JPS54116731A - Piping device - Google Patents

Piping device

Info

Publication number
JPS54116731A
JPS54116731A JP2398578A JP2398578A JPS54116731A JP S54116731 A JPS54116731 A JP S54116731A JP 2398578 A JP2398578 A JP 2398578A JP 2398578 A JP2398578 A JP 2398578A JP S54116731 A JPS54116731 A JP S54116731A
Authority
JP
Japan
Prior art keywords
electrode
stainless steel
nickel alloy
austenite stainless
pipe
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
Application number
JP2398578A
Other languages
Japanese (ja)
Inventor
Ichiro Wada
Masayuki Suzuki
Yuichi Sato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2398578A priority Critical patent/JPS54116731A/en
Publication of JPS54116731A publication Critical patent/JPS54116731A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
  • Prevention Of Electric Corrosion (AREA)

Abstract

PURPOSE: To prevent the corrosion of the pipe constituting metals by giving the electric current from outside on the pipes, the anode of austenite stainless steel and the cathode of nickel alloy.
CONSTITUTION: The nickel alloy electrode 2 is provided in the washing fluid 3 containing about 10% sulfuric acid which flows in the austenite stainless steel pipe of the exhaust gas desulfurizing plant. When the electric current of 100 μA per 1 cm2 electrode 2 is supplied to the anode made of austenite stainless steel pipe 1 and the cathode of nickel alloy electrode 2, the electric potential of the electrode 2 becomes about -0.5 V, and no trace of corrosion was found after 500 hours. On the other hand, the electric potential of the pipe 1 is about 0.2 V which is held well inside the passive state range.
COPYRIGHT: (C)1979,JPO&Japio
JP2398578A 1978-03-02 1978-03-02 Piping device Pending JPS54116731A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2398578A JPS54116731A (en) 1978-03-02 1978-03-02 Piping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2398578A JPS54116731A (en) 1978-03-02 1978-03-02 Piping device

Publications (1)

Publication Number Publication Date
JPS54116731A true JPS54116731A (en) 1979-09-11

Family

ID=12125856

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2398578A Pending JPS54116731A (en) 1978-03-02 1978-03-02 Piping device

Country Status (1)

Country Link
JP (1) JPS54116731A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS643396A (en) * 1987-06-26 1989-01-09 Nishihara Eisei Kogyosho Kk Method of connecting lining pipe lined by organic material
CN102072360A (en) * 2009-11-24 2011-05-25 上海市政工程设计研究总院 Pipe-jacking cathode protection embedding device and embedding method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS643396A (en) * 1987-06-26 1989-01-09 Nishihara Eisei Kogyosho Kk Method of connecting lining pipe lined by organic material
CN102072360A (en) * 2009-11-24 2011-05-25 上海市政工程设计研究总院 Pipe-jacking cathode protection embedding device and embedding method thereof

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