| 喷嘴距对水蒸汽喷射泵工作性能的影响分析 |
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| 引用本文： | 林丽生,;廖国进.喷嘴距对水蒸汽喷射泵工作性能的影响分析[J].长春大学学报,2014(8):1043-1047. |
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| 作者姓名： | 林丽生 ;廖国进 |
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| 作者单位： | [1]湄洲湾职业技术学院机械工程系,福建莆田351254; [2]辽宁工业大学机械工程与自动化学院,辽宁锦州121001 |
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| 摘 要： | 利用流体力学计算软件FLUENT对水蒸汽喷射泵的工作性能进行数值模拟,通过合理的模型假设与简化,对计算模型进行网格划分与求解,从而得到水蒸汽喷射泵的内部流体流动形态和引射系数。保持工作参数和其它几何参数不变,仅改变喷嘴距的大小,模拟计算出水蒸汽喷射泵在不同喷嘴距下的引射系数,根据引射系数和内部流场的变化情况,分析其影响规律,从而找出较好的喷嘴距取值范围。
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| 关 键 词： | 水蒸汽喷射泵 FLUENT 数值模拟 喷嘴距 |
Analysis on the Influence of Nozzle Distance on Performance of Steam Ejector Pump |
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| Institution: | LIN Lisheng, LIAO Guojin (1. Department of Mechanical Engineering, Meizhouwan Vocational Technology College, Putian 351254, China; 2. College of Mechanical Engineering and Automation, Liaoning University of Technology, Jinzhou 121001, China) |
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| Abstract: | In this paper, a numerical simulation on the performance of steam ejector pump is made by fluid dynamics software FLU-ENT. Through reasonable assumptions and model simplification, the calculation model is meshed and solved. The inside fluid flow pat-tern of steam ejector pump is obtained and the entrainment ratio is calculated. Maintaining the operating parameters and other geomet-rical parameters constant, it calculates the entrainment ratio of all steam ejector pumps in different distances only by changing the dis-tance between nozzles. According to the changes of entrainment ratio and inside fluid flow pattern, it analyzes the impact of the nozzle distance and finds out a better range of the nozzle distance. |
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| Keywords: | steam ejector pump FLUENT numerical simulation nozzle distance |
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