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Three dimension temperature field realtion monitor in coal burning boiler

A three-dimensional temperature and real-time monitoring technology, which is applied in measuring devices, temperature recording methods, radiation pyrometry, etc., can solve problems such as no implementation device, and achieve the effect of easy implementation and simple device structure

Inactive Publication Date: 2005-03-02
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
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  • Claims
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Problems solved by technology

Although this invention proposes a method for measuring the three-dimensional temperature field in the boiler, it does not provide a set of specific implementation devices

Method used

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  • Three dimension temperature field realtion monitor in coal burning boiler
  • Three dimension temperature field realtion monitor in coal burning boiler
  • Three dimension temperature field realtion monitor in coal burning boiler

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0013] Such as figure 1 As shown in the figure, a 670t / h four-corner tangential combustion boiler 1 is shown in the figure. The height of the furnace area from above the cold ash hopper 2 to below the folded flame angle 3 of this furnace is 20 meters. A real-time monitoring device for the three-dimensional temperature field in the coal-fired boiler furnace is installed on the boiler. Eight camera probes 4 are installed at the four corners of the furnace, arranged in one layer every 5 meters, two in each layer, and two adjacent layers are arranged in a staggered manner. Send the video signals from the eight camera probes 4 into the video splitter 6 with the video cable 5, and the video splitter 6 synthesizes the eight-way video signals into one, and sends them to the computer 7 through the video cable 5, and completes the process in the computer 7 Calc...

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Abstract

An inner coal boiler three-dimensional temperature field monitoring apparatus belong to boiler temperature testing technique, with camera shot probe installed hierarchical arrangement along boiler height direction in furnace cavity zone area between cold ash bucket to flame angle and at least two camera shot probes is installed on each layer. With central line of visual angle downward, Video signal of each camera shot probe is sent into video decollator to become one link of signal, then sent to computer to dispose. It is best for camera shot probe to be installed as one layer with an interval of four to six meters. The invention with simple structure is easy to be realized and can work stably under bad circumstance of electricity station boiler; radiation information from furnace cavity zone can be completely received by its camera shot probe, so that three-dimensional temperature field in furnace cavity zone can be calculated accurately.

Description

technical field [0001] The invention belongs to boiler temperature detection technology, in particular to a real-time monitoring device for a three-dimensional temperature field in a coal-fired boiler furnace. Background technique [0002] In my country's power plant boilers, coal-fired boilers account for more than 80%. The combustion process in the boiler furnace takes place in a relatively large space and is a complex physical and chemical process that is pulsating and has obvious three-dimensional features. The detection of three-dimensional temperature distribution in the furnace is of great help to improve the economy and safety of boiler operation. [0003] In practical applications, thermocouples, radiation pyrometers, and infrared thermal imaging cameras are mainly used to detect the temperature of the combustion flame in the furnace. As a kind of contact temperature measuring equipment, thermocouple interferes with the measured object, and can only achieve point ...

Claims

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Application Information

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IPC IPC(8): F23N5/00G01J5/00G01J5/48
Inventor 周怀春娄春程强罗自学姜志伟
Owner HUAZHONG UNIV OF SCI & TECH
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