2.5 valve ea plug

Plug valve ke valve e sebelisang 'mele oa plug o nang le lesoba joalo ka karolo e bulang le e koalang,' me 'mele oa plug o potoloha le kutu ho fihlela ho bula le ho koala. Sephahla sa plug se na le sebopeho se bonolo, ho bula le ho koala ka potlako, ho sebetsa habonolo, ho hanyetsa mokelikeli o monyenyane, likarolo tse fokolang le boima bo bobebe. Li-valve tsa plug li fumaneha ka mefuta e otlolohileng, ea litsela tse tharo le tse 'nè. Sephahla sa plug se otlolohileng se sebelisetsoa ho khaola sehare, 'me li-valve tsa plug tse litsela tse tharo le tse' nè li sebelisetsoa ho fetola tsela ea bohareng kapa ho khelosa bohareng.

2.6Butterfly valve

Butterfly valve ke poleiti ea serurubele e potolohang 90 ° ho potoloha axis e tsitsitseng 'meleng oa valve ho phethela mosebetsi oa ho bula le ho koala. Li-valve tsa serurubele li nyane ka boholo, boima bo bobebe ebile li bonolo ka sebopeho, li na le likarolo tse 'maloa feela.

'Me e ka buloa le ho koaloa kapele ka ho potoloha 90 °, e leng bonolo ho e sebetsa. Ha valve ea serurubele e le boemong bo bulehileng ka ho feletseng, botenya ba poleiti ea serurubele ke eona feela khanyetso ha sehare se phalla 'meleng oa valve. Ka hona, khatello ea khatello e hlahisoang ke valve e nyenyane haholo, kahoo e na le litšobotsi tse ntle tsa ho laola phallo. Li-valve tsa butterfly li arotsoe ka mefuta e 'meli ea ho tiisa: elastic soft seal le metal hard seal. Elastic sealing valve, selikalikoe se koalang se ka kenngoa 'meleng oa li-valve kapa sa hokelloa moeling oa poleiti ea serurubele. E na le ts'ebetso e ntle ea ho tiisa 'me e ka sebelisoa bakeng sa ho phunya, liphaephe tsa vacuum tse mahareng le mecha ea litaba e senyang. Li-valve tse nang le litiiso tsa tšepe hangata li na le bophelo bo bolelele ba ts'ebeletso ho feta li-valve tse nang le litiiso tse rekerehang, empa ho thata ho fumana tiiso e felletseng. Hangata li sebelisoa maemong ao phallo le khatello ea khatello li fetohang haholo 'me ho hlokahala ts'ebetso e ntle ea throttling. Litiiso tsa tšepe li ka ikamahanya le mocheso o phahameng oa ts'ebetso, athe litiiso tse rekerehang li na le monyetla oa ho lekanyetsoa ke mocheso.

2.7Hlahloba valve

Cheke valve ke valve e ka thibelang ho phalla ha metsi ka morao. Diski ea valve ea ho hlahloba e bula tlas'a ketso ea khatello ea mokelikeli, 'me mokelikeli o phalla ho tloha ka lehlakoreng le kenang ho ea lehlakoreng la ho tsoa. Ha khatello e lehlakoreng la ho kena e le tlase ho feta lehlakoreng la ho tsoa, ​​​​valve disc e koala ka boeona tlas'a ketso ea phapang ea khatello ea mokelikeli, matla a eona a khoheli le lintlha tse ling ho thibela mokelikeli ho khutlela morao. Ho ea ka sebopeho sa sebopeho, e ka aroloa ka valve ea ho lekola le ea swing check valve. Mofuta oa ho phahamisa o na le tiiso e ntle le ho hanyetsa mokelikeli ho feta mofuta oa swing. Bakeng sa ho kenella ha pompo ea ho hula pompo, valve e ka tlase e lokela ho sebelisoa. Mosebetsi oa eona ke ho tlatsa pompo e kenang pompo ka metsi pele o qala pompo; ka mor'a ho emisa pompo, boloka phala e kenang le 'mele oa pompo o tletse metsi ho itokisetsa ho qala hape. Belofo e ka tlase hangata e kenngoa feela phala e emeng sebakeng sa pompo, 'me sehare se phalla ho tloha tlase ho ea holimo.

2.8Sekhahla sa diaphragm

Karolo e bulang le e koalang ea valve ea diaphragm ke diaphragm ea rabara, e pakeng tsa 'mele oa valve le sekoahelo sa valve.

Karolo e bohareng e hlahelletseng ea diaphragm e tsitsitsoe holim'a kutu ea valve, 'me setopo sa valve se kentsoe ka rabara. Kaha sehare ha se kene ka hare ho sekoahelo sa valve, sekhahla sa valve ha se hloke lebokose la ho kenya lintho. Valve ea diaphragm e na le sebopeho se bonolo, ts'ebetso e ntle ea ho tiisa, tlhokomelo e bonolo, le ho hanyetsa metsi a tlase. Li-valve tsa diaphragm li arotsoe ka mofuta oa weir, mofuta o otlolohileng, mofuta oa lehlakoreng le letona le mofuta oa phallo e tobileng.

3. Litaelo tsa khetho ea li-valve tse sebelisoang ka tloaelo

3.1 Litaelo tsa khetho ea li-valve tsa heke

Tlas'a maemo a tloaelehileng, li-valve tsa heke li lokela ho khethoa. Ntle le ho loketse bakeng sa mouoane, oli le mecha e meng ea litaba, li-valve tsa liheke li boetse li loketse mecha ea litaba e nang le li-granular solids le viscosity e phahameng, 'me e loketse li-valve ka li-venting le tsamaiso e tlaase ea vacuum. Bakeng sa mecha ea phatlalatso e nang le likaroloana tse tiileng, 'mele oa li-valve tsa heke o lokela ho ba le lesoba le le leng kapa tse peli tsa ho hloekisa. Bakeng sa mecha ea litaba ea mocheso o tlase, li-valve tsa heke tse khethehileng tsa mocheso o tlase li lokela ho khethoa.

3.2 Litaelo tsa khetho ea li-valve tsa ho emisa

Sesepa sa ho emisa se loketse liphaephe tse nang le litlhoko tsa lax ho hanyetsa mokelikeli, ke hore, tahlehelo ea khatello ha e nkoe e ngata, le liphaephe kapa lisebelisoa tse nang le mocheso o phahameng le khatello e phahameng ea litaba. E loketse liphaephe tsa mouoane le tse ling tse mahareng tse nang le DN <200mm; li-valve tse nyane li ka sebelisa li-valve tse khaotsoeng. Li-valve, tse kang li-valve tsa nale, li-valve tsa lisebelisoa, li-valve tsa sampling, li-valve tsa khatello ea khatello, joalo-joalo; li-valve tsa ho emisa li na le phetoho ea phallo kapa khatello ea khatello, empa ho nepahala ha ho lokisoa ha ho hlokehe, 'me bophara ba liphaephe bo batla bo le nyane, ka hona ho lokela ho sebelisoa valve ea ho emisa kapa e otlang; Bakeng sa mecha ea litaba e chefo haholo, ho lokela ho sebelisoa valve e emisang e koetsoeng; leha ho le joalo, valve ea ho emisa ha ea lokela ho sebelisoa bakeng sa mecha ea litaba e nang le viscosity e phahameng le mecha ea litaba e nang le likaroloana tse atisang ho senyeha, leha e le hore e se ke ea sebelisoa e le valve ea moea le valve tsamaisong e tlaase ea vacuum.

3.3 Litaelo tsa khetho ea valve ea bolo

Li-valve tsa bolo li loketse mecha ea litaba ea mocheso o tlase, khatello e phahameng le e phahameng ea viscosity. Li-valve tse ngata tsa bolo li ka sebelisoa mecheng ea litaba tse nang le likaroloana tse tiileng tse emisitsoeng, hape li ka sebelisoa mecheng ea phofo le ea granular ho latela litlhoko tsa thepa ea ho tiisa; li-valve tsa bolo ea li-channel ha li tšoanelehe bakeng sa taolo ea phallo, empa li loketse liketsahalo tse hlokang ho bula le ho koala ka potlako, e leng bonolo ho e sebelisa. Khaollo ea maemo a tšohanyetso likotsing; hangata ho khothaletsoa liphaepheng tse nang le ts'ebetso e tiileng ea ho tiisa, ho roala, likanale tsa ho honyela, metsamao e potlakileng ea ho bula le ho koala, khatello e phahameng ea khatello (phapang e kholo ea khatello), lerata le tlase, ketsahalo ea gasification, torque e nyane ea ts'ebetso, le ho hanyetsa mokelikeli o monyane. Sebelisa li-valve tsa bolo; li-valve tsa bolo li loketse meaho e bobebe, li-cut-offs tsa khatello e tlase, le mecha ea litaba e senyang; li-valve tsa bolo le tsona ke li-valve tse loketseng ka ho fetisisa bakeng sa mecha ea litaba ea mocheso o tlase le ea cryogenic. Bakeng sa lits'ebetso tsa liphaephe le lisebelisoa tse nang le mecha ea litaba ea mocheso o tlase, li-valve tsa bolo ea mocheso o tlase tse nang le li-valve li lokela ho sebelisoa; khetha Ha u sebelisa belofo ea bolo e phaphametseng, thepa ea eona ea setulo e lokela ho jara moroalo oa bolo le mochini o sebetsang. Li-valve tsa bolo ea bophara bo boholo li hloka matla a maholo nakong ea ts'ebetso. Li-valve tsa bolo tse nang le DN ≥ 200mm li lokela ho sebelisa phetiso ea lisebelisoa tsa seboko; li-valve tsa bolo tse tsitsitseng li loketse li-diameter tse kholoanyane le maemo a phahameng a khatello; ho phaella moo, li-valve tsa bolo tse sebelisoang liphaepheng tsa ts'ebetso bakeng sa lisebelisoa tse chefo haholo le mecha ea litaba e tukang e lokela ho ba le mehaho e thibelang mollo le e khahlanong le static.

3.4 Litaelo tsa khetho ea li-valve tsa Throttle

The valve throttle e loketse linako tseo mocheso o bohareng o leng tlaase le khatello e phahameng. E loketse likarolo tse hlokang ho fetola sekhahla sa phallo le khatello. Ha e loketse mecha ea litaba e nang le viscosity e phahameng le likaroloana tse tiileng, 'me ha e loketse ho sebelisoa e le valve ea ho itšehla thajana.

3.5 Litaelo tsa khetho ea valve ea plug

Plug valve e loketse liketsahalo tse hlokang ho buloa le ho koaloa kapele. Ka kakaretso ha e loketse mouoane le bohareng ka mocheso o phahameng. E sebelisoa bakeng sa mahareng ka mocheso o tlase le viscosity e phahameng, hape e loketse mahareng ka likaroloana tse emisitsoeng.

3.6 Litaelo tsa khetho ea valve ea butterfly

Li-valve tsa serurubele li loketse maemo a nang le li-diameter tse kholo (tse kang DN﹥600mm) le bolelele bo bokhutšoanyane ba sebopeho, hammoho le maemo ao ho oona ho hlokahalang ho fetola phallo le ho bula le ho koala ka potlako. Ka kakaretso li sebelisoa bakeng sa lihlahisoa tsa metsi, oli le compression ka mocheso ≤80 ° C le likhatello ≤1.0MPa. Moea le mecha ea phatlalatso e meng; hobane tahlehelo ea khatello ea li-valve tsa serurubele e batla e le kholo ha e bapisoa le li-valve tsa heke le li-valve tsa bolo, li-valve tsa serurubele li loketse lits'ebetso tsa liphaephe tse nang le litlhoko tse hlephileng tsa tahlehelo ea khatello.

3.7 Sheba litaelo tsa khetho ea li-valve

Li-valve tsa ho hlahloba hangata li loketse mecha ea litaba e hloekileng 'me ha li tšoanelehe bakeng sa mecha ea litaba e nang le likaroloana tse tiileng le viscosity e phahameng. Ha DN ≤ 40mm, ho lokela ho sebelisoa valve ea ho hlahloba ho phahamisa (e lumelloa feela ho kenngoa liphaepheng tse otlolohileng); ha DN = 50 ~ 400mm, ho lokela ho sebelisoa valve ea ho hlahloba phahamiso ea swing (e ka kenngoa liphaepheng tse peli tse otlolohileng le tse otlolohileng, Haeba e kentsoe phapeng e otlolohileng, tataiso ea phallo e bohareng e lokela ho ba ho tloha tlase ho ea holimo); ha DN ≥ 450mm, valve ea ho hlahloba buffer e lokela ho sebelisoa; ha DN = 100 ~ 400mm, valve ea ho hlahloba liphaephe le eona e ka sebelisoa; valve ea swing check valve e ka etsoa hore e be le khatello e phahameng haholo ea ho sebetsa, PN e ka fihla ho 42MPa, 'me e ka sebelisoa ho leha e le efe e sebetsang le mocheso ofe kapa ofe oa mocheso o sebetsang ho itšetlehile ka thepa ea khetla le litiiso. Seaplane ke metsi, mouoane, khase, corrosion medium, oli, moriana, joalo-joalo The sebetsa mocheso mefuta e fapaneng e pakeng tsa -196 ~ 800℃.

3.8 Litaelo tsa khetho ea valve ea diaphragm

Sephahla sa diaphragm se loketse oli, metsi, mecha ea litaba ea asiti le mecha ea litaba e nang le lintho tse tiileng tse emisitsoeng ka mocheso o sebetsang o ka tlase ho 200 ° C le khatello e ka tlase ho 1.0MPa. Ha e loketse li-solvents tsa manyolo le mecha ea litaba e matla ea oxidant. Li-valve tsa diaphragm tsa mofuta oa Weir li lokela ho khethoa bakeng sa mecha ea litaba ea abrasive granular. Ha u khetha valve ea diaphragm ea mofuta oa weir, bua ka tafole ea litšobotsi tsa eona tsa phallo; maro a li-viscous, li-slurries tsa samente le mecha ea phatlalatso e nang le pula e lokela ho sebelisa li-valve tsa diaphragm tse otlolohileng; ntle le litlhoko tse khethehileng, li-valve tsa diaphragm ha lia lokela ho sebelisoa liphaepheng tsa vacuum le thepa ea vacuum.