WO2018095548A1 - Buse d'une hélice de navire - Google Patents

Buse d'une hélice de navire Download PDF

Info

Publication number
WO2018095548A1
WO2018095548A1 PCT/EP2016/078956 EP2016078956W WO2018095548A1 WO 2018095548 A1 WO2018095548 A1 WO 2018095548A1 EP 2016078956 W EP2016078956 W EP 2016078956W WO 2018095548 A1 WO2018095548 A1 WO 2018095548A1
Authority
WO
WIPO (PCT)
Prior art keywords
nozzle
sacrificial anode
receptacle
nozzle according
sacrificial
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.)
Ceased
Application number
PCT/EP2016/078956
Other languages
German (de)
English (en)
Inventor
Klaus TWEDDELL
Dietrich BENKE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schottel GmbH
Original Assignee
Schottel GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schottel GmbH filed Critical Schottel GmbH
Priority to PCT/EP2016/078956 priority Critical patent/WO2018095548A1/fr
Priority to RU2019120005A priority patent/RU2722082C1/ru
Priority to CN201680091203.3A priority patent/CN110023187B/zh
Priority to EP16801780.4A priority patent/EP3544887B1/fr
Priority to BR112019006498-2A priority patent/BR112019006498B1/pt
Priority to CA3041179A priority patent/CA3041179C/fr
Publication of WO2018095548A1 publication Critical patent/WO2018095548A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B59/00—Hull protection specially adapted for vessels; Cleaning devices specially adapted for vessels
    • 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
    • B63H5/14—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purpose
    • B63H5/15—Nozzles, e.g. Kort-type
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
    • C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
    • C23F13/10—Electrodes characterised by the structure
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
    • C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
    • C23F13/18—Means for supporting electrodes
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
    • C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
    • C23F13/20—Conducting electric current to electrodes

Definitions

  • the invention relates to a nozzle of a rotatable about a rotation axis
  • the arrangement of a nozzle as a jacket around a ship's propeller has been known for many years and is also referred to as Kortdüse.
  • the nozzle shell has a wing-like flow profile and serves to reduce flow losses at the ends of the propeller blades and a higher
  • the nozzle shell like the ship propeller itself, is usually made of metal and must be protected from electrolytic corrosion.
  • the ship's propeller in seawater is otherwise due to the high
  • Ship propeller comprising propulsion system including the associated nozzle.
  • the object of the invention is to propose a nozzle of a ship's propeller, which overcomes the disadvantages of the prior art, is easy to produce and in which a change in the sacrificial anodes after their consumption is easy to accomplish. This object is achieved with a nozzle according to the features of claim 1.
  • Sacrificial anode is formed so corresponding to the receptacle that it can be inserted into the receptacle substantially filling the receptacle. In this way, it is possible to arrange a sufficient number or a sufficient volume of sacrificial anodes in the region of the outer surface of the nozzle shell, which, due to their arrangement in the recessed receptacle, does not protrude or at most slightly protrude beyond the flow profile.
  • the at least one sacrificial anode is not subject to any further restrictions; therefore, it can be anodes of almost any contour, in particular also
  • Substantially filling in of the recessed receptacle is understood to mean filling up of the space in the area of the recessed receptacle in which the accommodated anode does not protrude or projects only slightly beyond the adjacent flow profile.
  • the at least one sacrificial anode is designed so that it after insertion into the receptacle, the contour of Flow profile of the nozzle according to the invention adjacent to the recording continues smoothly and so far forms itself a part of the airfoil due to a corresponding design to the airfoil.
  • the disturbance of fluid flow around the nozzle shell due to the sacrificial anodes becomes
  • Nozzle thrust while driving is not affected despite the presence of the sacrificial anodes.
  • the arrangement and positioning of the receptacle and the sacrificial anodes positioned therein is in principle subject to no restriction and can by
  • Sacrificial anodes as well as an arrangement only in sub-segments, for example, a peripheral portion of 180 ° are provided around the nozzle outer shell.
  • Nozzle jacket behind the ship's propeller is a Nozzle jacket behind the ship's propeller.
  • the recording can according to a proposal of the invention as an annular circumferential step paragraph in the outer surface of the nozzle shell
  • sacrificial anodes annularly used continuously in the step paragraph, so that a desired volume fraction of the stepped paragraph filled by the sacrificial anodes and the flow profile of the nozzle shell of the sacrificial anodes to bridge the
  • Step heel is smoothly continued. It is not necessary to fill the entire volume fraction of the stepped heel with sacrificial anodes, although such a complete filling is particularly effective in terms of flow. However, it can also be provided to fill the receptacle only partially with anodes, which is surprisingly accompanied by no significant loss of effectiveness. The only important thing is that the Anodes can be overflowed within the recording without significant resistance along the airfoil.
  • a multiplicity of discrete receptacles introduced annularly into the outer surface is provided, into each of which a corresponding sacrificial anode is inserted.
  • the at least one sacrificial anode is detachably inserted into the receptacle
  • the invention proposes that the
  • At least one sacrificial anode has an electrically conductive support plate with protruding fastening tabs for attachment to the nozzle shell.
  • the sacrificial anodes can be cast, for example, from a suitable metal, wherein the carrier plate can be cast directly with the production of the sacrificial anodes, which allows a rational production and a good electrical connection.
  • the at least one sacrificial anode based on zinc, magnesium or aluminum or combinations thereof can be produced while the carrier sheet can be made, for example, from a commercially available structural steel or other suitable electrically conductive material.
  • the at least one sacrificial anode based on zinc, magnesium or aluminum or combinations thereof can be produced while the carrier sheet can be made, for example, from a commercially available structural steel or other suitable electrically conductive material.
  • Sacrificial anode mounted in the receptacle so that a gap between the sacrificial anode and the nozzle shell remains.
  • an advantageous flow around the sacrificial anode can also be achieved at the bottom by a self-adjusting re-circulation, which also with a
  • the nozzle according to the invention can be used both in conventional propeller systems with fixed ship propellers for watercraft of all kinds as well as rudder propellers, in which the ship's propeller is rotatably mounted about its vertical axis and directly control of the thus driven ship, including various types of water jet propulsion, for example those from Voith
  • Figure 1 is a perspective view of a rudder propeller with a
  • FIG. 2 the nozzle according to FIG.
  • FIG. 3 shows a section through the nozzle according to Figure 2 in enlarged
  • Rudder propeller shown comprising a rotatable about a rotation axis A by means of a drive, not shown, propeller 19.
  • the rudder propeller is rotatable about its vertical axis H for the purpose of controlling a vessel equipped with it.
  • the propeller blades 190 of the ship propeller 19 are enveloped by a nozzle 1, which extends along the axis of rotation A and a in
  • Ship propeller 19 enveloping nozzle shell 10, an inner surface 11 and an outer surface 12, which together form a wing-like
  • the inflowing in the direction of flow S water divides so far into a partial flow S1 within the nozzle 0 and a partial flow S2 outside the nozzle 10, wherein the boundary layers are guided to the nozzle 10 along the inner surface 11 and the outer surface.
  • Flow profile is designed to avoid flow losses along the inner and outer surfaces 10, 11 as smooth as possible.
  • Adjacent to the outlet opening 101 is in the region of the outer surface 12 of the nozzle shell 10 opposite to the airfoil along the
  • This receptacle 13 formed by the stepped shoulder is of a large number corresponding to the receptacle 13 and the receptacle 13 substantially filling
  • Occupy sacrificial anodes 2 which are shaped so that they not only substantially fill the receptacle 13 but the flow profile along the
  • Sacrificial anodes 2 is minimally affected.
  • the sacrificial anodes 2 are thus part of the airfoil in the region of the outer surface 12 of the
  • the sacrificial anodes 2 themselves are present in such a number that sets a volume or a mass, which for corrosion protection of the Ship propeller 19 comprehensive propulsion plant including the nozzle 1 has been calculated as sufficient.
  • each sacrificial anode 2 is connected to the nozzle casing 10 by means of fastening lugs 21 projecting on the nozzle jacket 0, e.g. by means of screw or welded connection and can therefore be easily assembled and replaced after consumption.
  • each sacrificial anode 2 can be fastened to the receptacle 13 on both sides via two fastening straps 21 positioned at an angle of 90 ° and associated screws.
  • each sacrificial anode 2 has been arranged leaving a gap to the nozzle shell 10, which adjusts a recirculation of the flowing water, which not only increases the flushing of the surface of the sacrificial anode 2, but also a cleaning effect on the surface the sacrificial anode 2 exercises.
  • the gap between sacrificial anode 2 and nozzle shell 10 can be optimized with respect to its gap width by being formed enlarged to the inlet opening 100 of the nozzle 1 out.
  • the sacrificial anodes 2 are made of a suitable metal, for example zinc, magnesium or aluminum or combinations thereof in one
  • Nozzle jacket 10 directed. It is also possible to use standard anodes in a size suitable for the receptacle 13.
  • Inlet opening 100 to arrange lying position. Further, if necessary, the free spaces between adjacent sacrificial anodes 2 can be closed with covers according to the desired flow profile or it can be a plurality of discrete recessed receptacles 13 are provided, in each of which a sacrificial anode 2 filling and the flow profile is inserted substantially smoothly continued. The receptacles 13 then resemble receiving pockets and become adjacent receptacles 13 respectively by webs of the
  • Nozzle jacket 10 limited, whereby a higher stability can be achieved.
  • the above-explained nozzle according to the invention is suitable both for the new production of a marine propulsion system and for the retrofitting of existing ship propellers and the replacement of existing nozzles on such a ship propeller.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Prevention Of Electric Corrosion (AREA)

Abstract

L'invention concerne une buse (1) d'une hélice (19) de navire pouvant tourner autour d'un axe de rotation (A). La buse présente une gaine (10) s'étendant le long de l'axe de rotation (A) et enveloppant l'hélice (19) de navire, la gaine étant pourvue d'une surface intérieure et d'une surface extérieure (11, 12), qui forment conjointement un profil d'écoulement, et au moins une anode sacrificielle (2) agencée sur la surface extérieure (12) de la gaine (10) de la buse. La surface extérieure (12) de la gaine (10) de la buse présente au moins un logement (13) renfoncé par rapport au profil d'écoulement et l'anode ou les anodes sacrificielles (2) sont formées de manière correspondante, de sorte qu'elles peuvent être insérées dans le logement (13) de manière à remplir sensiblement le logement (13).
PCT/EP2016/078956 2016-11-28 2016-11-28 Buse d'une hélice de navire Ceased WO2018095548A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
PCT/EP2016/078956 WO2018095548A1 (fr) 2016-11-28 2016-11-28 Buse d'une hélice de navire
RU2019120005A RU2722082C1 (ru) 2016-11-28 2016-11-28 Направляющая насадка гребного винта
CN201680091203.3A CN110023187B (zh) 2016-11-28 2016-11-28 船舶推进器的导流管
EP16801780.4A EP3544887B1 (fr) 2016-11-28 2016-11-28 Buse d'une hélice de navire
BR112019006498-2A BR112019006498B1 (pt) 2016-11-28 2016-11-28 Bocal de uma hélice de navio
CA3041179A CA3041179C (fr) 2016-11-28 2016-11-28 Buse d'une helice de navire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2016/078956 WO2018095548A1 (fr) 2016-11-28 2016-11-28 Buse d'une hélice de navire

Publications (1)

Publication Number Publication Date
WO2018095548A1 true WO2018095548A1 (fr) 2018-05-31

Family

ID=57406243

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/078956 Ceased WO2018095548A1 (fr) 2016-11-28 2016-11-28 Buse d'une hélice de navire

Country Status (6)

Country Link
EP (1) EP3544887B1 (fr)
CN (1) CN110023187B (fr)
BR (1) BR112019006498B1 (fr)
CA (1) CA3041179C (fr)
RU (1) RU2722082C1 (fr)
WO (1) WO2018095548A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115386883A (zh) * 2022-09-21 2022-11-25 广州船舶及海洋工程设计研究院（中国船舶工业集团公司第六0五研究院） 一种流道型船体牺牲阳极的安装结构

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020201417A1 (de) 2020-02-05 2021-08-05 kopter germany GmbH Rotorsystem für ein Fluggerät
CN111645838B (zh) * 2020-06-15 2021-04-06 中国船舶科学研究中心 导管桨支撑分区预旋导流装置
CN112124545A (zh) * 2020-10-13 2020-12-25 南京高精船用设备有限公司 一种可以提升水动力性能的吊舱推进器及其布置结构
CN113511322B (zh) * 2021-05-24 2025-08-01 江苏科技大学 基于多泥沙航道的无轴推进器防泥沙淤积装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5052962A (en) * 1990-05-21 1991-10-01 The United States Of America As Represented By The Secretary Of The Navy Naval electrochemical corrosion reducer
US7641526B1 (en) * 2008-09-09 2010-01-05 Thrustmaster of Texas, Inc. Vessel and underwater mountable azimuthing thruster
EP2592175A2 (fr) * 2011-11-11 2013-05-15 Rolls-Royce plc Anode sacrificielle
KR20140072390A (ko) * 2012-12-03 2014-06-13 삼성중공업 주식회사 선박용 추진장치 및 이를 갖춘 선박
EP3020851A1 (fr) * 2014-11-17 2016-05-18 Rolls-Royce plc Système de protection cathodique marin
CN104032308B (zh) * 2014-06-24 2016-06-01 中国船舶重工集团公司第七二五研究所 一种喷水推进器流道系统防腐防污集成控制方法

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SU1689213A1 (ru) * 1988-08-29 1991-11-07 Ленинградское высшее инженерное морское училище им.адм.С.О.Макарова Насадка гребного винта
US5342228A (en) * 1992-05-27 1994-08-30 Brunswick Corporation Marine drive anode
JP5064385B2 (ja) * 2005-07-05 2012-10-31 マリン プロパルション テクノロジーズ インコーポレイテッド 船舶用の複合ノズル・ベンチュリ・システム
EP2363674A1 (fr) * 2010-03-02 2011-09-07 Scheepswerf van de Giessen B.V. Échangeur de chaleur
CN104648638B (zh) * 2015-02-11 2016-11-02 江苏科技大学 一种深海仿生耐压壳体

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5052962A (en) * 1990-05-21 1991-10-01 The United States Of America As Represented By The Secretary Of The Navy Naval electrochemical corrosion reducer
US7641526B1 (en) * 2008-09-09 2010-01-05 Thrustmaster of Texas, Inc. Vessel and underwater mountable azimuthing thruster
EP2592175A2 (fr) * 2011-11-11 2013-05-15 Rolls-Royce plc Anode sacrificielle
KR20140072390A (ko) * 2012-12-03 2014-06-13 삼성중공업 주식회사 선박용 추진장치 및 이를 갖춘 선박
CN104032308B (zh) * 2014-06-24 2016-06-01 中国船舶重工集团公司第七二五研究所 一种喷水推进器流道系统防腐防污集成控制方法
EP3020851A1 (fr) * 2014-11-17 2016-05-18 Rolls-Royce plc Système de protection cathodique marin

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115386883A (zh) * 2022-09-21 2022-11-25 广州船舶及海洋工程设计研究院（中国船舶工业集团公司第六0五研究院） 一种流道型船体牺牲阳极的安装结构
CN115386883B (zh) * 2022-09-21 2024-03-01 广州船舶及海洋工程设计研究院(中国船舶集团有限公司第六〇五研究院) 一种流道型船体牺牲阳极的安装结构

Also Published As

Publication number Publication date
CN110023187A (zh) 2019-07-16
RU2722082C1 (ru) 2020-05-26
EP3544887A1 (fr) 2019-10-02
CN110023187B (zh) 2021-06-15
EP3544887B1 (fr) 2021-05-05
BR112019006498B1 (pt) 2023-05-09
BR112019006498A2 (pt) 2019-06-25
CA3041179A1 (fr) 2018-05-31
CA3041179C (fr) 2023-05-09

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