Detection method of flue gas temperature in power plant boiler furnace based on thermal power generation

Abstract

The invention discloses a method for detecting flue gas temperature of a power station boiler furnace based on thermal power generation, which belongs to the technical field of flue gas temperature detection, and includes installing a scattered point temperature collection point at the outlet of the boiler furnace, expanding the scattered point temperature collection point into Scattered point temperature collection network, multiple contacts of the scattered point temperature collection network collect the temperature of multiple points of the flue gas at the furnace outlet, selectively output temperature data and send it to the temperature detection terminal. The present invention can use the scattered point temperature collection point After the flue gas in the boiler furnace is heated up in the early stage, the scattered point temperature collection point will become a scattered point temperature collection network, which can realize multi-point measurement of the flue gas in the boiler furnace, thereby avoiding the accidental data and improving the measurement output. The accuracy of the temperature data, and at the same time the final temperature data combined with the temperature loss of the scattered temperature collection point itself, further reducing the error, thereby improving the accuracy.

Description

technical field [0001] The invention relates to the technical field of flue gas temperature detection, and more specifically, relates to a method for detecting flue gas temperature of a power station boiler furnace based on thermal power generation. Background technique [0002] The boiler is a kind of energy conversion equipment. The energy input to the boiler includes chemical energy and electric energy in the fuel, and the boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of heat energy. The original meaning of the pot refers to the water container heated on the fire, and the furnace refers to the place where fuel is burned. The boiler includes two parts: the pot and the furnace. The hot water or steam generated in the boiler can directly provide the required heat energy for industrial production and people's life, and can also be converted into mechanical energy through a steam power device, or converted into electrical energy thr...

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Problems solved by technology

[0006] However, the flue gas flow field at the furnace outlet is complex, and the temperature at the same cross-section is unevenly distributed. Therefore, in the actual temperature measurement process, only a single point is measured, and the temperature data obtained have certain contingencies and large errors. At the same time , the detection device itself will also consume or generate part of the heat, resulting in errors in the measured temperature itself, causing the staff to make wrong judgments on the temperature in the boiler furnace according to the temperature data obtained on the temperature detection terminal, resulting in safety hazards. Hidden dangers, and there will be unnecessary consumption

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