Mixed-Flow Pumps thiab axial-Flow Pumps yog nquag siv nyob rau hauv lub zog evaporators ntawm ntsev tov.
Qhov sib txawv ntawm ob thiab kev ceev faj txog kev xaiv yog raws li hauv qab no:
I. Qhov txawv ntawm qhov tsis sib xws ntawm ob:
A: Cov twj tso kua mis sib xyaw yog muaj nyob rau hauv nruab nrab - ntws thiab qis, nruab nrab, thiab siab lub taub hau series (tsawg lub taub hau 2 - 5.4 meters, nruab nrab taub hau 4 - 14 meters, siab taub hau 7 - 34 meters). Lub twj tso kua mis sib xyaw- ntws tawm kab rov tav thiab tso tawm tawm. Cov twj sib xyaw- ntws twj tso kua mis muaj kev tiv thaiv zoo heev - suction erosion kev ua tau zoo.
B: Lub twj tso kua mis axial ntws yog series rau siab txaus thiab lub taub hau qis (lub taub hau tsis tuaj yeem tshaj 4.5 meters). Lub twj tso kua mis yog pub los ntawm sab saum toj thiab tso tawm horizontally. Lub twj tso kua mis axial ntws yuav luag tsis muaj lub taub hau nqus.
2: Qhov sib txawv ntawm kev ua haujlwm ntawm ob:
A: Cov sib xyaw ua ke -flow twj tso kua mis qis- lub taub hau series yog haum rau qis- cov khoom siv evaporation tsis kam nrog lub taub hau qis xws li ib qho -cov cua sov chav thiab qis- txoj hauj lwm evaporation chambers (qhov twg cov evaporation chamber qis dua 10 meters thiab lub installation qhov siab ntawm lub evaporation ntaus ntawv), zoo li evaporation ntaus ntawv. ntau- cua sov chambers lossis ntau- hom cua sov chav. Qhov nruab nrab- lub taub hau series yog tsim rau cov hom tshiab ntawm cov evaporators xws li cov uas muaj ob -cov cua sov chav sib txuas hauv cov series lossis nrog ntau chav cua sov, nrog rau cov khoom siv evaporation yuam kev thiab cov khoom siv rov qab evaporation nrog cov viscosity siab thiab siab viscosity, thiab kuj rau cov khoom siv evaporation siab {viscos1} siab. Lub twj tso kua mis sib xyaw ua ke tuaj yeem siv rau ntau yam tsawg-kuj thiab siab-cov khoom siv evaporation tsis kam thiab cov khoom siv evaporation nrog cov viscosity siab thiab kev ua haujlwm siab vim nws txoj kev xaiv ntau lub taub hau. Tsis tas li ntawd, nws yog qhov tsim nyog rau kev ua haujlwm me me, qhov ntim qis qis, thiab qhov siab qis qis (qis dua 10 meters) ntawm cov khoom siv evaporation vim nws lub siab nqus lub taub hau thiab muaj peev xwm tiv taus lub tshuab nqus tsev. Lub siab- lub taub hau series feem ntau tsuas yog tsim rau thauj cov khoom ntim loj thiab cov xov xwm corrosive nrog qee cov khoom, thiab tsis haum rau cov khoom siv evaporation hauv lub tshuab nqus tsev.
B: Lub axial- ntws twj tso kua mis tsuas yog tsim nyog rau qis- cov evaporators tsis kam nrog lub taub hau qis hauv ib qho - cov cua sov chav thiab siab - txoj hauj lwm evaporation chambers (qhov twg cov evaporation chamber siab tshaj 10 meters thiab lub installation qhov siab ntawm lub evaporation ntaus ntawv yog siab). Lub axial-flow twj tso kua mis tsis haum rau ntau- hom cua sov chav los yog yuam kev ncig evaporation li nrog siab viscosity thiab siab circulating tsis kam, tsis rau rov qab evaporation cov cuab yeej vim nws qis suction lub taub hau thiab tsis muaj peev xwm los tiv thaiv lub tshuab nqus tsev. Nws yog qhov tsim nyog rau cov khoom siv evaporation nrog cov khoom ua haujlwm loj, cov khoom siv hluav taws xob siab, thiab kev teeb tsa siab siab (siab tshaj 10 meters) thiab kev ua haujlwm qis.
3: Qhov sib txawv ntawm kev siv cuab yeej ntawm ob:
A: Lub twj tso kua mis sib xyaw ua ke muaj kev tiv thaiv zoo heev - suction cavitation kev ua tau zoo. Nws muaj qee lub taub hau nqus thiab muaj peev xwm tiv taus lub tshuab nqus tsev. Nyob rau hauv lub tshuab nqus tsev siab, lub installation qhov siab ntawm lub cuab yeej yuav raug txo los ntawm tsawg kawg yog 4-5 meters piv rau axial-flow twj tso kua mis. Qhov no tuaj yeem txo tus nqi ntawm lub hauv paus steel platform thiab cov qauv ua vaj tse, txo qhov ntev ntawm kev sib txuas thiab inlet / qhov hluav taws xob kav rau lub twj tso kua mis hauv chav sib cais thiab lub rhaub, thiab txo tus nqi tag nrho ntawm cov khoom siv. Qhov no ua rau tus nqi qis dua thiab tseem txhim kho qhov yooj yim ntawm kev teeb tsa thiab kev tsim kho, thiab ua rau qhov tseem ceeb ntawm kev teeb tsa thiab kev tsim kho.
B: Lub axial - ntws twj tso kua mis yuav luag tsis muaj lub taub hau suction thiab muaj cov kev xav tau siab rau kev teeb tsa qhov siab ntawm lub cuab yeej. Vim nws qhov kev tsim khoom tsis yooj yim thiab siv cov khoom siv tsawg dua piv rau cov twj sib xyaw- cov twj tso kua mis, tus nqi tag nrho ntawm axial - ntws twj tso kua mis qis dua li ntawm cov twj sib xyaw - ntws twj. Nws yog qhov tsim nyog rau cov khoom siv nrog cov dej ntws loj thiab kev ua haujlwm loj.
4: Qhov zoo sib xws ntawm ob:
Cov yam ntxwv ntawm lub zog ruaj khov qhia tau tias cov twj sib xyaw- ntws twj tso kua mis muaj kev ua haujlwm siab dua li axial - ntws twj. Lub axial- ntws twj tso kua mis muaj lub taub hau qis. Qhov kawg sib piv lub zog sib txawv tsis tseem ceeb, thiab lub zog - txuag qhov sib txawv kuj tsis tseem ceeb. Lub tshuab foob yog txhua yam ntawm kev sib xyaw ua ke, uas yooj yim rau nruab, muaj lub neej ua haujlwm ntev, thiab kev ntseeg tau zoo. Lub twj tso kua mis lub cev tau txais kev txhawb nqa ntawm qhov chaw nruab nrab, thiab cov thermal kev sib raug zoo yog qhov zoo. Lub twj tso kua mis yog tuab, nrog zoo rigidity, thiab nws muaj peb -disc bearings. Cov kabmob vaj tse yog dej-tso kom txias txaus. Kev ua haujlwm ruaj khov dua thiab nws tsim nyog rau ib lub twj tso kua mis txuas ntxiv ua haujlwm. Cov txheej txheem kev teeb tsa tuaj yeem raug xaiv los ntawm ntau txoj kev xaiv, xws li kev sib txuas ncaj qha lub cev muaj zog, siv txoj siv sia, caij nplooj ntoos hlav- hom puag, thiab tshem tawm kev teeb tsa.
