20. 9. 2007

Archimedova skrutka

Jednym z prvych projektov bola archimedova skrutka.



Jeden popularno vedecky program pre deti (forscher expres, ORF) ma inspiroval pre Archimedove cerpadlo. V priebehu jari az leta 2006 som skonstruoval Archimedovu skrutku pohananu vodnym kolesom. Potreboval som dostat vodu do vysky 5 m a z toho mi vysla dlzka osi 9 m. Po postaveni provizornej priehrady pri nahone s prierezom 15x15 cm to vyborne fungovalo. Vzhladom na to ze potok je "za plotom" a chodim tam len cez weekendy spravil som to vsetko "mobilne" (viac-menej). Pri konstrukcii som sa sustredil hlavne na sroub a vodne koleso som spravil len tak ako ma napadlo. Koleso z pozinkovaneho plechu je rozoberatelne na dve casti, ma priemer 83 cm a sirku 15 cm a malo 16 listov. Povodne som to chcel prevadzkovat so spodnym nahonom ("hrebenac"), preto bolo koleso "sikme". Ale v sucasnosti je nahon mierne nad osou (zrejme niektora forma "korecnika").

Pri tohto rocnom suchu a provizornej hati som ale dosiahol prietok len asi 5x 15 cm, a koleso nie a nie sa plynule otacat ani po optimalizacii (z dvojnasobenie poctu lopatiek, a "vyrovnanie"), tak som to vzdal. (vodu som cerpal klasicky elektrickym cerpadlom zo studne) .

Uvedomil som si ze musim zdokonalit "priehradku"s nahonom, ale k tomu som sa zatial nedostal. Po precitani stranok pana Laika o malych vodnych elektrarnach, som si uvedomil, ze musim odbornejsie pristupit k navrhu hati, nahonu a kolesa. Spojil som sa emailom s panom Laikom a velmi ochotne mi navrhol upravu kolesa, ako aj nahonu. 

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