Scroll compression-expansion compound machine for compressed air energy storage technology

Abstract

The invention discloses a scroll compression-expansion compound machine for compressed air energy storage technology. In the scroll compression-expansion compound machine for the compressed air energy storage technology, an exhaust valve is arranged at the position of a vent hole at the bottom of a static vortex disk. The scroll compression-expansion compound machine for the compressed air energystorage technology is characterized in that: the exhaust valve is a controllable exhaust valve and is provided with a rotating shaft by which a tongue-shaped valve sheet of the exhaust valve can rotate to a certain angle; when the compound machine is in a compressed operation state, the tongue-shaped valve sheet is positioned at the position of blocking the vent hole; a crankshaft transmission mechanism drives a moveable vortex disk to rotate, so that the moveable vortex disk is meshed with the static vortex disk to continuously compress induced air; and when the compound machine is in an expansion operation state, the rotating shaft is rotated, so that the tongue-shaped valve sheet is separated from the position of blocking the vent hole, and the compressed air from the direction of an exhaust pipe directly enters a volume cavity formed by the moveable vortex disk and the static vortex disk and expands to do work to push the moveable vortex disk to drive the crankshaft transmission mechanism to rotate to provide a certain driving force to an electric generator. The scroll compression-expansion compound machine for the compressed air energy storage technology can realize compound functions of a compressor and an expander, and has the advantages of high efficiency, compact structure, small volume, light weight, simpleness in control and the like.

Description

technical field [0001] The invention belongs to the technical field of compressors, and relates to a scroll compression-expansion compound machine using compressed air as an energy storage method. On the one hand, it can be used to compress air to realize compressed air energy storage. On the other hand, when the compressed air needs to expand to do work, the diverter valve can also play the role of an expander, so as to ensure the mutual conversion of energy storage compression and expansion work. Background technique [0002] Renewable energy power generation technology has become increasingly mature and has achieved remarkable economic and social benefits. However, renewable energy sources such as solar energy and wind energy often change randomly at different times and spaces due to natural conditions. The fluctuation and intermittency of energy supply will cause the fluctuation of grid power, resulting in the decline of power quality. Studies have shown that energy st...

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Problems solved by technology

Judging from the current reports, the scroll compression-expansion compound machine that can use the same set of dynamic and static scrolls of the scroll compressor to simultaneously realize the functions of air compression and compressed gas expansion has not yet appeared at home and abroad.

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