CN103495328A - Output-concentration-controllable adsorption system special for painting workshop - Google Patents

Abstract

The invention relates to an output-concentration-controllable adsorption system special for a painting workshop. The adsorption system comprises a spraying filter device and an adsorption bed with a controllable output concentration, wherein the spraying filter device comprises a tower body; one side of an air outlet of the tower body is fixedly provided with a filter; an air inlet of the filter is communicated with an air outlet of the tower body; the filter is internally provided with a particle filter layer horizontally; a desorption gas circulation outlet is formed in the adsorption bed with the controllable output concentration; the desorption gas circulation outlet is connected with an air inlet of an electric heater through a pipeline; an air outlet of the electric heater is connected with an air inlet of a desorption gas circulating fan through a pipeline; an air outlet of the desorption gas circulating fan is connected with a desorption gas circulation inlet in the adsorption bed through a pipeline. The adsorption system outputs industrial volatile organic pollutants with the controllable concentration, provides a guarantee for sustainable energy conservation, and can effectively separate oil paint fog from the industrial volatile organic pollutants, thus improving the processing efficiency of the industrial volatile organic pollutants and guaranteeing the regular production.

Description

Be exclusively used in the controlled adsorption system of painting workshop output concentration

Technical field

The invention belongs to the adsorption system field, especially a kind of controlled adsorption system of painting workshop output concentration that is exclusively used in.

Background technology

Maximum no more than industrial volatile organic pollutants to people's health harm in PM2.5, in prior art, industrial volatile organic pollutants is mainly adopted to the catalytic bed firing method, after by adsorbent bed, industrial volatile organic pollutants being carried out to Adsorption Concentration, carry out again desorption and enter the catalytic bed burning, industrial volatile organic pollutants is converted into carbon dioxide and water, and the gas temperature after burning is higher to be reclaimed catalytic combustion heat and use it for the technological temperature requirement that desorption heats and maintain catalysis system by plate type heat exchanger.When existing adsorbent bed heats from starting desorption, the circulatory system accesses catalytic bed.Because VOCs concentration in initial segment and latter end gas is low, the combustion heat produced can not meet the system operation demand of " controlling oneself ", maintaining the heating of catalytic bed temperature and adsorbent bed desorption can only rely on auxiliary thermal source to be supplemented for a long time, therefore cause the system operation energy consumption very high, often mixing the paint coating cloud at some paint spraying workshop industrial volatile organic pollutants in addition, when adsorbent bed adsorbs, the paint coating cloud can be attached on the sorbing material in adsorbent bed, cause the adsorbent bed cisco unity malfunction, reduce purified treatment efficiency, improved the purified treatment cost, impact is normal produces.

Summary of the invention

The object of the invention is to overcome the deficiencies in the prior art, a kind of controlled adsorption system of painting workshop output concentration that is exclusively used in is provided, this adsorption system structural configuration is simple, design science reasonable, output industrial volatile organic pollutants concentration is controlled, supplied guarantee for continuing Energy Conservation, can effectively the paint coating cloud be separated with industrial volatile organic pollutants, improve the industrial volatile organic pollutants treatment effeciency, ensure normally and produce.

The present invention solves its technical problem and is achieved through the following technical solutions:

A kind of controlled adsorption system of painting workshop output concentration that is exclusively used in, comprise spray filter and the controlled adsorbent bed of output concentration, its spray filter comprises a tower body, a side lower part at tower body is made air inlet, air outlet is made on the tower body top of a side relative to air inlet, it arranges respectively from bottom to up the first filter course in tower body, the second filter course and demist layer, be evenly equipped with the bottom shower nozzle below the first filter course, be evenly equipped with the middle part shower nozzle between the first filter course and the second filter course, be evenly equipped with the top shower nozzle between the second filter course and demist layer, tower body air outlet one side is fixedly mounted with a filter, this filter air inlet is communicated with the tower body air outlet, be horizontally disposed with the particle filter course in filter, the air outlet of this filter connects the industrial volatile organic pollutants exhaust gas inlet of the controlled adsorbent bed of output concentration by pipeline, the controlled adsorbent bed of output concentration comprises an adsorbent bed, the desorption gas loop exit is set on this adsorbent bed, this desorption gas loop exit connects the electric heater air inlet by pipeline, this electric heater air outlet connects desorption gas circulating fan air inlet by pipeline, this desorption gas circulating fan outlet connects the desorption gas loop head on adsorbent bed by pipeline, be provided with industrial volatile organic pollutants exhaust gas inlet and purified gas outlet on adsorbent bed, be provided with desorption waste gas delivery outlet and desorption gas input port on adsorbent bed.

And, the adsorbent bed temperature sensor is installed on described adsorbent bed, the online VOCs concentration sensor of adsorbent bed is installed on adsorbent bed, difference gauge is installed on adsorbent bed, be provided with Tube Temperature Sensor on pipeline, be provided with the online VOCs concentration sensor of pipeline on pipeline.

And described demist layer is demister.

And described bottom shower nozzle, middle part shower nozzle, top shower nozzle are spiral nozzle.

And described the first filter course below is provided with wind deflector, this wind deflector is corresponding with air inlet.

And described wind deflector is arc.

And described tower body bottom is provided with aqua storage tank, the aqua storage tank bottom is provided with discharge outlet.

And described the first filter course and second layer filter course include the foamed ceramics of full paving on filtering grid and filtering grid.

And described filter endoparticle thing filter course below is provided with drainage plate.

Advantage of the present invention and beneficial effect are:

1, in the present invention, the controlled adsorbent bed of output concentration comprises an adsorbent bed, on its this adsorbent bed, the desorption gas loop exit is set, this desorption gas loop exit connects the electric heater air inlet by pipeline, this electric heater air outlet connects desorption gas circulating fan air inlet by pipeline, this desorption gas circulating fan outlet connects the desorption gas loop head on adsorbent bed by pipeline, this structure has realized when in the desorption heating circulation system, gas industry volatile organic pollutants concentration reaches self-sustaining burning concentration introducing the process imagine of catalytic bed again, make the catalytic bed after preheating can enter fast the self-sustaining burning state, the heat feedback that catalytic combustion is produced is enough to maintain catalytic bed temperature, and make plate type heat exchanger obtain enough thermals source, for continuing desorption, adsorbent bed provides heat energy, and carry out the desorption preheating for next adsorbent bed simultaneously, reach the design conditions requirement, effectively play a role.For minimizing auxiliary heating, saving energy consumption create conditions.

2, in the present invention, output concentration controlled adsorbent beds is incorporated into catalytic bed by the industrial volatile organic pollutants after desorption again to catalytic bed self-sustaining burning concentration and carries out catalytic combustion, guaranteed catalytic bed temperature, prevent from entering a gas " blast-cold " effect to catalytic bed, effectively prevented catalyst poisoning.

3, in the present invention, spray filter comprises a tower body, a side lower part at tower body is made air inlet, air outlet is made on the tower body top of a side relative to air inlet, it arranges respectively from bottom to up the first filter course in tower body, the second filter course and demist layer, be evenly equipped with the bottom shower nozzle below the first filter course, be evenly equipped with the middle part shower nozzle between the first filter course and the second filter course, be evenly equipped with the top shower nozzle between the second filter course and demist layer, tower body air outlet one side is fixedly mounted with a filter, this filter air inlet is communicated with the tower body air outlet, be horizontally disposed with the particle filter course in filter, the air outlet of this filter connects the industrial volatile organic pollutants exhaust gas inlet of the controlled adsorbent bed of output concentration by pipeline, this structure sprays the coating cloud wash solution by shower nozzle and forms umbrella interception paint coating cloud, by the bottom shower nozzle, three grades, middle part shower nozzle and top shower nozzle tackles and are removed and paint coating cloud, remove water smoke by the demist layer again and export pure industrial volatile organic pollutants.

4, in the present invention, the bottom shower nozzle of spray filter, middle part shower nozzle, top shower nozzle are spiral nozzle, guarantee that like this coating cloud wash solution sprayed forms umbrella, effectively cover the gaseous mixture risen, and effectively isolate the paint coating cloud.

5, in the present invention, the first filter course below of spray filter is provided with wind deflector, and this wind deflector is corresponding with air inlet, and wind deflector is arc, contributes to air intake to reduce resistance.

6, in the present invention, the first filter course of spray filter comprises the full foamed ceramics spread on filtering grid and filtering grid, the second filter course comprises the foamed ceramics of full paving on filtering grid and filtering grid, the foamed ceramics completely spread on filtering grid in this structure is to have microcellular structure, must be through thering is the microcellular structure foamed ceramics when mist enters air inlet and makes progress by wind deflector, flowing the coating cloud wash solution in this micropore, mist by the time will fully contact with the coating cloud wash solution, contribute to like this to remove the paint coating cloud.

7, structural configuration of the present invention is simple, design science reasonable, output industrial volatile organic pollutants concentration is controlled, supplied guarantee for continuing Energy Conservation, can effectively the paint coating cloud be separated with industrial volatile organic pollutants, improve the industrial volatile organic pollutants treatment effeciency, ensure normally and produce.

The accompanying drawing explanation

Fig. 1 is that system of the present invention connects block diagram;

The structural representation that Fig. 2 is spray filter of the present invention;

The top view that Fig. 3 is Fig. 2;

Fig. 4 is spray filter perspective view of the present invention;

The A-A that Fig. 5 is Fig. 4 is to cutaway view;

The tower body perspective view that Fig. 6 is spray filter of the present invention.

The specific embodiment

Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.

A kind of controlled adsorption system of painting workshop output concentration that is exclusively used in, comprisespray filter 17 and the controlledadsorbent bed 2 of output concentration, this spray filter comprises atower body 20, a side lower part at tower body is madeair inlet 22,air outlet 25 is made on the tower body top of a side relative to air inlet, it arranges respectively from bottom to up thefirst filter course 30 in tower body, thesecond filter course 28 anddemist layer 26, the demist layer is demister, this demister forms three-legged structure, be evenly equipped withbottom shower nozzle 33 below the first filter course, be evenly equipped with middlepart shower nozzle 29 between the first filter course and the second filter course, be evenly equipped withtop shower nozzle 27 between the second filter course and demist layer, tower body air outlet one side is fixedly mounted with afilter 19, this filter air inlet is communicated with the tower body air outlet, this filter is provided withair outlet 18, be horizontally disposed withparticle filter course 23 in filter, filter endoparticle thing filter course below is provided withdrainage plate 24, the bottom shower nozzle, the middle part shower nozzle, the top shower nozzle is spiral nozzle, the liquid of this spiral nozzle ejection can form umbrella, area coverage is larger, the first filter course below is provided withwind deflector 31, this wind deflector is corresponding with air inlet, wind deflector is arc, blow more stable, the tower body bottom is provided withaqua storage tank 32, the aqua storage tank bottom is provided withdischarge outlet 21, the first filter course comprises thefoamed ceramics 36 of full paving on filtering grid 35 and filtering grid, the second filter course comprises the foamed ceramics of full paving on filtering grid and filtering grid, supportingclapboard 34 all is installed between the first filter course and the second filter course and at the second filter course between the demist layer, the controlled adsorbent bed of output concentration comprises an adsorbent bed, be provided with industrial volatile organic pollutants exhaust gas inlet 3 and purifiedgas outlet 13 on this adsorbent bed, the industrial volatile organic pollutants exhaust gas inlet connects the air outlet of the filter of spray filter by pipeline, the air inlet of the tower body of spray filter connects spark arrester by pipeline, this spark arrester connects the industrial volatile organic pollutants exhaust gas source by pipeline, the clean gas that the purified gas outlet of adsorbent bed connects after the discharge main air blower is realized directly processing by pipeline directly discharges, be provided with desorption wastegas delivery outlet 12 and desorption gas input port 1 on adsorbent bed, this desorption waste gas delivery outlet can directly connect catalytic bed by pipeline, also can after carrying out heat exchange, plate type heat exchanger enter again catalytic bed, adsorbent bed temperature sensor 5 is installed on adsorbent bed, the onlineVOCs concentration sensor 11 of adsorbent bed anddifference gauge 10, desorptiongas loop exit 14 is set on adsorbent bed, this desorption gas loop exit connects electric heater 7 air inlets by pipeline, this electric heater air outlet connects desorptiongas circulating fan 8 air inlets by pipeline 9, this desorption gas circulating fan outlet connects the desorptiongas loop head 4 on adsorbent bed by pipeline, this structure has realized that adsorbent bed exports the control of industrial volatile organic pollutants concentration and temperature when desorption, be conducive to realize the self-sustaining burning of catalytic bed, the unlatching rate of electric heater in the whole industrial volatile organic pollutants treatment system of decrease, realize energy-saving and cost-reducing, be provided with Tube Temperature Sensor 6 on pipeline, be provided with the onlineVOCs concentration sensor 15 of pipeline on pipeline.

Spray filter in use, first open the sprinkling that shower nozzle carries out the coating cloud wash solution before air intake, injected water in the microcellular structure that the foamed ceramics of full paving on filtering grid is had, after the coating cloud wash solution that spiral nozzle sprays forms umbrella, pass into the gaseous mixture of paint coating cloud and industrial volatile organic pollutants, the paint coating cloud is respectively by the bottom shower nozzle, be abound with foamed ceramics on the filtering grid of the first filter course and its, the middle part shower nozzle, be abound with foamed ceramics on the filtering grid of the second filter course and its, the dissolving of the coating cloud wash solution of top shower nozzle, can effectively remove the paint coating cloud, pure industrial volatile organic pollutants enters filter after demister, through the filtration of particle is directly sent into to the adsorbent bed adsorption treatment from the filter air outlet of spray filter, gas after the adsorbent bed adsorption treatment is discharged byabsorption blower fan 16, this adsorbent bed can provide output concentration controlled industrial volatile organic pollutants waste gas, make catalytic bed can be stablized lasting self-sustaining burning, need not start the heat supply that electric heater just can complete whole cleaning treatment system, making whole cleaning treatment system obtain stable heat energy supplies with, fully reclaim on this basis, effectively utilize the heat energy reclaimed, make system substantially break away from electric heating auxiliary, realize the super low energy consumption operation, meet environmental protection, energy-conservation industrial development direction, it is the first-selected approach that the industrial organic waste-gas purification device obtains marketing.

Claims (9)

1. one kind is exclusively used in the controlled adsorption system of painting workshop output concentration, comprise spray filter and the controlled adsorbent bed of output concentration, it is characterized in that: spray filter comprises a tower body, a side lower part at tower body is made air inlet, air outlet is made on the tower body top of a side relative to air inlet, it arranges respectively from bottom to up the first filter course in tower body, the second filter course and demist layer, be evenly equipped with the bottom shower nozzle below the first filter course, be evenly equipped with the middle part shower nozzle between the first filter course and the second filter course, be evenly equipped with the top shower nozzle between the second filter course and demist layer, tower body air outlet one side is fixedly mounted with a filter, this filter air inlet is communicated with the tower body air outlet, be horizontally disposed with the particle filter course in filter, the air outlet of this filter connects the industrial volatile organic pollutants exhaust gas inlet of the controlled adsorbent bed of output concentration by pipeline, the controlled adsorbent bed of output concentration comprises an adsorbent bed, the desorption gas loop exit is set on this adsorbent bed, this desorption gas loop exit connects the electric heater air inlet by pipeline, this electric heater air outlet connects desorption gas circulating fan air inlet by pipeline, this desorption gas circulating fan outlet connects the desorption gas loop head on adsorbent bed by pipeline, be provided with industrial volatile organic pollutants exhaust gas inlet and purified gas outlet on adsorbent bed, be provided with desorption waste gas delivery outlet and desorption gas input port on adsorbent bed.

2. the painting workshop that is exclusively used according to claim 1 is exported the controlled adsorption system of concentration, it is characterized in that: the adsorbent bed temperature sensor is installed on described adsorbent bed, the online VOCs concentration sensor of adsorbent bed is installed on adsorbent bed, difference gauge is installed on adsorbent bed, be provided with Tube Temperature Sensor on pipeline, be provided with the online VOCs concentration sensor of pipeline on pipeline.

3. the painting workshop that is exclusively used according to claim 1 is exported the controlled adsorption system of concentration, and it is characterized in that: described demist layer is demister.

4. the painting workshop that is exclusively used according to claim 1 is exported the controlled adsorption system of concentration, and it is characterized in that: described bottom shower nozzle, middle part shower nozzle, top shower nozzle are spiral nozzle.

5. the painting workshop that is exclusively used according to claim 1 is exported the controlled adsorption system of concentration, it is characterized in that: described the first filter course below is provided with wind deflector, and this wind deflector is corresponding with air inlet.

6. the painting workshop that is exclusively used according to claim 5 is exported the controlled adsorption system of concentration, and it is characterized in that: described wind deflector is arc.

7. the painting workshop that is exclusively used according to claim 1 is exported the controlled adsorption system of concentration, and it is characterized in that: described tower body bottom is provided with aqua storage tank, and the aqua storage tank bottom is provided with discharge outlet.

8. the painting workshop that is exclusively used according to claim 1 is exported the controlled adsorption system of concentration, and it is characterized in that: described the first filter course and second layer filter course include the foamed ceramics of full paving on filtering grid and filtering grid.

9. the controlled adsorption system of painting workshop output concentration that is exclusively used according to claim 1, is characterized in that: be provided with drainage plate below described filter endoparticle thing filter course.

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