Iyini i-valve?

I-valve, ngezinye izikhathi eyaziwa ngokuthi i-valve ngesiNgisi, iyithuluzi elisetshenziselwa ukuvimba kancane noma ukulawula ukugeleza koketshezi oluhlukahlukene. Ivalvu iyisesekeli sepayipi esetshenziselwa ukuvula nokuvala amapayipi, ukulawula indlela ukugeleza, nokuguqula nokulawula izici zendlela yokudlulisa, okuhlanganisa izinga lokushisa, ukucindezela, nokugeleza. Ingahlukaniswa ngama-valve wokuvala, ama-valve okuhlola, ama-valve alawulayo, njalonjalo kuye ngomsebenzi. Amavalvu ayizingxenye ezilawula ukugeleza kwezinhlobo ezahlukene zoketshezi, okuhlanganisa umoya, amanzi, isitimu, njll. ezinhlelweni zokulethwa koketshezi. Amavalvu ensimbi, amavalvu ensimbi, amavalvu ensimbi engagqwali, chromium molybdenum steel valves, chrome molybdenum vanadium steel valves, duplex steel valves, plastic valves, non-standard custom valves, njll. ezimbalwa kuphela zezinhlobo ezahlukene kanye nokucaciswa kwamavalvu. .

Ngokuphathelene nesikhathi esidlule se-valve

Zonke izinsuku zokuphila kwethu zithintwa ukusetshenziswa kwama-valve. Sisebenzisa ama-valve lapho sivula umpompi ukuze sithole amanzi okuphuza noma umshini wokucisha umlilo wokunisela izitshalo. Ukuphikelela kwamavalvu amaningi kungenxa yokuhlobana okuyinkimbinkimbi kwamapayipi.

Ukuvela kwezinqubo zokukhiqiza izimboni kanye nokuthuthukiswa kwama-valve kuxhumene ngokuseduze. Itshe elikhulu noma isiqu somuthi singase sisetshenziselwe ukumisa ukugeleza kwamanzi noma ukuguqula indlela eya ngaso ezweni lasendulo ukuze kulawulwe ukugeleza kwemifula noma imifudlana. U-Li Bing (iminyaka engaziwa yokuzalwa nokufa) waqala ukumba imithombo kasawoti eThafeni LaseChengdu ekupheleni kwenkathi Yezizwe Ezilwayo ukuze athole usawoti omningi nosawoti.

Lapho ukhipha amanzi ahlanzekile, uqalo oluncane oluncane lusetshenziswa njengesilinda sokukhipha amanzi anosawoti esifakwa ekeseni sibe nevalvu yokuvula neyokuvala ngezansi. Uhlaka lokhuni olukhulu lwakhiwe phezu komthombo, futhi isilinda esisodwa singadonsa amanzi anosawoti amabhakede amaningana. Usawoti ube usuthathwa kusetshenziswa isondo lombumbi kanye nesondo lokuthulula ibhakede loqalo. Yibeke emthonjeni ukuze ukhiphe amanzi ahlanzekile ukuze ukhiqize usawoti, futhi ufake i-valve yokhuni ye-plunger ekugcineni ukumisa ukuvuza.

Phakathi kokunye, impucuko yaseGibhithe neyamaGreki yakha inqwaba yezinhlobo ezilula zamavalvu okunisela izitshalo. Kodwa-ke, kuyavunywa ukuthi amaRoma asendulo enza izinhlelo zokunisela amanzi eziyinkimbinkimbi zokunisela izitshalo, esebenzisa amaqhude nama-plunger valves kanye namavalvu angabuyi ukuvimba amanzi ukuthi ahlehle.

Imiklamo eminingi yezobuchwepheshe kaLeonardo da Vinci kusukela enkathini yeRenaissance, okuhlanganisa nezinhlelo zokunisela, imisele yokunisela, kanye neminye imiklamo ebalulekile yesistimu ye-hydraulic, isasebenzisa ama-valve.

Kamuva, njengoba ubuchwepheshe bokushisa kanye nemishini yokonga amanzi ithuthukile eYurophu,isidingo samavalvungokuqhubekayo anda. Ngenxa yalokho, ama-valve epulaki ethusi ne-aluminium athuthukiswa, futhi ama-valve afakwa ohlelweni lwensimbi.

INguquko Yezimboni kanye nomlando wesimanje womkhakha wamavalvu unomlando ofanayo oye wajula ngokuhamba kwesikhathi. Injini yokuqala ye-steam yokuhweba yadalwa ngo-1705 ngu-Newcomman, owahlongoza nezimiso zokulawula ukusebenza kwenjini ye-steam. Ukusungulwa kukaWatt kwenjini yesitimu ngo-1769 kwaphawula ukungena okusemthethweni kwe-valve embonini yemishini. Ama-valve okuxhuma, ama-valve okuphepha, ama-sheke valve, nama-butterfly valves ayevame ukusetshenziswa ezinjinini zesitimu.

Izicelo eziningi ebhizinisini lama-valve zinezimpande zazo ekwakhiweni kwe-Watt yenjini yesitimu. Ama-valve ama-slide aqala ukuvela ngekhulu le-18 nele-19 ngenxa yokusetshenziswa kabanzi kwezinjini ze-steam yizimayini, uku-ayina, izindwangu, ukukhiqizwa kwemishini, nezinye izimboni. Ukwengeza, udale isilawuli sejubane sokuqala, okwaholela ekwandeni kwesithakazelo ekulawuleni ukugeleza kwamanzi. Intuthuko ephawulekayo ekuthuthukisweni kwama-valve wukuvela okulandelayo kwama-valve embulunga aneziqu ezinemicu kanye nama-valve wesango eliwucezu elineziqu ezinemicu ye-trapezoidal.

Ukuthuthukiswa kwalezi zinhlobo zama-valve amabili ekuqaleni kwanelise izimfuno zokulawulwa kokugeleza kanye nezidingo zezimboni eziningi zokuthuthukisa njalo umfutho we-valve nezinga lokushisa.

Amavalvu ebhola noma amapulaki ayindilinga, ahlehlela emuva ekwakhiweni kuka-John Wallen no-John Charpmen ngekhulu le-19 kodwa awazange afakwe ekukhiqizweni ngaleso sikhathi, kufanele kube amavavu okuqala emlandweni.

I-US Navy yayingumsekeli wokuqala wokusetshenziswa kwama-valve emikhumbi-ngwenya ngemva kweMpi Yezwe II, futhi ukuthuthukiswa kwe-valve kwenziwa ngesikhuthazo sikahulumeni. Ngenxa yalokho, sekuye kwenziwa amaphrojekthi nezinhlelo eziningi ze-R&D endaweni yokusetshenziswa kwamavalvu, futhi impi iholele ekuthuthukisweni kobuchwepheshe obusha be-valve.

Umnotho wamazwe athuthukile ngokwezimboni waqala ukuchuma futhi wathuthuka ngokulandelana ngeminyaka yawo-1960. Imikhiqizo evela emazweni angaphambili aseNtshonalanga Jalimane, eJapane, e-Italy, eFrance, e-United Kingdom, nakwamanye amazwe ayezimisele ngokudayisa izimpahla zawo phesheya, futhi ukuthunyelwa kwemishini ephelele nemishini yikho okwaqhuba ukuthunyelwa kwama-valve kwamanye amazwe.

Amakoloni angaphambili athola inkululeko ngayinye phakathi kokuphela kweminyaka yawo-1960 kanye nasekuqaleni kwawo-1980. Bemagange ukuthuthukisa izimboni zabo zasekhaya, bathenga kwamanye amazwe imishini eminingi, kuhlanganise nama-valve. Ukwengeza, inkinga kawoyela yabangela amazwe ahlukahlukene akhiqiza uwoyela ukuba atshale izimali ezinkulu emkhakheni kawoyela onenzuzo enkulu. Isikhathi sokukhula okukhulu ekukhiqizeni ama-valve emhlabeni wonke, ukuhweba, kanye nentuthuko sangeniswa ngenxa yezizathu eziningi, okuqhubekisela phambili kakhulu ukukhula kwebhizinisi lama-valve.