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35 条记录 (耗时 0.013 秒)

    Centrifugal pump with sealing means
    1.
    发明公开
    Centrifugal pump with sealing means 失效
    离心泵具有密封性

    公开(公告)号：EP0481598A3

    公开(公告)日：1992-05-06

    申请号：EP91308099.0

    申请日：1991-09-04

    申请人： A. AHLSTROM CORPORATION

    发明人： Haavik, Harold ,  Peroaho, Tapio ,  Vesala, Reijo ,  Vikman, Vesa

    IPC分类号： F04D7/04 ,  F04C27/02

    CPC分类号： F04C19/00 ,  F04C27/02 ,  F04C2220/20 ,  F04D7/045 ,  F05B2210/132

    摘要： A centrifugal pump for pumping fiber suspensions includes a centrifugal pumping housing (50) having an inlet (52) and an outlet for the suspension and a centrifugal impeller within the centrifugal pump housing. A vacuum pump (70) is placed adjacent the centrifugal pump housing (50) and includes a vacuum pump chamber defined by first and second opposed side walls (110, 112) and a vacuum pump rotor which is eccentrically mounted within the vacuum pump chamber. The rotor has radially extending opposed side edges facing the vacuum pump side walls (110, 112) forming a clearance therebetween. The pump includes a conduit within at least one of the vacuum pump side walls (110, 112) for supplying a sealing liquid to the clearance (122) between the rotor and at least one of the side walls of the vacuum pump chamber (76). Flushing liquid may be supplied through the same sealing liquid conduits or separately therefrom. The centrifugal pump may include a fluidizing impeller.

    Method and apparatus for pumping a medium
    2.
    发明公开
    Method and apparatus for pumping a medium 失效
    Verfahren und Vorrichtung zum Pumpen eines Mediums。

    公开(公告)号：EP0466167A2

    公开(公告)日：1992-01-15

    申请号：EP91111619.2

    申请日：1991-07-12

    申请人： A. AHLSTROM CORPORATION

    发明人： Niskanen, Toivo ,  Reponen, Voitto ,  Timperi, Jukka ,  Vesala, Reijo ,  Vikman, Vesa

    IPC分类号： F04D7/04 ,  F04D29/42

    CPC分类号： F04D29/426 ,  F04D7/045 ,  F04D15/00 ,  F04D15/0022 ,  F04D29/2288 ,  F04D29/5866 ,  F05B2210/132

    摘要： The present invention discloses a method and a centrifugal pump for pumping fiber suspensions of the pulp and paper industry in which the fiber suspension is caused to flow into a centrifugal pump housing in which space a vortex flow is created to prevent the suspension from forming a strong fiber network and from causing blockage of the system.
    The centrifugal pump includes a housing provided with one inlet (22) and at least two non-symmetrical outlets (92, 94), at least one of the outlets being preferably provided with a means for regulating the flow through the outlet. The centrifugal pump further includes an impeller/rotor (78, 80) for moving the suspension through the several outlets (92, 94) towards further processing devices.

    摘要翻译： 本发明公开了一种用于泵送纸浆和造纸工业的纤维悬浮液的方法和离心泵，其中使纤维悬浮液流入离心泵壳体，在该壳体内产生涡流，以防止悬浮液形成强烈的 纤维网络和系统的阻塞。 离心泵包括设置有一个入口（22）和至少两个非对称出口（92,94）的壳体，至少一个出口设置有用于调节通过出口的流动的装置。 离心泵还包括用于将悬架通过多个出口（92,94）移动到另外的处理装置的叶轮/转子（78,80）。

    Method and apparatus for keeping a screen or filter surface clear
    4.
    发明公开
    Method and apparatus for keeping a screen or filter surface clear 失效
    Methode und Vorrichtung zum Sauberhalten einer Sieb-oderFilteroberfläche。

    公开(公告)号：EP0298443A1

    公开(公告)日：1989-01-11

    申请号：EP88110779.1

    申请日：1988-07-06

    申请人： A. AHLSTROM CORPORATION

    发明人： Niskanen, Toivo ,  Vikman, Vesa

    IPC分类号： D21D5/02

    CPC分类号： D21D5/026

    摘要： The present invention relates to a method and apparatus for keeping a screen surface or a filter surface clear. The method and apparatus according to the invention is especially suit­able in connection with thickeners, screens and filters in­tended for treating the fiber suspensions in the pulp and paper industry.
    The greatest disadvantage of all above-mentioned equipment is the tendency of perforated screen/filter surfaces to become gradually clogged as fibers of pulp suspensions adhere to the openings in the screen/filter surface.
    In the method of the invention, pressure fluid is introduced from a conduit (5) to the secondary side (10) of the screen/­filter drum (6), which fluid flows, during the underpress­urized stage caused by the blades (9) of the rotor (7) rotating on the primary side of the screen/filter drum (6), through the screen/filter drum (6) from the secondary side to the primary side thereby rinsing the openings of the drum (6) and making them clear.

    摘要翻译： 本发明涉及一种保持屏幕表面或过滤表面清洁的方法和装置。 根据本发明的方法和装置特别适用于用于处理纸浆和造纸工业中的纤维悬浮液的增稠剂，筛网和过滤器。 所有上述设备的最大缺点是当纸浆悬浮液的纤维粘附在筛网/过滤器表面上的开口时，穿孔筛网/过滤器表面逐渐堵塞。 在本发明的方法中，压力流体从导管（5）引导到筛网/过滤鼓（6）的次级侧（10），该流体在流体流动的过程中由叶片（9） 在筛网/过滤鼓（6）的初级侧旋转的转子（7）通过筛网/过滤鼓（6）从次级侧到初级侧，从而漂洗滚筒（6）的开口并使它们 明确。

    Centrifugal pump with sealing means
    6.
    发明公开
    Centrifugal pump with sealing means 失效
    Kreiselpumpe mit Abdichtungsmitteln。

    公开(公告)号：EP0481598A2

    公开(公告)日：1992-04-22

    申请号：EP91308099.0

    申请日：1991-09-04

    申请人： A. AHLSTROM CORPORATION

    发明人： Haavik, Harold ,  Peroaho, Tapio ,  Vesala, Reijo ,  Vikman, Vesa

    IPC分类号： F04D7/04 ,  F04C27/02

    CPC分类号： F04C19/00 ,  F04C27/02 ,  F04C2220/20 ,  F04D7/045 ,  F05B2210/132

    摘要： A centrifugal pump for pumping fiber suspensions includes a centrifugal pumping housing (50) having an inlet (52) and an outlet for the suspension and a centrifugal impeller within the centrifugal pump housing. A vacuum pump (70) is placed adjacent the centrifugal pump housing (50) and includes a vacuum pump chamber defined by first and second opposed side walls (110, 112) and a vacuum pump rotor which is eccentrically mounted within the vacuum pump chamber. The rotor has radially extending opposed side edges facing the vacuum pump side walls (110, 112) forming a clearance therebetween. The pump includes a conduit within at least one of the vacuum pump side walls (110, 112) for supplying a sealing liquid to the clearance (122) between the rotor and at least one of the side walls of the vacuum pump chamber (76). Flushing liquid may be supplied through the same sealing liquid conduits or separately therefrom. The centrifugal pump may include a fluidizing impeller.

    摘要翻译： 用于泵送纤维悬浮液的离心泵包括离心泵壳体（50），其具有用于悬架的入口（52）和出口以及离心泵壳体内的离心式叶轮。 真空泵（70）放置在离心泵壳体（50）附近，并且包括由第一和第二相对侧壁（110,112）限定的真空泵室和偏心地安装在真空泵室内的真空泵转子。 转子具有面向真空泵侧壁（110,112）的径向延伸的相对侧边缘，在其间形成间隙。 该泵包括至少一个真空泵侧壁（110,112）内的导管，用于将密封液体供应到转子与真空泵室（76）的至少一个侧壁之间的间隙（122） 。 冲洗液体可以通过相同的密封液体管道或与其分开供应。 离心泵可包括流化叶轮。

    Combined centrifugal and vacuum pump
    7.
    发明公开
    Combined centrifugal and vacuum pump 失效
    Kombinierte Zentrifugal-和Vakuumpumpe。

    公开(公告)号：EP0474478A2

    公开(公告)日：1992-03-11

    申请号：EP91308102.2

    申请日：1991-09-04

    申请人： A. AHLSTROM CORPORATION

    发明人： Vesala, Reijo ,  Vikman, Vesa

    IPC分类号： F04D7/04

    CPC分类号： F04D7/045 ,  F05B2210/132

    摘要： A centritugal pump for pumping gas containing fiber suspensions in the pulp and paper industry includes a centrifugal pumping chamber (54) a centrifugal impeller (60) within the pumping chamber; a liquid ring vacuum pump (70) having a radially vaned vacuum pump rotor (96) therein; an intermediate wall (72) separating the pumping chamber (54) from the vacuum pump (70) which has a non-annular volume (146) therein and which provides a passageway between the centrifugal pumping chamber (54) and the vacuum pump (70). A conduit (71) within the intermediate wall (72) is connected to the non-annular volume (146) for introducing a liquid into at least one of the non-annular volume and the vacuum pump (60).

    摘要翻译： 用于在纸浆和造纸工业中泵送含有纤维悬浮液的气体的中心泵包括位于泵送室内的离心泵送室（54）和离心式叶轮（60）; 在其中具有径向叶片的真空泵转子（96）的液环真空泵（70） 将所述泵送室（54）与所述真空泵（70）分离的中间壁（72），所述真空泵在所述真空泵（70）内具有非环形容积（146），并且在所述离心泵送室（54）和所述真空泵 ）。 中间壁（72）内的导管（71）连接到非环形体积（146），用于将液体引入非环形容积和真空泵（60）中的至少一个。