CN109261424B

CN109261424B - Paint spray booth with air purification system

Info

Publication number: CN109261424B
Application number: CN201811308924.2A
Authority: CN
Inventors: 王亚娟; 韩朝阳; 李亮; 刘阳; 马勇
Original assignee: Shaanxi Dunshi Civil Air Defense Equipment Engineering Co ltd
Current assignee: Shaanxi Dunshi Civil Air Defense Equipment Engineering Co ltd
Priority date: 2018-11-05
Filing date: 2018-11-05
Publication date: 2020-10-16
Anticipated expiration: 2038-11-05
Also published as: CN109261424A

Abstract

The invention discloses a paint spray booth with an air purification system, which belongs to the technical field of paint spray booths and aims to solve the problems that the air in the paint spray booth is not thoroughly purified and secondary pollution is easily caused by simply adopting water curtain pipe water spraying; the side wall of the paint spray booth body is provided with an air passing channel, and the air suction unit is arranged at the air passing channel; the water circulation purification unit comprises a water collecting tank, a water spraying tank with a water spraying pipe communicated at the bottom and a water guide plate with the bottom end suspended over the water collecting tank; a recycling water pump is communicated between the water collecting tank and the water spraying tank through a pipeline. The invention has the advantages of thorough purification of polluted aerosol, contribution to keeping the working environment in a paint spray booth sanitary and small secondary pollution.

Description

Paint spray booth with air purification system

Technical Field

The invention relates to the technical field of paint spray booths, in particular to a paint spray booth with an air purification system.

Background

As an important part of the manufacture of civil air defence apparatus during painting, the painting operation is usually carried out in a dedicated painting booth, since the aerosol generated during the painting process contains various organic components and has an irritating odour.

For example, the current application publication No. CN105478288A discloses a paint spray booth, which comprises a paint spray booth body, a water pool, a grating plate, a spray plate frame, a spray gun, a water curtain pipe, a paint bin, a paint conveying pipe, a water tank, a water conveying pipe and a water filtering pipe; the water pool is fixedly arranged at the bottom of the spray booth body, and the upper end of the water pool is covered with the grating plate; the spraying plate frame is fixed on the grating plate and comprises a base, a rotating shaft, a rotating handle and a plurality of fixing blocks; the coating bin is fixed at the top of the spray booth body and is connected with the spray gun through a coating conveying pipe; the water curtain pipe is horizontally fixed on the upper part of the inner wall of the spray room body, the lower end of the water curtain pipe is provided with a small water leakage hole at one end, and the water curtain pipe is communicated with the water tank through a water conveying pipe; the water tank is communicated with the water tank through a water filter pipe.

However, the water curtain pipe level of above-mentioned spray booth is fixed on the upper portion of the internal wall of spray booth, when adopting the water curtain pipe water spray to subside the aerial fog in the spray booth, can have following problem:

1. water is directly sprayed in the paint spray booth, so that the environment in the paint spray booth is humid, the paint spraying operation is influenced, the residual water stain is troublesome to clean, and secondary pollution is easily caused;

2. the water curtain sprayed by the water curtain pipe can only settle the aerial fog in the air around the water curtain pipe and can not effectively purify the air in the paint spray booth;

3. the pure water curtain pipe water spraying for aerosol sedimentation can only remove part of liquid or fixed pollution particles and a small amount of pollutants dissolved in water in the air, but can not effectively reduce VOC, peculiar smell substances, colored substances and the like in the polluted air in a paint spray booth.

Therefore, there is a need for further improvement of the above-mentioned paint spray booth, so that the air can be sufficiently purified and the environmental pollution caused by the emission of air containing polluted mist can be reduced when the painting operation is performed in the paint spray booth.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a paint spray booth with an air purification system, which has the advantages of thorough purification of polluted aerosol, contribution to keeping the working environment in the paint spray booth sanitary and small secondary pollution.

In order to achieve the purpose, the invention provides the following technical scheme:

a spray booth with an air purification system comprises a spray booth body, an air pressing unit, a water circulation purification unit, an air suction unit, an air mist adsorption purification unit and a light oxygen purification unit; the air pressing unit is arranged on the top wall of the paint spray booth body and used for pressing air into the paint spray booth body; the side wall of the paint spray booth body is provided with an air passing channel, and the water circulation purification unit comprises a water collecting tank arranged at the air passing channel, a water spraying tank arranged right above the water collecting tank and a water guide plate fixedly arranged between the water collecting tank and the water spraying tank; a reuse water pump is communicated between the water collecting tank and the water spraying tank through a pipeline; a water spraying pipe communicated with the water spraying tank is arranged at the bottom of the water spraying tank, and a plurality of water spraying holes are formed in the water spraying pipe; the bottom end of the water guide plate is suspended over the water collecting tank; the air suction unit is arranged at the air passage and positioned on the outer side of the side wall of the paint spray booth body, and is used for guiding air in the paint spray booth into the aerosol adsorption and purification unit; the aerial fog absorption purification unit is communicated with the air suction unit and is used for carrying out absorption impurity removal on the air led out by the air suction unit; the light oxygen purification unit is communicated with the gas outlet end of the gas spray adsorption purification unit to perform catalytic oxidation purification on the gas led out by the gas spray adsorption purification unit.

By adopting the technical scheme, the method at least has the following beneficial effects: 1. the water stored in the water collecting tank is guided into the water spraying tank through the reuse water pump and the pipeline, then is sprayed out from the water spraying holes on the water spraying pipe to the water guide plate and is gathered into the water collecting tank along the water guide plate, and in the process, the water is uniformly spread on the water guide plate, so that the contact area of the water and the air in the paint spraying room is increased, and the sedimentation and purification of pollutants such as suspended liquid drops, particles and the like in the air can be accelerated; meanwhile, the bottom end of the water guide plate is suspended over the water collecting tank, and water forms a water curtain when flowing down from the bottom end of the guide plate, so that polluted aerosol in the air can be effectively settled and purified. 2. The water in the water circulation purification unit is recycled, so that the water cannot be accumulated in a paint spray booth, the spraying operation is not influenced, and the secondary pollution control is facilitated. 3. The air pressing unit is matched with the air suction unit, so that air in the paint spray booth flows directionally, and most of air can flow to the water circulation purification unit to be purified. 4. The air that the water circulation purification unit purification treatment was carried out to the aerial fog absorption purification unit can further purify, pollutants such as fine liquid drop, remaining solid particle in the ability effective removal air. 5. The light oxygen purification unit can further purify the air treated by the aerosol absorption purification unit, and VOC, organic or stink polluted waste gas and the like in the air are removed, so that the finally discharged air is clean and meets the requirement of environmental protection.

Further, the water circulation purification unit also comprises a flocculant box, and a liquid adding pump is connected between the flocculant box and the water spraying box through a pipeline.

Through adopting above-mentioned technical scheme, utilize the liquid feeding pump can lead to hydrologic cycle purification unit with the flocculating agent of flocculating agent incasement storage, through the flocculation and precipitation effect of flocculating agent for impurity in the water body generates flocculent precipitate and separates out, can adopt modes such as filter screen filtration to filter the flocculent precipitate get rid of can. The content of solid impurities in water is reduced, and the recycling time of water used by the water circulation purification unit is prolonged.

Further, the water guide plate is an arc-shaped plate protruding towards the inner side of the paint spray booth body.

Through adopting above-mentioned technical scheme, the arc has increased the area of contact of rivers and air on the water guide plate for rivers adsorb, dissolve the pollutant of air more easily. Meanwhile, water flows along the guide plate, the plane of the water guide plate can be uniformly paved in the flowing process, and finally, a uniform water curtain is formed at the bottom end of the water guide plate, so that the settling and purifying efficiency of the polluted air in the paint spray booth is improved.

Furthermore, at least one rib is arranged on the water guide plate along the horizontal direction.

Through adopting above-mentioned technical scheme, setting up of bead makes water trickling to bead department, accumulates earlier, accumulates to overflowing behind the bead and form even cascade after submerging for the area of contact of cascade and air is big, and pollutant contact is abundant in the air, and purification efficiency is high and purify thoroughly. Meanwhile, after the oily pollutants are mixed into the water in the water circulation system or the oily pollutants are adhered to the water guide plate, the wettability of the water on the water guide plate is poor, the water flow is easily forked into a plurality of water flows, so that the water curtain formed at the bottom end of the water guide plate is uneven, the sedimentation and purification effects are poor, and the problem can be effectively solved after the convex ribs are arranged. In addition, the ribs enable the water flow to flow on the water guide plate in the flowing process of flowing, accumulating, not passing through the ribs and flowing, the flocculating agent can be fully dispersed in the process, and the flocculating and impurity removing effects are excellent.

Furthermore, the compressed air unit comprises an air entraining pipe communicated with the top wall of the paint spray booth body and a compressed air fan arranged in the air entraining pipe.

Through adopting above-mentioned technical scheme, utilize bleed pipe and pressure fan can evenly to leading-in clean air in the spray booth for form directional air current in the spray booth. On one hand, the concentration of the pollutants can be diluted by supplementing fresh air, and the concentration of the pollutants in the air in the paint spray booth is controlled to be in a lower range; on the other hand, the air of directional flow does benefit to and orders about the pollutant and passes through the air passage along with the air current to be purified and processed by hydrologic cycle purification unit, aerial fog absorption purification unit and light oxygen purification unit in proper order, to the purification high efficiency of air, thorough.

Furthermore, the air suction unit comprises a gas collecting hood covering the gas passing channel and an air suction pipe communicated with the gas collecting hood, and an air suction fan is arranged in the air suction pipe.

Through adopting above-mentioned technical scheme, the suction fan during operation produces the negative pressure in the gas collecting channel for air can flow to the spray booth body outside through air passage in the spray booth, makes the contaminated air in the spray booth can be by abundant purification.

Further, the aerosol absorption purification unit comprises a box body, and a partition plate is arranged in the box body; the baffle plate divides the box body into a first adsorption area and a second adsorption area; at least one organic cotton filter plate is arranged in the first adsorption zone along the vertical direction, and at least one activated carbon adsorption plate is arranged in the second adsorption zone along the horizontal direction; the side wall of the box body, which is far away from the second adsorption area, is communicated with an air inlet pipe, and the side wall of the box body, which is far away from the first adsorption area, is provided with an air outlet pipe; the baffle is provided with a through groove communicated with the first adsorption area and the second adsorption area, and the through groove, the air outlet pipe and the communication part of the box body are respectively positioned at the upper side and the lower side of the active carbon adsorption plate.

By adopting the technical scheme, the organic cotton filter plate consists of the frame-shaped plate and the organic cotton adsorption layer, and the activated carbon particles are arranged in the activated carbon adsorption plate. Air guided out from the air passage enters the aerial fog adsorption purification unit and then is purified by the organic cotton filter plate and the active carbon adsorption plate in sequence. Steam, suspended liquid drop and suspended particles in the air are adsorbed and intercepted by the organic cotton filter plate, colored substances, fine liquid drops and the like in the air are adsorbed and intercepted by the activated carbon adsorption plate in the second adsorption area, and the air purified at last is guided out through the air outlet pipe, so that the purification effect on air pollution aerosol is improved.

Further, the organic cotton filter plate is provided with two parallel plates, and the activated carbon adsorption plate is provided with two parallel plates.

By adopting the technical scheme, the two organic cotton filter plates can select filter plates with different filling densities, so that the thoroughness of adsorbing and intercepting liquid drops and the like in the air is ensured. The two activated carbon adsorption plates are arranged, and the airflow can be divided into two paths to respectively penetrate through the activated carbon adsorption plates, so that the adsorption capacity of the activated carbon adsorption plates is fully exerted, and the efficiency of air purification is improved.

Further, the organic cotton filter plate and the active carbon adsorption plate can be detachably arranged in the box body.

Through adopting above-mentioned technical scheme, have the effect that conveniently change the organic cotton filter plate or the active carbon adsorption board of live time overlength, absorption filter effect variation.

Furthermore, a filter box positioned in the water collecting tank is arranged on the side wall of the water collecting tank, and the top wall of the filter box is flush with the opening of the water collecting tank; the bottom plate of the filter box is a filter plate which is detachably arranged; the recycling water pump is communicated with the filter box through a pipeline.

Through adopting above-mentioned technical scheme, when the water in the header tank was led away by the retrieval and utilization water pump through the pipeline, rivers were by the filter of supreme filter tank bottom of flowing through down to make the flocculent sediment of holding back in filter department subside because of the dead weight easily, slowed down the speed that flocculent sediment long-pending stays the jam in filter department, thereby reached the effect that reduces the filter and change the frequency.

In conclusion, the invention has the following beneficial effects:

1. the water stored in the water collecting tank is guided into the water spraying tank through the reuse water pump and the pipeline, then is sprayed out from the water spraying holes on the water spraying pipe to the water guide plate and is gathered into the water collecting tank along the water guide plate, and in the process, the water is uniformly spread on the water guide plate, so that the contact area of the water and the air in the paint spraying room is increased, and the sedimentation and purification of pollutants such as suspended liquid drops, particles and the like in the air can be accelerated; meanwhile, the bottom end of the water guide plate is suspended right above the water collecting tank, and a water curtain is formed when water flows down from the bottom end of the guide plate, so that polluted aerosol in the air can be effectively settled and purified;

2. the water in the water circulation purification unit is recycled, so that the water cannot be accumulated in a paint spray booth, the spraying operation is not influenced, and the control of secondary pollution is facilitated;

3. the air pressing unit is matched with the air suction unit, so that air in the paint spray booth flows directionally, and most of air can flow to the water circulation purification unit to be purified;

4. the air mist adsorption purification unit can further purify the air purified by the water circulation purification unit, and can effectively remove pollutants such as fine liquid drops, residual solid particles and the like in the air;

5. the light oxygen purification unit can further purify the air treated by the aerosol absorption purification unit, remove VOC, organic or stink pollution waste gas and the like in the air, so that the finally discharged air is clean and meets the requirement of environmental protection;

6. the arc-shaped water guide plate is adopted, so that the contact area of water flow and air is increased, the water flow can flow on the water guide plate to form a uniform water curtain, and the sedimentation and purification efficiency of polluted aerosol in the air is improved; set up the bead along the upper horizontal direction on the water guide plate, further guaranteed the purifying effect that subsides to contaminated air, when making the aquatic sneak into oily material or being stained with oily material on the water guide plate moreover, rivers are difficult for branching on the water guide plate, and the cascade of formation is even, has guaranteed effectively to subside the purification to the air.

Drawings

FIG. 1 is a schematic view showing a paint spray booth with an air purification system according to an embodiment;

FIG. 2 is a sectional view of the paint spray booth body in the embodiment;

FIG. 3 is a schematic structural diagram of a water circulation purification system in an embodiment;

FIG. 4 is a schematic structural view of a paint spray booth body and a flocculant tank in an embodiment;

FIG. 5 is a schematic structural view of a water pouring tank, a water collecting tank and a reuse water pump in the embodiment;

FIG. 6 is an enlarged view of portion B of FIG. 5;

FIG. 7 is an enlarged view of portion A of FIG. 1;

FIG. 8 is a schematic structural diagram of an aerosol absorption purification unit in an embodiment;

fig. 9 is an enlarged view of a portion C in fig. 8.

In the figure: 1. a paint spray booth body; 11. a gas passage; 111. a cross bar; 2. a bleed pipe; 21. a compressed air fan; 3. a gas-collecting hood; 31. an air suction pipe; 32. an air suction fan; 4. a water spraying tank; 41. a water spraying pipe; 411. water spraying holes; 5. a water guide plate; 51. a rib; 52. fixing the rod; 6. a water collection tank; 61. a filter box; 611. a card slot; 612. a filter plate; 613. clamping and embedding edges; 614. clamping a plate; 615. a recycling water pump; 7. a flocculant box; 71. a liquid adding pump; 8. a box body; 81. a box door; 82. a U-shaped mounting plate; 83. an organic cotton filter plate; 84. an activated carbon adsorption plate; 85. a partition plate; 851. a through groove 86 and an air inlet pipe; 87. an air outlet pipe; 9. photo-oxygen catalysis exhaust gas purifier.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

a spray booth with an air purification system, referring to fig. 1, comprises a spray booth body 1, a compressed air unit, a water circulation purification unit, an air suction unit, an aerosol adsorption purification unit and a light oxygen purification unit.

Referring to fig. 2, the air compressing unit is disposed on the top wall of the paint spray booth body 1. The compressed air unit comprises an air guide pipe 2 communicated with the top wall of the paint spray booth body 1 and a compressed air fan 21 arranged in the air guide pipe 2. The pressure fan 21 during operation can be through leading-in spray booth body 1 with outside clean air in bleed pipe 2 for the air orientation in the spray booth body 1 flows, dilutes the contaminated air in order to spray booth body 1 through replenishing fresh air simultaneously, reduces pollutant concentration.

Referring to fig. 2 and 3, the side wall of the paint spray booth body 1 is provided with an air passage 11 for contaminated air to pass through. The water circulation purification unit comprises a water spraying tank 4, a water collecting tank 6 and a water guide plate 5 which are arranged at the position of the air passing channel 11, and the water spraying tank 4 is arranged right above the water collecting tank 6. The water guide plate 5 is arranged between the water spraying tank 4 and the water collecting tank 6, the top end of the water guide plate is fixed on the water spraying tank 4, and the bottom end of the water guide plate is suspended over the water collecting tank 6. The water circulation purification unit further comprises a reuse water pump 615, wherein a water inlet end of the reuse water pump 615 is communicated with the water collecting tank 6 through a pipeline, and a water outlet end of the reuse water pump 615 is communicated with the water spraying tank 4 through a pipeline. The bottom end of the water spraying tank 4 is provided with a water spraying pipe 41 along the length direction of the water spraying tank 4, the water spraying pipe 41 is communicated with the water spraying tank 4, and the water spraying pipe 41 is provided with a water spraying hole 411 for water seepage.

Referring to fig. 2 and 3, when air purification is performed, the water tank 6 is filled with water, the water is continuously introduced into the water spraying tank 4 by the reuse water pump 615, and is sprayed onto the water guide plate 5 through the water spraying holes 411 on the water spraying pipe 41, and the water flows back to the water tank 6 along the water guide plate 5, and the process is repeated. In the circulating process of water, the water is spread on the water guide plate 5 to flow, so that the contact area of air is increased, and pollutants in the air are more easily settled or dissolved and removed; meanwhile, when water flows into the water collecting tank 6 from the bottom end of the water guide plate 5, a water curtain is formed, and when polluted air passes through the space between the water guide plate 5 and the water collecting tank 6, part of pollutants are settled or dissolved by the water curtain, so that the polluted air is primarily purified.

Referring to fig. 2 and 3, in order to fully exert the purifying function of the water circulation purifying unit, the water guide plate 5 is provided as an arc-shaped plate, and the water guide plate 5 is convexly provided toward the inner side of the paint spray booth body 1. The arc-shaped water guide plate 5 increases the flowing time of water flow on the water guide plate 5, and simultaneously, the water flow is more easily and uniformly spread on the water guide plate 5, so that a plurality of strands of thin flows are not formed by branching. The water guide plate 5 is provided with a plurality of ribs 51 along the horizontal direction, and the number of the ribs 51 is five in the embodiment. When the water flows to the convex rib 51, the water is accumulated under the blocking of the convex rib 51 and then continuously flows without passing through the convex rib 51, so that the water flow can be distributed over the water guide plate 5, a water curtain formed at the bottom end of the water guide plate 5 is uniform, and the sedimentation and purification effects can be fully exerted. Meanwhile, a small amount of oily substances are mixed in the water body or a small amount of oily substances are adhered to the water guide plate 5, so that the problem that water flow is poor in wettability on the water guide plate 5 and is not easy to spread evenly and bifurcate to form a plurality of water flows can be solved.

Referring to fig. 2 and 4, two cross bars 111 are disposed at the air passing passage 11, and a fixing rod 52 perpendicular to the cross bars 111 is disposed on the water guide plate 5. The fixing rod 52 has one end fixed to the cross bar 111 and the other end fixed to the water guide panel 5. The cross bar 111 and the fixing bar 52 can form a stable support for the water deflector 5, so that the water deflector 5 is firmly installed.

Referring to fig. 4, the water circulation purification unit further includes a flocculant tank 7 and a charge pump 71. The liquid inlet end of the liquid adding pump 71 is communicated with the flocculating agent tank 7, and the liquid outlet end is communicated with the water spraying tank 4. The flocculating agent can be introduced into the water spraying tank 4 through the flocculating agent and the liquid adding pump 71. When water containing the flocculating agent flows on the water guide plate 5, the water can be fully and uniformly mixed. After the water flows into the water collecting tank 6, the pollutants in the water body are generated into flocculent precipitates and separated out. The flocculent precipitate in the water collecting tank 6 is filtered by adopting a filter screen at regular time, and then the pollutants can be treated.

Referring to fig. 5 and 6, in order to prevent the reuse water pump 615 from being blocked due to a large amount of flocculation and sedimentation entering the pipeline, a filter tank 61 is arranged in the water collection tank 6. The filter tank 61 is rectangular box-shaped, and is attached to the side wall of the water collecting tank 6, and the liquid inlet end of the reuse water pump 615 is communicated with the filter tank 61. The water entering the reuse water pump 615 is filtered by the filter tank 61, and impurities entering the reuse water pump 615 are greatly reduced.

Referring to fig. 5 and 6, the bottom plate of the filter box 61 is a detachably disposed filter plate 612. Strip-shaped clamping grooves 611 are formed in the two inner side walls of the filter box 61, and clamping ribs 613 matched with the clamping grooves 611 in a clamping and embedding mode are arranged on the two sides of the filter plate 612. When the filter plate 612 is mounted, the engaging ribs 613 are aligned with the engaging grooves 611, and the filter plate 612 can be mounted in place by sliding in the horizontal direction. The clamping plate 614 is rotatably arranged on the side plate of the filter box 61 through a pin, and after the filter plate 612 is installed in place, the clamping plate 614 is rotated to block the end part of the clamping groove 611, so that the filter plate 612 is not easy to loosen and separate, and the installation fastness of the filter plate 612 is improved.

Referring to fig. 1 and 7, the air suction unit is disposed at the air passage 11 and outside the paint spray booth body 1. The air suction unit comprises a gas collecting hood 3 covering the air passage 11, an air suction pipe 31 communicated with the gas collecting hood 3 and an air suction fan 32 arranged in the air suction pipe 31. When the suction fan 32 works, negative pressure is generated to lead out the polluted air in the paint spray booth body 1 from the suction pipe 31. Meanwhile, the air pressing unit is matched, so that directional air flow is formed in the paint spray booth body 1, the polluted air can flow to the air passing channel 11 directionally, and the polluted air is purified by the water circulation purification unit.

Referring to fig. 1 and 8, the exhaust gas guided out by the air suction unit is introduced into the aerosol absorption purification unit. The aerosol absorption purification unit comprises a rectangular box body 8, one side of the box body 8 is communicated with an air inlet pipe 86 for air inlet, and the other opposite side is communicated with an air outlet pipe 87 for discharging treated air. A vertical partition plate 85 is provided in the box body 8, and the partition plate 85 partitions the inner space of the box body 8 into a first adsorption region located on the side of the air inlet pipe 86 and a second adsorption region located on the side of the air outlet pipe 87.

Referring to fig. 1 and 8, two organic cotton filter plates 83 are disposed in parallel in the first adsorption zone, and the organic cotton filter plates 83 are disposed in parallel to the partition plate 85. The organic cotton filter plate 83 is composed of a rectangular plate frame, a grating covering the plate frame and organic adsorption cotton filled and clamped in the grating. The exhaust gas entering the box 8 through the inlet pipe 86 is purified by the two organic cotton filter plates 83 in sequence, and the moisture and the fine liquid droplet-shaped pollutants are adsorbed and trapped. Two activated carbon adsorption plates 84 are arranged in the second adsorption area in parallel, the activated carbon adsorption plates 84 are arranged along the horizontal direction, and two through grooves 851 are formed in the partition plate 85 and used for communicating the first adsorption area with the second adsorption area. The two through grooves 851 are respectively located between the top walls of the upper activated carbon adsorption plate 84 and the box body 8 and between the bottom walls of the lower activated carbon adsorption plate 84 and the box body 8, so that the air subjected to adsorption treatment in the first adsorption region is divided into two paths, the two paths respectively penetrate through the lower activated carbon adsorption plate 84 from bottom to top, and the two paths penetrate through the upper activated carbon adsorption plate 84 from top to bottom and are purified. The activated carbon adsorption plate 84 is embedded with activated carbon adsorption particles, which can effectively remove colored substances, fine liquid drops, malodorous substances and the like in the air. After the treatment of aerial fog absorption purification unit, the air that derives from in the spray booth body 1 is further purified.

Referring to fig. 1 and 8, both the organic cotton filter plate 83 and the activated carbon adsorption plate 84 are detachably disposed in the box 8, and in order to facilitate replacement/cleaning of the organic cotton filter plate 83 and the activated carbon adsorption plate 84, a box door 81 which can be opened by rotation is disposed on a side surface of the box 8.

Referring to fig. 8 and 9, each organic cotton filter plate 83 is mounted by two U-shaped mounting plates 82 with opposite openings, and the U-shaped mounting plates 82 for fixing the organic cotton filter plates 83 are respectively arranged on the inner top wall and the inner bottom wall of the box body 8 along the width direction of the box body 8. Every activated carbon adsorption plate 84 is installed through the relative U type mounting panel 82 inlay card of two openings equally, and the U type mounting panel 82 of fixed activated carbon adsorption plate 84 sets up along the width direction of box 8, and sets up in baffle 85, and the piece sets up in the inside wall of box 8.

Referring to fig. 1, the photo-oxidation purification unit includes a photo-oxidation catalytic waste gas purifier 9 communicated with an outlet pipe 87 on a tank 8. The high-energy high-ozone UV ultraviolet light beam generated in the photo-oxidation catalytic waste gas purifier 9 decomposes oxygen molecules in the air to generate free oxygen, namely active oxygen, and the free oxygen carries out unbalance of positive and negative electrons so that the free oxygen needs to be combined with the oxygen molecules to generate ozone. The ozone has strong oxidizing effect on organic matters and has instant effect of removing malodorous gas and other irritant odor in the waste gas. Meanwhile, the photo-oxidation catalytic waste gas purifier 9 can generate high-energy C-wave light beams and ozone to carry out a synergistic decomposition oxidation reaction on the malodorous gas, so that the malodorous gas substances are degraded and converted into low-molecular compounds, water and carbon dioxide, and then are discharged outdoors through an exhaust pipeline. In addition, the high-energy UV light beam generated by the photo-oxidation catalytic waste gas purifier 9 cracks the molecular bonds of bacteria in the malodorous gas, Destroys Nucleic Acid (DNA) of the bacteria, and then carries out oxidation reaction through ozone, thereby thoroughly achieving the purposes of deodorizing and killing the bacteria.

The working principle is as follows:

through pressing the wind unit and induced drafting the unit and cooperateing, constantly introduce fresh air in to spray booth body 1 on the one hand, dilute contaminated air, on the other hand makes the contaminated air directional flow to lead out from air passage 11 of the 1 lateral wall of spray booth body. When the polluted air passes through the air passage 11, the polluted air is settled and purified by the water circulation purification unit, and the air purified by the water circulation purification unit is guided into the aerosol adsorption unit and is sequentially adsorbed and purified by the organic cotton filter plate 83 and the activated carbon adsorption plate 84. The air which is not completely purified is then introduced into the photo-oxidative catalytic exhaust gas purifier 9 to be completely purified. Therefore, a better construction environment can be kept in the paint spray booth, the content of discharged gas pollutants is extremely low and meets the requirement of environmental protection, and compared with the paint spray booth in the prior art, the problems that the secondary pollution is easily caused by moisture in the paint spray booth and water containing pollutants due to water spray purification are difficult to occur are solved.

The above-mentioned embodiments are merely illustrative and not restrictive, and those skilled in the art can modify the embodiments without inventive contribution as required after reading this specification, but only fall within the scope of the claims of the present invention.

Claims

1. The utility model provides a spray booth with air purification system which characterized in that: comprises a paint spray booth body (1), a compressed air unit, a water circulation purification unit, an air suction unit, an air mist adsorption purification unit and a light oxygen purification unit;

the air pressing unit is arranged on the top wall of the paint spray booth body (1) and used for pressing air into the paint spray booth body (1);

the side wall of the paint spray booth body (1) is provided with an air passage (11), and the water circulation purification unit comprises a water collection tank (6) arranged at the air passage (11), a water spraying tank (4) arranged right above the water collection tank (6), and a water guide plate (5) fixedly arranged between the water collection tank (6) and the water spraying tank (4); a reuse water pump (615) is communicated between the water collecting tank (6) and the water spraying tank (4) through a pipeline; a water spraying pipe (41) communicated with the water spraying tank (4) is arranged at the bottom of the water spraying tank (4), and a plurality of water spraying holes (411) are formed in the water spraying pipe (41); the bottom end of the water guide plate (5) is suspended over the water collection tank (6); the water guide plate (5) is an arc-shaped plate protruding towards the inner side of the paint spray booth body (1), and at least one convex rib (51) is arranged on the water guide plate (5) along the horizontal direction; a filter tank (61) positioned in the water collecting tank (6) is arranged on the side wall of the water collecting tank (6), and the top wall of the filter tank (61) is flush with the opening of the water collecting tank (6); the bottom plate of the filter box (61) is a filter plate (612) which is detachably arranged; the reuse water pump (615) is communicated with the filter tank (61) through a pipeline;

the air suction unit is arranged at the air passage (11) and positioned on the outer side of the side wall of the paint spray booth body (1) so as to guide air in the paint spray booth into the aerosol adsorption and purification unit; the aerosol adsorption purification unit comprises a box body (8), and a partition plate (85) is arranged in the box body (8); the box body (8) is divided into a first adsorption area and a second adsorption area by the partition plate (85); at least one organic cotton filter plate (83) is arranged in the first adsorption zone along the vertical direction, and at least one activated carbon adsorption plate (84) is arranged in the second adsorption zone along the horizontal direction; the side wall of the box body (8) far away from the second adsorption area is communicated with an air inlet pipe (86), and the side wall of the box body (8) far away from the first adsorption area is provided with an air outlet pipe (87); a through groove (851) communicated with the first adsorption area and the second adsorption area is arranged on the partition plate (85), and the communicated parts of the through groove (851) and the air outlet pipe (87) and the box body (8) are respectively positioned at the upper side and the lower side of the activated carbon adsorption plate (84); the two organic cotton filter plates (83) are arranged in parallel, and the two activated carbon adsorption plates (84) are arranged in parallel; the organic cotton filter plate (83) and the activated carbon adsorption plate (84) can be detachably arranged in the box body (8);

the aerial fog absorption purification unit is communicated with the air suction unit and is used for carrying out absorption impurity removal on the air led out by the air suction unit;

the light oxygen purification unit is communicated with the gas outlet end of the gas spray adsorption purification unit to perform catalytic oxidation purification on the gas led out by the gas spray adsorption purification unit.

2. The paint spray booth with an air purification system of claim 1, wherein: the water circulation purification unit further comprises a flocculating agent box (7), and a liquid adding pump (71) is connected between the flocculating agent box (7) and the water pouring box (4) through a pipeline.

3. The paint spray booth with an air purification system of claim 1, wherein: the air compression unit comprises an air guide pipe (2) communicated with the top wall of the paint spray booth body (1) and an air compression fan (21) arranged in the air guide pipe (2).

4. The paint spray booth with an air purification system of claim 1, wherein: the air suction unit comprises a gas collecting hood (3) covering the gas passing channel (11) and an air suction pipe (31) communicated with the gas collecting hood (3), and an air suction fan (32) is arranged in the air suction pipe (31).