Zingaphi iiValve ezikwinqanawa

Inani leiivalvuukufakwa kwinqanawa kuxhomekeke kubukhulu benqanawa, uhlobo lwayo, kunye nenjongo yayo—kodwa kwiimeko ezininzi, inani liphezulu kakhulu kunokuba abantu belindele. Inqanawa encinci eselunxwemeni inokuba neevalvu ezingama-200–500, ngelixa iinqanawa ezinkulu ezihamba elwandle, iinqanawa ze-LNG, kunye neenqanawa zaselwandle zihlala ziqulathe iivalvu ezili-1,000–3,000 nangaphezulu. Ivalvu nganye idlala indima ebalulekileyo ekulawuleni, ekuhlukaniseni, okanye ekulawuleni ukuhamba kolwelo kunye neegesi kwiinkqubo ezahlukeneyo zebhodi yenqanawa.

1. Kutheni iinqanawa zineevalvu ezininzi kangaka

Iinqanawa zaselwandle ngokuyintloko zizixeko ezidadayo kunye nezityalo zoshishino zidibene, kunye neenkqubo ezininzi ekufuneka zisebenze ngokuthembekileyo phantsi kweemeko ezinzima zaselwandle. Inkqubo nganye—nokuba yeyokuqhuba, ukhuseleko, okanye ukuphathwa kwemithwalo—ifuna uthungelwano lwayo lweevalvu ukuqinisekisa ukusebenza ngokukhuselekileyo nangokufanelekileyo.

2. Iinkqubo eziphambili ezisebenzisa iiValve kwiinqanawa

• ①Iinkqubo zamanzi zeBallast – Sebenzisa iivalvu zesango, iivalvu zebhabhathane, kwaye ujonge iivalvu ukuhambisa amanzi ngaphakathi nangaphandle kwiitanki ze-ballast, ugcine uzinzo kunye nokulungiswa kwesitya.

• ②Iinkqubo zeGumbi leeNjini kunye nePropulsion – Faka iivalvu zeglobe, iivalvu zokunceda ukhuseleko, kunye neevalvu zokunciphisa uxinzelelo ukulawula amanzi okupholisa, ioyile yokuthambisa, umphunga, kunye nokuhamba kwepetroli.

• ③Iinkqubo zoLawulo lweeMpahla – Kwiinqanawa zeoyile, kwiinkampani ze-LNG, nakwiinkampani zekhemikhali, iivalvu ezisebenzayo kakhulu zilawula ukulayisha, ukudlulisa, kunye nokukhupha imithwalo phantsi kwemigaqo yokhuseleko engqongqo.

• ④Iinkqubo zokuCima umlilo – Zixhotyiswe ngeevalvu ezivala ngokukhawuleza, iivalvu zombhobho womoya, kunye neevalvu zokulawula uxinzelelo ukuqinisekisa impendulo ekhawulezileyo engxamisekileyo naphi na apho ungaphakathi.

• ⑤Iinkqubo zeHVAC kunye namanzi acocekileyo – Sebenzisa iivalvu zokulawula, iivalvu zokulawula ezizimeleyo kuxinzelelo (ii-PICV), kunye neevalvu zokulinganisela ukulawula ubushushu, uxinzelelo, kunye nokuhamba kwamanzi kwiindawo zokuhlala.

• ⑥Iinkqubo zamanzi amdaka kunye neeBilge – Sebenzisa iivalvu ezingabuyisiyo, iivalvu zesango lemela, kunye neevalvu zediaphragm ukuphatha indle, amanzi amdaka, kunye nokukhupha i-bilge ngokukhuselekileyo.

3. Ukubaluleka koMgangatho kunye noLondolozo lweeValve

Ngenxa yokuba iivalvu zasemanzini zisebenza kwindawo enetyuwa eninzi, enomswakama ophezulu, ukumelana nokugqwala kunye nokuqina kubalulekile. Abanini beenqanawa badla ngokukhetha izinto ezisemgangathweni wolwandle ezifana nebronze, intsimbi engatyiwayo, okanye intsimbi egqunywe ngokukodwa. Ukuhlolwa rhoqo kweevalvu, uvavanyo lwe-hydrostatic, kunye nokugcinwa kwazo kubalulekile ukuze kuthintelwe ukuvuza, ukulahleka koxinzelelo, kunye neengozi ezinokubakho zokhuseleko elwandle.