Zida za valve yachitsulo, kapangidwe kake, zowunikira Zofunikira pazambiri

Zida za valve yachitsulo, kapangidwe kake, kuyendera zofunikira zonse Zofunikira za valve yachitsulo Muyezo uwu umatchula kupanikizika ndi kutentha, zipangizo, zofunikira za mapangidwe, kuyang'anira ndi kuyesa, kuyang'anira ndi kukonzanso kosawononga ndi kukonza ma valve achitsulo. M'magulu amtundu wapagulu, mulingo wapakatikati pakati pa kutentha komwe kwatchulidwa kapena kupanikizika kungadziwike ndi kumasulira kwa mzere. Koma kwa mavavu a flanged, njira yolumikizira mizere siloledwa kudziwa kuthamanga mwadzina. Kutentha komwe kumayenderana ndi kukakamizidwa kovomerezeka ndi kutentha kwapakati panyumba, komwe kumakhala kofanana ndi kutentha kwa sing'anga mmenemo. 1 Range Muyezo uwu umatanthawuza kupanikizika ndi kutentha kwa kutentha, zipangizo, zofunikira za mapangidwe, kuyang'anira ndi kuyesa, kuyika chizindikiro ndi kuyang'anira kosawononga ndi kukonza ma valve achitsulo. Muyezo uwu ukugwiritsidwa ntchito ku zipangizo zomwe zalembedwa mu Table 1. Thupi likhoza kuponyedwa, kupangidwa ndi kutenthedwa, kugwirizanitsa mapeto kungakhale flanged, ulusi ndi welded, ndi valavu clip-wokwera ndi single-flanged. Muyezo uwu umagwira ntchito pazigawo za ma valve: a) Kuthamanga mwadzina PN16 ~ PN760 mavavu, kuthamanga kwadzina PN760 * ndi koyenera kuwotcherera ma valve; b) Kukula mwadzina sikuposa DN125. valavu yolumikizira kumapeto kwa flange ndi valavu yolumikizira matako; c) Ma valavu opangidwa ndi welded ndi ulusi mapeto mavavu ndi kukula mwadzina osati kuposa DN65: d) ulusi mapeto mavavu ndi kutentha ovotera osapitirira 540 ℃ ndi kuthamanga mwadzina osaposa PN420; e) Mavavu opindika okhala ndi mphamvu yamwadzina PN16~PN25, kutentha kwake sikuposa 540℃ 2 Zolemba zokhazikika Zomwe zili m'malemba otsatirawa zimakhala mawu a Mulingo uwu potengera Mulingo uwu. Pamatchulidwe apanthawi yake, zosintha zonse (kupatulapo zolakwika) kapena zosinthidwa sizikugwira ntchito pa Mulingo uno, komabe, omwe akuchita nawo mapangano pansi pa Mulingo uwu akulimbikitsidwa kuti afufuze kagwiritsidwe ntchito ka zolembedwazi. Kwa maumboni omwe sanatchulidwe, matembenuzidwe awo amagwira ntchito pamlingo uwu. GB 150-1998 chotengera chachitsulo choponderezedwa ndi GB/T 193-2003 Common Thread Diameter ndi screw series (ISO 261:1998, MOD) GB/T 197-2003 Common thread tolerance (ISO 965-1:1998,MOD) GB/T 228 TS EN ISO 6892:1998 Zipangizo zachitsulo - Njira yoyesera yoyezera kutentha kwa chipinda (eqvISO 6892:1998) Misa ya carbon structural chitsulo yotentha yopyapyala ndi mizere yotakata (neq TOCT 1577) GB/T 1047-2005 Mapaipi a DN (miyeso yodziwika) - Tanthauzo ndi kusankha (ISO 6708:1996, > GB/T 1048-2005 Chitoliro PN(kuthamanga mwadzina) tanthauzo ndi kusankha (ISO/CD7268:1996.) JIS 64304: 1984) GB/T 6654-1996 Chitsulo mbale zotengera kuthamanga GB/T 7306-2000 Chitoliro ulusi, 55 ° losindikizidwa (eqv ISO 7-1: 1994) GB/T 9113 ~ 9123-2000 Kufotokozera chitsulo chitoliro flange GB/T 9124-2000 zitsulo chitoliro flanges GB/T12220 Universal Valve chizindikiro (GB/T12220-1989, > GB/T12221 zitsulo valavu dongosolo kutalika (GB/T12221--2005, ISO 5752; 1982 , MOD22 General 12 General 1) valavu mpweya zitsulo forgings luso mikhalidwe GB/T 12229 wamba valavu mpweya zitsulo castings luso specifications GB/T 12230 general cholinga valavu austenitic zitsulo castings specifications GB/T 12716-2002 60° losindikizidwa chitoliro ulusi (eqv ASME B1.20.1:1992) GB /T 13927 General valve pressure test (neq ISO 5208:1982) Machubu zitsulo zosapanga dzimbiri zoyendera madzi GB/T 14976-2002 GB/T 1751-1992 Mavavu opangira ma socket weld ma weld ndi miyeso yamapaipi (1 Zofunikira Zonse) ) Muyezo uwu ukugwiritsidwa ntchito ku zipangizo zosiyanasiyana zomwe zalembedwa mu Table 1. Thupi likhoza kuponyedwa, lopangidwa kapena lopangidwa ndi welded, ndipo mapeto ake amatha kukhala ndi flanged, threaded or welded, komanso ma valve opangira clip-on ndi single-flange mounting. Mawu omwe ali m'malemba otsatirawa amakhala mawu a Mulingo uwu potengera Mulingo uwu. Pamatchulidwe apanthawi yake, zosintha zonse (kupatulapo zolakwika) kapena zosinthidwa sizikugwira ntchito pa Mulingo uno, komabe, omwe akuchita nawo mapangano pansi pa Mulingo uwu akulimbikitsidwa kuti afufuze kagwiritsidwe ntchito ka zolembedwazi. Mulingo uwu umagwira ntchito ku maumboni onse omwe sanatchulidwe. 1 Range Muyezo uwu umatanthawuza kupanikizika ndi kutentha kwa kutentha, zipangizo, zofunikira za mapangidwe, kuyang'anira ndi kuyesa, kuyika chizindikiro ndi kuyang'anira kosawononga ndi kukonza ma valve achitsulo. Muyezo uwu ukugwiritsidwa ntchito ku zipangizo zomwe zalembedwa mu Table 1. Thupi likhoza kuponyedwa, kupangidwa ndi kutenthedwa, kugwirizanitsa mapeto kungakhale flanged, ulusi ndi welded, ndi valavu clip-wokwera ndi single-flanged. Muyezo uwu umagwira ntchito pazigawo za ma valve: a) Kuthamanga mwadzina PN16--PN760 valavu, kuthamanga kwadzina PN760 ndi koyenera kuwotcherera ma valve; b) Ma valve kumapeto kwa flanged ndi matako welded end mavavu kukula mwadzina osati kuposa DN1250; c) Ma valavu opangidwa ndi welded ndi ma valve omwe ali ndi ulusi wocheperako kuposa DN65: d) Mavavu okhala ndi ulusi wolumikizira malekezero omwe kutentha kwake sikuposa 540 ℃ ndipo kukakamiza mwadzina sikuposa PN420; e) Mavavu opindika okhala ndi mphamvu yamwadzina PN16~PN25, kutentha kwake sikuposa 540℃ 2 Zolemba zokhazikika Zomwe zili m'malemba otsatirawa zimakhala mawu a Mulingo uwu potengera Mulingo uwu. Pamatchulidwe apanthawi yake, zosintha zonse (kupatulapo zolakwika) kapena zosinthidwa sizikugwira ntchito pa Mulingo uno, komabe, omwe akuchita nawo mapangano pansi pa Mulingo uwu akulimbikitsidwa kuti afufuze kagwiritsidwe ntchito ka zolembedwazi. Mulingo uwu umagwira ntchito ku maumboni onse omwe sanatchulidwe. GB 150-1998 chitsulo kuthamanga chombo GB/T 193-2003 Common Ulusi awiri ndi phula mndandanda (ISO 261:1998, MOD) GB/T 197-2003 Common ulusi kulolerana (ISO 965-1; 1998, MOD) GB/T 228 -2002 Zitsulo zachitsulo -- Kuyesa kwamphamvu kutentha kwachipinda (eqv IS0 6892:1998) Misa ya carbon structural chitsulo yotentha yokulungidwa pepala wandiweyani ndi mzere waukulu (neq TOCT 1577) GB/T 1047-2005 Mapaipi a DN (miyeso yodziwika) -- Tanthauzo ndi kusankha (ISO 6708:1995,> GB/T 1048-2005 Chitoliro PN(kupanikizika mwadzina) tanthauzo ndi kusankha (ISO/CD 7268:1996.) neq JIS 64304: 1984) Zitsulo zotengera zokakamiza GB/T 7306-2000 Kusindikiza ulusi wa chitoliro (eqv 1SO 7-1:1994) GB/T 9113-- 9123-2000 chitsulo chitoliro chachitsulo Chidziwitso cha GB/T 9124-200 chitsulo chitoliro flanges GB/T 12220 Universal Valve chizindikiro (GB/T 12220-1989,> GB/T12221 Metal valavu kapangidwe kutalika (GB/T12221--2005, ISO 5752:1982 MOD) GB/T 12228 general vavu mpweya zitsulo forgings luso GB/T 12229 wamba valavu mpweya zitsulo castings luso specifications GB/T 12230 general cholinga valavu austenitic zitsulo castings specifications GB/T 12716-2002 60° losindikizidwa chitoliro ulusi (eqv ASME B1.20.1:1992) GB/T 13927 General vavu kuthamanga mayeso (ney ISO5X208:1982) Machubu achitsulo osapangana osasunthika oyendetsa madzimadzi Zinthu zomangira za mavavu -- zolumikizira zolumikizira zitsulo ndi ma mapaipi -- miyeso JB 4726--2000 zopangira kaboni ndi chitsulo chochepa cha aloyi paziwiya zopanikizika JB 4727-200. Zotengera zotsika kutentha zotsika zokhala ndi carbon ndi otsika aloyi zitsulo forgings JB 4728-200. Zopangira zitsulo zosapanga dzimbiri zazitsulo zoponderezedwa Mafotokozedwe a JB/T 5263 Power Station Valve Steel Castings (ney ANSI/ASTM A217M) JB/T 6439 Valve compression cast steel maginito tinthu tating'onoting'ono Kuwunika kwa radiographic kwa kuponderezedwa kwazitsulo za JB/T 6440 Valve JB/ T 6902 valavu kuponyedwa zitsulo - njira yoyesera yolowera madzi JB/T '6903 valavu yonyezimira zitsulo akupanga njira yoyendera JB/T 7248 valavu yotsika kutentha kuponyedwa zitsulo JB/T 7927 vavu zitsulo castings maonekedwe zofunika 3 Kupanikizika kwa kutentha mlingo 3.1 mwachidule 3.1.1 kutentha-kutentha kwapakati 3.1.2 Kutentha kwa kutentha kwa mpweya kudzakhala monga momwe tafotokozera mu Table 2, ndipo kudzakhala monga momwe tafotokozera mu GB/T 9124-2000 kupatula momwe tafotokozera mu Table 2. zofunikira za muyeso uwu, kupatula zomwe zimakwaniritsa zofunikira za NDT za mavavu a Appendix C, zimasankhidwa ngati ma valve omwe ali ndi mphamvu zochepetsera kutentha monga momwe zafotokozedwera mu 3.1.1. 3.1.3 Ma valve othamanga mwapadera Ma valve omwe amakwaniritsa zofunikira za 3.1.2 ndi zomwe zimakwaniritsa zofunikira za NDT za Zowonjezera C ma valve ali ndi kutentha kwa kutentha monga momwe tafotokozera mu matebulo D.1L kupyolera mu D.12 mu Zowonjezera D. osagwiritsidwa ntchito ku ma valve otsiriza a flanged. 3.1.4 Vavu yapakatikati M'magulu amtundu wapagulu, kuchuluka kwapakati pakati pa kutentha komwe kumatchulidwa kapena kupanikizika kungadziwike ndi kutanthauzira kwa mzere. Koma kwa mavavu a flanged, njira yolumikizira mizere siloledwa kudziwa kuthamanga mwadzina. 3.1.5 Msonkhano wa ma welds ma welds amawotcherera chonse kapena mbali ndi castings, forgings, ndodo, mbale kapena mapaipi adzakwaniritsa zofunikira izi: a) kuwotcherera ndi kutentha kutentha kwa welds kudzachitika molingana ndi zomwe GB 150-1998 ; b) Kuunika kwa weld ndi kuvomereza kudzakhala molingana ndi zomwe GB 150-1998; c) Zomwe zili pamwambazi sizikukhudza kusindikiza kapena kuwotcherera, monga kuwotcherera zisindikizo zobwerera kumbuyo, mphete zapampando, zikwama zonyamulira ndi zida zothandizira.