Insulated dryer drum
    1.
    发明授权
    Insulated dryer drum 失效
    绝缘干燥鼓

    公开(公告)号:US5528838A

    公开(公告)日:1996-06-25

    申请号:US217711

    申请日:1994-03-25

    CPC分类号: F26B13/183 D06F58/04

    摘要: The invention pertains to apparatus for thermally insulating selected portions of a cylindrical dryer drum, usually adjacent the drum ends, for the purpose of obtaining a substantially uniform drum shell temperature throughout its length to obtain a uniform moisture profile throughout the width of the web being dried. A plurality of cylindrical segments are bolted together within the drum interior to define a circumferential assembly biased against the drum inner surface. The segments each include a thermal insulation material engaging the drum shell preventing direct access of that engaged portion of the shell with the steam within the drum thereby reducing the exterior temperature of the drum shell at the location of the thermally insulated segment. The segments may be bolted together, widthwise, to increase the axial dimension of the temperature controlling segment assembly.

    摘要翻译: 本发明涉及用于隔热圆筒形干燥器滚筒的选定部分的设备,该设备通常与滚筒端部相邻,以便在其整个长度上获得基本上均匀的滚筒壳体温度,以在整个幅材干燥宽度上获得均匀的湿度分布 。 多个圆柱形段在滚筒内部被螺栓连接在一起以限定偏压在滚筒内表面上的圆周组件。 这些段各自包括接合鼓壳的绝热材料,防止壳体的接合部分与滚筒内的蒸汽直接接触,从而在隔热部分的位置减小滚筒外壳的外部温度。 这些段可以在宽度方向上螺栓连接在一起,以增加温度控制段组件的轴向尺寸。

    Rotary joint with extended life seal
    2.
    发明授权
    Rotary joint with extended life seal 失效
    旋转接头与延长生命密封

    公开(公告)号:US5226677A

    公开(公告)日:1993-07-13

    申请号:US743445

    申请日:1991-08-09

    IPC分类号: F16L27/093 D21F5/02 F16L27/08

    CPC分类号: D21F5/028 F16L27/082

    摘要: The invention pertains to a rotary joint for use with rotating machinery, such as a dryer drum, where the joint is conveying steam by means of a rotating nipple and sealing structure. The primary elements are a stationary housing comprised of a head, body and a wear plate, a pickup tube and a spring biased nipple with a collar which engages a molybdenum lubricated reverse radius seal ring. Alignment of the components is maintained through the interaction of two guide bearings supporting the nipple, the wear plate sealing surface and the nipple collar which is spring biased against a reverse radius seal ring intermediate the wear plate sealing surface and the nipple collar sealing surface. The invention includes a plurality of radial slots defined on the nipple collar sealing surface which reduce seal loading when steam is applied to the joint by reducing the area subjected to a differential pressure, and which lubricate the sealing surface with steam and a dry lubricant impregnated reverse radius seal ring positioned intermediate the wear plate and the nipple collar sealing surfaces.

    Anti-corrosive rotary joint
    3.
    发明授权
    Anti-corrosive rotary joint 失效
    防腐旋转接头

    公开(公告)号:US5110162A

    公开(公告)日:1992-05-05

    申请号:US661598

    申请日:1991-02-28

    IPC分类号: F16L27/08 F16L39/00

    CPC分类号: F16L39/04

    摘要: This invention pertains to a rotary joint for use with rotating machinery where the joint is conveying high temperature corrosive fluids such as molten salts. The joint includes both a stationary head to which external connections are made and a housing mounted on and rotating with a rotary apparatus with which the joint communicates. Alignment of the components is maintained through the interaction of two sleeve bearings disposed between a nipple coaxially extending from the head and the joint housing surrounding the nipple; the sleeve bearings being axially displaced from each other, the primary seal occupying an intermediate position. The primary seal is a spherical seal, interposed between a stationary nipple seal surface and a rotary housing sealing surface. The seal is preloaded by means of an external joint biasing support bracket to reduce leakage under conditions of low internal fluid pressures.

    Air controlled rotary joint compensator
    4.
    发明授权
    Air controlled rotary joint compensator 失效
    气动旋转接头补偿器

    公开(公告)号:US5067824A

    公开(公告)日:1991-11-26

    申请号:US545569

    申请日:1990-06-29

    IPC分类号: F16L27/087

    CPC分类号: F16L27/087

    摘要: The invention pertains to the method and apparatus of compensating for the axial bearing load forces imposed upon rotary joints conveying a pressurized fluid medium, such as steam, by imposing an axial force on the rotary joint housing proportional to the pressure within the rotary joint by use of a distinctively different pressurized medium than that comveyed by the joint, such as compressed air. An expansible chamber motor capable of imposing an axial force on the rotary joint utilizes compressed air whose pressure is controlled by a sensing and regulating system responsive to the pressure within the rotary joint.

    摘要翻译: 本发明涉及通过使用与旋转接头中的压力成比例的旋转接头壳体施加轴向力来补偿施加在旋转接头上传送加压流体介质(例如蒸汽)的轴向轴承负载力的方法和装置, 与压缩空气等接头所输送的压力介质不同的加压介质。 能够在旋转接头上施加轴向力的可膨胀腔室电动机利用压缩空气,其压力由响应于旋转接头内的压力的感测和调节系统控制。

    Air controlled rotary joint compensator
    5.
    发明授权
    Air controlled rotary joint compensator 失效
    气动旋转接头补偿器

    公开(公告)号:US4971367A

    公开(公告)日:1990-11-20

    申请号:US351465

    申请日:1989-05-15

    IPC分类号: F16L27/08

    CPC分类号: F16L27/08 Y10S285/90

    摘要: The invention pertains to the method and apparatus of compensating for the axial bearing load forces imposed upon rotary joints conveying a pressurized fluid medium, such as steam, by imposing an axial force on the rotary joint housing proportional to the pressure within the rotary joint by use of a distinctively different pressurized medium than that conveyed by the joint, such as compressed air. An expansible chamber motor capable of imposing an axial force on the rotary joint utilizes compressed air whose pressure is controlled by a sensing and regulating system responsive to the pressure within the rotary joint.