| 临界流文丘里喷嘴标定流量装置的研究 |
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| 引用本文： | 余国和,王伯年,陈中,王永鼎,赵高晖,俞成秀. 临界流文丘里喷嘴标定流量装置的研究[J]. 上海理工大学学报(社会科学版), 1995, 0(3) |
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| 作者姓名： | 余国和 王伯年 陈中 王永鼎 赵高晖 俞成秀 |
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| 作者单位： | 华东工业大学动力工程学院，上海水产大学动力学院 |
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| 摘 要： | 本文对ＩＳＯ９３００－１９９０标准中没有作出规定的一些重要内容，诸如用临界流文丘里喷嘴标定气体流量计装置中的气源问题和总体布置问题进行理论分析和试验验证．结果表明，在临界流文丘里喷嘴标定气体流量计装置中，采用高压离心式通风机作为气源以取代目前惯用的真空泵装置是切实可行的．所研制的标定装置精度高、总体布置合理，对今后该类标定装置的发展具有指导意义．
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| 关 键 词： | 临界流，文丘里喷嘴，标定装置，气体流量计，气源 |
Study on calibration facility of gas flowmenter by means of critical flow venturi nozzles |
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| Yu Guohe,Wang Bonian,Chen Zhong,Wang Yongding,Zhao Gaohui,Yu Chengxiu. Study on calibration facility of gas flowmenter by means of critical flow venturi nozzles[J]. Journal of University of Shanghai For Science and Technilogy(Social Science), 1995, 0(3) |
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| Authors: | Yu Guohe Wang Bonian Chen Zhong Wang Yongding Zhao Gaohui Yu Chengxiu |
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| Abstract: | In this paper, the overall design and the generator of gas flow of the calibration facility are analysed and studied. Based on the analysis of gas dynamics, we suggest the common used vacuum pumps in this facility may be replaced by centrifugal blowers with high pressure head. This suggestion was verified by the author's experiment. The overall outline as shown in Fig.2 is suitable and effective for developing this calibration facility. |
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| Keywords: | critical flow venturi nozzles calibration facility gas flowmeter generator of gas flow |
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