Compressed air energy storage and water pumping energy storage combined energy storage power generation system

By combining compressed air energy storage with pumped energy storage, and using high water potential energy in high-point reservoirs to compress air, the problem of difficult location selection of traditional energy storage technologies is solved, and efficient energy storage and power generation is achieved.

CN119982297APending Publication Date: 2025-05-13QINGHAI UNIV OF SCI & TECH (UNDER PREPARATION) +2
0 Cites 2 Cited by

Patent Information

Application Number
CN202510291207.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2025-05-13

AI Technical Summary

Technical Problem

There are difficulties in site selection in the large-scale promotion and application of existing energy storage technologies, especially traditional compressed air energy storage technology requires underground salt holes as gas storage space, which leads to difficulties in site selection.

Method used

The energy storage power generation system is adopted that combines compressed air energy storage and pumped water storage. The high water level potential energy in the high-point reservoir is used to compress the air in the water gas co-capacity tank to realize energy storage, and the water in the water gas co-capacity tank is flowed into the generator set through the hydroelectric generator set for power generation.

Benefits of technology

The combination of hydropower, compressed air energy storage and pumped water energy storage is realized, and the energy storage is improved, and because it does not rely on underground salt holes, the location selection of the system is easier.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention relates to the technical field of water pumping energy storage, in particular to a compressed air energy storage and water pumping energy storage combined energy storage power generation system which comprises a high-point reservoir, a water pumping generator set and a low-point reservoir which are sequentially communicated from high to low. The high-point reservoir naturally stores water; water in the high-point reservoir can downwards flow into the hydroelectric generating set for power generation according to gravity; water flowing through the hydroelectric generating set for power generation can flow into the low-point reservoir according to gravity; the water pumping unit can pump water in the low-point reservoir into the high-point reservoir; the device further comprises a plurality of water-gas co-containing tanks. Water and air are contained in the water-air co-containing tank at the same time; the altitude of the water-gas co-containing tank is the same as that of the water pumping generator set; the water-gas co-containing tank is communicated with the high-point reservoir and the water pumping generator set simultaneously; water in the high-point reservoir can downwards flow into the water-gas co-containing tank according to gravity and compress air in the water-gas co-containing tank; and water in the water-gas co-containing tank can flow into the hydroelectric generating set under the extrusion of the compressed air to generate power.
Need to check novelty before this filing date? Find Prior Art