FLOW RATE CONTROL SYSTEM BY DIVERSION TYPE FLOW RATE MEASUREMENT

摘要

PROBLEM TO BE SOLVED: To provide a flow rate control system by a diversion type flow rate measurement economically performing a heat source control with high energy saving effects. SOLUTION: This flow rate control system is provided with: an air conditioner 15 processing air conditioning load; a cold and hot water producing machine 11 feeding heat medium to the air conditioner 15; a bypass pipe 21 connecting a heat medium feed side pipe to a heat medium return side pipe; a bypass diversion pipe 22 having a pipe diameter smaller than that of the bypass pipe 21 and after diverging the heat medium of the bypass pipe 21, joining the heat medium with the bypass pipe 21; and a flow rate control device 25 variably controlling the flow rate of the bypass diversion pipe 22 to a prescribed value so as to circulate and feed the heat medium according to the air conditioning load. COPYRIGHT: (C)2003,JPO