偏心式蝶閥閥桿力矩計(jì)算書,,,,,,,

,,,,,產(chǎn)品編號(hào)：,,

蝶閥閥桿力矩MD/N·mm,,,蝶板處于密封狀態(tài)時(shí),,閥桿直徑dF/mm（設(shè)計(jì)選定）,,p取公稱壓力PN

,,,45284945.71,,30,,10

,,,蝶板處于啟閉過程時(shí),,蝶板密封半徑R/mm（設(shè)計(jì)選定）,,蝶板直徑D/mm（設(shè)計(jì)選定）

,,,45242703.09,,300,,600

密封面間摩擦力矩MM/N·mm,,,,,密封面的接觸寬度bM/mm（設(shè)計(jì)選定）,,填料寬度bT（設(shè)計(jì)給定）

,,,45179334.9,,60,,10

密封面必需比壓qM/Mpa,,,（對(duì)中等硬度橡膠）,,密封面間的摩擦因數(shù)?M（對(duì)于橡膠密封圈為0.8~1.0）,,閥桿與蝶板中心的偏心距h/mm（設(shè)計(jì)選定）

,,,2.612789059,,0.8,,11

閥桿軸承的摩擦力矩MC/N·mm,,,蝶板處于密封狀態(tài)時(shí),,重力加速度g,,管子截面積A/m2

,,,42390,,9.8,,0.36

,,,蝶板處于啟閉過程時(shí),,體積流量qv（m3/h）,,關(guān)閥時(shí)間t/s

,,,147.3837975,,20,,10

當(dāng)?shù)逄幱诿芊鉅顟B(tài)時(shí)，作用在閥桿軸承上的載荷FC為：,,,,,全開時(shí)介質(zhì)的流速V0（mm/s）,,

,,,2826000,,80,,

"當(dāng)?shù)逄幱趩㈤]過程時(shí)，F(xiàn)C=Fd,Fd為動(dòng)水作用力：",,,,,,,

,,,9825.586497,,,,

計(jì)算升壓在內(nèi)的最大靜水壓頭H/mm,,,,,軸承的摩擦系數(shù)?C,,蝶板開度為α角時(shí)的動(dòng)水力系數(shù)λα

,,,3157777.778,,0.001,,210

由于水擊作用在閥前產(chǎn)生的壓力升值Δp/MPa,,,,,蝶板開度為α角時(shí)的流阻系數(shù)ζα,,蝶板全開時(shí)的流阻系數(shù)ζ0

,,,22.22222222,,302,,0.044

密封填料的摩擦力矩MT/N·mm,,,,,系數(shù)Ψ查表3-15（按hT/bT）,,

,,,53550,,1.19,,

填料與閥桿的摩擦力FT/N,,,,,,,

,,,3570,,適用型號(hào)：,,

靜水力矩Mj/N·mm（當(dāng)閥桿垂直安裝時(shí)為0）,,,,,,,

,,,0,,計(jì)算者：,,

動(dòng)水力矩Md/N·mm,,,,,,,

,,,9670.80538,,日期：,,

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