A ivelufa butterflysisixhobo sokulawula ulwelo. Isebenzisa ukujikeleza kwe-1/4 ukulawula ukuhamba kweendaba kwiinkqubo ezahlukeneyo. Ukwazi izinto kunye nemisebenzi yamalungu kubalulekile. Kuyanceda ukukhetha ivalve efanelekileyo yokusetyenziswa okuthile. Icandelo ngalinye, ukusuka kumzimba wevalve ukuya kwisiqu sevalvu, linomsebenzi othile. Zenziwe ngezinto ezifanelekileyo zokusetyenziswa. Zonke zidlala indima ebalulekileyo ekuqinisekiseni ukusebenza ngokufanelekileyo nokugcinwa kwazo. Ukuqonda ngokufanelekileyo la macandelo kunokuphucula ukusebenza kwenkqubo kunye nobomi benkonzo. Iivalve zebhabhathane zisetyenziswa kwiindawo ezininzi ngenxa yokuguquguquka kwazo. Amashishini afana nokucocwa kwamanzi, ukusetyenzwa kweekhemikhali, kunye nokutya kunye nesiselo zisebenzisa ezi zivalo. Iivalve zebhabhathane ziyakwazi ukumelana noxinzelelo kunye namaqondo obushushu ahlukeneyo. Ke, zilungele zombini iindawo ezinemfuno ephezulu kunye nephantsi. Ukongezelela, ixabiso eliphantsi kunye nokulula ukufakela kwenza ukuba kubonakale phakathi kweevalve ezininzi.
1. Ivalve yeButterfly iGama leNdawo: Umzimba weValve
Umzimba wevalve yebhabhathane liqokobhe. Ixhasa idiski yevalve, isihlalo, isiqu, kunye ne-actuator. Iivalufa butterfly umzimbaisetyenziselwa ukudibanisa kumbhobho ukugcina ivalve kwindawo yayo. Kwakhona, umzimba wevalve kufuneka umelane noxinzelelo kunye neemeko ezahlukeneyo. Ngoko ke, uyilo lwayo lubalulekile ekusebenzeni.
Isixhobo somzimba wevalve
Isixhobo somzimba wevalvu sixhomekeke kumbhobho nakwimidiya. Kukwaxhomekeke kwimekobume.
Ezi zilandelayo zizinto ezisetyenziswa ngokuqhelekileyo.
-Jula i-ayini, olona hlobo lufikelelekayo lwevalve yentsimbi yebhabhathane. Inokumelana nokunxiba kakuhle.
-Intsimbi yentsimbi, xa kuthelekiswa nentsimbi etyhidiweyo, inamandla angcono, ukumelana nokugqoka kunye ne-ductility engcono. Ngoko ke ilungele izicelo zoshishino jikelele.
-Yenziwe ngentsimbi eshayinayo, inozinzo olukhulu kunye nokumelana nokubola. Kungcono kulwelo oludlekayo kunye nokusetyenziswa kococeko.
-WCB,kunye nobunzima obuphezulu kunye namandla, ifanelekile kuxinzelelo oluphezulu, izicelo zobushushu obuphezulu. Kwaye iyathandeka.
2. IValve yeButterfly iGama leSigaba: Idiskhi yeValve
Ibutterfly valve discibekwe kumbindi womzimba wevalvu kwaye ijikelezisa ukuvula okanye ukuvala ivalve yebhabhathane. Izinto eziphathekayo zidibana ngqo nolwelo. Ngoko ke, kufuneka kukhethwe ngokusekelwe kwiipropati eziphakathi. Izinto eziqhelekileyo ziquka i-sphere nickel plating, inayiloni, irabha, intsimbi engatyiwa, kunye nobhedu lwe-aluminiyam. Uyilo olubhityileyo lwediski yevalve lunokunciphisa ukuxhathisa ukuhamba, ngaloo ndlela konga amandla kunye nokuphucula ukusebenza kakuhle kwevalve yebhabhathane.
iintlobo zediskhi zevalve.
Uhlobo lwediskhi yevalve: Kukho iintlobo ezininzi zeediski zevalve kwizicelo ezahlukeneyo.
-Idiskhi yevalve ephakathiilungelelaniswe nombindi womzimba wevalvu. Ilula kwaye iyabiza.
-Idiskhi yevalvu ephindwe kabiniinomcu werabha ofakwe kwincam yepleyiti yevalvu. Inokuphucula ukusebenza kokutywinwa.
Idiski eccentric kathathuyintsimbi. Itywina ngcono kwaye inxiba kancinci, ngoko ilungile kwiindawo ezinoxinzelelo oluphezulu.
3. Ivalve yeButterfly iGama leNdawo: Isiqu
Isiqu sidibanisa i-actuator yebhokisi yediski. Idlulisela ukujikeleza kunye namandla afunekayo ukuvula okanye ukuvala ivalve yebhabhathane. Eli candelo lidlala indima ephambili ekusebenzeni komatshini wevalve yebhabhathane. Isiqu kufuneka simelane ne-torque eninzi kunye noxinzelelo ngexesha lokusebenza. Ke, iimfuno zezinto ezifunekayo ziphezulu.
Isixhobo sesikhondo sevalve
Isiqu ngokuqhelekileyo senziwe ngezinto ezomeleleyo, njengensimbi engenasici kunye nobhedu lwe-aluminium.
-Yenziwe ngentsimbi eshayinayoyomelele kwaye imelana nomhlwa.
-Aluminiyam yobheduiyayichasa kakuhle kakhulu. Baqinisekisa ukuthembeka kwexesha elide.
-Ezinye izixhoboinokubandakanya intsimbi yekhabhoni okanye ialloys. Bakhethwa kwiimfuno ezithile zokusebenza.
4. IValve yeButterfly iGama leNdawo: Isitulo
Isihlalo kwivalve yebhabhathane senza itywina phakathi kwediski kunye nomzimba wevalvu. Xa ivalve ivaliwe, i-disc icinezela isihlalo. Oku kuthintela ukuvuza kwaye kugcine inkqubo yombhobho ingaguquki.
Iisitulo butterfly valvekufuneka imelane noxinzelelo kunye namaqondo obushushu awahlukeneyo. Ukukhethwa kwezinto zokuhlala kuxhomekeke kwisicelo esithile. I-Rubber, i-silicone, i-Teflon kunye nezinye i-elastomers zikhetho eziqhelekileyo.
Iintlobo zezihlalo zevalvu
Kukho iintlobo ezininzi zezihlalo ukuhlangabezana izicelo ezahlukeneyo. Ezona ndidi zixhaphakileyo zezi:
-Izihlalo zevalve ezithambileyo: Yenziwe ngerabha okanye iTeflon, iguquguquka kwaye inamandla. Ezi zihlalo zifanelekile kuxinzelelo oluphantsi, izicelo zobushushu obuqhelekileyo ezifuna ukuvalwa okuqinileyo.
-Zonke izihlalo zevalve yentsimbi: zenziwe ngeentsimbi, njengentsimbi engatyiwayo. Ziyakwazi ukumelana namaqondo aphezulu kunye noxinzelelo. Ezi zihlalo zevalvu zilungele iimeko ezifuna ukuqina.
-Izitulo zevalve ye-Multi-layer: Yenziwe ngegraphite kunye nentsimbi efakwe ngexesha elinye. Badibanisa iimpawu zezihlalo zevalve ezithambileyo kunye nezihlalo zevalve yentsimbi. Ngoko ke, Esi situlo esinemigangatho emininzi sifezekisa ukulingana phakathi kokuguquguquka kunye namandla. Ezi zihlalo zevalvu zezezicelo zokutywina ezisebenza kakhulu. Ziyakwazi ukutywina naxa zinxibile.
5. I-Actuator
I-actuator yindlela esebenza ngayo ivalve yebhabhathane. Ijika ipleyiti yevalve ukuvula okanye ukuvala ukuhamba. I-actuator inokuba yi-manual (isibambo okanye igiya leentshulube) okanye i-automatic (i-pneumatic, i-electric, okanye i-hydraulic).
Iintlobo kunye nemathiriyeli
-Phatha:Yenziwe ngentsimbi okanye intsimbi ephosiweyo, ifanelekile kwiivalve zebhabhathane ze-DN≤250.
-Izixhobo zeentshulube:Ilungele iivalvu zebhabhathane zalo naluphi na uhlobo, ukonga abasebenzi kunye nexabiso eliphantsi. Iibhokisi zegiya zinokubonelela ngoncedo lomatshini. Benza ukuba kube lula ukusebenzisa iivalvu ezinkulu okanye ezinoxinzelelo oluphezulu.
-Iizixhobo zomoya:sebenzisa umoya ocinezelweyo ukuze usebenzise iivalvu. Ngokuqhelekileyo zenziwe nge-aluminium okanye ngentsimbi.
-Izixhobo zombane:sebenzisa iimoto zombane kwaye zifakwe kwizindlu ezenziwe ngezinto ezifana ne-aluminium okanye insimbi engenasici. Kukho iintlobo ezidibeneyo kunye nezikrelekrele. Iintloko zombane ezingenamanzi kunye nezingaqhubi ziyakwazi ukukhethwa kwiindawo ezikhethekileyo.
Ii-actuator zeHydraulic:sebenzisa ioyile yehydraulic ukusebenzisa iivalvu zebhabhathane. Amalungu abo ayenziwe ngentsimbi okanye ezinye izinto ezinamandla. Ikwahlulahlulwe yaba ziintloko zomoya ezibambeleyo kunye neziphindwe kabini.
6. Ukutyholwa
Izihlahla zixhasa kwaye zinciphisa ukukhuhlana phakathi kweendawo ezihambayo, njengeziqu zevalvu kunye nemizimba. Baqinisekisa ukusebenza kakuhle.
Izinto eziphathekayo
-PTFE (Teflon):ukukhuhlana okuphantsi kunye nokuchasana kakuhle kweekhemikhali.
- Ubhedu:amandla aphezulu kunye nokumelana nokunxiba kakuhle.
7. Gaskets kunye O-amakhonkco
I-Gaskets kunye ne-O-rings zizinto zokutywinwa. Zithintela ukuvuza phakathi kwamacandelo evalvu naphakathi kweevalvu kunye nemibhobho.
Izinto eziphathekayo
-EPDM:ngokuqhelekileyo isetyenziselwa ukusetyenziswa kwamanzi kunye ne-steam.
-NBR:ilungele ukusetyenziswa kweoli kunye ne-fuel.
-PTFE:Ukumelana neekhemikhali eziphezulu, ezisetyenziselwa ukusetyenziswa kweekhemikhali ezinobundlobongela.
-Viton:Iyaziwa ngokuchasa ukushisa okuphezulu kunye neekhemikhali ezinobundlobongela.
8. Iibholithi
Iibholithi zibamba amalungu evalve yebhabhathane kunye. Baqinisekisa ukuba ivalve yomelele kwaye ayivuzi.
Izinto eziphathekayo
- Yenziwe ngentsimbi eshayinayo:Ikhethwa ngenxa yokuxhathisa umhlwa kunye nokomelela kwayo.
-Intsimbi yeCarbon:Isetyenziswa kwindawo ezingadleki kangako.
9. Izikhonkwane
Izikhonkwane zidibanisa i-disc kwi-stem, zivumela ukuhamba okujikelezayo okugudileyo.
Izinto eziphathekayo
- Yenziwe ngentsimbi eshayinayo:Ukumelana nokubola kunye namandla aphezulu.
- Ubhedu:Nxiba ukuxhathisa kunye nokusebenza kakuhle.
10. Iimbambo
Iimbambo zibonelela ngenkxaso eyongezelelweyo yesakhiwo kwidiski. Banokuthintela i-deformation phantsi koxinzelelo.
Izinto eziphathekayo
-Intsimbi:Amandla aphezulu kunye nokuqina.
-Aluminiyam:Ifanelekile kwizicelo ezikhaphukhaphu.
11. Iingubo kunye neengubo
Iilayini kunye neengubo zokwaleka zikhusela umzimba wevalvu kunye namalungu e-corrosion, ukhukuliseko, kunye nokuguga.
-Ilayini zerabha:Okufana ne-EPDM, i-NBR, okanye i-neoprene, esetyenziswa kwi-corrosive okanye kwi-abrasive applications.
- PTFE ukutyabeka:ukumelana neekhemikhali kunye nokukhuhlana okuphantsi.
12. Iimpawu zesikhundla
Isalathisi sendawo sibonisa imeko evulekileyo okanye evaliweyo yevalve. Oku kunceda iinkqubo ezikude okanye ezizenzekelayo esweni indawo yevalvu.
Iintlobo
-Oomatshini:isalathisi esilula somatshini esiqhotyoshelwe kwi-valve stem okanye i-actuator.
- Umbane:isivamvo