CN204152599U - Trapezoidal exhaust gas filter - Google Patents
Trapezoidal exhaust gas filter Download PDFInfo
- Publication number
- CN204152599U CN204152599U CN201420474056.6U CN201420474056U CN204152599U CN 204152599 U CN204152599 U CN 204152599U CN 201420474056 U CN201420474056 U CN 201420474056U CN 204152599 U CN204152599 U CN 204152599U
- Authority
- CN
- China
- Prior art keywords
- exhaust gas
- next door
- rose box
- hypotenuse
- arc
- 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
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
The utility model relates to a kind of trapezoidal exhaust gas filter.It comprises Rose Box (1), is provided with filter screen (2) and ceramic honeycomb carrier (3) in described Rose Box (1).A kind of trapezoidal exhaust gas filter of the utility model, under filter screen and ceramic honeycomb carrier double-filtration, is the tail gas of CO, HC, NOx by main component, is reacted into CO
2, H
2o, N
2and O
2, the micropore simultaneously on next door can black smoke particle effectively in filtering exhaust, and under the effect of catalyst coat black smoke particle can burned fall, further increase tail gas clean-up effect.
Description
Technical field
The utility model relates to a kind of trapezoidal exhaust gas filter, for purifying vehicle exhaust.Belong to automobile equipment technical field.
Background technique
At present, common automobile exhaust filter uses NO, the NO in catalyzer and vehicle exhaust
2react with CO, generate CO
2and N
2these two kinds of uncontaminated gases, but the automobile being equipped with diesel engine, owing to containing black smoke particle in the tail gas of diesel engine, existing exhaust gas filter can not effectively filter black smoke particle, can cause environmental pollution like this.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency; provide a kind of trapezoidal exhaust gas filter; this exhaust gas filter also can filter black smoke particle while filtering CO, HC, NOx harmful gas in vehicle exhaust, and at high temperature black smoke particle can progressively burn and be oxidized.
The purpose of this utility model is achieved in that
A kind of trapezoidal exhaust gas filter, comprise Rose Box, be characterized in: in described Rose Box, be provided with filter screen and ceramic honeycomb carrier, described Rose Box comprises the first arc-shaped edges, second arc-shaped edges, first hypotenuse and the second hypotenuse, described first arc-shaped edges, second hypotenuse, second arc-shaped edges and the first hypotenuse join end to end successively, connecting place adopts round-corner transition, described ceramic honeycomb carrier is densely covered with pore in the axial direction, one end of described pore is opening, the other end is provided with shutoff face, described shutoff face and open space are arranged, described adjacent two pores are provided with next door, next door have in cellular micropore, next door is coated with catalyst coat.
A kind of trapezoidal exhaust gas filter of the utility model, the hole count of its pore is 600 holes/square inch.
A kind of trapezoidal exhaust gas filter of the utility model, the thickness in its next door is 0.13 ~ 0.14mm.
Compared with prior art, the beneficial effects of the utility model are:
A kind of trapezoidal exhaust gas filter of the utility model, under filter screen and ceramic honeycomb carrier double-filtration, is the tail gas of CO, HC, NOx by main component, is reacted into CO
2, H
2o, N
2and O
2, the micropore simultaneously on next door can black smoke particle effectively in filtering exhaust, and under the effect of catalyst coat black smoke particle can burned fall, further increase tail gas clean-up effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of trapezoidal exhaust gas filter of the utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the schematic cross-section of ceramic honeycomb carrier of the present utility model.
Fig. 4 is the partial axial section figure of ceramic honeycomb carrier of the present utility model.
Fig. 5 is the structural representation in the next door of ceramic honeycomb carrier of the present utility model.
In figure:
Rose Box 1,
First arc-shaped edges 1.1,
Second arc-shaped edges 1.2,
First hypotenuse 1.3,
Second hypotenuse 1.4,
Filter screen 2,
Ceramic honeycomb carrier 3,
Pore 3.1,
Shutoff face 3.2,
Next door 3.3,
Micropore 3.4,
Catalyst coat 3.5
Opening 3.6,
Inlet exhaust gas 4,
Offgas outlet 5,
Tail gas 6.
Embodiment
See Fig. 1-5, the utility model relates to a kind of trapezoidal exhaust gas filter, it comprises Rose Box 1, filter screen 2 and ceramic honeycomb carrier 3, the left end of Rose Box 1 is inlet exhaust gas 4, right-hand member is offgas outlet 5, described filter screen 2 and ceramic honeycomb carrier 3 are arranged in Rose Box 1, filter screen 2 is near inlet exhaust gas 4 place, described Rose Box 1 comprises the first arc-shaped edges 1.1, second arc-shaped edges 1.2, first hypotenuse 1.3 and the second hypotenuse 1.4, described first arc-shaped edges 1.1, second hypotenuse 1.4, second arc-shaped edges 1.2 and the first hypotenuse 1.3 join end to end successively, connecting place adopts round-corner transition, the shape of described ceramic honeycomb carrier 3 is corresponding with Rose Box 1, and ceramic honeycomb carrier 3 is densely covered with pore 3.1 in the axial direction, one end of described pore 3.1 is opening 3.6, the other end is provided with shutoff face 3.2, described shutoff face 3.2 and opening 3.6 interval are arranged, described adjacent two pores 3.1 are provided with next door 3.3, next door 3.3 have in cellular micropore 3.4, next door 3.3 is coated with catalyst coat 3.5.
Wherein, the hole count of pore 3.1 is 600 holes/square inch, and the thickness in next door 3.3 is 0.13 ~ 0.14mm.
Working principle: the utility model adopts cordierite to be made into honeycomb ceramic carrier, and be built in exhaust purifier of diesel engine, the waste gas inlet exhaust gas 4 with black smoke particle that diesel engine is discharged enters, through the single filter of filter screen 2, then ceramic honeycomb carrier 3 is entered, enter from the opening 3.6 of pore 3.1, because pore 3.1 is at one end opening 3.6, then shutoff face 3.2 at the other end, therefore waste gas can by the next door 3.3 with micropore 3.4, then discharge from the opening 3.6 of adjacent air holes 3.1, due to the diameter of black smoke particle, comparatively micropore 3.4 is large, therefore the black smoke particle in waste gas will be filtered and catch on next door 3.3, air-flow then passes from micropore 3.4.
The active rare earth of described catalyst coat 3.5 containing precious metal, Main Ingredients and Appearance has Pt, Pd, Rh, Al
2o
3, Ce, La, Zr, Cu, Mn, when the waste gas (being mainly the harmful gases such as CO, HC, NOx) of diesel combustion is through micropore 3.4, the catalyst coat 3.5 be coated on next door 3.3 will strengthen CO, HC, NO
xthe activity of three kinds of gases, impel it to carry out certain oxidationreduction chemical reaction, wherein CO is at high temperature oxidized to colourless nontoxic carbon dioxide, and HC compound at high temperature resolves into water (H
2o) and carbon dioxide, NO
xbe reduced into nitrogen and oxygen.
When diesel exhaust gas temperature reaches 375 degrees Celsius; under the effect of catalyst coat 3.5; black smoke particle on next door 3.3 can progressively burn and be oxidized; the purification ratio of black smoke particle about reaches more than 85%; catalyzer and black smoke particle reaction when reaction temperature reaches 500 degrees Celsius thus perfect combustion are fallen (catalytic combustion), and now the purification ratio of black smoke particle can reach more than 90%.
Claims (3)
1. a trapezoidal exhaust gas filter, comprise Rose Box (1), it is characterized in that: in described Rose Box (1), be provided with filter screen (2) and ceramic honeycomb carrier (3), described Rose Box (1) comprises the first arc-shaped edges (1.1), second arc-shaped edges (1.2), first hypotenuse (1.3) and the second hypotenuse (1.4), described first arc-shaped edges (1.1), second hypotenuse (1.4), second arc-shaped edges (1.2) and the first hypotenuse (1.3) join end to end successively, connecting place adopts round-corner transition, described ceramic honeycomb carrier (3) is densely covered with pore (3.1) in the axial direction, one end of described pore (3.1) is opening (3.6), the other end is provided with shutoff face (3.2), described shutoff face (3.2) and opening (3.6) interval are arranged, described adjacent two pores (3.1) are provided with next door (3.3), next door (3.3) has in cellular micropore (3.4), next door (3.3) is coated with catalyst coat (3.5).
2. the trapezoidal exhaust gas filter of one according to claim 1, is characterized in that: the hole count of described pore (3.1) is 600 holes/square inch.
3. the trapezoidal exhaust gas filter of one according to claim 1 and 2, is characterized in that: the thickness of described next door (3.3) is 0.13 ~ 0.14mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420474056.6U CN204152599U (en) | 2014-08-22 | 2014-08-22 | Trapezoidal exhaust gas filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420474056.6U CN204152599U (en) | 2014-08-22 | 2014-08-22 | Trapezoidal exhaust gas filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204152599U true CN204152599U (en) | 2015-02-11 |
Family
ID=52510723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420474056.6U Expired - Fee Related CN204152599U (en) | 2014-08-22 | 2014-08-22 | Trapezoidal exhaust gas filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204152599U (en) |
-
2014
- 2014-08-22 CN CN201420474056.6U patent/CN204152599U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20200822 |