CN110508412A - The nozzle and application method that a kind of pneumatic nebulization and effervescent atomization combine - Google Patents
The nozzle and application method that a kind of pneumatic nebulization and effervescent atomization combine Download PDFInfo
- Publication number
- CN110508412A CN110508412A CN201910703110.7A CN201910703110A CN110508412A CN 110508412 A CN110508412 A CN 110508412A CN 201910703110 A CN201910703110 A CN 201910703110A CN 110508412 A CN110508412 A CN 110508412A
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- Prior art keywords
- venturi
- flow passage
- outflux
- inner flow
- nozzle
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Links
- 238000000889 atomisation Methods 0.000 title claims abstract description 44
- 238000002663 nebulization Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000007788 liquid Substances 0.000 claims description 29
- 238000009987 spinning Methods 0.000 claims description 21
- 230000005514 two-phase flow Effects 0.000 claims description 6
- 230000008602 contraction Effects 0.000 claims description 4
- 238000010008 shearing Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 description 4
- 239000007791 liquid phase Substances 0.000 description 4
- 238000013467 fragmentation Methods 0.000 description 3
- 238000006062 fragmentation reaction Methods 0.000 description 3
- 239000012071 phase Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B05B7/0006—Spraying by means of explosions
-
- 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
- B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
- B05B7/062—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet
- B05B7/066—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet with an inner liquid outlet surrounded by at least one annular gas outlet
- B05B7/068—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet with an inner liquid outlet surrounded by at least one annular gas outlet the annular gas outlet being supplied by a gas conduit having an axially concave curved internal surface just upstream said outlet
-
- 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
- B05B7/24—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 with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
- B05B7/26—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device
- B05B7/28—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device in which one liquid or other fluent material is fed or drawn through an orifice into a stream of a carrying fluid
- B05B7/32—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device in which one liquid or other fluent material is fed or drawn through an orifice into a stream of a carrying fluid the fed liquid or other fluent material being under pressure
Abstract
The nozzle and application method that a kind of pneumatic nebulization and effervescent atomization combine, including cylindrical shell, one end is provided with inlet on shell, and other end is provided with cyclone outflux；Several air inlets are offered in the middle part of housing sidewall, venturi-type inner flow passage is provided in shell, venturi-type inner flow passage one end is connected with inlet, the other end is provided with blister outflux, and several solarization air caps are offered on the side wall of the diffuser of venturi-type inner flow passage, are provided with cavity on the outside of venturi-type inner flow passage, cavity one end is connected with air inlet, the other end is connected with cyclone outflux, and solarization air cap one end is connected with cavity, and the other end is connected with venturi-type inner flow passage；Blister outflux is connected with cyclone outflux.Nozzle integrated pneumatic power atomization and bubble atomization technique combine the characteristic that effervescent atomization throughput is small, pneumatic nebulization air pressure is small efficiently and improve atomization uniformity, have the characteristics that efficient, fine, uniform.
Description
Technical field
The nozzle and application method combined the present invention relates to a kind of pneumatic nebulization and effervescent atomization, belongs to biphase gas and liquid flow
Atomization technique field.
Background technique
Atomizer is that one kind can atomize the liquid into ejection, the dress for being present in liquid with fine droplets in air
It sets.
Currently, atomization technique is extensive using field, in nearly all industry such as communications and transportation, agricultural production, fuel combustion
There is application in field；Atomization technique is in terms of non-burning industry, such as catalysis granulation, food processing, powder coating, pesticide spraying
Also it has a wide range of applications.
Existing atomizer is mainly atomizing nozzle and medium atomization nozzle.Hydraulic pressure needed for atomizing nozzle compared with
Height, flow are difficult to adjust；Medium atomization nozzle mainly has effervescent atomization and two kinds of pneumatic nebulization based on gas phase assisted atomization:
Effervescent atomization utilizes jet expansion inside and outside differential pressure, enables micro-bubble rapid expansion after leaving outlet rupture, is by liquid sheet breakup
Liquid mist, required gaseous pressure is higher, but air consumption is smaller；Pneumatic nebulization impacts liquid using high-speed flow, atomizes the liquid into, and consumes
Tolerance is larger, but gaseous pressure is smaller.
Summary of the invention
The nozzle and application method combined the object of the present invention is to provide a kind of pneumatic nebulization and effervescent atomization, efficient group
Pneumatic nebulization and bubble atomization technique have been closed, the microatomization that air consumption is small, required gaseous pressure is low is realized.
To achieve the above object, the present invention adopts the following technical scheme that:
The nozzle that a kind of pneumatic nebulization and effervescent atomization combine, including cylindrical housings, on shell one end be provided with into
Liquid mouth, other end are provided with cyclone outflux；Several air inlets are offered in the middle part of housing sidewall, are provided with venturi in shell
Tubular type inner flow passage, venturi-type inner flow passage one end are connected with inlet, and the other end is provided with blister outflux, venturi-type
Several solarization air caps are offered on the side wall of the diffuser of inner flow passage, are provided with cavity, cavity one on the outside of venturi-type inner flow passage
End is connected with air inlet, and the other end is connected with cyclone outflux, and solarization air cap one end is connected with cavity, the other end and venturi
Tubular type inner flow passage is connected；Blister outflux is connected with cyclone outflux.
A further improvement of the present invention lies in that being provided with several spinning disks in cavity.
A further improvement of the present invention lies in that spinning disk is uniformly distributed circumferentially, single spinning disk rotation angle is 30 ° and arrives
40°。
A further improvement of the present invention lies in that cyclone outflux is located on the central axes of venturi-type inner flow passage.
A further improvement of the present invention lies in that solarization air cap and air inlet are oppositely arranged.
A further improvement of the present invention lies in that blister outflux is circumferentially uniformly distributed.
A further improvement of the present invention lies in that cavity is tapering type air intake duct.
A kind of application method for the nozzle that pneumatic nebulization and effervescent atomization combine, liquid are pressed into inlet, gas by liquid pump
Body is pressed into air inlet by air pump；Liquid flows through venturi-type inner flow passage, is increased by the tapered configuration of venturi-type inner flow passage
Add flow velocity, reduce pressure, enters the gas being passed through on a small quantity by air inlet in liquid in the form of bubbles by several solarization air caps, shape
At blister two phase flow；Blister two phase flow is sprayed after the contraction section of venturi-type inner flow passage accelerates by blister outflux,
Realize the first break of liquid；
The bulk gas that air inlet is passed through is spun up when passing through several spinning disks by swirling inlet road, gas, most
High-speed rotational gas is generated using spinning disk eventually, it is secondary to the primary fragmentation liquid progress after effervescent atomization to go out cyclonic current outlet
Second-time breakage is completed in shearing.
Compared with prior art, the invention has the benefit that
1. it can use to liquidate and make up the pressure demand of effervescent atomization due to using integral type air inlet, it is achieved that
The efficient utilization of pneumatic atomization techniques gaseous pressure characteristic, it is extremely low to gaseous pressure demand, it is only 0.1MPa under optimum condition.
2. because having adjusted spout quantity, and effervescent atomization is atomized as level-one atomization, pneumatic nebulization as second level, institute
To be atomized the remote super single gas phase atomization of the broken uniformity, and under optimum condition water flow up to 70kg/h.
3. pneumatic atomization techniques and bubble atomization technique are effectively combined with by liquid stream, the tapered acceleration of air flow multi-stage,
Realize 23.06 μm of average grain diameter under optimum condition of micro-atomizing.
Efficient combination of the present invention pneumatic nebulization and bubble atomization technique, realize that air consumption is small, required gaseous pressure is low
Subtle, quick break.The nozzle processing technology is simple, is suitable for mass production.
Detailed description of the invention
Fig. 1 is nozzle side sectional view.
Fig. 2 is nozzle facade semi-cutaway.
Fig. 3 is the schematic perspective view of nozzle of the invention.
In figure, 1 is inlet, and 2 be air inlet, and 3 be venturi type inner flow passage, and 4 be solarization air cap, and 5 be blister outflux, 6
It is spinning disk for swirling inlet road, 7,8 be cyclone outflux.
Specific embodiment
The present invention is described in detail With reference to embodiment.
Referring to figure 1, figure 2 and figure 3, the nozzle that the present invention provides a kind of pneumatic nebulization and effervescent atomization combines, including circle
Cylindrical shell, one end is provided with inlet 1 on shell, and other end is provided with cyclone outflux 8；It is offered in the middle part of housing sidewall
Air inlet 2 forms binary channels air inlet specifically, every side opens up an air inlet.Stream in venturi-type is provided in shell
Road 3,3 one end of venturi-type inner flow passage are connected with inlet 1, and the other end is provided with blister outflux 5 and venturi-type
Inner flow passage 3 is connected with blister outflux 5, and cyclone outflux 8 is located on the central axes of venturi-type inner flow passage.
Blister outflux 5 is connected with cyclone outflux 8, and axial distance is 15.3mm.
Venturi-type inner flow passage 3 includes entrance, contraction section and the diffuser being connected, venturi-type inner flow passage 3
Several solarization air caps 4 are offered on the side wall of diffuser, and cavity is provided on the outside of venturi-type inner flow passage 3, is provided with 6 in cavity
A spinning disk 7, cavity one end are connected with two air inlets 2, and the other end is connected with cyclone outflux 8.4 one end of solarization air cap and sky
Chamber is connected, and the other end is connected with venturi-type inner flow passage 3.
The internal diameter of inlet 1 is 16mm in the present invention；The internal diameter of air inlet 2 is 6mm；Venturi-type inner flow passage 3 is by straight
Diameter 16mm tapers to diameter 8mm；Solarization air cap 4 and air inlet 2 are oppositely arranged using the structure that liquidates, enter in this way convenient for gas
In solarization air cap 4, solarization air cap 4 totally 42, diameter 0.7mm, with three row's parallel fashions arrangement, it is conducive to air inlet.Gas is formed in air inlet
Gas a part of bubble is pressed into liquid stream by 4 inside and outside differential pressure of solarization air cap, and a part is liquidated and set due to solarization air cap 4 and air inlet 2
It sets, is washed into solarization air cap 4.
It is blister outflux 5 totally 4, with regular quadrangle arranged, i.e., circumferential to be uniformly distributed, can strengthen crushing effect,
Stablize shattering process and liquid phase flow is significantly increased.
Using the tapering type air intake duct of eddy flow, gas generates high-speed rotational gas by 6 tapered spinning disks 7, realizes pneumatic
Atomised part.
Wherein, blister outflux 5 is circular hole, and radius 1mm, distance is 1.41mm between the adjacent blister outflux center of circle.
6 spinning disks, 7,6 spinning disks 7 are uniformly distributed circumferentially in the present invention, wherein the rotation of single spinning disk 7 angle is
30 °~40 °, preferably 34.5 °, and 7 angle of adjacent spinning disk differs 60 °.Effervescent atomization and pneumatic nebulization are used in the present invention
Integral type air inlet.
Further, cyclone outflux is arranged on the outside of bubble flow spout, using eddy flow high speed shear liquid film, in distance
Best atomizing effect can be obtained at bubble flow spout 12cm, and a large amount of clustering phenomenas of atomizing particle do not occur.
Further, liquid phase flow rate is increased by tapered configuration, reduces pressure, be conducive to during effervescent atomization bubble into
Enter.
Further, solarization air cap totally 42, diameter 0.7mm are conducive to air inlet with three row's parallel fashions arrangement.
Further, blister outflux totally 4, are uniformly distributed circumferentially, and the method for arranging is using bubble breaking in space-time
On inhomogeneities strengthen crushing effect, stablize and shattering process and liquid phase flow is significantly increased.
Further, air inlet is 2, is designed using binary channels, perpendicular to solarization air cap, reduces effervescent atomization to inside and outside
The demand of pressure difference.
Further, spinning disk and cyclonic current outlet group are combined into swirling inlet road, and using tapered cyclone structure, utilization is tapered
Accelerate air-flow, generating eddy flows using 6 spinning disks sprays gas high speed rotation, to the primary fragmentation liquid after effervescent atomization into
Row secondary shearing.
The course of work of nozzle of the invention is as follows: liquid is pressed into inlet 1 by liquid pump, and gas is pressed into binary channels by air pump
Air inlet 2.Liquid flows through venturi-type inner flow passage 3, increases flow velocity by the tapered configuration of venturi-type inner flow passage 3,
Reduce pressure, the gas for being passed through a small amount of air inlet 2 is entered in liquid in the form of bubbles by several solarization air caps 4, forms blister
Two phase flow.Blister two phase flow is sprayed after the contraction section of venturi-type inner flow passage 3 accelerates by blister outflux 5, is utilized
Inhomogeneities of the bubble breaking on space-time strengthens crushing effect, stablizes shattering process and liquid phase flow is significantly increased, and realizes liquid
The first break of body.
Meanwhile most of gas that air inlet 2 is passed through, by swirling inlet road 6, which uses tapered eddy flow
Structure, i.e., be provided with spinning disk in swirling inlet road 6, the structure in swirling inlet road 6 is tapered configuration.Gas passes through 6 eddy flows
It is spun up when piece 7, finally generates high-speed rotational gas using spinning disk 7, after going out the 8 pairs of effervescent atomizations in cyclonic current outlet
Primary fragmentation liquid carries out secondary shearing, completes second-time breakage.
Claims (8)
1. the nozzle that a kind of pneumatic nebulization and effervescent atomization combine, which is characterized in that including cylindrical housings, one end on shell
It is provided with inlet (1), other end is provided with cyclone outflux (8)；Several air inlets (2) are offered in the middle part of housing sidewall,
It is provided in shell venturi-type inner flow passage (3), venturi-type inner flow passage (3) one end is connected with inlet (1), the other end
It is provided with blister outflux (5), is offered on the side wall of the diffuser of venturi-type inner flow passage (3) several solarization air caps (4), text
It is provided with cavity on the outside of venturi formula inner flow passage (3), cavity one end is connected with air inlet (2), the other end and cyclone outflux (8)
It is connected, solarization air cap (4) one end is connected with cavity, and the other end is connected with venturi-type inner flow passage (3)；Blister outflux
(5) it is connected with cyclone outflux (8).
2. the nozzle that a kind of pneumatic nebulization according to claim 1 and effervescent atomization combine, which is characterized in that in cavity
It is provided with several spinning disks (7).
3. the nozzle that a kind of pneumatic nebulization according to claim 2 and effervescent atomization combine, which is characterized in that spinning disk
(7) it is uniformly distributed circumferentially, single spinning disk (7) rotation angle is 30 ° to 40 °.
4. the nozzle that a kind of pneumatic nebulization according to claim 1 and effervescent atomization combine, which is characterized in that cyclonic current
Outlet (8) is located on the central axes of venturi-type inner flow passage.
5. the nozzle that a kind of pneumatic nebulization according to claim 1 and effervescent atomization combine, which is characterized in that solarization air cap
(4) it is oppositely arranged with air inlet (2).
6. the nozzle that a kind of pneumatic nebulization according to claim 1 and effervescent atomization combine, which is characterized in that bubble flow
Outlet (5) is circumferentially uniformly distributed.
7. the nozzle that a kind of pneumatic nebulization according to claim 1 and effervescent atomization combine, which is characterized in that cavity is
Tapering type air intake duct.
8. a kind of application method for the nozzle that pneumatic nebulization as described in claim 1 and effervescent atomization combine, feature exist
In liquid is pressed into inlet (1) by liquid pump, and gas is pressed into air inlet (2) by air pump；Liquid flows through venturi-type inner flow passage
(3), flow velocity is increased by the tapered configuration of venturi-type inner flow passage (3), reduces pressure, makes to be passed through by air inlet (2) on a small quantity
Gas by several solarization air caps (4) in the form of bubbles enter liquid in, formed blister two phase flow；Blister two phase flow is by literary mound
In tubular type inner flow passage (3) contraction section accelerate after, by blister outflux (5) spray, realize the first break of liquid；
Meanwhile the bulk gas that air inlet (2) is passed through, by swirling inlet road (6), gas passes through several spinning disks (7) Shi Beixuan
Turn to accelerate, finally generate high-speed rotational gas using spinning disk (7), goes out cyclonic current outlet (8) to primary after effervescent atomization
Fracturing fluid carries out secondary shearing, completes second-time breakage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910703110.7A CN110508412A (en) | 2019-07-31 | 2019-07-31 | The nozzle and application method that a kind of pneumatic nebulization and effervescent atomization combine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910703110.7A CN110508412A (en) | 2019-07-31 | 2019-07-31 | The nozzle and application method that a kind of pneumatic nebulization and effervescent atomization combine |
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| CN110508412A true CN110508412A (en) | 2019-11-29 |
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| CN201910703110.7A Pending CN110508412A (en) | 2019-07-31 | 2019-07-31 | The nozzle and application method that a kind of pneumatic nebulization and effervescent atomization combine |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111617897A (en) * | 2020-05-21 | 2020-09-04 | 中国船舶重工集团公司第七一六研究所 | Multifunctional spray gun system for repairing ship |
| CN111742910A (en) * | 2020-07-17 | 2020-10-09 | 唐山市会恩科技有限公司 | Rotatory atomising head of membrane type in advance |
| CN112974012A (en) * | 2021-04-08 | 2021-06-18 | 西安交通大学 | Gas-phase auxiliary atomizing nozzle with built-in magnetizing structure and atomizing method |
| CN114146522A (en) * | 2021-11-30 | 2022-03-08 | 华能吉林发电有限公司长春热电厂 | Venturi wet dust removal device |
| CN114871005A (en) * | 2022-06-02 | 2022-08-09 | 重庆大学 | Icing wind tunnel nozzle based on different distribution forms for feedback adjustment |
| WO2023207292A1 (en) * | 2022-04-29 | 2023-11-02 | 海南摩尔兄弟科技有限公司 | Electronic atomization device and liquid storage atomization assembly thereof |
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| EP0389230A2 (en) * | 1989-03-21 | 1990-09-26 | The BOC Group plc | Dissolution of gas |
| CN201503015U (en) * | 2009-10-21 | 2010-06-09 | 东南大学 | Adjustable spiral bubble atomizer |
| CN103861753A (en) * | 2014-03-24 | 2014-06-18 | 武汉科技大学 | Multistage atomization gas-liquid two-phase large-caliber mist nozzle |
| CN106216126A (en) * | 2016-09-11 | 2016-12-14 | 中国计量大学 | It is applicable to the effervescent atomizer of shear shinning non-Newtonian fluid |
| CN210875853U (en) * | 2019-07-31 | 2020-06-30 | 西安交通大学 | Nozzle combining pneumatic atomization and bubble atomization |
| WO2020134068A1 (en) * | 2018-12-25 | 2020-07-02 | 江苏大学 | Gas-liquid two-phase flow atomizing nozzle and design method therefor |
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2019
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| EP0389230A2 (en) * | 1989-03-21 | 1990-09-26 | The BOC Group plc | Dissolution of gas |
| CN201503015U (en) * | 2009-10-21 | 2010-06-09 | 东南大学 | Adjustable spiral bubble atomizer |
| CN103861753A (en) * | 2014-03-24 | 2014-06-18 | 武汉科技大学 | Multistage atomization gas-liquid two-phase large-caliber mist nozzle |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111617897A (en) * | 2020-05-21 | 2020-09-04 | 中国船舶重工集团公司第七一六研究所 | Multifunctional spray gun system for repairing ship |
| CN111742910A (en) * | 2020-07-17 | 2020-10-09 | 唐山市会恩科技有限公司 | Rotatory atomising head of membrane type in advance |
| CN112974012A (en) * | 2021-04-08 | 2021-06-18 | 西安交通大学 | Gas-phase auxiliary atomizing nozzle with built-in magnetizing structure and atomizing method |
| CN114146522A (en) * | 2021-11-30 | 2022-03-08 | 华能吉林发电有限公司长春热电厂 | Venturi wet dust removal device |
| WO2023207292A1 (en) * | 2022-04-29 | 2023-11-02 | 海南摩尔兄弟科技有限公司 | Electronic atomization device and liquid storage atomization assembly thereof |
| CN114871005A (en) * | 2022-06-02 | 2022-08-09 | 重庆大学 | Icing wind tunnel nozzle based on different distribution forms for feedback adjustment |
| CN114871005B (en) * | 2022-06-02 | 2023-01-17 | 重庆大学 | Icing wind tunnel nozzle based on different distribution forms for feedback adjustment |
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