Pombi yesimbi isina musonoASTM A335 P11isimbi yakagadzirwa ne chromium-molybdenum alloy, uye zita rayo rekuChina rinoenderana naro nderinoti15CrMoGChinhu ichi chine simba rakanaka kwazvo pakupisa kwakanyanya uye kuramba kukambaira, uye chakakodzera mamiriro ekushanda anopisa zvakanyanya uye ane kumanikidzwa kwakanyanya. Chinoshandiswa zvakanyanya mumaindasitiri akadai sesimba nemagetsi, uye petrochemicals.
Panyaya yemakemikari, chinhu cheP11 chine chromium inosvika 1.00% - 1.50% uye molybdenum inosvika 0.44% - 0.65%. Musanganiswa uyu we alloy unoigonesa kuchengetedza hunhu hwakasimba hwemakanika mumamiriro ekupisa kwakanyanya. Chinhu chechromium chinobatsira kuumba dense oxide layer, zvichiwedzera kudzivirira kwechinhu ichi kuoxidation uye ngura, nepo chinhu chemolybdenum chichivandudza zvakanyanya simba rechinhu ichi pakupisa kwakanyanya uye kuramba kukambaira.
Muindasitiri yesimba nemagetsi, mapaipi esimbi asina musono eASTM A335 P11 anonyanya kushandiswa mumapaipi anodziya zvakanyanya uye ane simba repamusoro emagetsi anodziya. Anowanzo shandiswa kugadzira zvinhu zvakakosha zvakaita semaboiler superheaters, mareheaters, uye mapaipi makuru emhepo inodziya. Zvinhu izvi zvinowanzo fanira kushanda zvakavimbika kwenguva yakareba munzvimbo inodziya zvakanyanya kubva pa540°C kusvika 570°C. Chinhu ichi chinogona kutsungirira kumanikidzwa kwakanyanya kwemukati uye kudzivirira ngura ye oxidation kubva kumhepo inodziya zvakanyanya, zvichiita kuti magetsi ashande zvakachengeteka uye zvakagadzikana.
Muindasitiri yemafuta, mapaipi esimbi eP11 anoshandiswa zvakanyanya mumidziyo yakasiyana-siyana inodziya zvakanyanya. Anowanzo shandiswa kugadzira machubhu emoto anopwanyika, machubhu emoto anochinja, uye masisitimu emapaipi ekugadzira hydrogenation, pakati pezvimwe. Mapaipi aya anofanira kutsungirira mhedzisiro yehydrocarbon media inodziya zvakanyanya. Simba rakanaka remoto unodziya zvakanyanya uye kuramba ngura kwezvinhu zvinoita kuti zvikwanise kuchinjika nemamiriro ezvinhu anorema ekugadzirwa kwemafuta, zvichiita kuti michina ishande zvakanaka kwenguva refu.
Muindasitiri yesimba renyukireya, mapaipi esimbi eP11 anonyanya kushandiswa mumapaipi ekubatsira. Kunyangwe mapaipi emhando yenyukireya achiwanzoshandisa zvinhu zvepamusoro-soro, P11 ichiri kushandiswa mumasisitimu ekubatsira asiri emhando yenyukireya, akadai semasisitimu ekuchinjana kupisa uye masisitimu ekupa mvura, zvichipa rutsigiro rwekushanda kwakavimbika kwezviteshi zvesimba renyukireya.
Panguva yekugadzirisa nekugadzira zvinhu izvi, kutarisisa kwakakosha kunofanirwa kupihwa pakuita kwewelding. Usati waisa welding, kupisa kwe 200-250°C kunodiwa. Ma electrodes emhando ye hydrogen shoma anofanira kushandiswa, uye kurapwa kwekupisa nekukurumidza pa 680-720°C kunodiwa mushure mekuisa welding. Matanho aya anogona kubvisa kushushikana kwewelding, kuvandudza chimiro cheweld, uye kudzivirira kuumbwa kwechando. Panguva yekuisa pombi, rutsigiro rwakakodzera uye magadzirirwo ehanger zvinodiwa kuti ive nechokwadi chekuti system yepombi inogona kuwedzera zvakasununguka uye kudzivirira kugadzirwa kwekuwedzera kushushikana kwekupisa.
Nekukura kweindasitiri yesimba, kudiwa kwemapaipi anodziya zvakanyanya uye ane simba repamusoro kuri kuramba kuchiwedzera. ASTM A335 P11, sepombi inodziya zvakanyanya uye yakavimbika, icharamba ichiita basa rakakosha mukuchengetedza nekugadzirisa michina iripo. Nekuvandudza dhizaini yekugadzira uye maitiro ekugadzira, mashandiro echinhu ichi achawedzerwa, zvichipa rutsigiro rwakanaka rwezvinhu zvekusimudzira minda yakasiyana-siyana yemaindasitiri.
Mapaipi esimbi eASTM A335 P11 asina musono, nekuda kwekushanda kwawo kwakanaka uye mutengo usingadhuri, anoramba achikosha zvakanyanya muminda yesimba nemakemikari. Kuti usarudze nekushandisa chinhu ichi nemazvo, kunzwisisa kwakakwana uye kunzwisisa hunhu hwacho hwekushanda uye zvinodiwa pakushandisa zvinodiwa.