A non-cleaning anode plate and wet electrostatic precipitator

Abstract

The invention discloses a rinse-free anode plate and a wet electrostatic precipitator. The rinse-free anode plate comprises an anode plate module which comprises a or a plurality of anode plate rows; each anode plate row comprises a plurality of anode plate units which are in series connection with each other; the anode plate units are of hollow structures and used for allowing cooling water to pass through; each anode plate row comprises a water inlet and a water outlet; an anode plate row is a loop or a plurality of the anode plate rows are a loop. The wet electrostatic precipitator comprises a shell of an empty cavity inside; an anode plate and a cathode system and the like are disposed in the shell, wherein the anode plate is a rinse-free anode plate, and an electric field is formed between the cathode system and the anode plate. With the rinse-free anode plate and the wet electrostatic precipitator provided by the invention, rinsing process of the anode plate is eliminated, use of process and alkaline water is saved, various bad effects brought by rinsing are avoided, removal efficiency of the wet electrostatic precipitator to droplets, gypsum rain, dust and the like is improved at the same time.

Description

technical field

[0001] The invention relates to a wet electric dust collector, in particular to a non-cleaning anode plate and a wet electric dust collector. Background technique

[0002] The wet electrostatic precipitator is generally installed after the mist eliminator of the desulfurization tower and before the chimney inlet, and its applications include thermal power plants, chemical plants, steel mills, cement kilns and other industries. Wet electrostatic precipitator is an environmental protection equipment set up for further processing dust, mist, etc. It can further reduce the emission concentration of dust, SO2, heavy metals, etc. Corrosion, reducing the "gypsum rain" phenomenon. The existing wet electrostatic precipitators mainly have two structural forms: plate type and tube type. The material of the plate type wet electrostatic precipitator is mostly metal plate (generally 316L material).

[0003] In actual operation, the flue gas from the absorption tower usin...

Examples

Embodiment 1

[0031] Such as figure 1 As shown, the no-clean anode plate in this embodiment takes an anode plate row as an example, this anode plate row includes 16 anode plate units 1, and the upper end of the rightmost anode plate unit 1 in the figure is the water inlet end of the anode plate row , which is connected to the water inlet 2 of the cooling water pipeline, and a connecting piece 21 is arranged at the joint. Connectors 31 are provided at each location, and connecting elbows 4 are provided between the free ends of every two adjacent anode plate units 1 for connecting the hollow structures of two adjacent anode plate units 1 .

[0032] Generally, the material of the anode plate unit 1 can be binocular stainless steel, 316L, conductive glass fiber reinforced plastics, composite anti-corrosion materials, polymer materials and the like. In this embodiment, 316L stainless steel is taken as an example, and a hollow anode plate unit 1 is formed by four steel plates 5, which is a flat ...

Embodiment 2

[0035] The anode plate unit 1 of the present embodiment is a diaphragm type, such as image 3As shown, the steel pipe 6 is installed in an approximately circular place, and the cooling water is passed through the steel pipe 6, the cooling water flow area is reduced, and the power consumption of the circulating water pump is reduced; the diaphragm is equivalent to a fin, which increases the heat exchange area, The heat exchange effect has been further improved; the thickness of the thinnest part of the diaphragm is very small, and the fit is relatively tight, which increases the rigidity of the anode plate and has a long service life.

[0036] The wet electrostatic precipitator provided by the present invention includes a housing with a cavity inside, and an anode plate and a cathode system are arranged in the housing, wherein: the anode plate is a non-cleaning anode plate as described in the above embodiment, and the anode plate and the cathode system An electric field is form...

Embodiment 3

[0038] Such as Figure 4 As shown, the electrostatic precipitator of this embodiment includes a housing, the inside of the housing is a cavity, and the housing is provided with an anode plate and a cathode system 8, wherein: the anode plate is the non-cleaning anode plate described in the above embodiment, here No need to go into details, after the cathode system 8 is energized, an electric field is generated between the cathode system 8 and the anode plate, and the dust is negatively charged in the electric field, and then is adsorbed onto the anode plate. The flue gas from the desulfurization absorption tower enters the interior of the electrostatic precipitator and flows through the electric field space. The gas flow direction is parallel to the anode plate and perpendicular to the cathode line in the cathode system 8. The liquid droplets and dust are collected and attached to the surface of the anode plate after being charged. The heat exchange reduces the temperature of ...

technical field

[0001] The invention relates to a wet electric dust collector, in particular to a non-cleaning anode plate and a wet electric dust collector. Background technique

[0002] The wet electrostatic precipitator is generally installed after the mist eliminator of the desulfurization tower and before the chimney inlet, and its applications include thermal power plants, chemical plants, steel mills, cement kilns and other industries. Wet electrostatic precipitator is an environmental protection equipment set up for further processing dust, mist, etc. It can further reduce the emission concentration of dust, SO2, heavy metals, etc. Corrosion, reducing the "gypsum rain" phenomenon. The existing wet electrostatic precipitators mainly have two structural forms: plate type and tube type. The material of the plate type wet electrostatic precipitator is mostly metal plate (generally 316L material).

[0003] In actual operation, the flue gas from the absorption tower usin...

Examples

Embodiment 1

[0031] Such as figure 1 As shown, the no-clean anode plate in this embodiment takes an anode plate row as an example, this anode plate row includes 16 anode plate units 1, and the upper end of the rightmost anode plate unit 1 in the figure is the water inlet end of the anode plate row , which is connected to the water inlet 2 of the cooling water pipeline, and a connecting piece 21 is arranged at the joint. Connectors 31 are provided at each location, and connecting elbows 4 are provided between the free ends of every two adjacent anode plate units 1 for connecting the hollow structures of two adjacent anode plate units 1 .

[0032] Generally, the material of the anode plate unit 1 can be binocular stainless steel, 316L, conductive glass fiber reinforced plastics, composite anti-corrosion materials, polymer materials and the like. In this embodiment, 316L stainless steel is taken as an example, and a hollow anode plate unit 1 is formed by four steel plates 5, which is a flat ...

Embodiment 2

[0035] The anode plate unit 1 of the present embodiment is a diaphragm type, such as image 3As shown, the steel pipe 6 is installed in an approximately circular place, and the cooling water is passed through the steel pipe 6, the cooling water flow area is reduced, and the power consumption of the circulating water pump is reduced; the diaphragm is equivalent to a fin, which increases the heat exchange area, The heat exchange effect has been further improved; the thickness of the thinnest part of the diaphragm is very small, and the fit is relatively tight, which increases the rigidity of the anode plate and has a long service life.

[0036] The wet electrostatic precipitator provided by the present invention includes a housing with a cavity inside, and an anode plate and a cathode system are arranged in the housing, wherein: the anode plate is a non-cleaning anode plate as described in the above embodiment, and the anode plate and the cathode system An electric field is form...

Embodiment 3

[0038] Such as Figure 4 As shown, the electrostatic precipitator of this embodiment includes a housing, the inside of the housing is a cavity, and the housing is provided with an anode plate and a cathode system 8, wherein: the anode plate is the non-cleaning anode plate described in the above embodiment, here No need to go into details, after the cathode system 8 is energized, an electric field is generated between the cathode system 8 and the anode plate, and the dust is negatively charged in the electric field, and then is adsorbed onto the anode plate. The flue gas from the desulfurization absorption tower enters the interior of the electrostatic precipitator and flows through the electric field space. The gas flow direction is parallel to the anode plate and perpendicular to the cathode line in the cathode system 8. The liquid droplets and dust are collected and attached to the surface of the anode plate after being charged. The heat exchange reduces the temperature of ...

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