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Efficient novel compressed air energy storage system without complementary combustion

A compressed air energy storage and energy storage system technology, which is applied to steam engine devices, liquid variable capacity machinery, pump devices, etc., can solve problems such as pressure energy loss, achieve compact and reasonable structure, scientific and simple design, and improve system efficiency. Effect

Inactive Publication Date: 2017-11-24
翟晓慧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the invention patents in the literature, the throttle valve is used to realize the pressure reduction of compressed air, and there is a large loss of pressure energy; Or there are limitations in the use of remote areas where natural gas pipelines are not easily accessible

Method used

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  • Efficient novel compressed air energy storage system without complementary combustion
  • Efficient novel compressed air energy storage system without complementary combustion
  • Efficient novel compressed air energy storage system without complementary combustion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] This embodiment can be used not only in the peak-shaving and valley-filling mode of the power grid, but also in the large-scale storage and release of new energy such as wind power and photovoltaic power generation. At the same time, a heat exchanger is arranged in front of the adjustable pressure matcher to further improve the working performance of the adjustable pressure matcher.

[0036] Such as figure 1 , figure 2 , Figure 6 and Figure 7 As shown, in the energy storage stage, in order to increase the energy density of the air in the compressed air storage tank 113, a mode of continuous series operation of multiple air compressors 111 is adopted. The first air compressor 111 has a motor 110 in series, so that the last one The air compressor 111 outputs compressed air with high pressure parameters (for example, 9MPa). In order to fully recover the heat of compression and at the same time ensure that all the air compressors 111 operate safely under the designe...

Embodiment 2

[0043] Such as image 3 , Figure 6 and Figure 7 As shown, this embodiment can be used not only in the peak-shaving and valley-filling mode of the power grid, but also in the large-scale storage and release of new energy such as wind power and photovoltaic power generation. The difference compared with Embodiment 1 is that this embodiment cancels the heat exchanger 210 configuration before the adjustable pressure matching device 310, and the compressed air flow in the compressed air storage tank 113 directly enters the adjustable pressure matching device 310 without heating. Adjustable pressure matcher 310. In addition, the configuration of other parts of the energy storage system is consistent with that of Embodiment 1.

Embodiment 3

[0045] Such as Figure 4 , Figure 6 and Figure 7 As shown, this embodiment can be used not only in the peak-shaving and valley-filling mode of power grid and new energy power grid connection, but also in the power online smoothing mode of real-time power grid connection of new energy power such as wind power and photovoltaic power generation, which greatly improves the The adaptability of the energy storage system to various functional requirements enables both the peak-shaving and valley-filling mode and the power online smoothing mode to achieve their respective optimal energy storage efficiencies.

[0046] In the configuration of the energy storage system, multiple air compressors 111 are configured. The first air compressor 111 is connected with a motor 110 in series, and a clutch 112 is installed between the air compressors 111. According to the requirements of the system operation, the high-pressure air The compressor is inactive to reduce energy consumption during t...

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Abstract

The invention discloses an efficient novel compressed air energy storage system without complementary combustion. The efficient novel compressed air energy storage system comprises an energy storage system, an electric energy release system and a compressed heat storage and heat exchange system. The energy storage system comprises a motor, a plurality of air compressors and compressed air storage tanks, the air compressors are serially connected with one another and are connected with the motor, and the compressed air storage tanks are connected with the air compressors; the electric energy release system is provided with an adjustable pressure matcher, air expanders and a power generator, the adjustable pressure matcher is connected with the corresponding compressed air storage tank, and the corresponding air expander is connected with the adjustable pressure matcher; the compressed heat storage and heat exchange system comprises compressed heat storage heat exchange mechanisms, pressurized water storage tanks and stored heat release heat storage mechanisms, the compressed heat storage heat exchange mechanisms are positioned on the energy storage system and are connected with the pressurized water storage tanks, and the stored heat release heat exchange mechanisms are positioned on the electric energy release system and are connected with the pressurized water storage tanks. The efficient novel compressed air energy storage system without the complementary combustion has the advantages that the efficient novel compressed air energy storage system is scientific and simple in design, compact and reasonable in structure, low in cost and wide in application, power consumption of the efficient novel compressed air energy storage system can be reduced, and the efficiency of the efficient novel compressed air energy storage system can be greatly improved.

Description

technical field [0001] The invention relates to the field of electric energy storage, specifically, it can be used for large-scale energy storage of grid electric energy to realize peak-shaving and valley-filling of grid load, and can also be used for improving the power quality of new energy power such as wind power and photovoltaic power generation, and for large-scale storage of electric energy A new type of high-efficiency non-supplementary combustion compressed air energy storage system. Background technique [0002] Among energy storage technologies, pumped hydro storage technology, battery energy storage technology and compressed air energy storage technology all have their own advantages and disadvantages. Pumped water storage technology has a high technical maturity, and its efficiency can reach more than 75%. It has been widely used in southern provinces of my country, but most of my country's wind power plants are distributed in water-scarce areas, and the terrain...

Claims

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Application Information

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IPC IPC(8): F01K7/02F01K27/00F01K9/00F04B41/02F04B37/10
CPCF01K7/02F01K9/003F01K27/00F04B37/10F04B41/02Y02E60/16
Inventor 翟晓慧
Owner 翟晓慧
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