System and method for establishing temperature field of power plant boiler by using superposition characteristics of gas infrared radiation
A technology of infrared radiation and power plant boilers, applied in radiation pyrometry, sensing radiation from gas/flame, optical radiation measurement, etc., can solve the problem that the reading of infrared thermometer cannot be simply regarded as the temperature of a certain point in space , the accuracy of the temperature field cannot be guaranteed, etc., to achieve the effect of shortening the update cycle, reducing the accuracy, and improving real-time performance
Active Publication Date: 2020-06-30
天津德尔泰热控系统有限公司
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Problems solved by technology
[0003] At present, it is difficult to carry out long-term real-time online monitoring of the furnace temperature field by using the traditional thermocouple temperature measurement method. The non-contact infrared temperature measurement device has the characteristics of fast response, high operating temperature, accurate measurement data, and stable and reliable operation. Therefore, Multiple sets of infrared temperature measuring devices can be used to measure multiple measurement points in the furnace and restore the temperature field; however, when applying this method, people generally ignore a problem, because the temperature value obtained by the infrared thermometer is positively correlated with the received radiant energy , and the gas has penetrability, on the optical path of the thermometer, the radiation on one line will be received, so the reading of the infrared thermometer cannot be simply regarded as the temperature of a certain point in space, it is a line on the optical path The comprehensive reflection of the temperature of each point on the straight line
Therefore, the accuracy of the temperature field constructed by using the reading of the infrared thermometer directly as the temperature of a point cannot be guaranteed
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[0034] Such as Figure 1 to Figure 4 As shown, the present invention utilizes gas infrared radiation superposition characteristics to establish a system for the temperature field of a power plant boiler, including a central controller 1, a two-color infrared thermometer 2, a power plant monitoring computer 4, and a temperature field reconstruction industrial computer 5;
[0035] The quantity of the two-color infrared thermometer 2 is at least four, and is installed on the furnace wall 3 of the boiler;
[0036] The signal output end of the two-color infrared thermometer 2 is connected to the central controller 1 through wires, and the signal output end of the central controller 1 is respectively connected to the power plant monitoring computer 4 and the temperature field reconstruction industrial computer 5 .
[0037] The two-color infrared thermometer 2 includes a casing 6, a casing flange 7, an air source interface 8, a wiring hole 9, a casing 10, and a flange 11;
[0038] T...
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The system and method for establishing the temperature field of a power station boiler by using the superimposed characteristics of gas infrared radiation in the present invention belong to the technical field of establishing the temperature field of a power station boiler by using the superimposed characteristics of gas infrared radiation; the technical problem to be solved is: provide a method for establishing a power station by using the superimposed characteristics of gas infrared radiation The system and method of boiler temperature field; the technical solution adopted to solve this technical problem is: a system for establishing the temperature field of a power plant boiler by using the superposition characteristics of gas infrared radiation, including a central controller, a two-color infrared thermometer, a power plant monitoring computer and temperature field reconstruction industrial computer; the quantity of the two-color infrared thermometer is at least four, and is installed on the furnace wall of the boiler; the signal output end of the two-color infrared thermometer is connected to the central controller through a wire, and the central controller The signal output ends are respectively connected with the power plant monitoring computer and the temperature field reconstruction industrial computer; the invention is installed and applied to the power plant boiler.
Description
technical field [0001] The system and method for establishing the temperature field of a power station boiler by using the superimposed characteristics of gas infrared radiation according to the invention belong to the technical field of establishing the temperature field of a power station boiler by using the superimposed characteristics of gas infrared radiation. Background technique [0002] The furnace temperature field of the boiler can directly reflect the combustion temperature of each position inside the boiler. It is a very important parameter during the operation of the boiler. On the one hand, it can be determined according to the temperature field of the furnace whether the center of the flame is deflected or the flame brushes the wall. Timely regulation and control can prevent the reduction of boiler thermal efficiency, noise or furnace explosion. On the other hand, the temperature field of the furnace can also provide reliable data basis for the pollutant treatm...
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IPC IPC(8): G01J5/00F23N5/02
CPCF23N5/02G01J5/0014G01J5/0044F23N2225/08G01J5/80
Inventor 房山巍
Owner 天津德尔泰热控系统有限公司