Apparatus for installing and removing a control rod drive in a n

Details Apparatus for installing and removing a control rod drive in a n Apparatus for installing and removing a control rod drive in a n

1986-12-23

1989-01-31

Jordan, Charles T.

Induced nuclear reactions: processes, systems, and elements

Handling of fission reactor component structure within...

G21C 1920

Patent

active

048014222

ABSTRACT:
Apparatus for installing and removing a control rod drive from beneath the pressure vessel of a nuclear reactor, including an elevator carriage for carrying the control rod drive in a generally horizontal position and a single winch mounted on a cart for swinging the control rod drive between horizontal and vertical positions and for raising and lowering the drive when it is in a vertical position. A pneumatic cylinder provides the final lifting action for seating and removing the control rod drive. The lower end of the control rod drive is supported on the elevator cradle by a self-centering bearing which permits the horizontal position of the drive to be adjusted for final alignment with the drive housing. The pneumatic cylinder is mounted on a swinging arm which allows the cylinder to remain in axial alignment with the control rod drive as it is moved horizontally. The upper end of the control rod drive is retained on the elevator by a support roller which automatically swings out of the way and re-engages the drive as it is installed and removed. A pair of winch cables are employed for safety, and loading of the cables is equalized by interconnected hydraulic cylinders connected between the cables and the lower end of the elevator.

REFERENCES:
patent: 3836430 (1974-09-01), Frisch et al.
patent: 4053355 (1977-10-01), Vuckovich
patent: 4158600 (1979-06-01), Akimoto et al.
patent: 4175000 (1979-11-01), Jabsen
patent: 4288290 (1981-09-01), Saima et al.
patent: 4292133 (1981-09-01), Sasaki et al.
patent: 4518559 (1985-05-01), Fischer et al.
Electric Power Research Institute Final Report, EPRI NP-3895, Project 2410-1, Mar. 1985.

Affiliated with

Also associated with

Rating

Apparatus for installing and removing a control rod drive in a n does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for installing and removing a control rod drive in a n, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for installing and removing a control rod drive in a n will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-176634