CN109339927A - A kind of cartridge type exhaust aftertreatment encapsulation external thermal insulation heat insulation structural - Google Patents
A kind of cartridge type exhaust aftertreatment encapsulation external thermal insulation heat insulation structural Download PDFInfo
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- CN109339927A CN109339927A CN201811241494.7A CN201811241494A CN109339927A CN 109339927 A CN109339927 A CN 109339927A CN 201811241494 A CN201811241494 A CN 201811241494A CN 109339927 A CN109339927 A CN 109339927A
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- Prior art keywords
- heat
- heat shield
- thermal insulation
- external thermal
- cylinder
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Silencers (AREA)
Abstract
The present invention relates to a kind of cartridge type exhaust aftertreatments to encapsulate external thermal insulation heat insulation structural, belongs to exhaust aftertreatment encapsulating structure technical field.External thermal insulation heat insulation structural of the invention includes cylinder, heat-preservation cotton and heat shield, heat shield is filled the span of a man's arms by two clam shells and is welded in post-processing drum surface in the form of flange before and after formula, three transverse directions and two walings are provided on heat shield, horizontal and vertical reinforcing rib is tightly attached on cylinder, on one side to in-flanges, to guarantee that two clam shell heat shields connect welding, the gap location of heat shield and cylinder is filled with heat-preservation cotton, the heat preservation with guarantee to cleaning module.The present invention is designed to two panels heat shield a kind of heat shield of structure; post-processing can be kept the temperature; it can play the role of thermal insulation protection to engine Surrounding Parts again; full cylinder heat preservation is carried out to post-processing; heat insulation effect is good, can satisfy different vehicle factors and requires the entrucking arrangement of post-processing assembly.
Description
Technical field
The invention belongs to exhaust aftertreatment encapsulating structure technical fields, and in particular to a kind of cartridge type exhaust aftertreatment encapsulation is outer
Heat insulation structure.
Background technique
In the automobile cold vehicle stage, since automobile catalyst is not up to the initiation temperature of redox reaction, so catalyst
Activity it is poor, transformation efficiency is low.The initiation temperature of usual automobile catalyst is 250 ~ 350 DEG C, normal working temperature 400
~800℃.The cold vehicle stage, since cylinder wall is colder, incomplete combustion and generate the harmful substances such as a large amount of CO, HC.In general, I
When detecting tail gas, be all detected with hot vehicle idling, but this detection method be it is not rigorous, because of cold vehicle stage emission
Harmful substance account for 50% or more of entire discharge phase, and the operating condition of emission level and engine is closely bound up, suddenly steps on oil
Incomplete combustion will be such that the discharge of harmful substance increases when door, this is not reflected when being idling detection.As discharge is marked
Quasi- more and more harsh, relevant department has appreciated that the discharge in cold vehicle stage, and is included in detection range, so that after to tail gas
Processing requirement is higher and higher.
The development trend of engine is high power per liter, energy conservation and environmental protection at present.High power per liter means that the unit time enters gas
The air mass flow of cylinder increases, and the fuel combustion that the unit time sprays into cylinder is more abundant, and explosion pressure and delivery temperature can be significant
It improves.Clarifier cylinder is influenced by high-temperature exhaust air, and surface temperature even can achieve 800 DEG C or more, after-treatment system week
Cloth sets a large amount of rubber, plastic part, and high temperature can make these part agings and loss of function, will lead to automobile when serious certainly
Combustion, heat shield can be with effective protection after-treatment system Surrounding Parts.
Generally use two methods at this stage to reduce cold vehicle stage emission, a kind of method is started with from catalyst, adjustment
The formula of catalyst formulation, especially co-catalyst, to reduce the initiation temperature of catalyst, so that catalyst is in relative low temperature
Under environment can efficient cleaning of off-gas, but still have very big bottleneck, initiation temperature be maintained at 250 DEG C or less it is highly difficult.So
Often start at this stage from encapsulating structure, increases insulation construction on corresponding encapsulating structure, after-treatment system is enable quickly to rise
Temperature.
Core structure frequently with insulation construction be external thermal insulation and internal insulation structure.Heat-insulated bell-type internal insulation structure has following
Several disadvantages: 1, interior heat shield will be filled in encapsulation cylinder body, and welding surface only has one end can be carried out to be fully welded, and the other end not can be carried out full
Weldering is easy heat insulation foam to blow out, influences heat insulation effect and catalyst to the treatment effect of tail gas as air-flow enters；2, it is interior every
Heat cover only serves heat insulation effect, and cylinder outer layer also needs to increase heat shield protection vehicle supporting part；3, interior heat shield can only be into
The heat preservation of row shell portion, and outer heat shield can be carried out full cylinder heat preservation, heat insulation effect is substantially better than inside holding.
Summary of the invention
Technical problem to be solved by the present invention lies in view of the above shortcomings of the prior art, provide a kind of cartridge type tail gas
Post-processing encapsulation external thermal insulation heat insulation structural.The external thermal insulation heat insulation structural can either keep the temperature after-treatment system, and can be right
Engine Surrounding Parts play the role of thermal insulation protection, and the two is combined into one, and are designed to a kind of structure, save the cost, Neng Gouman
Sufficient CNG cartridge type state six is to the heat preservation of heat shield, heat-insulated and post-processing entrucking reliability requirement.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: a kind of cartridge type exhaust aftertreatment encapsulation is outer to be protected
Warm heat insulation structural, which is characterized in that the external thermal insulation heat insulation structural has the feature that
A kind of cartridge type exhaust aftertreatment encapsulates external thermal insulation heat insulation structural, including cylinder, heat-preservation cotton and heat shield, the heat shield with
Two clam shells flange form before and after formula of filling the span of a man's arms is welded in post-processing drum surface.
Cross reinforcing and waling are provided on the heat shield.
The number of the cross reinforcing is three or more, and the number of waling is two or more.
The transverse reinforcing tendons and longitudinal reinforcing tendons are tightly attached on cylinder.
The heat shield is on one side to in-flanges, to guarantee that two clam shell heat shields connect welding.
The gap location of the heat shield and cylinder is filled with heat-preservation cotton.
Compared with the prior art, the present invention has the following advantages:
(1) present invention can keep the temperature after-treatment system and play thermal insulation protection to engine Surrounding Parts and make
With the two is combined into one, and is designed to a kind of structure, carries out full cylinder heat preservation to after-treatment system, heat insulation effect is more preferable, while energy
Enough effectively save the costs.
(2) present invention can overcome interior heat shield to fill in encapsulation cylinder body, and only one end welding surface, which can be carried out, is fully welded,
The other end cannot be fully welded, and air-flow is easy the deficiency that heat insulation foam is blown out, and better reliability can satisfy different vehicle factors to rear place
The entrucking for managing assembly, which is arranged, to be required.
(3) structure of the invention is compact to design, and outside does not need to be further added by heat shield, space has effectively been saved, two
Piece heat shield is designed to a kind of heat shield of structure, only need to make two panels heat shield using a secondary stamping die, be effectively saved
Mold opening cost.
Technical solution of the present invention is described in further detail below by the drawings and specific embodiments.
Detailed description of the invention
Fig. 1 is the axonometric drawing of external thermal insulation heat insulation structural heat shield of the present invention.
Fig. 2 is the main view of external thermal insulation heat insulation structural of the present invention.
Fig. 3 is the A-A view of external thermal insulation heat insulation structural of the present invention.
Description of symbols: 1. cylinders；2. heat-preservation cotton；3. heat shield；4. cross reinforcing；5. waling.
Specific embodiment
A kind of cartridge type exhaust aftertreatment encapsulation external thermal insulation heat insulation structural, including cylinder 1, heat-preservation cotton 2 and heat shield 3, it is described
Heat shield 3 is filled the span of a man's arms by two clampshells and is welded in post-processing 1 surface of cylinder before and after formula in the form of flange.
Cross reinforcing 4 and waling 5 are provided on the heat shield 3, to guarantee heat shield mode and intensity.
The number of the cross reinforcing 4 is three, and the number of waling 5 is two.
The cross reinforcing 4 and waling 5 are tightly attached on cylinder 1, with guarantee post-processing entrucking be fixed on every
Strength reliability requirement after heat cover is upper.
Described 3 one side of heat shield is to in-flanges, to guarantee that two clam shell heat shields 3 connect welding.
The gap location of the heat shield 3 and cylinder 1 is filled with heat-preservation cotton 2, to guarantee the heat preservation to cleaning module.
The above is only presently preferred embodiments of the present invention, is not intended to limit the invention in any way.It is all according to the present invention
Essence any simple modification, change and equivalence change to the above embodiments, still fall within technical solution of the present invention
In protection scope.
Claims (6)
1. a kind of cartridge type exhaust aftertreatment encapsulates external thermal insulation heat insulation structural, including cylinder (1), heat-preservation cotton (2) and heat shield (3),
It is characterized in that, the heat shield (3) is filled the span of a man's arms by two clam shells is welded in post-processing cylinder (1) surface before and after formula in the form of flange.
2. a kind of cartridge type exhaust aftertreatment according to claim 1 encapsulates external thermal insulation heat insulation structural, which is characterized in that described
Cross reinforcing (4) and waling (5) are provided on heat shield (3).
3. a kind of cartridge type exhaust aftertreatment according to claim 2 encapsulates external thermal insulation heat insulation structural, which is characterized in that described
The number of cross reinforcing (4) is three or more, and the number of waling (5) is two or more.
4. a kind of cartridge type exhaust aftertreatment according to claim 2 encapsulates external thermal insulation heat insulation structural, which is characterized in that described
Cross reinforcing (4) and waling (5) are tightly attached on cylinder (1).
5. a kind of cartridge type exhaust aftertreatment according to claim 1 encapsulates external thermal insulation heat insulation structural, which is characterized in that described
Heat shield (3) is on one side to in-flanges, to guarantee that two clam shell heat shields (3) connect welding.
6. a kind of cartridge type exhaust aftertreatment according to claim 1 encapsulates external thermal insulation heat insulation structural, which is characterized in that described
Heat shield (3) and the gap location of cylinder (1) are filled with heat-preservation cotton (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811241494.7A CN109339927A (en) | 2018-10-24 | 2018-10-24 | A kind of cartridge type exhaust aftertreatment encapsulation external thermal insulation heat insulation structural |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811241494.7A CN109339927A (en) | 2018-10-24 | 2018-10-24 | A kind of cartridge type exhaust aftertreatment encapsulation external thermal insulation heat insulation structural |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109339927A true CN109339927A (en) | 2019-02-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811241494.7A Pending CN109339927A (en) | 2018-10-24 | 2018-10-24 | A kind of cartridge type exhaust aftertreatment encapsulation external thermal insulation heat insulation structural |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109339927A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110806009A (en) * | 2019-11-01 | 2020-02-18 | 镇江东方电热有限公司 | Heat insulation structure of heating core |
| CN111425290A (en) * | 2020-05-22 | 2020-07-17 | 无锡威孚力达催化净化器有限责任公司 | Universal type tail gas aftertreatment heat shield |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2324745A (en) * | 1997-04-28 | 1998-11-04 | Yutaka Giken Co Ltd | Catalyst container |
| CN103726913A (en) * | 2014-01-21 | 2014-04-16 | 十堰汇铂环境科技有限公司 | Three-way vehicle catalytic converter assembly and manufacturing and packaging technology thereof |
| CN204984568U (en) * | 2015-09-09 | 2016-01-20 | 杰锋汽车动力系统股份有限公司 | Exhaust system clarifier separates heat exchanger |
| CN206386172U (en) * | 2016-12-31 | 2017-08-08 | 浙江吉利罗佑发动机有限公司 | A kind of ternary catalytic converter assembly |
| CN206503632U (en) * | 2017-01-05 | 2017-09-19 | 北京汽车研究总院有限公司 | A kind of catalyst converter heat shield structure and automobile |
| CN206889063U (en) * | 2017-04-28 | 2018-01-16 | 北京汽车研究总院有限公司 | A kind of catalytic converter assembly and automobile |
| CN207033568U (en) * | 2017-06-26 | 2018-02-23 | 北京汽车研究总院有限公司 | Heat shield, catalytic converter assembly structure and automobile |
| CN207161192U (en) * | 2017-09-12 | 2018-03-30 | 北京汽车研究总院有限公司 | A kind of grain catcher and automobile |
| CN108252776A (en) * | 2017-12-23 | 2018-07-06 | 无锡威孚力达催化净化器有限责任公司 | Cartridge type exhaust aftertreatment encapsulates internal insulation structure |
-
2018
- 2018-10-24 CN CN201811241494.7A patent/CN109339927A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2324745A (en) * | 1997-04-28 | 1998-11-04 | Yutaka Giken Co Ltd | Catalyst container |
| CN103726913A (en) * | 2014-01-21 | 2014-04-16 | 十堰汇铂环境科技有限公司 | Three-way vehicle catalytic converter assembly and manufacturing and packaging technology thereof |
| CN204984568U (en) * | 2015-09-09 | 2016-01-20 | 杰锋汽车动力系统股份有限公司 | Exhaust system clarifier separates heat exchanger |
| CN206386172U (en) * | 2016-12-31 | 2017-08-08 | 浙江吉利罗佑发动机有限公司 | A kind of ternary catalytic converter assembly |
| CN206503632U (en) * | 2017-01-05 | 2017-09-19 | 北京汽车研究总院有限公司 | A kind of catalyst converter heat shield structure and automobile |
| CN206889063U (en) * | 2017-04-28 | 2018-01-16 | 北京汽车研究总院有限公司 | A kind of catalytic converter assembly and automobile |
| CN207033568U (en) * | 2017-06-26 | 2018-02-23 | 北京汽车研究总院有限公司 | Heat shield, catalytic converter assembly structure and automobile |
| CN207161192U (en) * | 2017-09-12 | 2018-03-30 | 北京汽车研究总院有限公司 | A kind of grain catcher and automobile |
| CN108252776A (en) * | 2017-12-23 | 2018-07-06 | 无锡威孚力达催化净化器有限责任公司 | Cartridge type exhaust aftertreatment encapsulates internal insulation structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110806009A (en) * | 2019-11-01 | 2020-02-18 | 镇江东方电热有限公司 | Heat insulation structure of heating core |
| CN111425290A (en) * | 2020-05-22 | 2020-07-17 | 无锡威孚力达催化净化器有限责任公司 | Universal type tail gas aftertreatment heat shield |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190215 |
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| RJ01 | Rejection of invention patent application after publication |