Ka 30s, theserurubele belofoe ile ea qaptjoa United States, ea tsebisoa Japane lilemong tsa bo-50, 'me ea sebelisoa haholo Japane lilemong tsa bo-60,' me ea phahamisoa Chaena ka mor'a lilemo tsa bo-70. Hajoale, li-valve tsa serurubele tse kaholimo ho DN300 mm lefatšeng butle-butle li nkile sebaka sa li-valve tsa heke. Ha ho bapisoali-valve tsa heke, li-valve tsa serurubele li na le nako e khutšoanyane ea ho bula le ho koala, torque e nyenyane ea ho sebetsa, sebaka se senyenyane sa ho kenya le boima bo bobebe. Ho nka mohlala oa DN1000, valve ea serurubele e ka bang 2T, 'me valve ea heke e ka bang 3.5T,' me serurubele se bonolo ho kopanya le lisebelisoa tse sa tšoaneng tsa ho khanna, tse nang le nako e telele le tse ka tšeptjoang.
Bobebe ba tiiso ea rabaraserurubele belofoke hore ha e sebelisoa bakeng sa throttling, cavitation e tla etsahala ka lebaka la tšebeliso e sa nepahaleng, e leng ho tla etsa hore setulo sa rabara se fokotsehe 'me se senyehe. Lilemong tsa morao tjena, Chaena e boetse e ntlafalitse li-valve tsa tšepe tse tiisitsoeng tsa serurubele, 'me lilemong tsa morao tjena, Japane e boetse e ntlafalitse li-valve tsa serurubele tse bōpehileng joaloka khekhe tse nang le cavitation resistance, vibration e tlaase le lerata le tlaase.
Bophelo ba tšebeletso ea setulo sa ho tiisa ka kakaretso ke lilemo tse 15-20 bakeng sa rabara le lilemo tse 80-90 bakeng sa tšepe tlas'a maemo a tloaelehileng. Leha ho le joalo, mokhoa oa ho khetha ka nepo o itšetlehile ka litlhoko tsa maemo a mosebetsi.
Kamano pakeng tsa ho buloa ha aserurubele belofo'me sekhahla sa phallo ha e le hantle se lekane ebile se lekana. Haeba e sebelisetsoa ho laola lebelo la phallo, litšoaneleho tsa eona tsa phallo li boetse li amana haufi-ufi le ho hanyetsa phallo ea liphaephe, tse kang bophara le sebōpeho sa li-valve tse kentsoeng liphaepheng tse peli li tšoana, 'me coefficient ea tahlehelo ea liphaephe e fapane,' me tekanyo ea phallo ea valve e tla fapana haholo.
Haeba valve e le boemong ba ho thothomela ho hoholo, karolo e ka morao ea sekhahla sa valve e atisa ho ba le cavitation, 'me ho na le monyetla oa ho senya valve, kahoo hangata e sebelisoa ka ntle ho 15 °.
Ha valve ea serurubele e le bohareng ba ho bula, sebopeho sa ho bula se entsoeng kebelofo'Mele le karolo e ka pele ea serurubele e tsepamisitsoe holim'a shaft ea valve,' me mahlakoreng a mabeli a theha linaha tse fapaneng, karolo e ka pele ea serurubele ka lehlakoreng le leng e tsamaea ka tsela ea metsi a phallang, 'me lehlakoreng le leng le tsamaea khahlanong le tsela ea metsi a phallang, ka hona,' mele oa belofo ka lehlakoreng le leng 'me letlapa la valve le theha lekhalo le bōpehileng joaloka nozzle,' me ka lehlakoreng le leng le tšoana le thipa ea throttle, 'me ka lehlakoreng le leng, ka lehlakoreng le leng ho tšoana le ho buloa ha metsi a phallang. lehlakoreng, 'me khatello e mpe e tla hlahisoa tlas'a valve ea lehlakoreng la throttle,' me hangata tiiso ea rabara e oa.
The tshebetso torque ea serurubele belofo, ka lebaka la ho fapaneng ho bula le ho bula tataiso ea belofo, boleng ba eona e fapane, le rapameng serurubele belofo, haholo-holo-bophahamo se seholo-bophahamo, ka lebaka la botebo ba metsi, torque e hlahisoang ke phapang pakeng tsa hlooho e ka holimo le e ka tlaase ea molamu oa phuputso e ke keng ea hlokomolohuoa. Ho phaella moo, ha setsoe se kenngoa ka lehlakoreng le kenang la valve, ho thehoa phallo ea ho kheloha, 'me torque e eketseha. Ha valve e le bohareng ba ho bula, mochine o sebetsang o hloka ho itšehla thajana ka lebaka la ketso ea torque ea phallo ea metsi.
Nako ea poso: Aug-22-2024
