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哪些原因会导致真空泵的真空度低?

时间:2018-07-14 14:26   来源:haomengda.com  作者:aadmin

  哪些原因会导致真空泵的真空度低?

  DUIYUZHENKONGDUDEBIAOSHITONGCHANGYOULIANGZHONGFANGFA,YISHIYONGJUEDUIYALI(JI:JUEDUIZHENKONGDU)BIAOSHI,ERSHIYONGXIANGDUIYALI(JI:XIANGDUIZHENKONGDU)BIAOSHI。SUOWEI"JUEDUIYALI"SHIZHI,ZHENKONGBENGYUJIANCERONGQIXIANGLIAN,JINGGUOZUGOUSHIJIANLIANXUCHOUQIHOU,RONGQINEIDEYALIBUZAIJIXUXIAJIANGERWEICHIMOUYIDINGZHI,ZHEISHIRONGQINEIDEQITIYALIZHIJIUSHIBENGDEJUEDUIYALI。RUGUORONGQINEIJUEDUIMEIYOUQITI,NEIMEJUEDUIYALIJIUSHILING,ZHEISHILILUNZHENKONGZHUANGTAI。ZAISHIJIQINGKUANGZHONG,ZHENKONGBENGDEJUEDUIYALIZHIJIEYU0~101.325KPaZHIJIAN。JUEDUIYALIZHIXUYAOYONGJUEDUIYALIYIBIAOCELIANG,ZAI20℃HAIBAGAODUWEI0DEDIFANG,YIBIAODECHUSHIZHIWEI101.325KPa。JIANERYANZHI,YI“LILUNZHENKONG”ZUOWEICANZHAOLAIBIAOSHIDEQIYA,CHENGWEI:“JUEDUIYALI”HUO“JUEDUIZHENKONGDU”。

  ZHENKONGBENG "XIANGDUIZHENKONGDU"SHIZHIBEICEDUIXIANGDEYALIYUCELIANGDIDIANDAQIYADECHAZHI。YONGPUTONGZHENKONGBIAOCELIANG。ZAIMEIYOUZHENKONGDEZHUANGTAIXIA,BIAODECHUSHIZHIWEI0。DANGCELIANGZHENKONGSHI,TADEZHIJIEYU0DAO-101.325KPa(YIBANYONGFUSHUBIAOSHI)ZHIJIAN。BIRU,CELIANGZHIWEI-30KPa,ZEBIAOSHIBENGKEYICHOUDAOBICELIANGDIDIANDEDAQIYADI30KPaDEZHENKONGZHUANGTAI。TONGYITAIBENGZAIBUTONGDEDIDIANCELIANG,QIXIANGDUIYALIZHIKENENGSHIBUTONGDE,YINWEIBUTONGCELIANGDIDIANDEDAQIYASHIBUTONGDE,ZHEISHIGEDIDEHAIBAGAODU、WENDUDENGBUTONGKEGUANTIAOJIANZAOCHENGDE。JIANERYANZHI,YI“CELIANGDIDIANDAQIYA”ZUOWEICANZHAOLAIBIAOSHIDEQIYA,CHENGWEI:“XIANGDUIYALI”HUO“XIANGDUIZHENKONG”。 GUOJIZHENKONGXINGYETONGYONGDE“ZHENKONGDU”,YESHIKEXUEDESHIYONGJUEDUIYALIBIAOSHI;ZHIDESHI“JIXIANZHENKONG、JUEDUIZHENKONGDU、JUEDUIYALI”(WOGONGSIYUZHIYIZHI),DAN“XIANGDUIZHENKONGDU”(XIANGDUIYALI、ZHENKONGBIAOBIAOYA、FUYA)YOUYUCELIANGDEFANGFAJIANBIAN、CELIANGYIQIFEICHANGPUBIAN、RONGYIMAIDAOQIEJIAGEBIANYI,YINCIYEYOUGUANGFANYINGYONG。LILUNSHANGERZHESHIKEYIXIANGHUHUANSUANDE,LIANGZHEHUANSUANFANGFARUXIA:XIANGDUIZHENKONGDU=JIXIANZHENKONGDU(JUEDUIYALI)-CELIANGDIDIANDEQIYALIRU:YOUYIZHONGWEIXINGZHENKONGBENGPK4512DEJIXIANZHENKONGDUWEI45KPa,ZETADEXIANGDUIZHENKONGDUYUEWEI45-100=-55Kpa,ZAICHANGYONGDEXIANGDUIZHENKONGBIAOSHANGJIUXIANSHIWEIFU0.055MpaZUOYOU(YINWEIYUDANGDIDAQIYAYOUGUANXI),ZHEIJIUSHIWEISHENMEYOUDEKEHUZAIMAILEBENGHUIQUYONGZHENKONGBIAOCELIANGHOU,WUHUISHENGCHANCHANGJIACANSHUMEIDADAO,CHALEHENYUANDEYUANYIN。



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