CN107542534A - Noise reducing type exhaust gas filter - Google Patents
Noise reducing type exhaust gas filter Download PDFInfo
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- CN107542534A CN107542534A CN201610470452.5A CN201610470452A CN107542534A CN 107542534 A CN107542534 A CN 107542534A CN 201610470452 A CN201610470452 A CN 201610470452A CN 107542534 A CN107542534 A CN 107542534A
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- Prior art keywords
- gas
- filter
- pipe
- reducing type
- noise reducing
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Abstract
The present invention relates to a kind of noise reducing type exhaust gas filter.It includes the downtake pipe of connection automobile engine（2）, and connection downtake pipe（2）" mouth " font gas-distributing pipe（3）, and connection gas-distributing pipe（3）Second exhaust pipe（4）, gas-distributing pipe（3）Inside it is provided with filter（1）, filter（1）Including cylinder（1.1）, cylinder（1.1）Interior edge airflow direction is disposed with screen pack（1.2）And ceramic honeycomb carrier（1.3）, ceramic honey comb surface is coated with acid-proof coating.A kind of noise reducing type exhaust gas filter of the present invention, acid resistance is good, and tail gas divides two-way to enter filter and carries out double-filtration, by the tail gas that main component is CO, HC, NOx, react into CO in the presence of gas-distributing pipe2、H2O、N2And O2, while the micropore on next door can effectively filter the black smoke particle in waste gas, the tail gas after filtering enters the noise reduction disk noise reduction of second exhaust pipe, ensure that the normal life of people.
Description
Technical field
The present invention relates to a kind of noise reducing type exhaust gas filter, for purifying vehicle exhaust.Belong to automobile equipment technical field.
Background technology
At present, common automobile noise reduction type exhaust gas filter, it is using catalyst and NO, NO in vehicle exhaust2With CO
Reaction, generate CO2And N2Both uncontaminated gases, but the automobile of diesel engine is equipped with, due to the tail gas of diesel engine
In contain black smoke particle, existing noise reducing type exhaust gas filter can not effectively filter black smoke particle, can so cause environmental pollution；
Huge noise is also produced in automobilism, influences daily life, existing honeycomb substrate can not be effectively acidproof, causes
Its service life is short, can not meet the needs of client.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency, there is provided a kind of noise reducing type exhaust gas filter, this noise reducing type tail gas
Filter can also filter black smoke particle while CO, HC, NOx pernicious gas in filtering vehicle exhaust, and black at high temperature
Smoke particle can progressively burn and aoxidize, and noise when can effectively reduce automobile exhaust, and honeycomb substrate can be effectively acidproof.
The object of the present invention is achieved like this：
A kind of noise reducing type exhaust gas filter, is characterized in：The noise reducing type exhaust gas filter includes the of connection automobile engine
One blast pipe, and the gas-distributing pipe of " mouth " font of connection downtake pipe, and the second exhaust pipe of connection gas-distributing pipe, it is described to divide gas
Filter is provided with pipe, the noise reduction disk axially fastened is provided with the second exhaust pipe, the noise reduction disk is provided with
Main gas port and divide gas port, the filter includes cylinder, and cylinder interior edge airflow direction is disposed with screen pack and ceramic honeycomb
Carrier, the ceramic honeycomb carrier is corresponding with the inwall of cylinder, and ceramic honeycomb carrier is densely covered with stomata in the axial direction, institute
The one end for stating stomata is opening, and the other end is provided with closure face, the closure face and open space arrangement, the two neighboring gas
Hole is provided with next door, is provided with next door in cellular micropore, and catalyst coat, the honeycomb substrate surface are coated with next door
Coated with acid-proof coating, this acid-proof coating is mainly made up of following raw materials by weight portion proportioning：13 parts of quartz sand, petroleum coke 12
Part, 9 parts of wood chip, 8 parts of sodium chloride, 1 part of titanium dioxide, 13 parts of ethanol, 30 parts of water；
The preparation method of the acid-proof coating, is comprised the steps of：
（1）Quartz sand, petroleum coke and wood chip are pulverized, powder diameter is 400 mesh；
（2）By step（1）In powder and sodium chloride powder the input high temperature resistance furnace of acquisition, radiant heating, temperature is maintained at
1000 DEG C, 0.5 hour；
（3）Through step（2）Powder after pyrolytic semlting is with titania powder by weight 3:It is added to the water after 1 mixing, while stirring
Mix side and add ethanol thereto, microelectronics surface acid-proof coating can be obtained to all dissolvings.
A kind of noise reducing type exhaust gas filter of the present invention, its filter and downtake pipe joint and filter and second row
Tracheae joint is welded with air guide leaf.
A kind of noise reducing type exhaust gas filter of the present invention, its main gas port have one, and described to divide gas port to have multiple and arrangement be in three
It is angular.
A kind of noise reducing type exhaust gas filter of the present invention, the hole count of its stomata is 600 holes/square inch.
A kind of noise reducing type exhaust gas filter of the present invention, the thickness in its next door is 0.13 ~ 0.14mm.
Compared with prior art, the beneficial effects of the invention are as follows：
A kind of noise reducing type exhaust gas filter of the present invention, tail gas divides two-way to enter filter in the presence of gas-distributing pipe, screen pack with
Under ceramic honeycomb carrier double-filtration, by the tail gas that main component is CO, HC, NOx, CO is reacted into2、H2O、N2And O2, with after
Micropore on wall can effectively filter the black smoke particle in waste gas, and black smoke particle can be burned in the presence of catalyst coat
Fall, further increase tail gas clean-up effect；The noise reduction disk axially fastened is provided with second exhaust pipe, on the noise reduction disk
Provided with main gas port and divide gas port, noise during automobile exhaust can be effectively reduced；The present invention by by Raw material processing into aqua
The method of spraying, one kind, which is prepared, can be sprayed directly on ceramic honey comb surface, form one layer of densification, the protective layer of consolidation.
Brief description of the drawings
Fig. 1 is a kind of structural representation of noise reducing type exhaust gas filter of the present invention.
Fig. 2 is the structural representation of the filter of the present invention.
Fig. 3 is the schematic cross-section of the ceramic honeycomb carrier of the present invention.
Fig. 4 is the partial axial section figure of the ceramic honeycomb carrier of the present invention.
Fig. 5 is the structural representation in the next door of the ceramic honeycomb carrier of the present invention.
Fig. 6 is the structural representation of the noise reduction disk of the present invention.
In figure：
Filter 1,
Cylinder 1.1
Screen pack 1.2,
Ceramic honeycomb carrier 1.3,
Stomata 1.3.1,
Closure face 1.3.2,
Next door 1.3.3,
Micropore 1.3.4,
Catalyst coat 1.3.5
Be open 1.3.6,
Inlet exhaust gas 1.4,
Offgas outlet 1.5,
Downtake pipe 2,
Gas-distributing pipe 3,
Second exhaust pipe 4,
Noise reduction disk 5,
Main gas port 5.1,
Divide gas port 5.2,
Air guide leaf 6,
Tail gas 7.
Embodiment
Referring to Fig. 1, the present invention relates to a kind of noise reducing type exhaust gas filter, and it includes the first exhaust of connection automobile engine
Pipe 2, and the gas-distributing pipe 3 of " mouth " font of connection downtake pipe 2, and the second exhaust pipe of the gas-distributing pipe 3 of connection " mouth " font
4, filter 1 is provided with " mouth " the font gas-distributing pipe 3, and it is engaged with the joint of downtake pipe 2 and with second exhaust pipe 4
Place is welded with air guide leaf 6.
The noise reduction disk 5 axially fastened referring to being provided with second exhaust pipe described in Fig. 64, the noise reduction disk 5 are provided with
Main gas port 5.1 and divide gas port 5.2, the main gas port 5.1 has one, and described to divide gas port 5.2 to arrange triangular in shape.
Referring to Fig. 2, the filter 1 includes cylinder 1.1, and the interior edge airflow direction of cylinder 1.1 is disposed with screen pack 1.2
With ceramic honeycomb carrier 1.3, the left end of cylinder 1.1 is inlet exhaust gas 1.4, and right-hand member is offgas outlet 1.5, in the He of screen pack 1.2
In the presence of ceramic honeycomb carrier 1.3, vehicle exhaust can be effectively filtered, avoids atmosphere pollution.
Referring to Fig. 3-5, the ceramic honeycomb carrier 1.3 is corresponding with the inwall of cylinder 1.1, and ceramic honeycomb carrier 1.3
The one end for being densely covered with stomata 1.3.1, the stomata 1.3.1 in the axial direction is opening 1.3.6, and the other end is provided with closure face
1.3.2, the closure face 1.3.2 and opening 1.3.6 arranged for interval, the two neighboring stomata 1.3.1 are provided with next door
1.3.3, it is provided with the 1.3.3 of next door in cellular micropore 1.3.4, catalyst coat 1.3.5 is coated with the 1.3.3 of next door.
Wherein, stomata 1.3.1 hole count is 600 holes/square inch, and next door 1.3.3 thickness is 0.13 ~ 0.14mm.
The ceramic honey comb surface is coated with acid-proof coating, and this acid-proof coating is mainly matched by following raw materials by weight portion
It is made：13 parts of quartz sand, 12 parts of petroleum coke, 9 parts of wood chip, 8 parts of sodium chloride, 1 part of titanium dioxide, 13 parts of ethanol, 30 parts of water.
The preparation method of the acid-proof coating, is comprised the steps of：
（1）Quartz sand, petroleum coke and wood chip are pulverized, powder diameter is 400 mesh；
（2）By step（1）In powder and sodium chloride powder the input high temperature resistance furnace of acquisition, radiant heating, temperature is maintained at
1000 DEG C, 0.5 hour；
（3）Through step（2）Powder after pyrolytic semlting is with titania powder by weight 3:It is added to the water after 1 mixing, while stirring
Mix side and add ethanol thereto, microelectronics surface acid-proof coating can be obtained to all dissolvings.
Operation principle：The present invention is fabricated to honeycomb ceramic carrier using cordierite, and is built in the filter 1 of diesel engine
Interior, the waste gas with black smoke particle of diesel engine discharge enters downtake pipe 2, in the presence of air guide leaf 6, separates two
Road enters in the filter 1 in gas-distributing pipe 3, and tail gas carries out by-pass filtration when by screen pack 2, then from stomata 1.3.1's
Opening 1.3.6 enters ceramic honeycomb carrier 1.3, because stomata 1.3.1 is opening 1.3.6 at one end, and in the other end then
It is closure face 1.3.2, therefore waste gas can be by the next door 1.3.3 with micropore 1.3.4, then opening from adjacent air holes 1.3.1
Mouth 1.3.6 discharges, because the diameter of black smoke particle is big compared with micropore 1.3.4, therefore the black smoke particle in waste gas will be caught by filtering
On next door 1.3.3, air-flow then passes through from micropore 1.3.4, and the tail gas discharged from ceramic honeycomb carrier 1.3 enters second exhaust pipe
4, in the presence of noise reduction disk 5, it can effectively reduce noise during automobile exhaust.
The catalyst coat 1.3.5 contains the active rare earth of noble metal, and Main Ingredients and Appearance has Pt, Pd, Rh, Al2O3、Ce、
La, Zr, Cu, Mn, the waste gas of diesel combustion（The predominantly pernicious gas such as CO, HC, NOx）During through micropore 1.3.4, it is coated in
Catalyst coat 1.3.5 on the 1.3.3 of next door will strengthen CO, HC, NOxThe activity of three kinds of gas, it is promoted to carry out certain oxygen
Change-reduction chemical reaction, wherein CO are oxidized to colourless nontoxic carbon dioxide at high temperature, and HC compounds are divided at high temperature
Xie Chengshui（H2O）And carbon dioxide, NOxIt is reduced into nitrogen and oxygen.
When diesel exhaust gas temperature reaches 375 degrees Celsius, in the presence of catalyst coat 1.3.5, next door 1.3.3
On black smoke particle can progressively burn and aoxidize, the purifying rate of black smoke particle about reaches more than 85%, when reaction temperature reaches 500
Degree Celsius when catalyst and black smoke particle reaction fall so as to completely burned（Catalysis burning）, now the purifying rate of black smoke particle is reachable
More than 90%.
Claims (5)
- A kind of 1. noise reducing type exhaust gas filter, it is characterised in that：The noise reducing type exhaust gas filter includes connection automobile engine Downtake pipe（2）, and connection downtake pipe（2）" mouth " font gas-distributing pipe（3）, and connection gas-distributing pipe（3） Two blast pipes（4）, the gas-distributing pipe（3）Inside it is provided with filter（1）, the second exhaust pipe（4）Inside it is provided with and axially fastens Noise reduction disk（5）, the noise reduction disk（5）It is provided with main gas port（5.1）With divide gas port（5.2）, the filter（1）Including Cylinder（1.1）, cylinder（1.1）Interior edge airflow direction is disposed with screen pack（1.2）And ceramic honeycomb carrier（1.3）, it is described Ceramic honeycomb carrier（1.3）With cylinder（1.1）Inwall it is corresponding, and ceramic honeycomb carrier（1.3）It is densely covered with the axial direction Stomata（1.3.1）, the stomata（1.3.1）One end be opening（1.3.6）, the other end is provided with closure face（1.3.2）, it is described Closure face（1.3.2）And opening（1.3.6）Arranged for interval, the two neighboring stomata（1.3.1）It is provided with next door（1.3.3）, Next door（1.3.3）On be provided with cellular micropore（1.3.4）, next door（1.3.3）It is upper to be coated with catalyst coat（1.3.5）, The ceramic honey comb surface is coated with acid-proof coating, and this acid-proof coating is mainly made up of following raw materials by weight portion proportioning：Stone 13 parts of sand, 12 parts of petroleum coke, 9 parts of wood chip, 8 parts of sodium chloride, 1 part of titanium dioxide, 13 parts of ethanol, 30 parts of water；The preparation method of the acid-proof coating, is comprised the steps of：（1）Quartz sand, petroleum coke and wood chip are pulverized, powder diameter is 400 mesh；（2）By step（1）In powder and sodium chloride powder the input high temperature resistance furnace of acquisition, radiant heating, temperature is maintained at 1000 DEG C, 0.5 hour；（3）Through step（2）Powder after pyrolytic semlting is with titania powder by weight 3:It is added to the water after 1 mixing, while stirring Mix side and add ethanol thereto, microelectronics surface acid-proof coating can be obtained to all dissolvings.
- A kind of 2. noise reducing type exhaust gas filter according to claim 1, it is characterised in that：Filter（1）With first exhaust Pipe（2）Joint and filter（1）With second exhaust pipe（4）Joint is welded with air guide leaf（6）.
- A kind of 3. noise reducing type exhaust gas filter according to claim 1 or 2, it is characterised in that：The main gas port（5.1）Have It is one, described to divide gas port（5.2）There is multiple and arrangement triangular in shape.
- A kind of 4. noise reducing type exhaust gas filter according to claim 1, it is characterised in that：The stomata（1.3.1）Hole Number is 600 holes/square inch.
- A kind of 5. noise reducing type exhaust gas filter according to claim 1, it is characterised in that：The next door（1.3.3）Thickness Spend for 0.13 ~ 0.14mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610470452.5A CN107542534A (en) | 2016-06-27 | 2016-06-27 | Noise reducing type exhaust gas filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610470452.5A CN107542534A (en) | 2016-06-27 | 2016-06-27 | Noise reducing type exhaust gas filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107542534A true CN107542534A (en) | 2018-01-05 |
Family
ID=60960038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610470452.5A Pending CN107542534A (en) | 2016-06-27 | 2016-06-27 | Noise reducing type exhaust gas filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107542534A (en) |
-
2016
- 2016-06-27 CN CN201610470452.5A patent/CN107542534A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180105 |