Swiss Aluminium Ltd.

Alusuisse-lonza Services Ltd.

Israel Reznik

The protective device prevents overheating, in particular by fire, of individual or batteries of pressure vessels of length equal to at least 1,5 m, employed for storage and/or transportation of gases under high pressure. The essentially cylindrical pressure vessels have at least one closure cap with a valve or a closure plug. Mounted on one closure cap is a pressure pipe which communicates with the interior of the pressure vessel, and is fitted with a controllable venting valve that under normal conditions closes off the pressure pipe or a common pressure pipe and has a venting pipe which terminates outwith the region of the pressrue vessel/vessels. Temperature sensitive actuating means are provdied in the axial direciton of the pressure vessel/vessels a spacing apart and connected to the venting valve. These means can individually actuate the venting valve should overheating occur.

Protective device for gas pressure vessels

The protective device against an overheating, in particular by fire, of individual or batteries of pressure vessels (10) of a length (1) of at least 1.5 m serves for the storage and/or transportation of high- pressure gases. The pressure vessels (10) have at least one end cap (14) with a valve (18) or an end plug (20) with a melting plug (22) of an alloy melting at a low temperature. On at least one end cap (14) a pressure pipe (24), communicating constantly with the interior of a pressure vessel (10) branches off, which pressure pipe is led in axial direction (A) along at least a part of the pressure vessel (10). At intervals (a), essentially T-shaped fittings (26) are installed in the pressure pipe (24), which fittings have in their branching-off leg a melting plug (22) of an alloy melting at a low temperature. A blindly ending pressure pipe (24) is closed off by such a melting plug (22). The protective device is primarily used on pressure vessels of aluminium, in particular with a fibre-reinforced jacketing (12).

Growing community of inventors

Zollikon, Switzerland

Israel Reznik