换热设备螺旋流态化清洗粒子沉积试验研究

向寓华; 俞天兰; 余祥云

换热设备螺旋流态化清洗粒子沉积试验研究

1.
湖南化工职业技术学院, 株洲 412004;
2.
湘潭大学, 湘潭 411105

基金项目:

湖南省科技厅项目(2013GK3052)资助

详细信息

作者简介:
向寓华(1968-)，副教授，硕士，研究方向为强化传热及流体模拟计算，hnhgxyxyh@163.com

计量
- 文章访问数: 141
- HTML全文浏览量: 28
- PDF下载量: 6
- 被引次数: 0
出版历程
- 收稿日期: 2012-09-05
- 刊出日期: 2015-06-10

Study on the Spiral Fluidization Cleaning Particle Deposition Test in Heat Exchanger

1.
Hunan Chemical Vacation Technology College, Zhuzhou 412004;
2.
Xiangtan University, Xiangtan 411105

摘要

摘要: 螺旋流态化自动清洗技术是螺旋钢丝与液固流态化有机结合,实现对其进行在线自动防除垢、强化传热的目的。运用旋液流态化技术设计模拟试验方案,提出在流态化粒子进入换热管部分采用截面向上逐渐减小的倾斜挡板结构,有效的解决流态化粒子在换热管内分布均匀问题。采用流量分别为8.8 m3/h、10 m3/h、12 m3/h进行试验,观察平均直径为3 mm的粒子在进口处的分布情况,测量各换热管的流动速度分布,优化换热管中流态化粒子均匀分布的管箱结构,流化态粒子的平均沉降速度为0.3~0.4 m/s,得到实现流态化粒子自然循环、在高速情况下的液固分离目的结构。
- 螺旋流态化 /
- 粒子沉积 /
- 清洗 /
- 挡板
Abstract: The spiral fluidized automatic cleaning technology was Organic combination of spiral wire cleaning and the liquid-solid fluidized cleaning technology, which could effectively prevent descaling, strengthen the automatic on-line heat transfer. The simulation experiment has been devised by spiral fluidization technology, the sloping baf-fle structure with the cross section upward tilt decreasing in the heat exchange tube had been put forward, which ef-fectively solved the technical problems of fluidized particles in the realization of the uniform distribution of heat ex-change tube. with the average diameter particles was 3 mm and the flow respectively was 8.8 m 3/h, 10 m 3/h, 12 m 3/h, the distribution of the fluidized particles and velocity had been measured and the average fluidized parti-cles sedimentation velocity was 0.3～0.4 m/s, the uniform distribution of heat exchange tube box structure had been optimized , which realized natural cycle of fluidized particles in high-speed situation, liquid-solid separation objec-tive structure.
- cleaning /
- computer simulation /
- deposition /
- experiments

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参考文献(14)

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