Lintlha tsa bohlokoa tsa khetho ea li-valve li akaretsoa

Lintlha tsa bohlokoa tsa khetho ea li-valve li akaretsoa

Boholo ba mecha ea phatlalatso ea lisebelisoa tsa tlhahiso ea lik'hemik'hale e na le litšobotsi tsa chefo e phahameng, e tukang, e phatlohang le e senyang. Maemo a ho sebetsa a rarahane ebile a thata, 'me mocheso oa ts'ebetso le khatello li phahame. Hang ha valve e hlōleha, leseli le tla lebisa ho lutla ha mahareng, boima bo tla lebisa ho koaloa ha sesebelisoa, esita le ho baka likotsi tse mpe. Ka hona, khetho ea saense le e utloahalang ea valve e ke ke ea fokotsa litšenyehelo tsa kaho ea sesebelisoa feela, empa hape e netefatsa ts'ebetso e sireletsehileng ea tlhahiso. Ha re bue kakhetho ea valve!
Boholo ba mecha ea phatlalatso ea lisebelisoa tsa tlhahiso ea lik'hemik'hale e na le litšobotsi tsa chefo e phahameng, e tukang, e phatlohang le e senyang. Maemo a ho sebetsa a rarahane ebile a thata, 'me mocheso oa ts'ebetso le khatello li phahame. Hang ha valve e hlōleha, leseli le tla lebisa ho lutla ha mahareng, boima bo tla lebisa ho koaloa ha sesebelisoa, esita le ho baka likotsi tse mpe. Ka hona, khetho ea saense le e utloahalang ea valve e ke ke ea fokotsa litšenyehelo tsa kaho ea sesebelisoa feela, empa hape e netefatsa ts'ebetso e sireletsehileng ea tlhahiso. Ha re bue ka khetho ea li-valve!
Lintlha tsa bohlokoa tsa khetho ea li-valve
1 Belofo e hlakileng ka har'a sesebelisoa kapa tšebeliso ea sesebelisoa
Etsa qeto ea maemo a sebetsang a valve: mofuta oa sebaka se sebetsang, khatello ea ho sebetsa, mocheso oa ho sebetsa le mokhoa oa ho laola ts'ebetso.
Khetha mofuta o nepahetseng oa valve
Khetho e nepahetseng ea mofuta oa valve e itšetlehile ka moqapi oa ts'ebetso eohle ea tlhahiso, ho utloisisa ka botlalo maemo a ts'ebetso e le ntho e hlokahalang, ha ho khethoa mofuta oa valve, moqapi o lokela ho qala ka ho tseba litšobotsi tsa sebopeho le ts'ebetso ea valve ka 'ngoe.
Etsa qeto ea ho hokahanya ha valve
Ka khokahanyo threaded, flange kgokelo, tjheseletsa pheletsong kgokelo, mefuta e 'meli ea pele e tloaelehileng. Li-valve tse nang le likhoele ke li-valve tse nang le bophara bo ka tlase ho 50mm. Haeba boholo ba bophara bo le boholo haholo, ho kenya le ho tiisa khokahano ho thata haholo.
Li-valve tse nang le li-flanged li bonolo ho kenya le ho li tlosa, empa li ngata haholo ebile li theko e boima ho feta li-valve tse nang le khoele, kahoo li loketse ho hokahanya liphaephe tsa boholo bo fapaneng le likhatello.
Khokahano ea welded e ka tšeptjoa ho feta khokahanyo ea flanged, e loketseng maemo a ho jara. Empa ho qhaqhoa le ho kenya li-valve ho thata ho feta, kahoo tšebeliso ea eona e atisa ho sebetsa ka nako e telele e ka tšeptjoang, kapa ho sebelisa maemo a ho laela, linako tse phahameng tsa mocheso.
4. Khetho ea lisebelisoa tsa valve
Khetho ea khetla ea li-valve, likarolo tse ka hare le lisebelisoa tsa ho tiisa holim'a metsi, ntle le ho nahana ka thepa ea 'mele ea mochine o sebetsang (mocheso, khatello) le thepa ea lik'hemik'hale (corrosion), e boetse e lokela ho tseba boemo ba bohloeki ba mecha ea litaba (ka kapa ntle le likaroloana tse tiileng. ), ho ekelletsa moo, empa hape o bua ka dipehelo tse amehang tsa mmuso le tshebediso ya mafapha.
Khetho e nepahetseng le e utloahalang ea thepa ea valve e ka fumana bophelo bo botle ba tšebeletso ea moruo le ts'ebetso e ntle ea valve. Taelo ea khetho ea 'mele oa valve: tšepe e entsoeng ka tšepe - tšepe ea carbon - tšepe e sa hloekang, mokhoa oa ho khetha lesale la ho tiisa: rabara - koporo - tšepe ea alloy -F4.
Tse ling tse hlano
HO EKETSEHILENG, THE FLOW RATE LE PRESSURE LEVEL EA FLUID PHALLANG KA VALVE E TSHWANETSE HO HLOMELA, MME SEHLOPHA se loketseng se lokela ho kgethwa ho sebediswa tlhahisoleseding e teng (mohlala, lethathamo la lihlahisoa tsa valve, sampole ea sehlahisoa sa valve, joalo-joalo).
Tlhaloso ea khetho ea mofuta o tloaelehileng oa valve
Tlhaloso ea khetho ea mofuta oa li-valve tsa heke
Ka kakaretso, pele ho lokela ho fanoa ka li-valve tsa heke. Belofo ea heke ho phaella ho e loketseng bakeng sa mouoane, oli le mecha e meng ea litaba, empa hape e sebetsa ho na le granular e tiileng le viscosity ea seaplane, 'me e loketse bakeng sa li-vents le li-valve tse tlaase tsa vacuum system. Bakeng sa sehare se nang le likaroloana tse tiileng, 'mele oa valve ea heke o tla fuoa lesoba le le leng kapa tse peli tsa ho hloekisa. Bakeng sa mocheso o tlase oa mocheso, mocheso o tlase oa li-valve tsa heke o lokela ho khethoa.
2. Tlhaloso ea khetho ea li-valve tse khaotsoeng
Globe belofo ke a loketse bakeng sa ditlhoko mokelikeli ho hanyetsa ha ba thata ka phaephe, ke hore, tahlehelo khatello ea e sa nkoa, 'me mocheso o phahameng, phaephe e phahameng khatello ea mahareng kapa sesebelisoa, a loketse bakeng sa DN Sephahla se senyenyane se ka khetha valve ea lefats'e, joalo ka valve ea nale, valve ea lisebelisoa, sampling valve, valve gauge valve, joalo-joalo;
Valve ea lefats'e e na le taolo ea phallo kapa taolo ea khatello, empa ho nepahala ha phetoho ha ho phahame, 'me bophara ba phala bo batla bo le nyane, ho loketse 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; Empa 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, 'me ha ea lokela ho sebelisoa e le valve ea moea le valve ea tsamaiso e tlaase ea vacuum.
3. Tlhaloso ea khetho ea valve ea bolo
Ball valve e loketse mocheso o tlase, khatello e phahameng, viscosity medium. Li-valve tse ngata tsa bolo li ka sebelisoa ka mokhoa o mahareng le likaroloana tse tiileng tse emisitsoeng, ho ea ka litlhoko tsa thepa ea ho tiisa li ka boela tsa sebelisoa ka phofo le mecha ea granular;
Sesepa sa bolo ea li-channel ha se tšoanelehe bakeng sa taolo ea phallo, empa se loketse liketsahalo tse potlakileng tsa ho bula le ho koala, ho fihlella habonolo ho khaotsoe ka tšohanyetso; Hangata ts'ebetsong e tiileng ea ho tiisa, ho roala, ho fokotseha ha mocha, ho bula le ho koala ka potlako, ho fokotsa khatello e matla (phapang e kholo ea khatello), lerata le tlaase, ketsahalo ea gasification, torque e nyenyane ea ts'ebetso, ho hanyetsa metsi, tšebeliso ea li-valve tsa bolo e khothalletsoa.
Balofo ea bolo e loketse sebopeho sa leseli, ho fokotsa khatello e tlase, mecha ea phatlalatso e senyang; Balofo ea bolo kapa mocheso o tlase, seaplane sa cryogenic sa belofo e loketseng, mocheso o tlase oa tsamaiso ea liphaephe le sesebelisoa, o lokela ho khethoa ka sekoaelo se tlase sa mocheso oa bolo;
Thepa e phaphametseng ea li-valve tsa bolo e lokela ho nka boima ba bolo, 'me sebaka se sebetsang, se seholo sa caliber ball valve se sebetsang se hloka matla a maholo, DN≥
200mm ball valve e lokela ho khetha foromo ea phetisetso ea lisebelisoa tsa seboko; 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, phaephe ea mecha ea phatlalatso e tukang, e lokela ho ba le mollo, sebopeho sa anti-static.
4. Tlhaloso ea khetho ea valve ea throttle
Li-valve tsa throttle li loketse mocheso o tlase oa mocheso, likhatello tse phahameng tsa khatello, tse loketseng tlhokahalo ea ho fetola phallo le likarolo tsa khatello, eseng bakeng sa viscosity le tse nang le likaroloana tse tiileng tsa mahareng, ha lia lokela ho sebelisoa e le valve thibela.
Tlhaloso ea khetho ea mofuta oa plug valve
Plug valve e loketse liketsahalo tsa ho bula le ho koala ka potlako, ka kakaretso 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.
Tlhaloso ea khetho ea mofuta oa valve ea serurubele
Butterfly valve e loketse bophara bo boholo (joalo ka DN> 600mm) le litlhoko tse khutšoane tsa bolelele ba sebopeho, le tlhoko ea taolo ea phallo le litlhoko tse potlakileng tsa ho bula le ho koala, tse sebelisoang hangata bakeng sa mocheso ≤.
80 ℃, khatello ≤1.0MPa metsi, oli le moea o hatelitsoeng le mecha e meng ea litaba; Ka lebaka la belofo ea serurubele e amanang le belofo ea heke, tahlehelo ea khatello ea valve e batla e le khōlō, kahoo valve ea serurubele e loketse litlhoko tsa tahlehelo ea khatello ha e thata tsamaisong ea lipeipi.
Tlhaloso ea khetho ea valve ea ho hlahloba
Li-valve tsa ho hlahloba hangata li loketse mecha ea litaba e hloekileng, ha ea lokela ho sebelisoa sebakeng se nang le likaroloana tse tiileng le viscosity e kholo. Ha ≤40mm, ho eletsoa hore u sebelise valve ea ho hlahloba ho phahamisa (* e lumelletsoe ho kenngoa ka pipeline e otlolohileng); Ha DN = 50 ~ 400mm, ho loketse ho sebelisa swing mofuta oa ho phahamisa valve (ka phaephe e tšekaletseng le e otlolohileng e ka kenngoa, joalo ka e kentsoe phaepheng e otlolohileng, phallo e mahareng ho tloha tlase 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 mofuta oa clamp; Swing check valve e ka etsoa ka khatello e phahameng haholo ea ho sebetsa, PN e ka fihla ho 42MPa, ho ea ka khetla le thepa ea tiiso e ka sebelisoa sebakeng leha e le sefe sa ho sebetsa le mocheso ofe kapa ofe oa mocheso o sebetsang.
Sebaka se bohareng ke metsi, mouoane, khase, sepakapaka se senyang, oli, meriana, joalo-joalo Mocheso o sebetsang oa mocheso o pakeng tsa -196 ℃ le 800℃.
Tlhaloso ea khetho ea valve ea diaphragm
Diaphragm valve e loketse ho sebetsa mocheso o ka tlase ho 200 ℃, khatello e ka tlase ho oli ea 1.0MPa, metsi, acid e bohareng le e bohareng e nang le taba 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, khetha valve ea weir diaphragm ho bua ka tafole ea eona ea phallo; Mokelikeli oa li-viscous, seretse sa samente le sebaka sa pula se lokela ho khethoa ka kotloloho ka valve ea diaphragm; Ntle le haeba ho boletsoe ka tsela e 'ngoe, valve ea diaphragm ha ea lokela ho sebelisoa mehala ea vacuum le lisebelisoa tsa vacuum.