Ukwaziswa{0}}kwendawo yokusebenza kwendlela yevalvu yesandla
Ukuvulwa nokuvalwa kwevalve yesandla:
1. Ivalve ye-manual yeyona valve isetyenziswa kakhulu. Ivili lesandla salo okanye isiphatho senziwe ngokuhambelana nabasebenzi abaqhelekileyo, kuthathelwa ingqalelo amandla omgangatho wokutywina kunye namandla okuvala ayimfuneko. Ngoko ke, awukwazi ukusebenzisa i-lever ende okanye i-wrench ende ukuhamba. Abanye abantu bajwayele ukusebenzisa i-wrenches, kwaye kufuneka baqaphele ukuba bangasebenzisi amandla amaninzi, ngaphandle koko kulula ukulimaza indawo yokutywina, okanye ukuphula isondo lesandla kunye nesibambo.
2. Xa uvula kwaye uvala i-valve, amandla kufuneka azinzile ngaphandle kwempembelelo. Ezinye iindawo zoxinzelelo oluphezulu-zevaluvu ezinempembelelo yokuvula nokuvalwa zithathele ingqalelo ukuba le mpembelelo yempembelelo ayinakulingana naleyo yeevalvu ngokubanzi.
3. Kuba, phambi kokuvula, kufuneka ifudunyezwe{1}}kwangaphambili kwaye namanzi ajingisiweyo kufuneka asuswe. Xa uvula, kufuneka kucothise kangangoko kunokwenzeka ukuphepha isando samanzi.
4. Xa i-valve ivuliwe ngokupheleleyo, i-handwheel kufuneka iguqulwe phezulu ukuze yenze imicu ngokuqinileyo ukuphepha ukukhulula kunye nokulimala. Kwiivalvu zesikhondo ezinyukayo, khumbula ukuma kwesikhondo sevalve xa ivuleke ngokupheleleyo kwaye ivalwe ngokupheleleyo ukunqanda ukubetha kumbindi ongaphezulu ofileyo xa ivuleke ngokupheleleyo. Kwaye kulungele ukujonga ukuba iyinto eqhelekileyo xa ivalwe ngokupheleleyo. Ukuba isiqu sevalve siyawa, okanye inkunkuma enkulu ifakwe phakathi kwevalve core seal, indawo esimi kuyo isikhondo sevalvu iya kutshintsha xa ivalwe ngokupheleleyo.
5. Xa umbhobho usetyenziswa okokuqala, kukho ubuninzi bokungcola kwangaphakathi. Ungayivula kancinane ivalve, usebenzise-isantya esiphezulu sokuhamba kwesiphakathi ukuyihlamba, kwaye emva koko uyivale ngobunono (ungakhawulezi okanye ngobundlobongela ukunqanda ukungcola okushiyekileyo kukonakalisi umphezulu wokutywina), uyilayite kwakhona, phinda oku amaxesha amaninzi, gungxula ngaphandle ukungcola, uze ukubeke kumsebenzi wesiqhelo.
6. Kwivalve eqhelekileyo evulekileyo, kunokubakho ukungcola kumphezulu wokutywina. Xa ivaliwe, sebenzisa le ndlela- ikhankanyiweyo ngasentla ukuyigungxula icoceke, kwaye emva koko uyivale ngokusesikweni.
7. Ukuba isondo lesandla kunye nesibambo zonakaliswe okanye zilahlekile, kufuneka zixhotywe ngokukhawuleza, kwaye azikwazi ukutshintshwa kunye ne-flexible wrench, ukwenzela ukuba ugweme umonakalo kwi-valve stem, ukuvulwa nokuvala ukungaphumeleli, okubangelwa iingozi kwimveliso.
8. Ezinye imidiya ziyaphola emva kokuba ivalve ivaliwe ukucutha ivalve. Umsebenzisi kufuneka ayivale kwakhona ngexesha elifanelekileyo ukuze kungabikho zintanda kumphezulu wokutywina. Ngaphandle koko, i-medium iya kuqukuqela kwimingxuma ngesantya esiphezulu kwaye iya kukhukuliseka ngokulula. Umphezulu wokutywina.
9. Ngethuba lokusebenza, ukuba umsebenzi ufunyenwe unzima kakhulu, isizathu kufuneka sihlalutywe. Ukuba ukupakisha kuqinile kakhulu, kunokukhululeka ngokufanelekileyo. Ukuba isiqu sevalve sigobile, kufuneka baziswe abasebenzi ukuba basilungise. Ewe, kwimeko evaliweyo, inxalenye yokuvala ishushu kwaye yandiswa, ibangela ubunzima ekuvuleni; ukuba kufuneka ivulwe ngeli xesha, isigqubuthelo sevalve sinokukhululeka isiqingatha sokujika ukuya kwelinye ukuphelisa uxinzelelo kwisiqu sevalve, kwaye emva koko uhambise isondo lesandla.
Izilumkiso ze{0}}kwindawo yeevalvu:
1. Ukushisa okuphezulu ngaphezu kwe-200℃, kuba kubushushu obuqhelekileyo ngexesha lofakelo, kwaye emva kokusetyenziswa ngokuqhelekileyo, ukushisa kuphakama, i-bolt ishushu ukuze ikhulise, kwaye i-gap iyanda, ngoko kufuneka igxininiswe kwakhona, ebizwa ngokuba yi "thermal tightening". Umsebenzisi kufuneka anikele ingqalelo kulo msebenzi. Ngaphandle koko, ukuvuza kuya kwenzeka ngokulula.
2. Xa imozulu ibanda, ukuba i-valve yamanzi ivaliwe ixesha elide, amanzi aqokelelweyo emva kwevalve kufuneka asuswe. Emva kokuba ivalve yomphunga iyeke umphunga, amanzi ajijekileyo kufuneka nawo asuswe. Umzantsi wevalve ufana neplagi yocingo, enokuvulwa ukuze ikhuphe amanzi.
3 Ngethuba lokusebenza, ukuvula kunye nokuvala amandla akufanele kube mkhulu kakhulu, ngakumbi kungabi namandla. Kwakhona nikela ingqalelo ukuphepha amaqhuma ezinto.
4. Xa i-valve entsha isetyenzisiweyo, ukupakishwa akufanele kugxininiswe kakhulu, ukwenzela ukuba kungavuzi, ukwenzela ukuba ugweme ukunyanzeliswa okukhulu kwi-valve stem, ukukhawuleza ukugqoka, kunye nokuvula kunye nokuvalwa okunzima.
Usebenza njani ngokuchanekileyo -ivili lesandla sevalvu yobungqina bokudubula
I-valve handwheel sisixhobo esiyimfuneko somnyango. Ukuba nolwazi ngendlela echanekileyo yokusebenza kwevili lesandla sesivalo kunceda kakhulu ekwandiseni ubomi benkonzo yesivalo. Indlela echanekileyo yokusebenza kwevalve handwheel Phambi kokuba usebenze, khangela ukuba ivalve ivaliwe okanye ivuliwe. Ngokuqhelekileyo, ukujikeleziswa kwevalve ngasekunene yindlela yokuvala yevalve, kwaye ukujikeleza okuchasene newotshi yindlela yokuvula yevalve. Ivalve ivuliwe kwaye ivalwe ngokwendlela yokujikeleza. sebenza. Ukuze utywine ngcono ivalve, uqhagamshelwano phakathi kondoqo wevalve kunye nesitulo sevalvu ludla ngokwenziwa ngezinto ezilastiki zerabha. Ngoko ke, xa uvula i-valve, amandla kufuneka ahlale eqinile, ukuze angasebenzisi amandla amaninzi, angonakalisa indawo yokutywina i-valve okanye ivili lesandla se-valve. Ubungakanani besandla sevalve yesandla buyilwe ngokuhambelana nabantu abaqhelekileyo, ngoko ke kuchaziwe ukuba i-valve handwheel idiameter ingaphantsi kwe-320mm, kwaye mnye kuphela umntu ovumelekileyo ukuyisebenzisa. Ivili lesandla sevalve elikhulu kuno okanye elilingana ne 320mm linokuvumela abantu ababini ukuba basebenze okanye basebenzise izixhobo ezinje nge-F wrench ukuvula nokuvala ivalve{11}} Nangona kunjalo, akuvumelekanga ngokungqongqo ukusebenzisa iileva kunye nezinye izixhobo zokuvula nokuvala ivalve ye-diaphragm engeyiyo{12}}ivalve yentsimbi, ukuze kuthintelwe ukonakala kwangaphambi kwexesha kwivalvu. Kwiivalve ezifana ne-valve yesango kunye ne-globe valves, xa zivaliwe okanye zivulwe ukuya ekupheleni, kufuneka ziguqule i-1/4 ukuya kwi-1/2 ukujika ukwenza imicu iqine ngakumbi, ukwenzela ukuba ingagqithisi i-valve kwaye yonakalise i-valve. Iivalvu ezineevalve zokudlula, ezinjenge:,,, kunye nezinye iivalvu. Xa uvula, i-valve ye-bypass kufuneka ivulwe kuqala ukulungelelanisa ukuhlukana koxinzelelo phakathi kwe-inlet kunye ne-outlet kunye nokunciphisa i-torque yokuvula ukwenza lula ukuvulwa kwevalve.
