Fast-response pump monitoring and in-situ pump data recording system

摘要

A proposed implementation of this present subject matter utilizes a data collection and processing unit and sensors to monitor one or more conditions which can cause damage to a pump. These conditions include differential pressure across the pump, pump flow rate, and the pump rotational speed (RPM). Pump operating curves are analyzed to develop equations indicative of minimum and maximum allowable head for efficient operation within mechanical operation limits of the pump. The equations are used to set a processor for analyzing data inputs. The processor utilizes sensor inputs from the pump, including input and output pressure differential, flow, and pump speed. These values are compared to stored data or may be inserted into an equation to provide a calculated parameter indicative of operation in or out of pump operating limits. Responsive circuits inform users of alarm conditions.

主权项

1. A centrifugal pump monitoring system for monitoring operation of a pump, a structure of the pump corresponding to an operating curve, comprising: sensors positioned to monitor performance parameters of a centrifugal pump and provide sensor outputs each indicative of a value thereof, a reading circuit to process sensor outputs, and a processor containing parameter limits defined by the operating curve of the pump, the operating curve defining operation over a range of head versus a range of flow rate, the processor coupled to compare sensor outputs to respective parameter limits and to produce an out-of-limit signal in response to values outside of the respective parameter limits.