Automatic drainage device for gas extraction and using method thereof

Abstract

The invention discloses an automatic drainage device for gas extraction and a using method thereof. The drainage device comprises a gas inlet pipe, a gas outlet pipe, a filter plate, a drainage tank, a liquid level sensor, a controller and an electromagnetic valve. The ends of the gas inlet pipe and the gas outlet pipe are connected to a gas extraction pipeline; a gas outlet of the gas inlet pipe is connected to a gas inlet of the drainage tank, and a gas inlet of the gas outlet pipe is connected to a gas outlet of the drainage tank; the filter plate is arranged at the gas outlet in the top of the drainage tank; and the liquid level sensor is arranged at the upper end in the drainage tank, the electromagnetic valve is arranged on the side wall of the drainage tank, and the height of the electromagnetic valve in the vertical direction is lower than that of the liquid level sensor. The method comprises the following steps that sundries and water in the drainage tank are gathered; gas enters the gas extraction pipeline through the gas outlet pipe; after the water level in the drainage tank rises to a first water level, water is drained out through the electromagnetic valve; and when the water level in the drainage tank drops to a second water level, the electromagnetic valve is closed. The automatic drainage device and the using method solve the problem that in the prior art, a negative-pressure automatic drainage device cannot achieve continuous automation.

Description

technical field [0001] The application belongs to the technical field of gas drainage, and in particular relates to an automatic water release device for gas drainage and a method for using the same. Background technique [0002] At present, in the process of coal mine production, it is necessary to carry out drainage work for gas. When the gas concentration exceeds the standard or encounters an open flame, an explosion will occur, endangering the lives of miners and causing damage to mines and production equipment. Gas is harmful, but at the same time it can be used. Therefore, the extraction of gas is an effective measure to reduce disasters and an effective method to utilize it. [0003] The coal mine gas drainage pipeline is the main artery of the gas drainage project, and the smoothness of the gas drainage pipeline is the key to the reliable operation of the coal mine drainage system. During the process of gas drainage, some accumulated water will be generated in the...

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Problems solved by technology

[0004] The embodiment of the present application solves the problem that the negative pressure automatic water release device in the prior art cannot realize continuous automation by providing an automatic water release device for gas drainage and its use method

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