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D360-40*5臥式多級(jí)離心泵，長(zhǎng)沙東方工業(yè)泵廠優(yōu)勢(shì)產(chǎn)品，十七年堅(jiān)持生產(chǎn)臥式多級(jí)離心泵，傾力奉獻(xiàn)！
流量：360立方米每小時(shí)（m3/h），揚(yáng)程：200米（m），進(jìn)出口徑均為200mm，電機(jī)功率：315KW-4極。
--------------------------多級(jí)泵效率計(jì)算公式及汽蝕余量、吸程概念
什么叫多級(jí)泵的效率？公式如何？
指多級(jí)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(dòng)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(jì)量單位表示字母？
泵在工作時(shí)液體在葉輪的進(jìn)口處因一定真空壓力下會(huì)產(chǎn)生汽體，汽化的氣泡在液體質(zhì)點(diǎn)的撞擊運(yùn)動(dòng)下，對(duì)葉輪等金屬表面產(chǎn)生剝蝕，從而破壞葉輪等金屬，此時(shí)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(guò)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*5多級(jí)離心泵性能參數(shù)：
|
參數(shù)
型號(hào) |
流量 Q |
揚(yáng)程 H |
轉(zhuǎn)速 n |
軸功率 Pa |
配帶電動(dòng)機(jī) |
效率 η |
必須汽 蝕余量 |
葉輪名 義直徑 |
||
|
功率 |
型號(hào) |
|||||||||
|
m3/h |
L/s |
m |
r/min |
kw |
kw |
% |
m |
mm |
||
|
D360-40×3
|
300 360 440 |
83.3 100 122.2 |
126 120 106.5 |
1480 |
133.7 147.2 165.8 |
185 |
Y315M1-4 (IP23) |
77 80 77 |
4.65 4.7 5.4 |
360 |
|
D360-40×4
|
300 360 440 |
83.3 100 122.2 |
168 160 142 |
1480 |
178.2 196.2 221.1 |
250 |
Y355M2-4
|
77 80 77 |
4.65 4.7 5.4 |
360 |
|
D360-40×5
|
300 360 440 |
83.3 100 122.2 |
210 200 177.5 |
1480 |
222.8 245.3 276.3 |
315 |
Y355L2-4 |
77 80 77 |
4.65 4.7 5.4 |
360 |
|
D360-40×6
|
300 360 440 |
83.3 100 122.2 |
252 240 213 |
1480 |
257.4 294.1 331.5 |
400 |
Y4002-4 (IP23/6KV) |
77 80 77 |
4.65 4.7 5.4 |
360 |
|
D360-40×7
|
300 360 440 |
83.3 100 122.2 |
294 280 248.5 |
1480 |
311.9 343.1 386.7 |
450 |
Y4003-4 (IP23/6KV) |
77 80 77 |
4.65 4.7 5.4 |
360 |
|
D360-40×8
|
300 360 440 |
83.3 100 122.2 |
336 320 284 |
1480 |
356.5 392.2 441.9 |
500 |
Y4004-4 (IP23/6KV) |
77 80 77 |
4.65 4.7 5.4 |
360 |
|
D360-40×9
|
300 360 440 |
83.3 100 122.2 |
378 360 319.5 |
1480 |
401.1 441.2 497.2 |
560 |
Y4005-4 (IP23/6KV) |
77 80 77 |
4.65 4.7 5.4 |
360 |
|
D360-40×10 |
300 360 440 |
83.3 100 122.2 |
420 400 355 |
1480 |
445.6 490.2 552.4 |
630 |
Y4501-4 (IP23/6KV) |
77 80 77 |
4.65 4.7 5.4 |
360 |
易損件：首級(jí)口環(huán)（首級(jí)密封環(huán)）、次級(jí)口環(huán)（次級(jí)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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