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Title: Float level switch for a nuclear power plant containment vessel

Abstract

This invention is a float level switch used to sense rise or drop in water level in a containment vessel of a nuclear power plant during a loss of coolant accident. The essential components of the device are a guide tube, a reed switch inside the guide tube, a float containing a magnetic portion that activates a reed switch, and metal-sheathed, ceramic-insulated conductors connecting the reed switch to a monitoring system outside the containment vessel. Special materials and special sealing techniques prevent failure of components and allow the float level switch to be connected to a monitoring system outside the containment vessel.

Inventors:
 [1]
  1. (Clifton Park, NY)
Publication Date:
Research Org.:
Knolls Atomic Power Laboratory (KAPL), Niskayuna, NY
OSTI Identifier:
869019
Patent Number(s):
US 5262604
Assignee:
United States of America as represented by United States (Washington, DC) KAPL
DOE Contract Number:  
AC12-76SN00052
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
float; level; switch; nuclear; power; plant; containment; vessel; sense; rise; drop; water; loss; coolant; accident; essential; components; device; guide; tube; reed; inside; containing; magnetic; portion; activates; metal-sheathed; ceramic-insulated; conductors; connecting; monitoring; outside; special; materials; sealing; techniques; prevent; failure; allow; connected; water level; nuclear power; containment vessel; power plant; guide tube; reed switch; sealing technique; float level; level switch; magnetic portion; coolant accident; /200/335/

Citation Formats

Powell, James G. Float level switch for a nuclear power plant containment vessel. United States: N. p., 1993. Web.
Powell, James G. Float level switch for a nuclear power plant containment vessel. United States.
Powell, James G. Fri . "Float level switch for a nuclear power plant containment vessel". United States. doi:. https://www.osti.gov/servlets/purl/869019.
@article{osti_869019,
title = {Float level switch for a nuclear power plant containment vessel},
author = {Powell, James G.},
abstractNote = {This invention is a float level switch used to sense rise or drop in water level in a containment vessel of a nuclear power plant during a loss of coolant accident. The essential components of the device are a guide tube, a reed switch inside the guide tube, a float containing a magnetic portion that activates a reed switch, and metal-sheathed, ceramic-insulated conductors connecting the reed switch to a monitoring system outside the containment vessel. Special materials and special sealing techniques prevent failure of components and allow the float level switch to be connected to a monitoring system outside the containment vessel.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1993},
month = {Fri Jan 01 00:00:00 EST 1993}
}

Patent:

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