PRESSURE ANALYSIS OF OPEN TYPE LIQUID-NITROGEN CRYOPUMP

WANG Xian-jin; CHEN Lian; ZHU Jian-bing; CAI Hao

doi:10.3969/j.issn.1006-7086.2014.02.012

WANG Xian-jin, CHEN Lian, ZHU Jian-bing, et al. PRESSURE ANALYSIS OF OPEN TYPE LIQUID-NITROGEN CRYOPUMP[J]. VACUUM AND CRYOGENICS, 2014, 20(2): 116-119. DOI: 10.3969/j.issn.1006-7086.2014.02.012

Citation:

WANG Xian-jin, CHEN Lian, ZHU Jian-bing, et al. PRESSURE ANALYSIS OF OPEN TYPE LIQUID-NITROGEN CRYOPUMP[J]. VACUUM AND CRYOGENICS, 2014, 20(2): 116-119. DOI: 10.3969/j.issn.1006-7086.2014.02.012

Citation:

WANG Xian-jin, CHEN Lian, ZHU Jian-bing, et al. PRESSURE ANALYSIS OF OPEN TYPE LIQUID-NITROGEN CRYOPUMP[J]. VACUUM AND CRYOGENICS, 2014, 20(2): 116-119. DOI: 10.3969/j.issn.1006-7086.2014.02.012

PRESSURE ANALYSIS OF OPEN TYPE LIQUID-NITROGEN CRYOPUMP

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The structure design of a cryopump which is used in plasma stealth system is introduced briefly.The pressure analysis scheme of the pump with flow continuity equation and computational fluid dynamics method is established.The analysis results indicate that axial pressure drop of the pump is mainly occurred near the orifice and the orifice has optimal size.The results guide optimization of cryopump structure and follow-up thermodynamics analysis.

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PRESSURE ANALYSIS OF OPEN TYPE LIQUID-NITROGEN CRYOPUMP

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