Enwere ọtụtụ ụdị ndị na-emepụta mmiri.Taa, ka anyị webata axial-flow hydro generator n'ụzọ zuru ezu.Ngwa nke axial-flow hydro generator na-adịbeghị anya bụ tumadi mmepe nke isi mmiri dị elu na nnukwu nha.Mmepe nke turbines axial-flow nke ụlọ dịkwa ngwa ngwa.Enwere ụdị turbines abụọ nke axial-flow paddle nke arụnyere n'ọdụ ụgbọ mmiri Gezhouba wuru, otu n'ime ha nwere dayameta nke ndị na-agba ọsọ nke 11.3m, nke bụ dayameta onye na-agba ọsọ nke turbines yiri ya n'ụwa.Nke a bụ uru na ọghọm dị n'etiti turbine axial eruba.
Uru nke turbine axial eruba
N'iji ya na turbine Francis, turbine axial-flow nwere uru ndị a bụ isi:
1. Ọsọ ọsọ dị elu na njirimara ike dị mma.Ya mere, ọsọ otu ya na ọsọ otu ya dị elu karịa nke turbine Francis.N'okpuru otu isi na ọnọdụ mmepụta, ọ nwere ike belata oke nke hydraulic turbine generator unit, belata ịdị arọ nke unit ma chekwaa ihe oriri, ya mere ọ nwere nnukwu uru akụ na ụba.
2. Ọdịdị elu na ọdịdị elu nke ndị na-agba ọsọ nke turbine axial-flow dị mfe iji mezuo ihe ndị a chọrọ n'ichepụta.N'ihi na agụba nke axial flow propeller turbine nwere ike ịtụgharị, nkezi arụmọrụ dị elu karịa nke turbine Francis.Mgbe ibu na isi gbanwere, arụmọrụ na-agbanwe ntakịrị.
3. Enwere ike ịkwasa eriri na-agba ọsọ nke axial flow paddle turbine iji kwado mmepụta na njem.
Ya mere, turbine axial-flow na-akwụsi ike n'ọtụtụ ọrụ dị ukwuu, na-enwe obere mkpọtụ, ma nwee nnukwu arụmọrụ na mmepụta.Na nso nke isi mmiri dị ala, ọ fọrọ nke nta ka ọ dochie anya turbine Francis.N'ime iri afọ ndị na-adịbeghị anya, o meela nnukwu mmepe na ngwa ngwa n'ihe gbasara otu ikike na isi mmiri.
3. Mwepu nke axial eruba turbine
Otú ọ dị, turbine axial-flow nwekwara adịghị ike ma na-amachi oke ngwa ya.Isi ọghọm ya bụ:
1. Ọnụ ọgụgụ nke agụba dị obere na cantilever, ya mere ike adịghị mma na enweghị ike itinye ya na ọdụ ụgbọ mmiri na-ajụ na elu.
2. N'ihi na nnukwu unit eruba na elu unit ọsọ, o nwere a nta suction elu karịa Francis turbine n'okpuru otu mmiri isi, pụta na nnukwu gwupụtara omimi omimi na dịtụ elu ego nke ike ọdụ ntọala.
Dị ka adịghị ike ndị dị n'elu nke axial-flow turbine, isi ngwa nke axial-flow turbine na-aga n'ihu na-emewanyewanye site n'inwe ihe ọhụrụ na ike dị elu na cavitation na-eguzogide n'ichepụta turbine na imeziwanye ọnọdụ nrụgide nke agụba na imewe.Ka ọ dị ugbu a, isi ngwa ngwa nke axial flow propeller turbine bụ 3-90 m, nke batara na mpaghara ụgbọ mmiri Francis.Dị ka ihe atụ, mmepụta nke * * * otu igwe nke mba ọzọ axial eruba propeller turbine bụ 181700 kW, na * * * isi bụ 88m, na onye na-agba ọsọ dayameta bụ 10.3M.Otu mmepụta nke axial flow propeller turbine emepụtara na China bụ 175000 kW, isi * * * bụ 78m, dayameta nke * * * onye na-agba ọsọ bụ 11.3m.Turbine axial na-agba ọsọ na-arụ ọrụ nwere oghere na nhazi dị mfe, mana ọ nweghị ike ime mgbanwe na ọdụ ụgbọ mmiri nwere nnukwu mgbanwe na isi mmiri na ibu.Maka nnukwu ọdụ ụgbọ mmiri nke nwere isi mmiri kwụsiri ike ma na-eje ozi dị ka ibu isi ma ọ bụ ọtụtụ nkeji, enwere ike ịtụle ya ma e jiri ya tụnyere akụ na ụba mgbe ike eletrik n'oge dị ukwuu.Ogologo isi mmiri ya dị na ya bụ 3-50m.Axial flow propeller turbine n'ozuzu na-anakwere ngwaọrụ kwụ ọtọ, na usoro ọrụ ya bụ isi na nke Francis turbine, Ihe dị iche bụ na mgbe ibu ahụ gbanwere, ọ bụghị naanị na ọ na-achịkwa ntụgharị nke vane ndu, ma na-achịkwa ntụgharị nke ụgbọ mmiri. agụba na-agba ọsọ iji nọgide na-arụ ọrụ dị elu.
Anyị kpọbakwara ụgbọ mmiri Francis na mbụ.N'ime ndị na-emepụta mmiri mmiri, ụgbọ mmiri Francis dị nnọọ iche na turbine axial-flow.Dịka ọmụmaatụ, ụdị nhazi nke onye na-agba ọsọ ha dị iche iche.Oghere nke turbine Francis fọrọ nke nta ka ọ dakọtara na ogwe isi, ebe ndị nke axial flow turbine fọrọ nke nta ka ọ daa n'akụkụ isi.
Oge nzipu: Eprel-19-2022
