CN208302476U - Switch unit for VOCs treatment - Google Patents
Switch unit for VOCs treatment Download PDFInfo
- Publication number
- CN208302476U CN208302476U CN201820422938.6U CN201820422938U CN208302476U CN 208302476 U CN208302476 U CN 208302476U CN 201820422938 U CN201820422938 U CN 201820422938U CN 208302476 U CN208302476 U CN 208302476U
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- China
- Prior art keywords
- branch pipe
- air inlet
- switch unit
- blower
- exhaust outlet
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- 239000012855 volatile organic compound Substances 0.000 title claims abstract description 11
- 238000011084 recovery Methods 0.000 claims abstract description 103
- 230000007246 mechanism Effects 0.000 claims abstract description 72
- 238000013016 damping Methods 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 108
- 239000007788 liquid Substances 0.000 description 103
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 45
- 239000003960 organic solvent Substances 0.000 description 38
- 239000007921 spray Substances 0.000 description 34
- 238000001179 sorption measurement Methods 0.000 description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 29
- 238000000034 method Methods 0.000 description 28
- 230000004888 barrier function Effects 0.000 description 27
- 230000008569 process Effects 0.000 description 24
- 238000005507 spraying Methods 0.000 description 23
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 22
- 239000002904 solvent Substances 0.000 description 21
- 230000010412 perfusion Effects 0.000 description 17
- 238000004140 cleaning Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 14
- 238000004064 recycling Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000012535 impurity Substances 0.000 description 6
- 239000002912 waste gas Substances 0.000 description 6
- 238000005201 scrubbing Methods 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000003795 desorption Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 239000002649 leather substitute Substances 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000010815 organic waste Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000002336 sorption--desorption measurement Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a kind of switch units for VOCs treatment.Switch unit includes switching mechanism, switching mechanism includes the first valve, the second valve, the first branch pipe and the second branch pipe, the connection of the air inlet of the air inlet of first branch pipe and the second branch pipe is for organic exhaust gas entrance, the exhaust outlet of first branch pipe is used to be connected to the air inlet of the first recovery unit, the exhaust outlet of second branch pipe is used to be connected to the air inlet of processing unit, first valve is located at the opening and closing that the first branch pipe is controlled on the first branch pipe, and the second valve is located at the opening and closing that the second branch pipe is controlled on the second branch pipe.Switch unit can be selectively directing the first recovery unit or processing unit according to the composition of organic exhaust gas to be processed, to flexibly handle organic exhaust gas, the practicability for improving air separator of oxygenerator has important practical significance.
Description
Technical field
The utility model relates to organic exhaust gas recovery technology field more particularly to a kind of switchings for VOCs treatment
Unit.
Background technique
A large amount of organic solvent is used in industries such as coating, process hides, packaging, printing and dyeing, printings, on the production line of such industry
A large amount of volatile organic waste gas (Volatile Organic Compounds, abbreviation VOC) can be generated, these volatility are organic
If the organic solvent in exhaust gas is not recycled, environmental pollution is not only resulted in, is caused harm to the human body, and will cause resource
Waste.
Publication No. CN101992005A, entitled " high efficient organic solvent recovery unit and its Temperature and Humidity Control
The high efficient organic solvent recovery unit that the Chinese patent of method " discloses include a scrubbing tower, an active carbon adsorption desorption unit,
One forecooler, a Temperature and Humidity Control unit.High efficient organic solvent recovery unit in CN101992005A is to containing DMF and toluene
The method that is recycled of exhaust gas be first to be cooled down and cooled down containing the exhaust gas of DMF and toluene by forecooler, then exhaust gas passes through
Scrubbing tower carries out washing absorption to the DMF in exhaust gas by scrubbing tower, then by Temperature and Humidity Control unit to being discharged from scrubbing tower
Half purifying gas flow is heated, to improve the relative humidity of half purifying gas flow, finally by active carbon adsorption desorption unit to from warm and humid
Toluene in half purifying gas flow of degree control unit discharge is recycled.High efficient organic solvent in CN101992005A returns
Receiving apparatus is only applicable to the waste gas recovery simultaneously containing organic solvent that is soluble easily in water and being not readily dissolved in water, is not easy for only containing
It is dissolved in the exhaust gas of the organic solvent of water, if recycled using the device, is still needed first through forecooler, scrubbing tower
With Temperature and Humidity Control unit, finally the organic solvent for being not readily dissolved in water is recycled by active carbon adsorption desorption unit, is increased instead
The complexity of processing is added, cost recovery is higher.
Publication No. CN106413850A, it is entitled " a kind of activated carbon adsorption recovery processing synthetic leather factory exhaust gas
The device that the Chinese patent of device and method " discloses includes the waste gas recovering device, gaseous effluent, active carbon being sequentially communicated
Adsorption tanks, air extractor, gas cooler and spray absorber can also include the spray being connected to the waste gas recovering device
Tower, spray column are used to carry out the recycling of preliminary DMFA, and the effect of waste gas recovering device is to be exclusively used in synthetic leather factory exhaust gas
It collects, the effect of absorbent charcoal adsorption tank is to be inhaled according to the temperature of gas come absorbing organic solvent or desorption organic solvent, spray
Tower is received for further recycling the organic solvent including DMFA.The device processing method of embodiment 1 in CN106413850A
It is that synthetic leather dry process production line technology waste gas just enters tail gas recycle with the tail gas cocurrent of post treatment production line through spray column and fills
It sets, then tail gas is recycled by absorbent charcoal adsorption tank and spray absorber.Recycling and processing device in CN106413850A
It is capable of handling the tail gas of synthetic leather dry process production line technology waste gas and post treatment production line, is finally still needed to through spray absorber,
But for simultaneously containing soluble easily in water with the exhaust gas of organic solvent that is being not readily dissolved in water, only containing the organic solvent for being not readily dissolved in water
Exhaust gas still can not flexibly handle.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of for VOCs treatment
Switch unit can be returned flexibly for the exhaust gas simultaneously containing the first solvent and the second solvent or the exhaust gas only containing the second solvent
It receives and handles.
The purpose of this utility model is implemented with the following technical solutions:
A kind of switch unit for VOCs treatment, the air inlet of processing unit are connected to the exhaust of the first recovery unit
Mouthful, the processing unit is the second recovery unit, and the switch unit includes switching mechanism, and the switching mechanism includes the first valve
Door, the second valve, the first branch pipe and the second branch pipe, the air inlet of first branch pipe are connected to the air inlet of second branch pipe
For organic exhaust gas entrance, the exhaust outlet of first branch pipe is used to be connected to the air inlet of first recovery unit, and described the
The exhaust outlet of two branch pipes is used to be connected to the air inlet of the processing unit, and first valve is located on first branch pipe to control
The opening and closing of first branch pipe is made, second valve is located at the opening and closing that second branch pipe is controlled on second branch pipe.
Optionally, the switch unit includes the first supervisor, the second supervisor and multiple switching mechanisms, first supervisor point
It is not connected to the exhaust outlet of the air inlet of first recovery unit and the first branch pipe of the multiple switching mechanism, described second is main
Pipe is respectively communicated with the air inlet of the processing unit, the exhaust outlet of the second branch pipe of the multiple switching mechanism and first time described
Receive the exhaust outlet of unit.
Optionally, the switch unit further includes blower, and the exhaust outlet of the blower is connected to the air inlet of first branch pipe
Mouthful and second branch pipe air inlet, the variable frequency adjustment device for controlling air quantity is provided on the blower.
Optionally, the switch unit further includes the first ripple damping tube and the second ripple damping tube, first ripple
Damping tube is respectively communicated with the air inlet of the exhaust outlet of the blower, the air inlet of first branch pipe and second branch pipe, institute
State the air inlet that the second ripple damping tube is connected to the blower.
Optionally, the exhaust ports of the blower are provided with the sealing valve of the exhaust orifice open/close for controlling the blower.
A kind of switch unit for VOCs treatment, the air inlet of processing unit are connected to the exhaust of the first recovery unit
Mouthful, the processing unit is the second recovery unit, and the switch unit includes switching mechanism, and the switching mechanism includes switching
Valve, the first branch pipe and the second branch pipe, the exhaust outlet of first branch pipe are used to be connected to the air inlet of first recovery unit, institute
The exhaust outlet for stating the second branch pipe is used to be connected to the air inlet of the processing unit, and the switching valve is used for selectively by organic waste
Conductance is to first branch pipe or second branch pipe.
Optionally, the switch unit includes the first supervisor, the second supervisor and multiple switching mechanisms, first supervisor point
It is not connected to the exhaust outlet of the air inlet of first recovery unit and the first branch pipe of the multiple switching mechanism, described second is main
Pipe is respectively communicated with the air inlet of the processing unit, the exhaust outlet of the second branch pipe of the multiple switching mechanism and first time described
Receive the exhaust outlet of unit.
Optionally, the switch unit further includes blower, and the exhaust outlet of the blower is connected to the air inlet of first branch pipe
Mouthful and second branch pipe air inlet, the variable frequency adjustment device for controlling air quantity is provided on the blower.
Optionally, the switch unit further includes the first ripple damping tube and the second ripple damping tube, first ripple
Damping tube is respectively communicated with the air inlet of the exhaust outlet of the blower, the air inlet of first branch pipe and second branch pipe, institute
State the air inlet that the second ripple damping tube is connected to the blower.
Optionally, the exhaust ports of the blower are provided with the sealing valve of the exhaust orifice open/close for controlling the blower.
Compared with prior art, the utility model has the beneficial effects that:
Switch unit can be selectively directing the first recovery unit or processing according to the composition of organic exhaust gas to be processed
Unit, to flexibly handle organic exhaust gas, the practicability for improving air separator of oxygenerator has important practical significance.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the air separator of oxygenerator of the utility model one embodiment.
Fig. 2 is the structural schematic diagram of the air separator of oxygenerator of the utility model another embodiment.
Fig. 3 is the structural schematic diagram of the air separator of oxygenerator of the utility model another embodiment.
Fig. 4 is the structural schematic diagram of the air separator of oxygenerator of the utility model another embodiment.
Fig. 5 is the structural schematic diagram of the air separator of oxygenerator of the utility model another embodiment.
Fig. 6 is the structural schematic diagram of the air separator of oxygenerator of the utility model another embodiment.
Fig. 7 is the structural schematic diagram of the air separator of oxygenerator of the utility model another embodiment.
Fig. 8 is the main view of the pretreatment unit of the utility model embodiment.
Fig. 9 is the top view of the pretreatment unit of the utility model embodiment.
Figure 10 is the pretreatment unit of the utility model embodiment and the structural schematic diagram that switching mechanism is connect.
Figure 11 is the schematic cross-section of the organic solvent recovery unit of the utility model embodiment.
Figure 12 is the main view of the organic solvent recovery unit of the utility model embodiment.
Figure 13 is the top view of the spraying mechanism of the utility model embodiment.
Figure 14 is the perfusion tube of the spraying mechanism of the utility model embodiment and the structural schematic diagram that connecting tube is connect.
Figure 15 is the perfusion tube of the spraying mechanism of the utility model embodiment and the partial structural diagram that sparge pipe is connect.
Figure 16 is the radial cross section of the sparge pipe of the spraying mechanism of the utility model embodiment.
Figure 17 is the structural schematic diagram of existing liquid trap.
Figure 18 is the structural schematic diagram of the liquid trap of the utility model embodiment.
Figure 19 is the schematic cross-section of the liquid trap of the utility model embodiment.
Figure 20 is the structural schematic diagram of the folded plate of the utility model embodiment.
In figure: 1, the first recovery unit；11, water scrubber；12, temperature adjustment is dried unit；13, cleaning solution purifier units；2,
Two recovery units；21, the first adsorption tanks；22, the second adsorption tanks；23, third adsorption tanks；24, separative unit；3, switch unit；
31, the first switching mechanism；32, the second switching mechanism；33, third switching mechanism；34, the first supervisor；35, the second supervisor；301,
First valve；302, the second valve；303, the first branch pipe；304, the second branch pipe；305, switching valve；306, blower；307, first
Ripple damping tube；308, the second ripple damping tube；4, pretreatment unit；41, the first pretreatment unit；42, the second pretreatment is single
Member；43, third pretreatment unit；401, drive end bearing bracket；402, rear end cap；403, filter screen；404, condenser；405, wind is cleaned
Case；406, cleaning steam pipeline；407, drip box；408, cleaning hole；409, direct hole；5, organic solvent recovery unit；51, it sprays
Drench mechanism；511, perfusion tube；512, sparge pipe；513, connecting tube；514, the first spray hole；515, the second spray hole；52, liquid collecting
Device；521, the first liquid collecting plate；5211, the first liquid barrier；5212, the first collecting tank；5213, the first extended segment；522, the second collection
Liquid plate；5221, the second liquid barrier；5222, the second collecting tank；5223, the second extended segment；523, collect pendular ring；53, demister；
531, silk screen layer；532, folded plate；533, silk screen layers of balls；54, filler；55, guard assembly；551, platform；552, ladder；56, shell
Body；561, the first process chamber；562, second processing room；563, third process chamber；564, fourth processing chamber.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the utility model, it should be noted that
Under the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new
Embodiment.
Referring to Fig.1, the air separator of oxygenerator of the present embodiment includes the first recovery unit 1, the second recovery unit 2 and cuts
Change unit 3.Optionally, air separator of oxygenerator further includes pretreatment unit 4, and the preprocessed flow direction of unit 4 of organic exhaust gas is cut
Change unit 3.Wherein, the first recovery unit 1 can be used for recycling the first solvent in organic exhaust gas, and the first solvent can be readily soluble
In the organic solvent of water, such as DMF；Second recovery unit 2 can be used for recycling the second solvent in organic exhaust gas, the second solvent
It can be the organic solvent for being not readily dissolved in water, such as toluene.Organic exhaust gas to be recycled can be simultaneously containing the first solvent and the
Two solvents can also only contain the second solvent.In other embodiments, the first solvent and the second solvent can be soluble in simultaneously
The organic solvent of water is the organic solvent for being not readily dissolved in water simultaneously, is returned respectively by the first recovery unit 1 and the second recovery unit 2
Receipts processing, the first recovery unit 1 can only be recycled the first solvent in organic exhaust gas and not to second in organic exhaust gas
Solvent has an impact, and the second recovery unit 2 can only be recycled the second solvent in organic exhaust gas.
Switch unit 3 includes switching mechanism, and switching mechanism is a kind of reversing mechanism, and switching mechanism is separately connected the first recycling
Unit 1 and the second recovery unit 2 are selectively to recycle organic exhaust gas from the first recovery unit of switching mechanism guiding 1 or second
Unit 2, the second recovery unit 2 connect the first recovery unit 1 to recycle to the organic exhaust gas being discharged from the first recovery unit 1
Processing.
Contain the first solvent (such as DMF) soluble easily in water simultaneously with the organic exhaust gas that production line is discharged and is not readily dissolved in water
The second solvent (such as toluene) for, switching mechanism by the organic exhaust gas be oriented to the first recovery unit 1, by the first recovery unit 1
With the second recovery unit 2 successively respectively in organic exhaust gas the first solvent and the second solvent be recycled.Wherein, first
Recovery unit 1 can be used for being recycled organic solvent soluble easily in water, and the second recovery unit 2 can be used for being recycled not
Organic solvent soluble easily in water.
By taking the organic exhaust gas of production line discharge only contains and is not readily dissolved in the second solvent (such as toluene) of water as an example, switching mechanism
The organic exhaust gas is oriented to the second recovery unit 2, only the second solvent in organic exhaust gas is recycled by the second recovery unit 2
Processing.
The air separator of oxygenerator of the present embodiment, can be according to organic exhaust gas to be processed by setting switch unit 3
Composition, the first recovery unit 1 or the second recovery unit 2 are selectively directing, to flexibly handle organic exhaust gas, for improving
The practicability of air separator of oxygenerator has important practical significance, it is only necessary to the organic waste handled by the second recovery unit 2
Gas simplifies treatment process and reduces processing cost without the first recovery unit 1.
Referring to Fig. 2, the switching mechanism of the air separator of oxygenerator of the present embodiment includes the first valve 301, the second valve
302, the first branch pipe 303 and the second branch pipe 304.Wherein, the air inlet of the air inlet of the first branch pipe 303 and the second branch pipe 304 connects
It passes to and enters for organic exhaust gas, the exhaust outlet of the first branch pipe 303 is connected to the air inlet of the first recovery unit 1, the second branch pipe 304
Exhaust outlet be connected to the air inlet of the second recovery unit 2, the first valve 301 is located on the first branch pipe 303 to control the first branch pipe
303 opening and closing, the second valve 302 are located at the opening and closing that the second branch pipe 304 is controlled on the second branch pipe 304.Switching mechanism is needed to select
When organic exhaust gas being oriented to selecting property the first recovery unit 1, opens the first valve 301 and close the second valve 302, organic exhaust gas
The first recovery unit 1 is flowed into through the first branch pipe 303.Need switching mechanism that organic exhaust gas is selectively oriented to the second recovery unit
When 2, opens the second valve 302 and close the first valve 301, organic exhaust gas flows into the second recovery unit 2 through the second branch pipe 304.
Referring to Fig. 3, the switching mechanism of the air separator of oxygenerator of the present embodiment includes switching valve 305, the first branch pipe
303 and second branch pipe 304.Wherein, the exhaust outlet of the first branch pipe 303 is connected to the air inlet of the first recovery unit 1, the second branch pipe
304 exhaust outlet is connected to the air inlet of the second recovery unit 2, and switching valve 305 is for being selectively oriented to first for organic exhaust gas
Branch pipe 303 or the second branch pipe 304.When needing switching mechanism that organic exhaust gas is selectively oriented to the first recovery unit 1, pass through
Organic exhaust gas is oriented to the first branch pipe 303 and flows into the first recovery unit 1 through the first branch pipe 303 by switching valve 305.Need switching machine
When organic exhaust gas is selectively oriented to the second recovery unit 2 by structure, organic exhaust gas is oriented to by the second branch pipe by switching valve 305
304 and through the second branch pipe 304 flow into the second recovery unit 2.
Referring to Fig. 4, the switch unit 3 of the air separator of oxygenerator of the present embodiment includes multiple switching mechanisms, this implementation
Example is described so that switch unit 3 includes the first switching mechanism 31, the second switching mechanism 32 and third switching mechanism 33 as an example,
In, the first organic exhaust gas flows to the first switching mechanism 31 through the first pretreatment unit 41, and the second organic exhaust gas is through the second pretreatment
Unit 42 flows to the second switching mechanism 32, and third organic exhaust gas flows to third switching mechanism 33 through third pretreatment unit 43.Often
A switching mechanism is separately connected the first recovery unit 1 and the second recovery unit 2 selectively to access each switching mechanism
Organic exhaust gas is oriented to the first recovery unit 1 or the second recovery unit 2, the first recycling of the second recovery unit 2 connection from switching mechanism
Unit 1 is to be recycled the organic exhaust gas being discharged from the first recovery unit 1.The air separator of oxygenerator of the present embodiment
It can flexibly handle identical by forming of being discharged of a plurality of production line or form different organic exhaust gas, be returned for improving organic exhaust gas
The practicability of receiving apparatus has important practical significance.
Referring to Fig. 5, the switch unit 3 of the air separator of oxygenerator of the present embodiment is similar with the switch unit 3 in Fig. 4,
Its difference is that the switch unit 3 of the present embodiment further includes the first supervisor 34 and the second supervisor 35,34 connection first of the first supervisor
The air inlet of recovery unit 1, the air inlets of 35 the second recovery units 2 of connection of the second supervisor, each switching mechanism are separately connected the
One supervisor 34 and the second supervisor 35 are with the organic exhaust gas that selectively accesses each switching mechanism from switching mechanism guiding first
Supervisor 34 or the second supervisor 35.The air separator of oxygenerator of the present embodiment is responsible for 35 by the first supervisor of setting 34 and second,
It not only contributes to that the organic exhaust gas of the first recovery unit 1 of guiding, the second recovery unit 2 is made to pass through the first supervisor 34, second respectively
Supervisor 35 is collected, and subsequent recovery processing is convenient for, and can be reduced and be connected to the first recovery unit 1, second recycling list
The pipeline of member 2, convenient for the arrangement of pipeline, the connection of pipeline is succinct, compact.
Referring to Fig. 6, the structure of air separator of oxygenerator of air separator of oxygenerator and Fig. 5 of the present embodiment is similar,
Its difference is, in the air separator of oxygenerator of the present embodiment, the second supervisor 35 of exhaust outlet connection of the first recovery unit 1.
The air separator of oxygenerator of the present embodiment can be further reduced the pipeline being connected on the second recovery unit 2, the company of pipeline
It connects more succinct, compact.
Fig. 7 is the structural schematic diagram of the air separator of oxygenerator of the utility model another embodiment, which returns
Receiving apparatus can be used for handling organic exhaust gas or organic exhaust gas only containing toluene containing DMF and toluene, which returns
Receiving apparatus includes the first recovery unit 1, the second recovery unit 2 and switch unit 3, and optionally, the air separator of oxygenerator is also
It dries unit 12, cleaning solution purifier units 13 and separative unit 24 including pretreatment unit 4, temperature adjustment.Wherein, the first recovery unit
1 includes water scrubber 11, and the second recovery unit 2 includes the first adsorption tanks 21, the second adsorption tanks 22 and third adsorption tanks 23, pretreatment
4 connection switching unit 3 of unit, switch unit 3 connect water scrubber 11 and the first adsorption tanks 21, the second adsorption tanks 22, third simultaneously
Adsorption tanks 23, temperature adjustment, which is dried, unit 12 while connecting water scrubber 11 and the first adsorption tanks 21, the second adsorption tanks 22, third adsorption tanks
23 are oriented to the first adsorption tanks 21, the second adsorption tanks 22, third with the organic exhaust gas that water scrubber 11 is discharged after temperature adjustment is dried inhales
Attached tank 23, the cleaning solution that cleaning solution purifier units 13 are used to that water scrubber 11 to be discharged carry out purification processes, and separative unit 24 is used for
The desorption liquid that first adsorption tanks 21, the second adsorption tanks 22, third adsorption tanks 23 are discharged is separated and is purified.
By taking the treatment process containing DMF and the organic exhaust gas of toluene as an example, the preprocessed flow direction of unit 4 switching of organic exhaust gas
Organic exhaust gas is oriented to water scrubber 11 by unit 3, switch unit 3, and water scrubber 11 elutes the DMF in organic exhaust gas, is washed
The washed purification of liquid purifier units 13 of liquid obtains DMF liquid, and the organic exhaust gas containing toluene that water scrubber 11 is discharged is gone through temperature adjustment
Enter adsorption tanks after wet unit 12, the activated carbon adsorption layer in adsorption tanks adsorbs toluene, tail gas discharge, activated carbon adsorption
Enter desorption program after layer adsorption saturation, desorption liquid enters separative unit 24 and is isolated to toluene liquid.
By taking the treatment process of organic exhaust gas only containing toluene as an example, the preprocessed flow direction of unit 4 switching of organic exhaust gas is single
Member 3, organic exhaust gas is oriented to adsorption tanks by switch unit 3, and the activated carbon adsorption layer in adsorption tanks adsorbs toluene, tail gas row
Out, desorption program is entered after activated carbon adsorption layer adsorption saturation, desorption liquid enters separative unit 24 and is isolated to toluene liquid.
It should be noted that the switching mechanism in Fig. 4, Fig. 5, Fig. 6 and Fig. 7 can use switching as shown in Figure 2 or Figure 3
Mechanism.
The pretreatment unit 4 of the utility model specific embodiment, switching mechanism, organic solvent are recycled with reference to the accompanying drawing
Unit 5, spraying mechanism 51, liquid trap 52 are described.
Referring to Fig. 8 and Fig. 9, the pretreatment unit 4 for organic exhaust gas recycling includes the drive end bearing bracket entered for organic exhaust gas
401, rear end cap 402, filter screen 403, multiple condensers 404 and at least one cleaning bellows 405.
Wherein, drive end bearing bracket 401, multiple condensers 404 and rear end cap 402 are set gradually along the flow direction of organic exhaust gas,
The temperature of organic exhaust gas such as can be down to about 40 from about 110 DEG C for reducing the temperature of organic exhaust gas by multiple condensers 404
DEG C, while multiple condensers 404 can also remove the oil of the silica gel in organic exhaust gas, each condenser 404 is equipped with cooling water inlet
And cooling water outlet, the cooling water after heat exchange can be reused.Preferably, pretreatment unit 4 further includes cleaning steam pipe
Line 406 and multiple drip boxs 407, cleaning steam pipeline 406 connect multiple condensers 404 to clean to condenser 404, often
The lower section of a condenser 404 is correspondingly arranged on a drip box 407, and multiple drip boxs 407 connect oil-drain pipe, are attached to condenser
The impurity such as the silica gel oil on 404 can fall off from condenser 404 when cleaning steam pipeline 406 is cleaned, through 407 He of drip box
Oil-drain pipe discharge, to keep the clean and with higher heat exchange efficiency of condenser 404.
Filter screen 403 removes solid impurity, such as cloth hair impurity between drive end bearing bracket 401 and rear end cap 402.Preferably
Ground, filter screen 403 are removably disposed on drive end bearing bracket 401, which, which can facilitate, removes filter screen 403 afterwards clearly
It washes, improves its filter effect and service life, filter screen 403 is located at the side of neighbouring multiple condensers 404 of drive end bearing bracket 401,
First removing solid impurity can prevent solid impurity from arranging to condenser 404.Each cleaning bellows 405 are located at two neighboring condensation
To check and clean condenser 404 between device 404, cleaning bellows 405 can use hollow structure, and people can enter, and facilitate inspection
The clean situation of condenser 404 is looked into, while condenser 404 can manually be cleaned without removing condenser 404.This reality
The pretreatment unit 4 for applying example is integrated by filter screen 403, condenser 404 and cleaning bellows 405, is conducive to reduction equipment and accounts for
Use space.
Optionally, drive end bearing bracket 401 and/or rear end cap 402 are equipped with cleaning hole 408, and people can be entered by cleaning hole 408
It is cleaned with the inside to pretreatment unit 4, it is convenient that impurity at drive end bearing bracket 401 and rear end cap 402 is cleared up.Front end
Lid 401 is equipped with direct hole 409, and in shutdown or maintenance, by opening direct hole 409, can facilitate will be in pretreatment unit 4
Gas emptying, in order to subsequent operation.
Figure 10 is the structural schematic diagram that the pretreatment unit 4 of the utility model embodiment is connect with switching mechanism, this implementation
The switching mechanism of example includes the first valve 301, the second valve 302, the first branch pipe 303 and the second branch pipe 304.
Wherein, the air inlet of the air inlet of the first branch pipe 303 and the second branch pipe 304 is connected to for organic exhaust gas entrance, the
The exhaust outlet of one branch pipe 303 is used to be connected to the air inlet of the first recovery unit 1, and the exhaust outlet of the second branch pipe 304 is for connection the
The air inlet of two recovery units 2, the first valve 301 be located on the first branch pipe 303 with control the first branch pipe 303 opening and closing, second
Valve 302 is located at the opening and closing that the second branch pipe 304 is controlled on the second branch pipe 304.
Referring to Fig.1 0, switch unit 3 further includes blower 306, and the exhaust outlet of blower 306 is connected to the air inlet of the first branch pipe 303
Mouthful and the second branch pipe 304 air inlet, by pretreatment unit 4, treated that organic exhaust gas is arranged to the first branch pipe 303, second
Branch pipe 304.It is provided with the variable frequency adjustment device (not shown) for controlling air quantity on blower 306, by the way that variable frequency adjustment device is arranged, makes
Blower 306 is more energy efficient and more accurately controls air quantity.Preferably, switch unit 3 further includes the first ripple damping tube 307 and the second wave
Line damping tube 308, the first ripple damping tube 307 are respectively communicated with the exhaust outlet of blower 306, the air inlet of the first branch pipe 303 and
The air inlet of two branch pipes 304, the second ripple damping tube 308 are connected to the air inlet of blower 306, the first ripple damping tube 307 and the
Two ripple damping tubes 308 can be the stainless steel ripple vibration damping pipe of No leakage, by the way that the first ripple damping tube 307 and second is arranged
Ripple damping tube 308 improves the resiliency of the air inlet of blower 306 and the junction of exhaust outlet, prolongs the service life.
Preferably, the exhaust ports of blower 306 are provided with the sealing valve of the exhaust orifice open/close for controlling blower 306 (not
It shows).Sealing valve can be high-performance sealed dish valve, and it is other can to ensure that no organic exhaust gas flows backward back for mistake setting sealing valve together
The board being not keyed up.
In an alternative embodiment, the first valve 301 and the second valve 302 replace with switching valve 305, and switching valve 305 is used
It can be set in organic exhaust gas is selectively oriented to the first branch pipe 303 or the second branch pipe 304, switching valve 305 in blower 306
The air inlet of exhaust outlet and the first branch pipe 303, the second branch pipe 304 air inlet between, also can be set in the first branch pipe 303
Air inlet and the second branch pipe 304 air inlet junction.
1 and Figure 12 referring to Fig.1, organic solvent recovery unit 5 can be the water scrubber 11 in Fig. 7.Organic solvent recycling is single
Member 5 includes shell 56 for recycling the organic solvent (such as DMF) soluble easily in water in organic exhaust gas, organic solvent recovery unit 5
Be located at shell 56 in spraying mechanism 51 and liquid trap 52, optionally, organic solvent recovery unit 5 further include demister 53,
Filler 54 and guard assembly 55.
Referring to Fig.1 1, in the present embodiment, shell 56 be divided into from bottom to top the first process chamber 561, second processing room 562,
Third process chamber 563 and fourth processing chamber 564, three liquid traps 52 are located at the bottom of second processing room 562, at third
Manage the bottom of the bottom of room 563, fourth processing chamber 564, the top of the first process chamber 561, the top of second processing room 562, the
The top of three process chambers 563 and the top of fourth processing chamber 564 are respectively arranged with spraying mechanism 51, the first process chamber 561 to
Filler 54 can be respectively set in the bottom of four process chambers 564, and filler 54 is located at indoor 52 top of liquid trap of each processing, shell
56 bottom is provided with the air inlet (not shown) entered for the organic exhaust gas containing organic solvent, and the top of shell 56 is provided with confession
The exhaust outlet (not shown) of organic exhaust gas discharge.
Optionally, the bottom of shell 56 is equipped with for storing four that the first process chamber 561 to fourth processing chamber 564 is discharged
Reservoir (not shown), three liquid traps 52 are respectively communicated with three reservoirs, four reservoirs respectively with four spraying mechanisms 51
Water circulation is constituted, known technology can be used in structure and reservoir and liquid trap 52, the connection structure of spraying mechanism 51 of reservoir,
It will not be described here.
Referring to Fig.1 3 to Figure 16, spraying mechanism 51 includes perfusion tube 511 and multiple sparge pipes 512, multiple sparge pipes 512
It is arranged and is respectively communicated with perfusion tube 511 along the length direction spacing side by side of perfusion tube 511, each sparge pipe 512 is along sparge pipe 512
Length direction be provided with multiple spray holes.With it is existing using the spray equipment of screw spraying mode compared with, the present embodiment
Spraying mechanism 51 equably conveys liquid to multiple sparge pipes 512 by perfusion tube 511, and is sprayed by spray hole, this cloth
The cloth liquid mode of liquid pipe classification homogenizing, the liquid of sprinkling is more uniform, is not easy to splash and be atomized, to be recycled in organic exhaust gas
The rate of recovery of organic solvent is higher, is not easy to be discharged from the exhaust outlet of shell 56.
In Figure 13, the tie point of each sparge pipe 512 and perfusion tube 511 is located at each sparge pipe 512 along its length
Midpoint, the amount of liquid for spraying multiple spray holes in each sparge pipe 512 it is more uniform with it is consistent.
Referring to Fig.1 4, spraying mechanism 51 further includes connecting tube 513, and connecting tube 513 is connected to perfusion tube 511 with to perfusion tube
Midpoint of the tie point of 511 supply liquid, connecting tube 513 and perfusion tube 511 adjacent to perfusion tube 511 along its length, to make
In perfusion tube 511 along its length everywhere in amount of liquid it is more uniform.In the present embodiment, connecting tube 513 is the company of U-shaped structure
Adapter tube 513, the both ends of connecting tube 513 are respectively communicated with perfusion tube 511, the both ends of connecting tube 513 and the tie point of perfusion tube 511
The two sides at the midpoint of perfusion tube 511 along its length are located at, are provided with inlet on the tube body of connecting tube 513, can be passed through
The inlet of connecting tube 513 is connected to across the pipeline of shell 56 to supply liquid to connecting tube 513.
Multiple spray holes of 5 and Figure 16 referring to Fig.1, sparge pipe 512 are divided into multiple groups spray along the length direction of sparge pipe 512
Fluid apertures, every group of spray hole include the first spray hole 514 and the second spray hole 515 of the same radial section positioned at sparge pipe 512,
First spray hole 514 of every group of spray hole and the hydrojet direction of the second spray hole 515 are backwards to sparge pipe 512 and 511 shape of perfusion tube
At plane.The center of the line at the center of the first spray hole 514 and radial section and the second spray hole 515 and radial section
Line shape in an angle, in the present embodiment, which is acute angle, to guarantee that spraying mechanism 51 in shell 56 sprays downwards
Spill liquid.
Preferably, spray hole of the sparge pipe 512 of spraying mechanism 51 using different dimensions, wherein the first process chamber
The hydrojet bore dia of the sparge pipe 512 of 561 spraying mechanism 51 is greater than second processing room 562, third process chamber 563 and the everywhere
The hydrojet bore dia of the sparge pipe 512 of the spraying mechanism 51 of room 564 is managed, organic exhaust gas is flowed from the bottom of shell 56 to top
During dynamic, the concentration of organic exhaust gas reduces step by step, and the sparge pipe 512 of the spraying mechanism 51 of the first process chamber 561 selects big straight
The amount of liquid of the spray hole of diameter, the sprinkling of the first process chamber 561 is big, and the organic solvent to be recycled in organic exhaust gas is as far as possible first
Process chamber 561 is recycled, the spray of the spraying mechanism 51 of second processing room 562, third process chamber 563 and fourth processing chamber 564
Liquid pipe 512 selects the spray hole of minor diameter, and the concentration of the amount of liquid and organic exhaust gas that make the sprinkling of spraying mechanism 51 matches, from
And the liquid of sprinkling is made to be fully used.First spray hole of the sparge pipe 512 of the spraying mechanism 51 of the first process chamber 561
514 and second spray hole 515 diameter be 7mm~8mm when, second processing room 562, third process chamber 563 and fourth processing chamber
When first spray hole 514 of the sparge pipe 512 of 564 spraying mechanism 51 and the diameter of the second spray hole 515 are 5mm~6mm, spray
The liquid spilt is droplet-like, is not easy to splash and be atomized, organic solvent recovery unit 5 has preferable recovery efficiency.
8 and Figure 19 referring to Fig.1, liquid trap 52 is for for gas to pass through, and in the present embodiment, liquid trap 52 is located at organic solvent
In the shell 56 of recovery unit 5, for passing through for organic exhaust gas.Liquid trap 52 includes collection pendular ring 523, multiple first liquid collecting plates
521 and multiple second liquid collecting plates 522.
Multiple first liquid collecting plates 521 extend in a first direction in the horizontal plane and spacing side by side setting is with for gas to pass through,
Each first liquid collecting plate 521 includes the first liquid barrier 5211 and the first collecting tank 5212, and the first liquid barrier 5211 upwards prolong by inclination
It stretches, 5212 connected set pendular ring 523 of the first collecting tank is simultaneously located at the lower part of the first liquid barrier 5211 to converge from the first liquid barrier
5211 liquid flowed down.
Multiple second liquid collecting plates 522 extend in a first direction in the horizontal plane and spacing side by side setting is with for gas to pass through,
Each second liquid collecting plate 522 includes the second liquid barrier 5221 and the second collecting tank 5222, and the second liquid barrier 5221 upwards prolong by inclination
It stretches, 5222 connected set pendular ring 523 of the second collecting tank is simultaneously located at the lower part of the second liquid barrier 5221 to converge from the second liquid barrier
5221 liquid flowed down.
The inclined direction of first liquid barrier 5211 and the inclined direction of the second liquid barrier 5221 intersect, in other words, first gear
The inclined direction of non-parallel second liquid barrier 5221 of the inclined direction of liquid plate 5211, so that multiple first liquid collecting plates 521 and multiple
The gas of second liquid collecting plate 522 is not flowed toward same direction, all the same with the inclined direction of all water fenders of existing liquid trap
Setting compare, using the liquid trap 52 of the present embodiment, gas will not flow after passing through liquid trap 52 toward same direction, flowing side
To more dispersed, wall stream not will form, therefore can be improved the recovery efficiency of organic solvent recovery unit 5.
Preferably, the inclined direction of the first liquid barrier 5211 is vertical with the inclined direction of the second liquid barrier 5221, by more
The left side of the gas flow first direction of a first liquid collecting plate 521 passes through the gas flow first party of multiple second liquid collecting plates 522
To right side, disperse the flow direction of gas more, further increase the recovery efficiency of organic solvent recovery unit 5.
Referring to Fig.1 9, the top of the first liquid barrier 5211 is located at the first collecting tank of the first adjacent liquid barrier 5211
5212 top, the top of the second liquid barrier 5221 are located at the upper of the second collecting tank 5222 of the second adjacent liquid barrier 5221
Side, guarantees that the liquid to drip down can be collected by the first liquid collecting plate 521 and the second liquid collecting plate 522.
The top of first liquid barrier 5211 is provided with the first extended segment 5213, and the first extended segment 5213 is from the first liquid barrier
5211 top extends downwardly, and the lower end of the extended segment of the first liquid barrier 5211 is located at the first of the first adjacent liquid barrier 5211
The top of collecting tank 5212.The top of second liquid barrier 5221 is provided with the second extended segment 5223, and the second extended segment 5223 is from
The top of two liquid barriers 5221 extends downwardly, and the lower end of the extended segment of the second liquid barrier 5221 is located at the second adjacent liquid barrier
The top of 5221 the second collecting tank 5222.Drop is further ensured that by the first extended segment 5213 of setting, the second extended segment 5223
The liquid to get off can be collected by the first liquid collecting plate 521 and the second liquid collecting plate 522.
Referring to Fig.1 1, organic solvent recovery unit 5 includes multiple liquid traps 52, and multiple liquid traps 52 are setting up and down, adjacent
The first direction of two liquid traps 52 is respectively X-direction and the direction Y, and X-direction and Y-direction are intersected, preferably, X-direction and the side Y
To vertical.For example, the first liquid collecting plate 521 and the second liquid collecting plate 522 of the liquid trap 52 in second processing room 562 are in horizontal plane
On extend along north-south, the first liquid collecting plate 521 and the second liquid collecting plate 522 of the liquid trap 52 in third process chamber 563 are in level
Extend on face along East and West direction, the first liquid collecting plate 521 and the second liquid collecting plate that gas passes through the liquid trap 52 in second processing room 562
The east side and west side in second processing room 562 are substantially flowed to after 522 respectively, gas passes through the liquid trap in third process chamber 563
The southern side and north side in third process chamber 563 are substantially flowed to after 52 the first liquid collecting plate 521 and the second liquid collecting plate 522 respectively, on
It states and is provided with conducive to gas Uniform Flow and mixed flow in the shell 56 of organic solvent recovery unit 5, an effluent will not be only oriented towards
Dynamic and formation wall stream, to improve recovery efficiency.
1 and Figure 20 referring to Fig.1, demister 53 is located in shell 56 and the exhaust outlet of neighbouring shell 56, demister 53 include
Silk screen layer 531, folded plate 532 and the silk screen layers of balls 533 successively stacked from bottom to top, folded plate 532 are formed by connecting by multiple hang plates
And it is provided with multiple ventilation holes.In the demister 53, folded plate 532 can increase the contact area with gas, and wind speed is lower, folded plate
532 are conducive to liquid accumulation, form liquid and flow downward along folded plate 532, silk screen layer 531 and silk screen layers of balls 533 can remove
Foam, to improve the defogging effect of demister 53.
Referring to Fig.1 2, guard assembly 55 includes multiple platforms 551 and multiple ladders 552, and multiple platforms 551 are along shell 56
Short transverse is set in turn on the outer wall of shell 56, is provided with a ladder 552 between two neighboring platform 551, and adjacent two
Extending direction of a ladder 552 in the short transverse of shell 56 is staggered, and in other words, two neighboring ladder 552 is in shell 56
Short transverse on extending direction not on the same line.Platform can also be further added between two neighboring platform 551
551.Compared with the design that existing all platforms 551 are each provided on a straight line and are connected by a ladder 552, this implementation
The distance between two neighboring platform 551 is smaller in the guard assembly 55 of example, will not directly fall when people falls from ladder 552
The bottom of shell 56 is dropped down onto, but on the platform 551 of adjacent lower section, to improve safety.
It will be apparent to those skilled in the art that can make various other according to the above description of the technical scheme and ideas
Corresponding change and deformation, and all these changes and deformation all should belong to the protection of the utility model claims
Within the scope of.
Claims (10)
1. a kind of switch unit for VOCs treatment, the air inlet of processing unit is connected to the exhaust of the first recovery unit
Mouthful, the processing unit is the second recovery unit, which is characterized in that the switch unit includes switching mechanism, the switching machine
Structure includes the first valve, the second valve, the first branch pipe and the second branch pipe, the air inlet of first branch pipe and second branch pipe
Air inlet connection for organic exhaust gas entrance, the exhaust outlet of first branch pipe be used to be connected to first recovery unit into
Port, the exhaust outlet of second branch pipe are used to be connected to the air inlet of the processing unit, and first valve is located at described the
The opening and closing of first branch pipe is controlled on one branch pipe, second valve is located on second branch pipe to control described second
The opening and closing of branch pipe.
2. switch unit according to claim 1, which is characterized in that the switch unit includes the first supervisor, the second master
Pipe and multiple switching mechanisms, first supervisor are respectively communicated with the air inlet and the multiple switching machine of first recovery unit
The exhaust outlet of first branch pipe of structure, second supervisor are respectively communicated with air inlet, the multiple switching machine of the processing unit
The exhaust outlet of the exhaust outlet of second branch pipe of structure and first recovery unit.
3. switch unit according to claim 1, which is characterized in that the switch unit further includes blower, the blower
Exhaust outlet be connected to the air inlet of first branch pipe and the air inlet of second branch pipe, be provided on the blower for controlling
The variable frequency adjustment device of air quantity processed.
4. switch unit according to claim 3, which is characterized in that the switch unit further includes the first ripple damping tube
With the second ripple damping tube, the first ripple damping tube be respectively communicated with the exhaust outlet of the blower, first branch pipe into
The air inlet of port and second branch pipe, the second ripple damping tube are connected to the air inlet of the blower.
5. switch unit according to claim 3, which is characterized in that the exhaust ports of the blower are provided with for controlling
The sealing valve of the exhaust orifice open/close of the blower.
6. a kind of switch unit for VOCs treatment, the air inlet of processing unit is connected to the exhaust of the first recovery unit
Mouthful, the processing unit is the second recovery unit, which is characterized in that the switch unit includes switching mechanism, the switching machine
Structure includes switching valve, the first branch pipe and the second branch pipe, and the exhaust outlet of first branch pipe is for being connected to first recovery unit
Air inlet, the exhaust outlet of second branch pipe is used to be connected to the air inlet of the processing unit, and the switching valve is for selecting
Organic exhaust gas is oriented to property first branch pipe or second branch pipe.
7. switch unit according to claim 6, which is characterized in that the switch unit includes the first supervisor, the second master
Pipe and multiple switching mechanisms, first supervisor are respectively communicated with the air inlet and the multiple switching machine of first recovery unit
The exhaust outlet of first branch pipe of structure, second supervisor are respectively communicated with air inlet, the multiple switching machine of the processing unit
The exhaust outlet of the exhaust outlet of second branch pipe of structure and first recovery unit.
8. switch unit according to claim 6, which is characterized in that the switch unit further includes blower, the blower
Exhaust outlet be connected to the air inlet of first branch pipe and the air inlet of second branch pipe, be provided on the blower for controlling
The variable frequency adjustment device of air quantity processed.
9. switch unit according to claim 8, which is characterized in that the switch unit further includes the first ripple damping tube
With the second ripple damping tube, the first ripple damping tube be respectively communicated with the exhaust outlet of the blower, first branch pipe into
The air inlet of port and second branch pipe, the second ripple damping tube are connected to the air inlet of the blower.
10. switch unit according to claim 8, which is characterized in that the exhaust ports of the blower are provided with for controlling
Make the sealing valve of the exhaust orifice open/close of the blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820422938.6U CN208302476U (en) | 2018-03-27 | 2018-03-27 | Switch unit for VOCs treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820422938.6U CN208302476U (en) | 2018-03-27 | 2018-03-27 | Switch unit for VOCs treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208302476U true CN208302476U (en) | 2019-01-01 |
Family
ID=64720542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820422938.6U Expired - Fee Related CN208302476U (en) | 2018-03-27 | 2018-03-27 | Switch unit for VOCs treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208302476U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112076584A (en) * | 2020-07-31 | 2020-12-15 | 苏州巨联环保有限公司 | High-temperature high-humidity gas whitening component and method and DMF (dimethyl formamide) and toluene recovery device |
| US20220260290A1 (en) * | 2019-07-19 | 2022-08-18 | Daikin Industries, Ltd. | Refrigeration device and oil cooling device |
-
2018
- 2018-03-27 CN CN201820422938.6U patent/CN208302476U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220260290A1 (en) * | 2019-07-19 | 2022-08-18 | Daikin Industries, Ltd. | Refrigeration device and oil cooling device |
| CN112076584A (en) * | 2020-07-31 | 2020-12-15 | 苏州巨联环保有限公司 | High-temperature high-humidity gas whitening component and method and DMF (dimethyl formamide) and toluene recovery device |
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| GR01 | Patent grant | ||
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Granted publication date: 20190101 |