Kwinqanawa, yonke inkqubo inenjongo enye — ukhuseleko.ivalvu yokujonga umoya wetankiayilonto ingaqhelekanga. Isenokubonakala incinci, kodwa idlala indima ebalulekileyo ekuthinteleni iitanki zepetroli, ze-ballast, kunye nezamanzi ekungcolisweni koxinzelelo olugqithisileyo okanye nge-vacuum.
Kodwa njengazo zonke izixhobo zasemanzini, ezi valve zifuna ukuhlolwa rhoqo nokuvavanywa ukuqinisekisa ukuba zisebenza kakuhle. Kule sikhokelo, siza kuchazaindlela yokuvavanya ivalvu yokujonga umoya wetanki, kutheni uvavanyo lubalulekile, kwaye yintoni omele uyijonge — ngokucacileyo nangokusebenzisekayo.
Ukuqonda iValve yokujonga umoya weTank
A ivalvu yokujonga umoya wetankiIfakwe ekupheleni komngxuma womoya wetanki, idla ngokuba nesixhobo sokuthintela ilangatye okanye intloko yomoya. Umsebenzi wayo uphindwe kabini:
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Ukukhupha umoya ogqithisileyo— xa uxinzelelo lwetanki luphakama, ivalvu iyavuleka ukuze ikhuphe umoya okanye umphunga.
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Nqanda ukubuya kwamanzi okanye ukungena kwamanzi olwandle— xa uxinzelelo lwangaphandle (njengamaza okanye imvula) lungena, ivalvu ivala ngokuzenzekelayo.
Uninzi lweenguqulelo zaselwandle zenziwe ngebronze, intsimbi engatyiwayo, okanye i-aluminium, kwaye ziqulathe iidiski zangaphakathi okanye iibhola ezihamba ngokukhululekileyo kuxhomekeke kwicala loxinzelelo.Uvavanyo luqinisekisa ukuba ezi ndawo zishukumayo zisebenza ngokuchanekileyo kwaye ivalvu iyavalwa ngokupheleleyo xa ivaliwe.
Kutheni Uvavanyo Oluqhelekileyo Lubalulekile
Ekuhambeni kwexesha, iivalvu zokujonga umoya wetanki zijongana nokugqwala kwamanzi anetyuwa, ukuguguleka koomatshini, kunye nokuqokelelana kweekristale zetyuwa okanye iintsalela zeoyile. Ezi zinokuchaphazela ukuvaleka kunye nokutywinwa.Ukuba ivalvu ayivuleki, uxinzelelo lunokwakheka — okunokubangela ukuguquka kwetanki. Ukuba ayivaleki, amanzi olwandle okanye imvula inokungena, ingcolise indawo egciniweyo.
Yiyo loo nto imithetho yolwandle (njenge-IMO kunye nemibutho yeklasi efana ne-DNV, i-LR, i-ABS) ifuna uvavanyo kunye nokugcinwa rhoqo. Uvavanyo olufanelekileyo luqinisekisa:
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①Ivalvu ivula xa uxinzelelo lubekwe ngendlela eyiyo.
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②Indlela yokuvala isebenza ngokuchanekileyo.
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③Isitywini sihlala siqinile xa siphantsi koxinzelelo lomqolo.
Inyathelo ngenyathelo: Indlela yokuvavanya ivalvu yokujonga umoya wetanki
1. Ukulungiselela noKhuseleko kuqala
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①Itanki ikhutshiwe kwaye icinezelwe.
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②Kukho iimvume ezifanelekileyo kunye namanyathelo okhuseleko.
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③Zonke iipayipi zikhutshiwe kwaye akukho mphunga uvuthayo ukhoyo.
Coca umphandle wevalvu, ususe naluphi na ukungcola okanye ityuwa eqokeleleneyo. Emva koko susa ivalvu kumgca womoya ukuze kuvavanywe ibhentshi.
2. Uhlolo olubonakalayo
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①Ukugqwala okanye ukuqhekeka komzimba wevalvu.
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②Ukuqhekeka, ukuqhekeka, okanye ukuguquka kwesakhiwo.
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③Ukuvaleka kwetyuwa, ipeyinti, okanye ioyile.
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④Intshukumo egudileyo yezinto zangaphakathi (idiski, ibhola, intwasahlobo).
Ukuba indlela yangaphakathi yokusebenza ivakala incamathela okanye ixinene, yicoce kakuhle usebenzisa isepha ethambileyo okanye ukucoca nge-ultrasound. Buyisela naziphi na izitywini okanye izipilingi ezonakeleyo.
3. Uvavanyo lokuvuza (Uvavanyo lokuqina kwesihlalo)
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①Qhagamshela i-outlet yevalvu kumthombo womoya ophantsi koxinzelelo (0.5–1 bar).
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②Faka uxinzelelo lomoya kwicala elingasemva (ukulinganisa ukuhamba komoya emva).
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③Sebenzisa isisombululo sesepha okanye igeyiji yoxinzelelo ukuze ubone nakuphi na ukuvuza.
Ivalvu esebenza kakuhle kufuneka ihlale ivalwe ngokupheleleyo. Nakuphi na ukubhobhoza okuqhubekayo okanye ukuhla koxinzelelo kubonisa ukuvuza — oko kuthetha ukuba isihlalo sokutywina okanye i-O-ring kufuneka itshintshwe.
4. Uvavanyo loxinzelelo lokuvula
Ngoku lixesha lokuqinisekisa uxinzelelo oluqhekekileyo (uxinzelelo apho ivalvu iqala ukuvula khona).
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Faka ivalvu kwibhentshi yovavanyo apho i-inlet iqhagamshelwe kumthombo womoya ohlengahlengiswayo kunye ne-outlet evulekele umoya.
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Nyusa uxinzelelo lomoya kancinci kancinci ngelixa ujonga ivalvu.
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Bhala phantsi uxinzelelo oluchanekileyo apho idiski okanye ibhola iphakama khona.
Thelekisa ukufundwa koxinzelelo lokuqhekeka oluchazwe ngumvelisi — ngesiqhelo phakathi kwe-0.1 ukuya kwi-0.3 bar kwiivalvu zomoya wolwandle.Ukuba ivula kwangethuba kakhulu, izipringi zangaphakathi zinokuba buthathaka. Ukuba ivula kade kakhulu, ivalvu isenokuba ingcolisiwe okanye ayilungelelananga kakuhle.
5. Uvavanyo lokuHlala kwakhona (lokuvala)
①Nje ukuba ivuliwe, yehlisa uxinzelelo lovavanyo kancinci kancinci. Qaphela xa ivalvu iphinda ihlale kwaye ivala ngokupheleleyo.
②Eli nqaku laziwa ngokuba luxinzelelo lokubuyisela indawo. Kufuneka libe sezantsi kancinci kunoxinzelelo lokuvula — ukuqinisekisa ukusebenza kakuhle ngaphandle kokushukuma okanye ukuvuza.
③Ukuba ivalvu “iyathetha” (iyashukuma phakathi kweendawo ezivulekileyo nezivaliweyo), loo nto ibonisa ukuba intwasahlobo ayisebenzi kakuhle okanye ayisebenzi kakuhle.
6. Uvavanyo lokuhamba koMsebenzi (Ukhetho kodwa luyacetyiswa)
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①Qhagamshela ivalvu kwi-flowmeter kwaye ulinganise iimeko zokwenyani zokukhupha umoya.
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②Jonga isantya sokuphuma komoya, ingxolo, kunye nokungcangcazela.
Ukuhamba komoya okuzinzileyo kunye nokuziphatha okuzinzileyo kubonisa ukuba ivalvu isebenza ngokuchanekileyo phantsi kweemeko zokusebenza.
Ukugcinwa Emva koVavanyo
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①Coca uze womise ivalvu.
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②Thambisa iindawo ezihambayo (ukuba zikhona).
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③Tshintsha naziphi na iigaskets, izihlalo, okanye ii-O-rings ezigugileyo.
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④Faka kwakhona ivalvu ngeefasteners ezintsha kunye neegaskets.
Soloko ujonga ulungelelwaniso emva kokufakwa. Umgca womoya kufuneka uthambe kancinci ukuthintela ukuqokelelwa kwamanzi, kwaye ivalvu kufuneka ijonge phezulu ukuze isebenze kakuhle.
Ukurekhoda kunye neSatifikethi
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①Umhla wovavanyo
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②Inombolo ye-serial yeValve
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③Uxinzelelo lokuvula nokuphinda uhlalise
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④Kubonwe ukuvuza okanye ukungaqheleki
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⑤Igama lengcali kunye notyikityo lokuvuma
Ezi rekhodi zihlala zijongwa yimibutho yokwahlulahlula iilwandle ngexesha lokuhlolwa. Ukugcina ingxelo echanekileyo kuqinisekisa ukuthotyelwa kwemithetho kunye nokulandelelwa kwayo.
Iimpazamo zovavanyo eziqhelekileyo ekufuneka ziphetshwe
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①Ukusebenzisa uxinzelelo oluphezulu kakhulu lovavanyo— ingonakalisa izivalo okanye itshintshe iindawo zangaphakathi.
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②Ukutsiba ukucoca— inkunkuma engaphakathi kwivalvu inokubangela iziphumo zovavanyo ezingezizo.
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③Ukungahoyi indlela yokujonga intwasahlobo— utshintsho oluguqulweyo lofakelo olubangela ukuqhekeka koxinzelelo.
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④Ukungazijongi izinto zokuthintela umlilo— izikrini ezivalekileyo zinciphisa ukusebenza kakuhle kokukhupha umoya.
Soloko ulandela imiyalelo yomenzi weevalvu kunye neemfuno zoluntu lweklasi xa uvavanya amaxesha athile (ngesiqhelo rhoqo kwiinyanga ezili-12 ukuya kwezingama-24).
Ixesha leposi: Okthobha-28-2025