CN203291683U - Organic waste gas treatment device - Google Patents
Organic waste gas treatment device Download PDFInfo
- Publication number
- CN203291683U CN203291683U CN2013203221952U CN201320322195U CN203291683U CN 203291683 U CN203291683 U CN 203291683U CN 2013203221952 U CN2013203221952 U CN 2013203221952U CN 201320322195 U CN201320322195 U CN 201320322195U CN 203291683 U CN203291683 U CN 203291683U
- Authority
- CN
- China
- Prior art keywords
- air
- gas
- surface cooler
- treatment device
- heater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Treating Waste Gases (AREA)
- Drying Of Gases (AREA)
Abstract
The utility model discloses an organic waste gas treatment device which is designed for solving the problems, such as incomplete treatment on organic pollutants, of the existing device. The organic waste gas treatment device comprises a hot air dryer, a surface cooler, an absorbing unit, a dehumidifying unit and a heater, which are orderly communicated through pipelines to form a closed loop. The surface cooler and the heater are respectively an evaporator and a condenser of the same heat pump system, or a cooling end liquid-gas heat exchanger and a heating end liquid-gas heat exchanger of the same heat pump. The organic waste gas treatment device is reasonable in structure, convenient to use and low in manufacture cost, and has a good treatment effect on the organic waste gases including the printing waste gas.
Description
Technical field
The utility model relates to a kind of VOCs treatment device.
Background technology
At present to the processing of organic exhaust gas, generally adopt the microporous materials such as active carbon, NACF to carry out adsorption treatment, then by high-temperature steam, the microporous materials that adsorbs after saturated is carried out to the organic solvent desorption to recycle.Owing to utilizing microporous materials after steam desorption organic solvent with a lot of moisture, cause because humidity is too high, can not being reused for the cyclic drying production and can only directly discharging from the air that adsorption tower is discharged.But the gas of this partial discharge, also with certain density organic exhaust gas composition and temperature, can bring and pollute and wasted heat environment.That is, prior art fails thoroughly to solve the problem of environmental pollution, and, because the recirculated water heat radiation of adsorption tower discharging hot gas and cooling tower makes the operation power consumption of whole system higher, increases operating cost.
The utility model content
A purpose of the present utility model is to propose a kind of VOCs treatment device free from environmental pollution.
Also purpose of the present utility model is to propose the low VOCs treatment device of a kind of energy consumption.
Another purpose of the present utility model is to propose the good VOCs treatment device of a kind of effect on moisture extraction.
For reaching this purpose, the utility model by the following technical solutions:
A kind of VOCs treatment device, described device comprise hot-air drier 6, surface cooler 2, absorbing unit, Dehumidifying element and the heater 5 that forms closed-loop path by pipeline communication; Surface cooler 2 is connected to the air outlet of hot-air drier 6, and heater 5 is connected to the return air inlet of hot-air drier 6; Wherein, hot-air drier 6 for processing, obtain organic exhaust gas and described organic exhaust gas is delivered to surface cooler and access and administers after clean gas recycle; Surface cooler 2 is for processing that pending waste gas is lowered the temperature; Absorbing unit carries out adsorption treatment for the gas after using microporous materials to cooling; Dehumidifying component has condensation and air heat function of exchange, for the gas processing that dehumidifies, rises again to after absorption; Heater 5 is for the gas-heated to after dehumidifying, rising again.
Particularly, described surface cooler 2 and heater 5 are evaporimeter and the condenser of same heat pump.
Particularly, described surface cooler 2 and heater 5 heat end liquid-gas heat exchanger for the refrigeration end liquid of same heat pump-gas heat exchanger and heat pump.
Particularly, described Dehumidifying element is dehumidifier 4; Particularly, described dehumidifier 4 bottoms are provided with draining and control outlet.
Particularly, described Dehumidifying element comprises dehumidifier 4 and the air storage chamber 7 of serial connection; The air intake vent of described air storage chamber 7 connects the air outlet of dehumidifier 4, and the air outlet of described air storage chamber 7 connects the air intake vent of heater 5, and the discharge pipe of described hot-air drier 6 is connected to the return air inlet of described air storage chamber 7.
Further, dehumidifier 4 is constituted by evaporimeter and the condenser of refrigeration system.
Particularly, the absorbing unit of described device comprises at least two absorbers that are set up in parallel between surface cooler 2 and Dehumidifying element, also comprises the second surface cooler 22 and air-valve; The outlet of parsing discharge tube, the other end that described the second surface cooler 22 1 ends connect described absorbing unit are connected to condenser; Each absorber adsorbs air-valve in turn or the desorption drying process for switching.
Each parts of the utility model VOCs treatment device are communicated with successively and form closed loop by pipeline, have effectively absorbed organic matter and in environment, have not discharged gas not up to standard.Surface cooler and heater are evaporimeter and the condenser of same heat pump, or for the refrigeration end liquid of same heat pump-gas heat exchanger and heat pump heat end liquid-gas heat exchanger, heat fully recycles, and has reduced energy consumption.When the organic concentration in pending organic exhaust gas is excessive lower than the air quantity of when setting value or pending organic exhaust gas, can by air storage chamber arrange carry out closed cycle and purify to reduce the improvement amount of single to increase organic concentration or part, improve the efficiency of adsorption cleaning, reduced cost.
The utility model VOCs treatment apparatus structure is reasonable, and is easy to use, and low cost of manufacture is good to the regulation effect of organic exhaust gas.
The accompanying drawing explanation
Fig. 1 is the structural representation of the utility model VOCs treatment device preferred embodiment one;
Fig. 2 is the structural representation of the utility model VOCs treatment device preferred embodiment two;
Fig. 3 is the structural representation of the utility model VOCs treatment device preferred embodiment three.
In figure, be labeled as:
1, heat pump; 2, surface cooler; 3, absorber; 4, dehumidifier; 5, heater; 6, hot-air drier; 7, air storage chamber; 22, the second surface cooler; 31, the first adsorber unit; 32, the second adsorber unit.
The specific embodiment
Below in conjunction with accompanying drawing and by the specific embodiment, further illustrate the technical solution of the utility model.
The utility model VOCs treatment method is for purifying by cooling, absorption, dehumidifying and heating steps the organic exhaust gas that contains organic material in closed-loop path, by the method that will administer the pipeline closure, realize recycling of gas, avoided untreated gas discharging completely and contaminated air.Handled organic exhaust gas comprises printing waste gas, but is not limited only to print waste gas, and all can all can use this method to administer by the organic exhaust gas that the heated-air drying operation produces.
The utility model VOCs treatment method concrete steps are not limit, and can in closing pipe line, the purpose of real VOCs treatment get final product.Wherein, preferably include following step:
Gas after step 6, heating is back to hot-air drier, recycles, and continues this pending product or next pending product are carried out to drying.
Organic exhaust gas can be administered effectively after above-mentioned processing step, gas recycles in closed-loop path, has avoided the pollution to environment.
In order to take full advantage of the energy, to reduce energy consumption, by evaporimeter and the cooling in condenser difference performing step 2 and the heating in step 5 of same heat pump.
The utility model VOCs treatment device comprises by pipeline and is communicated with successively hot-air drier, surface cooler, absorbing unit, Dehumidifying element and the heater that forms closed-loop path; Wherein, processing obtains organic exhaust gas and this organic exhaust gas is delivered to surface cooler preparing to administer in hot-air drier, and the gas after administering is simultaneously regained and recycled use; Surface cooler is to the processing of lowering the temperature of pending waste gas; Gas after absorber uses microporous materials to cooling carries out adsorption treatment, and it is treated as to clean gas; Gas dehumidify, the rise again processing of dehumidifier after to absorption; Gas is got back to hot-air drier after the heating of heater again, continues to recycle processing and obtains organic exhaust gas.
Each parts of the utility model VOCs treatment device are communicated with successively and form closed loop by pipeline, effectively absorbed in gas organic matter and not to discharging gas not up to standard in environment.
Wherein, surface cooler and heater are evaporimeter and the condenser of same heat pump; Perhaps surface cooler and heater be the refrigeration end liquid-gas heat exchanger of same heat pump and heat pump heat end liquid-gas heat exchanger.By this structure, can realize the recycling of heat energy, reduce the energy consumption in the VOCs treatment.
In order to facilitate the discharging of steam, the dehumidifier bottom is provided with draining and controls outlet; Dehumidifier is constituted by evaporimeter and the condenser of refrigeration system.
Preferred embodiment one:
As shown in Figure 1, the VOCs treatment device comprises by pipeline and is communicated with successively hot-air drier 6, surface cooler 2, absorber 3, dehumidifier 4 and the heater 5 that forms closed-loop path; Wherein, surface cooler 2 and heater 5 are evaporimeter and the condenser of same heat pump 1.Dehumidifier is constituted by evaporimeter and the condenser of refrigeration system, and the dehumidifier bottom is provided with draining and controls outlet.
In figure, arrow is depicted as the flow route of PROCESS FOR TREATMENT gas.The pending product that is brushed with printing ink is put into to hot-air drier, use hot blast to carry out drying to this pending product and process.Therefore hot blast has been rich in organic matter, forms organic exhaust gas.By blower fan, order about organic exhaust gas and arrive surface cooler by pipeline, surface cooler is to the processing of lowering the temperature of pending organic exhaust gas, and then organic exhaust gas enters absorber.Active carbon is housed in absorber, and the organic exhaust gas after cooling passes active carbon and carries out adsorption treatment, after adsorption treatment, becomes clean gas.Because active carbon desorption is attached with large quantity of moisture, therefore resulting clean gas also contains moisture, can not directly recycle.Moist clean gas enters dehumidifier, and the dehumidifier with condensation and air heat function of exchange is to the processing that dehumidifies, rises again of this gas, and the gas after processing enters heater.After the heating of heater, form hot gas, reached the desired standard of hot-air drying technology, get back in hot-air drier and continue dry pending product.
The surface temperature of surface cooler 2, between 7-12 ℃, can will be reduced between 20-35 ℃ through its surperficial organic exhaust gas temperature.After organic exhaust gas passed microporous materials, the temperature of absorber was down to approximately 40 ℃ by the about high temperature of 100 ℃.
The evaporimeter by refrigeration system and condenser are to realize constant temperature dehumidification continuously to allow air, and the air temperature variations before and after dehumidifying is less, will greatly reduce the energy that the follow-up intensification of cold air after dehumidification by condensation consumes.Because its temperature of air after dehumidifying keeps and dehumidifying front the same (20-30 ℃) substantially, than being easier to rise to higher temperature, dry required to meet while flowing through afterwards air heater 5.
Because surface cooler 2 and heater 5 are evaporimeter and the condenser of same heat pump 1, and the evaporimeter present position is the zone of high temperature organic gas, its temperature is generally between 40-60 ℃, evaporimeter can make the heating energy efficiency ratio of heat pump greatly improve under sufficient thermal source environment, the condenser that makes heat pump 1 significantly promotes the heating efficiency of the rear air that dehumidifies, absorber 3 is used in conjunction with the heat pump 1 with high-effect heating performance, has solved the high energy consumption problem that original adsorption technology perplexs.
In this preferred embodiment, each parts of VOCs treatment device are communicated with successively and form closed loop by pipeline, have effectively absorbed organic matter and in environment, have not discharged gas not up to standard.
Preferred embodiment two:
As shown in Figure 2, the VOCs treatment device comprises by pipeline and is communicated with successively hot-air drier 6, surface cooler 2, absorber 3, dehumidifier 4, air storage chamber 7 and the heater 5 that forms closed-loop path.The air intake vent of air storage chamber 7 connects the air outlet of dehumidifier 4, and the air outlet of air storage chamber 7 connects the air intake vent of heater 5, and the discharge pipe of hot-air drier 6 is connected to the return air inlet of air storage chamber 7.Surface cooler 2 and heater 5 are evaporimeter and the condenser of same heat pump 1; Dehumidifier 4 bottoms are provided with draining and control outlet; Dehumidifier 4 is constituted by evaporimeter and the condenser of refrigeration system.
In figure, arrow is depicted as the flow route of PROCESS FOR TREATMENT gas.
The flow process of the first working method: the pending product that will attach organic pollution sources is put into hot-air drier, uses hot blast to carry out drying to this pending product and processes.Therefore hot blast has been rich in organic matter, forms pending organic exhaust gas.
When from contained organic concentration hot-air drier pending organic exhaust gas out lower than when setting value, if it is poor directly to administer adsorption effect, and improved cost.So disconnect surface cooler 2, absorber 3 and dehumidifier 4 this moment, make gas return hot-air drier 6 through air storage chamber 7 and heater 5, by twice or repeatedly closed cycle, increase organic concentration in gas.In gas, the height of organic concentration does not affect the drying processing for the treatment for the treatment of product.
After contained organic concentration in gas is more than or equal to setting value, by blower fan, orders about organic exhaust gas and arrive surface cooler by pipeline, surface cooler is to the processing of lowering the temperature of pending organic exhaust gas, and then organic exhaust gas enters absorber.Active carbon is housed in absorber, and the organic exhaust gas after cooling passes active carbon and carries out adsorption treatment, after adsorption treatment, becomes clean gas.Because active carbon desorption is attached with large quantity of moisture, therefore resulting clean gas also contains moisture, can not directly recycle.Moist clean gas enters dehumidifier, and the dehumidifier with condensation and air heat function of exchange carries out dehumidification by condensation the front temperature of the extremely approaching dehumidifying of backheat to this gas, and the gas after processing passes air storage chamber 7 and enters heater.After the heating of heater, form hot gas, reached the desired standard of hot-air drying technology, get back in hot-air drier and continue dry pending product.
The flow process of the second working method: the temperature of gas drying effect high, that treat treatment product when air quantity is large is better in hot-air drier 6, but the excessive improvement assembly scale that requires surface cooler 2, absorber 3 and dehumidifier 4 to form of the air quantity of processing is large, investment is high, operation cost is high.
So will by pipeline, send into surface cooler from the branch a large amount of gases of hot-air drier 6 outputs, carry out the governance flowchart identical with the first working method, that is, part purifies; Another part gas directly enters air storage chamber 7 and mixes mutually with the clean gas of sending into from dehumidifier 4, and mixed gas is got back to hot-air drier 6 after heater 5, recycle.
In this preferred embodiment, entering absorber high temperature organic exhaust gas before adopts the evaporimeter of heat pump all greatly to improve than the cooling-down effect of traditional cooling tower and energy-saving effect its cooling.In device, each parts are connected to become closed-loop path by pipeline, have realized well mixing the hot blast recycling after VOCs treatment, and regulation effect is good, and energy consumption is low.Air storage chamber the scheme that makes waste gas pollution control and treatment have plurality of optional to select is set, can select suitable scheme according to organic concentration in air quantity and gas, when improving drying effect, reduced to administer assembly scale, reduced investment, reduced operation cost.
Preferred embodiment three:
As shown in Figure 3, the VOCs treatment device absorbing unit, dehumidifier 4, heater 5, the second surface cooler 22 and the air-valve (not shown) that comprise the hot-air drier 6 that connects successively by pipeline, surface cooler 2, formed by the first absorber 31 and the second absorber 32.Dehumidifier 4 is constituted by evaporimeter and the condenser of refrigeration system, and the dehumidifier bottom is provided with draining and controls outlet.
By air-valve, switch the duty of absorber, namely when the first absorber 31 was in the duty of absorption, the second absorber 32 and the second surface cooler 22 formed the desorption heat regenerative system; When the second absorber 32 was in the duty of absorption, the first absorber 31 and the second surface cooler 22 formed the desorption heat regenerative system.In the desorption heat regenerative system, the desorption gas such as water vapour enter absorber and will after the organic matter desorption, after the second surface cooler 22, arrive condenser.
Using method: in figure, monolateral arrow is depicted as the flow route of PROCESS FOR TREATMENT gas, and bilateral arrow is depicted as the flow route of water vapour to microporous materials desorption in absorber.By blower fan, order about, the high temperature organic exhaust gas in hot-air drier 6 is by the pipeline surface cooler 2 of flowing through.The surface temperature of surface cooler 2, between 7-12 ℃, can be reduced to this organic exhaust gas temperature between 20-35 ℃.This organic exhaust gas enters the first absorber 31 and passes active carbon wherein.Organic exhaust gas passes and makes absorber be down to approximately 40 ℃ by the about high temperature of 100 ℃.
Water vapor desorption is attached causes wherein having large quantity of moisture because the active carbon in the first absorber 31 adopts before, so the gas that passes active carbon, also with large quantity of moisture, need to carry out dehumidifying and cooling.The evaporimeter by refrigeration system and condenser are to realize constant temperature dehumidification continuously to allow this gas, and the air temperature variations before and after dehumidifying is less, will greatly reduce the energy that the follow-up intensification of cold air after dehumidification by condensation consumes.Because its temperature of air after dehumidifying keeps and dehumidifying front the same (20-30 ℃) substantially, than being easier to rise to higher temperature, dry required to meet while flowing through afterwards air primary heater 5.
Simultaneously, high-temperature water vapor (also can be high temperature nitrogen) is passed in the second absorber 32, and is attached to active carbon desorption wherein, after the organic pollution in the cleaning active carbon, makes active carbon reuse.Then high-temperature water vapor when flowing through the second surface cooler 22 by thermal energy transfer to system, realize the recycling of heat energy.
Two absorbers are arranged in this preferred embodiment, and the scrubbing of the organic exhaust gas that hockets and the desorption of active carbon, take full advantage of heat energy, reclaim heat energy.
Claims (8)
1. a VOCs treatment device, is characterized in that, described device comprises hot-air drier (6), surface cooler (2), absorbing unit, Dehumidifying element and the heater (5) that forms closed-loop path by pipeline communication; Surface cooler (2) is connected to the air outlet of hot-air drier (6), and heater (5) is connected to the return air inlet of hot-air drier (6); Wherein,
Hot-air drier (6), for processing obtain organic exhaust gas and described organic exhaust gas is delivered to surface cooler and access and administers after clean gas recycle;
Surface cooler (2), for processing that pending waste gas is lowered the temperature;
Absorbing unit, carry out adsorption treatment be used to the gas after using microporous materials to cooling;
Dehumidifying component, have condensation and air heat function of exchange, for the gas processing that dehumidifies, rises again to after absorption;
Heater (5), for the gas-heated to after dehumidifying, rising again.
2. VOCs treatment device according to claim 1, is characterized in that, described surface cooler (2) and heater (5) are evaporimeter and the condenser of same heat pump.
3. VOCs treatment device according to claim 1, is characterized in that, described surface cooler (2) and heater (5) heat end liquid-gas heat exchanger for the refrigeration end liquid of same heat pump-gas heat exchanger and heat pump.
4. VOCs treatment device according to claim 1, is characterized in that, described Dehumidifying element is dehumidifier (4).
5. VOCs treatment device according to claim 4, is characterized in that, described dehumidifier (4) bottom is provided with draining and controls outlet.
6. VOCs treatment device according to claim 1, is characterized in that, described Dehumidifying element comprises dehumidifier (4) and the air storage chamber (7) of serial connection; The air intake vent of described air storage chamber (7) connects the air outlet of dehumidifier (4), and the air outlet of described air storage chamber (7) connects the air intake vent of heater (5), and the discharge pipe of described hot-air drier (6) is connected to the return air inlet of described air storage chamber (7).
7. according to claim 4,5 or 6 described VOCs treatment devices, is characterized in that, dehumidifier (4) is constituted by evaporimeter and the condenser of refrigeration system.
8. VOCs treatment device according to claim 1, is characterized in that, the absorbing unit of described device comprises at least two absorbers that are set up in parallel between surface cooler (2) and Dehumidifying element, also comprises the second surface cooler (22) and air-valve; The outlet of parsing discharge tube, the other end that described the second surface cooler (22) one ends connect described absorbing unit are connected to condenser; Each absorber adsorbs air-valve in turn or the desorption drying process for switching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203221952U CN203291683U (en) | 2013-06-05 | 2013-06-05 | Organic waste gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203221952U CN203291683U (en) | 2013-06-05 | 2013-06-05 | Organic waste gas treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203291683U true CN203291683U (en) | 2013-11-20 |
Family
ID=49567724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203221952U Withdrawn - After Issue CN203291683U (en) | 2013-06-05 | 2013-06-05 | Organic waste gas treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203291683U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272454A (en) * | 2013-06-05 | 2013-09-04 | 中节能天辰(北京)环保科技有限公司 | Organic exhaust gas treatment method and apparatus |
| CN105928259A (en) * | 2016-04-21 | 2016-09-07 | 武汉旭日华科技发展有限公司 | Treating system and method for organic waste gas in coating industry |
-
2013
- 2013-06-05 CN CN2013203221952U patent/CN203291683U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272454A (en) * | 2013-06-05 | 2013-09-04 | 中节能天辰(北京)环保科技有限公司 | Organic exhaust gas treatment method and apparatus |
| CN103272454B (en) * | 2013-06-05 | 2016-07-20 | 中节能天辰(北京)环保科技有限公司 | VOCs treatment method and device |
| CN105928259A (en) * | 2016-04-21 | 2016-09-07 | 武汉旭日华科技发展有限公司 | Treating system and method for organic waste gas in coating industry |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101912714B (en) | Large-wind-volume low-concentration organic exhaust gas two-step recycling device and method | |
| CN203540289U (en) | Treating and recovering device of organic waste gas with low concentration and large air volume | |
| CN108939889B (en) | Solution deep dehumidification flue gas treatment system | |
| CN103463932B (en) | Method and device for treating and recycling organic exhaust gas with low concentration and large air volume | |
| JP7264542B2 (en) | Parallel piping type gas adsorption concentrator | |
| CN102489113B (en) | Method for recovering organic solvent from organic waste gas | |
| CN103272454A (en) | Organic exhaust gas treatment method and apparatus | |
| CN204177172U (en) | A kind of suction-type lithium bromide dewatering drying device | |
| CN104307310A (en) | Gas treatment system and method in photosensory membrane printing | |
| CN102809276A (en) | Energy recovery method and device used for drying system | |
| CN203798110U (en) | Rotating-wheel type drying device for battery cells and pole pieces of lithium battery | |
| CN203291683U (en) | Organic waste gas treatment device | |
| CN105805869B (en) | The back-heating type solid desiccant dehumidification air-conditioning system and operation method of Driven by Solar Energy | |
| CN109114840B (en) | Absorption heat pump treatment equipment | |
| CN107062879B (en) | Thickening and energy-saving hot air drying system | |
| CN203291685U (en) | Organic waste gas heat recycling device | |
| CN204710061U (en) | A kind of energy-saving containing volatile organic matter industrial waste gas environment protection treating retracting device | |
| CN114791134B (en) | Multidirectional energy-saving double-rotating-wheel dehumidifier capable of recovering sensible heat and dehumidification method | |
| CN203489633U (en) | Solar energy auxiliary heat pump drying system | |
| CN206755840U (en) | A kind of hot air drying system of enrichment, energy-conservation | |
| CN205084582U (en) | Novel volatile organic compounds environmental protection is administered and is retrieved device | |
| CN203291684U (en) | Device and system for recycling mixed hot air subjected to organic waste gas treatment | |
| CN204522681U (en) | A kind of containing volatile organic matter industrial waste gas environment protection treating retracting device | |
| CN204555115U (en) | A kind of Novel hot recovery type rotary dehumidifier | |
| CN203291681U (en) | Condensation heat energy recycling and reusing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131120 Effective date of abandoning: 20160720 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |