CN115045737A - Automobile exhaust purification catalyst carrier - Google Patents

Automobile exhaust purification catalyst carrier Download PDF

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Publication number
CN115045737A
CN115045737A CN202210818278.4A CN202210818278A CN115045737A CN 115045737 A CN115045737 A CN 115045737A CN 202210818278 A CN202210818278 A CN 202210818278A CN 115045737 A CN115045737 A CN 115045737A
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CN
China
Prior art keywords
channel
section
diameter
central
thick
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Pending
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CN202210818278.4A
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Chinese (zh)
Inventor
胡朝稳
吕颂
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Hefei Shenzhou Catalytic Converter Co ltd
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Hefei Shenzhou Catalytic Converter Co ltd
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Priority to CN202210818278.4A priority Critical patent/CN115045737A/en
Publication of CN115045737A publication Critical patent/CN115045737A/en
Pending legal-status Critical Current

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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
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2825—Ceramics
    • F01N3/2828—Ceramic multi-channel monoliths, e.g. honeycombs
    • 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
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

The invention discloses an automobile exhaust purification catalyst carrier which comprises a shell, wherein an exhaust channel is formed in the upper end of the shell, the exhaust channel comprises a central channel and a peripheral channel, the central channel and the peripheral channel are of an up-and-down central symmetry structure, the central axis of the central channel is superposed with the central axis of the shell, the peripheral channel is provided with a plurality of channels, and the peripheral channels are distributed in an annular array by taking the central channel as the center. The flue gas channel with the section radius gradually reduced from the center to the periphery is arranged to replace the traditional average arrangement mode, so that the utilization rate of the catalyst is increased, and the waste of the catalyst is reduced; the smoke channel which is thin in the middle and thick at two ends replaces the traditional equal-diameter tubular structure, so that the reaction efficiency of the automobile exhaust and the noble metal catalyst attached to the inner wall of the smoke channel is improved, and the catalyst is ensured to complete the reaction with the automobile exhaust at the optimal working temperature.

Description

Automobile exhaust purification catalyst carrier
Technical Field
The invention relates to the technical field of automobile exhaust purification, in particular to an automobile exhaust purification catalyst carrier.
Background
The automobile exhaust purification catalyst carrier can be divided into two types of granular and integral block according to the shape. The integral block-shaped carrier is mainly honeycomb-shaped, and the main materials of the carrier are ceramics and metal alloy. The granular carrier is mainly spherical, and the material of the granular carrier is activated alumina. Its advantages are high resistance to high temp and mechanical impact, high specific surface area, and high resistance to exhaust and ignition temp; with the increase of the requirements for comprehensive performance of the catalyst, the granular catalyst is not used.
The integral carrier is in a honeycomb structure, so that the automobile exhaust can be fully contacted with the catalyst, and the purification efficiency is improved. Refer to current patent (application number 201510948643.3) and disclose an automobile exhaust purification catalyst carrier, the carrier includes the cover body, install in the grid of cover body inside and fixed porous composite ball that sets up in the grid, leaves the tail gas passageway between porous composite ball and the grid wall, and the carrier stability in the course of the work can be guaranteed to the core ball, and porous composite layer makes the carrier more effectively bear the weight of the catalyst improvement tail gas purification effect.
Most of flue gas channels in the existing integral carrier are arranged averagely, however, the automobile exhaust is diffused towards the periphery by taking the center as the origin, the gas flow of the center part is fastest, the utilization rate of the catalyst is higher, the optimum utilization rate of the catalyst cannot be achieved because the gas flow is smaller and the utilization rate of the catalyst is smaller when the power is exhausted from the periphery, so that the utilization rate of the catalyst is uneven, the use cost of the catalyst is increased, and the waste of the catalyst is caused; the flue gas channel in the existing monolithic carrier is mostly in a tubular structure with the same diameter, that is, the flow speed of the automobile exhaust in the flue gas channel is only related to the initial speed, the movement path and the like of the automobile exhaust, and when the automobile exhaust enters the flue gas channel, the temperature is gradually reduced, which affects the reaction effect of the automobile exhaust and the catalyst, for example, the temperature at which the three-way catalyst starts to work is about 200 ℃, the optimal working temperature is 400 ℃ to 800 ℃, and the noble metal component used as the catalyst can also generate chemical changes after the temperature is lower than 400 ℃, so that the effective catalyst component in the catalyst is reduced, the catalytic effect is weakened, therefore, the automobile exhaust is required to complete the reaction with the catalyst before the temperature is reduced to 400 ℃, and therefore, the automobile exhaust purification catalyst carrier is provided.
Disclosure of Invention
The invention mainly aims to provide a vehicle exhaust purification catalyst carrier which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides an automobile exhaust purifies catalyst carrier, includes the shell, it has the tail gas passageway to open on the shell, the tail gas passageway includes central channel and peripheral passageway, central channel and peripheral passageway are central symmetrical structure from top to bottom, the central axis of central channel coincides with the central axis of shell, peripheral passageway is provided with a plurality of, a plurality of peripheral passageway uses central channel to be the annular array distribution as the center, the up end diameter of tail gas passageway reduces to all around according to 8 ~ 12% proportion gradually by the center, the tail gas passageway is middle thin both ends coarse structure.
As a further improvement of the scheme, the tail gas channel is sequentially provided with a first thick section, a first gradual change section, a thin section, a second gradual change section and a second thick section from top to bottom, the diameter of the first thick section is equal to that of the second thick section, the diameter of the upper end face of the first gradual change section is equal to that of the lower end face of the first thick section, the diameter of the lower end face of the first gradual change section is equal to that of the upper end face of the thin section, the diameter of the upper end face of the second gradual change section is equal to that of the lower end face of the thin section, and the diameter of the lower end face of the second gradual change section is equal to that of the upper end face of the second thick section.
As a further improvement of the scheme, the ratio of the diameter of the thin section to the diameter of the first thick section is (8.8-9.2): 10.
as a further improvement of the scheme, the ratio of the sum of the heights of the first coarse section and the second coarse section to the height of the flue gas channel is (0.9-1.1): 5.
as a further improvement of the above scheme, the cross-sectional shape of the flue gas channel is any one of a circle, a triangle, a square, a pentagon, a hexagon, a heptagon and an octagon.
As a further improvement of the scheme, the gap distance between the smoke channels is gradually increased from the center to the periphery.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the flue gas channel with the section radius gradually reduced from the center to the periphery is arranged to replace the traditional average arrangement mode, so that the flue gas channel is in dense-middle and sparse-periphery spatial layout, the sectional area of the flue gas channel in the middle area is larger than that of the flue gas channel in the peripheral area, and the flue gas channel is suitable for the characteristics of large central flow and small peripheral flow when the automobile exhaust is discharged, so that the utilization rate of the catalyst is increased, and the waste of the catalyst is reduced.
2. According to the invention, the traditional equal-diameter tubular structure is replaced by the smoke channel which is thin in the middle and thick at two ends, according to the Bernoulli principle, when airflow flows into a narrow space from a wide space, the cross-sectional area of an airflow column is reduced, in order to make the total volume of the airflow passing through the narrow space consistent in unit time, the air pressure at the narrow space is reduced, the airflow velocity is increased, when automobile tail gas enters a first gradual change section from a first thick section, the flow velocity of the automobile tail gas is gradually increased until the automobile tail gas reaches a thin section, at the moment, the flow velocity of the automobile tail gas reaches the maximum, the reaction efficiency of the automobile tail gas and a noble metal catalyst attached to the inner wall of the smoke channel is accelerated, the catalyst is ensured to complete reaction with the automobile tail gas at the optimal working temperature, the purification quality of the automobile tail gas is ensured, and the service life of the catalyst is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of an automobile exhaust gas purifying catalyst carrier according to the present invention;
fig. 2 is a sectional view showing the overall structure of a catalyst carrier for purifying exhaust gas of an automobile according to the present invention.
In the figure: 1. a housing; 2. a tail gas channel; 21. a central channel; 22. a peripheral channel; d1, a first coarse section; d2, first transition section; d3, thin section; d4, a second transition section; d5, second coarse stage.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical scheme of the invention is further explained by combining the attached drawings.
Example one
As shown in fig. 1-2, an automobile exhaust purification catalyst carrier comprises a housing 1, an exhaust channel 2 is opened at the upper end of the housing 1, the exhaust channel 2 comprises a central channel 21 and a peripheral channel 22, the central channel 21 and the peripheral channel 22 are both in an up-down central symmetry structure, the central axis of the central channel 21 coincides with the central axis of the housing 1, the peripheral channel 22 is provided with a plurality of peripheral channels, the peripheral channels 22 are distributed in an annular array by taking the central channel 21 as the center, the diameter of the upper end face of the exhaust channel 2 is gradually reduced from the center to the periphery according to a proportion of 10%, and the exhaust channel 2 is in a middle thin structure with two thick ends.
The tail gas channel 2 is sequentially provided with a first thick section D1, a first gradual change section D2, a thin section D3, a second gradual change section D4 and a second thick section D5 from top to bottom, the diameter of the first thick section D1 is equal to that of the second thick section D5, the diameter of the upper end face of the first gradual change section D2 is equal to that of the lower end face of the first thick section D1, the diameter of the lower end face of the first gradual change section D2 is equal to that of the upper end face of the thin section D3, the diameter of the upper end face of the second gradual change section D4 is equal to that of the lower end face of the thin section D3, and the diameter of the lower end face of the second gradual change section D4 is equal to that of the upper end face of the second thick section D5.
Wherein, the ratio of the diameter of the thin section D3 to the diameter of the first thick section D1 is 9: 10.
wherein, the ratio of the sum of the heights of the first thick section D1 and the second thick section D5 to the height of the flue gas channel 2 is 1: 5.
wherein, the cross-sectional shape of the flue gas channel 2 is hexagonal.
Wherein, the gap distance between the flue gas channels 2 is gradually increased from the center to the periphery.
Example two
The utility model provides an automobile exhaust purifies catalyst carrier, including shell 1, open 1 upper end of shell has tail gas passageway 2, tail gas passageway 2 includes central passage 21 and peripheral passageway 22, central passage 21 and peripheral passageway 22 are central symmetry structure from top to bottom, the central axis of central passage 21 coincides with the central axis of shell 1, peripheral passageway 22 is provided with a plurality of, the peripheral passageway 22 of a plurality of uses central passage 21 to be annular array distribution as the center, tail gas passageway 2's up end diameter is reduced gradually by the center to all around according to 8% proportion, tail gas passageway 2 is middle thin both ends coarse structure.
The tail gas channel 2 is sequentially provided with a first thick section D1, a first gradual change section D2, a thin section D3, a second gradual change section D4 and a second thick section D5 from top to bottom, the diameter of the first thick section D1 is equal to that of the second thick section D5, the diameter of the upper end face of the first gradual change section D2 is equal to that of the lower end face of the first thick section D1, the diameter of the lower end face of the first gradual change section D2 is equal to that of the upper end face of the thin section D3, the diameter of the upper end face of the second gradual change section D4 is equal to that of the lower end face of the thin section D3, and the diameter of the lower end face of the second gradual change section D4 is equal to that of the upper end face of the second thick section D5.
Wherein, the ratio of the diameter of the thin section D3 to the diameter of the first thick section D1 is 8.8: 10.
wherein, the ratio of the sum of the heights of the first thick section D1 and the second thick section D5 to the height of the flue gas channel 2 is 0.9: 5.
wherein the cross-sectional shape of the flue gas channel 2 is circular.
Wherein, the gap distance between the flue gas channels 2 is gradually increased from the center to the periphery.
EXAMPLE III
The utility model provides an automobile exhaust purifies catalyst carrier, including shell 1, open 1 upper end of shell has tail gas passageway 2, tail gas passageway 2 includes central passage 21 and peripheral passageway 22, central passage 21 and peripheral passageway 22 are central symmetry structure from top to bottom, the central axis of central passage 21 coincides with the central axis of shell 1, peripheral passageway 22 is provided with a plurality of, peripheral passageway 22 of a plurality of uses central passage 21 to be the annular array distribution as the center, tail gas passageway 2's up end diameter is reduced gradually to the proportion according to 12% all around by the center, tail gas passageway 2 is middle thin both ends coarse structure.
The tail gas channel 2 is sequentially provided with a first thick section D1, a first gradual change section D2, a thin section D3, a second gradual change section D4 and a second thick section D5 from top to bottom, the diameter of the first thick section D1 is equal to that of the second thick section D5, the diameter of the upper end face of the first gradual change section D2 is equal to that of the lower end face of the first thick section D1, the diameter of the lower end face of the first gradual change section D2 is equal to that of the upper end face of the thin section D3, the diameter of the upper end face of the second gradual change section D4 is equal to that of the lower end face of the thin section D3, and the diameter of the lower end face of the second gradual change section D4 is equal to that of the upper end face of the second thick section D5.
Wherein, the ratio of the diameter of the thin section D3 to the diameter of the first thick section D1 is 9.2: 10.
wherein, the ratio of the sum of the heights of the first thick section D1 and the second thick section D5 to the height of the flue gas channel 2 is 1.1: 5.
wherein the cross-sectional shape of the flue gas channel 2 is triangular.
Wherein, the gap distance between the flue gas channels 2 is gradually increased from the center to the periphery.
In the comprehensive embodiment, the flue gas channel 2 with the section radius gradually reduced from the center to the periphery is arranged to replace the traditional average arrangement mode, so that the flue gas channel 2 is in dense space arrangement in the middle and sparse periphery, the sectional area of the flue gas channel 2 in the middle area is larger than that of the flue gas channel 2 in the peripheral area, and the flue gas channel is suitable for the characteristics of large central flow and small peripheral flow when the automobile exhaust is discharged, the utilization rate of the catalyst is increased, and the waste of the catalyst is reduced; according to the invention, the traditional equal-diameter tubular structure is replaced by the smoke channel 2 which is thin in the middle and thick at two ends, according to the Bernoulli principle, when airflow flows into a narrow space from a wide space, the cross-sectional area of an airflow column is reduced, in order to make the total volume of the airflow passing through the narrow space consistent in unit time, the air pressure at the narrow space is reduced, the airflow velocity is increased, when automobile tail gas enters the first gradual change section D2 from the first thick section D1, the flow velocity of the automobile tail gas is gradually increased until the automobile tail gas reaches the thin section D3, at the moment, the flow velocity of the automobile tail gas reaches the maximum, the reaction efficiency of the automobile tail gas and a noble metal catalyst attached to the inner wall of the smoke channel 2 is accelerated, the reaction of the catalyst with the automobile tail gas in the optimal working temperature is ensured, the purification quality of the automobile tail gas is ensured, and the service life of the catalyst is prolonged.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. An automobile exhaust gas purification catalyst carrier, comprising a housing (1), characterized in that: the tail gas exhaust device is characterized in that a tail gas channel (2) is arranged at the upper end of the shell (1), the tail gas channel (2) comprises a central channel (21) and a peripheral channel (22), the central channel (21) and the peripheral channel (22) are of an upper-lower central symmetrical structure, the central axis of the central channel (21) coincides with the central axis of the shell (1), the peripheral channel (22) is provided with a plurality of peripheral channels (22) which are distributed in an annular array mode by taking the central channel (21) as the center, the diameter of the upper end face of the tail gas channel (2) is gradually reduced from the center to the periphery according to the proportion of 8-12%, and the tail gas channel (2) is of a middle thin two-end thick structure.
2. The vehicle exhaust gas purification catalyst carrier according to claim 1, wherein: tail gas passageway (2) from the top down has set gradually first thick section (D1), first gradual change section (D2), thin section (D3), second gradual change section (D4) and second thick section (D5), the diameter of first thick section (D1) and the diameter of second thick section (D5) equal, the diameter of first gradual change section (D2) up end equals the diameter of first thick section (D1) lower terminal surface, the diameter of first gradual change section (D2) lower terminal surface equals the diameter of thin section (D3) up end, the diameter of second gradual change section (D4) up end equals the diameter of thin section (D3) lower terminal surface, the diameter of second gradual change section (D4) lower terminal surface equals the diameter of second thick section (D5) up end.
3. The vehicle exhaust gas purification catalyst carrier according to claim 1, wherein: the diameter ratio of the thin section (D3) to the first thick section (D1) is (8.8-9.2): 10.
4. the vehicle exhaust gas purification catalyst carrier according to claim 1, wherein: the ratio of the sum of the heights of the first coarse section (D1) and the second coarse section (D5) to the height of the flue gas channel (2) is (0.9-1.1): 5.
5. the vehicle exhaust gas purification catalyst carrier according to claim 1, wherein: the cross section of the flue gas channel (2) is in any one of a circle, a triangle, a square, a pentagon, a hexagon, a heptagon and an octagon.
6. The vehicle exhaust gas purification catalyst carrier according to claim 1, wherein: the gap distance between the smoke channels (2) is gradually increased from the center to the periphery.
CN202210818278.4A 2022-07-11 2022-07-11 Automobile exhaust purification catalyst carrier Pending CN115045737A (en)

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Application Number Priority Date Filing Date Title
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JPH03188925A (en) * 1989-12-19 1991-08-16 Usui Internatl Ind Co Ltd Apparatus for cleaning waste gas
JPH11148346A (en) * 1997-11-18 1999-06-02 Nissan Motor Co Ltd Exhaust gas purification device for internal combustion engine
CN2737957Y (en) * 2004-10-01 2005-11-02 重庆大学 Natural gas vehicle tail gas equalized flow ternary catalytic purifier
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CN205627983U (en) * 2016-05-18 2016-10-12 杨宇昂 Flue gas denitration catalyst's supporting body
CN205744074U (en) * 2016-06-14 2016-11-30 湘潭大学 A kind of multichip carrier engine catalytic converter of micro-channel gradual change
CN206668362U (en) * 2017-03-22 2017-11-24 广东科学技术职业学院 A kind of automobile exhaust gas purifying installation
CN207634151U (en) * 2017-12-15 2018-07-20 河南省正大环境科技咨询工程有限公司 A kind of vent gas catalytic cleaner
CN208252185U (en) * 2018-04-26 2018-12-18 四川绵阳华元航升环保科技有限公司 A kind of vehicle exhaust catalysis core
CN109236433A (en) * 2018-10-24 2019-01-18 刘锋 It is a kind of for purifying the three-way catalytic apparatus of vehicle exhaust
CN109281734A (en) * 2018-09-10 2019-01-29 四会市新亚商绿环保科技有限公司 A kind of automobile speed-raising energy-saving and purifying catalyst converter
CN209244642U (en) * 2018-12-29 2019-08-13 无锡同益环保科技有限公司 A kind of hollow type honeycomb substrate
CN111608770A (en) * 2020-04-23 2020-09-01 新昌县羽林街道巨晖机械厂 But real-time supervision's high-efficient automobile exhaust catalytic converter
CN211623524U (en) * 2019-12-31 2020-10-02 广西柳州宇阳节能科技有限公司 Automobile exhaust administers device
CN112682138A (en) * 2020-12-25 2021-04-20 深圳大学 Motor vehicle exhaust converter with non-uniformly arranged microchannels and manufacturing method thereof

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03188925A (en) * 1989-12-19 1991-08-16 Usui Internatl Ind Co Ltd Apparatus for cleaning waste gas
JPH11148346A (en) * 1997-11-18 1999-06-02 Nissan Motor Co Ltd Exhaust gas purification device for internal combustion engine
CN2737957Y (en) * 2004-10-01 2005-11-02 重庆大学 Natural gas vehicle tail gas equalized flow ternary catalytic purifier
CN201486629U (en) * 2009-08-26 2010-05-26 厦门理工学院 Improved structure of carrier of automobile catalytic converter
CN104265418A (en) * 2014-08-22 2015-01-07 成都代代吉前瞻科技股份有限公司 Intake device for DEP (diesel exhaust particles) automobile exhaust purifying system
CN205627983U (en) * 2016-05-18 2016-10-12 杨宇昂 Flue gas denitration catalyst's supporting body
CN205744074U (en) * 2016-06-14 2016-11-30 湘潭大学 A kind of multichip carrier engine catalytic converter of micro-channel gradual change
CN206668362U (en) * 2017-03-22 2017-11-24 广东科学技术职业学院 A kind of automobile exhaust gas purifying installation
CN207634151U (en) * 2017-12-15 2018-07-20 河南省正大环境科技咨询工程有限公司 A kind of vent gas catalytic cleaner
CN208252185U (en) * 2018-04-26 2018-12-18 四川绵阳华元航升环保科技有限公司 A kind of vehicle exhaust catalysis core
CN109281734A (en) * 2018-09-10 2019-01-29 四会市新亚商绿环保科技有限公司 A kind of automobile speed-raising energy-saving and purifying catalyst converter
CN109236433A (en) * 2018-10-24 2019-01-18 刘锋 It is a kind of for purifying the three-way catalytic apparatus of vehicle exhaust
CN209244642U (en) * 2018-12-29 2019-08-13 无锡同益环保科技有限公司 A kind of hollow type honeycomb substrate
CN211623524U (en) * 2019-12-31 2020-10-02 广西柳州宇阳节能科技有限公司 Automobile exhaust administers device
CN111608770A (en) * 2020-04-23 2020-09-01 新昌县羽林街道巨晖机械厂 But real-time supervision's high-efficient automobile exhaust catalytic converter
CN112682138A (en) * 2020-12-25 2021-04-20 深圳大学 Motor vehicle exhaust converter with non-uniformly arranged microchannels and manufacturing method thereof

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