{"id":5708,"date":"2026-06-11T15:07:04","date_gmt":"2026-06-11T15:07:04","guid":{"rendered":"https:\/\/www.wundertricks.com\/?p=5708"},"modified":"2026-06-11T15:07:04","modified_gmt":"2026-06-11T15:07:04","slug":"archimedova-skrutka-jednoduchy-sposob-ako-ziskat-vodu-bez-elektriny-na-zavlazovanie-a-odvodnovanie","status":"publish","type":"post","link":"https:\/\/www.wundertricks.com\/?p=5708","title":{"rendered":"Archimedova skrutka: Jednoduch\u00fd sp\u00f4sob, ako z\u00edska\u0165 vodu bez elektriny na zavla\u017eovanie a odvod\u0148ovanie"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Archimedova skrutka: Geni\u00e1lne \u010derpadlo na vodu bez elektriny, ktor\u00e9 zachr\u00e1ni va\u0161u \u00farodu<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vypadla dod\u00e1vka elektrick\u00e9ho pr\u00fadu, stud\u0148a sa nach\u00e1dza v spodnej \u010dasti pozemku a vyv\u00fd\u0161en\u00e9 z\u00e1hradn\u00e9 hriadky u\u017e vidite\u013ene praskaj\u00fa od sucha? Alebo m\u00e1te zatopen\u00fa pivnicu a susedovo motorov\u00e9 \u010derpadlo je pr\u00e1ve obsaden\u00e9? Toto s\u00fa situ\u00e1cie, ktor\u00e9 d\u00f4verne pozn\u00e1 nejeden chat\u00e1r \u010di z\u00e1hradk\u00e1r. Pre podobn\u00e9 kr\u00edzov\u00e9 momenty vymysleli geni\u00e1lne rie\u0161enie u\u017e pred pribli\u017ene 2300 rokmi \u2013 a odvtedy \u013eudstvo v podstate nevyna\u0161lo ni\u010d jednoduch\u0161ie, spo\u013eahlivej\u0161ie a efekt\u00edvnej\u0161ie. Re\u010d je o mechanizme zvanom Archimedova skrutka. Ide o zariadenie s jedinou pohyblivou \u010das\u0165ou, ktor\u00e9 dok\u00e1\u017ee spo\u013eahlivo dv\u00edha\u0165 vodu nahor len v\u010faka oby\u010dajn\u00e9mu mechanick\u00e9mu ot\u00e1\u010daniu. Dnes tieto syst\u00e9my \u00faplne bez elektriny funguj\u00fa v kanaliza\u010dn\u00fdch sie\u0165ach v Lond\u00fdne, na n\u00f3rskych ryb\u00edch farm\u00e1ch a rovnako dobre posl\u00fa\u017eia aj na slovensk\u00fdch z\u00e1hrad\u00e1ch. Pozrime sa, ako toto \u010derpadlo funguje, ko\u013eko vody re\u00e1lne pre\u010derp\u00e1 a \u010di sa d\u00e1 posklada\u0165 z dostupn\u00fdch materi\u00e1lov za jedin\u00fd v\u00edkend.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ako funguje Archimedovo \u010derpadlo: Dv\u00edhanie vody bez motora<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tento revolu\u010dn\u00fd mechanizmus navrhol legend\u00e1rny u\u010denec Archimedes okolo roku 250 pred n. l., pri\u010dom prim\u00e1rne sl\u00fa\u017eil na zavla\u017eovanie po\u013enohospod\u00e1rskych pol\u00ed a odvod\u0148ovanie mo\u010dar\u00edsk. Kon\u0161trukcia je a\u017e prekvapivo primit\u00edvna. Predstavte si pevn\u00fa r\u00faru, ktor\u00e1 je umiestnen\u00e1 pod sklonom 25 a\u017e 35 stup\u0148ov vo\u010di zemi. Vn\u00fatri nej (alebo vonku, ak ide o otvoren\u00fd variant) sa nach\u00e1dza \u0161pir\u00e1la pripom\u00ednaj\u00faca obrovsk\u00fd z\u00e1vit. Spodn\u00fd koniec kon\u0161trukcie je ponoren\u00fd priamo vo vodnom zdroji, zatia\u013e \u010do horn\u00fd smeruje do zbern\u00e9ho suda \u010di zavla\u017eovacieho kan\u00e1la. Akon\u00e1hle za\u010dnete hriade\u013eom ot\u00e1\u010da\u0165, kvapalina za\u010dne st\u00fapa\u0165 nahor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Princ\u00edp \u010dinnosti je element\u00e1rny: pri ka\u017edej ot\u00e1\u010dke spodn\u00fd z\u00e1vit \u0161pir\u00e1ly naberie ur\u010dit\u00fa porciu vody. Ako sa hriade\u013e ot\u00e1\u010da, t\u00e1to porcia zostane uzavret\u00e1 medzi jednotliv\u00fdmi z\u00e1vitmi a postupne sa pos\u00fava smerom k horn\u00e9mu v\u00fdtoku. Samotn\u00e1 voda sa neto\u010d\u00ed spolu so skrutkou \u2013 prirodzene sa sna\u017e\u00ed dr\u017ea\u0165 na najni\u017e\u0161om bode vn\u00fatri ka\u017edej vzniknutej komory. A tento najni\u017e\u0161\u00ed bod sa rot\u00e1ciou pos\u00fava vy\u0161\u0161ie. Je tu v\u0161ak d\u00f4le\u017eit\u00e1 in\u017einierska podmienka: medzi jednotliv\u00fdmi porciami vody mus\u00ed bezpodmiene\u010dne zosta\u0165 vzduch. Ak by sa skrutka zaplavila cel\u00e1, pohyb by sa zastavil. Pr\u00e1ve vzduchov\u00e9 bubliny vytv\u00e1raj\u00fa potrebn\u00fd \u0165ah, v\u010faka \u010domu \u010derpadlo excelentne zvl\u00e1da aj silne zne\u010disten\u00fa vodu s obsahom kalu, l\u00edstia \u010di vetvi\u010diek, kde by be\u017en\u00e9 odstrediv\u00e9 \u010derpadlo okam\u017eite zlyhalo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>V\u00fdpo\u010dty v\u00fdkonu: Ko\u013eko vody re\u00e1lne pre\u010derp\u00e1te?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00da\u010dinnos\u0165 tohto mechanick\u00e9ho \u010derpadla priamo z\u00e1vis\u00ed od troch hlavn\u00fdch faktorov: od priemeru skrutky, r\u00fdchlosti ot\u00e1\u010dania a uhla sklonu. Pre v\u00fdpo\u010det objemov\u00e9ho prietoku pou\u017e\u00edvaj\u00fa in\u017einieri nasleduj\u00faci matematick\u00fd vz\u0165ah:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">$$Q = \\frac{\\pi \\cdot (D^2 &#8211; d^2)}{4} \\cdot S \\cdot N \\cdot \\eta$$<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kde $D$ predstavuje vonkaj\u0161\u00ed priemer, $d$ je priemer centr\u00e1lneho hriade\u013ea, $S$ vyjadruje st\u00fapanie (krok) \u0161pir\u00e1ly, $N$ je po\u010det ot\u00e1\u010dok za sekundu a $\\eta$ predstavuje koeficient plnenia (ktor\u00fd sa \u0161tandardne pohybuje v rozmedz\u00ed 0,85 a\u017e 0,90). Nemus\u00edte sa v\u0161ak matematiky b\u00e1\u0165, v praxi v\u0161etko funguje ve\u013emi priamo\u010diaro. Ak pou\u017eijete be\u017en\u00fa plastov\u00fa PVC r\u00faru s priemerom 110 mm, naviniete na \u0148u flexibiln\u00fa hadicu s rovnak\u00fdm krokom 110 mm (\u010do je ide\u00e1lny pomer) a budete hriade\u013eom ot\u00e1\u010da\u0165 r\u00fdchlos\u0165ou pribli\u017ene 40 ot\u00e1\u010dok za min\u00fatu, z\u00edskate prietok okolo 35 a\u017e 40 litrov za min\u00fatu. To v prepo\u010dte znamen\u00e1 pribli\u017ene 2,1 kubick\u00e9ho metra vody za hodinu, \u010do na be\u017en\u00e9 zalievanie z\u00e1hrady bohate sta\u010d\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u010co sa t\u00fdka potrebnej fyzickej sily, na pre\u010derpanie 100 litrov vody za min\u00fatu do v\u00fd\u0161ky 2 metrov pri priemernej \u00fa\u010dinnosti 75 % spotrebujete v\u00fdkon zhruba 45 wattov. Pre porovnanie, dospel\u00fd \u010dlovek dok\u00e1\u017ee pri \u0161liapan\u00ed na bicykli stabilne generova\u0165 v\u00fdkon medzi 80 a\u017e 150 wattmi. Z toho vypl\u00fdva, \u017ee ped\u00e1lov\u00fd pohon pre dom\u00e1ce Archimedovo \u010derpadlo je absol\u00fatne re\u00e1lne, vysoko funk\u010dn\u00e9 a fyzicky nen\u00e1ro\u010dn\u00e9 rie\u0161enie.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Svojpomocn\u00e1 mont\u00e1\u017e: Ako si vyrobi\u0165 dom\u00e1ce \u010derpadlo za v\u00edkend<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Najjednoduch\u0161\u00ed sp\u00f4sob dom\u00e1cej v\u00fdroby vyu\u017e\u00edva met\u00f3du \u201ehadica na r\u00fare\u201c. Budete potrebova\u0165 klasick\u00fa plastov\u00fa kanaliza\u010dn\u00fa r\u00faru s priemerom 110 mm, ktor\u00e1 posl\u00fa\u017ei ako stredov\u00fd nosn\u00fd hriade\u013e. Na \u0148u si zaobstarajte transparentn\u00fa vinylov\u00fa hadicu s priemerom pribli\u017ene 20 mm. Prieh\u013eadn\u00fd materi\u00e1l nie je d\u00f4le\u017eit\u00fd kv\u00f4li dizajnu, ale z \u010disto praktick\u00e9ho d\u00f4vodu: presne uvid\u00edte, \u010di voda spr\u00e1vne st\u00fapa a \u010di ste pri mont\u00e1\u017ei dodr\u017eali rovnomern\u00e9 rozostupy.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hadica sa pevne a tesne navinie okolo PVC r\u00fary s pravideln\u00fdm krokom 110 mm a zafixuje sa pomocou plastov\u00fdch s\u0165ahovac\u00edch p\u00e1sok ka\u017ed\u00fdch 15 a\u017e 20 centimetrov. Spodn\u00fd koniec hadice mus\u00ed presahova\u0165 okraj nosnej r\u00fary o 10 a\u017e 15 centimetrov, preto\u017ee pr\u00e1ve t\u00e1to \u010das\u0165 sl\u00fa\u017ei ako naberacia z\u00f3na. Horn\u00fd koniec sa jednoducho vyvedie do zbernej n\u00e1doby. Cel\u00fa kon\u0161trukciu n\u00e1sledne upevnite pod uhlom 25 a\u017e 30 stup\u0148ov, ponorte spodok do jazierka, sudu \u010di zatopenej \u0161achty a za\u010dnite ot\u00e1\u010da\u0165 hriade\u013eom. Po nieko\u013ek\u00fdch oto\u010deniach za\u010dne z horn\u00e9ho konca vyteka\u0165 stabiln\u00fd pr\u00fad vody.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Preh\u013ead mo\u017enost\u00ed pohonu pre dom\u00e1ce Archimedovo \u010derpadlo:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Typ pohonu<\/strong><\/td><td><strong>N\u00e1ro\u010dnos\u0165 kon\u0161trukcie<\/strong><\/td><td><strong>Hlavn\u00e1 v\u00fdhoda v praxi<\/strong><\/td><\/tr><\/thead><tbody><tr><td>\u2022 <strong>Ru\u010dn\u00fd pohon (k\u013euka)<\/strong><\/td><td>Ve\u013emi n\u00edzka<\/td><td>Okam\u017eit\u00e1 pripravenos\u0165, ide\u00e1lne na kr\u00e1tke od\u010derp\u00e1vanie<\/td><\/tr><tr><td>\u2022 <strong>Ped\u00e1lov\u00fd pohon (bicykel)<\/strong><\/td><td>Stredn\u00e1<\/td><td>Vyu\u017e\u00edva silu n\u00f4h, pohodln\u00e9 a vysoko efekt\u00edvne<\/td><\/tr><tr><td>\u2022 <strong>Vetern\u00fd pohon (lopatky)<\/strong><\/td><td>Vy\u0161\u0161ia<\/td><td>Pracuje auton\u00f3mne bez pr\u00edtomnosti \u010dloveka po\u010das vetra<\/td><\/tr><tr><td>\u2022 <strong>Vodn\u00fd pohon (mlynsk\u00e9 koleso)<\/strong><\/td><td>Vy\u0161\u0161ia<\/td><td>Vyu\u017e\u00edva energiu potoka, nepretr\u017eit\u00e1 prev\u00e1dzka zadarmo<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Kon\u0161truk\u010dn\u00e9 limity a obmedzenia mechanizmu<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hoci m\u00e1 tento syst\u00e9m obrovsk\u00e9 mno\u017estvo v\u00fdhod, je potrebn\u00e9 po\u010d\u00edta\u0165 s ur\u010dit\u00fdmi fyzik\u00e1lnymi limitmi. Dv\u00edhanie vody do ve\u013ek\u00fdch v\u00fd\u0161ok nie je silnou str\u00e1nkou tohto zariadenia. Ak potrebujete prekona\u0165 v\u00fd\u0161ku nad 5 metrov, efektivita a prietok v\u00fdrazne klesaj\u00fa. Pokia\u013e by ste navy\u0161e sklon \u010derpadla zv\u00fd\u0161ili nad kritick\u00fdch 45 stup\u0148ov, kvapalina sa neudr\u017e\u00ed v z\u00e1vitoch hadice a vyte\u010die spodkom nasp\u00e4\u0165. Pre hlbok\u00e9 nar\u00e1\u017ean\u00e9 alebo v\u0155tan\u00e9 studne s h\u013abkou 10 a\u017e 20 metrov sa preto tento mechanizmus v\u00f4bec nehod\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pozor si treba da\u0165 aj na takzvan\u00fd sp\u00e4tn\u00fd chod. Ak po\u010das \u010derpania prudko zastav\u00edte ot\u00e1\u010danie, v\u00e1ha vodn\u00e9ho st\u013apca vn\u00fatri hadice za\u010dne klesa\u0165 nadol a rozto\u010d\u00ed cel\u00fd hriade\u013e ve\u013ekou r\u00fdchlos\u0165ou do protismeru. Pri dom\u00e1com plastovom modeli to sp\u00f4sob\u00ed len o\u0161priechanie vodou, no pri mas\u00edvnych kovov\u00fdch in\u0161tal\u00e1ci\u00e1ch by mohlo d\u00f4js\u0165 k po\u0161kodeniu prevodov. V dom\u00e1cich podmienkach preto sta\u010d\u00ed ot\u00e1\u010danie zastavova\u0165 plynule. Taktie\u017e netreba zab\u00fada\u0165 na zimn\u00fa \u00fadr\u017ebu. Pred pr\u00edchodom prv\u00fdch mrazov sa mus\u00ed v\u0161etka voda zo syst\u00e9mu d\u00f4kladne odstr\u00e1ni\u0165, inak by zamrznut\u00fd \u013ead hadicu roztrhol. Vypr\u00e1zdnenie vykon\u00e1te jednoducho tak, \u017ee hriade\u013eom pokr\u00fati\u0161 nieko\u013ekokr\u00e1t do opa\u010dnej strany.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Porovnanie s in\u00fdmi alternat\u00edvnymi \u010derpadlami bez motora<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Archimedova skrutka m\u00e1 v kateg\u00f3rii bezmotorov\u00fdch \u010derpadiel troch hlavn\u00fdch konkurentov, no v mnoh\u00fdch smeroch ich prekon\u00e1va. Napr\u00edklad zn\u00e1my hydraulick\u00fd baran vyu\u017e\u00edva energiu vodn\u00e9ho r\u00e1zu a dok\u00e1\u017ee vytla\u010di\u0165 vodu do v\u00fd\u0161ky 30 a\u017e 50 metrov bez \u013eudsk\u00e9ho z\u00e1sahu. Vy\u017eaduje v\u0161ak neust\u00e1le te\u010d\u00faci potok s dostato\u010dn\u00fdm sp\u00e1dom a je extr\u00e9mne citliv\u00fd na mechanick\u00e9 ne\u010distoty a piesok. Na od\u010derpanie \u0161pinavej vody z jamy je preto nepou\u017eite\u013en\u00fd. \u010eal\u0161ou alternat\u00edvou je povrazov\u00e9 \u010derpadlo, ktor\u00e9 vy\u0165ahuje vodu pomocou uzlov alebo gumov\u00fdch piestikov na lane v \u00fazkej r\u00fare. To s\u00edce zvl\u00e1dne aj hlbok\u00e9 studne, no lano sa r\u00fdchlo opotreb\u00fava a pre otvoren\u00e9 vodn\u00e9 n\u00e1dr\u017ee je nepraktick\u00e9. Posledn\u00fdm konkurentom je ped\u00e1lov\u00e9 piestov\u00e9 \u010derpadlo, ktor\u00e9 s\u00edce pon\u00faka vysok\u00fd prietok, no jeho kon\u0161trukcia je pln\u00e1 tesnen\u00ed a ventilov, ktor\u00e9 vy\u017eaduj\u00fa presn\u00fa v\u00fdrobu a pravideln\u00fa \u00fadr\u017ebu, pri\u010dom nasat\u00fd neporiadok ich m\u00f4\u017ee trvalo po\u0161kodi\u0165.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Archimedova skrutka jednozna\u010dne vyhr\u00e1va v\u0161ade tam, kde ostatn\u00e9 syst\u00e9my zlyh\u00e1vaj\u00fa: pri pr\u00e1ci so zne\u010distenou vodou, pri \u010derpan\u00ed z otvoren\u00fdch n\u00e1dr\u017e\u00ed a riek, pri men\u0161\u00edch v\u00fd\u0161kach a s po\u017eiadavkou na nulov\u00fa \u00fadr\u017ebu. Pon\u00faknu\u0165 v\u00fdkon \u0161tyridsa\u0165 litrov za min\u00fatu bez jedin\u00e9ho wattu spotrebovanej elektrickej energie je skvel\u00fd v\u00fdsledok, ktor\u00fd v\u00e1m zachr\u00e1ni \u00farodu na z\u00e1hrade alebo pom\u00f4\u017ee vysu\u0161i\u0165 z\u00e1klady stavby. Najv\u00e4\u010d\u0161ou v\u00fdhodou v\u0161ak zost\u00e1va fakt, \u017ee na celom zariaden\u00ed sa nem\u00e1 prakticky \u010do pokazi\u0165.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Archimedova skrutka: Geni\u00e1lne \u010derpadlo na vodu bez elektriny, ktor\u00e9 zachr\u00e1ni va\u0161u \u00farodu Vypadla dod\u00e1vka elektrick\u00e9ho pr\u00fadu, stud\u0148a sa nach\u00e1dza v spodnej \u010dasti pozemku a vyv\u00fd\u0161en\u00e9 z\u00e1hradn\u00e9 hriadky u\u017e vidite\u013ene praskaj\u00fa [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":5709,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-5708","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-recept"],"_links":{"self":[{"href":"https:\/\/www.wundertricks.com\/index.php?rest_route=\/wp\/v2\/posts\/5708","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wundertricks.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wundertricks.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wundertricks.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wundertricks.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5708"}],"version-history":[{"count":1,"href":"https:\/\/www.wundertricks.com\/index.php?rest_route=\/wp\/v2\/posts\/5708\/revisions"}],"predecessor-version":[{"id":5710,"href":"https:\/\/www.wundertricks.com\/index.php?rest_route=\/wp\/v2\/posts\/5708\/revisions\/5710"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wundertricks.com\/index.php?rest_route=\/wp\/v2\/media\/5709"}],"wp:attachment":[{"href":"https:\/\/www.wundertricks.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5708"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wundertricks.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5708"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wundertricks.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5708"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}