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Mechanical seal monitoring technique by acoustic emission measurements

Journal Article:

Abstract

This report describes a technique for mechanical seal monitoring through acoustic emission (AE) measurement. The equipment consists of an AE sensor, preamplifier, multiplexer, main amplifier, effective value transducer and computer system. When the sealed liquid pressure undergoes a large change, the seal surface configuration is monitored and evaluated accurately through AE measurement. If the mechanical seal surface id damaged or worn, the AE level is kept high or continues to fluctuate largely for a rather long period. When leak occurs, the AE value shows great fluctuations either at extremely low levels or at high levels. The former trend is considered to result from a decrease in solid contact due to an excessive amount of liquid film being formed at the seal surface during leak. In the latter case, the leak is attributed to severe damage to the seal surface. (18 figs, 1 tab, 5 photos, 3 refs)
Publication Date:
Sep 20, 1987
Product Type:
Journal Article
Reference Number:
NEDO-87-920251; EDB-88-066628
Resource Relation:
Journal Name: Ehara Jiho; (Japan); Journal Volume: 138
Subject:
36 MATERIALS SCIENCE; 42 ENGINEERING; ACOUSTIC EMISSION TESTING; MECHANICAL STRUCTURES; MONITORING; PUMPS; SEALS; FAILURES; ACOUSTIC TESTING; MATERIALS TESTING; NONDESTRUCTIVE TESTING; TESTING; 360103* - Metals & Alloys- Mechanical Properties; 420500 - Engineering- Materials Testing
OSTI ID:
5485540
Research Organizations:
Ebara Corp., Tokyo, Japan; Cosmo Oil Co., Ltd., Tokyo, Japan
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: CODEN: EHJIA
Submitting Site:
NEDO
Size:
Pages: 84-91
Announcement Date:

Journal Article:

Citation Formats

Kataoka, Tadashi, Fujita, Yoshihiro, Kawaguchi, Kazunori, Saito, Kazuhiro, Yokota, Setsuo, Hisada, Yasuhide, and Masahiro, Komatsu. Mechanical seal monitoring technique by acoustic emission measurements. Japan: N. p., 1987. Web.
Kataoka, Tadashi, Fujita, Yoshihiro, Kawaguchi, Kazunori, Saito, Kazuhiro, Yokota, Setsuo, Hisada, Yasuhide, & Masahiro, Komatsu. Mechanical seal monitoring technique by acoustic emission measurements. Japan.
Kataoka, Tadashi, Fujita, Yoshihiro, Kawaguchi, Kazunori, Saito, Kazuhiro, Yokota, Setsuo, Hisada, Yasuhide, and Masahiro, Komatsu. 1987. "Mechanical seal monitoring technique by acoustic emission measurements." Japan.
@misc{etde_5485540,
title = {Mechanical seal monitoring technique by acoustic emission measurements}
author = {Kataoka, Tadashi, Fujita, Yoshihiro, Kawaguchi, Kazunori, Saito, Kazuhiro, Yokota, Setsuo, Hisada, Yasuhide, and Masahiro, Komatsu}
abstractNote = {This report describes a technique for mechanical seal monitoring through acoustic emission (AE) measurement. The equipment consists of an AE sensor, preamplifier, multiplexer, main amplifier, effective value transducer and computer system. When the sealed liquid pressure undergoes a large change, the seal surface configuration is monitored and evaluated accurately through AE measurement. If the mechanical seal surface id damaged or worn, the AE level is kept high or continues to fluctuate largely for a rather long period. When leak occurs, the AE value shows great fluctuations either at extremely low levels or at high levels. The former trend is considered to result from a decrease in solid contact due to an excessive amount of liquid film being formed at the seal surface during leak. In the latter case, the leak is attributed to severe damage to the seal surface. (18 figs, 1 tab, 5 photos, 3 refs)}
journal = {Ehara Jiho; (Japan)}
volume = {138}
journal type = {AC}
place = {Japan}
year = {1987}
month = {Sep}
}