CCD-based intelligent soot blowing system for formed soot and bonded slag on boiler heating surface

A soot blowing system and heating area technology, applied in the field of intelligent soot blowing system based on CCD boiler heating area ash slagging, can solve problems such as blind soot blowing, unsatisfactory monitoring of ash deposits and slagging in coal-fired boilers, etc., to achieve Large monitoring range, eliminating the influence of environment and emissivity, and good reliability

Active Publication Date: 2016-11-09
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

[0007] Aiming at the unsatisfactory monitoring effect of ash accumulation and slagging in coal-fired boilers and the blind soot blowing...

Method used

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  • CCD-based intelligent soot blowing system for formed soot and bonded slag on boiler heating surface
  • CCD-based intelligent soot blowing system for formed soot and bonded slag on boiler heating surface
  • CCD-based intelligent soot blowing system for formed soot and bonded slag on boiler heating surface

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Embodiment Construction

[0029] Below, the invention will be described in detail in conjunction with the accompanying drawings and the specific operation implementation process.

[0030] like figure 1 As shown, a CCD-based intelligent soot blowing system for ash and slagging in the heating area of ​​the boiler includes an image acquisition system, an image processing system, a soot blowing control system, and a soot blowing execution system. The image acquisition system is arranged on the boiler wall, and the obtained two-dimensional The image enters the computer through the receiving storage device and is stored in it. The image processing system obtains the two-dimensional image from the storage place and performs three-dimensional reconstruction and colorimetric temperature measurement to obtain the thickness of the ash layer and the relative temperature of the heating surface. The thickness of the layer and the relative temperature of the heating surface are blurred and instructions are issued, an...

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Abstract

The invention discloses CCD-based intelligent soot blowing system for formed soot and bonded slag on a boiler heating surface. The system comprises an image acquiring system, an image processing system, a soot blowing controlling system and a soot blowing executing system; the image acquiring system is arranged on a boiler wall and used for acquiring two-dimensional images and transmitting and storing the images to a computer through a receiving and storing device; the image processing system is used for conducting three-dimensional reconstruction and colorimetric temperature measurement on the two-dimensional images to obtain the thickness of a soot slag layer and the relative temperature of the heating surface; the soot blowing controlling system is used for conducting fuzzy processing on the thickness of the soot slag layer and the relative temperature of the heating surface and sending out an instruction; the soot blowing executing system conducts targeted intelligent soot blowing according to the instruction. According to the system, the heating surface is partitioned according to a soot blower, the thickness of the soot slag layer and the relative temperature of the heating surface are taken as input variables of fuzzy control, and therefore the whole boiler heating surface is accurately monitored; soot blowing is conducted on the local heating surface as needed, therefore, soot blowing loss is reduced, and the overall heat efficiency of a boiler is improved.

Description

technical field [0001] The invention relates to the technical field of intelligent soot blowing for coal-fired boilers, in particular to a CCD-based intelligent soot blowing system for ash slagging in the heated area of ​​the boiler. Background technique [0002] During the operation of coal-fired and biomass boilers, the accumulation of ash and slagging on the heating surface is inevitable. Severe ash accumulation and slagging will threaten the safe and economical operation of the boiler. Due to the large thermal resistance of ash and slag, the ash accumulation and slagging on the heating surface will reduce the efficiency of the heating surface, increase the coal consumption of the unit, increase the temperature of the furnace outlet and the final boiler exhaust gas, and lead to a decrease in the overall efficiency of the boiler; On the one hand, in the case of maintaining the load, it will lead to problems such as overtemperature and high temperature corrosion of the hea...

Claims

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Application Information

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IPC IPC(8): G01N21/94F23J1/00
CPCF23J1/00F23J2700/001G01N21/94
Inventor 卢志民谭超姚顺春
Owner SOUTH CHINA UNIV OF TECH
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