Gas control device

Abstract

The invention relates to a gas control device. The gas control device comprises two gas inlet pipes provided with gas inlet valves, and two gas outlet pipes provided with gas outlet valves. The gas control device is characterized in that the gas control device is further provided with a gas storage chamber, and a water drainage valve is arranged below the gas storage chamber. By arranging the gas storage chamber, it is ensured that gas pressure in a pipeline can be kept within the working pressure range, the working pressure standard can be met even when an air curtain spraying device is suddenly started, and no pressure loss phenomenon can be generated. Moisture condensed in the pipeline can be removed through the gas storage chamber, and corrosion to the whole pipeline caused when moisture can not be removed and is accumulated can not happen. Foreign matter which can possibly be generated in a gas way is eliminated, and the danger that air curtain spraying holes are blocked by the foreign matter is reduced. Impact of high-pressure gas on the pipeline is reduced, the service life of the pipeline is prolonged, the working pressure of high-pressure gas is stabilized, and normal work of an air curtain spraying system is ensured.

Description

technical field [0001] The invention relates to the field of mine hazard avoidance systems, in particular to the gas circuit system in the hazard avoidance system, and in particular to a gas control device. Background technique [0002] The air path of the risk avoidance system generally adopts a mine-used compressed air system and high-pressure gas cylinders. When the compressed air system is destroyed, the high-pressure gas cylinder will supply gas to the air path of the hazard avoidance system, and the main gas utility equipment in the hazard avoidance system is the air curtain spray device. After the gas enters the air curtain spray device, the toxic and harmful gas will be isolated from the hazard avoidance system through the air curtain spray device. [0003] The control method adopted by the traditional gas circuit control device is to open the valve in the control box when the high-pressure gas cylinder supplies gas to the air curtain spray system, and the gas from ...

AI Technical Summary

Problems solved by technology

[0004] First, the high-pressure gas is directly released from the high-pressure gas cylinder into the air curtain spray system, which will impact the pipeline and cause leakage hazards

[0005] Second, when the high-pressure gas is released, the temperature is low, which may cause a certain amount of moisture inside the pipeline, which will corrode the gas path. At the same time, part of the moisture will enter the air curtain spray system through the pipeline. The air outlets are very small, which may block the air outlets and affect the work of the air curtain sprinkler system

[0006] Third, when the gas control box is manually opened, there is a process of high-pressure gas from the gas cylinder to the air curtain spray system, which will cause the short-term air curtain spray system to fail to work normally, and the released gas cannot reach the specified pressure

[0007] Fourth, when the air curtain spray is working normally, the pipeline may be oscillated due to external force factors, resulting in unstable outlet pressure

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