CN104005822B - Anti-explosion diesel engine heat insulation type exhaust gas cleaner - Google Patents
Anti-explosion diesel engine heat insulation type exhaust gas cleaner Download PDFInfo
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- CN104005822B CN104005822B CN201410223866.9A CN201410223866A CN104005822B CN 104005822 B CN104005822 B CN 104005822B CN 201410223866 A CN201410223866 A CN 201410223866A CN 104005822 B CN104005822 B CN 104005822B
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- main body
- shell
- inner shell
- mozzle
- heat insulation
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- 238000009413 insulation Methods 0.000 title claims abstract description 36
- 238000004880 explosion Methods 0.000 title claims abstract description 14
- 210000000476 body water Anatomy 0.000 claims abstract description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 38
- 229910052742 iron Inorganic materials 0.000 claims description 17
- 238000004901 spalling Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 17
- 239000010410 layer Substances 0.000 description 12
- 239000003054 catalyst Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 239000010948 rhodium Substances 0.000 description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 210000002159 anterior chamber Anatomy 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
A kind of anti-explosion diesel engine heat insulation type exhaust gas cleaner has forward flange, rear flange, housing and DOC core body, and the external stability of described forward flange has trocar sheath, and the rear portion of trocar sheath covers on the front portion of main body cover, trocar sheath and main body cover and connects for living；The trailing flank of forward flange is fixed an inner sleeve, main body cover extends to form forward cervical region, the rear portion of inner sleeve is inserted in the cervical region of main body cover, inner sleeve and main body cover connect for living, before main body, the front portion of inner shell and the rear portion of main body water conservancy diversion inner shell are overlapping, before main body, inner shell and main body water conservancy diversion inner shell connect for living, inner sleeve is provided with kuppe, between inner shell, there is interval after inner shell and main body before main body, DOC core body is clamped in before main body after inner shell and main body between inner shell, in body shell and be in the rear of DOC core body and be provided with mozzle, mozzle is provided with venthole facing to the cylinder of hemisphere cavity wall, mozzle is downwardly in lower house.The present invention favorably extends the service life of DOC core body and prevents housing spalling.
Description
Technical field
The present invention relates to diesel engine exhaust gas purification device.
Background technology
In underground coal mine machinery, anti-explosion diesel engine is wherein main a kind of power source.Anti-explosion diesel engine uses the particularity of environment due to it, causes that its emission level lags far behind normal diesel engine.Under mine, by the restriction of dash condition, the harmful gas that anti-explosion diesel engine is discharged can not spread timely so that tunnel air quality continuous decrease, and under serious harm ore deposit, staff's is healthy.China Patent No. be 200920103426.4 utility model patent disclose a kind of purifier for explosionproof diesel engine offgas, high temperature resistant heat insulation coating layer all it is coated with including outside the shell being made up of upper shell and lower house and the oxidized form catalytic cleaner core body being placed in shell, upper shell and lower house inwall and oxidized form catalytic cleaner core body；Upper shell and lower house two ends are respectively provided with ring flange, and the ring flange between upper shell with lower house is connected composition surface and sets up sealing gasket.China Patent No. be 200920093082.3 utility model patent disclose a kind of exhaust purification device for mining explosion-proof diesel, depurator core body it is provided with in insulated case, insulated case adopts Flange joint with hood, described depurator core body, adopt the precious metal material such as platinum, rhodium to make catalyst, under mesophilic condition the hydrocarbon in tail gas, oxygen are carried out chemical reaction, eliminate nuisance, to reduce the discharge of cigarette, dirt nuisance, tail gas is made to be purified.When above-mentioned catalytic oxidation exhaust gas cleaner (DOC) uses, tail gas is being heated inequality from depurator core body more intensively centrally through, the center of DOC core body and periphery, causes that DOC core body catalyst activity position utilization rate is low, have impact on the service life of DOC core body.It addition, the deformation of DOC core body expanded by heating, in use can there is enclosure interior weld seam spalling or DOC core body internal stress is excessive and the faults such as damage.
Summary of the invention
It is an object of the invention to propose a kind of favourable service life extending DOC core body and prevent the anti-explosion diesel engine heat insulation type exhaust gas cleaner of housing spalling.
For reaching above-mentioned purpose, the present invention adopts the following technical scheme that: this anti-explosion diesel engine heat insulation type exhaust gas cleaner has forward flange, rear flange, housing and DOC core body, housing is angle square shape, including body shell and lower house, the front portion of body shell is the cone with air inlet, the rear portion of body shell is hemisphere, body shell is made up of main body inner shell, main body cover and the main body thermal insulation layer that is between the inside and outside shell of main body, main body inner shell by inner shell before main body water conservancy diversion inner shell, main body and after main body inner shell form；The external stability of described forward flange has trocar sheath, and the rear portion of trocar sheath covers on the front portion of main body cover, trocar sheath and main body cover and connects for living；The trailing flank of forward flange is fixed an inner sleeve, main body cover extends to form forward cervical region, the rear portion of inner sleeve is inserted in the cervical region of main body cover, inner sleeve and main body cover connect for living, before main body, the front portion of inner shell and the rear portion of main body water conservancy diversion inner shell are overlapping, before main body, inner shell and main body water conservancy diversion inner shell connect for living, inner sleeve is provided with kuppe, the rear portion of kuppe is goed deep in body shell, between inner shell, there is interval after inner shell and main body before main body, DOC core body is clamped in before main body after inner shell and main body between inner shell, in body shell and be in the rear of DOC core body and be provided with mozzle, mozzle is provided with venthole facing to the cylinder of hemisphere cavity wall, mozzle extends downwardly from body shell, insert in lower house, rear flange is arranged on the lower end of mozzle.
The outer cylinder of described DOC core body is wrapped with the thickness sheet iron less than 1.8mm, the two ends of sheet iron are wider than DOC core body, the front end width section of sheet iron inserts in before main body between inner shell and main body thermal insulation layer, and the rear end width section of sheet iron inserts in after main body between inner shell and main body thermal insulation layer.
The air inlet place of described body shell is provided with heat insulation flange, and the rear portion of heat insulation flange is inserted in kuppe, and front portion is in forward flange.
Described lower house has lower casing and the lower thermal insulation layer being between lower casing and mozzle.
Body shell is interior and is between the end face of mozzle and the inner roof wall of body shell and is provided with elastic gusset.
The present invention has following good effect: 1, the tail gas that anti-explosion diesel engine is discharged is after kuppe taps, and flows uniformly through whole DOC core body, and DOC core body is heated evenly, and improves DOC core body catalyst activity position utilization rate, the favourable prolongation DOC core body life-span.2, owing to being all live in connecting before main body water conservancy diversion inner shell and main body between inner shell, between trocar sheath and body shell, between inner sleeve and body shell, there is provided degree of freedom for the expanded by heating on the axial direction of DOC core body, provide degree of freedom for the thermal expansion of whole body shell simultaneously.The outer cylinder of DOC core body is wrapped with the thickness sheet iron less than 1.8mm, when thermal expansion, sheet iron can expand simultaneously, sheet iron directly contacts with thermal insulation layer, thermal insulation layer has certain elasticity, expanded by heating in the radial direction for DOC core body provides degree of freedom, it is provided that DOC core body degree of freedom in the axial direction and degree of freedom diametrically can prevent housing spalling.3, owing to body shell rear portion is hemisphere, rear chamber is spherical cavity, can flow through the tail gas after DOC core body and flow into mozzle discharge, smooth gas discharge of the present invention after the refraction of hemisphere cavity wall.4, heat insulation flange is installed at the air inlet place of body shell, it is possible to avoid high-temperature tail gas directly to impact forward flange, makes forward flange place surface temperature meet peace mark requirement.
Accompanying drawing explanation
Fig. 1 is the structure chart of the present invention.
Fig. 2 is the A direction view of Fig. 1.
Fig. 3 is the C-C sectional view of Fig. 1.
Fig. 4 is the B-B sectional view of Fig. 1.
Fig. 5 is I enlarged drawing of Fig. 1.
Fig. 6 is II enlarged drawing of Fig. 1.
Fig. 7 is III enlarged drawing of Fig. 1.
Fig. 8 is kuppe view.
Fig. 9 is the side view of Fig. 8.
Inner shell after inner shell, 6-13. main body before 1. forward flanges, 2. inner sleeve, 3. heat insulation flange, 4. trocar sheath, 5. kuppe, 6. body shell in figure, 7.DOC core body, 8. sheet iron, 9. elastic gusset, 10. mozzle, 11. lower houses, 12. rear flanges, 6-1. main body inner shell, 6-2. main body cover, 6-3. main body thermal insulation layer, 6-11. main body water conservancy diversion inner shell, 6-12. main body.
Detailed description of the invention
Embodiment 1
See that Fig. 1 to Fig. 9, the present embodiment have on forward flange 1, rear flange 12, housing and DOC core body 7, DOC core body 7 and scribble the catalyst coat based on noble metal platinum and rhodium.Housing has body shell 6 and lower house 11, and the front portion of body shell 6 is the cone with air inlet, and rear portion is hemisphere, and correspondingly, the anterior chamber of body shell 6 is conical cavity, and rear chamber is hemispherical cavity.Body shell 6 is made up of main body inner shell 6-1, main body cover 6-2 and the main body thermal insulation layer 6-3 that is between the inside and outside shell of main body, main body inner shell 6-1 by inner shell 6-12 before main body water conservancy diversion inner shell 6-11, main body and after main body inner shell 6-13 form.
The external stability of described forward flange 1 has trocar sheath 4, the rear portion of trocar sheath 4 covers on the front portion of main body cover 6-2, the rear portion of trocar sheath 4 is tubaeform, and the inwall at tubaeform position and the shell 6-2 forward taper outer wall of body shell 6 are affixed, and trocar sheath 4 and main body cover 6-2 connect for living.
Fixing an inner sleeve 2 on the trailing flank of forward flange 1, main body cover 6-2 extends to form forward cervical region 6-21, and the rear portion of inner sleeve 2 is inserted in the cervical region 6-21 of main body cover 6-2, and inner sleeve 2 and main body cover 6-2 connect for living.
Before main body, the front portion of inner shell 6-12 and the rear portion of main body water conservancy diversion inner shell 6-11 are overlapping, and before main body, the front portion of inner shell 6-12 is inserted between rear portion and the thermal insulation layer of main body water conservancy diversion inner shell 6-11, and before main body, inner shell 6-12 and main body water conservancy diversion inner shell 6-11 connects for living.
Being provided with kuppe 5 in inner sleeve 2, the rear portion of kuppe 5 is goed deep in body shell 6, and the rear portion of kuppe 5 is evenly equipped with passage (see Fig. 8 and Fig. 9), and the passage 5-1 aperture on kuppe 5 bottom surface is little, and the passage 5-2 aperture on the face of cylinder is big.Kuppe 5 and inner sleeve 2 can be fixing connections, it is also possible to be live in connecting.Having interval between inner shell 6-13 after inner shell 6-12 and main body before main body, DOC core body 7 is clamped in before main body after inner shell 6-12 and main body between inner shell 6-13.The outer cylinder of described DOC core body 7 is wrapped with the thickness sheet iron 8 less than 1.8mm, the two ends of sheet iron 8 are wider than DOC core body 7, the front end width section of sheet iron 8 inserts in before main body between inner shell 6-12 and main body thermal insulation layer 6-3, and the rear end width section of sheet iron 8 inserts in after main body between inner shell 6-13 and main body thermal insulation layer 6-3.
In body shell 6 and be in the rear of DOC core body 7 and be provided with mozzle 10, mozzle 10 is provided with venthole 10-a facing to the cylinder of hemisphere cavity wall, and mozzle 10 extends downwardly from body shell 6, inserts in lower house 11, and rear flange 12 is arranged on the lower end of mozzle 10
The air inlet place of described body shell 6 is provided with heat insulation flange 3, and the rear portion of heat insulation flange 3 is inserted in kuppe 5, and front portion is in forward flange 1.
In described body shell 6 and be between end face and the inner roof wall of body shell of mozzle 10 and be provided with elastic gusset 9.Elastic gusset 9 can keep the stability of mozzle 10.
Described lower house 11 has lower casing 11-1 and the lower thermal insulation layer 11-2 being between lower casing 11-1 and mozzle 10.
Diesel engine vent gas through air inlet through heat insulation flange 3 and kuppe 5, flowed out by DOC core body 7, effect due to kuppe 5, tail gas flows uniformly through DOC core body 7, uniformly, the tail gas after purifying, then through the refraction by hemisphere cavity wall for DOC core-center and peripheral purification load and thermic load, flow into mozzle 10, finally flow out via gas outlet.
Before main body, inner shell 6-12 can slide by main body water conservancy diversion inner shell 6-11 relatively, and the axial thermal expansion for DOC core body 7 provides degree of freedom.Main body cover 6-2 is relative to inner sleeve 2, the equal slip of trocar sheath 4, and the thermal expansion for whole housing and heat-barrier material provides degree of freedom.The sheet iron 8 of DOC core body 7 can radial thermal expansion, for DOC core body 7 radial thermal expansion provide degree of freedom.
Claims (5)
1. an anti-explosion diesel engine heat insulation type exhaust gas cleaner, there is forward flange (1), rear flange (12), housing and DOC core body (7), it is characterized in that: housing is angle square shape, including body shell (6) and lower house (11), the front portion of body shell (6) is the cone with air inlet, the rear portion of body shell (6) is hemisphere, body shell (6) is by main body inner shell (6-1), main body cover (6-2) and be in main body, main body thermal insulation layer (6-3) composition between shell, main body inner shell (6-1) is by main body water conservancy diversion inner shell (6-11), inner shell (6-13) composition after inner shell (6-12) and main body before main body；The external stability of described forward flange (1) has trocar sheath (4), and the rear portion of trocar sheath (4) covers on the front portion of main body cover (6-2), trocar sheath (4) and main body cover (6-2) and connects for living；The trailing flank of forward flange (1) is fixed an inner sleeve (2), main body cover (6-2) extends to form forward cervical region (6-21), the rear portion of inner sleeve (2) is inserted in the cervical region (6-21) of main body cover (6-2), inner sleeve (2) and main body cover (6-2) connect for living, before main body, the front portion of inner shell (6-12) and the rear portion of main body water conservancy diversion inner shell (6-11) are overlapping, before main body, inner shell (6-12) and main body water conservancy diversion inner shell (6-11) connect for living, inner sleeve (2) is provided with kuppe (5), the rear portion of kuppe (5) is goed deep in body shell (6), between inner shell (6-13), there is interval after inner shell (6-12) and main body before main body, DOC core body (7) is clamped in before main body after inner shell (6-12) and main body between inner shell (6-13), in body shell (6) and be in the rear of DOC core body (7) and be provided with mozzle (10), mozzle (10) is provided with venthole (10-a) facing to the cylinder of hemisphere cavity wall, mozzle (10) extends downwardly from body shell (6), insert in lower house (11), rear flange (12) is arranged on the lower end of mozzle (10).
2. anti-explosion diesel engine heat insulation type exhaust gas cleaner according to claim 1, it is characterized in that: the outer cylinder of described DOC core body (7) is wrapped with the thickness sheet iron (8) less than 1.8mm, the two ends of sheet iron (8) are wider than DOC core body (7), the front end width section of sheet iron (8) inserts in before main body between inner shell (6-12) and main body thermal insulation layer (6-3), and the rear end width section of sheet iron (8) inserts in after main body between inner shell (6-13) and main body thermal insulation layer (6-3).
3. anti-explosion diesel engine heat insulation type exhaust gas cleaner according to claim 1, it is characterized in that: the air inlet place of described body shell (6) is provided with heat insulation flange (3), the rear portion of heat insulation flange (3) is inserted in kuppe (5), and front portion is in forward flange (1).
4. anti-explosion diesel engine heat insulation type exhaust gas cleaner according to claim 1, it is characterised in that: described lower house (11) has lower casing (11-1) and the lower thermal insulation layer (11-2) being between lower casing (11-1) and mozzle (10).
5. anti-explosion diesel engine heat insulation type exhaust gas cleaner according to claim 1, it is characterised in that: in body shell (6) and be between end face and the inner roof wall of body shell of mozzle (10) and be provided with elastic gusset (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410223866.9A CN104005822B (en) | 2014-05-23 | 2014-05-23 | Anti-explosion diesel engine heat insulation type exhaust gas cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410223866.9A CN104005822B (en) | 2014-05-23 | 2014-05-23 | Anti-explosion diesel engine heat insulation type exhaust gas cleaner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104005822A CN104005822A (en) | 2014-08-27 |
| CN104005822B true CN104005822B (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410223866.9A Active CN104005822B (en) | 2014-05-23 | 2014-05-23 | Anti-explosion diesel engine heat insulation type exhaust gas cleaner |
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| CN (1) | CN104005822B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033222A (en) * | 2014-06-30 | 2014-09-10 | 清华大学苏州汽车研究院（吴江） | Tail gas purifying device of explosion-proof diesel engine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3822944A1 (en) * | 1988-07-07 | 1990-01-11 | Leistritz Ag | Exhaust gas catalyst |
| EP1464800A1 (en) * | 2003-04-02 | 2004-10-06 | 3M Innovative Properties Company | Exhaust system component having insulated double wall |
| CN201433807Y (en) * | 2009-06-22 | 2010-03-31 | 山西永恒机械制造有限公司 | Purifier for explosionproof diesel engine offgas |
| CN203891981U (en) * | 2014-05-23 | 2014-10-22 | 常州科研试制中心有限公司 | Heat-insulating-type tail gas purifying device of anti-explosion diesel engine |
| CN104033222A (en) * | 2014-06-30 | 2014-09-10 | 清华大学苏州汽车研究院（吴江） | Tail gas purifying device of explosion-proof diesel engine |
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2014
- 2014-05-23 CN CN201410223866.9A patent/CN104005822B/en active Active
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| CN104005822A (en) | 2014-08-27 |
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Address after: No. 56 Palm Road, Zhonglou District, Changzhou City, Jiangsu Province, 213000 Patentee after: CHANGZHOU DEVELOPMENT & MANUFACTURE CENTER Co.,Ltd. Address before: No. 180 Xinshi Road, Zhonglou District, Changzhou City, Jiangsu Province, 213002 Patentee before: CHANGZHOU DEVELOPMENT & MANUFACTURE CENTER Co.,Ltd. |