Customized Diaphragm Shroud Steam Seal Ring with High-Low Tooth Configuration in Premium Alloy Steel

The diaphragm shroud steam seal ring is a critical flow-path steam seal component within steam turbine sealing systems. As an inter-stage steam seal, it functions to mitigate steam leakage in non-work-expansion sections, specifically serving as part of the blade tip-root sealing system alongside root steam seals.

• Reduces Inter-stage Leakage Loss: Minimizes short-circuit leakage through blade-tip gaps, improving stage efficiency and overall unit thermal economy
• Prevents Steam-flow Disturbance: Ensures steam expands following designed flow paths and stabilizes internal flow-field of each stage
• Accommodates Clearance Variation: Elastic retractable structure enables fine adjustment of seal segments to maintain optimal sealing clearance during operational changes

• High-precision spring strips provide stable centripetal force and sufficient retraction stroke
• Well-suited for frequent load fluctuations in peak-shaving units
• Rigorous quality inspection ensures compliance with industrial standards
• Direct replacement for OEM parts improves flow-path efficiency and reduces coal consumption