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Closed cooling and power combined energy storage system

A technology of combined cooling and power supply and energy storage system, which is used in refrigerators, refrigeration and liquefaction, steam engine installations, etc., and can solve the problems of low system circulation efficiency and inability to provide cooling capacity.

Inactive Publication Date: 2016-08-17
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing compressed air energy storage technologies are open cycles, and cannot provide cooling capacity, and the system cycle efficiency is not high

Method used

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  • Closed cooling and power combined energy storage system

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Embodiment Construction

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0029] In the description of the present invention, the orientation or positional relationship indicated by the terms "inner", "outer", "longitudinal", "transverse", "upper", "lower", "top", "bottom" etc. are based on the drawings The orientations or positional relationships shown are only for the convenience of describing the invention and do not require the invention to be constructed and operated in a specific orientation, and thus should not be construed as limitations on the invention.

[0030] see figure 1 , is a schematic structu...

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Abstract

The closed-type combined cooling and power energy storage system provided by the present invention includes: an energy storage unit, a heat recovery unit and an energy release unit, the energy storage unit includes an air bag, a compressor unit, and an air storage tank; the heat recovery unit includes All levels of compressor interstage coolers, cold oil tanks, hot oil tanks, and turboexpander interstage regenerators at all levels; the energy release unit includes speed control valves, turboexpander units, reducers, generators, grid-connected Control cabinet and cold air air conditioner, the whole system is a closed cycle system, which does not require external air supply, which reduces the process of air drying and purification, equipment investment and energy consumption, and simultaneously outputs cooling capacity to the outside, making full use of the cooling capacity of the exhausted air after expansion. Exergy realizes combined cooling and power supply, improves the efficiency of the system, and realizes the conversion of unstable and intermittent wind energy into stable electrical energy and cooling output.

Description

technical field [0001] The invention relates to the field of energy conversion and storage, in particular to a closed cooling and power cogeneration energy storage system. Background technique [0002] Wind energy accounts for 42% of all renewable energy globally. At the same time, wind power technology also has a relatively large advantage in various renewable energy distributed power generation technologies in terms of technical maturity and economic benefits, so it is the fastest-growing new energy distributed power generation technology in the world. According to the prediction of China Renewable Energy Industry Association, by the end of 2020, the total installed capacity of wind power in China will exceed 300GW. [0003] However, because wind energy is affected by natural conditions such as weather, geographical location, and airflow changes, it has the characteristics of great uncertainty, randomness, and intermittency. Costs have a huge impact. With the increasing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K7/22F01D15/10F01D15/08F25B27/00
CPCF01K7/22F01D15/08F01D15/10F25B27/00
Inventor 季伟孙郁张武
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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