CN214221303U - Catalyst for automobile exhaust - Google Patents
Catalyst for automobile exhaust Download PDFInfo
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- CN214221303U CN214221303U CN202023307512.2U CN202023307512U CN214221303U CN 214221303 U CN214221303 U CN 214221303U CN 202023307512 U CN202023307512 U CN 202023307512U CN 214221303 U CN214221303 U CN 214221303U
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- catalyst
- carrier
- casing
- layer
- automobile exhaust
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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
Abstract
The utility model provides a catalyst converter for automobile exhaust, be in including casing, fixed connection inboard noise damping layer, the contact setting in casing middle part are in the inside reaction zone, the fixed connection of noise damping layer are in the protective layer of casing middle part below, the casing both ends are provided with air inlet and gas outlet, the casing with fixedly connected with centrifugal separation district between the air inlet, the casing with the contact is provided with the heat insulation layer between the noise damping layer. The utility model discloses can reach and solve the three way catalyst converter carrier and cause the purpose that the three way catalyst converter damaged when blockking up by the particulate matter easily, the catalytic efficiency of catalyst is low, the car holds in the palm the end.
Description
Technical Field
The utility model relates to an automobile parts field, concretely relates to catalyst converter for automobile exhaust.
Background
The three-way catalyst is a catalytic device for converting harmful gases such as CO, HC and NOx discharged by automobile exhaust into harmless carbon dioxide, water and nitrogen through oxidation and reduction, and a carrier component of the three-way catalyst is a porous ceramic or porous metal catalytic body coated with a catalytic material layer and arranged in an exhaust pipe of a specially-made automobile. The catalyst is very sensitive to elements such as sulfur, lead, phosphorus, zinc and the like, the sulfur and the lead are from gasoline, the phosphorus and the zinc are from lubricating oil, the four substances and oxide particles formed after the four substances are combusted in an engine are easily adsorbed on the surface of the catalyst, so that the catalyst cannot be contacted with exhaust gas, the catalytic action is lost, the conversion efficiency of the exhaust gas is low, and meanwhile, the adsorption of the particles on the surface of the catalyst causes porous blockage of a carrier, so that the optimal performance of the three-way catalyst cannot be exerted.
When the automobile runs under different working conditions, the phenomenon of bottom support can also occur, so that the ground can generate impact on the catalyst, the structure of the carrier inside the catalyst is further influenced, the carrier can be damaged in serious cases, air holes in the carrier are blocked, the performance of the catalyst is seriously influenced, and the automobile can have the symptoms of weakness acceleration, oil consumption increase, engine shake and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a catalyst converter for automobile exhaust to solve above-mentioned problem, reach and solve the purpose that the three way catalyst converter carrier is caused the three way catalyst converter to damage when blockked up by the particulate matter easily, the catalytic efficiency of catalyst is low, the car holds in the palm the end.
In order to achieve the above object, the utility model provides a following scheme: the utility model provides a catalyst converter for automobile exhaust, includes casing, fixed connection and is in inboard noise damping layer, the contact setting in casing middle part is in the inside reaction zone, the fixed connection of noise damping layer are in the protective layer of casing middle part below, the casing both ends are provided with air inlet and gas outlet, the casing with fixedly connected with centrifugal separation district between the air inlet, the casing with the contact is provided with the heat insulation layer between the noise damping layer.
Preferably, the reaction zone comprises a first carrier and a second carrier fixedly connected to the inner side of the first carrier.
Preferably, the first carrier and the second carrier are ceramic mesh structures or metal mesh structures, the pore diameter of the first carrier is not smaller than that of the second carrier, and a catalyst is coated inside the first carrier and the second carrier.
Preferably, the centrifugal separation region includes a helical blade, the helical blade is fixedly connected to the inner wall of the housing, the blade width of one side of the helical blade close to the air inlet is as wide as the radius of the air inlet, the center of one side of the helical blade far away from the air inlet is a hollow structure, and the diameter of the hollow structure gradually increases along the direction from the air inlet to the housing.
Preferably, the protective layer includes the buffer layer, buffer layer below fixedly connected with waterproof layer.
Preferably, the buffer layer is an ACF limit buffer material.
Preferably, the housing is stainless steel.
Preferably, a plurality of round holes are formed in the sound-deadening layer, and the sound-deadening layer is made of stainless steel.
Preferably, the heat insulating layer is an asbestos fiber felt.
The utility model discloses has following technological effect: when the waste gas passes through the centrifugal separation area, the centrifugal separation area enables the waste gas to generate centrifugal force in the circulating process, particles with large particle size and particles with small particle size in the waste gas are separated, catalytic reaction is respectively carried out in the reaction area, and the particles with large particle size are effectively prevented from blocking the reaction area; the silencing layer can effectively reduce the exhaust noise of the engine and reduce the radiation noise of the exhaust; when the shell works, the temperature of the shell is very high, the protective layer effectively protects water on the ground from splashing on the shell, and the aging speed of the shell is slowed down; when the automobile supports the bottom, the protective layer can also absorb the impact of the buffer ground on the shell, thereby effectively avoiding the structural damage and blockage in the reaction area and enabling the filtered exhaust to be discharged smoothly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic view of a catalyst structure;
FIG. 2 is a schematic cross-sectional view of a catalyst;
fig. 3 is a schematic view of a helical blade structure.
Wherein, 1 is a shell, 2 is an air inlet, 3 is an air outlet, 4 is a centrifugal separation area, 401 is a helical blade, 5 is a protective layer, 501 is a buffer layer, 502 is a waterproof layer, 6 is a sound attenuation layer, 7 is a heat insulation layer, 8 is a reaction area, 801 is a first carrier, 802 is a second carrier, 803 is a catalyst.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1-3, the utility model provides a catalyst converter for automobile exhaust, including casing 1, fixed connection at the inboard amortization layer 6 in casing 1 middle part, contact setting at the inside reaction zone 8 of amortization layer 6, the protective layer 5 of fixed connection in casing 1 middle part below, 1 both ends of casing are provided with air inlet 2 and gas outlet 3, fixedly connected with centrifugal separation district 4 between casing 1 and the air inlet 2, the contact is provided with heat insulation layer 7 between casing 1 and the amortization layer 6. When the waste gas passes through the centrifugal separation area 4, the centrifugal separation area 4 enables the waste gas to generate centrifugal force in the circulating process, particles with large particle size and particles with small particle size in the waste gas are separated, catalytic reaction is respectively carried out in the reaction area 8, and the particles with large particle size are effectively prevented from blocking the reaction area 8; the silencing layer 6 can effectively reduce the exhaust noise of the engine and reduce the radiation noise of the exhaust; when the temperature of the shell 1 is high during work, the protective layer 5 effectively protects water on the ground from splashing on the shell 1 and slows down the aging speed of the shell 1; when the automobile supports the bottom, the protective layer 5 can also absorb the impact of the buffer ground on the shell 1, thereby effectively avoiding the structural damage and blockage in the reaction zone 8 and enabling the filtered exhaust to be discharged smoothly.
In a further preferred embodiment, the reaction zone 8 comprises a first support 801, and a second support 802 fixedly attached to the inner side of the first support 801.
In a further optimized scheme, the first carrier 801 and the second carrier 802 are ceramic mesh structures or metal mesh structures, the pore diameter of the first carrier 801 is not less than that of the second carrier 802, and the catalyst 803 is coated inside the first carrier 801 and the second carrier 802.
Further optimize the scheme, centrifugal separation zone 4 includes helical blade 401, and helical blade 401 fixed connection is on the inner wall of casing 1, and helical blade 401 is close to the blade width of one side of air inlet 2 and is the same width with air inlet 2 radius, and helical blade 401 keeps away from one side center of air inlet 2 and is hollow structure, and hollow structure's diameter is gradually increased progressively along air inlet 2 to casing 1 direction. The spiral blade 401 can separate large particulate matters from small particulate matters in the exhaust gas, and perform catalytic reaction on the first carrier 801 and the second carrier 802 respectively, so as to avoid the blockage of the large particulate matters in the catalytic reaction process.
In a further optimized scheme, the protective layer 5 comprises a buffer layer 501 and a waterproof layer 502 fixedly connected below the buffer layer 501. The protective layer 5 can effectively protect the shell 1 from being damaged by collision with the ground when supporting the bottom, and prevent the internal structure of the reaction zone 8 from being damaged, so that the first carrier 801 and the second carrier 802 are blocked.
In a further optimized scheme, the buffer layer 501 is an ACF limit buffer material.
In a further optimized scheme, the shell 1 is made of stainless steel.
Further optimize the scheme, seted up a plurality of round holes on amortization layer 6, amortization layer 6 is the stainless steel.
In a further optimized scheme, the heat insulation layer 7 is made of asbestos fiber felt.
The working process of the embodiment is as follows: waste gas generated after combustion in an engine cylinder is led to the air inlet 2 of the catalyst through an engine air outlet, then the waste gas passes through the spiral blade 401, centrifugal force is generated under the action of the spiral blade 401, particles with larger particle diameters in the waste gas are pushed to the outermost side of the spiral blade 401 by the centrifugal force, the area of the first carrier 801 is discharged outwards, particles with smaller particle diameters in the waste gas flow to the direction of the shell 1 along with the waste gas at the position close to the center of the spiral blade 401, then the waste gas passes through the hollow structure of the spiral blade 401, and then the smaller particles in the waste gas are pushed to the area of the second carrier 802; through the special structural arrangement of the spiral blade 401, the particles with large particle size and the particles with small particle size in the exhaust gas can be separated, so that the exhaust gas with different particle sizes respectively passes through the first carrier 801 and the second carrier 802, the pores of the first carrier 801 are larger than the pores of the second carrier 802, the problem of blockage of a catalyst is prevented, the exhaust gas passes through the catalysts on the first carrier 801 and the second carrier 802, the exhaust gas is promoted to carry out redox reaction under the action of the catalysts, and CO in the exhaust gas is oxidized into colorless and nontoxic carbon dioxide gas at high temperature; HC compounds are oxidized at high temperature to water (H20) and carbon dioxide; NOx is reduced to nitrogen and oxygen; the waste gas after reaction is led to the air outlet 3 and finally discharged to the atmosphere.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (9)
1. A catalyst for automobile exhaust is characterized in that: including casing (1), fixed connection casing (1) middle part inboard noise damping layer (6), contact setting are in inside reaction zone (8), the fixed connection of noise damping layer (6) are in protective layer (5) of casing (1) middle part below, casing (1) both ends are provided with air inlet (2) and gas outlet (3), casing (1) with fixedly connected with centrifugal separation district (4) between air inlet (2), casing (1) with the contact is provided with heat insulation layer (7) between noise damping layer (6).
2. The catalyst for automobile exhaust according to claim 1, characterized in that: the reaction zone (8) comprises a first carrier (801), a second carrier (802) fixedly connected to the inner side of the first carrier (801).
3. The catalyst for automobile exhaust according to claim 2, characterized in that: the first carrier (801) and the second carrier (802) are of a ceramic mesh structure or a metal mesh structure, the pore diameter of the first carrier (801) is not smaller than that of the second carrier (802), and a catalyst (803) is coated inside the first carrier (801) and the second carrier (802).
4. The catalyst for automobile exhaust according to claim 1, characterized in that: centrifugal separation district (4) include helical blade (401), helical blade (401) fixed connection be in on the inner wall of casing (1), helical blade (401) are close to the blade width of one side of air inlet (2) with air inlet (2) radius is aequilate, helical blade (401) are kept away from the one side center of air inlet (2) is hollow structure, hollow structure's diameter is followed air inlet (2) progressively increase progressively to casing (1) direction.
5. The catalyst for automobile exhaust according to claim 1, characterized in that: the protective layer (5) comprises a buffer layer (501), and a waterproof layer (502) is fixedly connected below the buffer layer (501).
6. The catalyst for automobile exhaust according to claim 5, characterized in that: the buffer layer (501) is an ACF limit buffer material.
7. The catalyst for automobile exhaust according to claim 1, characterized in that: the shell (1) is made of stainless steel.
8. The catalyst for automobile exhaust according to claim 1, characterized in that: a plurality of round holes are formed in the sound-deadening layer (6), and the sound-deadening layer (6) is made of stainless steel.
9. The catalyst for automobile exhaust according to claim 1, characterized in that: the heat insulation layer (7) is made of asbestos fiber felt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023307512.2U CN214221303U (en) | 2020-12-31 | 2020-12-31 | Catalyst for automobile exhaust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023307512.2U CN214221303U (en) | 2020-12-31 | 2020-12-31 | Catalyst for automobile exhaust |
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| Publication Number | Publication Date |
|---|---|
| CN214221303U true CN214221303U (en) | 2021-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023307512.2U Active CN214221303U (en) | 2020-12-31 | 2020-12-31 | Catalyst for automobile exhaust |
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| CN (1) | CN214221303U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114542253A (en) * | 2022-02-18 | 2022-05-27 | 南京工程学院 | Catalytic treatment device for automobile exhaust |
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2020
- 2020-12-31 CN CN202023307512.2U patent/CN214221303U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114542253A (en) * | 2022-02-18 | 2022-05-27 | 南京工程学院 | Catalytic treatment device for automobile exhaust |
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