CN104815773B - A kind of two phase flow is atomized aeration nozzle - Google Patents
A kind of two phase flow is atomized aeration nozzle Download PDFInfo
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- CN104815773B CN104815773B CN201510174084.5A CN201510174084A CN104815773B CN 104815773 B CN104815773 B CN 104815773B CN 201510174084 A CN201510174084 A CN 201510174084A CN 104815773 B CN104815773 B CN 104815773B
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- Prior art keywords
- nozzle
- mixing
- adjusting set
- mixing nozzle
- phase flow
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Classifications
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- 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
- B05B7/0441—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 with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber
- B05B7/0458—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 with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber the gas and liquid flows being perpendicular just upstream the mixing chamber
-
- 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
- B05B7/1209—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means for each liquid or other fluent material being manual and interdependent
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Abstract
Aeration nozzle is atomized the invention discloses a kind of two phase flow, belong to fluid machinery technical field, two phase flow atomization aeration nozzle involved in the present invention includes nozzle body, adjusting set, lock sleeve and mixing nozzle, the port of export of nozzle body and mixing nozzle uses tapered taper hole shape, and the outlet opening of nozzle body and hybrid agent is concentric；Several air admission holes are offered on mixing nozzle, some adjustment holes are offered in adjusting set, rotary regulating sleeve, shower nozzle air entrainment can be changed by changing the relative position of adjustment hole and air admission hole, because the nozzle of the present invention employs two phase flow aeration structure, can produce more preferably atomised jet effect, simultaneously, the present invention is simple in construction, operates light, easy to manufacture.
Description
Technical field
The present invention relates to a kind of nozzle arrangements, more particularly to a kind of two phase flow atomization aeration spray for impact driven sprinkler
Mouth, belongs to fluid machinery technical field.
Background technology
Impact driven sprinkler is a kind of domestic application most wide sprinkling irrigation sprinkler head, to ensure shower nozzle steady operation and hydraulic performance,
It is generally necessary to provide higher operating pressure, this causes spray irrigation system energy consumption higher.For reduce Rocker arm spray head operating pressure or
Hydraulic performance is improved, related scientific research personnel provide different solutions.
Patent CN201930870U discloses a kind of impact driven sprinkler, and the auxiliary jet of throttling channel is radially provided with using top
The sprinkling irrigation of shower nozzle one's own department or unit near zone is realized, sprinkling irrigation coverage is improved, the structure improves shower nozzle radially by additional structure
Water distribution, but on shower nozzle jet break process without influence, the water distribution influence on shower nozzle low pressure operating mode is less, it is impossible to realize
The low pressure sprinkling irrigation of shower nozzle.
Patent CN202762569U discloses a kind of Rocker arm spray head, accelerates to penetrate using the main burner and auxiliary jet of mesh
Stream is broken, improves the water distribution of shower nozzle, but mesh nozzle can significantly reduce sprinkler pattern range, and journey is improved compared to the uniformity
Degree, range will significantly on sprinkler performance influence, therefore this method actual application prospect is poor.Shower nozzle work when, spray dispersion into
The process of water droplet is due to that the turbulent fluctuation effect of jet makes surrounding air occur momentum-exchange with jet particle, close to fluid column surface
Gas phase obtains certain speed, while power stream surface has partially liq to have the loss of momentum, and slows, progressively disengages main body and penetrate
Stream, is analyzed from stress, and jet main body is by gravity, air drag, and the influence of surface tension etc. makes velocity flow profile in jet flow section
Inequality, continuous fluid is chipping.The nozzle of existing impact driven sprinkler is usually simple negative throat noz(zle), only sprays it by jet
Border volume suck afterwards realizes atomization, and atomizing effect is difficult to control to.
The content of the invention
It is an object of the invention to overcome prior art not enough there is provided a kind of two phase flow atomization aeration nozzle, it can have
Effect ground improves jet dispersion effect of the impact driven sprinkler under low pressure operating mode, improves shower nozzle irrigation uniformity.
In order to reach upper purpose, present invention employs following technical scheme：
A kind of two phase flow is atomized aeration nozzle, it is characterised in that：Two phase flow atomization aeration nozzle include nozzle body,
Adjusting set, lock sleeve and mixing nozzle；The mixing nozzle, which is threadably secured, to be connected on the outside of nozzle body；The adjusting set
It is sleeved on the outside of mixing nozzle；The lock sleeve, which is threadably secured, to be connected on the outside of mixing nozzle, to compress adjusting set, is prevented
Only adjusting set is slided.
Wherein, the nozzle body and mixing nozzle use tapered taper hole shape, and nozzle body and mixing nozzle
Outlet opening is concentric, prevents that jet main body impacts mixing nozzle inwall after eccentric assembling, causes mixing nozzle inner filling water
Stream, it is impossible to form gas-liquid mixed chamber；
Two sealing rings are provided with the inside of the adjusting set, sealing ring seals adjusting set and mixing nozzle built with sealing ring
Between gap；
The mixing nozzle offers several air admission holes close to nozzle body one end side；Offered in the adjusting set
Several regulating the qi flowing in the channels holes, the position in regulating the qi flowing in the channels hole need to ensure air admission hole and regulating the qi flowing in the channels hole UNICOM after assembling；Rotary regulating sleeve, adjusts air admission hole
Air entrainment is can adjust with the relative position in regulating the qi flowing in the channels hole, changes impact driven sprinkler jet atomization effect.
The nozzle body outlet bore dia be d, a diameter of D of outlet opening of mixing nozzle, then；With nozzle
Main body（5）Diameter d increase,Value increases, specifically, as d≤8mm,, when
When,；
The distance between outlet opening of the nozzle body outlet hole and mixing nozzle is L, and；
Air inlet hole number on the mixing nozzle is more than 3, circumferentially uniformly；The aperture of air admission hole is A, in shower nozzle
When operating pressure is relatively low,, when operating pressure is higher, can suitably increase the quantity of air admission hole, air inlet
Hole。
Such as to the less shower nozzle of inlet diameter, such as PY10, PY15 and PY20 shower nozzle, its air admission hole is a diameter of to press following size
Processing, to PY30 and with upper nozzle, its air admission hole is a diameter of to press following dimensioned, and air admission hole diameter dimension is, can also be appropriate
Increase air inlet hole number.
The beneficial effects of the invention are as follows：
Mixing nozzle outlet opening is bigger than nozzle body outlet hole, can prevent the inwall of jet impulse mixing nozzle, cause to mix
Negative pressure cavity can not be produced by closing nozzle interior；The distance between outlet opening by designing nozzle body outlet hole and mixing nozzle L
And the aperture A of air admission hole can ensure that jet can roll up the more air of suction in negative pressure cavity, form the power stream of gas-liquid two-phase mixing.
The nozzle arrangements that the present invention is provided are simple, and easy to manufacture, the aqueous vapor dual-phase jet produced after being mixed through nozzle enters
Environmental pressure is in the infinite space of atmospheric pressure, because water jet itself contains micro-bubble, before and after spraying, bubble is because of pressure
The change of volume occurs for change, and the fragmentation on jet main body produces influence, hence it is evident that improve the atomizing effect of impact driven sprinkler.
Brief description of the drawings
Fig. 1 is the structural representation of impact driven sprinkler of the prior art and nozzle mounted thereto；
Fig. 2 is atomized aeration nozzle arrangements schematic diagram for the two phase flow of the present invention.
Fig. 3 is aeration impact driven sprinkler and the water distribution curve under plain radial shower nozzle low pressure operating mode.
Marked in figure：1- nozzle assemblies, 2- rocking arms, 3- changements, 4- jet pipes, 5- nozzle bodies, 6- adjusting sets, 7-
Lock sleeve, 8- mixing nozzles, 9- sealing rings, 10- air admission holes, 11- adjustment holes.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings：
As shown in Fig. 2 a kind of two phase flow atomization aeration nozzle, including nozzle body 5, adjusting set 6, lock sleeve 7 and mixing
Nozzle 8；The mixing nozzle 8, which is threadably secured, is connected to the outside of nozzle body 5；The adjusting set 6 is sleeved on mixing nozzle 8
Outside；The lock sleeve 7, which is threadably secured, is connected to the outside of mixing nozzle 8, to compress adjusting set 6, prevents adjusting set 6 from sliding
It is dynamic.
Wherein nozzle body 5 and mixing nozzle 8 uses tapered taper hole shape, and nozzle body 5 and mixing nozzle 8 go out
Oral pore is concentric, prevents that jet main body impacts the inwall of mixing nozzle 8 after eccentric assembling, causes the inner filling water of mixing nozzle 8
Stream, it is impossible to form gas-liquid mixed chamber；
The inner side of adjusting set 6 is provided with two sealing rings, and sealing ring seals adjusting set 6 and mixing nozzle 8 built with sealing ring 9
Between gap；
Mixing nozzle 8 offers several air admission holes 10 close to the one end side of nozzle body 5；Opened up in the adjusting set 6
There are several regulating the qi flowing in the channels holes 11, the position in regulating the qi flowing in the channels hole 11 need to ensure air admission hole 10 and the UNICOM of regulating the qi flowing in the channels hole 11 after assembling；Rotary regulating sleeve
6, the adjustable air entrainment of the relative position of regulation air admission hole 10 and regulating the qi flowing in the channels hole 11 changes impact driven sprinkler jet atomization effect.
Specifically it is described below using PY15 shower nozzles as embodiment, the nozzle body 5 of PY15 shower nozzles goes out in the present embodiment
Oral pore is a diameter ofd=6mm, a diameter of D of outlet opening of mixing nozzle 8 can be by following dimensioneds
, by prototype test and verification, the outlet bore dia optimal value of PY15 shower nozzles mixing nozzle 8 takesD=6.3mm.Nozzle body 5 is with mixing
Closing the distance between outlet opening of nozzle 8 isL, and.The outlet of nozzle body 5 and mixing nozzle 8 in the present embodiment
The distance between holeLSize isL=40mm。
Several air admission holes 10 are offered on mixing nozzle 8, circumferentially uniformly, the aperture of air admission hole 10 isA；Adjusting set
Several regulating the qi flowing in the channels holes 11 are provided with 6, the quantity in regulating the qi flowing in the channels hole 11 is consistent with the quantity of air admission hole 10, the aperture in usual regulating the qi flowing in the channels hole 11 with
The aperture of air admission hole 10 takes identical value.
To the less shower nozzle of inlet diameter, such as PY10, PY15 and PY20 shower nozzle, its air admission hole is a diameter of to be added by following size
Work, to PY30 and with upper nozzle, its air inlet bore dia can also suitably increase air inlet hole number.
Specifically, in the present embodiment, 3 a diameter of 3mm air admission hole 10 is provided with PY15 shower nozzles mixing nozzle 8, adjust
Also 3 a diameter of 3mm regulating the qi flowing in the channels hole 11 is provided with section set 6.PY15 shower nozzles in use, if want adjust air admission hole air inlet
Amount, rotatable adjusting set 6 changes the relative position of regulating the qi flowing in the channels hole 11 and air admission hole 10 to adjust air inflow, penetrated so as to change shower nozzle
The air entrainment of stream, and then change the atomizing effect of shower nozzle.
The outlet opening of mixing nozzle 8 can prevent greatly the inwall of jet impulse mixing nozzle 8 than the outlet opening of nozzle body 5, cause
Negative pressure cavity can not be produced inside mixing nozzle 8；In the present embodiment between the outlet opening of the outlet opening of nozzle body 5 and mixing nozzle 8
The aperture A apart from L and air admission hole can ensure that jet can roll up the more air of suction in negative pressure cavity, form the master of gas-liquid two-phase mixing
Jet.
Droplet distribution figure as shown in Figure 3, the experiment shower nozzle of selection is PY15 shower nozzles, and nozzle diameter is 6mm, PY15 sprays
The rated pressure of head is usually 300kPa, and this operating pressure for testing selection is 230 kPa, and the irrigation water distribution map of common shower nozzle is shown in
Accompanying drawing 3, according to the single droplet distribution measured, the combination uniformity maximum for calculating shower nozzle is 63%.
According to same experimental condition, test and install the impact driven sprinkler that two phase flow is atomized aeration nozzle additional, effectively improve
Shower nozzle sprays the precipitation in domain stage casing, therefore the water distribution of shower nozzle also improves, and passes through the water distribution of single spraying head, meter
Calculate the combination uniformity maximum of shower nozzle and reduce nearly 1m for sprinkler pattern range after 67%, but aeration.Result of the test is shown, is led to
Crossing two phase flow atomization aeration nozzle aeration improves jet flow characteristic, can improve the irrigation uniformity under shower nozzle low pressure, but can drop
Low sprinkler pattern range.
Claims (2)
1. a kind of two phase flow is atomized aeration nozzle, it is characterised in that：The two phase flow atomization aeration nozzle includes nozzle body
（5）, adjusting set（6）, lock sleeve（7）And mixing nozzle（8）；The mixing nozzle（8）It is threadably secured and is connected to nozzle master
Body（5）Outside；The adjusting set（6）It is sleeved on mixing nozzle（8）Outside；The lock sleeve（7）It is threadably secured connection
In mixing nozzle（8）Outside, to compress adjusting set（6）, prevent adjusting set（6）Slide；The mixing nozzle（8）Close to nozzle master
Body（5）One end side offers several air admission holes（10）；The adjusting set（6）On offer several regulating the qi flowing in the channels holes（11）, adjust
Stomata（11）Position need to ensure assembling after air admission hole（10）With regulating the qi flowing in the channels hole（11）UNICOM；
The nozzle body（5）With mixing nozzle（8）Use tapered taper hole shape, and nozzle body（5）With mixing nozzle（8）'s
Outlet opening is concentric；
The adjusting set（6）Inner side is provided with two sealing rings, and sealing ring is built with sealing ring（9）Seal adjusting set（6）With it is mixed
Close nozzle（8）Between gap；
The nozzle body（5）The a diameter of d of outlet opening, mixing nozzle（8）The a diameter of D of outlet opening, then；With nozzle
Main body（5）Diameter d increase,Value increases, specifically, as d≤8mm,, when
When,；
The nozzle body（5）Outlet opening and mixing nozzle（8）The distance between outlet opening be L, and；
The mixing nozzle（8）On air admission hole（10）Quantity is more than 3, circumferentially uniformly.
2. a kind of impact driven sprinkler, it is characterised in that the impact driven sprinkler is atomized including two phase flow as claimed in claim 1
Aeration nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510174084.5A CN104815773B (en) | 2015-04-14 | 2015-04-14 | A kind of two phase flow is atomized aeration nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510174084.5A CN104815773B (en) | 2015-04-14 | 2015-04-14 | A kind of two phase flow is atomized aeration nozzle |
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| Publication Number | Publication Date |
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| CN104815773A CN104815773A (en) | 2015-08-05 |
| CN104815773B true CN104815773B (en) | 2017-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510174084.5A Active CN104815773B (en) | 2015-04-14 | 2015-04-14 | A kind of two phase flow is atomized aeration nozzle |
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Families Citing this family (15)
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|---|---|---|---|---|
| CN105562232A (en) * | 2015-12-11 | 2016-05-11 | 中国航空工业集团公司西安飞机设计研究所 | Two nozzles capable of adjusting liquid flow |
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| CN105964436B (en) * | 2016-05-30 | 2018-08-21 | 江苏大学 | A kind of multifunctional low-voltage sprinkling irrigation sprinkler head |
| CN106861960A (en) * | 2016-12-26 | 2017-06-20 | 包光华 | A kind of internal-mixing steam atomization nozzle |
| CN107008123A (en) * | 2017-05-27 | 2017-08-04 | 山西晋明通环保科技有限公司 | It is a kind of to be used to improve the spray nozzle device of plasma gas supply |
| CN108999993A (en) * | 2017-06-06 | 2018-12-14 | 邓鸣镛 | water economizer |
| CN107262302B (en) * | 2017-07-06 | 2019-01-29 | 南京航空航天大学 | A kind of atomizer |
| TWI634952B (en) * | 2017-08-18 | 2018-09-11 | 鴻安國際興業有限公司 | Atmospheric spray gun tip and the spray gun |
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| CN107930883A (en) * | 2018-01-24 | 2018-04-20 | 深圳市山水乐环保科技有限公司 | A kind of micro-nano atomising device of liquid and method |
| CN107999297A (en) * | 2018-01-24 | 2018-05-08 | 深圳市山水乐环保科技有限公司 | Plurality of liquid is pre-mixed micro-nano atomising device and method |
| CN109909086B (en) | 2018-12-25 | 2020-12-18 | 江苏大学 | Gas-liquid two-phase flow atomizing nozzle and design method thereof |
| CN110237951A (en) * | 2019-04-11 | 2019-09-17 | 浙江花园新能源有限公司 | A kind of electrolytic copper foil pot for smelted copper |
| CN112371377A (en) * | 2020-10-27 | 2021-02-19 | 湖北山石智能科技有限公司 | Plant protection unmanned aerial vehicle's hydrojet head |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU530096B2 (en) * | 1978-11-06 | 1983-06-30 | Varian Techtron Pty. Ltd. | Nebulizer |
| CN2125461U (en) * | 1992-06-10 | 1992-12-23 | 王宇 | Adjustable high efficient water saving device |
| CN100395036C (en) * | 2003-01-22 | 2008-06-18 | 孙泰炎 | Double-fluid nozzle |
| CA2577851C (en) * | 2004-08-23 | 2014-08-19 | Spraying Systems Co. | Improved internal mix air atomizing nozzle assembly |
| CN200981035Y (en) * | 2006-11-20 | 2007-11-28 | 艾佩克斯科技(北京)有限公司 | Multistage atomizing swirling liquid nozzle |
| CN101077489A (en) * | 2007-06-18 | 2007-11-28 | 廖迎春 | Energy-saving gas-blowing and dust-blowing device |
| CN201500604U (en) * | 2009-08-18 | 2010-06-09 | 和纶企业股份有限公司 | Two-fluid spray nozzle |
| JP5530974B2 (en) * | 2011-05-18 | 2014-06-25 | ヤマホ工業株式会社 | Spray nozzle dedicated to aeration type |
| CN202212297U (en) * | 2011-08-15 | 2012-05-09 | 上海守望者喷雾智能系统有限公司 | Nozzle of external-mixing spray gun |
| CN102407197A (en) * | 2011-09-02 | 2012-04-11 | 朱恒顺 | Structure of water atomizing nozzle |
| CN102658247A (en) * | 2012-05-19 | 2012-09-12 | 钟国强 | Aeration type showerhead water saver with self-closing air inlet hole |
| CN103769324B (en) * | 2014-01-24 | 2015-08-19 | 山东建筑大学 | Internal-mixing two phase flow nozzle |
| CN204656772U (en) * | 2015-04-14 | 2015-09-23 | 江苏大学 | A kind of two phase flow atomization aeration nozzle |
-
2015
- 2015-04-14 CN CN201510174084.5A patent/CN104815773B/en active Active
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