Adjustable water-cooling sampling gun device for boiler and sampling method

Abstract

The invention belongs to the field of boiler combustion testing devices, in particular to a water-cooling sampling device and method for sampling high-temperature flue gas in a hearth during the combustion process of a boiler. The sampling device is characterized by comprising detachable multi-stage water-cooling sampling tubes, wherein the different water-cooling components are connected through threads; a red copper gasket is arranged between every two adjacent water-cooling components for sealing. The sampling device is supported by high-temperature resistant metallic supports, thereby being sufficient in rigidity. During a sampling process, sampling of flue gas at different positions of the high-temperature hearth can be realized by assembling different numbers of sampling components.

Description

technical field [0001] The invention belongs to the scope of a boiler combustion test device, and relates to a water-cooled sampling device and method capable of sampling high-temperature flue gas from a furnace during the boiler combustion process. Background technique [0002] A large amount of pollutants are produced during the combustion process of the boiler. The understanding of the action law of pollutants in the furnace is the basis of pollutant control, and the accurate sampling of flue gas samples in the furnace is the premise of studying the law of action. Sampling gun is a common device for collecting combustion products of specific combustion equipment, but conventional sampling guns are used for sampling in the tail flue of the boiler, after electrostatic precipitator and desulfurization, and these places are relatively low in temperature relative to the furnace. The sampling guns developed for these places are difficult to withstand the high temperature of the...

AI Technical Summary

Problems solved by technology

Sampling gun is a common device for collecting combustion products of specific combustion equipment, but conventional sampling guns are used for sampling in the tail flue of the boiler, after electrostatic precipitator and desulfurization, and these places are relatively low in temperature relative to the furnace. The sampling guns developed for these places are difficult to withstand the high temperature of the furnace

At present, there is still a lack of high-temperature sampling guns for the furnace, especially the high-temperature flame zone in the center of the furnace of a thermal power plant boiler.

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