Heat removal device

Abstract

The invention provides a heat removal device, and belongs to the field of geothermal resource development. The device comprises a shaft sleeve, a heat preservation pipe, a packer, an electric submersible pump, a water pumping pipe, an expansion wire and a ground control system. The first end of the shaft sleeve is located on an underground heat storage layer, the second end of the shaft sleeve is located on the ground, the heat preservation pipe is located in the shaft sleeve, the first end of the heat preservation pipe is connected with the first end of the shaft sleeve through the packer, and the second end of the heat preservation pipe is connected with the second end of the shaft sleeve; the metal material used by the heat preservation pipe is different from the metal material used by the shaft casing pipe. The electric submersible pump is located in the heat preservation pipe, the electric submersible pump is connected with the inner wall of the heat preservation pipe through the expansion wire, the electric submersible pump is connected with the first end of the water pumping pipe, and the second end of the water pumping pipe is located on the ground; and the electric submersible pump is electrically connected with the ground control system.

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