CN209096990U - A kind of guide plate type ring duct peculiar to vessel - Google Patents
A kind of guide plate type ring duct peculiar to vessel Download PDFInfo
- Publication number
- CN209096990U CN209096990U CN201721654420.7U CN201721654420U CN209096990U CN 209096990 U CN209096990 U CN 209096990U CN 201721654420 U CN201721654420 U CN 201721654420U CN 209096990 U CN209096990 U CN 209096990U
- Authority
- CN
- China
- Prior art keywords
- deflector
- starboard
- larboard
- diversion pipe
- guide plate
- 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
Landscapes
- Hydraulic Turbines (AREA)
Abstract
The utility model provides a kind of guide plate type ring duct peculiar to vessel, is mounted on hull tailing axle outlet front upper place, which is characterized in that including larboard diversion pipe, starboard diversion pipe, larboard deflector, starboard deflector and intermediate reinforcement structure；The port and starboard diversion pipe is installed on the hull two sides of tail of marine rear shaft outlet front upper place, and diversion pipe lower end is directly connect with hull, and upper end is connected with deflector and intermediate reinforcement structure, and deflector and intermediate reinforcement structure are connect with hull.A kind of guide plate type ring duct described in the utility model patent can improve ship stern flow fields, and catheter surface can generate thrust, and the output power of host is reduced under the identical speed of a ship or plane, propeller vibration performance is improved, reaches preferable energy-saving effect.The present apparatus is simple and reliable for structure, convenient for installation and maintenance, has good energy-saving effect, and convenient for installing additional to spot ship.
Description
Technical field
The utility model relates to a kind of stern propeller fronts that is installed on can effectively reduce the water of marine main engine output power
The attached body device of power energy-saving more particularly to a kind of guide plate type ring duct peculiar to vessel.
Background technique
Global 90% international trade cargo relies on Shipping, thus bring greenhouse gas emission and problem of environmental pollution
It becomes increasingly conspicuous, environmental regulation is increasingly strict, while fuel oil expenditure accounts for major portion, therefore energy-saving and emission-reduction in vessel operating cost
The urgent need for having become ship scientific research institutions, designing institute, shipyard and shipowner, ship hydrodynamics energy conservation is attached in shipbuilding industry
There are great markets for body device.Before currently used paddle hydrodynamic force energy saver have wake compensating duct, rectify fin, fin of prewhirling adds
Full conduit and Mewis Duct etc., usually have one or two semi-circular conduit, guide vane using the energy saver of conduit forms
Formula conduit etc..Conduit can generally play the rectified action of stern propeller incoming flow, and rectification fin, fin of prewhirling can generally play stern spiral shell
Revolve the guide functions of paddle incoming flow；Existing conduit is reordered the technical solution of son, and difficulty of processing is big, and error is big and influences energy conservation effect
Fruit.
Application number 201120513730.3 provides a kind of energy-efficient marine conduit, which only reports in semi-circular shape
Larboard conduit and starboard conduit, do not use deflector, energy-saving effect also can further improve；
Application number 94206493.3 provides commutation tube before a kind of paddle, it is by a semi-ring or two semi-ring structures
At installing Wake control fin additional or install 1-3 piece fair water fin additional on hull before the commutation tube lower part on the top of commutation tube
Energy-saving effect is further increased, does not also use the deflector structure form of the utility model.
Application number 95223219.7 provides a kind of compensating nozzle energy-saving device for ships, it is by tubaeform hollow semicircle
The horizontal segment that ring and its circular arc extend is formed, and structure is similar to application number 201120513730.3, practical not new using this
The deflector structure form of type.
Application number 201120513727.1 provides a kind of energy-conservation conduit of built-in guide vane, it by circular ring shape catheter body and
Three guide vane compositions being arranged radially, structure are similar to preposition guide wheel of prewhirling, and difficulty of processing is big.
Application number 201310271844.5 provides a kind of front half guide wheel, it is by preposition half conduit and multiple inlet guide vanes
Piece composition, compared with the utility model, difficulty of processing is big.
Utility model content
The purpose of this utility model be it is simple for existing wake compensating duct technology texture type, catheter interior flow field is not steady enough
Calmly, the problems such as energy-saving effect is not significant is mentioned according to quarter flowing left-right asymmetry and non-uniform feature above paddle shaft line
For a kind of guide plate type ring duct peculiar to vessel, front upper place catheter interior flow field water conservancy diversion is exported to tailing axle by deflector, annular is led
Pipe rectifies left and right sides region flow field above paddle shaft, so that it is more uniform and stable into the flow field of propeller, improve spiral shell
The thrust in the propulsive efficiency and ring duct of paddle is revolved, improves the speed of a ship or plane, while effectively improving afterbody vibration performance.
To achieve the goals above, the utility model adopts the following technical solutions:
A kind of guide plate type ring duct peculiar to vessel involved in the utility model, it is characterised in that: including larboard diversion pipe,
Starboard diversion pipe, larboard deflector, starboard deflector and intermediate reinforcement structure；The larboard diversion pipe and starboard diversion pipe are in
Semi-circular shape is installed in front of propeller at left and right sides of paddle shaft, and diversion pipe upper end is connected by intermediate reinforcement structure to be circularized, together
When larboard diversion pipe and starboard diversion pipe upper end connect respectively with larboard deflector and starboard deflector, diversion pipe lower end and hull
It is connected directly.
Further, larboard deflector and starboard deflector α in a certain angle are arranged in paddle shaft upper position in front of propeller
It sets, 0 ° of 120 ° of < α < of left and right deflector angle, deflector leading edge is bonded with hull tail portion and fair current transition, and baffle surface is
Plane or curved surface；
Further, the length (along captain's direction projection) of deflector is different because of ship, and length is the 0.20 of water conservancy diversion length of tube
Times~5 times, deflector can not connect with diversion pipe, and can connect with diversion pipe；
Further, the length (along captain's direction projection) of diversion pipe is 0.20 times~0.55 times of airscrew diameter, directly
Diameter is 0.40 times~0.90 times of airscrew diameter, and left and right diversion pipe is asymmetric arrangement, water conservancy diversion tube opening outwardly or inwardly, to
It above or tilts down, diversion pipe section is airfoil type；
Guide plate type ring duct peculiar to vessel provided by the utility model, deflector and ring duct are combined well one
It rises, water conservancy diversion and rectification has been carried out to the flow field subregion above paddle shaft before paddle, compared with common wake compensating duct, energy-saving effect
It is further increased with vibration performance, while structure is relatively reliable.The more common wake compensating duct section of guide plate type ring duct
Energy effect is more preferable, structure is relatively reliable, while the not set guide vane for generating effect of prewhirling in the utility model conduit, compared with guide vane
Formula catheter fabrication is simple, it is small to influence on revolution speed of propeller.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of guide plate type ring duct front-view schematic diagram peculiar to vessel；
Fig. 2 be the utility model proposes a kind of guide plate type ring duct left view schematic diagram peculiar to vessel；
Fig. 3 be the utility model proposes a kind of guide plate type ring duct right side view peculiar to vessel；
Fig. 4 be the utility model proposes a kind of guide plate type ring duct schematic top plan view peculiar to vessel；
Fig. 5 is the guide plate type ring duct schematic three dimensional views of the utility model port and starboard deflector asymmetric arrangement；
Fig. 6 is that the utility model port and starboard deflector is illustrated with the guide plate type ring duct three-dimensional that left and right conduit does not connect
Figure；
Fig. 7 is the guide plate type ring duct schematic three dimensional views that the utility model port and starboard baffle surface is curved surface；
In figure: 01- larboard diversion pipe, 02- starboard diversion pipe, 03- larboard deflector, 04- starboard deflector, among 05-
Reinforcement structure, 06- hull, 07- deflector leading edge, 08- deflector rear, the outlet of 09- tailing axle.
Specific embodiment
The specific embodiment of guide plate type ring duct peculiar to vessel a kind of to the utility model carries out detailed with reference to the accompanying drawing
Describe in detail it is bright, the embodiment be merely to illustrate the utility model rather than limitation the scope of the utility model, those skilled in the art
Member falls within the application range as defined in the appended claims to the modification of the various equivalent forms of the utility model.
In water when driving, neighbouring water is influenced by ship motion and generates a kind of water for following ship motion ship
Stream, the water flow are known as wake.In a non-uniform wake field, the movement of propeller causes unstable hydrodynamic force load,
Propeller paddle disk influent stream is uneven, propeller tail portion rotation wake flow, and the eddyresistance of propeller hub hub cap and blade tip etc. is equal
The propulsive efficiency that propeller can be reduced leads to the loss of energy.
The effect of deflector: (1) adjusting direction of flow in front of propeller, reduces the influence in disorder flow field；(2) accelerate spiral shell
Speed of incoming flow in front of paddle top is revolved, paddle disk upper hull wake peak is mitigated, reduces blade workload, extent of cavitation is reduced, subtracts
Scun power energy level.
The effect of annular guiding device is: (1) accelerating propeller upper inflow, keep paddle disk influent stream more uniform, improve
Propulsive efficiency.(2) compensating duct is located at stern water flow Disengagement zone, reduces the separation of quarter water flow, reduces the ship resistance of ship.
(3) left-right asymmetry semi-ring combination can adjust direction and the angle of propeller influent stream, reduce the rotating energy loss of wake flow.
(4) suitable setting angle makes to generate additional thrust on conduit.
A kind of guide plate type ring duct device peculiar to vessel of the utility model, as shown in Figure 1, being mounted on the tail of hull 06
09 front upper place of axial outlet, including larboard diversion pipe 01, starboard diversion pipe 02, larboard deflector 03, starboard deflector 04 and centre
Reinforcement structure 05.
As shown in Figure 1, larboard deflector 03 and starboard deflector 04, which are arranged in tailing axle, exports 09 front upper place, in ring duct
Portion and top, two deflectors are connected on deflector rear 08.As shown in Fig. 2, about 03 larboard deflector connects with hull 06
And be bonded, deflector leading edge 07 is C-shaped or V-type；03 upper end of larboard deflector connects with larboard diversion pipe 01, while adding with centre
Strong structure 05 connects.As shown in figure 3, about 04 starboard deflector connects and is bonded with hull 06, deflector leading edge 07 is C-shaped
Or V-type；04 upper end of starboard deflector connects with starboard diversion pipe 02, while connecting with intermediate reinforcement structure 05.
As shown in figure 4, larboard deflector 03 and the α in a certain angle of starboard deflector 04 are arranged in tailing axle outlet top position
(0 ° of 120 ° of < α <), baffle surface are that (left and right baffle surface is plane in Fig. 4, left and right water conservancy diversion in Fig. 7 for plane or curved surface
Plate surface is curved surface), left and right deflector can port and starboard be arranged symmetrically (such as Fig. 4), can also port and starboard asymmetric arrangement (as scheme
5).Diversion pipe and deflector are not fixed along captain direction relative position, and deflector can connect (such as Fig. 1) with diversion pipe, and can
Do not connect with diversion pipe (as shown in fig. 6, left and right deflector does not connect with left and right conduit).
Larboard diversion pipe 01 and starboard diversion pipe 02 are arranged in tailing axle in semi-circular shape and export at left and right sides of 09 front upper place,
Diversion pipe lower end is directly connected and fixed with hull 06, and upper end is connected by intermediate reinforcement structure 05 or so to be circularized.Port and starboard is led
Flow tube plays rectified action to 09 top left and right sides region flow field of tailing axle outlet before paddle, and the length of diversion pipe is airscrew diameter
0.20 times~0.55 times, diameter is 0.40 times~0.90 times of airscrew diameter.Larboard diversion pipe 01 and starboard diversion pipe 02 can
Be it is asymmetric, according to flow field difference, aperture position and angle be not also identical, water conservancy diversion tube opening inwards or outward, to
It above or tilts down, port and starboard diversion pipe section is identical or different airfoil type.As shown in Fig. 2, larboard diversion pipe 01 be open to
Upper inclination, diversion pipe rear is to paddle rear-inclined at this time；As shown in figure 4,01 outward opening of larboard diversion pipe tilts, diversion pipe at this time
Rear is along beam direction toward paddle rear-inclined.As shown in figure 3, the also inclination upwards of the opening of starboard diversion pipe 02, tilt angle and larboard
Diversion pipe 01 is different；As shown in figure 4, the opening of starboard diversion pipe 02 is also inclined outwardly, diversion pipe rear is past along beam direction at this time
Paddle rear-inclined, larboard diversion pipe 01 and starboard diversion pipe 02 are in asymmetric arrangement.
The working principle of utility model device is: deflector is predominantly located at tailing axle outlet front upper place catheter interior, ship
A part of water of tail, which flows through to take advantage of a situation after deflector, flows to catheter interior, plays guide functions, annular to the flow field of stern catheter interior
Conduit is located at tailing axle and exports position at left and right sides of 09 front upper place, there is stream field to carry out rectified action, while catheter surface generates
Thrust.Deflector and ring duct collective effect make the more uniform stabilization in flow field into propeller, improve pushing away for propeller
Into efficiency, the vibration of propeller is reduced, improves the speed of a ship or plane of ship.The utility model is by deflector and ring duct creative
It is combined together, simple and reliable for structure, convenient for installation and maintenance, more common wake compensating duct energy-saving effect is more preferable.
Embodiment
Certain 5000 tonnes of freighter is in the rapidity model test for installing different energy-conservation conduits, no any energy saver, peace
It fills the common conduit without deflector and the test result of the guide plate type ring duct (referring to table 1) of the utility model is installed,
As shown in table 2 to table 4.By table 2 and the comparison of table 3 it is found that under the identical speed of a ship or plane (when such as 12.0kn), installation common conduit (no left and right
Side of a ship deflector) than propulsive efficiency η of the installation without guide plate type ring ductDSSlightly increase, effective power PESIt is almost unchanged, energy conservation
Effect Δ Pd is 2.5%.By table 2 and the comparison of table 4 it is found that under the identical speed of a ship or plane (when such as 12.0kn), mounting guiding board formula annular is led
Guan Hou, the thrust deduction t and wake fraction w of hull are than installing the reduction without guide plate type ring duct, real paddle efficiency eta0sWith
Propulsive efficiency ηDSIt is respectively mounted the increase of no guide plate type ring duct, effective power PESAlso reduce, energy-saving effect Δ Pd reaches
5.2%.By comparing it is found that energy-saving effect is more obvious after mounting guiding board formula ring duct.
1 5000 tonnes of freighter guide plate type ring duct major parameters of table
| Serial number | Content | Parameter |
| 1 | Larboard catheter length | 0.26 times of airscrew diameter |
| 2 | Starboard catheter length | 0.26 times of airscrew diameter |
| 3 | Larboard conduit diameter | 0.48 times of airscrew diameter |
| 4 | Starboard conduit diameter | 0.48 times of airscrew diameter |
| 5 | Left and right baffle surface | Plane |
| 6 | Left and right deflector leading edge | C-type |
| 7 | Deflector angle α | 80° |
The 2 5000 tonnes of test results of freighter without any energy saver of table
3 5000 tonnes of freighters of table have common conduit (no deflector) test result
4 5000 tonnes of freighters of table have guide plate type ring duct test result
Preferred embodiments of the present invention, still, the utility model and unlimited are described in detail in conjunction with attached drawing above
Detail in above embodiment can be to the skill of the utility model in the range of the technology design of the utility model
Art scheme carries out a variety of simple variants, these simple variants belong to the protection scope of the utility model.
Claims (10)
1. a kind of guide plate type ring duct peculiar to vessel, including be installed on the larboard diversion pipe (01) of hull tail portion in front of propeller,
Starboard diversion pipe (02), it is characterised in that: it further include the larboard deflector (03) and starboard deflector (04) being connected with each other, and
Intermediate reinforcement structure (05)；The upper end of the larboard diversion pipe (01) and starboard diversion pipe (02) passes through intermediate reinforcement structure (05)
Connection circularizes；The larboard deflector (03), starboard deflector (04) are connected with hull (06) respectively；Under the diversion pipe
End is connected with hull (06).
2. a kind of guide plate type ring duct peculiar to vessel according to claim 1, it is characterised in that: the larboard deflector
(03) it is respectively arranged and is leaned in front of the inside of the larboard diversion pipe (01) and starboard diversion pipe (02) with starboard deflector (04)
At nearly hull (06).
3. a kind of guide plate type ring duct peculiar to vessel according to claim 1 or 2, it is characterised in that: the larboard water conservancy diversion
The upper end of pipe (01) and starboard diversion pipe (02) is connect with larboard deflector (03) and starboard deflector (04) respectively.
4. a kind of guide plate type ring duct peculiar to vessel according to claim 1 or 2, it is characterised in that: the larboard water conservancy diversion
Plate (03) and starboard deflector (04) arrangement in a certain angle.
5. a kind of guide plate type ring duct peculiar to vessel according to claim 1 or 2, it is characterised in that: larboard deflector
(03) and starboard deflector (04) is arranged in recess in the contour line of hull (06) tail portion.
6. guide plate type ring duct peculiar to vessel according to claim 1 or 2, which is characterized in that the larboard deflector
(03) and the leading edge (07) of starboard deflector (04) it, fits closely with hull (06) and fairing transition.
7. a kind of guide plate type ring duct peculiar to vessel according to claim 1 or 2, it is characterised in that: larboard deflector
(03) and starboard deflector (04) surface is plane or curved surface.
8. guide plate type ring duct peculiar to vessel according to claim 1 or 2, which is characterized in that the larboard diversion pipe
(01) it can be independently configured with the respective installation site of starboard diversion pipe (02) and inclination angle.
9. a kind of guide plate type ring duct peculiar to vessel according to claim 1 or 2, it is characterised in that: the larboard water conservancy diversion
The length of pipe (01) and starboard diversion pipe (02) is 0.20 times~0.55 times of airscrew diameter.
10. a kind of guide plate type ring duct peculiar to vessel according to claim 1 or 2, it is characterised in that: the larboard water conservancy diversion
The diameter of pipe (01) and starboard diversion pipe (02) is 0.40 times~0.90 times of airscrew diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721654420.7U CN209096990U (en) | 2017-12-02 | 2017-12-02 | A kind of guide plate type ring duct peculiar to vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721654420.7U CN209096990U (en) | 2017-12-02 | 2017-12-02 | A kind of guide plate type ring duct peculiar to vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209096990U true CN209096990U (en) | 2019-07-12 |
Family
ID=67145977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721654420.7U Active CN209096990U (en) | 2017-12-02 | 2017-12-02 | A kind of guide plate type ring duct peculiar to vessel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209096990U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107985538A (en) * | 2017-12-02 | 2018-05-04 | 中船重工（上海）节能技术发展有限公司 | A kind of guide plate type ring duct peculiar to vessel |
| CN112078770A (en) * | 2019-11-14 | 2020-12-15 | 浙江大学 | Full-conduit type two-stage pod propeller and design method thereof |
-
2017
- 2017-12-02 CN CN201721654420.7U patent/CN209096990U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107985538A (en) * | 2017-12-02 | 2018-05-04 | 中船重工（上海）节能技术发展有限公司 | A kind of guide plate type ring duct peculiar to vessel |
| CN107985538B (en) * | 2017-12-02 | 2024-06-11 | 中船(上海)节能技术有限公司 | Marine deflector-type annular conduit |
| CN112078770A (en) * | 2019-11-14 | 2020-12-15 | 浙江大学 | Full-conduit type two-stage pod propeller and design method thereof |
| CN112078770B (en) * | 2019-11-14 | 2021-08-03 | 浙江大学 | Full-conduit type two-stage pod propeller and design method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202368778U (en) | Combined energy-saving transport ship | |
| JP5539025B2 (en) | Front fixed wing with duct | |
| US20130121837A1 (en) | Device for reducing the drive power requirements of a watercraft | |
| CN209096990U (en) | A kind of guide plate type ring duct peculiar to vessel | |
| JPWO2013014938A1 (en) | Small ducted propeller and ship | |
| KR20110083998A (en) | Duct for ship | |
| CN106985990A (en) | A kind of preposition flap peculiar to vessel | |
| CN106043641A (en) | Annular flow guide gate for ship | |
| CN205256630U (en) | Pipe type marine propeller | |
| CN105873818A (en) | Marine propulsion unit | |
| KR101292911B1 (en) | The stern appendage to improve ship's speed and wake field on the stern of ships | |
| CN202368782U (en) | Energy-saving guide pipe for built-in guide vanes | |
| CN206704493U (en) | A kind of preposition flap peculiar to vessel | |
| CN110116781A (en) | A kind of energy saving hydrofoil for modest type stern ship | |
| CN107985538A (en) | A kind of guide plate type ring duct peculiar to vessel | |
| JPH10244993A (en) | Duct propeller device | |
| CN209176887U (en) | Energy saver before a kind of ships and light boats paddle | |
| US4309172A (en) | Ship with improved stern structure | |
| CN205931199U (en) | Marine annular airflow fence | |
| CN103895850B (en) | A kind of combined energy-saving bracing strut device | |
| CN103332280B (en) | Radiance type preposed guide wheel | |
| KR20130125628A (en) | Appendage of fan shape duct for improving stern flow of ship | |
| KR101506050B1 (en) | Duct Structure for Ship | |
| CN205440823U (en) | To changeing oar front and back oar propeller hub connection structure | |
| CN218986927U (en) | Rifling type honeycomb duct for ship propeller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 312, No. 189 Kaohsiung Road, Huangpu District, Shanghai, 200011 Patentee after: China Shipbuilding (Shanghai) Energy Conservation Technology Co.,Ltd. Address before: Room 312, No. 189 Kaohsiung Road, Huangpu District, Shanghai, 200011 Patentee before: CSIC (SHANGHAI) ENERGY SAVING TECHNOLOGY DEVELOPMENT CO.,LTD. |