JPS5551680A - Preventing method of ballast water freezing for ship - Google Patents
Preventing method of ballast water freezing for shipInfo
- Publication number
- JPS5551680A JPS5551680A JP12466478A JP12466478A JPS5551680A JP S5551680 A JPS5551680 A JP S5551680A JP 12466478 A JP12466478 A JP 12466478A JP 12466478 A JP12466478 A JP 12466478A JP S5551680 A JPS5551680 A JP S5551680A
- Authority
- JP
- Japan
- Prior art keywords
- ship
- ballast
- tank
- water
- ballast water
- 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
Landscapes
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
PURPOSE: To eliminate the necessity of installation of a heating coil in a ballast tank by allowing ballast water to circulate by means of ballast pump and preventing certainly the freezing of ballast water, when a ship navigates in cold region.
CONSTITUTION: In a ship 1 having a ballast tank 2 continuous up and down integrally on the side of the ship, the ballast water W in the ballast tank 2 is drawn out by a bell mouth 3 arranged at the bottom position in the tank lower than the draft line a, and discharged outside the ship from the overboard discharge port 5 of the ship 1 by the operation of a pump 4. At the same time, the sea water having the amount corresponding to the displacement is taken in from a sea-chest 6 arranged in the vicinity of the bottom of the ship and fed in the tank from an upper water pouring pipe 8 of the ballast tank 2 by the operation of a pump 7, and the ballast water in the ballast tank 2 is allowed to circulate. Thus, the freezing of ballast water in navigation in cold region can be prevented.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12466478A JPS5824317B2 (en) | 1978-10-12 | 1978-10-12 | How to prevent ship ballast water from freezing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12466478A JPS5824317B2 (en) | 1978-10-12 | 1978-10-12 | How to prevent ship ballast water from freezing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5551680A true JPS5551680A (en) | 1980-04-15 |
| JPS5824317B2 JPS5824317B2 (en) | 1983-05-20 |
Family
ID=14890990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12466478A Expired JPS5824317B2 (en) | 1978-10-12 | 1978-10-12 | How to prevent ship ballast water from freezing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5824317B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58188782A (en) * | 1982-04-26 | 1983-11-04 | Hitachi Zosen Corp | Prevention of freezing of ballast tank in frozen sea vessel |
| JPS58188783A (en) * | 1982-04-26 | 1983-11-04 | Hitachi Zosen Corp | Prevention of freezing of ballast tank in frozen sea vessel |
| JPS58186992U (en) * | 1982-06-08 | 1983-12-12 | 川崎重工業株式会社 | Tank structure for ships sailing in cold regions |
| US4548148A (en) * | 1983-01-25 | 1985-10-22 | Bloomfield Iii John W | Glass bottom boat |
-
1978
- 1978-10-12 JP JP12466478A patent/JPS5824317B2/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58188782A (en) * | 1982-04-26 | 1983-11-04 | Hitachi Zosen Corp | Prevention of freezing of ballast tank in frozen sea vessel |
| JPS58188783A (en) * | 1982-04-26 | 1983-11-04 | Hitachi Zosen Corp | Prevention of freezing of ballast tank in frozen sea vessel |
| JPS6135028B2 (en) * | 1982-04-26 | 1986-08-11 | Hitachi Zosen Kk | |
| JPS6135029B2 (en) * | 1982-04-26 | 1986-08-11 | Hitachi Zosen Kk | |
| JPS58186992U (en) * | 1982-06-08 | 1983-12-12 | 川崎重工業株式会社 | Tank structure for ships sailing in cold regions |
| US4548148A (en) * | 1983-01-25 | 1985-10-22 | Bloomfield Iii John W | Glass bottom boat |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5824317B2 (en) | 1983-05-20 |
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