materials, when the gas conveying pipeline generates static electricity, the insulating pipe body blocks transmission of the static electricity, the flange roots at the two ends of the insulating pipe body are sleeved with the lap joint flanges, and when the gas conveying pipeline is installed, the lap joint flanges are rotated to be aligned with the fixed flanges on the gas conveying pipeline, so that the gas conveying pipeline is installed. When the movable sleeve flange needs to be disassembled, cleaned and checked, only the bolt needs to be disassembled, and the movable sleeve flange is rotated, so that the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of mining gas transportation pipe fittings, in particular to a mining gas extraction insulating pipe. Background Art

[0002] In the prior art, when the coal mining industry uses gas pipelines underground, fixed flanges are installed at both ends of the pipe body of the gas pipeline, and rubber pads are set between the two fixed flanges. After the flange at one end is rotated to connect with the flange at the other end, the pipe body is tightly connected together with bolts or studs. However, since the gas pipeline is made of metal and the pipeline is long, the static electricity generated cannot be dispersed, and the static electricity gathered at the terminal is easy to cause a gas explosion.

[0003] For this purpose, we provide an insulating pipe for mining gas extraction that blocks static electricity transmission and avoids gas explosion. Utility Model Content

[0004] The purpose of the utility model is to provide an insulating pipe for mining gas extraction to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an insulating pipe for mine gas extraction, comprising an insulating pipe body, a flange root, a rubber gasket, a slip-on flange, a gas delivery pipe and a fixed flange, characterized in that: flange roots are provided at both ends of the insulating pipe body, a slip-on flange is provided on the flange root, a fixed flange is provided at the end of the gas delivery pipe, a rubber gasket is provided between the flange root and the fixed flange, and the slip-on flange and the fixed flange are fixedly connected by bolts.

[0006] The gas delivery pipe comprises a front-end gas delivery pipe and a rear-end gas delivery pipe, and a grounding wire is arranged on the front-end gas delivery pipe.

[0007] The insulating tube body is made of insulating modified polyethylene or polyvinyl chloride.

[0008] The insulating tube body and the flange root are connected by hot melting or socket connection.

[0009] The wall thickness of the insulating tube body is 5 mm to 40 mm.

[0010] The insulating tube body has a length of 300 to 8000 mm and a diameter of 50 to 1500 mm.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) The insulating pipe body is made of insulated modified polyethylene or polyvinyl chloride. When static electricity is generated in the gas pipeline, the insulating pipe body blocks the transmission of static electricity. A grounding wire is provided at the front end of the gas pipeline to conduct the generated static electricity underground, thus avoiding the problem of gas explosion caused by the static electricity generated in the gas pipeline being unable to disperse and accumulating at the terminal;

[0013] (2) The flange roots at both ends of the insulating tube body are provided with slip-on flanges. When the insulating tube body is connected to the gas delivery pipeline, it is only necessary to rotate the slip-on flange to align it with the fixed flange on the gas delivery pipeline and then fix the connection with bolts. When it needs to be disassembled for cleaning and inspection, it is only necessary to remove the bolts and rotate the slip-on flange, which improves work efficiency.

[0014] (3) The insulating tube body can be customized with a length of 300 to 8000 mm and a diameter of 50 to 1500 mm according to the site environment, pipeline distance, medium flow, and working pressure to meet the needs of different customers. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the hot-melt connection structure between the insulating tube body and the flange root of the utility model;

[0016] Figure 2 This is a schematic diagram of the hot melt connection installation structure of the embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the socket-and-spigot connection structure between the insulating tube body and the flange root of the utility model;

[0018] Figure 4 It is a schematic diagram of the socket-and-spigot connection installation structure of an embodiment of the utility model.

[0019] In the figure: insulating tube body 1, flange root 2, rubber gasket 3, slip-on flange 4, gas delivery pipe 5, front end gas delivery pipe 5-1, rear end gas delivery pipe 5-2, fixed flange 6, grounding wire 7. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4The utility model provides an embodiment: an insulating pipe for mining gas extraction, comprising an insulating pipe body 1, a flange root 2, a rubber pad 3, a slip-on flange 4, a gas conveying pipe 5 and a fixed flange 6, characterized in that: flange roots 2 are provided at both ends of the insulating pipe body 1, a slip-on flange 4 is sleeved on the flange root 2, a fixed flange 6 is provided at the end of the gas conveying pipe 5, a rubber pad 3 is provided between the flange root 2 and the fixed flange 6, and the slip-on flange 4 and the fixed flange 6 are fixedly connected by bolts.

[0022] The gas delivery pipe 5 includes a front gas delivery pipe 5 - 1 and a rear gas delivery pipe 5 - 2 , and a grounding wire 7 is provided on the front gas delivery pipe 5 - 1 .

[0023] The insulating tube body 1 is made of insulating modified polyethylene or polyvinyl chloride.

[0024] The insulating tube body 1 and the flange root 2 are hot-melted ( Figure 1-2 ) or socket ( Figure 3-4 ) method to connect.

[0025] The wall thickness of the insulating tube body 1 is 5 mm to 40 mm.

[0026] The insulating tube body 1 has a length of 300 to 8000 mm and a diameter of 50 to 1500 mm.

[0027] Working principle: When in use, insert the slip-on flange 4 into the flange root 2, connect the two ends of the insulating tube body 1 to the flange root 2 by hot melting or socket bonding, weld the fixed flange 6 to the gas delivery pipe 5, set the rubber pad 3 between the flange root 2 and the fixed flange 6, rotate the slip-on flange 4 to make the slip-on flange 4 correspond to the fixed flange 6, and then tighten and fix the slip-on flange 4 and the fixed flange 6 with bolts. When disassembly, cleaning or inspection is required, it is only necessary to remove the bolts and rotate the slip-on flange 4. There is no need to rotate the insulating tube body 1 or the gas delivery pipe 5, which reduces the labor intensity of workers and effectively improves work efficiency. Moreover, the insulating tube body 1 can be customized with a length of 300 to 8000 mm and a diameter of 50 to 1500 mm according to the site environment, pipeline distance, medium flow, and working pressure to meet the needs of different customers.

Claims

1. An insulating pipe for mining gas extraction, comprising an insulating pipe body (1), a flange root (2), a rubber gasket (3), a slip-on flange (4), a gas delivery pipe (5) and a fixed flange (6), characterized in that: The insulating tube body (1) is provided with flange roots (2) at both ends, a slip-on flange (4) is sleeved on the flange root (2), a fixed flange (6) is provided at the end of the gas delivery pipe (5), a rubber gasket (3) is provided between the flange root (2) and the fixed flange (6), and the slip-on flange (4) and the fixed flange (6) are fixedly connected by bolts.

2. The mine gas extraction insulating pipe according to claim 1, characterized in that: The gas delivery pipe (5) comprises a front gas delivery pipe (5-1) and a rear gas delivery pipe (5-2), and a grounding wire (7) is provided on the front gas delivery pipe (5-1).

3. The mine gas extraction insulating pipe according to claim 1, characterized in that: The insulating tube body (1) is made of insulating modified polyethylene or polyvinyl chloride.

4. The mine gas extraction insulating pipe according to claim 1, characterized in that: The insulating tube body (1) and the flange root (2) are connected by hot melting or socket connection.

5. The mine gas extraction insulating pipe according to claim 1, characterized in that: The wall thickness of the insulating tube body (1) is 5 mm to 40 mm.

6. The mine gas extraction insulating pipe according to claim 1, characterized in that: The insulating tube body (1) has a length of 300 to 8000 mm and a diameter of 50 to 1500 mm.

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