STUDY ON SIZE-ENLARGING TECHNOLOGY OF SEA-WATER DESALINATION EQUIPMENT BY USING LOW-TEMPERATURE MULTI-EFFECT DISTILLATION

ZHANG Jianli; DING Tao; ZHOU Hongguang; LI Yanbing; ZHANG Zhongmei; YANG Qingwei Shenhua Guohua(Beijing) Electric Power Research Institute Co Ltd

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STUDY ON SIZE-ENLARGING TECHNOLOGY OF SEA-WATER DESALINATION EQUIPMENT BY USING LOW-TEMPERATURE MULTI-EFFECT DISTILLATION

更新时间：2025-09-28

- STUDY ON SIZE-ENLARGING TECHNOLOGY OF SEA-WATER DESALINATION EQUIPMENT BY USING LOW-TEMPERATURE MULTI-EFFECT DISTILLATION
- Thermal Power Generation Vol. 41, Issue 6, Pages: 85-88(2012)
- 作者机构：
  
  神华国华(北京)电力研究院有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： P747.1
- Published：2012
- 稿件说明：
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ZHANG Jianli, DING Tao, ZHOU Hongguang, et al. STUDY ON SIZE-ENLARGING TECHNOLOGY OF SEA-WATER DESALINATION EQUIPMENT BY USING LOW-TEMPERATURE MULTI-EFFECT DISTILLATION[J]. Thermal power generation, 2012, 41(6): 85-88.
DOI：

ZHANG Jianli, DING Tao, ZHOU Hongguang, et al. STUDY ON SIZE-ENLARGING TECHNOLOGY OF SEA-WATER DESALINATION EQUIPMENT BY USING LOW-TEMPERATURE MULTI-EFFECT DISTILLATION[J]. Thermal power generation, 2012, 41(6): 85-88. DOI：

摘要

在2.5万t/d低温多效蒸馏(LT-MED)海水淡化试验装置上通过改变工艺参数

考察装置操作温度、工艺流程、蒸发器换热管布置、物料海水流量及其过冷度对淡水产量的影响。结果表明

在工作蒸汽量相同的条件下

低温2效产水量只有高温2效产水量的50%～70%;适当预热物料海水

有利于提高蒸发器的工作效率;换热管倾斜布置

对提高蒸发器换热效果作用不显著;加大物料海水喷淋量将减小淡水产量和造水比

喷淋密度宜保持在0.04～0.06kg/ms范围内。

Abstract

On interim-test equipment of sea-water desalination using low-temperature and multi-effect distillation(LT-MED) with output capacity of 25-thousand t/d

through changing the technological parameters

the influence of working temperature in operation of equipment

technological process

arrangement of heat-exchaning pipes in the evaporater

flow rate of material and sea-water

and degree of over cooling upon the output of fresh water has been investigated.Results show that the water yield under condition of low temperature and two-effect mode is only 50%~70% of that in high-temperature and two-effect mode;suitably preheating material and sea-water is advantageous to enhance the work efficiency of the evaporator;the declination arrangement of heat-exchanging pipes hasn't substantial effectiveness for enhancing the heat-exchanging in evaporator;increasing the spray amount of material and sea-water will decrease the output of fresh water and the water-making ratio;and the spraying density is adequate to maintain in a range of 0.04~0.06 kg/ms.

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