| 环缝式引射器变工况特性的试验研究 |
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| 引用本文： | 王志宝,李德文,王树德,郭胜均. 环缝式引射器变工况特性的试验研究[J]. 煤矿机械, 2012, 33(3): 54-56 |
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| 作者姓名： | 王志宝 李德文 王树德 郭胜均 |
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| 作者单位： | 中煤科工集团重庆研究院,重庆,400037 |
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| 摘 要： | 在介绍环缝式引射器的结构和工作原理的基础上,通过试验分析了工作压力、进口静压和背压等因素变化时的变工况特性曲线。结果表明:环缝式引射器存在临界背压pd,当环缝式引射器背压大于pd时,环缝式引射器的引射系数随背压升高而降低;当环缝式引射器背压小于pd时,环缝式引射器的引射系数基本保持不变。
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| 关 键 词： | 环缝式引射器 变工况特性 引射系数 |
Experimental Study of Variational Condtion Characteristic of Girth Type Ejector |
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| WANG Zhi-bao , LI De-wen , WANG Shu-de , GUO Sheng-jun. Experimental Study of Variational Condtion Characteristic of Girth Type Ejector[J]. Coal Mine Machinery, 2012, 33(3): 54-56 |
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| Authors: | WANG Zhi-bao LI De-wen WANG Shu-de GUO Sheng-jun |
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| Affiliation: | (Chongqing Branch of China Coal Research Institute,Chongqing 400037,China) |
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| Abstract: | Based on structure and principle of girth type ejector,variational condition characteristic curve is analyzed with working pressure,import static pressure and back pressure.The results show that there exists a critical discharge pressure pd,As the discharge pressure is higher than pd,ejecting factor decreases with enhancement of discharge pressure.While discharge pressure is lower than pd,ejecting factor will keep constant. |
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| Keywords: | girth type ejector variational condition characteristic ejecting factor |
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