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| 低质量流速下四头内螺纹管内汽-水两相流摩擦压降特性试验研究 | |
| 引用本文： | 吴友佩,李强,朱晓静,王建国,毕勤成.低质量流速下四头内螺纹管内汽-水两相流摩擦压降特性试验研究[J].化工机械,2011,38(1):19-23. |
| 作者姓名： | 吴友佩 李强 朱晓静 王建国 毕勤成 |
| 作者单位： | 1. 中国电力工程顾问集团西北电力设计院 2. 西安热工研究院有限公司 3. 西安交通大学 |
| 摘 要： | 在压力为11.3-21.5MPa、质量流速为250～1 200kg/(m2·s)和工质干度为0～1的工况范围内,对结构为Φ28.6mm×5.8mm的四头内螺纹管中汽水两相流体在水平绝热条件下的摩擦压降特性进行了试验研究.研究结果表明,内螺纹管内两相流体摩擦压降大于同等条件下光管;两相摩擦倍率随工质干度的增大,在高干度时... |
| 关 键 词： | 四头内螺纹管 摩擦压降特性 水平管 两相流 |
Frictional Pressure Drop of Gas-Water Flow in Four-head Internal Screw Tube with Low Mass Velocity |
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| WU Youpei,LI Qiang,ZHU Xiaojing,WANG Jianguo,BI Qincheng.Frictional Pressure Drop of Gas-Water Flow in Four-head Internal Screw Tube with Low Mass Velocity[J].Chemical Engineering & Machinery,2011,38(1):19-23. | |
| Authors: | WU Youpei LI Qiang ZHU Xiaojing WANG Jianguo BI Qincheng |
| Affiliation: | 1Northwest Electric Power Design Institute,Xi＇an710049,Shanxi,China;2Xi＇an Thermal Power Research Institute Co.,Ltd.,China;3Xi＇an Jiaotong University,Xi＇an710049,Shanxi,China) |
| Abstract: | While the pressure drop ranging between11.3 to 21.5MPa,and the mass velocity between 250 and 1 200kg/（m2·s） and the dryness between 0 and 1,the frictional pressure drop of steam-water flow in horizontal four-head rifled tube（28.6mm×5.8mm） were studied under adiabatic condition.The experimental results show that the frictional pressure drop of two phase flow in rifled tube can be higher than that in the smooth tube,and the friction multiplier can increase with rise of dryness and reach the peak at the moment the dryness becomes high,and then it begins to decease with continuous rise of the dryness.The mass velocity influences little on friction multiplier.The friction multiplier decreases with rise of the working medium pressure. |
| Keywords: | Four Head Rifled Tube Frictional Pressure Drop Characteristic Horizontal Tube Two Phase Flow |
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