A ivalvu yebhabhathanesisixhobo sokulawula ulwelo. Sisebenzisa ujikelezo lwe-1/4 turn ukulawula ukuhamba kwemidiya kwiinkqubo ezahlukeneyo. Ukwazi izixhobo kunye nemisebenzi yamalungu kubalulekile. Kunceda ukukhetha ivalvu efanelekileyo yokusetyenziswa okuthile. Icandelo ngalinye, ukusuka emzimbeni wevalvu ukuya kwisiqu sevalvu, linomsebenzi othile. Zenziwe ngezinto ezifanelekileyo zokusetyenziswa. Zonke zidlala indima ebalulekileyo ekuqinisekiseni ukusebenza kakuhle kunye nokugcinwa. Ukuqonda ngokuchanekileyo ezi nxalenye kunokuphucula ukusebenza kwenkqubo kunye nobomi benkonzo. Iivalvu zeButterfly zisetyenziswa kwiindawo ezininzi ngenxa yokuguquguquka kwazo. Amashishini afana nonyango lwamanzi, ukucubungula iikhemikhali, kunye nokutya neziselo zisebenzisa ezi valve. Iivalvu zeButterfly zinokuphatha uxinzelelo kunye namaqondo obushushu ahlukeneyo. Ke, zilungele zombini iindawo ezifunwa kakhulu nezingabizi kakhulu. Ukongeza, iindleko eziphantsi kunye nokulula kokufakelwa kwenza ukuba ibonakale phakathi kweevalvu ezininzi.
1. I-Butterfly Valve Igama leCandelo: Umzimba we-Valve
Umzimba wevalvu yebhabhathane yiqokobhe. Ixhasa idiski yevalvu, isihlalo, isiqu, kunye ne-actuator.umzimba wevalvu yebhabhathaneisetyenziselwa ukuqhagamshela kumbhobho ukugcina ivalvu ikwindawo yayo. Kwakhona, umzimba wevalvu kufuneka umelane noxinzelelo kunye neemeko ezahlukeneyo. Ngoko ke, uyilo lwayo lubalulekile ekusebenzeni.
Izinto zomzimba wevalvu
Izinto zomzimba wevalvu zixhomekeke kumbhobho kunye nemidiya. Kukwaxhomekeke nakwindalo esingqongileyo.
Ezi zilandelayo zizinto ezisetyenziswa rhoqo.
-Jula i-ayini, uhlobo lwevalvu yebhabhathane yentsimbi engabizi kakhulu. Iyakwazi ukumelana nokuguguleka kakuhle.
-Intsimbi ethambileyo, xa ithelekiswa nentsimbi ephosiweyo, inamandla angcono, iyamelana nokuguguleka kwaye ilula ngakumbi. Ngoko ke ifanelekile kwiindlela zokusebenza ngokubanzi kwimizi-mveliso.
-Yenziwe ngentsimbi eshayinayo, izinzile kakhulu kwaye iyamelana nokugqwala. Ingcono kakhulu kwiincindi ezirhabaxa kunye nokusetyenziswa kococeko.
-WCB,ngenxa yobunzima bayo obuphezulu kunye namandla ayo, ifanelekile ukusetyenziswa ngoxinzelelo oluphezulu, kunye nobushushu obuphezulu. Kwaye iyaxhunyelwa.
2. Igama leCandelo leValve yeButterfly: Idiski yeValve
Iidiski yevalvu yebhabhathaneikwindawo ephakathi yomzimba wevalvu kwaye iyajikeleza ukuvula okanye ukuvala ivalvu yebhabhathane. Le nto idibana ngqo nolwelo. Ngoko ke, kufuneka ikhethwe ngokusekelwe kwiimpawu zesixhobo. Izinto eziqhelekileyo ziquka i-sphere nickel plating, i-nylon, irabha, intsimbi engatyiwayo, kunye ne-aluminium bronze. Uyilo oluncinci lwediski yevalvu lunokunciphisa ukumelana nokuhamba kwamanzi, ngaloo ndlela lugcina amandla kwaye luphucule ukusebenza kakuhle kwevalvu yebhabhathane.
iintlobo zeediski zevalvu.
Uhlobo lwediski yevalvu: Kukho iintlobo ezahlukeneyo zeediski zevalvu zezicelo ezahlukeneyo.
Idiski yevalvu egxile kwiConcentricilungelelaniswe nombindi womzimba wevalvu. Ilula kwaye ayibizi kakhulu.
-Idiski yevalvu engaqhelekanga kabiniinomcu werabha ofakwe kumphetho wepleyiti yevalvu. Ingaphucula ukusebenza kokutywina.
Idiski engaqhelekanga kathathuyintsimbi. Ivala ngcono kwaye ayigugi kakhulu, ngoko ke ilungile kwiindawo ezinoxinzelelo oluphezulu.
3. Igama leCandelo leValve yeButterfly: Isiqu
Isiqu sidibanisa i-actuator yebhokisi yediski. Sidlulisela ukujikeleza kunye namandla afunekayo ukuvula okanye ukuvala ivalvu yebhabhathane. Eli candelo lidlala indima ebalulekileyo ekusebenzeni kwevalvu yebhabhathane. Isiqu kufuneka simelane ne-torque eninzi kunye noxinzelelo ngexesha lokusebenza. Ngoko ke, iimfuno zezinto ezifunekayo ziphezulu.
Izinto zesiqu sevalvu
Isiqu sidla ngokwenziwa ngezinto ezomeleleyo, njengentsimbi engatyiwayo kunye nebronze yealuminiyam.
-Yenziwe ngentsimbi eshayinayoinamandla kwaye iyamelana nokugqwala.
-Ubhedu lwe-AluminiyamIyamelana nayo kakuhle kakhulu. Ziqinisekisa ukuthembeka kwexesha elide.
-Ezinye izintozingabandakanya intsimbi yekhabhoni okanye ii-alloys. Zikhethwa ngokweemfuno ezithile zokusebenza.
4. I-Butterfly Valve Igama leCandelo: Isihlalo
Isihlalo esikwivalvu yebhabhathane senza uphawu phakathi kwediski kunye nomzimba wevalvu. Xa ivalvu ivaliwe, idiski iyayicinezela isihlalo. Oku kuthintela ukuvuza kwaye kugcina inkqubo yepayipi ingasebenzi.
Iisihlalo sevalvu yebhabhathanekufuneka imelane noxinzelelo kunye namaqondo obushushu ahlukeneyo. Ukukhetha izinto zesihlalo kuxhomekeke kwisicelo esithile. Irabha, i-silicone, i-Teflon kunye nezinye ii-elastomers zizinto eziqhelekileyo.
Iintlobo zezihlalo zevalvu
Kukho iintlobo ezahlukeneyo zezihlalo ezihlangabezana nezicelo ezahlukeneyo. Ezona zixhaphakileyo zezi:
-Izihlalo zevalvu ezithambileyo: Zenziwe ngerabha okanye iTeflon, ziyakwazi ukuguquguquka kwaye ziyakwazi ukumelana nobushushu obuqhelekileyo. Ezi zihlalo zilungele ukusetyenziswa koxinzelelo oluphantsi, ubushushu obuqhelekileyo obufuna ukuvalwa ngokuqinileyo.
-Zonke izihlalo zevalvu zesinyithiZenziwe ngeentsimbi, njengentsimbi engagqwaliyo. Ziyakwazi ukumelana namaqondo obushushu aphezulu kunye noxinzelelo. Ezi zihlalo zeevalvu zifanelekile kwiindawo ezifuna ukuqina.
-Izihlalo zevalvu ezinamaleko amaninzi: Zenziwe ngegrafiti nentsimbi zibekwe ngaxeshanye. Zidibanisa iimpawu zezihlalo zeevalvu ezithambileyo kunye nezihlalo zeevalvu zentsimbi. Ngoko ke, esi sihlalo sineengqimba ezininzi sifezekisa ulungelelwaniso phakathi kokuguquguquka kunye namandla. Ezi zihlalo zeevalvu zenzelwe ukusetyenziswa kokutywina okuphezulu. Zinokutywina nokuba zinxityiwe.
5. I-Actuator
I-actuator yindlela esebenza ngayo ivalvu yebhabhathane. Ijika ipleyiti yevalvu ukuze ivule okanye ivale ukuhamba. I-actuator ingaba yesandla (isixhobo sokuphatha okanye isixhobo seempethu) okanye ibe yezenzekelayo (yomoya, yombane, okanye ye-hydraulic).
Iintlobo kunye nezixhobo
-Phatha:Yenziwe ngentsimbi okanye ngentsimbi ephosiweyo, ifanelekile kwiivalvu zebhabhathane ze-DN≤250.
-Izixhobo zeentshulube:Ifanelekile kwiivalvu zebhabhathane zalo naluphi na uhlobo, igcina abasebenzi kwaye inexabiso eliphantsi. Iibhokisi zegiya zinokubonelela ngenzuzo yoomatshini. Zenza kube lula ukusebenzisa iivalvu ezinkulu okanye ezinoxinzelelo oluphezulu.
- Ii-actuators zomoya:sebenzisa umoya ocinezelweyo ukusebenzisa iivalvu. Zidla ngokwenziwa nge-aluminium okanye ngentsimbi.
- Ii-actuators zombane:zisebenzisa iimoto zombane kwaye zifakelwa kwiindawo ezenziwe ngezinto ezifana ne-aluminium okanye intsimbi engatyiwayo. Kukho iintlobo ezidibeneyo nezikrelekrele. Iintloko zombane ezingangeni manzi nezingenakuqhuma nazo zinokukhethwa kwiindawo ezikhethekileyo.
Ii-actuators ze-hydraulic:sebenzisa ioyile ye-hydraulic ukusebenzisa iivalvu zebhabhathane. Iindawo zazo zenziwe ngentsimbi okanye ezinye izinto eziqinileyo. Zahlulwe zibe ziintloko ze-pneumatic ezisebenza kanye kunye nezisebenza kabini.
6. Iibhulorho
Iibhushi zixhasa kwaye zinciphisa ukungqubana phakathi kwezinto ezihambayo, njengeziqu zeevalvu kunye nemizimba. Ziqinisekisa ukusebenza kakuhle.
Izixhobo
- I-PTFE (iTeflon):ukungqubana okuphantsi kunye nokumelana okuhle kweekhemikhali.
- Ubhedu:amandla aphezulu kunye nokumelana kakuhle nokuguguleka.
7. Iigaskets kunye nee-O-rings
Iigasket kunye nee-O-rings zizinto ezivalayo. Zithintela ukuvuza phakathi kwezixhobo zeevalvu naphakathi kweevalvu kunye neepayipi.
Izixhobo
- I-EPDM:isetyenziswa kakhulu emanzini nakwizinto ezisetyenziswa ngomphunga.
- I-NBR:ifanelekile ukusetyenziswa kweoyile kunye nepetroli.
- I-PTFE:Ukumelana okuphezulu kweekhemikhali, kusetyenziswa kwiikhemikhali ezirhabaxa.
- UViton:Yaziwa ngokuxhathisa kwayo kumaqondo obushushu aphezulu kunye neekhemikhali ezirhabaxa.
8. Iibholti
Iibholiti zibamba iindawo zevalvu yebhabhathane kunye. Ziqinisekisa ukuba ivalvu iqinile kwaye ayivuzi.
Izixhobo
- Yenziwe ngentsimbi eshayinayo:Ikhethwa ngenxa yokumelana kwayo nokugqwala kunye namandla ayo.
- Intsimbi yekhabhoni:Isetyenziswa kwiindawo ezingangcolisi kakhulu.
9. Iiphini
Ezi pini zidibanisa idiski nesiqu, zivumela intshukumo egudileyo yokujikeleza.
Izixhobo
- Yenziwe ngentsimbi eshayinayo:Ukumelana nokugqwala kunye namandla aphezulu.
- Ubhedu:Ukumelana nokunxitywa kunye nokusebenza kakuhle komatshini.
10. Iimbambo
Iimbambo zibonelela ngenkxaso eyongezelelweyo yesakhiwo kwidiski. Zingathintela ukuguguleka phantsi koxinzelelo.
Izixhobo
- Intsimbi:Amandla aphezulu kunye nokuqina.
- I-Aluminiyam:Ifanelekile kwizicelo ezilula.
11. Iingubo zokwaleka kunye neengubo zokwaleka
Ii-liners kunye neengubo zikhusela umzimba wevalvu kunye nezinye iindawo ekuboleni, ekukhukulisekeni nasekugugeni.
- Iilinki zerabha:Ezifana ne-EPDM, i-NBR, okanye i-neoprene, ezisetyenziswa kwizicelo zokubola okanye zokurhawuzelela.
- Ukwaleka kwe-PTFE:ukumelana neekhemikhali kunye nokungqubana okuphantsi.
12. Izalathi zesikhundla
Isalathisi sendawo sibonisa imeko evulekileyo okanye evaliweyo yevalvu. Oku kunceda iinkqubo ezikude okanye ezenzekelayo ukuba zijonge indawo yevalvu.
Iintlobo
- Oomatshini:isalathisi esilula somatshini esiqhotyoshelwe kwisiqu sevalvu okanye kwi-actuator.
- Umbane:inzwa
13. Isiphelo
Ezi zinto zidweliswe apha ngasentla zenza ivalvu epheleleyo yebhabhathane. Izinto ezahlukeneyo ezisetyenziswayo kwicandelo ngalinye zichonga eyona ifanelekileyoindawo yokusebenzayevalvu yebhabhathane.
Ukuba imeko-bume yangaphandle inzima, kufuneka kusetyenziswe imizimba yeevalvu ezikumgangatho ophezulu. Ukuba indlela ephakathi igqithisile kakhulu, umgangatho wesihlalo sevalvu, idiski yevalvu, kunye nesiqu sevalvu kufuneka uphuculwe.