Silicon carbide (SiC) Burner nozzles
Lits'ebetsong tsa mocheso o phahameng moo taolo ea mokelikeli, ho hanyetsa khoholeho le botsitso ba mocheso li leng bohlokoa haholo,silicon carbide (SiC) nozzleshlahella e le mohlolo oa boenjiniere. Ho fapana le li-nozzles tse tloaelehileng tsa ceramic kapa tšepe, thepa e ikhethang ea SiC e sebetsana le mathata a ho chesa mollo, ho potlakisa le ho fafatsa liindasteri. Sengoliloeng sena se hlahloba hore na ke hobaneng ha liindasteri li ntse li sebelisa li-nozzle tsa SiC ho ntlafatsa ts'ebetso lits'ebetsong tse batloang haholo.
1. E Enjenetsoe Bakeng sa Tikoloho ea Mokelikeli o Feteletseng
Li-nozzles tsa SiC li sebetsa hantle ho laola lebelo le phahameng, maro a mocheso o phahameng le likhase:
(1) Khanyetso ea khoholeho ea mobu: E mamella likaroloana tse khopameng ka har'a li-injection tsa mashala a slurry, lisebelisoa tsa sandblasting, kapa li-rocket propellants ntle le ho senyeha ho bakoang ke ho senyeha.
(2) Ho Pholoha ha Thermal Shock: Potoloho e potlakileng lipakeng tsa mocheso o feteletseng (mohlala, ente ea mafura liboping tsa metallurgical) ntle le ho phatloha, ka lebaka la katoloso e tlase ea mocheso oa SiC.
(3) Ho se sebetse ha Lik'hemik'hale: Hanela kutu ho tsoa ho li-sprays tse nang le asiti / alkaline, matsoai a qhibilihisitsoeng, kapa malakabe a oxidizing, ho netefatsa geometry ea orifice e tsitsitseng.
2. Taolo e nepahetseng ea Phallo bakeng sa Mekhoa e Bohlokoa
Likopong tse batlang ho nepahala ha boemo ba micron, li-nozzles tsa SiC li fana ka ts'epo e ke keng ea lekanngoa:
(1) Geometry e tsitsitseng ea Orifice: Boloka litekanyetso tse nepahetseng tsa phallo le mekhoa ea ho fafatsa esita le ka mor'a ho pepesehela nako e telele ho 1500 ° C+, ho fapana le lirafshoa tse sothehang kapa lirafshoa tse senyehang.
(2) Ho Koaheloa ho Fokotseng: Qetello ea bokaholimo bo boreleli e fokotsa ho bokellana ha thepa ka lienteng tsa mafura kapa lisebelisoa tsa ho fafatsa ka lik'hemik'hale.
(3) Mamello e Phahameng ea Khatello: Mamella likhatello tsa hydraulic tse fetang 500 MPa, tse loketseng bakeng sa ho itšeha ha metsi kapa ho tsamaisoa ha sefofane.
3. Ho nolofaletsa ho Chesa ka Matla a Phahameng
Li-nozzles tsa SiC li bohlokoa ho ntlafatseng lits'ebetso tse tukang tse sebelisang matla a matla:
(1) Botsitso ba Lelakabe: Moralo o sa cheseheng mocheso o tiisa ho tsoakana ha mafura-moea ka har'a li-turbine tsa khase kapa li-burners tsa indasteri, ho fokotsa libaka tse chesang le ho tsoa ha NOx.
(2) Fuel Flexibility: E lumellana le hydrogen, biofuel, kapa oli e boima, e tšehetsang phetoho ho mehloli ea matla e tsitsitseng.
(3) Tšebeliso ea Mocheso: Fokotsa tahlehelo ea mocheso ka marako ka lebaka la tsamaiso e phahameng ea mocheso oa SiC, ho ntlafatsa katleho ea kamore ea mollo ka 15%.
Shandong Zhongpeng Special Ceramics Co., Ltd ke e 'ngoe ea litharollo tse ncha tsa silicon carbide ceramic China. SiC tekheniki ea ceramic: Ho thatafala ha Moh ke 9 (Bothata ba Moh e Ncha ke 13), e nang le khanyetso e babatsehang ea khoholeho ea mobu le ho bola, ho senya ho hoholo - ho hanyetsa le ho thibela oxidation. Bophelo ba tšebeletso ea sehlahisoa sa SiC bo bolelele ba makhetlo a 4 ho isa ho a 5 ho feta 92% ea lisebelisoa tsa alumina. MOR ea RBSiC ke 5 ho linako tse 7 tsa SNBSC, e ka sebelisoa bakeng sa libopeho tse rarahaneng haholoanyane. Ts'ebetso ea quotation e potlakile, thomello e joalo ka ha e ts'episitsoe 'me boleng ha bo na letho. Re lula re phehella ho phephetsa lipakane tsa rona le ho khutlisetsa lipelo tsa rona sechabeng.
