Heat exchanger tube bundle wall corrosion condition ultrasonic detection bracket and using method

Abstract

The invention discloses a heat exchanger tube bundle wall corrosion condition ultrasonic detection bracket and a using method. The bracket comprises a conduit, a clamping frame and a fixing base, wherein the clamping frame clamps and fixes the conduit through a clamping block, a clamping angle steel and a fastening screw; the fixing base is connected with the clamping frame through a limiting screw; gaps between three sliders are adjusted through a long bolt and two positioning screws respectively; and three positioning claws are arranged on the bottom surfaces of the three sliders. The gaps between the three sliders are adjusted to enable the three positioning claws to be inserted in three adjacent heat exchanger tubes of a detected heat exchanger and to be fixed, the conduit is adjustedto the mouth of the detected heat exchanger and centering is carried out, a centering frame mounted with an ultrasonic sensor is inserted from the upper part of the conduit and extends to the far endof the detected heat exchanger for detection, the centering frame is pulled slowly out of the conduit until the centering frame is removed out of the conduit, and ultrasonic detection is completed. The bracket and the using method heat exchanger tube bundle wall corrosion condition, and the potential safety hazards in use are eliminated.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to an ultrasonic detection bracket for the corrosion condition of the tube wall of a heat exchanger tube bundle and a use method thereof. Background technique [0002] Usually, the corrosion status of the tube wall of the ferromagnetic heat exchanger is detected and evaluated by rotating ultrasonic technology. During on-site inspection, the ultrasonic sensor is installed on the top of the centering frame, and the ultrasonic sensor and the centering frame are extended into the far end of the heat exchange tube. Then start to detect the corrosion condition from the far end of the heat exchange tube to the wall of the inlet end. During this period, the two sets of support arms of the middle frame support the ultrasonic sensor well in each heat exchange tube to be tested and move at a constant speed. The ultrasonic sensor at its top rotating at high speed can receive reliable echo sig...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a bracket for ultrasonic detection of tube wall corrosion of heat exchanger tubes and a method of use thereof. The bracket and method of use overcome the defects of ultrasonic testing of tube wall corrosion of heat exchanger tube bundles and effectively solve the problem of detection blind spots , make a complete diagnosis of the corrosion of the tube wall of the heat exchanger tube bundle, and eliminate potential safety hazards in use

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