探讨空冷器百叶窗管喷淋结构点.doc

探讨空冷器百叶窗管束喷淋结构点 夏季空冷器六台风机全数运转、百叶窗全开的状态下，依然满足不了生产要就。从而使丁烯循环量降到原来的三分之二。当丁烯循环量提高最高时，E-008冷后温度将超过工艺要求的64℃，达到70℃，继续提高丁烯循环量将严重引起丁烯回流罐V-102和脱丁烯塔C-101操作波动。而在冬季丁烯循环量能够维持在66t/h。针对夏季冷后温度高限制产量的情况，车间采取对E-008空冷器管束喷淋，但由于是鼓风式，强大的热空气流将大部分冷却水雾冲走，起不到明显降温效果，且一方面喷淋水加速了空冷器的钢结构和换热管外壁的翅片腐蚀和结垢，严重影响空冷器的长周期运行。 Summer air cooler six turbines for full operation, the blinds open, still cant satisfy the production to you. So that two-thirds of butene circulation to the original. When improve butene circulation highest, E - 008 after cold temperature will exceed the technical requirements of 64 ℃, 70 ℃, and will continue to improve butene circulation caused serious butene return tank C - 101 - V - 102 and to take off the butene tower operation. And in the winter can sustain butene circulation in 66 t/h. On summer cooling after high temperature limit of MEK production situation, the workshop to take for E - 008 air cooler tube bundle spray, but because is drum wind type, strong hot air stream to wash away most of the cooling water spray, no obvious cooling effect, and on the other hand spray water to accelerate the air cooler of steel structure and the outer wall of heat exchange tube, fin corrosion and fouling, the serious influence long period running of air cooler. 1.2存在腐蚀泄漏问题 1.2 corrosion leakage problems 由于水中夹带氯离子和硫酸根离子，在管壁的某点形成的强酸溶液对换热管易造成小孔腐蚀并泄漏。 Due to the water with chlorine ion and sulfate ion, formed in the acid solution at some point in the wall of exchange heat pipe is easy to cause hole corrosion and leakage. 1.3冬季易发生冻凝现象 1.3 winter freezing occur easily E-008共有6台单组空冷器组成，由于管束面积大，易发生偏流受环境温度影响大，且物料中含有水，在冬季如不能及时调整就很容易出现冻凝的安全隐患。 E - 008 - a total of 6 sets a single set of air cooler, because tube bundle area is big, prone to drift from the influence of ambient temperature, and water is contained in materials, in the winter, such as not timely adjust the safe hidden trouble that is prone to freezing. 1.4甲乙酮装置在用的空冷器E-008换热管外壁易结垢，降低管束的换热效果。影响空冷器的换热效果，同时清洗污垢增加了维护费用。 1.4 methyl e