皇冠即时比分

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水泵的并联运行

水泵百科 卧泉泵业 763浏览 0评论

水泵的并联运行:

不同型号、布置不对称在同水位下两台水泵的并联运行,线与及(Q^)’n曲线相交于r及f两点,则QhQn即为水泵I、水泵II在并联运行时的单泵流量,QM=Qi+Qn;再由I、II两点各引垂线向上,与(Q-H)n曲线分别交于I、n两点。显然,I、n两点就是并联运行时,水泵I、水泵n各自的工况点,扬程分别为由r、n’两点各引垂线向下,与及(Q-N)n曲线分别相交于I”和If点,此两点的iVI&Nn就是两台水泵并联运行时,各台自吸式磁力泵水泵的轴功率值。同样,其效率点分别为r、r点,其效率值分别为71、Vn。

JIJINGGONGSHUISHILIANGTAISHUIBENGBINGLIANYUNXING,ZAIWOGUOBEIFANGPINGYUANDIQU,YOUYUDIBIAOSHUIZIYUANKUIFA,CHANGYIDIXIASHUIZUOWEIGONGSHUIDESHUIYUAN。ZHEIZHONGGONGSHUIFANGSHIYIJINGYIBENG,BENGDEYASHUIGUANYONGLIANLUOGUANLIANJIEHOU,JIANGSHUISONGWANGSHUICHANGHUOYONGHU,ZHEISHIXUQUEDINGBENGBINGLIANHOUDEZONGLIULIANGJIMEITAIBENGDELIULIANG、XIAOLVDENGCANSHU。QIZUOFASHIJIANLIZUOBIAOXI,HENGZHOUWEILIULIANG,HEJINGZHONGJINGSHUIWEITONGGAO,ZONGZHOUWEIYANGCHENG。GENJUSUOXUANSHUIBENGFENBIEZAIZUOBIAOXIZHONGHUACHUMEITAIBENGDEQ-H、Q-7QUXIAN。GENJUCHOUSHUISHIYANZILIAOFENBIEHUACHUMEIYANJINGZHONGSHUIWEIJIANGSHENSUIJINGYONGSHUILIANGERBIANHUADEQUXIAN(&S)jHE(Q-S)n。ZUOBINGLIANJIEDIANCDAOGUANWANGKONGZHIDIANGUANDAODESHUITOUSUNSHISUILIULIANGERBIANHUADEGUANXIQUXIANQ-2^。FENBIEZUOCHUAC、BCGUANDAODESHUITOUSUNSHISUILIULIANGERBIANHUADEGUANXIQUXIANQ-2/tACHEQ_I^BC。

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Q-HXUYU(Q~H)’I+nQUXIANDEJIAODIANMSUODUIYINGDELIULIANGQMWEILIANGBENGDELIULIANGZHIHE。RANHOUGUOMDIANXIANGZONGZHOUZUOCHUIXIANFENBIEJIAO(0-ZHI)’1HE(0-ZHI)’11QUXIANYUI、nLIANGDIAN;GUOIHEnDIANXIANGHENGZHOUZUOCHUIXIANKEFENBIEDECHUMEITAIBENGDELIULIANGQiHEQn;MEITAISHUIBENGDEXIAOLV71HEpJIMEIYANJINGZHONGDESHUIWEIJIANGSHEN31HE511。

RUGUOMEITAIBENGDELIULIANGFENBIEXIAOYUDENGYUGAIJINGDEZUIDAYONGSHUILIANG,QIEMEITAIBENGDEXIAOLVJUNZAIGAOXIAODUANFANWEINEISHI,SHUOMINGSUOXUANSHUIBENGSHIYI。FOUZEYINGZHONGXINXUANBENG,ZHIDAOMANZUYAOQIUWEIZHI。XUYAOZHICHUDESHI,DANGLIANGJINGZHONGDEJINGSHUIWEIBUTONGSHI,ZHEISHIKEANJINGSHUIWEIMAISHENJIAOQIANDEJINGZHONGJINGSHUIWEIZUOWEIHENGZHOULIULIANG,ERZAIHUILINGYITAISHUIBENGBINGLIANYIQIANGUANDAODESHUITOUSUNSHISUILIULIANGERBIANHUADEGUANXIQUXIANSHI,JIANGQISHUITOUSUNSHIZHIJIASHANGLIANGJINGJINGSHUIWEIZHICHAJIKE,QIYUZUOFABUBIAN。

同型号、同水位、对称布置一定一调两台水泵的并联运行,两台高温磁力泵水泵并联运行,当一台水杲为定速泵,另一台水泵为变速泵时。

皇冠即时比分ZHEISHIBINGLIANYUNXINGZHONGKENENGHUIYUDAODEWENTIYOULIANGLEI:QIYISHIDINGSUBENGDEZHUANSUYUBIANSUBENGDEZHUANSUJUNWEIYIZHI,QIULIANGTAISHUIBENGBINGLIANYUNXINGSHIDEGONGKUANGDIAN。ZHEILEIWENTISHIJISHANGSHITONGXINGHAO、TONGSHUIWEI、DUICHENGBUZHILIANGTAISHUIBENGDEBINGLIANYUNXINGZHONG,YOUYUYITAISHUIBENGBIANSU,ERYINQIDINGSUBENGYUBIANSUBENGDEQ-HQUXIANYOUWANQUANDEBINGLIANZHUANHUAWEIBUWANQUANBINGLIANDEGUOCHENG,QIGONGKUANGDIANKEANQIANSHUFANGFAQIUDE。QIERSHIGENJUYONGHUDUIBENGZHANGONGSHUILIANGDEYAOQIU,QIUBIANSUBENGDEZHUANSUZHI。

ZHEILEIWENTIJIAOFUZA,XIANZHIZHILIANGSHUIBENGZONGGONGSHUI|LIANGQp,ERBIANSUBENGDEGONGKUANGDIAN(Qi,Hi),DINGSUBENGDEGONGKUANGDIAN(Qn,Hn)JIBIANSUBENGDEZHUANSUZHIQIAODENG|WEI5GEWEIZHISHU。

皇冠即时比分ZHIJIEQIUJIENANDUHENDA,ZHEISHIKEYONGKOUSUNDEFANGFALAIQIUJIE,QIFANGFABUZHOUWEI:

1.HUACHULIANGTAITONGXINGHAOSHUIBENGEDINGZHUANSUSHIDE(Q-H)

皇冠即时比分2.I、nQUXIAN,ANHXU=Hst+SfgQ2LICHU|GUANDAOXITONGTEXINGQUXIANQ-HXU,BINGDECHUPDIAN。

3.PDIANDEZONGZUOBIAOJIWEIFDIANCEYAGUANSHUIMIANZHIXISHUIJINGSHUIMIANDEGAOCHAHf。

皇冠即时比分4.HUACHUGUANDAODESHUITOUSUNSHISUILIULIANGERBIANHUADEGUANXIQUXIANQ-S/ief,ZAIDINGSUBENGDE|(Q-H)nQUXIANSHANGKOUCHUQ^SAefDE5.(Q_H)’dQUXIAN,TAYUFDIANCEYAGUANSHUIMIANXIAN(HFGAODUXIAN)XIANGJIAOYUHDIAN。YOUHDIANXIANGSHANGYINXIANJIAO(Q-H);QUXIANYUDIAN,JDIANJIWEIDINGSUBENGDEGONGKUANGDIAN(Qi、|Hn),BIANSUBENGDELIULIANGQi=Qp-Qn,BIANSUBENGDEYANGCHENGWEIHi=Hp+SdfQ2i。

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