王中王三肖选一肖

离心泵使用时的调节方式与能源耗损分析
来源:vistarweb.com 发布时间:2015-08-26 09:19

  HUAGONGLIXINBENGSHIGUANGFANYINGYONGYUHUAGONGGONGYEXITONGDEYIZHONGTONGYONGLIUTIJIXIE。TAJUYOUXINGNENGSHIYINGFANWEIGUANG(BAOKUOLIULIANG、YATOUJIDUISHUSONGJIEZHIXINGZHIDESHIYINGXING)、TIJIXIAO、JIEGOUJIANDAN、CAOZUORONGYI、CAOZUOFEIYONGDIDENGZHUDUOYOUDIAN。TONGCHANG,SUOXUANHUAGONGLIXINBENGDELIULIANG、YATOUKENENGHUIHEGUANLUZHONGYAOQIUDEBUYIZHI,HUOYOUYUSHENGCHANRENWU、GONGYIYAOQIUFASHENGBIANHUA,CISHIDOUYAOQIUDUIBENGJINXINGLIULIANGDIAOJIE,SHIZHISHIGAIBIANHUAGONGLIXINBENGDEGONGZUODIAN。HUAGONGLIXINBENGDEGONGZUODIANSHIYOUBENGDETEXINGQUXIANHEGUANLUXITONGTEXINGQUXIANGONGTONGJUEDINGDE,YINCI,GAIBIANRENHEYIGEDETEXINGQUXIANDOUKEYIDADAOLIULIANGDIAOJIEDEMUDE。MUQIAN,HUAGONGLIXINBENGDELIULIANGDIAOJIEFANGSHIZHUYAOYOUDIAOJIEFAKONGZHI、BIANSUKONGZHIYIJIBENGDEBING、CHUANLIANDIAOJIEDENG。YOUYUGEZHONGDIAOJIEFANGSHIDEYUANLIBUTONG,CHUYOUZIJIDEYOUQUEDIANWAI,ZAOCHENGDENENGLIANGSUNHAOYEBUYIYANG,WEILEXUNQIUZUIJIA、NENGHAOZUIXIAO、ZUIJIENENGDELIULIANGDIAOJIEFANGSHI,BIXUQUANMIANDILEJIEHUAGONGLIXINBENGDELIULIANGDIAOJIEFANGSHIYUNENGHAOZHIJIANDEGUANXI。

  1、BENGLIULIANGDIAOJIEDEZHUYAOFANGSHI

王中王三肖选一肖   1.1GAIBIANGUANLUTEXINGQUXIAN

  改变化工离心泵王中王三肖选一肖流量最简单的方法就是利用泵出口阀门的开度来控制,其实质是改变管路特性曲线的位置来改变泵的工作点。

  1.2GAIBIANHUAGONGLIXINBENGTEXINGQUXIAN

  GENJUBILIDINGLVHEQIEGEDINGLV,GAIBIANBENGDEZHUANSU、GAIBIANBENGJIEGOU(RUQIEXUEYELUNWAIJINGFADENG)LIANGZHONGFANGFADOUNENGGAIBIANHUAGONGLIXINBENGDETEXINGQUXIAN,CONGERDADAODIAOJIELIULIANG(TONGSHIGAIBIANYATOU)DEMUDE。DANSHIDUIYUYIJINGGONGZUODEBENG,GAIBIANBENGJIEGOUDEFANGFABUTAIFANGBIAN,BINGQIEYOUYUGAIBIANLEBENGDEJIEGOU,JIANGDILEBENGDETONGYONGXING,JINGUANTAZAIMOUXIESHIHOUDIAOJIELIULIANGJINGJIFANGBIAN[1],ZAISHENGCHANZHONGYEHENSHAOCAIYONG。ZHEILIJINFENXIGAIBIANHUAGONGLIXINBENGDEZHUANSUDIAOJIELIULIANGDEFANGFA。CONGTU1ZHONGFENXI,DANGGAIBIANBENGZHUANSUDIAOJIELIULIANGCONGQ1XIAJIANGDAOQ2SHI,BENGDEZHUANSU(HUODIANJIZHUANSU)CONGn1XIAJIANGDAOn2,ZHUANSUWEIn2XIABENGDETEXINGQUXIANQ-HYUGUANLUTEXINGQUXIANHe=H0+G1Qe2(GUANLUTEQUXIANBUBIANHUA)JIAOYUDIANA3(Q2,H3),DIANA3WEITONGGUODIAOSUDIAOJIELIULIANGHOUXINDEGONGZUODIAN。CIDIAOJIEFANGFADIAOJIEXIAOGUOMINGXIAN、KUAIJIE、ANQUANKEKAO,KEYIYANZHANGBENGSHIYONGSHOUMING,JIEYUEDIANNENG,LINGWAIJIANGDIZHUANSUYUNXINGHAINENGYOUXIAODEJIANGDIHUAGONGLIXINBENGDEQISHIYULIANGNPSHr,SHIBENGYUANLIQISHIQU,JIANXIAOHUAGONGLIXINBENGFASHENGQISHIDEKENENGXING[2]。QUEDIANSHIGAIBIANBENGDEZHUANSUXUYAOYOUTONGGUOBIANPINJISHULAIGAIBIANYUANDONGJI(TONGCHANGSHIDIANDONGJI)DEZHUANSU,YUANLIFUZA,TOUZIJIAODA,QIELIULIANGDIAOJIEFANWEIXIAO。

  1.3BENGDECHUAN、BINGLIANDIAOJIEFANGSHI

  DANGDANTAIHUAGONGLIXINBENGBUNENGMANZUSHUSONGRENWUSHI,KEYICAIYONGHUAGONGLIXINBENGDEBINGLIANHUOCHUANLIANCAOZUO。YONGLIANGTAIXIANGTONGXINGHAODEHUAGONGLIXINBENGBINGLIAN,SUIRANYATOUBIANHUABUDA,DANJIADALEZONGDESHUSONGLIULIANG,BINGLIANBENGDEZONGXIAOLVYUDANTAIBENGDEXIAOLVXIANGTONG;HUAGONGLIXINBENGCHUANLIANSHIZONGDEYATOUZENGDA,LIULIANGBIANHUABUDA,CHUANLIANBENGDEZONGXIAOLVYUDANTAIBENGXIAOLVXIANGTONG。

  2、BUTONGDIAOJIEFANGSHIXIABENGDENENGHAOFENXI

王中王三肖选一肖   ZAIDUIBUTONGDIAOJIEFANGSHIXIADENENGHAOFENXISHI,WENZHANGJINZHENDUIMUQIANGUANGFANCAIYONGDEFAMENDIAOJIEHEBENGBIANZHUANSUDIAOJIELIANGZHONGDIAOJIEFANGSHIJIAYIFENXI。YOUYUHUAGONGLIXINBENGDEBING、CHUANLIANCAOZUOMUDEZAIYUTIGAOYATOUHUOLIULIANG,ZAIHUAGONGLINGYUYUNYONGBUDUO,QINENGHAOKEYIJIEHETU2JINXINGFENXI,FANGFAJIBENXIANGTONG。

  2.1FAMENDIAOJIELIULIANGSHIDEGONGHAO

  HUAGONGLIXINBENGYUNXINGSHI,DIANDONGJISHURUBENGZHOUDEGONGLVNWEI:

王中王三肖选一肖   N=vQH/η

  SHIZHONGN——ZHOUGONGLV,w;

王中王三肖选一肖   Q——BENGDEYOUXIAOYATOU,m;

  H——BENGDESHIJILIULIANG,m3/s;

王中王三肖选一肖   v——LIUTIBIZHONG,N/m3;

王中王三肖选一肖   η——BENGDEXIAOLV。

王中王三肖选一肖   DANGYONGFAMENDIAOJIELIULIANGCONGQ1DAOQ2,ZAIGONGZUODIANA2XIAOHAODEZHOUGONGLVWEI:

王中王三肖选一肖   NA2=vQ2H2/η

王中王三肖选一肖   vQ2H3——SHIJIYOUYONGGONGLV,W;

  vQ2(H2-H3)——FAMENSHANGSUNHAODEGONGLV,W;

  vQ2H2(1/η-1)——HUAGONGLIXINBENGSUNSHIDEGONGLV,W。

离心泵使用时的调节方式与能源耗损分析

王中王三肖选一肖   2.2BIANSUDIAOJIELIULIANGSHIDEGONGHAO

  ZAIJINXINGBIANSUFENXISHIYINYAOYONGDAOHUAGONGLIXINBENGDEBILIDINGLV,GENJUQIYINGYONGTIAOJIAN,YIXIAFENXIJUNZHIHUAGONGLIXINBENGDEBIANSUFANWEIZAI±20%NEI,QIEHUAGONGLIXINBENGBENSHENXIAOLVDEBIANHUABUDA[3]。YONGDIANDONGJIBIANSUDIAOJIELIULIANGDAOLIULIANGQ2SHI,ZAIGONGZUODIANA3BENGXIAOHAODEZHOUGONGLVWEI:

王中王三肖选一肖   NA3=vQ2H3/η

  TONGYANGJINGBIANHUANKEDE:

  NA3=vQ2H3+vQ2H3(1/η-1)(2)

  SHIZHONGvQ2H3——SHIJIYOUYONGGONGLV,W;

  vQ2H3(1/η-1)——HUAGONGLIXINBENGSUNSHIDEGONGLV,W。

王中王三肖选一肖   2.3NENGHAODUIBIFENXI

  3、JIELUN

  DUIYUMUQIANHUAGONGLIXINBENGTONGYONGDECHUKOUFAMENDIAOJIEHEBENGBIANZHUANSUDIAOJIELIANGZHONGZHUYAOLIULIANGDIAOJIEFANGSHI,BENGBIANZHUANSUDIAOJIEJIEYUEDENENGHAOBICHUKOUFAMENDIAOJIEDADEDUO,ZHEIDIANKEYICONGLIANGZHEDEGONGHAOFENXIHEGONGHAODUIBIFENXIKANCHU。TONGGUOHUAGONGLIXINBENGDELIULIANGYUYANGCHENGDEGUANXITU,KEYIGENGWEIZHIGUANDEFANYINGCHULIANGZHONGDIAOJIEFANGSHIXIADENENGHAOGUANXI。TONGGUOBENGBIANSUDIAOJIELAIJIANXIAOLIULIANGHAIYOULIYUJIANGDIHUAGONGLIXINBENGFASHENGQISHIDEKENENGXING。DANGLIULIANGJIANXIAOYUEDASHI,BIANSUDIAOJIEDEJIENENGXIAOLVYEYUEDA,JIFAMENDIAOJIESUNHAOGONGLVYUEDA,DANSHI,BENGBIANSUGUODASHIYOUHUIZAOCHENGBENGXIAOLVJIANGDI,CHAOCHUBENGBILIDINGLVFANWEI,YINCI,ZAISHIJIYINGYONGSHIYINGGAICONGDUOFANGMIANKAOLV,ZAIERZHEZHIJIANZONGHECHUZUIJIADELIULIANGDIAOJIEFANGFA。

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王中王三肖选一肖SHAOHOUNINJIANGJIEDAOWOMENDELAIDIANQINGZHUNBEIJIETING

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王中王三肖选一肖SHAOHOUNINJIANGJIEDAOWOMENDELAIDIANQINGZHUNBEIJIETING