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Combustion Diagnosis Method of Heating Furnace Based on Temperature Distribution

A technology of temperature distribution and diagnosis method, which is applied in the directions of temperature recording method, radiation pyrometry, hot spot detection, etc., can solve the problem of flame feature extraction, flame feature analysis is difficult to achieve, the spatial temperature distribution and flame gradient distribution cannot be measured, and cannot be effectively Judging the combustion state of the heating furnace and other issues, to achieve the effect of solving technical bottlenecks and real-time monitoring of operating efficiency

Active Publication Date: 2018-10-12
安徽淮光智能科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, natural gas is generally used as fuel in heating furnaces, and the flame is invisible under normal circumstances, so it is difficult to achieve flame feature extraction and flame feature analysis by this method, and this method cannot measure the spatial temperature distribution and flame gradient distribution, so it cannot effectively judge the combustion of the heating furnace state

Method used

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  • Combustion Diagnosis Method of Heating Furnace Based on Temperature Distribution
  • Combustion Diagnosis Method of Heating Furnace Based on Temperature Distribution
  • Combustion Diagnosis Method of Heating Furnace Based on Temperature Distribution

Examples

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Effect test

Embodiment 1

[0022] Such as figure 1 As shown, the present invention provides a heating furnace combustion diagnosis method based on temperature distribution. The radiation transmittance of high-temperature flue gas is calculated according to the target infrared radiation received by the detector pixel in the heating furnace under the same temperature condition. The relationship between the change of radiation transmittance of high-temperature flue gas in the infrared band and the combustion efficiency of natural gas, and the combination of flame shape characteristics to directly reflect the combustion state in the heating furnace; use the infrared temperature measuring device to measure the target surface temperature of the heating furnace as a boundary condition to solve the problem Calculate the space temperature in the heating furnace, obtain the horizontal space temperature distribution and longitudinal temperature gradient of the heating furnace through the space temperature, judge th...

Embodiment 2

[0025] Study the radiation spectrum of carbon dioxide and water vapor in the high-temperature flue gas at the burner of the heating furnace, find the radiation window with a large infrared radiation transmittance, and combine the spectral response characteristics of the near-infrared detector to determine the optimal filtering center wavelength, so as to obtain the maximum flame form. The flame shape directly reflects the air distribution of the burner. If the air distribution to the burner is good, the transmittance is high, the combustion efficiency is high and the flame is invisible; if the air distribution to the burner is not good, the transmission rate is low, the combustion efficiency is low, and the flame is visible and invisible. Sway with the wind.

[0026] Use the infrared temperature measuring device to measure the target surface temperature of the heating furnace. Since the target to be measured is in a high-temperature combustion furnace environment, there are to...

Embodiment 3

[0035] Such as figure 2 As shown, the infrared temperature measuring device is used to measure the target surface temperature of the heating furnace. The infrared temperature measuring device includes a temperature monitoring high temperature lens, an infrared filter, an infrared detector and a calculation and analysis diagnosis module connected in sequence. The infrared detection The infrared monitoring probe of the detector is directly installed on the side wall or top of the furnace body through a sealed connection mechanism. The infrared radiation signal inside the furnace first passes through the temperature monitoring high-temperature lens, and then forms an electrical signal on the infrared detector after being filtered by an infrared filter. The data is analyzed and processed through the calculation and analysis diagnosis module through the cable transmission to the industrial computer. The calculation and analysis diagnosis module calculates the target surface tempera...

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Abstract

The present invention disclosed a method of combustion furnace based on temperature distribution. According to the same temperature conditions, the detector is like the target infrared radiation calculation rate received by the detector to determine the combustion efficiency in combination with the flame form;The temperature field analyzes the operating efficiency of heating furnace according to the uniformity of the temperature distribution of the horizontal space and the change of the vertical temperature gradient change, and monitor the operating status of the heating furnace.The method provided by the present invention can effectively solve the technical problem of online detection of the combustion of the heating furnace and the operating status of the device.

Description

technical field [0001] The invention belongs to the field of measurement and control of combustion conditions of heating furnaces, especially the technical field of temperature measurement and production control of heating furnaces in related industries such as metallurgy, chemical industry, petrochemical industry, nonferrous metals, etc., and specifically relates to a method for diagnosing combustion of heating furnaces based on temperature distribution. Background technique [0002] At present, domestic metallurgy, chemical industry, petrochemical industry, non-ferrous metals and other industries lack accurate, stable and reliable diagnostic methods for the combustion state of heating furnaces, and mainly rely on judgments such as local temperature, combustion gas emissions, manual experience, and product quality. Scarcity, lack of real-time and continuity, and low accuracy and reliability, resulting in the inability to achieve fine control of the heating furnace operation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J5/00
CPCG01J5/0066G01J5/48
Inventor 唐磊冯俊生熊丹枫毕玉李大创蒋杉舒志峰赵晓虎吴海滨仓亚军刘纯红
Owner 安徽淮光智能科技有限公司
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