High-fault-tolerance splicing connection structure of ventilation pipeline

Abstract

The invention provides a high-fault-tolerance splicing connection structure of a ventilation pipeline. The high-fault-tolerance splicing connection structure comprises a pipe body assembly, a companion flange, a sealing element and a flexible connection assembly, the pipe body assembly comprises a first pipe body and a second pipe body, the companion flange comprises a first flange and a second flange, the pipe body assembly and the companion flange are connected through a single-side flexible connection assembly or a double-side flexible connection assembly, the sealing element is an elastic body with a structure shaped like a Chinese character ' hui ', and sealing between the large end of the first flange and the large end of the second flange is achieved through compression deformation. Through the flexible connection component, the overall structure is compact, the weight is light, the installation error caused by accumulated deviation of the axis of a large-size ventilation pipeline is compensated, the ground installation efficiency is greatly improved, meanwhile, the problem that a traditional hard connection assembly cannot bear the severe upward orbit injection mechanical environment of a space station or other manned spacecrafts is solved.

Description

technical field [0001] The invention belongs to the technical field of ground construction of a ventilation system of an aerospace space station, and in particular relates to a highly fault-tolerant assembly connection structure of a ventilation pipeline. Background technique [0002] The ventilation system in the space cabin includes fan structure, purification structure, pipeline installation and other parts. When working, all parts work together to provide a certain air flow for the astronaut activity area and instrument area in the space cabin to meet the required ventilation requirements. The ventilation system in the space cabin needs to be processed in sections and installed as a whole before launch. Unlike common ground ventilation pipes, the pipelines in the cabin need to be able to resist launch vibration and meet the ground system test functions after installation. Moreover, in order to ensure the high energy efficiency of the ventilation in the on-orbit state cab...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of installation of ventilation pipes, mechanical strength and on-orbit airtightness of large-scale space cabins, the inventors have conducted intensive research and designed a pipe splicing with high fault tolerance, light weight, easy operation and reliable sealing The connection structure is used to solve the problems of cumbersome ground installation and high leakage rate of the ventilation pipeline in the narrow space in the cabin, integrate isolated components, improve the mechanical resistance, and at the same time realize low flow resistance in the air supply process, thus completing the present invention

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