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公开(公告)号：US20040227298A1
公开(公告)日：2004-11-18
申请号：US10791515
申请日：2004-03-01
发明人： Henri V. Azibert
IPC分类号： F16J015/34
CPC分类号： F16J15/3404 , F16J15/3448 , F16J15/3472 , F16J15/3484 , F16J15/38 , F16J15/40
摘要： A mechanical seal having a single rotatable seal ring having a pair of concentric seal faces to form a radially inner seal face and a radially outer seal face. The mechanical seal also includes first and second stationary seal rings, each having a seal face, where the seal face of the first stationary seal ring contacts the radially outer seal face of the rotatable seal ring and the seal face of the second stationary seal ring contacts the radially inner seal face of the rotatable seal ring. The seal also includes a sleeve adapted to be mounted about the rotating shaft and rotatably coupled thereto and to the rotatable seal ring, said sleeve having a flange portion that is configured for housing at least a portion of the rotatable seal ring, and a gland for housing at least partially the single rotary seal ring and the first and second stationary seal rings. Under positive and negative pressure conditions, the combined area of the seal piston areas are substantially identical to provide a balanced seal arrangement without requiring the use of axially movable components.
摘要翻译： 一种具有单个可旋转密封环的机械密封件，其具有一对同心密封面，以形成径向内部密封面和径向外部密封面。 机械密封还包括第一和第二固定密封环，每个具有密封面，其中第一固定密封环的密封面接触可旋转密封环的径向外部密封面，并且第二固定密封环接触件的密封面 可旋转密封环的径向内部密封面。 所述密封件还包括适于围绕所述旋转轴安装并可旋转地联接到所述可旋转密封环的套筒，所述套筒具有凸缘部分，所述凸缘部分构造成用于容纳所述可旋转密封环的至少一部分，以及用于 至少部分地容纳单个旋转密封环和第一和第二固定密封环。 在正压和负压条件下，密封活塞区域的组合面积基本上相同，以提供平衡的密封装置，而不需要使用可轴向移动的部件。
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公开(公告)号：US20010010416A1
公开(公告)日：2001-08-02
申请号：US09528266
申请日：2000-03-17
IPC分类号： F16J015/40
CPC分类号： F16J15/3488
摘要： A mechanical seal for providing fluid sealing between a housing and a rotatable shaft includes a first seal ring having a first seal face and a second seal ring having a second seal face. The first seal face further has a first portion and a second portion and the seal faces of the first and second seal rings are opposed to each other when assembled. The first seal ring or the second seal ring is adapted to rotate with the rotatable shaft, and the other seal ring is restrained from rotating. The seal faces are configured to produce a primarily hydrostatic fluid force between at least a portion of the first portion of the first seal face and at least a portion of the second seal face. In addition, the seal faces are configured to produce a hydrodynamic fluid force and a hydrostatic fluid force between at least a portion of the second portion of the first seal face and at least a portion of the second seal face.
摘要翻译： 用于在壳体和可旋转轴之间提供流体密封的机械密封件包括具有第一密封面的第一密封环和具有第二密封面的第二密封环。 第一密封面还具有第一部分和第二部分，并且当组装时第一和第二密封环的密封面彼此相对。 第一密封环或第二密封环适于与可旋转轴一起旋转，并且另一个密封环被限制旋转。 密封面被构造成在第一密封面的第一部分的至少一部分与第二密封面的至少一部分之间产生主要的静水流体力。 此外，密封面被构造成在第一密封面的第二部分的至少一部分与第二密封面的至少一部分之间产生流体动力流体力和静水流体力。
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公开(公告)号：US20040227297A1
公开(公告)日：2004-11-18
申请号：US10791514
申请日：2004-03-01
发明人： Henri V. Azibert
IPC分类号： F16J015/54
CPC分类号： F16J15/3484 , F16J15/3404 , F16J15/3448
摘要： A mechanical seal for providing a fluid-tight seal between a rotating shaft and a stationary housing comprises a first pair of seal members for sealing and separating a process fluid from a barrier fluid. The first pair of seal members comprises a first rotatable seal ring having a rotary seal face and a first stationary seal ring having a stationary seal face engaging the rotary seal face. The first pair of seal members further includes generally radially extending piston areas on the rear sides of the primary seal members for biasing seal faces together. The piston areas are defined by a movable shuttle member that is connected to the rotary seal ring and a sleeve, which is in turn connected to the rotating shaft. Under normal operating conditions, the shuttle is moved to a first position to allow the process fluid to exert a force on a first piston area to bias the seal faces together. Under reverse operating conditions, when the barrier fluid pressure is greater than the process fluid pressure, the shuttle member is moved to a second position where it exerts a force, along with the barrier fluid, on a second piston area to bias the seal faces together.
摘要翻译： 用于在旋转轴和固定壳体之间提供流体密封的机械密封件包括用于将过程流体与阻挡流体密封和分离的第一对密封构件。 第一对密封构件包括具有旋转密封面的第一可旋转密封环和具有与旋转密封面接合的固定密封面的第一固定密封环。 第一对密封构件还包括在主密封构件的后侧上的大致径向延伸的活塞区域，用于将密封面偏压在一起。 活塞区域由连接到旋转密封环和套筒的可移动梭子件限定，套筒又连接到旋转轴。 在正常操作条件下，梭子移动到第一位置以允许过程流体在第一活塞区域上施加力以将密封面偏压在一起。 在反向操作条件下，当阻挡流体压力大于过程流体压力时，往复运动构件移动到第二位置，在第二位置，其与阻流流体一起施加在第二活塞区域上以将密封面偏置在一起 。
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公开(公告)号：US20040169336A1
公开(公告)日：2004-09-02
申请号：US10376415
申请日：2003-02-28
发明人： Henri V. Azibert , Wayne E. Spritz
IPC分类号： F16J015/34
CPC分类号： F16J15/3464
摘要： A spacing mechanism is provided for locating at least one rotatable component relative to a stationary component of a mechanical seal. The spacing mechanism is configured to automatically disengage from the rotatable seal component, and/or its associated hardware, upon rotation of the rotatable seal component. The spacing mechanism may be configured to axially and/or radially locate one or more rotatable components relative to one or more stationary components and may be configured to automatically disengage from the rotatable seal component by the rotation of the rotatable seal component.
摘要翻译： 提供间隔机构用于相对于机械密封件的固定部件定位至少一个可旋转部件。 间隔机构被构造成在旋转的密封部件旋转时自动地从可旋转的密封部件和/或其相关联的硬件脱离。 间隔机构可以被配置为相对于一个或多个固定部件轴向和/或径向地定位一个或多个可旋转部件，并且可以被配置为通过可旋转密封部件的旋转而自动地与可旋转密封部件脱离接触。
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