Air supply channel sealing device, air supply channel and return air channel for subway vehicles

Abstract

The invention provides a subway vehicle air supply passage sealing device. An air supply passage comprises a first branch air passage communicating with a fresh air supply system and a first air outlet cavity communicating with the first branch air passage. A first sealing part surrounding the air supply passage is disposed at an air outlet of the first branch air passage or an air inlet of the first air outlet cavity, and a second sealing part surrounding the air supply passage is arranged at the air inlet of the first air outlet cavity or the air outlet of the first branch air passage. The first sealing part and the second sealing part are each made of a reversibly deformable elastic material. The first sealing part is provided with a convex part, the second sealing part is provided witha groove, and the convex part of the first sealing part abuts against the groove of the second sealing part so as to seal the joint of the first branch air passage and the first air outlet cavity. The invention further provides a subway vehicle air supply passage and return air supply passage. The subway vehicle air supply passage sealing device, air supply passage and return air supply passage realize a well sealing effect on the air supply passage, and the air outlet is arranged on a side top plate so as to avoid outlet wind from directly being blown to human heads and necks.

Description

technical field [0001] The invention relates to a sealing device for an air supply channel of a subway vehicle, an air supply channel and a return air channel, and belongs to the field of urban rail air conditioning systems. Background technique [0002] In the air supply channel of existing subway vehicles, the connection between the air channel and the air cavity is usually required. In order to ensure the sealing between the air channel and the air cavity, a sealing structure needs to be set between the two. The existing subway vehicle air channel The sealing structure is generally sealed with a sealing strip or a sealing ring. This kind of sealing method often fails to achieve a good sealing effect, especially when the air duct and the air chamber deviate, it is very easy to generate air leakage, which affects the air outlet effect, which in turn affects the passenger experience, especially during the peak period when the density of people is high , the impact is greate...

AI Technical Summary

Problems solved by technology

[0004] The problem to be solved by the present invention is to provide a subway vehicle air supply channel sealing device, a subway vehicle air supply channel and a subway vehicle return air channel for the problem that the sealing effect of the air supply channel of the existing subway vehicle is not good enough to affect the air supply effect

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