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Mixed cold storage system based on liquid and solid-liquid working media

A liquid and working medium technology, applied in the field of energy storage, can solve the problems of system loss, large unsteady heat transfer temperature difference, etc., and achieve the effect of improving energy storage efficiency, improving cold storage efficiency, and overcoming local cooling capacity shortage

Active Publication Date: 2016-04-20
中绿中科储能技术有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] The embodiment of the present application provides a mixed cold storage system based on liquid and solid-liquid working fluid, which is used to solve the problem of large unsteady heat transfer temperature difference in the cold storage medium in the prior art that leads to system loss during cold storage and cooling. question

Method used

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  • Mixed cold storage system based on liquid and solid-liquid working media

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Embodiment Construction

[0019] In order to make the objectives, technical solutions, and advantages of the present application clearer, the technical solutions of the present application will be described clearly and completely in conjunction with specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of this application.

[0020] The technical solutions provided by this application will be described in detail below with reference to the drawings.

[0021] See figure 1 As shown, the present application is a hybrid cold storage system based on liquid and solid-liquid working medium for low-temperature liquid air energy storage, including a liquid working medium cold storage module 10...

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Abstract

The invention discloses a mixed cold storage system based on liquid and solid-liquid working media. The system is used for low temperature liquid air energy storage and comprises multiple stages of liquid working medium cold storage modules, a solid-liquid phase change working medium cold storage module and gas heat exchange runners penetrating through the liquid working medium cold storage modules and the solid-liquid phase change working medium cold storage module, wherein each liquid working medium cold storage module comprises a cold storage and heat exchange unit, a cold release and heat exchange unit and at least two storage units used for storing liquid working media; the two storage units are respectively connected between the cold storage and heat exchange unit and the cold release and heat exchange unit to form a passage for the liquid working media to circularly flow in liquid phase, exchange heat and be stored. The system can achieve the effect of effectively reducing system losses caused by unsteady state heat transfer temperature difference.

Description

Technical field [0001] This application relates to the field of energy storage technology, and in particular to a hybrid cold storage system based on liquid and solid-liquid working fluids. Background technique [0002] In recent years, the total installed capacity of wind power and the total installed capacity of solar power have shown a rising trend. However, in response to its vigorous development, there has been a large number of wind curtailment and power curtailment. Due to the intermittent and unstable characteristics of renewable energy As a result, the average annual utilization hours of large-scale wind power nationwide in 2014 were too low (average 1893h). The coordinated control of large-scale energy storage systems and renewable energy will enable large-scale wind and solar power stations to supply stable, reliable, and stable power to the receiving end power system, improve system operation safety, and enhance the power grid's ability to accept new energy generation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D20/02
CPCF28D20/026Y02E60/14
Inventor 王俊杰李路遥王思贤杨鲁伟邓章
Owner 中绿中科储能技术有限公司
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