A supercritical carbon dioxide cycle control system for photothermal power generation
A carbon dioxide and photothermal power generation technology, applied in solar thermal power generation, solar heating systems, solar collector controllers, etc., to improve the transient response rate and load followability, achieve automatic control, and improve market competitiveness.
Active Publication Date: 2021-11-05
浙江态能动力技术有限公司 +1
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Problems solved by technology
[0005] The purpose of the present invention is to provide a supercritical carbon dioxide cycle control system for photothermal power generation, which solves the technical requirements of how to make the thermoelectric conversion system adapt to frequent power regulation, so that the thermoelectric conversion system has higher load regulation characteristics and partial High efficiency characteristics under load
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[0033] In order to illustrate the technical features of the solution more clearly, the solution will be described below through specific implementation modes.
[0034] Such as figure 1 A solar energy system shown, the system includes a mirror field system 22, a high temperature heat accumulator 23, a low temperature heat accumulator 24 and a heat exchanger 9, and the mirror field system 22 includes a liquid outlet pipeline and a liquid return pipeline , the heat exchanger 9 is connected between the liquid outlet pipeline and the liquid return pipeline, the high-temperature heat accumulator 23 is arranged on the liquid outlet pipeline, and the low-temperature heat accumulator 24 is arranged on the liquid return pipeline. A bypass line 25 is set on the pipeline of the low temperature heat accumulator 24 , a first valve is set on the bypass line 25 , and a second valve is set on the inlet line of the low temperature heat accumulator 24 .
[0035] A temperature sensor is set in t...
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The present invention provides a supercritical carbon dioxide circulation control system for photothermal power generation, which includes sequentially connected intermediate heat exchangers, power generation turbines, driving turbines, high-temperature regenerators, low-temperature regenerators, The cooler, the main compressor with intercooling, and the main compressor with intercooling, the low-temperature regenerator, the high-temperature regenerator, and the intermediate heat exchanger are connected in sequence to form a closed loop one; and, the low-temperature regenerator is also connected with the recompression The machine is connected, and then the compressor, high temperature regenerator, and intermediate heat exchanger are connected in sequence to form a closed loop two, and then the compressor is connected with the driving turbine; it also includes an overall control system. The supercritical carbon dioxide cycle control system for photothermal power generation provided by the present invention enables the thermoelectric conversion system to meet the technical requirements of frequent power regulation, and enables the thermoelectric conversion system to have higher load regulation characteristics and high efficiency characteristics under partial load.
Description
technical field [0001] The invention belongs to the technical field of thermal power generation, and in particular relates to a supercritical carbon dioxide cycle control system for photothermal power generation. Background technique [0002] Solar thermal power generation is a technology that uses a large-scale mirror field to collect solar energy, converts solar energy into thermal energy and transfers it to a working substance, and then uses thermodynamic cycle technology to convert thermal energy into electrical energy. Solar thermal power generation is an important development direction of new clean energy in the world in the future. [0003] Supercritical carbon dioxide thermodynamic cycle technology is based on the principle of Brayton cycle, a new type of thermal cycle technology formed by regulating and matching the physical property change characteristics of supercritical carbon dioxide working fluid with the typical process of thermodynamic cycle. The entire ther...
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IPC IPC(8): F24S20/20F24S23/77F24S50/40F24S60/30F03G6/06F01K25/10F01D17/10F01D15/10
CPCF01D15/10F01D17/10F01K25/103F03G6/067F24S20/20F24S23/77F24S50/40F24S60/30Y02E10/46
Inventor 不公告发明人
Owner 浙江态能动力技术有限公司