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公开(公告)号：US06155572A
公开(公告)日：2000-12-05
申请号：US13698
申请日：1998-01-26
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 is a non-contacting seal that provides for the introduction of a barrier fluid between the seal faces. A first surface of the first seal ring and a first surface of the second seal ring are exposed to the process fluid. An opening force is developed between the first and second seal faces that inhibits contact between the seal faces. The seal further includes a system for regulating the opening force on the seal face as a function of the difference between the pressure of the fluid introduced between the seal faces, i.e., the barrier fluid, and the pressure of the process fluid.
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。 密封件是一种非接触式密封件，用于在密封面之间引入阻隔流体。 第一密封环的第一表面和第二密封环的第一表面暴露于工艺流体。 在第一和第二密封面之间产生阻止密封面之间接触的打开力。 密封件还包括用于根据在密封面之间引入的流体压力（即阻挡流体）与过程流体的压力之间的差异来调节密封面上的打开力的系统。
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公开(公告)号：US5333882A
公开(公告)日：1994-08-02
申请号：US913292
申请日：1992-07-14
IPC分类号： F16J15/34
CPC分类号： F16J15/3448 , Y10S277/93
摘要： A mechanical seal assembly having dual seals in which the seal faces of the primary seal members remain essentially perpendicular to the shaft of the equipment being sealed regardless of any misalignment between the shaft and the equipment has a sleeve for mounting on the shaft to provide a support structure wherein all primary seal member faces are aligned with respect to this support structure regardless of loading. The primary seals are biased toward the support structure by the combination of net hydraulic pressure at the mated seal faces plus steady bias from a minimally flexing biasing source, such as compression springs, at one end of the sleeve. Another embodiment further includes a gland mounted to the equipment concentrically to the equipment shaft and an axially floating annular flow ring located within the gland. The ring non-rotatably mates with the primary seal members and the gland, and can shift axially. The ring supplies a fluid flow channel associated with the shaft vanes and which can travel with the vanes to accommodate shaft endplay.
摘要翻译： 具有双重密封件的机械密封组件，其中主密封构件的密封面保持基本上垂直于设备的轴被密封，而不管轴和设备之间的任何不对准是否具有用于安装在轴上以提供支撑件的套筒 结构，其中所有主密封构件面相对于该支撑结构对准，而与加载无关。 主密封件通过在配合的密封面处的净液压与来自套筒一端的最小弯曲偏压源（例如压缩弹簧）的稳定偏压的组合而偏压到支撑结构。 另一个实施例还包括将设备同心地安装到设备上的压盖和位于压盖内的轴向浮动的环形流动环。 环与主密封构件和密封套不可旋转地配合，并且可以轴向移动。 环提供与轴叶片相关联的流体流动通道，并且其可以与叶片一起运动以适应轴末端。
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公开(公告)号：US12085109B2
公开(公告)日：2024-09-10
申请号：US17340545
申请日：2021-06-07
摘要： A mechanical seal that employs a lock ring assembly having associated therewith a locking mechanism. The locking mechanism can include a nut element, such as a barrel nut, that allows an associated bolt element to adjust a tightening load and position while clamping occurs of the components of the mechanical seal. This adjustment flexibility removes or reduces unwanted bending stresses in the bolt element, thus allowing for more torque to translate directly to the lock ring. The barrel nut allows for more material to remain in the lock ring, thus providing for additional overall strength relative to a traditional locking element. The lock ring also includes a plurality of flex regions in the form of notches that allow the lock ring to flex when the main body is tightened about the shaft.
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公开(公告)号：US12060803B2
公开(公告)日：2024-08-13
申请号：US17868615
申请日：2022-07-19
IPC分类号： F01D25/18 , F01D11/00 , F01D11/02 , F16J15/447
CPC分类号： F01D25/183 , F01D11/003 , F01D11/02 , F16J15/447 , F05D2240/55
摘要： A split labyrinth seal assembly having split stationary and rotary sealing elements, and a split clamping mechanism. The clamping mechanism is configured to secure the rotary element to a rotating shaft. The rotary element can also include an integrally formed valve element that moves between a contacting and a non-contacting position in response to rotation of the shaft. The rotary element and the clamping mechanism can have surface features associated therewith to promote nesting between the components.
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公开(公告)号：US11834583B2
公开(公告)日：2023-12-05
申请号：US15931140
申请日：2020-05-13
发明人： Muni Ramakrishnan
IPC分类号： C09D163/04 , C09D163/00 , C08F220/10 , C08F230/08 , C08G59/24 , C08G59/30 , C08G59/40 , C08K3/22 , C08K3/26 , C08K3/36 , C08K5/17 , C09D5/18 , B32B15/092 , B32B27/18 , B32B27/26 , B32B27/38
CPC分类号： C09D163/04 , C08F220/10 , C08F230/08 , C08G59/245 , C08G59/306 , C08G59/4014 , C08K3/22 , C08K3/26 , C08K3/36 , C08K5/17 , C09D5/18 , C08K2003/2227 , C08K2003/2241 , C08K2003/265
摘要： A protective coating, comprising a binder component mixture having a reactive mixture portion and a filler mixture portion, wherein the reactive mixture portion includes an epoxy resin part and an epoxy silane part, wherein the epoxy silane part is present in an amount of about 10 wt % of the reactive mixture portion and about 40 wt % of the reactive mixture portion; and a curing component having one or more amine curing compounds, wherein the amine curing compound of the curing component comprises an unmodified diamino cyclohexane (DACH) that is present in an amount between about 70 wt % and about 100 wt % of the curing component.
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公开(公告)号：US11608898B2
公开(公告)日：2023-03-21
申请号：US17339397
申请日：2021-06-04
IPC分类号： F16J15/34
摘要： A mechanical seal that employs an axially movable spring holder plate that engages a sealing element, such as an O-ring, associated with a stationary seal ring. In turn, the stationary seal ring can have a sealing face that engages with a sealing face of a rotary seal ring. The rotary seal ring can also have a sealing element, such as an O-ring, associated therewith. The O-rings are initially disposed in an unloaded position where they are not radially compressed and hence the ends do not expand circumferentially past the end faces of the holder or gland segments. The spring holder plate can be moved axially by tightening selected bolts associated therewith. When moved axially, the spring holder plate moves the stationary seal ring and the O-ring associated therewith in an axially inboard direction, thus placing the O-rings in a loaded position, where the O-rings are radially compressed.
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17.发明授权公开(公告)号：US10352457B2
公开(公告)日：2019-07-16
申请号：US14100806
申请日：2013-12-09
发明人： Edwin Cid
摘要： A split mechanical seal for mounting to a housing containing a rotating shaft, including a gland assembly, a holder assembly having an inner surface and an opposed outer surface, and a rotary seal ring that is sized and configured for seating within the space defined by the holder assembly. A detent groove is formed in the inner surface of the holder assembly for at least partially seating a portion of a sealing element, and another detent groove is formed in an outer surface of the rotary seal ring for at least partially seating another portion of the sealing element. The holder detent groove and the seal ring detent groove in combination are configured to seat and to retain the sealing element.
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公开(公告)号：US08720899B2
公开(公告)日：2014-05-13
申请号：US13335235
申请日：2011-12-22
申请人： Henri Azibert , Steven Bernoth
发明人： Henri Azibert , Steven Bernoth
IPC分类号： F16J15/54
CPC分类号： F16J15/54
摘要： A dual seal accommodates radial and axial movement, and accommodates positive and negative pressure differentials, when in sealing engagement about a rotating shaft.
摘要翻译： 当与旋转轴密封接合时，双重密封件适应径向和轴向运动，并且容纳正压差和负压差。
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公开(公告)号：US07370864B2
公开(公告)日：2008-05-13
申请号：US10791514
申请日：2004-03-01
申请人： Henri V. Azibert
发明人： Henri V. Azibert
IPC分类号： F16J15/34
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 and a shuttle. 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 shuttle member is positioned relative to the rotary seal ring or the stationary seal ring and axially movable between a first position and a second position in response to changing pressure conditions within the mechanical seal thereby maintaining the mechanical seal regardless of the change in pressure conditions.
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密封和分离过程流体与阻挡流体和梭子的第一对密封构件。 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。 梭形构件相对于旋转密封环或固定密封环定位，并且响应于机械密封件内的变化的压力条件而可在第一位置和第二位置之间轴向移动，从而保持机械密封，而与压力条件的变化无关。
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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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