CN204544465U - A kind of self-cleaning rotating anode arrangement for wet electric cleaner - Google Patents

Abstract

The utility model provides a self-cleaning rotating anode device for a wet electrostatic precipitator, which includes a self-cleaning water pool, and alternately arranged water flow baffles and rotating brushes for enhancing water scouring capability, the rotating anode wet electric The lower part of the flexible anode of the dust collector is directly submerged into the cleaning pool. On the one hand, the wetting of the anode plate is realized, thereby realizing wet electrostatic precipitation; Self-cleaning; compared with the traditional spray cleaning device, the self-cleaning pool device of the utility model can effectively avoid the instability of the electric field, thereby ensuring a uniform and continuous electric field distribution, which is conducive to simplifying the structure of the device and improving the reliability of equipment operation; flexible The combined use of electrodes and self-cleaning pools, compared with traditional high-pressure spray systems, reduces equipment costs and saves water, and can effectively realize the self-cleaning of wet electrostatic precipitators.

Description

A self-cleaning rotating anode device for wet electrostatic precipitator

technical field

The utility model relates to the field of wet electric dust collectors, in particular to a self-cleaning rotating anode device for wet electric dust collectors.

Background technique

In the field of electrostatic precipitator technology, it is divided into dry and wet electrostatic precipitators according to the cleaning method. Dry-type electrostatic precipitators generally adopt the method of mechanical vibration to remove dust. During the process of dust removal, secondary carryover is easy to occur; at the same time, dry-type electrostatic precipitators have certain requirements for the specific resistance range of dust particles. Dust with higher specific resistance Particles will form back corona, and dust with low specific resistance is prone to secondary flying, which will affect the normal operation of the equipment.

In the existing wet electrostatic precipitator, because the anode plate is not conductive, it needs to consume a large amount of water to continuously spray the anode plate to form a water film to conduct electricity. Moreover, the splashing of water droplets and water mist caused by spraying can easily affect the electric field strength and corrode equipment, thereby affecting the dust removal efficiency; at the same time, the existing wet electrostatic precipitator with fixed plates is not effective in removing PM2.5 particles and acid mist in flue gas. ideal.

Based on the material selection of flexible insulating hydrophobic fiber fabric dust collector and the formation mechanism of surface water film as the breakthrough point, and with the ultimate goal of controlling the emission of pollutants from coal-fired desulfurization flue gas, a flexible dust collector for coal-fired desulfurization flue gas is proposed. The technical route of deep purification.

Utility model content

The purpose of this utility model is to provide a self-cleaning pool device for a wet electrostatic precipitator, which can not only ensure that the wet electrostatic precipitator has a good removal effect on PM2.5 and acid mist, but also effectively avoid the traditional spray wet electrostatic precipitator. Electric field instability and equipment corrosion caused by the device.

In order to achieve the above object, the technical scheme of the utility model is as follows:

A self-cleaning rotating anode device for a wet electrostatic precipitator, including a cleaning pool (1), several sets of wheels (2), corona wires (4), turbulence baffles (5), and self-cleaning pool partitions (6); each set of wheels includes a driving wheel (21) and a driven wheel (22), and the driving wheel (21) and the driven wheel (22) are connected by a closed belt-shaped flexible dust-collecting anode (3): the The top of the cleaning pool (1) is provided with a self-cleaning pool partition (6), the driven wheel (22) is located below the self-cleaning pool partition (6), and the driving wheel (21) is located above the self-cleaning pool partition (6). The self-cleaning pool partition (6) is provided with a hole for the closed belt-shaped flexible dust-collecting anode (3) to pass through; the outer side and the inside of the closed belt-shaped flexible dust-collecting anode (3) in the wheel set (2) Corona wires (4) parallel to the closed belt-shaped flexible dust-collecting anode (3) are provided; turbulence baffles (5) corresponding to the wheel sets are alternately arranged on the side wall opposite to the cleaning pool, so that The turbulence baffle (5) is located between the self-cleaning pool partition and the driven wheel, and passes through the closed belt-shaped flexible dust-collecting anode (3).

A water inlet (7) and a water outlet (8) are respectively provided at the lower part of the cleaning pool (1).

The self-cleaning rotating anode device also includes a rotating brush (9), which is arranged on the side wall of the cleaning pool opposite to the turbulent flow baffle (5), and is connected to the turbulent flow baffle (5). ) on the same straight line.

The wheel sets (2) are 2 or more sets, and corona wires (4) are arranged between adjacent wheel sets, and the wheel sets and the corona wires (4) are equally spaced.

The material of the closed belt-shaped flexible dust-collecting anode (3) is polypropylene, acrylonitrile homopolymer, polyester, polyphenylene sulfide, polytetrafluoroethylene or glass fiber.

The driven wheel (22) is fixed on the inner wall of the cleaning pool (1) by a spring.

In the utility model: when in use, water is injected into the cleaning pool, and the lower part of the closed strip-shaped flexible dust-collecting anode is directly submerged in the water, and the turbulent water from the self-cleaning pool realizes the wetting of the flexible dust-collecting anode, and at the same time, the wet electricity has a positive effect on the flexible dust-collecting anode. Anode self-cleaning. It should be noted that during use, the distance between the corona wire and the liquid surface of the self-cleaning pool is greater than the distance between the corona pole and the flexible dust-collecting anode.

The closed belt-shaped flexible dust-collecting anode directly passes through the pre-set pores on the partition plate of the cleaning pool to realize the closed rotation of the closed belt-shaped flexible dust-collecting anode.

The closed flexible dust-collecting anode is made of organic polymer flexible materials, such as polypropylene (polypropylene), acrylonitrile homopolymer, polyester (polyester), polyphenylene sulfide, polytetrafluoroethylene, glass fiber, etc. The flexible insulating fiber filter material after any treatment cannot meet the requirements of electrostatic dust collection conductivity, so water can achieve a good wetting effect on the fiber filter material is the key to the realization of the wet electrostatic precipitator of the flexible fiber.

The turbulent flow baffle is fixed on the opposite side wall of the cleaning pool, and is arranged between the partition of the cleaning pool and the driven wheel group, so that the turbulent water flows between the turbulent flow baffles, which can well clean the flexible dust-collecting anode plate Both sides are flushed to realize the cleaning of the flexible dust-collecting anode.

The turbulent flow of the cleaning pool is realized by rotating the rotating brush fixed on the frame of the wet electrostatic precipitator. The rotating brush accelerates the water flow, and the position height is consistent with the turbulent flow baffle. The use of the rotating brush and the turbulent flow baffle can The cleaning water can wash the flexible dust-collecting anode along the predetermined path, and the self-cleaning of the flexible dust-collecting anode can be realized by setting turbulent flow baffles and rotating brushes.

The driven wheel is fixed on the inner wall of the cleaning pool by a spring, and the spring is convenient for the telescopic movement of the driven wheel. The primary condition of the utility model is that the turbulent water can realize the wetting effect on the flexible dust-collecting anode. In order to avoid the shrinkage of the flexible dust-collecting anode caused by wetting, a movable telescopic device should be installed on the driven wheel group.

Adopt the above-mentioned technical scheme, the effect of the technology of the present utility model: the setting of self-cleaning pool device, through the wetting of closed belt-shaped dust-collecting anode by turbulent water, ensure the continuity of the electric field of the wet electrostatic precipitator; The function is to realize the cleaning of the closed belt-shaped flexible dust-collecting anode. While ensuring the continuity of the electric field of the wet electrostatic precipitator, it can also realize the self-cleaning of the rotating anode. Compared with the traditional spray wet electrostatic precipitator, it saves water and electricity, and at the same time, it can effectively avoid the electric field discontinuity and equipment corrosion caused by spray water. The flexible dust-collecting anode of the utility model is made of organic fiber material, which is easy to be closed and continuous, easy to conduct electricity when wet, and has a uniform electric field, which can effectively capture PM2.5 and smoke acid mist.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a top view and a schematic diagram of the turbulent flow direction after the wheel group is removed from the self-cleaning pool of the utility model;

Among them: 1. Cleaning pool, 2. Wheel set, 3. Closed continuous flexible dust collection anode, 4. Corona wire, 5. Turbulent flow baffle, 6. Self-cleaning pool partition, 7 Water inlet, 8 Water outlet, 9 rotating brushes, 21 driving wheels, and 22 driven wheels.

Detailed ways

The concrete implementation method of the present utility model is illustrated below in conjunction with accompanying drawing.

A self-cleaning rotating anode device for a wet electrostatic precipitator, including a cleaning pool (1), several sets of wheels (2), corona wires (4), turbulence baffles (5), and self-cleaning pool partitions (6); each set of wheels includes a driving wheel (21) and a driven wheel (22), and the driving wheel (21) and the driven wheel (22) are connected by a closed belt-shaped flexible dust-collecting anode (3): the The top of the cleaning pool (1) is provided with a self-cleaning pool partition (6), the driven wheel (22) is located below the self-cleaning pool partition (6), and the driving wheel (21) is located above the self-cleaning pool partition (6). The self-cleaning pool partition (6) is provided with a hole for the closed belt-shaped flexible dust-collecting anode (3) to pass through; the outer side and the inside of the closed belt-shaped flexible dust-collecting anode (3) in the wheel set (2) Corona wires (4) parallel to the closed belt-shaped flexible dust-collecting anode (3) are provided; turbulence baffles (5) corresponding to the wheel sets are alternately arranged on the side wall opposite to the cleaning pool, so that The turbulent flow baffle (5) is located between the self-cleaning pool partition and the driven wheel, and passes through the closed belt-shaped flexible dust-collecting anode (3). The length of the turbulent baffle (5) is the width of the cleaning pool (1). 3/4 is appropriate.

A water inlet (7) and a water outlet (8) are respectively provided at the lower part of the cleaning pool (1).

The self-cleaning rotating anode device also includes a rotating brush (9), which is arranged on the side wall of the cleaning pool opposite to the turbulent flow baffle (5), and is connected to the turbulent flow baffle (5). ) on the same straight line.

The wheel sets (2) are 2 or more sets, and corona wires (4) are arranged between adjacent wheel sets, and the wheel sets and the corona wires (4) are equally spaced.

The material of the closed belt-shaped flexible dust-collecting anode (3) is polypropylene, acrylonitrile homopolymer, polyester, polyphenylene sulfide, polytetrafluoroethylene or glass fiber.

The driven wheel (22) is fixed on the inner wall of the cleaning pool (1) by a spring.

During specific implementation, the side wall of the wet electrostatic precipitator can be used as the side wall of the cleaning pool, and the driving wheel and the driven wheel are directly fixed on the side wall of the wet electrostatic precipitator.

The utility model includes a self-cleaning water pool, and alternately arranged water flow baffles and rotating brushes to strengthen the water flow scouring ability. The lower part of the flexible anode of the rotating anode wet electrostatic precipitator is directly submerged in the cleaning water pool. Wet, so as to realize the wet electrostatic precipitator, on the other hand, the dust particles deposited on the anode plate are cleaned by the scouring action of the water flow, so as to realize the self-cleaning of the rotating anode; the self-cleaning pool device of the utility model is compared with the traditional spraying The cleaning device can effectively avoid the instability of the electric field, thereby ensuring a uniform and continuous electric field distribution, which is conducive to simplifying the structure of the device and improving the reliability of the equipment operation; the combination of flexible electrodes and self-cleaning pools, , reduce equipment cost, save water, and can effectively realize the self-cleaning of the wet electrostatic precipitator.

As shown in Figure 1, the dust-collecting anode is made of organic polymer flexible material, which can be effectively wetted and cleaned by turbulent water. Shown is a set of 3 rotating anode devices. When the dust-laden airflow comes from the direction parallel to the dust-collecting anode, it is charged when passing through the corona wire. The rotation of the anode, when rotated into the self-cleaning tank, is cleaned by turbulent water. This can not only ensure an effective and uniform electric field, but also realize self-cleaning of the integrated anode.

As shown in Figure 2, it includes a turbulent flow baffle and a rotating brush. The figure shows the turbulent flow direction of the cleaning water. The cleaning water forms a turbulent flow with the rotation of the rotating brush, resulting in a certain scouring capacity, so that the deposited on the flexible dust collection The dust on the anode is cleaned.

Since the dust-collecting anode will shrink and deform after wetting, the fixed part of the driven wheel is installed with a telescopic device, that is, a spring, so that the dust-collecting anode does not shrink and deform when it is running, so that the flexible dust-collecting anode is in a state of natural expansion and contraction, ensuring the uniformity of the electric field.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that the technical solution of the utility model can be Modifications or equivalent replacements without departing from the spirit and scope of the technical solution of the utility model shall be covered by the claims of the utility model.

Claims (6)

1. for a self-cleaning rotating anode arrangement for wet electric cleaner, it is characterized in that: comprise cleaning pond (1), some groups of wheels (2), corona wire (4), turbulent baffle plate (5), self-cleaning pond dividing plate (6); Described wheels of often organizing comprise a driving wheel (21) and a driven pulley (22), driving wheel (21) is connected by flexible control of dust anode (3) of occlusive tape with driven pulley (22): described cleaning pond (1) top is provided with self-cleaning pond dividing plate (6), driven pulley (22) is positioned at below, self-cleaning pond dividing plate (6), driving wheel (21) is positioned at top, self-cleaning pond dividing plate (6), self-cleaning pond dividing plate (6) is provided with the hole passed for flexible control of dust anode (3) of occlusive tape; The outside of flexible control of dust anode (3) of the middle occlusive tape of described wheels (2) and inside thereof are provided with the parallel corona wire (4) of control of dust anode (3) flexible with occlusive tape; The sidewall that described cleaning pond is relative is alternatingly arranged with and wheels turbulent baffle plate (5) one to one, described turbulent baffle plate (5) between self-cleaning pond dividing plate and driven pulley, and passes flexible control of dust anode (3) of occlusive tape.

2., as claimed in claim 1 for the self-cleaning rotating anode arrangement of wet electric cleaner, it is characterized in that: described cleaning pond (1) bottom is respectively arranged with water inlet (7) and delivery port (8).

3. as claimed in claim 1 for the self-cleaning rotating anode arrangement of wet electric cleaner, it is characterized in that: described self-cleaning rotating anode arrangement also comprises rotating to turn brushes (9), described rotation turns brush (9) and is arranged on the cleaning basin side wall relative with turbulent baffle plate (5), and is located on the same line with turbulent baffle plate (5).

4. as claimed in claim 1 for the self-cleaning rotating anode arrangement of wet electric cleaner, it is characterized in that: described wheels (2) be 2 groups and more than, corona wire (4) is provided with, equal equidistant arrangement between described wheels, between corona wire (4) between adjacent wheels.

5. as claimed in claim 1 for the self-cleaning rotating anode arrangement of wet electric cleaner, it is characterized in that: the material of flexible control of dust anode (3) of described occlusive tape is polypropylene, acrylonitrile homopolymer, polyester, polyphenylene sulfide, polytetrafluoroethylene (PTFE) or glass fibre.

6. as claimed in claim 1 for the self-cleaning rotating anode arrangement of wet electric cleaner, it is characterized in that: described driven pulley (22) is fixed on cleaning pond (1) inwall by spring.