Melemo le melemo ea li-valve tse fapaneng Li-valve tse kholo tsa bophara ke hobane'ng ha ho le thata ho fetola? Joang ho e rarolla?
Ho hlophisoa ka tšebeliso le ts'ebetso
The truncation valve e sebelisoa haholo ho fokotsa kapa ho hokahanya phallo e mahareng. Ho kenyelletsa valve ea heke, valve ea globe, valve ea diaphragm, valve ea bolo, valve ea plug, valve ea disc, valve ea plunger, valve plug, valve ea mofuta oa nale, joalo-joalo.
Li-valve tse laolang li sebelisoa haholo-holo ho lokisa phallo ea seaplane, khatello, joalo-joalo Ho kenyelletsa valve e laolang, valve ea throttle, valve e fokotsang joalo-joalo.
Li-valve tsa ho hlahloba li sebelisoa ho thibela ho khutla ha mecha ea litaba. Li-valve tsa ho hlahloba tsa kaho tse fapaneng li kenyelelitsoe.
Li-valve tsa diverter li sebelisetsoa ho arola, ho aba kapa ho kopanya mecha ea litaba. Ho kenyelletsa mefuta e fapaneng ea sebopeho sa valve ea kabo le sefi, joalo-joalo.
Balofo ea polokeho bakeng sa khatello e phahameng ea mahareng ha ts'ireletso ea polokeho. Mefuta eohle ea li-valve tsa tšireletso e kenyelelitsoe.
E arotsoe ka liparamente tse kholo
(a) ho ea ka sehlopha sa khatello
Khatello ea ts'ebetso ea valve ea vacuum ka tlase ho maemo a tloaelehileng a khatello ea sepakapaka.
Valve ea khatello e tlase e nang le khatello ea lebitso PN e ka tlase ho 1.6MPa.
Khatello e bohareng ea belofo ka lebitso la khatello ea PN2.5 ~ 6.4MPa.
Khatello e phahameng ea valve ka lebitso la khatello PN10.0 ~ 80.0MPa valve.
Khatello e phahameng ea khatello e phahameng ka lebitso PN e kholo ho feta 100MPa valve.
(2) ho ea ka sehlopha sa mocheso o bohareng
Li-valve tsa mocheso o phahameng oa t tse kholo ho feta 450C.
Belofo ea mocheso o mahareng 120C ka tlase ho T 450C valve.
Sephahla se tloaelehileng sa mocheso -40C
Belofo ea mocheso T tlase ho -100C valve.
(3) ho ea ka sehlopha sa lisebelisoa tsa 'mele oa valve
Sephahla sa lintho tse se nang tšepe: joalo ka valve ea ceramic, valve ea FRP, valve ea polasetiki.
Belofo ea tšepe ea tšepe: joalo ka belofo ea koporo ea koporo, valafo ea aluminium alloy, valve ea lead alloy, valve ea titanium alloy, valve ea Monel alloy
Belofo ea tšepe e entsoeng ka tšepe, valve ea tšepe ea carbon, valve ea tšepe e entsoeng ka tšepe, valve ea tšepe e tlaase, e phahameng ea tšepe ea alloy.
Li-valve tsa tšepe tse nang le 'mele oa tšepe: joalo ka valafo ea lead lead, valve ea polasetiki e kentsoeng, valve ea enamel e kentsoeng.
Mokhoa o akaretsang oa ho arola
Mokhoa ona oa ho arola ha se feela ho latela molao-motheo, ts'ebetso le sebopeho, ke mokhoa o sebelisoang haholo oa ho arola lapeng le kantle ho naha. Ka kakaretso, ho na le li-valve tsa heke, li-valve tsa globe, li-valve tsa throttle, li-valve tsa lisebelisoa, li-valve tsa plunger, li-valve tsa diaphragm, li-valve tsa plug, li-valve tsa bolo, li-valve tsa serurubele, li-valve tsa ho hlahloba, li-valve tse fokotsang khatello, li-valve tsa tšireletso, maraba, li-valve tse laolang, li-valve tse tlaase, li-filters. , li-valve tsa ho theoha, joalo-joalo.
Hobaneng ho le thata ho chencha li-valve tse kholo tsa caliber? Joang ho e rarolla?
Tlhahlobo ea mabaka a bothata ba ho bula le ho koala li-valve tse kholo tsa bophara
Moeli o tloaelehileng oa motho e moholo o lekanyang matla ke 60-90kg, ho latela 'mele o fapaneng.
Tataiso e akaretsang ea phallo ea valve ea lefats'e e etselitsoe ho ba tlase le holimo. Ha valve e koetsoe, 'mele oa motho o sutumelletsa lebili la letsoho ho ea holimo ho potoloha, e le hore valve ea valve e theohele tlase ebe e koala. Nakong ena, motsoako oa likarolo tse tharo tsa matla o hloka ho hlōloa, e leng:
1) axial jacking matla a Fa;
2) Matla a khohlano pakeng tsa ho paka le valve stem Fb;
3) The stem e kopana le mokokotlo oa disc ka matla a khohlano Fc
Kakaretso ea torque ke M=(Fa+Fb+Fc)R
Ho ka bonoa hore boholo bo boholo, matla a axial jacking a maholo. Ha e le haufi le boemo bo koetsoeng, matla a axial jacking a batla a le haufi le khatello ea sebele ea marang-rang a pipe (hobane P1-P2P1, P2 = 0 ha e koetsoe).
Mohlala, valve ea "caliber globe" ea DN200 e sebelisoa phala ea mouoane ea 10bar, 'me lentsoe la eona * le koala axial thrust Fa=10R2 =3140kg. Matla a rapameng a sedikadikwe a hlokehang bakeng sa ho kwala a haufi le moedi wa matla a rapameng a circumferential ao mmele o tlwaelehileng wa motho o ka o ntshang. Ka hona, ho thata haholo hore motho a koale valve ka ho feletseng tlas'a boemo bona ba ho sebetsa.
Ha e le hantle, lifeme tse ling li fana ka maikutlo a ho kenya mofuta ona oa valve ka morao, e leng ho rarolla bothata ba ho thata ho koala, empa ho na le bothata ba ho thata ho bula ka mor'a ho koala.
Tlhahlobo ea sesosa sa valve e kholo ea bophara ba lefats'e e tloaetseng ho lutla ka hare
Li-valve tse kholo tsa caliber stop hangata li sebelisoa sebakeng sa boiler, cylinder e kholo, motsamaisi oa mouoane le maemo a mang, maemo ana a na le mathata a latelang:
1) Phapang ea khatello sebakeng sa boiler ka kakaretso e kholo, kahoo sekhahla sa phallo ea mouoane le sona se seholo, 'me phello ea khoholeho le ts'enyeho holim'a sebaka sa ho tiisa le eona e kholo. Ntle le moo, ts'ebetso ea mollo oa boiler e ke ke ea e-ba 100%, e leng se tla etsa hore metsi a metsi a boiler a be kholoanyane, a be bonolo ho hlahisa cavitation le tšenyo ea cavitation sebakeng sa ho tiisa valve.
2) Ho tsoa ha boiler le valve e khaotsoeng haufi le silinda, hobane mouoane o tsoa ka har'a boiler, ho na le ts'ebetso ea ho chesa haholo, nakong ea ho tlala, haeba kalafo e nolofatsang metsi a boiler e se ntle haholo, hangata precipitate karolo ea asiti le alkali dintho, ka holim'a tiiso e tla baka kutu le khoholeho ea mobu; Lintho tse ling tse ka tšeptjoang le tsona li ka hokelloa holim'a kristale ea valve, e leng se etsang hore valve e se ke ea koaloa ka thata.
3) The valve e kenang le ea ho tsoa ea sub-cylinder, hobane tšebeliso ea mouoane ka mor'a valve e bakoa ke litlhoko tsa tlhahiso le mabaka a mang, tšebeliso ea mouoane e kholo ebile e nyenyane, tabeng ea phetoho e kholo ea tekanyo ea phallo, ho joalo. ho bonolo ho hlahisa li-flash, cavitation le liketsahalo tse ling, kahoo li baka khoholeho ea mobu, cavitation le tšenyo e 'ngoe holim'a ho tiisa holim'a valve.
4) Ka kakaretso, ha liphaephe tse kholo tsa bophara ba lipeipi li buloa, hoa hlokahala ho futhumatsa phala pele, 'me ts'ebetso ea ho futhumatsa ka kakaretso e hloka hore phallo e nyane ea mouoane e fete, e le hore phala e futhumale butle le ka ho lekana ho isa tekanyong e itseng pele valve e khaotsoeng e ka buloa ka botlalo, e le ho qoba ho atoloha ho feteletseng ho bakoang ke ho futhumala ka potlako ha pipeline le tšenyo ea karolo ea khokahanyo. Empa ts'ebetsong ena, ho buloa ha valve hangata ho nyane haholo, ho fella ka sekhahla sa khoholeho e kholo ho feta ts'ebeliso e tloaelehileng ea ts'ebeliso, e fokotsa ka botebo bophelo ba ts'ebeletso ea sebaka se tiisitsoeng sa valve.
E kholo bophara ba ho emisa valve switjha tharollo e thata
1) Pele ho tsohle, ho khothaletsoa ho khetha li-bellows tse koalang valve ea lefats'e ho qoba tšusumetso ea likhohlano tsa valve ea plunger le valve ea ho paka le ho chencha habonolo.
2) setulo sa spool se tlameha ho etsoa ka lisebelisoa tse nang le khanyetso e ntle ea khoholeho ea mobu le ts'ebetso ea ho roala, joalo ka Siteli carbide;
3) Ho kgothaletswa ho sebelisa sebopeho sa li-disc tse peli, eseng ka lebaka la ho bula ha nyenyane ho bakoang ke khoholeho e feteletseng, ho ama bophelo ba tšebeletso le phello ea ho tiisa.
Nako ea poso: Aug-05-2022
