Shaft heat preservation system based on waste heat recovery
The technology of a waste heat recovery system and an insulation system is applied in the field of wellbore insulation, which can solve the problems of waste of wellbore insulation energy and ineffective use of waste energy, and achieve the effect of reducing costs.
Pending Publication Date: 2022-03-18
UNIV OF SCI & TECH OF CHINA
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Problems solved by technology
For this reason, an object of the present invention is to propose a wellbore heat preservation system based on waste heat recovery, which solves the problem of large waste of wellbore heat preservation energy in winter and the inability to effectively utilize waste energy
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[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0025] A wellbore heat preservation system based on waste heat recovery proposed by the present invention includes a waste heat recovery system and a wellbore heat preservation system;
[0026] The waste heat recovery system includes a thermal fluid and a heat exchanger, the thermal fluid flows out from the low-temperature side of the heat exchanger, and the thermal fluid includes two forms of gas and liquid;
[0027] The wellbore insulation system includes a cold fluid, a heat exchange device and an energy storage device, the cold fluid flows out from the high temperature side of the heat exchanger, and the heat exchange in the cold fluid is transferred to the energy...
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The invention discloses a shaft heat preservation system based on waste heat recovery. The shaft heat preservation system comprises a waste heat recovery system and a shaft heat preservation system body. The waste heat recovery system comprises a hot fluid and a heat exchanger, the hot fluid flows out of the low-temperature side of the heat exchanger, and the hot fluid comprises a gas form and a liquid form; the shaft heat preservation system comprises cold fluid, a heat exchange device and an energy storage device, the cold fluid flows out of the high-temperature side of a heat exchanger, heat in the cold fluid is exchanged and transferred into the energy storage device through the heat exchange device, and the cold fluid comprises a gas form and a liquid form; the cold fluid is one-way fluid or circulating fluid. Waste gas heat energy near the shaft and waste gas heat energy of the shaft can be fully utilized for heat preservation of the shaft, waste heat energy is fully utilized, the heat energy can be efficiently converted and stored in the energy storage system, and the heat preservation cost of the shaft is greatly reduced.
Description
technical field [0001] The invention relates to the technical field of wellbore heat preservation, in particular to a wellbore heat preservation system based on waste heat recovery. Background technique [0002] The well shaft freezes seriously in winter. The coal-fired boiler is used to heat the wellhead room’s radiator every winter for well shaft insulation. The air sent into the shaft is heated by the radiator to prevent the shaft from freezing. Due to the low thermal efficiency of the boiler and the large amount of air entering the shaft, The actual temperature of the air is difficult to reach the calculated temperature, and the insulation is not ideal. Moreover, the waste of energy is large, and the technology of recycling waste energy near the shaft cannot be effectively used, resulting in waste of industrial and mining enterprises and spontaneous combustion energy. Contents of the invention [0003] The present invention aims to solve one of the technical problems ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E21F1/00F28D15/02F28D20/00
CPCE21F1/00F28D15/02F28D20/00Y02E60/14Y02P80/10
Inventor 唐伟伟丁超杨立中
Owner UNIV OF SCI & TECH OF CHINA