JPS6445164U - - Google Patents
Info
- Publication number
- JPS6445164U JPS6445164U JP13805387U JP13805387U JPS6445164U JP S6445164 U JPS6445164 U JP S6445164U JP 13805387 U JP13805387 U JP 13805387U JP 13805387 U JP13805387 U JP 13805387U JP S6445164 U JPS6445164 U JP S6445164U
- Authority
- JP
- Japan
- Prior art keywords
- propeller
- potential
- corrosion
- corrosion protection
- ship
- 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
Links
- 238000005260 corrosion Methods 0.000 claims description 9
- 230000007797 corrosion Effects 0.000 claims description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims 3
- 229910052751 metal Inorganic materials 0.000 claims 3
- 239000000463 material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 239000013535 sea water Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Description
第１図は本考案の一実施例を示す船尾部部分縦
断側面図、第２図は第１図に作用する各防食電流
の回路を示す同じく船尾部部分縦断側面図、第３
図は第２図において軸アース機構が不良になつた
場合に作用する各防食電流の回路を示す同じく船
尾部部分縦断側面図、第４図は第２図において軸
アース機構が不良になるとゝもに亜鉛板が消耗し
てしまつた場合に作用する防食電流の回路を示す
同じく船尾部部分縦断側面図である。第５図は公
知の海水中の金属材料固有電位計測結果を示す図
、第６図は公知の流動海水中における金属材料固
有電位を示す線図、第７図は公知の船舶のプロペ
ラー防食装置を示す船尾部部分縦断側面図である
。
１……防食材、２……ボルト、３……プロペラ
ーキヤツプ、４……内部防食電流、０６……亜鉛
板、０７……舵、０８……船尾骨材、０９……プ
ロペラー、０１０……プロペラー翼、０１１……
プロペラーボス、０１２……プロペラー軸、０１
３……船尾管軸受、０１４……船体、０１５……
中間軸、０１６……軸アース機構、０１７……停
泊中防食電流、０１８……航行中防食電流。
Fig. 1 is a partial longitudinal sectional side view of the stern section showing an embodiment of the present invention; Fig. 2 is a longitudinal sectional side view of the stern section showing the circuits of each anti-corrosion current acting on the one shown in Fig. 1;
The figure is a partial longitudinal side view of the stern section showing the circuits of each anti-corrosion current that act when the shaft earthing mechanism becomes defective in FIG. 2, and FIG. FIG. 3 is a partial vertical cross-sectional side view of the stern portion of the ship, showing a circuit of an anti-corrosion current that is applied when the zinc plate is worn out. Fig. 5 is a diagram showing the measurement results of the known electric potential of metal materials in seawater, Fig. 6 is a diagram showing the electric potential of metal materials in flowing seawater, and Fig. 7 is a diagram showing the known electric potential of metal materials in flowing seawater. FIG. 1... Corrosion protection, 2... Bolt, 3... Propeller cap, 4... Internal corrosion protection current, 06... Zinc plate, 07... Rudder, 08... Stern aggregate, 09... Propeller, 010... ...Propeller blade, 011...
Propeller boss, 012...Propeller shaft, 01
3... Stern tube bearing, 014... Hull, 015...
Intermediate shaft, 016... Shaft earthing mechanism, 017... Corrosion protection current during berthing, 018... Corrosion protection current during navigation.
Claims (1)
ゝもに推進器軸系に軸アース機構が設けられる船
舶のプロペラー防食装置において、亜鉛板の固有
電位と船体材料のそれとの間にある負の固有電位
を有する金属よりなり後記するプロペラーキヤツ
プに付設された防食金属と、上記防食金属の固有
電位と上記プロペラーのボス及び翼のそれとの間
にある負の固有電位を有するプロペラーキヤツプ
とを具えたことを特徴とする船舶のプロペラー防
食装置。 In a propeller corrosion protection system for a ship in which a zinc plate is attached to the hull near the propeller and a shaft grounding mechanism is provided in the propeller shaft system, the negative inherent potential between the zinc plate's inherent potential and that of the hull material is A corrosion-proofing metal made of a metal having a potential and attached to a propeller cap, which will be described later, and a propeller cap having a negative characteristic potential between the characteristic potential of the corrosion-proofing metal and that of the boss and blades of the propeller. A ship propeller corrosion protection device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13805387U JPH0348208Y2 (en) | 1987-09-09 | 1987-09-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13805387U JPH0348208Y2 (en) | 1987-09-09 | 1987-09-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6445164U true JPS6445164U (en) | 1989-03-17 |
| JPH0348208Y2 JPH0348208Y2 (en) | 1991-10-15 |
Family
ID=31400035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13805387U Expired JPH0348208Y2 (en) | 1987-09-09 | 1987-09-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0348208Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018039411A (en) * | 2016-09-08 | 2018-03-15 | 株式会社大内海洋コンサルタント | Propeller boss cap with fin |
-
1987
- 1987-09-09 JP JP13805387U patent/JPH0348208Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018039411A (en) * | 2016-09-08 | 2018-03-15 | 株式会社大内海洋コンサルタント | Propeller boss cap with fin |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0348208Y2 (en) | 1991-10-15 |
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