JPS60121196A - Air jet device for side thruster - Google Patents

Air jet device for side thruster

Info

Publication number
JPS60121196A
JPS60121196A JP22788583A JP22788583A JPS60121196A JP S60121196 A JPS60121196 A JP S60121196A JP 22788583 A JP22788583 A JP 22788583A JP 22788583 A JP22788583 A JP 22788583A JP S60121196 A JPS60121196 A JP S60121196A
Authority
JP
Japan
Prior art keywords
air
side thruster
air duct
pipe
seawater
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.)
Granted
Application number
JP22788583A
Other languages
Japanese (ja)
Other versions
JPH0370679B2 (en
Inventor
Keizo Terada
寺田 敬三
Minoru Yoshida
穣 吉田
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.)
NAKASHIMA SUTON VICKERS KK
Mitsubishi Heavy Industries Ltd
Original Assignee
NAKASHIMA SUTON VICKERS KK
Mitsubishi Heavy Industries Ltd
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 NAKASHIMA SUTON VICKERS KK, Mitsubishi Heavy Industries Ltd filed Critical NAKASHIMA SUTON VICKERS KK
Priority to JP22788583A priority Critical patent/JPS60121196A/en
Publication of JPS60121196A publication Critical patent/JPS60121196A/en
Publication of JPH0370679B2 publication Critical patent/JPH0370679B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H25/00Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/46Steering or dynamic anchoring by jets or by rudders carrying jets

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE:To keep off any corrosion inside an air duct as well as to prevent oceanic life from sticking to the inside, by connecting a chemical fluid injection pipe to the air duct of an air jet device for a side thruster. CONSTITUTION:Each air duct 4 jetting compressed air is set up inside a side thruster tunnel 1a. Each of these air ducts 4 is provided with an air jetting port 14 for jetting air to the inside of the side thruster tunnel 1a. In order to keep off corrosion and a stain inside these air ducts 4, a compressed air branch pipe 19' is connected to a seawater pipe 21 via a branch pipe 21' branched off the seawater pipe 21' serving as a chemical fluid injection pipe and a valve 12. Likewise, the seawater pipe 21 is interconnected to each of chemical fluid injectors 7 and 8 via a chemical fluid injection nozzle 9. With operation in a timer, seawater being mixed with a chemical agent is injected into the inside of each air duct 4 at every given time via a valve 10, thus corrosion in these air duct 4 and the sticking of oceanic life are kept back.

Description

【発明の詳細な説明】 本発明は、船舶のサイドスラスタに設けられた空気噴出
装置に関し、特にその腐食および汚損の防止をはかった
空気噴出装置に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air blowing device provided in a side thruster of a ship, and more particularly to an air blowing device that is designed to prevent corrosion and staining thereof.

一般に船舶のサイドスラスタは、船舶の船首部(あるい
は船尾部)において船幅方向に形成されたサイドスラス
タトンネルと、このサイドスラスタトンネル内に装着さ
れたインペラと、インペラ駆動機構等から構成されてお
り、上記インペラを回転駆動させることによって船舶に
横推力が与えられるようになっている。
In general, a ship's side thruster consists of a side thruster tunnel formed in the ship's width direction at the bow (or stern) of the ship, an impeller installed in the side thruster tunnel, and an impeller drive mechanism. By rotating the impeller, lateral thrust is applied to the vessel.

ところが、このようなサイドスラスタでは、サイドスラ
スタトンネル内部でインペラにより加速された水流が、
騒音(キャビテーションノイズ)を発生させ、また船体
振動を引き起こすという弊害が生じる。
However, in such a side thruster, the water flow accelerated by the impeller inside the side thruster tunnel is
This has the disadvantage of generating noise (cavitation noise) and causing hull vibration.

このため従来より、サイドスラスタへ空気噴出装置を付
設し、サイドスラスタトンネル内へ圧縮空気を噴出させ
て、その圧縮空気の微粒子により騒音・振動を緩衝させ
ることが行なわれており、騒音・振動の低減に十分な効
果を」二げている。
For this reason, the conventional practice has been to attach an air blowing device to the side thruster and blow compressed air into the side thruster tunnel, and use fine particles of the compressed air to buffer the noise and vibration. It has been shown to have a sufficient effect in reducing

この空気噴出装置は、サイドスラスタのインペラをはさ
んだ対称位置において、サイドスラスタトンネルの外周
を取囲むようにそれぞれ配設された左右1対の空気ダク
トと、これらの空気ダクトに圧縮空気を供給する弁を介
挿された圧縮空気管と、空気ダクトからサイドスラスタ
トンネル内へ開口する複数の噴出孔等から構成されてお
り、上記の弁を切換えることによって左右いずれか一方
の空気ダクトへ圧縮空電が導かれ、噴出孔よりサイドス
ラスタトンネル内へ圧縮空気の微粒子が噴出されるよう
tこなっている。
This air blowing device supplies compressed air to a pair of left and right air ducts that are arranged around the outer periphery of the side thruster tunnel at symmetrical positions across the side thruster impeller, and to these air ducts. It consists of a compressed air pipe with a valve inserted, and multiple ejection holes that open from the air duct into the side thruster tunnel. By switching the above valve, compressed static electricity can be sent to either the left or right air duct. is guided so that fine particles of compressed air are ejected from the ejection holes into the side thruster tunnel.

しかしながら、このような従来の空気噴出装置では、そ
の空気ダクトは内部が海水または海水と空気との混合体
で満たされているので、極めて腐食されやすい環境状態
−二あ1)、また、海洋生物の刊羞歳艮等により噴出孔
がつまって圧縮空気の噴出に支障が生じる危険性もある
However, in such conventional air blowing devices, the air duct is filled with seawater or a mixture of seawater and air, so the environment is extremely susceptible to corrosion - 2-1) and marine life. There is also a risk that the air outlet may become clogged due to air pollution, which may interfere with the ejection of compressed air.

本発明は、このような実情に鑑み、腐食および海洋生物
の付着成長等による汚損を防止し得るようにして、長期
間にわたって確実に騒音・振動を低減できるようにした
、サイドスラスタ用空気噴出装置を提供することを目的
とする。
In view of these circumstances, the present invention provides an air blowing device for a side thruster that is capable of preventing corrosion and contamination due to attached growth of marine organisms, and reliably reducing noise and vibration over a long period of time. The purpose is to provide

このため本発明のサイドスラスタ用空気噴出装置は、船
舶におけるサイドスラスタのサイドスラスタトンネル内
へ圧縮空気を噴出させるべく、同サイドスラスタトンネ
ルの外周を取囲むように配設された空気ダクトと、同空
気ダクトから上記サイドスラスタトンネル内に開口する
複数の噴出孔とをそなえ、上記空気ダクト内の腐食およ
び汚損を防止すべく、同空気ダクトに薬液注入管が接続
されたことを特徴としている。
Therefore, in order to blow out compressed air into the side thruster tunnel of a side thruster in a ship, the air jetting device for a side thruster of the present invention has an air duct arranged to surround the outer periphery of the side thruster tunnel of the side thruster in a ship. It is characterized in that it has a plurality of ejection holes opening from the air duct into the side thruster tunnel, and a chemical liquid injection pipe is connected to the air duct in order to prevent corrosion and contamination within the air duct.

以下図面により、本発明の実施例について説明すると、
第1図は本発明の第1実施例としてのサイドスラスタ用
空気噴出装置の全体構成およびサイドスラスタのi@面
を示す俣弐図、第2図は第1図の■−■矢視図、tIS
3図は本発明の第2実施例としてのサイドスラスタ用空
気噴出装置の主要部分を示す俣弐図である。
Examples of the present invention will be described below with reference to the drawings.
FIG. 1 is a two-dimensional diagram showing the overall configuration of an air jet device for a side thruster and the i@ plane of the side thruster as a first embodiment of the present invention, and FIG. 2 is a view taken along the ■-■ arrow in FIG. tIS
FIG. 3 is a cross-sectional view showing the main parts of an air blowing device for a side thruster according to a second embodiment of the present invention.

まず、本発明の第1実施例について説明すると、船舶の
船首部20で船幅方向に形成されたサイドスラスタトン
ネル1aと、サイドスラスタトンネルb着されてサイド
スラスタ駆動装置2により駆動されるインペラ1b等か
ら成るサイドスラスタ1において、そのサイドスラスタ
トンネル1a内へ圧縮空気を噴出させるべく、インペラ
1bをはさんだ左右両側でサイドスラスタトンネル1a
の外周を取囲むように1対の空気ダクト4.4が配設さ
れるとともに、これらの空気ダクト4.4からサイドス
ラスタトンネル1a内に開口する複数の噴出孔14が設
けられている。
First, a first embodiment of the present invention will be described. A side thruster tunnel 1a is formed in the bow section 20 of the ship in the width direction of the ship, and an impeller 1b attached to the side thruster tunnel b and driven by the side thruster drive device 2. In the side thruster 1, which is made up of a
A pair of air ducts 4.4 are disposed so as to surround the outer periphery of the side thruster tunnel 1a, and a plurality of ejection holes 14 are provided that open from these air ducts 4.4 into the side thruster tunnel 1a.

そして、減圧弁ユニット5′を付設された圧縮空気溜5
が、圧縮空気管19を介して空気グクト4,4にそれぞ
れ連通されている。第1図に示すように圧縮空気管19
は途中で空気グクト4,4へそれぞれ通じる支管19’
 、19’に分岐しており、支管19’、19’へは制
御弁6,6および調節弁13.13がそれぞれ介挿され
ている。
A compressed air reservoir 5 equipped with a pressure reducing valve unit 5'
are connected to the air pipes 4, 4 via compressed air pipes 19, respectively. Compressed air pipe 19 as shown in FIG.
On the way, there are branch pipes 19' that lead to air gutters 4 and 4, respectively.
, 19', and control valves 6, 6 and regulating valves 13, 13 are inserted into the branch pipes 19', 19', respectively.

制御弁6,6は、制御装置3により制御されて、サイド
スラスタ1の作動状態により、どちらか−力のみが開と
されるようになっている。なお、第1図の破線で示した
ように、制御装置3はサイドスラスタ駆動装置2の制御
も行なうようになっている。
The control valves 6, 6 are controlled by the control device 3 so that only one of them is opened depending on the operating state of the side thruster 1. Note that, as indicated by the broken line in FIG. 1, the control device 3 also controls the side thruster drive device 2.

そして、空気ダクト4,4内の腐食および汚損を防止す
べく、圧縮空気支管19’、19’へは、薬液注水管と
しての海水管21から分岐した支管21’ 、21’が
それぞれ海水止め弁12.12を介して接続されている
In order to prevent corrosion and contamination in the air ducts 4, 4, branch pipes 21', 21' branched from a sea water pipe 21 serving as a chemical water injection pipe are connected to the compressed air branch pipes 19', 19' with sea water stop valves, respectively. 12.12.

海水管21は、途中に海水注入用制御弁10が介挿され
るととも1こ、薬剤注入ノズル9,9を介して防食用薬
剤注入装置7および海洋生物付着防止用薬剤注入装置8
が連通されている。
A control valve 10 for seawater injection is inserted in the seawater pipe 21, and a chemical injection device 7 for preventing corrosion and a chemical injection device 8 for preventing the adhesion of marine organisms are connected to the seawater pipe 21 through chemical injection nozzles 9, 9.
are being communicated.

これらの薬剤注入装置マ、8は、薬剤を貯えるタンクと
、薬剤の注入を行なう注入ポンプ等からなっている。
These drug injection devices 8 are comprised of a tank for storing drugs, an injection pump for injecting drugs, and the like.

さらに本実施例では、制御弁1oは、制御装置11内−
二組み込まれすこタイマーの作動lこよI)ある一定時
Im毎にあらがしめ定められた時間だけ開弁じ、通水す
るようになっており、また、制御装置11は、制御弁1
゜の開弁度を検知して上記の注入ポンプの運転制御を行
なうようになっており、所定の濃度の薬剤が海水中に混
入されて、空気ダクト4.4内に注入されるようになっ
ている。
Furthermore, in this embodiment, the control valve 1o is located within the control device 11.
2) Operation of a built-in timer I) The valve is opened and water is allowed to flow for a predetermined period of time every certain period of time, and the control device 11 controls the control valve 1
The operation of the above-mentioned injection pump is controlled by detecting the opening degree of the valve, and the drug at a predetermined concentration is mixed into the seawater and injected into the air duct 4.4. ing.

上述の構成により、空気ダクト4,4内へは腐食を防止
しうる薬剤および海洋生物の付着成長を防止し得る薬剤
が必要に応じて注入されるので、空気ダクト4゜4が保
護されて噴出孔14がつまることも防止されるので、サ
イドスラスタトンネル1a内への圧縮空気噴出が長期間
にわたって確実に行なえるよ)になり、騒音・振動低減
効果が持続されるのである。
With the above-described configuration, a chemical that can prevent corrosion and a chemical that can prevent the attachment and growth of marine organisms is injected into the air ducts 4, 4 as necessary, so that the air ducts 4, 4 are protected and the air does not blow out. Since the holes 14 are also prevented from clogging, compressed air can be reliably ejected into the side thruster tunnel 1a for a long period of time, and the noise and vibration reduction effect is maintained.

また、薬剤の注入は、制御装置11により自動的にタイ
ムフントロールされて、一定時間毎に必要量だけ行なわ
れるようになっており、主た、海水管に注入されて希釈
された薬液の濃度も制御されるようになっているので、
薬剤を有効に使用できるのである。
In addition, the injection of the drug is automatically time controlled by the control device 11 so that only the required amount is injected at fixed intervals, and the concentration of the diluted drug solution injected into the seawater pipe is mainly controlled. is also controlled, so
This allows drugs to be used effectively.

第3図に示した本発明の第2実施例では、薬剤として、
電解槽17内で防食用電解電極棒15および海洋生物何
着防止用電解電極棒16により電解されたイオンや防食
被膜用粒子が用いられている。
In the second embodiment of the present invention shown in FIG.
Ions and particles for an anti-corrosion coating are used which are electrolyzed in the electrolytic tank 17 by an electrolytic electrode rod 15 for corrosion protection and an electrolytic electrode rod 16 for preventing damage to marine organisms.

そして、電極棒15,16による電解および制御弁10
の制御を行なって、電解のタイムフンYロール電解質濃
度の調節を行なう制御装置18が設けられている。
Electrolysis and control valve 10 by electrode rods 15 and 16
A control device 18 is provided for controlling the electrolyte concentration and adjusting the electrolyte concentration.

第2実施例1こよっても、前述の第1実施例の場合とほ
ぼ同様の作用および効果が得られる。
The second embodiment 1 also provides substantially the same functions and effects as those of the first embodiment described above.

以上詳述しr−ように、本発明のサイドスラスタ用空気
噴出装置によれば、船舶におけるサイドスラスタのサイ
ドスラスタトンネル内へ圧縮空気を噴出させるべく、同
サイドスラスタトンネルの外周を取囲むように配設され
た空気ダクトと、同空気ダクトから上記サイドスラスタ
トンネル内に開口する複数の噴出孔とをそなえ、上記空
気ダクト内の腐食および汚損を防止すべく、同空気ダク
トに薬液注入管が接続されるという極めて簡素な構成で
、空気ダクト内の腐食および海洋生物の付着成長等によ
る汚損が防止されるようになるので、サイドスラスタト
ンネル内の圧縮空気噴出に支障が生しることはなくなり
、サイドスラスタが発生する騒音・振動を低減する敗北
が長期にわたって持続され゛・る効果がある。
As described in detail above, according to the side thruster air blowing device of the present invention, in order to blow compressed air into the side thruster tunnel of a side thruster in a ship, the air blowing device surrounds the outer periphery of the side thruster tunnel of the side thruster in a ship. The air duct is equipped with a plurality of injection holes that open from the air duct into the side thruster tunnel, and a chemical injection pipe is connected to the air duct in order to prevent corrosion and contamination within the air duct. This extremely simple configuration prevents corrosion inside the air duct and contamination due to attached growth of marine organisms, so there is no problem with compressed air jetting inside the side thruster tunnel. The effect of reducing the noise and vibration generated by the side thrusters is sustained over a long period of time.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の第1実施例としてのサイドスラスタ用
空気噴出装置の全体構成およびサイドスラスタの縦断面
を示す模式図、第2図は第1図の■−■矢視図、13図
は本発明の第2実施例としてのサイドスラスタ用空気噴
出装置の主要部分を示す模式図である。 1・・サイドスラスタ、1a・・サイドスラスタトンネ
ル、1b・・インペラ、2・・サイドスラスタ駆動装置
、3・・制御装置、4・・空気ダクト、5・・圧縮空気
溜、5′ ・・減圧弁ユニット、6・・制御弁、7・・
防食用薬剤注入装置、8・・海洋生物付着防止用薬剤注
入装置、9・・薬剤注入ノズル、10・・海水注入用制
御弁、11・・制御装置、12・・海水止め弁、13・
・調節弁、14・・噴出孔、15・・防食用電解電極棒
、16・・海洋生物111着防止用電解電極棒、17・
・電解槽、18・・制御装置、19・・圧縮空気管、1
9′ ・・圧縮空気支管、20−・船首部、21・・海
水管、21′ ・・海水管支管。 復代理人 弁理士 飯 沼 義 彦
FIG. 1 is a schematic diagram showing the overall configuration of an air jet device for a side thruster and a longitudinal section of the side thruster as a first embodiment of the present invention, FIG. 2 is a view taken along the ■-■ arrow in FIG. 1, and FIG. 13 FIG. 2 is a schematic diagram showing the main parts of an air jet device for a side thruster as a second embodiment of the present invention. 1... Side thruster, 1a... Side thruster tunnel, 1b... Impeller, 2... Side thruster drive device, 3... Control device, 4... Air duct, 5... Compressed air reservoir, 5'... Depressurization Valve unit, 6... Control valve, 7...
Anti-corrosion chemical injection device, 8. Chemical injection device for marine organism adhesion prevention, 9. Chemical injection nozzle, 10. Control valve for seawater injection, 11. Control device, 12. Seawater stop valve, 13.
・Control valve, 14・・Blowout hole, 15・・Electrolytic electrode rod for anticorrosion, 16・・Electrolytic electrode rod for preventing corrosion of marine life 111, 17・
- Electrolytic cell, 18... Control device, 19... Compressed air pipe, 1
9'...Compressed air branch pipe, 20--Fore part, 21--Sea water pipe, 21'...Sea water pipe branch pipe. Sub-Agent Patent Attorney Yoshihiko Iinuma

Claims (1)

【特許請求の範囲】[Claims] 船舶におけるサイドスラスタのサイドスラスタトンネル
内へ圧縮空気を噴出させるべく、同すイド久ラスタトン
ネルの外周を取囲むように配設された空気ダクトと、同
空気ダクトから上記サイドスラスタトンネル内に開口す
る複数の噴出孔とをそなえ、」1記空気ダクト内の腐食
および汚損を防止すべく、同空気ダクトに薬液注入管が
接続されたことを特徴とする、サイドスラスタ1空気噴
出装置。
In order to blow out compressed air into the side thruster tunnel of a side thruster in a ship, an air duct is arranged to surround the outer periphery of the Idoku raster tunnel, and the air duct opens into the side thruster tunnel. 1. A side thruster 1 air ejection device, comprising a plurality of ejection holes, and a chemical liquid injection pipe is connected to the air duct to prevent corrosion and contamination within the air duct.
JP22788583A 1983-12-02 1983-12-02 Air jet device for side thruster Granted JPS60121196A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22788583A JPS60121196A (en) 1983-12-02 1983-12-02 Air jet device for side thruster

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22788583A JPS60121196A (en) 1983-12-02 1983-12-02 Air jet device for side thruster

Publications (2)

Publication Number Publication Date
JPS60121196A true JPS60121196A (en) 1985-06-28
JPH0370679B2 JPH0370679B2 (en) 1991-11-08

Family

ID=16867856

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22788583A Granted JPS60121196A (en) 1983-12-02 1983-12-02 Air jet device for side thruster

Country Status (1)

Country Link
JP (1) JPS60121196A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101315526B1 (en) * 2008-10-01 2013-10-08 니혼 프스네스 컴퍼니 리미티드 Vessel with side thruster
KR20140052615A (en) * 2012-10-25 2014-05-07 대우조선해양 주식회사 Side thruster of vessels

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49110096A (en) * 1973-02-01 1974-10-19
JPS5215595U (en) * 1975-07-21 1977-02-03

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49110096A (en) * 1973-02-01 1974-10-19
JPS5215595U (en) * 1975-07-21 1977-02-03

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101315526B1 (en) * 2008-10-01 2013-10-08 니혼 프스네스 컴퍼니 리미티드 Vessel with side thruster
KR20140052615A (en) * 2012-10-25 2014-05-07 대우조선해양 주식회사 Side thruster of vessels

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