Title:
CORROSION AND EROSION PREVENTION STRUCTURE, PUMP INCLUDING THE SAME, AND MANUFACTURING METHOD AND REPAIR METHOD FOR PUMP
Document Type and Number:
Japanese Patent JP2018040363
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a structure capable of preventing occurrence and progress of corrosion between materials of a casing and a casing ring (liner ring) even in a case where the materials are dissimilar metal materials, and capable of preventing erosion due to cavitation resulting from leaked flow passing through an interval between the casing and the casing ring following progress of corrosion.SOLUTION: A corrosion and erosion prevention structure provided near an opposite portion of a casing and an impeller 9, includes the casing, a casing ring 19 installed in the casing and opposite to the impeller 9, and an electric insulation material 17A provided between the casing and the casing ring 19.SELECTED DRAWING: Figure 2
Inventors:
NOMI MOTOHIKO
YAKUWA HIROSHI
HAYAFUSA KEISUKE
NAKAMOTO HIROAKI
KIKUTA KYOSUKE
FUKUDA SEIJI
YAKUWA HIROSHI
HAYAFUSA KEISUKE
NAKAMOTO HIROAKI
KIKUTA KYOSUKE
FUKUDA SEIJI
Application Number:
JP2017201931A
Publication Date:
March 15, 2018
Filing Date:
October 18, 2017
Export Citation:
Assignee:
EBARA CORP
International Classes:
F04D7/06; F04D29/08; F04D29/42
Domestic Patent References:
| JPH0583393U | 1993-11-12 | |||
| JPH09329081A | 1997-12-22 | |||
| JP2002257082A | 2002-09-11 |
Attorney, Agent or Firm:
Shinjiro Ono
Toru Miyamae
Yukio Kanegae
Makoto Watanabe
Toru Miyamae
Yukio Kanegae
Makoto Watanabe
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