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
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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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