Liquid-state compressed air energy storage peak regulation system and method coupled with heat supply system

A compressed air energy storage and heating system technology, applied in heating systems, hot water central heating systems, heating methods, etc., can solve the problems of high operating costs and low energy storage efficiency, so as to improve operating efficiency and reduce energy consumption. Consumption, reduce the effect of heating extraction steam flow

Active Publication Date: 2020-12-18
XIAN THERMAL POWER RES INST CO LTD +1
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  • Abstract
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  • Application Information

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Problems solved by technology

However, the overall energy storage efficiency of the conventional liquid compressed air energy storage system is low and the operating cost is high

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  • Liquid-state compressed air energy storage peak regulation system and method coupled with heat supply system

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Embodiment Construction

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0024] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention discloses a liquid-state compressed air energy storage peak regulation system and method coupled with a heat supply system. Air compression heat of a liquid-state compressed air energy storage system is recovered through the heat supply system. In a heating season, the air compression heat is used for primarily heating circulating water of a heat supply network, and heat supply steamextraction flow of a unit is reduced; and in a non-heating season, condensed water is used for recycling the air compression heat, so that the energy consumption of the unit is reduced. Through coupling of a coal-fired unit heat supply system and the liquid-state compressed air energy storage system, the overall operation efficiency of the system is improved. Compared with a conventional liquid-state compressed air energy storage peak regulation system with a heat storage device, an air cooler is adopted to recover the air compression heat to a unit thermodynamic cycle, and configuration of the heat storage system is canceled. The operation efficiency of the whole system is effectively improved, and the overall engineering investment is reduced.

Description

【Technical field】 [0001] The invention belongs to the technical field of comprehensive utilization of thermal energy, and relates to a liquid compressed air energy storage peak-shaving system and method coupled with a heating system. 【Background technique】 [0002] In response to the gradual depletion of fossil fuels and the environmental problems caused by them, renewable energy power generation represented by wind energy and solar energy has developed rapidly in recent years. The large-scale integration of renewable energy generation with volatility and randomness puts forward higher requirements for the power grid's peak-shaving and valley-filling, safe and stable operation. Building large-scale energy storage devices to improve the flexibility and safety of power system operation is an effective way to solve the problem of high proportion of new energy consumption. [0003] At present, large-scale energy storage technologies mainly include pumped hydro storage, compress...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K7/44F01K7/40F01K7/38F01K7/22F04B41/02F04B39/06F01K1/04F01K3/14F01B23/10F24D3/00F24D19/10
CPCF01K7/44F01K7/40F01K7/38F01K7/345F01K7/22F04B41/02F04B39/06F01K1/04F01K3/14F01B23/10F24D3/00F24D19/1015Y02E60/16
Inventor 王妍居文平吕凯马汀山张建元黄嘉驷王东晔郑天帅刘学亮杨利林轶
Owner XIAN THERMAL POWER RES INST CO LTD
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