Butterfly Valve Introduction

Chiyambi:

Vavu ya butterflyamachokera ku banja la ma valve otchedwamavavu a quarter-turn. Pogwira ntchito, valavu imatsegulidwa kwathunthu kapena yotsekedwa pamene diski imazungulira kotala. "Gulugufe" ndi diski yachitsulo yomwe imayikidwa pa ndodo. Vavu ikatsekedwa, diski imatembenuzidwa kotero kuti imatsekereza njirayo. Vavu ikatsegulidwa kwathunthu, diskiyo imazunguliridwa kotala kotala kotero kuti imalola kuti madzi azitha kuyenda mopanda malire. Valve imathanso kutsegulidwa pang'onopang'ono kuti muchepetse kuthamanga.

Pali mitundu yosiyanasiyana ya mavavu agulugufe, iliyonse yosinthidwa kuti igwirizane ndi zovuta zosiyanasiyana komanso kugwiritsa ntchito mosiyanasiyana. Vavu yagulugufe ya zero-offset, yomwe imagwiritsa ntchito kusinthasintha kwa mphira, imakhala ndi mphamvu yotsika kwambiri. Valavu yagulugufe yogwira ntchito kwambiri, yomwe imagwiritsidwa ntchito pamakina apamwamba kwambiri, imachotsedwa pakati pa mpando wa disc ndi chisindikizo cha thupi (chochotsa chimodzi), ndi mzere wapakati wa bore (offset two). Izi zimapanga chochita cha cam panthawi yogwira ntchito kukweza mpando kuchokera pa chisindikizo zomwe zimapangitsa kuti pakhale kugundana kochepa kuposa momwe zimapangidwira pakupanga zero offset ndikuchepetsa chizolowezi chake kuvala. Vavu yoyenera kwambiri pamakina othamanga kwambiri ndi valavu yamagulugufe atatu. Mu valavu iyi chimbale mpando kukhudzana axis ndi offset, amene amachita pafupifupi kuthetsa kutsetsereka kukhudzana pakati pa chimbale ndi mpando. Pankhani ya katatu offset mavavu mpando wapangidwa ndi zitsulo kotero kuti akhoza machined monga kukwaniritsa kuwira zolimba kutseka-kutseka pamene anakumana ndi chimbale.

Mitundu

Mavavu agulugufe okhazikika- valavu yamtunduwu imakhala ndi mpando wokhazikika wa mphira wokhala ndi diski yachitsulo.
Mavavu agulugufe owirikiza kawiri(ma valve agulugufe apamwamba kwambiri kapena ma valve a butterfly-offset) - mitundu yosiyanasiyana ya zipangizo zimagwiritsidwa ntchito pampando ndi disc.
Mavavu agulugufe atatu-eccentric(mavavu agulugufe atatu) - mipandoyo imakhala yopangidwa ndi laminated kapena chitsulo cholimba.

Mavavu agulugufe wamtundu wa Wafer

Thevalavu ya butterflyidapangidwa kuti ikhale ndi chisindikizo chotsutsana ndi kusiyana kwapakati pa bi-directional kuti tipewe kubwereranso kulikonse m'makina opangidwa kuti aziyenda unidirectional. Imakwaniritsa izi ndi chisindikizo cholimba; mwachitsanzo, gasket, o-ring, makina olondola, ndi nkhope ya valve yosalala kumbali yakumtunda ndi kumunsi kwa valavu.

Valve yagulugufe wamtundu wa Lug

Mavavu amtundu wa Lugalowetsamo ulusi mbali zonse za thupi la valve. Izi zimalola kuti akhazikitsidwe mudongosolo pogwiritsa ntchito ma seti awiri a mabawuti komanso opanda mtedza. Valavu imayikidwa pakati pa ma flanges awiri pogwiritsa ntchito ma bolt osiyana pa flange iliyonse. Kukhazikitsa uku kumapangitsa kuti mbali zonse za mapaipi azilumikizidwa popanda kusokoneza mbali inayo.

Vavu yagulugufe yamtundu wa lug yomwe imagwiritsidwa ntchito popereka chithandizo nthawi zambiri imakhala ndi kutsika kotsika. Mwachitsanzo, valavu yagulugufe yamtundu wa lug yomwe imayikidwa pakati pa ma flanges awiri ili ndi mphamvu ya 1,000 kPa (150 psi). Vavu yomweyi yomwe ili ndi flange imodzi, mu utumiki wakufa, ili ndi 520 kPa (75 psi). Mavavu okhala ndi lugged amalimbana kwambiri ndi mankhwala ndi zosungunulira ndipo amatha kupirira kutentha mpaka 200 ° C, zomwe zimapangitsa kuti ikhale yankho losunthika.

Gwiritsani ntchito m'makampani

M'makampani opanga mankhwala, mankhwala, ndi zakudya, valavu ya butterfly imagwiritsidwa ntchito kusokoneza kayendedwe kazinthu (zolimba, zamadzimadzi, gasi) mkati mwa ndondomekoyi. Ma valve omwe amagwiritsidwa ntchito m'mafakitalewa nthawi zambiri amapangidwa motsatira malangizo a cGMP (machitidwe abwino opangira pano). Mavavu agulugufe nthawi zambiri amalowa m'malo mwa mavavu ampira m'mafakitale ambiri, makamaka mafuta, chifukwa chotsika mtengo komanso mosavuta kuyikira, koma mapaipi okhala ndi ma valve agulugufe sangathe 'kutsekedwa' kuti ayeretse.