Malangizo ogwiritsira ntchito valve.

Njira yogwiritsira ntchito valavu ndiyonso kuyang'ana ndi kugwiritsira ntchito valve. Komabe, zinthu zotsatirazi ziyenera kuganiziridwa pogwiritsira ntchito valve.

① Vavu yotentha kwambiri. Kutentha kumakwera pamwamba pa 200 ° C, ma bolts amatenthedwa ndikutalika, zomwe zimakhala zosavuta kuti chisindikizo cha valve chiwonongeke. Panthawiyi, ma bolts ayenera kukhala "otentha kwambiri", ndipo sikoyenera kuchita zowotcha zotentha pamalo otsekedwa kwathunthu, kuti valavu isakhale yakufa komanso yovuta kutsegula pambuyo pake. .

②M'nyengo yomwe kutentha kuli pansi pa 0 ℃, tcherani khutu ndikutsegula pulagi ya mpando wa vavu ya mavavu omwe amayimitsa nthunzi ndi madzi kuchotsa madzi osungunuka ndi madzi oundana, kuti mupewe kuzizira ndi kusweka valavu. Samalani kuteteza kutentha kwa ma valve omwe sangathe kuthetsa kusonkhanitsa kwa madzi ndi ma valve omwe amagwira ntchito mosalekeza.

③ Chovala chonyamula sichiyenera kukanikizidwa mwamphamvu kwambiri, ndipo kusinthasintha kwa tsinde la valve kuyenera kupambana (ndizolakwika kuganiza kuti kulimba kwa chithokomiro, ndibwino, kufulumizitsa kuvala kwa tsinde la valve ndikuwonjezeka. torque yogwira ntchito). Pansi pazikhalidwe zopanda zoteteza, kulongedzako sikungasinthidwe kapena kuwonjezeredwa kupsinjika.

④Panthawi ya opareshoni, zochitika zosazolowereka zomwe zimapezeka pakumvetsera, kununkhiza, kuwona, kukhudza, ndi zina zotere ziyenera kufufuzidwa mosamala pazifukwa zake, ndipo zomwe zili m'mayankho awo ziyenera kuthetsedwa munthawi yake;

⑤ Wogwira ntchitoyo ayenera kukhala ndi bukhu lapadera la logi kapena bukhu lolembera, ndipo tcherani khutu kuti alembe ntchito za ma valve osiyanasiyana, makamaka ma valve ofunikira, kutentha kwakukulu ndi ma valve othamanga kwambiri ndi ma valve apadera, kuphatikizapo zipangizo zawo zotumizira. Ayenera kudziwidwa kulephera, chithandizo, magawo olowa m'malo, etc., zinthuzi ndizofunikira kwa wogwiritsa ntchitoyo, ogwira ntchito yokonza ndi wopanga. Khazikitsani chipika chapadera chokhala ndi maudindo omveka bwino, omwe ndi opindulitsa kulimbikitsa kasamalidwe.