| 喷嘴可调式蒸汽喷射器的性能计算 |
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| 引用本文： | 沈胜强,宋煜,张琨,杨勇.喷嘴可调式蒸汽喷射器的性能计算[J].热科学与技术,2010,9(1):64-69. |
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| 作者姓名： | 沈胜强 宋煜 张琨 杨勇 |
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| 作者单位： | 大连理工大学,海洋能源利用与节能教育部重点实验室,辽宁,大连,116024 |
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| 基金项目： | 国家自然科学基金项目 |
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| 摘 要： | 基于气体动力学函数法,建立了的喷嘴可调式蒸汽喷射器的变工况性能计算模型。应用该模型得到了喷射器压缩蒸汽压力变化时,不同喷嘴喉口面积下喷射器性能的变化规律,为研究喷嘴可调式喷射器的变工况性能提供依据。结果表明:减小喷嘴喉口面积,喷射器的最佳工作点具有较高的喷射系数,同时该点的压缩蒸汽压力、压缩蒸汽温度较低;喷射器压缩蒸汽流量随喷嘴喉口面积减小而降低。
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| 关 键 词： | 蒸汽喷射器 可调喷嘴 变工况 |
Performance calculation of adjustable nozzle steam ejector |
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| SHEN Sheng-qiang,SONG Yu,ZHANG Kun,YANG Yong.Performance calculation of adjustable nozzle steam ejector[J].Journal of Thermal Science and Technology,2010,9(1):64-69. |
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| Authors: | SHEN Sheng-qiang SONG Yu ZHANG Kun YANG Yong |
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| Affiliation: | SHEN Sheng-qiang,SONG Yu,ZHANG Kun,YANG Yong(Key Lab.of Ocean Energy Utilization , Energy Conserv.of Ministry of Edu.,Dalian Univ.of Tech.,Dalian 116024,China) |
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| Abstract: | A variation operating condition calculation model of the adjustable nozzle steam ejector is developed based on aerodynamic function method.This model gives the variation of the performance of the ejector as a function of the discharge pressure for different area values of the throat of the nozzle,and provides a foundation for the research of the performance of the adjustable ejector under variation condition.The result shows that as the area value was minimized the critical point of the ejector has higher e... |
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| Keywords: | steam ejector adjustable nozzle variation operating condition |
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