A vala ivalvulicandelo elibalulekileyo kwiinkqubo zemibhobho ezenzelwe ukulawula ukuhamba kolwelo okanye iigesi. Ngokuvula, ukuvala, okanye ukuvala iindlela kancinci, ezi valve ziqinisekisa ukhuseleko, zilawula uxinzelelo, kwaye zithintele ukuvuza. Nokuba zikwimibhobho yezindlu, kwiinkqubo zoshishino, okanye kwimibhobho yeoyile negesi, iivalvu ezivaliweyo ziyimfuneko ekusebenzeni kakuhle kwenkqubo kunye nolawulo olungxamisekileyo.
Iintlobo zeeValve zokuvala
Iivalvu ezicinyiweyo ziza ngeendlela ezahlukeneyo, nganye ilungele ukusetyenziswa okuthile. Nazi iintlobo eziqhelekileyo:
Ivalvu yeBhola
Ivalvu yebhola isebenzisa ibhola ejikelezayo enebhore ukulawula ukuhamba. Inika ukuvalwa ngokukhawuleza, ukuqina, kunye nokwehla okuncinci koxinzelelo. Ilungele iinkqubo zamanzi, igesi kunye neoyile.
Ivalvu yeSango
Iivalvu zesango zinesango elimile okwesikwere eliphakamisayo ukuvumela ukuhamba kwamanzi. Zilungele ulawulo lokuvula/lokucima kwiindawo ezisebenzisa amanzi amaninzi, njengeentambo zokuhambisa amanzi.
Ivalvu yeGlobe
Izaziwa ngokulawula ukuhamba kwamanzi ngokuchanekileyo, iivalvu zeglobe zisebenzisa idiski kunye nendlela yokuhlala. Zixhaphakile kwiinkqubo ze-HVAC kunye nemibhobho yepetroli.
Ivalvu yebhabhathane
Ivalvu encinci, ekhaphukhaphu enediski ejikelezayo. Iivalvu zebhabhathane zibalaseleyo kwiinkqubo ezinkulu zokucoca amanzi kunye nokukhusela umlilo.
Jonga iValve
Ivumela ukuhamba kwendle kwicala elinye kuphela, ithintela ukubuya kwamanzi. Isetyenziswa kwiinkqubo zokulahla amanzi amdaka kunye nemibhobho yokukhupha amanzi epompo.
Ivalvu yeDiaphragm
Isebenzisa i-diaphragm eguquguqukayo ukwahlula ukuhamba kwamanzi. Ilungele ulwelo olunokubola okanye oluludaka xa kusetyenzwa ngamakhemikhali.
Ivalvu yenaliti
Yenzelwe ukulawula ukuhamba kwamanzi ngokuchanekileyo nge-plunger efana nenaliti enciphileyo. Ixhaphakile kwiinkqubo zezixhobo kunye ne-hydraulic.
I-ESDV (iValvu yoKuvala iXakeka)
Ivalvu ekhethekileyo yokuvala ngokukhawuleza ngexesha leengxakeko, edla ngokwenziwa ngokuzenzekelayo. Ibaluleke kakhulu kwiindawo zokucoca ioyile kunye nemibhobho yegesi.
Ukusetyenziswa kweeValve zokuvala
Iivalvu ezivaliweyo zisebenza kwiindima ezahlukeneyo kumashishini onke:
- Eyokuhla: Beka amanzi ecaleni ngexesha lokulungiswa (umz., iivalvu zebhola phantsi kwezinki).
- Imizi-mveliso: Lawula umphunga, iikhemikhali, okanye amafutha (iivalvu zeglobe, iivalvu zediaphragm).
- Ioyile kunye neGesi: Qinisekisa ukhuseleko ngee-ESDV xa kuvuza okanye kuphezulu uxinzelelo.
- Ukhuseleko loMliloIivalvu zebhabhathane zivumela ulawulo lokuhamba kwamanzi ngokukhawuleza kwiinkqubo zokutshiza.
- AmayezaIivalvu zeenaliti zigcina ukuchaneka kokuphathwa kolwelo.
Zisebenza njani iiValve zokuvala
Indlela yokusebenza iyahluka ngohlobo kodwa ilandela umgaqo jikelele:
1. UkusebenzaIivalvu zisebenza ngesandla (ngesondo lesandla, i-lever) okanye ngokuzenzekelayo (ii-actuators zombane/zomoya).
2. Ulawulo lokuhamba kwamanzi:
–Iivalvu zeBhola/zeBhabhathane: Jikelezisa nge-90° ukuze uvule/uvale.
–Iivalvu zeSango/zeGlobe: Intshukumo ethe tye inyusa/yehlisa isango okanye idiski.
–Jonga iiValvu: Thembela kuxinzelelo lokuhamba kwamanzi ukuze uvule/uvale.
3. Ukutywina: Izivalo eziqinileyo (irabha, i-PTFE) zithintela ukuvuza xa zivaliwe.
Ukukhetha iValve echanekileyo
Ukukhetha ivalvu yokuvala kuxhomekeke kwizinto ezifana nezi:
- Uhlobo lolwelo: Ulwelo oludlakadlaka lufuna iivalvu zediaphragm; iigesi zilungele iivalvu zebhola.
- Uxinzelelo/UbushushuIinkqubo zoxinzelelo oluphezulu zifuna ii-ESDV eziqinileyo okanye iivalvu zesango.
- Ukuphindaphinda kokusetyenziswaIivalvu zebhola zihlala ixesha elide xa zisetyenziswa ngesantya esiphezulu.
Isiphelo
Ukususela kwii-ESDV ezikwiindawo ezinobungozi ukuya kwiivalvu zebhola ezilula emakhaya, iivalvu ezivaliweyo zisisiseko seenkqubo zolawulo lolwelo. Ukuqonda iintlobo zazo, ukusetyenziswa kwazo, kunye neendlela ezisetyenziswa ngazo kuqinisekisa ukusebenza kakuhle kunye nokhuseleko. Ukugcinwa rhoqo kunye nokukhetha iivalvu ngokuchanekileyo kuphucula ngakumbi ixesha elide lenkqubo.
Ixesha leposi: Februwari-21-2025