When a high pressure turbine is operating at sea speed, the pressure of the steam leaking through the shaft gland packing may be slightly higher than the pressure setting of the gland seal regulator. In this situation, the excess steam at the regulator is directed to the __________.
• Function of a gland seal regulator in a marine steam turbine system • Normal flow path of gland steam and where excess/relief steam is sent • Difference between a gland exhaust condenser and the main condenser
• Think about what the gland seal regulator is protecting and what happens when the gland leak-off steam pressure is slightly too high. • Consider where low‑pressure, relatively low‑quality steam from shaft glands is usually handled and why it might not be ideal to route it to high‑vacuum equipment. • Ask yourself which piece of equipment is specifically designed to deal with steam coming off gland packings and maintain vacuum around the turbine shaft.
• Verify which component is specifically associated with turbine gland leakage in standard steam plant diagrams. • Check which condenser or system normally handles low-pressure, contaminated, or air-laden steam from glands rather than main steam flow. • Confirm which choice is typically connected directly to the gland seal regulator outlet on training schematics or manufacturer’s drawings.
No comments yet
Be the first to share your thoughts!