低温多效海水淡化装置背压机及TVC方案能耗比较分析  

Energy Consumption Analysis of Low Temperature Multi-effect Seawater Desalination with Back Press Turbine and TVC Scheme

作　　者：温新宇 WEN Xin-yu(CHN Energy New Energy Technology Research Institute Co.,Ltd.,Beijing 102209,China;International College,Krirk University,Thailand)

机构地区：[1]国家能源集团新能源技术研究院有限公司,北京102209 [2]泰国格乐大学国际学院

出　　处：《汽轮机技术》2022年第5期334-336,384,共4页Turbine Technology

摘　　要：配置蒸汽喷射器(TVC)的低温多效海水淡化装置(MED)是目前热法海水淡化装置中常用的一种技术,该技术具有蒸汽利用率高、造水比高的优点,但同时也存在宽负荷运行能力弱,部分负荷运行经济性差的问题,为了实现海水淡化装置宽负荷、高效运行,本文利用热力系统仿真分析软件对包括背压机+MED和TVC+MED的3种方案进行了比较分析,结果表明背压机方案可以提高机组高负荷下海水淡化装置的经济性,但其低负荷下运行积极性较差,采用双TVC方式的海水淡化装置在提高海淡宽负荷运行能力的同时,可提高海淡设备的运行经济性。Low temperature multiple effect desalination with steam ejector(TVC+MED)is a technology of the thermal desalination,which has the advantages of high utilization rate of steam and water making ratio,but at the same time its wide load operation ability is weak,and partial load operation economical efficiency is low.In order to realize wide load and efficient operation of seawater desalination plant,In this paper,the thermal system simulation software is used to compare and analyze various projects,include back-pressure turbine+MED and TVC+MED.The results show that back-pressure turbine project can improve the economy of seawater desalination plant under high load,but its operating enthusiasm under low load is poor.However,The double TVC desalination project can not only improve the operating capacity of the sea water desalination plant,but also improve the operating economy of the sea water desalination plant.

关 键 词：低温多效海水淡化 背压机 蒸汽喷射器 节能降耗 

分 类 号：U664.591[交通运输工程—船舶及航道工程]