公开(公告)号：US4402350A

公开(公告)日：1983-09-06

申请号：US334004

申请日：1981-12-23

申请人： Thomas M. Ehret ,  Gerard E. Ovieve

发明人： Thomas M. Ehret ,  Gerard E. Ovieve

IPC分类号： B63B27/24 ,  B66C13/02 ,  B67D9/00 ,  B67D9/02 ,  B65B57/00

CPC分类号： B67D9/02 ,  B63B27/24 ,  B66C13/02 ,  Y10T137/8242 ,  Y10T137/8807

摘要： A system for sensing the position in space of the outer end of an articulated loading arm connected to a marine tanker or other transport vessel, for predicting if the arm will move outside a safe operating envelope, for discontinuing the flow of fluid before the arm reaches an unsafe area, and for disconnecting the arm from the vessel when the arm reaches an unsafe area. The sensing system includes means for determining various angles representative of the orientation of the limbs of the loading arm, and a computer for using these angles to compute the spatial position of the arm's outer end. The computer uses the spatial position and movement of the loading arm to predict future positions of the outboard end of the arm, and to determine if the loading operation should be terminated and the arm disconnected from the vessel. When the computer predicts that the loading arm may move outside a first operating envelope an alarm is sounded. When the computer predicts that the arm may move outside a second operating envelope the flow of fluids through the arm is automatically discontinued, and if the computer predicts that the loading arm may move outside a third operating envelope the arm is automatically disconnected from the vessel.

摘要翻译： 用于感测连接到船用油罐车或其他运输船舶的铰接装载臂的外端的空间中的位置的系统，用于预测臂是否将移动到安全操作外壳外面，用于在臂到达之前停止流体流动 一个不安全的区域，并且当臂到达不安全区域时，用于将臂从船上断开。 感测系统包括用于确定表示装载臂的四肢的取向的各种角度的装置，以及用于使用这些角度来计算臂的外端的空间位置的计算机。 计算机使用装载臂的空间位置和运动来预测臂的外侧端的未来位置，并且确定装载操作是否应当终止并且臂与船舶断开连接。 当计算机预测装载臂可以移动到第一操作信封之外时，发出警报。 当计算机预测臂可以移动到第二操作外壳之外时，自动停止通过臂的流体流，并且如果计算机预测装载臂可以移动到第三操作信封之外，则臂将与该容器自动断开连接。

公开(公告)号：US4355827A

公开(公告)日：1982-10-26

申请号：US205124

申请日：1980-11-10

申请人： Thomas M. Ehret

发明人： Thomas M. Ehret

IPC分类号： F16J15/16 ,  F16L27/08 ,  F16L17/00

CPC分类号： F16L27/0828 ,  F16J15/164 ,  Y10S277/91 ,  Y10S277/931

摘要： A swivel joint for connecting together a pair of pipes and for transferring fluid between the pipes at ambient temperatures and at cryogenic temperatures. A cryogenic seal between the joint's relatively rotatable inner and outer elements prevents fluid leakage at cryogenic temperatures, and an ambient seal assembly between the joint elements provides a seal at ambient temperatures and prevents fluids from contacting the cryogenic seal. The ambient seal assembly includes an elastomeric O-ring retained in the outer element, and an annular sealing ring fastened to the inner element and spring-biased towards the O-ring. At ambient temperatures the sealing ring is held against the O-ring in a fluid-tight manner. As the temperature decreases, a plurality of rods or wires, or an annular sleeve, having a high coefficient degree of linear expansion, contracts and pulls the annular sealing ring away from the adjacent O-ring to prevent wear of, and other damage to, the O-ring at low temperatures.

摘要翻译： 用于将一对管道连接在一起并用于在环境温度和低温下在管道之间传送流体的旋转接头。 接头相对可旋转的内部和外部元件之间的低温密封防止在低温温度下的流体泄漏，并且接头元件之间的环境密封组件在环境温度下提供密封并防止流体接触低温密封。 环境密封组件包括保持在外部元件中的弹性体O形环，以及固定到内部元件并朝向O形环弹性偏压的环形密封环。 在环境温度下，密封环以流体密封的方式固定在O形环上。 当温度降低时，具有高系数线性膨胀的多个杆或线或环形套筒收缩并将环形密封环拉离相邻的O形环，以防止相邻O形环的磨损和其它损坏， O型圈在低温下。