Litlhoko tsa nako e telele tsa tlhokomelo le ho kopanya li-valve
The valve resistance coefficient ¦Æ e itšetlehile ka boholo, sebopeho le sebopeho sa cavity ea sehlahisoa sa valve. Karolo e 'ngoe le e' ngoe karolong ea 'mele ea valve e ka nkoa e le tsamaiso ea likarolo tse hlahisang khanyetso (mokelikeli o fetoha, o atoloha, oa likonteraka, o fetoha hape, joalo-joalo). Ka hona, tahlehelo ea khatello ea valve e batla e lekana le kakaretso ea tahlehelo ea khatello ea karolo ka 'ngoe ea valve. Ho lokela ho totobatsoa hore phetoho ea khanyetso ea karolo e le 'ngoe tsamaisong e tla baka phetoho kapa ho aroloa ha khanyetso tsamaisong eohle, ke hore, phallo e bohareng e ama karolo e' ngoe le e 'ngoe ea pipe.
Ha mokelikeli o feta ka valve, tahlehelo ea eona ea ho hanyetsa mokelikeli e emeloa ke ho theoha ha khatello ea metsi ¡÷P pele le ka mor'a valve.
Bakeng sa lino tse moferefere:
Moo ¡÷P - tahlehelo ea khatello ea valve tlas'a teko (MPa)
¦Æ - phallo ea ho hanyetsa coefficient ea valve;
P - Boima ba metsi (kg/mm)
U - Karolelano ea lebelo la phallo ea mokelikeli peiping (mm/s)
Ho hanyetsa metsi a likarolo tsa valve
The valve resistance coefficient ¦Æ e itšetlehile ka boholo, sebopeho le sebopeho sa cavity ea sehlahisoa sa valve. Karolo e 'ngoe le e' ngoe karolong ea 'mele ea valve e ka nkoa e le tsamaiso ea likarolo tse hlahisang khanyetso (mokelikeli o fetoha, o atoloha, oa likonteraka, o fetoha hape, joalo-joalo). Kahoo tahlehelo ea khatello ea valve e batla e lekana le kakaretso ea tahlehelo ea khatello ea karolo ka 'ngoe ea valve, ke hore:
Ka foromo, coefficient ea ho hanyetsa ea likarolo tsa li-valve tse nang le sekhahla se lekanang sa phallo e mahareng pompong.
Ho lokela ho totobatsoa hore phetoho ea khanyetso ea ntho e le 'ngoe tsamaisong e baka phetoho kapa ho aroloa ha khanyetso tsamaisong eohle, ke hore, phallo e bohareng e ama karolo e' ngoe le e 'ngoe ea pipe ka bobeli. E le ho hlahloba tšusumetso ea likarolo tse sa tšoaneng ho hanyetsa li-valve, ho sebelisoa lintlha tsa ho hanyetsa tsa likarolo tse ling tse tloaelehileng tsa li-valve. Lintlha tsena li bontša kamano pakeng tsa sebōpeho le boholo ba likarolo tsa valve le ho hanyetsa metsi.
(1) Keketseho ea tšohanyetso
Joalokaha ho bontšitsoe setšoantšong sa 1-12, ho atoloha ka tšohanyetso ho baka tahlehelo e kholo ea khatello. Mothating ona, karolo ea lebelo la mokelikeli e sebelisoa ka sebopeho sa eddy, ho sisinyeha ha mokelikeli le ho futhumatsa. Kamano e hakanyetsoang pakeng tsa coefficient ea ho hanyetsa sebakeng seo le karo-karolelano ea sebaka sa sefapano sa A1 pele ho ho atolosoa le A2 ka mor'a ho atolosoa ho ka hlalosoa ka li-equations (1-9) le (1-10). The hula coefficient e bontšitsoe tafoleng
Setšoantšo sa 1-12 Katoloso ea tšohanyetso
(1-9)
(1-10)
Ngola %
¦Æ - coefficient ea ho hanyetsa ka lebelo le mahareng phaepheng e atolositsoeng;
¦Æ - Hula coefficient ka lebelo le bohareng ka har'a tube pele e atolosoa.
Lethathamo la 1-32 ¦Æ boleng ba coefficient ea sebaka sa ho hula nakong ea katoloso ea tšohanyetso
(2) Ho atoloha butle-butle Joalokaha ho bontšitsoe setšoantšong sa 1-13, ha ¦È 40¡ã, coefficient ea ho hanyetsa ea tube e ntseng e eketseha butle-butle e nyenyane ho feta ea tube e ntseng e eketseha ka tšohanyetso, empa ha ¦È=50¡ã -90 ¡ã , palo ea ho hanyetsa e eketsa 15% -20%. Butle-butle katoloso e betere Angle ¦È: tube e chitja ¦È=5¡ã ~6¡ã30′; Sekwere tube ¦È =7¡ã~8¡ã; Coefficient ea sebaka sa ho hanyetsa ea "rectangular tube" ¦È= 10¡ã -12 ¡ã e ka baloa ka tsela e latelang:
(1-11)
¦Æ — coefficient, joalokaha ho bontšitsoe ho Lethathamo la 1-33;
¦Ëm - karolelano ea ho hanyetsa coefficient tseleng,
¦Ë1¦Ë2 - ke li-coefficients tse tsamaisanang le li-tubes tse nyane le tse kholo ka ho latellana.
Setšoantšo sa 1-13 se atoloha butle-butle
Lethathamo la 1-33 ¦Æ boleng
(3) Ho fokotseha ka tšohanyetso ho bontšoa ho Setšoantšo sa 1-14. Coefficient ea khanyetso ea sebaka sa ho fokotseha ka tšohanyetso e bontšoa ho Lethathamo la 1-34. ¦Æ e ka baloa ka mokhoa o latelang oa matla:
(1-12)
Setšoantšo sa 1-14 atometsa kantle
(4) Ho fokotseha butle-butle Joalokaha ho bontšitsoe setšoantšong sa 1-15, tahlehelo ea khatello e hlahisoang ke ho fokotseha butle-butle e nyenyane, 'me coefficient ea ho hanyetsa sebakeng seo e baloa ka tsela e latelang:
(1-13)
¦Î C - coefficient, joalokaha ho bontšitsoe ho Lethathamo la 11-35;
¦Å — coefficient, sheba Lethathamo la 1-36
¦Æ boleng bo ka boela ba fumanoa ka ho toba setšoantšong sa 1-16.
Setšoantšo sa 1-15 se fokotseha butle-butle
Lethathamo la 11-34 ¦Æ boleng ba li-coefficients tsa lehae tse fokolitsoeng ka tšohanyetso
Litlhoko tsa nako e telele tsa tlhokomelo le ho kopanya li-valve
Valve ke karolo ea taolo ea sistimi e tsamaisang mokelikeli, e nang le ho khaola, ho lokisoa, ho kheloha, ho thibela li-countercurrent, regulator ea khatello, shunt kapa phallo ea khatello ea khatello le mesebetsi e meng. Li-valve bakeng sa litsamaiso tsa taolo ea mokelikeli, ho tloha ho li-valve tse bonolo ka ho fetisisa tsa lefats'e ho isa lits'ebetsong tse rarahaneng haholo tsa taolo e sebelisoang mefuteng e mengata e fapaneng ea li-valve le litlhaloso. Li-valve li ka sebelisoa ho laola phallo ea moea, metsi, mouoane, mecha ea litaba e fapaneng e senyang, seretse, oli, tšepe ea metsi le mecha ea radioactive le mefuta e meng ea maro. Kahoo, ts'ebelisong ea nako e telele ea ts'ebetso ea valve e lokela ho ba mokhoa oa ho boloka?
1. U se ke ua sebelisa li-levers tse telele kapa li-wrench mabili ha u koala kapa u bula valve.
2. Likhoele tsa stem hangata li ferekanngoa le stem nut, li lokela ho ba ka har'a screw ho boloka palo e itseng ea oli, lubrication, ho etsa bonnete ba hore ho tsamaea ka bolokolohi ha kutu, ho fetoha habonolo le ho molemo. Phetiso ea mochini oa li-valve, ho ea ka nako ka har'a li-additives tsa gearbox, ho thibela ho loma.
3. Bula valve ka nako e telele, sebaka sa ho tiisa se ka 'na sa khomarela ka litšila; Ha u koala, valve e ka koaloa ka bonolo pele, ebe e bula hanyenyane, e le hore litšila li ka hlatsuoa ka phallo e phahameng ea sekhahla, ebe e koala hape.
4. Belofo e kentsoeng ka ntle e lokela ho sireletsoa ka letsoho le sireletsang holim'a kutu ea valve ho thibela pula, lehloa, lerōle le mafome.
5. Valofo e lokela ho hloekisoa le ho hlahlojoa khafetsa ho boloka likarolo tsa valve li hloekile li bile li feletse. U se ke ua beha lintho tse boima holim'a valve 'me u se ke ua ema holim'a valve.
6. Pele o bula valve ea mouoane, tlosa metsi a kokotang tsamaisong, ebe butle-butle bula valve ho qoba tšusumetso ea metsi a soda; Ha belofo e bulehile ka ho feletseng, khutlisetsa lebili la letsoho morao hanyane.
7. Sesepa sa spare se lokela ho behoa sebakeng se omileng ka tlung, 'me sebopeho se lokela ho koaloa ka boto ea pampiri ea boka kapa plug ho qoba ho kena ha litšila.
Litlhoko tsa ho kopanya li-valve
Likarolo tse hloekisitsoeng li tlameha ho koaloa bakeng sa ho kenya. Litlhoko tsa mokhoa oa ho instola ke tse latelang:
1. Setsi sa ho kenya tšebetsong se tlameha ho hloeka, kapa se thehe libaka tse hloekileng tsa nakoana, joalo ka masela a sa tsoa rekoa a mebala kapa filimi ea polasetiki, ho thibela lerōle ho kena nakong ea ho kenya.
2, basebetsi ba kopano ba tlameha ho apara liaparo tse hloekileng tsa k'hothone, ba roale sekoahelo se hloekileng sa k'hothone, moriri o ke ke oa lutla, maoto a roala lieta tse hloekileng, matsoho a roala liatlana tsa polasetiki, tse senyang.
3. Lisebelisoa tsa kopano li tlameha ho tlotsoa le ho hloekisoa pele ho kopano ho netefatsa bohloeki.
Nako ea poso: Jun-30-2022
