Nuclear reactor control apparatus

Title: Nuclear reactor control apparatus

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Abstract

Nuclear reactor safety rod release apparatus comprises a ring which carries detents normally positioned in an annular recess in outer side of the rod, the ring being held against the lower end of a drive shaft by magnetic force exerted by a solenoid carried by the drive shaft. When the solenoid is de-energized, the detent-carrying ring drops until the detents contact a cam surface associated with the lower end of the drive shaft, at which point the detents are cammed out of the recess in the safety rod to release the rod from the drive shaft. In preferred embodiments of the invention, an additional latch is provided to release a lower portion of a safety rod under conditions that may interfere with movement of the entire rod.

Inventors:

Sridhar, Bettadapur N ^[1]

Cupertino, CA

Issue Date:: 1983-10-25

OSTI Identifier:: 864754

Patent Number(s):: 4411857

Application Number:: 06/254,709

Assignee:: Sridhar, Bettadapur N. (Cupertino, CA)

Patent Classifications (CPCs):: Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS

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Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y02E30/30 - Nuclear fission reactors

G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
G21C9/02 - Means for effecting very rapid reduction of the reactivity factor under fault conditions, e.g. reactor fuse
G21C7/12 - Means for moving control elements to desired position

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Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: nuclear; reactor; control; apparatus; safety; rod; release; comprises; carries; detents; normally; positioned; annular; recess; outer; held; drive; shaft; magnetic; force; exerted; solenoid; carried; de-energized; detent-carrying; drops; contact; surface; associated; cammed; preferred; embodiments; additional; latch; provided; portion; conditions; interfere; movement; entire; reactor safety; magnetic force; annular recess; release apparatus; reactor control; safety rod; preferred embodiments; drive shaft; apparatus comprises; nuclear reactor; preferred embodiment; force exerted; control apparatus; apparatus comprise; rod release; normally positioned; /376/976/

Citation Formats


                    Sridhar, Bettadapur N. Nuclear reactor control apparatus.  United States: N. p., 1983. 
        Web.

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                    Sridhar, Bettadapur N. Nuclear reactor control apparatus.  United States.

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                    Sridhar, Bettadapur N. Tue .  
        "Nuclear reactor control apparatus".  United States.  https://www.osti.gov/servlets/purl/864754.

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@article{osti_864754,

  title        = {Nuclear reactor control apparatus},

  author       = {Sridhar, Bettadapur N},

  abstractNote = {Nuclear reactor safety rod release apparatus comprises a ring which carries detents normally positioned in an annular recess in outer side of the rod, the ring being held against the lower end of a drive shaft by magnetic force exerted by a solenoid carried by the drive shaft. When the solenoid is de-energized, the detent-carrying ring drops until the detents contact a cam surface associated with the lower end of the drive shaft, at which point the detents are cammed out of the recess in the safety rod to release the rod from the drive shaft. In preferred embodiments of the invention, an additional latch is provided to release a lower portion of a safety rod under conditions that may interfere with movement of the entire rod.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1983},

  month        = {10}

}

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