CN206810523U - Cavitating nozzle and cleaning equipment - Google Patents
Cavitating nozzle and cleaning equipment Download PDFInfo
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- CN206810523U CN206810523U CN201720567935.7U CN201720567935U CN206810523U CN 206810523 U CN206810523 U CN 206810523U CN 201720567935 U CN201720567935 U CN 201720567935U CN 206810523 U CN206810523 U CN 206810523U
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- nozzle
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Abstract
The utility model provides a kind of cavitating nozzle and cleaning equipment.Wherein, the cavitating nozzle includes：Front nozzle, front nozzle are provided with fluidic channel, and the first end of front nozzle is jet inlet；Centerbody, centerbody are connected with front nozzle, and centerbody is located in fluidic channel, and centerbody streams section and second including first and streams section, and first to stream section be spherical crown shape, and second to stream section be taper, and first, which streams section and second, streams between section and seamlessly transit；Rear nozzle, the arrival end of rear nozzle are connected with the second end of front nozzle, and the aperture of the flow channel of the port of export of rear nozzle is less than the aperture of fluidic channel, and ladder mutation structure is formed between flow channel and jet.The low technical problem for causing cleaning efficiency low of existing cavitating nozzle cavitation efficiency present in prior art is can solve the problem that using the technical program.
Description
Technical field
The utility model belongs to cleaning frock technical field, is to be related to a kind of cavitating nozzle and clean to set more specifically
It is standby.
Background technology
Cavitation jet is a kind of new water-jet technology, by artificially allowing jet to produce bubble, using bubble in target
The broken blast in face strengthens the active force of water jet.At present, cavitating nozzle is applied gradually popularizes in cleaning industry, but existing
The service efficiency of some cavitating nozzles is general, and the cavitation cleaning performance that it can reach is general, causes cleaning efficiency low.In order to
Cleaning efficiency can be improved and lift cleaning performance, it is necessary to be imitated by increasing equipment to carry out high-pressure water jet to improve cavitation
Fruit, this adds increased the application cost of cavitating nozzle, so as to limit application development of the cavitation jet technology in cleaning industry.
Utility model content
The purpose of this utility model is to provide a kind of cavitating nozzle and cleaning equipment, to solve present in prior art
The low technical problem for causing cleaning efficiency low of existing cavitating nozzle cavitation efficiency.
To achieve the above object, the technical solution adopted in the utility model is：A kind of cavitating nozzle is provided, including：Preceding spray
Mouth, front nozzle are provided with fluidic channel, and the first end of front nozzle is jet inlet；Centerbody, centerbody are connected with front nozzle, and
Centerbody is located in fluidic channel, and centerbody streams section and second including first and streams section, and first to stream section be spherical crown shape, and second
It is taper to stream section, and first, which streams section and second, streams between section and seamlessly transit；Rear nozzle, the arrival end and front nozzle of rear nozzle
The second end be connected, the aperture of the flow channel of the port of export of rear nozzle is less than the aperture of fluidic channel, and flow channel with
Ladder mutation structure is formed between jet.
Further, the central axis of centerbody and the central axis of fluidic channel coincide.
Further, flow channel includes the first flow channel, second flow path and the 3rd flow channel, the first flowing
Reduced successively between passage, second flow path and the 3rd flow channel, and between the first flow channel and second flow path
The first cascaded surface is formed, the second cascaded surface is formed between second flow path and the 3rd flow channel, the 3rd circulation passage leads to
Road outlet is jet.
Further, the aperture of fluidic channel is D1, and the aperture of the first flow channel is D2, D1 >=D2.
Further, second to stream section away from the distance between the first end for streaming section and the first cascaded surface be L1, then
1.0≤L1/D2≤1.5。
Further, the length of flow channel is L2, then 0.6≤D2/L2≤0.8.
Further, the aperture of the 3rd flow channel is D3, then 6≤D2/D3≤8.
Further, multiple be spaced apart is provided with the hole wall of the hole wall of the first circulation passage and the second circulation passage
Annular protrusion.
Further, it is connected through a screw thread, and is provided between front nozzle and rear nozzle close between front nozzle and rear nozzle
Seal washer.
According to the another aspect of the technical program, there is provided a kind of cleaning equipment, including cleaning pump and it is connected to cleaning pump
Delivery pipe on injection nozzle, the injection nozzle is foregoing cavitating nozzle.
The first of the centerbody of the cavitating nozzle streams that section is spherical crown shape, second to stream section be taper, such streamlined
The centerbody of design can be such that current are greatly reduced by the resistance of centerbody, and form whirlpool in the wake zone of fluidic channel
Rotation, and ladder mutation structure of the circulation passage of rear nozzle at its jet is collectively forming vibration chamber with fluidic channel, leads to
Cross vibration chamber to be amplified the wake flow vortex low-pressure area of centerbody, aggravate the cavitation phenomenon of current, produce more powerful cavitation
Jet, so as to realize the purpose of high-efficiency washing, improve cleaning efficiency.
Brief description of the drawings
, below will be to embodiment or prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The required accompanying drawing used is briefly described in description, it should be apparent that, drawings in the following description are only that this practicality is new
Some embodiments of type, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the first cross section structure diagram of the cavitating nozzle of the utility model embodiment；
Fig. 2 is the second cross section structure diagram of the cavitating nozzle of the utility model embodiment；
Fig. 3 is the dimensional structure diagram of the cavitating nozzle of the utility model embodiment.
Wherein, each reference in figure：
10th, front nozzle；11st, fluidic channel；
12nd, jet inlet；20th, centerbody；
21st, first streams section；22nd, second streams section；
23rd, connecting plate；30th, rear nozzle；
31st, flow channel；311st, the first flow channel；
312nd, second flow path；313rd, the 3rd flow channel；
32nd, the first cascaded surface；33rd, the second cascaded surface；
40th, seal washer.
Embodiment
In order that technical problem to be solved in the utility model, technical scheme and beneficial effect are more clearly understood, with
Lower combination drawings and Examples, the utility model is further elaborated.It is it should be appreciated that described herein specific real
Example is applied only to explain the utility model, is not used to limit the utility model.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, it can be directly another
On one element or it is connected on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", " on ", " under ", "front", "rear", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " top ", " bottom ", " interior ", " outer " are to be closed based on orientation shown in the drawings or position
System, it is for only for ease of and describes the utility model and simplified description, rather than the device or element of instruction or hint meaning is necessary
With specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In description of the present utility model, " multiple " are meant that two or two
More than, unless otherwise specifically defined.
As shown in figures 1 and 3, the cavitating nozzle of the present embodiment includes front nozzle 10, centerbody 20 and rear nozzle 30, preceding spray
Mouth 10 is provided with fluidic channel 11, and the first end of front nozzle 10 is jet inlet 12, and centerbody 20 is connected with front nozzle 10, and in
Heart body 20 is located in fluidic channel 11, and centerbody 20 streams section 21 and second including first and streams section 22, and first, which streams section 21, is
Spherical crown shape, second to stream section 22 be taper, and first, which streams section 21 and second, streams between section 22 and seamlessly transit, and rear nozzle 30 enters
Mouth end is connected with the second end of front nozzle 10, and the aperture of the flow channel 31 of the port of export of rear nozzle 30 is less than fluidic channel 11
Aperture, and between flow channel 31 and jet formed ladder mutation structure.
Cleaning is carried out using the cavitating nozzle of the technical program, current enter from the jet inlet 12 of front nozzle 10,
Then centerbody 20 is passed through so that the flow velocity and pressure of current produce change, and to stream section 21 be ball due to the first of centerbody 20
It is coronal, second to stream section 22 be taper, it is preferable that second streams section 22 using the conical like form design relatively easily processed simultaneously
Manufacture, the centerbody 20 of such airflow design can be such that current are greatly reduced by the resistance of centerbody 20, and penetrate
The wake zone of circulation road 11, which is formed, to be vortexed, and ladder mutation structure of the circulation passage 31 of rear nozzle 30 at its jet with
Fluidic channel 11 is collectively forming vibration chamber, and the wake flow vortex low-pressure area of centerbody 20 is amplified by vibrating chamber, aggravates water
The cavitation phenomenon of stream, more powerful cavitation jet is produced, so as to realize the purpose of high-efficiency washing, improve cleaning efficiency, while
The cost of cavitating nozzle in use is reduced, advantageously in the popularization of cavitation jet technology.
In the cavitating nozzle of the present embodiment, connecting plate 23 that centerbody 20 is distributed by four uniform intervals, which is connected to, to be penetrated
On the hole wall of circulation road 11, also, the central axis of centerbody 20 and the central axis of fluidic channel 11 coincide.In order to
Resistance of the connecting plate 23 to the current of process is maximumlly reduced, therefore, on the basis of intensity needed for connecting plate 23 is ensured, to the greatest extent
The size of connecting plate 23 may be reduced, and each connecting plate 23 is fabricated to the shape of streamline shuttle-type along water (flow) direction, so as to
Reduce the resistance to incoming.
As shown in figure 1, specifically, the flow channel 31 of the cavitating nozzle includes the flowing of the first flow channel 311, second and led to
The flow channel 313 of road 312 and the 3rd, between the first flow channel 311, the flow channel 313 of second flow path 312 and the 3rd according to
Secondary diminution, it is preferable that the first flow channel 311, the flow channel 313 of second flow path 312 and the 3rd are cylindrical channel,
And first forms the first cascaded surface 32, second flow path 312 and the 3rd between flow channel 311 and second flow path 312
The second cascaded surface 33 is formed between flow channel 313, the channel outlet of the 3rd circulation passage 313 is jet, that is to say, that the
One cascaded surface 32, the second cascaded surface 33 form the ladder mutation structure that jet goes out.So, in current by centerbody 20
Rear end will produce wake flow and multiple vortex low-pressure areas, then due to contraction end face (the i.e. He of the first cascaded surface 32 of rear nozzle 30
Second cascaded surface 33 composition ladder mutation structure) pressure wave feedback and vibration, produce acoustic resonance move, amplify low-pressure area,
Further promote jet enterprise planning to produce bubble, turn into the cavitation jet of colleges and universities, then again penetrate the current after cavitation from jet
Go out, crumbled and fall using vacuole in surface to be cleaned and produce instantaneous partial high pressure high temperature, reach the purpose to surface high-efficiency washing.
Set as shown in Fig. 2 the technical program optimizes to the fit structure formed between front nozzle 10 and rear nozzle 30
Meter, when the aperture of fluidic channel 11 is D1, the aperture of the first flow channel 311 is D2, D1 >=D2, D1=D2 in the present embodiment.
Also, second to stream section 22 away from the distance between the first end for streaming section 21 and the first cascaded surface 32 be L1, then 1.0≤
L1/D2≤1.5, be so advantageous to the formation i.e. wake zone of wake flow, beneficial to the formation of low-pressure area.Further, flow channel 31
Length be L2, then 0.6≤D2/L2≤0.8, the aperture of the 3rd flow channel 313 is D3, then 6≤D2/D3≤8, such ginseng
Table structure coordinates, and the cavitation effect of current can be made more preferable, in the present embodiment, D2/D3=7.5, D2/L2=0.7.
In the cavitating nozzle of the present embodiment, do not influence to vibrate the chamber acoustic resonance that forms current move while, first
Multiple annular protrusions being spaced apart are provided with the hole wall of the hole wall of circulation passage 311 and the second circulation passage 312, specifically
Ground, annular protrusion are the fine thread or serrulate on the hole wall of the first flow channel 311 and the hole wall of second flow path 312
The height of line, fine thread or serrulate line is 1mm to 1.5mm, so that the hole wall of the first flow channel 311 and the second flowing are logical
The hole wall increase roughness in road 312, there is provided the generation that the hole wall surface of fine thread or serrulate line is advantageous to small whirlpool, enters
One step promotes the generation of low-pressure area, promotes the formation of bubble.
In addition, in the cavitating nozzle of the present embodiment, the diameter of centerbody 20 is 1/3 with the ratio of its length, and center
Body 20, connecting plate 23 and front nozzle 10 are process for integral type, and rugged construction is stable.
Be connected through a screw thread between front nozzle 10 and rear nozzle 30, in order to further improve front nozzle 10 and rear nozzle 30 it
Between sealing, thus seal washer 40 is provided between front nozzle 10 and rear nozzle 30.Pass through seal washer 40 and screw thread
The dual-seal design of connection, it is ensured that the cavitating nozzle can normally drip carries out the skies such as speed change, transformation, vortex, vibration to current
Change process.
Cavitation jet is a kind of new and effective jet flow cleaning mode, and it utilizes shattered to pieces moment production of the vacuole on cleaning surface
140~170MPa high pressures of the small scope of raw part and 1900K high temperature reach the purpose of cleaning, compared to traditional water under high pressure
Jet, enough cleaning hitting powers can be reached by providing high-pressure water without super-pressure pump equipment, have energy saving economy, efficiently peace
Full advantage.
In addition, major advantage of the present utility model is as follows：
1st, the cavitating nozzle designed by the utility model, the increase structure of centerbody 20 is caused around flow pattern cavitation, and is used
The design of rear nozzle 20 carries out cavitation (i.e. using the oscillation mode cavitation of organ tubular construction), is directly applied to cavitating nozzle underwater clear
Wash, form submerged jets, can also meet the occurrence condition of shearing-type cavitation, cavitation bubble is more also easy to produce, the hitting power of jet
Namely it can be strengthened.
2nd, the cavitating nozzle designed by the utility model is made up of front nozzle 10, centerbody 20 and rear nozzle 30, streamlined
Centerbody 20, because cavitation jet originally avoids the need for ultra-high pressure water fluid jet, therefore front nozzle 10 and rear nozzle 30 lead between the two
Cross threaded connection and meet the firm requirement of sealing enough with O-ring seal (i.e. seal washer 40) sealing, and can bear most
High 60MPa hydraulic pressure.According to the structure of the distance between the result, two nozzles of experiment and emulation, i.e. centerbody 20 and rear nozzle 30
Distance controlling effect preferably (control 1.0≤L1/D2≤1.5) at 1 times~1.5 times of chamber footpaths, now caused by centerbody 20
Wake flow vortex core low-pressure area can swing effect amplification because of the acoustic resonance of rear nozzle 30, aggravate the generation of cavitation phenomenon.
3rd, in the front nozzle 10 designed by the utility model, centerbody 20 is that theoretical effect is best, minimum to resistance to water-flow
Streamlined structure, it is so also higher for the smaller relative efficiency of current pressure drop.Front nozzle 10 and centerbody 20 are integral types,
Rather than conventional center body nozzle is absolutely motionless with respect to the hole wall of front nozzle 10 using the structure of assembling, centerbody 20, so
It is more stable.
4th, the rear nozzle 30 designed by the utility model, using the organ tube nozzle of optimization, no longer it is at nozzle inner walls
Flat surface, but process fine thread or serration, do not influence acoustic resonance it is dynamic while, moreover it is possible to one is formed in sawtooth
Individual small whirlpool, is further exacerbated by the generation of vacuole.
5th, the cavitating nozzle designed by the utility model, it is simple in construction, other equipment is easily assembled to and carried, is convenient for
Underwater cleaning.
According to the another aspect of the technical program, there is provided a kind of cleaning equipment.The cleaning equipment includes cleaning pump and company
The injection nozzle being connected in the delivery pipe of cleaning pump, the injection nozzle are foregoing cavitating nozzle.Treated using the cleaning equipment
It is that surface carries out cleaning, can be quickly and efficiently cleaned, reach efficient, preferable cleaning performance.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
- A kind of 1. cavitating nozzle, it is characterised in that including：Front nozzle (10), the front nozzle (10) are provided with fluidic channel (11), and the first end of the front nozzle (10) is jet Entrance (12)；Centerbody (20), the centerbody (20) are connected with the front nozzle (10), and the centerbody (20) is penetrated positioned at described In circulation road (11), the centerbody (20) streams section (21) and second including first and streams section (22), and described first streams section (21) it is spherical crown shape, described second to stream section (22) be taper, and described first, which streams section (21) and described second, streams section (22) Between seamlessly transit；Rear nozzle (30), the arrival end of the rear nozzle (30) are connected with the second end of the front nozzle (10), are sprayed after described The aperture of the flow channel (31) of the port of export of mouth (30) is less than the aperture of the fluidic channel (11), and the flow channel (31) ladder mutation structure is formed between jet.
- 2. cavitating nozzle as claimed in claim 1, it is characterised in that the central axis of the centerbody (20) and the jet The central axis of passage (11) coincides.
- 3. cavitating nozzle as claimed in claim 1, it is characterised in that the flow channel (31) includes the first flow channel (311), second flow path (312) and the 3rd flow channel (313), first flow channel (311), second flowing Reduced successively between passage (312) and the 3rd flow channel (313), and first flow channel (311) and described the The first cascaded surface (32), the second flow path (312) and the 3rd flow channel are formed between two flow channels (312) (313) the second cascaded surface (33) is formed between, the channel outlet of the 3rd circulation passage (313) is jet.
- 4. cavitating nozzle as claimed in claim 3, it is characterised in that the aperture of the fluidic channel (11) is D1, described The aperture of one flow channel (311) is D2, D1 >=D2.
- 5. cavitating nozzle as claimed in claim 4, it is characterised in that described second streams section (22) streams away from described first The distance between the end of section (21) and first cascaded surface (32) are L1, then 1.0≤L1/D2≤1.5.
- 6. cavitating nozzle as claimed in claim 4, it is characterised in that the length of the flow channel (31) is L2, then 0.6≤ D2/L2≤0.8。
- 7. cavitating nozzle as claimed in claim 4, it is characterised in that the aperture of the 3rd flow channel (313) is D3, then 6≤D2/D3≤8。
- 8. the cavitating nozzle as any one of claim 3 to 7, it is characterised in that first circulation passage (311) Multiple annular protrusions being spaced apart are provided with the hole wall of hole wall and second circulation passage (312).
- 9. cavitating nozzle as claimed in claim 1, it is characterised in that between the front nozzle (10) and the rear nozzle (30) It is connected through a screw thread, and seal washer (40) is provided between the front nozzle (10) and the rear nozzle (30).
- 10. a kind of cleaning equipment, including cleaning pump and the injection nozzle that is connected in the delivery pipe of the cleaning pump, its feature exist In the injection nozzle is the cavitating nozzle any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720567935.7U CN206810523U (en) | 2017-05-19 | 2017-05-19 | Cavitating nozzle and cleaning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720567935.7U CN206810523U (en) | 2017-05-19 | 2017-05-19 | Cavitating nozzle and cleaning equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206810523U true CN206810523U (en) | 2017-12-29 |
Family
ID=60756984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720567935.7U Active CN206810523U (en) | 2017-05-19 | 2017-05-19 | Cavitating nozzle and cleaning equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206810523U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108043602A (en) * | 2018-01-30 | 2018-05-18 | 广州大学 | A kind of adaptive turbulent flow nozzle |
| CN108296040A (en) * | 2018-03-06 | 2018-07-20 | 中国人民解放军陆军装甲兵学院 | A kind of Hydrodynamic cavitation nozzle of artificial submerged |
| CN109201360A (en) * | 2018-11-09 | 2019-01-15 | 北京科技大学 | A kind of double rank high-pressure water jet self-vibration spray nozzle devices |
| CN109259700A (en) * | 2018-10-10 | 2019-01-25 | 珠海格力电器股份有限公司 | Nozzle, spraying arm for dish-washing machine and dish-washing machine |
| CN111977773A (en) * | 2019-05-22 | 2020-11-24 | 刘进国 | Cavitation crusher and using method thereof |
| CN111974237A (en) * | 2020-08-10 | 2020-11-24 | 大连海事大学 | Cavitation generator with special-shaped flow channel |
| CN113102130A (en) * | 2021-04-22 | 2021-07-13 | 燕山大学 | Self-rotating pulse rotational flow cleaning nozzle |
-
2017
- 2017-05-19 CN CN201720567935.7U patent/CN206810523U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108043602A (en) * | 2018-01-30 | 2018-05-18 | 广州大学 | A kind of adaptive turbulent flow nozzle |
| CN108296040A (en) * | 2018-03-06 | 2018-07-20 | 中国人民解放军陆军装甲兵学院 | A kind of Hydrodynamic cavitation nozzle of artificial submerged |
| CN108296040B (en) * | 2018-03-06 | 2020-10-13 | 中国人民解放军陆军装甲兵学院 | Artificial submerged hydrodynamic cavitation nozzle |
| CN109259700A (en) * | 2018-10-10 | 2019-01-25 | 珠海格力电器股份有限公司 | Nozzle, spraying arm for dish-washing machine and dish-washing machine |
| CN109259700B (en) * | 2018-10-10 | 2024-04-05 | 珠海格力电器股份有限公司 | Nozzle, spray arm for dish washing machine and dish washing machine |
| CN109201360A (en) * | 2018-11-09 | 2019-01-15 | 北京科技大学 | A kind of double rank high-pressure water jet self-vibration spray nozzle devices |
| CN109201360B (en) * | 2018-11-09 | 2023-10-24 | 北京科技大学 | Double-order high-pressure water jet self-vibration nozzle device |
| CN111977773A (en) * | 2019-05-22 | 2020-11-24 | 刘进国 | Cavitation crusher and using method thereof |
| CN111974237A (en) * | 2020-08-10 | 2020-11-24 | 大连海事大学 | Cavitation generator with special-shaped flow channel |
| CN111974237B (en) * | 2020-08-10 | 2022-01-28 | 大连海事大学 | Cavitation generator with special-shaped flow channel |
| CN113102130A (en) * | 2021-04-22 | 2021-07-13 | 燕山大学 | Self-rotating pulse rotational flow cleaning nozzle |
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| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Jiuhua Inventor after: Geng Yongqing Inventor after: Chen Hao Inventor after: Zhou Wei Inventor before: He Kai Inventor before: Li Jiuhua Inventor before: Fang Haitao Inventor before: Geng Yongqing Inventor before: Chen Hao Inventor before: Zhou Wei |
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| CB03 | Change of inventor or designer information |