I-Logic Yokukhetha Isiqu Se-Valve Ngaphansi Kwezimo Zokushisa Eziphezulu Nezingcindezi Eziphezulu

Esakhiweni sevalvu, isiqu sevalvu asibonakali siyinkimbinkimbi, kodwa uma nje usudlule ohlelweni lokushisa eliphezulu kanye nokucindezela okuphezulu, uyazi ukuthi singenye yezingxenye ezivame ukuba nenkinga kakhulu. Ikakhulukazi ezitshalweni zikagesi, ekucwengisisweni nasekusetshenzisweni kwensimbi, lapho izinga lokushisa lendawo livame ukuba ngama-degree angamakhulu amane noma amahlanu kanti ingcindezi ingamashumi amakhilogremu, uma isiqu sevalvu singakhethwanga ngokufanele, uphawu luzohluleka okungenani, futhi luzophuka noma lunamathele ngqo.

Sihlangane necala elisebenzayo: iqoqo lama-globe valve asetshenziswa esiteshini sikagesi laqala ukuminyana njalo ngemva kwengxenye yonyaka yokusebenza, futhi ukudilizwa kwasendaweni kwathola ukuthi ubuso besiqu se-valve babushintshile umbala futhi buphambukile, futhi ukupakisha kokuvala kwakungenakuvinjelwa. Kamuva, kwaqinisekiswa ukuthi umklamo wokuqala wawenziwe ngensimbi engagqwali engu-304, kodwa izinga lokushisa lokusebenza kwepayipi laliseduze no-500°C, futhi izinto zase zidlule umkhawulo.

Imbangela eyinhloko yokwehluleka kwesiqu ekushiseni okuphezulu kanye nokucindezela okuphezulu akuyona nje ukuntuleka kwamandla ezinto ezibonakalayo, kodwa futhi nokushintsha kosayizi wokulingana ngenxa yokwanda kokushisa, ukuphuka kokukhathala okubangelwa ukugcwala kokucindezeleka kokushisa, kanye nokungqubuzana okomile okubangelwa ukwehluleka kokugcoba. Ikakhulukazi ekusetshenzisweni kokuvulwa nokuvalwa okuvamile, ukushaywa isikhathi eside, kanye nemithwalo ephezulu, ukufakwa kwalezi zici kuzofinyeza kakhulu impilo yesiqu se-valve.

Ngakho-ke, ngokuvamile sigxila ezicini eziningana lapho sikhetha: okokuqala, zama ukusebenzisa izinto ezinokushisa okuphezulu namandla azinzile, njenge-17-4PH, F6a, 1Cr13Mo nezinye izinsimbi ezine-alloy ephezulu, uma kuyi-acidic medium, kufanele kucatshangelwe insimbi engagqwali ephindwe kabili noma i-Monel alloy; Okwesibili, kunconywa ukufaka ungqimba lwe-carbide oluqinisiwe engxenyeni yokuxhumanisa enezintambo ukuze kuthuthukiswe ikhono lokulwa nokubanjwa; Okwesithathu, indawo yokuxhumana yokugcwalisa kufanele isetshenziswe ngomshini oqondile futhi ifakwe i-nitride noma imbozwe.

Ngaphezu kwalokho, kunconywa ukusebenzisa ukucubungula okuhlanganisiwe esikhundleni sesakhiwo se-splicing esihlanganisiwe ngangokunokwenzeka ukunciphisa ingozi yokwehluleka kwe-interface. Ezinhlelweni zokusebenzisa i-long-stroke, kuyadingeka ukucabanga nge-axial offset ebangelwa ukuguqulwa kokushisa, ngaphandle kwalokho kungase kube nezinkinga "ezingekho endaweni" noma "ezinamathele".

Isiqu se-valve esikhiqizwa yi-Yining Machinery okwamanje sisetshenziswa kabanzi kumakhemikhali kagesi, amandla kagesi, i-metallurgy, igesi elicwengekile kanye neminye imboni, sithuthukise ngokukhethekile iziqu ze-valve ezenziwe ngokwezifiso ezifanele izakhiwo ezahlukene zokuxhuma zezinhlelo zama-valve ezishisa kakhulu kanye nomfutho ophezulu, okuhlanganisa ukuqeda ukwakheka, ukushisela intambo, ukwelashwa kwesibuko kanye nezinye izinqubo, ezingabhekana nezidingo zomsebenzi zomthwalo ophezulu kanye nemvamisa ephezulu yokuvula nokuvala.

Ngamafuphi, nakuba isakhiwo sesiqu silula, esimweni sokushisa okuphezulu kanye nesimo sokucindezela okuphezulu, uma ukukhetha okungafanele "kuyiphuzu elibuthakathaka" lesistimu. Kunconywa ukuthi esigabeni sokuklama nokuthenga, ukubalwa okuningiliziwe kufanele kwenziwe kuhlanganiswe nemingcele yesimo sokusebenza, izindlela zokuvula nokuvala, kanye nemvamisa yokusetshenziswa, kunokubheka nje izinto zokudweba noma intengo ukuze kunqunywe ukukhetha.