Numerical simulation and application demonstration of bypass flue spray drying technology for desulfurization wastewater of a 330 MW unit

WANG Xiaobei; GENG Xuan; LUO Tianxiang; BAI Lu; CHEN Wu; YANG Linjun

doi:10.19666/j.rlfd.201901013

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Numerical simulation and application demonstration of bypass flue spray drying technology for desulfurization wastewater of a 330 MW unit

更新时间：2025-09-28

- Numerical simulation and application demonstration of bypass flue spray drying technology for desulfurization wastewater of a 330 MW unit
- Thermal Power Generation Vol. 48, Issue 6, Pages: 96-101(2019)
- 作者机构：
  
  1. 东南大学能源热转换及其过程测控教育部重点实验室
  2. 中国华电科工集团有限公司
  3. 江苏翔乐环境科技有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.201901013
  CLC： TK09;X703.1
- Published Online：10 June 2019，
  
  Published：2019
- 稿件说明：
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WANG Xiaobei, GENG Xuan, LUO Tianxiang, et al. Numerical simulation and application demonstration of bypass flue spray drying technology for desulfurization wastewater of a 330 MW unit[J]. Thermal power generation, 2019, 48(6): 96-101.
DOI：

WANG Xiaobei, GENG Xuan, LUO Tianxiang, et al. Numerical simulation and application demonstration of bypass flue spray drying technology for desulfurization wastewater of a 330 MW unit[J]. Thermal power generation, 2019, 48(6): 96-101. DOI： 10.19666/j.rlfd.201901013.

摘要

以某330MW燃煤机组旁路烟道安装的脱硫废水喷雾干燥塔为研究对象

使用ANSYS ICEM、Fluent软件对干燥塔内传热传质过程进行数值模拟

并对应用示范结果进行了分析。结果表明:不同工况下

喷雾干燥塔内温度场、流场分布良好

气、液传热传质主要集中在塔轴心;干燥后

脱硫废水中的Cl~–转移到固体产物中

处理难度降低;脱硫废水在高温烟气中蒸发

减弱了高比电阻粉尘反电晕

促进了颗粒物聚集长大并被静电除尘器捕集。采用旁路烟气干燥技术实现脱硫废水零排放

运行效果良好。

Abstract

Taking the desulphurization wastewater spray drying tower installed in bypass flue of a 330 MW coal-fired power plant as the research object

the ANSYS ICEM and Fluent software were used to simulate the heat and mass transfer process in the drying tower. Moreover

the application demonstration results were analyzed. The results show that

under different working conditions

the temperature field and flow field in the spray drying tower are well distributed. The gas-liquid heat and mass transfer mainly concentrates in the tower's axial direction. The Cl~– in the desulfurization wastewater migrated into the solid products

which decreased the treatment difficulty. The desulfurization wastewater evaporated in the high-temperature flue gas

which reduced the high specific resistance dust anti-corona and promoted the accumulation of particulate matters

thus the large size particles can be captured easily by the electrostatic precipitator. The bypass flue gas drying technology has good operation effect for realizing zero discharge of the desulfurization wastewater.

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