CN206429304U - A kind of sound insulation of engine, noise reduction, exhaust treatment system - Google Patents
A kind of sound insulation of engine, noise reduction, exhaust treatment system Download PDFInfo
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- CN206429304U CN206429304U CN201720028946.8U CN201720028946U CN206429304U CN 206429304 U CN206429304 U CN 206429304U CN 201720028946 U CN201720028946 U CN 201720028946U CN 206429304 U CN206429304 U CN 206429304U
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- acoustic hood
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Abstract
A kind of sound insulation of engine, noise reduction, exhaust treatment system, including acoustic hood, air intake sound attenuator, air draft sound attenuator, exhaust treatment system and muffler, the wall of acoustic hood by including steel plate layer successively inside outside, sound insulating material layer, mesh flaggy and thermal insulation layer, air intake sound attenuator is arranged on above acoustic hood right-hand member, air draft sound attenuator is symmetricly set on above acoustic hood left end relative to air intake sound attenuator, the top of acoustic hood is provided with exhaust noise silencing case and exhaust treatment system, exhaust treatment system one end connects exhaust noise silencing case, the other end connects engine by conveyance conduit, exhaust noise silencing case connects the outside of acoustic hood by gas outlet, soundproof door is provided with the front of acoustic hood, the application provides a kind of integral design, by acoustic hood, noise reduction system and the multiple systems of vent gas treatment are reduced to an integration system, realizing good sound insulation, noise reduction, while the effect of vent gas treatment, it it also avoid interference and the mismatch problem produced when separately installed between each system.
Description
Technical field
The utility model is related to the sound insulation of engine, noise reduction, tail gas treatment device technical field, and in particular to one kind is started
The sound insulation of machine, noise reduction, exhaust treatment system.
Background technology
The noise of current land engine and discharge pollutants it is exceeded increasingly paid attention to, administer noise needs and insulate against sound
Cover processing mechanicalness noise, engine enters, the noise produced by exhaust system processing engine breathing, at engine exhaust muffler
Motor exhaust exhaust noise is managed, exhaust treatment system relies primarily on the function of built-in catalyst, to the tail in engine exhaust
Gas pollutant is handled accordingly.Up to now user is needed to acoustic hood, noise reduction system（Enter including engine, air draft disappears
Sound case, engine exhaust muffler）, exhaust treatment system is individually selected, wherein each part is required for individually designing
Scheme, designs and produces process complexity, then connects integral by pipeline or other forms, and after the project implementation, it is existing
Field looks more in disorder, individually designed to be also possible to that it be made to raise engine exhaust back pressure, and is not easy to the dimension of system
Shield, also because each part is independent design, may have interference in integral installation, between different products and can not match
The problem of, this can bring inconvenience and puzzlement to installation.
Utility model content
For problem above, the application provides a kind of monoblock type conceptual design, by acoustic hood, noise reduction system（Including starting
Machine enters air exhausting soundproofing case, engine exhaust muffler）Sound insulation, drop with the multiple overall system designs of vent gas treatment for engine
Make an uproar, exhaust treatment system, multiple systems are reduced to an integration system, good sound insulation, noise reduction, vent gas treatment is being realized
While effect, interference and the mismatch problem produced when separately installed between each system is it also avoid, its technical scheme is such as
Under：
It is closed in a kind of sound insulation of engine, noise reduction, exhaust treatment system, including acoustic hood, the acoustic hood to be provided with
Engine, in addition to air intake sound attenuator, air draft sound attenuator, exhaust treatment system and muffler, described acoustic hood are length
Cube frame structure, the wall of the acoustic hood by including steel plate layer, sound insulating material layer, mesh flaggy and heat-insulated successively inside outside
Layer, described air intake sound attenuator is arranged on above acoustic hood right-hand member, and air draft sound attenuator is symmetricly set on relative to air intake sound attenuator
Above acoustic hood left end, the top of the acoustic hood is provided with exhaust noise silencing case and exhaust treatment system, described vent gas treatment system
Unified end connection exhaust noise silencing case, the other end connect engine by conveyance conduit, and described exhaust noise silencing case passes through gas outlet
Connect and be provided with soundproof door on the outside of acoustic hood, the front of the acoustic hood.
Further, described air intake sound attenuator, air draft sound attenuator it is corresponding enter, exhaust outlet disappearing provided with knuckle type
Sound blinds, inside are multiple equally distributed noise elimination bands being made up of mesh plate and sound absorption cotton.Enter, air exhausting soundproofing case enters, arranged
Air port design is louver structure, so not only has certain soundproof effect, can be with rain-proof, and the inside of silencer box is uniform point
The noise elimination band of multiple mesh plates of cloth and sound absorption cotton composition, to by entering, the wind that changes of exhaust outlet there is further sound-deadening and noise-reducing work(
Effect.
Further, described exhaust treatment system include in reacting furnace, described reacting furnace along airflow direction according to
It is secondary to be provided with black smoke filter core dividing plate, oxidation catalyst carrier dividing plate, reduction catalystses agent carrier dividing plate and reacting furnace is divided into 4
Chamber, the reacting furnace between the oxidation catalyst carrier dividing plate, reduction catalystses agent carrier dividing plate is provided with urea entrance.Start
The pernicious gases such as substantial amounts of PM, CO, HC, NOX are usually contained in the tail gas of machine, if directly discharge can cause atmosphere pollution,
Top inside acoustic hood is provided with exhaust treatment system, and the system is by particle filtering（DPF）Oxidation catalysis（DOC）Selective catalysis
Reduction（SCR）Merging turns into single unit system, is connected using blast pipe with engine, and is designed with support and fixed, when starting
When the waste gas that machine comes out is by reacting furnace, it may occur that following reaction：The first step：Waste gas can be by black smoke filtering when chamber 1 flows into chamber 2
Filter core in filter core dividing plate, the dividing plate can retain PM so that the gas for entering chamber 2 is free of PM；Second：When chamber 2 flows into chamber 3
The oxidation catalyst that waste gas can pass through in oxidation catalyst carrier dividing plate, dividing plate can make CO and HC aoxidize generation at high temperature
CO2 and H2O, hence into the gas of chamber 3, without PM, CO, HC；3rd step：When chamber 3 flows into chamber 4, urea entrance can be
Urea is sprayed into chamber 3, gas is mixed with urea passes through reducing catalyst, reducing catalyst can make NO compounds at high temperature with
Urea reaction reduction generation N2 and H2O, the gas for eventually entering into chamber 4 is free of PM, CO, HC, NOX, reaches the purpose of cleaning of off-gas.
Further, described reacting furnace top is provided with opening, and opening is provided with the seal cover board being bolted.Opening
Sealing is bolted using cover plate, used for more catalyst changeout.
Further, described muffler includes cylinder, and the cylinder is interior to be separated into guiding region, extinguishing by dividing plate
Area and noise reduction area, the guiding region front end is connected by flange to be led in exhaust treatment system, the guiding region provided with several
Extinguish in the spiral diversion pipe in area, the noise reduction area and be equipped with the inner tube portalled provided with surface, set between said inner tube and cylinder
There is silencing means, noise reduction area passes through pipeline communication gas outlet.Motor exhaust has a larger exhaust noise when being vented, therefore
Muffler is provided with Engine exhaust pipeline, muffler is arranged in the top inside acoustic hood, it is useless with Mars
Gas enters after muffler, and air-flow enters along the convolution of spiral diversion pipe extinguishes area, and eddy flow, Mars are formed extinguishing in area
Energy is slowly reduced until extinguishing and concentrating in extinguishing area in rotation, and remaining waste gas is again by passing through exhaust after noise reduction
Muffler, muffler can not only reduce the exhaust noise of engine, while the purpose of fire extinguishing star can also be reached, it is ensured that
Mars is free of in the gas of engine discharge, it is safer.
Further, the acoustic hood lower end is also lined with vibration isolator, and engine is placed on vibration isolator.
Further, sound proof window is also provided with the front of the acoustic hood, described sound proof window is parallel to each other including two panels
Glass, be vacuum between two sheet glass.
Further, described sound insulating material layer is made of glass fibre acoustical cotton.
According to above-mentioned technical proposal, the utility model by being by the sound insulation of engine, noise reduction, exhaust treatment system 3
Multiple systems, by shifting to an earlier date integral design, are reduced to an integration system by system, design process is become simpler, effective,
While good sound insulation, noise reduction, the effect of vent gas treatment is realized, it also avoid producing when separately installed between each system
Interference and mismatch problem.
Brief description of the drawings
The utility model is described in further detail below by embodiment combination accompanying drawing.
Fig. 1 is front view of the present utility model；
Fig. 2 is internal structure schematic diagram of the present utility model；
Fig. 3 for it is of the present utility model enter, air draft whistle box structure schematic diagram；
Fig. 4 is Fig. 3 another angle part sectional view；
Fig. 5 is acoustical enclosure wall stratiform schematic diagram of the present utility model；
Fig. 6 moves towards schematic diagram for the inside of exhaust treatment system of the present utility model；
Fig. 7 is the structural representation of muffler of the present utility model；
Fig. 8 is Fig. 7 along cylinder direction schematic diagram.
Wherein, 1, acoustic hood；11st, steel plate layer；12nd, sound insulating material layer；13rd, mesh flaggy；14th, thermal insulation layer；2nd, engine；
3rd, air intake sound attenuator；4th, air draft sound attenuator；31st, noise elimination blinds；32nd, noise elimination band；321st, mesh plate；322nd, absorb sound cotton；5th, tail gas
Processing system；5a, reacting furnace；51st, black smoke filter core dividing plate；52nd, oxidation catalyst carrier dividing plate；53rd, reducing catalyst is carried
Body dividing plate；54th, urea entrance；55th, seal cover board；6th, muffler；61st, cylinder；62nd, guiding region；63rd, area is extinguished；64、
Noise reduction area；65th, endoporus；66th, silencing means；67th, mozzle；7th, conveyance conduit；8th, gas outlet；9th, soundproof door；10th, sound proof window.
Embodiment
The utility model is described in further detail below by embodiment combination accompanying drawing.
As shown in Figure 1, Figure 2, Figure 5, a kind of sound insulation of engine, noise reduction, exhaust treatment system, including acoustic hood 1, described
It is closed in acoustic hood 1 that engine 2, in addition to air intake sound attenuator 3, air draft sound attenuator 4, exhaust treatment system 5 and exhaust are installed
Muffler 6, described acoustic hood 1 is cuboid framework structure, and the wall of the acoustic hood 1 by including steel plate layer successively inside outside
11st, sound insulating material layer 12, mesh flaggy 13 and thermal insulation layer 14, described air intake sound attenuator 3 are arranged on above the right-hand member of acoustic hood 1,
Air draft sound attenuator 4 is symmetricly set on above the left end of acoustic hood 1 relative to air intake sound attenuator 3, and the top of the acoustic hood 1 is provided with row
Gas sound attenuator 6 and exhaust treatment system 5, the described one end of exhaust treatment system 5 connection exhaust noise silencing case 6, the other end pass through defeated
Pipeline 7 is sent to connect engine 2, described exhaust noise silencing case 6 connects the outside of acoustic hood 1, the acoustic hood 1 by gas outlet 8
Front on be provided with soundproof door 9.
As shown in Figure 3, Figure 4, described air intake sound attenuator 3, air draft sound attenuator 4 it is corresponding enter, exhaust outlet is provided with folding
The noise elimination blinds 31 of angle-style, inside are multiple equally distributed noise elimination bands 32 being made up of mesh plate 321 and sound absorption cotton 322.
As shown in fig. 6, described exhaust treatment system 5 is included in reacting furnace a 5a, described reacting furnace 5a along air-flow
Direction is sequentially provided with black smoke filter core dividing plate 51, oxidation catalyst carrier dividing plate 52, reduction catalystses agent carrier dividing plate 53 and incited somebody to action
5a points of reacting furnace is 4 chamber, the reacting furnace 5a between the oxidation catalyst carrier dividing plate 52, reduction catalystses agent carrier dividing plate 53
It is provided with urea entrance 54.
As shown in Fig. 2 described reacting furnace 5a tops are provided with opening, opening is provided with the seal cover board being bolted
55。
As shown in Figure 7, Figure 8, described muffler 6 includes being separated into by dividing plate in cylinder 61, the cylinder 61
Guiding region 62, extinguishing area 63 and noise reduction area 64, the front end of guiding region 62 connect exhaust treatment system 5 by flange, described to lead
Lead to be equipped with provided with surface in the spiral diversion pipe 67 for extinguishing area 63, the noise reduction area 64 provided with several in stream area 62 and portal
Inner tube 65, between said inner tube 65 and cylinder 61 be provided with silencing means 66, noise reduction area 64 passes through pipeline communication gas outlet 8.
The lower end of acoustic hood 1 is also lined with vibration isolator（Do not show in figure）, engine 2 is placed on vibration isolator.
As shown in figure 1, being also provided with sound proof window 10 on the front of the acoustic hood 1, described sound proof window 10 includes two panels phase
It is vacuum between mutual parallel glass, two sheet glass.
Described sound insulating material layer 12 is made of glass fibre acoustical cotton.
Use above specific case is illustrated to the utility model, is only intended to help and is understood the utility model, and
Not to limit the utility model.For the utility model person of ordinary skill in the field, think according to of the present utility model
Think, some simple deductions, deformation can also be made or replaced.
Claims (8)
1. closed in a kind of sound insulation of engine, noise reduction, exhaust treatment system, including acoustic hood, the acoustic hood be provided with hair
Motivation, it is characterised in that also including air intake sound attenuator, air draft sound attenuator, exhaust treatment system and muffler, it is described every
Acoustic shell is cuboid framework structure, and the wall of the acoustic hood by including steel plate layer, sound insulating material layer, mesh plate successively inside outside
Layer and thermal insulation layer, described air intake sound attenuator are arranged on above acoustic hood right-hand member, and air draft sound attenuator is relative to air intake sound attenuator pair
Title is arranged on above acoustic hood left end, and the top of the acoustic hood is provided with exhaust noise silencing case and exhaust treatment system, described tail
Gas processing system one end connection exhaust noise silencing case, the other end connect engine by conveyance conduit, and described exhaust noise silencing case leads to
Cross on the outside that gas outlet connects acoustic hood, the front of the acoustic hood and be provided with soundproof door.
2. a kind of sound insulation of engine, noise reduction, exhaust treatment system as claimed in claim 1, it is characterised in that described enters
Wind sound attenuator, the corresponding of air draft sound attenuator enter, noise elimination blinds of the exhaust outlet provided with knuckle type, internal are uniformly distributed to be multiple
By mesh plate and the noise elimination band that constitutes of sound absorption cotton.
3. a kind of sound insulation of engine, noise reduction, exhaust treatment system as claimed in claim 1 or 2, it is characterised in that described
Exhaust treatment system include in reacting furnace, described reacting furnace along airflow direction be sequentially provided with black smoke filter core every
Reacting furnace is simultaneously divided into 4 chambers by plate, oxidation catalyst carrier dividing plate, reduction catalystses agent carrier dividing plate, and the oxidation catalyst is carried
Reacting furnace between body dividing plate, reduction catalystses agent carrier dividing plate is provided with urea entrance.
4. a kind of sound insulation of engine, noise reduction, exhaust treatment system as claimed in claim 3, it is characterised in that described is anti-
Furnace roof end is answered to be provided with opening, opening is provided with the seal cover board being bolted.
5. a kind of sound insulation of engine, noise reduction, exhaust treatment system as claimed in claim 4, it is characterised in that described row
Gas muffler includes cylinder, and the cylinder is interior to be separated into guiding region by dividing plate, extinguishes area and noise reduction area, the guiding region front end
Connected by flange and lead to the spiral diversion pipe for extinguishing area in exhaust treatment system, the guiding region provided with several, it is described
The inner tube portalled is equipped with provided with surface in noise reduction area, silencing means is provided between said inner tube and cylinder, noise reduction area passes through pipeline
Connect gas outlet.
6. a kind of sound insulation of engine, noise reduction, exhaust treatment system as claimed in claim 5, it is characterised in that the sound insulation
Cover lower end is also lined with vibration isolator, and engine is placed on vibration isolator.
7. a kind of sound insulation of engine, noise reduction, exhaust treatment system as claimed in claim 6, it is characterised in that the sound insulation
Sound proof window is also provided with the front of cover, it is vacuum that described sound proof window, which is included between the glass that two panels is parallel to each other, two sheet glass,.
8. as claimed in claim 7 a kind of sound insulation of engine, noise reduction, exhaust treatment system, it is characterised in that it is described every
Sound material layer is made of glass fibre acoustical cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720028946.8U CN206429304U (en) | 2017-01-11 | 2017-01-11 | A kind of sound insulation of engine, noise reduction, exhaust treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720028946.8U CN206429304U (en) | 2017-01-11 | 2017-01-11 | A kind of sound insulation of engine, noise reduction, exhaust treatment system |
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| Publication Number | Publication Date |
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| CN206429304U true CN206429304U (en) | 2017-08-22 |
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| CN201720028946.8U Active CN206429304U (en) | 2017-01-11 | 2017-01-11 | A kind of sound insulation of engine, noise reduction, exhaust treatment system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108301921A (en) * | 2017-01-11 | 2018-07-20 | 上海怡允环境科技有限公司 | A kind of sound insulation of engine, noise reduction, exhaust treatment system |
| CN109723545A (en) * | 2018-12-24 | 2019-05-07 | 福安市隆凯电机有限公司 | A kind of mute power generator group |
| CN111089016A (en) * | 2020-03-20 | 2020-05-01 | 山东赛马力动力科技有限公司 | Noise reduction structure of container unit |
-
2017
- 2017-01-11 CN CN201720028946.8U patent/CN206429304U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108301921A (en) * | 2017-01-11 | 2018-07-20 | 上海怡允环境科技有限公司 | A kind of sound insulation of engine, noise reduction, exhaust treatment system |
| CN109723545A (en) * | 2018-12-24 | 2019-05-07 | 福安市隆凯电机有限公司 | A kind of mute power generator group |
| CN111089016A (en) * | 2020-03-20 | 2020-05-01 | 山东赛马力动力科技有限公司 | Noise reduction structure of container unit |
| CN111089016B (en) * | 2020-03-20 | 2020-07-10 | 山东赛马力动力科技有限公司 | Noise reduction structure of container unit |
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