JPS5612998A - Corrosion preventing apparatus for cooler - Google Patents
Corrosion preventing apparatus for coolerInfo
- Publication number
- JPS5612998A JPS5612998A JP8740979A JP8740979A JPS5612998A JP S5612998 A JPS5612998 A JP S5612998A JP 8740979 A JP8740979 A JP 8740979A JP 8740979 A JP8740979 A JP 8740979A JP S5612998 A JPS5612998 A JP S5612998A
- Authority
- JP
- Japan
- Prior art keywords
- electric
- preset
- current value
- change
- iron
- 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 improve the corrosion prevention effect of a cooler which employs an external electric source of an electric potential preset type, by comparing a current value between an anode and a cathode and a rate of its change with a preset current value and a rate of change of preset current, respectively, and supplying iron ions into the cooling water using their make and break signals.
CONSTITUTION: An electric current from a constant electric potential power source 3 is passed through the cooler 1, cooling pipes 2 and an anode 4 so that the cathode electric potential is retained at a protective electric potential, and comparing a preset electric current value with an electric current value obtained from the constant electric potential power source 3 by the first comparator 5, when the electric current value is larger than the preset electric current value, an iron dissolving apparatus is operated which comprises an iron electrode 9, an electrode 10 of insoluble elecctrode material, and an electric source 8 for dissolving iron. Further the electric current continuously detected by the constant electric potential power source 3 is converted into a rate of its change in a differentiating part 6a, it is compared with a rate of change of preset current in a comparator 6b, and when it exceeds the rae of change of preset current, the electric source 8 for dissolving iron is opperated. Thus an electric current is passed through the electrodes 9, 10, to produce iron ions in the water. Consequently, the preventive measure for corrosion is carried out and the corrosion amount will be reduced.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8740979A JPS5612998A (en) | 1979-07-12 | 1979-07-12 | Corrosion preventing apparatus for cooler |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8740979A JPS5612998A (en) | 1979-07-12 | 1979-07-12 | Corrosion preventing apparatus for cooler |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5612998A true JPS5612998A (en) | 1981-02-07 |
Family
ID=13914073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8740979A Pending JPS5612998A (en) | 1979-07-12 | 1979-07-12 | Corrosion preventing apparatus for cooler |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5612998A (en) |
-
1979
- 1979-07-12 JP JP8740979A patent/JPS5612998A/en active Pending
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