Furnace box temperature field reconstructing device and method based on acoustic method

Abstract

The invention discloses a furnace box temperature field reconstructing device and method based on an acoustic method. The furnace box temperature field reconstructing device comprises a plurality of acoustic wave generators and acoustic wave picking devices matched with the acoustic wave generators, wherein the acoustic wave generators and the acoustic wave picking devices are arranged in a boiler furnace. Displacement detection devices are arranged on the acoustic wave generators and the acoustic wave picking devices and connected with a data collecting and transmitting device. The furnace box temperature field reconstructing device further comprises a data processing center connected with the data collecting and transmitting device, the acoustic wave generators and the acoustic wave picking devices. The acoustic wave generators and the acoustic wave picking devices are located on the same cross section of the boiler furnace. An acoustic wave transmission path composed of the acoustic wave generators and the acoustic wave picking devices is distributed in a plane network shape. The furnace box temperature field reconstructing device and method based on the acoustic method can effectively solve the problems that when a furnace temperature field reconstructing device and method based on the acoustic method are used for reconstructing a temperature field, the reconstruction precision of the temperature field is low, operation of operating people is affected, and then the economy and safety of boiler running are affected.

Description

technical field [0001] The invention relates to the field of furnace temperature field reconstruction, in particular to a furnace temperature field reconstruction device and method based on an acoustic method. Background technique [0002] In the process of using boilers to burn fossil fuels or other fuels to generate heat or other secondary energy sources, the distribution of the furnace temperature field is an important parameter that reflects the combustion process, pollutant generation, and equipment status. It is important for boiler control and combustion diagnosis. It is very important and directly affects the economy, safety and environmental performance of the boiler. Due to the characteristics of transient, random turbulent flow and harsh environment in the combustion process in the furnace, it brings difficulties to the measurement of the parameters of the thermophysical quantity field, especially the measurement of the temperature distribution. Traditional tempe...

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Problems solved by technology

[0006] The object of the present invention is to provide a furnace temperature field reconstruction device and method based on the acoustic method to solve the following problems in the existing acoustic furnace temperature field reconstruction system and its method: the existing acoustic furnace temperature field reconstruction The system and its method cannot detect the relative position change between the acoustic wave transmitting and receiving devices. When reconstructing the temperature field, the length of the flight path is regarded as the length value of the cold state installation or the method of estimation compensation is adopted.

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