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A method and device for forming a vacuum for pipeline traffic by pushing and exhausting piston type vehicles

A piston type and pipeline technology, applied in the direction of roads, tracks, tunnel systems, etc., can solve the problem of low exhaust efficiency, reduce costs and investment, improve economic benefits, and improve overall economic benefits.

Active Publication Date: 2019-09-03
BEIJING JIUZHOU ARTERY TUNNEL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above exhaust and vacuum method does not require the inside of the pipeline to be smooth, but the exhaust efficiency is not high

Method used

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  • A method and device for forming a vacuum for pipeline traffic by pushing and exhausting piston type vehicles
  • A method and device for forming a vacuum for pipeline traffic by pushing and exhausting piston type vehicles
  • A method and device for forming a vacuum for pipeline traffic by pushing and exhausting piston type vehicles

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Embodiment Construction

[0034] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but the present invention is not limited to the following examples.

[0035] Such as figure 1 , figure 2 As shown, the inner wall of the pipe must be smooth, the pipe wall is thin, 1~8mm, and it is made of non-magnetic material. The cross-section of the pipe is a regular circle, and it can also be an ellipse or other shapes without edges and corners. The longitudinal direction of the pipe must be continuous and smooth to ensure that the piston vehicle body can move forward smoothly without air leakage to the rear.

[0036]Piston-type vehicles are provided with pistons at the front end and rear end, and the piston ring a around the piston is made of rubber material, or other materials with elasticity and good sealing effect. Piston ring a also can adopt as the magnetic sealing strip that common refrigerator door seals. The piston ring a is ...

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Abstract

The invention discloses a pipeline transportation vacuum forming method adopting piston-type vehicle push and press air exhaust and a pipeline transportation vacuum forming device adopting piston-type vehicle push and press air exhaust. The pipeline transportation vacuum forming method comprises the following specific steps that (1) a piston-type vehicle a and a piston-type vehicle b enter air brake stations correspondingly; (2) inner side isolation doors of the air brake stations are closed, a transportation pipeline between the air brake stations forms a closed pipeline; (3) piston rings on the piston-type vehicles are adjusted to seal the piston-type vehicles and the pipeline; (4) the piston-type vehicle a and the piston-type vehicle b travel opposite to each other, so that air is discharged from air exhaust valves; (5) when the piston-type vehicle a and the piston-type vehicle b operate to the middle of the pipeline, the exhaust valves are closed, and the air exhaust process is completed; and (6) the piston-type vehicle a and the piston-type vehicle b travel back to the starting points, namely the air brake station A and the air brake station B of the piston-type vehicle a and the piston-type vehicle b. The pipeline transportation vacuum forming device comprises the pipeline, the piston-type vehicles, pistons, auxiliary pistons, longitudinal beams, connecting rods, magnetic caterpillar bands, driving wheel air exhaust valves and air exhaust devices. According to the pipeline transportation vacuum forming method and device adopting piston-type vehicle push and press air exhaust, pipeline transportation vacuumizing efficiency can be improved, and the construction and operating cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of vacuum pipeline transportation, and in particular relates to a method and a device for forming a vacuum for pipeline transportation by pushing and exhausting piston type vehicles. Background technique [0002] Vacuum pipeline transportation is a future transportation system that is in the research and development stage. Before the system runs, the air in the pipeline must be exhausted to establish a vacuum environment to ensure that the vacuum in the pipeline is within the specified low pressure range. After a period of operation, and under the action of various air leakage factors, the vacuum degree in the pipeline will decrease (the air pressure will increase), and the aerodynamic resistance of the vehicle will increase. In order to reduce the air pressure and restore the vacuum degree in the pipeline to the rated level, it is necessary to carry out vacuum maintenance work, that is, to supplement the va...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61B13/10
Inventor 张耀平李胜善
Owner BEIJING JIUZHOU ARTERY TUNNEL TECH CO LTD
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