Deposition behavior of sulfuric acid vapor on heat exchanger surfaces

ZHAO Hanchen; YAO Mingyu; LI Ji; WU Shuaishuai; ZHANG Lixin

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Deposition behavior of sulfuric acid vapor on heat exchanger surfaces

Thermal Power Generation Issue 8, (2016)

更新时间：2025-09-28

- Deposition behavior of sulfuric acid vapor on heat exchanger surfaces
- 作者机构：
  
  1. 西安热工研究院有限公司,陕西,西安,710054
  2. 中国石油天然气股份有限公司大庆石化分公司热电厂,黑龙江,大庆,163714
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK172
- Published Online：15 September 2016，
  
  Published：2016
- 稿件说明：
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ZHAO Hanchen, YAO Mingyu, LI Ji, et al. Deposition behavior of sulfuric acid vapor on heat exchanger surfaces[J]. Thermal Power Generation, 2016, (8).
DOI：

ZHAO Hanchen, YAO Mingyu, LI Ji, et al. Deposition behavior of sulfuric acid vapor on heat exchanger surfaces[J]. Thermal Power Generation, 2016, (8). DOI：

摘要

结合酸露点公式与计算流体动力学CFD方法

提出了一种新的硫酸蒸气沉积预测方法

通过硫酸雾化沉积模型对换热器内硫酸雾滴在壁面上的沉积进行数值模拟

并与小型试验台的试验数据对比

验证沉积理论和数值计算模型的可靠性。结果表明:本文提出的沉积理论与实际相符，该数值模型准确、可靠；换热器内硫酸雾滴动力学沉积的比例占绝大部分；较大的温度梯度会加剧硫酸蒸气的局部沉积速率；较高的烟气流速会增加硫酸蒸气的整体沉积速率；烟气中较高质量浓度的SO3不仅会使酸露点升高

也会大幅增加硫酸蒸气的局部沉积速率。

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