Temperature actuated automatic safety rod release

Hutter, Ernest; Pardini, John A; Walker, David E

Title: Temperature actuated automatic safety rod release

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Abstract

A temperature-actuated apparatus is disclosed for releasably supporting a safety rod in a nuclear reactor, comprising a safety rod upper adapter having a retention means, a drive shaft which houses the upper adapter, and a bimetallic means supported within the drive shaft and having at least one ledge which engages a retention means of the safety rod upper adapter. A pre-determined increase in temperature causes the bimetallic means to deform so that the ledge disengages from the retention means, whereby the bimetallic means releases the safety rod into the core of the reactor.

Inventors:

Hutter, Ernest ^[1]; Pardini, John A ^[2]; Walker, David E ^[3]

Wilmette, IL
Brookfield, IL
Naperville, IL

Issue Date:: 1987-01-01

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

OSTI Identifier:: 866200

Patent Number(s):: 4654192

Assignee:: United States of America as represented by United States (Washington, DC)

Patent Classifications (CPCs):: Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

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

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Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T403/23 - with ambient condition responsive control means
Y10T403/21 - Utilizing thermal characteristic, e.g. , expansion or contraction, etc.

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

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DOE Contract Number:: W-31109-ENG-38

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: temperature; actuated; automatic; safety; rod; release; temperature-actuated; apparatus; disclosed; releasably; supporting; nuclear; reactor; comprising; upper; adapter; retention; means; drive; shaft; houses; bimetallic; supported; ledge; engages; pre-determined; increase; causes; deform; disengages; whereby; releases; core; upper adapter; safety rod; drive shaft; nuclear reactor; automatic safety; rod release; retention means; temperature actuated; /376/285/403/976/

Citation Formats


                    Hutter, Ernest, Pardini, John A, and Walker, David E. Temperature actuated automatic safety rod release.  United States: N. p., 1987. 
        Web.

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                    Hutter, Ernest, Pardini, John A, & Walker, David E. Temperature actuated automatic safety rod release.  United States.

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                    Hutter, Ernest, Pardini, John A, and Walker, David E. Thu .  
        "Temperature actuated automatic safety rod release".  United States.  https://www.osti.gov/servlets/purl/866200.

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@article{osti_866200,

  title        = {Temperature actuated automatic safety rod release},

  author       = {Hutter, Ernest and Pardini, John A and Walker, David E},

  abstractNote = {A temperature-actuated apparatus is disclosed for releasably supporting a safety rod in a nuclear reactor, comprising a safety rod upper adapter having a retention means, a drive shaft which houses the upper adapter, and a bimetallic means supported within the drive shaft and having at least one ledge which engages a retention means of the safety rod upper adapter. A pre-determined increase in temperature causes the bimetallic means to deform so that the ledge disengages from the retention means, whereby the bimetallic means releases the safety rod into the core of the reactor.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1987},

  month        = {1}

}

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Temperature actuated automatic safety rod release

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A temperature-actuated apparatus is disclosed for releasably supporting a safety rod in a nuclear reactor, comprising a safety rod upper adapter having a retention means, a drive shaft which houses the upper adapter, and a bimetallic means supported within the drive shaft and having at least one ledge which engages a retention means of the safety rod upper adapter. A pre-determined increase in temperature causes the bimetallic means to deform so that the ledge disengages from the retention means, whereby the bimetallic means releases the safety rod into the core of the reactor.
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