Method and system for compressing metallurgical gas for energy storage and for power generation through combustion

A technology of combustion power generation and gas, which is applied in the direction of fuel oil system, combustion engine, internal combustion piston engine, etc., and can solve the problems of unutilized power demand peak and valley characteristics, no economic value and social value of electric energy, etc.

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 compressing metallurgical gas for energy storage and for power generation through combustion
  • Method and system for compressing metallurgical gas for energy storage and for power generation through combustion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] See figure 1 As shown, the energy storage method for compressing metallurgical gas provided by the embodiment of the present invention:

[0056] S101, during the valley electricity period, use a gas compressor to compress the metallurgical gas and store it in a gas compression container;

[0057] S102, releasing the compressed metallurgical gas from the gas compression container during the peak power or flat power period, and entering the gas expansion generator set for power generation;

[0058] S103, the metallurgical gas after expansion and power generation is sent to the gas generator set for combustion and power generation.

[0059] 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 e...

Embodiment 2

[0086] Since the system for compressing metallurgical gas for energy storage and combustion for power generation provided by the present invention corresponds to the specific implementation of the aforementioned method for compressing metallurgical gas for energy storage and combustion for power generation, the system for compressing metallurgical gas for energy storage and combustion for power generation can be specifically implemented by implementing the above method The purpose of the present invention is achieved by the process steps in the embodiment, so the explanations in the specific implementation of the method for compressing metallurgical gas energy storage and burning power generation are also applicable to the system for compressing metallurgical gas energy storage and burning power generation provided by the present invention Specific implementation manners, therefore, details will not be repeated in the following specific implementation manners of the present inve...

specific Embodiment approach

[0088] 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 generator 11 to generate power; the gas stored in the low-pressure gas...

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PUM

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Abstract

The invention provides a method and a system for compressing metallurgical gas for energy storage and power generation through combustion. The method and the system are beneficial to improving the gasrecovery 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 in the off-peak electricity period, compressing is carried out on the metallurgical gas by adopting a gas compressor and the compressed metallurgical gas are stored in a gas compression container; in the peak electricity or flat electricity period, the compressed metallurgical gas is released from the gas compression container and firstly enters an expansion generator set for power generation, and the metallurgical gas obtained after expansion power generation is fed into a gas generator set for power generation through combustion; or in the peak electricity or flat electricity period, the compressed metallurgical coal gas is released from the coal gas compression container and directly fed into the gas generator set for power generation through combustion. The system comprises agas compressor, the expansion generator set and the gas generator set, the gas compressor is used for compressing the metallurgical gas and storing the compressed metallurgical gas in the gas compression container in the off-peak electricity period; the expansion generator set is used for sending the compressed gas stored in the off-peak electricity period into the expansion generator set from thegas compression container to generate electricity in the peak electricity period or the flat electricity period; and the gas generator set combusts the metallurgical gas subjected to expansion powergeneration for combustion power generation in the peak electricity period or the flat electricity period. The method and the system are suitable for the technical field of metallurgical enterprise energy storage and power generation.

Description

technical field [0001] The invention relates to the technical field of energy storage and power generation in metallurgical enterprises, in particular to a method and system for compressing metallurgical gas for energy storage and combustion for power generation. 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B41/02F04B41/06F01D15/10F02B43/10F02B63/04F02C6/14
CPCF01D15/10F02B43/10F02B63/04F02C6/14F04B41/02F04B41/06Y02E60/16Y02T10/30
Inventor 不公告发明人
Owner 张俊哲
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