To minimize a rotational frequency of a pump for sending a heat medium produced by a heat source machine, in controlling a flow rate of the heat medium in equipment consuming heat.
This cooperation control device is composed of a pump operating state control device for controlling the rotational frequency of an inverter-driven liquid sending pump, and a flow rate control device for controlling the flow rate of heat medium in each load piping system, the operating state control device of the liquid sending pump outputs a command for fully opening a valve to the flow rate control valve of the load piping system and the like having the maximum heat medium flow rate, controls the rotational frequency of the pump to achieve the desired flow rate, and further controls the flow rates of the other piping systems of low required flow rate on the basis of an opening of each flow rate control valve.
COPYRIGHT: (C)2011,JPO&INPIT
Morita Kazunobu
Kawamura Tsutomu
Kaoru Koizumi
Koji Kumahara
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Yuji Toda