CN209302475U - A kind of movable type VOC desorption purification device - Google Patents
A kind of movable type VOC desorption purification device Download PDFInfo
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- CN209302475U CN209302475U CN201821892237.5U CN201821892237U CN209302475U CN 209302475 U CN209302475 U CN 209302475U CN 201821892237 U CN201821892237 U CN 201821892237U CN 209302475 U CN209302475 U CN 209302475U
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- Prior art keywords
- desorption
- heat exchanger
- filter
- purification
- movable type
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- 238000003795 desorption Methods 0.000 title claims abstract description 70
- 238000000746 purification Methods 0.000 title claims abstract description 55
- 230000003197 catalytic effect Effects 0.000 claims abstract description 31
- 230000008901 benefit Effects 0.000 claims abstract description 16
- 230000001105 regulatory effect Effects 0.000 claims abstract description 13
- 239000003054 catalyst Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 150000004706 metal oxides Chemical class 0.000 claims description 4
- 229910000510 noble metal Inorganic materials 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 1
- 239000003463 adsorbent Substances 0.000 abstract description 15
- 230000007547 defect Effects 0.000 abstract description 4
- 230000007812 deficiency Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 39
- 239000012855 volatile organic compound Substances 0.000 description 34
- 238000000034 method Methods 0.000 description 9
- 239000007787 solid Substances 0.000 description 7
- 230000008929 regeneration Effects 0.000 description 6
- 238000011069 regeneration method Methods 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 230000008676 import Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002920 hazardous waste Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 210000000952 spleen Anatomy 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- GCNLQHANGFOQKY-UHFFFAOYSA-N [C+4].[O-2].[O-2].[Ti+4] Chemical compound [C+4].[O-2].[O-2].[Ti+4] GCNLQHANGFOQKY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000002131 composite material Substances 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
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model relates to VOC, and purification techniques field is desorbed, purification device is desorbed more particularly to a kind of movable type VOC, including car-mounted device and desorption purification system, the desorption purification system is made of desorption blower, filter, heat exchanger, electric heater, catalytic reactor, hot wind regulating valve and benefit air-cooler；The inner cavity of car-mounted device is arranged in the filter, and the output end of filter is connected by air inlet pipe with heat exchanger, the desorption assembling is in air inlet pipe, the catalytic reactor is connected with heat exchanger, the electric heater is mounted on catalytic reactor, perforation is connected with return pipe on the shell of the heat exchanger, and the hot wind regulating valve and benefit air-cooler are installed on return pipe.The utility model overcomes the deficiencies in the prior art, and design is rationally, compact-sized, and desorption purification can be carried out to multiple spot adsorbent equipment, reduces cost of investment, improves utilization efficiency, thoroughly solves traditional desorption apparatus defect, realizes technological break-through.
Description
Technical field
The utility model relates to VOC, and purification techniques field is desorbed, and in particular to a kind of movable type VOC desorption purification device.
Background technique
VOC is the english abbreviation of volatile organic compounds.VOC on common meaning is exactly to refer to volatile organic matter；But
It is that definition on environment protection significance refers to active a kind of volatile organic matter, i.e., that a kind of volatility that can generate harm is organic
Object.
In VOCs treatment technique, absorption is high treating effect, using one of wider method, and adsorbent has work
Property charcoal, diatomite, zeolite etc., wherein activated carbon adsorption application is most.By adsorption system, VOC concentration not only can be made significantly
It reduces, realizes exhaust gas qualified discharge, and desorbed after adsorbing by air lift, gleanings can be back to production.
Traditional VOC adsorbent equipment faces following problem behind adsorption saturation:
(1) adsorbent material is replaced, former adsorbent material need to give the unit of dangerous waste processing qualification to be handled, run
Expense is high；
(2) desorption and regeneration is carried out, the exhaust gas for needing to be equipped with desorption and regeneration device, and being desorbed needs to be recycled again
Or purified treatment, the one-to-one desorption and regeneration mode invest it is big, take up space, utilization rate is low and there is still a need for independent for gas after being desorbed
The problems such as processing.
For this purpose, we have proposed a kind of movable type VOC, and purification device is desorbed.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of movable type VOC desorption purification device, overcomes existing
There is the deficiency of technology, design is rationally, compact-sized, combines by that will be desorbed, and purify and move tool Unit three, forms a set of collection
Forming apparatus can carry out desorption purification to multiple spot adsorbent equipment, reduce cost of investment, improve utilization efficiency, hazardous waste is avoided to move
Dynamic and disposition link, thoroughly solves traditional desorption apparatus defect, realizes technological break-through.
(2) technical solution
In order to achieve the above object, the utility model is achieved by the following technical programs:
A kind of movable type VOC desorption purification device, including car-mounted device and desorption purification system, the desorption purification system
It is made of desorption blower, filter, heat exchanger, electric heater, catalytic reactor, hot wind regulating valve and benefit air-cooler；
The inner cavity of car-mounted device is arranged in the filter, and the output end of filter passes through air inlet pipe and heat exchanger phase
Connection, in air inlet pipe, the catalytic reactor is connected the desorption assembling with heat exchanger, the electric heater peace
On catalytic reactor, perforation is connected with return pipe, the hot wind regulating valve and benefit cold wind on the shell of the heat exchanger
Machine is installed on return pipe.
Preferably, the input terminal of the filter reaches the exocoel of car-mounted device and is equipped with dedicated intake interface, described
The other end of return pipe reaches the exocoel of car-mounted device and is equipped with dedicated return-air interface.
Preferably, perforation is equipped with purification gas discharge outlet, and the other end of purification gas discharge outlet on the return pipe
Extend to the exocoel of car-mounted device.
Preferably, PLC controller is installed in the inner cavity of the car-mounted device.
Preferably, the filter can be cloth envelop collector, Cyclonic separation filter, venturi filter, or be upper
State the combination of three kinds of filters.
Preferably, the heat exchanger is tubular heat exchanger.
Preferably, catalyst can be noble metal or metal oxide in the catalytic reactor.
Preferably, the output end of the catalytic reactor is connected with the shell entrance of heat exchanger.
Preferably, the car-mounted device can be vehicular or trailer type structure.
(3) beneficial effect
The utility model embodiment provides a kind of movable type VOC desorption purification device, have it is following the utility model has the advantages that
1, by vehicular or the structure of trailer type, conveniently moving not only realizes the integration of desorption purification, Er Qieke
Having taken traditional VOC desorption apparatus and purification device needs that occupied ground caused by one-to-one match, one-time investment be big, equipment
The disadvantages such as utilization rate is low.
2, pass through desorption blower, filter, heat exchanger, electric heater, catalytic reactor, hot wind regulating valve, benefit cold wind
Desorption, purification and mobile tool Unit three are combined, form a set of integrated equipment by the composite structure of machine and car-mounted device, can be right
Multiple spot adsorbent equipment carries out desorption purification, reduces cost of investment, improves utilization efficiency, avoids hazardous waste mobile and disposition ring
Section thoroughly solves traditional desorption apparatus defect, realizes technological break-through.
3, by installing purification gas discharge outlet on return pipe, generated extra purification gas will can directly be desorbed
It is discharged into atmosphere, effectively avoids atmosphere pollution caused by omitting VOC.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the flow diagram of the utility model；
Fig. 2 is a kind of embodiment schematic diagram of the utility model；
Fig. 3 is the utility model another embodiment schematic diagram.
In figure: desorption blower 1, heat exchanger 3, electric heater 4, catalytic reactor 5, hot wind regulating valve 6, is mended filter 2
Air-cooler 7, dedicated intake interface 8, dedicated return-air interface 9, car-mounted device 10, purification gas discharge outlet 11.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Embodiment 1
Referring to attached Fig. 1 and 2, a kind of vehicle moving VOC desorption purification device, including vehicular shell and desorption purification system
System, the desorption purification system is by desorption blower 1, filter 2, heat exchanger 3, electric heater 4, catalytic reactor 5, hot wind tune
It saves valve 6 and mends air-cooler 7 and form；
The inner cavity of car-mounted device 11 is arranged in the filter 2, and the output end of filter 2 passes through air inlet pipe and heat exchange
Device 3 is connected, and the desorption blower 1 is mounted in air inlet pipe, and the catalytic reactor 5 is connected with heat exchanger 3, the electricity
Heater 4 is mounted on catalytic reactor 5, and perforation is connected with return pipe on the shell of the heat exchanger 3, and the hot wind is adjusted
Valve 6 and benefit air-cooler 7 are installed on return pipe.
The input terminal of the filter 2 reaches the exocoel of vehicular shell and is equipped with dedicated intake interface 8, the reflux
The other end of pipe reaches the exocoel of vehicular shell and is equipped with dedicated return-air interface 9, is inhaled by special purpose interface 8 and scene VOC
The desorption of adsorption device connects, and is connect by special purpose interface 9 with the desorption import of scene VOC adsorbent equipment, forms one and closes
Road and VOC desorption and regeneration purification device form a circuit.
Perforation is equipped with purification gas discharge outlet 11 on the return pipe, and the other end of purification gas discharge outlet 11 prolongs
The exocoel of vehicular shell is extended to, excessive gas caused by desorption can effectively be discharged.
PLC controller is installed in the inner cavity of the vehicular shell, by controlling purified High Temperature Gas and mending cold wind
The benefit cold blast rate of machine 7, control enter the desorption temperature degree and oxygen content of scene VOC adsorbent equipment, and wherein desorption gas temperature is not
Be higher than 120 DEG C, oxygen content control between 10-15%, while by control desorption 1 flow control gas of blower stop when
Between, to control efficiency of heating- utilization, it is ensured that efficiency of heating- utilization is not less than 70%, is worked off one's feeling vent one's spleen by calculating 3 shell of heat exchanger
The heat of body controls hot wind regulating valve 6, so that the benefit air quantity for mending air-cooler 7 is minimum.
The filter 2 can be cloth envelop collector, Cyclonic separation filter, venturi filter, or be above-mentioned three kinds
The combination of filter can effectively filter out the big solid particle in gas, and the solid content of gas should be lower than 5mg/m3 after filtering.
The heat exchanger 3 is tubular heat exchanger, and heat transfer effect is more preferably.Catalyst can be noble metal in the catalytic reactor 5
Or catalytic oxidation occurs in catalytic oxidizer 5 for metal oxide, VOC desorption gas, reaction temperature is 300-450 DEG C.
The output end of the catalytic reactor 5 is connected with the shell entrance of heat exchanger 3, makes gas after purifying and enters tube side gas
Carry out heat exchange.
The PLC controller and desorption blower 1, heat exchanger 3,7 electricity of electric heater 4, hot wind regulating valve 6 and benefit air-cooler
Property connection.
Embodiment 2
Referring to attached drawing 1 and 3, a kind of mobile VOC desorption purification device of trailer type, including trailer type shell and desorption purification system
System, the desorption purification system is by desorption blower 1, filter 2, heat exchanger 3, electric heater 4, catalytic reactor 5, hot wind tune
It saves valve 6 and mends air-cooler 7 and form；
The inner cavity of car-mounted device 11 is arranged in the filter 2, and the output end of filter 2 passes through air inlet pipe and heat exchange
Device 3 is connected, and the desorption blower 1 is mounted in air inlet pipe, and the catalytic reactor 5 is connected with heat exchanger 3, the electricity
Heater 4 is mounted on catalytic reactor 5, and perforation is connected with return pipe on the shell of the heat exchanger 3, and the hot wind is adjusted
Valve 6 and benefit air-cooler 7 are installed on return pipe.
The input terminal of the filter 2 reaches the exocoel of trailer type shell and is equipped with dedicated intake interface 8, the reflux
The other end of pipe reaches the exocoel of trailer type shell and is equipped with dedicated return-air interface 9, is inhaled by special purpose interface 8 and scene VOC
The desorption of adsorption device connects, and is connect by special purpose interface 9 with the desorption import of scene VOC adsorbent equipment, forms one and closes
Road and VOC desorption and regeneration purification device form a circuit.
Perforation is equipped with purification gas discharge outlet 11 on the return pipe, and the other end of purification gas discharge outlet 11 prolongs
The exocoel of trailer type shell is extended to, excessive gas caused by desorption can effectively be discharged.
PLC controller is installed in the inner cavity of the trailer type shell, by controlling purified High Temperature Gas and mending cold wind
The benefit cold blast rate of machine 7, control enter the desorption temperature degree and oxygen content of scene VOC adsorbent equipment, and wherein desorption gas temperature is not
Be higher than 120 DEG C, oxygen content control between 10-15%, while by control desorption 1 flow control gas of blower stop when
Between, to control efficiency of heating- utilization, it is ensured that efficiency of heating- utilization is not less than 70%, is worked off one's feeling vent one's spleen by calculating 3 shell of heat exchanger
The heat of body controls hot wind regulating valve 6, so that the benefit air quantity for mending air-cooler 7 is minimum.
The filter 2 can be cloth envelop collector, Cyclonic separation filter, venturi filter, or be above-mentioned three kinds
The combination of filter can effectively filter out the big solid particle in gas, and the solid content of gas should be lower than 5mg/m3 after filtering.
The heat exchanger 3 is tubular heat exchanger, and heat transfer effect is more preferably.Catalyst can be noble metal in the catalytic reactor 5
Or catalytic oxidation occurs in catalytic oxidizer 5 for metal oxide, VOC desorption gas, reaction temperature is 300-450 DEG C.
The output end of the catalytic reactor 5 is connected with the shell entrance of heat exchanger 3, makes gas after purifying and enters tube side gas
Carry out heat exchange.
The PLC controller and desorption blower 1, heat exchanger 3,7 electricity of electric heater 4, hot wind regulating valve 6 and benefit air-cooler
Property connection.
As shown in Figure 1-3, a kind of movable type VOC desorption purification device working principle is as follows: after staff debugs, leading to
It crosses drafting tool and car-mounted device 10 is moved to target location according to demand, filled first by special purpose interface 8 and scene VOC absorption
The desorption connection set, is connect by special purpose interface 9 with the desorption import of scene VOC adsorbent equipment, formation one is closed circuit；
By desorption blower 1 by the gas of live VOC adsorbent equipment filter by suction 2 first, its solid particle is removed, is removed
Gas solid content is less than 5mg/m3 after solid particle, and gas enters heat exchanger 3 by desorption blower 1 again, exchanges heat, then pass through
Electric heater heats the gas to be processed from adsorbent equipment, and temperature control gas after 300-450 DEG C, heating reaches catalysis
Gas to be processed is carried out low-temperature catalytic burning by reactor 5, and reaction temperature is 300-450 DEG C, and VOC is thoroughly decomposed into titanium dioxide
Carbon and water；
The outlet of catalytic reactor 5 is connected with the shell import of heat exchanger 3, after heat exchange, is adjusted by hot wind regulating valve 6
It is mixed into live VOC adsorbent equipment gas air quantity, and with the cold wind that air-cooler 7 fills into is mended, control enters scene VOC and adsorbs
The gas temperature of device carries out desorption and regeneration purification process less than between 120 DEG C and oxygen content 10-15% again, until desorption
Completely, while extra purification gas can be directly discharged into atmosphere；
The present apparatus will be desorbed, purification and mobile tool Unit three combine, and form a set of integrated equipment, can adsorb and fill to multiple spot
It sets and carries out desorption purification, reduce cost of investment, improve utilization efficiency, avoid hazardous waste mobile and disposition link, thoroughly solve
Traditional desorption apparatus defect realizes technological break-through.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；Although referring to aforementioned reality
Example is applied the utility model is described in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and model of various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (9)
1. purification device, including car-mounted device and desorption purification system is desorbed in a kind of movable type VOC, it is characterised in that: described de-
Attached purification system is by desorption blower, filter, heat exchanger, electric heater, catalytic reactor, hot wind regulating valve and mends air-cooler
Composition；
The inner cavity of car-mounted device is arranged in the filter, and the output end of filter is connected by air inlet pipe with heat exchanger
It connects, in air inlet pipe, the catalytic reactor is connected the desorption assembling with heat exchanger, the electric heater installation
On catalytic reactor, perforation is connected with return pipe, the hot wind regulating valve and benefit air-cooler on the shell of the heat exchanger
It is installed on return pipe.
2. purification device is desorbed in a kind of movable type VOC as described in claim 1, it is characterised in that: the input of the filter
End reaches the exocoel of car-mounted device and is equipped with dedicated intake interface, and the other end of the return pipe reaches the exocoel of car-mounted device
And dedicated return-air interface is installed.
3. purification device is desorbed in a kind of movable type VOC as described in claim 1, it is characterised in that: penetrated through on the return pipe
Purification gas discharge outlet is installed, and the other end of purification gas discharge outlet extends to the exocoel of car-mounted device.
4. a kind of movable type VOC desorption purification device as described in claim 1, it is characterised in that: the car-mounted device it is interior
PLC controller is installed in chamber.
5. a kind of movable type VOC desorption purification device as described in claim 1, it is characterised in that: the filter can be
Cloth envelop collector, Cyclonic separation filter, venturi filter, or the combination for above-mentioned three kinds of filters.
6. purification device is desorbed in a kind of movable type VOC as described in claim 1, it is characterised in that: the heat exchanger is column
Pipe heat exchanger.
7. purification device is desorbed in a kind of movable type VOC according to claim 1, it is characterised in that: the catalytic reactor
Middle catalyst can be noble metal or metal oxide.
8. purification device is desorbed in a kind of movable type VOC according to claim 1, it is characterised in that: the catalytic reactor
Output end be connected with the shell entrance of heat exchanger.
9. purification device is desorbed in a kind of movable type VOC according to claim 1, it is characterised in that: the car-mounted device can
For vehicular or trailer type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821892237.5U CN209302475U (en) | 2018-11-16 | 2018-11-16 | A kind of movable type VOC desorption purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821892237.5U CN209302475U (en) | 2018-11-16 | 2018-11-16 | A kind of movable type VOC desorption purification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209302475U true CN209302475U (en) | 2019-08-27 |
Family
ID=67673346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821892237.5U Expired - Fee Related CN209302475U (en) | 2018-11-16 | 2018-11-16 | A kind of movable type VOC desorption purification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209302475U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686259A (en) * | 2019-10-18 | 2020-01-14 | 郭渊明 | Movable thermal oxidizer |
| CN111195473A (en) * | 2020-03-27 | 2020-05-26 | 威海蓝创环保设备有限公司 | A portable desorption device for VOC administers |
| CN113731116A (en) * | 2021-08-09 | 2021-12-03 | 福建省鑫森炭业股份有限公司 | A fully automatic movable integrated device for efficiently recovering organic gas and its use method |
-
2018
- 2018-11-16 CN CN201821892237.5U patent/CN209302475U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686259A (en) * | 2019-10-18 | 2020-01-14 | 郭渊明 | Movable thermal oxidizer |
| CN111195473A (en) * | 2020-03-27 | 2020-05-26 | 威海蓝创环保设备有限公司 | A portable desorption device for VOC administers |
| CN113731116A (en) * | 2021-08-09 | 2021-12-03 | 福建省鑫森炭业股份有限公司 | A fully automatic movable integrated device for efficiently recovering organic gas and its use method |
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Granted publication date: 20190827 |