Litaba - Bafepedi ba 10 ba ka sehloohong ba Shutdown Valve lefatšeng ke bafe?

Bafepedi ba 10 ba ka sehloohong ba li-valve tse koalang ba kenyelletsa lik'hamphani tse latelang tse tsebahalang haholo

Emerson, USA:

Letšoao la Fisher tlas'a Emerson le shebane le li-valve tsa taolo ea ts'ebetso, tse sebelisoang haholo oli, khase, lik'hemik'hale le masimo a mang.

Schlumberger, USA:

Cameron tlas'a Schlumberger o fana ka li-valve le lisebelisoa tsa li-wellhead bakeng sa indasteri ea oli le khase.

Flowserve, USA:

E fana ka mefuta e fapaneng ea li-valve tsa indasteri, ho kenyeletsoa li-valve tsa taolo, li-valve tsa bolo, li-valve tsa serurubele, jj., tse sebeletsang indasteri ea matla, lik'hemik'hale le kalafo ea metsi.

Tyco International, USA:

Letšoao la eona la Tyco Valves & Controls le fana ka li-valve bakeng sa ts'ireletso ea mollo, lits'ebetso tsa indasteri le tsa khoebo.

KITZ, Japane:

E mong oa bahlahisi ba li-valve ba baholo ka ho fetisisa Japane, ka lihlahisoa tse koahelang masimo a indasteri, a kaho le a sechaba.

IMI, UK:

Boenjiniere ba Bohlokoa ba IMI bo shebana le li-valve tsa indasteri tsa maemo a holimo, tse sebeletsang liindasteri tsa matla, matla le lik'hemik'hale.

Crane, USA:

Letšoao la eona la Crane ChemPharma & Energy le fana ka litharollo tsa li-valve bakeng sa liindasteri tsa lik'hemik'hale, petrochemical le matla.

Velan, Canada:

E shebane le li-valve tsa indasteri, ho kenyeletsoa li-valve tsa heke, li-valve tsa bolo, li-valve tsa serurubele, jj.

KSB, Jeremane:

E fana ka ditharollo tsa pompo le di-valve, tse sebediswang haholo kalafong ya metsi, enejing le masimong a diindasteri.

Sehlopha sa Weir, UK:

Letšoao la eona la Weir Valves & Controls le shebane le li-valve tse sebetsang hantle indastering ea merafo, motlakase le oli le khase.

Malebela:NMoetsi oa Valve ea SWke mofani oa li-valve tsa ho thiba o tsebahalang Chaena. Ba na le fektheri ea bona ea 'mele ea li-valve tsa ho thiba le fektheri ea li-actuator tsa li-valve tsa ho thiba. Ba ka u fa tšehetso ea botekgeniki ea litsebi le litheko tsa fektheri ea li-valve tsa ho thiba.

Valve ea ho Koala (SDV)

Valve ea ho Thibela (SDV) ke eng?

Valve e timang ke mofuta oa actuator tsamaisong ea othomathike. E na le actuator ea diaphragm ea pneumatic ea li-spring tse ngata kapa actuator ea piston e phaphametseng le valve e laolang. E sebelisoa haholo ho khaola kapa ho hokahanya mokelikeli ka potlako ka har'a phaephe (joalo ka khase, moea o tukang, moea o batang le khase ea flue, jj.). E sebelisoa haholo lits'ebetsong tsa taolo ea polokeho ea indasteri le ts'ebetsong ea likotsi tsa tšohanyetso.

Mosebetsi oa mantlha le Molao-motheo oa ho Sebetsa oa Shutdown Valve

Mosebetsi oa mantlha oa valve ea ho tima ke ho khaola, ho hokahanya kapa ho chencha mokelikeli ka har'a phaephe ka potlako ka ho amohela lets'oao la sesebelisoa se laolang (joalo ka alamo ea khatello, mocheso kapa ho lutla). Mokhoa oa eona o tloaelehileng oa ts'ebetso o kenyelletsa:

Sesosa sa Signal:Ha sensor e lemoha ntho e sa tloaelehang (joalo ka ho dutla ha khase, khatello e fetang moeli), lets'oao le fetisetsoa ho actuator.

Karabelo ea mechini:Diaphragm ea pneumatic kapa mokhoa oa piston o khanna 'mele oa valve ho tsamaea (joalo ka valve ea bolo, valve ea setulo se le seng), ho fetola boemo ba ho buleha le ho koala ha valve.

Senotlolo sa polokeho:Kamora hore valve ea ho koala ha tšohanyetso e koaloe, hangata e etselitsoe ho its'oara ho qoba ho buleha ka phoso.

Mefuta ea mantlha le maemo a ts'ebeliso ea valve ea ho tima

Li-valve tsa ho timaLi ka aroloa ka mefuta e latelang e tloaelehileng ho latela sebopeho le morero oa tsona:

‌Li-valve tse tloaelehileng tsa ho koala:e sebediswa bakeng sa taolo ya tshebetso ya indasteri (jwalo ka indasteri ya dikhemikhale le metallurgy), haholoholo e sebedisa valve ya bolo kapa sebopeho sa valve ya letsoho ho fihlella taolo e mahareng ya ho tima.

Valve ea ho koala ka tšohanyetso:e inehetseng ho litsamaiso tsa polokeho (tse kang liphaephe tsa khase le litsamaiso tsa SIS), ka lebelo le potlakileng la karabelo le ts'ebetso ea ho itlama ho thibela likotsi ho atoloha.

Valve ea ho koala diaphragm ea pneumatic:valve e laoloa ke diaphragm e tsamaisoang ke khatello ea moea, e loketseng maemo a taolo ea othomathike a hole (joalo ka liindasteri tsa oli le motlakase).