CN208236484U - Spiral electrode plasma body cooperative wood-fibred filter core purification diesel engine exhaust apparatus - Google Patents
Spiral electrode plasma body cooperative wood-fibred filter core purification diesel engine exhaust apparatus Download PDFInfo
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- CN208236484U CN208236484U CN201820550600.9U CN201820550600U CN208236484U CN 208236484 U CN208236484 U CN 208236484U CN 201820550600 U CN201820550600 U CN 201820550600U CN 208236484 U CN208236484 U CN 208236484U
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- filter core
- wood
- fibred
- filtering body
- filtering
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Abstract
The utility model relates to a kind of spiral electrode plasma body cooperative wood-fibred filter core purification diesel engine exhaust apparatus, it includes filtering body and plasma producing apparatus.Filtering body is made of pod, preceding sealing cover, multi-layer cylinder shape wood-fibred filter core, rear sealing cover etc..Plasma producing apparatus uses dielectric barrier discharge technology, filters chamber enclosure bonding, and cylindric quartz glass tube is close to filtering chamber interior walls, and glass tube is spiral shape high-field electrode.Filtering body is placed in plasma producing apparatus, under the premise of guaranteeing filtering body and coaxial plasma producing apparatus, seals the rear sealing cover of filtering body and filter chamber's discharge coupling.Whole device is placed in the lower region of exhaust system temperature, diesel exhaust gas flows on the outside of filter core through pod, then flows into internal cavities by filter core outer surface, and then flow out gas outlet；When diesel exhaust gas flows through the device, plasma removes denitrification, and wood-fibred filter element filtering particulate matter is to realize purification.
Description
Technical field:
The utility model belongs to a kind of nitrogen oxides (NOX) and carbon soot particles (PM) purification device, plasma generator with
Wood-fibred filter core synergistic effect, can be main by wood-fibred filter element filtering carbon soot particles by plasma for purification nitrogen oxides
It is used for the purification of Emissions.
Background technique:
In recent years, the pollutant of automotive diesel exhaust and ship discharge has become the master in addition to industrial enterprise's pollution
Want the source of atmospheric pollution.China in 2016 sets up Pollution From Ships emission control area for the first time, and has issued " engine of boat and ship exhaust pollution
Object emission limit and measurement method (Chinese first and second stage) "；Come into effect within 2017 national 5th stage vehicular pollutant
Discharge standard, wherein diesel vehicle emission limits of nitrogen oxides be 0.18g/km, particle concentration emission limit 0.0045g/km, because
This, is badly in need of effective purification device.The predominant emissions that automotive diesel exhaust, ship atmosphere discharge are PM, NOxAnd vulcanization
Object.Currently, commonly the effective means of removal PM is particle trapper.The particle trapper of mainstream is in cordierite honeycomb ceramic
Or silicon carbide applies noble metal catalyst, but the sulphur in diesel exhaust gas can make metal poisoning fail, and manufacture it is complicated,
The accumulation of higher cost, PM causes exhaust back pressure to increase.Wood-fibred is high due to having the adsorption efficiency to carbon soot particles, and price is low
It is honest and clean, it is easy to process, exhaust back pressure is small the features such as, be remove PM ideal material.The study found that low temperature plasma is going to denitrogenate
There is highly significant efficiency in terms of oxide, and dielectric barrier discharge technology is to generate low temperature plasma most under normal temperature and pressure
One of effective means.Dielectric barrier discharge is a kind of nonequilibrium state gas discharge for having dielectric insertion discharge space.This dress
It sets and earthing pole is done using shell bonding, inside connects high-field electrode, and the mode for being inserted into dielectric quartz glass tube between the two is realized.
Utility model content
The utility model relates to a kind of spiral electrode plasma body cooperative wood-fibred filter core purification diesel engine exhaust apparatus,
It includes filtering body and plasma producing apparatus.Filtering body by pod, preceding sealing cover, multi-layer cylinder shape wood-fibred filter core,
End cover etc. forms afterwards.Plasma producing apparatus uses dielectric barrier discharge, filters chamber enclosure bonding, cylindric quartz glass
Glass pipe is close to filtering chamber interior walls, and glass tube is high-field electrode.High-field electrode is to twine the copper wire of diameter 2mm from intermediate doubling
Spirally-wound, screw diameter are the halfs of glass bore and filtering body outer diameter summation.Filtering body is placed in plasma
In body generating device, under the premise of guaranteeing that filtering body, plasma producing apparatus are coaxial, make the rear sealing cover and mistake of filtering body
The sealing of filter chamber discharge coupling.Entire purification device is placed in the lower region of delivery temperature.Diesel exhaust gas is flowed into through pod
Plasma generating region on the outside of filter core, then internal cavities are penetrated by filter core outer surface, and then be discharged by gas outlet；Work as diesel oil
When machine exhaust flows through the device, plasma removes denitrification, and wood-fibred filter element filtering particulate matter is final to realize diesel engine row
Gas purification.After filtering body reaches operating limit, according to the replacement filter core of the actual conditions selectivity of different size of filter core.
Detailed description of the invention
Fig. 1 is the filter structure schematic diagram of diesel exhaust gas purifying device, sealing cover, 3 different-diameters before 1 pod, 2
Cylindrical filter element, sealing cover, 5 annular grooves after 4.
Fig. 2 is plasma producing apparatus structural schematic diagram, 6 insulating electrode interfaces, 7 drive end bearing brackets, 8 flanges, 9 cylinder-shaped mistakes
Filter chamber shell, 10 quartz glass tubes, 11 helical form high-field electrodes.
Specific embodiment:
It, will be with a thickness of 0.05-1mm, width 1-10mm, length 30-50mm by metal net at skeleton inside and outside cylindrical shape
Long wood-fibred be put among inside and outside skeleton, the cylindrical filter element with a thickness of 7mm is made, is stayed between filter core and shell between 20mm
Gap.Make other filter cores in an identical manner again, filter core thickness is constant, and filter core diameter is on the basis of manufactured filter core diameter
First-class difference reduces, and adjacent filter core spacing 5-7mm minimum filter core internal diameter is identical as gas outlet diameter.The filling rate of filter core wood-fibred with
The reduction of diameter and increase, the low filter element filtering bulky grain of filling rate, the high filter element filtering little particle of filling rate.
Sealing cover thickness 0.3mm has the annular groove more slightly larger than filter core diameter thereon to limit the position of filter core, will make
Good filter core is inserted into preceding sealing cover and the corresponding annular groove of rear sealing cover, and preceding sealing cover places pod.
Filter chamber is cylindrical shape, and shell bonding uses flanged joint, in front end as earthing pole between drive end bearing bracket and shell
Lid installs insulating electrode interface away from punching at air inlet edge 30mm, and filter chamber's inserting thickness is the quartz glass tube of 2mm,
Outer wall is fitted closely with filter chamber's outer casing inner wall.
High-field electrode is by diameter 2mm copper wire from intermediate doubling, it is therefore an objective to the magnetic field of energization helix generation is eliminated, it is right
The spacing of two parts copper wire is 3mm after folding, then winds spiral, screw pitch 12mm, screw diameter is filtering body outer diameter and stone
The half of English glass bore summation, is connected to insulating electrode interface.
Filtering body is placed in inside plasma producing apparatus, coaxial in guarantee filtering body and plasma producing apparatus
Under the premise of, seal the rear sealing cover of filtering body and filter chamber's discharge coupling.The purification device for installing filtering body is placed in bavin
The lower region of oil machine delivery temperature, diesel exhaust gas flow on the outside of filtering body through pod, the plasma reaction with generation
Afterwards, internal cavities are penetrated by filtering external surface, and then flows out gas outlet, realize the purification of nitrogen oxides and particulate matter.
Claims (3)
1. spiral electrode plasma body cooperative wood-fibred filter core purification diesel engine exhaust apparatus, it is characterized in that: it includes filtering
Body and plasma producing apparatus；Filtering body is by pod, preceding sealing cover, multi-layer cylinder shape wood-fibred filter core, rear end cover
Composition；Plasma producing apparatus is made of helical form high-field electrode, cylindrical quartz glass tube and filter chamber's bonding shell；It will
Filtering body is placed in inside plasma producing apparatus, under the premise of guaranteeing filtering body and coaxial plasma producing apparatus, is made
The rear sealing cover and filter chamber's discharge coupling of filtering body seal；Entire purification device is placed in the lower area of exhaust system temperature
Domain.
2. spiral electrode plasma body cooperative wood-fibred filter core purification diesel engine exhaust apparatus according to claim 1,
It is characterized in that filtering body is made of multiple filter cores, filter core is packed into wood-fibred and circle is made by skeletal support inside and outside netted cylinder
Tubular filter core stays the gap of 20mm between filter core and shell；Make other filter cores in an identical manner again, filter core thickness is not
Become, filter core diameter on the basis of manufactured filter core diameter equal difference reduce, adjacent filter core spacing 5-7mm minimum filter core internal diameter with
Gas outlet diameter is identical；The filling rate of filter core wood-fibred increases, the low filter element filtering bulky grain of filling rate with the reduction of diameter,
Then each filter core is inserted into the corresponding annular groove of front and back sealing cover by the high filter element filtering little particle of filling rate.
3. spiral electrode plasma body cooperative wood-fibred filter core purification diesel engine exhaust apparatus according to claim 1,
It is characterized in that two-part spacing is 3mm after doubling, so by the high-field electrode of plasma producing apparatus from intermediate doubling
After wind spiral, screw pitch 12mm, screw diameter is the half of glass bore and filtering body outer diameter summation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820550600.9U CN208236484U (en) | 2018-04-18 | 2018-04-18 | Spiral electrode plasma body cooperative wood-fibred filter core purification diesel engine exhaust apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820550600.9U CN208236484U (en) | 2018-04-18 | 2018-04-18 | Spiral electrode plasma body cooperative wood-fibred filter core purification diesel engine exhaust apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208236484U true CN208236484U (en) | 2018-12-14 |
Family
ID=64583978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820550600.9U Expired - Fee Related CN208236484U (en) | 2018-04-18 | 2018-04-18 | Spiral electrode plasma body cooperative wood-fibred filter core purification diesel engine exhaust apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN208236484U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388247A (en) * | 2018-04-18 | 2019-10-29 | 东北林业大学 | Spiral electrode plasma body cooperative wood-fibred filter core purification diesel engine exhaust apparatus |
| CN111659209A (en) * | 2019-03-05 | 2020-09-15 | 东北林业大学 | Exhaust gas purification device of plasma wood fiber oil-fired boiler |
| CN112177709A (en) * | 2019-07-01 | 2021-01-05 | 东北林业大学 | Square electrode low-temperature plasma and wood fiber combined tail gas treatment device |
-
2018
- 2018-04-18 CN CN201820550600.9U patent/CN208236484U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388247A (en) * | 2018-04-18 | 2019-10-29 | 东北林业大学 | Spiral electrode plasma body cooperative wood-fibred filter core purification diesel engine exhaust apparatus |
| CN111659209A (en) * | 2019-03-05 | 2020-09-15 | 东北林业大学 | Exhaust gas purification device of plasma wood fiber oil-fired boiler |
| CN111659209B (en) * | 2019-03-05 | 2024-08-13 | 东北林业大学 | Smoke-discharging purifier for plasma wood fibre oil-burning boiler |
| CN112177709A (en) * | 2019-07-01 | 2021-01-05 | 东北林业大学 | Square electrode low-temperature plasma and wood fiber combined tail gas treatment device |
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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 |
Granted publication date: 20181214 Termination date: 20190418 |
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| CF01 | Termination of patent right due to non-payment of annual fee |