Manufacturer of Turbine Components
Manufactures various types of steam turbines ranging from 5MW - 50MW,including condensing, backpressure, and extraction-condensing designs
Emergency Shutdown Switch
The Steam Turbine Emergency Shutdown Device (also known as the Emergency Safety Device) serves as the core execution component for overspeed protection in power generation units.
Category:
Turbine Miscellaneous Parts
key word:
Product Introduction
The Steam Turbine Emergency Shutdown Device (also known as the Emergency Safety Device) serves as the core execution component for overspeed protection in power generation units. Installed at the main shaft end of the steam turbine rotor (or at the coupling), Its primary function is to rapidly shut off the steam inlet channel via centrifugal force activation when unit speed exceeds safe thresholds, forcing unit shutdown to prevent catastrophic failures like rotor fracture or blade ejection caused by overspeed. It serves as the “last line of defense” for turbine operational safety.
1. Primary Functions:
1) Overspeed protection.
2) Reset capability.
3) Independent backup.
2. Structural Types:
Primarily categorized by design into flyweight type (suitable for small-to-medium units, simple structure) and flyring type (suitable for large units, uniform force distribution).
3. Common Failures:
1) Failure to activate during overspeed (most critical failure);
2) False tripping during normal operation;
3) Inability to reset after tripping;
4) Significant deviation in tripping speed, resulting in insufficient protection accuracy.
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A production-oriented enterprise specializing in the processing, production, and research and development of steam turbine components