内孔式旋转空化器参数对空化效果的影响
Influence of Endocavitating Rotary Cavitator Parameters on Cavitation Effect
韩桂华 1朱宜鹏 1洪健 1李大尉2
作者信息
- 1. 哈尔滨理工大学 机械动力工程学院,哈尔滨 150080
- 2. 黑龙江省科学院 高技术研究院,哈尔滨 150020
- 折叠
摘要
通过控制变量法使用Fluent软件对内孔式旋转空化器进行数值模拟,得到结构参数(盲孔的孔径、孔深,单排盲孔个数)和操作参数(转速、入口压力)对空化效果的影响规律:转子盲孔孔径、孔深、单排盲孔个数增加,转速(2000～3000 r/min)增加,则盲孔中气体体积增加;入口压力(1 MPa～4 MPa)增加,则盲孔中气体体积减小.实验中以纯水水样空化过程中温升和电导率的变化为空化效果检验标准,在3 000～9 000 r/min随着转速的增加,温升和电导率显著增加,间接验证数值模拟的结果.本文为内孔式旋转空化器的结构参数优化提供参考.
Abstract
In this paper,the numerical simulation of the rotary cavitator with internal bore using Fluent software was carried out by the control variable method,and the influence law of structural parameters(bore diameter and depth of blind bore,number of single row of blind bore)and operating parameters(rotational speed and inlet pressure)on the cavitation effect was obtained:the increase of bore diameter,bore depth and number of single row of blind bore of rotor,and the increase of rotational speed(2000～3000r/min),the volume of gas in the blind bore If the inlet pressure(1 MPa～4 MPa)increases,the volume of gas in the blind bores decreases.The temperature rise and conductivity changes of the cavitation process of pure water samples were used as the cavitation effect test criteria,and the temperature rise and conductivity increased significantly with the increase of rotational speed from 3000～9000 r/min to indirectly verify the results of numerical simulation.This paper provides a reference for the optimization of the structural parameters of the endocavitating rotary cavitator.
关键词
内孔式/旋转空化器/空化器参数/空化效果/影响规律Key words
internal bore type/rotary cavitation/cavitation parameters/cavitation effect/influence law引用本文复制引用
基金项目
黑龙江省自然科学基金(E2016)
国家自然科学基金(51375123)
黑龙江省科学院科学研究基金(KY2020GJS03)
黑龙江省省属科研院所科研业务费项目(SJKYYWFC2021GY02)
黑龙江省省属科研院所科研业务费项目(ZNBZ2022GJS03)
出版年
2024
NETL
NSTL
万方数据