SISTEMA DI DEPRESSURIZZAZIONE PER IMPIANTI OPERANTI CON VAPOER IN PRESSIONE.

摘要

PCT No. PCT/EP94/03162 Sec. 371 Date Jun. 9, 1996 Sec. 102(e) Date Jun. 9, 1996 PCT Filed Sep. 21, 1994 PCT Pub. No. WO95/09425 PCT Pub. Date Apr. 6, 1995A depressurizing system (1) for depressurizing plants, operating with pressurized steam and including a steam head (16), by injection of cold water under gravity from a reservoir (2) located at a higher level than the pressurized plant and connected thereto by a delivery duct (24) which forms a syphon (24a, 24b, 24c) and which is connected to the narrow section (10) of an ejector (6) into which steam flows in the event of an incident, the steam being drawn from a condenser (7) located downstream of the ejector (6), causing a drop in pressure which draws cold water from the tank (2) through the syphon which is thus overcome, enabling cold water to be injected into the pressurized plant.