A.Ukufakwa kwe-valve yesango
I-valve yesango, eyaziwa nangokuthi i-valve yesango, ivalvu esebenzisa isango ukuze ilawule ukuvuleka nokuvala, futhi ilungise ukugeleza kwepayipi futhi ivule futhi ivale ipayipi ngokushintsha ingxenye enqamulayo.Ama-valve esango asetshenziswa kakhulu kumapayipi avula ngokugcwele noma avale ngokugcwele indawo ewuketshezi. Ukufakwa kwe-valve yesango ngokuvamile akunazo izidingo zokuqondisa, kodwa akukwazi ukuphetshwa.
B.Ukufakwa kweimbulunga i-valve
I-valve ye-globe iyi-valve esebenzisa i-valve disc ukulawula ukuvulwa nokuvala. Lungisa ukugeleza okuphakathi noma unqamule i-medium passage ngokushintsha igebe phakathi kwe-valve disc kanye nesihlalo se-valve, okungukuthi, ukushintsha usayizi wesigaba sesiteshi. Lapho ufaka i-valve yokuvala, ukunakwa kufanele kukhokhwe ekuqondeni kokugeleza koketshezi.
Umgomo okumelwe ulandelwe lapho kufakwa i-valve yembulunga ukuthi uketshezi olusepayipini ludlula emgodini wevalvu ukusuka phansi luye phezulu, oluvame ukubizwa ngokuthi “ukukhipha okuphansi nokuphezulu”, futhi akuvunyelwe ukulifaka emuva.
C.Ukufakwa kwe-valve yokuhlola
Hlola i-valve, eyaziwa nangokuthi i-valve yokuhlola kanye ne-valve yendlela eyodwa, i-valve evuleka ngokuzenzakalelayo futhi ivale ngaphansi kwesenzo somehluko wengcindezi phakathi kwengaphambili nangemuva kwe-valve. Umsebenzi wawo ukwenza ukugeleza okuphakathi nendawo endaweni eyodwa kuphela futhi kuvimbele okuphakathi ukuthi kugeleze kubuyele emuva. Ngokwezakhiwo zabo ezahlukene,hlola ama-valve faka uhlobo lokuphakamisa, uhlobo lokushwiba kanye nohlobo lwe-butterfly wafer. Lift isheke valve ihlukaniswe enezingqimba futhi mpo. Lapho ufaka i-hlola i-valve, ukunakwa kufanele futhi kukhokhwe ekuqondeni kokugeleza kwe-medium futhi akukwazi ukufakwa ngokuhlehla.
D.Ukufakwa kwe-valve yokunciphisa ingcindezi
I-valve yokunciphisa ukucindezela i-valve enciphisa ukucindezela kokungena kungcindezi ethile edingekayo yokuphuma ngokulungiswa, futhi incike emandleni omthombo ngokwawo ukuze kugcinwe ngokuzenzakalelayo ukucindezela kokuphuma kuzinzile.
1. Iqembu lama-valve okwehlisa ukucindezela elifakwe mpo ngokuvamile libekwe eceleni kodonga endaweni ephakeme efanele ukusuka phansi; iqembu le-valve yokunciphisa ingcindezi efakwe ngokuvundlile ngokuvamile lifakwa endaweni yokusebenza ehlala njalo.
2. Insimbi yesicelo ilayishwa odongeni ngaphandle kwama-valve okulawula amabili (ngokuvamile asetshenziselwa ama-globe valves) ukuze kwakheke ubakaki, futhi ipayipi lokudlula liphinde linamathele kubakaki ukuze lilingane futhi liqondaniswe.
3. I-valve yokunciphisa ukucindezela kufanele ifakwe iqonde epayipini elivundlile, futhi akufanele ithambekele. Umcibisholo osemzimbeni we-valve kufanele ukhombe isiqondiso sokugeleza okuphakathi, futhi akufanele ufakwe emuva.
4. Ama-valve eglobhu kanye nezikali zokucindezela okuphezulu nokuphansi kufanele kufakwe nhlangothi zombili ukuze kubhekwe izinguquko zokucindezela ngaphambi nangemva kwe-valve. Ububanzi bepayipi ngemuva kwevalvu yokunciphisa ukucindezela kufanele bube ngu-2#-3# mkhulu kunobubanzi bepayipi lokungena ngaphambi kwevalvu, futhi ipayipi lokudlula kufanele lifakwe ukuze lilungiswe.
5. Ipayipi elilinganisa ingcindezi yevalvu yokunciphisa umfutho we-membrane kufanele ixhunywe epayipini lomfutho ophansi. Amapayipi anomfutho ophansi kufanele afakwe amavalvu okuphepha ukuze kuqinisekiswe ukusebenza ngokuphephile kohlelo.
6. Uma isetshenziselwa ukuchithwa kwe-steam, ipayipi yokudonsa kufanele isethwe. Kuzinhlelo zamapayipi ezidinga izinga eliphezulu lokuhlanzwa, isisefo kufanele sifakwe ngaphambi kwevalvu yokunciphisa ukucindezela.
7. Ngemuva kokufakwa kweqembu le-valve yokunciphisa ingcindezi, i-valve yokunciphisa ingcindezi kanye ne-valve yokuphepha kufanele ihlolwe ingcindezi, ihlanjululwe futhi ilungiswe ngokuvumelana nezidingo zokuklama, futhi uphawu olulungisiwe kufanele lwenziwe.
8. Lapho ushayela i-valve yokunciphisa ukucindezela, vala i-valve yokungena yesinciphisi sokucindezela bese uvula i-valve yokushaywa ukuze uyishaye.
E.Ukufakwa kwezicupho
Umsebenzi oyisisekelo wesicupho se-steam ukukhipha amanzi ajiyilethi, umoya kanye negesi ye-carbon dioxide ohlelweni lwesitimu ngokushesha ngangokunokwenzeka; ngesikhathi esifanayo, kungavimbela ngokuzenzakalelayo ukuvuza kwe-steam ngezinga elikhulu kakhulu. Kunezinhlobo eziningi zezicupho, ngasinye sinomsebenzi ohlukile.
1. Amavalvu okuvala (amavalvu okuvala) kufanele amiswe ngaphambi nangemuva, futhi isisefo kufanele sibekwe phakathi kwesicupho kanye nevalvu yokuvala yangaphambili ukuze kuvinjelwe ukungcola emanzini ajiyile ekuvimbeni isicupho.
2. Ipayipi lokuhlola kufanele lifakwe phakathi kwe-steam trap kanye ne-valve yokuvala yangemuva ukuze kuhlolwe ukuthi i-steam trap isebenza ngokujwayelekile yini. Uma inani elikhulu le-steam likhishwa lapho ipayipi lokuhlola livuliwe, kusho ukuthi isicupho se-steam siphukile futhi sidinga ukulungiswa.
3. Inhloso yokubeka ipayipi ye-bypass ukukhipha inani elikhulu lamanzi ahlanganisiwe ngesikhathi sokuqala nokunciphisa umthwalo wokudonsa amanzi wesicupho.
4. Uma isicupho sisetshenziselwa ukukhipha amanzi ahlanganisiwe emishini yokushisa, kufanele ifakwe engxenyeni engezansi yezinto zokushisa, ukuze ipayipi ye-condensate ibuyiselwe ngokuqondile esicupheni se-steam ukuvimbela amanzi ukuba agcinwe. izinto zokufudumeza.
5. Indawo yokufaka kufanele ibe seduze nendawo yokukhipha amanzi ngangokunokwenzeka. Uma ibanga likude kakhulu, umoya noma isitimu sizonqwabelana epayipini elizacile eliphambi kogibe.
6. Uma ipayipi elivundlile lepayipi elikhulu lesitimu lilide kakhulu, inkinga yokukhipha amanzi kufanele icatshangelwe.
F.Ukufakwa kwe-valve yokuphepha
I-valve yokuphepha iyi-valve ekhethekile ukuthi izingxenye zokuvula nokuvala zisesimweni esivame ukuvalwa ngaphansi kwesenzo samandla angaphandle. Lapho ingcindezi yezinto ezisetshenziswayo noma epayipini ikhuphuka ngaphezu kwenani elishiwo, ikhipha okuphakathi kuya ngaphandle kwesistimu ukuvimbela ukucindezela okuphakathi nendawo epayipini noma okokusebenza ukuthi kudlule inani elishiwo. .
1. Ngaphambi kokufaka, umkhiqizo kufanele uhlolwe ngokucophelela ukuze kuqinisekiswe ukuthi sikhona yini isitifiketi sokuvumelana nebhukwana lomkhiqizo, ukuze kucaciswe ingcindezi engapheli lapho uphuma efekthri.
2. I-valve yokuphepha kufanele ihlelwe ngokuseduze ngangokunokwenzeka endaweni yesikhulumi ukuze ihlolwe futhi igcinwe.
3. I-valve yokuphepha kufanele ifakwe ngokuqondile, i-medium kufanele igeleze isuka phansi iye phezulu, futhi ukuphakama kwesiqu se-valve kufanele kuhlolwe.
4. Ngaphansi kwezimo ezijwayelekile, ama-valve okuvala awakwazi ukusetha ngaphambi nangemva kwe-valve yokuphepha ukuze kuqinisekiswe ukuphepha nokuthembeka.
5. Ukunciphisa ingcindezi yevalvu yokuphepha: lapho okuphakathi kuwuketshezi, ngokuvamile kukhishelwa epayipini noma ohlelweni oluvaliwe; lapho i-medium kuyigesi, ngokuvamile ikhishelwa emkhathini wangaphandle;
6. Indawo kawoyela negesi ngokuvamile ingakhishelwa emkhathini, futhi ukuphuma kwepayipi elikhipha umoya ivalvu yokuphepha kufanele kube ngamamitha amathathu ngaphezu kwezakhiwo ezizungezile eziphakeme kakhulu, kodwa lezi zimo ezilandelayo kufanele zikhishelwe ohlelweni oluvaliwe ukuze kuqinisekiswe ukuphepha.
7. Ububanzi bepayipi labantu kufanele okungenani bulingane nobubanzi bepayipi lokungena levalvu; ububanzi bepayipi yokukhipha akufanele bube buncane kunobubanzi bokuphuma kwe-valve, futhi ipayipi yokukhipha kufanele iholelwe ngaphandle futhi ifakwe ngendololwane, ukuze ukuphuma kwepayipi kubhekane nendawo ephephile.
8. Uma i-valve yokuphepha ifakiwe, lapho uxhumano phakathi kwe-valve yokuphepha kanye nemishini kanye nepayipi kuvulwa i-welding, ububanzi bokuvula kufanele bufane nobubanzi obujwayelekile be-valve yokuphepha.
Isikhathi sokuthumela: Jun-10-2022
