High-temperature optical fiber probe convenient for cooling protection

Abstract

The present invention discloses a high-temperature optical fiber probe convenient for cooling protection. The probe comprises an optical fiber collimator, a cooling protection shell and an infrared radiation energy processing system, a first fixed flange is installed inside the top of the cooling protection shell, and the optical fiber collimator is installed inside the first fixed flange. The optical fiber collimator is installed in the cooling protective shell through a first fixing flange. According to the invention, the optical fiber collimator can be well cooled and protected by using airflow, so that the optical fiber collimator can continuously work in a high-temperature industrial environment; the TE refrigeration patch is used for cooling and protecting the focusing imaging lens group and the detector, so that the detector can work in a room-temperature environment, and after the detector passes through the energy filtering assembly, a detector circuit board can obtain accurate data without temperature drift, continuous and reliable data are provided for a combustion optimization control system, the optimal optimization control effect is guaranteed, and the flue temperature of the coke oven is stable, and energy conservation, consumption reduction and emission reduction are realized.

Description

technical field [0001] The invention relates to the field of infrared detection technology, in particular to the field of temperature detection of a vertical flue installed on the top of a coking furnace, and belongs to the industrial application category of optical temperature measurement and combustion control of coke ovens. Background technique [0002] my country has a large demand for coke production, and the number of coking plants ranks first in the world. However, there are serious defects in the accurate detection of the most important flue temperature parameter of about 1300°C in the coking process. If the flue temperature is unstable, it will lead to uneven heating of the coke oven. , Partial coke formation will cause black smoke when coke is discharged, which directly affects the quality of coke and the life of the furnace body. Optimal control of the heating and combustion process of the coke oven plays a very important role in reducing the production cost of coki...

AI Technical Summary

Problems solved by technology

There has always been a large error between theory and experiment, and it is still unable to obtain safety certification in industrial applications

On the other hand, infrared online temperature measurement requires laying and maintaining a large number of long optical fibers on the top of the high-temperature furnace, and the construction and maintenance are very troublesome.

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