化工学报2013，Vol.64Issue(8)：3023-3030,8.DOI:10.3969/j.issn.0438-1157.2013.08.046
30 t·d-1低温多效海水淡化装置中试试验
Pilot test of a 30 t · d-1 desalination device with multi-effect and operated at low temperature by evaporating seawater
摘要
Abstract
In this paper,pilot test was carried out on a 30 t · d-1 desalination device with multi-effect and operated at low temperature by evaporation of seawater,which was designed and constructed in the earlier phase of a project.Using the results obtained,the relationships between various key parameters,including motive steam,operating maximum temperature,temperature difference,spray density,extraction method of non-condensing gas,flow of steam ejector,gained output ratio,and product conductivity,were analyzed.Based on these test results,the conclusions drawn are as follows:(1)device stability,productivity of water and GOR are strongly affected by the fluctuation of motive steam pressure; (2) temperature difference by optimal design of heat transfer is about 3℃,and the spray density between 240 L · (m · h)-1 and 300 L · (m · h)-1 in desalination; (3) Water productivity increases by 3.64％ when vacuum pump is operated from parallel mode changing to series mode; (4)application of thermal vapor compressor (TVC) can increase water productivity and gained output ratio (GOR),at the same time can reduce system energy consumption.If the deviation between real running conditions and design value of the parameters was ≥20％,the injecting ratio will be reduced.The results obtained in this paper can be as a knowledge accumulation and design basis for design of large-scale,lowtemperature,multi-effect seawater desalination devices.关键词
海水淡化/低温多效蒸馏/中试试验Key words
seawater desalination/ low temperature multi-effect distillation/ pilot test分类
化学化工引用本文复制引用
齐春华,邢玉雷,康权,徐克,冯厚军..30 t·d-1低温多效海水淡化装置中试试验[J].化工学报,2013,64(8):3023-3030,8.基金项目
国家自然科学基金项目(51209044) （51209044）
国家海洋局海洋公益科研专项项目(201205030).supported by the National Natural Science Foundation of China (51209044). （201205030）
