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Liquid compressed air energy storage peak regulation system and method capable of realizing gradient utilization of steam heat

A technology for compressed air energy storage and heat, applied in separation methods, liquid degassing, steam generation, etc., can solve problems such as low energy efficiency, improve operating efficiency, and avoid irreversible losses.

Pending Publication Date: 2020-12-11
XIAN THERMAL POWER RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of low energy efficiency in the overall operation of the existing liquid compressed air energy storage system, and to provide a coal-fired generating set coupling liquid compressed air energy storage peak-shaving system and method that can realize cascade utilization of steam heat

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  • Liquid compressed air energy storage peak regulation system and method capable of realizing gradient utilization of steam heat

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Embodiment Construction

[0030] 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.

[0031] 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 compressed air energy storage peak regulation system and method capable of realizing gradient utilization of steam heat. The liquid compressed air energy storage peakregulation system comprises a plurality of low-pressure heaters and a plurality of high-pressure heaters; exhaust steam of a low-pressure cylinder in a coal-fired generator set enters a condenser forheat exchange, sequentially passes through of the multiple low-pressure heaters after passing through a condensate pump, sequentially passes through a deaerator and a water feeding pump, sequentiallyenters of the multiple high-pressure heaters and then returns to a boiler in the coal-fired generator set; each section of extracted steam of a high-pressure cylinder in the coal-fired generator set is respectively introduced into the corresponding high-pressure heater; each section of extracted steam of the low-pressure cylinder is respectively introduced into the corresponding low-pressure heater; and third-stage extracted steam of a medium-pressure cylinder is introduced into the last low-pressure heater from the condensate pump to the deaerator, second-stage extracted steam is introduced into the deaerator, and first-stage extracted steam is introduced into an air heater, and enters the first high-pressure heater from the deaerator to the boiler after heat exchange.

Description

【Technical field】 [0001] The invention belongs to the technical field of liquid compressed air energy storage, and relates to a liquid compressed air energy storage peak-shaving system and method, in particular to a coal-fired generating set coupled liquid compressed air energy storage peak-shaving system that can realize cascade utilization of steam heat. method. 【Background technique】 [0002] Energy storage technology is one of the effective means to promote the consumption of renewable energy and ensure the safe and stable operation of the power grid. At present, the relatively mature energy storage technologies mainly include pumped hydro storage, compressed air energy storage and electrochemical energy storage. Among them, compressed air energy storage, especially liquid compressed air energy storage, has the advantages of large capacity, low cost, and flexible layout. It is a large-scale energy storage technology with a prospect of popularization and application. Ho...

Claims

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Application Information

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IPC IPC(8): F01K7/22F01K7/40F01K7/38F01K7/44F01D15/10F22D1/50F04B41/02F01K1/04F01K3/14F01B23/10
CPCF01B23/10F01D15/10F01K1/04F01K3/14F01K7/22F01K7/38F01K7/40F01K7/44F04B41/02F22D1/50Y02E60/16
Inventor 居文平王妍马汀山吕凯张建元黄嘉驷林轶王东晔郑天帅刘学亮杨利
Owner XIAN THERMAL POWER RES INST CO LTD
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