CN213193172U

CN213193172U - UV photodissociation VOC waste gas treatment equipment

Info

Publication number: CN213193172U
Application number: CN202021816307.6U
Authority: CN
Inventors: 吴琼
Original assignee: Zhongshan Geyuan Environmental Protection Equipment Co ltd
Current assignee: Zhongshan Geyuan Environmental Protection Equipment Co ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-05-14
Anticipated expiration: 2030-08-26

Abstract

The utility model discloses a UV photolysis VOC waste gas treatment device, which comprises an air inlet pipe, a dust removal box, a photolysis box, an air outlet pipe, an exhaust fan, an exhaust pipe, an auxiliary frame and a control cabinet; the photolysis tank comprises a photolysis tank body, a funnel-shaped cooling cylinder, a cold water pipe arranged on the inner wall of the cooling cylinder, a connector, a transverse lamp tube, a longitudinal lamp tube and a drain hole; a heat insulation plate is arranged at the top of the photolysis box body; the gas inlet pipe is provided with a first gas detector; through the heat insulating board, the synergism of cooling cylinder and cold water pipe, make the indoor temperature reduction of photodissociation, avoid ozonolysis, improve ozone content, cooperate with first gas detector through switch board, adjust purification capacity according to waste gas content, realize environmental protection and energy saving, still through dust removal case cooperation photodissociation case, do the dust removal processing to the waste gas that gets into the photodissociation incasement, it piles up on horizontal fluorescent tube and vertical fluorescent tube and reduces ultraviolet intensity to avoid the dust to get into the photodissociation incasement back, lead to purification efficiency to descend.

Description

UV photodissociation VOC waste gas treatment equipment

Technical Field

The utility model relates to a waste gas purification equipment, concretely relates to UV photodissociation VOC waste gas treatment equipment.

Background

The UV photolysis air purifier is a device for irradiating waste gas by using a special high-energy high-ozone UV beam to crack the waste gas; irradiating the waste gas by using a special high-energy high-ozone UV light beam to crack the waste gas as follows: ammonia, trimethylamine, hydrogen sulfide, methylthio hydrogen, methyl mercaptan, methyl sulfide, dimethyl disulfide, carbon disulfide and styrene, sulfides H2S, VOCs, molecular bonds of benzene, toluene and xylene, so that pollutant molecules in a free state and ozone are oxidized and combined into small-molecule harmless or low-harm compounds; in order to improve the purification efficiency, the conventional UV photolysis waste gas equipment is generally provided with a plurality of UV lamp tubes to improve the irradiation intensity of ultraviolet rays, so that the generation amount of ozone is improved, but the conventional equipment is in a straight-through type arrangement, is not beneficial to retention and accumulation of ozone, is heavier than air, is easy to sink to the lower layer of the air, causes incomplete waste gas treatment, and causes great waste due to the arrangement of the plurality of UV lamp tubes; and current UV photodissociation exhaust equipment sets up outside the factory building more, and sets up the ceiling and avoid the high temperature at the equipment top, leads to the ozone of equipment easily to absorb heat and decompose to reduce purification efficiency.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a UV photodissociation VOC exhaust gas treatment equipment with active cooling, ozone content are high, purification efficiency is high and energy-concerving and environment-protective.

In order to solve the technical problem, the technical scheme of the utility model is that: the UV photolysis VOC waste gas treatment equipment comprises an air inlet pipe, a dust removal box, an exhaust fan, an exhaust pipe and a control cabinet, wherein the dust removal box is arranged on the air inlet pipe and is communicated with the air inlet pipe; photolysis case includes the photolysis box, sets up inside the photolysis box, for the cooling cylinder that leaks hopper-shaped, set up cold water pipe on the cooling cylinder inner wall sets up cooling bobbin base portion and refute the joint with cold water pipe intercommunication, set up on the cooling cylinder inner wall, for the horizontal fluorescent tube of equidistance distribution, set up on the cooling cylinder, be located two vertical fluorescent tube between the horizontal fluorescent tube, and set up photolysis bottom of the case's drainage hole.

Preferably, the transverse lamp tubes comprise first installation seats which are symmetrically arranged on the inner wall of the cooling cylinder, and the transverse lamp tubes are arranged between the first installation seats.

Preferably, the longitudinal lamp tube comprises second installation seats which are symmetrically arranged and arranged on the inner wall of the cooling cylinder, and the longitudinal lamp tube is arranged between the first installation seats.

Preferably, the top of the photolysis box body is provided with a heat insulation plate.

As preferred, the dust removal case is in including the dust removal box, set up dust removal box inside bottom, for two draw-in grooves of symmetry setting, set up dust removal box top and correspond the plug mouth of draw-in groove, and pass through the dust guard that plug mouth and draw-in groove correspond the scarf joint.

Preferably, a first gas detector is further arranged on the gas inlet pipe between the dust removal box and the photolysis box.

Preferably, the gas outlet pipe is sequentially provided with an electronic flow valve and a second gas detector which are electrically connected with the control cabinet.

Preferably, the exhaust pipe is provided with a non-return cover.

The utility model discloses technical effect mainly embodies: through the synergistic effect of the heat insulation plate, the cooling cylinder and the cold water pipe, the temperature in the photolysis box is reduced, the ozone decomposition is avoided, the ozone content is improved, the cooling cylinder is matched with the air inlet pipe, the waste gas enters the funnel-shaped cold cylinder to form a spirally-rising air channel, the contact time of the waste gas with the transverse lamp tube and the longitudinal lamp tube is prolonged, the ozone generation amount is improved, the purification efficiency is improved, the control cabinet is matched with the first gas detector, the purification capacity is adjusted according to the waste gas content, the environmental protection and energy saving are realized, the dust removal box is matched with the photolysis box, the waste gas entering the photolysis box is subjected to dust removal treatment, the dust is prevented from entering the photolysis box and then being accumulated on the transverse lamp tube and the longitudinal lamp tube, the ultraviolet intensity is reduced, and; therefore, the device has the advantages of active cooling, high ozone content, high purification efficiency, energy conservation and environmental protection.

Drawings

FIG. 1 is a structural diagram of the UV photolysis VOC waste gas treatment device of the utility model;

FIG. 2 is a structural diagram of the optical demultiplexer of FIG. 1;

FIG. 3 is a top view of the light decomposition box of FIG. 1;

fig. 4 is a structural view of the dust removing box of fig. 1.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

In the present embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a bolt fixing manner, a pin connecting manner, or the like, which is commonly used in the prior art, and therefore, details thereof are not described in the present embodiment.

The utility model provides a UV photodissociation VOC waste gas treatment equipment, as shown in figure 1, including intake pipe 1, set up in intake pipe 1 on and with the dust removal case 2 of intake pipe 1 intercommunication, set up in intake pipe 1 end and with the photodissociation case 3 of intake pipe 1 intercommunication, set up in the outlet duct 4 at 3 side tops of photodissociation case, set up in 4 terminal exhaust fans 5 of outlet duct set up in the blast pipe 6 at 5 tops of exhaust fans, utilize the exhaust fan 5 to arrange the harmless gas after handling from blast pipe 6 to the atmosphere in for support the auxiliary frame 7 of blast pipe 6 and exhaust fans 5, and set up in the switch board 8 of 3 sides of photodissociation case; a first gas detector 11 is further arranged on the gas inlet pipe 1 between the dust removal box 2 and the photolysis box 3 and is used for detecting the content of VOC waste gas in the gas inlet pipe 1; the gas outlet pipe 4 is sequentially provided with an electronic flow valve 41 and a second gas detector 42 which are electrically connected with the control cabinet 8, the control cabinet 8 can adjust the opening of the electronic flow valve 41 to change the exhaust amount, and the second gas detector 42 is also used for detecting the VOC gas residue in the gas outlet pipe 4; be provided with on the blast pipe 6 and end contrary cover 61, prevent that atmosphere from flowing backward into photodissociation case 3, lead to piling up the dust in the photodissociation case 3.

As shown in fig. 2-3, the photolysis tank 3 includes a photolysis tank 31, and is disposed inside the photolysis tank 31, and is a cooling cylinder 32 with a funnel shape, and the funnel-shaped setting results in that the upper end opening of the cooling cylinder 32 is larger than the lower end opening, so that the upper end gas flow rate of the cooling cylinder 32 is slowed down, and the loss of ozone is avoided, the cold water pipe 33 disposed on the inner wall of the cooling cylinder 32 is disposed at the connection joint 34 which is disposed at the bottom of the cooling cylinder 32 and communicated with the cold water pipe 33, and the cold water pipe 33 disposed in the cooling cylinder 32 is beneficial to reducing the temperature in the photolysis tank 3, and avoiding the endothermic decomposition of ozone, thereby improving the ozone content; the horizontal lamp tubes 35 are arranged on the inner wall of the cooling cylinder 32 and are distributed at equal intervals, the longitudinal lamp tube 36 is arranged on the cooling cylinder 32 and is positioned between the two horizontal lamp tubes 35, and the leakage discharge hole 37 is arranged at the bottom of the photolysis box body 31; the two ends of the transverse lamp tube 35 are provided with first installation seats 351; two ends of the longitudinal lamp tube 36 are provided with second mounting seats 361; the transverse lamp tube 35 and the longitudinal lamp tube 36 generate ultraviolet rays after being electrified, which is beneficial to decomposing oxygen in waste gas and recombining the oxygen into ozone by the ultraviolet rays, and the waste gas is oxidized by the ozone to be changed into harmless gas; the top of the photolysis tank body 31 is provided with a thermal insulation plate 311, which is beneficial to further reducing the temperature of the photolysis tank 3.

As shown in fig. 4, the dust removing box 2 includes a dust removing box body 21, and two card slots 22 are symmetrically arranged at the bottom end inside the dust removing box body 21, and are arranged at the top of the dust removing box body 21 and correspond to the inserting and extracting opening 23 of the card slot 22, and the dust-proof plate 24 is correspondingly embedded with the card slot 22 through the inserting and extracting opening 23, and the dust and particles in the waste gas are filtered out through the dust-proof plate 24.

In this example, the model of exhaust fan 5 is 4-72, the model of first gas detector 11 and second gas detector 42 are MS500, the model of electronic flow valve 41 is Q941F-16P, the model of switch board 8 is PLC-S7-200.

The working principle is as follows: step one, be connected to intake pipe 1 with waste gas collection device for waste gas gets into dust removal case 2 earlier, under the filtration of both sides dust guard 24 in dust removal case 2, makes dust and granule in the waste gas flowed down, and dust guard 24 wherein can take out through draw-in groove 22 plug mouth 23, conveniently to the clearance and the change of dust guard 24.

And step two, the waste gas passes through the first gas detector 11 in the gas inlet pipe 1, the content of the waste gas is detected by using the first gas detector 11, the information is fed back to the control cabinet 8, the control cabinet 8 adjusts the electrifying quantity of the transverse lamp tubes 35 and the longitudinal lamp tubes 36 according to the content of the waste gas, and when the content of the waste gas is low, only the transverse lamp tubes 35 and the longitudinal lamp tubes 36 which are positioned at the lowest end are electrified, so that intelligent adjustment, energy conservation and environmental protection are realized.

After the waste gas enters the photolysis tank 3, because the cooling cylinder 32 is funnel-shaped and the air inlet pipe 1 is communicated with the tangent position of the lower end section circle of the cooling cylinder 32, the waste gas enters the cooling cylinder 32 and then spirally flows under the action of the inner wall of the cooling cylinder 32, so that the contact time of the waste gas with the transverse lamp tube 35 and the longitudinal lamp tube 36 is prolonged, more oxygen in the waste gas receives ultraviolet energy and is decomposed and recombined into ozone, and the waste gas is oxidized into pollution-free gas in the middle of the contact of the ozone and other waste gases; the air inlet pipe 1 is connected with the bottom of the cooling cylinder 32, the air outlet pipe 4 is connected with the top of the cooling cylinder 32, so that air must flow from bottom to top, and the mass ratio of ozone to air enables the ozone to sink in the cooling cylinder 32 and accumulate at the bottom of the cooling cylinder 32, so that an ozone layer is formed, and the purification efficiency is further improved.

And step four, enabling pollution-free waste gas to enter the gas outlet pipe 4, and detecting waste gas residues in the gas outlet pipe 4 by using the second VOC gas monitor 42 to ensure that the waste gas is qualified in emission.

And step five, exhausting the pollution-free waste gas from the exhaust pipe 6 by using the exhaust fan 5.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. The UV photolysis VOC waste gas treatment equipment comprises an air inlet pipe, a dust removal box, an exhaust fan, an exhaust pipe and a control cabinet, wherein the dust removal box is arranged on the air inlet pipe and is communicated with the air inlet pipe; the method is characterized in that: photolysis case includes the photolysis box, sets up inside the photolysis box, for the cooling cylinder that leaks hopper-shaped, set up cold water pipe on the cooling cylinder inner wall sets up cooling bobbin base portion and refute the joint with cold water pipe intercommunication, set up on the cooling cylinder inner wall, for the horizontal fluorescent tube of equidistance distribution, set up on the cooling cylinder, be located two vertical fluorescent tube between the horizontal fluorescent tube, and set up photolysis bottom of the case's drainage hole.

2. The UV photolysis VOC exhaust treatment device of claim 1, wherein: two first mounting seats are arranged at two ends of the transverse lamp tube.

3. The UV photolysis VOC exhaust treatment device of claim 1, wherein: two second mounting seats are arranged at two ends of the longitudinal lamp tube.

4. The UV photolysis VOC exhaust treatment device of claim 1, wherein: and a heat insulation plate is arranged at the top of the photolysis box body.

5. The UV photolysis VOC exhaust treatment device of claim 1, wherein: the dust removal case is in including the dust removal box, the setting two draw-in grooves that set up for the symmetry of the inside bottom of dust removal box set up dust removal box top and correspond the plug mouth of draw-in groove, and pass through the dust guard that plug mouth and draw-in groove correspond the scarf joint.

6. The UV photolysis VOC exhaust treatment device of claim 1, wherein: the dust removal case with still be provided with first gas detector in the intake pipe between the photodissociation case.

7. The UV photolysis VOC exhaust treatment device of claim 1, wherein: and the gas outlet pipe is sequentially provided with an electronic flow valve and a second gas detector which are electrically connected with the control cabinet.

8. The UV photolysis VOC exhaust treatment device of claim 1, wherein: and the exhaust pipe is provided with a non-return cover.