A335 P92(yofanana ndi giredi yokhazikika ya ku China ya 10Cr9MoW2VNbBN) ndi chitsulo cham'badwo wotsatira cholimba kutentha cha martensitic chopangidwa kuchokera kuP91Mwa kuwonjezera tungsten (W) ku 9% ya chromium steel ndikuwonjezera molybdenum equivalent (Mo+0.5W) kuchokera pafupifupi 1% mu P91 kufika pafupifupi 1.5%, magwiridwe antchito a chipangizochi kutentha kwambiri awonjezeka kwambiri.

Madera ofunikira ogwiritsira ntchito ndi awa:

Kupanga Mphamvu Yotentha Kwambiri: P92 ndiye chinthu chofunikira kwambiri pa mapaipi akuluakulu a nthunzi ndikutenthetsanso mapaipi a nthunzi m'mayunitsi a 1000MW-class ultra-supercritical, okhala ndi kutentha kwakukulu kwa kapangidwe kake kogwira ntchito kwa 625°C. Pa 600°C, kapangidwe kake kovomerezeka kamafika pa 128MPa, ndipo mphamvu yake imakwera kwambiri.≥100MPa. Mphamvu yake yophulika kwambiri ya creep rupture ndi yokwera ndi pafupifupi 30% kuposa P91, ndipo unit imodzi ya kilowatt imodzi imagwiritsa ntchito matani 800.

Zigawo Zofunika za Boiler: Zimagwiritsidwa ntchito kwambiri mu ma boiler headers, ma superheaters, ma reheaters, ndi zida zina zopanikizika. Ndi imodzi mwa mitundu yachitsulo yomwe imakondedwa kwambiri popanga zida zazikulu zamagetsi zamagetsi mdziko muno komanso padziko lonse lapansi.

Makampani Opanga Mafuta: Amayikidwa m'mapaipi a hydrogenation reactor, machubu osweka a uvuni, ndi machitidwe ena otentha kwambiri komanso opanikizika kwambiri.

Mphamvu ya Nyukiliya: Imagwiritsidwanso ntchito m'mapaipi ena a mbali yachiwiri a zomera zamphamvu za nyukiliya za m'badwo wachitatu monga AP1000.

Poyerekeza ndi zitsulo zosapanga dzimbiri za austenitic, P92 imapereka zabwino kuphatikizapo kukana dzimbiri mwamphamvu, kutentha kwambiri, komanso kuchuluka kwa kutentha kochepa.

II. Mafakitale a Zitsulo a M'nyumba Okhala ndi Ubwino Wopikisana

Kupanga chitsulo cha P92 n'kovuta, kumafuna miyezo yapamwamba kwambiri pakupanga njira ndi kuwongolera kupanga. Pakadali pano, ndi mafakitale ochepa okha achitsulo am'nyumba omwe akwanitsa kupanga bwino.

1. Gulu la Beizhong—Mtsogoleri wa Gawo la Msika

Gulu la Beizhong lili ndi gawo la msika loposa 80% mu gawo la mapaipi achitsulo a P92 am'nyumba. Zogulitsa zake zidutsa zizindikiro 28 zowunikira, ndipo zomwe zachitika paukadaulo zapambana Mphoto Yoyamba ya China Electric Power Science and Technology Innovation. Gululi lapeza mwayi wokwanira kuchokera kuΦ89 mpakaΦ813, yokhala ndi mbiri yayitali yaukadaulo popereka mapaipi akuluakulu anayi a mayunitsi ofunikira kwambiri.

2. Gulu la Yonggang—Ubwino wa Kupanga Billet

Yonggang Group inayesa bwino kupanga SA335 P92 mu 2017 ndipo tsopano ili ndi mphamvu zopangira ma billets ozungulira opangidwa mosalekeza m'njira zosiyanasiyana kuyambiraφ380mm mpakaφ800mm, zomwe zimapatsa mwayi wopikisana pamsika wa billet yayikulu mdziko muno. P91, P92, ndi zinthu zina zazikulu zozungulira za kampaniyo zili ndi malo otsogola pamsika ku China. Kuphatikiza apo, yasankhidwa ngati fakitale yowonetsera zinthu zanzeru padziko lonse, ikupititsa patsogolo kuwongolera khalidwe la zinthu komanso kukonza mtengo.

3. Hebei Hongrun Nuclear Equipment—Zida Zapadera ndi Njira

Hongrun Nuclear Equipment imagwiritsa ntchito makina osindikizira ozungulira olemera matani 50,000 kuti ipange mapaipi achitsulo chopanda msoko a P92 okhala ndi mainchesi akuluakulu. Mogwirizana ndi Baowu Special Steel, imagwiritsa ntchito ma ingot achitsulo apamwamba kwambiri, zomwe zimapangitsa kuti ikhale ndi zinthu zokhala ndi kapangidwe kolimba komanso magwiridwe antchito abwino kwambiri. Mapaipi ake achitsulo a P92 avomerezedwa ndi National Power Equipment Center, ndipo zizindikiro zonse zogwirira ntchito zikukwaniritsa zofunikira za GB/T 5310 ndi ASME SA335.

4. Opanga Ena

Baosteel Special Steel, Tianguan Group, Xinxing Ductile Iron, ndi mabizinesi ena nawonso akwaniritsa kutsimikizika kwa kupanga zinthu zokhudzana ndi P92, zomwe zikulimbikitsa njira yopezera zinthuzi.

III. Ubwino Wonse Wopikisana

Ubwino wa mpikisano wa mafakitale achitsulo a m'nyumba mu zinthu za P92 umaonekera makamaka mu: choyamba, kuchepetsa ndalama zogulira kudzera mu kusintha kwa zinthu zotumizidwa kunja; chachiwiri, kukhazikika kwa khalidwe la zinthu zomwe zimayendetsedwa ndi kusintha kwanzeru komanso kwa digito (monga, pulojekiti ya fakitale yanzeru ya Yonggang idapeza kuwonjezeka kwa kupanga ndi 12% komanso kuchepetsa chilema ndi 15.7%); ndipo chachitatu, kupita patsogolo kosalekeza m'njira zapamwamba monga mapaipi akuluakulu ndi khoma lokhuthala, zomwe zimachepetsa pang'onopang'ono kudalira zinthu zotumizidwa kunja.