JPS6439388A - Method for preventing electrolytic corrosion of buried pipe by multiple electric potential control - Google Patents
Method for preventing electrolytic corrosion of buried pipe by multiple electric potential controlInfo
- Publication number
- JPS6439388A JPS6439388A JP62194594A JP19459487A JPS6439388A JP S6439388 A JPS6439388 A JP S6439388A JP 62194594 A JP62194594 A JP 62194594A JP 19459487 A JP19459487 A JP 19459487A JP S6439388 A JPS6439388 A JP S6439388A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- potential
- buried pipe
- power source
- plural
- 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.)
- Pending
Links
Landscapes
- Prevention Of Electric Corrosion (AREA)
Abstract
PURPOSE:To prevent the electrolytic corrosion with a single electric power source by operating the collation electrode group and galvanic electrode group set along the buried pipes to be prevented from corrosion of plural structures such as an electric railway by the automatic constant-potential control power source incorporating a microcomputer. CONSTITUTION:For example, in plural electric railways 2a-2c, the plural collation electrodes 4a-4c for detecting the voltage to ground of the buried pipe 1 are set along the buried pipe 1 approaching and crossing the railways 2 in the vicinity of the buried pipe 1. Plural galvanic electrodes 3a-3c for an external power source are simultaneously set around the periphery of each electrode group 4 in the state forming pairs with the group 4 in ratio of 1:1 or 1:n. The electrode groups 3 and 4 are connected to the automatic constant-potential control power source device 5. The detected potential by the electrode 4 is inputted to the microcomputer incorporated in the device 5, computed, and compared with the set potential. The value exhibiting a noble potential and the electrode 3 in its vicinity are selected, and a necessary corrosion protection current is applied to the position exhibiting the noble potential from the electrode 3.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62194594A JPS6439388A (en) | 1987-08-04 | 1987-08-04 | Method for preventing electrolytic corrosion of buried pipe by multiple electric potential control |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62194594A JPS6439388A (en) | 1987-08-04 | 1987-08-04 | Method for preventing electrolytic corrosion of buried pipe by multiple electric potential control |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6439388A true JPS6439388A (en) | 1989-02-09 |
Family
ID=16327139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62194594A Pending JPS6439388A (en) | 1987-08-04 | 1987-08-04 | Method for preventing electrolytic corrosion of buried pipe by multiple electric potential control |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6439388A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100380113B1 (en) * | 2000-05-20 | 2003-04-16 | 아키정보기술(주) | A Corrosion Prediction System of Underground Metallic Structures and it's Analysis Method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55152186A (en) * | 1979-05-15 | 1980-11-27 | Nakagawa Boshoku Kogyo Kk | Controlling method of output current of automatic control type rectifier for electric corrosion prevention |
JPS623576B2 (en) * | 1979-08-15 | 1987-01-26 | Tokyo Shibaura Electric Co |
-
1987
- 1987-08-04 JP JP62194594A patent/JPS6439388A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55152186A (en) * | 1979-05-15 | 1980-11-27 | Nakagawa Boshoku Kogyo Kk | Controlling method of output current of automatic control type rectifier for electric corrosion prevention |
JPS623576B2 (en) * | 1979-08-15 | 1987-01-26 | Tokyo Shibaura Electric Co |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100380113B1 (en) * | 2000-05-20 | 2003-04-16 | 아키정보기술(주) | A Corrosion Prediction System of Underground Metallic Structures and it's Analysis Method |
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