Umqondo ojwayelekile we-valve: isivalo se-valve nokusebenza okujwayelekile kwe-valve yesango: i-valve yesango eliwucezu kanye ne-valve yesango elihambisanayo

Umqondo ojwayelekile we-valve: isivalo se-valve nokusebenza okujwayelekile kwe-valve yesango: i-valve yesango eliwucezu kanye ne-valve yesango elihambisanayo

Umqondo ojwayelekile we-valve: uphawu lwe-valve nokusebenza
(I) Isigxivizo se-valve nokusebenza
1, i-valve emhlanganweni wokugcina kufanele wenziwe ngemva kokuhlolwa kokusebenza, ukuze kubhekwe ukuthi umkhiqizo uyahlangabezana yini nezidingo zokuklama nokuthi uyahlangabezana yini nezindinganiso zekhwalithi zikazwelonke. Amaphutha ezintweni ze-valve, izikhala, ukwelashwa kokushisa, ukukhanda imishini nokuhlanganisa ngokuvamile kungadalulwa ngesikhathi sokuhlolwa. Ukuhlola okuvamile kuhlanganisa ukuhlolwa kwamandla egobolondo, ukuhlolwa kokuvala uphawu, ukuhlolwa kokuvalwa kwengcindezi ephansi, ukuhlolwa kwesenzo, njll., futhi ngokwesidingo, ukuhlolwa okulandelayo kuzokwenziwa ngemva kokuphumelela ukuhlolwa ngokulandelana.
I-2, ukuhlolwa kwamandla: i-valve ingabhekwa njengomkhumbi wengcindezi, ngakho-ke idinga ukuhlangabezana nezidingo zokuthwala ingcindezi ephakathi ngaphandle kokuvuza, ngakho-ke umzimba we-valve, isembozo se-valve nezinye izingxenye ze-valve akufanele zibe khona kuthinte amandla okuqhekeka. , izimbotshana ezixekethile, i-slag nezinye iziphambeko. Ngaphezu kokuhlolwa okuqinile kokubukeka kanye nekhwalithi yangaphakathi ye-valve, umenzi we-valve kufanele futhi enze ukuhlolwa kwamandla ngamunye ngamunye ukuze kuqinisekiswe ukusebenza kwe-valve.
3, imbangela yokuvuza kwe-valve yokunciphisa ingcindezi
Njengengxenye ebalulekile yesistimu ye-hydraulic, umsebenzi oyinhloko we-valve yokunciphisa ingcindezi ukwenza ukucindezela kokuphuma kwesistimu kuhlale kuphansi kunezinga lokucindezela kokungena, ukugcina ukuzinza kokucindezela kokuphuma kwesistimu, kanye ukucindezela kokuphuma kwesistimu akuthintwa ukucindezela kokungena nokuguquguquka kokugeleza; Kodwa-ke, uma indawo yokuvala i-valve yokunciphisa ingcindezi ivuza, ayithinti nje kuphela ukukhiqizwa okuvamile, kodwa futhi kubangela ukulahlekelwa kwamafutha we-hydraulic kanye nokungcoliswa kwemvelo; Kuhlelo lwe-Marine hydraulic, i-valve yokunciphisa ingcindezi njengento eyinhloko yokulawula, ukubaluleka kwayo kokubeka uphawu akufanele kuthathwe kancane. Ngemuva kocwaningo oluhlanganyelwe kanye nokuhlaziya nochwepheshe abathintekayo bathole ukuthi ukuvala uphawu phakathi komkhono oxhumayo we-valve yokunciphisa ingcindezi kanye nomzimba we-valve kuncike kakhulu ku-O-ring phakathi komkhono oxhumayo nodonga lwangaphakathi lomzimba we-valve ukuze kuvalwe uphawu oluyindilinga, ukubekwa uphawu uma sekuphumelele, ukuvuza kwayo kwangaphandle akunakugwenywa.
4, i-butterfly valve test kanye nokufakwa kanye nezindlela zokuxazulula izinkinga
I-Butterfly valve noma i-manual, i-pneumatic, i-hydraulic, izingxenye zikagesi zilungisa iphutha ngaphambi kokuba ziphume, umsebenzisi lapho ehlola kabusha ukusebenza kokuvala, kuzo zombili izinhlangothi zokungenisa nokuthekelisa kuzolungiswa ngendlela efanayo, vala i-valve yediski, ingcindezi ekumunceni. ohlangothini, ohlangothini lokuthekelisa ukuze kubhekwe ukuthi ngabe kwenzeka yini ukuvuza, ngaphambi kwecala, amandla epayipini kufanele avule ipuleti lediski, ukuvimbela ukulimala kophawu.
Yize imikhiqizo ihlolwa ngokuqinile futhi ihlolwe ngaphambi kokuphuma efekthri, kukhona ukukhishwa kwesikulufu okuzenzakalelayo kweminye imikhiqizo ngesikhathi sokuthutha, edinga ukulungiswa kabusha, i-pneumatic, i-hydraulic, njll., sicela ufunde imiyalelo yokusebenza kwedivayisi yokushayela esekelayo.
Lapho i-valve ye-disc drive kagesi iphuma efektri, ukuvulwa nokuvala ukushaywa kwendlela yokulawula kulungisiwe. Ukuze uvimbele ukuqondiswa kwesishintshi samandla akulungile, umsebenzisi okokuqala ngqa ngemuva kokuvula amandla, okokuqala vula imanuwali endaweni evulekile ehhafu, ngokuhambisana neswishi kagesi ukuze ahlole isiqondiso sepuleti lesikhombisi kanye ne-valve. isiqondiso esivaliwe singahambisana.
5, i-valve yokulawula umoya/i-pneumatic cut-off valve ingumoya ocindezelwe njengomthombo wamandla, isilinda njenge-actuator, futhi kusetshenziswa i-valve positioner kagesi, iziguquli, i-solenoid valve, i-valve yokushayela i-valve njengokunamathiselwe, qaphela inani lokushintsha noma ukulungiswa kohlobo lwengxenye, isistimu yokulawula ezishintshayo zezimboni ithola isignali yokulawula ukuze iqedele ukulawula ukuhamba kwendawo yamapayipi, ingcindezi, izinga lokushisa kanye neminye imingcele yenqubo. I-valve yokulawula umoya ibonakala ngokulawula okulula, impendulo esheshayo, futhi iphephile ngaphakathi, ayidingi ukuthatha izinyathelo zokuvikela ukuqhuma futhi.
6, insimbi engagqwali uvemvane valve inqubo ukusetshenziswa nokugqwala mkhuba. Ngokuhlaziywa kwesakhiwo se-metallographic, ubuso bokuhlola ubucwebe, ubuso bokuhlolwa kokwelashwa kokushisa, i-SEM nezinye izivivinyo, kutholakala ukuthi isici esibalulekile sokugqwala kwempahla kungenxa yokuthi i-carbide idlula eduze kwemingcele yokusanhlamvu kumpahla ukuze yakhe indawo empofu ye-chrome, okuholela ekutheni ukugqwala kwe-stainless steel butterfly valve. I-valve uvemvane yensimbi engenasici eyenziwe nge-CF8M igqwalile ngesikhathi isetshenziswa. Ngemuva kokwelashwa okushisa okuvamile, isakhiwo se-austenitic stainless steel kufanele sibe yi-austenitic ekamelweni lokushisa, futhi ukumelana nokugqwala kuhle. Ukuze kuhlaziywe isizathu sokugqwala kwevalve uvemvane, amasampula athathwe kuyo ukuze ahlaziywe.
(ii) Izindlela zokwelapha ze-flange seal kanye nezindlela zokwelapha ezivuzayo
Kunezici eziningi ezithinta ukubekwa uphawu kwe-flange. Eziyinhloko yilezi: ukulayisha kuqala umshudo; Uhlobo lokuvala uphawu; Ukusebenza kwe-gasket; Ukuqina kwe-flange; Izimo zokusebenza. Ama-flange e-ANSI aklanywe yi-American National Standards Institute ukuze anikeze imboni kawoyela negesi ubuchwepheshe obufanele nobusebenzayo bokuvala amashumi eminyaka. Kodwa-ke, njengoba izidingo zemboni kawoyela negesi sezishintshile, ukushoda kwe-ANSI flange kuye kwadalulwa. Umgomo wokonga imali, ukuvikelwa kwemvelo, kanye neziqinisekiso zempilo yabantu kanye nokuphepha yilokho abaqhubi nosonkontileka ababhekana nakho ekhulwini lama-21.
Isiphetho:
Idizayini entsha kanye nokufakwa kwesistimu yokulawula, ukuze kuqinisekiswe ukuthi umlawuli angasebenza ngokujwayelekile lapho eshayela, futhi enze uhlelo lusebenze ngokuphephile, i-valve entsha ngaphambi kokufakwa, kufanele kuqala ihlole uphawu lwe-nameplate ye-valve luhambisana nezidingo zokuklama. Amaphrojekthi alandelayo nawo kufanele asuswe iphutha. Umkhawulo wephutha eliyisisekelo; Ukuchezuka okuphelele kwe-stroke; Buyela kwabampofu; Indawo efile; Ukuvuza (uma kunezidingo eziqinile). Uma kuyisistimu yokuqala ye-valve elawulayo iye yalungiswa kabusha, ngaphezu kwesheke elingenhla, kodwa futhi kufanele kube ibhokisi elidala lokugxusha i-valve kanye nezingxenye ezihlangene zesheke lokuvala uphawu.
I-valve yesango le-valve ejwayelekile: i-valve yesango le-wedge kanye ne-valve yesango elihambisanayo isetshenziswa njengendawo enqamulelayo, evuleke ngokugcwele lapho wonke ugeleza uqonde, ukwehla kwengcindezi egijima okuphakathi ku- ** * kuncane. Ama-valve esango ngokuvamile afaneleka izimo zokusebenza ezingadingi ukuvulwa nokuvala njalo, futhi ugcine isango livuliwe ngokugcwele noma livalwe ngokugcwele. Ayihloselwe ukusetshenziswa njengesilawuli noma i-throttling.
I-valve yesango isetshenziswa njengendlela yokusika, ukugeleza konke kuqondile lapho ivuliwe ngokugcwele, futhi ukulahlekelwa kwengcindezi yokuhamba okuphakathi kuncane ** *. Ama-valve esango ngokuvamile afaneleka izimo zokusebenza ezingadingi ukuvulwa nokuvala njalo, futhi ugcine isango livuliwe ngokugcwele noma livalwe ngokugcwele. Ayihloselwe ukusetshenziswa njengesilawuli noma i-throttling. Ngokugeleza kwejubane ELIPHEZULU OKUPHAKATHI, Isango LINGABANGA ukudlidliza kwesango esimweni sokuvuleka kwendawo, futhi ukudlidliza kungase konakalise indawo yokuvala yesango nesihlalo, futhi i-throttle izobangela isango ukuthi lihlupheke ngenxa yokuguguleka kwendawo ephakathi nendawo. .
Kusukela efomini lesakhiwo, umehluko omkhulu yindlela yesici sokuvala esisetshenzisiwe. Ngokwesimo sezakhi zokuvala, ama-valve esango avame ukuhlukaniswa abe yizinhlobo eziningana ezihlukene, njengama-valve esango eliwunqenqema, ama-valve esango ahambisanayo, ama-valve amasango amabili ahambisanayo, ama-wedge amasango amabili, njll. ** Amafomu avame ukusetshenziswa ama-valve esango le-wedge futhi ama-valve esango ahambisanayo.