(1)LIULIANGQ  LIULIANGSHIYEXIABENGZAIDANWEISHIJIANNEISHUSONGDEYETILIANG(TIJIHUOZHILIANG)。

    TIJILIULIANGYIQBIAOSHI，GUOJIDANWEISHI：m3/s，GONGCHENGZHONGCHANGYONGDEHAIYOUm3/h、L/sDENG。

    ZHILIANGLIULIANGYIQmBIAOSHI，GUOJIDANWEI：kg/s，GONGCHENGZHONGCHANGYONGDEHAIYOUL／hDENG。

    ZHILIANGLIULIANGHETIJILIULIANGDEGUANXIWEI

    Qm=ρQ    (7-1)

SHIZHONGρ—YETIDEMIDU(kg／m3)；

精选十码期期准     Q—TIJILIULIANG(m3／h)o

精选十码期期准     (2)YANGCHENGH  YANGCHENGSHIZHIYEXIAYEXIABENGSUOCHOUSONGDEDANWEIZHONGLIANGYETITONGGUOYEXIAYEXIABENGHOUHUODEDENENGLIANG，YIHBIAOSHI，DANWEISHIm。

    YANGCHENGSHIYIGENENGLIANGZENGLIANGDEGAINIAN，WEIDANWEIYETICONGYEXIAYEXIABENGJINKOUFALANCHU(YEXIABENGJINKOU)DAOCHUKOUFALANCHU(YEXIABENGCHUKOU)SUOHUODEDENENGLIANGZENGLIANG。

精选十码期期准     YEXIABENGDEYANGCHENGKEYIBIAODAWEI

精选十码期期准     H=E2-E1   (7-2)

精选十码期期准 SHIZHONG  E2—YEXIABENGCHUKOUCHUDANWEIZHONGLIANGYETIDENENGLIANG(m)；

精选十码期期准       E1—YEXIABENGJINKOUCHUDANWEIZHONGLIANGYETIDENENGLIANG(m)。

DANWEIZHONGLIANGYETIDENENGLIANGZAISHUILIXUEZHONGCHENGWEISHUITOU，YOUWEIZHISHUITOUZ、YALISHUITOUP/ρgHESUDUSHUITOUv2/2gSANBUFENZUCHENG，JI：

E2=p2/ρg+v22/2g+z2

精选十码期期准 E1=p1/ρg+v21/2g+z21

精选十码期期准 SHIZHONGP2、P1—YEXIABENGCHUKOU、JINKOUCHUYETIDEJINGYALI(Pa)；

精选十码期期准     V2、V1—YEXIABENGCHUKOU、JINKOUCHUYETIDESUDU(m／s)；

    z2、z1—YEXIABENGCHUKOU、JINKOUCHUZHIYEXIABENGCELIANGJIZHUNMIANDEJULI(m)；

        ρ—YETIMIDU(kg／m3)；

精选十码期期准          g—ZHONGLIJIASUDU(m／s2)。

  YINCI，YEXIABENGYANGCHENGWEI

精选十码期期准    H=E2-E1=（P2-P1）/ρg+（v22-v12）/2g

    YEXIABENGYANGCHENGBIAOZHENGYEXIABENGBENSHENDEXINGNENG，ZHIYUYEXIABENGJINKOU、CHUKOUCHUDEYETINENGLIANGYOUGUAN，ERYUYEXIABENGZHUANGZHIWUZHIJIEGUANXI。DANKELIYONGZHUANGZHIZHONGYETIDENENGLIANGJISUANYEXIABENGDEYANGCHENG。

精选十码期期准     (3)ZHUANSUnZHUANSUSHIYEXIABENGZHOUDANWEISHIJIANNEIDEZHUANSHU，DANWEIWEIr／min。

    (4)GONGLV

精选十码期期准     1)SHURUGONGLVPa：YEXIABENGGONGLVTONGCHANGZHISHURUGONGLV，JIYUANDONGJICHUANDAOYEXIABENGZHOUSHANGDEGONGLV，GUCHENGZHOUGONGLV。SHURUGONGLVYIPaBIAOSHI，GUOJIDANWEIWEIW，GONGCHENGSHANGCHANGYONGkW。

  2)YOUXIAOGONGLVPM：ZHIDANWEISHIJIANNEICONGYEXIABENGZHONGSHUSONGCHUQUDEYETIZAIYEXIABENGZHONGHUODEDEYOUXIAONENGLIANG，YOUCHENGSHUCHUGONGLV。YOUXIAOGONGLVGUOJIDANWEISHIW，GONGCHENGSHANGCHANGYONGkW，CHANGCHENGSHUI(YE)GONGLV。

    PM=ρgQH   

SHIZHONG  Q—YEXIABENGSHUSONGYETILIULIANG(m3／h)；

        H—YEXIABENGYANGCHENG(m)；

精选十码期期准        ρ—YETIMIDU(kg／m3)；

        g—ZHONGLIJIASUDU(m／s2)。 

    (5)YEXIABENGXIAOLVη YEXIABENGXIAOLVDINGYIWEIYEXIABENGYOUXIAOGONGLVYUZHOUGONGLVZHIBI。YEXIABENGDEZHOUGONGLVYUYOUXIAOGONG

精选十码期期准   LVZHICHAWEIYEXIABENGNEIDESUNSHIGONGLV，QIDAXIAOYONGYEXIABENGDEXIAOLVLAIJILIANG。YEXIABENGXIAOLVYIηBIAOSHI

   η=Pu100%/Pa=ρgQH100%/Pa

精选十码期期准     (6)BIXUQISHIYULIANGNPSHr NPSH(Net Positive Suction Head)SHIJINGZHENGXIRUSHUITOUDEYINGWENSUOXIE。

    NPSHrCHENGBIXUQISHIYULIANG。NPSHrWULIYIYISHIZHIYEXIABENGJINKOUDAOYEPIANBEIMIANJIAODIYALICHUNENGLIANGSUNSHI，DANWEISHIm。

    NPSHrSHIYEXIABENGGUYOUDETEXING，ZHIQUJUEYUYEXIABENGBENSHEN，YUWAIBUDEZHUANGZHIWUGUAN。

NPSHrSHITONGGUOSHIYAN，ANZHAOYIDINGDEXINGNENGBIANHUAYUEDINGHUODE。ZHEIZHONGYUEDINGKEYISHIHETONGGUIDING，YEKEYIZHIJIEZHIXINGYEXIABENGSHIYANFANGFABIAOZHUNDEGUIDING。YIBANCAIYONGNPSH3ZUOWEINPSHrZHI，GB／T3216《HUIZHUANDONGLIYEXIABENGSHUILIXINGNENGYANSHOUSHIYANlJIHE2JI》ZHONGNtXSH3DINGYIWEI：JINXINGZHEIZHONGSHIYANSHI，CAIYONGZHUJIANJIANGDINPSHZHIZHIHENGDINGLIULIANGXIA(YIJI)YANGCHENGDEXIAJIANGDADAO3％，CISHIDENPSHZHIJIWEINPSH3.