Supercritical low-temperature air energy power generator

Abstract

The invention relates to a new solar energy thermal supercritical low-temperature air energy power generator which comprises a heat absorber, an expansion generator unit, a heat regenerator, a cooler, a booster pump, a refrigerator and pipeline accessories thereof and a detection and control device; and a nitrogen or mixed working medium is filled in a closed system. The working medium becomes high-pressure supercritical fluid through passing through the heat absorber, also becomes a working medium in the supercritical state through the work application and power generation of the expansion generator unit, is pressed into the heat regenerator by the booster pump for heat exchange through being condensed by the heat regenerator and the cooler and then is thermally absorbed by the heat absorber to form a closed cycle power generation system. The power generator also can be used for low-temperature heat source power generation in excess heat, waste heat, terrestrial heat and the like; and the working medium adopts carbon dioxide or mixed working medium. The supercritical low-temperature air energy power generator can generate cool air. With the adoption of the supercritical low-temperature air energy power generator, the working medium is condensed under the supercritical state, release a small quantity of heat and can circularly utilize the condensation heat. Therefore, the supercritical low-temperature air energy power generator has high thermoelectric efficiency, high energy conversion density, low unit power investment and low cost and uses less power during the cool air generation process. The supercritical low-temperature air energy power generator successfully breaks through the key technical difficulty of low thermal efficiency during the low-temperature solar energy thermal power generation.

Description

technical field [0001] The invention relates to a new energy power generation device, in particular to a supercritical low-temperature air energy power generation device. Background technique [0002] Most of the energy on the earth comes from the sun, no matter wind energy, water energy, biomass energy or fossil energy - coal, oil, natural gas, combustible ice. In today's increasingly tense energy environment, new renewable, green and clean power generation technologies are receiving increasing attention. Now, among the new energy sources, solar power generation technologies such as hydropower and wind power, as well as direct utilization technologies of solar power generation—photovoltaic cells and mirror surface concentrating power generation technologies are quite mature; hydropower development potential is not great; and wind power and sunlight are too scattered, making The direct power generation devices of wind power and sunlight occupy a large area, and the one-time...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages of high investment and low thermal efficiency of existing heat pump low-temperature thermal power generation devices, the present invention provides a supercritical low-temperature air power generation device, which condenses the working medium in a critical state, Less heat release, and the condensation heat is recycled to achieve the purpose of high thermoelectric efficiency, high energy conversion density, low unit power investment, low cost, and no power consumption for by-product air-conditioning in supercritical low-temperature air energy power generation devices

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