| 摘要 |
<p>A depressurising system (1) for depressurising plants, operating with pressurised 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 pressurised 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 pressurised plant.</p> |
