Kwimizi-mveliso apho umhlwa sisisongelo esiqhubekayo—njengokulungisa imichiza, ukufakwa elwandle, nokucocwa kwamanzi amdaka—ukukhetha ilungeloivalveinokuba ngumahluko phakathi kokuthembeka kwexesha elide kunye nokusilela kwezixhobo kwangoko. Kodwa ngokukhethwa kwezinto ezininzi kunye nezinto eziguquguqukayo zokusebenza, unokuqinisekisa njani okona kulungileyoukhetho lwevalvu kwiindawo ezonakalisayo?
Eli nqaku libonelela ngesikhokelo esibalulekileyo sokunceda iinjineli, abathengi, kunye nabaphathi bezityalo ukuba benze ukhetho olunolwazi olubeka phambili ukhuseleko, ukusebenza kakuhle, kunye neendleko zomjikelo wobomi.
Izicelo eziQhelekileyo eziNyonzayo eziBanga iiValuvu eziZodwa
Iindawo ezingcolisayo zichazwa bubukho bolwelo olundlongo-ndlongo, umphunga, okanye iigesi ezinokuthobisa imathiriyeli ngokuhamba kwexesha. Ezi meko zifumaneka rhoqo kwi:
Izityalo zeKhemikhali kunye nePetrochemical: Apho iiasidi, iialkali, izinyibilikisi, kunye neekloridi ziphathwa ngokuqhelekileyo.
Ukukhutshwa kwetyuwa emanzini olwandle kunye neeNkqubo zaseLwandle: Isiqulatho setyuwa eninzi kunye nokufuma kubeka imingcipheko eyingozi yokuhlwa.
IiMila zePulp kunye nePhepha: Ukuvezwa kwii-agent ze-bleaching kunye ne-process chemicals kufuna izisombululo zokulawula ukuhamba okuzinzileyo.
Imigodi kunye neMetallurgy: I-slurries kunye neekhemikhali ezivuzayo zifuna i-abrasion- kunye nezixhobo ezikwazi ukumelana nomhlwa.
Nganye kwezi setingi zifuna ulungelelwanisoukhetho lwevalvu kwiindawo ezonakalisayoukuqinisekisa ukusebenza kwexesha elide kunye nokhuseleko.
Ukukhetha izinto eziLungileyo zokuLwa nokuMhlwa
Ukubunjwa kwezinto zevalve kudlala indima ebalulekileyo ekuxhathiseni ukubola. Nazi ezinye zezona mathiriyeli zisebenzayo kwizicelo ezinzima:
1. Intsimbi engatyiwa (304/316)
Insimbi engenasici isetyenziswa ngokubanzi ukuxhathisa kwayo ngokugqwesileyo kwi-corrosion jikelele. I-316 insimbi engenasici, ene-molybdenum eyongeziweyo, inika ukusebenza okuphezulu kwiindawo ezityebileyo zekloridi njengamanzi olwandle.
2. Intsimbi yentsimbi (umzekelo, iHastelloy, iMonel, i-Inconel)
Ezi ngxubevange eziphezulu zokusebenza zenzelwe ukuxhathisa okukhethekileyo kwii-asidi ezinobundlobongela kunye ne-oxidizers. Zikulungele ubushushu obuphezulu kunye noxinzelelo oluphezulu lweenkqubo zokubola.
3. PTFE okanye PFA Linings
Iivalvu ezifakwe nge-polytetrafluoroethylene (PTFE) okanye i-perfluoroalkoxy (PFA) zisebenza kakhulu ekukhuseleni ukuhlaselwa kweekhemikhali, ngakumbi kwiimeko apho izinto zetsimbi ziza kuncipha ngokukhawuleza. Ezi linings azinert ngokwekhemikhali kwaye zifanelekile kuluhlu olubanzi lwe-pH.
4. Duplex kunye Super Duplex Stainless Steels
Ngeepropathi eziphuculweyo zoomatshini kunye nokuchasana okuphezulu kwi-corrosion yasekhaya, ii-alloys eziphindwe kabini zifanelekile kusetyenziso lwamanzi olwandle kunye nemeko-bume yoxinzelelo oluphezulu.
Ukukhetha izinto ezifanelekileyo linyathelo lokuqala kwimpumeleloukhetho lwevalvu kwiindawo ezonakalisayo, kodwa kukho okungakumbi ekufuneka kuqwalaselwe.
Indlela yokwandisa ubomi beValve kwiimeko ezinzima
Kwanezona mathiriyeli zibalaseleyo zifuna iindlela zokusebenza ezifanelekileyo ukuze ziqhube kakuhle ekuhambeni kwexesha. Nazi izicwangciso zokuphucula ukuqina kwevalvu:
ULondolozo lwarhoqo kunye noHlolo: Cwangcisa uhlolo lwesiqhelo ukuchonga iimpawu zokuqala zokubola, ukuguga, okanye ukuthotywa kwetywina.
Ufakelo olululo: Ukungaqondi kakuhle okanye ukuqina ngokugqithiseleyo ngexesha lofakelo kunokudala amanqaku oxinzelelo olukhawulezisa ukungaphumeleli kwimimiselo ephazamisayo.
Uhlobo lweValve oluLungileyo loMsebenzi: Iivalve zesango, iivalve zebhola, kunye ne-diaphragm valves ziziphatha ngendlela eyahlukileyo phantsi kokuvezwa kweekhemikhali-qinisekisa ukuba uhlobo olukhethiweyo luhambelana nemidiya kunye nomjikelo wokusebenza.
Ukusetyenziswa kweeNgqungquthela eziKhuselekileyo: Kwezinye iinkqubo, iingubo ezongezelelweyo okanye i-linings inokunyusa ngakumbi ukuxhathisa ukubola kunye nokunciphisa ukubonakaliswa kwesinyithi.
Ukuyila ucinga ngomjikelo opheleleyo wobomi kunceda ukwandisa imbuyekezo kutyalo-mali kunye nokunciphisa ixesha lokuphumla elingalindelekanga.
Ukuqukumbela: UkuKhetha iValve eSmart ibalulekile kwindawo eNyonakalisayo
Kwimingeni yeekhemikhali okanye kwiindawo zaselwandle, ukuhambelana kwezinto, uhlobo lwevalve, kunye nesicwangciso sokugcina kufuneka sisebenze kunye ukuqinisekisa ukuthembeka kwenkqubo. Unolwaziukhetho lwevalvu kwiindawo ezonakalisayoinceda ukuthintela ukusilela, ukunciphisa imingcipheko yokusebenza, nokuphucula ukusebenza kakuhle kwexesha elide.
Ngaba ujonge iNkxaso yeNgcali kwiZisombululo zeValve eNganyangekiyo kwi-Corrosion?
Thatha iValveibonelela ngobuchule bobugcisa kunye neemveliso ezithembekileyo ezilungiselelwe usetyenziso lwemizi-mveliso olonakalisayo. Qhagamshelana nathi namhlanje ukuze sixoxe ngendlela esingakunceda ngayo ufumane isisombululo sevalvu efanelekileyo kwezona ndawo zinzima.
Ixesha lokuposa: Jun-09-2025