Ama-Shaft Aphansi Ama-Fixed Ball Valve: Okuhlangenwe nakho Okusebenzayo kanye Neseluleko Ngenkinga Yokuphambuka Kwesakhiwo

Umgodi ongezansi wevalvu yebhola egxilile uvame ukunganakwa kalula kodwa kubiza kakhulu ukuphutha. Kungakhathaliseki ukuthi umongo webhola ujikeleza kahle nokuthi i-axis ishintshiwe noma cha, kuvame ukuncika ekutheni usayizi kanye nedatha ephakathi yalo mgodi ophansi kulawulwe yini ezigabeni zomshini nokuhlanganiswa.

Sibhekane nezinkinga eziningi ezifanayo, ikhasimende elinesakhiwo se-DN500 Class 600, ukuvulwa nokuvalwa kwensimu kunomuzwa ocacile wokukhungatheka. Ekuqaleni kwakusolwa ukuthi i-actuator noma i-ball eccentricity, yahlakazwa kuphela kwatholakala ukuthi i-runout yesinyathelo sokuma kweshaft engezansi inkulu kakhulu, i-bearing seat clearance nayo idlule inani lomklamo, okwaholela ekususweni kwesikhungo sokugijima se-ball core.

Ukwakheka kwesakhiwo somgodi ongezansi, kunconywa ukusebenzisa ukubeka isinyathelo, futhi ngesikhathi esifanayo, kufanele kucace ukuthi ekugcineni ngokuma kwehlombe noma ngokuwa kwesinyathelo esingezansi. Uma le mininingwane ingamakwanga ngokucacile emdwebeni, kuzoba lula ukufaka okungalungile uma uthembele ekwahluleleni okubonakalayo ekuhlanganisweni kwakamuva. Uma sibhekana nalolu hlangothi, ngokuvamile sizothatha i-axis yebhola njengesikhungo sokusungula umugqa wokubhekisela wemigodi ephezulu nephansi yebhereyi, bese silungisa isakhiwo sokuma ngokwesakhiwo somgodi esiphezulu nesephansi.

Ubuchwepheshe bokucubungula, ukucutshungulwa okuqinile kwemishini yokuthunga kumele kuqiniswe ngemva kokucubungula, bese kuba nokujikiswa okuhlanganisiwe kwazo zonke izindawo ezibalulekile. Sivame ukulawula ukuqhutshwa kwesinyathelo ngaphakathi kuka-0.03, i-coaxiality ≤ 0.015. Ezinye izakhiwo ezishelelayo zizokwenza nokugaya noma i-nitriding, ikakhulukazi ikhasimende elidinga ukungqubuzana okuphansi noma ukusebenza isikhathi eside kwephrojekthi.

Nakuba le ngxenye ingenkulu, uma ukuphambuka okuphakathi sekuqongelela, kuzothinta ukuzinza kwesakhiwo sonke sokuvala, ikakhulukazi uma isihlalo sebhola sibambeka ngokungabalulekile noma isakhiwo somkhawulo sivaliwe. Sincoma ukuthi isiqondiso sokuhlangana siphawulwe ngokucacile emidwebweni, noma ukuthi umdwebo wesakhiwo sonke unikezwe ngaphambi kokuhlanganiswa, ukuze sikwazi ukwenza ukulingisa kokuphazamiseka kusengaphambili ukuze kuvinjelwe ukuvuselelwa okulandelayo.