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Wasserstand

From Derail Valley
Revision as of 14:02, 12 March 2025 by FuzzyBot (talk | contribs) (Updating to match new version of source page)

When running steam engines , the most critical responsibility is to maintain a nominal level of water in the boiler . This is done by observing a water gauge and adjusting the water level accordingly. The water level should always be visible within the water gauge, typically ranging between 75% and 85% of the boiler height.

If water rises above the limit, there are two potential dangers - there is less room for steam to be generated in, and water can overflow into the cylinders , potentially causing them to break .

If water falls under the limit, the boiler can explode and cause catastrophic damage . If the firebox is sufficiently hot and its top surface, known as “crown sheet”, protrudes above the water level, it can soften from high temperatures and pressure, and lead to the boiler explosion.

In an emergency attempt to save the engine from explosion, immediately feed water and dump coal from the firebox.

Water is fed to the boiler from storage using an injector . It is dumped from the boiler using a blowdown valve, usually found in a vehicle's cab .

Der Wasserstand wird außerdem beeinflusst von der Wärmeausdehnung des Wassers. Wenn die Wassertemperatur steigt, steigt auch der Wasserstand, ohne dass zusätzliches Wasser in den Kessel gelangt.

Der Wasserstand ist zudem abhängig von der Gleisneigung und Schwappen des Wassers. Wenn eine Lokomotive bergab fährt, erscheint der Wasserpegel niedriger als auf einer ebenen Fläche und umgekehrt.