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Boiler/drying oven hearth flameout automatic detection method and automatic protective system

An automatic protection and automatic detection technology, applied in the direction of control/regulation system, combustion method, general control system, etc., can solve the problems of time delay, loss of monitoring meaning, time lag of accidents, etc., and achieve the effect of automatic control

Inactive Publication Date: 2009-08-19
天津市三特电子有限公司
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Problems solved by technology

Since there will be a certain time delay in monitoring the temperature drop, this will cause a serious delay in the time to deal with the accident on site, thus losing the significance of monitoring

Method used

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  • Boiler/drying oven hearth flameout automatic detection method and automatic protective system
  • Boiler/drying oven hearth flameout automatic detection method and automatic protective system
  • Boiler/drying oven hearth flameout automatic detection method and automatic protective system

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Embodiment Construction

[0035] The boiler / drying furnace furnace flame-out automatic detection method and automatic protection system of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0036] Such as figure 1 Shown, boiler / drying furnace hearth flame flameout automatic detection method of the present invention comprises the following steps:

[0037] 1) Determine whether the cooling water, cooling air and system power used to cool the probe cover are normal, if normal, perform step 3), if not normal, perform step 2) (S10 stage);

[0038] 2) The system sends out an alarm signal (S20 stage), and at the same time manually eliminates the system failure (S30 stage);

[0039] 3) The probe cover enters the furnace cavity (S40 stage);

[0040] 4) Collect images through the camera probe in the probe cover, and analyze the collected images (S50 stage);

[0041] 5) Judging whether the length and intensity of the flame are normal according to the obtaine...

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Abstract

The invention discloses a method for automatically detecting the flameout of the flame in the hearth of a boiler / drying furnace, and a protection system. The protection system comprises a camera probe which can monitor the working conditions in the furnace; a gas, water and electricity field control box; an alarm control box which is used for generating alarm signals and withdraws the cover of the probe out of the hearth when the working temperature of the cooled water, cooled gas and probe of the system is unusual; and a flameout automatic protection unit which is used for moving the transmission device of the probe sleeve, judging the intensity and length of the flame according to the collected video image, emitting the alarm signal when the flame is unusual and outputting the control signal to the electric control system of the boiler / drying furnace. The automatic protection system for the flameout of the flame can carry out video monitoring to a plurality of flames in the furnace simultaneously, carries out the analysis to the videos, automatically measures the length of the flame, carries out the feedback output of the signal according to the intensity of the flame, realizes the automatic protection alarming when flameout, provides the control signal to the control system of the equipment and realizes the intelligentization of video monitoring.

Description

technical field [0001] The invention relates to the technical field of boilers / drying furnaces, in particular to an automatic detection method and automatic protection system for boiler / drying furnace flame extinguishment. technical background [0002] Flame combustion monitoring equipment is ancillary equipment for metallurgy, coal, petrochemical industries and thermal power generation, mainly for the fields using flame burners. Taking a large power plant boiler as an example, the pulverized coal combustion process in the furnace is a complex physical and chemical process that takes place in a large space. The boiler requires a stable and uniform flame in the furnace to ensure strong and sufficient combustion, minimize the number of times of fuel injection and combustion due to unstable combustion, prevent furnace deflagration and other accidents caused by furnace fire extinguishing, and control it according to needs. The combustion flame is the most direct and rapid refle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23M11/04G01J1/38G01B11/02G05B19/048
Inventor 刘士达孙志勇
Owner 天津市三特电子有限公司
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