Ventilated enclosure for gas cylinders and manifolds
AssigneeAir Products and Chemicals, Inc.
InventorsBenjamin Lee Hertzler, Joseph Giagnacova
Life of this patent
Estimating the term…
Abstract
Method and apparatus for increasing the velocity of sweeping gas as it moves across a gas delivery system contained in a hazardous material delivery enclosure, e.g. a gas cabinet valve manifold box or gas isolation box. An exhaust port with selectively opened and closed apertures juxtaposed to non-soldered or non-welded fittings or connections in the gas delivery system is placed in or on said enclosure to create an accelerated and directed flow of sweeping gas across the non-soldered or non-welded fittings or connections.
Claims14
In an enclosure adapted to contain one of gas storage and/or gas delivery systems for delivery of process gas under pressure to a point of use wherein the enclosure is adapted to be continuously swept with ambient atmosphere to remove process gas inadvertently released inside said enclosure, the improvement comprising:
- means to direct ambient atmosphere entering said enclosure over and around gas distribution or flow control equipment contained in said enclosure, said means adapted to accelerate the flow of ambient atmosphere, over and around non-soldered or non-welded connections present in distribution or flow control equipment in said enclosure.
In a gas cabinet for use to contain storage receptacles and delivery systems for dangerous gases said cabinet having means to continuously sweep interior portions of the cabinet with ambient atmosphere, the improvement comprising:
- means to direct ambient atmosphere entering said gas cabinet over and around gas distribution or flow control equipment contained in said cabinet, said means adapted to accelerate the flow of ambient atmosphere, over and around non-soldered or non-welded connections present in said distribution or flow control equipment.
A method for manufacturing an enclosure used to contain one of gas storage and/or gas delivery systems disposed inside said enclosure said enclosure having means to introduce a sweeping gas used to remove leakage gas from said gas storage and/or gas delivery systems, comprising the steps of:
- providing a sweeping gas exhaust port in a portion of said enclosure, said port positioned adjacent said gas delivery equipment;
- and
- installing flow control means in said exhaust port to direct an accelerated flow of sweeping gas across selected portions of said gas delivery equipment prior to passing into said exhaust port.
A method for increasing the flow of sweeping gas used to remove leakage gases from an enclosure used to contain one of gas storage and/or gas delivery systems disposed inside said enclosure comprising the steps of:
- providing a sweeping gas exhaust port in a portion of said enclosure, said port positioned adjacent said gas delivery equipment;
- and
- using flow control means installed in said exhaust port to direct an accelerated flow of sweeping gas across selected portions of said gas delivery equipment prior to passing into said exhaust port.
Dependencies are inferred from the claim text.