SX-12 Vavu yogawa SX-14 valavu yayikulu Mafuta olowera valavu yapakati yotsitsa

Zofukula zambiri zimakhala ndi mapampu akuluakulu awiri, kotero valavu yaikulu yothandiza imakhala ndi ziwiri (zomwe zimadziwikanso kuti valavu yaikulu yotetezera), motsatana zimayendetsa pampu yaikulu, ndiyeno pampu iliyonse imayang'anira zochita za 3, ndowa ndi mkono waukulu umayenda ndi mbali imodzi. ndi gulu, mkono wapakati, kuzungulira ndi kupatulapo kuyenda kwa mbali ndi gulu, ma valve awiri akuluakulu othandizira (ma valve oyendetsa ndege) amawongolera zochita zitatu zosiyana.

Ndipo potsiriza amakhalanso ndi ma valve awo operekera chithandizo pazochitika zilizonse, monga mkono wonyamulira ndi mkono wotsikirapo womwe uli ndi ma valve awoawo. Valve yaikulu yothandizira makamaka imayang'anira kupanikizika kwa mapampu awiri akuluakulu, kotero kupanikizika kwa zochita zitatu zomwe zimayendetsedwa ndi mpope waukulu ndizofanana, malingana ndi zofunikira, ngati kupanikizika kwa chinthu chimodzi sikukwanira kapena kupitirira, ndiye valavu yapadera yothandizira zochitayo imatha kusinthidwa.

Mfundo yogwirira ntchito ndi ntchito ya valve yothandizira

1, valavu yopumira nthawi zonse imasefukira: mu kachulukidwe kapope kachulukidwe kachitidwe, pampu yochulukira imapereka kuyenda kosalekeza. Pamene kupanikizika kwa dongosolo kumawonjezeka, kufunikira kothamanga kudzachepa. Panthawiyi, valve yothandizira imatsegulidwa, kotero kuti kutuluka kwakukulu kumabwereranso ku thanki, kuonetsetsa kuti mpweya wotsekemera wa valve, ndiko kuti, kuthamanga kwa mpweya wa pampu kumakhala kosalekeza (doko la valve nthawi zambiri limatsegulidwa ndi kusinthasintha kwa kuthamanga) .

2, chitetezo cha chitetezo: Pamene dongosolo likugwira ntchito bwino, valve imatsekedwa. Pokhapokha pamene katunduyo adutsa malire omwe atchulidwa (kupanikizika kwa dongosolo kumadutsa kupanikizika kokhazikitsidwa), kusefukira kumatsegulidwa kuti atetezedwe mochulukira, kotero kuti kupanikizika kwa dongosolo sikulinso kuwonjezeka (kawirikawiri kupanikizika kwa valve yothandizira ndi 10% mpaka 20% apamwamba kuposa kupanikizika kwakukulu kwa ntchito ya dongosolo).

3, ngati valavu yotsitsa yomwe imagwiritsidwa ntchito ngati chowongolera chakutali:

Valve yapamwamba komanso yotsika kwambiri yowongolera ma multistage imagwiritsidwa ntchito ngati valavu yotsatizana kuti ipangitse kukakamiza kumbuyo (chingwe pamayendedwe obwerera mafuta).

Valavu yothandizira woyendetsa ili ndi magawo awiri: valavu yayikulu ndi valavu yoyendetsa. Mavavu oyendetsa ndege amafanana ndi ma valve oyendetsa mwachindunji, koma nthawi zambiri amakhala mipando yokhala ngati ma cone (kapena valavu ya mpira). Valavu yayikulu imatha kugawidwa m'magulu amodzi, awiri okhazikika komanso atatu okhazikika.