[1]孟强,徐俊超,张军,等.利用冷却法构建湿气流过饱和场的实验研究[J].东南大学学报(自然科学版),2016,46(4):746-750.[doi:10.3969/j.issn.1001-0505.2016.04.012]
 Meng Qiang,Xu Junchao,Zhang Jun,et al.Experimental study on construction of wet flue gas supersaturated environment by cooling method[J].Journal of Southeast University (Natural Science Edition),2016,46(4):746-750.[doi:10.3969/j.issn.1001-0505.2016.04.012]
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利用冷却法构建湿气流过饱和场的实验研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
46
期数:
2016年第4期
页码:
746-750
栏目:
能源与动力工程
出版日期:
2016-07-20

文章信息/Info

Title:
Experimental study on construction of wet flue gas supersaturated environment by cooling method
作者:
孟强徐俊超张军于燕钟辉
东南大学能源热转换及其过程测控教育部重点实验室, 南京 210096
Author(s):
Meng Qiang Xu Junchao Zhang Jun Yu Yan Zhong Hui
Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing 210096, China
关键词:
湿法脱硫 冷却 水汽过饱和环境 过饱和度测量
Keywords:
wet flue gas desulfurization cooling supersaturated vapor environment supersaturation measurement
分类号:
TK16
DOI:
10.3969/j.issn.1001-0505.2016.04.012
摘要:
以模拟湿法脱硫后的高湿烟气为工质,采用冷却的方式在相变室内建立水汽过饱和环境.提出一种间接测量水汽过饱和度的方法来衡量水汽相变过饱和场构建效果.考察了不同气流温湿度、冷却水温度以及相变室壁面材料对水汽过饱和场的影响.结果表明,提高气流相对湿度以及适当提高气流温度都有助于提高水汽过饱和度;冷却水温度对过饱和场建立有非常明显的影响,冷却温度越低,得到的水汽过饱和场过饱和度越高;采用低表面能的聚四氟乙烯材料作为相变室内内壁可有效增强相变效果,获得较大过饱和度的水汽氛围;当相变室入口气流温、湿度分别为50 ℃,90%且冷却水温度为20 ℃时,采用有机玻璃材料的相变室内水汽过饱度可以达到1.5左右.
Abstract:
The high humidity gas of wet flue gas desulfurization system was simulated to build the supersaturated vapor environment by cooling method in condensation chamber. An indirect measurement method for the supersaturation was proposed to evaluate the construction effects on the supersaturated environment. The influences of different temperatures and humidities of flue gas, different temperatures of cooling water, and different surface materials of the chamber in the supersaturated environment were investigated. The results show that the increase of relative flue gas humidity and an appropriate increase of gas temperature will help to improve the vapor supersaturation; the temperature of cooling water has a very obvious impact on the construction of the supersaturated environment, the lower the cooling temperature is, the higher the supersaturation will be; taking the polytetrafluoroethylene material condenser with low surface energy as the inner wall of the chamber can effectively enhance the effect of phase transition and get a vapor environment with bigger supersaturation. When the gas temperature and the relative humidity at the inlet of the chamber are 50 ℃ and 90%, respectively, and the temperature of the cooling water is 20 ℃, the supersaturation in the condenser using organic glass material can reach about 1.5.

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备注/Memo

备注/Memo:
收稿日期: 2015-11-23.
作者简介: 孟强(1991—),男,硕士生;张军(联系人),男,博士,教授,博士生导师,junzhang@seu.edu.cn.
基金项目: 国家自然科学基金资助项目(51576043)、国家重点基础研究发展计划(973计划)资助项目(2013CB228504).
引用本文: 孟强,徐俊超,张军,等.利用冷却法构建湿气流过饱和场的实验研究[J].东南大学学报(自然科学版),2016,46(4):746-750. DOI:10.3969/j.issn.1001-0505.2016.04.012.
更新日期/Last Update: 2016-07-20