Wet-type electric dust remover equipment

Abstract

The invention provides wet-type electric dust remover equipment, which comprises a dust remover main body comprising a plurality of dust remover main body units, wherein each dust remover main body unit comprises a water collecting tank, a dust remover body and an air outlet cover which are arranged from bottom to top, the top of the dust remover body is communicated with the air outlet cover, thebottom of the dust remover body communicates with an air inlet, the air outlet cover is communicated with a negative pressure fan, the dust remover body comprises a box body and an electrode wire, aplurality of closed insulator mounting boxes are arranged around the box body, insulators are mounted in the insulator mounting boxes, and the upper portion of the insulator mounting box positioned atthe upper portion is communicated with the air outlet cover. According to the invention, creepage, discharge or temperature rise burst and other phenomena generated after the insulator is stained with dust are avoided; the inner wall of the pipe body and the electrode wires can be cleaned more comprehensively; the tips of the electrode wires are distributed in a three-dimensional mode, and the electrode wires are in a spiral sheet shape, so that the dust adsorption probability is increased, and the escape rate is reduced; the position degree of the electrode wire is accurate; the electrode wire is convenient to install; and water is saved, and secondary pollution is avoided.

Description

technical field [0001] The invention relates to the technical field of exhaust gas treatment, in particular to a wet electrostatic precipitator device. Background technique [0002] Electrostatic precipitator is an essential supporting equipment for thermal power plants. Its function is to remove the particulate smoke and dust in the exhaust gas of combustion stoves or oil-fired boilers, thereby greatly reducing the amount of smoke and dust discharged into the atmosphere, which is to improve environmental pollution. , an important environmental protection equipment to improve air quality, electrostatic precipitator is divided into wet electrostatic precipitator and dry electrostatic precipitator, wet electrostatic precipitator and dry electrostatic precipitator have the same dust collection principle, all rely on high voltage corona The discharge makes the dust charged, and the charged dust reaches the dust collecting plate / pipe under the action of the electric field force. ...

AI Technical Summary

Problems solved by technology

[0004] 1. The cathode plate and the anode tube should be insulated. The existing method is mostly the anode tube is grounded, and the anode tube is installed on the dust removal box, and the dust removal box is grounded, so as to ensure the safety of the equipment, and the cathode plate is usually through an insulator. Installed on the box, but the working environment of the dust collector is poor and there is a lot of dust. After the insulator is covered with dust, creepage, discharge or temperature rise and burst will occur, causing the equipment to stop

[0005] 2. The existing electrode wires are mostly installed by manual electric welding bolts, and then the electrode wires are installed through the bolts, but the manual welding error is large, which is likely to cause different electric fields and affect the dust removal efficiency

In addition, if the electric field is inconsistent, it will also lead to a decrease in the contact efficiency of the charged particles, as well as a decrease in the contact efficiency between the charged particles and the tubes, and an increase in the escape rate.

[0006] 3. Conventional electrode wire structures include: tubular prickly wire, sawtooth wire, angle steel prickly wire, spiral wire, star-shaped wire, etc.; existing problems and shortcomings of prickly wire: the gas with dust is in a straight line in the pipe fittings Trajectory, short residence time, low charging contact efficiency, many dusts are not charged; unreasonable structure of the discharge tip, resulting in uneven distribution of corona when the burr discharges at the tip, low charging contact efficiency, resulting in particle escape rate raised

[0007] 4. Common cleaning methods for wet electrostatic precipitators include self-scouring, spray scouring and liquid film scouring. These cleaning methods are cleaned from top to bottom, and the water after rinsing is directly discharged with dust. The existing wet electrostatic precipitator The water circulation system consumes a huge amount of water. Generally, the water consumption per day is 3 tons. The discharged gray water has secondary pollution and serious corrosion of internal parts. As a result, the large-scale application of wet electrostatic precipitators in domestic coal-fired power plants is still very rare

Images