Deep-cold liquefied air energy-storage and power generation system and start-stop control method thereof

A technology of liquefied air and power generation system, applied in refrigeration and liquefaction, liquefaction, solidification and other directions, can solve the problem of unable to realize automatic stop, unable to start automatically, etc.

Active Publication Date: 2018-09-28
NORTH CHINA ELECTRICAL POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] In order to solve the problem that the existing cryogenic liquefied air energy storage system cannot be automatically started in the full stop state, cannot be automatically stopped in the running state, and req

Method used

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  • Deep-cold liquefied air energy-storage and power generation system and start-stop control method thereof
  • Deep-cold liquefied air energy-storage and power generation system and start-stop control method thereof
  • Deep-cold liquefied air energy-storage and power generation system and start-stop control method thereof

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Embodiment Construction

[0131] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0132] The cryogenic liquefied air energy storage power generation system is in the development and application stage of cutting-edge technology in my country, which generally includes air intake and air compressor subsystems, air purification and booster subsystems, booster turbo expanders and liquid-air subsystems, and circulation fans Subsystems, cold and heat storage and main and auxiliary cooling subsystems, cryogenic pump subsystems and air expansion power...

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Abstract

The invention provides a deep-cold liquefied air energy-storage and power generation system and a start-stop control method thereof. The system comprises an air inlet and air compression machine subsystem, an air purification and pressurization machine subsystem, a booster expansion turbine and liquid air subsystem, a deep cold pump subsystem, an air expansion power generation subsystem, a circulating fan subsystem, an energy and heat storage and cooling subsystem and multiple pipelines. The subsystems are connected through the pipelines, so that the automatic start-stop control of the deep-cold liquefied air energy-storage and power generation system during an energy storage stage, and the automatic start-stop control of the system during an energy release stage can be realized.

Description

technical field [0001] The invention relates to the technical field of energy storage power generation, in particular to a cryogenic liquefied air energy storage power generation system and a start-stop control method thereof. Background technique [0002] The cryogenic liquefied air energy storage power generation system is divided into two stages, namely the energy storage stage and the energy release stage. The function of the energy storage stage is to store the abundant electric energy in the form of cryogenic liquefied air through compressors and cryogenic liquefaction equipment; the function of the energy release stage is to make the liquefied air absorb heat and evaporate to form The high-pressure air drives the expansion generator set to generate power. However, in the energy storage stage (or energy release stage), the existing cryogenic liquefied air energy storage power generation system cannot realize the automatic start-up of the cryogenic liquefied air energy...

Claims

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Application Information

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IPC IPC(8): F25J1/02
CPCF25J1/0228
Inventor 任彦黄葆华刘双白赵宁王维萌张春雷
Owner NORTH CHINA ELECTRICAL POWER RES INST
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