Automatic high-efficiency water discharging device for coal-mine gas extraction pipe

Abstract

The invention discloses an automatic high-efficiency water discharging device for a coal-mine gas extraction pipe and belongs to the field of coal mine automation. The automatic high-efficiency water discharging device is used for automatically discharging water accumulated in the gas extraction pipe. The automatic high-efficiency water discharging device comprises a water discharging device cylinder assembly, an upper cover assembly and a flat floating ball assembly. The water discharging device cylinder assembly comprises a dual-acting pneumatic ball valve, a single-acting pneumatic ball valve, a cylinder and a static guide rod, and the flat floating ball assembly comprises a flat floating ball, a flat floating ball guide rod and a flat floating ball magnet. The automatic high-efficiency water discharging device has the advantages of being high in water discharging efficiency, simple in structure, stable in operation and capable of automatically being switched off when decompression happens, and can discharge water accumulated in the gas extraction pipe efficiently, safely, stably and automatically.

Description

technical field [0001] The invention belongs to the field of coal mine automation, and relates to a high-efficiency automatic water discharge device for a gas drainage pipeline, which is used for automatic discharge of water stored in the gas drainage pipeline. Background technique [0002] There is a large temperature difference at various points in the coal mine, so a large amount of condensed water will be formed in the pipeline of the gas drainage system. In addition, because the coal seam and the rock formation inevitably contain moisture, a large amount of borehole water will also be generated during the drilling process and enter the pipeline of the gas drainage system. Condensed water and borehole water existing in gas drainage pipelines affect the normal operation of the gas extraction system, increase the extraction resistance and reduce the extraction effect. Under the condition that the other working conditions remain unchanged, the increase of pipeline accumula...

AI Technical Summary

Problems solved by technology

This method mainly has three deficiencies: ① low water discharge efficiency

②Easy to block

If the water discharge efficiency is low, the flow rate of the water will be slow during the water discharge process, resulting in easy deposition of dregs in the water, and in serious cases, the water discharge port will be blocked and the water discharge device will fail

③ poor security

When the mechanical structure fails, the water inlet and the water outlet will be opened at the same time, and the drainage pipeline will be connected to the atmosphere, causing the drainage pipeline to lose pressure

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