Methods and apparatus for detecting and preventing compressor surge
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United States of America Patent
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Nov 19, 2019
Grant Date -
Oct 5, 2017
app pub date -
Oct 12, 2016
filing date -
Apr 1, 2016
priority date (Note) -
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Abstract
Methods and apparatus are disclosed for detecting and preventing compressor surge. A transmitter determines a derivative process value of a compressor. A controller obtains the derivative process value from the transmitter. The transmitter is separate from the controller. The controller compares the derivative process value to a threshold value. The threshold value is indicative of the initiation of a surge event in the compressor. In response to determining that the derivative process value fails to satisfy the threshold value, the controller actuates a valve operatively coupled to the compressor to enable an additional derivative process value of the compressor determined by the transmitter to satisfy the threshold value.
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