On-line testing device of carbon content in flying ashes in boiler flue for coal power station

Abstract

The invention belongs to the field of coal-fired power plant boiler flue fly ash detection, and relates to a device for online carbon content detection of coal-fired power plant boiler flue ash by adopting weightlessness technology. The carbon content detection device is characterized in that it consists of The sampler (1) and the measuring box (20) are composed, the sampling pipe (2) and the injection pipe (3) of the sampler (1) extend into the flue of the boiler of the power station under test, and the cyclone dust collector (5) under it The ash opening is connected with an ash adding pipe (6), and the ash adding pipe (6) is located in the measuring box (20), and is used to add ash samples to the loading crucible (9) arranged in the measuring box (20), and the measuring box (20) ) is also provided with a heater for heating the ash sample in the loading crucible (9) and a balance (19) for measuring the weight of the ash sample in the loading crucible (9). The invention has the advantages of high measurement precision, and the measurement precision is not affected by the change of coal type, etc., and can really provide real-time and accurate basis and guidance for the optimal combustion adjustment of the coal-fired boiler.

Description

technical field [0001] The invention belongs to the field of detection of fly ash in the flue of a coal-fired power station boiler, and relates to a device for online carbon content detection of the fly ash in the flue of a coal-fired power station boiler by using the weightlessness technology. Background technique [0002] The carbon content of fly ash in the flue of coal-fired power plant boilers is an important indicator reflecting the combustion efficiency of coal-fired boilers in thermal power plants. Real-time online detection of carbon content in fly ash will help guide the operation to adjust the air-to-coal ratio correctly and improve the level of boiler combustion control; Reasonable control of the carbon content of fly ash is beneficial to reduce the cost of power generation and improve the economy of unit operation. [0003] The on-line detection devices for the carbon content of boiler flue fly ash currently in use in domestic power plants basically use microwav...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art, to provide a coal-fired power plant boiler flue ash carbon content online detection device based on the weightlessness technology, which not only solves the problem that the microwave carbon measurement technology is affected by the change of coal type, Moreover, it solves the technical problem of carbon measurement technology by weight loss method from laboratory measurement application to industrial site real-time online measurement

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