Inkcazo yevalvu kunye neendidi ziya kuhambelana neemfuno zamaxwebhu oyilo lwemibhobho
1, ikhangela ivalveimodeli kufuneka iboniswe ngokweemfuno zenani elisemgangathweni LESIZWE.Ukuba umgangatho weshishini, kufuneka ubonise inkcazo efanelekileyo yemodeli.
2, ikhangela ivalveuxinzelelo olusebenzayo, iimfuno ≥ uxinzelelo lokusebenza kombhobho, ngaphandle kokuchaphazela ixabiso lendawo, ivalve inokumelana noxinzelelo kufuneka ibe mkhulu kunoxinzelelo lwemibhobho yokwenene;Naliphi na icala levalve kufuneka likwazi ukumelana namaxesha angama-1.1 oxinzelelo lwevalvu ngaphandle kokuvuza;Imeko evulekileyo yevalvu, umzimba wevalvu kufuneka ukwazi ukumelana neemfuneko zoxinzelelo lwevalvu kabini.
3, khangela ivalveimigangatho yokuvelisa, kufuneka ichaze isiseko senombolo yomgangatho KAZWELONKE, ukuba umgangatho weshishini, isivumelwano sokuthengwa kwempahla kufuneka sincanyathiselwe kuxwebhu lweshishini.
Khetha imathiriyeli yevalvu yokukhangela
1. Imathiriyeli yevalvu, njengoko umbhobho wentsimbi engwevu ungakhuthazwanga ukuba usetyenziswe, izixhobo zomzimba zevalvu kufuneka zibe yintsimbi yentsimbi, kwaye ibonise inombolo yophawu kunye nedatha yovavanyo lokwenyani kunye neekhemikhali zokusasa.
2, imathiriyeli ye-stem, izama kwi-stainless steel stem (20Cr13), ivalve enkulu yobubanzi kufuneka ibe yintsimbi edibeneyo edibeneyo.
3, izinto ze-nut, zisebenzisa ubhedu lwe-aluminium okanye ubhedu lwe-aluminium, kunye nokuqina kunye namandla amakhulu kunesiqu.
I-4, i-stem bushing material, ukuqina kwayo kunye namandla akufanele kube mkhulu kunesiqu, kwaye kwimeko yokucwiliswa kwamanzi kunye nesiqu, umzimba we-valve awukwenzi ukubola kwe-electrochemical.
5. Izinto eziphathekayo zomphezulu wokutywina:
Iindidi ze-valve zihlukile, iindlela zokutywinwa kunye neemfuno zezinto ezibonakalayo zihlukile;
(2) Ivalve yesango le-wedge eqhelekileyo, i-copper ring material, imodi yokulungisa, indlela yokugaya kufuneka ichazwe;
(3) Idatha yovavanyo lwenyama, lwekhemikhali kunye nempilo lwevalvu yesango elithambileyo kunye nesixhobo sokubeka ipleyiti yevalvu;
40Idatha yabo yokuvavanya umzimba kunye neekhemikhali, ngakumbi iimfuno zempilo yerabha, ukusebenza okuchasene nokuguga, ukumelana nokunxiba;Irabha kunye ne-epDM irabha zidla ngokusetyenziswa, kwaye irabha ehlaziyiweyo ithintelwe ngokungqongqo.
I-6, ukupakisha i-valve shaft
(1) Ngenxa yokuba iivalve kumnatha wombhobho zihlala zivulwa kwaye zivaliwe ngokungaqhelekanga, ukupakishwa kuyadingeka ukuba kusebenze kwiminyaka embalwa, ukupakishwa akugugi, kwaye umphumo wokutywinwa ugcinwa ixesha elide;
(2) Ukupakishwa kwe-valve shaft kufuneka kwakhona kuthwale ukuvuleka nokuvala rhoqo, isiphumo esihle sokutywina;
(3) Ngokubhekiselele kwezi mfuno zingasentla, isifakeli se-valve shaft asitshintshi ubomi okanye ngaphezulu kweminyaka elishumi;
(4) Ukuba ukupakishwa kufuna ukutshintshwa, idizayini yevalve kufuneka ithathele ingqalelo amanyathelo okutshintshwa phantsi kwemeko yoxinzelelo lwamanzi.
Jonga uvavanyo lokusebenza kwevalvu
1. Xa iinkcukacha ezithile zesivalo ziveliswa ngokweebhetshi, ukusebenza kulandelayo kuya kuvavanywa ligunya:
I-torque yokuvula kunye nokuvala i-valve phantsi koxinzelelo lokusebenza;
(2) phantsi koxinzelelo lokusebenza, ukuvulwa okuqhubekayo kunye namaxesha okuvala ivalve kunokuqinisekiswa;
(3) Ivalve kumbhobho wothumelo lwamanzi ekubhaqweni kokumelana nokuhamba.
2. Olu vavanyo lulandelayo kufuneka lwenziwe phambi kokuba isivalo siphume kumzi-mveliso:
(1) Xa ivalve ivulwa, umzimba wevalve kufuneka uthwale kabini ukubonwa koxinzelelo lwangaphakathi lwexabiso loxinzelelo olusebenzayo lwevalve;
(2) Phantsi kwemeko evaliweyo, omabini amacala evalve ngokulandelelanayo phantsi kwe-11 amaxesha exabiso loxinzelelo lwevalve, akukho kuvuza;Kodwa ivalve yebhabhathane yentsimbi, ixabiso lokuvuza alikho likhulu kuneemfuno ezifanelekileyo
I-anticorrosion yangaphakathi nangaphandle ye-valve yokutshekisha
1, umzimba wevalvu (kubandakanya ibhokisi yegiya) ngaphakathi nangaphandle, okokuqala kufuneka kudutyulwe ukuqhushumba kwentlabathi yokucoca umhlwa, sizame ukutshiza nge-electrostatic powder non-toxic epoxy resin, ubukhulu ukuya kuthi ga kwi-0?Ngaphezu kwe-3 mm.Ivalve enkulu ye-electrostatic spraying non-toxic epoxy resin kunzima, kufuneka nayo ibrashwe, itshizwe ngepeyinti ye-epoxy efanayo engenatyhefu.
2. Onke amalungu omzimba wevalve kunye nepleyiti yevalvu ifuna i-anticorrosion ebanzi.Kwelinye icala, ayiyi kuhlwa xa ifakwe emanzini, kwaye akuyi kubakho ukubola kwe-electrochemical phakathi kwezi zinyithi zimbini.Imiba emibini yendawo egudileyo yokunciphisa ukuxhathisa kwamanzi.
3. Iimfuno zempilo ze-anticorrosive epoxy resin okanye ipeyinti kwi-valve body kufuneka ivavanywe ngabasemagunyeni abagunyazisiweyo abahambelanayo.Iipropati zemichiza kunye nezomzimba kufuneka zihlangabezane neemfuno ezifanelekileyo.
Ukupakishwa kweValve kunye nokuthutha
1. Amacala omabini evalve kufuneka alungiswe ngepleyiti yokuthintela ukukhanya.
2. Iivalvu eziphakathi nezincinci kufuneka zibotshwe ngentambo yengca kwaye zihanjiswe ngezikhongozeli.
I-3, ivalve enkulu yobubanzi nayo inesakhelo somthi esilula sokupakishwa okusisigxina, ukuze ugweme umonakalo ngexesha lokuthutha
Ixesha lokuposa: Oct-22-2021