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Title: Fail save shut off valve for filtering systems employing candle filters

Abstract

The invention relates to an apparatus that acts as a fail save shut off valve. More specifically, the invention relates to a fail save shut off valve that allows fluid flow during normal operational conditions, but prevents the flow of fluids in the event of system failure upstream that causes over-pressurization. The present invention is particularly well suited for use in conjunction with hot gas filtering systems, which utilize ceramic candle filters. Used in such a hot gas system the present invention stops the flow of hot gas and prevents any particulate laden gas from entering the clean side of the system.

Inventors:
 [1]
  1. Fairmont, WV
Publication Date:
Research Org.:
Federal Energy Technology Center
Sponsoring Org.:
USDOE
OSTI Identifier:
908611
Patent Number(s):
6,981,516
Application Number:
10/263,279
Assignee:
The United States of America as represented by the United States Department of Energy (Washington, DC) OSTI
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

VanOsdol, John. Fail save shut off valve for filtering systems employing candle filters. United States: N. p., 2006. Web.
VanOsdol, John. Fail save shut off valve for filtering systems employing candle filters. United States.
VanOsdol, John. Tue . "Fail save shut off valve for filtering systems employing candle filters". United States. doi:. https://www.osti.gov/servlets/purl/908611.
@article{osti_908611,
title = {Fail save shut off valve for filtering systems employing candle filters},
author = {VanOsdol, John},
abstractNote = {The invention relates to an apparatus that acts as a fail save shut off valve. More specifically, the invention relates to a fail save shut off valve that allows fluid flow during normal operational conditions, but prevents the flow of fluids in the event of system failure upstream that causes over-pressurization. The present invention is particularly well suited for use in conjunction with hot gas filtering systems, which utilize ceramic candle filters. Used in such a hot gas system the present invention stops the flow of hot gas and prevents any particulate laden gas from entering the clean side of the system.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 03 00:00:00 EST 2006},
month = {Tue Jan 03 00:00:00 EST 2006}
}

Patent:

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  • The invention relates to an apparatus that acts as a fail save shut off valve. More specifically, the invention relates to a fail save shut off valve that allows fluid flow during normal operational conditions, but prevents the flow of fluids in the event of system failure upstream that causes over-pressurization. The present invention is particularly well suited for use in conjunction with hot gas filtering systems, which utilize ceramic candle filters. Used in such a hot gas system the present invention stops the flow of hot gas and prevents any particulate laden gas from entering the clean side ofmore » the system.« less
  • In a nuclear reactor installation a live-steam line leading from each steam generator through the containment is equipped with a fast-acting valve. If the pressure in the generator rises the valve operates as a safety valve and releases up to one-half of the aperture cross section of the valve, so that there is no danger of damage to the steam generators. According to the invention, the valve is operated for this purpose by two pistons by means of steam. The invention is of interest particularly for light-water reactors, e.g., pressurized-water reactors.
  • This patent describes, in an internal combustion engine, a crankcase gas flow control device located between the engine crankcase and the engine fuel-air induction. It comprises: a hollow housing, an apertured member supported at its outer edge by the housing. The apertured member forming an inlet and having an annular seating surface about the inlet aperture which faces the interior of the housing; a rod extending through the housing coaxially with the apertured inlet. The inlet forming member has a central boss portion engaging and supporting an end of the rod; a valve element in the housing and encircling themore » rod, the valve having a closed end normally seated against the seating surface to block gas flow through the inlet aperture; a coil type spring having one end axially fixed to the rod and another end engaging the valve element for yieldably urging the closed end against the seating surface.« less