基于多相流蒸发水电联产系统的经济性分析  

ECONOMIC ANALYSIS OF WATER AND POWER CO-GENERATION SYSTEM BASED ON MULTI-PHASE FLOW EVAPORATION

作　　者：王锋[1] 杜亚威[2] 刘燕[2] 张少峰[1,2] 

机构地区：[1]河北工业大学化工学院 [2]河北工业大学海洋科学与工程学院,海水资源高效利用化工技术教育部工程研究中心,天津300130

出　　处：《水处理技术》2015年第10期63-68,72,共7页Technology of Water Treatment

基　　金：河北省科学技术研究与发展计划项目(12276711D)

摘　　要：建立了等效焓降法抽汽效率矩阵模型和多相流蒸发器的数学模型,计算分析了相同淡水产量下固体颗粒体积分数、加热管进口处液体速度及浓缩比对系统的热力学性能的影响。结果表明,固体颗粒体积分数的增加,加热管进口处液体速度的增加,浓缩比的提高都能降低淡水成本;固体颗粒的加入能提高蒸发器的总传热系数,加热管进口处液体速度的增加对蒸发面积的影响较大,浓缩比对造水比和制水电耗量的影响较大。The matrix model of the equivalent enthalpy drop theory and the mathematical model of multiphase flow evaporator are established. The influence of the solid particle volume fraction, the liquid velocity at the inlet of heating pipe, and the concentration ratio on the thermodynamic performance are analyzed under the same situation in fresh water production. The results show that, the increase of the solid particle volume fraction, liquid velocity at the inlet of heating pipe and concentration ratio can reduce the unit product cost. The introduced of the solid particles could improve the total heat transfer coefficient of the evaporator. The liquid velocity at the inlet of heating pipe shows significantly influence on the heat transfer area. The concentration ratio could obviously influence the electricity loss for water production.

关 键 词：水电联产 等效焓降法 多相流 蒸发 经济性 

分 类 号：P747.7[天文地球—海洋科学]