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河南省压力容器检测研究院在对液化气脱硫醇抽提塔检验中,磁粉探伤发现塔体底部筒节纵焊缝、环焊缝(筒节与封头连接)热影响区及底部筒节接管焊缝存在大量表面裂纹。该设备设计压力1.8MPa,设计温度60℃,塔体规格φ2800/2400mm×28280,主体材质16MnR,内部介质为液化气和碱液,塔体壁厚情况:简体22/24/32mm,封头22/24,腐蚀余
Pressure Vessel Research Institute of Henan Province in liquefied gas desulfurization extraction tower test, the magnetic particle inspection found that the bottom of the cylinder tube longitudinal weld seam, girth weld (tube and head connection) heat-affected zone and the bottom of the tube take over Weld there are a lot of surface cracks. The design pressure of the device is 1.8MPa, design temperature is 60 ℃, the tower body size is φ2800 / 2400mm × 28280, the main body material is 16MnR, the internal medium is liquefied gas and lye. The wall thickness of the tower body is simplified as follows: 22/24 / 32mm / 24, more than corrosion