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Method and system for storing energy by compressing metallurgical gas

A gas and metallurgical technology, applied in the field of energy storage in metallurgical enterprises, can solve the problems of no economic value and social value of electric energy, and utilization of peak and valley characteristics of electric power demand.

Pending Publication Date: 2021-01-15
张俊哲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, iron and steel enterprises have not made full use of the peak and valley characteristics of power demand, and have not maximized the economic and social value of electric energy.

Method used

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  • Method and system for storing energy by compressing metallurgical gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] See figure 1 As shown, the method for compressing metallurgical gas energy storage provided by the embodiment of the present invention:

[0050] S101, during the valley electricity period, use a gas compressor to compress the metallurgical gas and store it in a gas compression container;

[0051] S102. During the peak power or flat power period, the compressed metallurgical gas is released from the gas compression container and enters the gas expansion generator set for power generation.

[0052]According to the embodiment of the present invention, during the off-peak power period, the gas compressor is used to compress the metallurgical gas and store it in the gas compression container; during the peak power or flat power period, the compressed metallurgical gas is released from the gas compression container, Enter the gas expansion generator set for power generation. In this way, gas compressors are used to compress and store the excess gas in the gas cabinets of ir...

Embodiment 2

[0074] Since the system for compressing metallurgical gas energy storage provided by the present invention corresponds to the specific implementation of the aforementioned method for compressing metallurgical gas energy storage, the system for compressing metallurgical gas energy storage can realize this by performing the process steps in the specific implementation of the above method. The purpose of the invention, therefore, the explanations in the specific embodiments of the method for compressing metallurgical gas energy storage are also applicable to the specific embodiments of the system for compressing metallurgical gas energy storage provided by the present invention, so in the following specific embodiments of the present invention will be No longer.

specific Embodiment approach

[0076] The low-pressure gas compressor motor 1 is used to convert the low-cost electric energy of the grid into mechanical energy during the off-peak period, and then drive the low-pressure gas compressor 2 to compress the metallurgical gas and store it in the low-pressure gas container 3; similarly, the high-pressure gas compressor The electric motor 4 is used to convert the low-cost electric energy of the grid into mechanical energy during the off-peak period, and then drive the high-pressure gas compressor 5 to further compress the metallurgical gas and store it in the high-pressure gas container 6 . During the peak electricity period, open the valve 7, send the high-pressure gas into the expander 8 to do work, and then drive the generator 9 to generate electricity; similarly, the low-pressure gas that has been expanded from the 8 is sent to the expander 10 to do work, and then drives the power generation The generator 11 generates power; the gas stored in the low-pressure g...

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Abstract

The invention provides a method and a system for storing energy by compressing metallurgical gas. The method and the system are beneficial to improving the gas recovery rate of ferrous metallurgy enterprises, reducing the occupied area of gas storage facilities and reducing the power consumption cost of the enterprises. The method comprises the following steps that compressing is carried out on the metallurgical gas by adopting a compressor and the compressed metallurgical gas is stored in a gas compression container in an off-peak electricity period; and in the peak electricity or flat electricity period, the compressed metallurgical gas is released from the gas compression container and enters an expansion generator for power generation. The system comprises a gas compressor and a expansion generator set and; the gas compressor is used for compressing the metallurgical gas and storing the compressed metallurgical coal gas in the gas compression container in the off-peak electricity period; and in the peak electricity or flat electricity period, the compressed gas stored in the gas compressor electricity period is fed into the expansion generator set from the gas compression container for power generation. The method and the system are suitable for the technical field of metallurgical enterprise energy storage.

Description

technical field [0001] The invention relates to the technical field of energy storage in metallurgical enterprises, in particular to a method and system for compressing metallurgical gas energy storage. Background technique [0002] During the production process of iron and steel metallurgical enterprises, a large amount of gas will be produced, which is an important secondary energy source for iron and steel enterprises. Its types mainly include blast furnace gas (Blast Furnace Gas, referred to as BFG), coke oven gas (CokeOven Gas, referred to as COG) and converter gas (Lindz-Donawitz Gas, referred to as LDG). Part of the gas is directly used in blast furnace hot blast stoves, coking furnaces, heating furnaces, equipment baking and various heat treatment furnaces in the enterprise, and most of the remaining gas is sent to self-provided power plant boilers for combustion for power generation. [0003] According to statistics from the China Iron and Steel Industry Associatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B41/02F01K27/00F01B23/10
CPCF04B41/02F01K27/00F01B23/10Y02E60/16
Inventor 不公告发明人
Owner 张俊哲
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