I-Mechanical seal yaziwa nangokuthi uphawu lobuso bokuphela, olunobuso obubili obuhambisana ne-eksisi yokuzungeza, ubuso bokuphela ngaphansi kwesenzo sokucindezela koketshezi kanye nesinxephezelo samandla angaphandle wemishini, kuye ngokuhlangana kophawu olusizayo kanye omunye umkhawulo ukugcina kufanelekile, futhi isilayidi esihlobene, ukuze kuvinjelwe ukuvuza koketshezi. I-Credo Pump ifingqa izimbangela ezivamile zokuvuza ze-mechanical seal yepompo yamanzi:

Isenzakalo esivamile sokuvuza

Ingxenye yokuvuza kwe-mechanical seal yenza ngaphezu kuka-50% wawo wonke amaphampu okulungisa. Ikhwalithi yokusebenza ye-mechanical seal ithinta ngokuqondile ukusebenza okuvamile kwepompo. Ifinyezwa futhi ihlaziywe ngale ndlela elandelayo:

1. Ukuvuza ngezikhathi ezithile

Umfutho wesiteshi se-pump rotor shaft, uphawu olusizayo kanye nokuphazamiseka okukhulu kwe-shaft, iringi enyakazayo ayikwazi ukuhamba ngokuguquguqukayo ku-shaft, lapho iphampu iphendulwa, ukuguga kwendandatho eguquguqukayo nemile, akukho ukususwa kwesinxephezelo.

Izinyathelo eziphikisanayo: Ekuhlanganisweni kwesigxivizo somshini, umfutho we-shaft we-shaft kufanele ube ngaphansi kuka-0.1mm, futhi ukuphazamiseka phakathi kophawu olusizayo kanye ne-shaft kufanele kube okulinganiselwe. Ngenkathi kuqinisekiswa uphawu lwe-radial, indandatho egudlukayo inganyakaziswa kalula ku-shaft ngemva kokuhlanganiswa (indandatho egudlukayo ingabhampa ibuyiselwe entwasahlobo ngokukhululekile).

2. Amafutha okugcoba anganele endaweni evalekayo kuzodala ukungqubuzana okomile noma ukudweba ubuso bokugcina uphawu.

Izinyathelo Zokulwa: Ubude bendawo kawoyela wokugcoba ekamelweni likawoyela kufanele bube phezulu kunobuso obuvalwayo bezindandatho ezihambayo nezimile.

3. Ukudlidliza kwe-rotor ngezikhathi ezithile. Isizathu siwukuthi i-stator kanye nesembozo esiphezulu nesiphansi asilinganisi i-impeller ne-spindle, i-cavitation noma ukuthwala umonakalo (ukugqoka), lesi simo sizofinyeza impilo yokuvala nokuvuza.

Izinyathelo Zokulwa: Izinkinga ezingenhla zingalungiswa ngokuvumelana nezindinganiso zokunakekela.

Ukuvuza ngenxa yengcindezi

1. Ukuvuza kophawu lwemishini okubangelwa ukucindezela okuphezulu kanye namagagasi okucindezela ngenxa yokucindezela okukhulu okukhethekile kwentwasahlobo kanye nengqikithi yedizayini yengcindezi ethize kanye nokucindezela egumbini lokuvala elingaphezu kuka-3MPa, kuzokwenza ingcindezi ethile ekugcineni kokuvala ibe mkhulu kakhulu, okwenza kube nzima. ukuze kwakheke ifilimu ewuketshezi, ukuguga okungathí sina ebusweni bokuphela kokuvala, ukwanda kwe-calorific futhi kubangele ukuwohloka kokushisa kwendawo yokuvala.

Izinyathelo zokuphikisa: kumshini womshini wokuhlanganisa, ukucindezelwa kwentwasahlobo kufanele kwenziwe ngokuhambisana nezinhlinzeko, ungavumeli into enkulu kakhulu noma encane kakhulu, izimo zokucindezela okuphezulu ngaphansi kophawu lwemishini kufanele zithathe izinyathelo. Ukuze wenze amandla obuso bokugcina abe nengqondo, ngangokunokwenzeka ukunciphisa ukuguqulwa, ungasebenzisa i-alloy eqinile, izitsha zobumba nezinye izinto ezinamandla okucindezelayo, futhi uqinise izinyathelo zokugcoba zokupholisa, khetha imodi yokudlulisela, njengokhiye, iphini, njll.

2. Ukuvuza kwe-vacuum futha komshini wophawu lokuvuza okubangelwa ukusebenza ohlelweni lokuqala, lokuma, ngenxa yokuvaleka kwephampu yokungena, indawo yokumpompa equkethe igesi, kungenzeka kubangele umgodi wophawu olubi, umgodi wokuvala uma ingcindezi engemihle, ukungqubuzana okomile. kubangela izimpawu, uhlobo olwakhelwe ngaphakathi uphawu lwemishini luzokhiqiza (amanzi) wento evuzayo, i-vacuum seal kanye nomehluko we-positive pressure seal umehluko wokuqondisa wento, futhi ukuguquguquka kophawu lwemishini kunendlela ethile.

I-Countermeasure: sebenzisa uphawu lwemishini yobuso obukabili, kuyasiza ukuthuthukisa isimo sokuthambisa nokusebenza kokuvala.

Ukuvuza okubangelwa i-medium

1. Iningi le-submersible futha mechanical seal ehlakazwayo, indandatho emile kanye nezinsimbi eziyinsiza ezihambayo aziyi-inelastic, ezinye zibolile, okuholela ekuvuzeni okuningi kwesigxivizo somshini ngisho nomkhuba wokugaya i-shaft. Ngenxa yezinga lokushisa eliphezulu, i-asidi ebuthakathaka endle, isisekelo esibuthakathaka esiyingini emile kanye nokugqwala kwendandatho yenjoloba enyakazayo, okuholela ekuvuzekeni komshini kukhulu kakhulu, okuguquguqukayo futhi okumile kwerubha okuvalela uphawu ku-nitrile -- 40, ukumelana nokushisa okuphezulu, i-asidi. -iyakwazi ukumelana ne-alkali, lapho indle ine-asidi futhi i-alkaline kulula ukugqwala.

Izinyathelo zokulwa: emithonjeni eyonakalisayo, izingxenye zenjoloba kufanele zimelane nezinga lokushisa eliphezulu, ukumelana ne-asidi ebuthakathaka, i-alkali fluororubber ebuthakathaka.

2. Ukuvuza kophawu lwemishini okubangelwa ukungcola kwezinhlayiyana eziqinile. Uma izinhlayiya eziqinile ebusweni bophawu, zizosikwa noma zisheshise izimpawu zokuguga, isikali kanye nokunqwabelana kwamafutha ebusweni be-shaft (isethi), ngesivinini esisheshayo kunesilinganiso sokuguga se-friction pair, indandatho ingakwazi. 'ukunxephezela ukususwa kokuhuzuka, ukupheya okuqinile kuya kokuqina kokungqubuzana kusebenza isikhathi eside kunokuqina kokupheya kwe-graphite friction, ngenxa yezinhlayiya eziqinile zigxilile endaweni evala indandatho ye-graphite.

I-Countermeasure: Uphawu lwemishini lwe-tungsten carbide friction pair kufanele lukhethwe endaweni lapho izinhlayiya eziqinile zingena kalula khona.

Ngenxa yezinye izinkinga ezibangelwa ukuvuza kwezimpawu zemishini izigxivizo zemishini zisekhona ekwakhiweni, ekukhethweni, ekufakweni nakwezinye izindawo ezingenangqondo.

1. Ukucindezela kwentwasahlobo kumele kwenziwe ngokuhambisana nemithetho, futhi akuvunyelwe ukuba kukhulu kakhulu noma kuncane kakhulu. Iphutha ngu-±2mm.

2. Ubuso bokugcina bomkhono we-shaft (noma umkhono we-shaft) ofaka indandatho yophawu lwendandatho egudlukayo kanye nobuso bokugcina bendlala yophawu (noma igobolondo) kufakwa indandatho emile yotywino kufanele bucwebezelwe futhi bupholishwe ukuze kugwenywe ukulimala kwendandatho emile ngesikhathi ihlanganiswa.