Kuphakama kangakanani ukumelana kwengcindezi kwe-valve yesheke

Umkhakha wohlelo olomile uketshezi ubelokhu ecishe abe yiminyaka engama-20, futhi abantu bavame ukubuza naboBheka ama-valves, "Le nto ingamelana kangakanani?" Kufanele wazi ukuthi ahlole ama-valves, "njengabagcini-masango enezindlela zendlela eyodwa," akudingeki futhi abekezelele ukushaqeka emuva, kepha amandla abo "wokuphikisana" ahlobene ngqo nokuphepha kwalo lonke ipayipi, kepha leli khono alilungisiwe futhi liqukethe imininingwane eminingi.

Ake sixoxe ngethonya lezinto zokwakha kuqala, akuwona umehluko omncane. I-valve ye-Iron Check Checve evame kakhulu yi-valve "yengcindezi ephansi", evame ukwazi ukubekezelela izingcindezi ze-1.0 kuya ku-1.6 MPA, futhi isetshenziswa kakhulu ekuhlinzekweni kwamanzi okuhlala kanye namapayipi amanzi. Okokugcina ngisize ukulungisa ipayipi lamanzi emphakathini wakudala, i-cast iron Check valve engiyisusile yathatha iminyaka emihlanu ukuyisebenzisa futhi yanele ukuphatha ingcindezi yamanzi yansuku zonke. Izindleko beziphansi futhi, kepha azikwazanga ukulingana ezimweni eziphakeme kakhulu.

Uma ithathelwa indawo ngensimbiBheka i-valve, "Ukuphikiswa kwengcindezi" kuzoqhamuka, futhi izingcindezi ezisukela ku-2,5 kuye ku-6.4 MPA zingabanjwa kangako. Ngibonile ekuhlaziyeni ukuthi amapayipi aphakathi nendawo aphezulu athutha uwoyela ongahluziwe wonke asekelwa ama-valves e-cast story Checks - kepha umzimba we-fluid uguquguquka, kepha umzimba we-valve uhlala ungashintshiwe. Ukube kwathathelwa indawo nge-Iron Count, bekungaba yinkinga kudala, ake sivimbele ukubuyela emuva nemishini yokuvikela.

Onamandla kakhulu yi-valve yensimbi engagqwali, engagcini ngokumelana nokugqwala kuphela, kodwa futhi futhi angamelana nengcindezi kuze kube yi-10MPA noma ngaphezulu. Ngonyaka odlule kuphrojekthi yonjiniyela wasolwandle, ipayipi elifakwe emanzini olwandle alisebenzisa, okwakudingeka libekezelele umthelela ophakeme wengcindezelo yamanzi asolwandle futhi avikele ukuqina kwamanzi olwandle. Kusetshenziswe cishe iminyaka emibili ngaphandle kwezinkinga. Kukhona futhi amafektri okudla namakhambi emithi anezidingo eziphezulu zokuhlanzeka nokuphikiswa kokugqwala. Ama-valves angenasici angakwazi ukubekezelela ingcindezi yokukhiqiza ngaphandle kokungcolisa okuphakathi, ukubulala izinyoni ezimbili ngetshe elilodwa.

Ngaphezu kwalokho okuqukethwe, ukwakheka okuhlelekile nakho kufihla 'ikhodi yokumelana nengcindezi'. RotaryBheka i-valvekufana nomgcini wesango ongakwazi "ukuvula umnyango ngokujika". Lapho ipuleti le-rocker lijikeleza, ingcindezi ingasabalalisa kanye nesakhiwo, okwenza kusizinze ikakhulukazi ezindaweni ezinengcindezi ephezulu; Ama-valves wokuhlola wohlobo olunyukayo anjenge-lifvers, enama-valve disks aslayida phezulu naphansi nokubekwa uphawu okuhle. Kodwa-ke, amamodeli ajwayelekile alungele ukucindezela okuphakathi nendawo okuphansi, kepha eminye imiklamo ekhethekile nayo ingamelana nengcindezi eningi. Khetha ngokuya ngezidingo ezithile.

Ekugcineni, kufanele ngikukhumbuze: Lapho ukhetha i-valve yesheke, ungabhekisi nje "inani lokumelana nengcindezi", udinga kuqala ukuqonda ukufudumala kohlelo lwakho - liphezulu kangakanani? Ingabe amanzi aphakathi, uwoyela, noma uketshezi olusolisayo? Ukuqonda ngokuphelele lokhu nokukhetha izinto ezihambelana kahle nezakhiwo ezingabheka i-valve ehlose ngempela "umthwalo wokuphepha". Ngaphandle kwalokho, ngisho ne-valve enhle kakhulu ngeke ibe yize uma isetshenziswa endaweni engafanele!