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Title: Compressor surge counter

Abstract

A surge counter for a rotating compressor is provided which detects surging by monitoring the vibration signal from an accelerometer mounted on the shaft bearing of the compressor. The circuit detects a rapid increase in the amplitude envelope of the vibration signal, e.g., 4 dB or greater in less than one second, which is associated with a surge onset and increments a counter. The circuit is rendered non-responsive for a period of about 5 seconds following the detection which corresponds to the duration of the surge condition. This prevents multiple registration of counts during the surge period due to rapid swings in vibration amplitude during the period.

Inventors:
 [1]
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  1. Harriman, TN
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
864672
Patent Number(s):
4399548
Assignee:
Castleberry; Kimberly N. (Harriman, TN)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01H - MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
F - MECHANICAL ENGINEERING F04 - POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS F04C - ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS
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DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
compressor; surge; counter; rotating; provided; detects; surging; monitoring; vibration; signal; accelerometer; mounted; shaft; bearing; circuit; rapid; increase; amplitude; envelope; db; associated; onset; increments; rendered; non-responsive; period; following; detection; corresponds; duration; condition; prevents; multiple; registration; counts; due; swings; vibration signal; rapid increase; shaft bearing; surge counter; surge condition; /377/340/

Citation Formats

Castleberry, Kimberly N. Compressor surge counter. United States: N. p., 1983. Web.
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Castleberry, Kimberly N. Compressor surge counter. United States.
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Castleberry, Kimberly N. Sat . "Compressor surge counter". United States. https://www.osti.gov/servlets/purl/864672.
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@article{osti_864672,
title = {Compressor surge counter},
author = {Castleberry, Kimberly N},
abstractNote = {A surge counter for a rotating compressor is provided which detects surging by monitoring the vibration signal from an accelerometer mounted on the shaft bearing of the compressor. The circuit detects a rapid increase in the amplitude envelope of the vibration signal, e.g., 4 dB or greater in less than one second, which is associated with a surge onset and increments a counter. The circuit is rendered non-responsive for a period of about 5 seconds following the detection which corresponds to the duration of the surge condition. This prevents multiple registration of counts during the surge period due to rapid swings in vibration amplitude during the period.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {1}
}
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