CN208918634U - A kind of diesel engine silencer with tail gas purifying function - Google Patents
A kind of diesel engine silencer with tail gas purifying function Download PDFInfo
- Publication number
- CN208918634U CN208918634U CN201821516893.5U CN201821516893U CN208918634U CN 208918634 U CN208918634 U CN 208918634U CN 201821516893 U CN201821516893 U CN 201821516893U CN 208918634 U CN208918634 U CN 208918634U
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- CN
- China
- Prior art keywords
- partition
- noise elimination
- tail gas
- diesel engine
- escape pipe
- 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.)
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- 230000003584 silencer Effects 0.000 title claims abstract description 14
- 238000005192 partition Methods 0.000 claims abstract description 70
- 230000008030 elimination Effects 0.000 claims abstract description 40
- 238000003379 elimination reaction Methods 0.000 claims abstract description 40
- 230000000694 effects Effects 0.000 claims abstract description 7
- 230000003647 oxidation Effects 0.000 claims description 14
- 238000007254 oxidation reaction Methods 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 14
- 239000003054 catalyst Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 7
- 238000000746 purification Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 40
- 238000006722 reduction reaction Methods 0.000 description 8
- 238000006555 catalytic reaction Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 231100000252 nontoxic Toxicity 0.000 description 3
- 230000003000 nontoxic effect Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Abstract
The utility model discloses a kind of diesel engine silencers with tail gas purifying function, including air inlet pipe, shell and escape pipe, partition is arranged in the enclosure interior, the partition includes first partition and second partition, enclosure interior is separated into tri- noise elimination cavities of A, B, C by first partition and second partition, the air inlet pipe is connected to intermediate A noise elimination cavity, described escape pipe one end passes through first partition and second partition is connected to B noise elimination cavity, and the other end of escape pipe stretches out hull outside after A, C noise elimination cavity；It is provided with fixation hole in the first partition, second partition, exhaust gas cleaner is fixed on first partition by the fixation hole on first partition, second partition, on second partition, so that exhaust gas cleaner is across tri- noise elimination cavities of A, B, C；The utility model increases exhaust gas cleaner inside silencer, while realizing the effect of tail gas clean-up and noise reduction, and exhaust emissions meets European Union's 5 phase standard after entrucking, and exhaust noise is less than 72dBa, has good using effect.
Description
Technical field
The utility model relates to diesel engine exhaust system field, specifically a kind of diesel engine with tail gas purifying function disappears
Sound device.
Background technique
Diesel engine is since power is strong, economic performance is good, tail gas pollution is widely used in various vehicles and non-rice habitats less
It is mechanical；As global exhaust emissions is increasingly stringent, simple high-pressure common rail, waste gas circulation and middle refrigeration technique have all been unable to satisfy existing
Row emission regulation needs additionally to increase a set of tail-gas after treatment apparatus, the control to discharge pollutants when meeting engine cold-start,
The working truck exhaust emissions in especially closed operation place is stringenter.
Fork truck has good opening due to compact-sized, the narrow space in rear counterweight, no image of Buddha commercial truck like that
Space, just with the design and installation of exhaust system.Exhaust emissions, row noise, power loss are combined in this small space
Equal multiple indexes, bring biggish difficulty to design work.
Utility model content
When to design exhaust system equipped with the fork truck of Caterpillar C7.1 engine, pass through the comparison of multiple technologies scheme
And verifying, a kind of diesel engine silencer with cleaning of off-gas function simultaneously is devised, exhaust emissions meets Europe after product loading
Alliance's 5 phase standard, exhaust noise are less than 72dBa, have good using effect.
The utility model technical scheme is that:
A kind of diesel engine silencer with tail gas purifying function, including air inlet pipe, shell and escape pipe, the shell
Enclosure interior is separated into two noise elimination cavities by inside setting partition, partition, and air inlet pipe is connected to one of noise elimination cavity, escape pipe
It is connected to another noise elimination cavity；It is characterized by: being additionally provided with exhaust gas cleaner in two noise elimination cavities.
The oxidation catalyst carrier and particle trap that the exhaust gas cleaner is wrapped up by cylindrical metallic shell form；
Fixation hole is set on the partition, and exhaust gas cleaner is fixed on partition by fixation hole, so that exhaust gas cleaner is horizontal
Across in two noise elimination cavities.
The partition includes first partition and second partition, first partition and second partition by enclosure interior be separated into A,
B, tri- noise elimination cavities of C, the air inlet pipe be connected tos with intermediate A noise elimination cavity, described escape pipe one end pass through first partition with
Second partition is connected to B noise elimination cavity, and the other end of escape pipe stretches out hull outside after A, C noise elimination cavity；Described first every
Fixation hole is provided on plate, second partition, exhaust gas cleaner is fixed on by the fixation hole on first partition, second partition
In first partition, second partition, so that exhaust gas cleaner is across tri- noise elimination cavities of A, B, C；It is arranged in the first partition
There is sound attenuation hole.
The exhaust gas cleaner is the oxidation catalysis of two pieces of different sizes and hole density being wrapped up by cylindrical metallic shell
Agent carrier and particle trap composition；Oxidation catalyst carrier and particle trap channel surfaces are coated with catalyst coat,
When tail gas passes through, harmful components generate oxidation, reduction reaction therewith, are transformed into nontoxic CO2, H2O and N2.
One end of the escape pipe is provided with sound attenuation hole, and noise elimination effect can be improved.
The lower end of the air inlet pipe is provided with open slot, and open slot is directly connected with engine escape pipe with clip.
The shell includes enclosure body and left and right end cap, and enclosure body is oval external form, and left and right end cap passes through volume
Side technique and enclosure body occlusion are integrally formed；The right end cap side is provided with hole, and escape pipe passes through aperture and stretches out outside shell.
The two sides of the shell are provided with bracket.
The exhaust gas cleaner of the utility model is the oxygen of two pieces of different sizes and hole density being wrapped up by cylindrical metallic shell
Change catalyst carrier and particle trap composition；Oxidation catalyst carrier and particle trap channel surfaces are coated with catalyst
Coating, when tail gas passes through, harmful components generate oxidation, reduction reaction therewith, are transformed into nontoxic CO2, H2O and N2；Work as exhaust
For temperature at 250 ~ 600, the soot in particle trap can be realized passive regeneration；The utility model increases inside silencer
Exhaust gas cleaner, while realizing the effect of tail gas clean-up and noise reduction.
Detailed description of the invention
Fig. 1 is the external form schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the utility model；
Fig. 3 is the plan view of the utility model first partition；
Fig. 4 is the gas flow figure of the utility model.
Specific embodiment
As shown in Figure 1-3, the utility model discloses a kind of diesel engine silencers with tail gas purifying function, including into
Partition is arranged in tracheae 1, shell 2 and escape pipe 3, the enclosure interior, and enclosure interior is separated into two noise elimination cavities by partition, into
Tracheae is connected to one of noise elimination cavity, and escape pipe is connected to another noise elimination cavity；It is additionally provided in two noise elimination cavities
Exhaust gas cleaner.
Oxidation catalyst carrier 11 that the exhaust gas cleaner is wrapped up by cylindrical metallic shell and 12 groups of particle trap
At；Fixation hole is set on the partition, and exhaust gas cleaner is fixed on partition by fixation hole, so that exhaust gas cleaner
In two noise elimination cavities.
The partition includes first partition 21 and second partition 22, and first partition and second partition separate enclosure interior
At tri- noise elimination cavities of A, B, C, the air inlet pipe be connected to intermediate noise elimination cavity A, described escape pipe one end across first every
The aperture 25 of plate and second partition is connected to the noise elimination cavity B on the left side, and the other end of escape pipe stretches out shell after A, C noise elimination cavity
It is external；Fixation hole 23 is provided in the first partition, second partition, exhaust gas cleaner passes through first partition, second
Fixation hole on partition is fixed on first partition, on second partition, so that exhaust gas cleaner is across tri- noise elimination cavities of A, B, C；
Sound attenuation hole 24 is provided in the first partition.
The exhaust gas cleaner is the oxidation catalysis of two pieces of different sizes and hole density being wrapped up by cylindrical metallic shell
Agent carrier 11 and particle trap 12 form；Oxidation catalyst carrier 11 and 12 channel surfaces of particle trap are coated with catalysis
Agent coating, when tail gas passes through, harmful components generate oxidation, reduction reaction therewith, are transformed into nontoxic CO2, H2O and N2.
One end of the escape pipe 3 is provided with sound attenuation hole 31.
The lower end of the air inlet pipe 1 is provided with open slot 4, and open slot is directly connected with engine escape pipe with clip.
The shell includes enclosure body and left and right end cap 5, and enclosure body is oval external form, and left and right end cap passes through volume
Side technique and enclosure body occlusion are integrally formed；The right end cap side is provided with hole, and escape pipe passes through aperture and stretches out outside shell.
The utility model is fixed on vehicle frame by two side stand 6 of shell, and air inlet pipe 1 is directly gone out with engine by clip
Tracheae is connected, and motor exhaust is discharged into atmosphere through escape pipe after purification；Partition there are two settings in the utility model shell, every
After punching has sound attenuation hole, partition and escape pipe, exhaust gas cleaner to be welded to form liner as required on plate, it is fixed on oval-shaped shell
It is interior；Two partitions are arranged to exhaust gas cleaner double support in the utility model, avoid in use process and shake and damage tail
Air purifying apparatus；Partition and enclosure body, left and right end cap form different size of noise elimination cavity, when engine exhaust by when play
Noise Reduction；The left and right end cap of two sides becomes shell by flanging process and enclosure body occlusion, forms A, B, C tri- different rulers
Very little noise elimination cavity.
As shown in figure 4, further describing its working principle: when engine exhaust enters intermediate cavity A through air inlet pipe 1, row
Gas velocity and rapid pressure drop realize the level-one decaying and particle trap preheating of noise；Gas after decaying pass through every
Sound attenuation hole enters noise elimination cavity C again on plate 21, and gas flow rate and pressure decline at once again after rapidly increasing, and realizes the second level of noise
Decaying；When gas flows through exhaust gas cleaner, oxidation, reduction reaction occur for pernicious gas and catalyst coat, realize harmful gas
Body reduces and carbon particle traps and the decaying of sound deadening capacity three-level；After purified gas enters noise elimination cavity B, the flow velocity of gas and
Pressure reduction arrived it is minimum, realize noise level Four decaying；The sound attenuation hole for eventually passing through escape pipe 3 is drained into atmosphere, while real
The effect of tail gas clean-up and noise reduction is showed.
Claims (8)
1. a kind of diesel engine silencer with tail gas purifying function, including air inlet pipe, shell and escape pipe, in the shell
Partition is arranged in portion, and enclosure interior is separated into two noise elimination cavities by partition, and air inlet pipe is connected to one of noise elimination cavity, escape pipe and
The connection of another noise elimination cavity；It is characterized by: being additionally provided with exhaust gas cleaner in two noise elimination cavities.
2. a kind of diesel engine silencer with tail gas purifying function as described in claim 1, it is characterised in that: the tail
The oxidation catalyst carrier and particle trap that air purifying apparatus is wrapped up by cylindrical metallic shell form；It is arranged on the partition
Fixation hole, exhaust gas cleaner are fixed on partition by fixation hole, so that exhaust gas cleaner is in two noise elimination cavities.
3. a kind of diesel engine silencer with tail gas purifying function as claimed in claim 2, it is characterised in that: it is described every
Plate includes first partition and second partition, and enclosure interior is separated into tri- noise elimination cavities of A, B, C, institute by first partition and second partition
The air inlet pipe stated is connected to intermediate A noise elimination cavity, and described escape pipe one end passes through first partition and second partition and B noise elimination cavity
The other end of connection, escape pipe stretches out hull outside；Fixation hole, tail gas are provided in the first partition, second partition
Purification device is fixed on first partition by the fixation hole on first partition, second partition, on second partition, so that tail gas clean-up
Device is across tri- noise elimination cavities of A, B, C；Sound attenuation hole is provided in the first partition.
4. a kind of diesel engine silencer with tail gas purifying function as claimed in any one of claims 1-3, feature exist
In: the exhaust gas cleaner is the oxidation catalyst carrier of two pieces of different sizes and hole density being wrapped up by cylindrical metallic shell
And particle trap composition；Oxidation catalyst carrier and particle trap channel surfaces are coated with catalyst coat.
5. a kind of diesel engine silencer with tail gas purifying function as claimed in claim 1 or 3, it is characterised in that: described
One end of escape pipe be provided with sound attenuation hole, noise elimination effect can be improved.
6. a kind of diesel engine silencer with tail gas purifying function as described in claim 1, it is characterised in that: it is described into
The lower end of tracheae is provided with open slot, and open slot is directly connected with engine escape pipe with clip.
7. a kind of diesel engine silencer with tail gas purifying function as claimed in claim 1 or 3, it is characterised in that: described
Shell include enclosure body and left and right end cap, enclosure body is oval external form, and left and right end cap passes through flanging process and shell
Ontology occlusion is integrally formed；The right end cap side is provided with hole, and escape pipe passes through aperture and stretches out outside shell.
8. a kind of diesel engine silencer with tail gas purifying function as claimed in claim 1 or 3, it is characterised in that: described
The two sides of shell are provided with bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821516893.5U CN208918634U (en) | 2018-09-17 | 2018-09-17 | A kind of diesel engine silencer with tail gas purifying function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821516893.5U CN208918634U (en) | 2018-09-17 | 2018-09-17 | A kind of diesel engine silencer with tail gas purifying function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208918634U true CN208918634U (en) | 2019-05-31 |
Family
ID=66705906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821516893.5U Active CN208918634U (en) | 2018-09-17 | 2018-09-17 | A kind of diesel engine silencer with tail gas purifying function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208918634U (en) |
-
2018
- 2018-09-17 CN CN201821516893.5U patent/CN208918634U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No.3 Shuangnan Village, Toutuo Town, Huangyan District, Taizhou City, Zhejiang Province, 318020 Patentee after: Zhejiang Sanyuan Longxing Technology Co.,Ltd. Address before: No. 13 Jinniu Road, Xinqian Industrial Zone, Huangyan District, Taizhou City, Zhejiang Province, 318020 Patentee before: TAIZHOU THREE-WAY VEHICLE CATALYTIC CONVERTER Co.,Ltd. |