Fishbone needle type cathode line for wet type electric precipitator

Abstract

The invention discloses a fishbone needle type cathode line for a wet type electric precipitator. The fishbone needle type cathode line comprises a cathode rod. The cathode rod is sleeved with a plurality of stainless steel rings. Each stainless steel ring is fixedly connected with N fishbone needles. The included angle between every two adjacent fishbone needles is 360 degrees / N, wherein N is a positive integer. The N fishbone needles on the adjacent stainless steel rings are arranged in a staggered manner. The discharge sharp end of each fishbone needle is in a ball shape. The novel fishbone needle type cathode line for the wet type electric precipitator is simple in structure, convenient to install, high in dust removing efficiency and capable of being adjusted in good time according to actual situations. The cathode line has the beneficial effects that the discharge inception voltage is low, the voltage current characteristic is good, and the adaptability to the smoke change is high, and the dust and mist removing efficiency is guaranteed.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a herringbone needle type cathode wire used for a wet electrostatic precipitator. Background technique [0002] The cathode line is the core component of the wet electrostatic precipitator, and its structure directly affects the deep purification effect of the wet electrostatic precipitator. At present, the cathode wire types of wet electrostatic precipitators mainly include star wire, zigzag wire, and ordinary prickly wire, etc. Due to the high dust concentration in the flue gas of coal-fired power plants, corona sealing is easy to occur, and fish bone is often used for electrostatic precipitators. Needle type cathode wire. [0003] In wet electrostatic precipitators, the type of anode plate is mostly honeycomb, and the cathode wire needs to establish an electric field with multiple (≥4) anode plates, while the existing herringbone needle wire is welded in two ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a better performance for the current wet electrostatic precipitator, which is short of discharge performance of the cathode line, prone to corona blockage, inflexible in design, and unable to be adjusted in time according to the actual working conditions on site. Excellent discharge characteristics and easy assembly, convenient and flexible cathode wire

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