GB/T 5310-2017 ndiyo hunyanzvi hwemapaipi esimbi asina musono emaboiler ane simba guru muchiyero chenyika yeChina. Inoshanda pakugadzira maboiler ane simba guru, mapaipi, nezvimwe zvinoshandiswa zvine simba guru uye pamusoro.
Mutemo uyu unosanganisira mhando dzakasiyana dzesimbi dzesimbi, idzo 12CrMoG ne15CrMoG dziri simbi mbiri dzesimbi dzesimbi dzinowanzoshandiswa dzine mashandisirwo akawanda uye mabhenefiti akakosha.
12CrMoGIsimbi ye chromium-molybdenum alloy ine simba rekudzivirira kupisa kwakanyanya uye oxidation. Yakakodzera ma boiler superheaters, ma reheaters, steam piping, nezvimwe zvinhu zvinoshanda patembiricha iri pasi pe 540°C. Zvakanakira zvayo zvinosanganisira simba re creep rakawanda uye simba rekutsungirira, uye kugona kuchengetedza hunhu hwakagadzikana hwemakanika munzvimbo dzinopisa zvakanyanya uye dzine kumanikidzwa kwakanyanya. Inokwanisawo kusundirwa uye kugadziriswa zvakanaka, zvichiita kuti zvive nyore kugadzira nekuisa.

15CrMoGimwe simbi ye chromium-molybdenum alloy ine mashandiro akanaka kupfuura 12CrMoG. Yakakodzera zvikamu zve boiler zvine pressure yakakwira zvinoshanda patembiricha iri pasi pe550°C. Chinhu ichi chinopa simba rakakwirira rekupisa uye rekudzivirira oxidation, zvichiita kuti ive yakakodzera kugadzira zvinhu zvakakosha zvakaita se boiler headers nemapipi makuru e steam. 15CrMoG inewo resistance yakanakisa yekuora kwe hydrogen, ichidzivirira zvinobudirira kuora kwezvinhu munzvimbo dzine hydrogen yakakwira uye ine pressure yakakwira uye inowedzera hupenyu hwemidziyo.

Idzi simbi mbiri dzesimbi dzinoshandiswa zvakanyanya mumidziyo inodziya zvakanyanya, ine simba guru muindasitiri yemagetsi, petrochemical, uye makemikari. Zvakanakira zvadzo zvinonyanya kuratidzwa muzvinhu zvinotevera: Chekutanga, dzinoratidza hunhu hwakanaka hwemakanika anodziya zvakanyanya, zvichidzigonesa kutsungirira mamiriro ekushanda anodziya kwenguva refu, ane simba guru; chechipiri, dzinoratidza kugadzikana kwakanaka kwezvikamu, zvichiita kuti dzisanyanya kukanganiswa nekuora kwechivako panguva yekushanda kwenguva refu; chechitatu, dzinoratidza kugona kusveta uye kugadziriswa zvakanaka, zvichiita kuti kugadzirwa nekugadzirisa kuve nyore; uye chekupedzisira, kushandiswa kwadzo kunovandudza zvakanyanya kuchengetedzeka nekuvimbika kwemidziyo, kunoderedza nguva yekushanda nekugadzirisa, uye kunoderedza mari yekushandisa.

Dzimwe simbi dzesimbi dzinoshanda zvakanaka dziripowo kuti dzigutse zvinodiwa nemamiriro ekunze akasiyana-siyana ekupisa, kumanikidzwa, uye ngura.

20G(Simbi yeKabhoni)
Kunyangwe 20G isiri simbi yesimbi, chinhu chakakosha chakanyorwa muGB/T 5310-2017 sesimbi yemhando yepamusoro yecarbon structural, inonyanya kushandiswa muzvinhu zveboiler zvine tembiricha yakaderera zvakaita se economizers uye low-tembiricha superheaters. Zvakanakira zvayo zvinosanganisira mutengo wakaderera uye hunhu hwakanaka hwekugadzira nekuwedera. Yakakodzera mapombi eboiler ane pressure yepakati nepasi ane tembiricha yekushanda isingapfuure 450°C.
12Cr1MoVG
12Cr1MoVG isimbi yemhando ye chromium-molybdenum-vanadium ine simba repamusoro-soro uye inodzivirira kupisa kana tichienzanisa ne12CrMoG ne15CrMoG. Kuwedzerwa kwevanadium kunovandudza simba rechinhu ichi uye simba rekutsungirira, zvichiita kuti chirambe chichishanda zvakanaka munzvimbo dzinopisa zvakanyanya kwenguva refu. 12Cr1MoVG yakakodzera ma boiler superheaters ane pressure yakakwira, ma reheaters, uye main steam piping ane tembiricha iri pasi pe570°C.
25MnG(Simbi yeManganese Low Alloy)
25MnG isimbi isina alloy yakawanda ine manganese yakawanda, inopa simba rakawedzerwa uye kusimba kwayo zvichienzaniswa ne20G. Iine simba guru rekugadzira uye simba rekusunga uku ichiramba ichichinjika zvakanaka. 25MnG yakakodzera zvikamu zveboiler zvine tembiricha yepamusoro yekushanda, senge machubhu esuperheater uye mapaipi esteam mumaboiler ane pressure yepakati. Tembiricha yayo yekushanda kazhinji haipfuure 480°C. Kune zvikamu zveboiler zvine tembiricha yakaderera, 20G carbon steel inosarudzwa nekuda kwekushanda kwayo kwakaderera. Kana tembiricha dzasvika pa450°C, 25MnG isarudzo. Kune tembiricha dziri pakati pe450-500°C, 15MoG inokurudzirwa. Kune tembiricha dziri pakati pe500-530°C, 20MoG isarudzo yakakodzera. Aya magiredhi asina alloy uye asina alloy yakawanda, pamwe chete nesimbi ine alloy yakawanda, anogona kugadzirisa mitengo yekugadzira boiler uku achichengetedza mashandiro.