Pump Motors: Master Lawv Cov Kev Xav Tau Tshwj Xeeb Kom Tsis txhob xaiv qhov yuam kev

Pump motorsyog tsim los kom haum square-torque loads, xa high efficiency nyob rau hauv dav kev khiav hauj lwm tej yam kev mob, thiab feature zoo heev kev co kuj, cavitation kuj thiab siab tiv thaiv kev ua tau zoo. Lawv cov kev xav tau yog qhov txawv ntawm cov motors rau cov tshuab dav dav uas ua haujlwm nyob rau hauv qhov tsis tu ncua -torque lossis tas li- lub zog.

Cov twj tso kua mis centrifugal thiab sib xyaw- cov twj tso kua mis ua tau ntau dua 80% ntawm cov twj tso kua mis. Lawv ua raws lub xwmfab- tus yam ntxwv torque: torque yog proportional rau lub square ntawm rotational ceev, thiab lub hwj chim yog proportional rau lub voos xwmfab ntawm kev sib hloov ceev, uas coj lub zog ntau npaum li cas -txuag muaj peev xwm. Lawv qhov xav tau pib torque tsuas yog 0.3 mus rau 0.5 npaug ntawm qhov ntsuas torque. Hauv qhov sib piv, cov twj tso zis zoo xws li cov twj tso kua mis ua haujlwm tsis tu ncua - torque loads thiab xav tautwj motorskom tso zis torque tsis tu ncua. Ob pawg muaj cov kev xav tau ntawm kev ua haujlwm.

Hais txog kev pib thiab kev tswj ceev, cov twj centrifugal txais yuav lub teeb -load startup nrog ib tug pib torque tsis tsawg tshaj li 0.4 npaug ntawm tus nqi ntsuas. Rau qhov zoo ntawm cov twj tso kua mis thiab cov twj tso kua mis conveying siab -viscosity media, qhov pib torque yuav tsum ncav cuag tsis pub tsawg tshaj 1.2 npaug ntawm qhov ntsuas torque los tiv thaiv stalling. Lub cev muaj zog yuav tsum khiav zoo ntawm 80% ntawm qhov ntsuas hluav taws xob. Txij li thaum lub twj tso kua mis ntws thiab lub taub hau xav tau kev hloov pauv hloov pauv, qhov dav - qhov sib txawv ntawm qhov sib txawv zaus yog qhov yuav tsum tau ua. Tshwj xeeb kuj sib txawv zaus motors yuav zam overheating ntawm tsawg speeds. Tsis tas li ntawd, lub cev muaj zog ntsuas ceev yuav tsum ua kom haum rau lub twj tso kua mis qhov taw tes ua haujlwm zoo tshaj plaws; ib qho offset ntau dua 5% yuav ua rau muaj kev poob qis hauv kev ua haujlwm tag nrho.

Rau cov qauv kev ntseeg tau, lub coaxiality ntawm lub twj tso kua mis thiab lub cev muaj zog yuav tsum tau tswj nyob rau hauv 0.05 hli los tiv thaiv resonance. Qhov siab - zaus cuam tshuam los ntawm cavitation ntawm cov twj centrifugal yuav tsum muaj kev sib txuas ntxiv rau qhov kawg windings thiab rwb thaiv tsev chav F lossis siab dua. Lub twj tso kua mis submersible yuav tsum tau ntsuas IP68 rau kev tiv thaiv kev sib khi, thiab lub suab nrov ntawm cov twj tso kua mis yuav tsum tsis pub tshaj 85 dB.

Cov chav kawm tiv thaiv raug xaiv raws li kev khiav hauj lwm ib puag ncig: IP54 rau cov twj tso kua mis txheem, IP55 lossis IP56 rau cov chaw sab nraum zoov thiab tshuaj lom neeg, thiab IP68 rau cov twj submersible. Tag nrho cov windings txais yuav Class F rwb thaiv tsev. Cov motors siv nyob rau qhov siab siab xav tau lub zog derating lossis ua kom txias txias. Kev tiv thaiv -cov qauv tsim corrosion yog siv rau cov tshuaj ib puag ncig, thiab tau ntawv pov thawjtawg-cov pov thawj motorsyog qhov yuav tsum tau ua rau qhov chaw tawg thiab tawg.

Nyob rau hauv cov nqe lus ntawm lub zog efficiency, lub teb chaws cov qauv teev hais tias cov motors yuav tsum mus txog IE3 efficiency qib los yog siab dua. Lub efficiency ntawmtwj motorsyuav tsum nyob saum 85% nyob rau hauv loads xws li 40% mus rau 100%. Thaum tsav los ntawm qhov sib txawv zaus, qhov system fais fab tuag yuav tsum tsis pub tsawg tshaj 0.9 thiab tag nrho cov kev sib haum xeeb distortion (THDi) yuav tsum tsis pub tshaj 30%. Rau lub zog sib piv, lub zog ntawm lub cev muaj zog rau cov twj centrifugal yuav tsum yog 1.05 mus rau 1.1 npaug ntawm lub twj tso kua mis lub zog, thaum lub zog ntawm 1.2 mus rau 1.5 npaug yog xav tau rau cov twj tso kua mis zoo thiab siab - cov twj tso kua mis viscosity. Kev xaiv zaum kawg yuav tsum ua raws li cov yam ntxwv hydraulic thiab kev ua haujlwm tiag tiag ntawm lub twj tso kua mis.