Compressed-air self-help system

Abstract

The invention discloses a compressed-air self-help system, which comprises an air supply device, a compressed-air self-help device, a fast connector and a breathing mask, wherein the air supply device supplies air to the underground through an air supply pipeline; an underground air supply pipeline is connected with the input end of the compressed-air self-help device; and the output end of the compressed-air self-help device is provided with a pressure reducing valve, and is connected with a branch pipe where the breathing mask is positioned through the fast connector. The compressed-air self-help system can supply sanitary breathing air quickly to underground operators, has better silencing effect and filtering performance compared with the conventional compressed-air self-help device, and is simple in structure and low in manufacturing cost; most importantly, breathing ports can be quickly expanded according to the number of people using the system, and the system is suitable for emergency under the disaster condition.

Description

technical field [0001] The invention relates to the field of safety avoidance and lifesaving equipment for underground operations, in particular to a compressed air self-rescue system for underground operations. Background technique [0002] Our country is rich in mineral resources, but mining is difficult. During the mining process, safety accidents are often caused due to various reasons, such as collapse and gas outbursts, which often produce a large amount of toxic and harmful gases, threatening the safety of workers on the working face. , and because the mining tunnel is blocked or submerged, the miners cannot escape in time through the mining passage, and when such an accident occurs, external rescue often cannot play a role in a short time. Cataclysm, miners have little chance of survival. [0003] In addition, with the rapid development of my country's infrastructure construction, in order to alleviate the situation of urban traffic congestion, the application of un...

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Problems solved by technology

[0004] In order to solve this problem, in the prior art, the patent application number of 200720038759.4 provides a compressed air self-rescue device. The respirators connected by air pipes are equipped with manual air intake valves, pressure reducing valves and noise-absorbing filters on the branch pipes of each group of respirators. Although this device has high practical value, its structure is complicated and its manufacturing cost is high. Moreover, the user's operation convenience is not considered enough. On the other hand, the device limits the number of users. If the on-site personnel change, or a catastrophe happens when the number of on-site personnel increases, some personnel cannot use the self-rescue device to perform self-rescue.

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