Chiyambi chachidule ndi ubwino wa turbine yoyenda ya axial

Pali mitundu yambiri ya majenereta amadzimadzi. Lero, tiyeni tifotokoze mwatsatanetsatane za jenereta yamadzimadzi ya axial-flow. Kugwiritsa ntchito jenereta yamadzimadzi ya axial-flow m'zaka zaposachedwa makamaka kukukula kwa madzi ambiri komanso kukula kwakukulu. Kupanga ma turbine amadzimadzi a axial-flow m'nyumba nakonso kuli mwachangu. Pali mitundu iwiri ya ma turbine a axial-flow paddle omwe aikidwa mu siteshoni yamagetsi ya Gezhouba yomangidwa, imodzi mwa izo ili ndi mainchesi 11.3m, yomwe ndi mainchesi 11.3m, yomwe ndi mainchesi 10 ofanana padziko lonse lapansi. Nazi zabwino ndi zoyipa za turbine yamadzimadzi yapakati.

Ubwino wa turbine yoyenda ndi axial
Poyerekeza ndi turbine ya Francis, turbine ya axial-flow ili ndi ubwino waukulu uwu:
1. Liwiro lapadera komanso mphamvu zabwino. Chifukwa chake, liwiro la unit yake ndi kuyenda kwa unit ndi zokwera kuposa za Francis turbine. Pansi pa mikhalidwe yomweyi ya mutu ndi kutulutsa, imatha kuchepetsa kwambiri kukula kwa unit ya hydraulic turbine, kuchepetsa kulemera kwa unit ndikusunga kugwiritsa ntchito zinthu, kotero imakhala ndi phindu lalikulu pazachuma.
2. Kapangidwe ka pamwamba ndi kuuma kwa pamwamba kwa masamba othamanga a turbine ya axial-flow n'kosavuta kukwaniritsa zofunikira popanga. Chifukwa masamba a turbine ya axial flow propeller amatha kuzungulira, magwiridwe antchito apakati amakhala apamwamba kuposa a turbine ya Francis. Pamene katundu ndi mutu zisintha, magwiridwe antchito sasintha kwenikweni.
3. Masamba othamanga a turbine ya axial flow paddle amatha kuchotsedwa kuti apange mosavuta komanso kuti azitha kunyamula.

Chifukwa chake, turbine ya axial-flow imakhala yokhazikika pamlingo waukulu wogwirira ntchito, imakhala ndi kugwedezeka kochepa, komanso imagwira ntchito bwino komanso kutulutsa mphamvu. Pamtundu wa mutu wamadzi wotsika, imalowa m'malo mwa turbine ya Francis. M'zaka zaposachedwa, yapanga chitukuko chachikulu komanso kugwiritsidwa ntchito kwambiri pankhani ya mphamvu ya unit imodzi komanso mutu wamadzi.

3, Zoyipa za turbine yoyenda ya axial
Komabe, turbine ya axial-flow ilinso ndi zovuta zake ndipo imachepetsa kuchuluka kwa momwe imagwiritsidwira ntchito. Zoyipa zake zazikulu ndi izi:
1. Chiwerengero cha masamba ndi chaching'ono komanso cholimba, kotero mphamvu yake ndi yochepa ndipo singagwiritsidwe ntchito pa malo opangira magetsi apakati ndi apamwamba.
2. Chifukwa cha kuyenda kwa unit yayikulu komanso liwiro lalikulu la unit, ili ndi kutalika kochepa koyamwa kuposa Francis turbine pansi pa mutu womwewo wa madzi, zomwe zimapangitsa kuti kufukula kukhale kwakukulu komanso kuyika ndalama zambiri pa maziko a siteshoni yamagetsi.

Malinga ndi zofooka zomwe zili pamwambapa za turbine ya axial-flow, mutu wogwiritsira ntchito wa turbine ya axial-flow umasinthidwa nthawi zonse mwa kugwiritsa ntchito zipangizo zatsopano zolimba kwambiri komanso zolimbana ndi cavitation popanga turbine ndikukweza mkhalidwe wa kupsinjika kwa masamba omwe akupangidwa. Pakadali pano, mtundu wa mutu wogwiritsira ntchito wa turbine ya axial flow propeller ndi 3-90 m, womwe walowa m'dera la turbine ya Francis. Mwachitsanzo, kutulutsa kwa makina amodzi a turbine ya axial flow propeller yakunja ndi 181700 kW, mutu wa * * * ndi 88m, ndipo m'mimba mwake ndi 10.3M. Kutulutsa kamodzi kwa turbine ya axial flow propeller yomwe imapangidwa ku China ndi 175000 kW, mutu wa * * * ndi 78m, ndipo m'mimba mwake ndi 11.3m. Turbine ya axial flow fixed propeller ili ndi masamba okhazikika komanso kapangidwe kosavuta, koma singathe kusintha malo opangira magetsi ndi kusintha kwakukulu kwa mutu wamadzi ndi katundu. Pa malo akuluakulu opangira magetsi amadzi okhala ndi mutu wamadzi wokhazikika komanso wogwiritsidwa ntchito ngati katundu woyambira kapena mayunitsi angapo, ingathenso kuganiziridwa pambuyo poyerekeza zachuma pamene mphamvu zamagetsi zanyengo zili zambiri. Kutalika kwa mutu wamadzi komwe kumagwiritsidwa ntchito ndi 3-50m. Turbine yoyendera madzi ya axial nthawi zambiri imagwiritsa ntchito chipangizo choyimirira, ndipo njira yake yogwirira ntchito imakhala yofanana ndi ya turbine ya Francis. Kusiyana kwake ndikuti katundu akasintha, sikuti amangoyendetsa kuzungulira kwa vane yotsogolera, komanso amawongolera kuzungulira kwa tsamba lothamanga kuti likhale logwira ntchito bwino.

Tinayambitsanso turbine ya Francis kale. Pakati pa ma hydro generators, turbine ya Francis ndi yosiyana kwambiri ndi turbine ya axial-flow. Mwachitsanzo, mawonekedwe a runner yawo ndi osiyana. Masamba a turbine ya Francis ali pafupi kufanana ndi shaft yayikulu, pomwe a axial flow turbine ali pafupifupi olunjika ku shaft yayikulu.