The connection of stripping tube and the distributing tube in the ammonia stripper in urea plant didn't seal well, leading to the erosion corrosion on stripping tube end and side. The urea solution entered into the stripping tube directly from the corrosion clearance without formation of uniform liquid membrane, causing the stripping efficiency decreased. By increasing the pretightening force and the mode of the sealing gasket, the tripping efficiency was enhanced, therefore prolonging the life of the equipment, ensuring the safety and long term operation of the plant.
关键词
氨汽提塔/汽提管与分布管/预紧力/密封形式/汽提效率
Key words
ammonia stripper/stripping tube and distributing tube/pretightening force/sealing mode/stripping efficiency
维普
万方数据