高品位热能利用汽轮机选型及节能效应  

High Quality Heat Energy Utilization Turbine Selection and Energy Saving Effcet

作　　者：张健[1] 赵翠莲[1] 张桂英[1] 李国堂[1] ZHANG Jian;ZHAO Cuilian;ZHANG Guiying;LI Guotang(State Nuclear Electric Power Planning Design & Research Institute, Beijing 100095, China)

机构地区：[1]国核电力规划设计研究院,北京100095

出　　处：《能源研究与管理》2016年第4期121-124,共4页Energy Research and Management

摘　　要：某热电厂将高品质蒸汽直接通过减温减压器,降低参数后用以提供低温低压工业用汽。对其进行改造,提出用背压式汽轮发电机来代替减温减压器的改造方案,可以有效利用高品位热能进行发电,然后用背压机排汽供工业用汽,达到节能降耗的目的,并据此详细阐述背压机的选型过程。A thermal power plant used a PRDH(pressure reducing desuperheater) to get low pressure low temperature steam from high quantity steam directly for industrial use . This method is a great waste of energy. An improvement is carried out to deal this situation. A backpressure turbine is suggested to substitute the PRDH, so that more power could be got from this steam conversion. This improvement could increase thermal efficiency and conserve energy. A detailed computation process is discussed.

关 键 词：余压发电 节能 选型 减温减压器 

分 类 号：TK018[动力工程及工程热物理]