Manufacturer of Turbine Components
Manufactures various types of steam turbines ranging from 5MW - 50MW,including condensing, backpressure, and extraction-condensing designs
Steam Chamber Bolts
Turbine steam chamber bolts serve as critical high-temperature, high-pressure fasteners securing the steam chamber cylinder body to the cylinder head (or the steam chamber to the cylinder block).
Category:
Steam Turbine Bolts and Nuts
key word:
Product Introduction
Turbine steam chamber bolts serve as critical high-temperature, high-pressure fasteners securing the steam chamber cylinder body to the cylinder head (or the steam chamber to the cylinder block). Their primary function is to compress sealing surfaces and prevent high-temperature, high-pressure main steam leakage. Simultaneously, they endure severe thermal shocks during steam chamber startup/shutdown, sustained creep loads under elevated temperatures, and axial tensile forces generated by steam pressure. Their reliability directly determines steam chamber sealing safety, preventing catastrophic incidents such as equipment burns or unit trips caused by main steam leakage.
1. Primary Functions
1) Seal and prevent leakage.
2) Withstand alternating loads (high-temperature creep loads, axial steam tension, thermal shock stresses, etc.).
3) Maintain structural rigidity of the steam chamber.
4) Under prolonged high-temperature and frequent start-stop conditions, sustain stable preload to prevent decay caused by material creep or thermal fatigue, ensuring long-term sealing reliability.
2. Structural Types:
Primarily categorized as ultra-high-temperature bolts, high-temperature bolts, and medium-to-low-temperature bolts based on application scenarios.
3. Common Failures:
1) Bolt deformation due to high-temperature creep;
2) Seal leakage caused by bolt loosening;
3) Bolt fracture;
4) Bolt corrosion and high-temperature oxidation.
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A production-oriented enterprise specializing in the processing, production, and research and development of steam turbine components