Eddy Current Testing for Condenser Tubes in Thermal Power Plants

Usage Process:

• Condenser tubes in thermal power plants are typically made of brass, cupronickel, titanium, or austenitic stainless steel.
• During operation, these tubes may develop various defects such as pitting corrosion from deposits, annular groove corrosion pits induced by ammonia corrosion on the steam side, and erosion from water flow impact.
• In-service eddy current testing uses an internal probe inserted manually or with a probe pusher for individual tube inspection.
• Technicians analyze, store, and report all signals.

Advantages:

• Supports both online and offline inspection of various metal bars, seamless pipes, welded pipes, and strips.
• External probes are used for continuous transmission and detection of surface, near-surface, and internal defects.
• Saddle-type saturators and probes are ideal for inspecting weld quality in larger diameter pipes, detecting defects such as incomplete fusion, inclusions, pinholes, pores, inner burrs, and weld beads.
• Point probes with manual or automatic scanning devices are used for spot-by-spot inspection of large or complex-shaped workpieces.
• Flexible auxiliary equipment options to suit different inspection methods and production environments.
• Can utilize existing on-site equipment or be customized for special applications.
• Lightweight and portable auxiliary devices are available for mobile inspections, with manual operation as an alternative.

On-site Eddy Current Flaw Detection Operation for 300MW Condenser Tubes in Service at Power Plant

On-site Eddy Current Flaw Detection Operation for 600MW Condenser Tubes in Service at Power Plant