device for drehzahlgeregelten verbrennungsluftgebläsen of power plants

摘要

A device for variable-speed fans, in particular on combustion air fans in power stations or the like, offers the advantages of simple, economical speed-control devices without sacrificing the cooling losses which occur in the system and which can be recovered. To this end, a control coupling (2) with an air/coolant heat exchanger (8) connected to the intake channel (9) of the fan (5) is incorporated in the coolant circuit.