Gravity energy storage system with buffering function

A technology of energy storage system and buffering effect, which is applied in systems for storing electrical energy, liquid variable capacity machinery, lighting and heating equipment, etc. It can solve the problems of impact under shafts and complex energy storage systems

Active Publication Date: 2022-07-29
XIAN THERMAL POWER RES INST CO LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Gravity compressed air energy storage is by setting a gravity block in the shaft, the gravity block and the shaft are sealed and connected by a sealing film, and a sealed gas storage chamber is formed in the shaft below the gravity block for the storage of high-pressure gas. After being compressed, it is passed into the air storage chamber, and the gravit...

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  • Gravity energy storage system with buffering function
  • Gravity energy storage system with buffering function

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Embodiment Construction

[0027] The following describes in detail the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, but should not be construed as a limitation on the present application. On the contrary, the embodiments of the present application include all changes, modifications and equivalents falling within the spirit and scope of the appended claims.

[0028] figure 1 It is a schematic structural diagram of a gravity energy storage system with buffering function proposed by an embodiment of the present application.

[0029] see figure 1 and figure 2 , a gravity energy storage system with buffering effect, comprising a shaft 1, a gravity block 2 is mo...

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Abstract

The invention provides a gravity energy storage system with a buffering effect. The gravity energy storage system comprises a vertical shaft; a gravity block is movably inserted in the vertical shaft, the gravity block and the side wall of the vertical shaft are in sealed connection through a sealing piece, the gravity block comprises a shell and a heat storage material filled in the shell, a first vent hole is formed in the bottom of the shell, an air compressor unit and an air expansion unit are connected to the top of the shell, and wire coil arrays are correspondingly wound on the inner wall of the vertical shaft and the outer wall of the shell. The lead coil array on the inner wall of the vertical shaft is connected with different power supplies in sequence, and each lead coil on the outer wall of the shell forms a closed circuit, so that alternating current with fixed frequency is applied to the lead coil array on the inner wall of the vertical shaft through the power supplies, and reverse circulating current is induced in the lead coil array on the outer wall of the shell; after the two groups of lead coil arrays with opposite current directions form a reverse electromagnetic field, upward acting force is applied to the gravity block through electromagnetic force, and when an emergency occurs, the gravity block is rapidly decelerated, so that the impact kinetic energy to the lower part of the vertical shaft during falling is reduced.

Description

technical field [0001] The present application relates to the technical field of electrical energy storage, and in particular, to a gravity energy storage system with a buffering effect. Background technique [0002] Gravity compressed air energy storage is to set a gravity block in the shaft, the gravity block and the shaft are sealed and connected by a sealing film, and a sealed air storage cavity is formed in the shaft under the gravity block for the storage of high-pressure gas. After being compressed, it is passed into the air storage chamber, and the gravity block moves upward, converting the energy of the compressed air into the gravitational potential energy of the gravity block for storage. During the energy storage process, the heat energy generated by the compressed air is usually heated by setting a heat exchange unit. However, the setting of the heat exchange unit makes the energy storage system complicated, and in the event of an emergency, the uncontrolled dow...

Claims

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Application Information

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IPC IPC(8): F01K27/00F04B41/02F03G3/00H02J15/00F28D20/00
CPCF01K27/00F04B41/02F03G3/00H02J15/006H02J15/007F28D20/00
Inventor 文军梅生伟李阳梁法光薛小代张学林赵瀚辰杨成龙张通
Owner XIAN THERMAL POWER RES INST CO LTD
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