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弧形转子的叶片弧度对套轴式对转水力空化反应器空化性能影响的研究
基金项目(Foundation): 流体及动力机械教育部重点实验室开放基金项目(LTDL-2025018)
邮箱(Email):
DOI: 10.13922/j.cnki.cjvst.202512014
发布时间: 2026-05-11
出版时间: 2026-05-11
网络发布时间: 2026-05-11
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摘要:

水力空化技术是一种新型高效氧化技术,广泛应用于工业废水处理、能量转化和环境保护,具有成本低、能效高、操作简便等优点。本文根据实验室已有的套轴式对转水力空化反应器,提出三种不同弧度的弧形转子,研究叶片弧度和转速对套轴式对转水力空化反应器性能的影响,利用Fluent软件进行了模拟计算和参数对比分析。结果显示,叶片弧度与转速共同影响空化表现。2400r/min时,60°叶片空化最强但区域集中,空化体积为331564.1mm3,90°叶片性能均衡,120°叶片最弱;3000r/min时,120°叶片空化体积达到最大,60°和90°叶片性能也提升;4200r/min时,60°和120°叶片因流场失稳性能下降,而90°叶片凭借流道设计优势性能持续增强,稳定性最好。本研究创新性地设计了双转子对转空化反应器,利用逆向旋转克服了单转子结构的空化不均问题,实现了全域强化。

Abstract:

Hydrodynamic cavitation is an emerging and efficient advanced oxidation technology widely used in industrial wastewater treatment, energy conversion, and environmental protection, offering advantages such as low cost, high energy efficiency, and simple operation. Based on an existing coaxial counter?rotating hydrodynamic cavitation reactor, this study proposes three curved rotors with different blade curvatures. Numerical simulations were conducted using Fluent software to compare parameters including cavitation rate, vapor fraction, pressure, and turbulent kinetic energy, aiming to investigate the effects of blade curvature and rotational speed on the reactor's cavitation performance. The results show that both blade curvature and rotational speed jointly influence cavitation performance. At 2400?r/min, the 60° blade produced the strongest yet localized cavitation, with a vapor volume of 331,564.1?mm3, while the 90° blade exhibited balanced performance and the 120° blade the weakest. At 3000?r/min, the 120° blade achieved the maximum vapor volume, and the performance of the 60° and 90° blades also improved. At 4200?r/min, the performance of the 60° and 120° blades declined due to flow instability, whereas the 90° blade, benefiting from its optimized flow?passage design, showed continued performance enhancement and the best stability. This study innovatively designs a counter?rotating dual?rotor cavitation reactor, where reverse rotation overcomes the cavitation unevenness inherent in single?rotor structures and enables full?domain intensification.

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基本信息:

DOI:10.13922/j.cnki.cjvst.202512014

中图分类号:X703

引用信息:

[1]庄鹏,管思桐,王彩霞,等.弧形转子的叶片弧度对套轴式对转水力空化反应器空化性能影响的研究[J].真空科学与技术学报().DOI:10.13922/j.cnki.cjvst.202512014.

基金信息:

流体及动力机械教育部重点实验室开放基金项目(LTDL-2025018)

发布时间:

2026-05-11

出版时间:

2026-05-11

网络发布时间:

2026-05-11

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