CN205109288U - VOCs exhaust -gas treatment equipment - Google Patents

VOCs exhaust -gas treatment equipment Download PDF

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Publication number
CN205109288U
CN205109288U CN201520812705.3U CN201520812705U CN205109288U CN 205109288 U CN205109288 U CN 205109288U CN 201520812705 U CN201520812705 U CN 201520812705U CN 205109288 U CN205109288 U CN 205109288U
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Prior art keywords
waste gas
water
treatment equipment
gas
equipment
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CN201520812705.3U
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Chinese (zh)
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史德刚
谷晋川
李智
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Chengdu Xin Weilong Machinery Electronic Equipment Co Ltd
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Chengdu Xin Weilong Machinery Electronic Equipment Co Ltd
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Abstract

The utility model provides a VOCs exhaust -gas treatment equipment belongs to chemical industry waste gas technical field. This VOCs exhaust -gas treatment equipment includes: scrubbing tower, dry rose box, gas processor and induced draft system, gas processor include UV photocatalytic treatment ware and plasma treater. The utility model discloses a VOCs exhaust -gas treatment equipment treatment effeciency is higher, the security is higher, exhaust -gas treatment is more thorough. In addition, utilizing this treatment of plants VOCs waste gas, can reduceing the energy consumption greatly, because simple structure, it is convenient to maintain, greatly reduced use cost.

Description

VOCs waste gas treatment equipment
Technical field
The utility model relates to chemical emission processing technology field, in particular to a kind of VOCs waste gas treatment equipment.
Background technology
Along with constantly increasing the weight of of environmental problem, people more and more pay attention to environmental problem, reduced or reduce environmental pollution by various mode.Current, pellet has become the important source of harm air quality, and VOC (being called for short VOCs) forms one of pellet to originate greatly.At present, VOCs is mainly derived from industrial production, in various occasion with an organic solvent, e.g., spray paint, print, metal degreasing and degreasing, adhesive, be engraved in contaminated air during VOC.In order to keep the air quality in environment, people adopt the method such as condensation method, absorption method, absorption process, combustion method, active carbon, plasma, UV photocatalysis, catalytic oxidation to remove volatile organic matter.But above-mentioned certain methods mostly exists that treatment effeciency is low, and use cost is high, the problem that residual volatile organic compound amount is large, and the dirty gas disposal method had even also can produce secondary pollution.The processing limit of existing treatment system and method is difficult to the discharge standard requirement adapting to improve constantly.
Utility model content
The purpose of this utility model is to provide a kind of VOCs waste gas treatment equipment, to improve the treatment effect of VOC, reduces processing cost.
The utility model is achieved in that
A kind of VOCs waste gas treatment equipment, comprising: the scrubbing tower connected successively, dried filter box, gas processer and the induced draught system for being carried out discharging by the waste gas after process;
Described scrubbing tower is provided with air inlet and gas outlet, the air flue passed through for waste gas is provided with in described scrubbing tower, the two ends of described air flue are connected with described air inlet, described gas outlet respectively, described dried filter box is connected with described gas outlet, is provided with spray equipment and filter in described air flue;
Described gas processer comprises UV photocatalysis treatment device and plasma processor, described UV photocatalysis treatment device is connected with described plasma processor, described UV photocatalysis treatment device is connected with described dried filter box, and described plasma processor is connected with described induced draught system.
Preferably, also comprise: for supplying water to described spray equipment and reclaiming the water tank of shower water of described spray equipment, described water tank is arranged at the bottom of described scrubbing tower, and described water tank is connected with described spray equipment by pipeline.Store water in water tank, and supplied water to spray equipment by pipeline, to carry out spray operation.On the other hand, the water of spray equipment ejection carries out shower to waste gas, then falls in water tank the recovery realizing water.The setting of water tank achieves recycling of shower water, reduces water consumption.
Preferably, described filter comprises fixed mount and inserts, and described fixed mount to be arranged in described air flue and to be positioned under described spray equipment, and described inserts is arranged in described fixed mount.Fixed mount is fixed in air flue, air flue as the circulation passage of waste gas, waste gas through fixed mount and with the inserts effect in it, thus waste gas is played to the effect of filtration.
Preferably, described filter also comprises: INVENTIONPaper filter layer, and the section of described INVENTIONPaper filter layer is alveolate texture.INVENTIONPaper filter layer can play the effect of filtration equally to waste gas, the dust material in waste gas is separated in large quantities, so that the subsequent treatment of waste gas.
Preferably, also comprise: for separating of the moisture separator of waste gas and water, described moisture separator to be arranged in described air flue and to be positioned under described gas outlet, described moisture separator comprises water fender, middle water fender, lower water fender, described middle water fender is arranged between described upper water fender, described lower water fender, the section character form structure for it of described middle water fender.When the mixture of waste gas and water flows through moisture separator, water wherein by moisture separator interception, stop, and waste gas is flowed to follow-up operation unit via gas outlet by moisture separator again.
Preferably, also comprise: fire resisting damper, described dried filter box is connected with described gas outlet by described fire resisting damper.The flow channel of waste gas can be opened or close to fire resisting damper, thus block the circulation of waste gas.When the temperature of waste gas is too high, the burning of waste gas may be caused, now, fire resisting damper can be closed, block the flowing of waste gas, avoid waste gas to enter follow-up place's gas processer.
Preferably, also comprise: air-valve, described air-valve is arranged between described fire resisting damper, described dried filter box.Air-valve can cut off the flowing of waste gas where necessary, conveniently can safeguard equipment, repair.
Preferably, described induced draught system comprises: air-introduced machine and exhaust duct, and described exhaust duct is connected with the exhaust outlet of described plasma processor by described air-introduced machine.Waste gas after gas processer process is drawn out of under the swabbing action of air-introduced machine, is then discharged by exhaust duct.The use of air-introduced machine makes the negative pressure be in the whole air ventilation passage of VOCs waste gas treatment equipment to a certain degree, thus waste gas can independently be flowed to the rear end for the treatment of facility, thus can reduce the power needed for waste gas input, reduces the energy consumption of equipment.
Preferably, also comprise: header tank, described header tank is arranged at the bottom of scrubbing tower, and described header tank is provided with discharge outlet.Header tank collects the water sprayed by spray equipment, then exported to outside scrubbing tower, spray equipment is supplied water by a set of independently water system, then spray equipment can spray clean water, thus impurity interference when can avoid cycling use of water in water is to waste gas drip washing decreased effectiveness.
Preferably, also comprise: heat sink, described heat sink is connected with described gas outlet, described dried filter box respectively.Heat sink can carry out cooling process to waste gas, avoids waste gas treatment equipment continuous operation to cause heat accumulation and may occur to burn or the impact of establishing other equipment.
The beneficial effects of the utility model:
The utility model provides a kind of VOCs waste gas treatment equipment, and for the treatment of volatile organic compound from waste gas, it comprises scrubbing tower, dried filter box, gas processer and induced draught system.Be different from existing VOCs exhaust-gas treatment method, the equipment that the utility model provides has higher treatment effeciency.Wherein, electricity consumption device and the VOCs waste gas of plasma processor and UV photocatalysis treatment device are mutually isolated, thus make security performance when processing VOCs waste gas higher.The energy consumption of this treatment facility is lower, easy to maintenance, greatly reduces use cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, be briefly described to the accompanying drawing used required in embodiment below, be to be understood that, the following drawings illustrate only some embodiment of the present utility model, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.
The workflow diagram of a kind of VOCs waste gas treatment equipment that Fig. 1 provides for the utility model embodiment;
The workflow diagram of the another kind of VOCs waste gas treatment equipment that Fig. 2 provides for the utility model embodiment;
The structural representation of the scrubbing tower in the VOCs waste gas treatment equipment that Fig. 3 provides for Fig. 2;
The structural representation of the VOCs waste gas treatment equipment that Fig. 4 provides for Fig. 2.
Description of reference numerals
Scrubbing tower 101; Spray equipment 201; Inserts 202; INVENTIONPaper filter layer 203; Moisture separator 204; Air inlet 205; Gas outlet 206; Header tank 207; Fire resisting damper 301; Air-valve 302; Dried filter box 303; UV photocatalysis treatment device 304; Plasma processor 305; Air-introduced machine 306; Exhaust duct 307.
Detailed description of the invention
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.The assembly of the utility model embodiment describing and illustrate in usual accompanying drawing herein can be arranged with various different configuration and design.Therefore, below to the detailed description of the embodiment of the present utility model provided in the accompanying drawings and the claimed scope of the present utility model of not intended to be limiting, but selected embodiment of the present utility model is only represented.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to define further it and explain in accompanying drawing subsequently.
In description of the present utility model, it should be noted that, term " " center ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, or this utility model product orientation of usually putting or position relationship when using, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second ", " the 3rd " etc. only for distinguishing description, and can not be interpreted as instruction or hint relative importance.
In description of the present utility model, also it should be noted that, unless otherwise clearly defined and limited, term " setting ", " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
Consult Fig. 1 to Fig. 4, the utility model provides a kind of VOCs waste gas treatment equipment, and this treatment facility comprises: the scrubbing tower 101 connected successively, dried filter box 303, gas processer and the induced draught system for being carried out discharging by the waste gas after process.
Wherein, scrubbing tower 101 is provided with air inlet 205 and gas outlet 206, and pending waste gas inputs in scrubbing tower 101 by air inlet 205, discharges after treatment from gas outlet 206, to carry out post-treatment operations.Be provided with the air flue passed through for waste gas in scrubbing tower 101, the two ends of air flue are connected with air inlet 205, gas outlet 206 respectively.Dried filter box 303 is connected with gas outlet 206, is provided with spray equipment 201 and filter in air flue.
Gas processer comprises UV photocatalysis treatment device 304 and plasma processor 305, UV photocatalysis treatment device 304 is connected with plasma processor 305, and UV photocatalysis treatment device is connected with dried filter box 303, and plasma processor 305 is connected with induced draught system.Preferably, the induced draught system in VOCs waste gas treatment equipment comprises: air-introduced machine 306 and exhaust duct 307, and exhaust duct 307 is connected with the exhaust outlet of plasma processor 305 by air-introduced machine 306.Air-introduced machine 306 provides powerful swabbing action, and after making the process of discharging through plasma processor 305, waste gas is drawn out of, and then exports to the external world via exhaust duct 307 and discharges.
The workflow of this VOCs waste gas treatment equipment is as follows:
First, waste gas is inputted in scrubbing tower 101 by air inlet 205, and flowing in air flue.Spray equipment 201 flushing of waste gas in air flue and the filtration of filter, be separated the dust in waste gas with waste gas, to carry out follow-up process.Secondly, the waste gas processed through scrubbing tower 101 is passed into dried filter box 303, and dry filter is want again to filter the moisture in waste gas and dust.Again, waste gas enters gas processer, respectively through UV photocatalysis treatment device 304, plasma processor 305.Finally, be pulled out out outside equipment under the effect at induced draught system of the waste gas of above-mentioned process, discharge.
UV photocatalysis treatment device 304 can produce UV light (ultraviolet), and the volatile organic matter gas in waste gas is irradiated by UV light and issues biochemical reaction, thus volatile organic matter gas is decomposed into harmless material.Further, plasma processor 305 produces plasma and bombards the volatile organic matter gas passed through, plasma and the volatile organic matter gas of high energy interact, and make volatile organic matter gas be that harmless Small molecular or generation chemical reaction generate harmless material by large molecular breakdown.UV photocatalysis treatment device 304 and plasma processor 305 cooperatively interact work, volatile organic matter gas for heterogeneity processes, by the cooperation of UV light and plasma, up hill and dale volatile organic matter gas treatment is fallen, realize nontoxic, innoxious.
Spray equipment 201 in scrubbing tower 101 can directly be supplied water by outside water system, is then reclaimed by the shower water in scrubbing tower 101.Particularly, VOCs waste gas treatment equipment also comprises: for water tower, be arranged at outside scrubbing tower 101, and be connected with spray equipment by pipeline for water tower.Spray equipment 201 sprays water outlet, rinses dust wherein can be washed and separated from the gasly open waste gas.The mixture of dust and water declines the recovery tank entered in scrubbing tower under gravity, and then discharges outside scrubbing tower.
Flusher, except can being supplied water by outside water system, can also be supplied water by scrubbing tower 101 internal unit.Such as, VOCs waste gas treatment equipment arranges the header tank 207 being used for the shower water supplying water and reclaim spray equipment 201 to spray equipment 201, and header tank 207 is arranged at the bottom of scrubbing tower 101, and header tank 207 is connected with spray equipment 201 by pipeline.Water storage in header tank 207, under the effect of water pump, is input to spray equipment 201 by pipeline, then via spray head, water ejection is carried out drip washing to waste gas, converges at subsequently in header tank 207, recycles.Water in header tank 207 is changed after equipment work a period of time, avoids causing the blocking to water pump, pipeline and sprinkling equipment with a large amount of dust in water.Preferably, containing catalytic oxidant in water, such as, titanium dioxide, zinc oxide, di-iron trioxide etc., catalytic oxidant contacts with the volatile organic matter gas in waste gas, makes it oxidation occur and be decomposed.In order to improve the active area of flusher, flusher utilizes nozzle that water is carried out fan-shaped sprinkling, enables water cover the cross section of air flue, thus can contact with volatile organic matter gas and fully contact.
In order to improve the filter effect of scrubbing tower 101 pairs of waste gas, the filter in VOCs waste gas treatment equipment also comprises fixed mount and inserts 202, and fixed mount to be arranged in air flue and to be positioned under spray equipment 201, and inserts 202 is arranged in fixed mount.After waste gas is sprayed the water flushing of device ejection, wherein part dust settling, part dust is agglomerated into larger particle, continues flowing, through fixed mount, and contact with inserts 202 wherein with waste gas.Inserts 202 has larger surface area and numerous hole, and waste gas streams is when inserts 202, and particle is filled material 202 and retains, and gas continues to flow to the back-end in air flue by hole.Inserts 202 can adopt active carbon, aluminium oxide, silica gel, artificial zeolite etc., and it has larger specific area, loose structure, stable chemical property.
Because the interception capacity of inserts 202 pairs of dust has certain limit, when after long-term work, the ability that inserts 202 retains dust declines, and the situations such as blocking may occur hole.Therefore, need inserts 202 to change, the dust in waste gas is retained.Fixed mount is fixed with in the wall in air flue in scrubbing tower 101 by bolt, when needing to change inserts 202, fixed mount is disassembled the replacing carrying out inserts 202.
Further, the filter in VOCs waste gas treatment equipment also comprises INVENTIONPaper filter layer 203, and the section of INVENTIONPaper filter layer 203 is alveolate texture.Waste gas after the preliminary filtration of inserts 202, then by INVENTIONPaper filter layer 203 by secondary filter, stops and the dust be separated in waste gas.INVENTIONPaper filter layer 203 can adopt wet curtain paper, and it has the filter effect of filter paper.Waste gas by wet curtain paper, dust wherein by stop progressively, interception and with the volatile organic matter gas separaion in waste gas, volatile organic matter gas continues to flow to the back-end.
Because waste gas is through the spray effect of flusher, containing a certain amount of water in waste gas, water wherein can play certain impact to the subsequent treatment of volatile organic matter gas, but also has certain pollution, corrosiveness to equipment.For these reasons, VOCs waste gas treatment equipment also includes the moisture separator 204 for separating of waste gas and water, and moisture separator 204 to be arranged in air flue and to be positioned under gas outlet 206.Moisture separator 204 comprises water fender, middle water fender, lower water fender, and middle water fender is arranged between water fender, lower water fender, the section character form structure for it of middle water fender.
The upper water fender of moisture separator 204 and lower water fender stop waste gas air flue, the effect of reduction of speed, make that waste gas contacts with moisture separator 204, the interaction time increases, so that the removal of moisture.Waste gas moves along with middle dash plate current, and the space in middle water fender is the flow channel of waste gas, and produce capillarity, the water adsorption in waste gas is on middle water fender.Middle water fender has structure in a zigzag, and the motion path of waste gas increases, and waste gas flows from bottom to top, moisture can converge at middle water fender and with volatile organic matter gas separaion.In addition, because volatile organic matter gas generally has higher temperature, middle water fender equitemperature is relatively low, and middle water fender and aqueous vapor produce heat exchange, and moisture cools and is condensed into water droplet.Be separated moisture under gravity in waste gas in moisture separator 204, direction flowing at the bottom of the tower of trend scrubbing tower 101, on the one hand, moisture can converge in water tank, carries out for spray equipment 201; On the other hand, the follow-up waste gas carried out in scrubbing tower 101 under the water function flowed downward, can rinse again, will wherein rinse out by dust.
Generally, COVs waste gas has the temperature higher relative to environment, and waste gas moves in equipment, can cause certain thermal shock effect, even may produce the problem of burning to equipment.Therefore, need to control the flowing of waste gas in equipment, to carry out where necessary blocking, isolating, stop the process of waste gas.Particularly, VOCs waste gas treatment equipment also comprises: fire resisting damper 301, and dried filter box 303 is connected with gas outlet 206 by fire resisting damper 301.The gas outlet 206 of scrubbing tower 101 is connected with dried filter box 303 by steel pipe, set temperature sensor in steel pipe, to carry out the detection of temperature.If temperature is too high, then can close fire resisting damper 301, thus close steel pipe, thus block the transport of waste gas to follow-up equipment.
For the VOCs waste gas with high temperature, VOCs waste gas treatment equipment also comprises: heat sink, and heat sink is connected with gas outlet 206, dried filter box respectively.Heat sink reduces the temperature of waste gas, thus reduces waste gas burning, problem to the thermal shock of equipment occur.Such as, arrange a sheathed water cooling tube, pass into normal-temperature water in water cooling tube outside steel pipe, waste gas streams is when the pipeline at water cooling tube place, and its heat is exchanged to the water in water cooling tube, thus realizes cooling.Preferably, the water passing into flowing in water cooling tube, the direction of current and waste gas to transport direction contrary, thus enable the water that the waste gas continuous contact temperature of high temperature is lower, improve cooling effect.
Preferably, VOCs waste gas treatment equipment also comprises: air-valve 302, and air-valve 302 is arranged between fire resisting damper 301, dried filter box 303.Use air-valve 302 to isolate steel pipe, thus cut off the passing into, so that the inspection and maintenance to dried filter box 303, UV photocatalysis treatment device 304, plasma processor 305 of waste gas.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims (10)

1. a VOCs waste gas treatment equipment, is characterized in that, comprising: the scrubbing tower connected successively, dried filter box, gas processer and the induced draught system for being carried out discharging by the waste gas after process;
Described scrubbing tower is provided with air inlet and gas outlet, the air flue passed through for waste gas is provided with in described scrubbing tower, the two ends of described air flue are connected with described air inlet, described gas outlet respectively, described dried filter box is connected with described gas outlet, is provided with spray equipment and filter in described air flue;
Described gas processer comprises UV photocatalysis treatment device and plasma processor, described UV photocatalysis treatment device is connected with described plasma processor, described UV photocatalysis treatment device is connected with described dried filter box, and described plasma processor is connected with described induced draught system.
2. VOCs waste gas treatment equipment according to claim 1, it is characterized in that, also comprise: for supplying water to described spray equipment and reclaiming the water tank of shower water of described spray equipment, described water tank is arranged at the bottom of described scrubbing tower, and described water tank is connected with described spray equipment by pipeline.
3. VOCs waste gas treatment equipment according to claim 2, is characterized in that, described filter comprises fixed mount and inserts, and described fixed mount to be arranged in described air flue and to be positioned under described spray equipment, and described inserts is arranged in described fixed mount.
4. VOCs waste gas treatment equipment according to any one of claim 1 to 3, is characterized in that, described filter also comprises: INVENTIONPaper filter layer, and the section of described INVENTIONPaper filter layer is alveolate texture.
5. VOCs waste gas treatment equipment according to claim 1, it is characterized in that, also comprise: for separating of the moisture separator of waste gas and water, described moisture separator to be arranged in described air flue and to be positioned under described gas outlet, described moisture separator comprises water fender, middle water fender, lower water fender, described middle water fender is arranged between described upper water fender, described lower water fender, the section character form structure for it of described middle water fender.
6. VOCs waste gas treatment equipment according to claim 1 or 5, is characterized in that, also comprise: fire resisting damper, and described dried filter box is connected with described gas outlet by described fire resisting damper.
7. VOCs waste gas treatment equipment according to claim 6, is characterized in that, also comprise: air-valve, and described air-valve is arranged between described fire resisting damper, described dried filter box.
8. VOCs waste gas treatment equipment according to claim 1, is characterized in that, described induced draught system comprises: air-introduced machine and exhaust duct, and described exhaust duct is connected with the exhaust outlet of described plasma processor by described air-introduced machine.
9. VOCs waste gas treatment equipment according to claim 1, is characterized in that, also comprise: header tank, and described header tank is arranged at the bottom of scrubbing tower, and described header tank is provided with discharge outlet.
10. VOCs waste gas treatment equipment according to claim 1, is characterized in that, also comprise: heat sink, and described heat sink is connected with described gas outlet, described dried filter box respectively.
CN201520812705.3U 2015-10-19 2015-10-19 VOCs exhaust -gas treatment equipment Active CN205109288U (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105194965A (en) * 2015-10-19 2015-12-30 成都鑫威隆机电设备有限公司 Equipment for treating waste gas containing VOCs (volatile organic compounds)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105194965A (en) * 2015-10-19 2015-12-30 成都鑫威隆机电设备有限公司 Equipment for treating waste gas containing VOCs (volatile organic compounds)

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