Compressed air energy storage power generation system

A compressed air energy storage and power generation system technology, applied in the electric power field, can solve problems such as insufficient combustion of fuel and air, low combustion efficiency, and flame deflection, and achieve the effects of suitable promotion and use, simplified equipment, and reduced pollution

Inactive Publication Date: 2017-01-04
CHINA DATANG CORP RENEWABLE POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, how to fully mix the high-pressure air and gas, and then use the combustion equipment to fully burn and heat the two to maximize the heating efficiency has not been effectively resolved.
This makes it impossible to use compressed air for energy storage and power generation on a large scale.
[0006] At the same time, during the high-pressure air combustion process, the flame will deflect, resulting in insufficient combustion of fuel and air and low combustion efficiency.

Method used

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  • Compressed air energy storage power generation system
  • Compressed air energy storage power generation system
  • Compressed air energy storage power generation system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] Such as figure 1As shown, in this embodiment, the compressed air energy storage power generation system further includes an air preheater 4 . The air preheater 4 includes two independent passages capable of heat exchange, a first passage 41 and a second passage 42 . The two ends of the first passage 41 communicate with the air outlet of the storage tank 1 and the air inlet nozzle 23 of the air heater 2 respectively, so that the air heated by the air heater 2 flows through the first passage 41 first; The second channel 42 is connected with the exhaust port of the power generation equipment and the air inlet of the exhaust cylinder 5 respectively, so that the gas with a certain temperature after the power generation operation is completed flows in the second channel 42 . Since the first channel 41 and the second channel 42 are in contact, the gas in the first channel 41 and the second channel 42 can conduct heat exchange, so that the generated gas exchanges heat with the...

Embodiment 2

[0081] Such as Figure 9 to Figure 13 As shown, in this embodiment, the air preheater 4 includes a heat exchange structure 410 composed of a plurality of plates 40 stacked with a certain gap; the opposite sides of each plate 40 are bent upwards , cooperate with the upper plate 40 to form a channel for gas to flow through; the adjacent plates 40 are alternately arranged vertically and horizontally, forming a first channel 41 arranged horizontally and a second channel 42 arranged vertically.

[0082] Such as Figure 11 As shown, each plate 40 is a rectangular plate of the same shape; each plate 40 includes a pair of lateral sides 43 and a pair of vertical sides 44 respectively; the lateral sides 43 and vertical sides of adjacent plates 40 44 alternate upward bending. The upper end of the upwardly bent side of each plate 40 is respectively in contact with the bottom surface of the upper plate 40 and fixed by welding. The gap distance between adjacent boards 40 is not greater t...

Embodiment 3

[0092] Such as Figure 18 As shown, in this embodiment, the air preheater 4 includes two channels that are independent of each other and capable of heat exchange, and the two ends of the first channel 41 communicate with the air supply equipment and the air heater inlet respectively. ; Both ends of the second channel 42 are respectively connected with the solar collector 7 to form a circulation channel for the molten salt medium to flow.

[0093] The two ends of the second channel 42 communicate with the outlet of the solar heat collector 7 through the liquid inlet pipeline respectively, and communicate with the inlet of the solar heat collector 7 through the liquid outlet pipeline; The liquid pipelines are respectively provided with control valves for controlling the passages of the pipelines.

[0094] preferred, such as Figure 18 As shown, in this embodiment, a two-position three-way valve 9 is provided on the liquid inlet pipeline, and the three openings of the two-posit...

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PUM

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Abstract

The invention relates to a compressed air energy storage power generation system. The system comprises an air heater for heating air to generate high-temperature and high-pressure gas, fuel supply equipment for supplying a fuel to the air heater, power generation equipment for generating electricity by using the high-temperature and high-pressure gas generated by the air heater, and gas supply equipment comprising a compressor connected with a power generation power grid for generating high-pressure gas and a gas storage tank for storing the high-pressure gas, wherein the gas storage tank is communicated with an air inlet of a combustion chamber of the air heater by a first pipeline for supplying combustion assisting gas; the gas storage tank is communicated with a guide nozzle in the combustion chamber by a second pipeline; the axis of the guide nozzle extends from the side wall of the combustion chamber to the axis direction of the combustion chamber; the direction of combustion flame in the combustion chamber is controlled; the gas storage tank is communicated with a mixing chamber of the air heater by a third pipeline; and the mixing chamber is communicated with a gas outlet end of the combustion chamber to mix combusted gas with un-combusted high-pressure air for adjusting the pressure and the temperature of gas flowing out the air heater from the mixing chamber.

Description

technical field [0001] The invention relates to the field of electric power, in particular to a compressed air energy storage power generation system, and also to a compressed air energy storage power generation method. Background technique [0002] As the proportion of large-scale renewable energy such as wind power and solar photovoltaic in the grid is getting higher and higher, due to its volatility, many areas in our country have problems of abandoning wind, abandoning light and limiting electricity, which is not conducive to the development of renewable energy in our country , it is necessary to find a large-scale energy storage method suitable for water-scarce areas in northern my country. If the electric energy wasted in the phenomenon of abandoning wind and light is stored, and when the peak of electricity consumption arrives, this part of electric energy can be used to supplement the insufficient electricity, which can realize the function of peak shaving and valley ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D15/10F24H3/04F24H9/18F23L15/00F24J2/34F24J2/30F24S10/30
CPCY02E10/44Y02E20/34
Inventor 胡永生焦建清时文刚王赤夫王飞
Owner CHINA DATANG CORP RENEWABLE POWER
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