SNH440R54U12.1W2三螺桿泵選型步驟,三螺桿泵選型列,要盡可能詳盡地了解泵的使用條件,除運(yùn)行參數(shù),如流量、壓力須要弄清楚之外,輸送的介質(zhì)的特性如介質(zhì)的腐蝕性,含氣量含固溶物的比率及固體顆粒的大小以及介質(zhì)的工作溫度、粘度、比重對泵內(nèi)過流元件的腐蝕性等和泵裝置的吸入條件,安裝條什均要了解。
SNH440R54U12.1W2三螺桿泵選型步驟
三螺桿泵選型步驟
三螺桿泵選型列,要盡可能詳盡地了解泵的使用條件,除運(yùn)行參數(shù),如流量、壓力須要弄清楚之外,輸送的介質(zhì)的特性如介質(zhì)的腐蝕性,含氣量含固溶物的比率及固體顆粒的大小以及介質(zhì)的工作溫度、粘度、比重對泵內(nèi)過流元件的腐蝕性等和泵裝置的吸入條件,安裝條什均要了解。
用戶.可以填寫泵數(shù)據(jù)表,由廠家負(fù)責(zé)選型,也可以根據(jù)樣木按以下步驟自行選型。
*,確定泵的轉(zhuǎn)速:(SM系列螺桿泵的極限轉(zhuǎn)速為≤3000rpm)
1.泵轉(zhuǎn)速的選擇以輸送介質(zhì)的粘度和泵的規(guī)格確定轉(zhuǎn)速范圍,一般輸送高粘度介質(zhì)時(shí),泵應(yīng)選低轉(zhuǎn)速;若粘度低,相應(yīng)選擇高轉(zhuǎn)速。
對于大規(guī)格的泵(主桿外徑?60mm以上)
介質(zhì)粘度γ>20° E 時(shí),轉(zhuǎn)速以970rpm或720rpm為宜。
若γ>80° E 如粘膠液,轉(zhuǎn)速可選n=200~500rpm
對于小規(guī)格的泵(主桿外徑? 60mm以卜):
γ>20° E 時(shí),n選1450rpm或970rpm.
γ>80° E 時(shí),n選300~600rpm
2.由于泵的轉(zhuǎn)速愈高摩擦功率愈高,泵的磨損越大,壽命越短,如果輸送介質(zhì)的潤滑性較差,或含有微量雜質(zhì),應(yīng)選較低轉(zhuǎn)速,使泵保持較長的使用壽命。n<1450rpm
第二,結(jié)構(gòu)形式的選擇
結(jié)構(gòu)的選擇可根據(jù)泵的運(yùn)行環(huán)境和安裝環(huán)境,選擇合適的安裝形式并遵循以下的原則:
1.輸送潤滑性油類,且濡度T<80℃時(shí),選擇內(nèi)置軸承結(jié)構(gòu)的泵。
2.輸送潤滑性較差,或溫度T>80℃時(shí),選擇外置軸承結(jié)構(gòu)的泵。
3.輸送流動(dòng)性差,粘度高的介質(zhì)或?qū)λ斔徒橘|(zhì)進(jìn)行加熱或保溫時(shí),選雙層加熱泵體結(jié)構(gòu)的泵。
4.輸送高溫介質(zhì)時(shí),應(yīng)選擇耐高溫的材料制成的泵或局部冷卻的泵。
5.關(guān)于泵的吸入能力可杳閱樣木。
第三,泵材料組合的選擇
第四,泵的吸上能力
通過降低轉(zhuǎn)速或加熱降低介質(zhì)粘度的方法,可達(dá)到高的吸上性能
第五,配套電機(jī)的選配
泵的型號選定后,根據(jù)樣木數(shù)據(jù),可查到泵的軸功率N,該軸功率再加上一定的功率儲(chǔ)備后,作為選配電機(jī)的依據(jù),一般電機(jī)功率Nm不小于泵軸功率N乘以功率儲(chǔ)備系數(shù)K所得的值即:Nm≥K·N . K值由下表查得。
┌─────┬───┐
│N(KW) │K │
├─────┼───┤
│N≤5 │1.25 │
├─────┼───┤
│5<N≤10 │1.2 │
├─────┼───┤
│10<N≤50 │1 .15 │
├─────┼───┤
│N>50 │1 .1 │
└─────┴───┘
第六,為了保證進(jìn)泵介質(zhì)的清潔性,要求泵進(jìn)進(jìn)口前配備過濾器,過濾精度為40~80目。
另外,選泵時(shí)還常由于樣本提供的泵性能參數(shù)均以表格形式或特定粘度、轉(zhuǎn)速下性能曲線的形式給出,所需泵的性能值,有時(shí)恰好不能直接讀出,這時(shí)可遵循如下原則,作粗略估算。若需比較準(zhǔn)確的數(shù)據(jù),則可向?qū)I(yè)人員咨詢。
1.三螺桿泵的流量,壓力在相同轉(zhuǎn)速、粘度時(shí)近似成直線關(guān)系,壓力越高,流量越小。
2.相同粘度、壓力下泵的流量與轉(zhuǎn)速近似成正比。
3.相同轉(zhuǎn)速、粘度時(shí),軸功率與壓力近似成正比。
4.相同粘度、壓力下,軸功率與轉(zhuǎn)速近似成正比。
粘度增大時(shí),流量和軸功率均增加,但由于其中關(guān)系比較復(fù)雜,必要時(shí),向?qū)I(yè)人員咨詢。
例:在常常溫下輸送γ=75cs潤滑油,要求:Q=11.5m3/h P=6.0MPa
根據(jù)以上參數(shù)查樣木選SMH280R43U12.1
其參數(shù)為: Q=12.5m3/h P=6.0MPa
n=1450rpm N=26.8KW
由泵的軸功率N選電機(jī)
查表得功率儲(chǔ)備系數(shù)K=1.15。
電機(jī)的功率Nm=K·N=1.15 X 26.8=30.82KW
由電機(jī)樣本查得:Y225S-4的功率為37KW
所以SMH280R43U12.1-Y225S-4符合要求。
SNH440R54U12.1W2三螺桿泵選型步驟
SNH440R54U12.1W2三螺桿泵選型步驟
SNH440R54U12.1W2三螺桿泵選型步驟
SNH440R40U8W2 | SNH440R46U8W2 | SNH440R52U8W2 | SNH440R54U8W2 | ||
SNF440R40U8W2 | SNF440R46U8W2 | SNF440R52U8W2 | SNF440R54U8W2 | ||
SNS440R40U8W2 | SNS440R46U8W2 | SNS440R52U8W2 | SNS440R54U8W2 | ||
SNH440R40U8W3 | SNH440R46U8W3 | SNH440R52U8W3 | SNH440R54U8W3 | ||
SNF440R40U8W3 | SNF440R46U8W3 | SNF440R52U8W3 | SNF440R54U8W3 | ||
SNS440R40U8W3 | SNS440R46U8W3 | SNS440R52U8W3 | SNS440R54U8W3 | ||
SNH440R40U8W21 | SNH440R46U8W21 | SNH440R52U8W21 | SNH440R54U8W21 | ||
SNF440R40U8W21 | SNF440R46U8W21 | SNF440R52U8W21 | SNF440R54U8W21 | ||
SNS440R40U8W21 | SNS440R46U8W21 | SNS440R52U8W21 | SNS440R54U8W21 | ||
SNH440R40U8W23 | SNH440R46U8W23 | SNH440R52U8W23 | SNH440R54U8W23 | ||
SNF440R40U8W23 | SNF440R46U8W23 | SNF440R52U8W23 | SNF440R54U8W23 | ||
SNS440R40U8W23 | SNS440R46U8W23 | SNS440R52U8W23 | SNS440R54U8W23 | ||
SNH440R40U12.1W2 | SNH440R46U12.1W2 | SNH440R52U12.1W2 | SNH440R54U12.1W2 | ||
SNF440R40U12.1W2 | SNF440R46U12.1W2 | SNF440R52U12.1W2 | SNF440R54U12.1W2 | ||
SNS440R40U12.1W2 | SNS440R46U12.1W2 | SNS440R52U12.1W2 | SNS440R54U12.1W2 | ||
SNH440R40U12.1W3 | SNH440R46U12.1W3 | SNH440R52U12.1W3 | SNH440R54U12.1W3 | ||
SNF440R40U12.1W3 | SNF440R46U12.1W3 | SNF440R52U12.1W3 | SNF440R54U12.1W3 | ||
SNS440R40U12.1W3 | SNS440R46U12.1W3 | SNS440R52U12.1W3 | SNS440R54U12.1W3 | ||
SNH440R40U12.1W21 | SNH440R46U12.1W21 | SNH440R52U12.1W21 | SNH440R54U12.1W21 | ||
SNF440R40U12.1W21 | SNF440R46U12.1W21 | SNF440R52U12.1W21 | SNF440R54U12.1W21 | ||
SNS440R40U12.1W21 | SNS440R46U12.1W21 | SNS440R52U12.1W21 | SNS440R54U12.1W21 | ||
SNH440R40U12.1W23 | SNH440R46U12.1W23 | SNH440R52U12.1W23 | SNH440R54U12.1W23 | ||
SNF440R40U12.1W23 | SNF440R46U12.1W23 | SNF440R52U12.1W23 | SNF440R54U12.1W23 | ||
SNS440R40U12.1W23 | SNS440R46U12.1W23 | SNS440R52U12.1W23 | SNS440R54U12.1W23 | ||
SNH440R40E6.7W2 | SNH440R46E6.7W2 | SNH440R52E6.7W2 | SNH440R54E6.7W2 | ||
SNF440R40E6.7W2 | SNF440R46E6.7W2 | SNF440R52E6.7W2 | SNF440R54E6.7W2 | ||
SNS440R40E6.7W2 | SNS440R46E6.7W2 | SNS440R52E6.7W2 | SNS440R54E6.7W2 | ||
SNH440R40E6.7W3 | SNH440R46E6.7W3 | SNH440R52E6.7W3 | SNH440R54E6.7W3 | ||
SNF440R40E6.7W3 | SNF440R46E6.7W3 | SNF440R52E6.7W3 | SNF440R54E6.7W3 | ||
SNS440R40E6.7W3 | SNS440R46E6.7W3 | SNS440R52E6.7W3 | SNS440R54E6.7W3 | ||
SNH440R40E6.7W21 | SNH440R46E6.7W21 | SNH440R52E6.7W21 | SNH440R54E6.7W21 | ||
SNF440R40E6.7W21 | SNF440R46E6.7W21 | SNF440R52E6.7W21 | SNF440R54E6.7W21 | ||
SNS440R40E6.7W21 | SNS440R46E6.7W21 | SNS440R52E6.7W21 | SNS440R54E6.7W21 | ||
SNH440R40E6.7W23 | SNH440R46E6.7W23 | SNH440R52E6.7W23 | SNH440R54E6.7W23 | ||
SNF440R40E6.7W23 | SNF440R46E6.7W23 | SNF440R52E6.7W23 | SNF440R54E6.7W23 | ||
SNS440R40E6.7W23 | SNS440R46E6.7W23 | SNS440R52E6.7W23 | SNS440R54E6.7W23 | ||
TRSNH440-36 | TRSNH440-40 | TRSNH440-42 | TRSNH440-46 | TRSNH440-51 | TRSNH440-54 |
TRSNF440-36 | TRSNF440-40 | TRSNF440-42 | TRSNF440-46 | TRSNF440-51 | TRSNF440-54 |
TRSNS440-36 | TRSNS440-40 | TRSNS440-42 | TRSNS440-46 | TRSNS440-51 | TRSNS440-54 |
TRSND440-36 | TRSND440-40 | TRSND440-42 | TRSND440-46 | TRSND440-51 | TRSND440-54 |
TRSNK440-36 | TRSNK440-40 | TRSNK440-42 | TRSNK440-46 | TRSNK440-51 | TRSNK440-54 |
HTSNH440-36 | HTSNH440-40 | HTSNH440-42 | HTSNH440-46 | HTSNH440-51 | HTSNH440-54 |
HTSNF440-36 | HTSNF440-40 | HTSNF440-42 | HTSNF440-46 | HTSNF440-51 | HTSNF440-54 |
HTSNS440-36 | HTSNS440-40 | HTSNS440-42 | HTSNS440-46 | HTSNS440-51 | HTSNS440-54 |
HTSND440-36 | HTSND440-40 | HTSND440-42 | HTSND440-46 | HTSND440-51 | HTSND440-54 |
HTSNK440-36 | HTSNK440-40 | HTSNK440-42 | HTSNK440-46 | HTSNK440-51 | HTSNK440-54 |
HSNH440-36Z | HSNH440-40Z | HSNH440-42Z | HSNH440-46Z | HSNH440-51Z | HSNH440-54Z |
HSNF440-36Z | HSNF440-40Z | HSNF440-42Z | HSNF440-46Z | HSNF440-51Z | HSNF440-54Z |
HSNS440-36Z | HSNS440-40Z | HSNS440-42Z | HSNS440-46Z | HSNS440-51Z | HSNS440-54Z |
HSNH440-36NZ | HSNH440-40NZ | HSNH440-42NZ | HSNH440-46NZ | HSNH440-51NZ | HSNH440-54NZ |
HSNF440-36NZ | HSNF440-40NZ | HSNF440-42NZ | HSNF440-46NZ | HSNF440-51NZ | HSNF440-54NZ |
HSNS440-36NZ | HSNS440-40NZ | HSNS440-42NZ | HSNS440-46NZ | HSNS440-51NZ | HSNS440-54NZ |
HSNH440-36W1Z | HSNH440-40W1Z | HSNH440-42W1Z | HSNH440-46W1Z | HSNH440-51W1Z | HSNH440-54W1Z |
HSNF440-36W1Z | HSNF440-40W1Z | HSNF440-42W1Z | HSNF440-46W1Z | HSNF440-51W1Z | HSNF440-54W1Z |
HSNS440-36W1Z | HSNS440-40W1Z | HSNS440-42W1Z | HSNS440-46W1Z | HSNS440-51W1Z | HSNS440-54W1Z |
HSNH440-36W1 | HSNH440-40W1 | HSNH440-42W1 | HSNH440-46W1 | HSNH440-51W1 | HSNH440-54W1 |
HSNF440-36W1 | HSNF440-40W1 | HSNF440-42W1 | HSNF440-46W1 | HSNF440-51W1 | HSNF440-54W1 |
HSNS440-36W1 | HSNS440-40W1 | HSNS440-42W1 | HSNS440-46W1 | HSNS440-51W1 | HSNS440-54W1 |
HSNH440-36N | HSNH440-40N | HSNH440-42N | HSNH440-46N | HSNH440-51N | HSNH440-54N |
HSNF440-36N | HSNF440-40N | HSNF440-42N | HSNF440-46N | HSNF440-51N | HSNF440-54N |
HSNS440-36N | HSNS440-40N | HSNS440-42N | HSNS440-46N | HSNS440-51N | HSNS440-54N |
HSNH440-36 | HSNH440-40 | HSNH440-42 | HSNH440-46 | HSNH440-51 | HSNH440-54 |
HSNF440-36 | HSNF440-40 | HSNF440-42 | HSNF440-46 | HSNF440-51 | HSNF440-54 |
HSNS440-36 | HSNS440-40 | HSNS440-42 | HSNS440-46 | HSNS440-51 | HSNS440-54 |
HSND440-36W1 | HSND440-40W1 | HSND440-42W1 | HSND440-46W1 | HSND440-51W1 | HSND440-54W1 |
HSND440-36N | HSND440-40N | HSND440-42N | HSND440-46N | HSND440-51N | HSND440-54N |
HSND440-36 | HSND440-40 | HSND440-42 | HSND440-46 | HSND440-51 | HSND440-54 |
HSNK440-36W1 | HSNK440-40W1 | HSNK440-42W1 | HSNK440-46W1 | HSNK440-51W1 | HSNK440-54W1 |
HSNK440-36N | HSNK440-40N | HSNK440-42N | HSNK440-46N | HSNK440-51N | HSNK440-54N |
HSNK440-36 | HSNK440-40 | HSNK440-42 | HSNK440-46 | HSNK440-51 | HSNK440-54 |
HSNH440-35A | HSNH440-39A | HSNH440-41A | HSNH440-45A | HSNH440-50A | HSNH440-53A |
HSNH440-36ZA | HSNH440-40ZA | HSNH440-42ZA | HSNH440-46ZA | HSNH440-51ZA | HSNH440-54ZA |