Li-valve tsa serurubele ke lisebelisoa tsa ho laola phallo ea kotara tse sebelisang diski ea tšepe e potolohang ho potoloha axis ea stem e tsitsitseng. Ke li-valve tse laolang phallo tse sebetsang ka potlako tse lumellang likhato tse 90 tsa ho potoloha ho tloha ho bula ka botlalo ho isa boemong bo koetsoeng.
Ha disc e le perpendicular ho ea bohareng ba pipe, valve e sebakeng se koetsoeng. mochine oa ho laola (disk) o batla o lekana le bophara bo ka hare ba phala e haufi.
Li-valve tsena li tla ka boholo bo fapaneng le meralo e khethollang ts'ebetso ea tsona lits'ebetsong tsa ts'ebetso ea indasteri; lisebelisoa tsa li-valve tsa bohloeki; litšebeletso tsa mollo; mekhoa ea ho futhumatsa, ea ventilation, le air conditioning (HVAC); le li-slurries.Ha re bua ka mokhoa o pharaletseng, li-valve tsa serurubele li bohlokoa bakeng sa taolo ea phallo le ho itšehla thajana.
Ho tsamaea ha disc ho qala, ho liehisa kapa ho emisa ho phalla ha metsi e 'ngoe ea litšobotsi tse latelang tsa phallo:
" Hoo e ka bang moeli - tekanyo ea ho phalla e lekana le ho sisinyeha ha angular ea disc. Ka mohlala, ha disc e bulehile ka 40%, phallo ke 40% ea boholo.Tlhaloso ena ea phallo e tloaelehile ka li-valve tsa serurubele tse sebetsang hantle.
" Ho bula ka potlako - Tšobotsi ena ea phallo e bontšoa ha ho sebelisoa li-valve tsa serurubele tse lutseng tse tsitsitseng. Lebelo la phallo ea mokelikeli le phahameng ka ho fetisisa ha disc e tloha sebakeng se koetsoeng. Ha valve e atamela sebaka se bulehileng ka ho feletseng, phallo e theoha ka mokhoa o tsitsitseng ka phetoho e nyenyane.
" Phallo e Isolation - Li-valve tsa Butterfly li ka fana ka tšebeletso ea ho tima / ho tima metsi. Ho itšehla thajana hoa hlokahala neng kapa neng ha karolo e 'ngoe ea tsamaiso ea liphaephe e hloka tlhokomelo.
Li-valve tsa butterfly li loketse likopo tse fapaneng ka lebaka la moralo oa tsona o bobebe le ts'ebetso e potlakileng.Li-valve tsa serurubele tse lutseng li loketse mocheso o tlase, lits'ebetso tse tlase tsa khatello, ha li-valve tsa serurubele tse lutseng ka tšepe li na le bokhoni bo botle ba ho tiisa ha li sebetsana le maemo a mokelikeli a thata.Ts'ebetso ena e sebetsa. ka mocheso o phahameng le likhatello 'me e fetisa maro a viscous kapa a senyang.Melemo ea li-valve tsa serurubele e kenyelletsa:
"Li-valve tse bobebe le tse kopanetsoeng" Li-valve tsa butterfly li sebelisa li-disc tsa tšepe tse tšesaane e le mokhoa oa ho laola phallo. Li-discs li nyenyane 'me li nka sebaka se senyenyane, empa li matla ka ho lekaneng ho laola ho phalla ha metsi. litsamaiso libakeng tse moqotetsane.Liphaephe tse bophara bo boholo li hloka li-valve tse khōloanyane tse sebelisang thepa e ngata ea ho etsa lintho, ho eketsa litšenyehelo.Serurubele sa serurubele se tla ba sa theko e tlaase ho feta valve ea bolo ea boholo bo lekanang hobane e sebelisa thepa e fokolang ho e etsa.
" Ho Tia ka Potlako le ka Mokhoa o Sebetsang - Li-valve tsa butterfly li fana ka tiiso e potlakileng ha li sebetsa, li etsa hore e be tse loketseng bakeng sa lits'ebetso tse phahameng tsa phallo e nepahetseng. Litšobotsi tsa ho tiisa tsa valve ea serurubele li itšetlehile ka mofuta oa disk offset le mofuta oa thepa ea setulo. A zero offset butterfly valve e tla fana ka tiiso e lekaneng bakeng sa lits'ebetso tsa khatello e tlaase - ho fihlela ho lik'hilograma tse 250 ka lisenthimithara tse lisekoere (psi) .The valve double offset e fana ka tiiso e babatsehang bakeng sa lits'ebetso ho fihlela ho 1,440 psi. Li-valve tse tharo tsa offset li fana ka tiiso bakeng sa lits'ebetso tsa phallo ho feta 1,440 psi.
" Ho theoha ha Khatello e tlaase le ho Pholisoa ha Khatello e Phahameng - Li-valve tsa Butterfly li na le khatello e tlaase ea khatello ho sa tsotellehe hore disc e lula e le teng ka har'a mokelikeli. Ho theoha ha khatello e tlaase ho bohlokoa ho laola litlhoko tsa ho phunya le matla a tsamaiso. Li-valve tsa butterfly li etselitsoe ho lumella mokelikeli ho khutlisa matla kapele ka mor'a hore a tlohe belofo.
" Litlhoko tsa tlhokomelo e tlaase - Li-valve tsa Butterfly li na le likarolo tse fokolang tsa ka hare. Ha li na lipokotho tse ka tšoarang metsi kapa lithōle, ka hona, li hloka ts'ebetso e fokolang ea tlhokomelo. joalo ka ho tjheseletsa ho hlokahala.
"Ts'ebetso e Bonolo - Ka lebaka la boholo ba bona bo kopanetsoeng le boima bo bobebe, li-valve tsa serurubele li hloka torque e batlang e le tlaase ho sebetsa. Li-disk tsa tšepe tse nyenyane li sebelisa matla a fokolang ho hlōla ho hanyetsa ha metsi. fana ka torque e lekaneng bakeng sa ts'ebetso ea bona.Sena se fetolela litšenyehelo tse tlaase tsa ts'ebetso - li-activator tse nyenyane li sebelisa matla a fokolang 'me li theko e tlaase ho eketsa valve.
" Li-valve tsa butterfly li ka 'na tsa hlaseloa ke cavitation le phallo e koetsoeng - sebakeng se bulehileng, valve ha e fane ka sekepe se feletseng. Ho ba teng ha disc ka tsela ea phallo ea mokelikeli ho mpefatsa ho bokellana ha lithōle tse pota-potileng valve, ho eketsa monyetla oa ho ba le cavitation. Li-valve tsa bolo ke mokhoa o mong bakeng sa lits'ebetso tsa mokelikeli tse hlokang likou tse felletseng.
" Ho bola ka potlako litšebeletsong tsa mokelikeli oa viscous - maro a phallang li-valve tsa serurubele ha a ntse a phalla ho tsona. ho hanyetsa ho feta li-valve tsa serurubele.
" Ha e tšoanelehe bakeng sa khatello e phahameng ea khatello - valve e lokela ho sebelisoa feela bakeng sa ho phunya lits'ebetsong tse tlaase tsa khatello, e lekanyelitsoeng ho likhato tse 30 ho isa ho 80 tsa ho bula.
Sephahla sa valve sebakeng se bulehileng ka ho feletseng se thibela ho hloekisoa ha tsamaiso le ho thibela pigging ea mola o nang le valve ea serurubele.
Boemo ba ho kenya valve ea serurubele hangata bo pakeng tsa li-flanges. Li-valve tsa butterfly li lokela ho kenngoa bonyane li-diameter tse 'nè ho isa ho tse tšeletseng tsa liphaephe tse tsoang ho li-nozzles tse ntšang metsi, li-elbows, kapa makala ho fokotsa liphello tsa moferefere.
Pele o kenya, liphaephe tse hloekileng 'me u hlahlobe li-flanges bakeng sa boreleli / flatness.Etsa bonnete ba hore liphaephe li lumellane.Ha u kenya valve, boloka disc e le sebakeng se bulehileng ka mokhoa o itseng. Li-flanges li ka' na tsa hloka ho atolosoa ho qoba tšenyo e ka holim'a setulo.Sebelisa sefofane likoti kapa li-slings ho pota-pota 'mele oa valve ha u phahamisa kapa u tsamaisa valve.Qoba ho phahamisa valve ho actuator kapa opareitara ea eona.
Lokisetsa valve le bolt ea ho kenya ea phala e haufi. Letsoho le tiise liboutu, ebe u sebelisa sekontiri sa torque ho tiisa liboutu butle-butle le ka ho lekana ho lekanya ho hlaka pakeng tsa tsona le flange. wrench ea torque ho tiisa liboutu ho bona hore na ha ho na tsitsipano ho liboutu.
Tlhokomelo ea li-valve e kenyelletsa ho tlotsa likarolo tsa mochini, ho hlahloba le ho lokisoa ha li-actuator.Li-valve tse hlokang ho tlotsa nako le nako li kenyelletsa lisebelisoa tse tlotsitsoeng.Mafura a lekaneng a lithium a lokela ho sebelisoa ka linako tse khothalletsoang ho fokotsa mafome le ho senya.
Hape ke habohlokoa hore kamehla u hlahlobe actuator ho fumana matšoao leha e le afe a ho senyeha kapa ho senyeha ha likhokahano tsa motlakase, pneumatic kapa hydraulic tse ka amang ts'ebetso ea valve.
Ho phaella moo, mosebedisi o lokela ho hloekisa likarolo tsohle tsa valve ea serurubele ka lubricant e thehiloeng ka silicone.Setulo se lokela ho hlahlojoa bakeng sa matšoao leha e le afe a ho senyeha le ho nkeloa sebaka ha ho hlokahala.Li-disks tsa valve tsa butterfly tse sebelisoang lits'ebetsong tse omeletseng tse kang tšebeletso ea moea e hatelitsoeng e hloka lubrication. Li-valve tsa serurubele tse potolohang khafetsa li lokela ho sebetsoa bonyane hang ka khoeli.
Khetho ea li-valve e ka 'na ea bonahala e le khetho le mosebetsi oa ho nyalana, empa ho na le lintlha tse' maloa tsa tekheniki tse lokelang ho nahanoa. Ea pele e kenyelletsa ho utloisisa mofuta oa taolo ea mokelikeli o hlokahalang le mofuta oa mokelikeli oa tšebeletso.Litšebeletso tsa mokelikeli o senyang li hloka li-valve tse entsoeng ka tšepe e sa hloekang, nichrome, kapa lisebelisoa tse ling tse hananang le ho bola.
Basebedisi ba lokela ho nahana ka matla, khatello le liphetoho tsa mocheso oa tsamaiso ea liphaephe le boemo ba ho iketsetsa lintho tse hlokahalang.Le hoja li-valve tsa butterfly li fana ka taolo e nepahetseng ea phallo, li theko e boima ho feta tse sebelisoang ka letsoho.Li-valve tsa butterfly ha li laolehe ebile ha li fane boemakepe bo tletseng.
Haeba mosebelisi a sa kholisehe ka ho lumellana ha lik'hemik'hale tsa ts'ebetso kapa khetho ea actuation, k'hamphani ea li-valve e tšoanelehang e ka thusa ho netefatsa khetho e nepahetseng.
Gilbert Welsford Jr. ke mothehi oa ValveMan le mohoebi oa Valve oa moloko oa boraro. Ho fumana boitsebiso bo eketsehileng, etela Valveman.com.
Nako ea poso: Mar-02-2022
