气体再压缩式增湿去湿高盐废水淡化装置的建立与模拟  

Establishment and simulation of gas recompression humidification and dehumidification high salinity wastewater desalination unit

作　　者：邵婷 陈文佳 林春绵 SHAO Ting;CHEN Wen-jia;LIN Chun-mian(School of Environment,Zhejiang University of Technology,Hangzhou 310014,China)

机构地区：[1]浙江工业大学环境学院,浙江杭州310014

出　　处：《现代化工》2020年第10期212-215,共4页Modern Chemical Industry

基　　金：浙江省重点研发计划项目(2015C02058)。

摘　　要：在增湿去湿法(HDH)高盐废水淡化的基础上耦合了MVR法,建立了一种新型的气体再压缩式增湿去湿高盐废水淡化装置。该系统是兼具气体循环和高盐废水循环的双循环系统,整个系统为零排放。通过Aspen Plus软件搭建该装置相关模型,分别模拟不同工艺操作参数对系统能效比和浓缩比的影响。当控制增湿塔进口空气温度为30℃、质量流量为1900 kg/h、增湿塔进口水温度为90℃、进口水质量流量为15 t/h(水气比为7.9)、循环水箱补充水质量流量为1500 kg/h(25℃)、气体压缩比为1.2时,系统效能比达到16.3,浓缩比达到1.64。Based on the desalination of high salinity wastewater with humidification and dehumidification method(HDH),MVR method is coupled,and a new type of gas recompression HDH high salinity wastewater desalination facility is established.This facility is a dual-cycle system involving in both gas circulation and high salinity wastewater recycling,with zero emission.Related models for this facility are built by means of Aspen Plus software,and the effects of different process parameters on the energy efficiency ratio and concentration ratio of the system are simulated respectively.The energy efficiency ratio and concentration ratio can reach 16.3 and 1.64,respectively when air temperature at the inlet of the humidification tower is at 30℃,the mass flow is 1,900 kg·h-1,water temperature at the inlet of the humidification tower is at 90℃,the mass flow of the inlet water is 15 t·h^-1(water/air ratio is 7.9),the mass flow of the make-up water of the circulating water tank is 1500 kg·h-1(25℃),and the gas compression ratio is 1.2.

关 键 词：高盐废水 增湿去湿 MVR ASPEN软件 节能 

分 类 号：X701.1[环境科学与工程—环境工程]