船舶汽轮机抽气器参与凝汽器背压调节的可行性研究  

Study on the Feasibility of Back Pressure Regulation Using Air Ejector in Marine Steam Turbine

作　　者：孔祥纯 苏鹏宇[2] 李照忠[2] 邢媛[2] 朱东保[3] 

机构地区：[1]海军驻武汉七一九所军事代表室,湖北武汉430064 [2]哈尔滨工业大学能源科学与工程学院,黑龙江哈尔滨150001 [3]武汉第二船舶设计研究所,湖北武汉430000

出　　处：《节能技术》2012年第3期220-223,共4页Energy Conservation Technology

摘　　要：汽轮机凝汽设备及系统是重要的辅机设备及系统,而凝汽器背压对汽轮机的运行安全经济性及调节性能都有很大的影响。对于带自流装置的船舶汽轮机,在某些自流工况,循环水过量,采用循环水无法对凝汽器的背压进行调节,调节系统的功能存在一定的局限性。对此,本文对抽气器参与凝汽器背压调节的可行性进行研究,并建立了相应的控制模型进行仿真,验证了抽气器参与凝汽器背压调节的可行性,对凝汽器背压调节具有参考价值。The turbine condensation-steam equipment and system are very important.The back pressure of the condensation-steam equipment has a great impact on the operatingsafety,economy and regulation.The regulation of the back pressure of the marine steam turbine is done by artesian water and circulation water in two conditions.When the back pressure is too low in artesian condition,both of the two regulation modes are ineffective.Therefore,this paper makes a theoretical analysis on the feasibility of using air ejector to regulate the back pressure and set up a mathematical model to do the simulation verification.It is hoped that this method of condensation-steam equipment back pressure regulation can be useful to the operating safety and economy of the marine steam turbine.

关 键 词：船舶汽轮机 抽气器 凝汽器 背压调节 可行性 

分 类 号：TK264.11[动力工程及工程热物理—动力机械及工程]