Low temperature cold storage system and method

A low-temperature, cold storage technology, applied in heat storage equipment, household refrigeration devices, lighting and heating equipment, etc., can solve the problems of low cold storage efficiency, high cost of cold storage of liquid working fluid, and large storage volume, so as to improve cold storage efficiency and occupy The effect of small storage space and system cost reduction

Active Publication Date: 2016-11-16
中绿中科储能技术有限公司
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Problems solved by technology

[0007] The invention provides a low-temperature cold storage system and method for a low-temperature liquid air energy storage system, which uses fluid working medium for heat exchange and solid-phase medium for cold storage, and is used to solve the problem of low cold storage efficiency in traditional solid-phase medium cold storage systems and liquid working fluids. The problem of high cost and large storage volume of quality cold storage

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[0030] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process conversion made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields , are all included in the scope of patent protection of the present invention in the same way.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terminology used herein in the description of the present invention is only for ...

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Abstract

The invention relates to the field of low temperature liquid air energy storage, in particular to a low temperature cold storage system and method. The low temperature cold storage system comprises a cold release heat exchanger, a cold storage heat exchanger, a fluid work medium storage device and a solid phase medium cold accumulator; solid phase media used for cold accumulation are contained in the solid phase medium cold accumulator; fluid work media used for heat exchange are contained in the fluid work medium storage device; the fluid work medium storage device, the solid phase medium cold accumulator and the cold release heat exchanger are sequentially connected through pipelines, and a cold release circulating channel is formed; and the solid phase medium cold accumulator, the fluid work medium storage device and the cold storage heat exchanger are sequentially connected through pipelines, and a cold storage circulating channel is formed. According to the low temperature cold storage system and method, the solid phase media are adopted for cold storage, the fluid work media are adopted as heat exchange media, the large temperature difference problem that air and cold storage media directly exchange heat at the initial stage is solved, the cold accumulation efficiency is improved, and the system cost is reduced.

Description

technical field [0001] The invention relates to the technical field of energy storage, in particular to a low-temperature cold storage system and method. Background technique [0002] The currently developed and applied energy storage technologies mainly include flywheel energy storage, battery energy storage, superconducting energy storage, supercapacitor energy storage, pumped water storage and compressed air energy storage, etc. Among them, the energy storage technologies that can continue to output large capacity for several hours at a relatively low cost mainly include: pumped hydro storage, battery energy storage and compressed air energy storage, which are the few that can achieve long-term (tens of hours) and large-capacity (Hundreds to thousands of megawatt hours) of energy storage applications, several other energy storage technologies are more suitable for providing short-term energy storage services to improve power quality and improve grid system stability. As ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D3/00F28D20/00
CPCF25D3/005F25D2303/085F28D20/00F28D20/0056F28D2020/0017Y02E60/14
Inventor 杨鲁伟陈嘉祥王俊杰张振涛邓章
Owner 中绿中科储能技术有限公司
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