Droplet Evaporation Characteristics of Desulfurization Wastewater During Low-temperature Concentration

QI Jiangping; YANG Zhiguo; LI Dan; QU Xin; MEI Yongping; ZHOU Hao; ZHAN Lingxiao; YANG Linjun

doi:10.19805/j.cnki.jcspe.2025.240172

English Version Reader LoginJournal Login

您当前的位置：

首页 >

文章列表页 >

Droplet Evaporation Characteristics of Desulfurization Wastewater During Low-temperature Concentration

更新时间：2025-11-28

- Droplet Evaporation Characteristics of Desulfurization Wastewater During Low-temperature Concentration
- Chinese Journal of Power Engineering Vol. 45, Issue 6, Pages: 931-937(2025)
- 作者机构：
  
  1. 新疆天富环保科技有限公司,新疆,石河子,832000
  2. 新疆天富集团有限责任公司,新疆,石河子,832000
  3. 东南大学能源与环境学院, 能源热转换及其过程测控教育部重点实验室,江苏,南京,210096
- 作者简介：
- 基金信息：
- DOI：10.19805/j.cnki.jcspe.2025.240172
  CLC：
- Published Online：16 June 2025，
  
  Published：2025
- 稿件说明：
移动端阅览
戚江平,杨志国,李丹,曲欣,梅永平,周浩,詹凌霄,杨林军. 脱硫废水液滴低温浓缩蒸发特性动力工程学报, 2025, 45(6): 931-937 https://doi.

org/10.19805/j.cnki.jcspe.2025.240172
戚江平,杨志国,李丹,曲欣,梅永平,周浩,詹凌霄,杨林军. 脱硫废水液滴低温浓缩蒸发特性动力工程学报, 2025, 45(6): 931-937 https://doi. DOI： 10.19805/j.cnki.jcspe.2025.240172.

org/10.19805/j.cnki.jcspe.2025.240172 DOI：

摘要

基于单液滴蒸发实验平台和逆流喷淋低温烟气浓缩装置

对脱硫废水在高湿环境下的浓缩蒸发特性进行了实验研究

探究了烟气湿度、气体流速和水质对废水液滴蒸发特性的影响

研究了废水浓缩蒸发析出的晶体形貌及氯释放特性

以及影响低温烟气余热浓缩过程的关键工艺参数。结果表明:脱硫废水单个液滴低温浓缩蒸发过程可分为收缩、膨胀和结晶3个阶段;随着烟气湿度增加

液滴蒸发速率下降

湿球温度升高

最终结晶程度有所下降;气速增大缩短了液滴收缩段的时间

有利于加快蒸发速率

废水含固量提升将使液滴收缩至最小时的临界粒径增大

同时液滴整体温度上升;提高烟气温度、增大烟气流量和适当增加废水进液流量有利于提高浓缩效率。

Abstract

Experimental study was conducted on the concentration and evaporation characteristics of desulfurization wastewater in a high-humidity environment

based on a single droplet evaporation experimental platform and a counter-current spray low-temperature flue gas concentration device. The effect of gas humidity

gas velocity

and water quality on the evaporation characteristics of wastewater droplets were investigated. The morphology of the precipitated crystals and the characteristics of chlorine release

as well as the key process parameters affecting the low-temperature flue gas waste heat concentration process during wastewater concentration evaporation were studied. Results show that the low-temperature concentration and evaporation process of the single desulfurization wastewater droplet can be divided into three stages: contraction

expansion

and crystallization. As the humidity of the flue gas increases

the evaporation rate of droplets decreases

the wet-bulb temperature rises

and the final degree of crystallization decreases to some extent. The increase in gas velocity shortens the time of the droplet contraction phase

which is beneficial for accelerating the evaporation rate. The increase in solid content in the wastewater will increase the critical particle size when the droplet contracts to its smallest size

while the overall temperature of the droplet rises. Increasing the flue gas temperature

flow rate

and appropriately increasing the wastewater inlet flow rate are beneficial for improving concentration efficiency.

关键词

Keywords

references

SUN Zongkang, CHEN Haijie, ZHAO Ning, et al. Experimental research and engineering application on the treatment of desulfurization wastewater from coal-fired power plants by spray evaporation[J]. Journal of Water Process Engineering, 2021, 40: 101960.

赵宁, 冯永新, 林廷坤, 等. 热烟气环境下脱硫废水液滴蒸发特性研究进展[J]. 化工进展, 2021, 40(8): 4508-4514. ZHAO Ning, FENG Yongxin, LIN Tingkun, et al. Research progresses on evaporation characteristics of desulfurization wastewater droplets in high-temperature flue gas[J]. Chemical Industry and Engineering Progress, 2021, 40(8): 4508-4514.

刘迁伟, 吴火强, 王璟, 等. 脱硫废水膜浓缩-旁路烟气蒸发零排放处理系统设计及应用[J]. 热力发电, 2020, 49(11): 55-63. LIU Qianwei, WU Huoqiang, WANG Jing, et al. Desulfurization wastewater membrane conentration-bypass flue gas evaporation zero liquid discharge treatment system design and application[J]. Thermal Power Generation, 2020, 49(11): 55-63.

AN Wenhao, ZHAO Jun, LU Jiangang, et al. Zero-liquid discharge technologies for desulfurization wastewater: a review[J]. Journal of Environmental Management, 2022, 321: 115953.

廖述新, 朱文瑜, 唐复全, 等. 低温烟气余热蒸发脱硫废水工艺研究及工程应用[J]. 洁净煤技术, 2021, 27(6): 200-206. LIAO Shuxin, ZHU Wenyu, TANG Fuquan, et al. Research and engineering application on evaporation technology of FGD wastewater using low-temperature flue gas[J]. Clean Coal Technology, 2021, 27(6): 200-206.

ZHOU Hao, ZHAN Lingxiao, CHEN Heng, et al. Concentration of desulfurization wastewater using low-temperature flue gas and associated corrosion risk[J]. Environmental Science and Pollution Research, 2023, 30(7): 18395-18407.

王飞, 刘锋瑞, 杨凤玲, 等. 330 MW机组变负荷下低温余热闪蒸脱硫废水特性[J]. 洁净煤技术, 2023, 29(5): 105-112. WANG Fei, LIU Fengrui, YANG Fengling, et al. Characteristic of waste heat flash desulphurization wastewater of 330 MW unit under variable load[J]. Clean Coal Technology, 2023, 29(5): 105-112.

何晨, 毛霖, 杨仲卿, 等. 逆流喷淋浓缩塔中雾化参数对脱硫废水液滴群流动与蒸发特性的影响[J]. 中国电机工程学报, 2022, 42(7): 2588-2596. HE Chen, MAO Lin, YANG Zhongqing, et al. Influence of atomization parameters in countercurrent spray concentration tower on flow and evaporation characteristics of desulfurization wastewater droplets[J]. Proceedings of the CSEE, 2022, 42(7): 2588-2596.

马双忱, 陈嘉宁, 刘宁, 等. 低温烟气余热浓缩脱硫废水实验研究与探讨[J]. 动力工程学报, 2020, 40(1): 51-57, 64. MA Shuangchen, CHEN Jianing, LIU Ning, et al. Experimental study on the concentration of FGD wastewater using low-temperature flue gas[J]. Journal of Chinese Society of Power Engineering, 2020, 40(1): 51-57, 64.

马双忱, 刘道宽, 李洋, 等. 脱硫废水低温烟气浓缩过程中氯挥发研究[J]. 煤炭学报, 2022, 47(增刊1): 365-375. MA Shuangchen, LIU Daokuan, LI Yang, et al. Study on chlorine volatilization in low temperature flue gas concentration of desulphurization wastewater[J]. Journal of China Coal Society, 2022, 47(Sup1): 365-375.

WEI Yan, DENG Weiwei, CHEN R H. Effects of insoluble nano-particles on nanofluid droplet evaporation[J]. International Journal of Heat and Mass Transfer, 2016, 97: 725-734.

WEI Yan, DENG Weiwei, CHEN R H. Effects of internal circulation and particle mobility during nanofluid droplet evaporation[J]. International Journal of Heat and Mass Transfer, 2016, 103: 1335-1347.

詹凌霄, 陈恒, 周浩, 等. 预浓缩高盐脱硫废水蒸发特性实验研究[J]. 工程热物理学报, 2023, 44(8): 2294-2301. ZHAN Lingxiao, CHEN Heng, ZHOU Hao, et al. Experimental study of evaporation characteristics of pre-concentrated high-salinity desulfurization waste water[J]. Journal of Engineering Thermophysics, 2023, 44(8): 2294-2301.

CHEN Heng, ZHAN Lingxiao, GU Liyan, et al. Chloride release characteristics of desulfurization wastewater droplet during evaporation process using the single droplet drying method[J]. Fuel, 2021, 305: 121551.

GU Liyan, SHEN Tiejia, ZHAN Lingxiao, et al. Release characteristics of chloride during single droplet drying process of desulfurization wastewater[J]. Journal of Chemical Technology & Biotechnology, 2022, 97(1): 120-129.

白翔宇, 王建军, 杜明生, 等. 气液逆流接触过程及液滴夹带特性[J]. 高校化学工程学报, 2019, 33(6): 1344-1353. BAI Xiangyu, WANG Jianjun, DU Mingsheng, et al. Characteristics of gas-liquid countercurrent contact processes and droplet entrainment[J]. Journal of Chemical Engineering of Chinese Universities, 2019, 33(6): 1344-1353.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Review on Study for Spray Evaporation Characteristics of Desulfurization Wastewater

Chloride Migration, Transformation Behavior and Risk Assessment During Evaporation of Desulfurization Wastewater

Related Author

YANG Linjun

ZHAN Lingxiao

LI Zeqing

ZHANG Zengli

YANG Linjun

CHEN Heng

ZHAO Ning

QI Hongfeng

Related Institution

School of Energy and Environment, Southeast University

Hangzhou Yunze Environmental Technology Co., Ltd.

Xinjiang Tianye Group Co., Ltd., Shihezi 832000, Xinjiang Uygur Autonomous Region

Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University

School of Mechatronics and Energy Engineering, NingboTech University

AI问答

⁰