CN207462989U - Purifier containing methanol waste gas - Google Patents
Purifier containing methanol waste gas Download PDFInfo
- Publication number
- CN207462989U CN207462989U CN201721237736.6U CN201721237736U CN207462989U CN 207462989 U CN207462989 U CN 207462989U CN 201721237736 U CN201721237736 U CN 201721237736U CN 207462989 U CN207462989 U CN 207462989U
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- Prior art keywords
- spray
- waste gas
- pipeline
- containing methanol
- methanol waste
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Abstract
The utility model provides a kind of purifier containing methanol waste gas, and including housing, spray washing device, ultraviolet photolysis device, demister are equipped with successively in housing；It is closed between the spray washing device, ultraviolet photolysis device, demister and accommodating cavity inner wall.The utility model purifier containing methanol waste gas, the mass transfer surfaces continuously contacted with using filler wetting surface as gas-liquid carry out absorption removal using double films effect between gas-liquid two-phase to methanol waste gas；Methanol is continued to decompose using ultraviolet light and catalyst, improves the ability for decomposing methanol.In the utility model, baffle plate and catch box can use the liquid circulation of trapping, can also save the use of ejecting liquid.
Description
Technical field
The utility model discloses a kind of purifier containing methanol waste gas, available for carrying out purified treatment to methanol in tail gas,
Belong to volatile organic matter pollution control technology field.
Background technology
Methanol is important Organic chemical products, for manufacturing a variety of organic products such as formaldehyde, sour acid, chloromethanes, simultaneously
It can also be used instead of gasoline as fuel.
Under normal circumstances, methanol production/using enterprise is using all-sealed integral manufacturing technique, the discharge of methanol waste gas
Amount is smaller；But the exhaust gas that methanol tank Big and Small Breath generates is generally uncontrollable discharge situation.The relevant technologies political affairs are formulated in country
In the case of plan control VOCs pollutions, methanol tank exhaust gas must be collected effectively and carry out purification treatment.
Methanol tank exhaust gas is mainly derived from the Big and Small Breath loss of breather valve.When methanol tank is fed, due to liquid in tank
Body volume increases, and gas pressure increases in tank；When pressure increases to breather valve pressure limit, breather valve automatically turns on exhaust, i.e.,
Suction and discharge are called out for storage tank；It is higher that storage tank calls out the exhaust gas concentration that suction is put.Make tank inside due to the variation of environment temperature
Liquid material is converted to gaseous state, this part material steam is discharged into air, the as small breathing of storage tank by breather valve；The small breathing of storage tank
The exhaust gas concentration of discharge is relatively low.
Common processing method containing methanol waste gas has combustion method, absorption+adsorption combined method, WATER-WASHING METHOD etc..Combustion method by
To methanol production/use factory of enterprise condition influence；Methanol content is still higher in absorption+adsorption combined method and water scrubber tail gas, still
It need to carry out purified treatment.
Utility model content
For defect in the prior art, the utility model provides a kind of purifier containing methanol waste gas.To reach
To above-mentioned purpose, the utility model adopts the following technical scheme：
A kind of purifier containing methanol waste gas, the housing including carrying air inlet and gas outlet, enclosure interior have receiving sky
Chamber, accommodating cavity is between air inlet and gas outlet.
Along air inlet to gas outlet direction, it is equipped with spray washing device successively in the accommodating cavity, ultraviolet photolysis fills
It puts, demister；It is closed between the spray washing device, ultraviolet photolysis device, demister and accommodating cavity inner wall.
Wherein, the spray washing device include pump, packing area, by the pipeline of the fluid pumped out feeding packing area, to filling out
Expect that area sprays into the nozzle of fluid, the nozzle is connected on pipeline.
In an advantageous embodiment, the spray washing device can be level-one or multi-stage spray wash mill, at different levels
Spray washing apparatus structure can be identical or different, and preferably identical.
In an advantageous embodiment, the pipeline includes the first spray piping and the second spray piping, the first spray tube
Road extends along the packing area surface, and the direction of the first spray piping towards packing area is equipped with one or more and is preferably more
A nozzle；Second spray piping is arranged at the top of packing area, and the second spray piping is equipped with the nozzle direction described in one or more
Packing area.Preferably, above-mentioned arbitrary level-one spray washing device uses pipeline described in this preferred embodiment.
Preferably, there are gaps between nozzle and packing area.
It is highly preferred that spray washing devices at different levels can be that setting pump, partial common one pump or all share one respectively
A pump.
The pipeline includes internal pipeline and external pipe, and external pipe includes main pipeline, the first branch pipe(tube), the second branch pipe
Road；Wherein, main pipeline is connected to pump；Internal pipeline includes first spray piping and the second spray piping, wherein, first
Pipeline connects the first spray piping, and the second branch pipe(tube) connects the second spray piping.
In the case of a pump is shared, pipeline includes internal pipeline and external pipe, outside spray washing devices at different levels
Pipeline includes main pipeline, the first branch pipe(tube), the second branch pipe(tube)；Wherein, spray washing device main pipelines at different levels are connected to shared
Pump is parallel to a total pipeline, and total pipeline is connected to shared pump；Internal pipeline includes first spray piping and second
Spray piping, wherein, the first branch pipe(tube) connects the first spray piping, and the second branch pipe(tube) connects the second spray piping.
In an advantageous embodiment, the ultra violet light emitter can at least emit the ultraviolet of 185nm and/or 254nm
Light.
In more preferred embodiment, the ultraviolet photolysis device includes ultra violet light emitter and catalyst bed, the catalysis
Agent such as titanium dioxide.
Wherein, it is highly preferred that at least partially uv optical transmitting set is to catalyst bed emitting ultraviolet light.
In a kind of more preferred embodiment, the ultraviolet photolysis device includes multi-layer catalyst bed, in every layer of catalyst bed
Side and/or lower section are equipped with ultra violet light emitter, and the ultra violet light emitter can be tubulose and/or laminated structure, along catalyst
The extension of bed surface.
In an advantageous embodiment, the demister includes multiple baffle plates, and gap is formed between each baffle plate.
Each baffle plate can be laminated or be arranged side by side, and be preferably arranged side by side.
Wherein, the baffle plate can be preferably at least part and be corrugated sheet, can also be at least part surface equipped with convex
The texture or the two for playing baffle or protrusion exist simultaneously.
In a kind of more preferred embodiment, the demister further includes bottom diversion trench, for collecting baffle plate trapping
Liquid.
In an advantageous embodiment, the purifier containing methanol waste gas further includes catch box, it is preferable that the liquid collecting
Case is located at hull outside.
It is highly preferred that catch box connection demister leakage fluid dram, for example, diversion trench connection catch box or
The catch box is directly connected below baffle plate.
It is highly preferred that the catch box is connected to the pump.
In a kind of more preferred embodiment, the catch box further includes liquid supplementation pipe and/or drain pipe.
Wherein, the drain pipe preferably comprises overflow pipe and blow-off pipe, and the overflow pipe is located above default liquid level, institute
Blow-off pipe is stated to be located at below default liquid level, and be preferably located at catch box bottom.
It is highly preferred that the catch box further includes liquid level gauge.
In more preferred embodiment, the catch box further includes purifier, such as filter, absorber, sterilizer, derusting
Device etc..
In a kind of preferred embodiment of the utility model, the purifier containing methanol waste gas further includes PLC control system,
The PLC control system connects and controls spray washing device, on ultraviolet photolysis device, catch box liquid supplementation pipe and/or drain pipe
Valve in any one or several working conditions.
As PLC system can control the working condition of pump, spray washing install pipes upper each valve working condition, control
The work of the working condition of ultra violet light emitter processed, catch box liquid supplementation pipe valve working state, and/or catch box drain tube valve
State etc..
Relative to the prior art, the technical solution of the utility model has the advantages that：
1) the utility model purifier containing methanol waste gas, the mass transfer continuously contacted with using filler wetting surface as gas-liquid
Surface carries out absorption removal using double films effect between gas-liquid two-phase to methanol waste gas；
2) the utility model purifier containing methanol waste gas using ultraviolet photogenerated ozone, has extremely strong oxygen to methanol
Change acts on, in addition, ultraviolet light can be with Direct Pyrolysis methanol；The utility model can also be aided with catalyst, and catalyst is ultraviolet
Reactive group is generated under light, methanol is continued to decompose, improves the ability for decomposing methanol；
3) in the utility model, baffle plate and catch box can use the liquid circulation of trapping, can save ejecting liquid
Use.
Description of the drawings
Fig. 1 is the utility model purifier containing methanol waste gas perspective structure schematic diagram；
Fig. 2 is the utility model purifier containing methanol waste gas overlooking the structure diagram.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected range.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instructions such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
The utility model must have specific with the device or element for simplifying description rather than instruction or hint meaning for ease of description
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally
Connection；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, can above-mentioned art be understood with concrete condition
Concrete meaning of the language in the utility model.
Referring to Figures 1 and 2, the utility model purifier containing methanol waste gas, including carrying air inlet 1 and gas outlet 6
Housing 8 has accommodating cavity inside housing 8, and accommodating cavity is between air inlet 1 and gas outlet 6.
In accommodating cavity, along air inlet 1 to the direction of gas outlet 6, successively equipped with spray washing device, ultraviolet photolysis
Device 4, demister 5.In the utility model by taking two-stage spray washing device as an example, i.e. level-one spray washing device 2 and two level
Spray washing device 3, but the utility model is not limited to this two-stage spray washing device.
As shown in Fig. 2, level-one spray washing device 2 and two level spray washing device 3 share a pump 9, sprays at different levels are washed
It washs device and includes external pipe and internal pipeline, 2 external pipe of level-one spray washing device includes the first order spray of connection pump
Washing main pipeline 20, first branch pipe(tube) 210 and the second branch pipe(tube) 220 in 20 downstream of first order spray washing main pipeline.With reference to figure
1, the internal pipeline of level-one spray washing device 2 includes the first spray piping 21 connected with the first branch pipe(tube) 210 and with the
Two branch pipe(tube)s 220 connect the second spray piping 22.
Level-one spray washing device 2 further includes packing area, and packing area surrounding is closed with inner air inner wall, so that exhaust gas is only
It can pass through from packing area.First spray piping 21 is located at the top of packing area, and 21 end sprayer of the first spray piping can be one
It is or multiple；Second spray piping 22 extends along packing area surface, and the second spray piping 22 is provided with the nozzle of packing area.
Each nozzle has gap with packing area surface, in favor of expanding spray area.
Equally, 3 external pipe of two level spray washing device includes the second level spray washing main pipeline 30, second of connection pump
First branch pipe(tube) 310 and the second branch pipe(tube) 320 in 30 downstream of grade spray washing main pipeline.The inside of two level spray washing device 3
Pipeline includes the first spray piping 31 connected with the first branch pipe(tube) 310 and connects the second spray tube with the second branch pipe(tube) 320
Road 32.First spray piping 31 is located at the top of packing area, and 31 end sprayer of the first spray piping can be one or more；Second
Spray piping 32 extends along packing area surface, and the second spray piping 32 is provided with the nozzle of packing area.Each nozzle with
Packing area surface has gap, in favor of expanding spray area.
Filler is high-efficient purification filler, and ejecting liquid sprays at the top of filler with side in level-one spray washing device 2, fills out
The surface of material wetting becomes the mass transfer surfaces that gas-liquid continuously contacts with, and absorbs removal first using double films effect between gas-liquid two-phase
Alcohol.Gas after a spray washing enters two level spray washing device 3.Similar, spray washing two level spray washing dress
Putting the filler surface in 3 becomes the mass transfer surfaces that gas-liquid continuously contacts with, and is absorbed again using double films effect between gas-liquid two-phase
Remove methanol.
It should be understood that exhaust gas can be independently in level-one spray washing device 2 and two level spray washing device 3
Ground is cross-flow spray (i.e. ejecting liquid flowing is opposite with gas flow direction) or fair current spray (i.e. ejecting liquid flowing and gas
Flow direction is identical).
The spray washing device is connected with PLC control system, is controlled by PLC control system.
Gas after two-stage spray washing enters ultraviolet photolysis device 4, and ultraviolet photolysis device 4 includes ultraviolet light generator
(such as electrodeless UV lamp pipe) can send out 185nm and 254nm ultraviolet lights, and it is smelly that the utility model can utilize 185 nanometer ultraviolet rays to generate
Oxygen, ozone have extremely strong oxidation to methanol, come Oxidation of Methanol generation carbon dioxide and water.254 nanometers of purples are utilized simultaneously
The high-energy of outside line cracks and Oxidation of Methanol, generates carbon dioxide and water.
Ultraviolet photolysis device 4 can also include titanium deoxide catalyst bed, and catalyst bed can be that multilayer is set, each layer
Surface is equipped with ultraviolet light generator above and/or under catalyst bed, is generated using 254 nanometer ultraviolet rays irradiation titanium deoxide catalyst
The active secondary oxidant such as hydroxyl carrys out Oxidation of Methanol, ultimately generates carbon dioxide and water.
Therefore, in the utility model, under the synergistic effect of oxidant and ultraviolet light oxygenolysis persistently occurs for methanol, most
Throughout one's life into carbon dioxide and water.
The ultraviolet photolysis device 4 is connected with PLC control system, is controlled by PLC control system.
The demister 5 uses baffle type mist eliminator, including baffle plate 50 arranged side by side.
It is for gas to pass through that gap is formed between baffle plate 50, the gap between the gas containing water mist enters baffle plate 50
When, water mist collides with baffle plate 50 and is attached to baffling plate surface, and drop gradually becomes larger, until under the effect of gravity from baffling
50 surface of plate detaches and slides.Baffle plate can be at least partially corrugated sheet, can also be that at least part surface is equipped with
The texture or the two of raised baffle or protrusion exist simultaneously, and this being folded to structure increases the chance that water mist is captured more, from
And improve demisting efficiency.
Catch box 7 is further included in the lower section of housing 8, catch box 7 includes water tank, liquid level gauge, water supply solenoid valve, draining electromagnetism
Valve (is equipped with overflow port, sewage draining exit is equipped at lower water level) at upper water level.
Catch box 7 is communicated to pump 9 by pipeline, in addition, 5 lower section connection catch box 7 of mechanical demister, by demister
The liquid that baffle plate 50 traps in 5.The catch box includes the cyclic water tank and is set on waste gas purification apparatus lower part.The liquid level
Controller, water supply solenoid valve, drain solenoid valve are connected with PLC control system.There can also be filter cleaning dress in catch box 7
It puts, the liquid of collection is recycled by pump 9.It need not separately set water tank for spray washing device in this way.
In catch box fluid low or it is excessively high when, liquid level gauge sends a signal to PLC control system, PLC control system moisturizing
Solenoid valve, drain solenoid valve work.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should
Understand：It can still modify to the technical solution recorded in foregoing embodiments either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacement, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of purifier containing methanol waste gas, which is characterized in that the housing including carrying air inlet and gas outlet, enclosure interior
There is accommodating cavity, accommodating cavity is between air inlet and gas outlet；Wherein：
Along air inlet to gas outlet direction, it is equipped with spray washing device successively in the accommodating cavity, ultraviolet photolysis device, removes
Mist device；It is closed between the spray washing device, ultraviolet photolysis device, demister and accommodating cavity inner wall.
2. purifier containing methanol waste gas according to claim 1, which is characterized in that the spray washing device includes
Pump, packing area, the pipeline that the fluid pumped out is sent into packing area, the nozzle to packing area penetrating fluid, the nozzle are connected to
On pipeline.
3. purifier containing methanol waste gas according to claim 2, which is characterized in that the pipeline includes the first spray tube
Road and the second spray piping, the first spray piping extend along the packing area surface, and the first spray piping is towards the side of packing area
To equipped with one or more nozzles；Second spray piping is arranged at the top of packing area, the second spray piping set there are one or
Multiple nozzles are towards packing area.
4. purifier containing methanol waste gas according to claim 3, which is characterized in that the pipeline include internal pipeline and
External pipe, external pipe include main pipeline, the first branch pipe(tube), the second branch pipe(tube)；Wherein, main pipeline is connected to pump；Inner tube
Road includes first spray piping and the second spray piping, wherein, the first branch pipe(tube) connects the first spray piping, the second branch pipe
Road connects the second spray piping.
5. purifier containing methanol waste gas according to claim 3, which is characterized in that the spray washing device is multistage
Spray washing device, spray washing devices at different levels can be that setting pump, partial common one pump or all share one respectively
Pump；
In the case of sharing a pump, the pipeline includes internal pipeline and external pipe, spray washing device exterior tubes at different levels
Road includes main pipeline, the first branch pipe(tube), the second branch pipe(tube)；Wherein, spray washing device main pipelines at different levels are connected to shared pump,
Or a total pipeline is parallel to, total pipeline is connected to shared pump；Internal pipeline includes first spray piping and the second spray
Shower pipe road, wherein, the first branch pipe(tube) connects the first spray piping, and the second branch pipe(tube) connects the second spray piping.
6. purifier containing methanol waste gas according to claim 1, which is characterized in that ultra violet light emitter can at least be sent out
Penetrate the ultraviolet light of 185nm and/or 254nm.
7. purifier containing methanol waste gas according to claim 6, which is characterized in that the ultraviolet photolysis device includes purple
Outer optical transmitting set and catalyst bed, at least partially uv optical transmitting set is to catalyst bed emitting ultraviolet light.
8. purifier containing methanol waste gas according to claim 1, which is characterized in that the demister include it is multiple simultaneously
The baffle plate of setting is arranged, forms gap between each baffle plate, baffle plate at least partially corrugated sheet or at least part surface are set
The texture or the two for having raised baffle or protrusion exist simultaneously.
9. purifier containing methanol waste gas according to claim 2, which is characterized in that the purifier containing methanol waste gas
Catch box is further included, the catch box connects demister leakage fluid dram, and is connected to pump.
10. purifier containing methanol waste gas according to claim 9, which is characterized in that state catch box further include liquid supplementation pipe,
Drain pipe, purifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721237736.6U CN207462989U (en) | 2017-09-26 | 2017-09-26 | Purifier containing methanol waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721237736.6U CN207462989U (en) | 2017-09-26 | 2017-09-26 | Purifier containing methanol waste gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207462989U true CN207462989U (en) | 2018-06-08 |
Family
ID=62270023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721237736.6U Expired - Fee Related CN207462989U (en) | 2017-09-26 | 2017-09-26 | Purifier containing methanol waste gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207462989U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952913A (en) * | 2018-07-09 | 2018-12-07 | 利辛县江淮扬天汽车有限公司 | A kind of automotive energy-saving emission-reducing tail gas filtering processing unit |
| CN110479095A (en) * | 2019-09-04 | 2019-11-22 | 爱润森德（天津）能源科技有限公司 | A kind of VOCs processing system and processing method suitable for methanol fueling station |
| CN110772952A (en) * | 2019-11-07 | 2020-02-11 | 江苏三一环境科技有限公司 | Photocatalytic washing system |
-
2017
- 2017-09-26 CN CN201721237736.6U patent/CN207462989U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952913A (en) * | 2018-07-09 | 2018-12-07 | 利辛县江淮扬天汽车有限公司 | A kind of automotive energy-saving emission-reducing tail gas filtering processing unit |
| CN110479095A (en) * | 2019-09-04 | 2019-11-22 | 爱润森德（天津）能源科技有限公司 | A kind of VOCs processing system and processing method suitable for methanol fueling station |
| CN110772952A (en) * | 2019-11-07 | 2020-02-11 | 江苏三一环境科技有限公司 | Photocatalytic washing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180608 Termination date: 20200926 |