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Heating furnace combustion optimization control system

A control system and combustion optimization technology, applied in the field of metallurgy, can solve problems such as single conditions, fluctuations, and low control precision

Pending Publication Date: 2021-01-05
武汉钢铁有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, various atmospheric conditions are constantly fluctuating in the actual mass production process
At present, most of the major fuel furnaces adjust and control the air supply by manually setting the air-fuel ratio in the computer control system of the furnace, and the control is based on a single condition, and the control accuracy is low, which cannot be well adapted to the changing scene production environment

Method used

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  • Heating furnace combustion optimization control system
  • Heating furnace combustion optimization control system
  • Heating furnace combustion optimization control system

Examples

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Embodiment

[0039]Seefigure 1 ,figure 1 It shows a schematic structural diagram of a heating furnace combustion optimization control system 100 provided by an embodiment of the present invention, which is used to control the air flow of the heating furnace 1.

[0040]Specifically, the heating furnace combustion optimization control system 100 includes: an air regulating valve 3, a gas flow valve 4, a gas flow meter 5, an air flow meter 6, a gas composition online detector 7, a controller 8, and flue gas CO2Online detector 9. The air flow meter 6 and the air regulating valve 3 are arranged on the air pipeline in sequence along the air flow direction, and the gas composition online detector 7, the gas flow meter 5 and the gas flow valve 4 are arranged on the gas pipeline in sequence according to the gas flow direction. Flue gas CO2The online detector 9 is arranged at the entrance of the tail flue of the heating furnace 1. Both the air pipe and the gas pipe are connected to the burner 2. Air regulati...

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Abstract

The invention discloses a heating furnace combustion optimization control system which comprises an air regulating valve, a gas component online detector, a gas flow meter, a flue gas CO2 online detector and a controller. The controller is configured to acquire a gas flow detected by the gas flow meter, gas components detected by the gas component online detector, a content of CO2 in a heating furnace detected by the flue gas CO2 online detector and a current time of acquiring the data at present, configured to acquire a first air flow according to the gas flow and the gas components, configured to adjust the flow of the air regulating valve into the first air flow after delaying based on the current time, and further configured to make a feedback adjustment on the air regulating valve toacquire a second air flow according to the first air flow and the CO2 content, thereby further improving the adjustment precision in the feedback adjustment. The heating furnace combustion optimization control system accurately controls the air flow of the heating furnace, thereby reducing emission and saving energy.

Description

Technical field[0001]The invention relates to the technical field of metallurgy, in particular to a combustion optimization control system for a heating furnace.Background technique[0002]The fuel furnace releases chemical heat through fuel combustion to provide heat to heat the workpiece. The control of the combustion air supply during the combustion process directly affects the energy utilization efficiency and harmful CO, NO.XEmission level, heating atmosphere and product quality in the furnace and other technical and economic indicators are a core control content in fuel combustion control. Usually the amount of fuel supplied for combustion is determined according to furnace temperature and process requirements, while the amount of air required for fuel combustion is adjusted according to the air-fuel ratio. The air-fuel ratio is the ratio of the amount of air supplied for combustion to the amount of fuel. Excessive air supply will cause energy waste, lower combustion temperature...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23N5/00F23N1/02
CPCF23N5/003F23N1/022
Inventor 丁翠娇陈超曹炳雷刘刚锋刘占增
Owner 武汉钢铁有限公司
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