CN107398365B - A kind of spray head of watering cart - Google Patents
A kind of spray head of watering cart Download PDFInfo
- Publication number
- CN107398365B CN107398365B CN201710655461.6A CN201710655461A CN107398365B CN 107398365 B CN107398365 B CN 107398365B CN 201710655461 A CN201710655461 A CN 201710655461A CN 107398365 B CN107398365 B CN 107398365B
- Authority
- CN
- China
- Prior art keywords
- pipeline
- grade
- spray head
- kth
- spray
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
- B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
- B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
Landscapes
- Nozzles (AREA)
Abstract
The invention discloses a kind of spray head of watering cart, including the nozzle boss with inlet and outlet, the porous cloth Water Network in space and direct current impacting type exhalant canal are provided in the seat of meeting and discussing, the porous cloth Water Network in space includes water inlet, reservoir, tedge, step divide shape pipeline and water outlet, and the tedge is connected to the reservoir and refers between pipeline；The step divides shape pipeline to be fractal structure, including at least two-stage, and any level-one step pipeline circumferentially array distribution and is directed toward the same center of circle.Spray head spray droplet density of the present invention is big, and movement velocity is big, high to the capturing efficiency of dust, it is easier to which evaporation is to cool down, to achieve the purpose that sprinkling truck fast cooling, high-effective dust-removing.
Description
Technical field
The present invention relates to a kind of spray head of watering cart, and in particular to be that there is the direct current of the porous water distribution network structure in space to hit
Hit formula spray head of watering cart.
Background technique
The effect on sprinkling truck is road pavement cooling dedusting, and what spray head of watering cart was to ensure that sprinkling truck effectively works important matches
Part.Currently, spray head of watering cart watering device is not high to the utilization rate of water, water consumption is big, and sprinkling liquid droplet diameter is big, so that removing
Dirt is ineffective, influences vehicular traffic and the normal trip of pedestrian.
Summary of the invention
The technical problem to be solved by the present invention is in view of the above shortcomings of the prior art, and provide a kind of novel tool
There is the direct current impacting type spray head of watering cart of the porous water distribution network structure in space, which effectively increases spray head of watering cart
Dust removal efficiency and spray droplet evaporation rate, to achieve the purpose that clean road surface and fast cooling.
To solve technical problem present on spray head of watering cart design, the technical solution adopted by the present invention is that:
A kind of spray head of watering cart, including the nozzle boss with inlet and outlet, it is characterised in that: in the nozzle boss
It is inside provided with the porous cloth Water Network in space and direct current impacting type exhalant canal, the porous cloth Water Network in space includes water inlet,
Reservoir, tedge, step divide shape pipeline and water outlet, the tedge be connected to the reservoir and step point shape pipeline it
Between；The step divides shape pipeline to be fractal structure, including at least two-stage, and circumferentially array distribution is simultaneously for any level-one step pipeline
It is directed toward the same center of circle；Kth grade step pipeline fractal generation 2k+1+ 1 grade of step pipeline of m kth, wherein 0≤k < K, 2≤K < 10, K
For integer；+ 1 grade of step pipeline of adjacent kth angle at the branch point is ω, 60 ° of ω≤180 ° <, two neighboring institute
+ 1 grade of step pipeline extension line of kth is stated in the angle of the center pointM is the number of 0 grade of step pipeline；It is described straight
The entrance of stream impacting type exhalant canal connects the outlet of final stage step pipeline on the step point shape pipeline, the direct current impacting type
It is directed toward a rum point jointly in the outlet of exhalant canal；The lenth ratio of+1 grade of step pipeline of the kth grade step pipeline and kth isD is that the fractal dimension of the step duct length, 1 < D < 3, and D are real number；The kth grade step pipeline and kth+1
Grade step pipeline diameter ratio beΔ is that the diameter fractal dimension of the step pipeline, 2.3≤Δ < 3, and Δ are real
Number, N is number of branches.
For the nozzle boss in layering annulus column, the step divides the configuration of shape pipeline in the porous cloth Water Network in the space
Upper layer, the reservoir configure the lower layer of the porous cloth Water Network in the space.
The number of the tedge is 4n, 1≤n < 5；The number of the 0th grade of step pipeline is m, m=4n.
Number of branches N=2 of the step pipeline described in every level-one in next stage.
The direct current impacting type exhalant canal includes spray road, and at round table-like, coning angle is for spray road encirclement
The process that step divides shape pipeline to generate are as follows: 1. the 0th grade of step pipeline is connected with the tedge, circumferentially array
It is distributed and is directed toward the same center of circle.Angle of the two neighboring 0th grade of step pipeline extension line in the center pointDescribed 0th grade
2m the 1st grade of step pipelines of step pipeline fractal generation.1st grade of step pipeline circumferentially array distribution and is directed toward the center of circle.
Adjacent 1st grade of step pipeline angle at branch point is ω, 60 ° of ω≤180 ° <, two neighboring 1st grade of step pipeline extension line
In the angle of the center point2. kth grade step pipeline fractal generation 2k+1+ 1 grade of step pipeline of m kth, wherein 0≤k
< K.+ 1 grade of step pipeline of kth circumferentially array distribution and is directed toward the center of circle.+ 1 grade of step pipeline of the adjacent kth is in branch point
Locating angle is ω, 60 ° of ω≤180 ° <, angle of+1 grade of step pipeline extension line of two neighboring kth in the center point
The porous cloth Water Network in space includes water inlet, reservoir, tedge, and step divides shape pipeline and water outlet.Stream
Body enters the reservoir from the water inlet, flows into the step via the tedge and divides shape pipeline.Fluid is on described
There is equal hydraulic resistance at riser, so the fluid is evenly distributed when flowing into the step point shape pipeline, effectively prevents
Choking phenomenon.The fluid can generate centrifugal force when the branch point turns to, the size of centrifugal force and speed square at
Direct ratio, and speed of the fluid described in the step pipeline at center is big compared near wall region flow velocity, therefore the centrifugal force at center
Greater than the centrifugal force of near wall region, makes the fluid rotary since the difference of this centrifugal force produces torque, make the step pipe
Fluid flow state variation is fierce at the closely described branch point in road downstream, at the nearly branch point of the step pipe downstream on the inside of generate
There is biggish Disengagement zone in reflux, and apparent secondary flow phenomenon occurs.Secondary Flow results in cross section side in the step pipeline
Upward kinetic energy and energy exchange, had not only reduced the stagnation pressure in flow field, but also changed the average speed of main flow direction.It is vortexed simultaneously
It generates, reduces the fluid discharge section area, flow velocity increases.And with the increase of hierarchical level, the step tubular dimensions
Reduction will lead to the unit length pressure drop of fluid described in specific discharge and increase therewith, so as to cause the fluid flow rate into one
Step increases, so that in the porous water distribution network exit in the space, fluid is divided into 2K-1The m bursts of high-speed jets uniformly gathered.
The direct current impacting type exhalant canal includes spray orifice, sprays road and rum point.2K-1The m spray roads surround one
Rotary table, coning angle are 2 come out from the porous water distribution network egress in the spaceK-1M bursts of high rapid fires
Stream after rum point shock, forms height at jet axis intersection and stagnation by rum point described in spray road directive
Pressure area, and occur the percussion wave of high amplitude near impingement region.Percussion wave makes spray fan generate sinusoidal pulsation, hits generation
Pressure forces shock fan to horizontal spreading and then forms liquid film.Thick middle, the astonished thin form in edge is presented in liquid film, and on surface
Liquid band or brin are broken under the action of power and perturbed force, hereafter liquid band and brin are broken into spray droplet.The rate of jet stream compared with
Greatly, the liquid film length of formation and liquid droplet diameter are smaller, and spray droplet is distributed averagely in entire spray length, spraying
Droplet density is big, and movement velocity is big, high to the capturing efficiency of dust, it is easier to which evaporation is to cool down.
The utility model has the advantages that
A kind of direct current impacting type spray head of watering cart with the porous water distribution network structure in space of the present invention, the watering
Vehicle spray head is utilized the porous water distribution network structure in space and shunts, and space is taken full advantage of, so that in a limited space to greatest extent
Ground is by divided fluid stream at uniformly densely covered small jet stream.Meanwhile fluid occur at the branch point of the porous cloth Water Network in space it is bright
Aobvious secondary flow phenomenon.The generation of vortex reduces fluid discharge section area, and flow velocity increases.And with the increase of hierarchical level,
The unit length pressure drop that the reduction of step tubular dimensions will lead to specific discharge fluid increases therewith, so as to cause fluid flow rate
It further increases.Uniformly densely covered high-speed jet is hit in the rum point of direct current impacting type exhalant canal, after hitting stagnation, is penetrated
Stream is the spray droplet of diameter very little by liquid film fragmentation, and spray droplet is distributed average, spray liquid in entire spray length
Drop density is big, and movement velocity is big, high to the capturing efficiency of dust, it is easier to which evaporation is to cool down, so that it is quick to have reached sprinkling truck
Cool down, the purpose of high-effective dust-removing.
Detailed description of the invention
The step of Fig. 1 K=2 divides shape pipeline to generate schematic diagram, wherein the 0th grade of step piping schematic of Fig. 1 (a)；Fig. 1
(b) the step piping schematic of K=1；The step piping schematic of Fig. 1 (c) K=2；
Fig. 2 direct current impacting type exhalant canal schematic diagram；
Fig. 3 spray head of watering cart solid half-section diagram.
In figure, 1. the 0th grades of step pipelines；2. adjacent 0th grade of step pipeline extension line is in the angle in the center of circle；3. the 1st grade of ladder
Grade pipeline；4. branch point；5. adjacent 1st grade of step pipeline is in the angle of branch point；6. adjacent 1st grade of step pipeline is in the center of circle
Angle；7. the 2nd grade of step pipeline；8. adjacent 2nd grade of step pipeline is in the angle of branch point；9. adjacent 2nd grade of step pipeline exists
The angle in the center of circle；10. water inlet；11. reservoir；12. tedge；13. water outlet；14. spray orifice；15. rum point；16. spraying road；
17. coning angle.
Specific embodiment
It is further described in detail with reference to the accompanying drawing:
The step point shape pipeline that Fig. 1 (a)~(c) gives K=2 generates schematic diagram.0th grade of step pipeline 1 circumferentially battle array
Column distribution is simultaneously directed toward the same center of circle.Two neighboring 0th grade of step pipeline extension line be in the angle 2 of the center point0th grade
The 1st grade of step pipeline 3 of 1 fractal generation of step pipeline.1st grade of step pipeline 3 circumferentially array distribution and is directed toward the center of circle.Adjacent
1 grade of step pipeline angle 5 at branch point is ω, and 60 ° of ω≤180 ° <, two neighboring 1st grade of step pipeline extension line is in circle
Angle 6 at the heart isThe 2nd grade of step pipeline 7 of 1st grade of 3 fractal generation of step pipeline.2nd grade of step pipeline 7 is circumferentially
Array distribution is simultaneously directed toward the center of circle.Adjacent 2nd grade of step pipeline at branch point angle 8 be ω, 60 ° of ω≤180 ° <, adjacent two
A 2nd grade of step pipeline extension line be in the angle 9 of the center point
Fig. 2 gives direct current impacting type exhalant canal schematic diagram.Direct current impacting type exhalant canal includes spray orifice 14, sprays road 16
With rum point 15.Spray road 16 surrounds a rotary table, and coning angle 17 is The high speed entered from spray orifice 14
Jet stream after the shock of rum point 15, forms high pressure at jet axis intersection and stagnation by spraying 16 directive rum point 15 of road
Area, and occur the percussion wave of high amplitude near impingement region.Percussion wave makes spray fan generate sinusoidal pulsation, hits the pressure of generation
Power forces shock fan to horizontal spreading and then forms liquid film.Thick middle, the astonished thin form in edge is presented in liquid film, and in surface tension
And liquid band or brin are broken under the action of perturbed force, hereafter liquid band and brin are broken into spray droplet.The rate of jet stream is larger,
The liquid film length and liquid droplet diameter of formation are smaller, and spray droplet is distributed average, spray liquid in entire spray length
Drop density is big, and movement velocity is big, high to the capturing efficiency of dust, it is easier to which evaporation is to cool down.
Fig. 3 gives spray head of watering cart solid half-section diagram.A kind of spray head of watering cart, including the porous cloth Water Network in space
With direct current impacting type exhalant canal, the porous cloth Water Network in space includes water inlet 10, reservoir 11, tedge 12, step pipeline
With water outlet 13；Direct current impacting type exhalant canal includes spray orifice 14, sprays road 16 and rum point 15.The porous cloth Water Network in space is in point
Layer annulus column, step pipeline are configured in the upper layer of the porous cloth Water Network in space, the porous cloth Water Network of 11 configuration space of reservoir
Lower layer, tedge 12 connects reservoir 11 and step pipeline, and step pipeline is porous structure；Direct current impacting type exhalant canal is matched
It sets in the inner ring side of the porous cloth Water Network in space, spray orifice 14 is connected in a manner of being overlapped with water outlet 13.Fluid is from water inlet
10 enter reservoir 11, flow into step pipeline via tedge 12.Fluid has equal hydraulic resistance at tedge 12, so
Fluid is evenly distributed when flowing into step pipeline, effectively prevents choking phenomenon.Fluid flows into step pipeline, sends out at branch point 4
Raw apparent secondary flow phenomenon.The generation of vortex reduces fluid discharge section area, and flow velocity increases.And with hierarchical level
Increase, the unit length pressure drop that the reduction of step tubular dimensions will lead to specific discharge fluid increases therewith, so as to cause fluid
Flow velocity further increases.Uniformly densely covered high-speed jet then enters spray 16 directive rum point 15 of road from spray orifice 14, is hitting
Point 15 is hit, and after hitting stagnation, jet stream is the spray droplet of diameter very little by liquid film fragmentation, and spray droplet is in entire spray
It is distributed averagely in length, spray droplet density is big, and movement velocity is big, high to the capturing efficiency of dust, it is easier to it evaporates to cool down,
To achieve the purpose that sprinkling truck fast cooling, high-effective dust-removing.
Claims (5)
1. a kind of spray head of watering cart, including the nozzle boss with inlet and outlet, it is characterised in that: in the nozzle boss
It is provided with the porous cloth Water Network in space and direct current impacting type exhalant canal, the porous cloth Water Network in space includes water inlet, is stored
Pond, tedge, step divide shape pipeline and water outlet, the tedge be connected to the reservoir and step point shape pipeline it
Between；The step divides shape pipeline to be fractal structure, including at least two-stage, and circumferentially array distribution is simultaneously for any level-one step pipeline
It is directed toward the same center of circle；Kth grade step pipeline fractal generation 2k+1+ 1 grade of step pipeline of m kth, wherein 0≤k < K, 2≤K < 10, K
For integer；+ 1 grade of step pipeline angle at branch point of the adjacent kth is ω, 60 ° of ω≤180 ° <, two neighboring described
Angle of the k+1 grades of step pipeline extension lines in the center pointM is the number of the 0th grade of step pipeline；It is described straight
The entrance of stream impacting type exhalant canal connects the outlet of final stage step pipeline on the step point shape pipeline, the direct current impacting type
It is directed toward a rum point jointly in the outlet of exhalant canal；The lenth ratio of+1 grade of step pipeline of the kth grade step pipeline and kth isD is that the fractal dimension of the step duct length, 1 < D < 3, and D are real number；The kth grade step pipeline and kth+1
Grade step pipeline diameter ratio beΔ is that the diameter fractal dimension of the step pipeline, 2.3≤Δ < 3, and Δ are real
Number, N is number of branches.
2. spray head of watering cart according to claim 1, it is characterised in that: the nozzle boss is described in layering annulus column
Step divides the configuration of shape pipeline on the upper layer of the porous cloth Water Network in the space, and the reservoir configures the porous cloth network of rivers in space
The lower layer of network.
3. spray head of watering cart according to claim 1, it is characterised in that: the number of the tedge is 4n, 1≤n < 5；
The number of the 0th grade of step pipeline is m, m=4n.
4. spray head of watering cart according to claim 1, it is characterised in that: point of the step pipeline described in every level-one in next stage
Branch number N=2.
5. spray head of watering cart according to claim 1, it is characterised in that: the direct current impacting type exhalant canal includes spray
Road, the spray road are surrounded at round table-like, and coning angle is
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710655461.6A CN107398365B (en) | 2017-08-02 | 2017-08-02 | A kind of spray head of watering cart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710655461.6A CN107398365B (en) | 2017-08-02 | 2017-08-02 | A kind of spray head of watering cart |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107398365A CN107398365A (en) | 2017-11-28 |
| CN107398365B true CN107398365B (en) | 2019-03-12 |
Family
ID=60402766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710655461.6A Active CN107398365B (en) | 2017-08-02 | 2017-08-02 | A kind of spray head of watering cart |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107398365B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111974013B (en) * | 2020-07-23 | 2022-12-27 | 黑龙江立高科技股份有限公司 | Porous atomizing head for pressure spray dryer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1435266A1 (en) * | 2002-12-31 | 2004-07-07 | Raute Oyj | Nozzles unit |
| CN101116798A (en) * | 2007-07-20 | 2008-02-06 | 华东理工大学 | Fluid mixer and the fluid mixing method thereof |
| CN101733056A (en) * | 2008-11-07 | 2010-06-16 | 中国科学院大连化学物理研究所 | Impinging stream micro-channel reactor and application |
| JP2014012239A (en) * | 2012-07-03 | 2014-01-23 | East Japan Railway Co | Multi-nozzle type spray head |
| EP2711088A1 (en) * | 2011-05-16 | 2014-03-26 | Musashi Engineering, Inc. | Film-coating nozzle, coating device and coating method |
| CN205288848U (en) * | 2016-01-13 | 2016-06-08 | 威海世椿自动化设备有限公司 | Multichannel rubber coating device |
-
2017
- 2017-08-02 CN CN201710655461.6A patent/CN107398365B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1435266A1 (en) * | 2002-12-31 | 2004-07-07 | Raute Oyj | Nozzles unit |
| CN101116798A (en) * | 2007-07-20 | 2008-02-06 | 华东理工大学 | Fluid mixer and the fluid mixing method thereof |
| CN101733056A (en) * | 2008-11-07 | 2010-06-16 | 中国科学院大连化学物理研究所 | Impinging stream micro-channel reactor and application |
| EP2711088A1 (en) * | 2011-05-16 | 2014-03-26 | Musashi Engineering, Inc. | Film-coating nozzle, coating device and coating method |
| JP2014012239A (en) * | 2012-07-03 | 2014-01-23 | East Japan Railway Co | Multi-nozzle type spray head |
| CN205288848U (en) * | 2016-01-13 | 2016-06-08 | 威海世椿自动化设备有限公司 | Multichannel rubber coating device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107398365A (en) | 2017-11-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106439204B (en) | Passive type two-phase water hammer alleviates device | |
| CN102161021A (en) | An anti-blocking dustfall nozzle used in coal mine | |
| CN205730852U (en) | A kind of efficient spray device | |
| CN107398365B (en) | A kind of spray head of watering cart | |
| AU2015348985A1 (en) | Irrigation device | |
| RU2610629C1 (en) | Combined cooling tower with rational water recycling system | |
| CN106861957A (en) | A kind of atomization rocker-arm water injector for irrigating fruit tree | |
| CN204158924U (en) | A kind of flow straightener cross section is the water mists fire water monitor head of double-layer circular tube shape | |
| CN212184533U (en) | Modern gardens irrigation equipment of efficient | |
| CN211573519U (en) | Vertical stilling well auxiliary energy dissipation device | |
| CN204767780U (en) | Secondary atomizing oil -water separator | |
| RU2624073C1 (en) | Combined cooling tower with rational water recycling system | |
| CN201335649Y (en) | Multi-layer rotary splashing device | |
| CN207076330U (en) | A kind of spraying device of desulfurizing tower | |
| CN105953605A (en) | Underground nuclear power station cooling vertical shaft | |
| CN206700988U (en) | A kind of New type wet cleaner | |
| CN107059756A (en) | A kind of automatic rotary dispensing device | |
| CN201940122U (en) | Rhombus defogging device with pre-defogger | |
| CN205208777U (en) | Atomizing air conditioner comdenstion water cooling heat exchanger device based on venturi effect | |
| CN206410375U (en) | A kind of efficient industrial condensing unit | |
| CN206963549U (en) | A kind of treegarden irrigation device | |
| CN211217153U (en) | Converter gas dehydrator | |
| CN208870581U (en) | Gas transmission line multiphase flow drainage gas production tool | |
| CN208505056U (en) | Circulating cooling tower is used in the production of PUR hot melt adhesive | |
| CN207913417U (en) | A kind of depositing dust spray system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |