Ulwazi lofakelo lwevalvu kunye nemiba efuna ingqalelo kwiimfuno zofakelo lwevalvu yezityalo zepetrochemical

Ulwazi lofakelo lwevalvu kunye nemibandela efuna ingqalelo iimfuno zofakelo lwe-valve yesityalo se-petrochemical iimfuno zofakelo lweValve Umgangatho wofakelo lwevalvu luhle okanye lubi, luchaphazela ngqo ukusetyenziswa kwevalvu emva, ke ngoko, iyunithi yokwakha kunye neyunithi yokuvelisa kufuneka yaziswe ukuba incamathele ukubaluleka okukhulu. Ukufakwa kwe-valve kuya kwenziwa ngokuhambelana nencwadana yomyalelo wevalve kunye nemimiselo efanelekileyo. Kwinkqubo yokwakha, kufuneka sihlolisise ngenyameko kwaye sakhe ngononophelo. Ngaphambi kokuba i-valve ifakwe, kufuneka ifakwe emva kokuba uvavanyo loxinzelelo lufanelekile. Khangela ngenyameko ukuba ngaba inkcazo kunye nemodeli yevalve iyahambelana nemizobo, khangela ukuba iindawo zevalve zichanekile, ingaba i-valve yokuvula kunye nokuvala iguquguqukayo kwaye ikhululekile, kwaye ingaba indawo yokutywina yonakaliswe, njl., kwaye ufake. ivalve emva kokuqinisekiswa. Xa i-valve ifakwe, indlela yokusebenza ye-valve kufuneka ibe malunga ne-1.2m ukusuka kumhlaba wokusebenza, oya kuhlanjululwa ngesifuba. Xa iziko le-valve kunye ne-handwheel lingaphezulu kwe-1.8m ukusuka kumhlaba wokusebenza, iqonga lokusebenza kufuneka limiselwe iivalve kunye nezivalo zokhuseleko kunye nokusebenza okungakumbi. Kwimibhobho enama-valve amaninzi, zama ukugxininisa iivalve kwiqonga ukuze usebenze ngokulula. Izixhobo ezifana ne-sprockets, i-extension rods, amaqonga ashukumayo, kunye neeleli ezishenxisekayo zinokusetyenziselwa iivalvu ezingaphezulu kwe-1.8m kwaye zingasetyenziswa rhoqo. Xa ivalve iFAKIWE NGAPHANTSI KOMBUSO OSEBENZAYO, INDLELA YOKWANDISA IYAKUbonelelwa, kwaye ivalve yomhlaba iya kubonelelwa ngequla eliphantsi, eliya kugqunywa ukhuseleko. Isiqu sevalve kumbhobho othe tyaba kufuneka sime ngokuthe nkqo phezulu. Ayifanelekanga ukufaka isiqu phantsi. Ufakelo lwevalve ezantsi, ukusebenza kakubi, ukugcinwa okungahambi kakuhle, kodwa kulula nakwingozi yevalve yokubola. Musa ukufaka i-valve yomgangatho we-askew ukuze ugweme ukusebenza okungahambi kakuhle. Ivalve kwicala lemibhobho yecala kufuneka ibe nesithuba sokusebenza, ukugcinwa kunye nokuqhaqha, kwaye umgama womnatha phakathi kwamavili ezandla awufanele ube ngaphantsi kwe-100mm. Ukuba umgama phakathi kwemibhobho uncinci, i-valve kufuneka igxininiswe. Kwi-valve enamandla amakhulu okuvula, amandla aphantsi, i-brittleness enkulu kunye nobunzima obukhulu, i-valve yokuxhasa isakhelo se-valve kufuneka isekwe ngaphambi kokufakwa ukunciphisa uxinzelelo lokuqala. Xa ufaka i-valve, sebenzisa isitshixo sombhobho kumbhobho osecaleni kwevalve kunye ne-wrench eqhelekileyo yevalve ngokwayo. Ngexesha elifanayo, ukufakela, ukwenza i-valve kwi-half-closed state ukukhusela ukujikeleza kwe-valve kunye nokuguqulwa. Ufakelo oluchanekileyo lwe-valve kufuneka lenze ifom yesakhiwo sangaphakathi ngokuhambelana nolwalathiso lokuhamba kwe-medium, ifom yokufakela ngokuhambelana neemfuno ezikhethekileyo zesakhiwo se-valve kunye neemfuno zokusebenza. Ingqwalasela ekhethekileyo kufuneka ihlawulwe kwiimfuno zokuhamba okuphakathi kwevalve kufuneka zifakwe ngokweemfuno zenkqubo yombhobho. ULUNGISELELO LWEVALVU KUFUNEKA LULUNGILE KWAYE KUFUMANEKA KUFUMANEKA KUMSEBENZISI. Kwiivalve ze-lift-stem, kufuneka kubekho indawo yokusebenza. Isiqu sazo zonke iivalvu kufuneka zinyuswe phezulu kwaye ziqonde kumbhobho kangangoko kunokwenzeka. Ufakelo lomphezulu woqhagamshelo lwevalvu Ukuba isiphelo sevalve sithungelwe, isikrufu kufuneka sijijwe kubunzulu bevalve. Ukuba i-screw ifakwe kwisitulo soxinzelelo olunzulu, iya kuchaphazela ukulungelelaniswa kakuhle kwesihlalo kunye nesango. Ukuba i-screw ikrwelwe kwindawo engekho nzulu, iya kuchaphazela ukuthembeka kokutywinwa komdibaniso, kwaye kulula ukwazisa ukuvuza. Kwangaxeshanye, imathiriyeli yokutywina intambo kufuneka yenziwe nge-PTFE tape ekrwada sealant, kwaye ulumke unganikeli imathiriyeli yokutywina kumngxunya wevalve. Kwiivalvu ZOQHAGAMSHELWANO NGESIPHELO SEFLANGE, KUQALA FUMANA UBUSO OKUQHAGAMSHELANAYO LWEFLANGE, NOBUSO ABANGAPHAMBI KOKUBHEKISELELE KUMGCA KUNYE NOMNTU WEBHUTI ONGAZINIWEYO. I-VALVE flange kufuneka ihambelane neflange yombhobho, i-gap ye-flange iphakathi, akufuneki kubekho umlomo ongalunganga, ukuthambeka kunye nezinye izinto, i-gasket ephakathi phakathi kweeflange kufuneka ibekwe embindini, ayikwazi ukujijwa, ibholithi kufuneka i-symmetrical kwaye iqiniswe ngokulinganayo. Ikhusela amandla ongezelelweyo ashiyekileyo ekunyanzelweni ukuba aqinise uqhagamshelo ngexesha lofakelo lwevalvu. Ngaphambi kokufakela, umbhobho wodonga lwangaphakathi kunye nentambo yangaphandle kufuneka ihlambuluke ngokucokisekileyo kumdaka; *** I-Burr kunye nemicimbi yangaphandle ethintela ukuhamba kwe-medium kwaye inokuchaphazela ukusebenza kwezixhobo, ukuvuthela ukungcola, i-slag kunye nezinye i-sundries kumbhobho ngaphambi kokuxhuma. Thintela umonakalo kwindawo yokutywina yevalve okanye iplagi yevalve. Xa ufaka i-valve edibeneyo ekupheleni kwe-welding, i-welding seam kuzo zombini iziphelo ze-valve emva kokutshatyalaliswa kwendawo kufuneka ilungiswe kuqala, emva koko i-valve kufuneka ivulwe, kwaye i-welding seam kufuneka ifakwe ngokwenkqubo ye-welding. Emva kwe-welding, ukubonakala kunye nomgangatho we-weld wangaphakathi we-weld kufuneka uhlolwe ukuze kuqinisekiswe ukuba akukho porosity, ukufakwa kwe-slag, i-crack, njl., kunye ne-weld kufuneka ihlolwe yi-ray okanye phezu kolawulo xa kuyimfuneko. Ufakelo lweevalvu ezinzima Xa KUFAKA IIVAVAVU EZINZIMA (DN100), SEBENZISA IZIXHOBO ZOKUPHAKAMISA OKANYE IZIXHOBO, INTAMBO YOKUPHAKAMISA KUFANELE KUBOTSHELWE KWIFANGE OKANYE isibiyeli se-valve, kungekhona kwisikhondo sohlobo lwesibambo, ukuze AS ukuphepha umonakalo kwivalve. Zeziphi iimfuno jikelele zofakelo lwevalvu? Impendulo: Iimfuno jikelele zofakelo lwevalvu, ubude bofakelo obufanelekileyo, ivalve kumbhobho othe tye, indlela yesiqu sevalve zezi zilandelayo: (1) Ivalve kufuneka ibekwe kwindawo ekulula ukufikelela kuyo, kulula ukuyisebenzisa nokuyigcina. IIMVAVVULENZO kumqolo wemibhobho (ezifana nemibhobho ukuya nokusuka kwisixhobo) kufuneka zicwangciswe kwindawo esembindini, kwaye iqonga lokusebenza kunye neleli kufuneka ziqwalaselwe. Ukulungelelaniswa okufanayo kwevalve kumbhobho, umgca wayo ophakathi kufuneka ube kufutshane ngokusemandleni. Umgama womnatha phakathi kwamavili ezandla kufuneka ungabi ngaphantsi kwe-10Qmm. Ukuze kuncitshiswe umgama phakathi kwemibhobho, iivalve zinokugungqa. (2) Indawo yofakelo yesivalo esisebenza rhoqo kufuneka kube lula ukusebenza, kwaye umphakamo ofanelekileyo wofakelo yi-1.2m ukusuka kumphezulu wokusebenza. Xa umphakamo wombindi wevalve yesandla ivelu engaphezulu kwe-2m yendawo yokusebenza, iqonga kufuneka limiselwe iqela levalve okanye ivalve esebenza rhoqo kunye nevalve yokhuseleko, kwaye amanyathelo afanelekileyo kufuneka athatyathwe kwivalve engasebenzi rhoqo. (ezifana ne-sprocket, intonga yokwandisa, iqonga elishukumayo kunye neleli ehambayo, njl. njl.). Ikhonkco le-sprocket akufanele lithintele ukufikelela. Iivalvu ezikwimibhobho kunye nezixhobo ezinezixhobo eziyingozi aziyi kufakwa kumphakamo wentloko yomntu, ukwenzela ukuba ingonakalisa intloko, okanye yenzakalise ngokuthe ngqo ubuso bomntu xa ivelufa ivuza; (3) Ivalve esetyenziswa kwisixhobo sokwahlula kufuneka idityaniswe ngokuthe ngqo nomlomo wombhobho wesixhobo okanye isondele kwisixhobo. Ivalve kumgca wombhobho odityaniswe nezixhobo zendlela enetyhefu eyingozi kakhulu kufuneka idityaniswe ngokuthe ngqo nomlomo wesixhobo, kwaye ivalve ayiyi kusebenzisa ikhonkco elithe nkqo; (4) Isivalo sonyango lwengozi esifana nesivalo samanzi omlilo, ivelufa yomphunga womlilo kunye nezinye iivalvu ezimbini kufuneka zisasazwe, kwaye kuthathelwe ingqalelo ukusebenza ngokukhuselekileyo kwengozi. Olu hlobo lwevalve kufuneka lubekwe emva kwegumbi lokulawula. Emva kodonga lokhuseleko, ngaphandle komnyango womzi-mveliso, okanye kumgama othile okhuselekileyo ukusuka kwindawo yengozi; Ukuze kuqhume ingozi, umqhubi unokusebenza ngokukhuselekileyo; (5) Ukongeza kwiimfuno ezizodwa zenkqubo, ivalve kumbhobho ongezantsi wenqaba, i-reactor, isitya esithe nkqo kunye nezinye izixhobo aziyi kucwangciswa kwi-skirt; (6) isivalo esisikiweyo sombhobho wesebe othe tyaba okhokelela kumbhobho owomileyo kufuneka sibekwe kufutshane nengcambu yecandelo lombhobho othe tye; (7) ivelufa yokukhangela yokuphakamisa kufuneka ifakwe kumbhobho othe tye, ivelufa yokukhangela yokunyusa eme nkqo kufuneka ifakwe kumbhobho ohamba phakathi ukusuka ezantsi ukuya phezulu kumbhobho othe nkqo. Ivalve yokukhangela i-Swing kufuneka ifakwe ngokukhethekileyo kumbhobho othe tye, inokufakwa kwakhona kumbhobho ophakathi wokuhamba ukusuka ezantsi ukuya kumbhobho othe nkqo; Ivalve esezantsi kufuneka ifakwe kumphakamo wofakelo lwempompo yecentrifugal, ingakhetha ivalve yokukhangela ibhabhathane; Ukuphuma kwempompo kunye nedayamitha yombhobho edityanisiweyo ayihambelani, ingakhetha ivalve yokukhangela i-diameter encitshisiweyo; (8) umgama osembindini phakathi kwevili lesandla sevalvu elungiselelwe ukujikeleza iqonga lokusebenza kunye nomphetho weqonga lokusebenza akufanele ube mkhulu kune-450mm, xa isikhondo kunye nevili lesandla zinwenwela ngaphezulu kweqonga kwaye ubude bungaphantsi kwe-2m, akufanele kuchaphazele ukusebenza kunye nokuhamba komsebenzisi; (9) Isivalo sombhobho ongaphantsi komhlaba kufuneka sibekwe kumsele wombhobho okanye kwiqula, kwaye ukuba kuyimfuneko, intonga yokwandisa ivalve kufuneka isetiwe. Ivalve yamanzi yomlilo kufuneka ibe neempawu ezicacileyo; (10) Kwivalve ekumbhobho othe tye, icala lesiqu lingamiselwa ngolu hlobo lulandelayo: ngokuthe nkqo ukuya phezulu; Inqanaba; Ukuthambeka phezulu kwama-45; Ukuthambeka ezantsi 45; Akukho nkqo ezantsi; (11) Isiqu sevalve ethe tyaba yofakelo lwevalve yohlobo lwentonga evulekileyo, xa ivalve ivulwa, isikhondo sevalve asiyi kuchaphazela indlela yokudlula. Khangela ufakelo lwevalve lufuna ingqwalasela (1) Indawo yofakelo, ubude, ukungenisa elizweni kunye nolwalathiso lokuthumela ngaphandle kufuneka lufezekise iimfuno zoyilo, nikela ingqalelo kwindlela yokuhamba okuphakathi kufuneka ihambelane notolo oluphawulwe ngumzimba wevalvu, uqhagamshelo kufuneka luqine kwaye luqine. . (2) Inkangeleko yesivalo kufuneka ihlolwe phambi kofakelo, kwaye ipleyiti yegama lesivalo kufuneka ihambelane nemigaqo yomgangatho wangoku wesizwe "ILogo yeValve Jikelele" GB 12220. Kuba uxinzelelo lokusebenza lukhulu kune-1.0mpa kwaye kwi-valve Logo umbhobho oyintloko wokunqumla indima yevalve, kufuneka ifakwe phambi kokuqina kunye novavanyo olungqongqo lokusebenza, olufanelekileyo emva kokusetyenziswa. Ngethuba lovavanyo lwamandla, uxinzelelo lovavanyo luyi-1.5 ngamaxesha oxinzelelo oluncinci, kwaye ubude bexesha abukho ngaphantsi kwe-5min. Iqokobhe levalvu kunye nokupakishwa kuya kufaneleka ngaphandle kokuvuza. Uvavanyo lokuqina, uxinzelelo lovavanyo luyi-1.1 amaxesha oxinzelelo lwegama; Ubude bexesha lovavanyo luhambelana neemfuno ze-GB 50243. (3) Musa ukwenza i-valve yokukhangela ubunzima bebhere kumbhobho, i-valve enkulu yokukhangela (i-AETV yendlela enye) : kufuneka i- ** * ixhaswe, ukwenzela ukuba ayichatshazelwa luxinzelelo oluveliswa yinkqubo yombhobho.