FIRE HAZARD SUPPRESSION SYSTEM WITH SEQUENTIAL DISCHARGING OF INERT GAS BY RUPTURABLE DISC AND DECAYING PRESSURE

摘要

A controlled pressure release system (10) prevents overpressure in a protected area (14) upon delivery of gas. The system (10) includes a first and a second gas container (12a and 12b), piping (40), a first and second gas outlet 28 and 30), a first differential pressure responsive valve (16a), and a valve (22, 30). The piping (40) has a discharge outlet (24) and connects the first and the second gas containers (12a and 12b) to each other at the first gas outlet (28) and the second gas outlet (32), respectively. The first differential pressure responsive valve (16a) is positioned between the first and second gas outlets (28 and 32). The valve (22, 30) actuates the system (10) and is switchable between a closed position and an open position. When the valve (22, 30) switches to the open position, the first gas container (12a) is in communication with the discharge outlet (24). The first differential pressure responsive valve (16a) opens as a function of a gas pressure differential caused by decreasing gas pressure in the first gas container (12a).