A335 P92(ehambisana nebanga elijwayelekile laseShayina elingu-10Cr9MoW2VNbBN) iyinsimbi yesizukulwane esilandelayo engashisi ukushisa eyenziwe nge-martensiticI-P91Ngokufaka i-tungsten (W) ku-9% yensimbi ye-chromium nokwandisa i-molybdenum equivalent (Mo+0.5W) kusuka cishe ku-1% ku-P91 kuya cishe ku-1.5%, ukusebenza kwezinga lokushisa eliphezulu lezinto kuthuthukiswe kakhulu.

Izindawo eziyinhloko zokufaka isicelo zifaka:

Ukukhiqizwa Kwamandla Okushisa Okubaluleke Kakhulu: I-P92 iyinto eyinhloko yamapayipi amakhulu omusi kanye nokushisa kabusha amapayipi omusi kumayunithi angu-1000MW abaluleke kakhulu, anezinga lokushisa lokusebenza eliphakeme kakhulu elingu-625°C. Ku-600°C, ukucindezeleka okuvunyelwe umklamo kufinyelela ku-128MPa, kanye namandla okuhamba okushisa okuphezulu≥100MPa. Amandla ayo okuqhuma kokuqhuma kokushisa okuphezulu aphakeme cishe ngo-30% kune-P91, kanti iyunithi eyodwa yama-kilowatt ayisigidi idla amathani afinyelela ku-800.

Izingxenye Eziyinhloko Zebhoyila: Zisetshenziswa kabanzi kuma-boiler headers, ama-superheater, ama-reheater, nezinye izingxenye zokucindezela. Ingenye yezinhlobo zensimbi ezikhethwayo zokukhiqiza imishini emikhulu yezitshalo zamandla okushisa ngaphakathi nangaphandle.

Imboni Ye-Petrochemical: Isetshenziswa kumapayipi e-hydrogenation reactor, amashubhu esithando esiqhekekayo, kanye nezinye izinhlelo zokushisa okuphezulu kanye nokucindezela okuphezulu.

Amandla eNyukliya: Asetshenziswa futhi ezinhlelweni zamapayipi eziseceleni kwesibili zezitshalo zamandla enuzi zesizukulwane sesithathu njenge-AP1000.

Uma kuqhathaniswa nezinsimbi ezingagqwali ze-austenitic, i-P92 inikeza izinzuzo ezifaka phakathi ukumelana nokugqwala okunamandla, ukuhanjiswa okuphezulu kokushisa, kanye ne-coefficient yokukhulisa ukushisa ephansi.

II. Izigayo Zensimbi Zasekhaya Ezinezinzuzo Zokuncintisana

Ukuthuthukiswa kwensimbi ye-P92 kuyinselele, kudinga amazinga aphezulu kakhulu ekuklanyweni kwenqubo kanye nokulawulwa kokukhiqiza. Njengamanje, inani elilinganiselwe kuphela lezimboni zensimbi zasekhaya ezifinyelele umthamo wokukhiqiza ozinzile.

1. Iqembu laseBeizhong—Umholi Wesabelo Semakethe

I-Beizhong Group inesabelo semakethe esingaphezu kuka-80% emkhakheni wamapayipi ensimbi wasekhaya i-P92. Imikhiqizo yayo idlula izinkomba zokuhlola ezingu-28, kanti impumelelo yayo kwezobuchwepheshe iwine umklomelo wokuqala we-China Electric Power Science and Technology Innovation. Leli qembu lithole ukumbozwa okukhulu kusukelaΦ89 kuya ku-Φ813, enamarekhodi amakhulu obunjiniyela ekuhlinzekeni ngamapayipi amane amakhulu amayunithi abaluleke kakhulu.

2. Iqembu le-Yonggang—Izinzuzo Ekukhiqizweni Kwe-Billet

I-Yonggang Group yazama ngempumelelo ukukhiqiza i-SA335 P92 ngo-2017 futhi manje inamandla okukhiqiza ama-billets ajikelezayo aqhubekayo ngezincazelo ezisukela ku-φ380mm kuya kuφ800mm, okwenza kube yimpumelelo yokuncintisana emakethe yasekhaya enkulu ye-billet. Imikhiqizo yenkampani ye-P91, P92, kanye neminye i-billet enkulu eyindilinga ene-alloy ephezulu iphethe isikhundla esiphambili emakethe eShayina. Ngaphezu kwalokho, ikhethwe njengefektri yokubonisa ukukhiqiza okuhlakaniphile ezingeni likazwelonke, ithuthukisa njalo ukulawulwa kwekhwalithi yomkhiqizo kanye nokwenza ngcono izindleko.

3. Imishini Yenuzi yaseHebei Hongrun—Imishini Nenqubo Eyingqayizivele

I-Hongrun Nuclear Equipment isebenzisa umshini wokucindezela oqondile ongamathani angu-50,000 ukukhiqiza amapayipi ensimbi angenamthungo e-P92 anobubanzi obukhulu. Ngokubambisana ne-Baowu Special Steel, isebenzisa izingodo zensimbi ezisezingeni eliphezulu, okuholela emikhiqizweni enesakhiwo esiqinile kanye nokusebenza okuhle kakhulu. Amapayipi ayo ensimbi e-P92 aphumelele isitifiketi somkhiqizo yi-National Power Equipment Center, nazo zonke izinkomba zokusebenza zihlangabezana nezidingo ezijwayelekile ze-GB/T 5310 kanye ne-ASME SA335.

4. Abanye Abakhiqizi

I-Baosteel Special Steel, i-Tianguan Group, i-Xinxing Ductile Iron, kanye nezinye izinkampani nazo zifinyelele ukuqinisekiswa kokukhiqizwa okukhulu kwemikhiqizo ehlobene ne-P92, okukhuthaza inqubo yokwenziwa kwale nto.

III. Izinzuzo Eziphelele Zokuncintisana

Izinzuzo zokuncintisana zemishini yensimbi yasekhaya emikhiqizweni ye-P92 zibonakala kakhulu ku: okokuqala, izindleko zokuthenga ezincishisiwe kakhulu ngokushintshaniswa kokungenisa; okwesibili, ukusimama kwekhwalithi yomkhiqizo okuthuthukisiwe okuqhutshwa ukuguqulwa okuhlakaniphile nokwedijithali (isb., iphrojekthi yefektri ehlakaniphile kaYonggang ifinyelele ukwanda kokusebenza kahle kokukhiqiza okungaphezu kuka-12% kanye nokwehla kwezinga lokukhubazeka okungu-15.7%); kanye nesithathu, ukuthuthuka okuqhubekayo ezicacisweni eziphezulu njengepayipi elikhulu nobubanzi obukhulu, okunciphisa kancane kancane ukuncika kokungenisa.