Stern tube seal with a pressure control system to adjust to the changing
draft of ocean-going ships
    1.
    发明授权
    Stern tube seal with a pressure control system to adjust to the changing draft of ocean-going ships 失效
    船尾管密封带有压力控制系统,以适应远洋船舶的变化

    公开(公告)号:US5683278A

    公开(公告)日:1997-11-04

    申请号:US533145

    申请日:1995-09-25

    摘要: A system to adjust to the changing draft of ocean-going ships on the aft seal system equipped with several outwardly-directed gaskets and one inwardly-directed gasket, in which, between each two outwardly-directed gaskets a ring-shaped chamber is reserved, to which a feed line for compressed air is connected. Integrated into the feed line is a pressure control mechanism and a discharge channel which can periodically empty into the interior of the ship (bilge), whereby the pressure in the ring-shaped chamber is always maintained slightly below the outside water pressure. The system is characterized by the fact that an electronic draft measurement system is located on the ship's hull to supply electric signals which correspond to the current draft, which signals actuate the pressure control mechanism. In addition, for the lubrication system, there are two pressure control mechanisms pressurized by compressed air, and which are also actuated by the signals of the draft measurement system, whereby these pressure control mechanisms are each connected to the gas cushion of their own externally airtight containers which are pressurized with lubricant and in which a specified level is maintained, whereby the one container empties into a ring-shaped chamber between the inwardly-directed gasket and the outwardly-directed gasket, and the other container empties into the lubricant chamber.

    摘要翻译: 适用于配备有多个向外导向的垫圈和一个向内定向的垫片的船尾密封系统中远洋船舶变化的通风系统,其中保留了两个向外定向的垫圈之间的环形室, 连接压缩空气的进料管线。 集成在进料管中的是压力控制机构和排出通道,其能够周期性地进入到船的内部(舱底),从而环形室中的压力始终保持在低于外部水压的水平。 该系统的特征在于,电子牵伸测量系统位于船体上以提供对应于当前吃水的电信号,该信号启动压力控制机构。 此外,对于润滑系统,存在由压缩空气加压的两个压力控制机构,并且还由牵伸测量系统的信号致动,由此这些压力控制机构各自连接到其自身外部气密的气垫 用润滑剂加压并且保持特定水平的容器,由此一个容器在向内指向的垫圈和向外的垫圈之间排空到环形室中,而另一个容器被排空到润滑剂室中。

    Safety device for seal systems for propeller shafts on ships
    2.
    发明授权
    Safety device for seal systems for propeller shafts on ships 失效
    船舶用螺旋桨轴密封系统安全装置

    公开(公告)号:US5643026A

    公开(公告)日:1997-07-01

    申请号:US533554

    申请日:1995-09-25

    摘要: A safety device on an aft seal system equipped with at least two gaskets for a ship's propeller shaft, which propeller shaft is sealed with respect to the outside water and with respect to a lubricant chamber, and on which a ring-shaped chamber is reserved between each two gaskets, to which chamber are connected a feed line for compressed air and a discharge channel which can be emptied by means of a solenoid valve which opens and closes periodically. The pressure in the ring-shaped chamber is kept always slightly lower than the respective outside water pressure and the lubricant pressure by means of a pressure regulation mechanism. In the feed line to the ring-shaped chamber, downstream of the pressure regulation mechanism there is a solenoid valve, and downstream of that there is an airtight container with a float switch, whereby when the container is full of fluid due to a clogging of the discharge channel, the solenoid valve closes and thereby protects the pressure regulation mechanism and the other units against flooding.

    摘要翻译: 一种船尾密封系统上安装的安全装置,该系统配备有用于船舶传动轴的至少两个垫片,该传动轴相对于外部水和相对于润滑剂腔室被密封,并且其间保留有环形室 每个两个垫圈连接到压缩空气的进料管和排出通道,该排出通道可以通过周期性地打开和关闭的电磁阀排空。 通过压力调节机构,环形室中的压力总是略微低于相应的外部水压力和润滑剂压力。 在进入环形室的进料管中,压力调节机构的下游有一个电磁阀,下游有一个带浮子开关的气密容器,由此当容器充满流体时,由于堵塞 排出通道,电磁阀关闭,从而保护压力调节机构和其他单元免受淹水。