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Gas turbine system and energy storage and releasing method thereof

A gas turbine and heat storage technology, applied in the energy field, can solve problems such as high cost and low thermal efficiency, and achieve the effects of eliminating fluctuations, lowering hydrogen production temperature, and improving energy storage density

Active Publication Date: 2019-04-09
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problems of low thermal efficiency and high cost of the existing solar gas turbine system, and provide a gas turbine system that can improve energy utilization efficiency and reduce system cost, and a heat storage and heat release method of the gas turbine system

Method used

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  • Gas turbine system and energy storage and releasing method thereof
  • Gas turbine system and energy storage and releasing method thereof

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Embodiment approach 1

[0041] The first embodiment of the present invention provides a solar gas turbine system, see figure 1 As shown, it includes: a combustion chamber 8 and a power generation device 9, the combustion chamber 8 is used to generate high-temperature gas, and the generated high-temperature gas enters the power generation device 9 and is used for power generation;

[0042] Also includes: particle circulation device 6 and air compressor 7;

[0043] Solar heat absorber 1, for absorbing solar energy;

[0044] The solar reformer 3 is connected to the hot tank 2 and the solar heat absorber 1 in turn, and the solar reformer 3 is provided with reducing substances; and the solar reformer 3 is connected to the combustion chamber 8;

[0045] Heat exchanger 4, the heat exchanger 4 is provided with a reaction chamber and a heat exchange chamber, one end of the reaction chamber is connected to the solar reformer 3, and the other end is connected to the cold tank 5 and the particle circulation dev...

Embodiment approach 2

[0066] The second embodiment of the present invention provides a solar gas turbine system. The second embodiment is a further improvement of the first embodiment. The main improvement is that it also includes:

[0067] The hydrogen production reactor 12 that is connected and arranged between the solar reformer 3 and the heat exchanger 4 is provided with a water vapor inlet on the hydrogen production reactor 12 for feeding water vapor; the hydrogen production reactor 12 and the combustion chamber 8 connection; the heat storage particles enter the hydrogen production reactor 12 from the solar reformer 3, wherein the metal elemental particles react with water vapor to generate low-valence metal oxide particles and hydrogen, and the hydrogen enters the combustion chamber 8 to participate in combustion; the heat storage particles enter from the The hydrogen production reactor 12 enters the reaction chamber of the heat exchanger.

[0068] The steam generator 10 and the water pump 11...

Embodiment approach 3

[0077] The third embodiment of the present invention provides a solar gas turbine system. The third embodiment is an improvement of the first embodiment or the second embodiment. The main improvement is that the reaction chamber and the heat exchange chamber in the heat exchanger 4 In communication with each other, the air sent into the heat exchange chamber by the air compressor 7 participates in the oxidation reaction between the heat storage particles and the air in the reaction chamber.

[0078] In this embodiment, the reaction chamber and the heat exchange chamber share the same chamber, and the air from the air compressor 7 participates in the oxidation reaction between the heat storage particles and the air in the reaction chamber, that is, direct heat exchange is realized, so that the air in this embodiment The structure of the gas turbine system is more compact and the operation process is more efficient.

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Abstract

The invention discloses a gas turbine system and an energy storage and releasing method. The system comprises a combustion chamber and a power generation device; the combustion chamber is used for generating high-temperature gas, the high-temperature gas enters the power generation device to be used for power generation, and the system further comprises a particle circulation device, an air compressor, a solar heat absorber used for absorbing solar energy, a solar reformer connected with the solar heat absorber and internally provided with reductive matter, and a heat exchanger internally provided with a reaction cavity and a heat exchange cavity, the two ends of the reaction cavity are connected with the solar reformer and the particle circulation device, and the two ends of the heat exchange cavity are connected with the air compressor and the combustion chamber, and the two ends of the particle circulation device are connected with the reaction cavity and the solar heat absorber. The system can achieve the manner that metallic oxide and reducing substances are complemented for energy storage, an exterior heat source like solar energy can be stored in a chemical energy manner, according to the need of the gas turbine, heat is supplied, and the advantages of being high in system efficiency, compact in size and low in cost are achieved.

Description

technical field [0001] The invention relates to the field of energy technology, in particular to a gas turbine system and heat storage and release methods. Background technique [0002] The total global solar radiation is about 1.7×10 17 W, of which my country accounts for about 1% (1.8×10 15 W, equivalent to 1.9 trillion tons of standard coal per year), is 680 times the current annual energy consumption in my country, and solar energy has huge development potential. Solar power generation technologies are mainly divided into two categories: photovoltaic power generation and photothermal power generation. Photovoltaic power generation has many shortcomings such as discontinuous day and night, serious pollution in the manufacturing process of photovoltaic panels, high cost and short service life. Solar thermal power generation can use cheap energy storage technology to stabilize the output of power generation. It can be used as both base load power supply and peak load pow...

Claims

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Application Information

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IPC IPC(8): F02C6/18F02C3/22F03G6/06F01D15/10
CPCF01D15/10F02C3/22F02C6/18F03G6/064Y02E10/46
Inventor 肖刚杨天锋倪明江庞华骆仲泱程乐鸣高翔岑可法
Owner ZHEJIANG UNIV