CN109184869B - Automobile exhaust purifier - Google Patents
Automobile exhaust purifier Download PDFInfo
- Publication number
- CN109184869B CN109184869B CN201811241902.9A CN201811241902A CN109184869B CN 109184869 B CN109184869 B CN 109184869B CN 201811241902 A CN201811241902 A CN 201811241902A CN 109184869 B CN109184869 B CN 109184869B
- Authority
- CN
- China
- Prior art keywords
- catalytic carrier
- catalytic
- automobile exhaust
- density
- gas
- 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 - Fee Related
Links
- 230000003197 catalytic effect Effects 0.000 claims abstract description 69
- 239000007789 gas Substances 0.000 claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 238000005452 bending Methods 0.000 claims description 13
- 239000003054 catalyst Substances 0.000 claims description 13
- 230000017525 heat dissipation Effects 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 claims description 3
- 238000006479 redox reaction Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000002411 adverse Effects 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
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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
-
- 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
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
-
- 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
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
- F01N11/002—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus
-
- 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
- F01N9/00—Electrical control of exhaust gas treating apparatus
-
- 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
- Y02T10/40—Engine management systems
Landscapes
- 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 Gas After Treatment (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention belongs to the field of automobiles and the field of environmental protection, and particularly relates to an automobile exhaust purifier, which comprises a gas density detector and a temperature sensor; detecting the concentration of harmful gases in the automobile exhaust through a gas density detector; according to the shape and the length of the catalytic carrier in the automobile exhaust purifier, the harmful gas concentration can be detected, so that the automobile exhaust containing the harmful gas with different concentrations can be fully reacted to be changed into harmless gas, and the adverse effect on air caused by insufficient environmental pollution due to tail gas reaction can be prevented.
Description
Technical Field
The invention belongs to the field of automobiles and environmental protection, and particularly relates to an automobile exhaust purifier.
Background
The three-way catalyst is mainly used for oxidizing harmful gases in automobile exhaust into harmless gases through a catalytic carrier containing the three-way catalyst, and then the harmless gases are discharged into the air to prevent air pollution. For example, a new type of automobile exhaust purifier (refer to patent document CN201620955394.0) is a patent product of tianjingjit automobile exhaust purifier ltd, and an automobile exhaust purifier (refer to patent document CN201721009299.2) is a patent product of jiangsu environmental technology ltd, which can adjust the working temperature.
Disclosure of Invention
The invention provides a novel automobile exhaust purifier which can adjust the catalytic reaction time of exhaust according to the concentration of harmful gas in automobile exhaust and prevent the exhaust from reacting insufficiently.
The device comprises a catalytic part, a detection part and a control part, wherein the control part controls the structure adjustment of the catalytic part according to the detection result of the detection part;
the catalytic portion includes:
a housing;
the catalytic carrier is a honeycomb horizontal long straight pipe formed by a plurality of fine pipelines and a large pipeline together, all the pipelines are metal corrugated hoses, the plurality of fine pipelines are closely arranged in the large pipeline, the large pipeline is connected with an air inlet, the inner wall and the outer wall of each fine pipeline are sprayed with a three-way catalyst, and the middle part of the outer wall of the large pipeline is connected with the shell through a fixing block;
a plurality of compression bars positioned inside the housing and arranged on the upper side of the catalytic carrier in order;
the motor is connected with the pressure rod and is used for driving the pressure rod to move in the vertical direction;
the heat dissipation water pipe is wound on the outer wall of the catalytic carrier and is filled with cold water;
the water pump is connected with the heat dissipation water pipe and is used for driving cold water in the heat dissipation water pipe to flow;
the detection section includes:
the gas density detector is arranged at an air inlet of the automobile exhaust purifier and is used for detecting the density of untreated exhaust, and the density is in direct proportion to the content of harmful gases in the exhaust;
a distance sensor provided on the housing for detecting a distance between the catalytic carrier and the housing;
the temperature sensor is arranged at an air inlet of the automobile exhaust purifier and used for detecting the temperature of untreated exhaust;
the control section is configured to:
when the density is lower than a set first standard value, the content of harmful gases in the tail gas is low, the catalytic carrier is kept in a horizontal long and straight state and is unchanged, and the automobile tail gas enters the catalytic carrier through the air inlet, is oxidized and reduced by the three-way catalyst and then is discharged from the air outlet of the automobile tail gas purifier;
when the density is higher than a set first standard value, indicating that the content of harmful gases in the tail gas is more, controlling the motor to drive the pressure rod to move downwards, and bending and stretching the metal corrugated hose of the catalytic carrier under the action of the pressure rod, so that the time for the tail gas to pass through the catalytic carrier is prolonged, the flow speed is slowed, and the oxidation-reduction reaction of the tail gas is more sufficient; the bending degree of the catalytic carrier is in direct proportion to the concentration, namely the higher the concentration is, the larger the displacement of the motor driving the pressure rod to move is until the distance sensor detects that the catalytic carrier is attached to the shell, and at the moment, the maximum bending degree of the catalytic carrier is reached;
after the catalytic carrier is bent and deformed, when the density is reduced to be below the standard value, the motor is controlled to rotate reversely to drive the compression bar to move back, the bending degree of the catalytic carrier is gradually reduced, and the catalytic carrier is restored to a horizontal long and straight state until the compression bar returns to the original position;
when the temperature is higher than a set second standard value, the water pump is controlled to work, so that cold water in the heat dissipation water pipe flows, the temperature of the catalytic carrier is reduced, and the catalyst and the catalytic carrier are prevented from being damaged due to overhigh temperature.
The invention has the beneficial effects that: the length of the catalytic carrier in the automobile exhaust purifier is changed according to the detected density of the harmful gas, so that the automobile exhaust containing the harmful gas with different densities can be fully reacted to be changed into harmless gas, and the temperature of the catalytic carrier is adjusted according to the detected temperature of the exhaust, so that the catalyst in the catalytic carrier keeps higher activity; and the adverse effects on air caused by insufficient reaction of tail gas and environmental pollution are prevented.
Drawings
FIG. 1 illustrates a side view of an automotive exhaust purifier;
FIG. 2 shows a side view of the catalyst after bending of the catalytic substrate;
FIG. 3 shows a cross-sectional view of the housing;
fig. 4 shows a block diagram of the components of the automobile exhaust purifier.
Detailed Description
The structure of the present system and the functions performed are described in detail below with reference to the accompanying drawings.
An automobile exhaust purifier comprises an automobile exhaust detector, a catalytic part and a control part, wherein
The catalytic portion 1 includes:
a housing 11;
the catalytic carrier 12 is a honeycomb-shaped long pipe positioned in the shell 11 of the automobile exhaust purifier and consists of a plurality of fine pipelines and a large pipeline, the fine pipelines are orderly and tightly arranged in the large pipeline, the large pipeline is connected with an air inlet, all the pipelines are metal corrugated hoses, a three-way catalyst is sprayed inside and outside each fine pipeline, the catalytic carrier 12 is in an initial state of a horizontal long straight pipe, and the middle part of the outer pipe wall of the catalytic carrier 12 is connected with the shell 11 through a fixed block;
the plurality of compression bars 13 are positioned inside the shell 11 of the automobile exhaust purifier and are orderly distributed on the upper side of the catalytic carrier 12;
the motor 14 is connected with the pressure rod 13 and is used for driving the pressure rod 13 to displace in the vertical direction;
the heat dissipation water pipe 15 is arranged inside the catalytic shell 11, part of the heat dissipation water pipe is uniformly wound on the outer wall of the catalytic carrier 12, and cold water is filled in the water pipe;
the water pump 16 is arranged in the catalytic shell 11 and used for driving cold water in the heat dissipation water pipe to flow;
the detection unit 2 includes:
the gas density detector 21 is arranged at the air inlet of the automobile exhaust purifier and is used for detecting the density of the untreated automobile exhaust at the air inlet, and the density is in direct proportion to the content of harmful gases in the automobile exhaust;
a distance sensor 22 provided on the casing 11 for detecting the distance between the catalytic carrier 12 and the casing 11;
the infrared temperature detector 23 is arranged at the position of an air inlet of the automobile exhaust purifier and is used for detecting the temperature of untreated automobile exhaust at the air inlet;
the control section 3 is configured to:
detecting the density of the automobile exhaust through a gas density detector 21, and detecting the temperature of the automobile exhaust through an infrared temperature detector 23;
when the density of the automobile exhaust is detected to be smaller than a set first standard value, the content of harmful gas in the automobile exhaust is low, the automobile exhaust enters the catalytic carrier 12 through the air inlet, the catalytic carrier 12 keeps the original state unchanged, and the harmful gas in the exhaust is oxidized and reduced into harmless gas through the three-way catalyst and then is discharged from the air outlet at the other end of the catalytic carrier 12;
when the automobile exhaust gas density is detected to be greater than a first standard value, the content of harmful gases in the automobile exhaust gas is high, the motor 14 is controlled to rotate, the pressure rod 13 moves downwards along the movement track, the catalytic carrier 12 is stretched by the pressure rod 13, and a horizontal straight pipeline is changed into a bent pipeline, so that the time for the automobile exhaust gas to pass through the catalytic carrier 12 is prolonged, and the harmful gases in the automobile exhaust gas fully react in the catalytic carrier 12; the bending degree of the catalytic carrier 12 is in direct proportion to the concentration of harmful gases in the automobile exhaust, namely the motor 14 is controlled to rotate when the detected automobile exhaust density is higher, the larger the displacement generated by driving the pressing rod 13 is, the larger the bending degree of the catalytic carrier 12 is until the pressing rod 13 moves to the maximum position, namely the distance sensor 21 detects that the catalytic carrier 12 is attached to the shell 11, and the catalytic carrier 12 is shown to reach the maximum bending degree;
after the catalytic carrier 12 is bent and deformed, when the density of the automobile exhaust is detected to be reduced to be below a set standard value, the motor 14 is controlled to rotate reversely to drive the pressure rod 13 to move back, namely the pressure rod 13 moves upwards along the movement track of the pressure rod, the bending degree of the catalytic carrier 12 is gradually reduced until the pressure rod 13 returns to the original position, and the catalytic carrier 12 is changed into a straight pipeline;
when the temperature of the automobile exhaust is detected to be higher than a set second standard value, the water pump 16 is controlled to work, so that cold water in the heat dissipation water pipe 15 flows, the temperature of the catalytic carrier 12 is reduced, and the catalyst and the catalytic carrier 12 are prevented from being damaged due to overhigh temperature.
It will be appreciated by persons skilled in the art that numerous variations and/or modifications may be made to the invention as shown in the specific embodiments without departing from the spirit or scope of the invention as broadly described. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. Likewise, the invention encompasses any combination of features, in particular of features in the patent claims, even if this feature or this combination of features is not explicitly specified in the patent claims or in the individual embodiments herein.
Claims (1)
1. An automobile exhaust purifier comprises a catalytic part, a detection part and a control part, wherein the control part controls the structure adjustment of the catalytic part according to the detection result of the detection part; characterized in that the catalytic part comprises:
a housing;
the catalytic carrier is a honeycomb horizontal long straight pipe formed by a plurality of fine pipelines and a large pipeline together, all the pipelines are metal corrugated hoses, the plurality of fine pipelines are closely arranged in the large pipeline, the large pipeline is connected with an air inlet, the inner wall and the outer wall of each fine pipeline are sprayed with a three-way catalyst, and the middle part of the outer wall of the large pipeline is connected with the shell through a fixing block;
a plurality of compression bars positioned inside the housing and arranged on the upper side of the catalytic carrier in order;
the motor is connected with the pressure rod and is used for driving the pressure rod to move in the vertical direction;
the heat dissipation water pipe is wound on the outer wall of the catalytic carrier and is filled with cold water;
the water pump is connected with the heat dissipation water pipe and is used for driving cold water in the heat dissipation water pipe to flow;
the detection section includes:
the gas density detector is arranged at an air inlet of the automobile exhaust purifier and is used for detecting the density of untreated exhaust, and the density is in direct proportion to the content of harmful gases in the exhaust;
a distance sensor provided on the housing for detecting a distance between the catalytic carrier and the housing;
the temperature sensor is arranged at an air inlet of the automobile exhaust purifier and used for detecting the temperature of untreated exhaust;
the control section is configured to:
when the density is lower than a set first standard value, the content of harmful gases in the tail gas is low, the catalytic carrier is kept in a horizontal long and straight state and is unchanged, and the automobile tail gas enters the catalytic carrier through the air inlet, is oxidized and reduced by the three-way catalyst and then is discharged from the air outlet of the automobile tail gas purifier;
when the density is higher than a set first standard value, indicating that the content of harmful gases in the tail gas is more, controlling the motor to drive the pressure rod to move downwards, and bending and stretching the metal corrugated hose of the catalytic carrier under the action of the pressure rod, so that the time for the tail gas to pass through the catalytic carrier is prolonged, the flow speed is slowed, and the oxidation-reduction reaction of the tail gas is more sufficient; the bending degree of the catalytic carrier is in direct proportion to the concentration of harmful gas, namely the higher the concentration of the harmful gas is, the larger the displacement of the motor driving the pressing rod to move is until the distance sensor detects that the catalytic carrier is attached to the shell, and at the moment, the maximum bending degree of the catalytic carrier is reached;
after the catalytic carrier is bent and deformed, when the density is reduced to be below the standard value, the motor is controlled to rotate reversely to drive the compression bar to move back, the bending degree of the catalytic carrier is gradually reduced, and the catalytic carrier is restored to a horizontal long and straight state until the compression bar returns to the original position;
when the temperature is higher than a set second standard value, the water pump is controlled to work, so that cold water in the heat dissipation water pipe flows, the temperature of the catalytic carrier is reduced, and the catalyst and the catalytic carrier are prevented from being damaged due to overhigh temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811241902.9A CN109184869B (en) | 2018-10-24 | 2018-10-24 | Automobile exhaust purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811241902.9A CN109184869B (en) | 2018-10-24 | 2018-10-24 | Automobile exhaust purifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109184869A CN109184869A (en) | 2019-01-11 |
| CN109184869B true CN109184869B (en) | 2020-09-04 |
Family
ID=64942986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811241902.9A Expired - Fee Related CN109184869B (en) | 2018-10-24 | 2018-10-24 | Automobile exhaust purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109184869B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738597A (en) * | 2019-03-21 | 2019-05-10 | 瑞德(新乡)路业有限公司 | A kind of remote vehicle emissions monitoring device mounting base |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1502861A1 (en) * | 1985-12-02 | 1989-08-23 | Карагандинский политехнический институт | Catalytic gas cleaner for ic-engine |
| KR100494407B1 (en) * | 2002-04-11 | 2005-06-13 | 현대자동차주식회사 | Catalytic having a variable catalytic pellet and control mathod thereof |
| DE10217259A1 (en) * | 2002-04-18 | 2003-11-13 | Emitec Emissionstechnologie | Catalyst carrier body with corrugated jacket and process for its production |
| CN107420166B (en) * | 2017-07-03 | 2019-07-16 | 德阳鑫邦特环保科技有限责任公司 | A kind of ternary catalyzing unit for vehicle maintenance service |
| CN207195008U (en) * | 2017-08-14 | 2018-04-06 | 江苏几维环境科技有限公司 | Novel three-way catalyst |
| CN109236433B (en) * | 2018-10-24 | 2020-09-25 | 瑞安市奔马轿车维修有限公司 | Ternary catalytic device for purifying automobile exhaust |
| CN109488425B (en) * | 2018-10-24 | 2020-09-18 | 瑞安市红迷电子商务有限公司 | Three-way catalytic converter |
-
2018
- 2018-10-24 CN CN201811241902.9A patent/CN109184869B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN109184869A (en) | 2019-01-11 |
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Effective date of registration: 20200724 Address after: Room 1805, building 2, Fuchen Business Plaza, Xinbei District, Changzhou City, Jiangsu Province Applicant after: Changzhou MAIYUE Semiconductor Co.,Ltd. Address before: 230000 Mengyuan District, Xiangzhang Avenue, Shushan District, Hefei City, Anhui Province Applicant before: Liu Feng |
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Effective date of registration: 20200813 Address after: Room 11, 17 / F, waita commercial building, 1a-1l Tong Choi Street, Kowloon, Hong Kong, China Applicant after: Xiangxingsheng Porcelain Art Co.,Ltd. Address before: Room 1805, building 2, Fuchen Business Plaza, Xinbei District, Changzhou City, Jiangsu Province Applicant before: Changzhou MAIYUE Semiconductor Co.,Ltd. |
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Effective date of registration: 20201123 Address after: Room 368, administrative service center, cluster district, Taizhou, Zhejiang Province Patentee after: Hengzhiyu Trading Co.,Ltd. Address before: Room 11, 17 / F, waita commercial building, 1a-1l Tong Choi Street, Kowloon, Hong Kong, China Patentee before: Xiangxingsheng Porcelain Art Co.,Ltd. |
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