II Taboo makumi awiri ndi zisanu zoyika ma valve owuma, mumadziwa bwanji?

Taboo 11 Njira yolakwika yoyika ma valve. Mwachitsanzo, njira yamadzi (nthunzi) yothamanga ya valve yoyimitsa kapena valavu yowunikira ikutsutsana ndi chizindikiro, tsinde la valve limayikidwa pansi, valavu yoyang'ana yomwe imayikidwa mozungulira imayikidwa molunjika, chogwirira cha valavu yokwera tsinde kapena valavu ya butterfly ilibe. malo otsegulira ndi kutseka, ndipo tsinde la valve la valve yobisika siliyang'anizana ndi valavu yoyendera. Zotsatira zake: kulephera kwa ma valve, kusintha kwa zovuta kukonza, kutsika pansi nthawi zambiri kumayambitsa kutuluka kwa madzi. Miyeso: kukhazikitsa mosamalitsa malinga ndi malangizo unsembe vavu. Vavu yachipata chokwera iyenera kukhala ndi kutalika kokwanira kotsegulira kwa tsinde. Malo ozungulira chogwirira ayenera kuganiziridwa bwino pa valve ya gulugufe. Tsinde la mavavu osiyanasiyana lisakhale lotsika kuposa malo opingasa kapena pansi. Chophimba chobisika sichidzangoperekedwa kokha ndi valavu yoyendera yomwe ikukwaniritsa zofunikira zotsegulira ndi kutseka kwa valve, komanso tsinde la valve lidzayang'anizana ndi valve yoyendera. Taboo 12 Mafotokozedwe ndi chitsanzo cha valavu yoyikidwa sizimakwaniritsa zofunikira za mapangidwe. Mwachitsanzo, kuthamanga kwadzina kwa valve kumakhala kochepa kusiyana ndi kuyesa kwa dongosolo; pamene chitoliro cha chitoliro cha chitoliro cha madzi ndi chocheperapo kapena chofanana ndi 50 mm, valve yachipata imagwiritsidwa ntchito; valavu yoyimitsa imagwiritsidwa ntchito pamapaipi owuma ndi oyima a kutentha kwa madzi otentha; valavu ya butterfly imagwiritsidwa ntchito poyamwa madzi pampopi yamoto. Zotsatira: zimakhudza kutsegula ndi kutseka kwabwino kwa valve ndikusintha kukana, kupanikizika ndi ntchito zina. Ngakhale chifukwa ntchito dongosolo, valavu kuwonongeka anakakamizika kukonza. Miyezo: dziwani momwe ma valve amagwiritsidwira ntchito, ndikusankha mawonekedwe ndi mitundu yamavavu molingana ndi kapangidwe kake. Kuthamanga mwadzina kwa valve kudzakwaniritsa zofunikira za kupanikizika kwa dongosolo. Malinga ndi zofunikira za zomangamanga: valavu yoyimitsa idzagwiritsidwa ntchito pamene m'mimba mwake wa chitoliro chanthambi chamadzi ndi chocheperapo kapena chofanana ndi 50mm; valavu yachipata iyenera kugwiritsidwa ntchito pamene m'mimba mwake ndi wamkulu kuposa 50mm. Vavu yachipata iyenera kugwiritsidwa ntchito potenthetsa madzi otentha owuma komanso owongolera valavu, ndipo valavu ya butterfly sidzagwiritsidwa ntchito poyamwa paipi yamoto. Taboo 13 Musanakhazikitse valavu, kuyang'anitsitsa khalidwe lofunika sikuchitika monga momwe kukufunikira. Zotsatira: pakugwira ntchito kwa dongosololi, kusintha kwa valve sikusinthasintha, kutseka sikuli kolimba ndipo zochitika zamadzi ( nthunzi) zimatuluka, zomwe zimayambitsa kukonzanso ndi kukonzanso, ngakhale kukhudza madzi abwino ( nthunzi). Miyezo: kulimba kwa mphamvu ndi kulimba kolimba kumayenera kuchitidwa musanayambe kukhazikitsa ma valve. 10% ya batch iliyonse (ya mtundu womwewo, mawonekedwe ndi mtundu) idzasankhidwa kuti iyesedwe, ndipo osachepera imodzi. Kuti ma valve otsekedwa omwe amaikidwa pa chitoliro chachikulu kuti adulidwe, mayesero a mphamvu ndi zolimba ayenera kuchitidwa mmodzimmodzi. Kuthamanga kwa ma valve ndi kulimba kwa mayeso kumayenderana ndi zomwe zimaperekedwa kuti zivomerezedwe kamangidwe ka madzi omanga ndi ngalande ndi uinjiniya wotenthetsera (GB 50242-2002). Taboo 14 Zida zazikulu, zida ndi zinthu zomwe zimagwiritsidwa ntchito pomanga ndi kusowa kwa zikalata zozindikiritsa zaukadaulo kapena ziphaso zomwe zimakwaniritsa zomwe boma kapena unduna wapereka. Zotsatira zake: khalidwe la polojekitiyi ndi losayenerera, pali ngozi zomwe zingatheke, ndipo sizingaperekedwe ndikugwiritsidwa ntchito panthawi yake, choncho ziyenera kukonzedwanso ndikukonzedwanso; nthawi yomanga ikuchedwa, ndipo kulowetsedwa kwa ntchito ndi zipangizo kumawonjezeka. Miyezo: zida zazikulu, zida ndi zinthu zomwe zimagwiritsidwa ntchito popereka madzi ndi ngalande ndi kutenthetsa ndi ukhondo uinjiniya zidzaperekedwa ndi zikalata zowunikira zaukadaulo kapena ziphaso zazinthu zomwe zimakwaniritsa zomwe boma kapena unduna wapereka; dzina la malonda, chitsanzo, mafotokozedwe, nambala yamtundu wa dziko, tsiku lobweretsera, dzina la wopanga ndi malo, chiphaso choyang'anira katundu kapena code idzawonetsedwa. Taboo 15 Valve inversion Zotsatira: valavu yowunikira, valavu yothamanga, valavu yochepetsera kuthamanga, valavu yoyang'ana ndi ma valve ena amawongolera. Ngati aikidwa mosinthika, valavu ya throttle idzakhudza zotsatira za utumiki ndi moyo; valavu yochepetsera kuthamanga sigwira ntchito konse, ndipo valavu yoyang'ana ingayambitse ngozi. Miyezo: kwa mavavu ambiri, pali chizindikiro chowongolera pathupi la valve; ngati sichoncho, chiyenera kudziwika bwino molingana ndi mfundo yogwira ntchito ya valve. Mphuno ya valve ya valve yoyimitsa siilimetrical. Madzi amadzimadzi ayenera kuloledwa kudutsa pa doko la valve kuchokera pansi mpaka pamwamba, kotero kuti kukana kwamadzimadzi kumakhala kochepa (kutsimikiziridwa ndi mawonekedwe), kutsegula ndikupulumutsa ntchito (chifukwa cha kupanikizika kwapakati pa sing'anga), ndi sing'anga. sichimapanikizidwa pambuyo pa kutseka, komwe kuli koyenera kukonza. Ichi ndichifukwa chake valve yoyimitsa singathe kusinthidwa. Osayika chipata valavu mozondoka (ie dzanja gudumu ndi pansi), apo ayi, sing'anga adzakhala mu valavu chivundikiro danga kwa nthawi yaitali, amene n'zosavuta dzimbiri valavu tsinde, ndi zoletsedwa ndi zofunika ndondomeko. Panthawi imodzimodziyo, zimakhala zovuta kusintha kulongedza. Vavu yachipata chotsegula sichidzayikidwa pansi, apo ayi tsinde lowonekera lichita dzimbiri chifukwa cha chinyezi. Mukayika valavu yowunikira, onetsetsani kuti valavu ya valavu imakhala yowongoka, kuti kukwezako kukhale kosavuta. Valavu yoyang'ana swing iyenera kuyikidwa ndi pin shaft yake yopingasa kuti igwedezeke bwino. Valavu yothandizira kupanikizika iyenera kuyikidwa molunjika paipi yopingasa ndipo siyenera kutsatiridwa mbali zonse.