tiv thaiv qhov poob ntawm slurry twj tso kua mis

Volume poob thiab tiv thaiv qhov poob ntawm slurry twj tso kua mis

Volume poob centrifugal Tuam Tshoj slurry twj tso kua mis foob lub nplhaib xau poob, poob ntawm qhov sib npaug ntawm cov tsev kawm ntawv thiab qib ntawm cov dej xau losses.

Ib lub nplhaib foob xau poob

Nyob rau hauv lub impeller inlet, lub nplhaib sealing nyob rau hauv Tuam Tshoj slurry twj tso kua mis ua hauj lwm, vim hais tias lub sealing nplhaib ntawm ob sab muaj ib tug siab sib txawv, ib sab ntawm lub impeller qhov hluav taws xob siab yog kwv yees li ib sab ntawm lub impeller inlet siab, yog li yuav muaj ib txwm muaj. ib feem ntawm cov kua los ntawm lub impeller qhov hluav taws xob mus rau impeller inlet to.Qhov no ntawm cov kua tau txais nyob rau hauv lub zog ntawm lub impeller, tab sis cov kua tsis xa, yog li txo tus nqi ntawm cov dej Suav slurry twj tso kua mis.Tag nrho cov zog siv los kov yeej cov dej ntws ntawm cov kua nplaum nplhaib ntawm qhov tsis kam.
Pom tseeb, qhov loj dua lub nplhaib nplhaib txoj kab uas hla Dw, qhov tsis zoo ntawm ob sab ntawm qhov sib txawv ntawm qhov sib txawv, qhov ntau dua qhov dej ntws.Rau stereotypes Tuam Tshoj slurry twj tso kua mis, nyob rau hauv thiaj li yuav txo tus nqi ntawm cov to los txhim kho efficiency ntawm lub teb chaws slurry twj tso kua mis yuav tsum tau tso cai nyob rau hauv cov ntaub ntawv ntawm lub sealing nplhaib sib txawv nqaim.Feem ntau approximated tag nrho clearance foob nplhaib txoj kab uas hla 0.002, raws li Dw = 200 hli, tag nrho clearance ntawm 0.40 hli.Thaum sib sau ua ke, lub nplhaib foob eccentrically tsis loj dhau, txwv tsis pub, cov dej xau yuav nce ntxiv.Lwm qhov kev ntsuas tseem ceeb uas siv los ua kom muaj kev tiv thaiv ntawm lub nplhaib foob rau kev txo qis ntawm cov xau, nce qhov kev tiv thaiv ntawm lub nplhaib foob yog tsim los ntawm kev tshawb nrhiav, zigzag, thiab lwm yam. Nws kuj ua rau qhov ntev ntawm lub nplhaib foob, nce kev tiv thaiv raws txoj kev.
Cov dej ntws tawm ntawm lub nplhaib foob, thiab qee zaum yuav ua rau muaj kev cuam tshuam ntawm lub impeller inlet, yog li tus tsim yuav tsum tsim nyog tsim lub nplhaib foob.

Thib ob, qhov sib npaug mechanism xau poob

Nyob rau hauv ntau lub centrifugal Tuam Tshoj slurry twj tso kua mis, axial thrust balancing feature cov koom haum: xws li ntsuas qhov, sib npaug tswj, tshuav disc.Txij li thaum muaj ob sab los sib npaug ntawm qhov sib txawv ntawm qhov sib txawv, thiab yog li ib feem ntawm cov kua xau los ntawm thaj av siab mus rau thaj tsam qis.Kwv yees li 5% kom txo tau lub qhov to yuav sib npaug qhov ua tau zoo ntawm Tuam Tshoj slurry twj tso kua mis.Nyob rau hauv qhov sib npaug disc cov tsev kawm ntawv, tso nyiaj rau 3% ntawm kev ua haujlwm ntws, tab sis qee qhov ntawm cov twj siv hluav taws xob hauv Suav teb muaj ntau dua qhov no;Txhawm rau kom txo cov dej xau tuaj yeem txo qis qhov sib npaug disc txoj kab uas hla D yam tsis muaj kev cuam tshuam rau qhov teeb meem counterweight '.

Thib peb, lub interstage to losses

Nyob rau hauv ntau theem volute Tuam Tshoj slurry twj tso kua mis, theem sib nrug ntawm ob sab ntawm lub siab phaj ranges, yog li muaj to losses, raws li kev npaj ntawm cov koom haum sib txawv, theem siab ntawm ob sab ntawm spacer phaj yuav yog thawj, Secondary los yog tertiary, ntau theem sib txawv, ces qhov loj heev leakage ntawm theem muab faib, yog li ntawm no yog dav siv ntawm stepped-theem foob.

Tsis tas li ntawd, nyob rau hauv multi-theem Tuam Tshoj slurry twj ntu ntu, muaj kev sib cuam tshuam theem.Tab sis qhov no yog leakage ntawm qib uas tau hais dhau los yog qhov sib txawv, vim hais tias qhov no ntawm cov kua tsis xau los ntawm lub impeller, nws tsis yog rau lub ntim poob.Ntawm no, theem siab nyob ib ncig ntawm lub phaj muab faib, pressurized los ntawm cov nyhuv diffusion ntawm lub vanes ntawm lub impeller-sab feem thiab qhov nqus qhov sib txawv (sib npaug rau lub centrifugal impeller) tshwm sim.Nyob rau hauv lub luag hauj lwm ntawm qhov sib txawv siab, to ntawm cov kua theem ib ntus raws lub rooj tsavxwm ua ntej nkag mus rau hauv lub impeller gap backlash, thiab los ntawm cov lus qhia vanes, ABM nplooj (inhalation qhia vanes) thiab rov qab mus rau hauv qhov sib txawv ntawm cov theem, rov ua cov txheej txheem.Txawm hais tias inter-segment multi-theem Tuam Tshoj slurry twj tso kua mis theem tsis yog lub ntim poob, tab sis nws yog li ntawd puag ncig ntws mus rau Tuam Tshoj slurry twj tso kua mis zog noj.Tsis tas li ntawd, ib feem ntawm cov kua los ntawm cov lus qhia vanes, lub caj pas yuav ua rau qhov kev sib tshuam zoo txo ​​qis (piv txwv li, cov kua xau yuav siv sij hawm ib feem ntawm qhov hla ntu), nws yuav ua rau kom tus nqi ntws ntawm no, ua rau kev poob siab ntxiv. .Raws li "centrifugal Tuam Tshoj slurry twj tsim lub hauv paus," ib phau ntawv hais txog: ntau theem Tuam Tshoj slurry twj tso kua mis, ntawm tus nqi ntws ntawm 20 l / s, qhov sib txawv ntawm qib qis los ntawm 0.75 hli mus rau 0.25 hli, interstage to kom muaj nuj nqis q txo 0.7 litres / sec.vim qhov txo qis, qhov ntws dhau los ntawm cov vanes raug txo, txo qhov ntws ntawm lub caj pas, txo cov dej poob hauv cov vanes, thiab vim q txo cov txheeb ze ceev ntawm lub impeller cov kua tawm hauv cov lus qhia hauv. sab txo, yog li txo qhov kev sib txhuam poob ntawm lub impeller disc, yog li Tuam Tshoj slurry twj efficiency yog zoo dua li ntawm 5%.