VORTEX FLOWMETER INCLUDING PRESSURE PULSATION AMPLITUDE ANALYSIS

摘要

A configuration tool is for a vortex flowmeter having a flowtube, a bluff body positioned in the flowtube for shedding vortices in the fluid, and a pressure sensor configured to obtain a signal indicative of a time-varying fluid pressure having an oscillation associated with the vortices. The configuration tool includes a processor that determines a type of fluid flowing through the flowtube based on the amplitude of the oscillation. The processor sets a fluid-type setting of the vortex meter to match the determined type of fluid. An alarming system for a control system including such a flowmeter includes a processor that assesses a density of a fluid flowing through the flowtube based on the amplitude and compares the assessed density to a fluid density configuration setting. The processor activates an alarm if the difference between the assessed density and the fluid density configuration setting exceeds a threshold.

主权项

1. A method of configuring a vortex flowmeter, the method comprising:
flowing a fluid through the vortex meter in a manner that produces a series of vortices in the fluid; using a pressure sensor to obtain a signal indicative of a time-varying fluid pressure having an oscillation associated with the vortices; determining an amplitude of the oscillation of time-varying signal; and configuring the vortex meter to have a fluid-type setting that is based on said amplitude.