CN112246089A

CN112246089A - Ozone fog mixing purifier

Info

Publication number: CN112246089A
Application number: CN201910719532.3A
Authority: CN
Inventors: 张胤桢
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2021-01-22

Abstract

A purifying apparatus for mixing ozone gas flow and water mist with a mist mixing nozzle and spraying the ozone gas flow and water mist to polluted gas flow. The mist mixing nozzle is a water mist nozzle arranged in the middle of a nozzle of the ozone airflow, the nozzle is an air port with twice diameter changes from big to small, and two jets of the water mist nozzle and the airflow nozzle are mutually entrained and mixed, mutually diffused and mixed, impacted and captured, and pollutants are oxidatively decomposed. The ozone airflow and the water mist are mixed with pollutants, and are sucked into the fish scale net separating device to be atomized, mixed, collided and contacted again, and oxidized and decomposed. The ozone dissolved in the water can carry out harmless treatment on the circulating water, and can not cause secondary pollution. The intelligent control device can control the equipment to operate according to a program, detect the pollutant and ozone content in the exhaust air, control the ozone generation amount, adjust the mixed ozone concentration and reduce the energy consumption and the ozone allowance.

Description

Ozone fog mixing purifier

Technical Field

The invention relates to a purification device which mixes ozone airflow and water mist by a mist mixing nozzle and sprays the ozone airflow and the water mist to polluted airflow.

Background

At present, most of the technologies for purifying polluted air by using ozone spray ozone gas in a working space to reach a certain concentration, and then the technology is static for a period of time to purify air. The technology for purifying catering oil fume is a photolysis oxidation oil fume purifier which utilizes UV (ultraviolet) tubes to irradiate air to generate ozone to purify the oil fume. Because the ultraviolet light leaks to be harmful to human bodies, the light shielding plates are required to be used for avoiding light, and the light shielding plates mostly adopt multi-layer matte plates for blocking the ultraviolet light leakage, so that the smoke discharge resistance and the manufacturing cost are increased. Ozone is an unstable gas, which decomposes half in 1 minute at 30 ℃ and reaches 60 ℃, and ozone decomposes rapidly and loses its oxidizing effect. The hot air of the cooking stove reaches 100 ℃, the temperature of the flue gas sprayed by the cooking stove is higher and reaches 100-200 ℃, the flue gas is sucked into the smoke exhaust hood, the high-temperature air flow is mixed with ozone, the ozone is immediately reduced into oxygen, and the oxidation effect of the ozone is greatly reduced. Ozone moves synchronously with the oil smoke gas flow in the flue, and the probability of collision and contact of ozone with oil smoke, particles and non-methane total hydrocarbon is increased only by generating vortex, so that oxidation reaction can be generated to purify the oil smoke only by strict requirements on the length of a pipeline and the wind speed. Otherwise, the function of purifying the oil smoke can not be achieved.

Disclosure of Invention

In order to overcome the defects of the prior known technical method for purifying the polluted air by using ozone, the invention aims to provide the purifying device which controls the ozone quantity generated by the ozone generating device, mixes the ozone airflow and the water mist by using a mist mixing nozzle, and sprays the ozone airflow and the water mist to the polluted airflow in a cavity through which the polluted airflow circulates. The fog mixing spray head is characterized in that a water fog spray head is arranged in the middle of a spray nozzle of ozone airflow, the spray nozzle is an air port with two variable diameters from big to small, two jets of the water fog spray head and an air flow spray nozzle are mixed in an entrainment mode, and reversely spray to the polluted airflow to generate vortex mixing, so that the mixing and diffusion uniformity of the ozone airflow, the water fog and the polluted airflow is enhanced, the contact range and the contact probability of ozone, water fog and pollutants are enlarged, and quick oxidation reaction is generated during mixing, impacting, capturing and contacting of ozone and water fog, and the process that ozone is dissolved in water fog drops is accompanied. In the circulation cavity, a fish scale net separating device is further arranged, the fog drops are atomized by vortex mixing again, the probability of mixing, impacting, capturing and contacting ozone, water fog and pollutant particles is increased, full oxidation and decomposition are carried out in the circulation cavity, the oxidation purification process is shortened, and the oxidation reaction efficiency is greatly improved. Ozone is a very strong oxidant and has a very strong oxidative decomposition capacity, and pollutants are decomposed into carbon dioxide, water and trace powder after being oxidized and are decomposed into harmless substances. It also has an effect on the non-methane total hydrocarbons that are the most difficult to purify over other purification techniques. The polluted air flow is subjected to ozone oxidation, water mist impact and centrifugal separation for multiple purification, and the purification rate is inevitably improved greatly. The whole process is controlled in a cavity where polluted air flows, water mist dissolving ozone enters a circulating water tank, and is further subjected to oxidative decomposition with larger oil smoke fog drops and particles intercepted by the water mist in the water tank, circulating water is subjected to harmless treatment and can be directly discharged, ozone is easily decomposed in water, and secondary pollution is avoided. The detection sensor of oil smoke on-line monitoring and ozone detector is installed in the tail end of the connecting cavity, the oil smoke sensor detects oil smoke particles, or the ozone detector detects ozone surplus, the detection sensor can transmit signals to the power control module and the flow regulation control device of the ozone generating device, ozone input amount is controlled and adjusted, and ozone utilization efficiency and purification efficiency are improved.

The technical scheme adopted by the invention is as follows: the ozone and fog mixed purification device consists of a purification device cavity, an ozone generation device, a fog mixed spray head, a fish scale net separation device and a circulating water tank. The cavity of the purifying device can be an air duct type box body and can also be a smoke exhaust hood. The ozone generator may be an ozone generator for generating ozone, or an ozone generator assembled with a UV tube. The ozone generator device is arranged in the box body, a plurality of ozone generators or a plurality of UV pipes are arranged in the box body, one end of the box body is an air inlet which is connected with the air inlet pipe through a centrifugal fan, and the other end of the box body is an air outlet which is connected with a plurality of fog mixing spray heads through an ozone airflow air pipe. The fog mixing nozzle is a water mist nozzle arranged in the middle of a nozzle of ozone airflow, the nozzle of the ozone airflow is an air port with two reducing diameters from big to small, a plurality of fog mixing nozzles are arranged in a flow cavity to spray ozone airflow and water mist to polluted airflow, the two jets of the water mist nozzle and the ozone airflow are mixed in a mutual entrainment mode at the nozzle with the two reducing diameters, the jets are reversely sprayed to the polluted airflow, vortex mixing is generated, the uniformity of the mixed diffusion of the ozone airflow, the water mist and the polluted airflow is enhanced, the contact range and the contact probability of the ozone, the water mist and pollutants are enlarged, ozone, the water mist, pollutant particles are mixed, impact is carried out, rapid oxidation reaction is carried out when the ozone and the pollutants are contacted, and the process that the ozone is dissolved in water. The method is characterized in that: the fog mixing nozzle is a water fog nozzle arranged in a nozzle of the ozone airflow and used for spraying the ozone airflow and water fog to the polluted airflow. In order to fully exert the oxidation and purification effects of ozone and shorten the flow of decomposing pollutants by ozone, a fish scale net separating device is arranged at the joint of the circulating cavity and the air pipe. The fish scale net separating device can be composed of a centrifugal fan impeller, a star-shaped fish scale net folded plate, a silencing and guiding device and an air outlet fish scale net folded plate and is connected with a smoke exhaust air pipe. Or only star-shaped fish scale net folded plates and centrifugal fan impellers are used as required, or one or more layers of air outlet fish scale net folded plates which are tightly connected with the air outlet pipeline and uniformly distributed are arranged at the joint of the air pipe. The centrifugal fan impeller can be a powered centrifugal fan impeller provided with a motor or an unpowered centrifugal fan impeller. The impeller of the unpowered centrifugal fan is driven by negative pressure airflow to rotate. The star-shaped fish scale net folded plate and the fish scale net plate of the air outlet fish scale net folded plate are provided with fish scale plate meshes which are opened at a certain angle along the airflow direction. When the smoke exhaust hood is used as a circulation cavity for purifying oil smoke, the fish scale net separating device is arranged on the upper part of the smoke exhaust hood, and the air outlet of the fish scale net separating device is connected with a smoke exhaust air pipe through a smoke collection box. The fish scale net separating device is provided with a centrifugal fan impeller and a concentric star-shaped fish scale net folded plate, a guide ring air suction opening is arranged below the centrifugal fan impeller, a partition plate is arranged below the guide ring air suction opening and connected with a rear vertical plate of the exhaust hood, a circulation channel with a certain space away from the guide ring air suction opening is reserved, the partition plate receives circulating water which is sprayed and dropped and circulating water of a backflow groove which is arranged on a lower bottom plate of the fish scale net separating device and communicated with an upper backflow pipe and a lower backflow pipe, and the circulating water flows into an oil groove circulating water tank on the lower portion. The two sides of the partition board are provided with oil smoke suction inlets, the lower part of the oil smoke suction inlet is a lower smoke suction inlet which is formed by enclosing an air port baffle, a smoke exhaust hood side plate and a rear vertical plate and absorbs oil smoke, and the lower edge of the air port baffle extends into the upper part of the circulating water tank of the oil receiving groove. The top part of the smoke exhaust hood extending outwards is provided with an air containing space and an upper smoke suction port, when oil smoke suddenly increases, the oil smoke can not be sucked into the lower smoke suction port completely, and is lifted naturally to enter the air containing space and be sucked into the upper smoke suction port, so that the oil smoke is prevented from overflowing. A plurality of fog mixing spray heads which reversely spray ozone airflow and water fog to polluted airflow are arranged at the air draft inlet of the diversion ring and the oil smoke suction inlet in the smoke exhaust hood cavity. The polluted air flow is uniformly mixed with ozone and water mist, is in collision contact with the polluted air flow, generates oxidation reaction, and is sucked into the impeller of the centrifugal fan by the negative pressure of discharged smoke through the air suction port of the guide ring.

The ozone fog mixing and purifying device is characterized in that a fish scale net separating device is arranged at the joint of a circulation cavity and an air pipe, a star-shaped fish scale net folded plate is arranged at the center of the fish scale net separating device, the star-shaped fish scale net folded plate is of a fish scale net plate star-shaped structure formed by connecting fish scale net plates uniformly distributed on the concentric circumference of a centrifugal fan impeller, and the star-shaped fish scale net folded plate is a fish scale plate with fish scale net holes uniformly distributed at a certain angle in the air flow direction. The star-shaped fish scale net folded plate can make the fish scale net plate into a plurality of same oblique dihedral angles or a plurality of same volute cambered surface angles according to airflow streamlines, a flow guide wind tongue fixed with an inner angle top is arranged at the inner angle top of the star-shaped fish scale net folded plate, the upper part of the star-shaped fish scale net folded plate is fixedly connected with the upper fixing plate, the lower part of the star-shaped fish scale net folded plate is fixedly connected with the bottom plate, and a gap for circulating water flow is reserved. The centrifugal fan impeller is arranged on the axis of the star-shaped fish scale net folded plate, a uniform gap is reserved between the centrifugal fan impeller and the flow guide air tongue at the top of the inner corner, and the air inlet of the flow guide ring and the centrifugal fan impeller are coaxial and keep a uniform gap. A plurality of mist mixing nozzles for reversely spraying ozone airflow and water mist to the polluted airflow are arranged at the air suction port of the guide ring and the oil fume suction port, the polluted airflow, the ozone gas and the water mist droplets are sucked into the impeller of the centrifugal fan to form vortex airflow, the droplets in the vortex airflow collide with the blades of the rotary impeller to generate 2 times of atomization, the probability of collision contact of pollutants with the ozone and the water mist is increased, and oxidation reaction is further performed. Ozone gas flow and fog drops are accelerated in a centrifugal fan impeller, flow is guided by a guide air tongue and flow to the inner corners of the star-shaped fish scale net folded plates at high speed, after the water fog collides with the fish scale net plates at high speed, the 3 rd atomization is generated, pollutants such as oil smoke fog drops, smoke dust, non-methane total hydrocarbon and the like in vortex gas flow are continuously oxidized and decomposed into carbon dioxide, water and trace powder through 3 times of fully mixed contact containing ozone water fog, and the carbon dioxide, the water and the trace powder are collided and adhered with the water fog to form particles. The density of particles in the air flow is large, the particles are accelerated by negative pressure, the inertia is large, the turning radius is large, the particles cannot rapidly turn to enter meshes of the scale net plate and collide and adhere to the scale net plate, the attached scale net plate flows down, the air pressure enables the water flow to flow out through a circulation gap between the lower part of the star-shaped scale net folded plate and the bottom plate and flow into a reflux groove on the bottom plate of the scale net separating device, the reflux groove is connected with a reflux pipe, and the reflux groove flows into the lower part of the smoke exhaust. The gas density is small, the turning curvature radius is small, and the gas bypasses the meshes of the fishscale plate to flow out under the action of wind pressure. Due to multiple purification effects of ozone oxidation decomposition, water mist collision capture and inertia separation, the purification rate is greatly improved, and water loss consumption is reduced. The fish scale net plate folded plate increases the total circulation area of meshes, ensures the circulation of air flow, reduces the wind resistance and reduces the energy consumption.

The oil receiving tank circulating water tank is internally provided with a float valve, a filter, an overflow pipe, a manual blow-off pipe and an automatic blow-off pipe, a water pump suction inlet is connected with the filter through a sealing pipeline, and the water pump continuously sucks circulating water filtered by the filter and is connected and pressurized to the atomizing spray head through a spraying water supply pipe. The atomizing nozzle is arranged in the middle of the ozone airflow nozzle and faces to the corresponding position of the flow cross section of the polluted airflow, so that the ozone airflow and the water mist are reversely sprayed to the polluted airflow, and the impact speed is increased. The automatic blow-off pipe is connected with a blow-off electromagnetic valve, and the blow-off electromagnetic valve is controlled to be opened by an intelligent control device according to the set temperature of the temperature sensor and an intelligent control program. When the water temperature in the water tank is higher, the sewage electromagnetic valve is opened, the automatic sewage discharge pipe discharges sewage and sediments, the water level is reduced, the float valve is opened to supplement water, the temperature of the circulating water is reduced, and the ozone decomposition speed is slowed down. The intelligent control device controls the sewage discharge electromagnetic valve to be opened and the water feeding electromagnetic valve to be closed according to the set time, and sewage is discharged. When the machine is started, the intelligent control device controls the water feeding electromagnetic valve to open water feeding. When the water level exceeds the mouth of the overflow pipe, the overflow pipe automatically overflows, the manual sewage discharge pipe is opened, sewage can be discharged, and circulating water is replaced periodically. The free ozone which does not take part in the oxidation reaction is sucked by the negative pressure of the fan and discharged into the air pipe, and can not overflow into the room. Circulating water containing ozone flows into the circulating water tank, and is continuously oxidized and decomposed with larger oil smoke fog drops and particulate matters intercepted by water fog in the water tank, so that the circulating water is subjected to harmless treatment, the content of ozone in water is very low, the ozone is easy to decompose, and secondary pollution is avoided.

The intelligent control device can control the ozone generation amount of the ozone generating device according to the smoke exhaust air pipe oil smoke online monitoring and the detection signal of the ozone detector during operation, adjust the concentration of mixed ozone, reduce energy consumption and reduce the excess ozone. The oil smoke sensor detects oil smoke and particles or the ozone detector detects excessive ozone, and the oil smoke sensor transmits signals to the power control module to adjust the ozone input amount, so that the ozone utilization efficiency and the ozone purification efficiency are improved. The intelligent control device is started and shut down according to a program, when the intelligent control device is started, the intelligent control device controls the water-feeding electromagnetic valve to open water, when the water temperature in the water tank is higher in operation, the electromagnetic valve of the sewage discharge pipe is controlled to open according to the set temperature, the automatic sewage discharge pipe discharges sewage and sediments, the water level is reduced, the float valve is opened to supplement water, the water temperature of circulating water is reduced, and the ozone decomposition speed is slowed down. When the machine is shut down, the intelligent control device controls the electromagnetic valve of the drain pipe to be opened according to set time, the water feeding electromagnetic valve is closed, and after sewage is drained, the water feeding electromagnetic valve is controlled to be opened to feed water.

Compared with the prior art, the invention has the following advantages:

1. the ozone generating device of the ozone fog mixing and purifying device is convenient to adopt parts such as an ozone generator, a UV tube and the like for application, is convenient for flow control such as ozone output, conveying, mixing and the like, and has no worry about ultraviolet light leakage and ozone overflow.

2. The ozone generating device is assembled with a centrifugal fan to effectively increase the speed of the jet air flow and reduce the high temperature generated by the ozone generator.

3. The mist mixing spray head of the ozone mist mixing purification device effectively utilizes the gas-liquid mixing effect of the mutual entrainment and mixing of the water atomization spray and the ozone airflow spray, enlarges the contact area and the uniformity of pollutants in the airflow, fully oxidizes and decomposes in the flow cavity, and greatly improves the purification rate and reduces the energy consumption.

4. Ozone airflow and water mist sprayed by the mist mixing spray head are atomized for multiple times in the fish scale net separating device, are uniformly mixed, are impacted and contacted, the oxidative decomposition probability is greatly increased, and the purification efficiency is greatly improved by multiple purification technologies of oxidative decomposition, atomization impact and inertia separation.

5. Ozone airflow and water mist sprayed by the mist mixing spray head are atomized, mixed, impacted and contacted for many times in the fish scale net separating device, so that the oxidation and decomposition probability is greatly increased, and the oxidation and purification process is shortened. No strict limits on the length and wind speed of the smoke exhaust duct are required.

6. The fish scale net separating device has the functions of intercepting water mist and increasing the purification efficiency, and reduces water loss consumption.

7. The ozone generator has the advantages of mature and stable technology, low cost, greatly reduced manufacturing cost, intelligently controlled oxidation reaction, stable purification rate after long-time operation, no reduction of the purification rate along with time, and stable and non-reduction of the purification rate by the intelligent control device.

8. Ozone is dissolved in water mist, so that the strong oxidation effect is achieved, dirty oil and stains are not formed in the cavity, residual ozone in circulating water harmlessly purifies circulating water and a water tank, chemical agents do not need to be added into the circulating water, the internal cleaning work and cost are avoided, the ozone can be directly discharged, and secondary pollution is eliminated.

9. Ozone oxidation decomposes the pollutant and needs humidity assurance more than 45%, sprays water smoke and has the fire prevention effect that completely cuts off naked light entering cavity, can also cool off oil smoke steam and reduce the steam temperature, reduces ozone pyrolysis speed, increases humidity in the cavity, improves ozone oxidation and decomposes the efficiency of pollutant.

10. The intelligent control device of the ozone fog mixing and purifying device can be automatically turned on and off according to a design program, the input amount of ozone of the ozone generator is controlled, the concentration of the mixed ozone is adjusted, and the energy consumption and the ozone surplus are reduced. Improve the utilization rate and the purification rate of the ozone and reduce the energy consumption.

Drawings

FIG. 1 is a schematic sectional front view of an embodiment of the present invention.

Fig. 2 is a side sectional schematic view of fig. 1.

Fig. 3 is a schematic top cross-sectional view of fig. 1.

Fig. 4 is a partially enlarged schematic view of fig. 2.

Fig. 5 is a partially enlarged schematic view of fig. 2.

In the figure, 1, an ozone generating device, 2, an ozone generating piece, 3, a centrifugal fan, 4, a smoke exhaust hood, 5, an ozone airflow air pipe, 6, an air inlet pipe, 7, a water mist spray head, 8, a nozzle, 9, a lampblack suction inlet, 10, a partition board, 11, a lower smoke exhaust port, 12, an air port baffle, 13, an upper smoke exhaust port, 13, a centrifugal fan, 5, an ozone airflow air pipe, 6, a water inlet pipe, 7, a water mist spray,

20. An oil receiving tank circulating water tank, 21 water feeding electromagnetic valves, 22 float valves, 23 overflow pipes, 24 filters, 25 water pumps, 26 sewage discharge electromagnetic valves, 27 manual sewage discharge pipes, 28 sewage discharge pipes, 29 spraying water feeding pipes,

30. Star-shaped fish scale net folded plate, 31 centrifugal fan impeller, 32 guide ring, 33 guide wind tongue, 34 fixed shaft extension, 35 return pipe, 36 return groove, 37 oil smoke on-line detection sensor, 38 ozone detector sensor, 39 upper fixed plate, 40 smoke collection box, 41 smoke discharge pipe, 42 intelligent control device.

Detailed Description

The invention will be further elucidated by means of examples shown in the drawing. FIG. 1 is a schematic sectional view of the front view of the fume purifying and exhausting hood made of the ozone-mist purifying device. The scheme of the ozone-fog mixed oil-smoke purification smoke exhaust hood shown in figure 1 is as follows: the ozone and fog mixed purification device is arranged in the smoke exhaust hood and consists of a smoke exhaust hood (4), an ozone generating device, a fog mixed spray head, a fish scale net separating device and a circulating water tank. The ozone generator device (1) is arranged in the box body, a plurality of ozone generating pieces (2) are arranged in the box body, one end of each ozone generating piece is an air inlet (6) which is connected with an air inlet pipe through a centrifugal fan (3), the other end of each ozone generating piece is an air outlet, and the ozone airflow air pipe (5) in the smoke exhaust hood is connected with a plurality of fog mixing spray heads. The fog mixing nozzle is characterized in that a water fog nozzle (7) is arranged in the middle of a nozzle (8) of ozone airflow, the nozzle of the ozone airflow is a twice-reducing air port which is changed from big to small, a plurality of fog mixing nozzles are arranged in a cavity of an exhaust hood to spray ozone airflow and water fog to polluted airflow, two streams of water fog nozzles and two streams of ozone airflow are mixed in a mutual entrainment mode at the twice-reducing nozzle, the two streams of water fog nozzles and two streams of ozone airflow are reversely sprayed to the polluted airflow, vortex mixing is generated, the mixing and diffusion uniformity of the ozone airflow, the water fog and the polluted airflow is enhanced, the contact range and the contact probability of the ozone, the water fog and pollutants are enlarged, ozone, the water fog and pollutant particles are mixed, impact and rapid oxidation reaction is generated during capture and contact, and. The method is characterized in that: the fog mixing nozzle is a water fog nozzle arranged in a nozzle of the ozone airflow and used for spraying the ozone airflow and water fog to the polluted airflow.

The fish scale net separating device is arranged on the upper part of the smoke exhaust hood, and the fish scale net separating device is arranged in the smoke collection box (40) and connected with the smoke exhaust air pipe (41). Centrifugal fan impeller (31) fixed mounting is on fixed axle that fish scale net separator upper fixed plate (39) central point put and is furnished with the bearing stretches (34), and centrifugal fan impeller has water conservancy diversion circle (32) inlet scoop, and water conservancy diversion circle inlet scoop has baffle (10), and the baffle is connected with the riser behind the enclosure, leaves the circulation passageway with water conservancy diversion circle inlet scoop, and the baffle both sides are equipped with oil smoke inlet scoop (9), and oil smoke inlet scoop communicates with each other with oil smoke lower smoke inlet scoop (11) that wind gap baffle (12) and enclosure curb plate, back riser enclose. The lower edge of the air inlet baffle extends into the upper part of the circulating water tank of the oil receiving groove. A plurality of fog mixing nozzles which reversely spray ozone airflow and water fog to the polluted airflow are arranged at the air suction inlet of the guide ring and the oil fume suction inlet. The polluted air flow, the ozone air flow and the water mist are uniformly mixed, impacted and contacted to generate oxidation reaction, and the exhausted smoke negative pressure is sucked into the impeller of the centrifugal fan through the air suction port of the guide ring. The circulating water that the baffle received the spraying drippage and is equipped with the circulating water of backward flow groove (36) with fish scale net separator lower plate, with upper and lower back flow (35) UNICOM, the circulating water flows into and connects oil groove circulating water tank (20) of enclosure lower part. An air containing space and an upper smoke suction port (13) are arranged in the top part of the smoke exhaust hood extending outwards, when oil smoke suddenly increases, the oil smoke can not be sucked into the lower smoke suction port completely, and the oil smoke naturally rises to enter the air containing space and is sucked into the smoke exhaust hood by the upper smoke suction port, so that the oil smoke is prevented from escaping.

The fish scale net separating device is arranged on the upper portion of the exhaust hood, a star-shaped fish scale net folded plate (30) is arranged in the center of the fish scale net separating device, the star-shaped fish scale net folded plate is of a fish scale net plate star-shaped structure formed by connecting fish scale net plates uniformly distributed on the concentric circumference of an impeller of a centrifugal fan, and the star-shaped fish scale net folded plate is provided with fish scale plates (44) uniformly distributed with fish scale net holes (43) which are opened at a certain angle along the air. The star-shaped fish scale net folded plate can make the fish scale net plate into a plurality of same oblique dihedral angles or a plurality of same volute cambered surface angles according to airflow streamlines, a flow guide wind tongue (33) fixed with an inner angle top is arranged at the inner angle top of the star-shaped fish scale net folded plate, the upper part of the star-shaped fish scale net folded plate is fixedly connected with an upper fixing plate (39), the lower part of the star-shaped fish scale net folded plate is fixedly connected with a bottom plate, and a gap for circulating water flow is reserved. The centrifugal fan impeller is arranged on the axis of the star-shaped fish scale net folded plate, a uniform gap is reserved between the centrifugal fan impeller and the flow guide air tongue at the top of the inner corner, and the air inlet of the flow guide ring and the centrifugal fan impeller are coaxial and keep a uniform gap. A plurality of mist mixing nozzles for reversely spraying ozone airflow and water mist to the polluted airflow are arranged at the air suction port of the guide ring and the oil fume suction port, the polluted airflow, the ozone gas and the water mist droplets are sucked into the impeller of the centrifugal fan to form vortex airflow, the droplets in the vortex airflow collide with the blades of the rotary impeller to generate 2 times of atomization, the probability of collision contact of pollutants with the ozone and the water mist is increased, and oxidation reaction is further performed. Ozone gas flow and fog drops are accelerated in a centrifugal fan impeller, flow is guided by a guide air tongue and flow to the inner corners of the star-shaped fish scale net folded plates at high speed, after the water fog collides with the fish scale net plates at high speed, the 3 rd atomization is generated, pollutants such as oil smoke fog drops, smoke dust, non-methane total hydrocarbon and the like in vortex gas flow are continuously oxidized and decomposed into carbon dioxide, water and trace powder through 3 times of full mixing contact containing the ozone gas flow and the water fog, and the carbon dioxide, the water and the trace powder are collided, contacted and adhered with the water fog to. The density of particles in the air flow is large, the particles are accelerated by negative pressure, the inertia is large, the turning radius is large, the particles cannot rapidly turn to enter meshes of the scale net plate and collide and adhere to the scale net plate, the attached scale net plate flows down, the air pressure enables the water flow to flow out through a circulation gap between the lower part of the star-shaped scale net folded plate and the bottom plate and flow into a reflux groove on the bottom plate of the scale net separating device, the reflux groove is connected with a reflux pipe, and the lower part of the smoke exhaust hood flows into an oil groove circulating. The gas density is small, the turning curvature radius is small, and the gas bypasses the meshes of the fishscale plate to flow out under the action of wind pressure. Due to multiple purification effects of ozone oxidation decomposition, water mist collision capture and inertia separation, the purification rate is greatly improved, and water loss consumption is reduced. The fish scale net plate folded plate increases the total circulation area of meshes, ensures the circulation of air flow, reduces the wind resistance and reduces the energy consumption.

A float valve (22), a filter (24), an overflow pipe (23), a manual drain pipe (27) and an automatic drain pipe (28) are arranged in the oil receiving tank circulating water tank (20), a suction inlet of a water pump (25) is connected with the filter through a sealing pipeline, the water pump continuously sucks circulating water filtered by the filter, and the circulating water is connected and pressurized to the atomizing spray head through a spraying water feeding pipe (29). The atomizing nozzle is arranged in the middle of the ozone airflow nozzle and faces to the corresponding position of the flow cross section of the polluted airflow, so that the ozone airflow and the water mist are reversely sprayed to the polluted airflow, and the impact speed is increased. The automatic sewage draining pipe is connected with a sewage draining electromagnetic valve (26), and the sewage draining electromagnetic valve is controlled by an intelligent control device (42) according to a temperature sensor and an intelligent control program. When the water temperature in the water tank is higher, the sewage electromagnetic valve is opened, the automatic sewage discharge pipe discharges sewage and sediments, the water level is reduced, the float valve is opened to supplement water, the temperature of the circulating water is reduced, and the ozone decomposition speed is slowed down. The intelligent control device controls the sewage discharge electromagnetic valve to be opened according to the set time, the water feeding electromagnetic valve (21) to be closed, and sewage is discharged. When the water supply device is started, the intelligent control device controls the water supply electromagnetic valve to open water supply, and the float valve rises in water level to close water supply. When the water level exceeds the mouth of the overflow pipe, the overflow pipe automatically overflows, the manual sewage discharge pipe is opened, sewage can be discharged, and circulating water is replaced periodically. The free ozone which does not take part in the oxidation reaction is sucked by the negative pressure of the fan and discharged into the air pipe, and can not overflow into the room. Circulating water containing ozone flows into the circulating water tank of the oil receiving groove, and is further oxidized and decomposed with larger oil smoke fog drops and particles intercepted by water fog in the water tank, so that the circulating water is subjected to harmless treatment, the content of ozone in water is very low, the ozone is easy to decompose, and secondary pollution is avoided.

The intelligent control device can control the ozone production of the ozone generator according to detection signals of the smoke exhaust air pipe oil smoke online monitoring sensor (37) and the ozone detector sensor (38) during operation, adjust the concentration of mixed ozone, reduce energy consumption and reduce ozone surplus. The oil smoke sensor detects oil smoke particles or the ozone detector detects excessive ozone, and the oil smoke sensor transmits signals to the intelligent control device to control the power module to adjust the ozone input amount, so that the ozone utilization efficiency and the purification efficiency are improved. The intelligent control device is started and shut down according to a program, when the intelligent control device is started, the intelligent control device controls the water-feeding electromagnetic valve to open water, when the water temperature in the water tank is higher in operation, the electromagnetic valve of the sewage discharge pipe is controlled to open according to the set temperature, the automatic sewage discharge pipe discharges sewage and sediments, the water level is reduced, the float valve is opened to supplement water, the water temperature of circulating water is reduced, and the ozone decomposition speed is slowed down. When the machine is shut down, the intelligent control device controls the electromagnetic valve of the drain pipe to be opened according to set time, the water feeding electromagnetic valve is closed, and after sewage is drained, the water feeding electromagnetic valve is controlled to be opened to feed water.

Claims

1. The utility model provides an ozone fog mixes purifier which characterized in that: the fog mixing nozzle is a water fog nozzle arranged in a nozzle of the ozone airflow and used for spraying the ozone airflow and water fog to the polluted airflow.

2. The ozone mist purifying device as claimed in claim 1, wherein: the nozzle of the ozone airflow is an air port with diameter changed twice from big to small.

3. The ozone mist purifying device as claimed in claim 1, wherein: the ozone generating device is provided with an ozone generator in the box body, one end of the ozone generating device is an air inlet connected with a centrifugal fan, and the other end of the ozone generating device is connected with the mist mixing spray head.

4. The ozone mist purifying device as claimed in claim 1, wherein: the detection signals of the oil smoke on-line monitoring sensor and the ozone detector sensor are used for controlling the ozone generation amount of the ozone generation device.

5. The ozone mist purifying device as claimed in claim 1, wherein: the ozone mist mixing and purifying device is provided with a fish scale net separating device.