公开(公告)号：US4001078A

公开(公告)日：1977-01-04

申请号：US556318

申请日：1975-03-07

Applicant: David W. Doll

Inventor： David W. Doll

IPC: G21C7/11 ,  G21C7/14 ,  G21C7/08

CPC classification number: G21C7/11 ,  G21Y2002/201 ,  G21Y2002/50 ,  G21Y2004/30 ,  Y02E30/39

Abstract: A nuclear reactor system is described in which flexible control rods are used to enable insertion of the control rods into guide holes in the core which are distributed over an area larger than the cross section of the control rod penetration in the reactor pressure vessel. Guide tubes extend from the penetration and fan out to the guide holes for guiding the control rods from the penetration to the guide holes.

公开(公告)号：US3992255A

公开(公告)日：1976-11-16

申请号：US434722

申请日：1974-01-18

Applicant: John L. DeWesse

Inventor： John L. DeWesse

IPC: G21C7/14 ,  G21C7/12 ,  G21C7/08

CPC classification number: G21C7/12 ,  G21Y2002/303 ,  G21Y2002/50 ,  G21Y2004/30 ,  Y02E30/39 ,  Y10T74/20636

Abstract: A drive mechanism for a control rod of a nuclear reactor adapted for rapid refueling is disclosed which electromechanically grips and moves a control rod in a step-by-step manner. Locking apparatus is included with the drive mechanism which locks the control rod in position when it is fully withdrawn from the core. The locking apparatus prevents the drive mechanism from inadvertently dropping the control rod. Therefore, during rapid refueling of a core, when the control rods are withdrawn and stored within an upper core supporting structure, there is no possibility of a control rod being accidentally dropped so as to interface with the rapid refueling operations.

Abstract translation: 公开了一种用于快速加油的用于核反应堆的控制棒的驱动机构，其以机械方式将控制杆以一步一步的方式夹持并移动。 锁定装置包括在驱动机构中，当其从芯部完全拉出时将控制杆锁定就位。 锁定装置防止驱动机构无意中掉落控制杆。 因此，在芯的快速加油期间，当将控制棒取出并储存在上芯支撑结构内时，控制杆不可能被意外掉落以便与快速加油操作相接触。

公开(公告)号：US3941413A

公开(公告)日：1976-03-02

申请号：US566485

申请日：1975-04-09

Applicant: Melvin L. Johnson ,  Bruce M. Shawver

Inventor： Melvin L. Johnson ,  Bruce M. Shawver

IPC: G21C7/12 ,  G21C19/105 ,  B66C3/16 ,  G21C7/08

CPC classification number: G21C19/105 ,  G21C7/12 ,  G21Y2002/101 ,  G21Y2002/205 ,  G21Y2002/206 ,  G21Y2002/30 ,  G21Y2004/30 ,  G21Y2004/301 ,  Y02E30/39 ,  Y10S294/906

Abstract: A simple, reliable, and fast-acting means for releasing a control element and allowing it to be inserted rapidly into the core region of a nuclear reactor for scram purposes. A latch mechanism grips a coupling head on a nuclear control element to connect the control element to the control drive assembly. The latch mechanism is closed by tensioning a cable or rod with an actuator. The control element is released by de-energizing the actuator, providing fail-safe, rapid release of the control element to effect reactor shutdown. A sensing rod provides indication that the control element is properly positioned in the latch. Two embodiments are illustrated, one involving a collet-type latch mechanism, the other a pliers-type latch mechanism with the actuator located inside the reactor vessel.

Abstract translation: 用于释放控制元件并允许其快速插入核反应堆的核心区域以用于混乱目的的简单，可靠和快速的方式。 闩锁机构夹紧核控制元件上的联接头以将控制元件连接到控制驱动组件。 通过用致动器张紧电缆或杆来闭合闩锁机构。 通过使致动器断电来释放控制元件，提供控制元件的故障安全，快速释放以实现反应堆停机。 感测杆提供控制元件适当地定位在闩锁中的指示。 示出了两个实施例，一个涉及夹头型闩锁机构，另一个是具有位于反应器容器内部的致动器的钳子型闩锁机构。

公开(公告)号：US3905634A

公开(公告)日：1975-09-16

申请号：US47618474

申请日：1974-06-04

Applicant: US ENERGY

Inventor： JOHNSON MELVIN L ,  SHAWVER BRUCE M

IPC: G21C7/14 ,  G21C7/12 ,  G21C19/105 ,  G21C7/08

CPC classification number: G21C7/12 ,  G21C19/105 ,  G21Y2002/101 ,  G21Y2002/205 ,  G21Y2002/206 ,  G21Y2002/30 ,  G21Y2004/30 ,  G21Y2004/301 ,  Y02E30/39 ,  Y10S294/906

Abstract: A simple, reliable, and fast-acting means for releasing a control element and allowing it to be inserted rapidly into the core region of a nuclear reactor for scram purposes. A latch mechanism grips a coupling head on a nuclear control element to connect the control element to the control drive assembly. The latch mechanism is closed by tensioning a cable or rod with an actuator. The control element is released by de-energizing the actuator, providing fail-safe, rapid release of the control element to effect reactor shutdown. A sensing rod provides indication that the control element is properly positioned in the latch. Two embodiments are illustrated, one involving a collettype latch mechanism, the other a pliers-type latch mechanism with the actuator located inside the reactor vessel.

公开(公告)号：US3861999A

公开(公告)日：1975-01-21

申请号：US77555868

申请日：1968-11-13

Applicant: COMBUSTION ENG

Inventor： ZMOLA PAUL C ,  RICKERT ROYCE J

IPC: G21C1/08 ,  G21C3/328 ,  G21C7/08 ,  G21C15/02

CPC classification number: G21C1/08 ,  G21C3/328 ,  G21C7/08 ,  G21C15/02 ,  G21Y2002/201 ,  G21Y2004/30 ,  G21Y2004/302 ,  Y02E30/38 ,  Y02E30/39

Abstract: A nuclear reactor cooled by a moderating fluid and a method of operating such a reactor wherein a portion of the coolant directed through the reactor and over the fuel elements is conveyed in bypass relation with the first portion of the reactor core such that it maintains generally its initial or entering temperature. This bypassed portion is then introduced at spaced intervals into regions of high power density so as to decrease the enthalpy of the coolant at these regions and thereby improve the margin to burnout and, accordingly, improve the power generation capability of the reactor. Flow management is obtained in an open core by regulating the bypassed portion of the coolant in a manner such that hotter core regions receive a greater proportion of the total flow than colder core regions thereby further improving the thermal margin and accordingly the power generating capability of the reactor.

Abstract translation: 通过调节流体冷却的核反应堆和操作这种反应器的方法，其中引导通过反应器和燃料元件的冷却剂的一部分与反应堆堆芯的第一部分以旁路的方式输送，使得其通常维持在 初始或进入温度。 然后将该旁路部分以间隔的间隔引入高功率密度的区域，以便降低这些区域处的冷却剂的焓，从而提高燃尽的余量，从而提高反应器的发电能力。

公开(公告)号：US3706921A

公开(公告)日：1972-12-19

申请号：US3706921D

申请日：1968-08-08

Applicant: DIAMOND POWER SPECIALITY

Inventor： ROSEN PHILIP J

IPC: G21C7/36 ,  G21C17/10 ,  G05B9/02 ,  G21C7/08

CPC classification number: G21C7/36 ,  G21C17/10 ,  Y02E30/39

Abstract: A control system for controlling the relative position of a plurality of control rods within a nuclear reactor, thus controlling the energy output of the nuclear reactor. The control system includes a single rod control subsystem for controlling the motion of the individual rods within the nuclear material and a group control subsystem for controlling a plurality of rods of a group. The system includes a circuit for precluding any single rods or group of rods from being actuated in a direction opposite to that commanded to achieve synchronism of that particular rod. Thus, the rods moving from a first position to a second position, a reference position is established which is the average of the position of all the rods and the only rods which will move to position 2 will be those which deviate further from position 2 than the reference level. The system also includes a fault detection system.

Abstract translation: 控制系统，用于控制核反应堆内多个控制棒的相对位置，从而控制核反应堆的能量输出。 控制系统包括用于控制核材料内的各个杆的运动的单杆控制子系统和用于控制组的多个杆的组控制子系统。

公开(公告)号：US3625816A

公开(公告)日：1971-12-07

申请号：US3625816D

申请日：1969-06-26

Applicant: SIEMENS AG

Inventor： ALEITE WERNER ,  BORTOLAZZI KURT

IPC: G21C7/14 ,  G21C7/18 ,  G21C7/20 ,  G21C7/08

CPC classification number: G21C7/14 ,  G21C7/18 ,  G21C7/20 ,  G21Y2002/201 ,  G21Y2002/50 ,  G21Y2004/30 ,  Y02E30/39

Abstract: Control rod assembly for nuclear reactors includes a plurality of finger control rods carried in common by a spiderlike holder, mechanical drive mechanism for displacing the holder vertically to insert the finger control rods into a plurality of fuel elements, the finger control rods containing neutron-absorbing substance along at least part of the length thereof, means for mounting a plurality of neutron-absorbing shutoff rods outside the reactor core, the mounting means being releasable during abnormal operation of the reactor for inserting the shutoff rods into the fuel elements and entrainment means operatively connected to and displaceable with the finger control rod holder and entrainable by the entrainment means in released condition of the mounting means.

公开(公告)号：US3396077A

公开(公告)日：1968-08-06

申请号：US57941466

申请日：1966-09-14

Applicant: EURATOM

Inventor： BODNARESCU MUSAT V

IPC: G21C1/30 ,  G21C7/08 ,  G21C7/10 ,  G21G1/08

CPC classification number: G21G1/08 ,  G21C1/303 ,  G21C7/08 ,  G21C7/10 ,  Y02E30/39

公开(公告)号：US3391058A

公开(公告)日：1968-07-02

申请号：US48406965

申请日：1965-08-31

Applicant: SULZER AG

Inventor： JACQUES GILBERT

IPC: G21C7/08 ,  G21C7/18 ,  G21C7/36

CPC classification number: G21C7/36 ,  G21C7/08 ,  G21C7/18 ,  G21Y2002/201 ,  G21Y2004/30 ,  G21Y2004/40 ,  G21Y2004/401 ,  Y02E30/39

公开(公告)号：US3347747A

公开(公告)日：1967-10-17

申请号：US7595960

申请日：1960-12-15

Applicant: COMBUSTION ENG

Inventor： WEST JOHN M ,  FRANK BEVILACQUA ,  SNIDER ALBERT R

IPC: G21C7/08 ,  G21C7/16

CPC classification number: G21C7/16 ,  G21C7/08 ,  G21Y2002/201 ,  G21Y2004/30 ,  Y02E30/39