Downhole drainage device

Abstract

The invention relates to mining drainage equipment, in particular to a downhole drainage device. The downhole drainage device comprises a pneumatic diaphragm pump. The pneumatic diaphragm pump is provided with a liquid inlet, a compressed air inlet and a liquid outlet. The liquid inlet is connected with an underground water storage tank through a pipeline, the compressed air inlet is connected with an air compressor through a pipeline, the liquid outlet is connected with a drainage valve through a pipeline, and a connecting pipeline between the liquid outlet and the drainage valve is sequentially connected with the air compressor and the water storage tank through a bypass valve. According to the downhole drainage device, the pipeline where the bypass valve is located can adjust the drainage flow of the pneumatic diaphragm pump and meanwhile also provides a cooling channel for the air compressor, and normal operating and operation demands of the downhole drainage device are ensured; and by adopting the downhole drainage device, non-electric water pumping is achieved, the electricity leakage hidden danger of a water pump is excluded, the safety coefficient is increased obviously, and the labor intensity is reduced.

Description

technical field [0001] The invention relates to mine drainage equipment, in particular to an underground drainage device. Background technique [0002] In the process of underground mining of coal mines, due to the gushing of water in the formation, the infiltration of rainwater and river water, water sand filling and underground water supply of hydraulic coal mines, a large amount of water will be collected underground day and night. Mine water inflow is related to the hydrogeology of the mining area and local meteorological conditions, and the amount of water inflow varies in different seasons. In some large water mines, the mine water inflow can reach 17m per second 3 , even exceeding 20m per second 3 . In addition, during the coal mining process, due to the destruction of the stratum structure and the fracture of the rock formation, the mining area is connected with the water storage layer, and a water inrush accident occurs, and the water inflow will suddenly increas...

AI Technical Summary

Problems solved by technology

If these accumulated water cannot be discharged to the well in time, the production in the well may be hindered, and the safety of the well will not be guaranteed. In severe cases, major accidents will be caused, which will bring damage to the lives of the people and the property of the country. great threat

Therefore, underground drainage is very important, and when using general water pumps for drainage, there will be potential safety hazards such as electric leakage. It is necessary to conduct further research on the safety of underground drainage equipment

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