CN203756293U - Screw-fastening-sealed catalytic muffler for casting shells of high-displacement commercial vehicle - Google Patents
Screw-fastening-sealed catalytic muffler for casting shells of high-displacement commercial vehicle Download PDFInfo
- Publication number
- CN203756293U CN203756293U CN201420143931.2U CN201420143931U CN203756293U CN 203756293 U CN203756293 U CN 203756293U CN 201420143931 U CN201420143931 U CN 201420143931U CN 203756293 U CN203756293 U CN 203756293U
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- China
- Prior art keywords
- housing
- district
- proparea
- flange
- catalytic
- Prior art date
- 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.)
- Expired - Lifetime
Links
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 39
- 238000005266 casting Methods 0.000 title abstract description 7
- 238000006073 displacement reaction Methods 0.000 title abstract description 5
- 238000007789 sealing Methods 0.000 claims abstract description 7
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000003054 catalyst Substances 0.000 claims description 17
- 238000012856 packing Methods 0.000 claims description 16
- 230000000694 effects Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 abstract description 13
- 239000000969 carrier Substances 0.000 abstract description 4
- 229910001018 Cast iron Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 2
- 229910000851 Alloy steel Inorganic materials 0.000 abstract description 2
- 229910001208 Crucible steel Inorganic materials 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000006555 catalytic reaction Methods 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 238000010079 rubber tapping Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model discloses a screw-fastening-sealed catalytic muffler for the casting shells of a high-displacement commercial vehicle. According to the screw-fastening-sealed catalytic muffler disclosed by the utility model, a fine thread and a flange disc with a high-temperature-resistant elastic sealing gasket are used, and the casting junctions of the front-area shell, the middle-area shell and the rear-area shell of the catalytic muffler, and the junctions of the shells and pipe fittings are air-tightly connected by means of mechanical fastening pressurization, thus achieving the purpose of non-welding sealing assembly. A catalytic carrier is installed in the middle area of a catalytic bed, the catalytic carrier is formed by installing tetragonal single carriers in carrier lattices and combining, and the quantity of the single carriers is 4-100; a front-area intake port flange tube, the front-area shell, the middle-area shell, the rear-area shell and an exhaust port connection tube are cast from cast iron, normal cast steel, heat-resistant steel or aluminium alloy. According to the screw-fastening-sealed catalytic muffler disclosed by the utility model, the problems of limits on the dimensions of the carrier and control on the emission of a high-displacement engine are solved, the exhaust back pressure of the engine is reduced, the power of the engine is increased, oil consumption is reduced, and the technical progress of the catalytic muffler is promoted.
Description
Technical field
The utility model relates to the large discharge capacity commercial car of a kind of fastened by screw sealed type foundry goods housing catalyzed muffler, belong to the catalysis of After-treatment technics waste-gas cleaning, baffler manufacturing technology field.
Background technique
At present, in known technology, conventional engine exhaust purifying catalyzed muffler housing generally has two kinds of face shapings--square and circular catalyzed muffler.It is the stainless steel impact briquetting of 1.3-2.0 mm that both housings all adopt thickness, and welding encapsulates, and this technique needs multiple tracks welding process just can complete, product often there will be discontinuity, poor air-tightness, size error greatly can not unified specification etc. problem.For guaranteeing the quality of welding zone, must pass through air tight test, expose the multiple tracks aftertreatment technologys such as the middle temperature phosphating processing of soldering point surface, rust prevention by applying liquid material priming paint, thereby manufacturing efficiency low, consume energy high, need to pass through manual welding, automatic welding, robot welding, frock clamping equipment, also need welding skilled worker and the device maintenance attendant of a large amount of specialties, equipment investment is large, and cost of labor is high, manufacturing efficiency is low, energy consumption is high, produce time welding produces not environmental protection of waste gas; Product rejection rear catalyst carrier is difficult for reclaiming, and brings secondary pollution to environment, and catalyzed muffler housing can not be reused.
The catalyzed muffler of the outer large-duty engine of producing of Current Domestic, generally all loads round carrier in its catalytic domain, according to engine displacement difference, its inner assembling mode is different.If cross section is square catalyzed muffler, on same cross section, conventional square catalyzed muffler catalytic domain is generally assembled into a catalyst unit module by 4 above round carriers, like this, between each round carrier and square casing, just have the white space that needs in a large number encapsulation process, this assembling mode not only can not make full use of catalytic domain surface area, has also increased engine exhaust back pressure, engine power is declined, and oil consumption increases.If cross section is circular catalyzed muffler, all adopt large diameter ceramic monolith, carrier diameter increases along with the rising of engine displacement, 400 conventional order ceramic monolith maximum diameters are 286 mm at present, and the maximum ceramic monolith diameter for engine tail gas catalyzed processing that present stage can produce is in the world 320 mm, but only have 300 orders, catalysis Area Ratio 400 order carriers decrease.In other words, limit by technical development, also fail to produce diameter at present and be greater than 320mm and the large ceramic monolith of catalysis Area Ratio 300 orders, therefore due to carrier restricted diameter, the raising that emission standard requires, can only process the motor below 12L discharge capacity, and the motor of large discharge capacity is had no way out.Along with engine technology is constantly ripe, discharge capacity is also progressively strengthening, and emission request will exceed state more than six, even higher emission standard.Therefore, seek the large discharge capacity commercial car of a kind of fastened by screw sealed type foundry goods housing catalyzed muffler, optimize internal structure, package technique, break that the limited technology of catalyzed muffler carrier dimensions is tired scratches, overcome a large discharge capacity commercial car catalysis noise reduction difficult problem, be very important for the technological progress of catalyzed muffler.
Summary of the invention
The purpose of this utility model is to provide the large discharge capacity commercial car of a kind of fastened by screw sealed type foundry goods housing catalyzed muffler, overcome conventional catalyst baffler and need multiple tracks welding technological forming, complex process is difficult to be controlled, specification error is large, catalyst carrier is size-constrained, catalytic domain surface area utilizes insufficient, engine exhaust back pressure increases power and declines, oil consumption is high, manufacturing efficiency is low, producing equipment has high input, cost of labor is high, energy consumption is high, not environmental protection, can not meet the emission request of the above motor of 12L discharge capacity, catalyzer can not for convenience detachly be changed, spent catalyst carrier recovery difficulty, catalyzed muffler housing such as can not reuse at the shortcoming, for forming NBS, catalyzed muffler from now on lays the foundation.
For achieving the above object, the utility model has adopted following technical proposals: the large discharge capacity commercial car of a kind of fastened by screw sealed type foundry goods housing catalyzed muffler, by the catalyzed muffler proparea that is provided with suction port hush pipe, district and be provided with the catalyzed muffler back zone composition of air outlet hush pipe in catalytic bed, housing joint, Zhong district of district in the proparea housing in noise reduction catalyst converter proparea and catalytic bed, square proparea flange and the high temperature resistant elastic packing pad of fit sealing effect are respectively arranged with, Zhong district housing and housing joint, proparea, be provided with square Zhong district forward flange, the housing joint, back zone of Zhong district housing and catalyst converter back zone, be provided with square Zhong district's rear flange and high temperature resistant elastic packing pad, in housing joint, housing Yu Zhong district, back zone, be provided with square back zone flange, housing Yu Zhong district, proparea housing is by proparea flange, high temperature resistant elastic packing pad Ji Zhong district forward flange closely connects with fastening piece, middle district housing and back zone housing are by middle district rear flange, high temperature resistant elastic packing pad and back zone flange closely connect with fastening piece, catalytic carrier is installed in district in catalytic bed, and catalytic carrier is arranged in carrier hole lattice and is combined by the single carrier of tetragonal body, and the quantity of single carrier is 4-100, described proparea suction port flanged pipe, proparea housing, middle district housing, back zone housing and air outlet are taken over, by cast iron, Normal Steel Casting, refractory steel or aluminum alloy casting.
Take the utility model of above-mentioned measure, use fine and closely woven screw thread and flange plate to add high temperature resistant elastic packing pad, the mode of pressurizeing by mechanical fasteners is tightly connected each catalyzed muffler shell casting joint, housing and pipe fitting joint, reaches the object of non-welded seal assembling.Because whole housing assembling process welding, the assembling that can realize exhaust system component completes, and improves product dimensional accuracy, degree of finish and ornamental.Simultaneously in order to make full use of inner space, district in catalyzed muffler is designed to independent catalytic bed reaction zone by the utility model, its inner employing square opening lattice design, in the lattice of each hole, pack single side's catalyst carrier body into, each catalyst module surrounding seals with high temperature resistant pad and guard catalyst module is shunk in anti-carrier thermal expansion, the catalyst carrier that multiple holes lattice are installed forms a catalytic bed, along with the increase of engine exhaust amount, catalyst unit module also increases thereupon, be assembled into larger catalytic bed reaction zone, the utility model can meet the small-sized of discharge capacity >=4.0 L, medium-sized, large-scale, monoster engine emission aftertreatment.The further expansion that catalytic domain of the present utility model water cross section is long-pending, not only makes catalytic domain cross-section area be fully used, and has solved the limited problem of carrier dimensions, and has greatly reduced engine exhaust back pressure, has increased engine power, has reduced oil consumption.Because the utility model is to adopt the mode of machinery pressurization fit sealing to encapsulate by screw and flange plate, the catalyst carrier being arranged in catalytic bed was losing efficacy or was damaging rear replacing conveniently, and conventional catalyst baffler cannot be changed, so not only reached MAT'L recycling but also reduced client's secondary purchase cost; Simplify packaging process, shortened the catalyzed muffler product manufacturing cycle; Because dimensional accuracy is high, can greatly improve engine works' assembling amount; The waste gas and the energy consumption that while having reduced welding, have produced, reduced cost of production, improved manufacturing efficiency; Meanwhile, the utility model is owing in proparea housing and back zone housing, silencer being all installed, and can carry out according to the actual requirements Multi-layer design, and erasure effect is remarkable.The utility model has solved the problems such as the higher and large-duty engine emission control of emission request, can not only greatly promote the technological progress of catalyzed muffler, be conducive to After-treatment technics catalyst converter simultaneously and form unified standard, realizing NBS and lay the foundation, is the establish a firm foundation of setting up of industry technical standard.
For further illustrating the utility model, below in conjunction with accompanying drawing and mode of execution, the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is the utility model axis of no-feathering mapping;
Fig. 2 is the utility model structural front view;
Fig. 3 is the utility model two unit catalytic carrier module map;
Fig. 4 is the utility model three unit catalytic carrier module map;
Fig. 5 is the stereogram of one of the utility model mode of execution;
Fig. 6 is two stereogram of the utility model mode of execution.
Sequence number in above-mentioned accompanying drawing represents: catalyzed muffler proparea 1, district 2 in catalytic bed, catalyzed muffler back zone 3, suction port flanged pipe 1-1, proparea housing 1-2, suction port hush pipe 1-3, air inlet tube convex thread 1-4, recessed screw thread 1-5, proparea flange 1-6, high temperature resistant elastic packing pad 1-7, middle district housing 2-1, middle district forward flange 2-2, middle district rear flange 2-3, catalytic carrier 2-4, 3-1 is taken in air outlet, back zone housing 3-2, air outlet hush pipe 3-3, outgoing gas connection tube convex thread 3-4, recessed screw thread 3-5, back zone flange 3-6, high temperature resistant elastic packing pad 3-7.
Embodiment
As shown in Figure 1, Figure 2 and shown in Fig. 5 is one of the utility model mode of execution, and the utility model is in this embodiment made up of district 2, catalyzed muffler back zone 3 in catalyzed muffler proparea 1, catalytic bed.Wherein, catalyzed muffler proparea 1 comprises suction port flanged pipe 1-1, proparea housing 1-2 and suction port hush pipe 1-3, one end of suction port flanged pipe 1-1 is provided with air inlet tube convex thread 1-4, proparea shell air inlet tapping is provided with the recessed screw thread 1-5 matching with air inlet tube male thread 1-4, and one end of proparea housing 1-2 is provided with square proparea flange 1-6 and high temperature resistant elastic packing pad 1-7.In catalytic bed, district 2 comprises middle district housing 2-1, the square Zhong of housing front end district forward flange 2-2 and square Zhong district, housing rear end rear flange 2-3.Catalyzed muffler back zone 3 comprises air outlet adapter 3-1, back zone housing 3-2 and air outlet hush pipe 3-3, one end that 3-1 is taken in air outlet is provided with outgoing gas connection tube convex thread 3-4, and housing air outlet, back zone tapping is provided with the recessed screw thread 3-5 matching with outgoing gas connection tube convex thread 3-4.Proparea housing 1-2 is identical with the structure of back zone housing 3-2, just mounting point difference, and its sectional shape is square.In housing 2-1 joint, housing 1-2Yu Zhong district, proparea, square proparea flange 1-6 and the high temperature resistant elastic packing pad 1-7 of fit sealing effect are respectively arranged with, Zhong district housing 2-1 and housing 1-2 joint, proparea, be provided with square Zhong district forward flange 2-2; Zhong district housing 2-1 and housing 3-2 joint, back zone, be provided with square Zhong district rear flange 2-3 and high temperature resistant elastic packing pad 3-7, in housing 2-1 joint, housing 3-2Yu Zhong district, back zone, be provided with square back zone flange 3-6, housing 1-2Yu Zhong district, proparea housing 2-1 closely connects with fastening piece by proparea flange 1-6, high temperature resistant elastic packing pad 1-7Ji Zhong district forward flange 2-2, and middle district housing 2-1 is closely connected as shown in Figure 1 with fastening piece by middle district rear flange 2-3, high temperature resistant elastic packing pad 3-7 and back zone flange 3-6 with back zone housing 3-2.3-1 is taken in proparea suction port flanged pipe 1-1, proparea housing 1-2, middle district housing 2-1, back zone housing 3-2 and air outlet, adopts the mode of casting to prepare by cast iron.Suction port flanged pipe 1-1 is made to an integral (type) flange pipe foundry goods; One end of taking over 3-1 in air outlet, is provided with the outgoing gas connection tube convex thread 3-4 matching with rear case air outlet tapping, at rear case air outlet tapping, is provided with the recessed screw thread 3-5 matching with outgoing gas connection tube convex thread 3-4.Air inlet hush pipe 1-3 is installed in catalyzed muffler proparea 1, air outlet hush pipe 3-3 is installed in catalyzed muffler back zone 3.Catalytic carrier 2-4 is installed in district 2 in catalytic bed, catalytic carrier 2-4 is arranged in carrier hole lattice and is combined by the single carrier of tetragonal body as shown in Figure 3, Figure 4, the quantity of single carrier is 4-100, increase along with the increase of engine exhaust amount, therefore, solved the problem of the catalytic purification noise reduction of large-duty engine, suction port flanged pipe 1-1 and proparea housing 1-2 are mutually screwed and seal by air inlet tube convex thread 1-4 and the recessed screw thread 1-5 of joint; 3-1 is taken in air outlet and rear case 3-2 is mutually screwed and seals by outgoing gas connection tube convex thread 3-4 and the recessed screw thread 3-5 of joint.According to mounting point needs, the position of suction port flanged pipe 1-1 of the present utility model can be on the housing 1-2 of proparea, adjust arbitrarily up and down, the position of air outlet adapter 3-1 can be on the housing 3-2 of back zone, adjust arbitrarily up and down, can, on same wall, also can adjust according to installation and designing requirement, make inlet, outlet position distribution on different walls.
It shown in Fig. 6, is two of mode of execution of the present utility model, in this embodiment, one of Placement between the structure of each constituent elements and each interface and mode of execution are basically identical, and just suction port position of opening and inlet, outlet relative position change to some extent.In catalyzed muffler proparea 1, catalyzed muffler, district 2 and catalyzed muffler back zone 3 are by the mode of fine and closely woven screw thread and flange plate machinery pressurization fit sealing, reach be connected firmly, gas is without leakage, thereby form an overall welding fastened by screw sealed type foundry goods shell catalyzed muffler, as shown in Figure 6.
Claims (1)
1. the large discharge capacity commercial car of a fastened by screw sealed type foundry goods housing catalyzed muffler, by the catalyzed muffler proparea that is provided with suction port hush pipe, district and be provided with the catalyzed muffler back zone composition of air outlet hush pipe in catalytic bed, it is characterized in that Zhong district of district (2) housing (2-1) joint in the proparea housing (1-2) in noise reduction catalyst converter proparea (1) and catalytic bed, square proparea flange (1-6) and the high temperature resistant elastic packing pad (1-7) of fit sealing effect are respectively arranged with, Zhong district housing (2-1) and proparea housing (1-2) joint, be provided with square Zhong district forward flange (2-2), back zone housing (3-2) joint of Zhong district housing (2-1) and catalyst converter back zone (3), be provided with square Zhong district rear flange (2-3) and high temperature resistant elastic packing pad (3-7), in back zone housing (3-2) Yu Zhong district's housing (2-1) joint, be provided with square back zone flange (3-6), proparea housing (1-2) Yu Zhong district's housing (2-1) is by proparea flange (1-6), high temperature resistant elastic packing pad (1-7) Ji Zhong district's forward flange (2-2) closely connects with fastening piece, middle district housing (2-1) passes through middle district rear flange (2-3) with back zone housing (3-2), high temperature resistant elastic packing pad (3-7) and back zone flange (3-6) closely connect with fastening piece, catalytic carrier (2-4) is installed in district in catalytic bed (2), and catalytic carrier (2-4) is arranged in carrier hole lattice and is combined by the single carrier of tetragonal body, and the quantity of single carrier is 4-100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420143931.2U CN203756293U (en) | 2014-03-28 | 2014-03-28 | Screw-fastening-sealed catalytic muffler for casting shells of high-displacement commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420143931.2U CN203756293U (en) | 2014-03-28 | 2014-03-28 | Screw-fastening-sealed catalytic muffler for casting shells of high-displacement commercial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756293U true CN203756293U (en) | 2014-08-06 |
Family
ID=51251579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420143931.2U Expired - Lifetime CN203756293U (en) | 2014-03-28 | 2014-03-28 | Screw-fastening-sealed catalytic muffler for casting shells of high-displacement commercial vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756293U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850764A (en) * | 2014-03-28 | 2014-06-11 | 北海市辉煌朗洁环保科技有限公司 | Screw fastening and sealing type casting housing catalytic muffler for high-emission commercial vehicle |
-
2014
- 2014-03-28 CN CN201420143931.2U patent/CN203756293U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850764A (en) * | 2014-03-28 | 2014-06-11 | 北海市辉煌朗洁环保科技有限公司 | Screw fastening and sealing type casting housing catalytic muffler for high-emission commercial vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 542899, No. 12, Ping'an West Road, the Guangxi Zhuang Autonomous Region, Hezhou Patentee after: Guangxi brilliant Lang Jie environmental protection technology Co.,Ltd. Address before: 536000 Tibet Road, Haicheng District, the Guangxi Zhuang Autonomous Region, No. 36, No. Patentee before: BEIHAI HUIHUANG LANGJIE ENVIRONMENTAL & TECH CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |