Improve predictive maintenance with HFE monitoring. [High Frequency Envelope]

Journal Article · Sat Jan 01 04:00:00 EST 1994 · Hydrocarbon Processing; (United States)

OSTI ID:5123890

Page, E A ^[1]; Berggren, C ^[2]

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1. Monitoring Technology Corp, Fairfax, VA (United States)
2. Monsanto Chemical Co., Pensacola, FL (United States)

New on-line machine vibration monitoring systems are offering substantially lower costs and simpler installation requirement. By incorporating high-frequency envelope (HFE) spectrum analysis, these systems can provide earlier and more reliable fault detection. These new capabilities are spurring a transition to on-line predictive monitoring of even noncritical machinery. These condition-monitoring systems automatically perform both conventional vibration analysis and HFE spectrum analysis. Conventional low-frequency spectrum analysis, between 0 to 10 kHz, is widely acknowledged as the most effective means of detecting imbalance, misalignment, mechanical resonances and looseness on machinery. HFE spectrum analysis, above 15 kHz, is now accepted as the most effective method for detecting machine faults, such as pitting or cracking in bearings and gears, insufficient lubrication, shaft rubbing and pump cavitation. The performance and economics of this method is discussed.

• OSTI ID: 5123890
• Journal Information: Hydrocarbon Processing; (United States), Journal Name: Hydrocarbon Processing; (United States) Vol. 73:1; ISSN HYPRAX; ISSN 0018-8190
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400 -- Petroleum-- Processing
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320303* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
DATA
DESIGN
EQUIPMENT
FREQUENCY DEPENDENCE
INDUSTRIAL PLANTS
INFORMATION
MACHINERY
MEASURING INSTRUMENTS
MECHANICAL VIBRATIONS
MONITORING
MONITORS
PAYBACK PERIOD
PETROLEUM REFINERIES