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High-temperature duplex regeneration adiabatic compression air energy storage system

A technology of compressed air energy storage and high temperature, which is applied in the direction of liquid variable displacement machinery, steam engine device, multi-stage pump, etc., to achieve stable temperature control, reduce heat storage temperature difference, and increase heat storage temperature

Active Publication Date: 2018-03-06
中盐华能储能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-temperature compound regenerative adiabatic compressed air energy storage system to solve the problem of high-temperature heat storage and heat recovery in the existing adiabatic compressed air energy storage system, improve heat recovery efficiency, and reduce costs

Method used

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  • High-temperature duplex regeneration adiabatic compression air energy storage system
  • High-temperature duplex regeneration adiabatic compression air energy storage system

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Experimental program
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Embodiment 1

[0026] Such as figure 1 As shown, a single-stage compression, single-stage expansion high-temperature compound regenerative adiabatic compressed air energy storage system provided in this embodiment includes a high-temperature compressor unit 1, a gas storage chamber 2, a turbine generator unit 3, and a high-temperature regenerative cycle and medium temperature reheat cycle.

[0027] The high-temperature regenerative cycle includes a high-temperature cooler 5 , a high-temperature regenerator 6 , a high-temperature regenerator 7 and a high-temperature regenerator 4 . The heat exchange tube of the high-temperature cooler 5, the high-temperature regenerator 6, the heat-return tube of the high-temperature regenerator 7 and the high-temperature regenerator 4 are circularly connected;

[0028] The medium-temperature heat recovery cycle includes a medium-temperature cooler 9, a medium-temperature regenerator 10, a medium-temperature regenerator 11, and a medium-temperature regenerat...

Embodiment 2

[0043] This embodiment is basically the same as Embodiment 1. For the sake of brevity, in the description process of this embodiment, the same technical features as Embodiment 1 will not be described, and only the differences between this embodiment and Embodiment 1 will be described:

[0044] Such as figure 2 As shown, it is a dual-stage compression, dual-expansion high-temperature compound regenerative adiabatic compressed air energy storage system provided in this embodiment. Among them, the high-temperature compressor unit includes a multistage air compressor; the turbogenerator unit includes a multistage turboexpander and a generator.

[0045] In this embodiment, the high temperature compressor set includes a primary air compressor 18 and a secondary air compressor 19 ; the turbogenerator set includes a primary turbo expander 21 and a secondary turbo expander 22 .

[0046] The high-temperature cooler includes a first-level high-temperature cooler 23 and a second-level h...

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Abstract

The invention provides a high-temperature duplex regeneration adiabatic compression air energy storage system. The system comprises a high-temperature compression unit, an air storage chamber, a turbine generator set, a high-temperature cooler, a high-temperature heat storer, a high-temperature regenerator, a high-temperature cold storer, a medium-temperature cooler, a medium-temperature heat storer, a medium-temperature regenerator and a medium-temperature cold storer; a heat exchange pipe of the high-temperature cooler, the high-temperature heat storer, a regeneration pipe of the high-temperature regenerator and the high-temperature cold storer are circularly connected; the heat exchange pipe of the medium-temperature cooler, the medium-temperature heat storer, a regeneration pipe of themedium-temperature regenerator and the medium-temperature cold storer are circularly connected; and the high-temperature compression unit, an intake pipe of the high-temperature cooler, an intake pipe of the medium-temperature cooler, the air storage chamber, an intake pipe of the medium-temperature regenerator, an intake pipe of the high-temperature regenerator and the turbine generator set areconnected in sequence. The gradient recovery and the duplex regeneration are performed on compression set by using high-temperature regeneration circulation and medium-temperature regeneration circulation, so that the heat storage temperature and the regeneration efficiency are improved; the heat storage temperature difference and the cost relative to single heat storage medium are reduced; and the temperature control is stable.

Description

technical field [0001] The invention relates to the technical field of compressed air energy storage, in particular to a high-temperature compound regenerative heat-insulation compressed air energy storage system. Background technique [0002] Compressed air energy storage technology uses air as an energy storage medium to store low-peak power or renewable energy grid-connected limited power. The traditional compressed air energy storage system uses an air compressor to compress the air into the air storage chamber for storage. When power generation is required, the high-pressure air is released to be mixed with fossil fuels for combustion, and the mixed products after combustion are used to drive the turbo expander to do work and drive power generation. machine output power. Due to the need to burn fossil fuels, there are certain restrictions on the system, and considering the current energy strategy and environmental protection requirements, an adiabatic compressed air en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K7/02F01D15/10F04B25/00
CPCF01D15/10F01K7/02F04B25/00
Inventor 梅生伟陈来军薛小代
Owner 中盐华能储能科技有限公司
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