CN103596839A - Propulsion assembly in a ship - Google Patents

Propulsion assembly in a ship Download PDF

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Publication number
CN103596839A
CN103596839A CN201280029078.5A CN201280029078A CN103596839A CN 103596839 A CN103596839 A CN 103596839A CN 201280029078 A CN201280029078 A CN 201280029078A CN 103596839 A CN103596839 A CN 103596839A
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CN
China
Prior art keywords
ship
chamber
propulsion
hull
line
Prior art date
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Pending
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CN201280029078.5A
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Chinese (zh)
Inventor
K.科基拉
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ABB AS Norway
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ABB AS Norway
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Publication of CN103596839A publication Critical patent/CN103596839A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/16—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recesses; with stationary water-guiding elements; Means to prevent fouling of the propeller, e.g. guards, cages or screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/08—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
    • B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Vibration Prevention Devices (AREA)
  • Prevention Of Electric Corrosion (AREA)
  • Actuator (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

A propulsion assembly comprises at least one propulsion unit (10) located at the stern of a ship. At least one propulsion unit (10) comprising: a hollow support structure (11) attached to the hull; a chamber (12) attached to the support structure; an electric motor (13) within the chamber (12); a propeller (15) at the front end of the chamber (12), the propeller (15) being connected to the electric motor (13) by a shaft; and a rudder (16) pivotably supported at the rear end of the chamber (12). At least one propulsion unit (10) is mounted such that the axis (SL) forms a vertical inclination angle (a) in the range of 1 to 8 degrees with respect to the Water Line (WL) such that the front end of the chamber (22) is lower than the rear end of the chamber (22) with respect to the Water Line (WL).

Description

Propulsion assembly in ship
Technical field
The present invention relates to the propulsion assembly in ship according to the preamble of claim 1.
This assembly is intended to use in ship, and ship is provided with at least one propulsion unit at the stern place that is positioned at ship.Ship can have an only propulsion unit at the stern place that is positioned at ship, or at the stern place of ship, is positioned at two parallel propulsion units of relative side of line of centers of the hull of ship.Especially in the large ship of the oil tanker such as cruiser, transporting oil or liquefied natural gas, vheicle carrier, container ship and ferryboat, use propulsion unit.
Background technology
WO discloses 98/54052 and discloses a kind of ship, and it has twin screw and two shillings of (Schilling) rudders,, for each propelling unit, has corresponding rudder that is.By corresponding axle, each rudder is installed pivotly, axle has bulbous nose part, waisting centre portion and flared afterbody.Flared afterbody is substantially only upper in the inner side of each rudder (that is, towards the right sidepiece of another rudder) outwards to launch.Each rudder has upper plate and lower plate, and plate is more wide on inner side than on outside, and plate aligns with corresponding angle of rake stream line pattern, and lower plate has downward angled part on inner side.Rudder seems to form certain outer Eight characters (toe-out) angle with respect to the line of centers of hull.
US Patent 7,033,234 disclose a kind of for handling the method for ship at the bottom of plan V-arrangement, this gear have two can individual operation driver element, driver element has underwater case, underwater case is from the bottom of ship to downward-extension.When moving ahead so that plan speed is straight, underwater case is set to the so-called interior Eight characters (toe-in) angle, that is, and with respect to the line of centers of ship with relative constant amplitude angle towards inclining towards each other.When ship is turned to, inner driver element is set to the manipulation angle larger than external drive unit.
JP patent discloses 2006007937 and discloses a kind of assembly in ship, and gear has two gondolas, and gondola has the contrary-turning propeller at the stern place that is positioned at ship.In the first embodiment, the first gondola is fixedly secured in the rear portion of keel, and axis is inclined upwardly.By means of horizontal shaft, the second gondola is fastened on operating console, operating console rotates around vertical axis, and can reduce and rising operating console by means of hydraulic actuating cylinder.The axial alignment of the axis of the second gondola and the first gondola.In a second embodiment, with horizontal shaft, the rear end of the first gondola is fastened on keel, and the front end of the first gondola is fastened on vertical cylinder body.Thereby can regulate with cylinder body the inclination of the first gondola.In the 3rd embodiment, two gondolas are all fastened on the relative end of common framework, and framework supports to operating console at the centre portion of horizontal shaft, and operating console rotates around vertical axis, and can reduce and rising operating console by means of hydraulic actuating cylinder.In this is arranged, there is no independent rudder, and rotate around vertical axis by the second gondola that only makes to be positioned on the travel direction of ship after the first gondola, or make two gondolas all around vertical axis rotation, carry out management of a ship.
Summary of the invention
Target of the present invention is to improve the propulsion assembly of the prior art in ship.
Propulsion assembly according to the present invention is characterised in that the feature in the characteristic of claim 1.
Propulsion assembly comprises at least one propulsion unit at the stern place that is positioned at ship.Ship comprises the hull with horizontal water line.At least one propulsion unit comprises: be attached to the hollow supporting structure on hull; Be attached to the chamber on supporting structure; Electro-motor in chamber; At the propelling unit at the front end place of chamber, described propelling unit is connected on electro-motor by means of axle; And the rudder that is bearing in pivotly the rear end of chamber.
According to the present invention, at least one propulsion unit is mounted to and makes axis with respect to water line, be formed on the vertical inclination angle in the scope of 1 to 8 degree, makes with respect to water line, and the front end of chamber is lower than the rear end of chamber.
Angle of rake water influent stream angle is improved at the vertical inclination angle of at least one propulsion unit, and this can improve angle of rake efficiency.
The noise and vibration that the cavitation in the hull of ship causes is also reduced at the vertical inclination angle of at least one propulsion unit, because angle of rake improved influent stream angle can reduce cavitation.
Axis vibration and power are also reduced in the vertical inclination angle of at least one propulsion unit.This is that the asymmetric power acting on propelling unit reduces because when angle of rake water influent stream angle is improved.Reduce load and vibration by the service life that increases the bearing of axle and be subject to other member that these vibrations and power affects.
The present invention can be advantageously used in the ship with two propulsion units, and two propulsion units are positioned at the relative side place of the line of centers of ship side by side at the stern place of ship.Each propulsion unit is advantageously arranged on outer Eight characters position, thereby with respect to the line of centers of hull, is formed on the level inclination in the scope of 0.5 to 6 degree.Thereby the front end of chamber tilts away from the line of centers of the hull of ship, the rear end of chamber tilts towards the line of centers of the hull of ship.
This outer Eight characters of propulsion unit is arranged and will further be improved angle of rake efficiency, and the noise and vibration in the hull of minimizing ship.
The stern place that the present invention is used in ship is provided with the large ship of at least one propulsion unit, for example oil tanker of cruiser, transporting oil or liquefied natural gas, vheicle carrier, container ship and ferryboat.The power of the propulsion unit in so large ship is at least 1 MW approximately.
Accompanying drawing explanation
With reference to accompanying drawing, describe below specific embodiments more of the present invention in detail, wherein:
Fig. 1 shows the propulsion assembly of prior art.
Fig. 2 shows according to propulsion assembly of the present invention embodiment.
Fig. 3 shows according to another embodiment of propulsion assembly of the present invention.
Fig. 4 shows according to the birds-eye view of another embodiment of propulsion assembly of the present invention.
The specific embodiment
Fig. 1 shows prior art propulsion assembly.Layout comprises the propulsion unit 10 at the stern place that is positioned at ship.Propulsion unit 10 comprises supporting structure 11, chamber 12, electro-motor 13, axle 14, propelling unit 15 and rudder 16.Chamber 12 utilizes hollow supporting structure 11 to be connected on the hull 100 of ship.Axle 14 has first end and the second end, and first end is connected on electro-motor 13, and the second end is outstanding from the front end of chamber 12, and is connected on propelling unit 15.Thereby propelling unit 15 is positioned at the front end place of chamber 12.Electro-motor 13 can be induction motor or synchronous motor.Propulsion unit 10 use supporting structures 12 are fixed on the hull 100 of ship.This represents that propelling unit 15 remains on the hull 100 with respect to ship all the time on fixed position.Rudder 16 is positioned at the rear end of chamber 12.Rudder 16 is pivotably connected on hull 100 and chamber 12 by means of axis 17.Rudder 16 forms and makes it form the smooth continuation portion of supporting structure 11 and chamber 12.The bottom part of rudder 16 is extended a distance below chamber 12.The order of operating control (not shown) based on from navigation bridge makes rudder 16 rotations.Figure has also shown the travel direction S of ship.
Axle 14 forms the axis SL of propulsion unit 10.Axis SL is parallel with water line WL, and this represents that the angle [alpha] between them is 0 degree.The axis 17 of rudder 16 and the angle between axis SL (that is, angle γ) are 90 degree.The axis 17 of rudder 16 and the angle between water line WL (that is, angle δ) are also 90 degree.
Fig. 1 also shows the streamline F of the water that flows to propulsion unit 10.Can from figure, see, streamline F does not enter the propelling unit 15 of propulsion unit 10 with best angle.This can weaken the hydraulic efficiency of propelling unit 15.
Fig. 2 shows according to propulsion assembly of the present invention embodiment.Propulsion unit 10 is corresponding to the propulsion unit showing in Fig. 1.The difference of comparing with the layout showing in Fig. 1 is, the axis SL of propulsion unit 10 forms vertical inclination alpha with respect to water line WL.This expression is with respect to water line WL, and the front end of chamber 12 is lower than the rear end of chamber 12.When propulsion unit 10 edges vertically tilt, the angle that enters the current F of propelling unit 15 will be improved.This hydraulic efficiency that represents propelling unit 15 will be improved.The axis 17 of rudder 16 and the angle between water line WL (that is, angle δ) remain 90 degree as in Fig. 1.But in this embodiment, the axis 17 of rudder 16 and the angle between axis SL (that is, angle γ) are less than 90 degree, because propulsion unit 10 is along vertical inclination.Figure has also shown the travel direction S of ship.
Fig. 3 shows according to another embodiment of propulsion assembly of the present invention.This arranges the layout corresponding to Fig. 2, that is, propulsion unit 10 tilts with angle [alpha] with respect to water line WL.Difference is the layout of rudder 16.In this embodiment, the axis 17 of rudder 16 and the angle between axis SL (that is, angle γ) are 90 degree, and this is corresponding to the situation in Fig. 1.This axis 17 that represents rudder 16 tilts with respect to water line WL, that is, angle δ is greater than 90 degree.About the stream being produced by propelling unit 15, rudder 16 axis 17 are favourable with the rectangular layout of axis SL shape.Figure has also shown the travel direction S of ship.
Fig. 4 shows according to the birds-eye view of another embodiment of propulsion assembly of the present invention.Two propulsion units 10,20 are positioned at each side place of the centre line C L of hull 100 side by side at the stern place of ship.Each propulsion unit 10,20 comprises: utilize supporting structure to be connected to the chamber 12,22 on the hull 100 of ship; Be positioned at the propelling unit 15,25 at the front end place of chamber 12,22, its electro- motor 13,23 being positioned in chamber 12,22 drives.Rudder 16,26 is further positioned at the rear end of chamber 12,22.Each propulsion unit 10,20 can be corresponding to the propulsion unit showing in Fig. 2 or Fig. 3.This represents that each propulsion unit 10,20 vertically tilts with angle [alpha] edge with respect to water line WL, as shown in Fig. 2 and Fig. 3.The layout of rudder 16,26 can be that demonstration in Fig. 2, or in Fig. 3, show like that.Figure has also shown the travel direction S of ship.
In this embodiment, the axis SL of propulsion unit 10,20 is arranged on outer Eight characters position with respect to the centre line C L of the hull 100 of ship.The centre line C L of the hull 100 of axis SL and ship forms level inclination β, and axis SL is intersected each other the some place in the centre line C L of the hull at ship, and described joining is positioned at after ship.The front end of chamber 12,22 is with respect to the centre line C L of the hull 100 of ship outward-dipping (outer Eight characters position), and the rear end of chamber 12,22 slopes inwardly with respect to the centre line C L of the hull 100 of ship.Outer splay angle β is in the scope of 0.5 to 6 degree.Figure has also shown the cargo tank 200 for liquefied natural gas (LNG) on ship.
This outer Eight characters of propulsion unit 10,20 is arranged and will further be improved the water influent stream angle of propelling unit 15,25.This outer Eight characters is arranged and will be raised the efficiency, and reduces the vibration in hull and axle.
The efficiency of the embodiment showing in Fig. 2 is probably identical with the efficiency of the embodiment showing in Fig. 3.Compare with the embodiment showing in Fig. 3, the manipulative capability of the ship of the embodiment showing in Fig. 2 may be better.On the other hand, aspect processability and product structure, the embodiment showing in Fig. 3 may be better, because adjust inclination alpha with the setting angle of product, but need in each project, not revise product itself.On the other hand, according to the layout showing in Fig. 2, product can have for example predetermined vertical inclination angle of 4 degree, and according to the layout showing in Fig. 3, in total vertical inclination alpha, should be in the situation of 6 degree, will realize remaining for example 2 degree.
Must determine individually vertical inclination alpha and level inclination β (that is, outer splay angle) for each ship or a series of ship.Based on the model measurement of each ship or a series of ships being optimized to vertical inclination alpha and level inclination β.Optimize individually vertical inclination alpha and level inclination β.The target of optimizing is farthest to reduce consumption of fuel, that is, raise the efficiency.Conventionally when angle of rake water influent stream is straight, realize optimum efficiency.
At least one electrical generator (not shown) is provided in the hull 100 of ship, thereby to the electro- motor 13,23 in propulsion unit 10,20, provides electric power by electrical network (not shown).
In the drawings, independent rudder 26 is bearing in chamber 22 places of hull 100 and propulsion unit 20 pivotly.Rudder 26 can be bearing in hull 100 and/or propulsion unit 20 places pivotly.Thereby rudder 26 can be bearing in only hollow supporting structure 21 places pivotly, or be bearing in hull 100 and hollow supporting structure 21 places, or be bearing in hull 100 and chamber 22 places, or be bearing in chamber 21 and hollow supporting structure 21 places.
The example of the embodiments of the invention of introducing is above not meant to and makes scope of the present invention only be confined to these embodiment.Can to the present invention, make some modifications within the scope of the claims.

Claims (4)

1. the propulsion assembly in ship, wherein, described ship comprises hull (100), described hull (100) has horizontal water line (WL) and line of centers (CL), and wherein, described propulsion assembly comprises:
Be positioned at least one fixing propulsion unit (10,20) at the stern place of described hull (100),
Described at least one propulsion unit (10,20) comprising:
Be attached to the hollow supporting structure (11) on described hull (100),
The chamber (12) with front-end and back-end, it is upper that described chamber (12) is attached to described supporting structure (11),
Electro-motor (13) in described chamber (12),
Axle (14), it has first end and the second end, the described first end of described axle (14) is connected on described electro-motor (13), and described second end of described axle (14) is outstanding from the front end of described chamber (12), and be connected on propelling unit (15), the central axis of described axle (14) forms axis (SL), and
Be bearing in pivotly the rudder (16) of the described rear end of described chamber (12),
It is characterized in that:
Described at least one propulsion unit (10,20) be mounted to and make described axis (SL) with respect to described water line (WL), be formed on the vertical inclination angle (α) in the scope of 1 to 8 degree, make with respect to described water line (WL), the described front end of described chamber (22) is lower than the described rear end of described chamber (22).
2. propulsion assembly according to claim 1, it is characterized in that, described propulsion assembly comprises two fixedly propulsion units (10,20), described two fixing propulsion units (10,20) at the described stern place of described ship, be positioned at side by side the relative side of described line of centers (CL) of the described hull (100) of described ship, each propulsion unit (10,20) is mounted to and makes:
Described axis (SL) is formed on the vertical inclination angle (α) in the scope of 1 to 8 degree with respect to described water line (WL), make with respect to described water line (WL), the described front end of described chamber (22) is lower than the described rear end of described chamber (22)
Described axis (SL) is formed on the level inclination (β) in the scope of 0.5 to 6 degree with respect to the described line of centers (CL) of the described hull (100) of described ship, the described front end of described chamber (22) is tilted away from described line of centers (CL), and the described rear end of described chamber (22) tilts towards described line of centers (CL).
3. propulsion assembly according to claim 1 and 2, is characterized in that, described ship is oil tanker, vheicle carrier, container ship or the ferryboat of cruiser, transporting oil or liquefied natural gas.
4. according to the propulsion assembly described in any one in claims 1 to 3, it is characterized in that, the power of described at least one propulsion unit (10,20) is at least 1 MW.
CN201280029078.5A 2011-06-14 2012-06-13 Propulsion assembly in a ship Pending CN103596839A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP11169720.7A EP2535262B1 (en) 2011-06-14 2011-06-14 A propulsion arrangement in a ship
EP11169720.7 2011-06-14
PCT/EP2012/061190 WO2012171952A1 (en) 2011-06-14 2012-06-13 A propulsion arrangement in a ship

Publications (1)

Publication Number Publication Date
CN103596839A true CN103596839A (en) 2014-02-19

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US (1) US20140179178A1 (en)
EP (1) EP2535262B1 (en)
JP (1) JP2014516865A (en)
KR (1) KR20140007013A (en)
CN (1) CN103596839A (en)
BR (1) BR112013031988A2 (en)
CA (1) CA2838782A1 (en)
RU (1) RU2544250C1 (en)
SG (1) SG195282A1 (en)
WO (1) WO2012171952A1 (en)

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CN104386231A (en) * 2014-11-05 2015-03-04 上海船舶研究设计院 Rudder-pod ship electric propulsion system
CN109436269A (en) * 2018-12-06 2019-03-08 无锡瑞风船用推进器有限公司 A kind of full circle swinging steering engine paddle for wind-powered electricity generation O&M ship
CN112124543A (en) * 2020-09-23 2020-12-25 宜昌一凡船舶设计有限公司 Ship propeller-rudder combined vortex-eliminating energy-saving device and installation method
CN112124542A (en) * 2020-09-23 2020-12-25 宜昌一凡船舶设计有限公司 Ship hydrodynamic comprehensive energy-saving device and installation method
CN116748725A (en) * 2023-05-26 2023-09-15 南通中远海运船务工程有限公司 Processing and mounting method for offshore wind power operation and maintenance stern propeller base

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Publication number Priority date Publication date Assignee Title
CN104386231A (en) * 2014-11-05 2015-03-04 上海船舶研究设计院 Rudder-pod ship electric propulsion system
CN109436269A (en) * 2018-12-06 2019-03-08 无锡瑞风船用推进器有限公司 A kind of full circle swinging steering engine paddle for wind-powered electricity generation O&M ship
CN112124543A (en) * 2020-09-23 2020-12-25 宜昌一凡船舶设计有限公司 Ship propeller-rudder combined vortex-eliminating energy-saving device and installation method
CN112124542A (en) * 2020-09-23 2020-12-25 宜昌一凡船舶设计有限公司 Ship hydrodynamic comprehensive energy-saving device and installation method
CN112124543B (en) * 2020-09-23 2021-10-22 宜昌一凡船舶设计有限公司 Ship propeller-rudder combined vortex-eliminating energy-saving device and installation method
CN112124542B (en) * 2020-09-23 2022-04-15 宜昌一凡船舶设计有限公司 Ship hydrodynamic comprehensive energy-saving device and installation method
CN116748725A (en) * 2023-05-26 2023-09-15 南通中远海运船务工程有限公司 Processing and mounting method for offshore wind power operation and maintenance stern propeller base

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CA2838782A1 (en) 2012-12-20
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US20140179178A1 (en) 2014-06-26
EP2535262B1 (en) 2015-12-30
JP2014516865A (en) 2014-07-17
SG195282A1 (en) 2013-12-30
KR20140007013A (en) 2014-01-16
EP2535262A1 (en) 2012-12-19
WO2012171952A1 (en) 2012-12-20

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