CN209205570U - A kind of double rank high-pressure water jet self-vibration spray nozzle devices - Google Patents
A kind of double rank high-pressure water jet self-vibration spray nozzle devices Download PDFInfo
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- CN209205570U CN209205570U CN201821842610.6U CN201821842610U CN209205570U CN 209205570 U CN209205570 U CN 209205570U CN 201821842610 U CN201821842610 U CN 201821842610U CN 209205570 U CN209205570 U CN 209205570U
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Abstract
The utility model provides a kind of double rank high-pressure water jet self-vibration spray nozzle devices, belongs to industry cleaning link technical field.The device includes entrance collapsible tube, single order resonant cavity, second order resonant cavity and water outlet spray piece etc., entrance collapsible tube and water outlet spray piece are separately fixed at single order resonant cavity upper end and second order resonant cavity lower end, double rank resonant cavities that entrance collapsible tube and two rank resonant cavities are composed in series, enrich the humorous intrinsic frequency of sound of resonant cavity, the automatic adjusument that Oscillatory mode shape is realized when operating condition changes allows strong self-oscillation in a wide range of interior generation；In addition, outlet spray piece is formed using different materials nesting, jet stability can be greatly improved, extends nozzle service life.Double strong self-vibration effects of rank nozzle are combined with the spray piece of high life, have greatly widened self-vibration flow jet work field and uninterrupted working time.
Description
Technical field
The utility model relates to industry cleaning link technical fields, particularly relate to a kind of double rank high-pressure water jet self-vibration nozzle dresses
It sets.
Background technique
Self-vibration jet stream is due to having the advantages that pulsing jet and cavitation jet, and can produce strong erosion effect, greatly raising is penetrated
It flows working efficiency and receives significant attention, and be successfully applied to oil drilling, deep-sea resources exploitation, drilling platforms and shipping cleaning
Equal fields.
Self-vibration spray nozzle device is the core that self-vibration jet stream generates, and resonant cavity size and export structure directly determine jet stream
Working effect.The premise that self-vibration nozzle generates strong self-oscillation flow jet flow is that the humorous intrinsic frequency of resonant cavity sound falls off with jet stream collar vortex
Frequency is consistent, this cavitation and water hammering is most obvious.But in actual application, jet stream collar vortex shedding frequence is with jet stream
The factors real-time changes such as speed, environment confining pressure, and the humorous intrinsic frequency of resonant cavity sound is single and parameter regulation is difficult, so that the two is very
Hardly possible is mutually matched in real time, thus can not when variable working condition under efficiently generate the strong self-vibration jet stream of oscillation.For this purpose, design is with more
The weight humorous intrinsic frequency of sound, the wide self vibration jetting nozzle transposition of working range are particularly important.
This seminar has obtained 1 relevant national granted patent (ZL2014100030975.9), i.e., a kind of high-pressure water shot
It flowing self-vibration spray nozzle device (hereinafter referred to as " former utility model "), former utility model can generate the strong self-vibration jet stream of oscillation effect,
And higher-order of oscillation effect is detected by line pressure signal.But former utility model resonant cavity is configured to single order mode, and using hard
Matter alloy sprays piece, and that there are fluidic oscillation peak value working ranges is relatively narrow, cannot achieve the automatic adjusument of different operating conditions, the spray piece service life
The problems such as short.The utility model and former utility model have following difference: (one) the utility model uses second order resonant cavity, extends
The frequency range of resonant cavity sound harmonics rate realizes to greatly improve jet stream to the responding range of free-running frequence to different works
Condition it is adaptive.(2) different resonant cavities are connected in series, and increase fluidic oscillation mode, improve oscillation intensity.(3) this is practical
It is novel that innovative design has been carried out to spray chip architecture, the nested polycrystalline diamond on original hard alloy basis, make to spray the piece service life and
Stream time is increased dramatically.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of double rank high-pressure water jet self-vibration spray nozzle devices, pass through increasing
Add resonant cavity order, make it have the humorous intrinsic frequency of multistage sound, realizes the adaptive tune of jet stream static mode under wider operating condition
It is whole, to greatly improve the working range of nozzle and produced jet stream；The nesting polycrystalline diamond at outlet spray piece simultaneously, is improved
Jet stability, and extend nozzle service life and stream time.The utility model is different confining pressures, operating condition is changeable
In the case of jet stream modulate and obtain best self-vibration effect and provide guarantee, also established further to expand the application range of self-vibration jet stream
Fixed basis.
The device includes entrance collapsible tube, single order resonant cavity, second order resonant cavity, water outlet spray piece, backing seat and company
Female connector pipe, entrance collapsible tube are fixed on single order resonant cavity upper end, and water outlet spray piece is fixed on second order resonant cavity lower end, backing
Seat is located at bottom of device, and connecting sleeve wraps up single order resonant cavity and second order resonant cavity.
Wherein, single order resonant cavity is hollow cylinder, and entrance collapsible tube front is equipped with screw thread and is connected with inlet pipeline,
Entrance collapsible tube rear portion connects single order resonant cavity.
Second order resonant cavity is hollow cylinder, and single order resonant cavity lower part is connected with second order resonant cavity top, is discharged
It is equipped with water outlet in the middle part of mouth spray piece, water outlet is placed in second order resonant cavity bottom.
Entrance collapsible tube is fixed on one end of single order resonant cavity, single order resonant cavity position by external screw thread and connecting sleeve
In in connecting sleeve, water outlet sprays piece and is fixed on the another of second order resonant cavity by the external screw thread and connecting sleeve of backing seat
End.
Entrance collapsible tube, single order resonant cavity, second order resonant cavity and water outlet spray piece series connection, cooperation constitute resonant cavity.
Single order resonant cavity upper end end point is equipped with groove, and groove inner ring is equipped with O shape rubber seal one and entrance is shunk
Pipe cooperation sealing；Second order resonant cavity upper end end point is equipped with groove, and it is humorous with single order that groove inner ring is equipped with O shape rubber seal two
Cavity cooperation of shaking seals；It is equipped with groove at second order resonant cavity and water outlet spray piece joint face, it is close to be provided with O shape rubber in groove
The cooperation sealing of seal three.
Since there is self-vibration jet stream strong cavitation and high-frequency self-excitation to vibrate, itself operating condition is also very severe, because
And water outlet spray piece is formed by hard alloy substrate is nested with polycrystalline diamond inner hole.
Entrance collapsible tube, single order resonant cavity, second order resonant cavity internal diameter be sequentially reduced by a certain percentage.
The above-mentioned technical proposal of the utility model has the beneficial effect that:
The utility model provides a kind of self vibration jetting nozzle with the humorous intrinsic frequency of multiple sound, realizes self-vibration jet stream
The adaptive adjustment of the natural frequency of vibration under different operating conditions has expanded the parameter adjusting range of self-vibration nozzle, has improved single spray
The working range of mouth；Simultaneously using the water outlet spray piece for being nested with polycrystalline diamond, the service life of nozzle is greatly improved, is prolonged
It has grown nozzle stream time and has reduced job costs, laid a good foundation for the further genralrlization application of self-vibration jet stream.
Detailed description of the invention
Fig. 1 is double rank high-pressure water jet self-vibration nozzle device structure schematic diagrames of the utility model；
Fig. 2 is that single-order nozzle is compared from double rank nozzles with the variation of different operating condition oscillation intensities；
Fig. 3 is single-order nozzle and double rank nozzle exit pressure oscillation frequency spectrograms under a certain operating condition, wherein (a) is double rank nozzles,
It (b) is single-order nozzle.
Wherein: 1- entrance collapsible tube；2- single order resonant cavity；3- second order resonant cavity；4- water outlet sprays piece；5- backing
Seat；6- connecting sleeve；7-O shape rubber seal one；8-O shape rubber seal two；9-O shape rubber seal three.
Specific embodiment
In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, below in conjunction with attached drawing
And specific embodiment is described in detail.
The utility model provides a kind of double rank high-pressure water jet self-vibration spray nozzle devices.
As shown in Figure 1, the device includes entrance collapsible tube 1, single order resonant cavity 2, second order resonant cavity 3, water outlet spray
Piece 4, backing seat 5 and connecting sleeve 6, entrance collapsible tube 1 are fixed on 2 upper end of single order resonant cavity, and water outlet spray piece 4 is fixed on two
3 lower end of rank resonant cavity, backing seat 5 are located at bottom of device, and connecting sleeve 6 wraps up single order resonant cavity 2 and second order resonant cavity
3。
Wherein, single order resonant cavity 2 is hollow cylinder, and 1 front of entrance collapsible tube is equipped with screw thread and is connected with inlet pipeline
It connects, 1 rear portion of entrance collapsible tube connects single order resonant cavity 2.
Second order resonant cavity 3 is hollow cylinder, and 2 lower part of single order resonant cavity is connected with 3 top of second order resonant cavity, out
The mouth of a river, which is sprayed, is equipped with water outlet in the middle part of piece 4, water outlet is placed in 3 bottom of second order resonant cavity.
Entrance collapsible tube 1 is fixed on one end of single order resonant cavity 2, single order resonant cavity by external screw thread and connecting sleeve 6
Body 2 is located in connecting sleeve 6, and water outlet spray piece 4 is fixed on second order resonant cavity by the external screw thread and connecting sleeve 6 of backing seat 5
The other end of body 3.
Entrance collapsible tube 1, single order resonant cavity 2, second order resonant cavity 3 and water outlet spray piece 4 are connected, and cooperation constitutes resonance
Chamber.
2 upper end end point of single order resonant cavity is equipped with groove, and groove inner ring is equipped with O shape rubber seal 1 and entrance is received
The cooperation sealing of the draw 1；3 upper end end point of second order resonant cavity be equipped with groove, groove inner ring be equipped with O shape rubber seal 28 with
The cooperation sealing of single order resonant cavity 2；It is equipped with groove at second order resonant cavity 3 and water outlet spray 4 joint face of piece, is provided in groove
The cooperation sealing of O shape rubber seal 39.
In design, water outlet spray piece 4 is formed by hard alloy substrate is nested with polycrystalline diamond inner hole.
It is explained combined with specific embodiments below.
In the device, by entrance collapsible tube, single order resonant cavity, second order resonant cavity, water outlet spray piece series connection, cooperate structure
At second order resonant cavity, three different resonance frequencies are all had under single order resonance mode, long corresponding cavity is respectively L1, L2 and L1+
L2, resonance frequency then more horn of plenty under high order mode, so that when free-running frequence changes, self-vibration jet stream can when operating condition changes
With the adaptively selected natural frequency of vibration being close, reach strong peak resonance state.
The device working principle is as follows: the high pressure water that work system provides accesses spray nozzle device by pressure duct, by entering
Mouth collapsible tube 1 enters, and high pressure water flow enters the resonant cavity being made of single order resonant cavity 2 and second order resonant cavity 3, through water outlet
Self-vibration jet stream is formed by the water outlet ejection of water outlet spray piece 4 after spraying 4 necked-down section of piece.Further, when environment confining pressure and come
When flowing pressure changes, free-running frequence accordingly changes, and resonant cavity can be adaptively selected to free-running frequence progress, and puts
Greatly.
Fig. 2 is double ranks spray that the single-order nozzle and Resonant Intake System that Resonant Intake System is L1 are L1+L2 under identical inlet flow conditions
Mouth, the pressure oscillation root-mean-square value under different cavitation numbers.As seen from the figure, double rank nozzles are relative to single-order nozzle, in wider sky
Change pressure oscillation amplitude with higher within the scope of number.
Fig. 3 is in Fig. 2, and cavitation number is the different spray nozzles self-vibration jet pressure oscillation frequency spectrogram under the conditions of 0.08, and (a) is double
Rank nozzle (b) is single-order nozzle, and Fig. 3 (a) is middle, and there are two resonance peaks, and amplitude is higher with respect to Fig. 3 (b).It can by comparison
See, double rank nozzles can select the free-running frequence of different range since it is with the humorous intrinsic frequency of multistage sound relative to single-order nozzle
Select amplification.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, under the premise of not departing from principle described in the utility model, several improvements and modifications can also be made, these improvement
It also should be regarded as the protection scope of the utility model with retouching.
Claims (8)
1. a kind of double rank high-pressure water jet self-vibration spray nozzle devices, it is characterised in that: including entrance collapsible tube (1), single order resonant cavity
Body (2), second order resonant cavity (3), water outlet spray piece (4), backing seat (5) and connecting sleeve (6), entrance collapsible tube (1) are fixed
In single order resonant cavity (2) upper end, water outlet spray piece (4) is fixed on second order resonant cavity (3) lower end, and backing seat (5) is located at dress
Bottom set portion, connecting sleeve (6) wrap up single order resonant cavity (2) and second order resonant cavity (3).
2. double rank high-pressure water jet self-vibration spray nozzle devices according to claim 1, it is characterised in that: the single order resonant cavity
Body (2) is hollow cylinder, and entrance collapsible tube (1) front is equipped with screw thread and is connected with inlet pipeline, entrance collapsible tube (1) rear portion
It connects single order resonant cavity (2).
3. double rank high-pressure water jet self-vibration spray nozzle devices according to claim 1, it is characterised in that: the second order resonant cavity
Body (3) is hollow cylinder, and single order resonant cavity (2) lower part is connected with second order resonant cavity (3) top, and water outlet sprays piece (4)
Middle part is equipped with water outlet, and water outlet is placed in second order resonant cavity (3) bottom.
4. double rank high-pressure water jet self-vibration spray nozzle devices according to claim 1, it is characterised in that: the entrance collapsible tube
(1) one end of single order resonant cavity (2) is fixed on by external screw thread and connecting sleeve (6), single order resonant cavity (2) is located at connection
In casing (6), water outlet spray piece (4) is fixed on second order resonant cavity by the external screw thread and connecting sleeve (6) of backing seat (5)
(3) the other end.
5. double rank high-pressure water jet self-vibration spray nozzle devices according to claim 1, it is characterised in that: the entrance collapsible tube
(1), single order resonant cavity (2), second order resonant cavity (3) and water outlet spray piece (4) series connection, cooperation constitute resonant cavity.
6. double rank high-pressure water jet self-vibration spray nozzle devices according to claim 1, it is characterised in that: the single order resonant cavity
Body (2) upper end end point is equipped with groove, and groove inner ring is equipped with O shape rubber seal one (7) and entrance collapsible tube (1) cooperation is close
Envelope；Second order resonant cavity (3) upper end end point is equipped with groove, and groove inner ring is equipped with O shape rubber seal two (8) and single order resonance
Cavity (2) cooperation sealing；It is equipped with groove at second order resonant cavity (3) and water outlet spray piece (4) joint face, is provided with O in groove
Shape rubber seal three (9) cooperation sealing.
7. double rank high-pressure water jet self-vibration spray nozzle devices according to claim 1, it is characterised in that: the water outlet sprays piece
(4) it is formed by hard alloy substrate is nested with polycrystalline diamond inner hole.
8. double rank high-pressure water jet self-vibration spray nozzle devices according to claim 1, it is characterised in that: the entrance collapsible tube
(1), single order resonant cavity (2), second order resonant cavity (3) internal diameter be sequentially reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821842610.6U CN209205570U (en) | 2018-11-09 | 2018-11-09 | A kind of double rank high-pressure water jet self-vibration spray nozzle devices |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821842610.6U CN209205570U (en) | 2018-11-09 | 2018-11-09 | A kind of double rank high-pressure water jet self-vibration spray nozzle devices |
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| CN209205570U true CN209205570U (en) | 2019-08-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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2018
- 2018-11-09 CN CN201821842610.6U patent/CN209205570U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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