CN203507753U - Purification system specially used for industrially volatilizable organic pollutants in spray painting workshop - Google Patents

Purification system specially used for industrially volatilizable organic pollutants in spray painting workshop Download PDF

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Publication number
CN203507753U
CN203507753U CN201320605116.9U CN201320605116U CN203507753U CN 203507753 U CN203507753 U CN 203507753U CN 201320605116 U CN201320605116 U CN 201320605116U CN 203507753 U CN203507753 U CN 203507753U
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China
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gas
heater
catalysis
desorption
outlet
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CN201320605116.9U
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Chinese (zh)
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朱殿兴
刘光明
冯正
赵崇光
谷德明
刘迎春
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Tianjin Saizhi Science And Technology Development Co Ltd
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Tianjin Saizhi Science And Technology Development Co Ltd
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Abstract

The utility model relates to a purification system specially used for industrially volatilizable organic pollutants in a spray painting workshop. The purification system comprises a catalysis intake heater, a catalysis bed, a catalysis fan, a heat exchanger, an adsorption bed, an adsorption fan, a spray filter device, a flame arrester, a filter, a desorbed gas circulation fan, a desorbed gas circulation heater and an adsorption bed desorption heater, wherein an industrially volatilizable organic pollutant waste gas inlet, a purified gas outlet, a desorbed gas output port, a desorbed gas input port, a desorbed gas circulation outlet and a desorbed gas circulation inlet are formed in the adsorption bed; the heat exchanger is provided with a catalysis tail gas inlet, a catalysis tail gas outlet, a catalysis gas inlet, a catalysis gas outlet, a desorption gas delivery inlet and a desorption gas delivery outlet. According to the purification system disclosed by the utility model, the heat efficiency of treatment is increased, the heat loss is reduced, the heat recovery utilization rate is increased, the temperature in the catalysis bed is more uniform during combustion, the combustion efficiency and the purification rate are increased, and heat exchange is improved, so that the heat energy is reasonably utilized, and the requirements of energy conservation and emission reduction are met.

Description

Be exclusively used in the industry volatilizable organic pollutant purifying system of painting workshop
Technical field
The utility model belongs to cleaning system field, especially a kind of industry volatilizable organic pollutant purifying system that is exclusively used in painting workshop.
Background technology
Raising along with people's living standard, people's environmental pollution is more and more paid attention to, this word of PM2.5 occurring is recently exactly one of index of atmosphere pollution, and industrial volatile organic pollutants is that people's health is endangered to one of maximum pollutant in PM2.5, in the cleaning system that processing industrial volatile organic pollutants is used at present, capital equipment comprises adsorbent bed and catalytic bed, catalytic bed is made building enclosure by heat resisting steel sheet material or industrial furnace building material conventionally, in its existing catalytic bed structure, air inlet and air outlet are located at the two ends up and down of catalytic bed, although existing structure can be realized catalytic combustion, but there are the following problems: 1, the thermal losses of catalytic bed furnace binding own is large, recuperation of heat utilization ratio is lower, 2, non-uniform temperature in catalytic bed furnace binding, totally be centre temperature high, edge temperature is low, reduced industrial volatile organic pollutants efficiency of combustion, affect the purifying rate of catalytic combustion, 3, energy-saving effect is poor, do not meet energy-saving and emission-reduction requirement, in desorption process, adsorbent bed desorption gas concentration can not well be controlled in addition, affect catalytic combustion efficiency and heat utilization rate, and often mixing paint coating cloud at some paint spraying workshop industrial volatile organic pollutants, when adsorbent bed adsorbs, painting coating cloud can be attached on the sorbing material in adsorbent bed, cause adsorbent bed cisco unity malfunction, reduce purified treatment efficiency, improved purified treatment cost, impact is normal produces.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of industry volatilizable organic pollutant purifying system that is exclusively used in painting workshop is provided, this cleaning system has effectively improved the thermal efficiency of processing, reduce thermal losses, improve recuperation of heat utilization rate, in catalytic bed during burning in desorption system, temperature is more even, efficiency of combustion and purifying rate have been improved, increased heat exchange and more rationally utilized heat energy, met energy-saving and emission-reduction requirement, the gas temperature of input catalytic bed can effectively be controlled.
The utility model solves its technical problem and is achieved through the following technical solutions:
Be exclusively used in an industry volatilizable organic pollutant purifying system for painting workshop, it comprises catalysis air intake heater, catalytic bed, catalysis blower fan, heat exchanger, adsorbent bed, absorption blower fan, spray filter, spark arrester, filter, desorption gas circulating fan, desorption gas recirculation heater and adsorbent bed desorption heater, be provided with industrial volatile organic pollutants exhaust gas inlet on adsorbent bed, purified gas outlet, desorption waste gas delivery outlet, desorption gas input port, desorption gas loop exit and desorption gas loop head, this industrial volatile organic pollutants exhaust gas inlet connects a spark arrester by filter, this spark arrester connects a spray filter by pipeline, purified gas outlet connects an absorption blower fan by pipeline, and heat exchanger is provided with catalysis gas inlet, the outlet of catalysis tail gas, the import of catalysis gas, the outlet of catalysis gas, desorption entrance and the desorption outlet of supplying gas of supplying gas, desorption gas loop exit connects desorption gas recirculation heater air inlet by pipeline, this desorption gas recirculation heater air outlet connects desorption gas circulating fan air inlet by pipeline, this desorption gas circulating fan air outlet connects the desorption gas loop head on adsorbent bed by pipeline, the desorption gas loop exit of heat exchanger and desorption gas loop head are connected on the pipeline between desorption gas recirculation heater and desorption gas circulating fan by pipeline respectively, the catalysis gas outlet of heat exchanger connects the catalysis gas inlet of heat exchanger by catalysis air intake heater and catalytic bed, the outlet of catalysis tail gas connects the desorption gas entrance of adsorbent bed by adsorbent bed desorption heater, the catalysis gas import of heat exchanger connects the desorption waste gas delivery outlet of adsorbent bed by catalysis blower fan.
And, described catalytic bed comprises airscoop shroud, body of heater, air leaving cover, body of heater upper end is fixedly mounted with airscoop shroud, body of heater lower end is fixedly mounted with air leaving cover, body of heater comprise body of heater peripheral board with and the bottom plate that is fixedly mounted with of the upper head plate that is fixedly mounted with of upper end and its lower end, at body of heater peripheral board outer wall, be evenly fixed with heat-insulation layer, coaming plate in one body of heater is set in body of heater peripheral board, in body of heater, between coaming plate and body of heater peripheral board, be arranged alternately air intake duct and gas off-take, the import of air intake duct is arranged on upper head plate, the outlet of air intake duct is arranged between bottom plate and the interior coaming plate of body of heater, the import of gas off-take is arranged between upper head plate and the interior coaming plate of body of heater, the outlet of gas off-take is arranged on bottom plate, on the upper head plate middle part of corresponding airscoop shroud import, be provided with air inlet kuppe, on below upper head plate middle part, be provided with combustion gas kuppe, in body of heater corresponding to air intake port, be provided with catalytic bed heater, below the bottom plate middle part of corresponding air leaving cover outlet, be provided with the kuppe of giving vent to anger, airscoop shroud connects catalysis air intake heater, air leaving cover connects catalysis gas inlet.
And described air intake duct is identical with the quantity of gas off-take and be evenly alternately arranged in body of heater between coaming plate and body of heater peripheral board.
And described air inlet kuppe is positive rectangular pyramid structure, combustion gas kuppe and the kuppe of giving vent to anger are inverted positive rectangular pyramid structure.
And, described air intake duct adopt rectangular steel pipe and be arranged on body of heater peripheral board with the interior coaming plate of body of heater between, gas off-take is surrounded by coaming plate in air intake duct rectangle steel tube wall, body of heater peripheral board and the body of heater of its both sides.
And, in the body of heater of described catalytic bed heater top, be provided with catalyst bracket, catalyst layer is installed on catalyst bracket.
And, on described airscoop shroud, be provided with explosion-proof relief mouth.
And, described 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, the first filter course is set respectively from bottom to up in tower body, the second filter course and demist layer, below the first filter course, be evenly equipped with bottom shower nozzle, between the first filter course and the second filter course, be evenly equipped with middle part shower nozzle, between the second filter course and demist layer, be evenly equipped with top shower nozzle, tower body air outlet one side is fixedly mounted with a filter, this filter air inlet is communicated with tower body air outlet, this filter is provided with filter air outlet, in filter, be horizontally disposed with particle filter course, filter air outlet connects spark arrester by pipeline.
And the first described filter course below is provided with arc wind waveguide plate, this arc wind waveguide plate is corresponding with air inlet, and tower body bottom is provided with aqua storage tank, and aqua storage tank bottom is provided with discharge outlet.
And the first described filter course comprises the foamed ceramics of full paving on filtering grid and filtering grid, the second filter course comprises the foamed ceramics of full paving on filtering grid and filtering grid.
Advantage of the present utility model and beneficial effect are:
1, originally be exclusively used in the industry volatilizable organic pollutant purifying system of painting workshop and be provided with industrial volatile organic pollutants exhaust gas inlet on adsorbent bed, purified gas outlet, desorption waste gas delivery outlet, desorption gas input port, desorption gas loop exit and desorption gas loop head, this industrial volatile organic pollutants exhaust gas inlet connects a spark arrester by filter, this spark arrester connects a spray filter by pipeline, purified gas outlet connects an absorption blower fan by pipeline, heat exchanger is provided with catalysis gas inlet, the outlet of catalysis tail gas, the import of catalysis gas, the outlet of catalysis gas, desorption entrance and the desorption outlet of supplying gas of supplying gas, desorption gas loop exit connects desorption gas recirculation heater air inlet by pipeline, this desorption gas recirculation heater air outlet connects desorption gas circulating fan air inlet by pipeline, this desorption gas circulating fan air outlet connects the desorption gas loop head on adsorbent bed by pipeline, the desorption gas loop exit of heat exchanger and desorption gas loop head are connected on the pipeline between desorption gas recirculation heater and desorption gas circulating fan by pipeline respectively, the catalysis gas outlet of heat exchanger connects the catalysis gas inlet of heat exchanger by catalysis air intake heater and catalytic bed, the outlet of catalysis tail gas connects the desorption gas entrance of adsorbent bed by adsorbent bed desorption heater, the catalysis gas import of heat exchanger connects the desorption waste gas delivery outlet of adsorbent bed by catalysis blower fan, this structure has realized the process imagine of introducing again catalytic bed when the interior gas industry volatile organic pollutants concentration of desorption heating circulation system reaches self-sustaining burning concentration, make the catalytic bed after preheating can enter fast self-sustaining burning state, make the heat feedback that catalytic combustion produces be 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 for next adsorbent bed, carry out desorption preheating simultaneously, reach design conditions requirement, effectively play a role.For minimizing auxiliary heating, saving energy consumption create conditions.
2, originally be exclusively used in heat exchanger in the industry volatilizable organic pollutant purifying system of painting workshop and be provided with catalysis gas inlet, the outlet of catalysis tail gas, the import of catalysis gas, the outlet of catalysis gas, desorption entrance and the desorption outlet of supplying gas of supplying gas, entrance and the desorption outlet of supplying gas of supplying gas of this desorption is connected in parallel on the pipeline between desorption gas recirculation heater and desorption gas circulating fan by pipeline, supply gas device for cleaning pipeline that entrance connects of desorption is crossed triple valve and is communicated on the pipeline between desorption gas recirculation heater and desorption gas circulating fan, this structure can be sent the catalytic bed catalysis tail gas of self-sustaining burning into plate type heat exchanger and reach industrial volatile organic pollutants desorption temperature in adsorbent bed by heat exchange, even if can close electric heater to save electric energy, especially for a plurality of adsorbent beds, be connected to while circulating desorption in cleaning system, adsorbent bed output concentration can meet catalytic bed self-sustaining burning concentration, during self desorption, recyclegas temperature can meet by plate type heat exchanger, only realized and used electric heater in initial heating, all the other times can be closed the self-holding heat supply that electric heater is realized whole cleaning system, greatly saved electric energy.
3, being originally exclusively used in the industry volatilizable organic pollutant purifying system of painting workshop 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.
4, originally be exclusively used in catalytic bed in the industry volatilizable organic pollutant purifying system of painting workshop and comprise airscoop shroud, body of heater, air leaving cover, body of heater upper end is fixedly mounted with airscoop shroud, body of heater lower end is fixedly mounted with air leaving cover, body of heater comprise body of heater peripheral board with and the bottom plate that is fixedly mounted with of the upper head plate that is fixedly mounted with of upper end and its lower end, at body of heater peripheral board outer wall, be evenly fixed with heat-insulation layer, coaming plate in one body of heater is set in body of heater peripheral board, in body of heater, between coaming plate and body of heater peripheral board, be arranged alternately air intake duct and gas off-take, the import of air intake duct is arranged on upper head plate, the outlet of air intake duct is arranged between bottom plate and the interior coaming plate of body of heater, the import of gas off-take is arranged between upper head plate and the interior coaming plate of body of heater, the outlet of gas off-take is arranged on bottom plate, on the upper head plate middle part of corresponding airscoop shroud import, be provided with air inlet kuppe, on below upper head plate middle part, be provided with combustion gas kuppe, in body of heater corresponding to air intake port, be provided with catalytic bed heater, below the bottom plate middle part of corresponding air leaving cover outlet, be provided with the kuppe of giving vent to anger, airscoop shroud connects catalysis air intake heater, air leaving cover connects catalysis gas inlet, air intake duct is set for this kind of over-over mode and gas off-take can be realized the even air inlet of catalytic bed bottom of furnace body surrounding, thereby the industrial volatile organic pollutants that makes to enter body of heater is attracted to the surface of cat ceramic carrier more uniformly, make to burn evenly in body of heater, high-temperature gas after burning refluxes downwards evenly by gas off-take, make bottom of furnace body temperature-compensating even, overcome in prior art catalytic bed body of heater centre temperature high, the shortcoming that temperature low heating in edge is uneven, efficiency of combustion and purifying rate have been improved, through heat exchanger, catalytic bed catalytic combustion heat further can be utilized, realize energy-saving and emission-reduction.
5, originally the industry volatilizable organic pollutant purifying system that is exclusively used in painting workshop is provided with air inlet kuppe on the upper head plate middle part of corresponding airscoop shroud import, on below upper head plate middle part, be provided with combustion gas kuppe, in body of heater corresponding to air intake port, be provided with heater, this heater is packed on body of heater peripheral board, below the bottom plate middle part of corresponding air leaving cover outlet, be provided with the kuppe of giving vent to anger, air inlet kuppe is positive rectangular pyramid structure, combustion gas kuppe and the kuppe of giving vent to anger are inverted positive rectangular pyramid structure, this kind of structural design can effectively realize even air inlet, evenly burning, the VOCs gas uniform burning enters gas off-take, effectively improve catalytic bed edge temperature, after entering into air leaving cover, evenly discharge, for furnace binding realizes high burning efficiency and purifying rate lays the first stone.
6, being originally exclusively used in the industry volatilizable organic pollutant purifying system of painting workshop front end is provided with catalysis air intake heater and in catalytic bed, is provided with catalytic bed heater, it is fast that this kind arranges firing rate, efficiency is high, be arranged on air intake port position, be conducive to abundant burning, improve purifying rate, thermocouple is installed in addition on sidewall of the furnace body and facilitates temperature monitoring in body of heater, improve security.
7, the industry volatilizable organic pollutant purifying system that is originally exclusively used in painting workshop adopts over-over mode that air intake duct and gas off-take are set, and effectively the recycling of catalytic combustion heat is performed to ultimate attainment.Utilize catalyst combustion reaction heat to carry out preheating to entering the gas of catalytic bed.This warm belongs to countercurrent flow, for the high-temperature catalytic tail gas flowing through in the air flue being formed by coaming plate in body of heater and body of heater peripheral board, belongs to following current heat exchange for the air-flow in catalytic bed, gas in air intake duct is heated in three directions, and make heat exchange unit to greatest extent near thermal source, reduce heat loss, improve heat exchange efficiency, to guarantee that catalytic bed reaches catalysis initiation temperature at the stylish VOCs gas entering of normal combustion, contribute to maintain that catalyticing combustion process is stable carries out, reduce and even break away from the dependence to auxiliary electrical heater.
8, be originally exclusively used in high-temperature tail gas that in the industry volatilizable organic pollutant purifying system of painting workshop, catalytic combustion produces along gas off-take, it is the process that body of heater wall is back to catalytic bed lower part outlet, catalytic bed fringe region is carried out to back feeding heating, contribute to the maintenance of catalytic bed bulk temperature with even, impel catalytic combustion to be evenly distributed in whole catalytic bed cross section, improve catalytic combustion purifying rate, and form benign cycle thus, be beneficial to catalytic combustion and carry out continually and steadily.
9, being originally exclusively used in the air inlet kuppe and the combustion gas kuppe that in the industry volatilizable organic pollutant purifying system of painting workshop, on upper head plate, arrange is design for disassembly, has facilitated the replacing of catalytic bed body of heater inner catalyst, has improved production efficiency.
10, be originally exclusively used in that in the industry volatilizable organic pollutant purifying system of painting workshop, air intake duct can be different from the quantity of gas off-take, also can be identical, air intake duct sectional area can equal gas off-take sectional area, air intake duct sectional area also can be greater than gas off-take sectional area, air intake duct sectional area can also be less than gas off-take sectional area, according to climate reasons, VOCs gas treatment amount and catalyst use amount, determine different air intake ducts and the cross-section relation between gas off-take, make it more adapt to the processing requirements of different situations.
11, be originally exclusively used in the industry volatilizable organic pollutant purifying system of painting workshop air intake duct adopt rectangular steel pipe and be arranged on body of heater peripheral board with the interior coaming plate of body of heater between, gas off-take is surrounded by coaming plate in air intake duct rectangle steel tube wall, body of heater peripheral board and the body of heater of its both sides, this kind of mode design can effectively be reduced steel use amount, reduce construction costs, for energy-saving and cost-reducing new design, reach processing requirements completely.
12, being originally exclusively used in body of heater peripheral board cross section in the industry volatilizable organic pollutant purifying system of painting workshop is rectangle or square or circular, in body of heater, coaming plate cross section is rectangle or square or circular, air intake duct cross section is rectangle or square or fan-shaped or circular or encircle fan-shapedly, and gas off-take cross section is rectangle or square or fan-shaped or circular or encircle fan-shaped.This kind of Structural Transformation mainly adapts to difform catalytic bed profile, facilitates the design of various situations.
13, be originally exclusively used on the airscoop shroud in the industry volatilizable organic pollutant purifying system of painting workshop and be provided with explosion-proof relief mouth, improved the security of catalytic bed, prevent the generation of security incident.
14 the utility model heat exchangers are plate type heat exchanger, heat exchanger is provided with entrance and the desorption outlet of supplying gas of supplying gas of catalysis gas inlet, the outlet of catalysis tail gas, the import of catalysis gas, the outlet of catalysis gas, desorption, can more high efficiencyly utilize heat energy, reduce the dependence to electric energy.
15, spray filter in the utility model 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, the first filter course is set respectively from bottom to up in tower body, the second filter course and demist layer, below the first filter course, be evenly equipped with bottom shower nozzle, between the first filter course and the second filter course, be evenly equipped with middle part shower nozzle, between the second filter course and demist layer, be evenly equipped with top shower nozzle, tower body air outlet one side is fixedly mounted with a filter, this filter air inlet is communicated with tower body air outlet, this filter is provided with filter air outlet, in filter, be horizontally disposed with particle filter course, filter air outlet connects spark arrester by pipeline, this structure sprays coating cloud wash solution by shower nozzle and forms umbrella interception paint coating cloud, by bottom shower nozzle, three grades, middle part shower nozzle and top shower nozzle tackles and are removed and paint coating cloud, by demist layer, remove water smoke again and export pure industrial volatile organic pollutants, after adsorbing by adsorbent bed, by absorption blower fan, gas discharging up to standard is entered to atmosphere.
16, the first filter course of the utility model spray filter comprises the foamed ceramics of full paving on filtering grid and filtering grid, the second filter course comprises the foamed ceramics of full paving on filtering grid and filtering grid, in this structure, on filtering grid, the foamed ceramics of full paving is to have microcellular structure, must be through thering is microcellular structure foamed ceramics when mist enters air inlet and makes progress by wind deflector, this micropore upper reaches coating cloud wash solution, mist by time will fully contact with coating cloud wash solution, contribute to like this to remove paint coating cloud.
In 17 the utility model, 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 spraying forms umbrella, effectively cover the gaseous mixture rising, effectively isolate paint coating cloud, the first filter course below is provided with wind deflector, this wind deflector is corresponding with air inlet, and wind deflector is arc, contributes to air intake to reduce resistance.
18, the utility model has effectively improved the thermal efficiency of processing, reduce thermal losses, improve recuperation of heat utilization rate, in catalytic bed during burning in desorption system, temperature is more even, efficiency of combustion and purifying rate have been improved, increased heat exchange and more rationally utilized heat energy, met energy-saving and emission-reduction requirement, the gas temperature of input catalytic bed can effectively be controlled.
Accompanying drawing explanation
Fig. 1 is system connection diagram of the present utility model;
Fig. 2 is the utility model catalytic bed structural representation;
Fig. 3 is the right view of Fig. 2;
Fig. 4 is that the A-A of Fig. 3 is to cutaway view;
Fig. 5 is the structural representation (omitting heater, heat-insulation layer, thermocouple and the kuppe of giving vent to anger) of the body of heater of the utility model catalytic bed;
Fig. 6 is that the B-B of Fig. 5 is to cutaway view (omit catalyst bracket and catalyst layer);
Fig. 7 is the top view of Fig. 5;
Fig. 8 is the upward view of Fig. 5;
Fig. 9 is the stereogram (omitting heater, heat-insulation layer, thermocouple, kuppe, catalyst bracket and catalyst layer) of the body of heater of the utility model catalytic bed;
Figure 10 is the utility model heat exchanger structure schematic diagram;
Figure 11 is the structural representation of the utility model spray filter;
Figure 12 is the top view of Figure 11;
Figure 13 is the utility model spray filter perspective view;
Figure 14 is that the A-A of Figure 13 is to cutaway view;
Figure 15 is the tower body perspective view of the utility model spray filter.
The specific embodiment
Below by specific embodiment, the utility model is described in further detail, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
Be exclusively used in an industry volatilizable organic pollutant purifying system for painting workshop, it comprises catalysis air intake heater 2, catalytic bed 1, catalysis blower fan 20, heat exchanger 3, adsorbent bed 10, absorption blower fan 18, spark arrester 7, spray filter 6, filter 8, desorption gas circulating fan 12, desorption gas recirculation heater 14 and adsorbent bed desorption heater 4, be provided with industrial volatile organic pollutants exhaust gas inlet 9 on adsorbent bed, purified gas outlet 17, desorption waste gas delivery outlet 16, desorption gas input port 5, desorption gas loop exit 19 and desorption gas loop head 11, this industrial volatile organic pollutants exhaust gas inlet connects a spark arrester by filter, this spark arrester connects a spray filter by pipeline, purified gas outlet connects an absorption blower fan by pipeline, and heat exchanger is provided with catalysis gas inlet 46, catalysis tail gas outlet 51, catalysis gas import 48, catalysis gas outlet 47, desorption entrance 50 and the desorption outlet 49 of supplying gas of supplying gas, desorption gas loop exit connects desorption gas recirculation heater air inlet by pipeline, this desorption gas recirculation heater air outlet connects desorption gas circulating fan air inlet by pipeline, this desorption gas circulating fan air outlet connects the desorption gas loop head on adsorbent bed by pipeline, the desorption gas loop exit of heat exchanger and desorption gas loop head are connected on the pipeline between desorption gas recirculation heater and desorption gas circulating fan and by triple valve 13 and are controlled by pipeline respectively, the catalysis gas outlet of heat exchanger connects the catalysis gas inlet of heat exchanger by catalysis air intake heater and catalytic bed, the outlet of catalysis tail gas connects the desorption gas entrance of adsorbent bed by adsorbent bed desorption heater, the catalysis gas import of heat exchanger connects the desorption waste gas delivery outlet of adsorbent bed by catalysis blower fan.Catalytic bed in the utility model comprises airscoop shroud 23, body of heater 25, air leaving cover 29, body of heater is arranged on support 31, body of heater upper end is fixedly mounted with airscoop shroud, airscoop shroud import 21 is set on airscoop shroud, body of heater lower end is fixedly mounted with air leaving cover, on air leaving cover, set out gas hood outlet 30, body of heater comprise body of heater peripheral board 42 with and the bottom plate 28 that is fixedly mounted with of the upper head plate 24 that is fixedly mounted with of upper end and its lower end, at body of heater peripheral board outer wall, be evenly fixed with heat-insulation layer 36, coaming plate 43 in one body of heater is set in body of heater peripheral board, in body of heater, between coaming plate and body of heater peripheral board, be arranged alternately air intake duct 32 and gas off-take 41, the import 44 of air intake duct is arranged on upper head plate, the outlet 40 of air intake duct is arranged between bottom plate and the interior coaming plate of body of heater, the import 33 of gas off-take is arranged between upper head plate and the interior coaming plate of body of heater, the outlet 45 of gas off-take is arranged on bottom plate, on the upper head plate middle part of corresponding airscoop shroud import, be provided with air inlet kuppe 34, on below upper head plate middle part, be provided with combustion gas kuppe 35, in body of heater corresponding to air intake port, be provided with catalytic bed heater 27, below the bottom plate middle part of corresponding air leaving cover outlet, be provided with the kuppe 39 of giving vent to anger, airscoop shroud connects catalysis air intake heater, air leaving cover connects catalysis gas inlet, the quantity of air intake duct and gas off-take is identical and be evenly alternately arranged in body of heater between coaming plate and body of heater peripheral board.Air intake duct can be not identical with the quantity of gas off-take yet, described be arranged in body of heater the air intake duct in opposite between coaming plate and body of heater peripheral board and air intake duct can be one by one corresponding or air intake duct and gas off-take corresponding one by one, air intake duct shown in the present embodiment accompanying drawing 8 and gas off-take quantity are 20 and be evenly alternately arranged in body of heater between coaming plate and body of heater peripheral board, adopt air intake duct and gas off-take corresponding mode one by one, air intake duct sectional area can equal gas off-take sectional area, air intake duct sectional area also can be greater than gas off-take sectional area, air intake duct sectional area can also be less than gas off-take sectional area.For the air intake duct in energy-saving and cost-reducing this catalytic bed furnace binding adopts rectangular steel pipe and is arranged in body of heater peripheral board and body of heater between coaming plate, gas off-take is surrounded by coaming plate in air intake duct rectangle steel tube wall, body of heater peripheral board and the body of heater of its both sides, body of heater peripheral board cross section is rectangle or square or circular, in body of heater, coaming plate cross section is rectangle or square or circular, air intake duct cross section is rectangle or square or fan-shaped or circular or encircle fan-shapedly, and gas off-take cross section is rectangle or square or fan-shaped or circular or encircle fan-shaped.Air inlet kuppe is positive rectangular pyramid structure, combustion gas kuppe and the kuppe of giving vent to anger are inverted positive rectangular pyramid structure, in the body of heater of catalytic bed heater top, be provided with catalyst bracket 38, catalyst layer 37 is installed on catalyst bracket, this catalytic bed heater is electric heating tube group, electric heating tube quantity can be determined according to actual conditions, on airscoop shroud, be provided with explosion-proof relief mouth 22, adsorbent bed temperature sensor is installed on adsorbent bed, adsorbent bed concentration sensor 15 and differential manometer, Tube Temperature Sensor and pipeline concentration sensor are installed on pipeline, heat exchanger is plate type heat exchanger.Thermocouple 26 is installed on sidewall of the furnace body.In the present embodiment, the quantity of thermocouple is three, is packed in respectively the San Ge position, upper, middle and lower of sidewall of the furnace body.Catalytic bed in use VOCs gas enters through air inlet kuppe gas uniform and flows to the Fighter Inlet upper head plate from the import of airscoop shroud, by inlet duct flow, arrive catalytic bed body of heater below, meeting bottom plate stops to turn back and enters in catalytic bed body of heater, aperture through heater and cat ceramic honeycomb substrate burns, the combustion gas kuppe that gas after burning meets the inversion rectangular pyramid structure below end plate evenly enters the air intake duct rectangle steel tube wall by gas off-take both sides, the gas off-take that in body of heater peripheral board and body of heater, coaming plate surrounds, from gas off-take outlet, through the kuppe of giving vent to anger, evenly flow out air leaving cover outlet.
Spray filter in the utility model comprises a tower body 54, a side lower part at tower body is made air inlet 56, air outlet 59 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 64 in tower body, the second filter course 62 and demist layer 60, demist layer is demister, this demister forms three-legged structure, below the first filter course, be evenly equipped with bottom shower nozzle 67, between the first filter course and the second filter course, be evenly equipped with middle part shower nozzle 63, between the second filter course and demist layer, be evenly equipped with top shower nozzle 61, tower body air outlet one side is fixedly mounted with a filter 53, this filter air inlet is communicated with tower body air outlet, this filter is provided with air outlet 52, this filter air outlet connects spark arrester by pipeline, in filter, be horizontally disposed with particle filter course 57, filter endoparticle thing filter course below is provided with drainage plate 58, bottom shower nozzle, middle part shower nozzle, 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 with wind deflector 65, this wind deflector is corresponding with air inlet, wind deflector is arc, blow more stable, tower body bottom is provided with aqua storage tank 66, aqua storage tank bottom is provided with discharge outlet 55, the first filter course comprises the foamed ceramics 70 of full paving on filtering grid 69 and filtering grid, the second filter course comprises the foamed ceramics of full paving on filtering grid and filtering grid, supporting clapboard 68 is all installed between the first filter course and the second filter course and at the second filter course between demist layer.In use, before air intake, first open the sprinkling that shower nozzle carries out coating cloud wash solution, injected water in the microcellular structure that the foamed ceramics of full paving on filtering grid is had, the coating cloud wash solution that spiral nozzle sprays forms after umbrella, pass into the gaseous mixture containing the industrial volatile organic pollutants of paint coating cloud, paint coating cloud is respectively by bottom shower nozzle, on the filtering grid of the first filter course and its, be abound with foamed ceramics, middle part shower nozzle, on the filtering grid of the second filter course and its, be abound with foamed ceramics, the dissolving of the coating cloud wash solution of top shower nozzle, can effectively remove paint coating cloud, pure industrial volatile organic pollutants enters filter after demister, through the filtration of particle is directly sent into adsorbent bed adsorption treatment from the utility model filter air outlet, the gas of processing is by the direct safety dumping of absorption blower fan.
Actual motion compliance test result of the present utility model: this new catalytic pool furnace body structure in actual use, after conventional preheating, passes into VOCs gas, after catalytic combustion occurs, cuts off electrical heating.Within VOCs gas concentration meets the period of minimum ignition concentration, realize self-sustaining burning completely, without any additional auxiliary thermal source, the catalyticing combustion process catalytic bed temperature short time reaches 650 ℃, most time maintains between 400 ℃-500 ℃, and flameholding, fluctuates less.San Ge region, catalytic bed upper, middle and lower temperature instrumentation reading approaches, and uniformity of temperature profile is described, exit gas detects, and VOCs purifying rate is not less than 98%, meets relevant national standard requirement completely.
While being originally exclusively used in the industry volatilizable organic pollutant purifying system work of painting workshop, spray filter is gone out the paint coating cloud in industrial volatile organic pollutants, pure industrial volatile organic pollutants enter adsorbent bed absorption saturated after, start to carry out desorption circulation and improve adsorbent bed desorption output concentration, after reaching catalytic bed burning concentration, by Self controlling valve, control the material getting off to catalytic bed output desorption, through catalytic bed burning rear portion clean gas, directly discharge, another part clean gas is supplied with adsorbent bed desorption by circulating line and is used, heat energy in system recycles by heat exchanger, at utmost reduce energy consumption, especially by various heater opening times in effectively minimizing system of heat exchanger energy transmission, reach the object of whole system self-sustaining burning.

Claims (10)

1. an industry volatilizable organic pollutant purifying system that is exclusively used in painting workshop, is characterized in that: comprise catalysis air intake heater, catalytic bed, catalysis blower fan, heat exchanger, adsorbent bed, absorption blower fan, spray filter, spark arrester, filter, desorption gas circulating fan, desorption gas recirculation heater and adsorbent bed desorption heater, be provided with industrial volatile organic pollutants exhaust gas inlet on adsorbent bed, purified gas outlet, desorption waste gas delivery outlet, desorption gas input port, desorption gas loop exit and desorption gas loop head, this industrial volatile organic pollutants exhaust gas inlet connects a spark arrester by filter, this spark arrester connects a spray filter by pipeline, purified gas outlet connects an absorption blower fan by pipeline, and heat exchanger is provided with catalysis gas inlet, the outlet of catalysis tail gas, the import of catalysis gas, the outlet of catalysis gas, desorption entrance and the desorption outlet of supplying gas of supplying gas, desorption gas loop exit connects desorption gas recirculation heater air inlet by pipeline, this desorption gas recirculation heater air outlet connects desorption gas circulating fan air inlet by pipeline, this desorption gas circulating fan air outlet connects the desorption gas loop head on adsorbent bed by pipeline, the desorption gas loop exit of heat exchanger and desorption gas loop head are connected on the pipeline between desorption gas recirculation heater and desorption gas circulating fan by pipeline respectively, the catalysis gas outlet of heat exchanger connects the catalysis gas inlet of heat exchanger by catalysis air intake heater and catalytic bed, the outlet of catalysis tail gas connects the desorption gas entrance of adsorbent bed by adsorbent bed desorption heater, the catalysis gas import of heat exchanger connects the desorption waste gas delivery outlet of adsorbent bed by catalysis blower fan.
2. the industry volatilizable organic pollutant purifying system that is exclusively used in painting workshop according to claim 1, it is characterized in that: described catalytic bed comprises airscoop shroud, body of heater, air leaving cover, body of heater upper end is fixedly mounted with airscoop shroud, body of heater lower end is fixedly mounted with air leaving cover, body of heater comprise body of heater peripheral board with and the bottom plate that is fixedly mounted with of the upper head plate that is fixedly mounted with of upper end and its lower end, at body of heater peripheral board outer wall, be evenly fixed with heat-insulation layer, coaming plate in one body of heater is set in body of heater peripheral board, in body of heater, between coaming plate and body of heater peripheral board, be arranged alternately air intake duct and gas off-take, the import of air intake duct is arranged on upper head plate, the outlet of air intake duct is arranged between bottom plate and the interior coaming plate of body of heater, the import of gas off-take is arranged between upper head plate and the interior coaming plate of body of heater, the outlet of gas off-take is arranged on bottom plate, on the upper head plate middle part of corresponding airscoop shroud import, be provided with air inlet kuppe, on below upper head plate middle part, be provided with combustion gas kuppe, in body of heater corresponding to air intake port, be provided with catalytic bed heater, below the bottom plate middle part of corresponding air leaving cover outlet, be provided with the kuppe of giving vent to anger, airscoop shroud connects catalysis air intake heater, air leaving cover connects catalysis gas inlet.
3. the industry volatilizable organic pollutant purifying system that is exclusively used in painting workshop according to claim 2, is characterized in that: described air intake duct is identical with the quantity of gas off-take and be evenly alternately arranged in body of heater between coaming plate and body of heater peripheral board.
4. the industry volatilizable organic pollutant purifying system that is exclusively used in painting workshop according to claim 2, is characterized in that: described air inlet kuppe is positive rectangular pyramid structure, and combustion gas kuppe and the kuppe of giving vent to anger are inverted positive rectangular pyramid structure.
5. the industry volatilizable organic pollutant purifying system that is exclusively used in painting workshop according to claim 2, it is characterized in that: described air intake duct adopt rectangular steel pipe and be arranged on body of heater peripheral board with the interior coaming plate of body of heater between, gas off-take is surrounded by coaming plate in air intake duct rectangle steel tube wall, body of heater peripheral board and the body of heater of its both sides.
6. the industry volatilizable organic pollutant purifying system that is exclusively used in painting workshop according to claim 2, is characterized in that: in the body of heater of described catalytic bed heater top, be provided with catalyst bracket, catalyst layer is installed on catalyst bracket.
7. the industry volatilizable organic pollutant purifying system that is exclusively used in painting workshop according to claim 2, is characterized in that: on described airscoop shroud, be provided with explosion-proof relief mouth.
8. the industry volatilizable organic pollutant purifying system that is exclusively used in painting workshop according to claim 1, it is characterized in that: described 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, the first filter course is set respectively from bottom to up in tower body, the second filter course and demist layer, below the first filter course, be evenly equipped with bottom shower nozzle, between the first filter course and the second filter course, be evenly equipped with middle part shower nozzle, between the second filter course and demist layer, be evenly equipped with top shower nozzle, tower body air outlet one side is fixedly mounted with a filter, this filter air inlet is communicated with tower body air outlet, this filter is provided with filter air outlet, in filter, be horizontally disposed with particle filter course, filter air outlet connects spark arrester by pipeline.
9. the industry volatilizable organic pollutant purifying system that is exclusively used in painting workshop according to claim 8, it is characterized in that: the first described filter course below is provided with arc wind waveguide plate, this arc wind waveguide plate is corresponding with air inlet, tower body bottom is provided with aqua storage tank, and aqua storage tank bottom is provided with discharge outlet.
10. the industry volatilizable organic pollutant purifying system that is exclusively used in painting workshop according to claim 8, it is characterized in that: the first described filter course comprises the foamed ceramics of full paving on filtering grid and filtering grid, the second filter course comprises the foamed ceramics of full paving on filtering grid and filtering grid.
CN201320605116.9U 2013-09-27 2013-09-27 Purification system specially used for industrially volatilizable organic pollutants in spray painting workshop Withdrawn - After Issue CN203507753U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103480226A (en) * 2013-09-27 2014-01-01 天津赛智科技发展有限公司 Industrial volatile organic pollutant purifying system dedicated to painting workshops
CN104096446A (en) * 2014-07-28 2014-10-15 广西梧州龙鱼漆业有限公司 Treatment method for exhaust gas produced during paint production and application
CN108844087A (en) * 2018-09-07 2018-11-20 云汇环保科技南通有限公司 A kind of novel C O furnace

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103480226A (en) * 2013-09-27 2014-01-01 天津赛智科技发展有限公司 Industrial volatile organic pollutant purifying system dedicated to painting workshops
CN103480226B (en) * 2013-09-27 2015-05-27 天津赛智科技发展有限公司 Industrial volatile organic pollutant purifying system dedicated to painting workshops
CN104096446A (en) * 2014-07-28 2014-10-15 广西梧州龙鱼漆业有限公司 Treatment method for exhaust gas produced during paint production and application
CN108844087A (en) * 2018-09-07 2018-11-20 云汇环保科技南通有限公司 A kind of novel C O furnace

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