Ukugcina ivalvu yokuphuma ivaliwe ngesikhathiAmaphampu e-Centrifugalukusebenza kwethula izingozi eziningi zobuchwepheshe.
Ukuguqulwa kwamandla okungalawulwa kanye nokungalingani kwe-thermodynamic
- 1.1 Ngaphansi kwesimo sokuvalwa kokwanda kwezinga lokushisa eliphakathi, cishe wonke amandla okufaka aguqulwa abe amandla okushisa. I-medium ayikwazi ukususa ukushisa, okwenza izinga lokushisa ekamelweni lephampu likhuphuke kakhulu. Ukusebenza okuqhubekayo kuzobangela ukuhwamuka kwe-medium, kusheshiswe ukufakwa kwe-carbonization kwezinto zokuvala
1.2 Ukwehluleka kwesistimu yokuvala Ezindaweni zokushisa okuphezulu kanye nokuhwamuka kwe-medium, i-mechanical seal ethembele ekugcotshweni nasekupholiseni kwe-medium izoholela ekwehlulekeni kwayo kokushisa ngokweqile - i-mechanical seal izoba nokungqubuzana okomile futhi ubuso be-seal buzoshiswa.
Ukucindezeleka okungavamile kwemishini
- 2.1 Ukweqiwa kwamandla e-Axial Amandla e-axial e-valve yokuvala ngokuvamile aphindwe izikhathi ezingu-1.5-5 kunezimo zokusebenza ezijwayelekile, futhi umthwalo we-push bearing ungafinyelela noma udlule ngisho nomkhawulo wawo wokuthwala, okuholela ekuqhekekeni kwe-bearing cage noma ekuguqukeni kwe-cage.
2.2 Umonakalo wokudlidliza nokukhathala Umehluko ekukhuleni kokushisa okubangelwa ukushisa okuphezulu uholela ekuguqukeni kokushisa noma ekucindezelekeni kokushisa, igebe elingavamile phakathi kwe-impeller kanye ne-pump housing, kanye nomthelela womthwalo we-hydraulic ongalingani, obangela ukuthi ibhalansi eguquguqukayo ye-rotor yonakale, ukudlidliza kukhuphuke, futhi izingxenye zonakaliswe ukukhathala.
Ukulimala kwe-cavitation kanye nezinto ezibonakalayo
3.1 Isibonelelo se-NPSH esiguquliwe sibe yi-vaporization ephakathi [yenza isibonelelo se-cavitation (NPSHa) sedivayisi sibe ngaphansi kune-NPSHr edingekayo yephampu], kwakha amabhamuza, futhi igagasi lokushaqeka elidalwa ukubhidlika kwamabhamuza lingafinyelela ku-690MPa, okuholela ekuqhekekeni kwemigodi kanye nokuchitheka kwezinyosi kwesigijimi se-impeller.
3.2 Ukuwohloka kwesakhiwo se-Metallographic Kuma-impeller ensimbi engagqwali e-austenitic, ukuzwela kungenzeka emazingeni okushisa aphezulu endawo, futhi izinga lokugqwala kwe-intergranular lizokhula futhi amandla okudonsa azoncipha. Kuma-impeller ensimbi yekhabhoni, izinkinga emazingeni okushisa aphezulu zibaluleke kakhulu, njengokushiswa kwe-oxidation nokususwa kwe-carburization emazingeni okushisa aphezulu, okuholela ekwehleni kwamandla omhlaba kanye nezinqubomgomo ezijwayelekile; Uma iqukethe ukungcola okufana ne-sulfur ne-phosphorus, kulula ukukuhlukanisa emingceleni yokusanhlamvu emazingeni okushisa aphezulu, okubangela ukuqhekeka kokushisa nokuqhekeka kalula ngesikhathi sokusebenza; Ngaphansi kokushisa okuphezulu kwesikhathi eside, insimbi yekhabhoni inokumelana nokuqhekeka okubi, futhi izinga lokushisa eliphezulu lendawo lingasheshisa ukuguquguquka kwe-creep, okuzogcina kuholele ekuqhekekeni kwe-impeller noma ukwehluleka kokukhathala.
Ukuphepha kohlelo kanye nezingozi zomnotho
4.1 Ukucindezela kokucindezela kwegobolondo elithwala ingcindezi kudlula umkhawulo futhi ukusebenza kwevalvu yokuvala kwenza ukucindezela kokuphuma kwephampu kufinyelele ku-120-150% wenani elilinganiselwe, futhi kukhona ingozi yokuphula ukucindezela okubekiwe kwevalvu yokuphepha, okungase kubangele ukukhululeka kokukhishwa kwengcindezi noma ukuqhekeka kwe-weld yephayiphi.
4.2 Ukusetshenziswa kwamandla kanye nezindleko zokulungisa ukwanda Ukusebenza kokuvala ivalvu "kuyisimo esibulalayo" samaphampu e-centrifugal, okwandisa kakhulu ukusetshenziswa kwamandla esikhathini esifushane, futhi ukusebenza kwesikhathi eside kuzoholela ekulimaleni okulimazayo emishinini, futhi izindleko zokulungisa eziphelele zingakhuphuka ngokuphindwe ka-3-10.
Ukuwohloka kwezimo zokusebenza zemidiya ekhethekile
Kwimidiya eguquguqukayo (isb., i-LPG), ukusebenza kwe-valve evaliwe kuzosheshisa ukuhwamuka kwesigaba soketshezi, kanti ukugeleza kwe-gas-liquid kwezigaba ezimbili ekamelweni lephampu kuzobangela izinguquko zokugeleza okungazelelwe, okuholela ekushintsheni ngezikhathi ezithile kwamandla e-axial kanye nokusheshisa ukuguguleka kwezingxenye.
Ulwazi lwemboni kanye nezidingo ezijwayelekile
6.1 Ulwazi lwemboniNgokwesipiliyoni sangempela sohlelo lokusebenza lobunjiniyela, umkhawulo wesikhathi sokusebenza kwevalvu yepompo ye-centrifugal akumele udlule imizuzu emi-2, futhi ngokuvamile ukhawulelwe kumzuzu o-1. Kunconywa ukusetha uhlelo lokulawula i-interlock ukuze luqalise ngokuzenzakalelayo uhlelo lokuvikela ukuvala lapho ivalvu yokuphuma ivala futhi iqhubeka isikhathi eside.
6.2 Incazelo ejwayelekile idinga ukuthi indinganiso ye-API 610 12th Edition ithi amanye amaphampu anamandla aphezulu, agxiliwe noma anezigaba eziningi anokwenyuka kwezinga lokushisa okusheshayo lapho ivalvu yokuphuma ivaliwe, okwenza ukuhlolwa kungenzeki futhi/noma kungaphephile lapho ivalvu ivaliwe. Ukwenyuka kwezinga lokushisa kuhlobene kakhulu nobuningi bamandla. Ubuningi bamandla PD, okungalinganiswa ngokuthi:
Isilinganiso se-P: Isilinganiso samandla ngesigaba ngasinye lapho amanzi ku-hp (noma i-MW)
I-D imp: Ububanzi be-impeller obulinganisiwe ku-in. (noma m)
I-nozzle D: Ububanzi be-flange yokuphuma obujwayelekile ngaphakathi (noma m). Kumaphampu adonsa kabili, anesigaba esisodwa, i-nozzle D iwububanzi be-flange yokungena.
Inani elijwayelekile elibalulekile le-PD lingu-0.286 hp/in.3 (13 MW/m3), ngale kwalokho kunconywa ukuthi ungasebenzisi iphampu ivalvu yokuphuma ivaliwe ngesikhathi sokuhlolwa kokusebenza.
Isikhathi sokuthunyelwe: Juni-04-2025