李庆旺大学课题论文().docVIP

毕业专题论文 -- 船用增压器抖动及喘振故障处理 Marine turbocharger jitter surge and troubleshooting measures 学生姓名 李庆旺 所在专业 轮机工程 所在班级 轮机1071班 申请学位 工学学士 指导教师 余培文 职称 讲师 副指导教师 职称  目 录 摘 要 I abstract II 1 前言 1 1.1 增压器的概述 1 1.2涡轮增压器的分类 1 1.2.1机械增压 1 1.2.2废气涡轮增压 2 1.2.3复合增压 2 2 船舶增压装置的管理特点 3 2.1新安装涡轮增压器的原则。 4 2.2废气涡轮增压器使用注意事项及保养 4 3船舶增压装置的故障诊断及其对策 5 3.1运行中故障的现象及原因 5 3.1.1增压器的喘振 5 3.1.2 增压器和柴油机的运行失配 6 3.1.3 脉冲增压一缸熄火或各缸负荷严重不均 6 3.1.4 环境温度的变化 7 3.2增压器的强烈振动 7 3.2.1 叶片的断裂 7 3.2.2轴承烧损 7 3.2.3 转子失去动平衡 7 3.3 柴油机在一定转速和功率下增压压力的增高或降低 7 3.3.1 增压压力下降 7 3.3.2 增压压力升高 8 3.4 轴承相中滑油变黑和漏失 8 4 废气涡轮增压器常见问题及成因分析 8 4.1涡轮增压器漏油 8 4.2?浮动轴承损坏 9 4.3?涡轮增压器有异响 9 5 结论 10 鸣 谢 11 参考文献 12  摘 要 在当今船上，伴随着海运业迅速发展，现代工程机械用柴油机几乎都采用了废气涡轮增压技术在目前的技术条件下，涡轮增压器是唯一能使发动机在工作效率不变的情况下增加输出功率的机械装置abstract In todays board, along with the rapid development of the maritime industry, modern engineering machinery and diesel engine exhaust almost all of turbocharger technology with a turbocharger has been widely used in the current technical conditions, the turbocharger is the only one thatthe efficiency of the engine without changing the mechanical device to increase power output turbocharger, exhaust gas turbocharger turbine and compressor mainly of two parts, also has a cooling and lubrication systems.Marine turbocharger from the importance of talking about on the ship, described in detail the structural principle turbocharger, and then lists the management of marine turbocharger turbocharger points and ship common fault, and from the managementFaults point of view put forward solutions for various countermeasures.This article analyzes the ship common failure boosting device for turbocharger common faults and causes, and proposed the installation of the supercharger and maintenance, the operation of diesel engines and other measures to be taken to reduce the increasepressure device failure rate and prolong life, improve their economic efficiency. Keywords: The supercharger management failure analys