High-temperature target surface temperature measuring instrument facilitating in-furnace temperature inspection

Abstract

The invention discloses a high-temperature target surface temperature measuring instrument facilitating in-furnace temperature inspection, the instrument comprises double-layer protective cylinders and an optical system, the optical system is located between the two double-layer protective cylinders, one side of the optical system is provided with an inverted image extension mirror rod, the front ends of the two double-layer protective cylinders are provided with protective parts, one end of each protective part is provided with two bent openings, a gap is formed between the two bent openings, the other end of each protective part is provided with an imaging objective lens, and the imaging objective lens is connected with the inverted image extension lens rod through a screw. A high-sensitivity short-wave infrared area array detector is utilized, a temperature calibration model with multiple measuring ranges and a large measuring range is embedded in an acquisition processing module, full coverage of the measuring range from medium low temperature to high temperature is achieved, direct-view and overlook wide-angle long lens design is achieved, the instrument can go deep into a hearth, the direct-view lens or the overlook lens can be freely switched according to the application environment, and the surface temperature distribution can be outputted in real time.

Description

Technical field [0001] The present invention relates to a temperature measuring device, and more particularly, to a high-temperature furnace temperature to facilitate the inspection target surface temperature measurement. Background technique [0002] Petrochemical industry is petroleum and petrochemical tubular heater and chemical production in the important and critical energy conversion equipment, harsh operating environment, high temperatures, and inflammable and explosive, the general temperature detection tool can not be used, the temperature of the heating furnace tube monitoring is still relying on staff regularly measured against the tube through the observation hole temperature gun, so there are several questions: 1) is the measuring point (a limited number of areas, not fully reactor tube actual temperature distribution, resulting the actual situation is difficult to control the whole operation of the furnace tubes, the combustion control is difficult to achieve the be...

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Problems solved by technology

[0006] The main purpose of the present invention is to provide a high-temperature target surface temperature measuring instrument that is convenient for temperature inspection in the furnace. The present invention proposes a high-temperature target surface temperature measuring instrument that is convenient for furnace temperature inspection. The sensor realizes the full coverage of the measurement range of 300~1800°C. The wide-angle long lens can penetrate deep into the furnace, real-time output surface temperature distribution, and determine the location and shape of hot spots, which can effectively solve the problem of limited measurement points and a large number of measurement blind spots of point-type infrared thermometers. Defects and high-temperature radiation burn human eyes; it can also effectively solve the problem that thermal imaging cameras cannot accurately measure online due to serious temperature drift, and can also effectively solve the problem of expensive and expensive design and processing of far-infrared band detectors and optical systems of infrared thermal imaging cameras. The problem of excessive cost

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