D360-40*6，D360-40*6，D360-40*6

 
D360-40*6臥式多級離心泵，長沙東方工業(yè)泵廠優(yōu)勢產(chǎn)品，十七年堅持生產(chǎn)臥式多級離心泵，傾力奉獻(xiàn)！

流量：360立方米每小時（m3/h），揚(yáng)程：240米（m），進(jìn)出口徑均為200mm，電機(jī)功率：400KW-4極。

--------------------------多級泵效率計算公式及汽蝕余量、吸程概念
什么叫多級泵的效率？公式如何？
指多級泵的有效功率和軸功率之比。η=pe/p
泵的功率通常指輸入功率，即原動機(jī)傳到泵軸上的功率，故又稱軸功率，用p表示。
有效功率即：泵的揚(yáng)程和質(zhì)量流量及重力加速度的乘積。

pe=ρg qh (w) 或pe=γqh/1000 （kw）     ρ：泵輸送液體的密度（kg/m3）
γ：泵輸送液體的重度 γ=ρg （n/ m3）     g：重力加速度（m/s）
質(zhì)量流量 qm=ρq (t/h 或 kg/s)

什么叫汽蝕余量？什么叫吸程？各自計量單位表示字母？
泵在工作時液體在葉輪的進(jìn)口處因一定真空壓力下會產(chǎn)生汽體，汽化的氣泡在液體質(zhì)點的撞擊運動下，對葉輪等金屬表面產(chǎn)生剝蝕，從而破壞葉輪等金屬，此時真空壓力叫汽化壓力，汽蝕余量是指在泵吸入口處單位重量液體所具有的超過汽化壓力的富余能量。l單位用米標(biāo)注，用（npsh）r。吸程即為必需汽蝕余量δh：即泵允許吸液體的真空度，亦即泵允許的安裝高度，單位用米。
吸程=標(biāo)準(zhǔn)大氣壓（10.33米）-汽蝕余量-安全量（0.5米）

D360-40*6多級離心泵性能參數(shù)：

易損件：首級口環(huán)（首級密封環(huán)）、次級口環(huán)（次級密封環(huán)）、軸套、導(dǎo)葉套、平衡環(huán)、平衡盤、平衡套、填料、機(jī)械密封、葉輪。材質(zhì)：耐磨鑄鐵，鑄鋼，球鐵，不銹鋼等

保質(zhì)期：正常使用情況下，易損件保質(zhì)半年，整機(jī)保質(zhì)一年，配件供應(yīng)充足。

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