公开(公告)号：US3871176A

公开(公告)日：1975-03-18

申请号：US33925673

申请日：1973-03-08

Applicant: COMBUSTION ENG

Inventor： SCHUKEI GLEN ELWIN

IPC: F16K31/02 ,  F16K31/12

CPC classification number: F16K31/02

Abstract: A large valve actuator assembly driven by an electrically conducting liquid enclosed in a hermetically sealed housing. The conducting liquid contained within the housing is circulated by electromagnetic forces without housing penetrations. The circular flow of the liquid impinges on a vane structure causing it to rotate. The vane structure''s rotation is mechanically translated from a rotary to a linear motion for valve stem actuation. The electromagnetic forces operate on principles of electromagnetic induction similar to those found in the operation of an electric motor. A circularly advancing magnetic field is imposed on the electrically conducting liquid. Magnetic coupling between the liquid and the advancing field cause the liquid to rotate and in so doing impart rotation to the vane structure.

Abstract translation: 由封闭在气密密封的壳体中的导电液体驱动的大型阀致动器组件。 容纳在壳体内的导电液体通过没有壳体穿透的电磁力循环。 液体的圆形流动撞击导致其旋转的叶片结构。 叶片结构的旋转机械地从旋转运动转换为直线运动，用于阀杆致动。 电磁力的作用与电磁感应原理相似，与电动机的运行相似。 对导电液体施加循环前进的磁场。 液体和前进场之间的磁耦合导致液体旋转，并且这样使得叶片结构旋转。

公开(公告)号：US3898467A

公开(公告)日：1975-08-05

申请号：US45172574

申请日：1974-03-18

Applicant: COMBUSTION ENG

Inventor： SCHUKEI GLEN ELWIN ,  KOWLES JOSEPH EDWARD

IPC: G21C17/02 ,  G01N23/06 ,  G01N23/09 ,  G01T3/00

CPC classification number: G01N23/09

Abstract: An apparatus and method of operation thereof, to continuously monitor and control the neutron absorption properties of chemical shim used in regulating reactivity of a pressurized water nuclear reactor. Coolant-moderator fluid, containing soluble chemical shim with a neutron absorption property is continuously passed through a chamber having at least one neutron detector spaced from a neutron source of known strength. Utilizing the neutron absorptiometery principle, a signal relating to the concentration of the chemical shim in the coolant-moderator is derived. In addition, the temperature of the sample of coolant is obtained and a temperature compensation signal is generated. The signal related to chemical shim concentration is modified by the temperature compensation signal to correct for temperature related effects. The corrected signal is then applied to a readout and alarm device so that constant monitoring of the shim concentration may be accomplished; additionally, the signal may be applied to maintain the concentration of the chemical shim in the coolant-moderator at a desired level.

Abstract translation: 一种操作装置及其方法，用于连续监测和控制用于调节加压水核反应堆反应性的化学垫片的中子吸收性能。 包含具有中子吸收特性的可溶性化学垫片的冷却剂 - 调节剂流体连续通过具有至少一个与已知强度的中子源间隔开的中子探测器的室。 利用中子吸收光学学原理，得出与冷却剂 - 调节剂中的化学垫片的浓度有关的信号。 此外，获得冷却剂样品的温度，并产生温度补偿信号。 与化学垫片浓度相关的信号由温度补偿信号修改，以纠正温度相关的影响。 然后将校正的信号施加到读出和报警装置，从而可以实现对垫片浓度的恒定监测; 此外，可以施加信号以将冷却剂 - 调节剂中的化学垫片的浓度保持在期望的水平。