低参数大流量单级背压工业汽轮机优化设计  

Optimization of larger flow single stage and back pressure industrial steam turbine

作　　者：楼上游[1] 郭一朝 郑飞逸 

机构地区：[1]杭州汽轮机股份有限公司,浙江杭州310022

出　　处：《机电工程》2015年第4期501-505,共5页Journal of Mechanical & Electrical Engineering

摘　　要：针对大结构尺寸汽轮机与有限布置空间以及低能量值的余热蒸汽与给水泵的必要出力问题,基于经典的透平原理和工程经验,通过研究分析,提出了一种在经典单级背压工业小汽轮机基础上,采用了双分流结构形式的解决方案。采用新设计的工业汽轮机后,企业的工业余热蒸汽得到了充分利用,解决了给水泵的动力和系统的回热以及冬天的供水供热等问题。在双分流工业汽轮机新设计中,对其主要部件的制造工艺性、材料特性与强度、产品通用性等方面,均给出了合理的解决方案。相对传统经典单级背压工业小汽轮机而言,在制造成本,基建成本,布置空间方面,具有明显的优越性。研究结果表明,产品设计符合产业导向和节能环保理念,在低品位蒸汽的余热利用以及大流量、小机型工业汽轮机应用领域前景广泛。Aiming at the problems of the large dimensions of a turbine,the limited layout space arises and low heat value of steam,a reasonable scheme was proposed for utilization of waste heat for steel industries. The scheme is based on a structure of double bypass steam to backpressure industrial steam turbine. With the new steam turbine,the exhaust heat coule be sufficient exploited,enough power can supplied to the pump. Lower manufacturing cost,lower construction cost and compact space is needed,thermal water could be gained.Additional,the technique of manufacturing including material property and strength had been taken into consideration in this scheme. The results indicate that,this art of backpressure industrial steam turbine might be applied to territory of low grade steam at utilization of waster heat.

关 键 词：工业汽轮机 单级背压 大流量小机型 双分流 性能和结构 

分 类 号：TH122[机械工程—机械设计及理论] TK115[动力工程及工程热物理—热能工程]