Leano la ho khetha li-valve! Pokello! Tlhaloso ea khetho ea mofuta oa valve le mofuta oa koloi
Litsamaisong tsa liphaephe tsa mokelikeli, li-valve ke likarolo tsa taolo tseo karolo ea tsona e ka sehloohong e leng ho arola lisebelisoa le lisebelisoa tsa liphaephe, ho laola phallo, ho thibela ho khutla, ho laola le ho ntša khatello. E ka sebelisoa ho laola ho phalla ha moea, metsi, mouoane, mefuta eohle ea mecha ea litaba e senyang, seretse, oli, tšepe ea metsi le mecha ea radioactive. Hobane tsamaiso ea liphaephe ho khetha valve e loketseng ka ho fetisisa e bohlokoa haholo, ka hona, ho utloisisa litšobotsi tsa valve le khetho ea mehato ea li-valve le motheo le tsona li fetoha tsa bohlokoa.
Litsamaisong tsa liphaephe tsa mokelikeli, li-valve ke likarolo tsa taolo tseo karolo ea tsona e ka sehloohong e leng ho arola lisebelisoa le lisebelisoa tsa liphaephe, ho laola phallo, ho thibela ho khutla, ho laola le ho ntša khatello. E ka sebelisoa ho laola ho phalla ha moea, metsi, mouoane, mefuta eohle ea mecha ea litaba e senyang, seretse, oli, tšepe ea metsi le mecha ea radioactive. Hobane tsamaiso ea liphaephe ho khetha valve e loketseng ka ho fetisisa e bohlokoa haholo, ka hona, ho utloisisa litšobotsi tsa valve le khetho ea mehato ea li-valve le motheo le tsona li fetoha tsa bohlokoa.
Sehlopha sali-valve
Ntlha ea pele, valve e ka aroloa ka lihlopha tse peli:
Valve ea othomathike ea sehlopha: e ipapisitse le seaplane (metsi, khase) bokhoni ba eona ba ho sebetsa valve.
Tse kang valve ea ho hlahloba, valve ea tšireletso, valve e laolang, sefi, valve e fokotsang khatello, joalo-joalo.
Mofuta oa bobeli oa valve ea koloi: ka thuso ea tataiso, motlakase, hydraulic, pneumatic ho laola ketso ea valve.
Joalo ka belofo ea heke, belofo ea lefatše, belofo ea throttle, belofo ea serurubele, belofo ea bolo, belofo ea plug joalo-joalo.
Tse peli, ho ea ka litšobotsi tsa sebopeho, ho ea ka tataiso ea karolo e koalang e amanang le motsamao oa setulo sa valve e ka aroloa:
1. Sebopeho sa monyako oa ho emisa: karolo e koalang e tsamaea bohareng ba setulo;
2. Sebopeho sa heke: sengoathoana se koalang se tsamaea haufi le setsi se otlolohileng sa setulo;
3. Koko le bolo: karolo e koalang ke plunger kapa bolo, e pota-potileng moeli oa eona o bohareng;
4. Sebopeho sa swing: karolo e koalang e potoloha ho pota-pota ka ntle ho setulo;
5. Disc: diski ea karolo e koalang e potoloha ho pota-potile sefate sa setulo;
6. Slide belofo sebopeho: ho koala sengoathoana slide ka tataiso perpendicular ho kanale.
Tse tharo, ho latela ts'ebeliso, ho latela ts'ebeliso e fapaneng ea valve e ka aroloa:
1. Ho robeha: e sebelisetsoang ho hokahanya kapa ho khaola mecha ea phatlalatso ea liphaephe, joalo ka valve ea globe, valve ea heke, valve ea bolo, serurubele, joalo-joalo.
2. Hlahloba: e sebelisetsoa ho thibela ho khutla ha mecha ea litaba, joalo ka valve ea ho hlahloba.
3 ho lokisoa ka: e sebelisetsoang ho fetola khatello le phallo ea seaplane, joalo ka valve e laolang, valve e fokotsang khatello.
4. Phatlalatso: e sebelisetsoang ho fetola tsela ea phallo ea sebaka se bohareng, mokhoa oa ho aba, joalo ka mokoko oa litsela tse tharo, valve ea kabo, valve ea slide, joalo-joalo.
5. Valve ea tšireletso: ha khatello e bohareng e feta boleng bo boletsoeng, e sebelisetsoa ho ntša mokhoa o feteletseng ho netefatsa tšireletso ea tsamaiso ea liphaephe le lisebelisoa, tse kang valve ea tšireletso le valve ea kotsi.
6. Litšebeliso tse ling tse khethehileng: tse kang sefi, valve ea moea, valve ea drain, joalo-joalo.
Tse 'nè, ho ea ka mokhoa oa ho khanna, ho ea ka mekhoa e fapaneng ea ho khanna e ka aroloa:
1. Buka ea tataiso: ka thuso ea lebili la letsoho, ho tšoara, lever kapa sprocket, ho na le koloi ea motho, torque ea phetisetso e na le lisebelisoa tsa seboko, lisebelisoa le lisebelisoa tse ling tsa ho fokotsa.
2. Motlakase: o tsamaisoa ke motlakase kapa lisebelisoa tse ling tsa motlakase.
3. Hydraulic: e tsamaisoa ke (metsi, oli).
4. Pneumatic: e tsamaisoa ke moea o hatelitsoeng.
Tse hlano, ho ea ka khatello, ho ea ka khatello ea lebitso la valve e ka aroloa:
1. Vacuum valve: *** khatello ea 0.1Mpa, e leng 760mm mercury high valve, hangata e nang le mm mercury kapa mm kholomo ea metsi ho emela khatello.
2. Valofo e tlase ea khatello: khatello ea lebitso PN≤1.6Mpa valve (ho kenyeletsoa PN≤1.6MPa valve ea tšepe)
3. Belofo ea khatello e bohareng: khatello ea lebitso PN2.5-6.4mpa valve.
4 valve ea khatello e phahameng: khatello ea lebitso PN10.0-80.0MPa valve.
5. Valofo ea khatello e phahameng ea Ultra: khatello ea lebitso PN≥100.0MPa valve.
Tse tšeletseng, ho ea ka mocheso oa seaplane, ho ea ka valve sebetsa seaplane mocheso o ka aroloa:
1. Belofo e tloaelehileng: e loketse mocheso o mahareng -40 ℃ ~ 425 ℃ valve.
2. Belofo e phahameng ea mocheso: e loketse mocheso o bohareng oa 425 ℃ ~ 600 ℃ valve.
3. Belofo e thibelang mocheso: e loketse mocheso o bohareng oa 600 ℃ kapa ka holim'a valve.
4. Belofo e tlaase ea mocheso: e loketse mocheso o bohareng -150 ℃ ~ -40 ℃ valve.
5.** mocheso belofo: e loketseng mocheso seaplane ka tlase -150℃ belofo.
Tse supileng, ho ea ka bophara ba lebitso, ho ea ka bophara ba "valve" bo ka aroloa:
1. Sephahla se senyenyane sa bophara: valve ea lebitso la DN40mm.
2. Belofo ea bophara bo bohareng: valve ea bophara ba lebitso la DN50 ~ 300mm valve.
3. Sephahla se seholo sa bophara: sekhahla sa lebitso la DN350 ~ 1200mm valve.
4. Belofo ea bophara bo boholo bo eketsehileng: phunya ka lebitso la DN≥1400mm valve.
Tse robeli, ho ea ka mokhoa oa ho hokahanya le liphaephe, ho ea ka valve le mokhoa oa ho hokahanya liphaephe li ka aroloa:
1. Flanged valve: 'mele oa valve o na le flange,' me phala e kopantsoe le valve ea flange.
2. Belofo e nang le khoele: 'mele oa valve o nang le khoele ea ka hare kapa ea ka ntle, le phala e nang le valve ea khoele ea khoele.
3. Weld valve: 'mele oa valve o na le molomo oa welding,' me valve e tšeloa phala.
4 khokahanyo ea li-vallofo: 'mele oa li-valve o nang le seqhomane, 'me phala e hokahane ka valve ea clamp.
5. Sephahla sa ho hokahanya ha sleeve: valve e kopantsoe le phala ka letsoho.
Litšobotsi tsa li-valve
Litšobotsi tsa li-valve ka kakaretso li na le mefuta e 'meli, litšobotsi tsa ts'ebeletso le libopeho tsa sebopeho.
Litšobotsi tsa tšebeliso: e etsa qeto ea hore na ts'ebeliso e ka sehloohong ea ts'ebetso ea li-valve le mefuta e mengata ea ts'ebeliso, ke ea litšobotsi tsa tšebeliso ea li-valve ke: sehlopha sa li-valve (valve ea potoloho e koetsoeng, valve e laolang, valve ea polokeho, joalo-joalo); Mofuta oa sehlahisoa (valve ea heke, valve ea globe, valve ea serurubele, valve ea bolo, joalo-joalo); Likarolo tse ka sehloohong tsa valve ('mele oa valve, sekoahelo, stem, disc, sealing surface) lintho tse bonahalang; Mokhoa oa phetisetso ea li-valve, joalo-joalo.
Litšobotsi tsa sebopeho: e etsa qeto ea ho kenya valve, ho lokisoa, tlhokomelo le mekhoa e meng ea litšoaneleho tse ling tsa sebopeho: bolelele ba sebopeho sa valve le bophahamo ba kakaretso, le foromo ea khokahanyo ea liphaephe (ho hokahanya ha flange, khoele). kgokelo, kgokelo ya hoop, kgokelo ya thapo ya ka ntle, kgokelo ya welding end, jj.); Sebopeho sa ho tiisa bokaholimo (kenya selikalikoe, selikalikoe sa khoele, sefahleho, ho cheselletsa ho fafatsa, 'mele oa' mele); Sebopeho sa sebopeho sa li-valve (thupa e potolohang, molamu oa ho phahamisa), joalo-joalo.
Mekhoa ea ho khetha li-valve le motheo
Mehato ea khetho:
1, valve e hlakileng ka thepa kapa tšebeliso ea lisebelisoa, fumana maemo a ho sebetsa a valve: sebaka se sebetsang, khatello ea ho sebetsa, mocheso o sebetsang joalo-joalo.
2, fumana bophara ba lebitso le mokhoa oa ho hokahanya ha phala e kopanyang le valve: flange, khoele, welding, joalo-joalo.
3, fumana mokhoa oa ho sebelisa valve: tataiso, motlakase, motlakase, pneumatic kapa hydraulic, khokahano ea motlakase kapa khokahano ea electro-hydraulic.
4, ho ea ka mochine oa phetisetso ea liphaephe, khatello ea ho sebetsa, mocheso o sebetsang ho fumana hore na khetla ea valve e khethiloeng le likarolo tse ka hare tsa thepa: tšepe e bohlooho, tšepe e bonolo, tšepe ea ductile, tšepe ea carbon, tšepe ea alloy, tšepe e sa keneleng acid, motsoako oa koporo, joalo-joalo.
5, khetha mofuta oa valve: valve ea potoloho e koetsoeng, valve e laolang, valve ea polokeho, joalo-joalo.
6, fumana mofuta oa valve: valve ea heke, valve ea lefats'e, valve ea bolo, valve ea serurubele, valve ea throttle, valve ea polokeho, valve e fokotsang khatello, sefi sa mouoane, joalo-joalo.
7, etsa qeto ea litekanyo tsa valve: bakeng sa li-valve tsa othomathike, ho latela litlhoko tse fapaneng tsa ho tseba hore na ho na le khanyetso e lumelletsoeng ea phallo, matla a ho tsoa, khatello ea morao, joalo-joalo, ebe u tseba hore na bophara ba phala le bophara ba lesoba la setulo sa valve ke bofe. .
8, fumana litekanyo tse khethiloeng tsa geometri tsa belofo: bolelele ba sebopeho, sebopeho sa khokahanyo ea flange le boholo, bula le ho koala tataiso ea bophahamo ba belofo ea boholo, khokahano ea boholo ba lesoba la bolt le palo, boholo ba sebopeho sa belofo kaofela.
9, tšebeliso ea tlhahisoleseling e teng: lethathamo la lihlahisoa tsa li-valve, lisampole tsa sehlahisoa sa li-valve le lihlahisoa tse ling tse nepahetseng tsa li-valve.
Khetho ea motheo oa valve:
Ka kutloisiso ea khetho ea mehato ea li-valve, empa hape e lokela ho utloisisa ka ho eketsehileng motheo oa khetho ea li-valve.
1, tšebeliso ea valve e khethiloeng, maemo a ts'ebetso le mokhoa oa ho laola.
2, mofuta oa sebaka sa ho sebetsa: khatello ea ho sebetsa, mocheso o sebetsang, ts'ebetso ea kutu, ho sa tsotellehe hore na e na le likaroloana tse tiileng, ebang ke chefo e bohareng, ebang e ka chesa, ho phatloha ho hoholo, viscosity e bohareng joalo-joalo.
3, litšobotsi tsa mokelikeli oa li-valve tsa litlhoko: ho hanyetsa ho phalla, matla a ho ntša, litšobotsi tsa phallo, boemo ba ho tiisa joalo-joalo.
4, boholo ba ho kenya le litlhoko tsa boholo ba kantle: bophara ba lebitso, khokahano le phala le boholo ba khokahano, boholo ba kantle kapa moeli oa boima.
5. Litlhoko tse eketsehileng mabapi le ho tšepahala, bophelo ba tšebeletso le ts'ebetso ea ho phatloha ha lihlahisoa tsa li-valve.
Ha u khetha paramente, hlokomela hore:
Haeba VALVE E TLA SEBEDISWA BAKENG SA MORERO OA HO SEBELISA, HO HLOKAHALA HO HLOMELA HO HLOKOMELA HO SEBELISA HO SEBELISA HO SEBELISA HO SEBELISA HA HO TLA HO SEBELISA: mokhoa oa ts'ebetso, boholo le litlhoko tse fokolang tsa phallo, ho theoha ha khatello bakeng sa phallo e tloaelehileng, ho theoha ha khatello ha ho koaloa, boholo LE bonyane khatello ea ho kena bakeng sa valve.
Ho ea ka khetho e ka holimo ea motheo oa li-valve le mehato, khetho e utloahalang le e nepahetseng ea valve e tlameha ho ba le kutloisiso e qaqileng ea sebopeho sa ka hare sa mefuta e sa tšoaneng ea li-valve, e le hore u khone ho khetha ka mokhoa o khethehileng valve ho etsa khetho e nepahetseng.
Taolo ea ho qetela ea pipeline ke valve. Likarolo tsa ho bula le ho koala li-valve li laola phallo ea mecha ea phatlalatso ka phaephe, sebōpeho sa mocha oa phallo ea valve se nolofalletsa valve ho ba le litšobotsi tse itseng tsa phallo, tse lokelang ho tsotelloa ha ho khethoa valve e loketseng ho kenngoa tsamaisong ea liphaephe.
Khetha valve e lokela ho latela molao-motheo
1, sehiloeng le seaplane se bulehileng ka valve
Tsela ea ho phalla ke valve e otlolohileng, ho hanyetsa ho phalla ho nyenyane, hangata ho khethoa e le mokhoa o khaotsoeng le o bulehileng o nang le valve. Valofo e koetsoeng ka tlase (valve ea lefats'e, valve ea plunger) ka lebaka la tsela ea eona ea ho phalla, ho hanyetsa ho phalla ho phahame ho feta li-valve tse ling, kahoo ha ho khethoe ka tlase. Li-valve tse koetsoeng li ka sebelisoa moo ho hanyetsanang le phallo e phahameng ho lumelloang.
2, laola phallo ea li-valve
Hangata valve eo ho leng bonolo ho e lokisa e khethoa ho laola phallo. Li-valve tsa ho koala tse eang tlase (joalo ka li-valve tsa GLOBE) LI LOKELANG HO BAKENG SA MORERO ENA HOBANE BOHLOKO BA SETULO BO LEBANE LE STROKE EA SHUTOFF. LI-VALVES tsa Rotary (PLUG, butterfly, BALL valves) le FLEXURE BODY VALVES (PINCH, DIAPHRAGM) LI TSE FUMANEHILE HO TSAMAISA HO TSAMAEA, empa hangata FEELA FEELA ka har'a mefuta e fokolang ea li-valve DIAMETERS. Gate VALVE KE Heke e bōpehileng joaloka disc ho ea boema-kepe ba setulo se chitja ho etsa motsamao o fetang, e haufi le sebaka se koetsoeng, e ka laolang phallo hantle, kahoo hangata ha e sebelisoe ho laola phallo.
3. Valofo bakeng sa ho khutlisa le ho khelosa
Belofo e ka ba le likanale tse tharo kapa ho feta, ho latela tlhoko ea ho khutlisa le ho kheloha. Li-valve tsa plug le bolo li loketse morero ona, ka hona, li-valve tse ngata tse sebelisetsoang ho khutlisa le ho kheloha li khethoa e le e 'ngoe ea li-valve tsena. Leha ho le joalo, KA MAEMO A mang, MEFUTA E meng EA LI-VALVE LE ENA E KA SEBEDISWA JOALOKA DIVERTER COMMUTATION FEELA HA FEELA HORE LI-VALVE TSE PEDI kapa TSE EKETSEHILENG LI HOKANE KA nepo.
4. Li-valve tsa mahareng tse nang le likaroloana tse emisitsoeng
Ha sehare se nang le likaroloana tse emisitsoeng, ** se loketse ho sebelisoa ha likarolo tse koalang hammoho le holim'a ho koala ha valve e thellang ka ketso ea ho hlakola. Haeba SHUTOFF E EMETSE MORAO LE PELE EA SETULO, LIKAROLO LI KA FUMANA, KA HONA VALVE ENA E LOKELA FEELA BAKENG SA LITABA TSE HLOEKILENG HA E LE HASE MOSEBETSI OA HO TIISA HO LUMELLA HORE LIKAROLO TSE KOPITSOE. Li-valve tsa bolo le li-valve tsa plug li hlakola sebaka sa ho tiisa nakong ea ho bula le ho koala, kahoo li loketse ho sebelisoa mecheng ea litaba ka likaroloana tse emisitsoeng.
Nako ea poso: Oct-14-2022
