Ekusetshenzisweni kweamaphampu aludaka, Ngokukhula kokusetshenziswa kwezimpawu zemishini, inkinga yokuvuza iye yadonsa ukunakwa okwengeziwe. Ukusebenza kwezimpawu zemishini kuthinta ngokuqondile ukusebenza okuvamile kwepompo. Isifinyezo nokuhlaziya imi kanje.
1. Ukuvuza ngezikhathi ezithile
(1) Ukunyakaza kwe-axial ye-pump rotor kukhulu, futhi ukuphazamiseka phakathi kwesigxivizo esiwusizo kanye ne-shaft kukhulu, futhi indandatho ejikelezayo ayikwazi ukuhamba ngokuguquguqukayo ku-shaft. Ngemuva kokuthi iphampu iguqulwe futhi izindandatho ezijikelezayo nezimile zigqokwe, ukufuduka akukwazi ukunxeshezelwa.
Isixazululo: Lapho uhlanganisa uphawu lwemishini, ukunyakaza kwe-axial ye-shaft kufanele kube ngaphansi kuka-0.1mm, futhi ukuphazanyiswa phakathi kwe-axiliary seal kanye ne-shaft kufanele kube okulinganiselwe. Ngenkathi iqinisekisa i-radial seal, iringi ejikelezayo ingahanjiswa kalula ku-shaft ngemva kokuhlanganiswa. (Cindezela indandatho ye-rotary entwasahlobo futhi ingagxuma ngokukhululeka).
(2) Ukungathambisa okunganele kwendawo evalekayo kubangela ukungqubuzana okomile noma ama-rough endaweni yokugcina yokuvala.
Isixazululo:
A) Iphampu ye-slurry evundlile: Kufanele kunikezwe amanzi anele okupholisa.
B) Iphampu yemfucumfucu engaphansi kwamanzi: Ubude bendawo kawoyela wokugcoba ekamelweni likawoyela kufanele bube phezulu kunendawo yokuvala yezindandatho eziguquguqukayo nezimile.
(3) Irotha iyandindizela ngezikhathi ezithile. Isizathu siwukuthi ukungahambi kahle kwe-stator kanye nama-caps okugcina aphezulu naphansi noma ukungalingani kwe-impeller kanye ne-shaft eyinhloko, i-cavitation noma ukuthwala umonakalo (ukugqoka) kuzobangelwa. Lesi simo sizofinyeza impilo ye-seal futhi sibangele ukuvuza.
Isixazululo: Inkinga engenhla ingalungiswa ngokwezinga lokulungisa.
2. Ukuvuza ngenxa yengcindezi
(1) Ukuvuza kophawu lwemishini okubangelwa ukucindezela okukhulu namagagasi okucindezela. Lapho ingcindezi ethile yasentwasahlobo kanye nomklamo wengcindezi othize umkhulu kakhulu futhi ingcindezi endaweni yophawu idlula i-MPa engu-3, ingcindezi ethile yobuso bokugcina uphawu izoba nkulu kakhulu, ifilimu yoketshezi kuzoba nzima ukwenza, futhi ukuphela kophawu. ubuso buzoguga kakhulu. , Isizukulwane sokushisa siyanda, okubangela ukuguqulwa kokushisa kwendawo yokubeka uphawu.
Isixazululo: Lapho uhlanganisa uphawu lwemishini, ukucindezela kwentwasahlobo kufanele kwenziwe ngokuhambisana nemithethonqubo, futhi akuvunyelwe ukuba kukhulu kakhulu noma kuncane kakhulu. Izinyathelo kufanele zithathwe ukuze kufakwe uphawu lwemishini ngaphansi kwezimo ezicindezelayo. Ukuze wenze amandla obuso bokugcina afaneleke futhi anciphise ukuguquguquka, izinto ezinamandla ezicindezelayo eziphezulu njenge-carbide enosimende kanye ne-ceramic zingasetshenziswa, futhi izinyathelo zokupholisa nezokugcoba kufanele ziqiniswe, futhi izindlela zokudlulisa ukushayela ezifana nezihluthulelo nezikhonkwane zingakhethwa.
(2) Ukuvuza kophawu lwemishini okubangelwa ukusebenza kwe-vacuum. Ngesikhathi sokuqala nokumiswa kwepompo, ngenxa yokuvinjelwa kwe-pump inlet kanye negesi equkethwe endaweni ephonswayo, kungase kubangele ukucindezela okungalungile emgodini ovaliwe. Uma kukhona ukucindezela okungekuhle endaweni evalekile, Ukungqubuzana Komile endaweni yokuphela kophawu kuzobangelwa, okuzophinde kubangele ukuvuza komoya (amanzi) kuphawu lomshini olwakhelwe ngaphakathi. Umehluko phakathi kwe-vacuum seal kanye ne-positive pressure seal umehluko ekuqondeni kwento evalayo, futhi uphawu olusebenza ngomshini nalo lukwazi ukuzivumelanisa nezimo endaweni eyodwa.
Isixazululo: Yamukela i-double end face seal mechanical, esiza ukuthuthukisa izimo zokugcoba nokuthuthukisa ukusebenza kokuvala. (Qaphela ukuthi iphampu ye-slurry evundlile ngokuvamile ayinayo le nkinga ngemva kokuxhuma i-pump inlet)
3. Ukuvuza kwe-Mechanical seal okubangelwa ezinye izinkinga
Kusenezindawo ezingenangqondo ekwakhiweni, ekukhethweni nasekufakweni kwezigxivizo eziyimishini.
(1) Ukucindezelwa kwesiphethu kufanele kwenziwe ngokuhambisana nemithethonqubo. Ukweqisa noma okuncane kakhulu akuvunyelwe. Iphutha ngu-±2mm. Ukucindezelwa ngokweqile kuzokhuphula ingcindezi ethile yobuso bokugcina, futhi ukushisa okungqubuzanayo okudlulele kuzodala ukuwohloka kokushisa kwendawo yokuvala futhi kusheshise ukuguga kobuso. Uma ukucindezelwa kukuncane kakhulu, uma ingcindezi ethile yobuso bokuphela kwendandatho emile futhi eguquguqukayo inganele, uphawu alukwazi ukwenziwa.
(2) Indawo yokugcina ye-shaft (noma umkhono) lapho kufakwe khona indandatho yotywino ehambayo kanye nendawo yokugcina ye-gland evalayo (noma indlu) lapho kufakwa khona indandatho emile kufanele ishaywe indiva futhi isikwe ukuze kugwenywe ukulimala izindandatho zophawu lwendandatho ezihambayo nezimile ngesikhathi sokuhlanganiswa.
4. Ukuvuza okubangelwa i-medium
(1) Ngemva kokuhlakazwa kwezigxivizo eziningi ezisebenza ngomshini ngaphansi kokugqwala noma izinga lokushisa eliphezulu, izigxivizo eziyinsiza zeringi enganyakazi kanye nendandatho egudlukayo azinalastic, kanti ezinye zibolile, okubangela ukuvuza okukhulu kophawu lukamshini ngisho nokwenzeka ukugaya shaft. Ngenxa yomphumela olimazayo wezinga lokushisa eliphezulu, i-asidi ebuthakathaka ne-alkali ebuthakathaka kundle eringini emile kanye nesigxivizo senjoloba esiyinsimbi yeringi ehambayo, ukuvuza komshini kukhulu kakhulu. Impahla yendandatho ye-rubber ehambayo futhi emile yokuvala uphawu yi-nitrile-40, engamelani nokushisa okuphezulu. Ayizweli ku-asidi ne-alkali, futhi kulula ukugqwala lapho indle ine-asidi ne-alkaline.
Isixazululo: Kwemithombo yezindaba ebolayo, izingxenye zenjoloba kufanele zibe yirabha eyi-fluorine imelana nezinga lokushisa eliphezulu, i-asidi ebuthakathaka kanye ne-alkali ebuthakathaka.
(2) Ukuvuza kophawu lwemishini okubangelwa izinhlayiya eziqinile nokungcola. Uma izinhlayiya eziqinile zingena ekugcineni kophawu, zizoklwebha noma zisheshise ukuguga kobuso bokuphela. Izinga lokunqwabelana lesikali namafutha endaweni ye-shaft (umkhono) lidlula izinga lokuguga lepheya yokungqubuzana. Ngenxa yalokho, indandatho enyakazayo ayikwazi ukukhokhela ukuguquguquka kokugqoka, futhi impilo yokusebenza ye-hard-to-hard friction pair yinde kunaleyo ye-hard-to-graphite friction pair, ngoba izinhlayiya eziqinile zizofakwa ku indawo yokuvala indandatho yokuvala i-graphite.
Isixazululo: Uphawu lomshini lwe-tungsten carbide kuya kupheya ye-tungsten carbide friction kufanele ikhethwe endaweni lapho izinhlayiya eziqinile kulula ukungena khona. …
Okungenhla kufingqa izimbangela ezivamile zokuvuza kwezigxivizo zemishini. I-mechanical seal ngokwayo iwuhlobo lwengxenye enembayo ephezulu enezidingo eziphakeme, futhi inezidingo eziphakeme ekwakhiweni, ekwenzeni imishini, kanye nekhwalithi yokuhlanganisa. Uma usebenzisa izimpawu zemishini, izici ezihlukahlukene zokusetshenziswa kwezimpawu zemishini kufanele zihlaziywe, ukuze izimpawu zemishini zifanele izidingo zobuchwepheshe kanye nezidingo eziphakathi kwamaphampu ahlukahlukene futhi zibe nezimo ezanele zokugcoba, ukuze kuqinisekiswe isikhathi eside futhi esithembekile. ukusebenza kwezimpawu.
Isikhathi sokuthumela: Oct-18-2021