1. Khetho ea valve ea heke
Ka kakaretso, li-valve tsa heke li lokela ho khethoa.Li-valve tsa heke ha li tšoanelehe feela bakeng sa mouoane, oli le mecha e meng ea litaba, empa hape le bakeng sa li-sodiums tse nang le granular le viscosity e kholo, 'me li loketse li-vents le li-valve tse tlase tsa vacuum system.Bakeng sa mecha ea phatlalatso e nang le likaroloana tse tiileng, 'mele oa valve ea heke o tla ba le masoba a le mong kapa a mabeli a ho hloekisa.Bakeng sa mocheso o tlase oa mocheso, valve e khethehileng ea heke ea mocheso e tlaase e lokela ho khethoa.
2. Tlhaloso ea khetho ea li-valve tsa lefats'e
Globe valve e loketse litlhoko tsa ho hanyetsa mokelikeli oa pipeline, ke hore, tahlehelo ea khatello ha e nahane, 'me mocheso o phahameng, phaephe e phahameng ea khatello e phahameng kapa sesebelisoa, e loketseng DN <200mm mouoane le liphaephe tse ling tsa mecha ea litaba;Li-valve tse nyane li ka khetha li-valve tsa lefats'e, joalo ka valve ea nale, valve ea sesebelisoa, sampling valve, valve gauge gauge, joalo-joalo. Li-valve tsa Globe li na le taolo ea phallo kapa taolo ea khatello, empa ho nepahala ha phetoho ha ho holimo, 'me bophara ba phala bo batla bo le nyane. , e lokela ho khetha valve ea globe kapa valve ea throttle;Bakeng sa seaplane se chefo haholo, ho loketse ho khetha li-bellows tse tiisitsoeng tsa globe valve;Leha ho le joalo, valve ea lefats'e ha ea lokela ho sebelisoa bakeng sa seaplane se nang le viscosity e kholo le sehare se nang le likaroloana tse bonolo ho theola, leha e le hore se sebelisoe bakeng sa valve ea vent le valve e tlase ea vacuum system.
3, Blitaelo tsohle tsa khetho ea li-valve
Ball valve e loketse mocheso o tlase, khatello e phahameng, viscosity ea mahareng.Li-valve tse ngata tsa bolo li ka sebelisoa ka likaroloana tse tiileng tse emisitsoeng bohareng, ho ea ka litlhoko tsa thepa ea ho tiisa li ka boela tsa sebelisoa bakeng sa mecha ea phatlalatso ea phofo le granular;Valve ea bolo ea kanane e felletseng ha e tšoanelehe bakeng sa taolo ea phallo, empa e loketse liketsahalo tse hlokang ho buloa le ho koaloa ka potlako, e leng ho loketseng ho phethahala ha likotsi tsa tšohanyetso;Hangata ka ts'ebetso e tiileng ea ho tiisa, ho roala, kanale ea shrinkage, ho bula le ho koala ketso ka potlako, khatello e phahameng ea khatello (phapang ea khatello), lerata le tlase, ketsahalo ea gasification, torque e nyane ea ts'ebetso, ho hanyetsa mokelikeli o monyane pompong, ho khothaletsoa ts'ebeliso ea valve ea bolo. ;Balofo ea bolo e loketse sebopeho sa leseli, ho fokotsa khatello e tlase, mecha ea litaba e senyang;Balofo kapa mocheso o tlase, seaplane cryogenic ke ho fetisisa loketseng belofo, tlaase mocheso seaplane tsamaiso ea liphaephe le sesebediswa, e lokela ho sebelisoa le sekoahelo belofo tlaase mocheso bolo;Khetho ea lisebelisoa tsa setulo sa li-valve tse phaphametseng li lokela ho nka bolo le mojaro o mahareng o sebetsang, valafo e kholo ea bophara bo sebetsang e hloka matla a maholo, DN≥200mm valve ea bolo e lokela ho khethoa foromo ea phetisetso ea liboko;Fixed ball valve e loketse bophara bo boholo le linako tse phahameng tsa khatello;Ho feta moo, valve ea bolo e sebelisoang bakeng sa ts'ebetso ea lisebelisoa tse chefo haholo, liphaephe tse bohareng tse tukang, li lokela ho ba le sebopeho se sa cheng, se khahlanong le static.
4, Tlitaelo tsa khetho ea li-valve tsa hrottle
Li-valve tsa throttle li loketse mocheso o bohareng o tlaase, linako tse phahameng tsa khatello, tse loketseng tlhokahalo ea ho lokisa phallo le likarolo tsa khatello, ha e tšoanelehe bakeng sa viscosity mme e na le likaroloana tse tiileng tsa bohareng, eseng joaloka valve ea ho arohana.
5, Plitaelo tsa khetho ea valve ea lug
Plug valve e loketse liketsahalo tsa ho bula le ho koala ka potlako, hangata ha e tšoanelehe bakeng sa mouoane le mocheso o phahameng oa mocheso, bakeng sa mocheso o tlaase, o phahameng oa viscosity medium, hape o loketse bohareng ba likaroloana tse emisitsoeng.
6, Blitaelo tsa khetho ea utterfly valve
Butterfly valve e loketse bophara bo boholo (joalo ka DN> 600mm) le litlhoko tse khutšoane tsa bolelele ba sebopeho, hammoho le tlhoko ea taolo ea phallo le litlhoko tsa ho bula le ho koala ka potlako ha ketsahalo, hangata e sebelisetsoa mocheso ≤80 ℃, khatello ≤1.0MPa metsi, oli le moea o hatelitsoeng le mecha e meng ea litaba;Ha ho bapisoa le li-valve tsa heke le li-valve tsa bolo, li-valve tsa serurubele li loketse tsamaiso ea liphaephe tse nang le litlhoko tsa tahlehelo ea khatello ea lax.
7, Clitaelo tsa khetho ea heck valve
Li-valve tsa ho hlahloba hangata li loketse mecha ea litaba e hloekileng, eseng bakeng sa mecha ea litaba e nang le likaroloana tse tiileng le viscosity.Ha DN≤40mm, sebelisa li-valve tsa ho phahamisa (tse lumelloang feela ho kenngoa liphaepheng tse otlolohileng);Ha DN = 50 ~ 400mm, ho loketse ho sebelisa swing lifting check valve (ka liphaephe tse tšekaletseng le tse otlolohileng li ka kenngoa, joalo ka lipeipi tse otlolohileng, phallo e mahareng ho tloha tlase ho ea holimo);Ha DN≥450mm, valve ea ho hlahloba mofuta oa buffer e lokela ho sebelisoa;Ha DN = 100 ~ 400mm e ka boela ea khetha valve ea ho hlahloba sephaphatha;Swing cheke valve e ka etsoa ka khatello e phahameng ea ho sebetsa, PN ho fihla ho 42MPa, ho latela khetla le thepa ea tiiso e ka sebelisoa ho mofuta ofe kapa ofe oa mocheso o sebetsang.Bohareng ke metsi, mouoane, khase, sebaka se senyang, oli, meriana, joalo-joalo Thempereichara ea ho sebetsa ea mahareng e pakeng tsa -196 ℃ le 800℃.
8, Dlitaelo tsa khetho ea valve ea iphragm
Valve ea diaphragm e loketse mocheso oa ho sebetsa o ka tlase ho 200 ℃, khatello e ka tlase ho oli ea 1.0MPa, metsi, acidic medium le medium e emisitsoeng, ha e loketse li-solvents tsa manyolo le seaplane se matla sa oxidant;Abrasive granular medium e lokela ho khetha valve ea weir diaphragm, valve ea weir diaphragm e lokela ho bua ka tafole ea eona ea phallo;Mokelikeli oa li-viscous, slurry ea samente le sebaka sa pula se lokela ho khetha ka ho toba ka valve ea diaphragm;Li-valve tsa diaphragm ha lia lokela ho sebelisoa mehala ea vacuum le lisebelisoa tsa vacuum ntle le ha ho boletsoe.
Li-valve li fapana ka ts'ebeliso, khafetsa ea ts'ebetso le ts'ebeletso.Ho laola kapa ho felisa esita le ho lutla ho honyenyane, li-valve ke lisebelisoa tsa bohlokoa ka ho fetisisa le tsa bohlokoa.Ho bohlokoa ho ithuta ho khetha valve e nepahetseng.
Nako ea poso: Nov-19-2021