Ukuzivocavoca 4-1: Ulawulo olungathanga ngqo usebenzisa iiValuvu eziSebenzisiweyo zoLingo
2024-07-29Ukuqonda iiValufa eziSebenzisiweyo zokuLingwa
Iivalvu eziqhutywa ngumqhubi wenqwelomoya (pilot-operated valves) (POVs) luhlobo lwesivalo solawulo esisebenzisa isivalo esincinci, esincedisayo (umqhubi) ukulawula ukuhamba kolwelo ngevalve enkulu engundoqo. Ivalve yokulinga, esebenza ngophawu loxinzelelo okanye elinye igalelo, ilawula indawo yespool yevalve engundoqo okanye ipiston. Le ndlela yokulawula engathanga ngqo inika iingenelo ezininzi, kubandakanywa ulawulo oluchanekileyo, ukwanda kobuntununtunu, kunye nokukwazi ukuphatha amazinga aphezulu okuhamba.
Iivalufa eziSebenziswa nguPilot zisebenza njani
1.Ukuqaliswa kweValve yokuLingwa:Isignali yoxinzelelo, isignali yombane, okanye igalelo lomatshini livula ivalve yokulinga.
2.IValve eLingwayo iLawula iValve engundoqo:Intshukumo yevalve yokulinga imodareyitha ukuhamba kolwelo ukuya kwidiaphragm okanye ipiston kwivalve engundoqo.
3.INdawo yeValve engundoqo:Ukwahlukana koxinzelelo okwenziwa yi-valve yokulinga kubangela ukuba i-valve eyintloko ivule okanye ivale, ilawula ukuhamba komlambo oyintloko.
Izinto eziluncedo kwiiValufa eziSebenzisiweyo zokuLingwa
• Ulawulo oluchanekileyo:Iivalvu eziqhutywa ngumqhubi wenqwelomoya zibonelela ngolawulo olulungelelanisiweyo lokuhamba kolwelo, luzenza zibe zezilungele izicelo ezifuna ummiselo ochanekileyo.
• Amaxabiso okuHamba aphezulu:Ezi zivalo ziyakwazi ukuphatha amazinga aphezulu okuhamba ngelixa zigcina ulawulo oluchanekileyo.
• Ukusebenza kude:Iivalve eziqhutywa ngumqhubi wepilot ziyakwazi ukulawulwa kude kusetyenziswa imiqondiso eyahlukeneyo yokufaka, eyenza ukuzenzekelayo kunye nokudibanisa kwiinkqubo ezinkulu zokulawula.
• Uvakalelo olongeziweyo:Iivalve eziqhutywa ngumqhubi wepilot zinovelwano kakhulu kwiinguqu kwimiqondiso yokufaka, evumela amaxesha okuphendula ngokukhawuleza.
• Iimpawu zoKhuseleko:Iivalvu ezininzi eziqhutywa ngumqhubi wenqwelomoya zibandakanya iimpawu zokhuseleko ezifana neendlela ezisilelayo ukuthintela iimeko eziyingozi.
Usetyenziso lweeValufa eziLingwayo eziSebenzayo
Iivalve eziqhutywa nguPilot zifumana ukusetyenziswa kakhulu kumashishini ahlukeneyo, kubandakanywa:
• Iinkqubo zeHydraulic:
° Ukulawula iisilinda zehydraulic ukuze zibekwe kwindawo echanekileyo
° Ukulawula uxinzelelo kwiisekethe zehydraulic
° Ukuphumeza imisebenzi entsonkothileyo yolandelelwano
• Iinkqubo zomoya:
° Ukulawula ii-actuator zepneumatic zemisebenzi ezenzekelayo
° Ukulawula uxinzelelo lomoya kwiisekethe zomoya
• Ulawulo Lwenkqubo:
° Ukulawula amazinga okuhamba kwiinkqubo zeekhemikhali
° Ukulawula uxinzelelo kwimibhobho
° Ukugcina ubushushu kwiinkqubo zamashishini
ImiSebenzi yoMthambo kunye neeNgqwalasela
Ukuwugqibezela ngempumelelo uMsebenzi 4-1, qwalasela le misebenzi ilandelayo kunye nemibandela:
• Chonga aMalungu:Ziqhelanise namacandelo ahlukeneyo evalve eqhutywa ngumqhubi wenqwelomoya, kubandakanywa ivalve yokulinga, ivalve engundoqo, kunye neepaseji eziqhagamshelayo.
• Qonda umGaqo wokuSebenza:Bamba imigaqo esisiseko yendlela ukwahluka koxinzelelo kunye nokuhamba kwamanzi okuhlanganayo ukulawula ivalve engundoqo.
• Hlalutya Iindidi ezahlukeneyo:Phonononga iindidi ngeendidi zeevalvu eziqhutywa ngumqhubi wenqwelomoya, ezinje ngoxinzelelo oluhlawulelwayo, olulawulwayo, kunye neevalvu ezisebenza ngombane.
• Qwalasela izicelo:Cinga ngezicelo ezithile apho iivalvu eziqhutywa ngumqhubi wenqwelomoya ziya kuba luncedo kwaye zingaphucula njani ukusebenza kwenkqubo.
Yila iSekethe yoLawulo:Yila i-hydraulic elula okanye i-pneumatic circuit edibanisa i-valve esebenza ngomqhubi ukulawula inkqubo ethile okanye umsebenzi.
Imibuzo enokubakho yokuzilolonga
• Ivalve eqhutywa ngumqhubi wenqwelomoya yahluke njani kwisivalo esisebenza ngokuthe ngqo?
• Zeziphi iingenelo zokusebenzisa isivalo esilingwayo esisebenza kwisixokelelwano samanzi aphantsi komhlaba?
• Yila isekethi yevalvu eqhutywa ngumqhubi wenqwelo-moya ukulawula isantya sesilinda esiqhutywa ngamanzi.
• Cacisa indlela esebenza ngayo isivalo soncedo esiqhutywa ngulingelo kunye nendima yaso kwiinkqubo zokhuseleko.
• Xoxa ngemiba enefuthe ekukhethweni kwesivalo esiqhutywa ngulingo kwisicelo esithile.
Ngokugqibezela uMzobo 4-1, uya kufumana ukuqonda okuqinileyo kwemigaqo, usetyenziso, kunye noncedo lweevalvu eziqhutywa ngulingo. Olu lwazi luya kukuxhobisa ukuba uyile kwaye usebenzise iinkqubo zokulawula ezisebenzayo kwiindawo ezahlukeneyo zemizi-mveliso.
Phawula:Ukubonelela ngempendulo elungiselelwe ngakumbi, nceda unike iinkcukacha ezongezelelweyo malunga neemfuno ezithile zomsebenzi wakho, ezinje:
• Uhlobo lolwelo olulawulwayo (i-oyile yolwelo, umoya, njl.njl.)
• Inqanaba elifunekayo lolawulo (ukuvula/ukuvala, uthelekiso, njl.njl.)
• Naziphi na izithintelo okanye imida
Ngolu lwazi, ndinokubonelela ngesikhokelo esijolise ngakumbi kunye nemizekelo.
