Iphezulu kangakanani ingcinezelo ye-valve yokutshekisha

Umzi-mveliso wenkqubo owomileyo ubekhona malunga neminyaka engama-20, kwaye abantu bahlala bebuzaJonga i-valveves, "Ingaba le nto ingahlukani na le nto?" Kuya kufuneka uyazi ukuba i-valve yetsheki, 'abagcini-magama-yendlela enye, "ayifuni nje ukuthintela i-backflow, kodwa ihambelana nesothuso"

Makhe sithethe ngempembelelo yezinto zokufakwa kuqala, ayisiyo mahluko mncinci. Eyona valve ixhaphakileyo ye-Iron ye-Iron ye-Iron yingcali ye-Iron "yingcali yoxinzelelo esezantsi", ihlala inamandla okucinezeleka kwe-1,0 ukuya kwi-1.6 MPA, kwaye isetyenziswa kakhulu ekunikezelweni kwamanzi kunye nemibhobho yendawo yokuhlala. Okokugqibela ndincedise ukulungisa umbhobho wamanzi kwigumbi lakudala, i-bieng yentsimbi yentsimbi ndisusile ndathatha iminyaka emihlanu ukuyisebenzisa kwaye yayingaphezulu kokuphatha uxinzelelo lwamanzi lwemihla ngemihla. Indleko yayiphantsi, kodwa ayikwazanga ukubakho kwimo yoxinzelelo oluphezulu.

Ukuba ithathelwe indawo yintsimbi yentsimbiJonga i-valve"Ingcinezelo yembophelelo" iya kuza, kwaye uxinzelelo lusuka kwi-2,5 ukuya kwi-6.4 MPA lunokubanjwa ngokuthobekileyo. Ndibonile kwii-repineries ukuba imibhobho yendlela ephakathi nenqanaba eliphezulu yokuhambisa ioyile ye-crude zonke zixhaswe yintshontsho lokujonga i-valves yensimbi, kodwa ibhunga lokugcwala lingaguquki. Ukuba ithathelwe indawo yi-iron yentsimbi, ibiya kuba yingxaki kwakudala, yayeka ukuthintela ukubuyela umva kunye nezixhobo zokukhusela.

Oyena mntu unamandla yi-valve ye-staight yentsimbi, engavisisiyo kuphela, kodwa inokumelana noxinzelelo ukuya kwi-10MPA okanye ngaphezulu. Kunyaka ophelileyo kwiprojekthi yobunjineli baselwandle, ipipeline imanzi emanzini aselwandle yayiyisebenzisa, eyayinokumelana nefuthe eliphezulu lamanzi amaninzi kunye nokuthintela ukuvela kwamanzi. Isetyenziswe phantse iminyaka emibini ngaphandle kweengxaki. Kukwakho ukutya kunye neefektri zamachiza ezineemfuno eziphezulu ze-hygiene kunye nokunganyangeki. I-valves ye-Staiel yensimbi inokumelana noxinzelelo lwemveliso ngaphandle kokungcolisa iphakathi, ibulala iintaka ezimbini ngelitye elinye.

Ukongeza kwezinto, uyilo lolwakhiwo lukwafihla ikhowudi 'yokunganyangeki'. IrejistaJonga i-valveinjengomgcini-sango onokuthi "avule umnyango ngokujika". Xa iplate yeRocker ijikeleza, uxinzelelo lunokusasazeka ecaleni kwesakhiwo, lenze uzinze ngakumbi kwiindawo ekucinezeni kakhulu; Ukuphakamisa uhlobo lokujonga i-valvators lifana nenyusa, nge-valve disves inyuka nangaphantsi kwaye itywine. Nangona kunjalo, iimodeli eziqhelekileyo zilungele uxinzelelo oluphakathi kwaye ziphantsi, kodwa ezinye iindlela ezikhethekileyo zinokumelana noxinzelelo oluninzi. Khetha ngokweemfuno ezithile.

Okokugqibela, kufuneka ndikukhumbuze: xa ndikhetha ivalve yokujonga, sukujonga nje "kwixabiso lokunyangwa", kufuneka uqale uqonde ukuba ucinezelwe yinkqubo yakho - ingakanani uxinzelelo? Ngaba amanzi aphakathi, ioyile, okanye ulwelo oluphambili? Kuphela ngokuqonda ngokucokisekileyo ezi kwaye ukhethe izixhobo ezihambelana nezixhobo ezihambelana kunye nezakhiwo zinokufumana ivalve ebonakalayo ifanele ichaphazele ngokwenene "umthwalo wokhuseleko". Ngaphandle koko, nokuba i-valve ilungileyo iya kuba yinto engenamsebenzi ukuba isetyenziswa kwindawo engalunganga!