CN2242724Y - Ternary purifying device for tail gas of automobile - Google Patents
Ternary purifying device for tail gas of automobile Download PDFInfo
- Publication number
- CN2242724Y CN2242724Y CN94229859U CN94229859U CN2242724Y CN 2242724 Y CN2242724 Y CN 2242724Y CN 94229859 U CN94229859 U CN 94229859U CN 94229859 U CN94229859 U CN 94229859U CN 2242724 Y CN2242724 Y CN 2242724Y
- Authority
- CN
- China
- Prior art keywords
- automobile
- tail gas
- purifying
- ternary
- bed
- 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
Images
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 ternary purifying device for tail gas of an automobile, which is composed of a purifying bed, a front chamber (2) and a back chamber (3). The utility model can accomplish purifying and processing the tail gas of an automobile in a ternary mode. The front chamber (2) deoxidizes and purifies NOX compounds, and the back chamber (3) deoxidizes and purifies CO and HC compounds. The ternary purifying device for tail gas of an automobile is also provided with a temperature sensor (6), and is interlocked with a three-way valve (9). When the temperature of the purifying bed is higher than the set control temperature, the ternary purifying device for tail gas of an automobile can bypass the tail gas of the automobile to a silencer right away. The utility model reliably preserves the service life of catalysts. The purifying bed is made of rare earth metal catalyst honeycomb ceramic. The utility model has simple structure and good performance, and is easy to produce and popularize.
Description
The utility model relates to the very big vehicle exhaust of ambient air harm is carried out the device of purified treatment.
The recoverable amount of present China automobile increases year by year along with cause of modernization is growing.
Data shows according to the relevent statistics: in the whole world because the partial combustion of various fuel.To enter carbon monoxide (CO) to atmosphere in 1 year and have more than 200,000,000 ton approximately.And the carbon monoxide (CO) that automobile is discharged has more than 100,000,000 ton.Account for carbon monoxide (CO) year always the amount of entering 50%.As seen vehicle exhaust is to the seriousness of environmental quality influence.
In the face of the serious day by day problem of pollution of atmosphere, caused domestic and international relevant department and numerous scientific workers' height concern.Cause China since 85 years carry out Patent Law, 100 multinomial patents in this technical field, to occur.
The major pollutants of vehicle exhaust have: CO, HC, NO
xAnd a spot of SO
2With Pb etc.Two of backs are very little because of proportion, so only first three items is administered.So be called the three-element purifying device.
But in the prior art in this field, the three-element purifying Design of device is still rare at present.Having retrieved in 85 years 100 multinomial patented technologies till now, be to see the CN1070984A only from the patent No..The inventor introduces ozone---the catalyzer purification craft.Condition is to need an ozonizer, and its technology can realize.Obviously deficiency just here.Ozonizer cost height, volume is big, weight is many, and that this and automobile require itself is in light weight, volume is little, cost is low incompatible.
Also see the design that the patent No. is CN2106895u and CN2076606u.Although be provided with a plurality of purifying chambers.But key is the neither one purifying chamber and imports fresh air, so can not play the effect of three-element purifying.Remain and belong to binary purification scope.
The purpose of the utility model design is to provide that a kind of volume is little, in light weight, cost is low and can have CO, the HC of purification and NO
xThe three-element purifying device of three kinds of toxic pollutant performances.
The purpose of this utility model is achieved in that
The design of purifying chamber is divided into two sections.Promptly be divided into cup and chamber, back.Cup is used for to NO
xReduce purified treatment.Back chamber is used for CO and HC are carried out oxidation processes.Clean-up bed adopts honeycomb pottery money rare-earth metal catalyst to make.This is because the catalytic activity of rare-earth metal catalyst is purifying CO, HC and NO
xIn effect best.But itself be not participate in chemical reaction.Only be that activation, accelerating oxidation reaction or reduction reaction are carried out more fully.To reach the purpose that improves its purification efficiency.
At cup to NO
xThe mechanism of carrying out purified treatment is: utilize that contained CO and HC make reducing agent in the tail gas.Under the activation of rare-earth metal catalyst, carrying out the chemical reaction of fullest.Its reaction equation is as follows:
Mechanism in the chamber, back to CO and HC operation purified treatment is: the oxygenant when oxidation processes is carried out in the fresh air conduct that utilizes the ad hoc compression pump of this device to offer the chamber, back.And under the activation of rare-earth metal catalyst, finish sufficient oxidation reaction.Its reactional equation is as follows:
When vehicle exhaust flow through cup with after after the chamber, then tail gas carries out reduction reaction and oxidation reaction immediately.The tail gas of bleeder is promptly to CO, HC and NO
xThree kinds of harmful gases purify.Its purifying effect can reach the ideal value more than 90%.
Concrete structure of the present utility model is provided by the following examples and accompanying drawing:
Figure one is the sectional drawing according to the three-element purifying device that the utility model proposes.
Figure two is A-A sectional drawings.
Can find out concrete structure and the operational detail of three-element purifying device that the utility model proposes by figure one.
This device mainly is that cylindrical shell (1) is arranged; Clean-up bed cup (2); Chamber behind the clean-up bed (3);
Between two Room, be provided with spacer (7), and have vent, and the head of air duct (11) connects with this pore at the spacer middle part.Its afterbody then connects compression pump (10), and behind automobile starting, then compression pump (10) provides oxidation processes needed oxygen by tracheae (11) and spacer (7) middle part pore chamber (3) behind clean-up bed.
Be provided with threeway in the ingress that vehicle exhaust enters this device and cut down (9) and bypass tube (8).The outlet port then is provided with temperature transducer (6).And sensor (6) cuts down (9) with threeway and interlocks.Promptly when the control temperature (for example 800 ℃) of the temperature 〉=setting of clean-up bed, sensor provides signal, and threeway is at this moment cut down (9) and closed the passage that gas enters clean-up bed immediately.Connect bypass tube (8) simultaneously.Tail gas can be in line be gone in the silencing apparatus.Guarantee that clean-up bed is operated within the control temperature range of setting.To improve the working life of device.
Clean-up bed cup (2) and chamber (3), back, employed material and structure have important effect to improving purification efficiency.This device adopts the ceramic honey comb material with rare-earth metal catalyst.And make the sheet composite structure.Cup is formed by 5, and back chamber is formed by 7.
Claims (4)
1, the three-element purifying device of this vehicle exhaust is at NO
xDesign with the different purification mechanisms of CO, HC, the former is a reduction reaction, the latter then is an oxidation reaction, so the clean-up bed of device is provided with cup (2) and chamber (3), back, spacer (7) is arranged between two Room, it is characterized in that the middle part of spacer (7) has vent, and the head of air duct (11) connects with this pore, its afterbody then connects compression pump (10), and secondly temperature transducer (6) cuts down (9) interlocking with the threeway of bypass tube.
2,, it is characterized in that spacer (7) middle part pore connects with air duct (11) according to the described device of claim 1.
3,, it is characterized in that temperature transducer (6) and threeway cut down (9) interlocking, and threeway is cut down (9) and is communicated with bypass tube (8) according to the described device of claim 1.
4, according to the described device of claim 1.It is characterized in that the clean-up bed employing has the ceramic honey comb material of rare-earth metal catalyst, and make the composite structure of sheet, cup is formed by 5, and back chamber is formed by 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94229859U CN2242724Y (en) | 1994-11-16 | 1994-11-16 | Ternary purifying device for tail gas of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94229859U CN2242724Y (en) | 1994-11-16 | 1994-11-16 | Ternary purifying device for tail gas of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2242724Y true CN2242724Y (en) | 1996-12-18 |
Family
ID=33842095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94229859U Expired - Fee Related CN2242724Y (en) | 1994-11-16 | 1994-11-16 | Ternary purifying device for tail gas of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2242724Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101395351B (en) * | 2006-02-28 | 2012-07-11 | 约翰逊马西有限公司 | Exhaust system for a spark-ignited internal combustion engine |
-
1994
- 1994-11-16 CN CN94229859U patent/CN2242724Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101395351B (en) * | 2006-02-28 | 2012-07-11 | 约翰逊马西有限公司 | Exhaust system for a spark-ignited internal combustion engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20080141660A1 (en) | Catalyst And System For Reducing Exhaust Of Diesel Engines | |
| US20090169451A1 (en) | Catalytic reduction of NOx | |
| CN1171007C (en) | Purifying system for high power output and low-temp tail gas discharge of IC engine | |
| CN108049943B (en) | Diesel exhaust particulate object carbon black purifying processing device and method | |
| CN210118186U (en) | Environment-friendly automobile exhaust treatment device | |
| CN2242724Y (en) | Ternary purifying device for tail gas of automobile | |
| JPH10118457A (en) | Exhaust gas cleaning apparatus for internal combustion engine | |
| CN1246070C (en) | Rarefied-burning automobile exhaust gas catalyzing and purifying method and apparatus | |
| CN203978566U (en) | A kind of inserting type automobile catalytic converter device | |
| CN220285850U (en) | Tail gas purifying system of gasoline generator | |
| CN100387326C (en) | Method and device for purifying tail gas of universal small gasoline engine | |
| CN202284489U (en) | Emission reduction device for diesel generator set | |
| CN2849177Y (en) | Tail gas purifier for general small gasoline engine | |
| CN219472184U (en) | Exhaust system | |
| CN1102695C (en) | Exhaust silencing and purifying device for compression ignition diesel engine | |
| CN2357135Y (en) | Metal carrier exhausting purifying silencer for motor-vehicle | |
| JPH0663359A (en) | Nitrogen oxides purifying method and waste gas treating device | |
| CN2508002Y (en) | High power output, exhaust gas low-temp exhausting and purifying device for IC engine | |
| CN212523677U (en) | Tail gas purification treatment device for engine test bed | |
| CN2433392Y (en) | Noise silencing and purification apparatus for tail gas of vehicle | |
| Twigg | Development of platinum catalysts and their use in the control of vehicle exhaust emissions | |
| CN201763422U (en) | Ternary catalytic converter | |
| CN1673496A (en) | Method for raising purifying nitrogen oxide effect of catalyst in locomotive gas vent | |
| JP3345927B2 (en) | How to clean diesel engine exhaust | |
| CN204152601U (en) | Exhaust purifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |