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    Device for measuring and regulating a volume flow in a ventilation pipe
    2.
    发明申请
    Device for measuring and regulating a volume flow in a ventilation pipe 有权
    用于测量和调节通风管中体积流量的装置

    公开(公告)号：US20110105012A1

    公开(公告)日：2011-05-05

    申请号：US12921207

    申请日：2009-02-19

    申请人： Urs Niederhauser ,  Frank Lehnert ,  Egli Egli ,  Philip Holoch

    发明人： Urs Niederhauser ,  Frank Lehnert ,  Egli Egli ,  Philip Holoch

    IPC分类号： F24F11/04

    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).

    摘要翻译： 用于测量通气管（1）中的体积流量的装置包括可固定在通气管（1）中的安装件（8）和具有传感器表面（18.1）的传感器元件（13），所述元件被设置 在安装（8）上并配置为热风速计。 传感器元件（13）的上游是湍流产生元件，例如以分离边缘（17.1）的形式，其构造和设置在离传感器表面（18.1）一定距离处，使得高度湍流 以目标方式在传感器表面（18.1）的区域中产生。 传感器表面（18.1）的下游是在流动方向（L）的横截面上变宽的流动元件（20），其中从传感器表面（18.1）的高度开始，达到高度 大于与传感器表面（18.1）相对的脱离边缘（17.1）的高度。