The Function And Importance Of Steam Turbine Glands

The front and rear steam seals of a steam turbine are situated at opposite ends of the rotor; the front seal is located near the inlet of the high-pressure cylinder, while the rear seal is positioned near the outlet of the low-pressure cylinder. Their primary function is to prevent steam leakage and the ingress of external air, thereby ensuring the stability of the internal pressure within the turbine.

Preventing Steam Leakage: By creating a physical barrier, the steam seals minimize the leakage of steam from high-pressure zones to low-pressure zones, thereby enhancing the turbine's efficiency.

Isolating External Air: The rear steam seal effectively prevents air from entering the low-pressure cylinder, thereby averting a decline in the condenser's vacuum level.

Extending Equipment Lifespan: A well-designed steam seal system reduces friction between the rotor and stationary components, thereby lowering the frequency of maintenance requirements.