Silicon carbide (SiC) ọkụ nozzles

N'ime usoro okpomọkụ dị elu ebe nchịkwa mmiri, nkwụsị nke mbuze, na nkwụsi ike nke okpomọkụ dị oke mkpa.silicon carbide (SiC) nozzlespụta dị ka ihe ịtụnanya injinia. N'adịghị ka seramiiki jeneriki ma ọ bụ igwe nozzles, ihe pụrụ iche nke SiC na-eleba anya n'ihe ịma aka dị na combustion, mkpali, na sistemụ ịgbasa ụlọ ọrụ. Edemede a na-enyocha ihe kpatara ụlọ ọrụ na-ejiwanye SiC nozzles iji gbanwee arụmọrụ na ngwa kachasị achọ.

1. Ekepụtara maka gburugburu mmiri mmiri

SiC nozzles na-eme nke ọma n'ijikwa oke ọsọ, mmiri ọkụ na gas:

(1) Nguzogide nbibi: na-eguzogide ụmụ irighiri ihe na-emebi emebi na injectors coal slurry injectors, sistemu aja aja, ma ọ bụ ihe na-ebugharị rọketi na-enweghị nrụrụ na-akpata.

(2) Ịlanahụ Shock Thermal: Ịgba ọsọ ọsọ n'etiti oke okpomọkụ (dịka ọmụmaatụ mmanụ ọkụ n'ime ọkụ igwe) na-enweghị mgbawa, ekele maka mgbasawanye ọkụ dị ala nke SiC.

(3) Inertness kemịkalụ: guzogide corrosion sitere na sprays acidic/alkaline, salts a wụrụ awụ, ma ọ bụ ọkụ oxidizing, na-ahụ na geometry orifice na-agbanwe agbanwe.

2. Nhazi nhazi nkenke maka usoro dị oke egwu

N'ime ngwa na-achọ izi ezi nke ọkwa micron, SiC nozzles na-enye ntụkwasị obi enweghị atụ:

(1) Geometry Orifice kwụsiri ike: Jikwaa usoro ịgbasa nke ọma na ịgbasa usoro ọbụlagodi mgbe ogologo oge gachara na gburugburu 1500C+, n'adịghị ka ọla na-agba ma ọ bụ seramiki na-emebi emebi.

(2) Mkpuchi Mbelata: Imecha elu dị larịị na-ebelata ihe nrụpụta n'ime injectors mmanụ ma ọ bụ sistemu kemịkalụ.

(3) Nlegide Nrụgide Dị Elu: Nagide nrụgide hydraulic karịrị 500 MPa, dị mma maka igbutu mmiri jet ma ọ bụ ikuku ikuku.

3. Na-eme ka ọkụ ọkụ na-arụ ọrụ dị elu

SiC nozzles bụ ihe dị mkpa n'ịkwalite sistemu mgba ọkụ ọkụ:

(1) Nkwụsi ike ọkụ: Nhazi na-eguzogide okpomọkụ na-eme ka ngwakọta mmanụ-ikuku dị n'ime turbines gas ma ọ bụ ọkụ ụlọ ọrụ mmepụta ihe, na-ebelata ebe ọkụ na ikuku NOx.

(2) Mgbanwe mmanụ: Dakọtara na hydrogen, biofuels, ma ọ bụ mmanụ dị arọ, na-akwado mgbanwe gaa na isi mmalite ike.

(3) Ịrụ ọrụ nke ọma: belata okpomọkụ site na mgbidi n'ihi oke okpomọkụ nke SiC, na-eme ka ụlọ ọkụ ọkụ na-arụ ọrụ ruo 15%.

Shandong Zhongpeng Special Ceramics Co., Ltd bụ otu n'ime nnukwu silicon carbide seramiiki ihe ngwọta ọhụrụ na China. SiC technical ceramic: Moh's hardness is 9 (New Moh's hardness is 13), na ezigbo nguzogide mbuze na corrosion, ọmarịcha abrasion - nguzogide na mgbochi oxidation. Ndụ ọrụ ngwaahịa SiC bụ 4 ruo 5 ugboro ogologo karịa 92% alumina ihe onwunwe. MOR nke RBSiC bụ 5 ruo 7 ugboro karịa nke SNBSC, enwere ike iji ya mee ihe maka ụdị mgbagwoju anya. Usoro nhota dị ngwa ngwa, nnyefe dị ka e kwere ná nkwa na àgwà bụ nke abụọ na ọ dịghị. Anyị na-anọgidesi ike mgbe niile n'ịgba ebumnobi anyị aka ma na-enyeghachi obi anyị azụ n'obodo.