Solar ORC power generation system and power generation method thereof

Abstract

The invention discloses a solar ORC power generation system and a power generation method of the solar ORC power generation system. Solar energy can be utilized to generate power, and therefore the heat energy utilization rate is high. The solar ORC power generation system mainly comprises a heat exchanger which is connected with a solar heat source, a power output device, a generator which is connected with the power output device, a circulating pump and a condenser. The solar heat source comprises solar heat collecting panels, an oil storage tank and a conduction oil circulating pump. The solar heat source further is further provided with a heat regenerator. The heat regenerator is used for conducting heat exchange on an organic working medium discharged by the power output device and an organic working medium discharged by an organic working medium circulating pump, and therefore remaining heat energy of the organic working medium discharged by the power output device can be fully utilized. The solar ORC power generation system is used for power generation, therefore, heat energy can be effectively utilized, energy saving is facilitated, and system device cost is reduced.

Description

technical field [0001] The present invention relates to a power generation system and a power generation method, in particular to a solar ORC power generation system and a power generation method. Background technique [0002] ORC is Organic Rankine Cycle, and the power generation system designed using this technology is ORC power generation system. At present, the existing ORC power generation system generally includes two heat exchangers, a power output device, a generator connected to the power output device, and a circulation pump. For example, "Journal of Refrigeration", Volume 33, Issue 1, February 2012, disclosed the above-mentioned ORC power generation system. And Chinese Patent Publication No. CN1950591A also discloses a similar ORC power generation system. The various devices in the above-mentioned power generation system are connected to form a circulation loop. The organic medium circulates in this loop. One of the heat exchangers can be connected with a sola...

AI Technical Summary

Problems solved by technology

The existing power generation system has the following deficiencies: 1. The organic working medium still retains part of the heat energy after the power output device does work. This heat energy is wasted by the heat released by the condenser, and the system efficiency is very low

2. After the system has been used for a long time, the internal organic working medium is lost and cannot be replenished in time

3. The setting of the existing solar heat source is not concise and reasonable enough, and the utilization rate of solar energy is low

[0009] (3) Since the temperature of the heat source is not high, the heat exchanger cannot generate high steam pressure and the specific volume of the working steam is large, which directly affects the size of the steam turbine, resulting in an increase in equipment cost

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