Control system and method for steady-value voltage stabilization of mixed gas

A technology for mixing coal gas and control system, which is applied in combustion methods, gaseous fuel pretreatment, lighting and heating equipment, etc., can solve the problems of inability to meet user process production requirements, large fluctuations in pressure and calorific value, and low qualified rate of finished products. , to achieve the effect of reducing production cost and environmental pollution, stable pressure and calorific value, and high utilization rate

Inactive Publication Date: 2018-12-18
BERIS ENG & RES CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This kind of control system has the disadvantages of single function, unable to meet the complex and tense process production needs of users, large fluctuations in pressure and calorific value, low qualified rate of finished products, waste of fuel and pollution of the environment, etc.

Method used

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  • Control system and method for steady-value voltage stabilization of mixed gas
  • Control system and method for steady-value voltage stabilization of mixed gas

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0029] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinatio...

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Abstract

The invention discloses a control system and a method for the steady-value voltage stabilization of the mixed gas. The control system comprises a coke oven gas source and a blast furnace gas source, the coke oven gas source and the blast furnace gas source are connected with a first caliber branch and a second caliber branch which are connected in parallel through corresponding supply branches, the first caliber branch and the second caliber branch are merged to form a mixed branch; flow meters and flow regulating valves are arranged on the first caliber branch and the second caliber branch, aheat value instrument is arranged on the coke oven gas source and the blast furnace gas source supply branch and the mixing branch. According to the control system, a given amount of a flow regulating valve on each caliber branch is controlled through a mode of combining feedforward control with a double-closed-loop ratio control system, so as to adjust the heat value and the pressure of the mixed gas.

Description

technical field [0001] The invention relates to a control system and method for stabilizing the heat value and voltage of mixed gas. Background technique [0002] The iron and steel industry will produce a large number of by-products in the production process of ironmaking, steelmaking and coking - blast furnace gas, converter gas and coke oven gas. The by-product gas is recycled and used as fuel for waste heat power generation, lime kiln, heating furnace and other process equipment. Because the calorific value of the by-product gas does not match the calorific value required by the process, the industry generally adopts the method of gas mixing to deliver mixed gas with stable calorific value and pressure to the process production unit. [0003] The traditional mixing station simply takes the calorific value of the mixed gas as the controlled parameter, mixes the gas with low calorific value and gas with high calorific value in a certain proportion, and finally delivers it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23K5/00
CPCF23K5/002F23K2400/201
Inventor 穆桐田媛
Owner BERIS ENG & RES CORP
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