CN105736097B - Diesel engine vent gas reclaiming clean and noise reduction set composite - Google Patents
Diesel engine vent gas reclaiming clean and noise reduction set composite Download PDFInfo
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- CN105736097B CN105736097B CN201610216680.XA CN201610216680A CN105736097B CN 105736097 B CN105736097 B CN 105736097B CN 201610216680 A CN201610216680 A CN 201610216680A CN 105736097 B CN105736097 B CN 105736097B
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- exhaust pipe
- exhaust
- shell
- resonant cavity
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
- F01N3/0222—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being monolithic, e.g. honeycombs
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a kind of diesel engine vent gas reclaiming clean and noise reduction set composite, including catalytic oxidizing equipment, microparticles collection device and exhaust silencer；The catalytic oxidizing equipment includes the first shell equipped with air inlet and exhaust outlet and the catalyst carrier for purifying being fixed in first shell；Supported catalyst on catalyst carrier for purifying；The first shell corresponds to accent of the catalyst carrier for purifying side equipped with the first resonant cavity and the first resonant cavity towards catalyst carrier for purifying；The diesel engine vent gas reclaiming clean of the present invention and noise reduction set composite, catalysis oxidation converter DOC is combined with resonator chamber, compact-sized, space utilization is reasonable, sound wave diffuses into resonator chamber, acoustic energy is reduced, and then reduce low-frequency noise with the heat dissipation of accent wall friction and cavity internal resonance cancellation, realize that tail gas clean-up and noise reduction work together, it is simple in structure, at low cost, service life is long, is easily installed and dismantles；Tail gas clean-up and acoustical absorptivity are high.
Description
Technical field
The present invention relates to tail gas disposal technique more particularly to a kind of diesel engine vent gas reclaiming cleans and noise reduction set composite.
Background technology
According to the development strategy of national energy-saving emission reduction and the requirement of country's reply greenhouse gas emission, it is badly in need of carrying out engineering
The project that construction diesel engine and the purification of generator power equipment tail gas recycle and exhaust noise reduce, to reduce discharge, is realized
The purpose of energy-saving and emission-reduction is tightly combined with production and engineering, improves the quality of living and produce normal operation.
Diesel engine vent gas processing and noise reduction are all that exhaust gas cleaner and silencer work independently in the prior art；Unilaterally
Performance and less efficient；The blowdown technology of control diesel engine vent gas has two kinds of emission controls by improving combustion and external purification, the former is basis, after
Person is essential important component, and only the two combines, and can just make diesel engine blowdown control in increasingly strict regulation
In the range of, and external purification first choice should be catalysis oxidation converter, catalysis oxidation converter is typically mounted on engine row at present
In tracheae, by three kinds of exhaust gas nuisance CO, HC and NOx conversion of engine emission be harmless water by redox reaction,
Carbon dioxide and nitrogen, and diesel engine vent gas is more containing toxic gas, PM contents are too high, only rely on catalysis oxidation converter and are difficult to
Effectively purification occupies big quantity space in exhaust pipe, while is dropped between catalysis oxidation converter and exhaust pipe without effective sound insulation
It makes an uproar structure, causes exhaust treatment system huge, noise reduction is poor；And acoustic wave filter structure is complicated currently on the market, acoustical absorptivity is low,
Specific aim is not strong；Purifier involves great expense.
Invention content
In view of this, the object of the present invention is to provide a kind of diesel engine vent gas reclaiming clean and noise reduction set composite, structures
Compact, space utilization is reasonable, can reduce low-frequency noise, alleviates impact of the air-flow to first shell, further reduces noise, reach
To can catalysis oxidation pernicious gas and the Middle and low frequency noise that disappears purpose, realize that tail gas clean-up and noise reduction work together, structure
Simply, at low cost, service life is long, is easily installed and dismantles；Tail gas clean-up and acoustical absorptivity are high.
The diesel engine vent gas reclaiming clean of the present invention and noise reduction set composite are filled including catalytic oxidizing equipment, micro particle catching
It puts and exhaust silencer；The catalytic oxidizing equipment includes the first shell equipped with air inlet and exhaust outlet and is fixed on first
Catalyst carrier for purifying in housing；Supported catalyst on catalyst carrier for purifying；The first shell corresponds to cleaning catalyst
Carrier side is equipped with the accent of the first resonant cavity and the first resonant cavity towards catalyst carrier for purifying；The microparticles collection device
The exhaust outlet of first shell is fixed on for adsorbing and filtering PM particles；The exhaust silencer is fixed on microparticles collection device
Exhaust end.
Further, the first shell correspond to its own air inlet to the part between catalyst carrier for purifying be along air-flow
The pyramidal structure that direction cross section becomes larger.
Further, first resonant cavity is multiple and around catalyst carrier for purifying side close-packed arrays；First is common
The chamber that shakes is surrounded by the inner cylinder being set in first shell and the partition board being fixed between inner cylinder and first shell；The partition board includes edge
The circumferentially disposed annular partition of inner cylinder and the longitudinal baffle for being parallel to inner cylinder axis；Annular partition and longitudinal baffle are in right-angled intersection
Formula is fixed together, and the accent of the first resonant cavity is set on inner cylinder and is round closed-entry structure.
Further, the catalyst carrier for purifying is equipped with the multiple ducts being arranged in juxtaposition, and being fixed with titanium silicon between duct urges
Agent.
Further, the microparticles collection device includes second shell and the ceramic honeycomb being fixed in second shell carries
Body；The second shell is fixed on the exhaust outlet of first shell and is communicated with first shell.
Further, the exhaust silencer includes the third housing equipped with air inlet and exhaust outlet and is fixed on third shell
In vivo and the air inlet of third housing is connected to the staged reducing exhaust pipe of exhaust outlet；The staged reducing exhaust pipe into
Gas end diameter is more than exhaust end diameter；The air inlet of third housing is fixed on microparticles collection device.
Further, the staged reducing exhaust pipe is fixed on third inner walls, the annular by annular slab component
Plate component includes the first annular plate, the second annular slab, third annular slab and the 4th along staged reducing exhaust pipe axial alignment
Annular slab；First annular plate is set on single order exhaust pipe middle front part；The rear end that second annular slab is set on second order exhaust pipe makes the second ring
The second resonant cavity is formed between shape plate and first annular plate；Third annular slab, which is set in the middle part of three rank exhaust pipes, makes third annular slab
Between the second annular slab formed third resonant cavity, fourth annular plate be set on three rank exhaust pipes middle and back make fourth annular plate with
The 4th resonant cavity is formed between third annular slab.
Further, it connects and seals by ring sealing plate between the rear end of the single order exhaust pipe and second order exhaust pipe；The
The micropunch exhaust pipe of the second resonant cavity of connection and the 4th resonant cavity is fixed between second ring plate and third annular slab；Third ring
Connection third resonant cavity and fourth annular plate are fixed between shape plate and fourth annular plate between the exhaust outlet of third housing
The expansion perforated exhaust pipe of chamber；Single order exhaust pipe and second order exhaust pipe and the corresponding part of the second resonant cavity, micropunch are arranged
Tracheae and the corresponding part of third resonant cavity, three rank exhaust pipes and the corresponding part of the 4th resonant cavity and expansion perforation row
Tracheae is equipped with to the 4th corresponding part of resonant cavity along the equally distributed multiple micropores of corresponding tube wall.
Further, be equipped on the first annular plate and third annular slab it is front and rear penetrate through flow through hole；The Fourth Ring
The bend pipe for the exhaust outlet for communicating and be oriented to air-flow third housing with the 4th resonant cavity is fixed on rear side of shape plate；The bend pipe is
Multiple, which part bend pipe corresponds to expansion perforated exhaust pipe setting, remaining bend pipe and expansion perforated exhaust pipe and micropunch row
Tracheae front end is equipped with the expansion exhaust pipe forward extended out；The diameter of bend pipe is more than corresponding expansion perforated exhaust pipe or expansion
Open the diameter of exhaust pipe.
The beneficial effects of the invention are as follows：The diesel engine vent gas reclaiming clean of the present invention and noise reduction set composite, will be catalyzed oxygen
Change converter DOC to be combined with resonator chamber, compact-sized, space utilization is reasonable, and sound wave diffuses into resonator chamber, with accent
Wall friction radiates and cavity internal resonance cancellation reduces acoustic energy, and then reduce low-frequency noise, and can alleviate air-flow to first
The impact of housing, further reduces noise, reach can catalysis oxidation pernicious gas and the Middle and low frequency noise that disappears purpose, it is real
Existing tail gas clean-up and noise reduction work together, and simple in structure, at low cost, service life is long, is easily installed and dismantles；Tail gas clean-up and
Acoustical absorptivity is high.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is exhaust silencer fragmentary isometric views；
Fig. 3 is microparticles collection device structure diagram；
Fig. 4 is microparticles collection device fragmentary isometric views.
Specific embodiment
Fig. 1 is the structural diagram of the present invention；Fig. 2 is exhaust silencer fragmentary isometric views；Fig. 3 is microparticles collection device
Structure diagram；Fig. 4 is microparticles collection device fragmentary isometric views, as shown in the figure：The diesel engine vent gas recycling of the present embodiment
Purification and noise reduction set composite, including catalytic oxidizing equipment, microparticles collection device and exhaust silencer；The catalytic oxidizing equipment
Including the catalyst carrier for purifying 2 for being equipped with the first shell 1 of air inlet and exhaust outlet and being fixed in first shell 1；Purification
Supported catalyst in catalyst carrier 2；The first shell 1 corresponds to 2 side of catalyst carrier for purifying and is equipped with the first resonant cavity 3 simultaneously
And first resonant cavity 3 accent towards catalyst carrier for purifying 2；The microparticles collection device is fixed on the exhaust of first shell 1
Mouth is used to adsorbing and filtering PM particles；The exhaust silencer is fixed on the exhaust end of microparticles collection device；Catalytic oxidizing equipment,
Microparticles collection device and exhaust silencer three are linked together by flange arrangement, are easily installed and are dismantled, independent per part
Working efficiency is high, and co-operation can be achieved to mutually promote, and vent gas treatment and noise is made to reduce while realize, greatly improves net
Change and noise reduction efficacy；Diesel engine vent gas flow to first shell 1 by the air inlet of first shell 1 by catalyst carrier for purifying 2
Exhaust outlet, catalyst carrier for purifying 2 are fixed on the inner wall of first shell 1, and the side of catalyst carrier for purifying 2 refers to purifying and catalyzing
The surface that agent carrier 2 is connect with first shell 1 corresponds to the first resonance of 2 side of catalyst carrier for purifying setting in first shell 1
Chamber 3, compact-sized, space utilization is reasonable, and catalysis oxidation converter DOC is combined with resonator chamber, and tail gas is to flow through DOC net
During changing 2 duct of catalyst carrier, the substances such as HC therein enter work by the primary air area in 2 duct of catalyst carrier for purifying
Property layer, be adsorbed in the active layer surface of cordierite (Almasilate) that carrier duct coating wall covers and form complex compound, complex compound exists
The product after catalysis reaction occurs under the action of Ti-Si catalyst from cordierite (Almasilate) active layer surface desorption, finally
PM control zones are entered by diffusion admittance in a manner of back-diffusion；Sound wave diffuses into the first resonant cavity 3, radiates with accent wall friction
Acoustic energy is reduced, and then reduce low-frequency noise with cavity internal resonance cancellation, and air-flow rushing to first shell 1 can be alleviated
Hit, further reduce noise, reach can catalysis oxidation pernicious gas and the Middle and low frequency noise that disappears purpose.
In the present embodiment, the first shell 1 corresponds to its own air inlet and is to the part between catalyst carrier for purifying 2
The pyramidal structure become larger along airflow direction cross section, forms unexpected expansion chambers, acoustic impedance is caused to be mutated by the abrupt change of cross-section,
Using the principle for interfering cancellation, part low frequency induction noise is eliminated.
In the present embodiment, first resonant cavity 3 is multiple and around 2 side close-packed arrays of catalyst carrier for purifying；
First resonant cavity 3 is surrounded by the inner cylinder 4 being set in first shell 1 and the partition board 5 being fixed between inner cylinder 4 and first shell 1；Institute
Partition board 5 is stated to include along the circumferentially disposed annular partition of inner cylinder 4 and the longitudinal baffle for being parallel to 4 axis of inner cylinder；Annular partition and vertical
It is fixed together to partition board in right-angled intersection formula, the accent of the first resonant cavity 3 is set on inner cylinder 4 and is round closed-entry knot
Structure, the first resonant cavity 3 are compact arranged multiple small cavity configurations, can preferably realize resonance cancellation, further reduce low frequency and make an uproar
Gap between first shell 1 and inner cylinder 4 is separated by sound, the first resonant cavity 3 by using partition board 5, and cleaning catalyst carries
Body 2 is fixed on 4 inner wall of inner cylinder；Round closed-entry structure refers to that the accent of the first resonant cavity 3 is less than the section of the first resonant cavity 3,
The first resonant cavity 3 is made to form the small and internal broad structure of accent；Partition board 5 can also be such as lower structure：It is circumferentially set including inner cylinder 4
The helical baffle put and the longitudinal baffle for being parallel to 4 axis of inner cylinder；Helical baffle is integrally formed with inner cylinder 4；Longitudinal baffle and
One housing 1 is integrally formed, and longitudinal baffle is equipped with the multiple card slots screwed in for helical baffle, the distance between card slot and spiral every
The screw pitch of plate is equal, and overall construction intensity is high, easy to process, and when assembling screws in inner cylinder 4 in first shell 1, easy to operate, knot
Structure consolidates, and the gap between inner cylinder 4 and first shell 1 is separated into the first resonant cavity 3 using helical baffle and longitudinal baffle.
In the present embodiment, the catalyst carrier for purifying 2 is equipped with the multiple ducts being arranged in juxtaposition, and titanium is fixed between duct
Si catalyst makes catalyst be not easy to reveal, stable and adaptable, and catalyst carrier for purifying is to form netted knot by cordierite
Structure, forms intensive duct, cordierite diameter 40-100nm, fixes Ti-Si catalyst between duct, i.e. Ti-Si catalyst is fixed on
It is separated in the carrier structure between adjoining cell channels, duct wall surface coating cordierite (Almasilate) is as active layer, by work
Property layer material, is uniformly distributed catalyst, by diffusion mechanism, reaches better catalytic oxidation effect, cause air flow through purification
Achieve the purpose that carry out catalysis oxidation conversion to exhaust gas during duct in catalyst carrier 2.
In the present embodiment, the microparticles collection device includes second shell 6 and the cellular pottery being fixed in second shell 6
Ceramic carrier；The second shell 6 is fixed on the exhaust outlet of first shell 1 and is communicated with first shell 1；The ceramic honeycomb carries
Dislocation type is fixed between body includes the honeycomb ceramics 7 of multiple air flues with parallel side-by-side arrangement and corresponds to two air flues of arbitrary neighborhood
In the baffle 8 in each air flue；Partition board in honeycomb ceramics 7 between arbitrary two adjacent air flue is cordierite filter layer, passes through 8 energy of baffle
The circulation of corresponding air flue interior air-flow is enough blocked, therefore enters the air-flow in honeycomb ceramics 7 under the barrier effect of baffle 8 across adjacent
Cordierite filter layer between two air flues enters adjacent air flue, realizes and whole air-flows are effectively filtered, and purification efficiency is high,
Multiple baffles 8 in air flue can be set, air-flow is made repeatedly to be filtered by the wall surface between adjacent air flue, using diffusion, intercepted
With inertial collision mechanism, by particulate deposits within cellular structure ceramic carrier, when particle is stacked into port certain position, due to this
Position has been right up to the fuel value point of particle, in addition this device is applied to large-scale diesel engine, when flowing through microparticles collection device
Delivery temperature is more than particle ignition temperature, so can be directly realized by the burning of particle in port position, and then realizes that particle is caught
The regeneration of acquisition means ensures the normal operating conditions of microparticles collection device.
In the present embodiment, liner 9 is equipped between the cellular structure ceramic carrier and second shell 6, is not only improved cellular
The stability of ceramic monolith mounting structure, and vibration and punching between cellular structure ceramic carrier and second shell 6 can be buffered
It hits, noise can be reduced and reduces equipment failure rate.
In the present embodiment, the exhaust silencer includes the third housing 10 equipped with air inlet and exhaust outlet and is fixed on
In third housing 10 and the air inlet of third housing 10 is connected to the staged reducing exhaust pipe of exhaust outlet；The staged reducing
The inlet end diameter of exhaust pipe is more than exhaust end diameter, and staged reducing exhaust pipe becomes smaller successively including caliber and plug-in type is set
Single order exhaust pipe 11, the 12 and three rank exhaust pipe 13 of second order exhaust pipe put；The air inlet of third housing 10 is fixed on micro particle catching
Device；Second order exhaust pipe 12 is inserted into the exit of single order exhaust pipe 11, and three rank exhaust pipes 13 are inserted into the outlet of second order exhaust pipe 12
Place, makes acoustic impedance mutate using the inserting pipe-type structure combination abrupt change of cross-section, so as to fulfill interference cancellation, reaches the middle low frequency that disappears
The purpose of noise realizes that vent gas treatment and noise reduction work together, and simple in structure, at low cost, service life is long, is easily installed and tears open
It unloads, acoustical absorptivity is high, and generation back pressure is small, and core technology has universality, can be subject to restoration and reuse in similar field.
In the present embodiment, the staged reducing exhaust pipe is fixed on 10 inner wall of third housing, institute by annular slab component
It states annular slab component and includes the first annular plate 14, the second annular slab 15, third ring along staged reducing exhaust pipe axial alignment
Shape plate 16 and fourth annular plate 17；First annular plate 14 is set on 11 middle front part of single order exhaust pipe；Second annular slab 15 is set on second order
The rear end of exhaust pipe 12 makes to form the second resonant cavity between the second annular slab 15 and first annular plate 14；Third annular slab 16 is set on
The middle part of three rank exhaust pipes 13 makes to form third resonant cavity, fourth annular plate 17 between 16 and second annular slab 15 of third annular slab
Make to form the 4th resonant cavity between fourth annular plate 17 and third annular slab 16 set on the middle and back of three rank exhaust pipes 13, make gas
Reaction is rubbed, collided and interfered in each resonant cavity, has converted acoustic energy into thermal energy, so as to eliminate high-frequency noise, together
When each annular slab provide reliable and stable mounting structure for staged reducing exhaust pipe, compact-sized, space utilization is reasonable,
And impact of the air-flow to third housing 10 can be alleviated, further reduce noise.
In the present embodiment, between the rear end of the single order exhaust pipe 11 and second order exhaust pipe 12 by ring sealing plate connection simultaneously
Sealing；The micropunch row of the second resonant cavity of connection and the 4th resonant cavity is fixed between second annular slab 15 and third annular slab 16
Tracheae 18；Connection third resonant cavity is fixed between third annular slab 16 and fourth annular plate 17 and fourth annular plate 17 arrives third
The expansion perforated exhaust pipe 19 of chamber between the exhaust outlet of housing 10；Single order exhaust pipe 11 and second order exhaust pipe 12 and second are common
The corresponding part of the chamber that shakes, micropunch exhaust pipe 18 and the corresponding part of third resonant cavity, three rank exhaust pipes 13 and the 4th are common
The corresponding part of the chamber that shakes and expansion perforated exhaust pipe 19 are equipped with to the 4th corresponding part of resonant cavity along corresponding tube wall
Equally distributed multiple micropores 20, make staged reducing exhaust pipe and the second resonant cavity, third resonant cavity and the 4th resonant cavity it
Between and each chamber between by micropore 20 or the effective intercommunication of pipeline, friction heat dissipation, consumption when gas expansion passes through hole wall
Acoustic energy.
In the present embodiment, front and rear perforation is equipped on the first annular plate 14 and third annular slab 16 flows through hole 21；
The rear side of the fourth annular plate 17 is fixed with the exhaust outlet that communicates and be oriented to air-flow third housing 10 with the 4th resonant cavity
Bend pipe 22；To be multiple, which part bend pipe 22 corresponds to expansion perforated exhaust pipe 19 and sets the bend pipe 22, remaining bend pipe 22 and
Each expansion perforated exhaust pipe 19 and 18 front end of micropunch exhaust pipe are equipped with the expansion exhaust pipe 23 forward extended out；Bend pipe 22
Diameter is more than corresponding expansion perforated exhaust pipe 19 or expands the diameter of exhaust pipe 23, by expansion perforated exhaust pipe 19 and expands
The air-flow for opening exhaust pipe 23 into bend pipe 22 causes acoustic impedance to be mutated by the abrupt change of cross-section, utilizes the principle for interfering cancellation, eliminates
Partial noise, the air-flow of 16 both sides of first annular plate 14 and third annular slab can be carried out by flowing through hole 21 to a certain extent
Circulation improves the balance of system, friction heat dissipation, sound energy consumption, the exhaust ports design of bend pipe 22 when gas expansion passes through hole wall
Into 60 ° of convective structures, the partial noise of rear end remnants is made to generate interaction using convection mechanism, by the collision of molecule and dry
Relating to cancellation reduces multifrequency time noise, finally using the big performance of staged reducing exhaust pipe air-flow, the gas for discharging bend pipe 22
The exhaust outlet discharge of third housing 10 is flowed under main exhaust airflow function, ensure that gas is not blocked, realize preferably
Circulation.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail in good embodiment, it will be understood by those of ordinary skill in the art that, it can be to the skill of the present invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the right of invention.
Claims (7)
1. a kind of diesel engine vent gas reclaiming clean and noise reduction set composite, it is characterised in that：It is caught including catalytic oxidizing equipment, particle
Acquisition means and exhaust silencer；The catalytic oxidizing equipment includes the first shell equipped with air inlet and exhaust outlet and is fixed on
Catalyst carrier for purifying in first shell；Supported catalyst on catalyst carrier for purifying；The first shell corresponds to purification and urges
Agent carrier side is equipped with the accent of the first resonant cavity and the first resonant cavity towards catalyst carrier for purifying；The micro particle catching
Device is fixed on the exhaust outlet of first shell for adsorbing and filtering PM particles；The exhaust silencer is fixed on micro particle catching dress
The exhaust end put；First resonant cavity is multiple and around catalyst carrier for purifying side close-packed arrays；First resonant cavity
It is surrounded by the inner cylinder being set in first shell and the partition board being fixed between inner cylinder and first shell；The partition board is included along inner cylinder
Circumferentially disposed annular partition and the longitudinal baffle for being parallel to inner cylinder axis；Annular partition and longitudinal baffle are consolidated in right-angled intersection formula
It is scheduled on together, the accent of the first resonant cavity is set on inner cylinder and is round closed-entry structure；The first shell corresponds to it certainly
Body air inlet is the pyramidal structure become larger along airflow direction cross section to the part between catalyst carrier for purifying.
2. diesel engine vent gas reclaiming clean according to claim 1 and noise reduction set composite, it is characterised in that：The purification
Catalyst carrier is equipped with the multiple ducts being arranged in juxtaposition, and Ti-Si catalyst is fixed between duct.
3. diesel engine vent gas reclaiming clean according to claim 1 and noise reduction set composite, it is characterised in that：The particle
Capturing device includes second shell and the cellular structure ceramic carrier being fixed in second shell；The second shell is fixed on first
The exhaust outlet of housing is simultaneously communicated with first shell.
4. diesel engine vent gas reclaiming clean according to claim 1 and noise reduction set composite, it is characterised in that：The exhaust
Silencer include the third housing equipped with air inlet and exhaust outlet and be fixed in third housing and connect third housing into
Gas port to exhaust outlet staged reducing exhaust pipe；The staged reducing exhaust pipe include being linked in sequence and caliber mutually not
Identical single order exhaust pipe, second order exhaust pipe and three rank exhaust pipes；The air inlet of third housing is fixed on microparticles collection device.
5. diesel engine vent gas reclaiming clean according to claim 4 and noise reduction set composite, it is characterised in that：The ladder
Formula reducing exhaust pipe is fixed on third inner walls by annular slab component, and the annular slab component includes arranging along staged reducing
First annular plate, the second annular slab, third annular slab and the fourth annular plate of tracheae axial alignment；First annular plate is set on single order
Exhaust pipe middle front part；The rear end that second annular slab is set on second order exhaust pipe makes to be formed the between the second annular slab and first annular plate
Two resonant cavities；Third annular slab, which is set in the middle part of three rank exhaust pipes, is total to formation third between third annular slab and the second annular slab
Shake chamber, and the middle and back that fourth annular plate is set on three rank exhaust pipes makes to form the 4th resonance between fourth annular plate and third annular slab
Chamber.
6. diesel engine vent gas reclaiming clean according to claim 5 and noise reduction set composite, it is characterised in that：The single order
It connects and seals by ring sealing plate between the rear end of exhaust pipe and second order exhaust pipe；Between second annular slab and third annular slab
It is fixed with the micropunch exhaust pipe of the second resonant cavity of connection and the 4th resonant cavity；It is fixed between third annular slab and fourth annular plate
There is the expansion perforated exhaust pipe of connection third resonant cavity and fourth annular plate to the chamber between the exhaust outlet of third housing；Single order
Exhaust pipe and second order exhaust pipe and the corresponding part of the second resonant cavity, the micropunch exhaust pipe and corresponding portion of third resonant cavity
Point, three rank exhaust pipes and the corresponding part of the 4th resonant cavity and expand perforated exhaust pipe and the 4th corresponding portion of resonant cavity
Divide and be equipped with along the equally distributed multiple micropores of corresponding tube wall.
7. diesel engine vent gas reclaiming clean according to claim 6 and noise reduction set composite, it is characterised in that：Described first
Front and rear perforation is equipped on annular slab and third annular slab flows through hole；It is fixed on rear side of the fourth annular plate and is total to the 4th
The chamber that shakes communicates and is oriented to air-flow the bend pipe of the exhaust outlet of third housing；The bend pipe is multiple, and which part bend pipe, which corresponds to, to be expanded
It opens perforated exhaust pipe setting, remaining bend pipe and expansion perforated exhaust pipe and micropunch exhaust pipe front end is equipped with what is forward extended out
Expand exhaust pipe；The diameter of bend pipe is more than corresponding expansion perforated exhaust pipe or expands the diameter of exhaust pipe.
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| CN201610216680.XA CN105736097B (en) | 2016-04-08 | 2016-04-08 | Diesel engine vent gas reclaiming clean and noise reduction set composite |
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| CN201610216680.XA CN105736097B (en) | 2016-04-08 | 2016-04-08 | Diesel engine vent gas reclaiming clean and noise reduction set composite |
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| CN105736097B true CN105736097B (en) | 2018-06-22 |
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| CN106782485B (en) * | 2016-11-18 | 2021-04-20 | 宁德市银通发电设备有限公司 | Impedance composite muffler |
| CN108223061A (en) * | 2017-11-30 | 2018-06-29 | 昆山邦泰汽车零部件制造有限公司 | A kind of automobile exhaust gas purifying installation |
| US11118544B2 (en) * | 2018-12-14 | 2021-09-14 | Mahle International Gmbh | Hydrocarbon adsorber on high-frequency resonator |
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| CN101922342A (en) * | 2010-09-21 | 2010-12-22 | 中国第一汽车集团公司 | Straight-through particle filtration post-processor assembly |
| CN201865727U (en) * | 2010-11-26 | 2011-06-15 | 郑州三维内燃机净化消声技术有限公司 | Silencing device for reducing noise of internal combustion engine |
| CN203130211U (en) * | 2013-03-19 | 2013-08-14 | 长春市鸿昊汽车零部件有限责任公司 | Transparent type particle-trapping postprocessor assembly |
| CN104234791A (en) * | 2014-09-03 | 2014-12-24 | 江阴华音陶瓷机电科技有限公司 | Exhaust filter |
| CN104564252A (en) * | 2015-01-14 | 2015-04-29 | 浙江邦得利汽车环保技术有限公司 | After-treatment device for diesel vehicle emission |
| CN205477848U (en) * | 2016-04-08 | 2016-08-17 | 重庆交通大学 | A tail gas is retrieved purification and is fallen set composite of making an uproar for diesel engine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9757675B2 (en) * | 2013-01-29 | 2017-09-12 | Corning Incorporated | Partial wall-flow filter and method |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922342A (en) * | 2010-09-21 | 2010-12-22 | 中国第一汽车集团公司 | Straight-through particle filtration post-processor assembly |
| CN201865727U (en) * | 2010-11-26 | 2011-06-15 | 郑州三维内燃机净化消声技术有限公司 | Silencing device for reducing noise of internal combustion engine |
| CN203130211U (en) * | 2013-03-19 | 2013-08-14 | 长春市鸿昊汽车零部件有限责任公司 | Transparent type particle-trapping postprocessor assembly |
| CN104234791A (en) * | 2014-09-03 | 2014-12-24 | 江阴华音陶瓷机电科技有限公司 | Exhaust filter |
| CN104564252A (en) * | 2015-01-14 | 2015-04-29 | 浙江邦得利汽车环保技术有限公司 | After-treatment device for diesel vehicle emission |
| CN205477848U (en) * | 2016-04-08 | 2016-08-17 | 重庆交通大学 | A tail gas is retrieved purification and is fallen set composite of making an uproar for diesel engine |
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|---|---|
| CN105736097A (en) | 2016-07-06 |
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