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Solar photo-thermal power generation system and method based on thermochemical energy storage

A photothermal power generation and solar energy technology, applied in the field of solar energy utilization, can solve the problem of uneven time distribution, and achieve the effect of facilitating overall management and reducing types.

Pending Publication Date: 2019-09-17
XIAN THERMAL POWER RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Solar energy is clean and inexhaustible, but there is a problem of uneven time distribution. When solar energy is used for power generation, energy storage and other technologies are generally required.

Method used

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  • Solar photo-thermal power generation system and method based on thermochemical energy storage

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0026] refer to figure 1 , the solar thermal power generation system based on thermochemical energy storage according to the present invention includes a heat collector 2, a heat exchanger 4, an energy storage heat exchanger 7, a carbon dioxide storage tank 8, a turbine 14, a generator 15, a cooling 16, heat exchange circuit compressor 5, power generation circuit compressor 17, energy storage circuit compressor 13. The outlet of the heat collector 2 is connected with the inlet of the hot side of the heat exchanger 4, the outlet of the hot side of the heat exchanger 4 is connected with the inlet of the heat exchange circuit compressor 5, and the outlet of the heat exchange circuit compressor 5 is connected with the inlet of the heat collector 2 connected.

[0027] The shell side inlet of the energy storage heat exchanger 7 is connected with the outlet of the...

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Abstract

The invention discloses a solar photo-thermal power generation system and method based on thermochemical energy storage. The system comprises a heat collector, the heat collector communicates with a heat exchanger, the heat exchanger communicates with a heat exchange loop compressor, the heat exchange loop compressor communicates with the heat collector, a shell pass of an energy storage heat exchanger communicates with the heat collector, the shell pass of the energy storage heat exchanger communicates with the heat exchange loop compressor, a tube pass of the energy storage heat exchanger communicates with a carbon dioxide storage tank, the carbon dioxide storage tank communicates with an energy storage working medium compressor, the energy storage working medium compressor communicates with the tube pass of the energy storage heat exchanger, the cold side of the heat exchanger communicates with a turbine, the turbine communicates with the hot side of a cooler, the cooler communicates with a power generation loop compressor, the power generation loop compressor communicates with the heat exchanger, the heat exchanger communicates with the energy storage loop compressor, and the energy storage loop compressor communicates with the shell pass of the energy storage heat exchanger. The system can realize organic combination of thermochemical energy storage and solar photo-thermal power generation.

Description

technical field [0001] The invention relates to the technical field of solar energy utilization, in particular to a solar photothermal power generation system and method based on thermochemical energy storage. Background technique [0002] Thermochemical energy storage is mainly based on a reversible thermochemical reaction, which stores and releases energy through the breaking and reorganization of chemical bonds. In the energy storage reaction, the energy storage material absorbs heat and decomposes into two substances for separate storage. When the two substances are fully contacted to react, the stored chemical energy is converted into heat energy and released. Thermochemical energy storage has high density and efficiency, and is suitable for high-temperature and high-density storage of solar thermal energy. The volume and weight energy storage density of thermochemical energy storage is much higher than that of sensible heat or phase change heat storage. The energy sto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03G6/06
CPCF03G6/06Y02E10/46
Inventor 张纯杨玉白文刚张一帆李红智姚明宇
Owner XIAN THERMAL POWER RES INST CO LTD
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