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Carbon dioxide energy storage system with cold source and control method thereof

A technology of carbon dioxide and energy storage system, applied in the field of energy storage, can solve the problems of low energy storage efficiency of carbon dioxide energy storage system, insufficient cooling capacity for carbon dioxide condensation, etc.

Active Publication Date: 2022-03-01
EXA ENERGY TECH (SHENZHEN) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, when compressing and storing carbon dioxide, since the condensation temperature of high-pressure carbon dioxide is below normal temperature, the cooling capacity required for carbon dioxide condensation often occurs in summer or when the amount of condensed water is insufficient. Reduced energy efficiency

Method used

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  • Carbon dioxide energy storage system with cold source and control method thereof
  • Carbon dioxide energy storage system with cold source and control method thereof
  • Carbon dioxide energy storage system with cold source and control method thereof

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Embodiment Construction

[0037] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the present disclosure.

[0038] The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the present disclosure. However, on...

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Abstract

The invention provides a carbon dioxide energy storage system with a cold source and a control method thereof. The carbon dioxide energy storage system with the cold source comprises a liquid storage tank, an energy release assembly, a gas storage and an energy storage assembly which are sequentially connected in a closed loop mode, and further comprises a cold source assembly communicating with the energy storage assembly. The energy storage assembly comprises a condenser, and the condenser is provided with a carbon dioxide channel communicating with a liquid storage tank and a cold source channel used for cooling carbon dioxide. The cold source assembly comprises a medium container used for storing liquid and high-pressure air; the expansion assembly is connected with the medium container and the cold source channel, high-pressure air in the medium container can flow into the expansion assembly to be expanded and cooled to form low-temperature air, and the low-temperature air enters the cold source channel to cool the carbon dioxide. According to the carbon dioxide energy storage system with the cold source, the system efficiency of the carbon dioxide energy storage system with the cold source can be improved.

Description

technical field [0001] The present disclosure relates to the technical field of energy storage, in particular to a control method of a carbon dioxide energy storage system with a cold source. Background technique [0002] Carbon dioxide energy storage technology is an energy storage technology that uses the compression and expansion of carbon dioxide to store and release energy. During periods of low electricity consumption, excess electricity can be used to compress carbon dioxide and store it in liquid form. During the peak period of electricity consumption, carbon dioxide is released, and the turbine drives the generator to output electricity, so as to make full use of energy and realize peak shaving and valley filling. [0003] However, when compressing and storing carbon dioxide, since the condensation temperature of high-pressure carbon dioxide is below normal temperature, the cooling capacity required for carbon dioxide condensation often occurs in summer or when the...

Claims

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Application Information

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IPC IPC(8): F01K25/10F03B13/00F25J1/02
CPCF01K25/103F03B13/00F25J1/0228F05B2220/706
Inventor 谢永慧王秦王雨琦张荻
Owner EXA ENERGY TECH (SHENZHEN) CO LTD
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