Apparatus and system for the storage and supply of liquid CO.sub

Details Apparatus and system for the storage and supply of liquid CO.sub Apparatus and system for the storage and supply of liquid CO.sub

1996-10-07

1998-12-22

Pike, Andrew C.

Fire extinguishers

Special applications

Condition responsive control

169 11, A62C 3744

Patent

active

058508767

ABSTRACT:
An apparatus and system stores and supplies liquid CO.sub.2 at low pressure for extinguishing fires. The apparatus comprises a pressure vessel (13) for storing liquid CO.sub.2 at low pressure, a cooling device (29) in contact with gaseous CO.sub.2 in the vessel to maintain the low pressure, an inlet (24) and outlet (32) to fill the vessel and a supply conduit (17) communicating with a lower portion of the interior of the vessel to allow liquid CO.sub.2 to pass from the vessel and into a reticulation system. A number of pressure vessels can be coupled together through a manifold (165) to provide the required amount of liquid CO.sub.2 to a risk site. Supply valves (18) or manifold valves (173, 174) can be operated by a sensor (175, 176) in a risk site and a logic processor (177) can be used to regulate the valves and thereby the liquid CO.sub.2. The apparatus and system is particularly designed as a replacement for current halon systems which cause damage to the ozone layer.

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