CN115263500B - Vehicle-mounted ultrasonic fluid atomizing and spraying device - Google Patents
Vehicle-mounted ultrasonic fluid atomizing and spraying device Download PDFInfo
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- CN115263500B CN115263500B CN202211169277.8A CN202211169277A CN115263500B CN 115263500 B CN115263500 B CN 115263500B CN 202211169277 A CN202211169277 A CN 202211169277A CN 115263500 B CN115263500 B CN 115263500B
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- ultrasonic atomization
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- 238000005507 spraying Methods 0.000 title claims abstract description 36
- 239000012530 fluid Substances 0.000 title claims abstract description 19
- 238000000889 atomisation Methods 0.000 claims abstract description 77
- 239000011229 interlayer Substances 0.000 claims abstract description 48
- 238000007790 scraping Methods 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 71
- 238000002347 injection Methods 0.000 claims description 68
- 239000007924 injection Substances 0.000 claims description 68
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 59
- 239000004202 carbamide Substances 0.000 claims description 59
- 238000007789 sealing Methods 0.000 claims description 36
- 238000004140 cleaning Methods 0.000 claims description 30
- 239000000243 solution Substances 0.000 claims description 18
- 239000007921 spray Substances 0.000 claims description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 51
- 239000007789 gas Substances 0.000 description 27
- 239000013078 crystal Substances 0.000 description 26
- 238000006555 catalytic reaction Methods 0.000 description 15
- 239000010410 layer Substances 0.000 description 13
- 239000011550 stock solution Substances 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000012806 monitoring device Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
- B05B7/0425—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid without any source of compressed gas, e.g. the air being sucked by the pressurised liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
- B05B7/1254—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated
- B05B7/1263—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated pneumatically actuated
- B05B7/1272—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated pneumatically actuated actuated by gas involved in spraying, i.e. exiting the nozzle, e.g. as a spraying or jet shaping gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
-
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
-
- 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
- F01N3/18—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 methods of operation; Control
- F01N3/20—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 methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The embodiment of the invention discloses a vehicle-mounted fluid ultrasonic atomization spraying device, which relates to the technical field of ultrasonic atomization spraying and comprises a mounting seat, an ultrasonic atomization assembly, a spraying pipe, a rotating shell, an air pump and a driving part, wherein the ultrasonic atomization assembly comprises an ultrasonic atomization sheet, an interlayer and a first through hole are arranged in the spraying pipe, the air pump is connected with the upper part of the spraying pipe, the rotating shell is movably sleeved in the interlayer, a second through hole is formed in the surface of the rotating shell, the second through hole corresponds to the first through hole in position, a first scraping sheet and a second scraping sheet are arranged on the inner ring of the end surface of the rotating shell, which is exposed out of the interlayer, the first scraping sheet is in surface contact with the ultrasonic atomization sheet, the second scraping sheet is in contact with the inner wall of the spraying pipe, the driving part is arranged on the outer side of the spraying pipe, and the rotating shell is in transmission connection with the driving part.
Description
Technical Field
The invention relates to the technical field of ultrasonic atomization and injection, in particular to a vehicle-mounted ultrasonic atomization and injection device for fluid.
Background
In order to purify nitrogen oxides in automobile exhaust, an SCR system is installed on an ordinary automobile, and comprises a urea tank (loaded with diesel engine exhaust treatment liquid), a urea pump and an SCR catalytic reaction tank.
The ultrasonic atomization principle is combined with the urea pump, so that the reaction speed of the diesel engine tail gas treatment liquid and nitrogen oxides can be increased, and the case using the ultrasonic atomization principle is also available in the prior art, such as: patent grant publication No. CN 209810633U's patent discloses an ultrasonic atomization injection apparatus, includes the casing, be fixed with in the casing: the stock solution bin is used for storing stock solution; the mixer is positioned at the liquid outlet of the stock solution bin and is in sealing connection with the stock solution bin; the ultrasonic atomization sheet is positioned between the liquid outlet of the stock solution bin and the mixer and is used for atomizing the stock solution; the fan is used for compressing the gas to form airflow, and an air outlet of the fan is hermetically connected with the mixer through an air duct; the condensed water collecting bin is positioned below the mixer and used for storing condensed reflux stock solution; be equipped with the cavity in the blender and be used for air current and atomizing stoste to mix, the below of blender is equipped with the drainage mouth, the position and the condensate collection storehouse position of drainage mouth correspond, the casing is equipped with the vent that corresponds with fan air intake position, can solve the problem that remote transmission poor stability and energy utilization are rateed lowly.
However, the above patents are applied in practical applications, especially in the field of automobiles, and have the following defects that firstly, the content of nitrogen oxides in automobile exhaust is not constant, a user cannot select or control the delivery rate of the diesel engine exhaust treatment liquid according to the content of nitrogen oxides, secondly, when the automobile is not used for a long time, urea crystals are easily separated out from the surface of the acoustic wave atomization sheet and the inner wall of the pipeline, and during maintenance, the urea crystals cannot be quickly and effectively cleaned only by a direct washing mode.
Disclosure of Invention
An object of an embodiment of the present invention is to provide an ultrasonic atomizing and spraying device for vehicle-mounted fluid, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an on-vehicle fluidic ultrasonic atomization injection apparatus that uses, includes mount pad, ultrasonic atomization subassembly, injection pipe and air pump, ultrasonic atomization subassembly includes the ultrasonic atomization piece, ultrasonic atomization subassembly, injection pipe and air pump are all installed on the mount pad, ultrasonic atomization subassembly and injection pipe fixed connection, on-vehicle fluidic ultrasonic atomization injection apparatus that uses still includes rotation casing and drive division, be provided with the intermediate layer in the injection pipe, the first through-hole of a plurality of and intermediate layer intercommunication is seted up to the injection pipe inner wall, the air pump is connected with the injection pipe top, and communicates with the intermediate layer, it locates in the intermediate layer to rotate the casing movable sleeve, and rotates the casing and expose in the ultrasonic atomization subassembly, rotate the casing surface and seted up a plurality of group's second through-hole, the position one-to-one correspondence of a plurality of group's second through-hole and a plurality of first through-hole, the gas that the air pump produced is carried to in the injection pipe through intermediate layer, second through-hole and first through-hole for form the air current, thereby be used for discharging the liquid after the ultrasonic atomization piece atomizing, the rotation casing exposes in the inner circle terminal surface of intermediate layer and the doctor-bar, first contact with the ultrasonic atomization piece contact, the drive casing is installed in the rotation casing, the drive portion, is connected with the rotation casing outside drive division.
Preferably, ultrasonic atomization subassembly, air pump and drive division and on-vehicle system electric connection, when the air pump was closed, the drive division drives a plurality of groups second through-holes on the rotation casing and all rotates to the interlayer for prevent that the liquid after the atomizing from revealing.
Preferably, the inner ring of the end surface of the rotating shell, which is exposed out of the interlayer, is fixedly connected with a boss, the first scraper and the second scraper are respectively installed on two sides of the boss, the inner wall of the rotating shell is attached to the surface of the inner wall of the interlayer, the distance between the first scraper and the inner wall of the rotating shell is not less than the wall thickness of the interlayer, and the first scraper is L-shaped;
preferably, the second through hole is inclined toward a direction away from the ultrasonic atomization sheet for preventing backflow of the liquid.
Preferably, ultrasonic atomization subassembly includes liquid storage shell and atomizing casing, liquid storage shell is connected with atomizing casing, the liquid outlet at atomizing casing is installed to the ultrasonic atomization piece, the liquid outlet of atomizing casing and the one end fixed connection of injection pipe, the central axis of ultrasonic atomization piece is unanimous with the central axis of injection pipe or rotation casing.
Preferably, fixedly connected with support frame on the mount pad, injection pipe fixed connection is in the support frame below, the air pump is installed in the support frame top, the upper and lower both sides of injection pipe lateral wall are first sealed casing of fixedly connected with and the sealed casing of second respectively, first sealed casing and the sealed casing of second all communicate with the intermediate layer, the intake pipe is installed to first sealed casing top, the fluid-discharge tube is installed to the sealed casing below of second, the air pump passes through blast pipe and intake-tube connection.
Preferably, the position that the rotation housing lateral wall is close to both ends all is connected with the sealing ring, the sealing ring laminating forms a seal chamber at the intermediate layer inner wall between two sealing rings, rotation housing and the intermediate layer.
Preferably, the fixed cover of lateral wall that the rotation casing exposes in the intermediate layer is equipped with drive gear, the drive division includes driving motor and drive gear, driving motor passes through drive shaft connection drive gear, drive gear and drive gear meshing are connected.
Preferably, the terminal surface of atomizing casing liquid outlet and the terminal surface of injection pipe have all seted up the ring channel, it has the sealing strip to rotate casing end connection, the sealing strip activity cup joints in the ring channel.
Preferably, the air inlet pipe and the liquid discharge pipe are respectively provided with a control valve, when cleaning is carried out, the electromagnetic valve on the liquid discharge pipe is opened, and the electromagnetic valve on the air inlet pipe is closed.
Compared with the prior art, the invention has the beneficial effects that:
1. when automobile exhaust needs to be purified, the ultrasonic atomization sheet can spray urea solution into the injection pipe from the liquid outlet in a foggy form, gas generated by the air pump is sprayed to the axis position of the injection pipe along the inclined second through hole, so that an air flow flowing along the axis direction of the injection pipe is formed, the air flow can drive the foggy urea to flow together, and the outlet of the injection pipe is connected with the SCR catalytic reaction tank through the connecting pipeline, so that the gas mixed with the foggy urea enters the SCR catalytic reaction tank to generate an oxidation reaction with nitrogen oxide discharged from an automobile exhaust pipe, sufficient urea can be discharged to the SCR catalytic reaction tank in a short time, the oxidation reaction speed of the nitrogen oxide is increased, and the purification efficiency of the automobile exhaust is improved;
2. when the urea crystal cleaning device is used for cleaning and maintaining at regular intervals, the rotating shell drives the first scraping blade and the second scraping blade to rotate together, the rotating first scraping blade and the rotating second scraping blade can respectively clean the urea crystals adhered to the inner wall of the injection pipe and the surface of the ultrasonic atomization sheet, when the urea crystals are adhered to the inner wall of the rotating shell, the inner wall of the interlayer is attached to the inner wall of the rotating shell, so that the urea crystals rotating at the first through hole can be cleaned by the first through hole arranged on the inner wall of the injection pipe, the urea crystals positioned in the first through holes at the upper part and the two sides can be matched with cleaning liquid to be washed under the action of self gravity, and the cleaned materials can be collected into the first through hole at the bottom part by the rotation of the first scraping blade, and the cleaned urea crystals on the surface of the ultrasonic atomization sheet flow into the first through hole below the injection pipe together with the cleaning liquid, so that the urea crystal cleaning device has the characteristics of convenience in cleaning and good cleaning effect;
3. when the monitoring device monitors that the content of nitrogen oxides in the automobile exhaust is low, the urea delivery amount can be selectively reduced, and the specific method comprises the following steps: close the air pump, then drive through the drive division and rotate a plurality of groups second through-holes on the casing and all rotate to the intermediate layer in, so, the urea after the atomizing is arranged will be slower to the speed in the SCR catalytic reaction jar, and the atomizing urea who reacts with automobile exhaust nitrogen oxide in the unit interval is just less, when guaranteeing to purify automobile exhaust, can also reduce the waste of urea solution.
Drawings
Fig. 1 is a perspective view of an ultrasonic fluid atomizing and spraying device for vehicles according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view of an ultrasonic fluid atomizing and spraying device for vehicles according to an embodiment of the present invention.
FIG. 3 is a block diagram of an ultrasonic atomizing assembly in an embodiment of the present invention.
Fig. 4 is a perspective view of an atomizing housing in an embodiment of the present invention.
FIG. 5 is a perspective view of an ejector tube in an embodiment of the present invention.
FIG. 6 is a cross-sectional view of an ejector tube in an embodiment of the present invention.
Fig. 7 is a perspective view of a rotating housing in an embodiment of the present invention.
FIG. 8 is an assembly view of the rotating housing and the ejector tube in an embodiment of the present invention.
Fig. 9 is a schematic structural view of an atomizing housing, a rotary housing and an injection pipe in an embodiment of the present invention.
Fig. 10 is an assembly view of the rotary housing and the atomizing housing in the embodiment of the present invention.
FIG. 11 is a cross-sectional view of a rotating housing and a jet stack in an embodiment of the present invention.
Fig. 12 is a partial enlarged view of a in fig. 9 according to the present invention.
In the figure: 1. a mounting seat; 11. a support frame; 2. an ultrasonic atomization component; 21. a liquid storage housing; 22. an atomizing housing; 221. an ultrasonic atomization sheet; 222. an annular groove; 3. an injection pipe; 31. an interlayer; 32. a first sealed housing; 33. a second sealed housing; 34. an air inlet pipe; 35. a liquid discharge pipe; 36. a first through hole; 4. rotating the housing; 41. a transmission gear; 42. a seal ring; 43. a second through hole; 44. a first blade; 45. a second wiper blade; 46. a sealing strip; 47. a boss; 5. an air pump; 51. an exhaust pipe; 6. a drive section.
Detailed Description
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1 to 12, the present embodiment provides a vehicle-mounted fluid ultrasonic atomization spraying apparatus, which includes a mounting base 1, an ultrasonic atomization assembly 2, a spraying tube 3 and an air pump 5, where the ultrasonic atomization assembly 2 includes an ultrasonic atomization sheet 221, the ultrasonic atomization assembly 2, the spraying tube 3 and the air pump 5 are all mounted on the mounting base 1, the ultrasonic atomization assembly 2 and the spraying tube 3 are fixedly connected, the vehicle-mounted fluid ultrasonic atomization spraying apparatus further includes a rotating housing 4 and a driving portion 6, an interlayer 31 is disposed in the spraying tube 3, a plurality of first through holes 36 communicated with the interlayer 31 are formed in an inner wall of the spraying tube 3, the air pump 5 is connected above the spraying tube 3 and communicated with the interlayer 31, the rotating housing 4 is movably sleeved in the interlayer 31, and one end of the rotating housing 4 exposed in the interlayer 31 is movably sleeved in the ultrasonic atomization assembly 2, the surface of the rotating shell 4 is provided with a plurality of groups of second through holes 43, the plurality of groups of second through holes 43 correspond to the plurality of first through holes 36 one by one, gas generated by the air pump 5 is conveyed into the injection pipe 3 through the interlayer 31, the second through holes 43 and the first through holes 36 to form air flow, so that liquid atomized by the ultrasonic atomization sheet 221 is discharged, a first scraping blade 44 and a second scraping blade 45 are arranged on an inner ring of an end surface of the rotating shell 4 exposed out of the interlayer 31, the first scraping blade 44 is in surface contact with the ultrasonic atomization sheet 221, the second scraping blade 45 is in inner wall contact with the injection pipe 3, the driving part 6 is installed on the outer side of the injection pipe 3, the rotating shell 4 is in transmission connection with the driving part 6, and when cleaning is needed, the driving part 6 is used for driving the rotating shell 4 to rotate.
In the above technical solution, a liquid pump is further disposed inside the liquid storage housing 21, a liquid outlet end of the liquid pump is connected to the atomizing housing 22, and is used for conveying urea to the atomizing housing 22, when automobile exhaust gas needs to be purified, after the liquid pump conveys urea in the liquid storage housing 21 into the atomizing housing 22, the ultrasonic atomization sheet 221 can spray urea solution from a liquid outlet to the injection pipe 3 in a foggy form, gas generated by the air pump 5 enters the interlayer 31 through the exhaust pipe 51 and the air inlet pipe 34, because a sealed cavity is formed between the two sealing rings 42 and the rotary housing 4 and the interlayer 31, the gas can be sprayed to the axial position of the injection pipe 3 only along the inclined second through hole 43, so as to form an air flow flowing along the axial direction of the injection pipe 3, the air flow can drive the foggy urea to flow together, an outlet of the injection pipe 3 is connected to the SCR catalytic reaction tank through a connecting pipeline, so that the gas mixed with the foggy urea enters the SCR catalytic reaction tank, and thus the oxidation reaction with nitrogen oxide discharged from the automobile exhaust pipe can be discharged to the catalytic reaction tank in a short time, and the speed of the exhaust gas of the SCR catalytic reaction tank can be increased, thereby improving the efficiency of the purification of the automobile;
during regular cleaning and maintenance, when the rotating shell 4 drives the first scraping blade 44 and the second scraping blade 45 to rotate together, the rotating first scraping blade 44 can clean the urea crystals adhered to the inner wall of the injection pipe 3, the rotating second scraping blade 45 can clean the urea crystals adhered to the surface of the ultrasonic atomization sheet 221, when the urea crystals are adhered to the inner wall of the rotating shell 4, because the inner wall of the interlayer 31 is attached to the inner wall of the rotating shell 4, the urea crystals rotating at the position can be cleaned by the first through holes 36 arranged on the inner wall of the injection pipe 3, the urea crystals in the first through holes 36 on the upper side and the two sides can be matched with the cleaning liquid to be washed away under the action of self gravity when being cleaned, and in addition, the rotation of the first scraping blade 44 can collect the cleaned materials into the first through holes 36 on the bottom, and the cleaned urea crystals on the surface of the ultrasonic atomization sheet 221 and the cleaning liquid flow into the first through holes 36 below the injection pipe 3 together, so that the cleaning is convenient to clean and the cleaning effect is good.
Referring to fig. 1 to 12, as an embodiment of the present invention, the ultrasonic atomization component 2, the air pump 5 and the driving portion 6 are electrically connected to the vehicle-mounted system, when the air pump 5 is turned off, the driving portion 6 drives the plurality of sets of second through holes 43 on the rotating housing 4 to rotate into the interlayer 31, so as to prevent the atomized liquid from leaking.
Among the above technical scheme, including the monitoring devices who is used for detecting nitrogen oxide content in the automobile exhaust in the on-vehicle system, when this monitoring devices monitoring nitrogen oxide content in the automobile exhaust is lower, just can selective reduction urea's transport volume this moment, concrete method is as follows: close air pump 5, then drive through drive division 6 and rotate a plurality of groups second through-hole 43 on the casing 4 and all rotate to intermediate layer 31 in, so, the speed that the urea after the atomizing was arranged in to SCR catalytic reaction jar will be relatively slow, and the atomizing urea who reacts with automobile exhaust nitrogen oxide in the unit interval is just less, when guaranteeing to purify automobile exhaust, can also reduce the waste of urea solution.
Referring to fig. 1 to 11, as an embodiment of the present invention, a boss 47 is fixedly connected to an inner ring of an end surface of the rotary housing 4 exposed outside the interlayer 31, the first wiper 44 and the second wiper 45 are respectively installed at two sides of the boss 47, an inner wall of the rotary housing 4 is attached to an inner wall surface of the interlayer 31, a distance between the first wiper 44 and the inner wall of the rotary housing 4 is not smaller than a wall thickness of the interlayer 31, and the first wiper 44 is L-shaped.
In the above technical solution, when the rotating housing 4 drives the first scraping blade 44 and the second scraping blade 45 to rotate together, the rotating first scraping blade 44 can clean the urea crystals adhered to the inner wall of the injection pipe 3, and the rotating second scraping blade 45 can clean the urea crystals adhered to the surface of the ultrasonic atomization sheet 221.
Referring to fig. 12, as an embodiment of the present invention, the second through hole 43 is inclined toward a direction away from the ultrasonic atomization sheet 221 for preventing the liquid from flowing back.
Referring to fig. 1 to 12, as an embodiment of the present invention, an ultrasonic atomizing assembly 2 includes a liquid storage housing 21 and an atomizing housing 22, the liquid storage housing 21 is connected to the atomizing housing 22, an ultrasonic atomizing plate 221 is installed at a liquid outlet of the atomizing housing 22, the liquid outlet of the atomizing housing 22 is fixedly connected to one end of an injection pipe 3, and a central axis of the ultrasonic atomizing plate 221 is consistent with a central axis of the injection pipe 3 or the rotating housing 4.
In the above technical solution, the gas is sprayed to the axis position of the injection pipe 3 along the inclined second through hole 43, so as to form an air flow flowing along the axis direction of the injection pipe 3, the air flow can drive the atomized urea to flow together, and the outlet of the injection pipe 3 is connected with the SCR catalytic reaction tank through the connecting pipeline.
Referring to fig. 1 to 9, as an embodiment of the present invention, a supporting frame 11 is fixedly connected to a mounting base 1, an injection pipe 3 is fixedly connected below the supporting frame 11, an air pump 5 is installed above the supporting frame 11, a first sealing housing 32 and a second sealing housing 33 are respectively fixedly connected to upper and lower sides of a sidewall of the injection pipe 3, the first sealing housing 32 and the second sealing housing 33 are both communicated with an interlayer 31, an air inlet pipe 34 is installed above the first sealing housing 32, a liquid discharge pipe 35 is installed below the second sealing housing 33, and the air pump 5 is connected to the air inlet pipe 34 through an air discharge pipe 51.
In the above technical solution, the gas generated by the gas pump 5 enters the interlayer 31 through the gas outlet pipe 51 and the gas inlet pipe 34, and is finally sprayed to the axial position of the injection pipe 3 along the inclined second through hole 43.
Referring to fig. 1 to 12, as an embodiment of the present invention, the side wall of the rotating shell 4 is connected to sealing rings 42 at positions close to the two ends, the sealing rings 42 are attached to the inner wall of the interlayer 31, and a sealing cavity is formed between the two sealing rings 42, the rotating shell 4 and the interlayer 31.
In the above technical solution, after the gas generated by the gas pump 5 enters the interlayer 31 through the gas outlet pipe 51 and the gas inlet pipe 34, since a sealed cavity is formed between the two sealing rings 42, the rotating shell 4 and the interlayer 31, the gas can only be sprayed to the axial position of the injection pipe 3 along the inclined second through hole 43.
Referring to fig. 1 to 10, as an embodiment of the present invention, a transmission gear 41 is fixedly sleeved on a side wall of the rotating casing 4 exposed out of the interlayer 31, the driving portion 6 includes a driving motor and a driving gear, the driving motor is connected to the driving gear through a driving shaft, and the transmission gear 41 is engaged with the driving gear.
In the above technical solution, the driving motor drives the rotating housing 4 to rotate through the driving gear and the transmission gear 41.
Referring to fig. 1 to 12, as an embodiment of the present invention, the end surface of the liquid outlet of the atomizing housing 22 and the end surface of the injection pipe 3 are both provided with an annular groove 222, the end of the rotating housing 4 is connected with a sealing strip 46, and the sealing strip 46 is movably sleeved in the annular groove 222.
In the above technical solution, the sealing performance of the whole device is improved by the matching design of the sealing strip 46 and the annular groove 222.
Referring to fig. 1 to 10, as an embodiment of the present invention, control valves are installed on the inlet pipe 34 and the discharge pipe 35, and during cleaning, an electromagnetic valve on the discharge pipe 35 is opened and an electromagnetic valve on the inlet pipe 34 is closed.
In the above-described embodiment, during cleaning, the control valve on the drain pipe 35 is opened, the driving unit 6 and the ultrasonic atomizing sheet 221 are closed, and the urea crystals and the cleaning liquid in the first through hole 36 located below the injection pipe 3 can be discharged through the second through hole 43, the second seal case 33, and the drain pipe 35.
The working principle of the invention is that after the liquid pump conveys the urea in the liquid storage shell 21 into the atomizing shell 22, the ultrasonic atomizing sheet 221 can spray the urea solution into the injection pipe 3 from the liquid outlet in a foggy form, the gas generated by the air pump 5 enters the interlayer 31 through the exhaust pipe 51 and the air inlet pipe 34, and as a sealed cavity is formed between the two sealing rings 42 and the rotating shell 4 and the interlayer 31, the gas can be sprayed to the axial position of the injection pipe 3 only along the inclined second through hole 43, so as to form a gas flow flowing along the axial direction of the injection pipe 3, the gas flow can drive the foggy urea to flow together, the outlet of the injection pipe 3 is connected with the SCR catalytic reaction tank through the connecting pipeline, so, gas that is mingled with vaporific urea gets into in the SCR catalytic reaction jar, thereby take place oxidation reaction with automobile exhaust pipe exhaust nitrogen oxide, can be in the short time with the urea of capacity arrange to SCR catalytic reaction jar, the oxidation reaction's of nitrogen oxide speed has been improved, thereby automobile exhaust's purification efficiency has been improved, among the prior art, electronic monitoring system in the car has been equipped with the device of real-time supervision automobile exhaust nitrogen oxide, when this monitoring devices monitoring out the content of nitrogen oxide in the automobile exhaust lower, just can be selective the delivery volume that reduces urea this moment, concrete method is as follows: close air pump 5, then drive through drive division 6 and rotate a plurality of groups second through-hole 43 on the casing 4 and all rotate to intermediate layer 31 in, so, the speed that the urea after the atomizing was arranged in to SCR catalytic reaction jar will be relatively slow, and the atomizing urea who reacts with automobile exhaust nitrogen oxide in the unit interval is just less, when guaranteeing to purify automobile exhaust, can also reduce the waste of urea solution.
When it is necessary to clean the liquid storage case 21, the ultrasonic atomization sheet 221, and the ejection tube 3, the steps are as follows: firstly, cleaning liquid is injected into the liquid storage shell 21, then the liquid pump and the ultrasonic atomization sheet 221 are started, then the control valve on the air pump 5 and the air inlet pipe 34 is closed, because the driving force of the gas is lost, the cleaning liquid cannot be rapidly discharged from the injection pipe 3, at the moment, the cleaning liquid can be filled on the surface of the ultrasonic atomization sheet 221 and the injection pipe 3 in a mist form, so that the cleaning liquid can be uniformly condensed into liquid on the ultrasonic atomization sheet 221 and the injection pipe 3, then the driving part 6 is started to drive the rotating shell 4 to rotate, then the control valve on the air inlet pipe 34 is closed, when the rotating shell 4 drives the first scraping blade 44 and the second scraping blade 45 to rotate together, the rotating first scraping blade 44 can clean the urea crystals adhered to the inner wall of the injection pipe 3, and the rotating second scraping blade 45 can clean the urea crystals adhered to the surface of the ultrasonic atomization sheet 221, when urea crystals are adhered to the inner wall of the rotating shell 4, because the inner wall of the interlayer 31 is attached to the inner wall of the rotating shell 4, the first through holes 36 formed in the inner wall of the injection pipe 3 can clean the urea crystals rotating at the positions, the urea crystals in the first through holes 36 on the upper side and the two sides can be washed away by the cleaning liquid under the action of self gravity when being cleaned, in addition, the first scraping blade 44 rotates to collect the cleaned materials into the first through holes 36 on the bottom, the cleaned urea crystals on the surface of the ultrasonic atomization sheet 221 flow into the first through holes 36 below the injection pipe 3 together with the cleaning liquid, and after the urea crystals and the cleaning liquid are cleaned for a period of time, the control valve on the liquid discharge pipe 35 is opened, the driving part 6 and the ultrasonic atomization sheet 221 are closed, and the urea crystals and the cleaning liquid in the first through holes 36 below the injection pipe 3 can pass through the second through holes 43, the second sealed shell 33 and the drain pipe 35 are used for draining, and the cleaning device has the characteristics of convenience in cleaning and good cleaning effect.
It should be noted that, although the present specification describes embodiments, each embodiment does not include only a single technical solution, and such description of the specification is only for clarity, and those skilled in the art should take the specification as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art, and the above-mentioned embodiments only express the preferred embodiments of the technical solutions, and the description thereof is more specific and detailed, but should not be construed as limiting the scope of the claims of the technical solutions. It should be noted that various changes, modifications and substitutions may be made by those skilled in the art without departing from the spirit of the invention and these are all within the scope of the invention.
Claims (9)
1. A vehicle-mounted fluid ultrasonic atomization spraying device comprises a mounting seat (1), an ultrasonic atomization assembly (2), a spraying pipe (3) and an air pump (5), wherein the ultrasonic atomization assembly (2) comprises an ultrasonic atomization sheet (221), the ultrasonic atomization assembly (2), the spraying pipe (3) and the air pump (5) are all mounted on the mounting seat (1), and the ultrasonic atomization assembly (2) is fixedly connected with the spraying pipe (3), and the vehicle-mounted fluid ultrasonic atomization spraying device is characterized by further comprising a rotating shell (4) and a driving part (6);
an interlayer (31) is arranged in the injection pipe (3), a plurality of first through holes (36) communicated with the interlayer (31) are formed in the inner wall of the injection pipe (3), the air pump (5) is connected above the injection pipe (3) and communicated with the interlayer (31), the rotating shell (4) is movably sleeved in the interlayer (31), one end, exposed out of the interlayer (31), of the rotating shell (4) is movably sleeved in the ultrasonic atomization assembly (2), a plurality of groups of second through holes (43) are formed in the surface of the rotating shell (4), the plurality of groups of second through holes (43) correspond to the positions of the plurality of first through holes (36) one by one, and gas generated by the air pump (5) is conveyed into the injection pipe (3) through the interlayer (31), the second through holes (43) and the first through holes (36) and is used for forming air flow, so that liquid atomized by the ultrasonic atomization sheet (221) is discharged;
a first scraping blade (44) and a second scraping blade (45) are arranged on the inner ring of the end face of the rotating shell (4) exposed out of the interlayer (31), the first scraping blade (44) is in surface contact with the ultrasonic atomization sheet (221), the second scraping blade (45) is in contact with the inner wall of the injection pipe (3), the driving part (6) is installed on the outer side of the injection pipe (3), the rotating shell (4) is in transmission connection with the driving part (6), and when cleaning is needed, the driving part (6) is used for driving the rotating shell (4) to rotate; the ultrasonic atomization assembly (2) further comprises a liquid storage shell (21) and an atomization shell (22), the liquid storage shell (21) is connected with the atomization shell (22), the ultrasonic atomization sheet (221) is installed at a liquid outlet of the atomization shell (22), the liquid outlet of the atomization shell (22) is fixedly connected with one end of the injection pipe (3), and the central axis of the ultrasonic atomization sheet (221) is consistent with that of the injection pipe (3) or the rotation shell (4); the liquid storage shell (21) is internally provided with a liquid pump, the liquid outlet end of the liquid pump is connected with the atomization shell (22) and used for conveying urea to the atomization shell (22), when automobile exhaust needs to be purified, the liquid pump conveys urea in the liquid storage shell (21) into the atomization shell (22), and the ultrasonic atomization piece (221) can spray urea solution into the injection pipe (3) from the liquid outlet in a foggy mode.
2. The vehicle-mounted ultrasonic fluid atomizing and spraying device according to claim 1, wherein the ultrasonic atomizing assembly (2), the air pump (5) and the driving portion (6) are electrically connected with a vehicle-mounted system, and when the air pump (5) is closed, the driving portion (6) drives a plurality of sets of second through holes (43) in the rotating shell (4) to rotate into the interlayer (31) so as to prevent atomized liquid from leaking.
3. The vehicle-mounted ultrasonic fluid atomizing and spraying device according to claim 2, wherein a boss (47) is fixedly connected to an inner ring of an end surface of the rotating shell (4) exposed out of the interlayer (31), the first scraper (44) and the second scraper (45) are respectively installed on two sides of the boss (47), the inner wall of the rotating shell (4) is attached to the surface of the inner wall of the interlayer (31), the distance between the first scraper (44) and the inner wall of the rotating shell (4) is not smaller than the wall thickness of the interlayer (31), and the first scraper (44) is L-shaped.
4. The ultrasonic atomizing and spraying device for vehicle-mounted fluid according to claim 3, characterized in that said second through hole (43) is inclined in a direction away from the ultrasonic atomizing sheet (221) for preventing backflow of the liquid.
5. The vehicle-mounted ultrasonic fluid atomizing and spraying device according to claim 1, wherein a supporting frame (11) is fixedly connected to the mounting seat (1), the spraying pipe (3) is fixedly connected to the lower portion of the supporting frame (11), the air pump (5) is installed on the upper portion of the supporting frame (11), a first sealing shell (32) and a second sealing shell (33) are fixedly connected to the upper side and the lower side of the side wall of the spraying pipe (3) respectively, the first sealing shell (32) and the second sealing shell (33) are communicated with the interlayer (31), an air inlet pipe (34) is installed on the upper portion of the first sealing shell (32), a liquid discharge pipe (35) is installed on the lower portion of the second sealing shell (33), and the air pump (5) is connected with the air inlet pipe (34) through an air discharge pipe (51).
6. The vehicle-mounted ultrasonic fluid atomizing and spraying device according to claim 5, wherein the side wall of the rotating shell (4) is connected with sealing rings (42) at positions close to the two ends, the sealing rings (42) are attached to the inner wall of the interlayer (31), and a sealing cavity is formed between the two sealing rings (42), the rotating shell (4) and the interlayer (31).
7. The ultrasonic atomizing and spraying device for vehicular fluid according to claim 1, wherein the side wall of the rotary housing (4) exposed out of the interlayer (31) is fixedly sleeved with a transmission gear (41), the driving portion (6) comprises a driving motor and a driving gear, the driving motor is connected with the driving gear through a driving shaft, and the transmission gear (41) is in meshed connection with the driving gear.
8. The vehicle-mounted ultrasonic fluid atomizing and spraying device according to claim 6, wherein annular grooves (222) are formed in the end surface of the liquid outlet of the atomizing housing (22) and the end surface of the spraying pipe (3), the end portion of the rotating housing (4) is connected with a sealing strip (46), and the sealing strip (46) is movably sleeved in the annular grooves (222).
9. The ultrasonic atomizing and spraying device for vehicle-mounted fluid according to claim 5, wherein solenoid valves are mounted on both said air intake pipe (34) and said drain pipe (35), and when cleaning, the solenoid valve on said drain pipe (35) is opened and the solenoid valve on said air intake pipe (34) is closed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211169277.8A CN115263500B (en) | 2022-09-26 | 2022-09-26 | Vehicle-mounted ultrasonic fluid atomizing and spraying device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211169277.8A CN115263500B (en) | 2022-09-26 | 2022-09-26 | Vehicle-mounted ultrasonic fluid atomizing and spraying device |
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| CN115263500A CN115263500A (en) | 2022-11-01 |
| CN115263500B true CN115263500B (en) | 2022-12-02 |
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Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6264113B1 (en) * | 1999-07-19 | 2001-07-24 | Steelcase Inc. | Fluid spraying system |
| JP2003145064A (en) * | 2001-11-12 | 2003-05-20 | Tokyo Electron Ltd | Two-fluid jet nozzle and substrate cleaning device |
| DE102005000873A1 (en) * | 2005-01-05 | 2006-07-13 | Blohm, Maik | Method and apparatus for purifying SCR catalysts to regain activity |
| US8287566B2 (en) * | 2007-10-26 | 2012-10-16 | Cohera Medical, Inc. | Spray devices and methods |
| KR101398573B1 (en) * | 2012-08-23 | 2014-05-22 | 한국에너지기술연구원 | Exhaust gas cleaning device of a diesel vehicle using exhaust heat and ultrasonic waves |
| CN103111445A (en) * | 2012-12-25 | 2013-05-22 | 中国第一汽车股份有限公司 | Cleaning method of removing urea crystallization on pipeline wall |
| WO2016044084A1 (en) * | 2014-09-15 | 2016-03-24 | Tenneco Automotive Operating Company Inc. | Vertical ultrasonic decomposition pipe |
| JP6549908B2 (en) * | 2015-06-05 | 2019-07-24 | イビデン株式会社 | Diffusion member, exhaust gas purification device and use of diffusion member in exhaust gas purification device |
| JP2017180326A (en) * | 2016-03-30 | 2017-10-05 | イビデン株式会社 | Diffusion member, exhaust gas emission control device and use of diffusion member in exhaust gas emission control device |
| JP6676438B2 (en) * | 2016-03-30 | 2020-04-08 | 日本碍子株式会社 | Reducing agent injection device, exhaust gas treatment method, and exhaust gas treatment device |
| KR102383366B1 (en) * | 2017-10-18 | 2022-04-06 | 현대자동차주식회사 | Urea pump module for vehicle |
| US10907524B2 (en) * | 2019-04-11 | 2021-02-02 | Ford Global Technologies, Llc | Helical diesel exhaust fluid mixer |
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Denomination of invention: Fluid ultrasonic atomization and spraying device for vehicle use Granted publication date: 20221202 Pledgee: Bank of Dezhou Limited by Share Ltd. Yantai branch Pledgor: Yantai Luji Automobile Technology Co.,Ltd. Registration number: Y2024980018551 |