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Online flue gas temperature measurement method, device and system based on visible light technology

A temperature measuring device and visible light technology, applied in the direction of temperature measurement of moving fluids, can solve the problems of untargetable continuous real-time online measurement, measurement result error, etc., and achieve improved stability and reliability, small size, and optimized boiler combustion. Effect

Active Publication Date: 2019-07-23
YANTAI LONGYUAN POWER TECH
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Problems solved by technology

However, because it can only measure "spot" temperature and is limited by the high temperature performance of the heating element material, it is impossible to carry out long-term continuous real-time online measurement of the target; Noise can cause serious errors in measurement results

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  • Online flue gas temperature measurement method, device and system based on visible light technology
  • Online flue gas temperature measurement method, device and system based on visible light technology
  • Online flue gas temperature measurement method, device and system based on visible light technology

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0041] The relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0042] At the same time, it should be understood that, for the convenience of d...

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Abstract

The invention discloses an online flue gas temperature measurement method, device and system based on visible light technology. The device includes a temperature measuring probe, a photodiode, and a voltage-current converter, wherein: the temperature measuring probe is used to collect the visible light signal of the flue gas in the furnace; the photodiode is used to convert the visible light signal into a voltage signal; A current converter is used to convert the voltage signal into corresponding temperature data, wherein the temperature data is a standard current signal; and send the temperature data to the DCS subsystem of the power plant. The invention can realize the requirement of real-time on-line temperature measurement, and the temperature data can be directly uploaded to the DCS subsystem of the power plant, which is convenient for operating personnel to monitor the combustion situation in the furnace to optimize the combustion of the boiler.

Description

technical field [0001] The invention relates to the technical field of furnace temperature measurement, in particular to an online flue gas temperature measurement method, device and system based on visible light technology. Background technique [0002] In my country's electric power industry, thermal power generation accounts for about 70%. Improving the safety and economy of thermal power unit operation is of great significance to the development of the entire electric power industry. The combustion adjustment of boilers in thermal power plants is critical to the safe and economical operation of boilers, and a series of parameters need to be monitored during combustion adjustment tests, but one of the most critical parameters that directly reflects the combustion flame is the furnace flue gas temperature. [0003] The current temperature measurement methods of boiler high-temperature flue gas mainly include high-temperature thermocouple temperature measurement method and ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K13/02G01K13/024
Inventor 李明董永胜宋林波衣军刘平初燕
Owner YANTAI LONGYUAN POWER TECH
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