空冷器管束在使用过程中因腐蚀和冲蚀造成管壁局部减薄, 最终发生爆管或开裂, 引起高压高温介质泄漏。为避免燃烧或爆炸事故发生, 需要定期对管束进行检测。远场涡流测厚技术在碳钢管束上的应用, 并在工程上对碳钢管束进行了现场涡流测厚及对比验证试验, 在此基础上提出远场涡流测厚技术是对带翅片碳钢管束的剩余壁厚测定的有效方法。

The tube bundle of Air Cooler may encounter thickness thinning due to corrosion or erosion causes in the service, ultimately the tube explode or craze, leading to leakage of high-pressure and high-temperature medium. In order to avoid occurrence of burning and explosion accident, regular inspection of the tube bundle is required. In this paper the application of the Remote Field Eddy Thickness-testing technology in carbon steel tube bundles was discussed, the carbon steel tubes were inspected by Remote field eddy current thickness-testing in actual engineering and comparison test, and based on this, it was proposed that the remote field eddy thickness-testing method for finned carbon steel tube bundle is availability.