CN103977670B - Device for recycling waste gas containing volatile organic compounds - Google Patents
Device for recycling waste gas containing volatile organic compounds Download PDFInfo
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- CN103977670B CN103977670B CN201410237733.7A CN201410237733A CN103977670B CN 103977670 B CN103977670 B CN 103977670B CN 201410237733 A CN201410237733 A CN 201410237733A CN 103977670 B CN103977670 B CN 103977670B
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- 239000002912 waste gas Substances 0.000 title claims abstract description 36
- 238000004064 recycling Methods 0.000 title claims abstract description 9
- 239000012855 volatile organic compound Substances 0.000 title abstract 4
- 238000001035 drying Methods 0.000 claims abstract description 74
- 238000001816 cooling Methods 0.000 claims abstract description 55
- 238000001179 sorption measurement Methods 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000011084 recovery Methods 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 230000000740 bleeding effect Effects 0.000 claims description 104
- 239000007789 gas Substances 0.000 claims description 44
- 238000003795 desorption Methods 0.000 claims description 38
- 239000003463 adsorbent Substances 0.000 claims description 32
- 239000006096 absorbing agent Substances 0.000 claims description 31
- 238000010521 absorption reaction Methods 0.000 claims description 19
- 239000002594 sorbent Substances 0.000 claims description 8
- 230000008676 import Effects 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000007791 dehumidification Methods 0.000 abstract 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000005416 organic matter Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 12
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 206010013786 Dry skin Diseases 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000338 in vitro Methods 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- -1 application Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000003694 hair properties Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
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- Drying Of Gases (AREA)
- Treating Waste Gases (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
The invention discloses a device for recycling waste gas containing volatile organic compounds. The device comprises one or more adsorbing devices, a circulating fan, a recycling condenser and/or a dehumidification condenser, a water vapor source and a control system, wherein a waste gas outlet is further connected with an air outlet of the recycling condenser or the dehumidification condenser through an air inlet valve C and the circulating fan; a water vapor outlet is connected with an air inlet of the dehumidification condenser through an air outlet valve C, and a liquid outlet of the dehumidification condenser is connected with a separation device. The device has the beneficial effects that by carrying out cooling and drying by virtue of an external-circulation cooling and drying manners, a phenomenon that secondary emission exceeds the standard is basically avoided in cooling and drying processes, the emission reaches the national emission standards, and secondary pollution is low or even avoided; the adsorption efficiency is high, and the recovery rate of volatile organic compounds (VOC) is high. The device can be applied to the production of novel equipment as well as the remolding of used equipment and is very convenient to use.
Description
Technical field
Field is utilized the invention belongs to waste gas recovery, is related to a kind of waste gas recovery containing VOC VOC
Using device.
Background technology
The industrial process that all organic matters are participated in, always inevitably gives off the waste gas containing organic matter.China is in stone
The industries such as change, chemical industry, rubber, plastic cement, application, coating, printing, pharmacy, agricultural chemicals, coating, paint at least consume 10,000,000 every year
Ton organic solvent, wherein millions of ton of organic solvent its production, storage, transportation loading and unloading, the link such as use in be changed into gas
Body has simultaneously been discharged into air, not only causes waste, and pollute environment.In order to recycle these volatile organic matters
VOC, is usually adsorbed the waste gas containing VOC by adsorbent bed with micropore to it, is recycled after adsorption saturation
Water vapour is desorbed to adsorbent bed with micropore, has just been desorbed finish adsorbent bed not only hot but also wet, is unfavorable for inhaling
The attached dose of bed absorption work next to be carried out, so having to adsorbent bed carry out dropping gently dried ability to damp and hot
It is set to recover the adsorption capacity to organic matter again, this process is exactly cooling and drying process.The volatile organic matter being desorbed out
VOC and water vapour are condensed into condenser together, reclaim organic matter.The discharge of the gas of generation is during cooling and drying
Secondary air is discharged.Adsorption and desorption that the process of adsorption and desorption and cooling and drying is set according to control system by control system and
Cooling and drying time control.Mostly using activated carbon granule, NACF, zeolite, molecular sieve etc. on adsorbent general industry
As adsorbent, wherein having exceeded 98% as the ratio of adsorbent using activated carbon granule and NACF.
The cooling and drying process of existing VOC recycle devices is dropped as dry gas using dry air
Temperature is dry, and VOC concentration contained in the secondary exhaust of cooling and drying process and the temperature and humidity of the secondary exhaust are directly proportional；
The exhaust initial temperature of cooling and drying process is up to 100 DEG C, and VOC concentration contained in exhaust is very high, with cooling and drying mistake
The carrying out of journey, adsorbent bed temperature is gradually reduced, and VOC concentration contained in exhaust is also gradually reduced, such as Fig. 3 and Fig. 4 institutes
Show；Existing VOC recycle devices in whole cooling and drying process all the time all in exhaust, the initial stage temperature of cooling and drying process compared with
Gao Shi, contains substantial amounts of VOC in the waste gas of its discharge, secondary pollution is serious, does not reach discharging standards requirement.And it is existing
The dry gas of the cooling and drying process of VOC recycle devices are to flow from bottom to top, the side flowed with processed waste gas
To identical, with the steam flow of adsorbent desorption process conversely, as shown in figure 1, to the adsorbent bed of flush system, waste gas is being inhaled
It is that the VOC for adsorbing below is more in attached process, the VOC for adsorbing above is few, as shown in Figure 5 and Figure 6, the water vapour of desorption process is
Flow from the top down, so, it is adsorbent bed in VOC residual gradients be small residual quantity above, the amount for remaining below is big, whole
Body VOC residual quantities are big, as shown in fig. 7, and also contain substantial amounts of VOC in the gas of humidity, according to the flowing of present dry gas
Direction, a large amount of VOC gone out by purging below adsorbent rise with dry gas, and because bed temperature is very high, it is remained again
VOC few adsorbent is adsorbed again at the middle and upper levels, the VOC of residual it is adsorbent bed it is interior rearranged, as shown in Fig. 2
, by secondary emission, as shown in Figure 3 and Figure 4, the initial stage temperature of cooling and drying process is higher for the VOC that some is not adsorbed
When, substantial amounts of VOC is contained in the waste gas of its discharge, secondary pollution is serious, does not reach discharging standards requirement.And it is existing useless
Flash Gas Compression Skid System, the VOC amounts of adsorbent bed interior residual are big after the completion of cooling and drying, as shown in Fig. 2 reducing adsorbent again
The ability of absorption.If annular sorbent bed, in adsorption process, the waste gas containing VOC is from the outer of annular sorbent bed
Layer enters, and internal layer goes out, and the VOC of outer layer absorption is more, and the VOC of subsurface adsorption is few, and as shown in Figure 8, Figure 9, in desorption process, water vapour is
That internal layer VOC residual quantities are small after desorption from the outside laminar flow of internal layer, outer layer VOC residual quantities are big, the flow direction of dry gas with
The direction of the waste gas flowing of adsorbed treatment is identical, with the steam flow of adsorbent desorption process conversely, result also same flush system
It is adsorbent bed the same.It is poor that the above results in adsorbent bed adsorption effect again, and it is low that VOC reclaims interest rate, secondary emission
Gas in VOC content it is big the shortcomings of.
The content of the invention
The purpose of the present invention is exactly to solve the above-mentioned problems in the prior art, there is provided one kind contains volatile organic
The device for recycling exhaust gas of compound, the device has fundamentally prevented the exceeded phenomenon of secondary emission during cooling and drying
Occur, the overall process of its operation is attained by discharging standards requirement, and secondary pollution is small, and VOC adsorption efficiencies are high, the rate of recovery
It is high.
To achieve the above object, technical solution of the invention is：A kind of waste gas containing VOC
Recycle device, it includes one or more absorber, circulating fan, reclaims condenser or reclaims condenser and except wet condensation
Device, source of water vapor, control system；Middle part is provided with that flush system is adsorbent bed or annular sorbent bed in absorber, under it
End is provided with exhaust gas inlet and steam outlet, and upper end is provided with waste gas outlet and water vapour import；Exhaust gas inlet is connected by intake valve A
Exhaust gas source is connect, waste gas outlet connects exhaust outlet by air bleeding valve A；Source of water vapor connects the water vapour of absorber by intake valve B
Import, the steam outlet of absorber connects the air inlet for reclaiming condenser by air outlet valve B, and the liquid outlet for reclaiming condenser connects
Connect separator；Waste gas outlet is also connected by intake valve C and circulating fan and reclaims condenser or the gas outlet except wet condenser；
Steam outlet connects the air inlet except wet condenser by air outlet valve C, except the liquid outlet of wet condenser connects separator；Inhale
When attached, the adsorption time control intake valve A and air bleeding valve A that control system sets according to control system is opened, intake valve B, outlet
Valve B and intake valve C is closed or intake valve B, air outlet valve B, intake valve C and air outlet valve C are closed；Control system is according to control during desorption
The desorption time control intake valve B and air outlet valve B of default is opened, and intake valve A, air bleeding valve A and intake valve C are closed or air inlet
Valve A, air bleeding valve A, intake valve C and air outlet valve C are closed；During cooling and drying, control system according to control system set when drying
Between control intake valve C and air outlet valve B to open, intake valve A, air bleeding valve A and intake valve B is closed or intake valve C and air outlet valve C is opened
Open, intake valve A, air bleeding valve A, intake valve B and air outlet valve B are closed.
Present invention additionally comprises air blower, described air blower after connecting pipe connection intake valve D by being connected to intake valve C's
Inlet port, the steam outlet of absorber also connects exhaust outlet by air bleeding valve B；During absorption, control system is according to control
The adsorption time control intake valve A and air bleeding valve A for setting that unites is opened, intake valve B, air outlet valve B, intake valve C, intake valve D and row
Air valve B is closed or intake valve B, air outlet valve B, intake valve C, intake valve D, air bleeding valve B and air outlet valve C are closed；During desorption, control system
Unite according to control system set desorption time control intake valve B and air outlet valve B open, intake valve A, air bleeding valve A, intake valve C,
Intake valve D and air bleeding valve B is closed or intake valve A, air bleeding valve A, intake valve C, intake valve D, air bleeding valve B and air outlet valve C are closed；Drop
Warm the early stage of drying, the drying time control intake valve C and air outlet valve B that control system sets according to control system is opened, intake valve
A, air bleeding valve A, intake valve B, intake valve D and air bleeding valve B are closed or intake valve C and air outlet valve C is opened, intake valve A, air bleeding valve A,
Intake valve B, air outlet valve B, intake valve D and air bleeding valve B are closed；In the cooling and drying later stage, control system sets according to control system
Time control intake valve D, intake valve C and air bleeding valve B open, intake valve A, air bleeding valve A, intake valve B and air outlet valve B close or
Intake valve A, air bleeding valve A, intake valve B, air outlet valve B and air outlet valve C are closed.
Present invention additionally comprises air blower, described air blower after connecting pipe connection intake valve E by being connected to absorber
Exhaust gas inlet；During absorption, the adsorption time control intake valve A and air bleeding valve A that control system sets according to control system is opened, and is entered
Air valve B, air outlet valve B, intake valve C and intake valve E are closed or intake valve B, air outlet valve B, intake valve C, intake valve E and air outlet valve C
Close；During desorption, the desorption time control intake valve B and air outlet valve B that control system sets according to control system is opened, intake valve
A, air bleeding valve A, intake valve C and intake valve E are closed or intake valve A, air bleeding valve A, intake valve C, intake valve E and air outlet valve C are closed；
Cooling and drying early stage, the drying time control intake valve C and air outlet valve B that control system sets according to control system is opened, air inlet
Valve A, air bleeding valve A, intake valve B and intake valve E are closed or intake valve C and air outlet valve C is opened, intake valve A, air bleeding valve A, intake valve
B, air outlet valve B and intake valve E are closed；In the time control air inlet that cooling and drying later stage, control system set according to control system
Valve E and air bleeding valve A is opened, and intake valve A, intake valve B, air outlet valve B and intake valve C are closed or intake valve A, intake valve B, air outlet valve
B, intake valve C and air outlet valve C are closed.
Present invention absorption and desorption process are same as the prior art, but extracorporal circulatory system drop is employed during cooling and drying
The dry mode of temperature, increased except wet condenser or directly borrows recovery condenser and do except wet condenser in the outer end of absorber
Use；In the presence of circulating fan, the moist high-temperature gas after desorption in absorber is drawn from the lower end of absorber and is entered
Reclaim condenser or except being lowered the temperature in wet condenser, make what is remained after the water vapour in the high-temperature gas of humidity and desorption to wave
The VOC condensation discharges of hair property organic matter, and then make the high-temperature gas cooling and drying of humidity, also just make tiling adsorbent bed or ring-type
It is adsorbent bed to have carried out cooling and drying, and the volatile organic matter VOC for remaining has been reclaimed, this not only reduces adsorbent bed
The residual quantity of interior VOC, as shown in Figure 10, and this process does not have the discharge of gas, so, using extracorporal circulatory system cooling and drying
Mode carry out cooling and drying during there is no the discharge of VOC pollutants.To special volatile organic matter VOC Standards
The content of discharge is lower, and the mode only with extracorporal circulatory system carries out cooling and drying and can not reach the purpose of thorough cooling and drying, can
Increase air blower, the air that air blower is blown into carries out Wind Volume purging in the cooling and drying later stage to bed, bed can be made to lower the temperature dry
Dry is more thorough, and as shown in figure 13, so that effect is more preferable when bed is adsorbed again, it is by extracorporal circulatory system drying and Wind Volume
After purging is dried, the residual quantity of VOC has also been reduced, as shown in figure 11；Added with the of the invention in cooling and drying process of air blower
Hot stage be not vented, simply gas is circulated by way of " extracorporal circulatory system cooling and drying ", when bed temperature reduction
Can just be vented afterwards, the volatile organic matter VOC that the gas of discharge is contained within is considerably less, and as shown in figure 12, and bed is desorbed
More thoroughly, the effect adsorbed again is good.In a word, the present invention has fundamentally prevented the secondary emission during cooling and drying
The generation of exceeded phenomenon, reaches discharging standards requirement, and secondary pollution is small, even without secondary pollution；Its adsorption efficiency is high,
The volatile organic matter VOC rate of recovery is high.The present invention can be used for the production of new equipment, it can also be used to the transformation of used equipment, use
It is very convenient.
Brief description of the drawings
Fig. 1 is the structural representation of adsorbent bed absorber of tiling in the prior art；
Fig. 2 is the adsorbent bed interior VOC residual quantity gradient curves that tiled after the completion of Fig. 1 device cooling and dryings；
Fig. 3 is VOC emission concentration versus time curve during Fig. 1 device cooling and dryings；
Fig. 4 is temperature versus time curve during Fig. 1 device cooling and dryings；
Fig. 5 is the adsorbent bed interior VOC adsorbance gradient curves that tiled after the completion of Fig. 1 devices are adsorbed；
Fig. 6 is VOC adsorbance versus time curves in Fig. 1 device adsorption processes；
Fig. 7 is the adsorbent bed interior VOC residual quantity gradient curves that tiled after the completion of Fig. 1 devices are desorbed；
Fig. 8 is the structural representation of the absorber of annular sorbent bed in the prior art；
Fig. 9 is the VOC residual quantity gradient curves in annular sorbent bed after the completion of Fig. 8 device cooling and dryings；
Figure 10 is that the adsorbent bed interior VOC residual quantities gradient of tiling after the completion of extracorporal circulatory system cooling and drying of the present invention is bent
Line；
Figure 11 is that preliminary in vitro circulation temperature lowering of the present invention is dried and the tiling adsorbent after the completion of the drying of later stage dry gas
VOC residual quantity gradient curves in bed；
Figure 12 be preliminary in vitro circulation temperature lowering of the present invention dry and later stage dry gas drying process in VOC emission concentration with
The change curve of time；
Figure 13 is that preliminary in vitro circulation temperature lowering of the present invention was dried with temperature in later stage dry gas drying process with the time
Change curve；
Figure 14 is the structural representation of the first embodiment of the invention；
Figure 15 is the structural representation of second embodiment of the invention；
Figure 16 is the structural representation of the third embodiment of the invention；
Figure 17 is the 4th kind of structural representation of embodiment of the invention；
Figure 18 is the 5th kind of structural representation of embodiment of the invention；
Figure 19 is the 6th kind of structural representation of embodiment of the invention；
Figure 20 is the 7th kind of structural representation of embodiment of the invention
Figure 21 is the 8th kind of structural representation of embodiment of the invention；
Figure 22 is the 9th kind of structural representation of embodiment of the invention.
Specific embodiment
The present invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1 as shown in figure 14, the present embodiment includes an absorber 4, circulating fan 10, reclaims condenser 7, water
Vapour source and control system.Middle part is provided with flush system adsorbent bed 3 in absorber 4（May also be annular sorbent bed）,
Its lower end is provided with exhaust gas inlet and steam outlet, and upper end is provided with waste gas outlet and water vapour import.Exhaust gas inlet passes through air inlet
Valve A 5 connects exhaust gas source, and waste gas outlet connects exhaust outlet by air bleeding valve A 1.Source of water vapor connects absorption by intake valve B 2
The water vapour import of device 4, the steam outlet of absorber 4 connects the air inlet for reclaiming condenser 7 by air outlet valve B 6, reclaims
The liquid outlet connection separator of condenser 7.Waste gas outlet is also connected by intake valve C 11 and circulating fan 10 and reclaims condensation
The gas outlet of device 7.During absorption, adsorption time control intake valve A 5 and air bleeding valve A 1 that control system sets according to control system
Open, intake valve B 2, air outlet valve B 6 and intake valve C 11 are closed.The desorption that control system sets according to control system during desorption
Time control intake valve B 2 and air outlet valve B 6 are opened, and intake valve A 5, air bleeding valve A 1 and intake valve C 11 are closed.Cooling and drying
When, the drying time control intake valve C 11 and air outlet valve B 6 that control system sets according to control system are opened, intake valve A 5,
Air bleeding valve A 1 and intake valve B 2 are closed.It is suitable for the waste gas recovery containing common VOC to utilize.
Embodiment 2 as shown in figure 15, with embodiment 1, simply it is also including air blower for the other structures of the present embodiment.Institute
The air blower stated is steamed by being connected to the inlet port of intake valve C 11, the water of absorber 4 after connecting pipe connection intake valve D 13
Vapor outlet also connects exhaust outlet by air bleeding valve B 12.During absorption, the adsorption time control that control system sets according to control system
Intake valve A 5 processed and air bleeding valve A 1 are opened, intake valve B 2, air outlet valve B 6, intake valve C 11, intake valve D 13 and air bleeding valve B
12 close.During desorption, the desorption time control intake valve B 2 and air outlet valve B 6 that control system sets according to control system are opened,
Intake valve A 5, air bleeding valve A 1, intake valve C 11, intake valve D 13 and air bleeding valve B 12 are closed.Cooling and drying early stage, control system
Unite and opened according to the drying time control intake valve C 11 and air outlet valve B 6 of control system setting, intake valve A 5, air bleeding valve A
1st, intake valve B 2, intake valve D 13 and air bleeding valve B 12 are closed；In the cooling and drying later stage, control system sets according to control system
Fixed time control intake valve D 13, intake valve C 11 and air bleeding valve B 12 are opened, intake valve A 5, air bleeding valve A 1, intake valve B
2 and air outlet valve B 6 is closed.It is suitable for the waste gas recovery containing special volatile organic matter VOC to utilize.
Embodiment 3 as shown in figure 16, with embodiment 1, simply it is also including removing wet condensation for the other structures of the present embodiment
Device 9, waste gas outlet connects the gas outlet except wet condenser 9 by intake valve C 11 and circulating fan 10, and steam outlet passes through
The connections of air outlet valve C 8 remove the air inlet of wet condenser 9, except the liquid outlet of wet condenser 9 connects separator.During absorption, control
The adsorption time control intake valve A 5 and air bleeding valve A 1 that system sets according to control system are opened, intake valve B 2, air outlet valve B
6th, intake valve C 11 and air outlet valve C 8 are closed.The desorption time that control system sets according to control system during desorption controls air inlet
Valve B 2 and air outlet valve B 6 are opened, and intake valve A 5, air bleeding valve A 1, intake valve C 11 and air outlet valve C 8 are closed.Cooling and drying
When, the drying time control intake valve C 11 and air outlet valve C 8 that control system sets according to control system are opened, intake valve A
5th, air bleeding valve A 1, intake valve B 2 and air outlet valve B 6 are closed.It is suitable for the waste gas recovery containing common VOC to utilize.
Embodiment 4 as shown in figure 17, with embodiment 3, simply it is also including air blower for the other structures of the present embodiment.Institute
The air blower stated is steamed by being connected to the inlet port of intake valve C 11, the water of absorber 4 after connecting pipe connection intake valve D 13
Vapor outlet also connects exhaust outlet by air bleeding valve B 12.During absorption, the adsorption time control that control system sets according to control system
Intake valve A 5 processed and air bleeding valve A 1 are opened, intake valve B 2, air outlet valve B 6, intake valve C 11, intake valve D 13, air outlet valve C
8 and air bleeding valve B 12 is closed.During desorption, desorption time control intake valve B 2 and go out that control system sets according to control system
Air valve B 6 is opened, and intake valve A 5, air bleeding valve A 1, intake valve C 11, intake valve D 13, air bleeding valve B 12 and air outlet valve C 8 are closed
Close.Cooling and drying early stage, the drying time control intake valve C 11 and air outlet valve C 8 that control system sets according to control system is opened
Open, intake valve A 5, air bleeding valve A 1, intake valve B 2, intake valve D 13 and air bleeding valve B 12 are closed；In cooling and drying later stage, control
The time control intake valve D 13, intake valve C 11 and air bleeding valve B 12 that system processed sets according to control system are opened, intake valve A
5th, air bleeding valve A 1, intake valve B 2, air outlet valve B 6 and air outlet valve C 8 are closed.It is suitable for containing special volatile organic matter VOC
Waste gas recovery utilize.
Embodiment 5 as shown in figure 18, with embodiment 1, simply absorber is two to the other structures of the present embodiment, absorption
It is annular sorbent bed 14 in device（May also be flush system adsorbent bed）.The exhaust gas inlet of each absorber 4 pass through respectively into
Air valve A 5 connects exhaust gas source, and the waste gas outlet of each absorber 4 connects exhaust outlet by air bleeding valve A 1 respectively.Source of water vapor is distinguished
The water vapour import of each absorber 4 is connected by intake valve B 2, the steam outlet of each absorber 4 passes through air outlet valve B 6 respectively
The air inlet of condenser 7 is reclaimed in connection.The waste gas outlet of each absorber 4 is also connected by intake valve C 11 and circulating fan 10 respectively
Take back the gas outlet for receiving condenser 7.Be connected with air outlet valve D 15 between condenser 7 and circulating fan 10 reclaiming.It is suitable for containing
The waste gas recovery of common VOC is utilized.Air outlet valve D 15 keeps strokes with intake valve C's 11.
Embodiment 6 as shown in figure 19, with embodiment 5, simply it is also including air blower for the other structures of the present embodiment.Institute
The air blower stated is steamed by being connected to the inlet port of intake valve C 11, the water of absorber 4 after connecting pipe connection intake valve D 13
Vapor outlet also connects exhaust outlet by air bleeding valve B 12.During absorption, the adsorption time control that control system sets according to control system
Intake valve A 5 processed and air bleeding valve A 1 are opened, intake valve B 2, air outlet valve B 6, intake valve C 11, intake valve D 13, air bleeding valve B
12 and air outlet valve D 15 is closed.During desorption, desorption time control intake valve B 2 and go out that control system sets according to control system
Air valve B 6 is opened, intake valve A 5, air bleeding valve A 1, intake valve C 11, intake valve D 13, air bleeding valve B 12 and air outlet valve D 15
Close.Cooling and drying early stage, the drying time control intake valve C 11, air outlet valve B 6 that control system sets according to control system
Opened with air outlet valve D 15, intake valve A 5, air bleeding valve A 1, intake valve B 2, intake valve D 13 and air bleeding valve B 12 are closed；
Cooling and drying later stage, time control intake valve D 13, intake valve C 11 and air bleeding valve B that control system sets according to control system
12 are opened, and intake valve A 5, air bleeding valve A 1, intake valve B 2, air outlet valve B 6 and air outlet valve D 15 are closed.It is suitable for containing special
The waste gas recovery of volatile organic matter VOC is utilized.
Embodiment 7 as shown in figure 20, with embodiment 5, simply it is also including removing wet condensation for the other structures of the present embodiment
Device 9, eliminates air outlet valve D 15, increased air outlet valve C 8.Waste gas outlet is connected by intake valve C 11 and circulating fan 10 and removed
The gas outlet of wet condenser 9, steam outlet connects the air inlet except wet condenser 9 by air outlet valve C 8, except wet condenser 9
Liquid outlet connection separator.During absorption, the Hes of adsorption time control intake valve A 5 that control system sets according to control system
Air bleeding valve A 1 is opened, and intake valve B 2, air outlet valve B 6, intake valve C 11 and air outlet valve C 8 are closed.Control system root during desorption
The desorption time control intake valve B 2 and air outlet valve B 6 set according to control system are opened, intake valve A 5, air bleeding valve A 1, air inlet
Valve C 11 and air outlet valve C 8 are closed.During cooling and drying, the drying time that control system sets according to control system controls intake valve
C 11 and air outlet valve C 8 are opened, and intake valve A 5, air bleeding valve A 1, intake valve B 2 and air outlet valve B 6 are closed.It is suitable for containing general
The waste gas recovery of logical VOC is utilized.
Embodiment 8 as shown in figure 21, with embodiment 7, simply it is also including air blower for the other structures of the present embodiment.Institute
The air blower stated is steamed by being connected to the inlet port of intake valve C 11, the water of absorber 4 after connecting pipe connection intake valve D 13
Vapor outlet also connects exhaust outlet by air bleeding valve B 12.During absorption, the adsorption time control that control system sets according to control system
Intake valve A 5 processed and air bleeding valve A 1 are opened, intake valve B 2, air outlet valve B 6, intake valve C 11, intake valve D 13, air outlet valve C
8 and air bleeding valve B 12 is closed.During desorption, desorption time control intake valve B 2 and go out that control system sets according to control system
Air valve B 6 is opened, and intake valve A 5, air bleeding valve A 1, intake valve C 11, intake valve D 13, air bleeding valve B 12 and air outlet valve C 8 are closed
Close.Cooling and drying early stage, the drying time control intake valve C 11 and air outlet valve C 8 that control system sets according to control system is opened
Open, intake valve A 5, air bleeding valve A 1, intake valve B 2, intake valve D 13 and air bleeding valve B 12 are closed；In cooling and drying later stage, control
The time control intake valve D 13, intake valve C 11 and air bleeding valve B 12 that system processed sets according to control system are opened, intake valve A
5th, air bleeding valve A 1, intake valve B 2, air outlet valve B 6 and air outlet valve C 8 are closed.It is suitable for containing special volatile organic matter VOC
Waste gas recovery utilize.
Embodiment 9 as shown in figure 22, with embodiment 7, simply it is also including air blower for the other structures of the present embodiment.Institute
The air blower stated is by being connected to the exhaust gas inlet of absorber 4 after connecting pipe connection intake valve E 16.During absorption, control system root
The adsorption time control intake valve A 5 and air bleeding valve A 1 set according to control system are opened, intake valve B 2, air outlet valve B 6, air inlet
Valve C 11, intake valve E 16 and air outlet valve C 8 are closed.During desorption, the desorption time control that control system sets according to control system
Intake valve B 2 processed and air outlet valve B 6 are opened, intake valve A 5, air bleeding valve A 1, intake valve C 11, intake valve E 16 and air outlet valve C
8 close.Cooling and drying early stage, drying time control intake valve C 11 and air outlet valve C that control system sets according to control system
8 are opened, and intake valve A 5, air bleeding valve A 1, intake valve B 2, air outlet valve B 6 and intake valve E 16 are closed.In the cooling and drying later stage,
The time control intake valve E 16 and air bleeding valve A 1 that control system sets according to control system are opened, intake valve A 5, intake valve B
2nd, air outlet valve B 6, intake valve C 11 and air outlet valve C 8 are closed.It is suitable for the waste gas recovery containing special volatile organic matter VOC
Utilize.
Above-described embodiment is only preferred and exemplary, and those skilled in the art can be carried out according to the description of this patent
The improvement of equivalent technologies, it is all in the protection domain of this patent.
Claims (3)
1. a kind of device for recycling exhaust gas containing VOC, it includes one or more absorber, circulation
Blower fan, source of water vapor and control system；Middle part is provided with the adsorbent bed or annular sorbent bed of tiling in absorber, under it
End is provided with exhaust gas inlet and steam outlet, and upper end is provided with waste gas outlet and water vapour import；Exhaust gas inlet is connected by intake valve A
Exhaust gas source is connect, waste gas outlet connects exhaust outlet by air bleeding valve A；Source of water vapor connects the water vapour of absorber by intake valve B
Import, the steam outlet of absorber connects the air inlet for reclaiming condenser by air outlet valve B；It is characterized in that：It also includes
Reclaim condenser or recovery condenser and except wet condenser；Reclaim the liquid outlet connection separator of condenser；Waste gas outlet is also
Connected by intake valve C and circulating fan and reclaim condenser or the gas outlet except wet condenser；Steam outlet passes through air outlet valve C
Connection removes the air inlet of wet condenser, except the liquid outlet of wet condenser connects separator；During absorption, control system is according to control
The adsorption time control intake valve A and air bleeding valve A of default is opened, and intake valve B, air outlet valve B and intake valve C are closed or air inlet
Valve B, air outlet valve B, intake valve C and air outlet valve C are closed；The desorption time control that control system sets according to control system during desorption
Intake valve B and air outlet valve B are opened, intake valve A, air bleeding valve A and intake valve C is closed or intake valve A, air bleeding valve A, intake valve C and
Air outlet valve C is closed；During cooling and drying, the drying time that control system sets according to control system controls intake valve C and air outlet valve B
Open, intake valve A, air bleeding valve A and intake valve B are closed or intake valve C and air outlet valve C unlatchings, intake valve A, air bleeding valve A, air inlet
Valve B and air outlet valve B is closed.
2. the device for recycling exhaust gas containing VOC according to claim 1, it is characterised in that：Also
Including air blower, described air blower is by being connected to the inlet port of intake valve C, absorber after connecting pipe connection intake valve D
Steam outlet also by air bleeding valve B connect exhaust outlet；During absorption, the adsorption time that control system sets according to control system
Control intake valve A and air bleeding valve A is opened, and intake valve B, air outlet valve B, intake valve C, intake valve D and air bleeding valve B are closed or intake valve
B, air outlet valve B, intake valve C, intake valve D, air bleeding valve B and air outlet valve C are closed；During desorption, control system sets according to control system
Fixed desorption time control intake valve B and air outlet valve B is opened, intake valve A, air bleeding valve A, intake valve C, intake valve D and air bleeding valve B
Close or intake valve A, air bleeding valve A, intake valve C, intake valve D, air bleeding valve B and air outlet valve C are closed；Cooling and drying early stage, control
The drying time control intake valve C and air outlet valve B that system sets according to control system is opened, intake valve A, air bleeding valve A, intake valve
B, intake valve D and air bleeding valve B are closed or intake valve C and air outlet valve C is opened, intake valve A, air bleeding valve A, intake valve B, air outlet valve B,
Intake valve D and air bleeding valve B is closed；In the time control intake valve that cooling and drying later stage, control system set according to control system
D, intake valve C and air bleeding valve B are opened, intake valve A, air bleeding valve A, intake valve B and air outlet valve B are closed or intake valve A, air bleeding valve A,
Intake valve B, air outlet valve B and air outlet valve C are closed.
3. the device for recycling exhaust gas containing VOC according to claim 1, it is characterised in that：Also
Including air blower, described air blower is by being connected to the exhaust gas inlet of absorber after connecting pipe connection intake valve E；During absorption,
The adsorption time control intake valve A and air bleeding valve A that control system is set according to control system is opened, and intake valve B, air outlet valve B, is entered
Air valve C and intake valve E is closed or intake valve B, air outlet valve B, intake valve C, intake valve E and air outlet valve C are closed；During desorption, control
The desorption time control intake valve B and air outlet valve B that system sets according to control system is opened, intake valve A, air bleeding valve A, intake valve
C and intake valve E is closed or intake valve A, air bleeding valve A, intake valve C, intake valve E and air outlet valve C are closed；Cooling and drying early stage, control
The drying time control intake valve C and air outlet valve B that system processed sets according to control system is opened, intake valve A, air bleeding valve A, air inlet
Valve B and intake valve E is closed or intake valve C and air outlet valve C is opened, intake valve A, air bleeding valve A, intake valve B, air outlet valve B and air inlet
Valve E is closed；The time control intake valve E and air bleeding valve A set according to control system in cooling and drying later stage, control system are opened
Open, intake valve A, intake valve B, air outlet valve B and intake valve C are closed or intake valve A, intake valve B, air outlet valve B, intake valve C and goes out
Air valve C is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410237733.7A CN103977670B (en) | 2014-05-31 | 2014-05-31 | Device for recycling waste gas containing volatile organic compounds |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410237733.7A CN103977670B (en) | 2014-05-31 | 2014-05-31 | Device for recycling waste gas containing volatile organic compounds |
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| CN103977670B true CN103977670B (en) | 2017-05-24 |
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| CN106039921A (en) * | 2016-06-30 | 2016-10-26 | 清本环保工程(杭州)有限公司 | Organic waste gas treatment method |
| CN109351123B (en) * | 2018-12-10 | 2021-04-09 | 佛山科学技术学院 | VOC adsorption equipment capable of measuring VOC concentration on line and use method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100503006C (en) * | 2005-06-22 | 2009-06-24 | 福建大拇指环保科技有限公司 | Automatic reclaiming process for industrial organic exhaust gas |
| CN201135846Y (en) * | 2007-12-24 | 2008-10-22 | 延乃峰 | Organic waste gas cleaning and recovering device |
| JP2009240880A (en) * | 2008-03-31 | 2009-10-22 | Ihi Corp | System of treating volatile organic compound |
| CN101342440B (en) * | 2008-08-20 | 2010-11-03 | 孙宗长 | Recovery method for organic waste gas of same-medium heat conduction plastic flexible package printing industry |
| CN101829473B (en) * | 2010-05-18 | 2012-06-06 | 沈阳石蜡化工有限公司 | Process for purifying organic waste gas and reclaiming organic solvent |
| CN102899064B (en) * | 2012-11-05 | 2015-11-18 | 陈玲海 | Gas recovery system for oil |
| CN203469759U (en) * | 2013-07-24 | 2014-03-12 | 泉州市天龙环境工程有限公司 | Volatile organic waste gas recycling device |
| CN203899404U (en) * | 2014-05-31 | 2014-10-29 | 李玉彪 | Recycling device for waste gas containing volatile organic compounds |
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