CN211587055U - Desulfurization-wet-type electrostatic precipitator all-in-one belt cleaning device - Google Patents

Abstract

The utility model relates to the technical field of desulfurization and dust removal, and discloses a desulfurization-wet electrostatic precipitator integrated machine cleaning device, comprising a spray tower, a spray pipe arranged in the spray tower, and a honeycomb wet electrostatic precipitator located above the spray pipe The honeycomb wet electrostatic precipitator includes a honeycomb anode and a cathode located in the honeycomb anode. The top of the honeycomb anode is provided with a water distribution mechanism for distributing water along the inner wall of the honeycomb anode, and a diversion mechanism located below the water distribution mechanism. The utility model has the following advantages and effects: the desulfurization-wet electrostatic precipitator integrated machine can improve the desulfurization and dust removal efficiency, the honeycomb anode is provided with a water distribution mechanism and a diversion mechanism, and a uniform water film can be formed in each honeycomb anode It can take away the dust adsorbed on the honeycomb anode, and the water film also has a certain adsorption effect on the dust, which improves the dust removal efficiency while keeping the honeycomb anode clean.

Description

A desulfurization-wet electrostatic precipitator integrated cleaning device

technical field

The utility model relates to the technical field of desulfurization and dust removal, in particular to a desulfurization-wet electrostatic precipitator integrated machine cleaning device.

Background technique

In the coal-fired boiler desulfurization and dust removal industry, dust removal and desulfurization equipment is widely used, which can be wet dust removal, wet desulfurization, or integrated dust removal, desulfurization and dust removal. The wet desulfurization dust removal and flue gas purification has high removal efficiency of sulfur dioxide and thorough exhaust gas purification.

The desulfurization-wet electrostatic precipitator integrated machine can remove sulfur and dust from the sulfur-containing boiler exhaust gas, and the exhaust gas purification effect is good. The working principle is that the flue gas passes through a high-voltage electric field, and the high-voltage electric field charges the dust and droplets in the flue gas to form charged ions. Neutral dust and fog particles are formed, which are deposited on the electrode and are removed by agglutination and falling. The dust adsorbed on the honeycomb anode tube is removed by regular spraying and washing. Because the inner diameter and length of the honeycomb anode tube are small, the The direct spray method to flush the dust in the tube consumes a lot of water, and it is not easy to wash it clean. The dust adhered to the anode tube will cause corrosion to the anode tube, and will also affect the adsorption capacity of the anode tube for charged fume and reduce the dust removal efficiency. The wet electrostatic precipitator is cleaned by spray cleaning, which often causes flashover and short circuit in the working state. Since most of the honeycomb wet electrostatic precipitator anodes are made of conductive glass fiber reinforced plastic, its electrical conductivity is far better. The electrostatic precipitator is weaker than the metal material, and its ability to withstand spark discharge and arc discharge is far weaker than that of the metal electrostatic precipitator, which causes the honeycomb wet electrostatic precipitator to be easily damaged.

Utility model content

The purpose of the utility model is to provide a desulfurization-wet electrostatic precipitator integrated machine cleaning device, which has the effects of good cleaning effect and less water consumption.

The above technical purpose of the present utility model is achieved through the following technical solutions: including a spray tower, a spray pipe arranged in the spray tower, and a honeycomb wet electrostatic precipitator located above the spray pipe, the The honeycomb wet electrostatic precipitator includes a honeycomb anode and a cathode located in the honeycomb anode. The top of the honeycomb anode is provided with a water distribution mechanism for distributing water along the inner wall of the honeycomb anode, and a guide located under the water distribution mechanism. flow agency.

By adopting the above technical solution, the sulfur-containing flue gas enters from the bottom of the spray tower, and the absorbing liquid is sprayed downward in the spray pipe to absorb the sulfur and dust in the flue gas, and the flue gas after spray treatment carries a large amount of moisture The formed fine droplets rise with the airflow and enter the honeycomb wet electrostatic precipitator. The droplets are charged at the cathode to form charged particles, and the charged particles move to the positively charged honeycomb anode and discharge after reaching the honeycomb anode. The honeycomb anode is provided with a water distribution mechanism, which continuously distributes water into the honeycomb anode, and a diversion mechanism is arranged below the water distribution mechanism to form a uniform water film on the surface of the honeycomb anode, and the charged particles move to the honeycomb anode. After forming neutral dust and mist particles, they are washed by the water flow and will not be deposited on the honeycomb anode. The water flows downward and mixes with the water in the spray pipe to further absorb the sulfur and dust in the flue gas.

The utility model is further provided as follows: the water distribution mechanism comprises a hexagonal water distribution pipe embedded in the honeycomb anode, a water inlet pipe connected with the water distribution pipe, and a plurality of water distribution holes are evenly arranged below the water distribution pipe.

The utility model is further arranged as follows: a water inlet pipe is connected to the intersection of three adjacent hexagonal water distribution pipes.

The utility model is further configured as follows: the diversion mechanism comprises an annular water collecting tank located under the hexagonal water distribution pipe, an organ whose upper end is connected with the annular water collecting tank and the lower end is connected with the inner wall of the honeycomb anode type deflector.

By adopting the above technical solution, water can be distributed to each honeycomb of the honeycomb anode through the hexagonal water distribution pipe, and the water distribution is uniform, and a water inlet pipe is connected at the intersection of three adjacent hexagonal water distribution pipes, which can reduce the number of water inlet pipes The structure of the device is simpler. The water distribution mechanism is also provided with a diversion mechanism. The water of the hexagonal water distribution pipe first flows into the annular water collecting tank, and then flows evenly into the honeycomb along the organ-shaped deflector under the water collecting tank. On the inner wall of the honeycomb anode, multiple streams of water hit the inner wall and then disperse to form a uniform water film on the inner wall. The charged particles that move to the honeycomb anode are absorbed by the water film and remain with the water film, which can achieve a relatively high temperature. Good dust removal effect.

The utility model is further provided as follows: a water collecting tank is arranged below the spray tower, a return pipe connected with one end of the water collecting tank and the other end of the spray pipe, and a return pump connected to the return pipe.

The utility model is further arranged as follows: the return pipe is connected with the water distribution mechanism.

By adopting the above technical solution, the water in the water distribution mechanism and the spray pipe falls into the water collecting tank after passing through the spray tower. At the spray pipe, the water consumption can be reduced, thereby reducing the amount of sewage generated.

The beneficial effects of the present utility model are:

1. The integrated desulfurization and wet electrostatic precipitator can realize desulfurization and dust removal. The honeycomb wet electrostatic precipitator is set in the spray tower, and the sulfur-containing flue gas after spray treatment enters the honeycomb wet electrostatic precipitator for further dust removal. It can improve the desulfurization and dust removal efficiency. The water used for washing the honeycomb anode in the honeycomb wet electrostatic precipitator flows downward and is mixed with the spray water, which realizes the reuse of the washing wastewater. At the same time, the spray water volume increases, which can improve the desulfurization and dust removal efficiency;

2. The honeycomb anode is provided with a water distribution mechanism and a diversion mechanism, which can form a uniform water film in each honeycomb anode.

The dust adsorbed on the honeycomb anode can be taken away, and the water film also has a certain adsorption effect on the dust, which improves the dust removal efficiency while keeping the honeycomb anode clean.

3. The diversion mechanism guides the effluent of the water distribution mechanism into the inner wall of the honeycomb anode evenly, and the water flow will not touch the cathode, which can avoid the flashover and short circuit of the wet electrostatic precipitator, and prolong the service life of the honeycomb anode.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some implementations of the present invention. For example, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of this embodiment.

Figure 2 is a schematic structural diagram of a honeycomb wet electrostatic precipitator.

Figure 3 is a schematic diagram of the explosion of the honeycomb wet electrostatic precipitator.

FIG. 4 is a schematic structural diagram of a flow guiding mechanism.

Figure 5 is a schematic diagram of the structure of the water distribution mechanism.

In the figure, 1, spray tower; 2, spray pipe; 3, packing; 4, honeycomb wet electrostatic precipitator; 41, honeycomb anode; 42, cathode; 43, water distribution mechanism; 431, water distribution pipe; 432, Water inlet pipe; 433, water distribution hole; 44, diversion mechanism; 441, water collection tank; 442, deflector 5, water collection tank; 6, return pump; 7, return pipe.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Example: A desulfurization-wet electrostatic precipitator integrated cleaning device is shown in Figure 1, including a spray tower 1, a spray pipe 2 is arranged in the spray tower 1, a filler 3 is arranged under the spray pipe 2, and the sulfur-containing After the flue gas enters the spray tower 1 from below the spray tower 1, the absorbing liquid sprayed in the spray pipe 2 removes the dust and sulfur in the sulfur-containing flue gas. A honeycomb wet electrostatic precipitator 4 is arranged above the spray pipe 2. After spraying, the flue gas form mist droplets enter the honeycomb wet electrostatic precipitator 4 with the airflow to be further processed to remove the mist droplets and dust.

As shown in FIG. 2 , FIG. 3 and FIG. 5 , the honeycomb electrostatic precipitator includes a honeycomb anode 41 and a cathode 42 located in the honeycomb anode 41 . The top of the honeycomb anode 41 is provided with a The water distribution mechanism 43 is provided with a diversion mechanism 44 below the water distribution mechanism 43. The water distribution mechanism 43 includes a hexagonal water distribution pipe 431 embedded in the honeycomb anode 41, and the adjacent three hexagonal water distribution pipes 431 communicate with each other and intersect. A water inlet pipe 432 is connected to the bottom of the water distribution pipe 431 , and a number of water distribution holes 433 are evenly arranged at the bottom of the water distribution pipe 431 .

As shown in FIG. 2, FIG. 3 and FIG. 4, the guide mechanism 44 includes a ring-shaped water collecting tank 441 located under the water distribution pipe 431. The lower end of the water collecting tank 441 is provided with an organ-shaped guide plate 442. The inner wall of the anode 41 is connected, and the water in the water distribution pipe 431 flows to the water collecting tank 441 and then flows along the deflector 442 into a plurality of water flows to the inner wall of the honeycomb anode 41. The inner wall of 41 forms a uniform water film.

As shown in FIG. 1 , a water collection tank 5 is arranged below the spray tower 1 , and a return pipe 7 is connected to the water collection tank 5 through a return pump 6 .

The working principle of a desulfurization-wet electrostatic precipitator integrated machine cleaning device: the sulfur-containing flue gas enters from the bottom of the spray tower 1, and the spray pipe 2 sprays the absorption liquid downward to absorb the sulfur and dust in the flue gas, and is treated by spraying The latter flue gas carries a large amount of moisture and forms fine mist droplets that rise with the air flow and enter the honeycomb wet electrostatic precipitator 4. The mist droplets are charged at the cathode 42 to form charged particles, and the charged particles move toward the positively charged honeycomb-shaped particles. The anode 41 moves and discharges after reaching the honeycomb anode 41. The honeycomb anode 41 is provided with a water distribution mechanism 43 to continuously distribute water into the honeycomb anode 41. The surface of the anode 41 forms a uniform water film, and the charged particles move to the honeycomb anode 41 to form neutral dust and mist particles, which are then washed by the water flow and will not be deposited on the honeycomb anode 41. The water in the spray pipe 2 is mixed to further absorb the sulfur and dust in the flue gas, so as to realize the treatment of the sulfur-containing flue gas.

Claims (6)

1. A desulfurization-wet electrostatic precipitator integrated machine cleaning device, characterized in that: comprising a spray tower (1), a spray pipe (2) arranged in the spray tower (1), a spray pipe (2) located in the spray tower (1) A honeycomb wet electrostatic precipitator (4) above the pipe (2), the honeycomb wet electrostatic precipitator (4) comprising a honeycomb anode (41) and a cathode (42) located in the honeycomb anode (41), so The top of the honeycomb anode (41) is provided with a water distribution mechanism (43) for distributing water along the inner wall of the honeycomb anode (41), and a guide mechanism (44) located below the water distribution mechanism (43). 2. The desulfurization-wet electrostatic precipitator integrated cleaning device according to claim 1, wherein the water distribution mechanism (43) comprises a hexagonal water distribution pipe (43) embedded in the honeycomb anode (41). 431) A water inlet pipe (432) connected to the water distribution pipe (431), and a plurality of water distribution holes (433) are evenly arranged below the water distribution pipe (431). 3. A desulfurization-wet electrostatic precipitator integrated machine cleaning device according to claim 2, characterized in that: a water inlet pipe (432) is connected at the intersection of three adjacent hexagonal water distribution pipes (431). 4. A desulfurization-wet electrostatic precipitator integrated cleaning device according to claim 2, characterized in that: the diversion mechanism (44) comprises an annular water collecting tank (441) located under the water distribution pipe (431) ), an organ-shaped deflector (442) whose upper end is connected with the annular water collecting tank (441) and whose lower end is connected with the inner wall of the honeycomb anode (41). 5. A desulfurization-wet electrostatic precipitator integrated machine cleaning device according to claim 1, characterized in that: a sump (5) is provided below the spray tower (1), and one end is connected to the sump (5). ) a return pipe (7) connected to the spray pipe (2) at the other end, and a return pump (6) connected to the return pipe (7). 6 . The desulfurization-wet electrostatic precipitator integrated cleaning device according to claim 5 , wherein the return pipe ( 7 ) is connected to the water distribution mechanism ( 43 ). 7 .

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