I-Ductile Iron Soft Seal Gate Valve vs. I-Ductile Iron Hard Seal Gate Valve
Amavalvu esango lokuvala elithambile kanye namavalvu esango lokuvala eliqinile asetshenziswa kakhulu ukulawula nokuvalela ukugeleza, womabili anokusebenza okuhle kokuvala, ububanzi bokusetshenziswa, futhi angomunye wemikhiqizo amakhasimende ayithenga kakhulu. Abanye abaqalayo abathengayo bangase babe nelukuluku, njengoba kunjalo nangevalvu yesango, uyini umehluko oqondile phakathi kwawo?
I-seal ethambile iyisivalo esiphakathi kwensimbi nengeyona insimbi, kanti i-seal eqinile iyisivalo esiphakathi kwensimbi nensimbi. I-valve yesango le-seal ethambile kanye ne-valve yesango le-seal eqinile kuyizinto zokuvala, i-seal eqinile icutshungulwa ngokunemba ngezinto zesihlalo ukuqinisekisa ukunemba kokulingana ne-spool (ibhola), ngokuvamile insimbi engagqwali kanye nethusi. I-seal ethambile ifakwe ku-valve. Izinto zokuvala isihlalo se-valve ziyizinto ezingezona ezensimbi, ngenxa yokuthi izinto zokuvala ezithambile zinezinga elithile lokuguquguquka, ngakho-ke izidingo zokunemba kokucubungula ziphansi kakhulu kune-seal eqinile. Ngezansi thatha ukuthi uqonde umehluko phakathi kwe-valve yesango le-seal ethambile kanye ne-valve yesango le-seal elukhuni.
Izinto zokuqala zokuvala
1. Izinto ezimbili zokuvala zihlukile. I-valve yesango lokuvala elithambile ivame ukuba yirabha noma i-PTFE nezinye izinto. I-valve yesango lokuvala eliqinile elisebenzisa insimbi engagqwali nezinye izinsimbi.
2. Ukuvalwa okuthambile: ukuvala uhlangothi oluphambene lwezinhlangothi ezimbili zezinto zensimbi, olunye uhlangothi lwezinto ezingezona ezensimbi ezinwebekayo, ezaziwa ngokuthi "ukuvalwa okuthambile". Umphumela wokuvala wama-valve anjalo esango, kodwa hhayi ukushisa okuphezulu, okulula ukugqokwa nokuklebhuka, kanye nezakhiwo ezimbi zemishini. Njengensimbi + irabha; insimbi + i-PTFE nokunye.
3. Ukuvalwa okuqinile: ukuvalwa okuqinile nokuvalwa kuzo zombili izinhlangothi kuyinsimbi noma ezinye izinto eziqinile. Ukuvalwa okunjalo kwe-valve yesango kubi, kodwa kumelana nokushisa okuphezulu, ukumelana nokuguguleka, kanye nezakhiwo ezinhle zemishini. Njengensimbi + insimbi; insimbi + ithusi; insimbi + i-graphite; insimbi + i-alloy steel; (kungaphinde kusetshenziswe insimbi ephonswe, insimbi ye-alloy, i-spray paint alloy, njll.).
Okwesibili, inqubo yokwakha
Imboni yemishini inendawo yokusebenza eyinkimbinkimbi, eminingi yayo engokushisa okuphansi kakhulu kanye nokucindezela okuphansi, ukumelana okuphezulu kwemidiya, kanye nokugqwala. Manje, intuthuko yezobuchwepheshe iholele ekwandeni kwama-valve esango eliqinile.
Ukuze kucatshangelwe ubudlelwano phakathi kobulukhuni bensimbi, ivalvu yesango lokuvala oluqinile, kanye nokuvala okuthambile, umzimba wevalvu udinga ukuqina, kanye nepuleti yevalvu kanye nesihlalo sevalvu ukuze kuqhubeke kugaywa ukuze kufezwe ukuvala. Umjikelezo wokukhiqiza ivalvu yesango lokuvala oluqinile umude kakhulu.
Okwesithathu, ukusetshenziswa kwezimo
1, uphawu oluthambile lungafinyelela ukuvuza okungenalutho, uphawu oluqinile lungalungiswa ngokuya ngezidingo zaphezulu naphansi;
2、Izimbobo ezithambile zingavuza ngaphansi kwamazinga okushisa aphezulu, kudingeka uqaphele ukuvimbela umlilo, futhi izimbobo eziqinile ngeke zivuze ngaphansi kwamazinga okushisa aphezulu. Isimbobo esiqinile sevalvu yokuvala esiphuthumayo singasetshenziswa ekucindezelweni okuphezulu, isimbobo esithambile asikwazi ukusetshenziswa.
3, kwezinye izinto ezilimazayo, uphawu oluthambile alukwazi ukusetshenziswa, ungasebenzisa uphawu oluqinile;
4, ekushiseni okuphansi kakhulu, izinto zokuvala ezithambile zizoba nokuvuza, ukuvala okuqinile akuyona inkinga enjalo;
Okwesine, ukukhethwa kwemishini kuvuliwe
Womabili amazinga okuvala angafinyelela ayisithupha, ngokuvamile ngokusekelwe ku-medium yenqubo, izinga lokushisa, kanye nengcindezi yokukhetha i-valve yesango efanele. Kwimidiya ejwayelekile equkethe izinhlayiya eziqinile noma ezihudulayo, noma lapho izinga lokushisa lidlula ama-degrees angu-200, kungcono ukukhetha i-hard seal. Uma i-torque ye-valve yokuvala inkulu, kufanele ukhethe ukusebenzisa i-hard seal valve engaguquki.
Ezinhlanu, umehluko empilweni yenkonzo
Inzuzo yesivalo esithambile ukuvala okuhle, ububi ukuthi kulula ukuguga, ukuguguleka, impilo emfushane. Impilo yenkonzo yokuvala kanzima inde, kanti ukusebenza kokuvala kubi kunokuvala okuthambile, lokhu kokubili kungaphelelisana.
Lokhu okungenhla umehluko phakathi kwevalvu yesango elithambile kanye nokwabelana ngolwazi lwevalvu yesango eliqinile, ngithemba ukuthi ngizokwazi ukukusiza emsebenzini wokuthenga.
