Device for preventing natural gas hydrate regeneration from blocking mining system and application method thereof

The invention provides a device for preventing natural gas hydrate regeneration from blocking an exploitation system and an application method thereof.The device comprises an unpowered exploitation device and a collecting device, a gas-water conveying pipeline is arranged between the unpowered exploitation device and the collecting device, and a heat conduction device is arranged in the unpowered exploitation device; the heat conduction device comprises a heat release section, a connection section and a heat absorption section which are sequentially arranged from top to bottom. The device is reasonable in design and simple in structure, energy of the stratum on the lower side of the reservoir is rapidly conducted to the pipe wall by utilizing the ground temperature gradient characteristic, continuous self heat transfer can be achieved, heat is conducted to the pipe wall, secondary generated hydrate is prevented from being attached to the pipe wall to cause blockage, external energy injection is not needed, an