Mokhoa oa ho khetha Valve e nepahetseng ea Heke bakeng sa Sisteme ea Hau ea Indasteri

Ho utloisisa Li-valve tsa Heke

Mosebetsi le Molao-motheo oa ho sebetsa

Li-valve tsa liheke ke li-valve tse tsamaeang ka mela e etselitsoeng ho bula kapa ho koala ka botlalo tselana ea phallo ea phaephe. Ha valve e le sebakeng se bulehileng, heke (disk e bataletseng kapa e bōpehileng joaloka wedge) e phahamisoa ka ntle ho tsela ea ho phalla, e lumellang hore mokelikeli o phalle ka ho hanyetsa ho fokolang. Sebakeng se koetsoeng, heke e theoleloa ho thibela ho phalla ka ho feletseng. Ts'ebetso ea valve ea heke e atisa ho finyelloa ka ho fetola lebili la letsoho kapa ho sebelisa actuator (e kang motlakase, pneumatic, kapa hydraulic) ho tsamaisa kutu, e leng eona e phahamisang kapa e theola heke.

Mefuta ea Li-valve tsa Heke

Li-valve tsa heke ea Wedge

Single-Wedge Gate Valves:Tsena ke mefuta e atileng haholo ea li-valve tsa heke ea wedge. Heke e na le disc e le 'ngoe, e tiileng e bōpehileng joaloka chesele. Li loketse mefuta e mengata ea likopo 'me li ka fana ka ts'ebetso e babatsehang ea ho tiisa. Ka mohlala, liphaepheng tsa phepelo ea metsi, li-valve tsa heke tse nang le wedge e le 'ngoe li ka laola phallo ea metsi ka nepo.

Double-Wedge Gate Valves:Consisting of two wedge-shaped discs that are forced apart against the valve seat as the valve is closed. This design helps to compensate for any irregularities in the valve seat and provides better sealing. Double - wedge gate valves are often used in high-pressure applications where a tight seal is crucial, such as in some oil and gas pipelines.

Li-valve tsa Heke ea Slide tse Tšoanang

Ka li-valve tsa heke tsa li-slide tse bapileng, heke e tsamaea e bapile le tataiso ea phallo. Li tsejoa ka bokhoni ba tsona ba ho sebetsana le liphaephe tse kholo tsa bophara le litekanyetso tse phahameng tsa phallo. Hangata li-valve tsena li sebelisoa lits'ebetsong moo mokelikeli o nang le likaroloana tse tiileng kapa li-slurries, kaha ho tsamaisana ho tšoanang ha heke ho fokotsa kotsi ea ho jamming. Mohlala, ts'ebetsong ea merafo moo mokelikeli o tsamaisoang o ka bang le likaroloana tsa ore, li-valve tsa heke tse tšoanang e ka ba khetho e nepahetseng.

Lintlha tsa Bohlokoa ho Khetha Li-valve tsa Heke

Litšobotsi tsa Mokelikeli

Mofuta oa Mokelikeli

Metsi: Bakeng sa lino tse hloekileng tse kang metsi, li-valve tse tloaelehileng tsa heke tse entsoeng ka thepa e kang tšepe e entsoeng ka tšepe kapa tšepe ea carbon li ka sebelisoa. Leha ho le joalo, haeba mokelikeli o senya, joalo ka litharollo tse nang le asiti kapa alkaline, li-valve tse entsoeng ka tšepe e sa hloekang, li-alloys tse thehiloeng ho nickel, kapa li-valve tse nang le corrosion linings (joaloka li-valve tse entsoeng ka rabara kapa tsa polasetiki) li lokela ho nkoa. Sebakeng sa lik'hemik'hale moo asiti ea sulfuric e tsamaisoang teng, valve ea heke ea tšepe e sa hloekang kapa valve e nang le lesela la fluoropolymer e tla ba e loketseng haholoanyane.

khase: Ha u sebetsana le likhase, ntho e ka sehloohong e amehang ke thibelo ea ho lutla. Li-valve tsa heke tse nang le litiiso tse tiileng le lisebelisoa tse khonang ho mamella khatello le mocheso oa khase lia hlokahala. Ka mohlala, liphaepheng tsa khase ea tlhaho, li-valve tsa heke tse nang le khatello e phahameng tse nang le litiiso tsa tšepe-to-metal li atisa ho sebelisoa ho netefatsa hore khase e tsamaisoa ka mokhoa o sireletsehileng.

Slurry kapa Mekelikeli e nang le likaroloana: Lits'ebetsong moo mokelikeli o nang le likaroloana tse tiileng kapa e le slurry, li-valve tse nang le phallo e kholo ea phallo le moralo o ka thibelang ho bokellana ha likaroloana le ho jamming lia hlokahala. Li-valve tsa heke tse tšoanang tsa li-slide hangata ke khetho e ntle maemong a joalo, kaha motsamao oa bona o ts'oanang o lumella ho feta ha likaroloana. Setsing sa ho hlatsoa mashala, moo metsi a nang le mashala a mashala a hlokang ho laoloa, ho ka sebelisoa valve ea heke e ts'oanang ea li-slide e nang le seaparo se thibelang ho apara.

Mocheso oa Mokelikeli

Lisebelisoa tsa Cryogenic: Bakeng sa maro a Cryogenic (ka tlase - 29 ° C), lisebelisoa tse khethehileng li hlokoa ho thibela embrittlement. Li-valve tse entsoeng ka litšepe tse hanyetsanang tsa Cryogenic, tse kang ASTM A352 grade LF2 kapa LF3, li sebelisoa hangata. Lits'ebetsong tsa cryogenic, joalo ka polokelo le lipalangoang tsa khase ea tlhaho e qhibilihisitsoeng (LNG), li-valve tsena tsa liheke tsa Cryogenic li netefatsa ts'ebetso e bolokehileng.

Lisebelisoa tsa Mocheso o Phahameng: Ha mocheso oa mokelikeli o phahame (ka holimo ho 120 ° C), lisebelisoa tse ka bolokang thepa ea tsona ea mochine mocheso o phahameng oa hlokahala. Ho ka sebelisoa litšepe tse nang le chromium e phahameng le nickel, litšepe tsa alloy, esita le li-valve tse entsoeng ka ceramic. Lithapong tsa mouoane oa setsi sa motlakase, moo mocheso oa mouoane o ka fihlang likhatong tse makholo a 'maloa tsa Celsius, ho sebelisoa li-valve tsa heke tsa tšepe tse sa keneleng mocheso o phahameng.

Lisebelisoa tsa Valofo

Lisebelisoa tsa tšepe

Letsoele la ho lahla: Cast iron ke thepa e theko e tlaase e sebelisoang hangata lits'ebetsong tse nang le khatello e tlase le tse sa senyeng. E na le thepa e ntle ea ho lahla, e lumellang ho hlahisa libopeho tse rarahaneng tsa li-valve. Leha ho le joalo, e batla e brittle 'me e ka' na ea se ke ea tšoanela lisebelisoa tsa khatello e phahameng kapa mocheso o phahameng. Hangata li-valve tsa liheke tsa tšepe li sebelisoa litsing tsa phepelo ea metsi ea khoebo ea bolulo le tse nyane.

Steel Steel: Tšepe ea carbon e sebelisoa haholo lits'ebetsong tsa indasteri ka lebaka la thepa ea eona e ntle ea mochini le litšenyehelo tse tlase. E khona ho mamella likhatello le mocheso o itekanetseng. Li-valve tsa heke ea tšepe ea carbon li loketse lits'ebetso tse joalo ka liphaephe tse akaretsang tsa indasteri, libaka tsa ho hloekisa metsi, le mehala ea ho bokella oli le khase. Ka mohlala, liphaepheng tsa metsi a hloekileng tsa setsi sa ho hloekisa metsi, li-valve tsa heke ea carbon-steel li ka sebelisoa ho laola phallo ea metsi.

Ts'epe e sa beng le mabali: Tšepe e sa hloekang e fana ka khanyetso e ntle ea kutu, e etsa hore e tšoanelehe bakeng sa lits'ebetso moo mokelikeli o senyang kapa moo bohloeki bo leng teng. Ho na le limaraka tse fapaneng tsa tšepe e sa hloekang, joalo ka 304, 316, le 316L. Kereiti ea 304 e loketse lits'ebetso tsa kakaretso tse hananang le kutu, ha 316 le 316L li hanyetsana le ho bola ho bakoang ke chloride 'me hangata li sebelisoa metsing le ts'ebetsong ea lik'hemik'hale. Setsing sa meriana, moo maro a lokelang ho bolokoa hore a se ke a silafala 'me a ka 'na a e-ba le lintho tse senyang, ho sebelisoa li-valve tsa menyako ea tšepe e sa hloekang.

Steel Alloy: Litšepe tsa alloy li sebelisoa lits'ebetsong tse hlokang matla a phahameng, ho hanyetsa mocheso o phahameng, kapa khanyetso e matlafalitsoeng ea kutu. Hangata li sebelisoa maemong a khatello e phahameng le mocheso o phahameng, joalo ka lifemeng tse fehlang motlakase le moo ho hloekisoang oli. Ka mohlala, lithapong tsa mouoane tse matla haholo tsa setsi sa motlakase, li-valve tsa heke ea alloy-steel tse nang le metsoako e itseng ea alloy li sebelisoa ho mamella maemo a feteletseng a ts'ebetso.