Ultrasonic testing system for heat transfer pipe of steam generator

• Main Authors: LIN BAITAO, YANG CHONGAN, ZHOU LIANG, ZHU LIN, LIU YUN, YIN PENG
• Format: Patent
• Language: English
• Published: 29.04.2015
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The utility model relates to an ultrasonic testing system for a heat transfer pipe of a steam generator. The ultrasonic testing system comprises a probe assembly, a probe rotating device, a probe door device and a guide pipe; the probe assembly comprises a probe clamp, a plurality of probes and an ultrasonic cable, wherein the probes are arranged on the probe clamp, and the ultrasonic cable is connected with the probes; the probe rotating device comprises a sliding brush and a motor; the sliding brush comprises a movable part and a fixed part; the ultrasonic cable is connected with the movable part of the sliding brush; the output shaft of the motor is connected with the movable part of the sliding brush so as to drive the whole probe assembly to rotate; the probe door device is provided with a water supply pipe joint which is communicated with the interior of the probe door device; the guide pipe penetrates through the probe door device and is connected with the probe rotating device, the guide pipe is internally provided with a plurality of cables and water supply pipes; one end of each cable is connected with the fixed part of the sliding brush and the motor; and one end of each water supply pipe is connected with the water supply pipe joint. The ultrasonic testing system provided by the utility model can be used for testing the base metal material of the heat transfer pipe of the steam generator periodically, and the ultrasonic testing system is particularly a water immersion type ultrasonic testing system for testing the transitional area of the heat transfer pipe and the expansion pipe of a pipe plate.