CN206184198U - Compound water smoke electric field clarifier - Google Patents

Abstract

The utility model relates to a flue gas purification treatment device, in particular to a composite water mist electric field purifier capable of generating a water mist electric field. The shell of the composite water mist electric field generator in the purifier is provided with a hanger on the top. A water mist generator and an insulating material connector are arranged below, and the lower end of the insulating material connector is connected with a discharge electrode fixing frame, and a high-voltage electrostatic power supply wire is connected to the discharge electrode fixing frame, and its lower part is connected with a discharge electrode distributed with needles. , the dust collection electrode combined with the discharge electrode is connected to the dust collection electrode bracket set at the lower part of the purifier shell, the dust collection electrode and the discharge electrode are arranged at intervals, and a flue gas channel is formed between the adjacent dust collection electrodes and discharge electrodes; Simple structure, low production cost, less land occupation, high purification efficiency, can remove solid, liquid and gaseous pollutants in flue gas at the same time, small resistance, low energy consumption, no condensate accumulation, no need for cleaning, maintenance and operation Low cost, long working life, no fire hazard.

Description

Composite water mist electric field purifier

technical field

The utility model relates to a gas purification treatment device, in particular to a composite water mist electric field purifier capable of generating a water mist electric field.

Background technique

Smoke from cooking and barbecue in the catering industry, smoke from industrial production, and other smoke gases are harmful to the human body and need to be purified. These smoke generally contain solid dust particles, liquid condensate, gaseous pollutants, etc., a single There are many defects in the purification treatment method, such as: the inertial separation method uses the inertia of the dust particles in the airflow to separate, and the removal efficiency of the particles with a small particle size is low. , easy to stick, clogging, resulting in large pressure drop and high energy consumption, and the replacement of filter materials increases operating costs. The liquid washing method has a high purification efficiency, but the purification efficiency of submicron particles is low, and the resistance is large. For adding detergent The discharge of waste liquid not only causes secondary pollution, but also increases operating costs due to its consumables. The electrostatic deposition method has many advantages, such as high purification efficiency, small pressure drop, low noise and energy consumption, and low operating costs, but It is difficult to remove gaseous pollutants and non-polar particulate matter. The condensate with high viscosity will accumulate on the dust collection electrode, forming a film of aggregates, which hinders the discharge of the electric field, which will lead to a decrease in purification efficiency and failure. It is difficult to clean the dust collection electrode and require maintenance. The workload is heavy and the cost is high. If the oil film is flammable, there is still a fire hazard. Although the traditional wet electrostatic has a layer of water film on the surface of the dust collector, which can prevent the accumulation of dust particles or condensate, it can remove gaseous pollutants and Non-polar particulate matter is also more difficult, and the structure is complex, and the manufacturing cost is higher.

Contents of the invention

The purpose of this utility model is to provide a composite water mist electric field purifier for the technical problems of low purification efficiency, large resistance, high energy consumption, high operation and maintenance costs, fire hazards, and difficult removal of gaseous pollutants in the prior art. The purifier has simple structure, low production cost, and less land occupation. The composite purification technology organically combines the advantages of a single purification technology, complements and strengthens each other, and can simultaneously remove solid, liquid and gaseous pollutants in the flue gas. It achieves extremely high purification efficiency with low resistance and low energy consumption. There is no condensation accumulation in the flue after the dust collecting electrode and the outlet of the purifier, eliminating the need for cleaning, low maintenance and operation costs, long working life, no fire hazards, and low manufacturing costs.

The technical solution adopted by the utility model: a composite water mist electric field purifier, including a purifier shell, characterized in that: the top and bottom of the shell are respectively provided with an air inlet and an air outlet, and the inside of the shell is close to The top position is provided with a hanger, and a water mist generator and an insulating material connector are arranged under the hanger, and the lower end of the insulating material connector is connected with a discharge electrode fixing frame, and the discharge electrode fixing frame is connected with a high-voltage electrostatic power supply wire, and its lower part is connected with a discharge electrode, and a dust collecting pole support is arranged inside the housing close to the bottom end, and a dust collecting pole is arranged on the dust collecting pole support, and the dust collecting pole and the discharge electrode are arranged at intervals , a flue gas channel is formed between the adjacent dust-collecting electrodes and the discharge electrodes; needles are distributed on the discharge electrodes; the water mist sprayed by the water mist generator can fill the space formed by the discharge electrodes and the dust-collecting electrodes , and keep the insulating material connecting parts from being wetted by water mist, but not in contact with the discharge electrode and the discharge electrode fixing frame; the flue gas enters from the air inlet on the top of the housing, and is discharged through the air outlet at the bottom of the housing after purification. The water mist sprayed by the water mist generator flows in the same direction as the flue gas.

The discharge electrode is parallel to the dust collecting electrode, and the surface of the discharge electrode opposite to the dust collecting electrode is evenly distributed with needles of the same length, and the needles are perpendicular to the discharge electrode.

The distance between the acupuncture tip and the discharge electrode is equal to the distance between two adjacent acupuncture points.

The distance between the acupuncture tip and the discharge electrode is 20mm.

The needles are cylindrical.

The acupuncture tip is spherical or conical, preferably conical.

The discharge pole is linear or flat or curved, and the dust collection pole is flat or curved.

The cross-sections of the discharge electrode and the dust-collecting pole are both in the shape of "口", and the cross-sections of the distribution of the discharge electrode and the dust-collecting pole are in the shape of "头".

An air inlet cap is provided on the top of the housing, and the air inlet cap communicates with the housing through the air inlet of the housing, and a flow equalizer is arranged inside the air intake cap, and the flow equalizer is located directly above the hanger.

The air outlet of the casing is connected with an exhaust fan, and the gas entering from the air inlet of the casing flows to the air outlet through the suction of the exhaust fan, and at the same time, the water mist flows to the air outlet.

Beneficial effects of the utility model: the utility model perfectly combines the water mist generator and the electric field generator to form a composite water mist electric field. After applying high-voltage static electricity between the dust collecting electrode and the discharge electrode, a strong capacitive electric field is formed, and the water mist is generated. The device inputs water mist into the electric field and fills the electric field to form a composite water mist electric field. In the electric field, the water mist is quickly charged and forms charged mist beads. Huge number of charged mist beads quickly surround the dust particles. Through collision, interception, Diffusion and adhesion will condense the fine particles into coarse particles, which will be absorbed by the dust collector. It is difficult to collect non-wettable and neutral ultrafine particles that are difficult to collect by pure water mist or pure dry electrostatic electric field, and enter the charged water. After being surrounded by mist particles, as long as they touch the spherical electric field of water mist particles, they will be adsorbed, or they will be adsorbed under the action of electric field force due to induced polarization. Therefore, extremely high purification efficiency can be achieved, because water mist has Flushing and washing can remove some gaseous pollutants soluble in water. The ozone generated by corona discharge can sterilize and remove some odor pollutants to purify the flue gas more thoroughly. , Oxidize the pollutants captured by water droplets and filter materials, reduce the secondary pollution of circulating water, and at the same time reduce the air pollution caused by ozone generated by a single electrostatic purifier, because the water mist is directly sprayed to the corona electrode, not only the charge High, and can keep the corona electrode clean, so that the corona is always strong, because the mist particles hit the dust collecting electrode to form a thin and uniform water film, which can prevent the secondary flying of low specific resistance dust and prevent sticking Static pollutants stick to the dust-collecting plate, keep the plate clean for a long time, overcome the defect that the dry static plate is difficult to clean, because the composite water mist electric field has water mist and no combustibles gather, so it has a super fireproof effect, because The composite water mist electric field combines the three effects of water mist, charging, and dust collection into one, not simply superimposing their respective advantages, but organically combining, complementing, strengthening, and adding new advantages, thus overcoming the defects of a single purification technology .

The utility model adopts the insulating material connecting piece, because the air flow and the water mist flow in the same direction, and both flow from top to bottom, the static electricity does not directly contact the water mist generator, and it is easy to keep the insulating material connecting piece from being wet by the water mist, thereby maintaining The insulation between the discharge electrode and the hanger can avoid the creepage phenomenon and cause the purification effect to decline.

The utility model adopts the arrangement of the discharge electrode and the dust collection electrode at intervals, and a flue gas channel is formed between the adjacent discharge electrode and the dust collection electrode, and the discharge electrode can adopt various shapes such as linear, flat or curved, and the dust collection electrode It can adopt various shapes such as plane or curved surface, so that the distribution section of the discharge electrode and dust collection electrode can be diversified, especially the "mouth" shaped section electrode, which increases the rigidity of the electrode, and it is easy to maintain a relatively uniform electrode spacing, which is convenient Manufacturing, and form a large capacitor between the plates to generate a strong electric field.

The utility model adopts the design of distributing acupuncture on the discharge electrode, and the surface of the discharge electrode is covered with cylindrical acupuncture, and the discharge at the tip of the acupuncture replaces the traditional discharge along the entire length of the pole plate or pole line, and the corona initial voltage is low. The corona current is high and can generate a strong electric field. The electron and ion flow generated at the acupuncture point is particularly concentrated, and the ion flow pushes the gas to form an electric wind. The electric wind strengthens the movement of dust particles and mist particles in these areas, further improving Dust removal efficiency, due to the high electric field strength and high dust removal efficiency, the electric field is miniaturized, thus reducing consumables and land occupation.

The utility model is combined with an exhaust fan, and the air outlet is connected with the exhaust fan, and the exhaust fan generates negative pressure suction in the casing of the composite water mist electric field generator, so that the smoke and water mist flow from top to bottom, and the purified gas is sent to Into the flue discharge, to achieve a single air volume and pressure matching, to meet the purification requirements of different flue gas flow.

Description of drawings

Fig. 1 is the use structure schematic diagram of the composite water mist electric field purifier of the present invention;

Fig. 2 is the structural representation of the composite water mist electric field generator of the present invention;

Fig. 3 is a cross-sectional view of a composite water mist electric field generator discharge electrode and a dust collector electrode in the shape of a "mouth" in the utility model;

Fig. 4 is the electrode sectional view of the composite water mist electric field generator linear discharge electrode and planar dust collection electrode combination in the utility model;

Fig. 5 is the electrode sectional view of the composite water mist electric field generator linear discharge electrode and planar dust collecting electrode combination in the utility model;

Fig. 6 is an electrode cross-sectional view of the composite water mist electric field generator planar discharge electrode and planar dust collection electrode combination in the utility model;

Fig. 7 is a cross-sectional view of an electrode combined with a curved discharge electrode and a curved dust collector of the composite water mist electric field generator in the present invention;

Fig. 8 is an electrode cross-sectional view of the combination of the linear discharge electrode and the curved dust collection electrode of the composite water mist electric field generator in the utility model;

In the figure: 1. Water supply pipe; 2. Circulating water pump; 3. Filter; 4. Circulating water pipe; 5. Dust collector bracket; 6. Purifier shell; 7. Composite water mist electric field purifier; 9. Acupuncture; 10. Dust collecting pole; 11. Evening plate; 12. Hanger; 13. Insulating material connector; 14. Air intake cap; 15. Water mist generator; 16. Water mist; 17. 18. High-voltage electrostatic power supply; 19. Gas flow direction; 20. Exhaust fan; 21. Pin wheel demister; 22. Demister shell; 23. Water tank; 24. Sewage pipe; 25. Water separator.

detailed description

As shown in Figures 1, 2, 3, 4, 5, 6, and 7, a composite water mist electric field purifier includes a purifier housing 6, and the top and bottom of the purifier housing 6 are respectively provided with an air inlet and an outlet. The air inlet, air inlet cap 14 is installed on the top of the purifier housing, the air inlet cap covers the air inlet, and communicates with the inner cavity of the housing through the air inlet, the air inlet cap is equipped with an equalizing plate 11, and the equalizing plate makes the water entering The air flow before the fog electric field is uniform, and the hanger 12 is installed near the top of the housing. The hanger 12 is located directly below the flow sharing plate. The insulating material connector 13 is installed on the hanger 12. On the frame 12, the lower end of the insulating material connector 14 is connected to the discharge electrode fixed frame 17, and the vertically downward discharge electrode 8 is installed on the discharge electrode fixed frame; a vertically upward dust collection pole support 5 is installed near the bottom in the housing, A vertically upward dust collecting pole 10 is installed on the dust collecting pole support 5, and the dust collecting pole 10 and the discharge electrode 8 are arranged at intervals, and the dust collecting pole is parallel to the discharge electrode; a water mist generator 15 is installed below the hanger 12, The water mist generator 15 is not in direct contact with the static electricity, and the distance between its spray port and the discharge electrode 8, the discharge electrode holder 17 and the insulating material connector 13 is greater than the distance between the discharge electrode and the dust collection pole, so that the water mist occurs The device 15 sprays water mist downwards, and the sprayed water mist 15 does not wet the surface of the insulating material connector 13, so as to prevent creepage or conduction between the discharge electrode 8 and the hanger 12. The connecting wire of the high-voltage electrostatic power supply 18 has needle punches 9 evenly distributed on the surface opposite to the dust collector on the discharge electrode. The needle punches are prismatic or cylindrical, preferably cylindrical; Spherical or cone-shaped, preferably cone-shaped, welded on the discharge electrode by welding, and perpendicular to the discharge electrode, the length of all acupuncture points is the same, and the length of the acupuncture points and the distance between two adjacent The distance is the same, and the length of acupuncture is preferably 20mm. When high-voltage static electricity is applied, the corona inception voltage of this acupuncture discharge is low, and it can generate electric wind. The electrode discharge can keep clean and have a strong corona when there is water mist. The mist beads on the needles move quickly to the dust collecting pole under the action of the electric field force and the electric wind, the mist beads are quickly charged in the electric field, and are affected by the repulsive force of the same charge during the movement to the dust collecting pole, further splitting It is more finer, that is, further atomized, which is more conducive to capturing dust and scrubbing gas, making gas purification more thorough and obtaining extremely high purification efficiency. The discharge electrode 8 is linear or planar or curved, and the dust collector is very flat or curved. The discharge electrode 8 and the dust collector 10 can have multiple combinations. As shown in Figure 3, the discharge electrode and the dust collector are both Plane shape, the section of discharge electrode and dust collection electrode is made of "mouth" shaped metal plate, the cross section of the combination of discharge electrode and dust collection electrode is "back" shape, and there are evenly distributed cylinders on the surface of the discharge electrode opposite to the dust collection electrode As shown in Figure 4, the discharge is extremely linear, and the dust collection is extremely planar. The discharge electrodes are preferably cylindrical metal rods, and the discharge electrodes are distributed in rows. The electrode is made of a flat metal plate, which is distributed between two adjacent discharge electrodes; as shown in Figure 5, the discharge electrode is linear, and the dust collection electrode is composed of six planes. The cross section of the dust collection electrode is a regular hexagon, and the purifier shell There are multiple dust-collecting poles installed in the body. The cross-section of the purifier shell and the multiple dust-collecting poles inside is like a honeycomb. The discharge electrode is a cylindrical metal rod. There is a discharge electrode in the center of each dust-collecting pole. Cylindrical needles are evenly distributed on the side wall surface of each discharge electrode, and the discharge electrode coincides with the dust collection pole axis; Distributed at intervals from the dust collecting pole, cylindrical needles are evenly distributed on the surface of the discharge electrode opposite to the dust collecting pole; as shown in Figure 7, both the discharge electrode and the dust collecting pole are curved surfaces, and A cylindrical metal plate is selected, and the discharge electrode and the dust collection electrode are mutually fitted and distributed at intervals. Cylindrical needles are uniformly distributed on the surface of the discharge electrode opposite to the dust collection electrode; as shown in Figure 8, the discharge electrode is linear, and the collection electrode The dust pole has a curved surface shape, that is, the dust collection pole is cylindrical, and the cross section of the dust collection pole is circular. There are multiple dust collection poles inside the purifier shell, and the cross section of the purifier shell and the multiple dust collection poles inside is honeycomb. The discharge electrode is made of a cylindrical metal rod. There is a discharge electrode at the center of each dust collecting pole. Cylindrical needles are evenly distributed on the side wall of each discharge electrode. The discharge electrode coincides with the dust collecting pole axis. In the utility model, the discharge electrode and the dust collection electrode can have multiple choices and distributions, so that the distance between the dust collection electrode and the discharge electrode is uniform, the rigidity is large, and the distance between each layer is kept equal. The increase in the electric field strength is conducive to improving the purification efficiency. Miniaturization, lower manufacturing cost, because the water mist forms a water film on the dust collector, the dust collector is not easy to stick to the flue gas condensate, therefore, the better dust collection effect has been maintained, and it has overcome the dry electrostatic dust collection Defects that are extremely difficult to clean.

Further, the air outlet of the purifier housing is connected with an exhaust fan 20, and the negative pressure generated by the exhaust fan makes the wind enter the inner cavity of the purifier housing from the air inlet of the purifier housing, and then is discharged through the air outlet of the purifier housing, so that A top-down wind flow field is formed inside the purifier shell, and at the same time, the water mist flows from top to bottom with the wind flow, preventing the hanger and insulating material connectors from being soaked by water mist, thereby preventing the discharge electrode 8 from contacting the hanger. Creepage or conduction between 12.

In the utility model, the housing can also be used as a dust collection carrier and grounded to play the same role as the dust collection pole.

The use and working process of the embodiment of the utility model: the flue gas enters the air intake cap 14 under the negative pressure generated by the exhaust fan 20, and the air flow passes through the air inlet on the top of the purifier shell through the equalizer plate 11 at the lower part of the air intake cap Evenly enter the purifier shell 6, and flow to the air outlet at the bottom of the purifier shell, as shown in Figure 2, the gas flow direction 19 is, enters from the air intake cap, and then passes through the equalizer plate, the top of the purifier shell in turn The air inlet at the bottom of the purifier housing and the air outlet at the bottom of the purifier housing. When the flue gas passes through the purifier housing, the water mist generator 15 sprays water mist downward, and the electrodes are energized. In the strong capacitive electric field formed between the discharge electrode and the discharge electrode, the mist beads sprayed by the water mist generator are rapidly charged, and the mist beads are further atomized under the action of the same charge repulsion force. A single charged mist bead is a small spherical electric field. A large number of charged mist beads quickly surround the dust particles, and through the effects of collision, interception, diffusion, and adhesion, the fine particles in the flue gas are inductively polarized, and are adsorbed by the dust collector under the action of the electric field force; The water film formed on the surface not only enhances the adsorption capacity, but also makes the flue gas condensate not easy to stick; the water-soluble gaseous pollutants can be removed through the washing effect of mist beads; the acupuncture discharge arranged on the surface of the discharge electrode can Electric wind is generated to speed up the movement of particles and charged mist beads to the dust collector; the ozone generated by corona is beneficial to the removal of odor components and sterilization, and at the same time dissolves in water to form hydrogen peroxide, which is oxidized by mist beads and filters. Therefore, it not only avoids the problem of ozone pollution caused by static electricity, but also reduces the secondary pollution of circulating water; Gases that need to be purified such as exhaust gas are better purified, and can be used in conjunction with the rotating pin wheel demister 21 at the same time, between the air outlet of the purifier housing 6 of the composite water mist electric field purifier 7 and the rotating pin wheel demister A sealed connection is used as the air duct, and a water tank 23 is set in the air duct directly below the purifier housing and the rotating pin wheel demister, and the oil-water separator 25 is connected to the water tank through the sewage pipe 24, and the water tank is connected to the oil-water separator 25. It is also connected with the circulating water pipe 4, the circulating water pipe 4 is connected with the water inlet pipe of the water mist generator, the circulating water pipe 4 is equipped with the circulating water pump 2, and at the same time, the circulating water pipe 4 is also equipped with a water supply pipe 1, a filter 3, and an exhaust fan 20 Installed on the air outlet on the top of the demister housing 22 of the rotating pin wheel demister; the rotating pin wheel demister is arranged between the air outlet of the purifier housing of the utility model and the exhaust fan, without being dust collected The mist and dust that are separated by extreme adsorption first enter the demister of the rotating needle wheel. Under the state of high-speed rotation, the rotating needle wheel intercepts, cuts, collides, absorbs, etc., so that the centrifugal force of the dust liquid in the vortex flow field The water is separated from the gas and flows into the water tank; the circulating water pump makes the water in the water tank recycled, and if necessary, the waste water that is discharged is discharged after being treated by the oil-water separator to meet the standard, and the cleaned gas is discharged into the flue by the exhaust fan. emission, the removal rate of solid, liquid and gaseous pollutants in the flue gas is extremely high, the composite water mist electric field generator and the rotating pin wheel demister can be self-cleaning and free of Cleaning: In this embodiment, the electric field strength of the composite water mist electric field is large, the electrode rigidity is large, the electrode spacing is uniform, the resistance is small, the energy consumption is low, the structure is compact, the manufacturing cost is low, the operation and maintenance cost is low, the land occupation is small, the working life is long, and the purification efficiency High, no fire hazard.

The above-mentioned embodiments are only for explaining the technical solution of the utility model, and are not intended to limit the protection scope of the utility model. All technical solutions that adopt the technical solutions of the utility model that are similar or only perform equivalent transformations belong to the protection scope of the utility model.

Claims (10)

1. a kind of compound water smoke electric field clarifier, including purifier shell, it is characterised in that：The case top and bottom are distinguished Air inlet and air outlet are provided with, the enclosure interior is provided with suspension bracket near apical position, and the suspension bracket lower section is provided with water Fog generator and isolation material connector, the isolation material connector lower end are connected with discharge electrode fixed mount, the discharge electrode High-voltage electrostatic power wire is connected with fixed mount, and its underpart is connected with discharge electrode, the enclosure interior is near bottom position Dust collecting electrode support is additionally provided with, dust collecting electrode, the dust collecting electrode and discharge electrode arranged for interval, phase are provided with the dust collecting electrode support Exhaust gases passes are formed between adjacent dust collecting electrode and discharge electrode；Acupuncture is distributed with the discharge electrode；The water fog generator sprays Water smoke can be full of the space that be formed of discharge electrode and dust collecting electrode, and isolation material connector is not moistened by water smoke, but not Contacted with discharge electrode and discharge electrode fixed mount；The flue gas enters from the air inlet of case top, it is purified after through housing bottom Air outlet discharge, the water smoke that the water fog generator sprays and the equidirectional flowing of flue gas.

2. compound water smoke electric field clarifier according to claim 1, it is characterised in that：The discharge electrode is put down with dust collecting electrode OK, face relative with dust collecting electrode on the discharge electrode is evenly distributed with length identical acupuncture, and acupuncture is perpendicular to discharge electrode.

3. compound water smoke electric field clarifier according to claim 2, it is characterised in that：The acupuncture termination to discharge electrode it Between distance and the distance between two neighboring acupuncture it is equal.

4. compound water smoke electric field clarifier according to claim 3, it is characterised in that：The acupuncture termination to discharge electrode it Between distance be 20mm.

5. compound water smoke electric field clarifier according to claim 1, it is characterised in that：The acupuncture is cylinder.

6. compound water smoke electric field clarifier according to claim 1, it is characterised in that：The acupuncture termination is spherical or cone It is pointed.

7. the compound water smoke electric field clarifier according to claim any one of 1-6, it is characterised in that：The electric discharge extremely line Shape or planar shaped or curved, the dust extremely planar shaped or curved.

8. compound water smoke electric field clarifier according to claim 5, it is characterised in that：The discharge electrode and dust collecting electrode section " mouth " font is all, the discharge electrode is " returning " font with the section of dust collecting electrode distribution.

9. compound water smoke electric field clarifier according to claim 1, it is characterised in that：The housing tip is provided with air inlet Cap, it is described enter gas cap connected with housing by housing air inlet, it is described enter gas cap in be provided with homogenizing plate, the homogenizing plate is located at The surface of suspension bracket.

10. compound water smoke electric field clarifier according to claim 1, it is characterised in that：The air outlet connection of the housing Have air exhauster, by the suction of air exhauster make from housing air inlet enter gas to air outlet flow, while also make water smoke to Air outlet flows.