A335 P92(ehambelana nomgangatho oqhelekileyo waseTshayina i-10Cr9MoW2VNbBN) yintsimbi yesizukulwana esilandelayo ye-martensitic engatshisi ubushushu eyenziwe ngeI-P91.Ngokongeza i-tungsten (W) kwi-9% yentsimbi ye-chromium kunye nokunyusa i-molybdenum equivalent (Mo+0.5W) ukusuka kwi-1% kwi-P91 ukuya kwi-1.5%, ukusebenza kwezixhobo kubushushu obuphezulu kuphuculwe kakhulu.

Iindawo eziphambili zokusetyenziswa ziquka:

Ukuveliswa koMbane oshushu kakhulu: I-P92 yeyona nto iphambili kwiipayipi eziphambili zomphunga kwaye ifudumeza kwakhona iipayipi zomphunga kwiiyunithi ze-1000MW ezikumgangatho ophezulu kakhulu, kunye nobushushu obuphezulu boyilo lokusebenza obuyi-625°C. Kwi-600°C, uyilo oluvumelekileyo lufikelela kwi-128MPa, kunye namandla okuhamba ngobushushu obuphezulu≥I-100MPa. Amandla ayo okuqhekeka kobushushu obuphezulu angaphezulu ngama-30% kune-P91, kwaye iyunithi enye yesigidi seekilowatt itya ukuya kuthi ga kwiitoni ezingama-800.

Izinto Eziphambili Zebhoyila: Zisetyenziswa kakhulu kwii-boiler headers, ii-superheaters, ii-reheaters, kunye nezinye iindawo zoxinzelelo. Le yenye yeendlela zentsimbi ezikhethwayo kwimveliso yezixhobo ezinkulu zezityalo zamandla obushushu ngaphakathi nangaphandle.

Ishishini lePetrochemical: Lisetyenziswa kwiipayipi zehydrogenation reactor, kwiityhubhu ze-furnace eziqhekekayo, nakwezinye iinkqubo zobushushu obuphezulu kunye noxinzelelo oluphezulu.

Amandla eNyukliya: Akwasetyenziswa kwiinkqubo zemibhobho esecaleni lesibini kwizityalo zamandla enyukliya zesizukulwana sesithathu ezifana ne-AP1000.

Xa kuthelekiswa neentsimbi ezingenasici ze-austenitic, i-P92 inika iingenelo eziquka ukumelana nokugqwala okunamandla, ukuqhuba okuphezulu kobushushu, kunye ne-coefficient ephantsi yokwandisa ubushushu.

II. IiMill zeNsimbi zasekhaya ezineengenelo zokhuphiswano

Uphuhliso lwentsimbi ye-P92 lunzima, lufuna imigangatho ephezulu kakhulu kuyilo lwenkqubo kunye nolawulo lwemveliso. Okwangoku, linani elilinganiselweyo leemili zentsimbi zasekhaya ezifikelele kumandla emveliso azinzileyo.

1. Iqela laseBeizhong—Inkokeli yesabelo seMarike

Iqela leBeizhong linesabelo semarike esingaphezulu kwe-80% kwicandelo leepayipi zentsimbi zeP92 zasekhaya. Iimveliso zalo zidlula izalathisi zokuhlolwa ezingama-28, kwaye impumelelo yalo yetekhnoloji iphumelele iMbasa yokuQala yeSayensi yoMbane kunye neTekhnoloji yoMbane yaseTshayina. Eli qela lifumene ukugubungela okupheleleyo ukusukaΦ89 ukuya kuΦ813, enerekhodi ende yobunjineli ekunikezeleni ngemibhobho emine emikhulu yeeyunithi ezibaluleke kakhulu.

2. Iqela leYonggang—Iingenelo kwiMveliso yeBillet

IYonggang Group yavelisa ngempumelelo i-SA335 P92 ngo-2017 kwaye ngoku inako ukuvelisa ii-billets ezijikelezayo eziqhubekayo kwiinkcukacha eziqala kwiφ380mm ukuya kuthi gaφI-800mm, nto leyo eyinika ithuba lokukhuphisana kwimarike yasekhaya enkulu. Iimveliso ze-P91, P92, kunye nezinye iimveliso ze-billet ezinkulu ezijikelezileyo zenkampani zibambe isikhundla esiphambili kwimarike eTshayina. Ukongeza, ikhethwe njengomzi-mveliso wokubonisa ukwenziwa kwezinto ngobuchule kwinqanaba likazwelonke, iphucula rhoqo ulawulo lomgangatho wemveliso kunye nokwenza ngcono iindleko.

3. Izixhobo zeNyukliya zaseHebei Hongrun—Izixhobo kunye neNkqubo eyahlukileyo

I-Hongrun Nuclear Equipment isebenzisa umatshini wokushicilela othe nkqo we-extrusion oneetoni ezingama-50,000 ukuvelisa imibhobho yentsimbi engenamthungo ye-P92 enobubanzi obukhulu. Isebenzisana ne-Baowu Special Steel, isebenzisa ii-ingots zentsimbi ezikumgangatho ophezulu, nto leyo ekhokelela kwiimveliso ezinesakhiwo esixineneyo kunye nokusebenza okugqwesileyo. Imibhobho yayo yentsimbi ye-P92 iphumelele isiqinisekiso semveliso yiZiko leZixhobo zoMbane leSizwe, kwaye zonke izalathisi zokusebenza ziyahlangabezana neemfuno ezisemgangathweni ze-GB/T 5310 kunye ne-ASME SA335.

4. Abanye Abavelisi

I-Baosteel Special Steel, iTianguan Group, iXinxing Ductile Iron, kunye namanye amashishini nawo afikelele kwisiqinisekiso sokuveliswa ngobuninzi kweemveliso ezinxulumene ne-P92, nto leyo ekhuthaza inkqubo yokwenziwa kwale nto.

III. Iingenelo ezipheleleyo zoKhuphiswano

Iingenelo zokukhuphisana zeemilo zentsimbi zasekhaya kwiimveliso ze-P92 zibonakala kakhulu kwezi: okokuqala, iindleko zokuthenga ezincitshisiweyo kakhulu ngokutshintshwa kwempahla engeniswayo; okwesibini, ukuzinza komgangatho wemveliso okuphuculweyo okuqhutywa lutshintsho olukrelekrele nolwedijithali (umz., iprojekthi yefektri ekrelekrele yaseYonggang ifikelele kwinqanaba lokunyuka kwemveliso nge-12% kunye nokunciphisa izinga leziphene nge-15.7%); kwaye okwesithathu, impumelelo eqhubekayo kwiinkcukacha eziphezulu ezifana nemibhobho emikhulu kunye nodonga olude, okuncitshisa kancinci ukuxhomekeka ekungenisweni kwempahla.