Temperature-difference power generation system

Abstract

The invention discloses a temperature-difference power generation system, which comprises a temperature-difference generator, a hot pump device, a first heat exchange pool and a second heat exchange pool, wherein hot flowing medium flowing out from a hot source flows through the hot end of the temperature-difference generator via the first heat exchange pool; cold flowing medium flowing out from the second heat exchange pool flows through the cold end of the temperature-difference generator to flow back to the second heat exchange pool; a condenser of the hot pump device is arranged in the first heat exchange pool; heat is released to the flowing medium flowing through the first heat exchange pool; and an evaporator of the hot pump device is arranged in the second heat exchange pool to adsorb heat of the flowing medium in the second heat exchange pool. Because the hot pump technology is utilized, the medium on the cold end of the temperature-difference generator is kept at the low-temperature state, and therefore the temperature-difference generator can be applied to occasions which do not need an external cold source. In addition, energy released from the cold end of the temperature-difference generator is recovered and utilized by the hot pump. After certain energy is supplemented, the hot pump is utilized on the hot end of the temperature-difference generator for generating power, and a purpose of reducing thermal discharge is achieved.

Description

technical field [0001] The invention relates to energy-saving and emission-reduction technologies, in particular to a system for recovering waste heat, reducing heat discharge to the environment, and enabling it to output electric energy. Background technique [0002] Although in recent years, with the increasingly prominent energy and environmental crisis and the successful development of a batch of high-performance thermoelectric conversion materials, the research of thermoelectric technology has become a hot spot again. The principle of semiconductor thermoelectric power generation is to combine two different types of thermoelectric conversion materials N and P, and place one end in a high temperature state, and when the other end is opened and given a low temperature, due to the strong thermal excitation at the high temperature end, holes and The electron concentration is also higher than that at the low-temperature end. Driven by this carrier concentration gradient, hol...

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Problems solved by technology

[0005] Therefore, the thermoelectric generator power generation method in the prior art has limited application occasions, and needs to continuously replenish the cold flow medium from the outside world. It cannot be applied in occasions where the cold flow medium supplemented by the outside world cannot be received, that is, there is no external cold source.

For example, in some occasions where the thermoelectric generator needs to be moved, the thermoelectric generator cannot be connected with tap water or well water through the pipeline, so the thermoelectric generator cannot be used to generate electricity

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