1results about How to "Prevent hole collapse" patented technology

This invention discloses an integrated device for in-situ power generation and extraction of coal seam gas and its usage method, relating to the field of coal seam gas control and utilization technology. An underground in-situ installation mechanism is used for anchoring coal seam boreholes and includes a gas storage chamber. A gas pretreatment mechanism is located inside, performing multi-stage purification of the raw gas entering the storage chamber. An outlet pipe connects to the storage chamber. A first negative pressure generating mechanism is detachably connected to the outlet pipe, generating negative pressure in the storage chamber in a first operating mode. A mechanical extraction mechanism can replace the first negative pressure generating mechanism, switching to a second operating mode. A bidirectional electrochemical energy conversion mechanism is connected to the underground in-situ installation mechanism and the storage chamber; in the first operating mode, it generates electricity using high-concentration gas, and in the second operating mode, it produces methane using electrical energy. An integrated control system is electrically connected to each mechanism, coordinating operation according to a preset program or remote commands to achieve switching between the two operating modes and stable operation. This invention enables the coordinated operation of in-situ collection, power generation, and extraction of coal seam gas.