Slotted solar intermediate/low-temperature ORC (organic rankine cycle) thermal power generator

Abstract

The invention relates to a slotted solar intermediate / low-temperature ORC (organic rankine cycle) thermal power generator, consisting of a parabolic trough light-condensing array, a linear focusing strengthening heat collecting tube, a heat-conduction working medium, a heat exchanger, an atomizer, an atomization flash evaporation tank, a pressure pump, a pressure control valve, a heat storage device, a heat-storage working medium, an intermediate / low-temperature ORC power unit, an organic evaporating agent tank, an evaporator, a condenser, an air cooling machine set, a regulating valve, a transmission pipeline, a complementary boiler, a light-condensing array cluster PLC (programmable logic controller), and a hydraulic or turbine worm driver. According to the slotted solar intermediate / low-temperature ORC thermal power generator disclosed by the invention, the heat storage device supplies heat to an intermediate / low-temperature ORC power machine by taking atomized water vapor, glycol, heat-conducting oil or fused salt as a heat-transfer working medium so that the intermediate / low-temperature ORC power machine is directly driven to realize solar heat collection power generation. The slotted solar intermediate / low-temperature ORC thermal power generator disclosed by the invention belongs to the field of solar energy heat utilization.

Description

technical field [0001] The invention relates to a device for realizing solar thermal power generation (CSP) by using trough solar energy to drive a medium-low temperature Organic Rankine (ORC) generating set, and the technology belongs to the field of solar thermal utilization. Background technique [0002] Trough solar thermal power generation (CSP) has achieved commercial operation. Compared with tower type, dish type and reflective Fresnel thermal power generation, it has the outstanding characteristics of large scale, high concentration and high efficiency, especially the molten salt storage that has been realized. Energy function, so that solar thermal power generation has a technical basis to compete with fossil energy. However, the existing trough solar thermal power generation must use steam Rankine thermodynamic cycle like coal power generation, requiring a large amount of water for cooling, which limits the use of trough solar thermal power generation in terms of e...

AI Technical Summary

Problems solved by technology

In the report SR-550-39433 in March 2006, NREL summarized the research on the optimization and economics of the trough solar organic Rankine (ORC) power system from 2000 to 2005. However, up to now, the trough solar organic Rankine There has been no breakthrough in thermal power generation technology. The key lies in the fact that the various trough-type solar organic Rankine (ORC) thermal power generation devices that have emerged in recent years adopt almost the same technical route as geothermal power generation, and their heat storage is only simple. The organic Rankine (ORC) thermal power generation technology has not been organically combined with the medium and low temperature conditions and the trough solar thermal power generation has the advantages of energy storage, so the trough solar organic Rankine (ORC) thermal power generation cannot realize large-scale Scale installed capacity

At present, the international concentrating solar power generation (CSP) field is studying the use of working fluid substitution technology to increase the temperature of the working fluid to improve efficiency. However, as the temperature increases, correspondingly higher requirements are placed on the heat collector tube and system components. , resulting in higher cost

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