ELECTROLYTIC PROTECTION SYSTEM AND PUMP DEVICE PROVIDED WITH SAME

Title:

ELECTROLYTIC PROTECTION SYSTEM AND PUMP DEVICE PROVIDED WITH SAME

Document Type and Number:

WIPO Patent Application WO/2015/045608

Kind Code:

A1

Abstract:

The purpose of the present invention is to increase the life of sacrificial anodes used in pump devices such as seawater pumps is increased, and increase the life of electrolytic protection systems for seawater pump devices. A pump device (30) is provided with a protection system (70) having a measurement unit (20) in a part of a column pipe (33) that is immersed in seawater and a temperature control device (17) at the location where the pump device (30) is installed. In this protection system (70), a sacrificial anode (3) that is connected electrically to the column pipe (33) and can be temperature-controlled is attached via a heating and cooling unit (11) and a heat conducting sheet (10). A temperature control device (17) controls the temperature of the sacrificial anode (3) by means of the heating and cooling unit (11) attached via the heat conducting sheet (10) on the sacrificial anode (3) on the basis of the temperature of the sacrificial anode (3) measured by the measurement unit (20).

Inventors:

KOBAYASHI REO (JP)
OHASHI KENYA (JP)
ITOH MASAHIRO (JP)
CHIBA YOSHIMASA (JP)
MIYACHI TAKAYOSHI (JP)

Application Number:

PCT/JP2014/069869

Publication Date:

April 02, 2015

Filing Date:

July 28, 2014

Export Citation:

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Assignee:

HITACHI LTD (JP)

International Classes:

C23F13/00

Foreign References:

JP2003034886A	2003-02-07
JP2000273566A	2000-10-03
JP2005194624A	2005-07-21
JP2003034886A	2003-02-07
JPH10306388A	1998-11-17