CN2050471U - Mixture type internal combustion engine exhaust catalytic conversion and purifying devices - Google Patents
Mixture type internal combustion engine exhaust catalytic conversion and purifying devices Download PDFInfo
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- CN2050471U CN2050471U CN88206725U CN88206725U CN2050471U CN 2050471 U CN2050471 U CN 2050471U CN 88206725 U CN88206725 U CN 88206725U CN 88206725 U CN88206725 U CN 88206725U CN 2050471 U CN2050471 U CN 2050471U
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- honeycomb catalyst
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- internal combustion
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- 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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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model relates to a catalytic conversion and purifying device for a mixed type internal combustion engine, which is suitable for an automobile engine and the exhausting and purifying devices of other internal combustion engines. The device integrally and organically combines alloy honeycomb catalyst and integral ceramic honeycomb catalyst, forming a cylindrical or elliptic structure that the ceramic honeycomb catalyst is used as an inner core and the alloy honeycomb catalyst is on an outer layer. The advantages of the alloy honeycomb catalyst and the integral ceramic honeycomb catalyst are concentrated on the utility model. The utility model has the advantages of antivibration, shock resistance, easy shaping, easy installation, great temperature change resistance, stable purification efficiency, long service life, fast activity start, small size, low cost, and little resistance.
Description
The utility model is about a kind of hybrid type catalytic purification parts, is to be used for exhaust gas purifier for internal combustion engine, particularly the hybrid type catalytic purification parts of automobile exhaust gas purifying silencing apparatus.
In Chinese utility model patent CN86202876, the inventor has successfully proposed the hybrid type catalytic purification parts that a kind of ceramic honeycomb and alloy cellular combine, it is good that it has compiled the anti-mechanical vibration performance that alloy cellular has, thermal conductivity is good, active starting is fast, hole wall is thinner, geometrical surface can be bigger under equal volume, and moulding is easy; And the fusing point that ceramic honeycomb has is higher, thermal expansion coefficient is lower, better with the compatibility of catalytic active substance, thereby make that coating layer of active substance difficult drop-off, gas-flow resistance are less, carrier rerum natura such as tuning range broads such as hole structure, specific surface area or the like advantage, thereby obtained exhaust gas purification effect preferably.But it is very big to improving the exhaust gas purification effect relation how to mate these two kinds of cellular structures, and alloy cellular is easy to sintering under superheat state, and cost is also higher, and ceramic honeycomb is because anti-mechanical shock ability is relatively poor, and is damaged easily.During use, if air-flow skewness on whole through-flow section, can cause local superheating and hardening crack.
The purpose of this utility model is, should overcome alloy cellular structure easy-sintering, the cost height, the shortcoming of ceramic honeycomb cracky, advantage with above-mentioned two kinds of structures puts together again, thus for exhaust gas purifier for internal combustion engine provide a kind of optimization, physical property and the good catalytic purification parts of chemical property tool.
According to hybrid type catalytic purification parts of the present utility model, it is characterized in that the alloy corrugated ribbon and the flat rubber belting that will be soaked with catalyzer respectively are wrapped in bulk ceramics honeycomb catalyst outer wall, constituting ceramic honeycomb catalyst is the overall structure of the Cylinder or the tourus of inner core, the diameter of mixed catalyst passage section is by the number of turns adjustment of alloy corrugated ribbon and flat rubber belting, the mixed volume ratio of ceramic honeycomb catalyst and alloy honeycomb catalyst is 0.8～4.5:1, and the width of alloy corrugated ribbon and flat rubber belting is 0.1～1.1 with the ratio of the height of bulk ceramics honeycomb catalyst.
When the ratio of above-mentioned width and height less than 0.5 the time, along the bulk ceramics honeycomb catalyst axially side by side the winding plurality of sections leave the alloy catalyst that the gap is 2～30mm each other, separate with ring-type three lobe dividing plates between this alloy catalyst.
According to hybrid type catalytic purification parts of the present utility model, because the bulk ceramics honeycomb catalyst is in the center of passage section, air-flow is evenly distributed, thereby has avoided the phenomenon that carrier hardening cracked because of local superheating; Skin is the alloy carried catalyst, utilize its good thermal conductivity, regulate by the purification plant wall heat radiation that is in contact with it, and avoided superheat state to make the phenomenon of its sintering, be equivalent to its heat resisting temperature has been improved 100～200 ℃, because the alloy carried catalyst has certain elasticity, played damping effect, thereby improved the mechanical strength of purifying part again; The diameter of mixed catalyst passage section can be convenient to be applied in the purifier of different size by the number of turns adjustment of alloy corrugated ribbon and flat rubber belting; Adopted the bulk ceramics honeycomb catalyst that accounts for larger proportion, thereby cost is lower, and purification ratio is stable.
Describe the formation and the feature thereof of hybrid type catalytic purification parts of the present utility model now in detail in conjunction with following accompanying drawing.
The hybrid type purifying part that accompanying drawing 1-alloy honeycomb catalyst and ceramic honeycomb catalyst are wide.
Accompanying drawing 2-three lobe dividing plates
The hybrid type purifying part of accompanying drawing 3-B/H＜0.5.
The A-A sectional drawing of accompanying drawing 4-accompanying drawing 3.
Accompanying drawing 1 is depicted as a kind of pattern of B/H=1 in the utility model.Wherein B is the width of alloy corrugated ribbon 1 and flat rubber belting 2; H is the height of ceramic honeycomb catalyst carrier.Respectively tightly be wrapped in alloy corrugated ribbon 1 and flat rubber belting 2 on the outer wall of bulk ceramics honeycomb 3, thereby having formed a bulk ceramics honeycomb catalyst is inner core, alloy honeycomb catalyst is outer field Cylinder or ellipse Cylinder, the diameter of its passage section is by the number of turns adjustment of alloy corrugated ribbon and flat rubber belting, and the mixed volume ratio of ceramic honeycomb catalyst and alloy honeycomb catalyst is 0.8～4.5:1.Catalytic purification parts can be rearranged by certain way by one or more this mixed catalyst.
Because be covered with aperture and burr on alloy corrugated ribbon 1 and the flat rubber belting 2, its frictional force can make itself and ceramic catalyst outer wall contacting point not have relative movement.For increasing frictional force, also can open some shallow slots vertically on the ceramic catalyst surface less than 1 millimeters deep.
Outermost alloy corrugated ribbon joint can adopt spot welding or with the steel card it is fixed on the mixed catalyst outer wall.
Because the carrier of above-mentioned two kinds of catalyzer all has different microcellular structures, thereby exists acoustic resistance, and the radio-frequency component in the noise is had certain sound absorption, its acoustic absorptivity is 0.3～0.6.
Fig. 2 is depicted as three lobe dividing plates, and three lobe dividing plates 4 are welded on the annular mount 5, and the shape of fixing frame 5 is determined by the support shapes of bulk ceramics honeycomb catalyst 3.
Fig. 3 is depicted as B/H＜0.5 o'clock a kind of pattern of the present utility model.Along bulk ceramics honeycomb catalyst 3 axially side by side twine the alloy catalyst 1 and 2 that plurality of sections leaves 2～30mm gap each other, can separate with ring-type three lobe dividing plates 4 between the alloy catalyst.
Fig. 4 is the A-A sectional drawing of Fig. 3, and the cross section of bulk ceramics honeycomb catalyst 3 can be garden shape, ellipse garden shape or rectangle.
The utility model also can be used for the Industrial Catalysis purification plant.
The utility model is used for the JX fuel-saving type purifying muffler of BJ130 automobile, used B=H=50mm, three of the mixed catalysts of diameter 160mm, the hybrid type purifying part that leaves the gap of 20mm mutually and form, the volume ratio of ceramic honeycomb catalyst and alloy honeycomb catalyst is 1.4:1, its initial purge rate is CO:98%, HC:95%; After moving 80,000 kilometers, purifying part is without any breakage, and its purification ratio is CO:58%, HC:50%.
Claims (2)
1, a kind of hybrid type I. C. engine exhaust catalytic purification parts, by being the catalyzer of carrier with the alloy cellular and being that the catalyzer of carrier is formed with the bulk ceramics honeycomb, it is characterized in that: alternate moving being wrapped on the outer wall of bulk ceramics honeycomb catalyst of alloy corrugated ribbon that will be soaked with catalyzer with flat rubber belting, formation is inner core with the pottery, alloy honeycomb catalyst is in the overall structure of outer field garden post or ellipse garden shape, catalytic purification parts can be arranged by certain way and formed by one or more above-mentioned overall structure, the diameter of the integrally-built passage section of this mixed catalyst, number of turns adjustment by alloy corrugated ribbon and flat rubber belting, the mixed volume ratio of ceramic honeycomb catalyst is 0.8～4.5: 1, and the width B of alloy corrugated ribbon and flat rubber belting is 0.1＜(B)/(H)＜1.1 with the ratio of the height H of bulk ceramics honeycomb catalyst.
2, hybrid type type I. C. engine exhaust catalytic purification parts according to claim 1, it is characterized in that when B/H＜0.5, can axially twine the alloy honeycomb catalyst that plurality of sections leaves the 2-30mm gap each other side by side along the bulk ceramics honeycomb catalyst, ring-type three lobe dividing plates are installed in above-mentioned gap to separate each section alloy honeycomb catalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN88206725U CN2050471U (en) | 1988-06-11 | 1988-06-11 | Mixture type internal combustion engine exhaust catalytic conversion and purifying devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN88206725U CN2050471U (en) | 1988-06-11 | 1988-06-11 | Mixture type internal combustion engine exhaust catalytic conversion and purifying devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2050471U true CN2050471U (en) | 1990-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN88206725U Granted CN2050471U (en) | 1988-06-11 | 1988-06-11 | Mixture type internal combustion engine exhaust catalytic conversion and purifying devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2050471U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100413563C (en) * | 2003-07-31 | 2008-08-27 | 布卢薄膜有限责任公司 | Supporting body with immobilized catalytically active units |
-
1988
- 1988-06-11 CN CN88206725U patent/CN2050471U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100413563C (en) * | 2003-07-31 | 2008-08-27 | 布卢薄膜有限责任公司 | Supporting body with immobilized catalytically active units |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |