A sealing device used in vacuum pipeline traffic maintenance

Abstract

The invention discloses a sealing device applied to vacuum pipeline transportation maintenance. The sealing device applied to vacuum pipeline transportation maintenance comprises a maintenance vehiclecapable of driving the sealing device to walk axially along a vacuum pipeline, and a sealing head arranged on the maintenance vehicle and advancing along with the maintenance vehicle, wherein the sealing head comprises a fixed part and a movable part which are movably connected through an idler wheel-guide rail structure; the fixed part is a combination plate formed by a rectangle axially perpendicular to the vacuum pipeline and circular arc plates arranged at the two ends of the rectangle; peripheral clamping grooves are formed in the peripheral outer walls of the circular plates at the twoends of the fixed part; vacuum sealing elements are arranged in the peripheral clamping grooves; and the vacuum sealing elements are capable of circumferentially sealing the vacuum pipeline under thepressure effect of air pressure during expansion and are stored in the peripheral clamping grooves during shrinkage. The sealing device applied to vacuum pipeline transportation maintenance can realize the sealing at an arbitrary position of the interior of the pipeline, can destroy the vacuum environment of the interior of the pipeline as short as possible, can realize the sealing in a very shorttime rapidly, simply and effectively and is convenient to maintain.

Description

technical field [0001] The invention belongs to the technical field of boundary structure of vacuum environment for vacuum pipeline traffic, relates to a vacuum pipeline sealing system, and in particular to a sealing device used in vacuum pipeline traffic maintenance. Background technique [0002] Vacuum pipeline transportation has the advantages of ultra-high speed, safety, energy saving, environmental protection and not being affected by the weather, and has broad development prospects and space. When the speed of the vehicle running on the ground exceeds 400km / h, air resistance will exceed frictional resistance and become the main resistance. If the magnetic levitation technology is applied to the vacuum transportation system, the speed of the train running in neither mechanical friction resistance nor air resistance will be faster than that of any rail vehicle. [0003] The cost of obtaining, maintaining and maintaining the vacuum is very high, especially when the vacuu...

AI Technical Summary

Problems solved by technology

[0005] The maintenance of the vacuum pipeline also has the following three maintenance methods: one is to cut off the vacuum environment through the isolation door in the vacuum pipeline system, inflate the space to realize the conversion between the vacuum environment and the normal pressure environment, and then let the maintenance Workers enter it for maintenance, and then vacuumize it after the maintenance is completed; in this way, due to the large space for vacuum conversion, the vacuuming consumes a lot of energy, takes a long time, and costs high

The second is to invent a device similar to a spacesuit, allowing maintenance workers to complete maintenance in a vacuum without breaking the vacuum; however, it is very difficult to operate in a vacuum

The third is to use industrial robots for maintenance without isolation and sealing; however, the work done by robots is aimed at specific tasks, and intelligent industrial robots that can perform self-analysis and solutions according to different maintenance tasks have not yet been deeply studied in current technology.

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