Belofo ke eng?

Belofo, eo ka linako tse ling e tsejoang e le valve ka Senyesemane, ke sesebelisoa se sebelisetsoang ho thibela kapa ho laola phallo ea phallo ea mokelikeli o fapaneng. Valve ke sesebelisoa sa lipeipi se sebelisetsoang ho bula le ho koala liphaephe, ho laola tsela ea phallo, le ho fetola le ho laola litšobotsi tsa mochini o tsamaisang, ho kenyeletsoa mocheso, khatello le phallo. E ka aroloa ka li-valve tse koalang, li-valve tsa ho hlahloba, li-valve tse laolang, joalo-joalo ho itšetlehile ka mosebetsi. Li-valve ke likarolo tse laolang phallo ea mefuta e fapaneng ea mokelikeli, ho kenyeletsa moea, metsi, mouoane, joalo-joalo mekhoeng ea ho fana ka metsi. Li-valve tsa tšepe tse entsoeng ka tšepe, li-valve tsa tšepe tse entsoeng ka tšepe, li-valve tsa tšepe tse sa hloekang, li-valve tsa tšepe tsa chromium molybdenum, li-valve tsa tšepe tsa chrome molybdenum vanadium, li-valve tsa tšepe tse peli, li-valve tsa polasetiki, li-valve tse sa tloaelehang tse hlophisitsoeng, joalo-joalo. .

Mabapi le nako e fetileng ea valve

Letsatsi le leng le le leng la bophelo ba rona le angoa ke tšebeliso ea li-valve. Re sebelisa li-valve ha re bulela pompo ho fumana metsi a ho noa kapa sesebelisoa sa ho tima mollo bakeng sa ho nosetsa lijalo. Ho phehella ha li-valve tse ngata ho bakoa ke ho hokellana ho rarahaneng ha lipeipi.

Phetoho ea mekhoa ea tlhahiso ea indasteri le nts'etsopele ea li-valve li amana haufi-ufi. Lejoe le leholo kapa kutu ea sefate e ka ’na ea sebelisoa ho emisa ho phalla ha metsi kapa ho fetola tsela eo a neng a le ka eona mehleng ea boholo-holo e le ho laola ho phalla ha linōka kapa melapo. Li Bing (lilemo tse sa tsejoeng tsa tsoalo le lefu) o ile a qala ho cheka liliba tsa letsoai Lehoatateng la Chengdu qetellong ea mehla ea Linaha Tse Lintoa e le hore a fumane letsoai le brine.

Ha ho ntšoa brine, lehlaka le tšesaane la bamboo le sebelisoa e le moqomo oa ho ntša metsi o kentsoeng ka har'a casing 'me o na le valve e bulang le e koalang ka tlase. Ho hahiloe foreimi e kholo ea lepolanka holim'a seliba, 'me silindara e le 'ngoe e ka hula libakete tse ngata tsa letsoai. Joale metsi a ntšoa ka lebili la sebōpi le lebili ho tšolla bakete ea bamboo. E kenye ka selibeng ho hula metsi a letsoai ho etsa letsoai, 'me u kenye valve ea lehong ea plunger ka lehlakoreng le leng ho emisa ho lutla.

Har'a lintho tse ling, tsoelo-pele ea Baegepeta le Bagerike e ile ea hlahisa mefuta e mengata e bonolo ea li-valve bakeng sa ho nosetsa lijalo. Leha ho le joalo, hoa lumeloa ka kakaretso hore Baroma ba boholo-holo ba thehile mekhoa e rarahaneng ea ho nosetsa ka metsi bakeng sa ho nosetsa lijalo, ba sebelisa li-valve tsa mokoko le li-plunger hammoho le li-valve tse sa khutleng ho thibela metsi ho khutlela morao.

Bongata ba meralo ea mahlale ea Leonardo da Vinci ho tloha mehleng ea Tsosoloso, ho kenyelletsa le lits'ebetso tsa ho nosetsa, liforo tsa ho nosetsa, le merero e meng ea bohlokoa ea sistimi ea haeteroliki, e ntse e sebelisa li-valve.

Hamorao, ha theknoloji e futhumatsang le lisebelisoa tsa ho baballa metsi li ntse li tsoela pele Europe,tlhokahalo ea li-valveeketseha butle-butle. Ka lebaka leo, li-valve tsa plug tsa koporo le aluminium li ile tsa hlahisoa, 'me li-valve li kenyelelitsoe tsamaisong ea tšepe.

Phetoho ea Liindasteri le nalane ea sejoale-joale ea indasteri ea li-valve li na le nalane e ts'oanang e tebileng ha nako e ntse e ea. Enjene ea pele ea khoebo ea mouoane e entsoe ka 1705 ke Newcomman, ea ileng a boela a etsa tlhahiso ea melao-motheo ea taolo bakeng sa ts'ebetso ea enjene ea mouoane. Ho qaptjoa ha Watt ea enjene ea mouoane ka 1769 ho ile ha tšoaea ho kena ha valve ka molao indastering ea mechine. Li-valve tsa plug, li-valve tsa tšireletso, li-check valves, le li-valve tsa serurubele li ne li atisa ho sebelisoa lienjineng tsa mouoane.

Lisebelisoa tse ngata khoebong ea li-valve li simolohile ho thehoeng ha Watt ea enjene ea mouoane. Li-valve tsa li-slide li qalile ho hlaha lekholong la bo18 le la bo19 la lilemo ka lebaka la tšebeliso e pharalletseng ea lienjine tsa mouoane ke liindasteri tsa merafo, tsa ho aena, tsa masela, tsa ho etsa mechini le tse ling. Ho phaella moo, o ile a theha molaoli oa pele oa lebelo, e leng se ileng sa lebisa thahasellong e eketsehileng ea ho laola phallo ea mokelikeli. Khatelo-pele e kholo ho nts'etsopele ea li-valve ke ponahalo e latelang ea li-valve tsa lefats'e tse nang le lithupa tse nang le likhoele le li-valve tsa heke tse nang le lithupa tsa trapezoidal.

Tsoelo-pele ea mefuta ena e 'meli ea li-valve qalong e ile ea khotsofatsa litlhoko tsa taolo ea phallo hammoho le litlhoko tsa liindasteri tse ngata bakeng sa ntlafatso e sa khaotseng ea khatello ea valve le mocheso.

Li-valve tsa bolo kapa li-spherical plug valves, tse qalileng ho qaptjoa ke John Wallen le John Charpmen lekholong la bo19 la lilemo empa li sa ka tsa kenngoa tlhahisong ka nako eo, e ne e lokela ho ba tsona tsa pele historing.

Sesole sa Metsing sa United States e ne e le motšehetsi oa pele oa tšebeliso ea li-valve ka likepe tse tsamaeang ka tlas'a lefatše ka mor'a Ntoa ea II ea Lefatše, 'me nts'etsopele ea valve e ile ea etsoa ka khothatso ea' muso. Ka lebaka leo, ho entsoe merero le matsapa a mangata a macha a R&D sebakeng sa tšebeliso ea li-valve, 'me ntoa e boetse e lebisitse tsoelopeleng ea theknoloji e ncha ea li-valve.

Meruo ea linaha tse tsoetseng pele tsa indasteri e ile ea qala ho atleha le ho ntlafala ka ho latellana ka bo-1960. Lihlahisoa tse tsoang linaheng tseo pele e neng e le Jeremane Bophirimela, Japane, Italy, Fora, United Kingdom, le lichabeng tse ling li ne li chesehela ho rekisa thepa ea tsona linaheng tse ling, ’me ho romelloa ha mechine e feletseng le thepa e ’ngoe ke hona ho ileng ha tsamaisa li- valve ka ntle ho naha.

Likolone tsa mehleng li ile tsa fumana boipuso ka bonngoe lipakeng tsa bofelong ba lilemo tsa bo-1960 le qalong ea lilemo tsa bo-1980. E re ka ba ne ba tlhoafaletse go tlhabolola madirelo a bone a mo gae, ba ne ba reka metšhine e ntsi kwa dinageng tse dingwe, go akaretsa le di- valve. Ho feta moo, bothata ba oli bo ile ba susumelletsa linaha tse sa tšoaneng tse hlahisang oli ho etsa matsete a maholo lekaleng la oli le nang le chelete e ngata. Nako ea kholo e matla ea tlhahiso ea li-valve lefatšeng ka bophara, khoebo, le nts'etsopele e ile ea kenngoa ka mabaka a 'maloa, e leng ho ntšetsang pele kholo ea khoebo ea li-valve.