KR0180705B1 - Device for corrosion protection of shaft tube seal - Google Patents

Device for corrosion protection of shaft tube seal Download PDF

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Publication number
KR0180705B1
KR0180705B1 KR1019900014418A KR900014418A KR0180705B1 KR 0180705 B1 KR0180705 B1 KR 0180705B1 KR 1019900014418 A KR1019900014418 A KR 1019900014418A KR 900014418 A KR900014418 A KR 900014418A KR 0180705 B1 KR0180705 B1 KR 0180705B1
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South Korea
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sacrificial anode
casing
propeller
bush
fixing flange
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KR1019900014418A
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Korean (ko)
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KR920006542A (en
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피취 귄터
본 베르겐 에른스트-페터
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뢰쉬만 ; 워데
블롬+포스 인두스트리 게엠베하
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    • 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
    • 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
    • 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

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

Abstract

본 발명은 전해액, 특히 해수중에 잠긴 예컨대 선박의 선미관 시일링의 외측면을 음극 방식하는 장치에 관한 것으로써 희생 양극(8), 희생 양극을 포위하는 케이싱(10) 및 립 형상(10.1)의 돌기부(10.1) 이루어진다. 희생 양극(8)은 계합 결합에 의해 지지 구조에 취부되므로 희생 양극을 부식시키는 작용을 하는 나사 결합을 전혀 사용치 않는다.The present invention relates to a device for cathodic protection of the outer surface of an stern tube sealing of a vessel, for example submerged in seawater, in which the sacrificial anode 8, the casing 10 surrounding the sacrificial anode and the lip shape 10.1 are provided. The protrusion 10.1 is made. The sacrificial anode 8 is mounted to the support structure by engagement coupling and therefore does not use any screw coupling which acts to corrode the sacrificial anode.

Description

선박의 프로펠라 축을 지지하는 부시에 대한 시일링 하우징의 음극 방식 장치Cathodic device of sealing housing against bush supporting propeller shaft of ship

제1도는 본 발명의 실시예의 개략적 종단면도.1 is a schematic longitudinal cross-sectional view of an embodiment of the invention.

* 도면의 주요부부에 대한 부호의 설명* Explanation of symbols on the main parts of the drawings

1 : 프로펠라 축 2 : 부시1: propeller shaft 2: bush

3 : 플로펠라 6 : 고정 플랜지3: floppella 6: fixed flange

7 : 패킹 8 : 희생 양극7: packing 8: sacrificial anode

10 : 케이싱10: casing

[발명의 분야][Field of Invention]

본 발명은, 선박의 프로펠라 축을 지지하는 부시의 주위를 포위하는 시일링 하우징의 외측면을 음극 방식하는 장치에 관한 것으로, 부시의 프로펠라에 대한 고정 플랜지에 설치된 적어도 하나의 희생 양극(犧牲 陽極)을 구비한 장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a device for cathodic sealing the outer surface of a sealing housing surrounding a bush supporting a propeller shaft of a ship, wherein the at least one sacrificial anode is provided on a fixing flange to the propeller of the bush. It is related with the provided apparatus.

종래의 음극 방식 장치, 예를들면, 독일연방공화국 공개 특허 제 2,520,948 호에 기재된 장치에 있어서는, 복수개의 희생 양극 블럭재가, 선박의 프로펠라 축을 지지하는 부시의 프로펠라에 대한 고정 플랜지에 볼트에 의해 설치되어 있다. 또한, 미국 특허 제 3,726,779 호에 기재된 장치에서는, 희생 양극 어셈블리가, 선박의 프로펠라 축에 대한 베어링의 지주의 양측에 배치되어, 희생 양극 어셈블리 및 지주를 관통하는 볼트를 단단히 조임으로써 지주에 설치되어 있다.In a conventional cathodic apparatus, for example, the apparatus described in JP 2,520,948, a plurality of sacrificial anode block members are provided by bolts on a fixing flange of a bush propeller supporting a propeller shaft of a ship. have. Further, in the apparatus described in US Pat. No. 3,726,779, the sacrificial anode assembly is disposed on both sides of the support of the bearing with respect to the propeller shaft of the ship, and is installed in the support by tightening the bolts through the sacrificial anode assembly and the support. .

이러한 구성에 따르면, (그 자체 의도된) 희생 양극의 부식이 희생 양극과 접촉하는 볼토의 머리 부분에서도 야기됨으로써, 희생 양극의 고정 플랜지와 지주에 대한 볼트 결합이 약해져서, 음극 방식 작용의 기간이 상대적으로 짧아진다.According to this configuration, the corrosion of the sacrificial anode (which is intended by itself) also occurs in the head portion of the boltto which is in contact with the sacrificial anode, thereby weakening the bolt coupling to the anchoring flange and the support of the sacrificial anode, so that the period of cathodic action is relatively Shorten.

즉, 희생 양극은, 고정 플랜지 또는 지주의 운동과 함께 흔들리게 되어, 경우에 따라서는 불가피하게 발생하는 진동에 의해 부하를 받아, 부서져서 탈락허가나 또는 쪼개져서 탈락하고 만다. 따라서, 음극 방식은 이미, 희생 양긍의 자연 소모하는 시간보다도 짧은 시간까지 밖에 이우러지지 않으며, 희생 양극의 수명이 단축되고 말게 된다.That is, the sacrificial anode is shaken together with the movement of the fixing flange or the strut, and in some cases is subjected to a load due to the inevitable vibration, which is broken and allowed to fall off or split off. Therefore, the cathode method is already achieved only for a time shorter than the natural consumption time of the sacrificial positive, and the life of the sacrificial anode is shortened.

따라서, 본 발명의 목적은 희생 양극의 지지구조의 설치방법을 개선하여, 희생 양극에 의한 음극 방식 작용이 장시간 이루어지도록 하는 것이다.Therefore, it is an object of the present invention to improve the installation method of the supporting structure of the sacrificial anode, so that the cathodic anticorrosion action by the sacrificial anode is made for a long time.

[발명의 구성 및 효과]Composition and Effects of the Invention

이러한 목적은, 본 발명에 기초하여, 선박의 프로펠라 축을 지지하는 부시의 주위를 포위하는 시일링 하우징의 외측면을 음극 방식하는 장치로서, 부시의 프로펠라에 대한 고정 플랜지에 설치된 적어도 1개의 희생 양극에 구비한 장치에 있어서, 희생 양극을 대체로 역 U자형의 단면을 지니는 케이싱의 요부(凹部)에 보지하고, 케이싱에서의 역 U자혀의 다리부분(leg portion)을 형성하는 측벽에 설치된 하방으로 연장하는 설편상 연장부분(tongue-shaped extension)을, 고정 플랜지와 프로펠라 사이에 끼워 지지함으로써, 희생 양극을 고정 플랜지에 설치하는 것을 특징으로 하는 장치를 구성함으로써 해결된다.This object is, according to the present invention, a device for cathodic the outer surface of a sealing housing surrounding a bush supporting a propeller shaft of a ship, comprising at least one sacrificial anode installed in a fixing flange to the propeller of the bush. In the provided device, the sacrificial anode is held in the recessed portion of the casing having an inverted U-shaped cross section, and extends downwardly provided on a side wall forming a leg portion of the inverted U-shaped tongue in the casing. It is solved by constructing an apparatus characterized in that the sacrificial anode is mounted on the stationary flange by holding a tongue-shaped extension between the stationary flange and the propeller.

상기의 구성에 있어서, 바람직하게는, 프로펠리와 케이싱 사이에 내염수서(solt water resistance)을 지니며 전기 절연성을 지닌 재료로 형성된 패킹이 배치된다.In the above arrangement, a packing, preferably formed of a material having a salt water resistance and an electrically insulating property, is disposed between the propelli and the casing.

본 발명에 따르면, 희생 양극은, 외부의 해수에 대하여 노출되는 부분만이 해수의 영향을 받으며, 키이싱에 의해 포위된 부분은 보호된다. 그리고, 희생 양극과 케이싱은 밀착상태로 접촉하고 있으므로, 희생 양극과 케이싱과의 접촉면 사이에의 해수의 침입이 방지되며, 희생 양극이 그 접촉면으로부터 부식되지 않고, 또한 고정 플랜지에 희생 양극의 설치는, 케이싱의 설편상 연장부분을 고정 플랜지와 프로펠라 사이에 끼워 지지함으로써 이루어진다. 이와같이, 고정 플랜지에 희생 양극의 설치는, 희생 양극을 직접 부식시켜 버리는 볼트 결합에 의하지 않고, 맞물림 결합에 의해 이루어지기 때문에, 희생 양극이 이완된다거나 혹은 쪼개져 탈락하는 것이 방지된다. 그 이유는, 맞물림 결합시에 상호 작용하는 표면이 희생 양극에 확실히 인접함으로써, 전해액의 침입이 방지되어 희생 양극이 부식으로부터 보호되기 때문이다.According to the present invention, in the sacrificial anode, only the portion exposed to the external seawater is affected by the seawater, and the portion surrounded by the chasing is protected. Since the sacrificial anode and the casing are in intimate contact, the intrusion of seawater between the sacrificial anode and the casing contact surface is prevented, and the sacrificial anode is not corroded from the contact surface, and the installation of the sacrificial anode on the fixing flange And by securing the tongue-like extension of the casing between the fixing flange and the propeller. In this way, the sacrificial anodes are attached to the fixing flanges by engagement, not by bolting, which directly corrodes the sacrificial anodes, so that the sacrificial anodes are prevented from being relaxed or broken off. The reason for this is that the surface interacting at the time of engagement engagement is surely adjacent to the sacrificial anode, thereby preventing the penetration of the electrolyte solution and protecting the sacrificial anode from corrosion.

도면은 본 발명의 실시예의 개략적인 종단면도를 도시한 것이다.The figure shows a schematic longitudinal cross-sectional view of an embodiment of the invention.

프로펠라 축(1)이 부시(2)에 지지되어 있다. 이 부식(2)는 그 해수측에 면한 단부에 통상의 고정 플랜지(6)를 가지고 있다. 또한, 이 고정 플랜지(6)에는 프로펠라(3)가 도시되지 않은 고정 수단에 의해 고정되어 있다.The propeller shaft 1 is supported by the bush 2. This corrosion 2 has the usual fixing flange 6 at the edge part facing the sea-water side. In addition, the propeller 3 is fixed to this fixing flange 6 by the fixing means which is not shown in figure.

프로펠라 축(1)은 선수(船首 ; 배의 머리부분)측 베어링(4)내의 도시되지 않은 베어링 부시내에 지지되어 있다.The propeller shaft 1 is supported in a bearing bush not shown in the bearing 4 on the bow side.

또한, 시일링 하우징(5)이 부식(2)를 포위하여 배치되어 있다. 이 실시예에서, 시일링 하우징(5)은 4개의 하우징 링(5.1 ; 5,2 ; 5.3 ; 5.4)으로 구성되어 있고, 각 하우징 링 사이에는 각각 탄성을 가지는 립 패킹(9.1 ; 9,2 ; 9,3)이 배치되어 있다.In addition, the sealing housing 5 is arrange | positioned surrounding the corrosion 2. In this embodiment, the sealing housing 5 consists of four housing rings (5.1; 5, 2; 5.3; 5.4), each having an elastic lip packing (9.1; 9, 2; 9,3) are arranged.

본 발명에 따른 장치는, 대체로 역 U자형 단면을 갖는 케이싱(10)을 지니고 있다. 케이싱(10)의 요부에는, 희생 양극(8)이 보지되어 있다. 이 경우, 희생 양극(8)과 케이싱(10)의 요부의 내벽은, 시일된 상태로 결합되어 있다. 케이싱(10)에서의 역U자형의 한쪽의 다리부분을 형성하는 측벽에는, 하방으로 연장하는 설편상 연장부분(10,1)이 설치되어 있다.The device according to the invention has a casing 10 having a generally inverted U-shaped cross section. The sacrificial anode 8 is held in the main portion of the casing 10. In this case, the sacrificial anode 8 and the inner wall of the recessed portion of the casing 10 are joined in a sealed state. On the side wall which forms one leg part of the inverted U shape in the casing 10, the tongue-like extension part 10 and 1 extended downward are provided.

케이싱(10)의 설편상 연장부분(10.1)은, 부시(2)의 고정 플랜지(6)와 프로펠라(3)와의 사이에 끼워 지지되며, 그에따라, 희생 양극(8)이 고정 플랜지(6)에 설치되어 있다.The tongue-like extension 10.1 of the casing 10 is sandwiched between the fixing flange 6 of the bush 2 and the propeller 3, whereby the sacrificial anode 8 is fixed to the fixing flange 6. Installed in

또한, 본 실시예에서는, 케이싱(10)과 프로펠라(3) 사이에, 내염수성을 지니며, 상기 절연성을 지닌 재료로 형성된 패킹(7)이 설치되어 있다.In this embodiment, a packing 7 is formed between the casing 10 and the propeller 3 and has a salt water resistance and is formed of the above insulating material.

이와같이, 본 발명에 따른 음극 방식 장치에 의하면, 희생 양극(8)은 해수에 대하여 노출되는 부분만이 해수의 영향을 받으며, 케이싱(10)에 의해 포위된 부분은 보호된다. 그리고, 희생 양극(8)과 케이싱(10)은 밀착한 상태로 접촉하여 있으므로, 희생 양극(8)과 케이싱(10)과의 접촉면 사이에로의 해수의 침입이 방지되며, 희생 양극(8)은 이 접촉면으로부터 부식되지 않는다. 또한, 고정 플랜지(6)에 희생 양극(8)의 설치는, 희생 양극(8)을 직접 부식시켜버리는 볼트 결합에 의하지 않고, 순전한 맞물림 결합에 의해 이루어짐으로써, 희생 양극이 이완된다거나 혹은 쪼개져 탈락하는 것이 방지되며, 희생 양극(8)에 의한 시일링 하우징(5)의 외측면에 대한 음극 방식 작용이 장시간 이루어진다.As described above, according to the cathode-type device according to the present invention, the sacrificial anode 8 is only exposed to the seawater under the influence of the seawater, and the portion surrounded by the casing 10 is protected. Since the sacrificial anode 8 and the casing 10 are in intimate contact with each other, intrusion of seawater into the contact surface between the sacrificial anode 8 and the casing 10 is prevented, and the sacrificial anode 8 is prevented. Does not corrode from this contact surface. In addition, the sacrificial anode 8 is attached to the fixing flange 6 by a pure engagement engagement, not by bolting, which directly corrodes the sacrificial anode 8, whereby the sacrificial anode 8 is loosened or split. Falling off is prevented, and the negative anticorrosive action on the outer surface of the sealing housing 5 by the sacrificial anode 8 takes place for a long time.

Claims (2)

선박의 프로펠라 축(1)을 지지하는 부시(2)의 주위를 포위하는 시일링 하우징(5)의 외측면을 음극 방식하는 장치로서, 상기 부시(2)의 프로펠라(3)에 대한 고정 플랜지(6)에 설치된 적어도 1개의 희생 양극(8)에 구비한 장치에 있어서, 희생 양극(8)을 대체로 역 U자형의 단면을 지니는 케이싱(10)의 요부에 보지하고, 케이싱(10)에서의 역 U자혀의 다리부분을 형성하는 측벽에 설치된 하방으로 연장하는 설편상 연장부분(10.1)을, 고정 플랜지(6)와 프로펠라(3) 사이에 끼워 지지함으로써, 상기 희생 양극(8)을 상기 고정 플랜지(6)에 설치하는 것을 특징으로 하는 장치.A device which cathodes the outer surface of the sealing housing 5 surrounding the bush 2 supporting the propeller shaft 1 of the ship, the fixing flange of the propeller 3 of the bush 2 ( In the device provided in the at least one sacrificial anode 8 provided in 6), the sacrificial anode 8 is held in the recessed part of the casing 10 having a generally inverted U-shaped cross section, and the inverse of the casing 10 is retained. The sacrificial anode 8 is held between the fixing flange 6 and the propeller 3 by holding a tongue-extending tongue-like extending portion 10.1 which is provided on a side wall forming a leg portion of the U-shaped tongue. (6), characterized in that the device. 제1항에 있어서, 상기 프로펠라(3)와 상기 케이싱(10) 사이에, 내염수성을 지니며 전기 절연성을 지닌 재료로 형성된 패킹(7)이 배치되는 것을 특징으로 하는 장치.Device according to claim 1, characterized in that between the propeller (3) and the casing (10), a packing (7) formed of a material having saline resistance and having electrical insulation is arranged.
KR1019900014418A 1989-09-14 1990-09-13 Device for corrosion protection of shaft tube seal KR0180705B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3930686.0 1989-09-14
DE3930686A DE3930686A1 (en) 1989-09-14 1989-09-14 Cathodic protection of ship parts - with sacrificial anode held in cage clamped between parts to avoid loosening of anode and possible disconnection

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KR920006542A KR920006542A (en) 1992-04-27
KR0180705B1 true KR0180705B1 (en) 1999-02-18

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SG127687A1 (en) * 2002-12-19 2006-12-29 Beme Corrosion Internat As Ber Sacrificial anode and fastening device
US9862460B2 (en) 2012-12-03 2018-01-09 Samsung Heavy Ind. Co., Ltd. Propeller for ship, and assembling method and disassembling method therefor
CN103060819A (en) * 2012-12-24 2013-04-24 青岛钢研纳克检测防护技术有限公司 Installing device of remote site type auxiliary anode
DE102013213853A1 (en) * 2013-07-16 2015-01-22 Aktiebolaget Skf Corrosion protected bearing component and bearing arrangement
CN103614729A (en) * 2013-11-14 2014-03-05 中国海洋石油总公司 Testing device and method for cathode protection of indoor ship body
FR3034827B1 (en) * 2015-04-09 2017-10-13 Skf Ab BEARING WITH SACRIFICIAL ANODE
CN115354333B (en) * 2022-08-31 2023-08-04 广船国际有限公司 Cathode protection device for marine shaft and ship

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JP2739519B2 (en) 1998-04-15
CN1050228A (en) 1991-03-27
DE3930686A1 (en) 1991-03-28
KR920006542A (en) 1992-04-27
JPH03150381A (en) 1991-06-26
DE3930686C2 (en) 1993-04-29
CN1037457C (en) 1998-02-18

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