Chiyambi cha Valavu ya Gulugufe

Chiyambi:

Valavu ya gulugufendi wochokera m'banja la ma valve otchedwama valve ozungulira kotala. Ikugwira ntchito, valavu imatsegulidwa kapena kutsekedwa kwathunthu pamene diski yazunguliridwa kotala. "Gulugufe" ndi diski yachitsulo yoyikidwa pa ndodo. Vavu ikatsekedwa, diski imazunguliridwa kotero kuti imatseka kwathunthu njira yolowera. Vavu ikatsegulidwa kwathunthu, diski imazunguliridwa kotala kotero kuti imalola njira yopanda malire yamadzimadzi. Vavu imathanso kutsegulidwa pang'onopang'ono kuti throttle iyende.

Pali mitundu yosiyanasiyana ya ma valve a gulugufe, iliyonse yosinthidwa kuti igwirizane ndi kupsinjika kosiyanasiyana komanso kugwiritsa ntchito kosiyanasiyana. Valavu ya gulugufe ya zero-offset, yomwe imagwiritsa ntchito kusinthasintha kwa rabara, ili ndi kupsinjika kotsika kwambiri. Valavu ya gulugufe ya double offset, yomwe imagwiritsidwa ntchito m'makina opanikizika pang'ono, imachotsedwa pakati pa mpando wa disc ndi chisindikizo cha thupi (offset one), ndi mzere wapakati wa bore (offset two). Izi zimapangitsa kuti mpando utuluke mu chisindikizo panthawi yogwira ntchito zomwe zimapangitsa kuti pakhale kukangana kochepa kuposa komwe kumachitika mu kapangidwe ka zero offset ndikuchepetsa chizolowezi chake chotha. Valavu yoyenera kwambiri machitidwe opanikizika kwambiri ndi valavu ya gulugufe ya triple offset. Mu valavu iyi, axis yolumikizirana ndi mpando wa disc imachotsedwa, yomwe imagwira ntchito poletsa kukhudzana pakati pa disc ndi mpando. Pankhani ya ma valve atatu offset, mpando umapangidwa ndi chitsulo kuti uzitha kupangidwa kuti ukhale wotsekedwa bwino ndi thovu likakhudzana ndi disc.

Mitundu

1. Ma valve a gulugufe ozungulira- valavu yamtunduwu ili ndi mpando wa rabara wolimba komanso wokhala ndi diski yachitsulo.
2. Ma valve a gulugufe ozungulira kawiri(ma valavu a gulugufe ogwira ntchito kwambiri kapena ma valavu a gulugufe omwe ali ndi mbali ziwiri) - mitundu yosiyanasiyana ya zipangizo zimagwiritsidwa ntchito pa mpando ndi diski.
3. Ma valve a gulugufe ozungulira atatu(ma valve a gulugufe atatu) - mipandoyo ndi yopangidwa ndi laminated kapena yokhala ndi chitsulo cholimba.

Ma valve a gulugufe a mtundu wa Wafer

Thevavu ya gulugufe ya gulugufe ya waferYapangidwa kuti isunge chisindikizo motsutsana ndi kusiyana kwa kuthamanga kwa mbali ziwiri kuti ipewe kubwerera m'mbuyo kulikonse m'makina omwe amapangidwira kuyenda kwa mbali imodzi. Imachita izi ndi chisindikizo cholimba; mwachitsanzo, gasket, o-ring, makina olondola, ndi nkhope ya valavu yosalala mbali zakumtunda ndi pansi pa valavu.

Valavu ya gulugufe yofanana ndi Lug

Ma valve a mtundu wa LugAli ndi zoyikapo ulusi mbali zonse ziwiri za thupi la valavu. Izi zimathandiza kuti ziikidwe mu dongosolo pogwiritsa ntchito maboluti awiri ndipo palibe nati. Valuvu imayikidwa pakati pa ma flange awiri pogwiritsa ntchito maboluti osiyana a flange iliyonse. Kukhazikitsa kumeneku kumalola mbali iliyonse ya dongosolo la mapaipi kutsekedwa popanda kusokoneza mbali inayo.

Vavu ya gulugufe yofanana ndi lug yomwe imagwiritsidwa ntchito popereka chithandizo cha dead end nthawi zambiri imakhala ndi kupanikizika kochepa. Mwachitsanzo, valavu ya gulugufe yofanana ndi lug yomwe imayikidwa pakati pa ma flange awiri imakhala ndi kupanikizika kwa 1,000 kPa (150 psi). Vavu yomweyi yoyikidwa ndi flange imodzi, popereka chithandizo cha dead end, ili ndi kutsimikizika kwa 520 kPa (75 psi). Mavavu olumikizidwa ndi lug ndi otetezedwa kwambiri ku mankhwala ndi zosungunulira ndipo amatha kupirira kutentha mpaka 200 °C, zomwe zimapangitsa kuti ikhale yankho losinthasintha.

Gwiritsani ntchito m'makampani

Mu mafakitale opanga mankhwala, mankhwala, ndi chakudya, valavu ya gulugufe imagwiritsidwa ntchito kusokoneza kuyenda kwa zinthu (zolimba, zamadzimadzi, gasi) mkati mwa njirayi. Mavalavu omwe amagwiritsidwa ntchito m'mafakitale awa nthawi zambiri amapangidwa motsatira malangizo a cGMP (njira yabwino yopangira zinthu). Mavalavu a gulugufe nthawi zambiri amalowa m'malo mwa mavalavu a mpira m'mafakitale ambiri, makamaka mafuta, chifukwa cha mtengo wotsika komanso kusavuta kuyiyika, koma mapaipi okhala ndi mavalavu a gulugufe sangaloledwe 'kutsukidwa' kuti ayeretsedwe.

Zithunzi