MAN B&W 6S50MC-C MK型主机排气系统背压超标现象分析
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摘要
MAN B&W 6S50MC-C MK7型主机在试航中耐久试验时发现主机排气系统背压有超标现象,通过对排气系统组成分析及有关废气参数和排气系统中的各管段的摩擦系数等计算,进一步分析了工况调整不理想状态下背压超标的原因,提出了改进废气流通的方案.
The MAN B&W 6 S50 MC-C MK host found that the back pressure of the exhaust system of the host was exceeded during the endurance test during the trial. Through the analysis of the exhaust system composition and the calculation of the exhaust gas parameters and the friction coefficient of each pipe in the exhaust system. This paper further analyzes the causes of overpressure under unsatisfactory condition adjustment,and puts forward a scheme to improve the muffler to increase the exhaust gas flow.
The MAN B&W 6 S50 MC-C MK host found that the back pressure of the exhaust system of the host was exceeded during the endurance test during the trial. Through the analysis of the exhaust system composition and the calculation of the exhaust gas parameters and the friction coefficient of each pipe in the exhaust system. This paper further analyzes the causes of overpressure under unsatisfactory condition adjustment,and puts forward a scheme to improve the muffler to increase the exhaust gas flow.
引文
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[2]朱继军.冲击响应信号反演柴油机气缸压力的研究[J].武汉理工大学学报,2007,29(1):5-8.
[3]彭陈,胡理琳.船舶主机缸套裂纹分析[J].广东交通职业技术学院学报,2016,15(4):41-43.
[4]龙红刚,陈伟.主机在线式汽缸压力分析系统探讨[J].广东造船,2017,36(1).
[5]张哲.相继涡轮增压柴油机推进特性的稳态及瞬态试验研究[J].内燃机工程,2011,32(6):68-73.
[6]娄宇.关于船舶主机增压器喘振的探讨[J].工程技术:全文版,2016(9):00310-00310.
[7]顾宏中.柴油机增压及其性能优化[M].上海:上海交通大学出版社,1989.