CN218516933U - Wet electrostatic dust collector - Google Patents

Abstract

The utility model discloses a wet electrostatic precipitator, including the wet electrostatic precipitator casing, be equipped with a plurality of groups dust collecting module in the casing, casing upper portion is equipped with the gas vent, the casing lower part is equipped with the air inlet, and every dust collecting module includes the rectangle ring as the frame, sets up the positive pole pipe that a plurality of mutual close-proximatees set up in the rectangle ring, and positive pole pipe center is equipped with the corona wire, and its length direction's of perpendicular to cross sectional shape of positive pole pipe is the hexagon for two annulars and interior ring circular outer loop. The utility model discloses the form of circle foreign side is adopted to the anode tube for the electric field that forms between corona wire negative pole and anode tube positive pole is more even, and the entrapment dust effect is better, and dust removal effect obtains improving.

Description

A wet electrostatic precipitator

technical field

The utility model relates to a wet electrostatic precipitator.

Background technique

Wet electrostatic precipitator is an electrostatic precipitator that uses water spray or overflow water to form a water film on the surface of the dust collector to realize the dust removal of the electrode plate. Wet dust cleaning can avoid the re-flying of deposited dust and achieve high dust removal efficiency. Because there is no rapping device, the operation is more stable. The patent with the publication number CN210207224U: a wet electrostatic precipitator, the bottom of the wet electrostatic precipitator is provided with an air inlet, the top of the wet electrostatic precipitator is provided with an air outlet, and the wet electrostatic precipitator is equipped with an air outlet. A dust collection unit is provided inside; the dust collection unit includes at least one dust collection module, the dust collection module includes a vertically arranged anode tube and a corona wire arranged in the center of the anode tube, and the anode tube is a regular hexagon Anode tubes, adjacent regular hexagonal anode tubes share one side; at least one insulating box is arranged outside the tower top of the wet electrostatic precipitator, and the insulating box is connected to the corona wire of the dust collection unit. Although it uses corona wires instead of flexible electrodes, it overcomes the defect that flexible electrodes need to be hung by heavy hammers, and there is no need to install bottom electrode positioning and limiting devices at the bottom of the dust collection unit, which overcomes the problem caused by the insulation failure of positioning and limiting devices. The problem of temporary short circuit improves the stability of wet electrostatic precipitator operation. However, for the form of the honeycomb anode tube, it is still in the form of a regular hexagonal tube, and the generated electric field is not uniform, and a good dust removal effect cannot be achieved.

Utility model content

The purpose of this utility model is to overcome the defects existing in the prior art, and to provide a wet electrostatic precipitator. The electric field formed between the wire (cathode) and the anode of the anode tube is more uniform, the dust collection effect is better, and the dust removal effect is improved.

In order to achieve the above purpose, the technical solution of the utility model is to design a wet electrostatic precipitator, which includes a wet electrostatic precipitator shell, and several groups of dust collection modules are arranged in the shell, the upper part of the shell is provided with an exhaust port, and the lower part of the shell is There is an air inlet, and each dust collection module includes a rectangular ring as a frame. Several anode tubes are arranged next to each other in the rectangular ring. The center of the anode tube is provided with a corona wire. The cross section of the anode tube perpendicular to its length direction The shape is double ring and the inner ring is circular and the outer ring is hexagonal. The anode tube adopts the form of an inner circle and an outer square (accurately, an inner circle and an outer hexagon), so that the electric field formed between the corona wire (cathode) and the anode of the anode tube is more uniform, and the airflow can be compressed in the flow field And the airflow expands, which in turn affects the strength of the ion wind vortex on the disturbance of the flow field, and it is easier to capture some dust moving along the direction of the airflow, thereby improving the dust removal efficiency of the dust collector, better dust collection effect, and improved dust removal effect.

A further technical solution is that the rectangular ring is arranged vertically and its lower end face is inclined to the horizontal plane, the upper end face of the rectangular ring is a plane parallel to the horizontal plane; the lower end face of the anode tube is also inclined to the horizontal plane. The setting of the rectangular ring is conducive to the installation and maintenance of the wet electrostatic precipitator, and also reduces the difficulty of fixing the corona wire at the center of each regular hexagonal anode tube, thereby eliminating the need for electrode positioning and limiting devices at the bottom of the dust collection module. The temporary short circuit problem caused by the insulation problem enables the wet electrostatic precipitator to operate stably; and the setting of the slope on the lower end of the rectangular ring is more convenient for the installation of the anode tube.

A further technical solution is that each dust collection module includes a square tube as an outer frame, and the square tube is filled with several rectangular rings arranged adjacent to each other. Each dust collection module is set to be composed of several rectangular rings, which is more convenient for the arrangement and installation of the anode tubes.

A further technical solution is that the adjacent square tubes are fixedly connected, and the square tube closest to the wet electrostatic precipitator shell is fixedly connected on the inner side wall of the wet electrostatic precipitator shell; the corona wire is made of stainless steel wire, and the anode The tube is made of fiberglass.

A further technical solution is that the upper end of the corona wire is set beyond the anode tube and the excess end is fixedly connected to the insulating box on the top of the wet electrostatic precipitator shell, and is located between the top wall of the wet electrostatic precipitator shell and the upper end of the anode tube. There is a beam fixedly connected to the inner wall of the shell of the wet electrostatic precipitator, and the corona wire is also fixedly connected to the beam. Using corona wires instead of flexible electrodes overcomes the defect that flexible electrodes need to be hung by heavy hammers.

The utility model has the advantages and beneficial effects that: the anode tube adopts the form of an inner circle and an outer square (to be exact, an inner circle and an outer hexagon), so that the electric field formed between the corona wire (cathode) and the anode of the anode tube is more compact. Uniformity can make the airflow shrink and expand in the flow field, thereby affecting the strength of the ion wind vortex on the flow field disturbance, and it is easier to capture some dust moving along the direction of the airflow, thereby improving the dust removal efficiency of the dust collector and capturing The dust effect is better and the dust removal effect is improved.

The setting of the rectangular ring is conducive to the installation and maintenance of the wet electrostatic precipitator, and also reduces the difficulty of fixing the corona wire at the center of each regular hexagonal anode tube, thereby eliminating the need for electrode positioning and limiting devices at the bottom of the dust collection module. The temporary short circuit problem caused by the insulation problem enables the wet electrostatic precipitator to operate stably; and the setting of the slope on the lower end of the rectangular ring is more convenient for the installation of the anode tube.

Using corona wires instead of flexible electrodes overcomes the defect that flexible electrodes need to be hung by heavy hammers. Each dust collection module is set to be composed of several rectangular rings, which is more convenient for the arrangement and installation of the anode tubes.

Description of drawings

Fig. 1 is the schematic diagram of a kind of wet electrostatic precipitator of the present utility model;

Fig. 2 is the front view of Fig. 1;

Fig. 3 is the top view of square tube in Fig. 1;

Fig. 4 is a perspective view of the rectangular ring in Fig. 3 .

In the figure: 1. Shell of wet electrostatic precipitator; 2. Exhaust port; 3. Air inlet; 4. Rectangular ring; 5. Anode tube; 6. Corona wire; 7. Square tube; 8. Insulation box; 9. Beam.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is further described. The following examples are only used to illustrate the technical solution of the utility model more clearly, but not to limit the protection scope of the utility model.

As shown in Figures 1 to 4, the utility model is a wet electrostatic precipitator, including a wet electrostatic precipitator housing 1, several groups of dust collection modules are arranged in the housing, an exhaust port 2, a housing The lower part of the body is provided with an air inlet 3, and each dust collection module includes a rectangular ring 4 as a frame, and a plurality of anode tubes 5 arranged adjacent to each other are arranged in the rectangular ring 4, and a corona wire 6 is arranged in the center of the anode tube 5, and the anode tube The cross-sectional shape of 5 perpendicular to its length direction is a double ring and the inner ring is a circle and the outer ring is a hexagon. The rectangular ring 4 is vertically arranged and its lower end surface is an inclined plane inclined to the horizontal plane. The upper end surface of the rectangular ring 4 is a plane parallel to the horizontal plane; the lower end surface of the anode tube 5 is also an inclined plane inclined to the horizontal plane. Each dust collection module includes a square tube 7 as an outer frame, and the square tube 7 is filled with several rectangular rings 4 arranged adjacent to each other. Adjacent square tubes 7 are fixedly connected, and the square tube 7 closest to the wet electrostatic precipitator housing 1 is fixedly connected on the inner side wall of the wet electrostatic precipitator housing 1; the corona wire 6 is made of stainless steel wire, and the anode tube 5 is made of fiberglass material. The upper end of the corona wire 6 exceeds the anode tube 5 and is fixedly connected to the insulating box 8 on the top of the wet electrostatic precipitator shell 1, and is located between the inner top wall of the wet electrostatic precipitator shell 1 and the upper end of the anode tube 5 A beam 9 fixedly connected to the inner wall of the wet electrostatic precipitator housing 1 is provided, and the corona wire 6 is also fixedly connected to the beam 9 .

It works as follows:

An electric field is formed between the corona wire (cathode) and the anode of the anode tube, and the discharge electrode generates a corona discharge, which ionizes the air molecules and instantly generates a large number of electrons and positive and negative ions. When the particles in the flue gas pass through the space, they are forced to be charged, and the particles condense and move directionally under the action of the electric field force to achieve the purpose of capture.

The installation and fixing method of the anode tube is as follows: first, a baffle plate matching the size and shape of the lower end surface (or larger than the size of the lower end surface) is set on the inclined lower end surface of the rectangular ring, and then the anode tubes on the hexagonal outer wall are placed one by one. Put it into the rectangular ring, because the lower end face is inclined, so each anode tube is next to each other after being placed in the rectangular ring, and then the worker welds on the top of the rectangular ring, then removes the baffle plate below, and then welds on the bottom to make the anode The tubes are welded to the rectangular ring, and the adjacent anode tubes are also welded and fixedly connected to each other {in order to prevent workers from climbing up and down, the rectangular ring can also be placed horizontally, so that only the end of the inclined plane needs to be blocked by the baffle, and then Weld the anode tube at the other end, then take off the baffle and weld the anode tube at the other end}.

The above is only the preferred embodiment of the utility model, and it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, some improvements and modifications can also be made. And retouching should also be regarded as the protection scope of the present utility model.

Claims (5)

1. The utility model provides a wet electrostatic precipitator which characterized in that, includes the wet electrostatic precipitator casing, is equipped with a plurality of groups dust module in the casing, and casing upper portion is equipped with the gas vent, and the casing lower part is equipped with the air inlet, and every dust module of gathering includes the rectangular ring as the frame, sets up the anode tube that a plurality of mutual close neighbours set up in the rectangular ring, and the anode tube center is equipped with the corona wire, and its length direction's of perpendicular to of anode tube cross-sectional shape is double ring shape and the inner ring is circular outer ring for the hexagon.

2. The wet electrostatic precipitator of claim 1, wherein the rectangular ring is vertically disposed, and the lower end surface of the rectangular ring is an inclined surface inclined to the horizontal plane, and the upper end surface of the rectangular ring is a plane parallel to the horizontal plane; the lower end surface of the anode tube is also an inclined plane which is inclined with the horizontal plane.

3. A wet electrostatic precipitator as claimed in claim 2, wherein each dust collecting module comprises a square pipe as an outer frame, and the square pipe is filled with a plurality of rectangular rings arranged adjacent to each other.

4. The wet electrostatic precipitator of claim 3, wherein adjacent square tubes are fixedly connected, and the square tube closest to the wet electrostatic precipitator housing is fixedly connected to the inner side wall of the wet electrostatic precipitator housing; the corona wire is made of a stainless steel wire, and the anode tube is made of a glass fiber reinforced plastic material.

5. A wet electrostatic precipitator as claimed in claim 1 or 4, wherein the corona wire is provided with an upper end thereof extending beyond the anode tube and fixedly connected to the insulating box at the top of the wet electrostatic precipitator casing, a cross member fixedly connected to the inner side wall of the wet electrostatic precipitator casing is provided between the top wall of the wet electrostatic precipitator casing and the upper end of the anode tube, and the corona wire is further fixedly connected to the cross member.

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