The invention discloses a
coalbed methane well automatic drainage gas
recovery device, the structure of which comprises a gas well main body, a water outlet
pipe, a rock formation, an automatic drainage mechanism, a
coal seam, a
coalbed methane discharge pipe, and a
water pipe outlet. The gas well main body penetrates through the rock formation and is connected to the bottom
coal seam , the water outlet
pipe runs through the inside of the main body of the gas well, the outlet of the
water pipe is arranged on the top of the water outlet pipe, and is fixedly connected by a connector, the
coal seam is arranged below the rock layer, and the
coalbed methane discharge pipe is arranged above the main body of the gas well, and passed through Bolts are fixed, and the automatic drainage mechanism is composed of a waterproof protective case, a water inlet mechanism, a transmission mechanism, a circuit closing device, and a drainage pump. The waterproof protective case is welded to the side of the drainage pump. The gas device can accurately detect whether there is
water seepage at the bottom of the coalbed
methane well, and automatically start the drainage pump to drain water, avoiding
water flooding and damage caused by untimely detection of drainage, effectively ensuring the normal operation of the coalbed
methane well, and helping to increase production.