Automatic air curtain spraying switching control device for refuge chambers

Abstract

The invention relates to an automatic control device, in particular to an automatic air curtain spraying switching control device for refuge chambers, and solves the technical problem to provide an automatic air curtain spraying switching control device which is simple in structure and convenient to use and can automatically switch air supply pipelines. According to the technical scheme, a mine air pressurizing air inlet pipe and a compressed air inlet pipe are connected to a pneumatic three-way ball valve, the mine air pressurizing air inlet pipe is communicated with a shuttle valve through a first pipeline, the compressed air inlet pipe is communicated with the shuttle valve through a second pipeline, the first pipeline is communicated with a two-position five-way air control valve through a third pipeline, an air outlet end of the shuttle valve is communicated with an air inlet end of the two-position five-way air control valve, an air outlet of the two-position five-way air control valve is respectively communicated with an air inlet and an air outlet of a rotary cylinder, and a piston rod of the rotary cylinder is connected with a control rod of the pneumatic three-way ball valve. The automatic air curtain spraying switching control device is mainly used for automatic switching of air curtain spraying devices of the refuge chambers.

Description

technical field [0001] The invention relates to an automatic control device, in particular to an automatic switching control device for air curtain spraying in a refuge chamber. Background technique [0002] The mine refuge chamber is a major scientific and technological support plan during the "Eleventh Five-Year Plan" period of the country. It is a key technology that focuses on the emergency rescue of major disasters in mines. Among them, the air curtain sprinkler system works stably and reliably, and is easy to operate. It is of great significance to save the lives of mine workers to the greatest extent; improving the automation and ease of operation of the air curtain sprinkler system is an important topic. Therefore, it is very necessary to provide a reliable automatic pneumatic switching device for the air curtain sprinkler system in the refuge chamber. The switching device between the mine pressurized air and the compressed air bottle must be easy to operate and rel...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the pneumatic switching devices for mine pressure air and compressed air supply in the air curtain spray system of the refuge chamber are manually switched, which is cumbersome to operate, prone to misoperation, and delays the time for escape personnel to enter the refuge chamber, which is not very good To maintain a normal gas environment in the chamber, manual pneumatic switching devices have many disadvantages

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