Method for compressed air energy storage by using underground waste space
A technology of compressed air energy storage and underground space, which is applied in the direction of earth drilling, mining equipment, mining equipment, etc., can solve the problems of limited and unsatisfactory underground salt cavern resources, and achieve the advantages of simple method, improved utilization and easy maintenance Effect
Pending Publication Date: 2022-05-10
北京中海能大储能技术有限公司
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Problems solved by technology
Current applications mainly focus on underground salt caverns, but the resources of underground salt caverns are extremely limited, which is far from meeting the needs of a large number of distributed compressed air energy storage devices for large-scale gas storage.
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[0021] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the solutions of the present invention will be further described below. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0022] In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here; obviously, the implementation in the description is only a part of the implementation of the present invention, rather than Full implementation.
[0023] Such as figure 1 As shown, the method for using underground waste space for compressed air energy storage provided by the embodiment of the present invention includes the following steps:
[0024] Step S1, grouting and sealing the water gushing place...
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The invention relates to the technical field of compressed air energy storage, and discloses a method for compressed air energy storage by using underground waste space. The method comprises the following steps that grouting plugging is conducted on the water burst position of the underground space, so that surrounding rock of the underground space forms a closed space; a flexible airtight polymer film is laid on the inner wall of the surrounding rock of the underground space, the airtight polymer film extends to an inlet and an outlet of the underground waste space, and compressed air is injected into the space defined by the airtight polymer film. The compressed air energy storage method provided by the invention can be suitable for various types of underground spaces, the utilization of the underground spaces is greatly improved, the method is simple, the transformation cost of the underground spaces is reduced, in addition, the airtight polymer film can effectively prevent leakage of compressed gas, the phenomenon of energy reduction of the stored gas is avoided, and the energy storage efficiency is improved. And when gas leakage occurs, the airtightness of the underground space can be recovered by re-laying or overlapping the airtight polymer film, so that the maintenance is convenient.
Description
technical field [0001] The invention relates to the technical field of compressed air energy storage, in particular to a method for utilizing underground waste space for compressed air energy storage. Background technique [0002] Compressed air energy storage refers to the energy storage method that uses electric energy to compress air during the low load period of the grid, seals the air at high pressure in storage spaces, such as gas storage tanks and underground caverns, and releases compressed air to drive steam turbines to generate electricity during peak load periods of the grid. . The selection of large-scale compressed gas storage space is one of the main problems restricting the development of compressed air energy storage. Current applications mainly focus on underground salt caverns, but the resources of underground salt caverns are extremely limited, which is far from meeting the needs of a large number of distributed compressed air energy storage devices for l...
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IPC IPC(8): E21F17/16
CPCE21F17/16
Inventor 宋大为罗永泉
Owner 北京中海能大储能技术有限公司