E nwere ọtụtụ ụdị jenerato eletrik hydroelectric. Taa, m ga-ewebata ndị na-enye jenerato hydroelectric hydroelectric nke axial flow n'ụzọ zuru ezu. Ojiji nke jenerato turbine axial flow n'afọ ndị na-adịbeghị anya bụ mmepe nke isi dị elu na nnukwu nha. Turbines axial-flow n'ime ụlọ na-etolite ngwa ngwa. E wuru turbines abụọ axial-flow-paddle arụnyere na Gezhouba Hydropower Station. Otu n'ime ha nwere dayameta nke mita 11.3, nke bụ ugbu a kachasị ukwuu n'ụdị ya n'ụwa. Lee uru na ọghọm nke turbines axial flow.
Uru nke turbine axial flow
Ma e jiri ya tụnyere turbines Francis, turbines axial flow nwere uru ndị a:
1. Ọsọ dị elu na njirimara ike dị mma. Ya mere, ọsọ nkeji ya na mmiri ya dị elu karịa nke Francis turbine. N'okpuru otu isi mmiri na ọnọdụ mmepụta, ọ nwere ike ibelata nha nke igwe jenerato turbine nke ukwuu, belata ibu nke unit ahụ, ma chekwaa oriri ihe, yabụ ọ dị ọnụ ala.
2. Ọdịdị elu na oke iru ala nke agụba ọsọ nke turbine axial flow nwere ike imezu ihe achọrọ n'ọrụ mmepụta ngwa ngwa. N'ihi na agụba nke turbine axial-flow rotary-paddle nwere ike ịtụgharị, arụmọrụ nkezi dị elu karịa nke turbine ngwakọta-flow. Mgbe ibu na isi mmiri gbanwere, arụmọrụ anaghị agbanwe nke ukwuu.
3. Enwere ike ịgbasa agụba ndị na-agba ọsọ nke turbine paddle axial-flow, nke dị mma maka mmepụta na ibugharị.
Ya mere, turbine axial flow nwere ike idobe nkwụsi ike n'ọtụtụ ọrụ, na-enweghị mkpọtụ dị ukwuu, yana arụmọrụ na mmepụta dị elu. N'ime oke isi dị ala, ọ fọrọ nke nta ka ọ dochie turbine Francis. N'ime iri afọ ndị na-adịbeghị anya, ma n'ihe gbasara ikike otu unit na ojiji nke isi mmiri, enwere nnukwu mmepe, ojiji ya dịkwa oke obosara.
Ọghọm nke turbine mmiri axial
Agbanyeghị, turbine axial flow turbine nwekwara adịghị ike ma na-ebelata oke ojiji ya. Ihe ndị bụ isi adịghị ike bụ:
1. Ọnụọgụ agụba dị obere, ọ bụkwa cantilever, yabụ ike adịghị mma, a pụghịkwa iji ya mee ihe n'ọdụ ọkụ eletrik dị n'etiti na n'elu.
2. N'ihi nnukwu ọsọ nke unit na ọsọ unit dị elu, ọ nwere obere ogologo ịmịpụta ihe karịa Francis turbine n'okpuru otu isi ahụ, nke na-eme ka e nwee nnukwu omimi igwu ala maka ntọala nke ọdụ ike ahụ ma tinye ego dị elu.
Dịka ihe ndị a kpọtụrụ aha n'elu nke turbines mmiri axial si dị, a na-eji ihe ọhụrụ ndị na-egbochi cavitation dị elu eme ihe n'ịmepụta turbines ma na-eme ka ike nke agụba dịkwuo mma n'ime imewe ahụ, nke mere na isi ngwa nke turbines mmiri axial na-akawanye mma mgbe niile. Ugbu a, isi ngwa nke turbines mmiri axial dị site na mita 3 ruo 90, ọ banyekwala na mpaghara turbines mmiri Francis. Dịka ọmụmaatụ, mmepụta kachasị otu nkeji nke turbines mmiri axial na-akakarị bụ 181,700 kW, isi mmiri kachasị bụ mita 88, na dayameta ọsọ bụ mita 10.3. Mmepụta kachasị otu igwe nke turbines mmiri axial na-akakarị nke a na-emepụta na mba m bụ 175,000 kW, isi mmiri kachasị bụ mita 78, na dayameta ọsọ kachasị bụ mita 11.3. Turbines mmiri axial na-akakarị nwere agụba edobere na nhazi dị mfe, mana ọ nweghị ike ịgbanwe na ọdụ ike mmiri nwere nnukwu mgbanwe na isi mmiri na ibu. O nwere isi mmiri kwụsiri ike ma na-eje ozi dị ka ibu isi ma ọ bụ ebe ọkụ eletrik buru ibu nke nwere ọtụtụ unit. Mgbe ike oge dị ukwuu, ntụnyere akụ na ụba nwekwara ike ịdị. Enwere ike ịtụle ya. Oke isi ya dị mkpa bụ 3-50m. Turbines paddle axial-flow na-ejikarị ngwaọrụ kwụ ọtọ. Usoro ọrụ ya bụ otu ihe ahụ dị ka nke turbines Francis. Ihe dị iche bụ na mgbe ibu ahụ gbanwere, ọ bụghị naanị na ọ na-achịkwa ntụgharị nke vanes nduzi. , Ọ na-agbanwekwa ntụgharị nke agụba ndị na-agba ọsọ iji nọgide na-arụ ọrụ nke ọma.
Tupu mgbe ahụ, anyị webatara turbines Francis. N'ime ihe ndị na-emepụta turbine, e nwere nnukwu ọdịiche dị n'etiti turbines Francis na turbines axial flow. Dịka ọmụmaatụ, nhazi nke ndị na-agba ọsọ ha dị iche. Agụba nke turbines Francis fọrọ nke nta ka ọ bụrụ ihe yiri isi shaft, ebe turbines axial flow fọrọ nke nta ka ọ bụrụ ihe kwụ ọtọ na isi shaft.
Oge ozi: Nọvemba-11-2021
