Large-scale underground compressed hydrogen energy storage system
A technology for compressing hydrogen and energy storage systems, applied in the field of hydrogen energy and energy storage, can solve problems such as high cost and limited capacity, and achieve the effects of improving hydrogen storage capacity, reducing safety risk index, and reducing safety risks.
Pending Publication Date: 2022-08-09
NINGBO UNIV
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Problems solved by technology
The existing hydrogen storage technology is mainly concentrated in small-scale steel tank storage, with limited volume and high cost. The existing small-scale hydrogen storage technology is far from meeting the requirements
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[0017] The present invention will be further described in detail below with reference to the embodiments of the accompanying drawings.
[0018] Examples of large-scale underground compressed hydrogen energy storage systems such as figure 1 and figure 2 As shown, it includes a ground power grid 1, an electrolytic cell 2, a hydrogen compressor 3, an underground high-pressure hydrogen storage chamber 4, a hydrogen refueling station 5 and a hydrogen energy power generation system 6. The underground high-pressure hydrogen storage chamber 4 is arranged in the underground surrounding rock 9, and the underground The high-pressure hydrogen storage chamber 4 is surrounded by an inner lining concrete layer 41 and an inner lining sealing layer 42. In this embodiment, the inner lining sealing layer 42 is made of butyl rubber, and the inner lining sealing layer 42 is arranged on the inner wall of the inner lining concrete layer 41. The ground power grid 1 and the electrolytic cell 2 are r...
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The large-scale underground compressed hydrogen energy storage system comprises a ground power grid, an electrolytic cell, a hydrogen compressor, an underground high-pressure hydrogen storage chamber, a hydrogen refueling station and a hydrogen energy power generation system, the underground high-pressure hydrogen storage chamber is arranged in underground surrounding rock, and the underground high-pressure hydrogen storage chamber is defined by a lining concrete layer and a lining sealing layer; the lining sealing layer is arranged on the inner wall of the lining concrete layer, the ground power grid and the electrolytic cell are electrically connected with the renewable energy power plant, the electrolytic cell is connected with the air inlet end of the hydrogen compressor, the air outlet end of the hydrogen compressor is connected with the underground high-pressure hydrogen storage chamber, the hydrogen refueling station and the hydrogen energy power generation system, and the hydrogen energy power generation system is electrically connected with the ground power grid. According to the energy storage system, when abandoned electric energy is used for water electrolysis hydrogen production, compressed hydrogen is stored underground, the hydrogen storage capacity is greatly improved, the safety risk index is greatly reduced, coupling of large-scale underground hydrogen storage and a renewable energy power generation system is achieved, and zero carbon emission is achieved in the whole hydrogen storage and power generation process.
Description
technical field [0001] The invention relates to the field of hydrogen energy and energy storage, in particular to a large-scale underground compressed hydrogen energy storage system. Background technique [0002] As a zero-carbon emission, efficient and clean secondary energy, hydrogen energy will occupy an important position in the future national energy system. In the hydrogen energy system, the preparation and production of hydrogen is the foundation, and the storage and transportation of hydrogen are the prerequisites for large-scale application. Hydrogen production, storage and transportation are the three core links that constitute the hydrogen energy industry chain. The existing hydrogen storage technology is mainly concentrated in small-scale steel tank storage, with limited volume and high cost. The existing small-scale hydrogen storage technology is far from meeting the requirements. Therefore, the development of large-scale high-pressure hydrogen storage technolo...
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Login to View More IPC IPC(8): C25B1/04C25B9/65F04B41/02F04B37/12F04B37/18H02J15/00F17C1/00F17C1/02F17C5/06F17C13/00
CPCC25B1/04C25B9/65F04B41/02F04B37/12F04B37/18H02J15/008F17C1/007F17C1/02F17C5/06F17C13/00F17C2221/012Y02P20/133
Inventor 夏才初徐英俊秦世康杜时贵徐晨
Owner NINGBO UNIV