回汽控制对舰用蒸汽动力系统的影响  

Influence of back-steam control technology on marine steam power system

作　　者：宋汉江 张国磊[2] 曾帅 SONG Hanjiang;ZHANG Guolei;ZENG Shuai(The 92942 Unit of PLA,Beijing 100161,China;College of Power and Energy Engineering,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]中国人民解放军92942部队,北京100161 [2]哈尔滨工程大学动力与能源工程学院,黑龙江哈尔滨150001

出　　处：《中国舰船研究》2022年第1期196-202,共7页Chinese Journal of Ship Research

摘　　要：[目的]船用蒸汽动力系统在紧急减速或换向操作过程中,回汽控制技术是缓解锅炉内锅筒超压问题的有效手段,需对其带来的影响进行研究。[方法]建立增压锅炉、主汽轮机和螺旋桨等设备的蒸汽动力系统仿真模型,针对大型舰船紧急减速过程和换向操作过程中快关阀无回汽、快关阀有回汽、慢关阀无回汽这3种工况,开展回汽控制特性的仿真对比分析。[结果]仿真结果表明:回汽控制可以有效避免紧急减速过程和换向过程中的锅筒超压问题,且系统稳定耗时分别缩短了3 min和1 min左右。[结论]研究成果可为舰船机动性设计和安全性设计提供参考。[Objectives]In the process of the emergency deceleration and reversing operations of marine steam power systems,back-steam control technology is an effective means of alleviating the problem of boiler drum overpressure,so it is necessary to study its influence on the system.[Methods]This paper establishes a steam power system simulation model of a supercharged boiler,main steam turbine and propeller,and carries out the simulation and comparative analysis of the characteristics of back-steam control in the process of the emergency deceleration and reversing of large ships under the three working conditions of quick closing valve with/without back-steam and slow closing valve without back-steam.[Results]The simulation results show that the steam return control technology can effectively prevent boiler drum overpressure in the process of emergency deceleration and reversing,and the system stability time is shortened by about 3 mins and 1 min respectively.[Conclusion]The results of this study can provide references for ship maneuverability and safety design.

关 键 词：蒸汽动力 动态仿真 回汽控制 响应特性 

分 类 号：U664.11[交通运输工程—船舶及航道工程]