CN210646816U

CN210646816U - Composite purifier

Info

Publication number: CN210646816U
Application number: CN201920843937.3U
Authority: CN
Inventors: 李焱; 李跃瑞
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-05
Filing date: 2019-06-05
Publication date: 2020-06-02
Anticipated expiration: 2029-06-05

Abstract

The utility model relates to a composite purifier, which is provided with a shell with an air inlet and an air outlet, wherein a water mist area is provided with a water mist nozzle and a baffling grid plate; the charged area is provided with a corona electrode and a charged area grounding polar plate, the corona electrode is connected with the corona electrode fixing rod, and the charged area grounding polar plate is connected with the charged area grounding electrode fixing rod; the discharge electrode plate of the dust collection area is connected with the discharge electrode fixing rod, and the grounding electrode plate of the dust collection area is connected with the grounding electrode fixing rod of the dust collection area; the dust collection area power supply device of the electrostatic power supply device is provided with a discharge electrode support, the charged area power supply device is provided with a corona electrode support, the discharge electrode support is connected with a discharge electrode fixing rod, and the corona electrode support is connected with the corona electrode fixing rod. The utility model discloses a water smoke district, the combination of charged district, dust collecting area three districts to and the flue gas flow mode of going into and going out from top to bottom, it is low to reach higher purification efficiency and the little energy consumption of resistance, and it is low to maintain and the working costs, and long service life reduces beneficial effect such as conflagration hidden danger.

Description

Composite purifier

Technical Field

The utility model relates to a flue gas purification processing apparatus especially relates to a can produce compound clarifier of compound purification.

Background

The flue gas generated by cooking in the catering industry and industrial heat treatment contains solid dust particles, condensed liquid oil, gaseous pollutants generated by oil cracking and the like. There are many drawbacks to using a single purification process, such as: the inertial separation method uses the inertia of dust particles in an air flow to separate the particles, and thus has a low efficiency of removing particles having a small particle size. The liquid washing method has high purification efficiency, but has low purification efficiency for submicron-grade particles and large resistance, and not only causes secondary pollution when the waste liquid generated by using the detergent is discharged, but also increases the operation cost due to the fact that the waste liquid generated by using the detergent is consumed.

At present, the dry electrostatic deposition method is a main technical means for oil fume purification, and has the advantages of high purification efficiency, small pressure drop, low noise and energy consumption and low operation cost, but the method is difficult to remove pungent odor, namely gaseous pollutants and nonpolar particulate matters, condensed oil dirt with high viscosity can be gathered on a dust collection electrode to form an oil film, electric field discharge is blocked, the purification efficiency is reduced or failed, the dust collection electrode is difficult to clean, the maintenance workload is large, the cost is high, and the oil film is flammable and has large fire hazard. The wet electric or water mist electric field, such as ZL201621225943.5, is used, smoke runs from top to bottom, although the problems can be solved, the parts before contacting water mist still gather oil stain and need to be cleaned frequently, but the needling in the electric field can hang fibrous dust, the cleaning is difficult, and the working performance of the electric field can be influenced, especially under the structural form that the discharge electrode is fully distributed with the needling, the corona starting voltage is low, but the electric field is not uniformly distributed; although the charging is thorough, the dust collecting effect is poor, the dust collecting is mainly suitable for being carried out in a uniform electric field with high corona starting voltage, the purifying effect is poor, the charging and the dust collecting are in one electric field and are limited by low corona starting voltage, the distance between a discharge electrode and an earth electrode is large, the length size of the electric field is large, the size of equipment is large, and a demisting device is required to be additionally arranged because smoke runs from top to bottom, so that the system is complex and has large resistance.

Disclosure of Invention

The utility model aims at providing a purification efficiency is low among the prior art, the resistance is big, the energy consumption is high, frequently wash the operation maintenance cost high, there is the conflagration hidden danger, technical problem such as gaseous pollutant is difficult to get rid of provides a compound clarifier, through water fog district, the charged district, the three regional combination in dust collecting area, the following flue gas flow mode of going out of going into, combine the advantage in each district organically, the mutual complementation is strengthened, satisfy the solid-state in getting rid of the flue gas simultaneously, liquid and gaseous multiple pollutant composition, reach higher purification efficiency and the resistance is little, the energy consumption is low, it is low to maintain and the working costs, long service life, beneficial effect such as reduction conflagration hidden danger.

The utility model provides a technical scheme as follows:

a composite purifier comprising:

the bottom of the shell is provided with an air inlet, the top of the shell is provided with an air outlet, and a water mist area, a charged area and a dust collection area are sequentially distributed in the shell from bottom to top;

the water mist area is provided with at least one water mist nozzle and a plurality of baffle plates arranged below the water mist nozzle, and the baffle plates are used for collecting water drops below the water mist nozzle and enabling smoke to pass through in a baffling manner;

the charging area is provided with a plurality of corona electrodes and a plurality of charging area grounding polar plates, the plurality of corona electrodes and the plurality of charging area grounding polar plates are arranged in parallel and in a crossed mode at intervals, the plurality of corona electrodes are connected through a corona electrode fixing rod, two ends of the corona electrode fixing rod are connected with the shell through corona electrode supports, each corona electrode support is connected with the shell through a first insulating piece, and the plurality of charging area grounding polar plates are connected with the inner side wall of the shell through a charging area grounding electrode fixing rod;

the dust collection area is provided with a plurality of discharge polar plates and a plurality of dust collection area grounding polar plates, the discharge polar plates and the dust collection area grounding polar plates are arranged in parallel and in a crossed mode at intervals, the discharge polar plates are connected through a discharge electrode fixing rod, two ends of the discharge electrode fixing rod are connected with the shell through discharge electrode supports, each discharge electrode support is connected with the shell through a second insulating piece, and the dust collection area grounding polar plates are connected with the inner side wall of the shell through a dust collection area grounding electrode fixing rod;

still be equipped with electrostatic power supply unit, electrostatic power supply unit includes charged area power supply unit to and dust collection district power supply unit, charged area power supply unit passes through corona electrode support does the charged area provides the power, dust collection district power supply unit passes through discharge electrode support does the dust collection district provides the power.

In the technical scheme, the flue gas is treated in a lower inlet and upper outlet flue gas flowing mode, the flue gas enters the shell from the lower end of the shell under the action of negative pressure, partial solid smoke dust is moistened under the action of water mist washing in a water mist area, the temperature of the flue gas is reduced, gaseous oil molecules are condensed into liquid, the liquid state enters a charge area along with the air flow, high-voltage static electricity is applied to the charge area, a corona is generated in a channel formed between a corona electrode and a ground electrode plate of the charge area to generate an uneven electric field, so that dust particles, liquid condensate, water mist and the like carry charges, the charged water mist is influenced by the same charge repulsive force, the splitting of mist beads is reduced and increased, the flue gas is further diffused, collided and washed to cool the flue gas, the gaseous pollutants are reduced, the gaseous pollutants are further removed by ozone generated by the corona, the charged dust particles, the condensed liquid state and the water mist enter a dust, in a channel formed between the discharge polar plate and the dust collection area ground polar plate, the dust is adsorbed on the dust collection area ground polar plate under the action of an electric field force, as the water mist forms a water film on the dust collection polar plate, dust particles, liquid condensate and fibrous dust cannot be adhered and gathered on the dust collection polar plate, and larger liquid drops are formed on the dust collection polar plate along with the coagulation action, and naturally fall down when the gravity of the liquid drops is greater than the buoyancy of an air flow, so that the phenomenon that pollutants are gathered and cover the polar plate to influence the discharge performance and further influence the dust collection effect is effectively avoided, and the fallen liquid drops are collected and discharged by a deflection grid plate in the water mist area; the flue gas purified by the dust collection area is discharged from an upper gas outlet, and a demisting device is not needed because the flue gas does not contain water mist, and the gas outlet is connected with an air exhaust fan; the water mist area, the charged area and the demisting and dust collecting area are divided into three areas which are uniformly arranged in a shell, the effect of compound purification of smoke is achieved through airflow organization, the problem of frequent cleaning of a dry-type electrostatic electrode plate is solved, and the dry-type electrostatic electrode plate has a fireproof effect because of water mist and no combustible gathering, so that the defects of oil fume purification technical equipment are fundamentally solved; the composite purifier has the advantages of small resistance, low energy consumption, compact structure, low manufacturing cost, low operation and maintenance cost, small occupied area, long service life, high purification efficiency and no fire hazard.

Preferably, the air inlet includes main air inlet and supplementary air inlet, main air inlet is located casing central point department, supplementary air inlet is located and is close to casing inside wall department, just main air inlet with keep apart through a baffle between the supplementary air inlet.

Among this technical scheme, set the air inlet to constitute by main air inlet and auxiliary air inlet, the purpose makes most flue gas get into from main air inlet, and a small part flue gas gets into from auxiliary air inlet, avoids the insulating part of establishing the fixed corona utmost point support in the inside wall both sides of casing separately not by the water smoke splash keep with the casing between insulating properties.

Preferably, the charged region power supply device comprises a charged region high-voltage electrostatic power supply and a first conducting wire;

one end of the first lead penetrates through one first insulating part and is connected with the high-voltage electrostatic power supply in the charged area, and the other end of the first lead is connected with the corona electrode bracket;

the dust collection area power supply device comprises a dust collection area high-voltage electrostatic power supply and a second lead;

one end of the second lead penetrates through one of the second insulating pieces to be connected with the high-voltage electrostatic power supply of the dust collection area, and the other end of the second lead is connected with the discharge electrode support.

In the technical scheme, the power supply device in the charged area or the power supply device in the dust collection area is composed of the high-voltage electrostatic power supply and the wire, so that the high-voltage electrostatic power supply is connected with the corona electrode support and the discharge electrode support after the wire penetrates through one of the insulating pieces, the power supply is provided for the charged area and the dust collection area, meanwhile, the wire is not splashed by water mist under the wrapping of the insulating pieces, insulation is kept between the wire and the shell, and the occurrence of a conducting phenomenon is avoided.

Preferably, a side frame is arranged on the side walls of the charged area and the dust collection area, an accommodating cavity is formed between the side frame and the inner side wall of the shell, and the accommodating cavity is used for arranging the electrostatic power supply device, the first insulating piece and the second insulating piece.

Among this technical scheme, be equipped with a side frame on the lateral wall in charged area and dust collecting area, the purpose is through the holding chamber that forms between side frame and the casing inside wall, realizes the protection behind installing static power supply unit, first insulating part and second insulating part at the holding intracavity, avoids receiving the interior water smoke influence of casing and takes place electric leakage phenomenon.

Preferably, the side frame is provided with a pair of first through holes at positions corresponding to the corona electrode fixing rods, two ends of the corona electrode fixing rods penetrate through the first through holes and then are connected with the corona electrode support, and the distance between the inner surface of each first through hole and the outer surface of each corona electrode fixing rod is 1.5-2 times the distance between the adjacent corona electrode and the grounding electrode plate in the charge area;

the side frame is provided with a pair of second through holes opposite to the discharge electrode fixing rod, two ends of the discharge electrode fixing rod penetrate through the second through holes and then are connected with the discharge electrode support, and the distance between the inner surface of each second through hole and the outer surface of the discharge electrode fixing rod is 1.5-2 times the distance between the adjacent discharge electrode plate and the ground electrode plate of the dust collection area.

Among this technical scheme, set up first through-hole in the relative corona utmost point dead lever department of side frame, the purpose is for making corona utmost point dead lever run through behind the first through-hole with corona utmost point leg joint, reach electrically conductive effect. Meanwhile, a second through hole is formed in the side frame opposite to the discharge electrode fixing rod, and the discharge electrode fixing rod is connected with the discharge electrode support after penetrating through the second through hole in the same way, so that the conductive effect is achieved. Further injecture is done through the distance between the pole surface to the downthehole surface of first through-hole to corona electrode dead lever like this to and do further injecture to the distance between the pole surface of downthehole surface to the discharge electrode dead lever of second through-hole, effectively avoid the distance too little easy discharge, the probability that the flue gas got into the side frame is increased to the distance too greatly, and it is better to guarantee to get into the flue gas in the side frame less, can improve insulating effect less effectively more. The safety of the electrostatic power supply device is ensured, and power supply for the charged area and the dust collection area can be realized.

Preferably, the distance between the corona electrode support connected with the lower end of the first insulating part and the shell connecting part connected with the upper end of the first insulating part is 1.5-2 times of the distance between the corona electrode plate and the grounding electrode plate of the charged area of the corona electrode support, and the distance between the discharge electrode support connected with the lower end of the second insulating part and the shell connecting part connected with the upper end of the second insulating part is 1.5-2 times of the distance between the discharge electrode plate and the grounding electrode plate of the dust collection area of the discharge electrode support. Too small a distance increases the chance of both discharges and too large a distance increases the height size of the device.

Preferably, a first guide plate is further arranged between the water mist area and the charged area, the first guide plate is arranged at the position of the inner side wall of the shell in an enclosing mode and forms a shape with two open ends, the caliber of one side close to the charged area is smaller than that of the other side, and the included angle between the first guide plate and the horizontal plane is 30-75 degrees.

And/or;

and a second guide plate is arranged below the dust collection area above the charged area, two ends of the second guide plate are connected with the inner wall of the shell and are inclined with the horizontal plane, and the included angle between the second guide plate and the horizontal plane is 30-75 degrees.

Among this technical scheme, set up a first guide plate in the water smoke district, and set up first guide plate and be located casing inside wall department, and enclose into both ends open shape, the bore that is close to charged district one side simultaneously is less than another side open-ended bore, the purpose that should set up is that the circulation route for the flue gas provides the guide effect, guarantee that whole flue gas can follow the central point of casing and put the outflow towards charged district, improve the accurate rate of processing of charged district to the flue gas, increase the treatment effeciency, reduce the chance that contains in the water smoke gets into the side frame simultaneously, be favorable to keeping the insulating properties of insulating part.

And meanwhile, a second guide plate is arranged in the dust collection area and is inclined through the connection mode of the second guide plate. The flue gas after the same assurance is charged can both get into the dust collecting area electric field, and the further improvement is to the accurate rate of handling of flue gas under the effect of dust collecting area, reduces the chance that contains water smoke flue gas and get into in the side frame simultaneously, is favorable to keeping the insulating properties of insulating part and finally reaches best treatment effeciency.

Most importantly, under the action of the first guide plate and the second guide plate, almost all smoke can pass through an electric field, and under the condition that an electrostatic power supply device and a corona electrode fixing rod and a discharge electrode fixing rod form the electric field, even if a small amount of smoke containing water mist enters the accommodating cavity from the first through hole and the second through hole which are formed in the side frame, the smoke can be adsorbed by the dust collecting polar plate inside the accommodating cavity, so that the insulating part is prevented from being subjected to moist creepage.

Preferably, at least one self-cleaning nozzle is arranged at the top of the dust collection area.

In the scheme on this machine, through the self-cleaning nozzle that the top of dust collecting zone (be the top of whole casing) set up, remain under whole clarifier off-state and wash the pollutant of adhesion on each polar plate (be corona electrode, charged area ground plate, discharge electrode and dust collecting zone ground plate) that remains, keep the cleanliness of each polar plate, avoid by washing after professional dismantles, reduce the maintenance cost.

Preferably, the baffle grids comprise a plurality of upper plates and a plurality of lower plates, the upper plates are arranged in sequence, the lower plates are arranged in sequence, a first gap is reserved between every two adjacent lower plates, and a second gap is reserved between every two adjacent upper plates;

the upper plate is arranged above the two adjacent lower plates, and a third gap is reserved between the lower plates and the upper plate;

in the use state, the smoke flows through the first gap, the third gap and the second gap in turn.

In the technical scheme, the flow grid plate is improved to be composed of a plurality of upper plates and a plurality of lower plates which are arranged in sequence, a first gap is reserved between every two adjacent lower plates, a second gap is reserved between every two adjacent upper plates, and a third gap is reserved between the lower plates and the upper plates; through the design of upper plate and hypoplastron like this, realize the collection to the water droplet, avoid the water droplet to drop from the clearance that each flue gas got into simultaneously.

Preferably, the upper plate and the lower plate are both in a conformal structure, and the conformal structure opening of the upper plate is disposed opposite to the conformal structure opening of the lower plate.

In the technical scheme, through the matching of the upper plate and the lower plate, the air flow is ensured to smoothly flow into the water mist area, water drops in the water mist area can be collected and discharged through the baffling grid plate, and the design is ingenious and reasonable.

Preferably, the corona electrode is of a rack-shaped structure, and the charged region grounding electrode is of a flat plate shape; the discharge polar plate and the dust collection area grounding polar plate are both flat-shaped and are circular arc angle transition edges without sharp corners.

Among this technical scheme, set up the corona electrode into rack column structure, through sharp-end production corona, finally produce inhomogeneous electric field, the corona onset voltage is low, is favorable to the electric charge of dirt particle and liquid condensate and water smoke, and the ozone that the corona produced can further get rid of gaseous pollutant again, kills two birds with one stone. Set up discharge electrode plate and dust collection polar plate into dull and stereotyped structure, the excessive peripheral no closed angle of arc angle, corona-starting voltage is high can reduce the production of corona, makes the electric field keep even, is favorable to gathering dust, to sum up, the utility model provides a pair of composite purifier have following several characteristics:

1. in the utility model, the water mist area, the charged area and the dust collection area are divided into three areas which are uniformly arranged in a shell, and simultaneously, the mode of air inlet and air outlet is adopted, the effect of compound purification of the smoke is achieved through the air flow organization, and the problem of frequent off-line cleaning of the dry-type electrostatic polar plate is overcome, and the smoke purification technical equipment has the fireproof effect because of the water mist and no combustible gathering, thereby fundamentally solving the defect of the oil smoke purification technical equipment; the utility model discloses compound clarifier resistance is little, the energy consumption is low, compact structure, and manufacturing cost is low, and the operation maintenance cost is low, takes up an area of fewly, long service life, and purification efficiency is high, reduces conflagration hidden danger.

2. The utility model discloses in, set the air inlet to constitute by main air inlet and auxiliary air inlet through a scheme, the purpose makes most flue gas get into from main air inlet, and a small part of flue gas gets into from auxiliary air inlet, avoids dividing the insulating part of establishing between wire and the casing in the connection electrostatic power supply unit of the inside wall both sides of casing and is spattered the wet insulating properties by the water smoke. According to the other scheme, the guide plates are arranged, and the arrangement mode of the guide plates is adopted, so that the charged flue gas can enter an electric field of a dust collection area, the treatment accuracy of the flue gas is further improved under the action of the dust collection area, and the optimal treatment efficiency is finally achieved.

3. The utility model discloses in, what set up no matter is charged district power supply unit or dust collection district power supply unit constitutes by high-voltage static power and wire, utilizes the wire to run through realization high-voltage static power and corona electrode support and discharge electrode leg joint after a certain insulating part like this to for charged district and dust collection district provide the power, keep wire and insulating part not splashed wet by the water smoke simultaneously, keep the insulation between each electrode support and the casing, avoid taking place electrically conductive phenomenon.

4. The utility model discloses in, no matter be through the injecing to the static power supply unit position, still through the side frame that sets up on the lateral wall in charged area and dust collection district, the purpose all is for the protection to static power supply unit, avoids receiving the interior water smoke influence of casing to take place electric leakage phenomenon, increase of service life simultaneously.

5. The utility model discloses in, further self-cleaning nozzle through setting up at the top of dust collecting area (being the top of whole casing) can wash the pollutant of adhesion on discharge electrode plate and the dust collecting area ground plate effectively, keeps the cleanness of polar plate, and the maintenance cost is low.

6. In the utility model, through the improvement of the folded flow grid plate, the folded flow grid plate is composed of a plurality of upper plates arranged in turn and a plurality of lower plates arranged in turn, meanwhile, a first gap is reserved between two adjacent lower plates, a second gap is reserved between two adjacent upper plates, and finally, a third gap is reserved between the lower plates and the upper plates; through the design of upper plate and hypoplastron like this, both guaranteed that the air current passes in the clearance baffling entering water smoke district between the adjacent baffling grid tray, can also collect and get rid of the water droplet in water smoke district through the baffling grid tray, avoid the water droplet to drop from the clearance that each flue gas got into simultaneously, design benefit is reasonable.

7. The utility model discloses in, set up the corona electrode into rack column structure, through most advanced production corona, finally produce inhomogeneous electric field, the corona onset voltage is low, is favorable to the lotus of dirt particle and liquid condensate and water smoke, and the ozone that the corona produced can further get rid of gaseous pollutant again, kills two birds with one stone.

8. The utility model has the advantages that the whole structure is compact, satisfies and gets rid of solid-state, liquid and gaseous multiple pollutant composition in the flue gas simultaneously, reaches higher purification efficiency to the resistance is little, the energy consumption is low, and it is low to maintain and the working costs, and long service life reduces beneficial effect such as conflagration hidden danger.

Drawings

The above features, technical features, advantages and modes of realisation of a composite scrubber will be further described in the following, in a clearly understandable manner, with reference to the accompanying drawings, which illustrate preferred embodiments.

FIG. 1 is a schematic structural view of a composite purifier of the present invention;

FIG. 2 is a schematic view of the structure in the direction A-A in FIG. 1;

FIG. 3 is a schematic view of a second structure of the composite purifier of the present invention;

FIG. 4 is a schematic view of the structure in the direction B-B in FIG. 3;

FIG. 5 is a schematic view of a third structure of the composite purifier of the present invention;

FIG. 6 is a schematic view of the structure of FIG. 5 in the direction C-C;

FIG. 7 is a schematic view of the structure of FIG. 5 in the direction D-D;

FIG. 8 is a schematic diagram of the use of the water mist region, the charged region and the dust collection region of the composite purifier of the present invention;

FIG. 9 is an enlarged view of the electric field in the dust collecting area at E of FIG. 8;

fig. 10 is an enlarged view of an electric field in a charged region of portion F of fig. 8.

The reference numbers illustrate:

a housing 1; an air inlet 11; a primary air inlet 111; an auxiliary air inlet 112; a partition 113; an air outlet 12; a frame body 13;

a water mist area 2; a water mist nozzle 21; a baffle grid 22; a lower plate 221; an upper plate 222; a drain pipe 23; a water collection sump 24; a first baffle 25; a support plate 26;

a charged region 3; a corona electrode 31; corona electrode fixing bars 32; a charged region ground plate 33; a charged region ground electrode fixing lever 34; a first insulator fixing plate 35;

a dust collection area 4; a discharge electrode plate 41; the discharge electrode fixing lever 42; a dust collection area ground plate 43; a dust collection area ground electrode fixing rod 44; a second baffle 45; a self-cleaning nozzle 46; a second insulator fixing plate 47;

an electrostatic power supply device 5; a charged region power supply device 51; corona electrode support cross bar 511; corona electrode support vertical rods 512; a charged-zone high-voltage electrostatic power supply 513; a first insulator 514; a first conductive line 515;

a dust collection area power supply device 52; discharge electrode support rail 521; a discharge electrode support vertical rod 522; a dust collection area high voltage electrostatic power supply 523; a second insulator 524; a second wire 525;

a side frame 6; a first through hole 61; a second through hole 62.

Detailed Description

In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other embodiments can be obtained from these drawings without inventive effort.

For the sake of simplicity, only the parts relevant to the present invention are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one". Secondly, the top, bottom, etc. refer to the directions shown in the figures, and the dotted arrowed lines indicate the flow direction of the flue gas.

The utility model discloses in the first embodiment of compound clarifier, it is shown with reference to fig. 1, 2, a compound clarifier specifically includes a casing 1, and casing 1's bottom is equipped with air inlet 11, and the top is equipped with gas outlet 12, and the mode of giving vent to anger on following admitting air realizes the processing to the flue gas. Meanwhile, the water mist area 2, the charged area 3 and the dust collection area 4 are sequentially distributed in the shell 1 from bottom to top, and the smoke entering from the bottom air inlet 11 sequentially passes through the water mist area 2, the charged area 3 and the dust collection area 4 to be treated. Thereby improving the purification efficiency, having small resistance, low energy consumption, low maintenance and operation cost, long service life, reducing the fire hazard and the like.

In practical use, the water mist area 2 comprises at least one water mist nozzle 21 and a plurality of baffle plates 22 arranged below the water mist nozzle 21, so that part of dust in the flue gas is wetted when meeting the water mist, the flue gas is cooled, part of oil gas molecules are condensed into liquid drops after being cooled by the water mist and fall onto the baffle plates 22, and the liquid drops are collected by the baffle plates 22 and discharged out of the shell 1; of course, in other embodiments, a drain 23 may be further disposed below the baffle grid 22, and finally discharged out of the housing 1 through the drain 23.

The charging area 3 is provided with a plurality of corona electrodes 31 and a plurality of charging area ground plates 33, and the specific plurality of corona electrodes 31 and the specific plurality of charging area ground plates 33 are arranged in parallel and crosswise at intervals, as shown in fig. 1. And a plurality of corona electrodes 31 are all connected through a corona electrode fixing rod 32, that is, a plurality of corona electrodes 31 are fixedly connected with the corona electrode fixing rod 32. Meanwhile, the two ends of the corona electrode fixing rod 32 are connected with the shell 1 through corona electrode brackets, and a first insulating piece 514 is arranged between each corona electrode bracket and the shell for connection. Therefore, the power supply for the charged area 3 in the later period can be satisfied, the first insulating piece 514 is kept from being splashed by water mist, the insulating property between the power supply device and the shell 1 is kept, and the occurrence of a conducting phenomenon is avoided. The plurality of charged area ground plates 33 are connected with the inner side wall of the shell 1 through a charged area ground electrode fixing rod 34, namely the charged area ground plates 33 are connected with the charged area ground electrode fixing rod 34, and after connection, the two ends of the charged area ground electrode fixing rod 34 are connected with the inner side wall of the shell 1.

The dust collection area 4 is provided with a plurality of discharge plates 41 and a plurality of dust collection area ground plates 43, and the plurality of discharge plates 41 and the plurality of dust collection area ground plates 43 are arranged in parallel and crosswise at intervals, as shown in fig. 1. The plurality of discharge electrode plates 41 are connected by a discharge electrode fixing rod 42, that is, the plurality of discharge electrode plates 41 are connected with the discharge electrode fixing rod 42. Meanwhile, the two ends of the discharge electrode fixing rod 42 are connected with the housing 1 through the discharge supports, and each discharge electrode support is connected with the housing 1 through a second insulating member 524. Therefore, the power supply for the dust collection area 4 in the later stage can be met, the second insulating piece 524 is kept from being splashed by water mist, the insulating property between the power supply device and the shell 1 is kept, and the occurrence of a creepage phenomenon is avoided. And a plurality of dust collection district ground plate 43 who sets up all is connected with the inside wall of casing 1 through a dust collection district ground electrode dead lever 44, and a plurality of dust collection district ground plate 43 one end is connected the back with dust collection district ground electrode dead lever 44 promptly, is connected with the inside wall of casing 1 through the both ends of dust collection district ground electrode dead lever 44. This achieves the fixation of the discharge electrode plate 41 and the dust collection area ground electrode plate 43.

In the first embodiment, an electrostatic power device 5 is further provided, and the electrostatic power device 5 includes a charging area power device 51 for providing power to the charging area 3 and a dust collection area power device for providing power to the dust collection area 4. In actual installation, the charging area power supply device 51 and the dust collection area power supply device 52 are arranged on two sides of the inner side wall of the housing 1 respectively, as shown in fig. 1 and 2. When the smoke rises from the center of the casing 1, the electrostatic power supply device 5 is not affected by the mist even if the smoke contains mist. In practical use, the charged area power supply device 51 is connected with the corona electrode support to supply power to the charged area 3, wherein the corona electrode support comprises a corona electrode support cross rod 511 and a corona electrode support vertical rod 512, and after the corona electrode support cross rod 511 is connected with the charged area power supply device 52, the corona electrode support vertical rod 512 is connected with the corona electrode fixing rod 32. Thereby achieving the purpose of supplying power to the discharge electrode 41, and the corona electrode 31. The same power supply device 52 for the dust collecting area supplies power to the dust collecting area 4 through a discharge electrode support, wherein the discharge electrode support comprises a discharge support cross rod 521 and a discharge support vertical rod 522; after the discharge support cross rod 521 is connected with the dust collection area power supply device 52, the discharge support vertical rod 522 is connected with the discharge electrode fixing rod 42, and finally, power is supplied to the dust collection area 4.

Of course, in other embodiments, in order to further avoid the electrostatic power supply device 5 from being affected by the water mist, a protrusion may be disposed on an inner side wall of the housing 1, the housing 1 is disposed from inside to outside, the protrusion forms a frame 13 structure, and an opening of the frame 13 faces a central position of the housing 1, so that the electrostatic power supply device 5 can be protected by the frame 13 structure. In the present application, the position of the convex frame 13 is not further limited, and this function may be implemented.

In the second embodiment, referring to fig. 3 and 4, an improvement is made on the basis of the above embodiment, and the improvement is that: if the electrostatic power supply device 5 and the insulating members (i.e., the first insulating member 514 and the second insulating member 524) are provided on the inner side wall of the housing 1 between the mist region 2 and the charged region 3, i.e., on both sides above the mist nozzle 21, the electrostatic power supply device 5 is located at a short distance from the mist nozzle 21. Accordingly, the air inlet 11 is further configured to be composed of a main air inlet 111 and an auxiliary air inlet 112, wherein the main air inlet 111 is located at the center of the casing 1, the auxiliary air inlet 112 is located near the inner side wall of the casing 1, and the main air inlet 111 and the auxiliary air inlet 112 are isolated by a partition 113. This ensures that most of the flue gas enters from the primary inlet 111 and a small amount of flue gas enters from the secondary inlets 112 on both sides. While the water mist nozzles 21 are arranged only at the center position of the housing 1, i.e. the position of the center of gravity of the main air inlet 111. This scheme can guarantee the water contact in most flue gas and the water smoke nozzle 21 through the isolation of baffle 113, and the flue gas of fractional part (being close to static power supply unit 5 department promptly) does not contact with water to realized the protection to static power supply unit 5 and insulating part setting, avoided weing and influenced efficiency.

The use and working process of the second embodiment: under the action of negative pressure, flue gas enters the shell 1 from a main air inlet 111 at the lower end of the shell 1 and auxiliary air inlets 112 at two sides, most flue gas enters the main air inlet 111, part of solid smoke dust is moistened under the washing action of a water mist nozzle 21 in a main air inlet channel, the temperature of the flue gas is reduced, gaseous oil molecules are condensed into liquid state and enter a charging area 3 along with air flow, a small amount of flue gas without water mist enters from the auxiliary air inlets 112, the water mist is prevented from splashing a static power supply device 5 and an insulating piece and also enters the charging area 3, high-voltage static electricity is applied to the charging area 3, a corona is generated in a channel formed between a corona electrode 31 and a discharge electrode plate 41 to generate an uneven electric field, so that the dust particles, the liquid condensate, the water mist and the like are charged, the charged water mist is influenced by the repulsive force of the same charge, the splitting of the mist beads is reduced and the, meanwhile, the ozone generated by corona is used for further removing gaseous pollutants, charged dust particles, condensed liquid and water mist enter the dust collection area 4 along with the airflow at a certain flue gas flow rate, the charged dust particles, the condensed liquid and the water mist are absorbed on the ground polar plate 43 of the dust collection area under the action of electric field force in a channel formed between the discharge polar plate 41 and the ground polar plate 43 of the dust collection area, the dust particles, the liquid condensate and the fibrous dust are not adhered on the polar plate because the water mist forms a water film on the ground polar plate 43 of the dust collection area, the polar plate keeps clean, larger liquid drops are formed on the polar plate along with the condensation action, and when the gravity of the water mist is larger than the buoyancy of the airflow, the water drops naturally fall down and are collected by the deflection grid plate 22 in the main air inlet channel and; the flue gas purified by the dust collection area 4 is discharged from an upper outlet, and then the gas outlet 12 is connected with an air exhaust fan; the water mist area 2, the charged area 3 and the dust collection area 4 are uniformly arranged in a shell 1, the effect of compound purification of the smoke is achieved by adopting a mode of lower air inlet and upper air outlet through airflow organization, the problem of frequent cleaning of a dry-type electrostatic polar plate is solved, and the smoke purification device has a fireproof effect because of water mist and no combustible gathering, and fundamentally solves the defect of oil smoke purification technical equipment; the composite purifier has the advantages of small resistance, low energy consumption, compact structure, low manufacturing cost, low operation and maintenance cost, small occupied area, long service life, high purification efficiency and no fire hazard.

In the third embodiment, as shown in fig. 3 and 4, an improvement is made on the basis of the above embodiment, and the improvement is that: the electrostatic power supply device 5 and the insulating members, i.e., the first insulating member 514 and the second insulating member 524, are disposed at both sides of the inner sidewall of the housing 1 at the upper portion of the charging region 3, facing the auxiliary inlet 112. Therefore, the influence of over-close distance between the electrostatic power supply device 5 and the water mist nozzle 21 of the water mist area 2 on wetting can be effectively avoided, and the smoke which does not contain water mist and flows through the auxiliary air inlet 112 keeps the insulation dry and keeps the insulation performance. Meanwhile, the positions of the corona electrode fixing rod 32, the charged area grounding electrode fixing rod 34, the discharge electrode fixing rod 42, the dust collection area grounding electrode fixing rod 44, the discharge electrode support and the corona electrode support are adjusted up and down according to the position of the electrostatic power supply device 5, and the specific connection mode and functions are not changed.

The use and working process of this embodiment are the same as those of the second embodiment, only the flue gas enters the housing 1 from the air inlet 11 at the lower end of the housing 1 under the action of negative pressure, part of the solid smoke dust is moistened under the washing action of the water mist nozzle 21, the temperature of the flue gas is reduced, and the gaseous oil molecules are condensed into liquid and enter the charging area 3 along with the air flow.

In the above two embodiments, referring to fig. 1-4 again, in order to further prevent mist from splashing the electrostatic power supply device 5, the charged-region power supply device 51 in the electrostatic power supply device 5 is composed of a charged-region high-voltage electrostatic power supply 513 and a first conducting wire 515. In practical use, the first lead 515 is connected with the high-voltage electrostatic power supply 513 in the charge area only after penetrating through the first insulating part 514 between one corona electrode support and the shell 1, and the other end of the first lead is connected with the corona electrode support, namely the corona electrode support cross rod 511, so that power is supplied to the charge area 3. Meanwhile, the power supply device 52 of the dust collecting area comprises a high voltage electrostatic power supply 523 of the dust collecting area, a second insulating member 524 and a second conducting wire 525. In practical use, the second wire 525 only needs to penetrate through the second insulating member 524, and then one end of the second wire is connected with the high-voltage electrostatic power supply 523 of the dust collection area, and the other end of the second wire is connected with the discharge electrode bracket, namely the cross rod 521 of the discharge electrode bracket, so that power is supplied to the dust collection area 4.

In the fourth embodiment, as shown in fig. 5-10, an improvement is made on the basis of the above embodiment, and the improvement is that: further, a side frame 6 is disposed on the side walls of the charging area 3 and the dust collecting area 4, so that an accommodating cavity is formed between the side frame 6 and the inner side wall of the housing 1. During actual installation, the electrostatic power supply device 5 is installed in the side frame 6, so that the electrostatic power supply device 5 and the insulating part can be protected through the side frame 6, and the influence of water mist is avoided. Specifically, a pair of first through holes 61 is arranged at the position of the side frame 6 opposite to the corona electrode fixing rod 32, and two ends of the corona electrode fixing rod 32 penetrate through the first through holes 61 and then are connected with the corona electrode support vertical rod 512; meanwhile, a pair of second through holes 62 is formed in the side frame 6 opposite to the discharge electrode fixing rod 42, and two ends of the discharge electrode fixing rod 42 penetrate through the second through holes 62 and then are connected with the discharge electrode support vertical rods 522. Therefore, not only the electrostatic power supply device 5 is protected, but also the charged region grounding polar plate 33 and the discharge polar plate 41 can be fixed, and the connection stability is improved.

During the specific use, the bottom of corona electrode support montant 512 is connected with the tip of corona electrode dead lever 32, and the top of corona electrode support montant 512 is connected with the lower extreme of first insulating part 514, and the upper end of first insulating part 514 is connected with the top of side frame 6 through a first insulating part fixed plate 35 to the realization is fixed to charged area power supply unit 51. Meanwhile, the top end of the vertical rod 522 of the discharge electrode support is connected with the lower end of the second insulating member 524, and the upper end of the second insulating member 524 is connected with the top of the side frame 6 through the second insulating member fixing plate 47, so that the power supply device 52 in the dust collecting area is fixed. It should be noted that the first insulating member 514 or the second insulating member 524 are both used to prevent the corona electrode support vertical rod 512 and the first insulating member fixing plate 35, which are connected at two ends of the insulating member, and the discharge electrode support vertical rod 522 and the second insulating member fixing plate 47 from directly contacting each other, so as to avoid the occurrence of the electric conduction phenomenon. Preferably, the distance between the two is limited to be 1.5-2 times of the distance between the adjacent corona electrode 31 and the charge area grounding electrode plate 33, and 1.5-2 times of the distance between the adjacent discharge electrode plate 41 and the dust collection area grounding electrode plate 3, so that the absolute insulation effect is achieved.

It should be noted that the distance between the inner surface of the first through hole 61 and the rod outer surface of the corona electrode fixing rod 32 is further defined in the present application to be 1.5 to 2 times the distance between the adjacent corona electrode 31 and the charged zone ground plate 33. The distance between the inner surface of the second through hole 62 and the outer surface of the discharge electrode fixing rod 42 is 1.5-2 times of the distance between the adjacent discharge electrode plate 41 and the dust collecting area grounding electrode plate 3. Therefore, the phenomenon that the through holes are too large or too small and are easy to discharge when the distance is too small is avoided, the probability that the smoke enters the side frame 6 is increased when the distance is too large, the less the smoke enters the side frame 6, the better the smoke is, and the less the smoke can effectively improve the insulation effect; however, since an electric field is formed between the electrostatic power supply device 5 arranged in the side frame 6 and the side frame 6, even a small amount of mist droplets enter, the mist droplets are adsorbed, and the phenomenon of electric leakage caused by wetting of the mist can also be avoided.

In the fifth embodiment, referring to fig. 5 again, an improvement is made on the basis of the fourth embodiment, and the improvement is that: further set up a first guide plate 25 in water smoke district 2, and first guide plate 25 is located 1 inside wall department of casing, specific first guide plate 25 is flat structure, directly enclose it in 1 inside wall department of casing during the installation, make it enclose into both ends open shape, the bore that is close to 3 one side in charged district is less than the bore of another side opening promptly, the bore that is close to 2 one side in water smoke district is great promptly, and whole first guide plate 25 is located the first half in water smoke district 2, gaseous state oil molecule condensation becomes liquid in the flue gas after can will spraying through water smoke nozzle 21 like this, drop to baffling grid plate 22 on, discharge pipe 23 owing to grid plate 22 connects is discharged at last. And the smoke passing through the water mist area 2 continuously rises to the charging area 3 from the central position of the shell 1 under the guide action of the first guide plate 25 to perform nuclear power reaction.

It should be noted that, in actual installation, in order to facilitate the installation of the first guide plate 25, and at the same time, in order to improve the stability after installation, the first guide plate 25 is connected to the sidewall of the housing 1 through a support plate 26, so that the support plate 26 and the first guide plate 25 form a triangular bracket. The bottom of the side frame 6 is placed above the support plate 26, and the support plate 26 supports the side frame 6, thereby achieving two purposes. Meanwhile, the included angle between the first guide plate 25 and the support plate 26 is 30-75 degrees, preferably 60 degrees, so that the guide effect can be achieved, and no large resistance is generated, the lower end of the first guide plate is connected with the shell 1, the upper end of the first guide plate is connected with the electric field component support plate 26, and the upper section of the first guide plate is smaller than or equal to the inlet section of the charged area 3, so that the smoke is ensured to completely pass through the electric field of the charged area 3.

In the sixth embodiment, referring to fig. 6 and 7 again, an improvement is made on the basis of the fifth embodiment, and the improvement is that: further still set up a second guide plate 45 in the district 3 that charges, and the both ends of second guide plate 45 all are connected with casing 1 inside wall, make it become the slope form. The flue gas after being charged can enter the electric field of the dust collection area 4, the treatment accuracy of the flue gas is further improved under the action of the dust collection area 4, and the optimal treatment efficiency is finally achieved. More preferably, under the effect of the first guide plate 25 and the second guide plate 45, almost all the smoke can pass through the electric field, and under the condition that the electrostatic power supply device 5, the corona electrode fixing rod 32 and the discharge electrode fixing rod 42 form the electric field in the side frame 6, even if a small amount of smoke containing water mist enters the accommodating cavity from the first through hole 61 and the second through hole 62 which are arranged on the side frame 6, the smoke can be adsorbed by the dust collecting area 4, so that the insulating part is prevented from being wetted and electrically shocked.

It should be noted that the horizontal included angle between the second guide plate 45 and the side frame 6 is 30-75 degrees, preferably 60 degrees, so that the guide effect can be achieved, and no large resistance is generated, meanwhile, the second guide plate 45 is actually arranged on two sides of the pole plate between the inner walls of the two side frames, and the inner wall of the side frame does not need to be arranged, and finally, a guide opening can be formed between the second guide plate 45 and the side frame 6, so that the charged flue gas can be effectively ensured to enter the electric field of the dust collection area 4 for dust collection.

In the seventh embodiment, referring to fig. 5-7, a further improvement is made on the basis of the above embodiment, and the improvement is that: at least one self-cleaning nozzle 46 is further arranged at the top of the dust collection area 4. Through the top of dust collecting zone 4 like this, the top of whole casing 1, the self-cleaning nozzle 46 that sets up washs the pollutant of adhesion on remaining on each polar plate (being corona electrode 31, charged zone ground plate 33, discharge electrode 41 and dust collecting zone ground plate 43) under whole clarifier off-state, keeps the cleanliness of each polar plate, avoids wasing after dismantling by the professional to reduce the maintenance cost, need not that the professional washs casing 1 inside again after taking apart whole product. Meanwhile, after being washed by the self-cleaning nozzle 46, the water drops can fall on the baffling grid plate 22 in a form of condensed water drops, and finally the water is discharged by the sewage discharge pipe 23 to finish the cleaning. Certainly, in actual use, the water collecting tank 24 is arranged below the baffle grid 22, and the sewage discharge pipe 23 is further connected to the water collecting tank 24, so that sewage can be effectively collected and then uniformly discharged, and the sewage discharge efficiency is improved. Meanwhile, the baffle plate 22 is arranged obliquely, namely, the baffle plate is inclined to the horizontal plane, as shown in fig. 1, 3 and 5, so that the sewage in the water collecting tank 24 can be further ensured to be completely discharged, and the phenomenon of water accumulation in the water collecting tank 24 is avoided.

Fourth to seventh of the above-mentioned embodiment the utility model discloses a specific use and working process: under the action of negative pressure, the flue gas enters the shell 1 from an air inlet 11 at the lower end of the shell 1, under the mixed washing action of water mist, part of solid smoke dust is moistened, the temperature of the gas is reduced, gaseous oil molecules are condensed into liquid, the liquid gas enters a charging area 3 along with the gas flow, high-voltage static electricity is applied to the charging area 3, corona is generated in a channel formed between a corona electrode 31 and a grounding polar plate 33 of the charging area, an uneven electric field is generated, dust particles, liquid condensate, water mist and the like are charged, charged water mist is influenced by the same charge repulsive force, the splitting of mist beads is reduced and increased, the flue gas is further diffused, collided and washed, the gaseous pollutants are reduced, the ozone generated by the corona further removes the gaseous pollutants, the charged dust particles, the condensed liquid substances and the water mist enter a dust collecting area 4 along with the gas flow at a certain gas flow rate, and enter the channel formed between a discharge polar plate 41 and the grounding polar plate, the water mist is absorbed on the dust collection area grounding polar plate 43 under the action of the electric field force, the water film is formed on the dust collection area grounding polar plate 43 by the water mist, dust particles, liquid condensate and fibrous dust are rarely adhered on the dust collection area grounding polar plate 43, and larger liquid drops are formed on the dust collection area grounding polar plate 43 along with the coagulation action, naturally fall down when the gravity of the liquid drops is larger than the buoyancy of the airflow, are collected by the deflection grid plate 22, flow into the water collection tank 24 and then are discharged by the discharge pipe 23; the gas purified by the dust collection area 4 is discharged from an upper outlet, and a demisting device is not needed because the gas does not contain water mist. Of course, the subsequent air outlet 12 can be connected to an air extractor; when the fan and the electric field stop working, the self-cleaning nozzle 46 arranged at the upper part of the dust collection area 4 is opened to clean the pollutants adhered on each polar plate and keep each polar plate clean.

In the eighth embodiment, referring to fig. 2, 4 and 6, an improvement is made on the basis of the above embodiment, and the improvement is that: the baffle plates 22 comprise a plurality of upper plates 222 and a plurality of lower plates 221, wherein the upper plates 222 and the lower plates 221 are arranged in sequence, a first gap is reserved between every two adjacent lower plates 221, and a second gap is reserved between every two adjacent upper plates 222; meanwhile, an upper plate 222 is arranged above two adjacent lower plates 221, and a third gap is reserved between each lower plate 221 and the corresponding upper plate 222; thus, in use, the flue gas flows through the first gap, the third gap and the second gap in this order and finally flows into the water mist region 2. The arrangement ensures the entering of the smoke, can avoid the water drop from directly falling from the air inlet 11, and is ingenious and reasonable in arrangement. It should be noted that the sizes of the first gap, the second gap, and the third gap ensure that the flue gas can enter the first gap, the second gap, and the third gap, and no further limitation is made.

In the ninth embodiment, referring to fig. 2, 4 and 6 again, an improvement is made on the basis of the eighth embodiment, and the improvement is that: the upper plate 222 and the lower plate 221 are both arranged in a conformal configuration, and the conformal configuration of the upper plate 222 is open to the conformal configuration of the lower plate 221. Further avoid the water droplet to drop out from the clearance like this, design benefit is reasonable. The size of the opening can be set according to actual requirements, and is not further limited in the application.

In this embodiment, referring to fig. 2, 4 and 6 again, an improvement is made on the basis of the above embodiment, and the improvement is that: the corona electrode 31 is of a rack-shaped structure, and the discharge electrode plate 41 and the dust collection area grounding electrode plate 43 are both flat plates. The corona electrode 31, the discharge electrode plate 41, the charge zone grounding electrode plate 33, the dust collection zone grounding electrode plate 43, the discharge electrode support and the corona electrode support are all made of conductive materials.

It should also be noted that, the utility model provides a purifier equipment is when the in-service use, and the earth connection of power is connected on casing 1, sets up the earth connection on casing 1 and is connected with the earth, plays electrically conductive effect. Secondly, except that the insulating part all the other by conductive material, specifically according to the actual production needs select suitable material, no longer give unnecessary details in this application.

It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A composite purifier, comprising:

2. The composite purifier of claim 1, wherein:

the air inlet includes main air inlet and auxiliary air inlet, main air inlet is located casing central point puts the department, auxiliary air inlet is located and is close to casing inside wall department, just main air inlet with keep apart through a baffle between the auxiliary air inlet.

3. The composite purifier of claim 1, wherein:

the charged area power supply device comprises a charged area high-voltage electrostatic power supply and a first lead;

4. The composite purifier of claim 1, wherein:

the side walls of the charged area and the dust collection area are provided with a side frame, a containing cavity is formed between the side frame and the inner side wall of the shell, and the containing cavity is used for arranging the electrostatic power supply device, the first insulating piece and the second insulating piece.

5. The composite purifier of claim 4, wherein:

the side frame is provided with a pair of first through holes opposite to the corona electrode fixing rod, two ends of the corona electrode fixing rod penetrate through the first through holes and then are connected with the corona electrode support, and the distance between the inner surface of each hole of the first through hole and the outer surface of the corona electrode fixing rod is 1.5-2 times of the distance between the adjacent corona electrode and the grounding polar plate in the charge area;

6. The composite purifier of claim 4, wherein:

a first guide plate is further arranged between the water mist area and the charged area, the first guide plate is arranged at the inner side wall of the shell in a surrounding mode and is in a shape of opening at two ends, the caliber of one side close to the charged area is smaller than that of the other side, and the included angle between the first guide plate and the horizontal plane is 30-75 degrees;

and/or;

a second guide plate is further arranged between the charged area and the dust collection area, two ends of the second guide plate are connected with the inner side wall of the shell and are inclined to the horizontal plane, and an included angle between the second guide plate and the horizontal plane is 30-75 degrees.

7. The composite purifier of claim 4, wherein:

the top of the dust collection area is also provided with at least one self-cleaning nozzle.

8. The composite purifier according to any one of claims 1 to 7, wherein:

the baffle grid plates comprise a plurality of upper plates and a plurality of lower plates, the upper plates are arranged in sequence, a first gap is reserved between every two adjacent lower plates, and a second gap is reserved between every two adjacent upper plates;

9. The composite purifier of claim 8, wherein:

the upper plate and the lower plate are both in a conformal structure, and the conformal structure opening of the upper plate is opposite to the conformal structure opening of the lower plate.

10. The composite purifier according to any one of claims 1 to 7, wherein:

the corona electrode is of a rack-shaped structure, and the charged area grounding electrode, the discharge electrode plate and the dust collection area grounding electrode plate are both flat-shaped.