Electric precipitator pole plate dust thickness monitoring system based on optical fiber sensor
A fiber optic sensor, dust thickness technology, applied in electrode cleaning, electrostatic separation, etc., can solve the problems of inability to accurately reflect the state of the plate dust, the sensor does not consider the actual environment, poor reliability of measurement results, etc., to achieve stable and efficient dust removal, reduce Complexity, the effect of improving accuracy
Pending Publication Date: 2022-04-05
润电能源科学技术有限公司
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However, these two methods are mainly point tests or indirect tests, which cannot accurately reflect the overall dust accumulation status of the plates, and the sensors used have not considered the actual environment, and the reliability of the measurement results under the action of a strong electric field is poor, and the measurement accuracy is low
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[0020] figure 1 It is a schematic structural diagram of a monitoring system for dust thickness of electrode plates of electrostatic precipitators based on optical fiber sensors in the present invention, figure 2 It is a schematic diagram of the results of the optical fiber sensing monitoring module of the present invention. As shown in the figure, a dust thickness monitoring system for electric precipitator plates based on optical fiber sensors includes an optical fiber sensing monitoring module, a demodulation module 4 and a control module. The monitoring module includes a signal transmission optical cable 3 and a number of optical fiber sensor units 2 fixed on the polar plate 1. The optical fiber sensor units 2 are welded or glued to the top of the plate surface of the polar plate 1 to be tested or the hook of the polar plate 1 to be tested. In this embodiment, it is bonded to the top of the plate surface of the pole plate 1 to be tested. The fiber optic sensor unit 2 incl...
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The invention discloses an electric precipitator pole plate dust thickness monitoring system based on an optical fiber sensor, which comprises an optical fiber sensing monitoring module, a demodulation module and a control module, and is characterized in that the optical fiber sensing monitoring module comprises a signal transmission optical cable and a plurality of optical fiber sensor units fixed on a pole plate; each optical fiber sensor unit comprises an optical fiber strain sensor and an optical fiber temperature sensor, the plurality of optical fiber sensor units are connected in series through a signal transmission optical cable, the signal transmission optical cable is connected with the demodulation module, and the demodulation module is connected with the control module. According to the electric precipitator pole plate dust thickness monitoring system based on the optical fiber sensors, in a strong electric field environment in an electric precipitator, the plurality of optical fiber sensors are connected in series to realize real-time online monitoring of the dust thickness of the electric precipitator pole plate; and the reliability and the accuracy of monitoring results are improved.
Description
technical field [0001] The invention relates to the technical field of electrode plate monitoring of an electric precipitator, in particular to an optical fiber sensor-based dust thickness monitoring system for an electrode plate of an electric precipitator. Background technique [0002] In the electrostatic precipitator, the high-voltage DC uneven electric field is used to ionize the gas molecules in the flue gas, generating a large number of electrons and ions, which move to the two poles under the action of the electric field force; during the movement, they encounter the dust particles in the airflow and make them Charged, the charged dust is separated from the airflow under the action of the electric field force and moves in the opposite direction; the charged dust releases most of the charge after reaching the plate, and is adsorbed on the plate by the intermolecular force and residual electrostatic force. After the dust is absorbed to a certain extent, the dust is pee...
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Inventor 冉真真王锋涛彭峰许旭斌杨硕许剑王冰陈浩军徐少杰冯斌孙明坤段超田野柴全
Owner 润电能源科学技术有限公司