| 侯顺利,卫 魏.多缝型锥管布浆器的探索性研究[J].中国造纸学报,2018,33(1):50-55 |
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| 多缝型锥管布浆器的探索性研究 |
| Exploratory Research on the Multi-slit Tapered Stock Distributor |
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| DOI：10.11981/j.issn.1000-6842.2018.01.50 |
| 中文关键词: 多缝 锥管布浆器 回流量 数值模拟 |
| Key Words:multi-slit tapered stock distributor recirculation value simulation |
| 基金项目:陕西省科技厅省级重点实验室科研项目（2011HBSZS014）。 |
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| 中文摘要: |
| 介绍了一种多缝型锥管布浆器，采用计算机流体动力学方法对该布浆器进行了数值模拟与分析，并对其结构进行了优化。初步研究发现，多缝型锥管布浆器的布浆效果优于支管型锥管布浆器，最大误差缩小了0.9%；优化后缝长为185 mm，多缝入口圆弧半径为7.5 mm，出口圆弧半径为265 mm，扩散管长度为90 mm时，各缝流量分布最大误差为1.43%；多缝型锥管布浆器从结构原理上可以实现在线调节缝宽，以进一步减小布浆流量分布误差，并减小或取消回流量。 |
| Abstract: |
| A multi-slit tapered stock distributor was introduced， and the numerical simulation and analysis of the distributor were carried out by using the computational fluid dynamics method， and its structure was optimized. The preliminary study found that, the distribution of the stock of multi-slit distributor was better than the Branch pipe distributor， the maximum error was reduced by 0.9%. After optimization， when the slit length was 185 mm， the radius of multi-slit entrance was 7.5 mm， the radius of exit arc was 265 mm， and the length of diffuser was 90 mm， the maximum error of the distribution of each slit was 1.43%. Futhermore， based on the structure principle， the slit width could be achieved on-line adjustment， in order to further reduce the flow distribution error， and reduce or eliminate the circulation reflux． |
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