CN207445909U - A kind of device of super solvent recycling treatment high concentration VOCs exhaust gas - Google Patents
A kind of device of super solvent recycling treatment high concentration VOCs exhaust gas Download PDFInfo
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- CN207445909U CN207445909U CN201721089876.3U CN201721089876U CN207445909U CN 207445909 U CN207445909 U CN 207445909U CN 201721089876 U CN201721089876 U CN 201721089876U CN 207445909 U CN207445909 U CN 207445909U
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- exhaust gas
- heat exchanger
- high concentration
- tower
- recovery
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Abstract
The utility model discloses a kind of device of super solvent recycling treatment high concentration VOCs exhaust gas, described device includes absorption tower and recovery tower, and absorption tower is handled exhaust gas using super solvent and water.The beneficial effects of the utility model are that super solvent can be recycled, and small, service life 5 10 years is lost；Relatively low to tail gas pre-processing requirements, process safety coefficient is higher；The energy consumption for the techniques such as the energy consumption of solvent recovery tower will be far below catalysis burning, heat-accumulation combustion, activated carbon are desorbed, the solvent and water used in processing procedure can be recycled, and thermostabilization, nontoxic, non-corrosive；The VOCs solution of recycling can realize resource reutilization by means such as filtering, rectifying.
Description
Technical field
The utility model belongs to waste gas treatment equipment technical field more particularly to a kind of super solvent recycling treatment is highly concentrated
Spend the device of VOCs exhaust gas
Background technology
The national environmental protection regulation of newest promulgation has ozone concentration in air the stringent limitation of comparison.It is the study found that industrial
The organic exhaust gas (VOCs) discharged in production process is the increased arch-criminal of ozone concentration；According to incompletely statistics, Chinese industrial
Discharge the organic solvent more than 30,000,000 tons in production process to air every year.Environment specialist detects chemistry in haze to be had
Machine substance, organic solvent are the important factors for generating haze.In recent years, stringent policy limitation organic waste is formulated in country and place
The discharge of gas.This year, country will put into effect organic solvent emission fee system, and per kilogram is charged 8 yuan, determined in fee system
Afterwards, enterprise will necessarily strengthen VOCs treatment.So.Strengthen industrial organic exhaust gas improvement and have become inexorable trend.
Industrial volatile organic waste gas widely exists in coating and Printing ink producing, plastic products manufacture, electronics industry, vapour
Vehicle manufactures and repair, printing and packages printing, Furniture manufacture, external coating, dining room restaurant, petroleum refining and petrochemistry, doctor
The industries such as medicine manufacture, rubber manufacture contain the common viscosity such as substantial amounts of esters, alcohols, ethers and stench in such exhaust gas
Pungent smell.At present for volatile organic waste gas use improvement method also there are many, it is common mainly to have：Absorption
Method, heat-storage catalytic combustion method, combustion method, photocatalytic oxidation etc..These methods in practical applications there are it is certain the defects of.Such as
Heat-storage catalytic burns：1. catalyst needs replacing, costly；2. catalytic effect has attenuation；For another example activated carbon, silica gel, molecule
Sieve adsorption and desorption：1. regeneration needs consumptive use high steam or nitrogen to protect heating；2. for high boiling organic matter regeneration
It is more difficult；3. the solvent regenerated stills need rectified purified；4. using effect decays at any time, it is necessary to regularly replace；⑤
The improvement of low-concentration organic exhaust gas in being suitble to；
Generally speaking：The shortcomings that above method, is mainly shown as 1) poor to high concentration VOCs exhaust-gas treatment effects, it is difficult to real
Existing qualified discharge；2) actual moving process need to be additionally provided substantial amounts of energy, cause energy consumption higher, and row is costly；3) it is disposable
It invests larger；4) there are secondary pollution, solid waste or sewage to generate；5) safety coefficient is low, there is the possibility caught fire.
Therefore, a kind of operating mode for high concentration VOCs discharges to be developed, and requires high treating effect, operating cost is low,
Safety, service life is long, non-secondary pollution, the processing unit of recycling VOCs exhaust gas, and enterprise is helped to realize that qualified discharge seems
It is particularly necessary.
The content of the invention
The purpose of this utility model is to provide a kind of device of super solvent recycling treatment high concentration VOCs exhaust gas, with solution
The defects of operating cost certainly in the prior art is high, discharge is not up to standard, energy waste.
To realize the purpose of this utility model, the utility model provides a kind of super solvent recycling treatment high concentration
The device of VOCs exhaust gas, described device include absorption tower 1 and recovery tower 2, and the absorption tower 1 sets three layers of filler, from top to bottom
It is followed successively by the first filler 3, the second filler 4, the 3rd filler 5, high concentration VOCs exhaust gas is from the exhaust gas inlet port of the lower part on absorption tower
25 air inlets, purified exhaust gas is from 7 outlet of purified gas outlet of the upper end on absorption tower 1, and super solvent with absorption tower 1 by connecting
The solvent ascending pipe 8 connect enters the second filler 4, and the first recovery pipe 26 connected from the lower end on absorption tower 1 connects with recovery tower 2
It is logical；The water ascending pipe 10 that water is connected from 1 top of absorption tower enters absorption tower 1, and passes through the second recovery pipe 9 and recovery tower
2 connections.
Wherein, 26 and second recovery pipe 9 of the first recovery pipe is promoted successively with the second oil water separator 16, second
The 15, the 3rd heat exchanger 17 of pump, recovery tower 2 connect, and the 3rd heat exchanger 17 is heater.
Wherein, by 2 separated super solvent of recovery tower from 2 lower end of recovery tower the 5th heat exchanger is sequentially connected by pipeline
19th, the 3rd heat exchanger 17, the second heat exchanger 14, the first oil water separator 13, the first elevator pump 12 are connected with solvent ascending pipe, institute
State the 5th heat exchanger 19, the second heat exchanger 14 is cooler.
Wherein, the first oil water separator 13 is connected with supplementing solvent pipeline 11.
Wherein, the 4th heat exchanger 18, are sequentially connected by pipeline from 2 upper end of recovery tower by 2 separated water of recovery tower
Three oil water separators 20, the 4th oil water separator 23, the 3rd elevator pump 24 are connected with water ascending pipe 10, the 4th heat exchanger
18 be cooler.
Wherein, the 4th oil water separator 23 is connected with supplement water lines 22.
Wherein, by 2 separated VOCs of recovery tower from 2 upper end of recovery tower by pipeline be sequentially connected the 4th heat exchanger 18,
3rd oil water separator 20, and pass through the 3rd oil water separator 20 and discharge, the 4th heat exchanger 18 is cooler.
Wherein, First Heat Exchanger 6 is provided on the absorption tower 1, the First Heat Exchanger 6 is cooler.
Wherein, the recovery tower 2 sets two layers of filler.
The beneficial effects of the utility model are that super solvent can be recycled, and small, service life 5-10 is lost；To tail
Gas pre-processing requirements are relatively low, and process safety coefficient is higher；The energy consumption of solvent recovery tower will be far below catalysis burning, heat-accumulation combustion,
The energy consumption of the techniques such as activated carbon desorption, the solvent and water used in processing procedure can be recycled, and thermostabilization, nontoxic, nothing
Corrosivity；The VOCs solution of recycling can realize resource reutilization by means such as filtering, rectifying.
Description of the drawings
Fig. 1 show the structure diagram of the application；
In figure, 1- absorption towers, 2- recovery towers, the first fillers of 3-, the second fillers of 4-, the 3rd fillers of 5-, 6- First Heat Exchangers,
7- purified gas outlets, 8- solvent ascending pipes, the second recovery pipes of 9-, 10- water ascending pipes, 11- supplementing solvent pipelines, 12-
One elevator pump, the first oil water separators of 13-, the second heat exchangers of 14-, the second elevator pumps of 15-, the second oil water separators of 16-, 17-
3rd heat exchanger, the 4th heat exchangers of 18-, the 5th heat exchangers of 19-, the 3rd oil water separators of 20-, the discharge of 21- volatile organic matters
Pipeline, 22- supplement water lines, the 4th oil water separators of 23-, the 3rd elevator pumps of 24-, 25- exhaust gas inlet ports, 26- first are recycled
Pipeline.
Specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that this place
The specific embodiment of description is only used to explain the utility model, is not used to limit the utility model.
It should be noted that " connection " described herein and the word for expressing " connection ", such as " being connected ",
" connected " etc. was both directly connected to including a certain component and another component, and also passed through other component and another portion including a certain component
Part is connected.
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.
As shown in Figure 1, a kind of device of super solvent recycling treatment high concentration VOCs exhaust gas of the application, described device bag
Including absorption tower 1 and recovery tower 2, the absorption tower 1 sets three layers of filler, is followed successively by the first filler 3 from top to bottom, the second filler 4,
3rd filler 5, high concentration VOCs exhaust gas is from 25 air inlet of exhaust gas inlet port of the lower part on absorption tower, and purified exhaust gas is from absorption tower
7 outlet of purified gas outlet of 1 upper end, super solvent enter the second filler by the solvent ascending pipe 8 being connected with absorption tower 1
4, the first recovery pipe 26 connected from the lower end on absorption tower 1 is connected with recovery tower 2；Water is connected from 1 top of absorption tower
Water ascending pipe 10 enters absorption tower 1, and is connected by the second recovery pipe 9 with recovery tower 2.
It should be noted that the utility model discloses a kind of super solvent recycling treatment high concentration VOCs exhaust gas
Device, structure include absorption tower 1, recovery tower 2, super solvent, filler, heat exchanger, oil water separator, cooler, wind turbine and
The Accessory Members such as water pump.High concentration VOCs exhaust gas is arranged at the air inlet of the lower end on absorption tower 1, and purified exhaust gas is from absorption tower 1
Upper end outlet, super solvent enters from the filler 2 on absorption tower 1, recycled from the lower end on absorption tower 1.
Recovery tower 2 sets two layers of filler, so that solvent, VOCs and water are separated after the heating of the 3rd heat exchanger 17, passes through
After crossing the cooling of the 4th heat exchanger 18 so that water and VOCs separation, after the cooling of the 5th heat exchanger 19, recycling is hot, and recycling is molten
Agent.Whole process solvent and water can be recycled, almost lossless, and the water and solvent that minority is lost in need regular replenishment.
The main feature of the utility model is shown as：Super solvent and water can be recycled, and small, service life 5- is lost
10 years.The energy consumption of the solvent absorption recovery tower 2 will be far below the techniques such as catalysis burning, heat-accumulation combustion, activated carbon desorption
Energy consumption.The VOCs of recycling can realize resource reutilization by means such as filtering, rectifying.It is relatively low to tail gas pre-processing requirements, work
Skill safety coefficient is higher.TVOC concentration 200-300ppmv in exhaust gas：Absorptivity 99.5%, economic benefit is general；In exhaust gas
TVOC concentration 500-2000 ppmv：Absorptivity 99%, better economic benefit；TVOC concentration 2000-5000ppmv in exhaust gas：It inhales
Yield 98.5%, economic benefit is fine.
It should be noted that the mixture of 26 recycling design of the first recovery pipe and water, the second recovery pipe 9 is mainly returned
Receive water.
Preferably, 26 and second recovery pipe 9 of the first recovery pipe carries successively with the second oil water separator 16, second
The 15, the 3rd heat exchanger 17 of liter pump, recovery tower 2 connect, and the 3rd heat exchanger 17 is heater.
The partially recycled structure of super solvent is as follows in the application：By 2 separated super solvent of recovery tower under recovery tower 2
End is sequentially connected the 5th heat exchanger 19, the 3rd heat exchanger 17, the second heat exchanger 14, the first oil water separator 13, the by pipeline
One elevator pump 12 is connected with solvent ascending pipe, and the 5th heat exchanger 19, the second heat exchanger 14 are cooler.First water-oil separating
Device 13 is connected with supplementing solvent pipeline 11.
The partially recycled structure of the water of the application is as follows：Pass through pipeline from 2 upper end of recovery tower by 2 separated water of recovery tower
It is sequentially connected the 4th heat exchanger 18, the 3rd oil water separator 20, the 4th oil water separator 23, the 3rd elevator pump 24 and water ascending pipe
10 connections, the 4th heat exchanger 18 are cooler.4th oil water separator 23 is connected with supplement water lines 22.
The partially recycled structure of the VOCs of the application is as follows：Pass through by 2 separated VOCs of recovery tower from 2 upper end of recovery tower
Pipeline is sequentially connected the 4th heat exchanger 18, the 3rd oil water separator 20, and passes through the 3rd oil water separator 20 and discharge, and the described 4th
Heat exchanger 18 is cooler.
Preferably, First Heat Exchanger 6 is provided on the absorption tower 1, the First Heat Exchanger 6 is cooler, is passed through
First Heat Exchanger 6 adjusts the temperature of mixture.
Preferably, the recovery tower 2 sets two layers of filler.
The above is only the preferred embodiment of the utility model, it is noted that for the general of the art
For logical technical staff, on the premise of the utility model principle is not departed from, several improvements and modifications can also be made, these change
The scope of protection of the utility model is also should be regarded as into retouching.
Claims (9)
1. a kind of device of super solvent recycling treatment high concentration VOCs exhaust gas, which is characterized in that described device includes absorbing
Tower (1) and recovery tower (2), the absorption tower (1) set three layers of filler, are followed successively by the first filler (3), the second filler from top to bottom
(4), the 3rd filler (5), high concentration VOCs exhaust gas is from exhaust gas inlet port (25) air inlet of the lower part on absorption tower, purified exhaust gas
Purified gas outlet (7) outlet from the upper end of absorption tower (1), super solvent are injected by the solvent being connected with absorption tower (1)
(8) are managed into the second filler (4), the first recovery pipe (26) connected from the lower end of absorption tower (1) is connected with recovery tower (2)；
The water ascending pipe (10) that water is connected from the absorption tower (1) top into absorption tower (1), and by the second recovery pipe (9) with
Recovery tower (2) connects.
2. the device of super solvent recycling treatment high concentration VOCs exhaust gas according to claim 1, which is characterized in that institute
State the first recovery pipe (26) and the second recovery pipe (9) successively with the second oil water separator (16), the second elevator pump (15),
Three heat exchangers (17), recovery tower (2) connection, the 3rd heat exchanger (17) are heater.
3. the device of super solvent recycling treatment high concentration VOCs exhaust gas according to claim 1 or 2, feature exist
In, by recovery tower (2) separated super solvent from recovery tower (2) lower end by pipeline be sequentially connected the 5th heat exchanger (19),
3rd heat exchanger (17), the second heat exchanger (14), the first oil water separator (13), the first elevator pump (12) and solvent ascending pipe connect
Logical, the 5th heat exchanger (19), the second heat exchanger (14) are cooler.
4. the device of super solvent recycling treatment high concentration VOCs exhaust gas according to claim 3, which is characterized in that the
One oil water separator (13) is connected with supplementing solvent pipeline (11).
5. the device of super solvent recycling treatment high concentration VOCs exhaust gas according to claim 1 or 2, feature exist
In, by recovery tower (2) separated water from recovery tower (2) upper end by pipeline be sequentially connected the 4th heat exchanger (18), the 3rd oil
Separator (20), the 4th oil water separator (23), the 3rd elevator pump (24) are connected with water ascending pipe (10), the 4th heat exchange
Device (18) is cooler.
6. the device of super solvent recycling treatment high concentration VOCs exhaust gas according to claim 5, which is characterized in that the
Four oil water separators (23) are connected with supplement water lines (22).
7. the device of super solvent recycling treatment high concentration VOCs exhaust gas according to claim 1 or 2, feature exist
In being sequentially connected the 4th heat exchanger (18), the 3rd by pipeline from recovery tower (2) upper end by recovery tower (2) separated VOCs
Oil water separator (20), and pass through the discharge of the 3rd oil water separator (20), the 4th heat exchanger (18) is cooler.
8. the device of super solvent recycling treatment high concentration VOCs exhaust gas according to claim 1, which is characterized in that institute
It states and First Heat Exchanger (6) is provided on absorption tower (1), the First Heat Exchanger (6) is cooler.
9. the device of super solvent recycling treatment high concentration VOCs exhaust gas according to claim 1, which is characterized in that institute
It states recovery tower (2) and two layers of filler is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721089876.3U CN207445909U (en) | 2017-08-29 | 2017-08-29 | A kind of device of super solvent recycling treatment high concentration VOCs exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721089876.3U CN207445909U (en) | 2017-08-29 | 2017-08-29 | A kind of device of super solvent recycling treatment high concentration VOCs exhaust gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207445909U true CN207445909U (en) | 2018-06-05 |
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ID=62248524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721089876.3U Expired - Fee Related CN207445909U (en) | 2017-08-29 | 2017-08-29 | A kind of device of super solvent recycling treatment high concentration VOCs exhaust gas |
Country Status (1)
| Country | Link |
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| CN (1) | CN207445909U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108854464A (en) * | 2018-07-09 | 2018-11-23 | 中物院成都科学技术发展中心 | A kind of absorbing liquid and its separation and recovery method and device for exhaust-gas treatment |
-
2017
- 2017-08-29 CN CN201721089876.3U patent/CN207445909U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108854464A (en) * | 2018-07-09 | 2018-11-23 | 中物院成都科学技术发展中心 | A kind of absorbing liquid and its separation and recovery method and device for exhaust-gas treatment |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180605 Termination date: 20210829 |
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| CF01 | Termination of patent right due to non-payment of annual fee |