1. Hom thiab yam ntxwv yooj yim.
Lub nplhaib dej twj tso kua mis tuaj yeem muab faib ua hom hauv qab no raws li cov qauv sib txawv.
■ Ib leeg-theem ib leeg-ua yeeb yam twj tso kua mis: ib-theem txhais tau hais tias tsuas muaj ib lub impeller, thiab ib leeg-acting txhais tau hais tias lub impeller tig ib zaug ib lub lim tiam, thiab nqus thiab tso pa tawm ib zaug ib zaug.Lub tshuab nqus tsev qhov kawg ntawm lub twj tso kua mis no siab dua, tab sis cov twj tso kua mis ceev thiab kev ua haujlwm qis dua.
■ Ib-theem-theem ob-ua yeeb yam dej nplhaib twj tso kua mis: ib-theem txhais tau hais tias tsuas yog ib lub impeller, ob-ua yeeb yam txhais tau tias txhua lub limtiam lub impeller tig, nqus thiab tso pa yog ua ob zaug.Nyob rau hauv tib lub twj tso kua mis ceev, ob-ua yeeb yam dej nplhaib twj tso kua mis tshaj ib leeg-acting dej nplhaib twj tso kua mis zoo heev txo qhov loj thiab qhov hnyav.Raws li lub chaw ua hauj lwm yog symmetrically faib rau ob sab ntawm lub twj tso kua mis hub, lub load ua hauj lwm ntawm lub rotor yog zoo dua.Lub twj tso kua mis ceev ntawm hom twj tso kua mis no siab dua thiab kev ua haujlwm siab dua, tab sis qhov kawg lub tshuab nqus tsev yog qis dua.
■ Ob-theem dej ntiv nplhaib twj tso kua mis: Feem ntau ob-theem dej ntiv nplhaib twj tso kua mis yog cov twj tso kua mis ib zaug.Nyob rau hauv qhov tseeb, nws yog ob theem ib leeg-ua yeeb yam dej nplhaib twj tso kua mis impellers sib koom ib qho kev sib txuas mandrel.Nws lub ntsiab tseem ceeb yog tias nws tseem muaj lub twj tso kua mis loj ntawm lub tshuab nqus tsev siab thiab ua haujlwm ruaj khov.
■Atmospheric dej nplhaib twj tso kua mis: Lub atmospheric dej nplhaib twj tso kua mis yog ib txheej ntawm atmospheric ejectors nyob rau hauv series nrog lub nplhaib dej twj tso kua mis.Lub nplhaib dej twj tso kua mis tau txuas nrog hauv cov twj tso kua mis nrog lub taub hau dej nplhaib kom nce cov twj tso kua mis kawg.
Lub nplhaib dej twj tso kua mis muaj qhov zoo hauv qab no piv rau lwm hom tshuab nqus tsev twj.
▪ Cov qauv yooj yim, tsis tshua muaj kev tsim khoom raug cai, yooj yim rau kev ua haujlwm.Kev ua haujlwm yooj yim thiab kev saib xyuas yooj yim.
▪ Cov qauv tsim, lub twj tso kua mis feem ntau txuas ncaj qha rau lub cev muaj zog thiab muaj lub siab rpm.Nrog cov qauv me me, qhov loj dua ntim tuaj yeem tau txais.
▪ Tsis muaj hlau txhuam qhov chaw hauv lub twj tso kua mis, tsis tas yuav tsum muaj lubrication ntawm lub twj tso kua mis.Kev sib khi ntawm qhov sib hloov thiab qhov chaw ruaj khov tuaj yeem ua ncaj qha los ntawm lub foob dej.
▪ Qhov kub hloov pauv ntawm cov roj compressed hauv lub twj tso kua mis yog qhov tsawg heev thiab tuaj yeem suav tias yog isothermal compression, yog li cov roj hluav taws xob thiab cov hluav taws xob tawg tuaj yeem nqus tau.
▪ Qhov tsis muaj qhov tso pa tawm thiab qhov chaw sib txhuam ua rau lub twj tso kua mis tshem tawm cov plua plav, cov pa roj condensable thiab cov roj-dej sib tov.
2 Disadvantages ntawm lub nplhaib dej twj tso kua mis.
▪ Tsawg efficiency, feem ntau nyob ib ncig ntawm 30%, zoo dua mus txog 50%.
▪ Lub tshuab nqus tsev qis.Qhov no tsis yog tsuas yog vim muaj kev txwv ntawm cov qauv, tab sis tseem ceeb tshaj, los ntawm kev ua haujlwm ntawm cov kua dej saturation vapor siab.
Feem ntau, cov twj tso kua dej nplhaib tau siv dav vim tias lawv qhov zoo tshaj plaws xws li isothermal compression thiab kev siv dej ua cov kua dej sib khi, muaj peev xwm nqus tau cov nplaim hluav taws, tawg thiab corrosive gases, thiab tseem muaj peev xwm tso tawm cov pa roj uas muaj plua plav thiab ya raws.
3 Daim ntawv thov ntawm lub nplhaib dej lub tshuab nqus tsev twj
Kev siv hluav taws xob hauv kev lag luam: kev khiav tawm ntawm condenser, lub tshuab nqus tsev nqus, flue gas desulphurisation, ya tshauv thauj, turbine foob tube tso, lub tshuab nqus tsev pa, tso pa tawm ntawm geothermal gas.
Kev siv hauv kev lag luam petrochemical: roj rov qab, roj rov qab, roj boosting, txhim kho cov roj rov qab, roj sau, roj crude stabilization, roj crude nqus distillation, tso compression, vapor rov qab / roj boosting, pom / siv quav ciab tshem tawm, tail gas rov qab, polyester ntau lawm, PVC ntau lawm, ntim, circulating gas compression, sib txawv siab adsorption (PSA), ntau lawm, compression ntawm flammable thiab explosive gases xws li acetylene thiab hydrogen, crude roj lub tshuab nqus tsev nyob rau sab saum toj ntawm yees hauv txo siab distillation, nqus crystallisation thiab ziab. , lub tshuab nqus tsev pom, lub tshuab nqus tsev conveying ntawm ntau yam ntaub ntawv.
Kev siv hauv kev lag luam: ziab (phaj, teb, tumbling, conical thiab khov dryers), reproduction / reactor drying, distillation, degassing, crystallisation / vaporisation, refilling thiab / los yog cov ntaub ntawv hloov.
Daim ntaub ntawv hauv cov ntaub so ntswg thiab cov ntawv tsim tawm: cov dej cawv dub evaporation, coarse pulp washers, txiv qaub slurry thiab lim, sediment lim, nqus dewaterers, raw khoom thiab dej dawb degassing tshuab, Tshuag txias lub thawv compressors, suction thawv, couch yob, suction hloov yob thiab hloov rolls, lub tshuab nqus tsev presses, wool fabric suction boxes, anti-blow boxes.
Kev siv hauv kev lag luam yas: extruder de-aeration, sizing rooj (profiling), EPS foaming, ziab, pneumatic conveying units, vinyl chloride gas extraction thiab compression.
Kev siv hauv kev lag luam apparatus: steam sterilization, ua pa apparatus, pa txaj, tiv thaiv khaub ncaws, kho hniav twj tso kua mis, central lub tshuab nqus tsev vacuum.
Daim ntaub ntawv hauv kev lag luam ib puag ncig: kev kho dej khib nyiab, biogas compression, nqus dej ntim, pov tseg dej huv / qhib sludge tank oxidation, ntses pas dej ua pa, khib nyiab tiam roj (biogas), biogas rov qab (biogas), khib nyiab kho tshuab.
Kev siv hauv kev lag luam zaub mov thiab dej haus: salmon tu tshuab, dej ntxhia degassing, zaub xam lav roj thiab roj deodorisation, tshuaj yej thiab txuj lom kom tsis muaj menyuam, hnyuv ntxwm thiab nqaij npua, ntub dej ntawm cov khoom luam yeeb, lub tshuab nqus tsev vacuum.
Cov ntawv thov hauv kev lag luam ntim khoom: ua kom lub hnab ntim khoom ntim, nqa lub hnab qhib los ntawm kev khiav tawm, thauj cov khoom ntim thiab cov khoom, txuas cov ntawv thiab ntim cov khoom nrog cov kua nplaum, nqa cov thawv ntawv los ntawm kev siv lub tshuab nqus tsev thiab sib sau ua ke, lub tshuab nqus tsev ntim thiab qhov cua. Ntim (MAP), PET thawv ntim khoom, ziab ntawm cov yas pellets, xa cov yas pellets, de-aeration ntawm extruders, dav hlau molding De-gassing thiab kev kho mob ntawm kev txhaj tshuaj molded qhov chaw, ziab ntawm kev txhaj tshuaj molded qhov chaw, tshuab moulding ntawm lub raj mis, kev kho ntshav plasma los teeb lub teeb meem, pneumatic conveying ntawm fwj, filling thiab filling, labelling, ntim thiab molding, recycling.
Kev siv hauv kev lag luam ntoo: tuav thiab tuav, ziab ntoo, khaws cia ntoo, impregnation ntawm cav.
Kev siv hauv kev lag luam maritime: condenser tso tawm, lub tshuab nqus tsev twj tso kua mis, marine low pressure air compressors, turbine seal pipe exhaust.
Daim ntawv thov hauv chaw tuav: ziab hauv pem teb, tiv thaiv corrosion ntawm cov kab dej, nruab nrab lub tshuab nqus tsev vacuum.
Kev siv hauv kev lag luam metallurgical: steel de-aeration.
Kev siv hauv kev lag luam qab zib: kev npaj ntawm CO2, pom cov av, kev siv hauv evaporators thiab lub tshuab nqus tsev nqus.
4 Cov ntsiab lus tseem ceeb rau kev xaiv
I. Kev txiav txim siab ntawm hom dej nplhaib lub tshuab nqus tsev twj tso kua mis
Hom dej nplhaib lub tshuab nqus tsev twj tso kua mis yog txiav txim siab los ntawm qhov nruab nrab ntawm lub tshuab nqus tsev, qhov xav tau roj ntim, lub tshuab nqus tsev kawm ntawv lossis lub siab tso tawm.
II.Qhov thib ob, lub nplhaib dej lub tshuab nqus tsev twj tso kua mis yuav tsum tau them sai sai rau ob lub ntsiab lus tom qab ua haujlwm li qub.
1, Raws li qhov ua tau, lub tshuab nqus tsev ntawm lub tshuab nqus tsev twj tso kua mis xaiv yuav tsum nyob rau hauv qhov chaw ua haujlwm siab, uas yog, ua haujlwm hauv cheeb tsam ntawm lub tshuab nqus tsev tseem ceeb lossis qhov tseem ceeb yuav tsum tau tso siab, thiaj li ua kom ntseeg tau. tias lub tshuab nqus tsev twj tso kua mis tuaj yeem ua haujlwm ib txwm ua raws li qhov xav tau thiab cov kev xav tau.Kev ua haujlwm ze ntawm lub tshuab nqus tsev siab tshaj plaws lossis qhov siab tshaj plaws ntawm lub tshuab nqus tsev yuav tsum zam.
Kev khiav hauj lwm hauv cheeb tsam no tsis yog tsuas yog tsis tshua muaj txiaj ntsig, tab sis kuj tsis ruaj khov thiab muaj kev vibration thiab suab nrov.Rau lub tshuab nqus tsev twj nrog lub tshuab nqus tsev siab, kev khiav hauj lwm hauv cheeb tsam no, cavitation feem ntau tshwm sim, uas yog tshwm sim los ntawm lub suab nrov thiab kev co hauv lub tshuab nqus tsev twj.Cov cavitation ntau dhau tuaj yeem ua rau muaj kev puas tsuaj rau lub twj tso kua mis lub cev, impeller thiab lwm yam khoom, kom lub tshuab nqus tsev twj tsis ua haujlwm zoo.
Nws tuaj yeem pom tau tias thaum lub tshuab nqus tsev lossis roj qhov xav tau los ntawm lub tshuab nqus tsev twj tso kua mis tsis siab, qhov tseem ceeb tuaj yeem muab rau lub twj tso kua mis ib-theem.Yog hais tias qhov yuav tsum tau ntawm lub tshuab nqus tsev kawm ntawv los yog roj siab siab, ib-theem twj tso kua mis feem ntau tsis tuaj yeem ua tau raws li nws, los yog, qhov yuav tsum tau ntawm lub twj tso kua mis tseem muaj roj ntim loj nyob rau hauv cov ntaub ntawv ntawm lub tshuab nqus tsev kawm ntawv siab dua, uas yog, qhov yuav tsum tau ntawm kev ua tau zoo nkhaus. yog flatter nyob rau hauv lub tshuab nqus tsev degree siab dua, ob-theem twj tso kua mis tuaj yeem xaiv.Yog tias qhov xav tau lub tshuab nqus tsev siab tshaj -710mmHg, Cov hauv paus dej lub nplhaib nqus tsev tuaj yeem siv los ua lub tshuab nqus tsev twj.
2 、 Ua kom raug xaiv lub tshuab nqus tsev twj tso kua mis raws li qhov yuav tsum tau siv lub peev xwm ntawm lub cev
Yog tias xaiv lub tshuab nqus tsev twj tso kua mis lossis lub tshuab nqus tsev vacuum, tus qauv tsim nyog yuav tsum tau xaiv raws li qhov yuav tsum tau muaj peev xwm ntawm lub tshuab nqus tsev.
Cov yam ntxwv ntawm ntau hom dej nplhaib lub tshuab nqus tsev twj yog raws li nram no.
Post lub sij hawm: Aug-18-2022