System and flow adaptive sensorless pumping control apparatus for energy saving pumping applications

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United States of America Patent

PATENT NO 9846416
SERIAL NO

14730871

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A signal processor receives signaling containing information about flow rates from sensorless converters in zone circulators in heating/cooling zones controlled by temperature sensors in a hydronic heating system in order to derive an adaptive pressure set point to meet the flow rates requested by the heating/cooling zones using an adaptive system and flow control curve equation, the signaling containing information about total flow rates requested by the zone circulators; determines desired pump speeds for the zone circulators to meet temperature requirements in heat zones; provides corresponding signaling containing information about the desired pump speeds; and/or determines the adaptive pump control curve equation based upon an adaptive system curve and as a moving maximum system flow rate depending on an adaptive pressure set point, a system flow rate requested by temperature loads, a minimum pressure at no flow, a control curve setting parameter, and an adaptive moving maximum flow and pressure.

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Patent Owner(s)

Patent OwnerAddress
FLUID HANDLING LLC8200 N AUSTIN AVE MORTON GROVE IL 60053

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cheng, Andrew A Wilmette, US 19 195
Gu, James J Buffalo Grove, US 24 203
Scott, Graham A Prospect Heights, US 22 508

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