Valve yachipata ndivalavu ya butterfly zonse zimagwira ntchito yosintha ndi kuwongolera kayendedwe ka kayendedwe ka mapaipi. Zoonadi, pali njira yosankha valavu ya butterfly ndi valve yachipata. Pofuna kuchepetsa kuya kwa dothi la payipi muukonde woperekera madzi, mapaipi okulirapo amakhala ndi ma valve agulugufe, omwe sakhudza kuya kwa dothi, ndipo yesetsani kusankha mavavu a zipata.
Kodi pali kusiyana kotani pakati pa valavu ya butterfly ndi valve valve?
Malinga ndi ntchito ndi kugwiritsa ntchito valavu yachipata ndi valavu yagulugufe, valavu yachipata imakhala ndi mphamvu zochepa zothamanga komanso ntchito yabwino yosindikiza. Chifukwa njira yolowera ya mbale ya valve ya pachipata ndi sing'anga ili pamtunda woyima, ngati valavu yachipata siinasinthidwe pamalo ake pa mbale ya valve, kukwapula kwa sing'anga pa mbale ya valve kumapangitsa kuti mbale ya valve igwedezeke. , N'zosavuta kuwononga chisindikizo cha valve yachipata. Valavu ya butterfly, yomwe imadziwikanso kuti flap valve, ndi mtundu wa valve yowongolera yokhala ndi mawonekedwe osavuta. Vavu ya butterfly yomwe ingagwiritsidwe ntchito poyang'anira paipi yapaipi yotsika kwambiri imatanthawuza kuti membala wotseka (disiki kapena mbale yagulugufe) ndi chimbale, chomwe chimazungulira kuzungulira shaft ya valve kuti ikwaniritse kutsegula ndi kutseka. Valavu yomwe ingagwiritsidwe ntchito poyang'anira kutuluka kwa mitundu yosiyanasiyana yamadzimadzi monga mpweya, madzi, nthunzi, zofalitsa zosiyanasiyana zowononga, matope, mafuta, zitsulo zamadzimadzi ndi ma radioactive media. Zimagwira makamaka ntchito yodula ndi kugwedeza paipi. Mbali ya gulugufe yotsegula ndi kutseka ndi mbale ya butterfly yooneka ngati diski, yomwe imazungulira mozungulira muzitsulo zake mu thupi la valve kuti ikwaniritse cholinga chotsegula ndi kutseka kapena kusintha. Gulugufe mbale imayendetsedwa ndi tsinde la valve. Ngati ifika zaka 90°, imatha kumaliza kutsegula ndi kutseka kamodzi. Posintha mbali yowonongeka ya diski, kutuluka kwa sing'anga kumatha kuwongoleredwa.
Malo ogwirira ntchito ndi sing'anga: Vavu ya butterfly ndi yoyenera kutumizira madzi owononga komanso osawononga m'makina opangira uinjiniya monga wopanga, gasi wamalasha, gasi wachilengedwe, gasi wamafuta am'mizinda, mpweya wotentha ndi wozizira, kusungunula kwamankhwala ndi kuteteza chilengedwe. , kumanga madzi ndi ngalande, etc. Pa payipi ya sing'anga, ntchito kusintha ndi kudula otaya sing'anga.
Valve yachipata imakhala ndi chipata cha membala wotsegulira ndi kutseka, kayendetsedwe ka kayendetsedwe ka chipata ndi perpendicular kwa njira yamadzimadzi, ndipo valve yachipata imatha kutsegulidwa kwathunthu ndikutsekedwa kwathunthu. Kupititsa patsogolo ntchito yakeor Kuthekera komanso kupangitsa kuti pakhale kupatuka kwa ngodya yosindikizira panthawi yokonza, chipata ichi chimatchedwa chipata chotanuka.
Pamene valve yachipata yatsekedwa, malo osindikizira angangodalira kupanikizika kwapakati kuti asindikize, ndiko kuti, kungodalira kupanikizika kwapakatikati kuti akanikizire kusindikiza pamwamba pa chipata ku mpando wa valve kumbali ina kuti atsimikizire kusindikiza kwa malo osindikizira, omwe ndi odzisindikiza okha. Ma valve ambiri a pakhomo amatsekedwa mwamphamvu, ndiko kuti, pamene valavu yatsekedwa, chipata chiyenera kukakamizika kutsutsana ndi mpando wa valve ndi mphamvu yakunja kuti zitsimikizidwe zolimba za malo osindikizira.
Njira yoyendetsera: Chipata cha valve yachipata chimayenda molunjika ndi tsinde la valve, lomwe limatchedwansoOS&Y valavu pachipata. Nthawi zambiri, pali ulusi wa trapezoidal pa ndodo yokweza. Kupyolera mu nati pamwamba pa valavu ndi groove yotsogolera pa thupi la valve, kusuntha kwa rotary kumasinthidwa kukhala kusuntha kwa mzere, ndiko kuti, torque yogwiritsira ntchito imasinthidwa kukhala njira yoyendetsera ntchito. Pamene valve imatsegulidwa, pamene kutalika kwa chipata kuli kofanana ndi 1: 1 nthawi ya valavu, njira yamadzimadzi imakhala yosasunthika, koma malowa sangathe kuyang'aniridwa panthawi ya ntchito. Pogwiritsidwa ntchito kwenikweni, nsonga ya tsinde la valve imagwiritsidwa ntchito ngati chizindikiro, ndiko kuti, malo omwe sangathe kutsegulidwa, monga malo ake otseguka. Pofuna kuganizira zochitika zotsekera chifukwa cha kusintha kwa kutentha, nthawi zambiri zimatsegulidwa ku malo apamwamba, ndiyeno kubwerera ku 1 / 2-1 kutembenuka, monga malo a valve yotseguka. Choncho, malo otseguka a valve amatsimikiziridwa molingana ndi malo a chipata (ie sitiroko). Mitedza ina ya valavu ya pachipata imayikidwa pachipata, ndipo kusinthasintha kwa gudumu lamanja kumayendetsa tsinde la valve kuti lizizungulira, zomwe zimapangitsa kuti chipata chikwere. Vavu yamtunduwu imatchedwa Rotary stem gate valve kapenaNRS valavu pachipata.
Nthawi yotumiza: Jul-14-2022
