SECONDARY PUMP SYSTEM HEATING SOURCE FLOW VARIABLE CONTROL METHOD AND SECONDARY PUMP SYSTEM HEATING SOURCE SYSTEM

摘要

PROBLEM TO BE SOLVED: To realize energy-saving by eliminating waste of conveying power by making the flow rate flowing in a by-pass conduit close to zero without newly providing a flowmeter on the by-pass conduit.;SOLUTION: The flowmeter 13 provided to determine a load calorific value is used and a proportional divided flow rate Fi is determined by diving a load flow rate F measured by this flowmeter 13 by the number n of operated heat source machines 1. The revolution number of a primary pump 2 provided in relation to the heat source machine 1 operated at present is controlled according to this proportional division flow rate Fi. Specifically, unique INV output tables are prepared for the respective primary pumps (2-1)-(2-N). Regarding each of the primary pump 2 provided to the heat source machine 1 during operation, the INV output corresponding to the proportional division flow rate Fi is determined in reference to the unique INV table and is set in an inverter 15.;COPYRIGHT: (C)2004,JPO