Ama-valves ayizinto ezincane ezinemithwalo yemfanelo emikhulu. Bangama-linchpins abagcina imisebenzi yezimboni, yezentengiselwano kanye nokuhlala isebenza kahle futhi iphephile ekukhiqizeni, ekushiseni, nezinye izinhlobo eziningi zezinhlelo. Phakathi kwezinhlobo ezahlukahlukene zama-valves atholakalayo, ama-valves okuphepha nama-valves okusiza abaluleke kakhulu. Ngenkathi zingabonakala zifana ekuqaleni, zinemisebenzi ehlukile, izinhlelo zokusebenza, kanye nezinqubo zokusebenza.
Ukuqonda umehluko phakathi kwama-valves okuphepha kanye nama-valves okusiza kubalulekile ekuqinisekiseni ukusebenza kahle nokuphepha kwezinhlelo zakho. Ukuthi ubandakanyeka ekucutshungweni kwamakhemikhali, ukwelashwa kwamanzi, noma yimuphi omunye imboni ethembele ekucindezelweni okulawulwayo, ukukhetha i-valve efanele kubalulekile kubo bobabili ukuphepha kanye nokusebenza kohlelo lwakho. Ake sithole umehluko phakathi kwe-valve yokusiza ingcindezi ne-valve yokuphepha kwengcindezelo ukuze ukwazi ukusebenza okulungele wena.
Yini i-valve yokuphepha?
I-valve yezokuphepha isebenza njengonogada wohlelo olucindezelwe, eklanyelwe ukukhulula ngokuzenzakalelayo ingcindezi eyenziwe igesi, umusi, noma uketshezi lapho ingcindezi engaphakathi. Zihlala ziqaphile, zilungele ukwenza umzuzu izinto zihamba zimbi. Indima eyinhloko ye-valve yezokuphepha ukuvikela uhlelo lwakho emiphumeleni engenzeka eyinhlekelele yokweqisa, okungaholela ekulimaleni kwemishini noma, okubi kakhulu, izingozi zokuphepha zabasebenzi.
Indlela engaphakathi kwe-valve yokuphepha iqondile kodwa iyasebenza. Kulinganiselwe ukuvula ngokugcwele futhi ngokushesha ukuphambukisa ukuhamba koketshezi noma igesi ecindezelwe ngokweqile kuya endaweni ephephile, imvamisa isimo esiseduze. Lapho ingcindezi ibuyela emazingeni amukelekayo, i-valve ivalwa, ivumela uhlelo ukuthi luqale ukusebenza okujwayelekile. Lesi senzo esisheshayo, esivule ngokuphelele kungenye yezimpawu ezichazayo ze-valve yokuphepha futhi zihlukanisa ngaphandle kwezinye izinhlobo zama-valve. Ama-valves ezokuphepha atholakala kakhulu ezinhlelweni eziphakeme zengcindezi efana nama-boilers kaSteam, ama-cyliders egesi, kanye nezitshalo zamakhemikhali. Indima yabo akuyona nje ukuvimbela; Kuyinto ebaluleke kakhulu yokugcina ubuqotho nokuphepha kokusebenza kwakho konke.
Yini i-valve yokusiza?
I-valve yokusiza yinye ingxenye ebucayi ekuphathweni kwengcindezi yohlelo, kepha isebenza ngokuhlukile kwi-valve yokuphepha. Ngenkathi zombili lezi zinhlobo zihlose ukunciphisa ingcindezi eyeqile, i-valve yokusiza yenza lokho okulawulwa ngokwengeziwe. Ngokungafani nesenzo esisheshayo, esivulekele esigcwele se-valve yokuphepha, i-valve yokusiza ivulwa kancane kancane, ivumela inani legesi ngokulinganayo noma uketshezi ukuze uphunyuke. Le ndlela yenza ama-valves okusiza alungele izinhlelo lapho ukuguquguquka kwengcindezi kuvame kakhulu kepha kungabi kakhulu.
I-valve yokusiza yenzelwe ukuvula ngokwengeziwe njengoba ingcindezi inyuka, ikhipha ngokwanele nje kwento ukuletha uhlelo lubuyele kwiveli yayo yokusebenza ephephile. Lapho ingcindezi isizinzile, i-valve iyavalwa. Lokhu kuqinisekisa ukuphazamiseka okuncane kokusebenza. Lokhu kulawulwa kokugeleza okuguquguqukayo kuyisici esichazayo sama-valve wokusiza futhi ubahlukanise nabalingani babo be-valve ephephile. Izicelo ezijwayelekile zama-valves wokusiza zifaka amasistimu we-hydraulic, amasistimu wokufudumeza wamanzi, kanye nama-compressours aul. Indima yabo ibalulekile ekugcineni ibhalansi yohlelo lwakho, uqiniseke ukuthi isebenza ngokuphepha nangendlela efanele.
Yini umehluko obalulekile?
Ngalesi sikhathi, kungenzeka ukuthi uzibuza ukuthi umehluko muni phakathi kwe-valve yokusiza ingcindezi ne-valve yokuphepha lapho bobabili besebenza injongo efanayo. Ngenkathi behlanganyela inhloso efanayo yokugcina ukuphepha nokusebenza kahle, izindlela zabo kanye nezinhlelo zokusebenza zibekele ngezindlela ezihlukile.
Omunye womehluko ophawuleka kakhulu yindlela yokuvula, kepha okunye ukwahluka okubalulekile kutholakala kwizicelo zabo. Ama-valves ezokuphepha asetshenziswa ngokujwayelekile ezinhlelweni eziphakeme zengcindezi lapho kudingeka khona usizo lwengcindezi esheshayo ukuvikela ukwehluleka kwenhlekelele. Ngakolunye uhlangothi, ama-valves okusiza afaneleke ngokwengeziwe ngezinhlelo zengcindezi eziphansi kwezengcindezi lapho ukuhlukahluka kwengcindezi kuvame kodwa hhayi okwedlulele.
Ukulawulwa kokugeleza ngohlobo ngalunye lwe-valve kuyehlukahluka kuye kwahluka. Ama-valves okuphepha asebenza ngesilinganiso sokugeleza esinqunyelwe, okusho ukuthi avulekele ngokuphelele noma cha. Ama-valves wokusiza anikeza ukulawula okuguqukayo kokugeleza, okuvumela indlela ehle kakhulu yokuphatha ingcindezi. Ukuqonda lokhu kuhluka okubalulekile kungakusiza wenze isinqumo esifanele sohlelo lwakho lokusebenza ngenkathi uqinisekisa ukuthi uhlelo lwakho lusebenza ngokuphepha nangendlela efanele.
Kuyini ukufana kwabo?
Ngenkathi ama-valves ezokuphepha nama-valves wokusiza anezici zawo ezihlukile kanye nezinhlelo zokusebenza, nazo zabelana ngesisekelo esivumelana esifanele sokuqapha. Zombili lezi zinhlobo zama-valves zisebenzela inhloso eyisisekelo yokuvikela uhlelo lwakho ezingozini zokucindezelwa ngokweqile. Noma ngabe usebenza nge-Steam-Trueful Steam noma i-hydraulic fluid, lawa ma-valves asebenza njengeziphepha ukuvikela ukulimala kwemishini futhi alondoloze indawo ephephile yokusebenza.
Enye into eyabiwe ukwakhiwa kwabo. Womabili la ma-valves ajwayele ukwenziwa ngezinto ezifanayo ezifana nensimbi engenasici noma zethusi, zenzelwe ukubekezelela ukusetshenziswa kwezimboni. Ukwakhiwa kwabo kusiza ekuqinisekiseni ukusebenza kwabo okuhlala isikhathi eside nokwethembeka, okwenza babe yizakhi ezibalulekile ezinhlelweni zokulawula izingcindezi. Womabili la ma-valve afakwe iphuzu elisethiwe, izinga lokucindezela elinqunyelwe asebenze kulo. Leli phuzu lesethi liyakwazi ukuguqulwa, okuvumela ukusebenza kwe-valve ukuthi kufanekiswane nezidingo ezithile zohlelo.
Naphezu kokungafani kwabo, umsebenzi oyisisekelo wokuphepha kanye nama-valve wokusiza uyafana; ukugcina imvelo ephephile futhi esebenzayo yokusebenza. Ukubona lokhu kufana kungakusiza ukuthi ukwazise izindima i-valve ngayinye ohlelweni lokuphathwa kwengcindezi.
Ukukhetha i-valve efanele hhayi nje ngokushaya ibhokisi; Kumayelana nokwenza isinqumo esinolwazi esivumelana nezidingo ezithile nezinselelo zohlelo lwakho. Noma ngabe ubhekene nezindawo eziphakeme kakhulu noma amasistimu ngokushintshashintsha kwengcindezi okujwayelekile kodwa okulinganiselayo, ukukhetha phakathi kwe-valve yezokuphepha ne-valve yokusiza kuyinto ebucayi.
Zombili lezi zinhlobo zama-valve zibaluleke kakhulu, ngamunye unikeza izinzuzo ezihlukile ngokuya ngezidingo zohlelo lwakho. Lapho ubheka ukuphepha vs ama-valves wokusiza, khumbula ukuthi kufaka phakathi noma zombili zohlelo lwakho zivikela imishini yakho futhi zinomthelela endaweni ephephile futhi esebenza kahle.
Isikhathi Seposi: Feb-21-2024