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Low-temperature and high-pressure liquid air energy storage system

A technology of energy storage system and liquid air, applied in liquid variable capacity machinery, heat storage equipment, lighting and heating equipment, etc., can solve the problems of liquid air loss, return air loss, etc., to achieve efficiency improvement and low energy consumption , the effect of simple system structure

Inactive Publication Date: 2018-01-05
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, during the energy storage process, the air enters the two-phase region after being throttled by the throttle valve, and there is a part of backflow air loss, so the obtained liquid air is lost

Method used

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  • Low-temperature and high-pressure liquid air energy storage system

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Embodiment Construction

[0018] In order to facilitate understanding of the present invention, the present invention will be described more fully below. Preferred embodiments of the present invention are given in the following examples. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that a thorough and complete understanding of the present disclosure is provided.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.

[0020] see figure 1 , the present invention provides a low-temperature high-pressure liquid air energy storage system, which includes a drive motor...

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Abstract

The invention discloses a low-temperature and high-pressure liquid air energy storage system. The system comprises a drive motor, a compressor unit, a cooler unit, a cold accumulator, a liquid air storage tank, a throttle valve, a heater unit, an expansion unit and a power generator. The drive motor, the compressor unit, the cooler unit, the cold accumulator and the liquid air storage tank are sequentially connected to form an energy storage channel. The liquid air storage tank, the throttle valve, the cold accumulator, the heater unit, the expansion unit and the power generator are sequentially connected to form an energy releasing channel. According to the system, air is stored in the liquid storage tank in a high-pressure and low-temperature liquid state manner, limitation from the geographical environment is avoided, and the energy storage density is high; the liquefaction ratio of the system can theoretically reach 100%, backflow gas losses are avoided, and the energy storage efficiency is further improved; and in addition, the system is more simple in structure and low in energy consumption.

Description

technical field [0001] The invention relates to the technical field of electric power storage, in particular to a low temperature and high pressure liquid air energy storage system. Background technique [0002] With the rapid development of society, the use and dependence of human beings on electrical energy has become more and more important. Electric energy belongs to secondary energy, which is converted from other forms of energy, mainly thermal power, hydropower, nuclear power, wind power, solar power and so on. At present, the largest proportion of power generation is fossil energy such as coal and natural gas. However, due to the non-renewable nature of fossil energy, resources will be exhausted. With the popularization and utilization of renewable energy, environmentally friendly power generation forms have gradually matured. However, due to the intermittent and anti-peaking characteristics of renewable energy, it has been difficult to achieve large-scale centralize...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B41/02F01D17/10F28D20/02
CPCY02E60/14Y02E60/16
Inventor 王俊杰邓章安保林杨鲁伟陈嘉祥张涛
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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