CN201559812U - Ship propeller combination thruster with rotary-guide incoming flow and two-level rotary-spray noise reduction device - Google Patents
Ship propeller combination thruster with rotary-guide incoming flow and two-level rotary-spray noise reduction device Download PDFInfo
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- CN201559812U CN201559812U CN2009202417470U CN200920241747U CN201559812U CN 201559812 U CN201559812 U CN 201559812U CN 2009202417470 U CN2009202417470 U CN 2009202417470U CN 200920241747 U CN200920241747 U CN 200920241747U CN 201559812 U CN201559812 U CN 201559812U
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- water outlet
- propeller
- churning
- incoming flow
- rotary
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Abstract
The utility model discloses a ship propeller combination thruster with rotary-guide incoming flow and a two-level rotary-spray noise reduction device, comprising a swirl tube (6) and a power shaft (2), wherein the swirl tube (6) is connected with the bottom part of a hull (5), and the power shaft (2) can be rotated in the swirl tube (6). One end of the power shaft is connected with a power source, and the other end is supported on an incoming flow swirl plate (9) and is provided with a screw propeller (10). A drainage spiral wing plate (8) is arranged in the swirl tube (6), and the rear end of the swirl tube is fixedly provided with a first-level rotary-spray water outlet (11) and a second-level rotary-spray water outlet (12). A spiral spray plate (13) is arranged in the first-level rotary-spray water outlet, and the second-level rotary-spray water outlet is in a pipe shape and is positioned in the middle of the first-level rotary-spray water outlet. The inner wall of the swirl tube is provided with an inner lining (14) made of damping sound reduction composite materials. The ship propeller combination thruster can increase the work efficiency of a propeller thruster and the sailing speed and stability of ships, can reduce and prevent cavitation phenomena, can reduce the working noises of the propeller and vibration force, and can enhance the durability and concealment of the hull at the same time. Moreover, the ship propeller combination is beneficial to the protection of water ecological environment.
Description
Technical field
The utility model relates to the propeller for vessels propelling unit, is specifically related to have revolve the propeller for vessels built propeller of leading incoming flow and two-stage churning denoising device.
Background technology
Propeller is the widely used major impetus propelling unit of aircraft in the water such as present boats and ships, naval vessels.Propeller is divided into (NACA) collection of illustrative plates series such as three traditional leaf oars, leafy oar.Be divided into substantially again on the Modern Significance that side direction advances oar (CP or FP) but, full-rotating rudder paddle, promote mainly a tuning for Controllable Pitch Propeller and the short tube of a spacing oar.In order to improve the dynamic efficiency of propeller, reduce the noise in the screw propeller progradation, reduce disturbance force and prevent that the cavitating flow phenomenon from producing, the designing technique that the modern ships propeller adopts: the one, by adopting lifting surface method and panel method and cavitating flow and fluid meter algorithm theories and methods screw blade working sections angle and arching face are carried out personalized designs, purpose is to make every effort to reach the control cavitation, to avoid too high disturbance force to produce and to reduce noise, improve the initial critical speed of a ship or plane of cavitation, reduce the vacuolus denudation phenomenon, concrete manifestation is that a large amount of novel blade section such as big skew back blades etc. of adopting substitute traditional blade section; The 2nd, the screw propeller material is improved, carry out inblock cast as adopting all kinds of alloy steels such as brass, corrosion-resistant steel, adopt that the stainless steel sheet welding is made etc., main effect still prevents the corrosion phenomenon effect of seawater to blade, increases the service life of blade.But in real-world operation, no matter be traditional (NACA) blade, or new type profile blade through theoretical treatment arching face, contact reasons such as incoming flow extremely short operation moment with blade owing to the restriction that is subjected to the blade working area, solve fundamentally that the modern ships screw propeller is efficient, the low hydrodynamic(al) of low consumption, low disturbance force, low cavitating flow phenomenon and more environmental protection is made an uproar etc. is on every index of contradictory face and just is difficult to realize.
As everyone knows, screw propeller can produce negative pressure appearance before blade meets water card when the rotation work done, screw propeller is when work simultaneously, because incoming flow is in the face of axial, radially, tangential and variation in water pressure influences, can make the pressure that instantaneous carrying varies in size on each paddle body of screw propeller and produce pulsation, owing to pulsation phenomenon forms a kind of to the bigger disturbance force of hull destructive force with produce cavitation and degrade phenomenon, and produce strong noise source, not only to the ocean, the rivers and lakes water ecology impacts, bring utmost point sense of discomfort for the boats and ships occupant, and can reduce the work efficiency of propeller, when serious even can damage boats and ships and reduce the ship of war greatly, the disguise of latent warship.
The utility model content
Problem at above-mentioned propeller existence, the utility model provides a kind of disturbance force that the cavitation bubble flow phenomenon produced, reduced the screw propeller work noise, reduces screw propeller that not only can reduce, and can improve and revolve the screw propeller built propeller of leading incoming flow and two-stage churning denoising device having of propeller work efficiency not damaging ship structure and increase any power situation.
The technical scheme that the technical problems to be solved in the utility model is taked is: revolve the propeller for vessels built propeller of leading incoming flow and two-stage churning denoising device comprise the whirl cylinder that links to each other with the hull base plate and the dynamical axis that can rotate described having in whirl cylinder, described dynamical axis one end is supported on the hull and with propulsion source with the dynamical axis seal and links to each other, the other end is supported on the incoming flow eddy flow plate that is positioned at whirl cylinder and is fitted with screw propeller, in whirl cylinder, be provided with drainage spiral wing plate, be set with one-level churning water outlet and secondary churning water outlet in the whirl cylinder rear end, be provided with spiral spray plate in the described one-level churning water outlet, described secondary churning water outlet in a tubular form, secondary churning water outlet is positioned in the middle of the one-level churning water outlet, is provided with on the whirl cylinder inwall with having the liner that vibration damping flat composite material is made.
Evenly and not twined by foreign material for the incoming flow that enters in the propeller is flowed to, be provided with antiwind flow diverter at described whirl cylinder front end, described antiwind flow diverter is the tubaeform of lattice-shaped.
Principle of work of the present utility model is: incoming flow is introduced by antiwind flow diverter, under the drainage spiral wing plate of the incoming flow that enters in whirl cylinder imports, and along being that the center of circle rotates with the dynamical axis axle center in the whirl cylinder, the drive of speed of a ship or plane thrust and the screw propeller card negative-pressure adsorption effect that meets water in rotation because when being subjected to ships and advancing, also progressively accumulate certain kinetic energy and potential energy after in high speed revolution, overcoming resistance to water-flow, the eddy flow of incoming flow in whirl cylinder do not contact mutually with the wake of complexity outside tube, and when ship's speed is quickened automatically regulating discharge, because the increase of flow and rotation makes its kinetic energy, the also corresponding increase of potential energy, the incoming flow of this irreversibility is in making the several times fast rotational, because rotating cylinder interacts, can release automatically and separate balanced flow and pressure, guarantee the stable of incoming flow, screwing into the middle eddy flow of whirl cylinder compresses under the distribution of the mouth of a river even, incoming flow stable and that have rotation function and potential energy is cooperated acting equably, blade all obtains stable and even incoming flow of pressing on the curved surface that does work on each blade, the current that have thrust after the acting spray cyclone by two-stage; It is that the center sprays to inner rotary to continue around secondary churning water outlet and with secondary churning water outlet with rotation direction that the one-level spray screws out the current of admitting the blade acting to take out of in the mouth of a river, increased by spray plane, acting vortex flow quick quick-release exoergic is combined into the stack step thrust face of a rotation direction with secondary churning water outlet.
Because the utility model can make the screw propeller card that meets water become initiatively uniform incoming flow by the wake of the circumferential complexity of uncontrollability, the blade card that meets water forms a uniform and stable rotation incoming flow with certain kinetic energy and potential energy, the absorption main frame energy of maximizing changes into thrust and successfully reclaims wake flow to reduce degradation of energy, it can avoid incoming flow in water distribution, acting and different turbulent flows that produce because of flowing in each link during spray pushes away, do not disturb mutually, help realizes maximal efficiency and reduce current partly effectively in the rotatablely moving of fierceness, running foul of each other and breaking and produce sound pollution source, by two-stage churning water outlet, rotation acting stream is sprayed to inner rotary to greatest extent, reach the purpose of screw propeller noise reduction in service with the absorption of noise source, help bringing into play the maximum thrust of acting current.Therefore; the characteristics that the utility model is taked to be had behind the said structure are: do not destroying ship structure and do not increasing under the situation of power input; can not only improve the propeller mechanical efficiency; improve shipping sail speed and stationarity; and can reduce and prevent to produce the cavitation bubble flow phenomenon, reduce the screw propeller operating noise, reduce disturbance force; also can improve the durability and the disguise of hull simultaneously, and help protection water ecological setting.
Description of drawings
Fig. 1 is a structural representation of the present utility model,
Fig. 2 is the A-A sectional structure scheme drawing of Fig. 1,
Fig. 3 is the B-B sectional structure scheme drawing of Fig. 1,
Fig. 4 is the C-C sectional structure scheme drawing of Fig. 1.
Dynamical axis seal 2, dynamical axis 3, preposition axle bed 4, supporting plate 5, hull base plate 6, whirl cylinder 7, butt flange circle 8, drainage spiral wing plate 9, incoming flow eddy flow plate 10, screw propeller 11, one-level churning water outlet 12, secondary churning water outlet 13, spiral spray plate 14, liner 15, antiwind flow diverter 16, rearmounted axle bed 17, the even mouth of a river 18, the drag reduction balance fin compressed in the drawings, 1,
The specific embodiment
At Fig. 1, Fig. 2, among Fig. 3 and Fig. 4, described have revolve lead incoming flow and two-stage churning denoising device the screw propeller built propeller by dynamical axis 2, antiwind flow diverter 15, whirl cylinder 6, butt flange circle 7, drainage spiral wing plate 8, incoming flow eddy flow plate 9, screw propeller 10, one-level churning water outlet 11, secondary churning water outlet 12 is formed, described whirl cylinder 6 usefulness supporting plates 4 are fixedly linked in its both sides and hull base plate 5, described dynamical axis 2 one ends pass butt flange circle 7 and antiwind flow diverter 15 and are supported on the preposition axle bed 3, this power axle head links to each other with propulsion source after also linking to each other with hull by dynamical axis seal 1, the described dynamical axis other end supports and passes the incoming flow eddy flow plate 9 that is positioned at whirl cylinder, separate and the interval rectangular distribution of incoming flow eddy flow plate, be formed with the even water 17 of compressing between the described eddy flow incoming flow plate, be fitted with screw propeller 10 on this dynamical axis right-hand member, described screw propeller is between incoming flow eddy flow plate and one-level churning water outlet, in whirl cylinder 6, be provided with drainage spiral wing plate 8, be set with one-level churning water outlet 11 and secondary churning water outlet 12 at the whirl cylinder right-hand member, be provided with spiral spray plate 13 in the described one-level churning water outlet, described spiral spray plate is fan-shaped, partly overlapping between the spiral spray plate, described one-level churning water outlet is formed by spiral spray plate, described secondary churning water outlet 12 in a tubular form, secondary churning water outlet is positioned in the middle of the one-level churning water outlet, on whirl cylinder inwall and one-level churning water outlet inwall, fixedly install the liner made from composite material 14 with vibration damping flat effect, the whirl cylinder outer wall is provided with drag reduction balance fin 18, described butt flange circle 7 is fixed on the front end of whirl cylinder, on the butt flange circle, be set with antiwind flow diverter 15, described antiwind flow diverter is the tubaeform of lattice-shaped, described preposition axle bed 3 is fixedly linked with antiwind flow diverter, dynamical axis and 16 movable cooperations of rearmounted axle bed that are fixed on incoming flow eddy flow plate middle part.
Claims (2)
1. one kind has and revolves the propeller for vessels built propeller of leading incoming flow and two-stage churning denoising device, it comprises whirl cylinder (6) that links to each other with hull base plate (5) and the dynamical axis (2) that can rotate in whirl cylinder, described dynamical axis one end is supported on the hull and with propulsion source with dynamical axis seal (1) and links to each other, the other end is supported on the incoming flow eddy flow plate (9) that is positioned at whirl cylinder and goes up and be fitted with screw propeller (10), it is characterized in that: in whirl cylinder (6), be provided with drainage spiral wing plate (8), be set with one-level churning water outlet (11) and secondary churning water outlet (12) in the whirl cylinder rear end, be provided with spiral spray plate (13) in the described one-level churning water outlet, described secondary churning water outlet in a tubular form, secondary churning water outlet is positioned in the middle of the one-level churning water outlet, is provided with on the whirl cylinder inwall with having the liner (14) that vibration damping flat composite material is made.
2. revolve the propeller for vessels built propeller of leading incoming flow and two-stage churning denoising device a kind of having according to claim 1, it is characterized in that: the butt flange circle (7) of whirl cylinder front end is provided with antiwind flow diverter (15), and described antiwind flow diverter is the tubaeform of lattice-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202417470U CN201559812U (en) | 2009-12-12 | 2009-12-12 | Ship propeller combination thruster with rotary-guide incoming flow and two-level rotary-spray noise reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202417470U CN201559812U (en) | 2009-12-12 | 2009-12-12 | Ship propeller combination thruster with rotary-guide incoming flow and two-level rotary-spray noise reduction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201559812U true CN201559812U (en) | 2010-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202417470U Expired - Fee Related CN201559812U (en) | 2009-12-12 | 2009-12-12 | Ship propeller combination thruster with rotary-guide incoming flow and two-level rotary-spray noise reduction device |
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| CN (1) | CN201559812U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106275339A (en) * | 2016-08-29 | 2017-01-04 | 上海孚实船舶科技有限公司 | Propelling guider peculiar to vessel |
| CN107499485A (en) * | 2017-09-06 | 2017-12-22 | 艾美达（天津）科技有限公司 | A kind of axial-flow pump formula screw propeller |
| CN110562422A (en) * | 2019-09-11 | 2019-12-13 | 陈云桥 | Superstrong spiral propeller for ship |
| CN113022831A (en) * | 2021-04-29 | 2021-06-25 | 集美大学 | Vibration-damping noise-reducing self-adaptive ship lateral thruster |
-
2009
- 2009-12-12 CN CN2009202417470U patent/CN201559812U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106275339A (en) * | 2016-08-29 | 2017-01-04 | 上海孚实船舶科技有限公司 | Propelling guider peculiar to vessel |
| CN107499485A (en) * | 2017-09-06 | 2017-12-22 | 艾美达（天津）科技有限公司 | A kind of axial-flow pump formula screw propeller |
| CN110562422A (en) * | 2019-09-11 | 2019-12-13 | 陈云桥 | Superstrong spiral propeller for ship |
| CN113022831A (en) * | 2021-04-29 | 2021-06-25 | 集美大学 | Vibration-damping noise-reducing self-adaptive ship lateral thruster |
| CN113022831B (en) * | 2021-04-29 | 2022-06-07 | 集美大学 | Vibration-damping noise-reducing self-adaptive ship lateral thruster |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100825 Termination date: 20101212 |