Blast furnace gas diffusion tower double-path gas source automatic switching chain ignition control method and system
A blast furnace gas, automatic switching technology, applied in the direction of combustion control, pipeline system, combustion method, etc., can solve the problems of environmental pollution, poisoning and death accidents, etc., achieve the effect of reliable ignition system, ensuring stability, avoiding pollution and poisoning accidents
Pending Publication Date: 2022-05-27
SAINT GOBAIN PIPELINE SYST +1
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Problems solved by technology
[0005] In view of the above technical problems, the purpose of the present invention is to overcome the problem that the venting flare system in the prior art only uses one kind of gas as fuel, the most commonly used is pipeline natural gas. If the blast furnace gas is not fully burned, it will be discharged into the atmosphere, which may cause serious environmental pollution or even serious poisoning and death accidents. Therefore, a dual-channel redundant configuration and chain control of the ignition gas is provided during use. The ignition system is more reliable, and the method and system for interlocking ignition control method and system for automatic switching of two-way gas sources of the blast furnace gas release tower to avoid pollution and poisoning accidents caused by unignited combustion emissions of carbon monoxide
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[0055] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.
[0056] In the present invention, unless otherwise stated, the orientation words such as "upper, lower, inner, outer" included in a term only represent the orientation of the term under normal usage, or are understood by those skilled in the art and should not be viewed as a limitation of the term.
[0057] like figure 1 As shown, the present invention provides a dual-path gas source automatic switching interlock ignition control method for a blast furnace gas release tower, characterized in that the control method includes:
[0058] Step S101, detecting the pressure of the natural gas in the main pipeline that is fed into the ignition system; wherein,
[0059] Step S102...
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The invention discloses a blast furnace gas diffusion tower double-path gas source automatic switching chain ignition control method and system, and the control method comprises the steps: detecting the pressure of main gas introduced into an ignition system from a main pipeline; when the detected pressure value is smaller than a preset first pressure threshold value, a standby pipeline is switched to, and standby fuel gas is introduced into the ignition system again; and reducing the pressure of the introduced main fuel gas or standby fuel gas to a preset second pressure threshold value, introducing the fuel gas into the torch head, igniting the fuel gas, and discharging the diffused blast furnace gas after combustion treatment. The control method and system overcome the defects that in the prior art, a diffusion torch system only uses one kind of fuel gas as fuel, pipeline natural gas is most commonly used, and once the pipeline natural gas in a blast furnace factory is interrupted due to various reasons, diffused blast furnace gas is exhausted into the atmosphere after being not fully combusted, and the system is inconvenient to use. And serious environmental pollution and even serious poisoning death accidents can be caused.
Description
technical field [0001] The invention relates to the technical field of a blast furnace gas release tower torch system, in particular to a method and system for automatic switching of two-way gas sources of a blast furnace gas release tower for interlocking ignition control. Background technique [0002] The venting flare system is used as a safety measure for the venting of blast furnace gas. The flare system shall ensure that the vented gas generated by the related devices during startup, shutdown, normal state and accident state can be vented and burned in a timely, safe and reliable manner, and meet the relevant environmental protection requirements. The torch system is mainly composed of torch head, ignition gun, high-energy igniter, ignition cable, flame detection, control cabinet (including PLC and touch screen), valve group and instrument, etc. [0003] Since the commonly used flare system uses only one type of gas as fuel, the most commonly used is pipeline natural ...
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IPC IPC(8): F17D1/04F17D3/01F17D3/18F17D5/00F23G7/06F23G5/50F23N5/24
CPCF17D1/04F17D3/01F17D3/18F17D5/005F23G7/06F23G5/50F23N5/242Y02P10/143
Inventor 张翔
Owner SAINT GOBAIN PIPELINE SYST