Mafotokozedwe a ma valve ndi magulu azigwirizana ndi zofunikira za mapepala opangira mapaipi
1, ndichekeni valavumtundu uyenera kuwonetsedwa molingana ndi zofunikira za nambala ya NATIONAL.Ngati mulingo wabizinesi, uyenera kuwonetsa kufotokozera koyenera kwachitsanzo.
2, ndichekeni valavukupanikizika kwa ntchito, zofunikira ≥ payipi yogwira ntchito, popanda kukhudza mtengo wa malo, valavu imatha kupirira kupanikizika kuyenera kukhala kwakukulu kuposa kuthamanga kwenikweni kwa payipi;Mbali iliyonse ya valavu iyenera kupirira nthawi 1.1 kuthamanga kwa valve popanda kutuluka;Mavavu otseguka, thupi la vavu liyenera kupirira kuwirikiza kawiri kukakamiza kwa valve.
3, chekeni valavuMiyezo yopanga, iyenera kufotokozera maziko a nambala ya NATIONAL, ngati mulingo wamabizinesi, mgwirizano wogula uyenera kuphatikizidwa ndi chikalata chabizinesi.
Sankhani cheke valavu zinthu
1. Vavu zinthu, monga imvi kuponyedwa chitsulo chitoliro pang'onopang'ono osavomerezeka kuti ntchito, valavu thupi zinthu ayenera makamaka ductile kuponyedwa chitsulo, ndi kusonyeza chizindikiro chizindikiro ndi zenizeni thupi ndi mankhwala deta kuyezetsa wa kuponyera.
2, zinthu tsinde, yesetsani tsinde zitsulo zosapanga dzimbiri (20Cr13), valavu lalikulu m'mimba mwake ayeneranso zosapanga dzimbiri zitsulo ophatikizidwa tsinde.
3, zinthu za mtedza, pogwiritsa ntchito mkuwa wa aluminiyamu kapena mkuwa wa aluminiyamu, ndipo kuuma ndi mphamvu ndizokulirapo kuposa tsinde.
4, tsinde bushing zakuthupi, kuuma kwake ndi mphamvu zake siziyenera kukhala zazikulu kuposa tsinde, ndipo mumikhalidwe yomiza m'madzi ndi tsinde, thupi la vavu silipanga dzimbiri la electrochemical.
5. Zida zosindikizira pamwamba:
Mitundu ya valve ndi yosiyana, njira zosindikizira ndi zofunikira zakuthupi ndizosiyana;
(2) Common mphero chipata valavu, mkuwa mphete, akafuna kukonza, mode akupera ayenera kufotokozedwa;
(3) Kuyesa kwakuthupi, mankhwala ndi thanzi la valve yofewa yosindikizira pachipata ndi zida zomangira mbale;
(4) Vavu ya gulugufe iyenera kusonyeza zinthu zomwe zimadinda pamwamba pa valavu ndi zomwe zimasindikizidwa pa mbale yagulugufe;Deta yawo yoyezetsa thupi ndi mankhwala, makamaka zofunikira paumoyo wa rabara, ntchito yoletsa kukalamba, kukana kuvala;Labala ndi mphira wa epDM nthawi zambiri amagwiritsidwa ntchito, ndipo mphira wobwezerezedwanso ndi woletsedwa.
6, valavu shaft kulongedza katundu
(1) Chifukwa ma valve mu maukonde a chitoliro nthawi zambiri amatsegulidwa ndi kutsekedwa kawirikawiri, kulongedza kumafunika kukhala osagwira ntchito zaka zingapo, kulongedza sikukalamba, ndipo zotsatira zosindikiza zimasungidwa kwa nthawi yaitali;
(2) Vavu shaft kulongedza katundu ayeneranso kukhala ndi kutsegula ndi kutseka pafupipafupi, zotsatira zabwino kusindikiza;
(3) Poganizira zomwe zili pamwambazi, chodzaza shaft valve sichisintha kwa moyo kapena zaka zoposa khumi;
(4) Ngati kulongedza kuyenera kusinthidwa, kapangidwe ka vavu kayenera kuganizira zosinthira m'malo motengera kuthamanga kwa madzi.
Onani ntchito ya valve
1. Pamene ndondomeko ina ya valavu imapangidwa m'magulu, zotsatirazi zidzayesedwa ndi akuluakulu:
Kutsegula ndi kutseka kwa valve pansi pa ntchito;
(2) pansi pa kukakamizidwa kugwira ntchito, kutsegula ndi kutseka kosalekeza kwa valve kungatsimikizidwe;
(3) Vavu mumayendedwe amadzi amapaipi yodziwikiratu kokwanira kokwanira.
2. Mayeso otsatirawa ayenera kuchitidwa valve isanachoke kufakitale:
(1) Vavu ikatsegulidwa, thupi la valavu liyenera kunyamula kuwirikiza kawiri kuzindikirika kwapakati kwa valve yogwira ntchito;
(2) Pansi pa kutsekedwa, mbali zonse ziwiri za valve motsatira pansi pa 11 nthawi yamtengo wapatali wa valve, palibe kutaya;Koma zitsulo chisindikizo gulugufe valavu, kutayikira mtengo si wamkulu kuposa zofunika zofunika
Anticorrosion yamkati ndi yakunja ya ma check valve
1, valavu thupi (kuphatikizapo gearbox) mkati ndi kunja, choyamba ayenera kuwomberedwa kuphulika mchenga kuyeretsa dzimbiri, kuyesetsa electrostatic kupopera mbewu mankhwalawa ufa sanali poizoni epoxy utomoni, makulidwe mpaka 0?Kuposa 3 mm.Large valavu electrostatic kupopera sanali poizoni epoxy utomoni ndi kovuta, ayeneranso brushed, utsi ndi ofanana sanali poizoni epoxy utoto.
2. Zigawo zonse za thupi la valve ndi mbale ya valve zimafuna anticorrosion yokwanira.Kumbali imodzi, sichita dzimbiri ngati itawaviika m'madzi, ndipo sipadzakhala dzimbiri la electrochemical pakati pazitsulo ziwirizi.Mbali ziwiri zosalala pamwamba kuti kuchepetsa kukana madzi.
3. Zofunikira zaumoyo za anticorrosive epoxy resin kapena utoto mu thupi la valve ziyenera kuyesedwa ndi akuluakulu ovomerezeka.Mankhwala ndi zinthu zakuthupi ziyeneranso kukwaniritsa zofunikira.
Kuyika ma vavu ndi mayendedwe
1. Mbali zonse ziwiri za valve ziyenera kukhazikitsidwa ndi mbale yotchinga kuwala.
2. Mavavu apakati ndi ang'onoang'ono amangidwe ndi chingwe cha udzu ndikunyamulidwa m'mitsuko.
3, valavu yayikulu yayikulu ilinso ndi cholembera chosavuta chamatabwa chokhazikika, kuti zisawonongeke panthawi yamayendedwe
Nthawi yotumiza: Oct-22-2021