公开(公告)号：EP2260245B1

公开(公告)日：2015-01-07

申请号：EP09717214.2

申请日：2009-02-19

申请人： Belimo Holding AG

发明人： EGLI, Alexander ,  HOLOCH, Philip ,  NIEDERHAUSER, Urs ,  LEHNERT, Frank

IPC分类号： F24F11/04

CPC分类号： G05D7/0635 ,  F24F11/74 ,  F24F2110/30 ,  G01F1/6842

公开(公告)号：EP2260245A1

公开(公告)日：2010-12-15

申请号：EP09717214.2

申请日：2009-02-19

申请人： Belimo Holding AG

发明人： EGLI, Alexander ,  HOLOCH, Philip ,  NIEDERHAUSER, Urs ,  LEHNERT, Frank

IPC分类号： F24F11/04

CPC分类号： G05D7/0635 ,  F24F11/74 ,  F24F2110/30 ,  G01F1/6842

摘要： A device for measuring a volume flow in a ventilation pipe (1) comprises a mounting (8) that can be fixed in the ventilation pipe (1) and a sensor element (13) having a sensor surface (18.1), said element being disposed on the mounting (8) and configured as a thermal anemometer. Upstream of the sensor element (13) is a turbulence-generating element, for example in the form of a break-away edge (17.1), which is configured and disposed at a distance from the sensor surface (18.1) such that highly turbulent flow is generated in the region of the sensor surface (18.1) in a targeted manner. Downstream of the sensor surface (18.1) is a flow element (20), which widens in the cross-section thereof in the flow direction (L), wherein starting from a height level of the sensor surface (18.1) a height is reached that is greater than the height of the break-away edge (17.1) opposite the sensor surface (18.1).