AN INDUSTRIAL PROCESS EFFICIENCY METHOD AND SYSTEM

摘要

An industrial fluid circulation system and method has at least one fluid circulation circuit in an industrial process, such as an HVAC system. The at least one fluid circulation circuit includes a plurality of pumps connected in parallel to circulate a fluid through the at least one fluid circulation circuit, with at least two of the parallel connected pumps operating at all given loads. A separate motor drives each pump and a speed control is used to vary the speed of each motor to thereby vary the pumping capacity of each parallel connected pump. A load detector is provided to sense operating loads on the system, and each operating pump runs simultaneously at all loads, relative to a maximum pump speed, at a substantially similar reduced speed, a predetermined equal reduced speed or a predetermined almost equal reduced speed.