全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
化工学报  2012 

固体颗粒对流化床多相蒸发海水淡化操作浓缩比及膜传热系数的影响

DOI: 10.3969/j.issn.0438-1157.2012.08.008, PP. 2392-2397

Keywords: 海水淡化,循环流化床,蒸发,浓缩比,防除垢

Full-Text   Cite this paper   Add to My Lib

Abstract:

提高海水淡化操作浓缩比,不仅可以提高造水比,还可以有效降低淡化后浓海水再利用的后处理成本,故其是实现低成本零排放的关键之一。在一套循环流化床多相蒸发海水淡化实验装置上,分别采用汽-液两相及汽-液-固三相操作,考察固体颗粒对海水淡化操作浓缩比及膜传热系数的影响,并分析垢层的主要成分。实验表明:高温下CaSO4首先析出,是形成垢层的主要成分;采取汽-液两相操作,膜传热系数保持在1.75kW·m-2·K-1左右,操作浓缩比可达到3.8左右;采取汽-液-固三相操作,固体颗粒强化传热和防除垢的作用显著,加入颗粒体积分数为4%时,在膜传热系数保持在2.3kW·m-2·K-1左右不降低的情况下,海水淡化操作浓缩比达到5.8以上。

References

[1]  Gao Congkai(高从堦), Chen Guohua(陈国华). Desalination Technology and Engineering Manual(海水淡化技术与工程手册)[M]. Beijing: Chemical Industry Press, 2004.
[2]  Wang Shichang(王世昌). Desalination Project(海水淡化工程)[M]. Beijing: Chemical Industry Press, 2003.
[3]  Akili D. Khawaji, Ibrahim K. Kutubkhanah, Jong-Mihn Wie. Advances in seawater desalination technologies[J]. Desalination, 2008, 221(1-3): 47-69.
[4]  Mark Wilf, Kenneth Klinko. Improved performance and cost reduction of RO seawater systems using pretreatment[J]. Membrane Technology, 1999, 1999(113): 5~8.
[5]  Chen Yitang(陈益棠), Zhang Hongzi(章宏梓), Zhou Nimin(周倪民). Seawater Desalination with High Recovery Rate by Integrated Membrane Desalination Process[J]. Technology of Water Treatment(水处理技术), 2005, 31(06): 38-42.
[6]  Li Qingfang(李清方), Liu Zhongliang(刘中良), Pang Huizhong(庞会中), Zhang Jian(张建), Zhu Wei(祝威). Process simulation and analysis of mechanical vapor compression based oilfield waste water desalination systems[J]. CIESC Journal(化工学报),2011, 62(7):1963-1969.
[7]  Hong Yijun(黄逸君), Chen Qunzhen(陈全震), Zeng Jiangning(曾江宁), Jiang Zhibing(江志兵). Influences of the high salinity wastewater from desalination plants on the marine ecological environment[J]. Journal of Marine Sciences(海洋学研究), 2009, 27(3): 103-110.
[8]  Ahmed Hashim, Muneer Hajjaj. Impact of desalination plants fluid effluents on the integrity of seawater, with the Arabian Gulf in perspective[J]. Desalination, 2005, 182(1-3): 373-393
[9]  Young M. Kim, Seung J.Kim,Yong S.Kim, Sangho Lee, In S.Kim and Joon Ha Kim. Overvew of systems engineering approaches for a large-scale seawater desalination plant with a reverse osmosis network[J]. Desalination 2008, 238(1-3): 312-332
[10]  Rachel Einav, Kobi Harussi, Dan Perry. The footprint of the desalination processes on the environment[J]. Desalination, 2003, 152(1-3): 141-154.
[11]  Ma Xuehu(马学虎), Lan Zhong(兰忠), Wang Sifang(王四芳), Li Lu(李璐). Impact of discharges in seawater desalination on marine environment and progress of zero liquid descharge[J]. Industry and Engineering Progress(化工进展), 2011, 30(01):233-242.
[12]  Zhong Hongwei(钟宏伟), Zhang Shaofeng(张少峰). The Study of Fouling Induction Period of CaSO4 in Vaper-Liquid-Solid Three-Phase Flow[J]. Journal of Hebei University of Technology(河北工业大学学报), 2003, 23(6): 26-30.
[13]  Xu Hai(徐海), Li Hesheng(郦和生), Wang Dong(王岽). Study on CaSO4 crystallization process and its influential factors[J]. Industrial Water Treatment(工业水处理), 2011, 31(5): 2011, 67-69.
[14]  M.E. EI-Dahshan. Corrosion and scaling problems present in some desalination plants in Abu Dhabi[J]. Desalination, 2001, 138(1-3): 371-377.
[15]  Liu Jie(刘洁), Yuan Jianjun(袁建军). The research of calcium sulfate scaling phnomenon on defferent material surfaces during seawater caoncentration process. Journal of Salt and Chemical Industry(盐业与化工), 2010, 39(4):7-10.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133