Papermaking machine
    21.
    发明申请
    Papermaking machine 审中-公开
    造纸机

    公开(公告)号:US20050274474A1

    公开(公告)日:2005-12-15

    申请号:US11104613

    申请日:2005-04-13

    CPC classification number: D21G9/0009 D21F7/00

    Abstract: Machine for a web having at least one marking device structured and arranged to apply at least two markings at a distance from one another in a longitudinal direction to the web. At least one measuring device is arranged downstream, relative to a web run direction, of the at least one marking device. The at least one measuring device is structured and arranged to measure the distance between the markings. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

    Abstract translation: 一种具有至少一个标记装置的织物的机器,所述至少一个标记装置被构造和布置成沿纵向方向相对于幅材施加一定距离的至少两个标记。 至少一个测量装置布置在所述至少一个标记装置的相对于卷筒纸运行方向的下游。 至少一个测量装置被构造和布置成测量标记之间的距离。 本摘要既不旨在限定本说明书中公开的发明,也不旨在以任何方式限制本发明的范围。

    Apparatus and method for determining the permeability of a circulating band in a paper machine
    23.
    发明申请
    Apparatus and method for determining the permeability of a circulating band in a paper machine 有权
    用于确定造纸机中循环带的渗透性的装置和方法

    公开(公告)号:US20050145358A1

    公开(公告)日:2005-07-07

    申请号:US10943690

    申请日:2004-09-17

    CPC classification number: D21G9/0009 D21F1/32 G01N15/0826 G01N2015/0866

    Abstract: An apparatus and a method for determining the permeability of a circulating band, in particular a water-absorbing dewatering band in a papermaking machine. The apparatus is equipped with a nozzle from which a measuring fluid flows onto or through the band. Fluctuations in the flow of the measuring fluid and in the nozzle exit pressure can distort the measurement of the permeability. The apparatus has a device for determining the speed of the band and/or a device for determining the nozzle exit speed and the nozzle exit pressure of the measuring fluid. These three measured variables are measured simultaneously, so that a fluctuation in one of these measured variables cannot impair the accuracy of the permeability measurement.

    Abstract translation: 用于确定造纸机中循环带的渗透性,特别是吸水脱水带的装置和方法。 该装置配备有喷嘴,测量流体从该喷嘴流入或穿过该带。 测量流体的流动和喷嘴出口压力的波动会导致渗透性的测量变形。 该装置具有用于确定带速度的装置和/或用于确定测量流体的喷嘴出口速度和喷嘴出口压力的装置。 这三个测量变量同时测量,使得这些测量变量之一的波动不会损害磁导率测量的精度。

    Method and apparatus for determining at least one property of moving clothing in a paper machine

    公开(公告)号:US20050145043A1

    公开(公告)日:2005-07-07

    申请号:US10943656

    申请日:2004-09-17

    CPC classification number: G01N15/0826 G01N33/346

    Abstract: A method of determining at least one property of moving clothing of a machine for producing and/or treating a material web, in particular a paper or board web, which includes the following steps: arranging a nozzle opposite the surface of the moving clothing; producing a jet acting on the clothing by way of the nozzle contacting the moving clothing; measuring a variable representative of the flow through the nozzle; measuring a variable representative of the pressure of the jet at the nozzle outlet; determining the speed of the jet at the nozzle outlet from the nozzle flow and the free surface of the jet medium at the point of contact with the clothing; and determining the speed of the jet at the entry into the clothing from the speed of the jet at the nozzle outlet and the speed of the clothing. By using the speed of the jet at the entry into the clothing at a given pressure of the jet at the nozzle outlet and entry into the clothing, the water permeability of the moving clothing is determined and/or at least one surface property of the moving clothing is determined. A corresponding apparatus is also specified.

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