{"id":1367,"date":"2026-06-26T06:24:15","date_gmt":"2026-06-26T06:24:15","guid":{"rendered":"https:\/\/worm-and-worm-wheel.com\/?p=1367"},"modified":"2026-06-26T06:24:15","modified_gmt":"2026-06-26T06:24:15","slug":"worm-and-worm-wheel-for-sluice-gate-and-dam-valve-actuators","status":"publish","type":"post","link":"https:\/\/worm-and-worm-wheel.com\/cs\/worm-and-worm-wheel-for-sluice-gate-and-dam-valve-actuators\/","title":{"rendered":"\u0160nek a \u0161nekov\u00e9 kolo pro pohony stavidel a p\u0159ehradn\u00edch ventil\u016f"},"content":{"rendered":"
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Korea Ever-Power \u00b7 Pr\u016fvodce aplika\u010dn\u00edm in\u017een\u00fdrstv\u00edm<\/p>\n

\u0160nek a \u0161nekov\u00e9 kolo pro pohony stavidel a p\u0159ehradn\u00edch ventil\u016f<\/h1>\n

Protipovod\u0148ov\u00e1 stavidla na korejsk\u00e9 \u0159ece zadr\u017euj\u00ed 4 metry vodn\u00edho sloupce \u2013 40 kN hydrostatick\u00e9 s\u00edly na metr \u0161\u00ed\u0159ky stavidla \u2013 proti \u0161nekov\u00e9mu soukol\u00ed, kter\u00e9 m\u016f\u017ee mezi jednotliv\u00fdmi operacemi st\u00e1t 11 m\u011bs\u00edc\u016f nehybn\u011b. Kdy\u017e p\u0159ijde monzun a stavidlo se mus\u00ed otev\u0159\u00edt, \u0161nekov\u00e9 soukol\u00ed mus\u00ed na prvn\u00ed povel p\u0159ekonat m\u011bs\u00edce statick\u00e9ho t\u0159en\u00ed, koroze a hromad\u011bn\u00ed bahna. Pokud se stavidlo neotev\u0159e, nejedn\u00e1 se o probl\u00e9m s \u00fadr\u017ebou \u2013 jedn\u00e1 se o povod\u0148ovou ud\u00e1lost.<\/p>\n

Promluvte si s in\u017een\u00fdrem vodohospod\u00e1\u0159sk\u00e9 infrastruktury \u2192<\/a><\/p>\n<\/div>\n

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Rychl\u00e1 odpov\u011b\u010f<\/div>\n

Stavidla, p\u0159ehradn\u00ed ventily, pohony vahadlov\u00fdch potrub\u00ed a protipovod\u0148ov\u00e9 stavidla pou\u017e\u00edvaj\u00ed \u0161nekov\u00e9 p\u0159evody, proto\u017ee \u017e\u00e1dn\u00fd jin\u00fd typ p\u0159evodu nekombinuje samosvorn\u00e9 udr\u017een\u00ed tlaku vody s mo\u017enost\u00ed ru\u010dn\u00edho ovl\u00e1d\u00e1n\u00ed ru\u010dn\u00edm kolem. Protokol pro pono\u0159en\u00ed a vystaven\u00ed se pono\u0159en\u00ed klasifikuje instalace pohon\u016f do \u010dty\u0159 \u00farovn\u00ed \u2013 z\u00f3na st\u0159\u00edkaj\u00edc\u00ed vody, p\u0159eru\u0161ovan\u00e1 z\u00e1plava, trval\u00e9 pono\u0159en\u00ed a tlakov\u00e9 pono\u0159en\u00ed \u2013 a ka\u017edou z nich mapuje na po\u017eadovan\u00e9 kryt\u00ed IP, ochranu proti korozi, typ t\u011bsn\u011bn\u00ed a specifikaci katodick\u00e9 ochrany. Samosvorn\u00e9 udr\u017euje stavidlo v jak\u00e9koli poloze proti tlaku vody bez samostatn\u00e9ho zamykac\u00edho mechanismu. Nouzov\u00e9 ru\u010dn\u00ed ovl\u00e1d\u00e1n\u00ed ru\u010dn\u00edm kolem je povinn\u00e9 pro v\u0161echny p\u0159ehradn\u00ed a protipovod\u0148ov\u00e9 stavidla, proto\u017ee v\u00fdpadek proudu b\u011bhem povodn\u011b je nejpravd\u011bpodobn\u011bj\u0161\u00edm sc\u00e9n\u00e1\u0159em vy\u017eaduj\u00edc\u00edm ovl\u00e1d\u00e1n\u00ed stavidla. Z\u00e1va\u017enost koroze se pohybuje od m\u00edrn\u00e9 (sladkovodn\u00ed zavla\u017eovac\u00ed kan\u00e1l) p\u0159es st\u0159edn\u00ed (brakick\u00fd estu\u00e1r) a\u017e po silnou (ochrana pob\u0159e\u017e\u00ed mo\u0159skou vodou) \u2013 co\u017e vy\u017eaduje postupn\u00fd p\u0159echod od pozinkovan\u00e9 oceli k nerezov\u00e9 oceli 316L a\u017e po duplexn\u00ed nerezovou ocel s ochranou ob\u011btn\u00ed anodou.<\/p>\n<\/div>\n

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Pro\u010d stavidla a p\u0159ehradn\u00ed ventily pou\u017e\u00edvaj\u00ed \u0161nekov\u00e9 p\u0159evodov\u00e9 pohony<\/h2>\n
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Infrastruktura pro regulaci vodn\u00edch zdroj\u016f \u2013 zavla\u017eovac\u00ed p\u0159ehrady, stavidla, \u0159\u00ed\u010dn\u00ed jezy, v\u00fdpusti n\u00e1dr\u017e\u00ed a p\u0159\u00edlivov\u00e9 bari\u00e9ry \u2013 funguje na pomez\u00ed vysok\u00e9ho to\u010div\u00e9ho momentu (pohyb t\u011b\u017ek\u00fdch ocelov\u00fdch staven proti tlaku vody), nepravideln\u00e9ho provozu (n\u011bkter\u00e1 stavena funguj\u00ed pouze b\u011bhem sez\u00f3nn\u00edch povodn\u00ed) a absolutn\u00ed spolehlivosti (porucha b\u011bhem povodn\u011b m\u016f\u017ee zp\u016fsobit ztr\u00e1ty na \u017eivotech a majetku). \u0160nekov\u00fd p\u0159evod spl\u0148uje v\u0161echny t\u0159i po\u017eadavky d\u00edky samosvorn\u00e9mu udr\u017een\u00ed polohy, vysok\u00e9mu jednostup\u0148ov\u00e9mu p\u0159evodov\u00e9mu pom\u011bru pro ru\u010dn\u00ed ovl\u00e1d\u00e1n\u00ed a mechanick\u00e9 jednoduchosti, kter\u00e1 p\u0159e\u017eije roky ne\u010dinnosti.<\/p>\n

D\u00edky t\u0159em vlastnostem jsou \u0161neky a \u0161nekov\u00e9 kolo standardem pro pohony vodn\u00edch uz\u00e1v\u011br\u016f na v\u0161ech kontinentech a v ka\u017ed\u00e9m klimatu.<\/p>\n<\/div>\n

\"Princip<\/div>\n<\/div>\n
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Udr\u017een\u00ed polohy tlakem vody<\/div>\n

\u010c\u00e1ste\u010dn\u011b otev\u0159en\u00e1 stavidla \u010del\u00ed asymetrick\u00e9mu tlaku vody, kter\u00fd se ji sna\u017e\u00ed zcela otev\u0159\u00edt nebo zav\u0159\u00edt (v z\u00e1vislosti na geometrii stavidel). Samosvorn\u00e9 udr\u017euje stavidla v jak\u00e9koli mezilehl\u00e9 poloze proti tomuto tlaku \u2013 umo\u017e\u0148uje tak p\u0159esn\u00e9 \u0159\u00edzen\u00ed pr\u016ftoku bez samostatn\u00e9ho hydraulick\u00e9ho z\u00e1mku nebo mechanick\u00e9 z\u00e1padky.<\/p>\n<\/div>\n

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Ru\u010dn\u00ed p\u0159ep\u00edn\u00e1n\u00ed ru\u010dn\u00edho kola<\/div>\n

Kdy\u017e dojde k poru\u0161e elektromotoru (co\u017e je b\u011b\u017en\u00e9 p\u0159i povodn\u00edch, kdy je po\u0161kozena energetick\u00e1 infrastruktura), m\u016f\u017ee obsluha poh\u00e1n\u011bt stejn\u00fd p\u00e1r \u0161nekov\u00fdch p\u0159evod\u016f pomoc\u00ed ru\u010dn\u00edho kola. Vysok\u00fd p\u0159evodov\u00fd pom\u011br (40:1 a\u017e 100:1) p\u0159ev\u00e1d\u00ed kroutic\u00ed moment ru\u010dn\u00edho kola na tis\u00edce newtonmetr\u016f pot\u0159ebn\u00fdch k pohybu t\u011b\u017ek\u00e9 br\u00e1ny proti tlaku vody.<\/p>\n<\/div>\n

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P\u0159e\u017eit\u00ed v dormanci<\/div>\n

N\u011bkter\u00e9 stavidla jsou mezi provozn\u00edmi sez\u00f3nami zav\u0159en\u00e1 po dobu 6 a\u017e 11 m\u011bs\u00edc\u016f. \u0160nekov\u00fd p\u0159evod mus\u00ed tuto dobu klidu p\u0159e\u017e\u00edt \u2013 odol\u00e1vat korozi, vnik\u00e1n\u00ed bahna a statick\u00e9mu t\u0159en\u00ed \u2013 a spolehliv\u011b fungovat na prvn\u00ed povel, kdy\u017e doraz\u00ed povode\u0148. \u017d\u00e1dn\u00fd jin\u00fd typ p\u0159evodu se rutinn\u011b netestuje na m\u011bs\u00ed\u010dn\u00ed klid.<\/p>\n<\/div>\n<\/div>\n

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Protokol pro vystaven\u00ed pono\u0159en\u00ed a z\u00e1plav\u00e1m \u2013 od \u00farovn\u011b instalace a\u017e po specifikaci ochrany<\/h2>\n

Hlavn\u00ed specifika\u010dn\u00ed v\u00fdzvou pro p\u00e1ry \u0161nekov\u00fdch p\u0159evod\u016f stavidel je vystaven\u00ed vod\u011b \u2013 nejen st\u0159\u00edkaj\u00edc\u00ed vod\u011b nebo de\u0161ti (kter\u00e9mu \u010del\u00ed i provozovatel\u00e9 stavidel uveden\u00ed v \u010dl\u00e1nku A09), ale tak\u00e9 \u010d\u00e1ste\u010dn\u00e9mu nebo \u00fapln\u00e9mu pono\u0159en\u00ed b\u011bhem b\u011b\u017en\u00e9ho provozu nebo v p\u0159\u00edpad\u011b povodn\u00ed. Protokol o pono\u0159en\u00ed klasifikuje instalace pohon\u016f podle jejich vystaven\u00ed vod\u011b a mapuje ka\u017edou \u00farove\u0148 s po\u017eadovanou ochranou.<\/p>\n

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Hladina ponoru<\/th>\nTypick\u00e1 instalace<\/th>\nKryt\u00ed IP<\/th>\nMateri\u00e1l \u010derv\u016f<\/th>\nT\u011bsn\u011bn\u00ed a ochrana<\/th>\nKatodick\u00e1 ochrana<\/th>\n<\/tr>\n<\/thead>\n
S1 \u2013 Z\u00f3na st\u0159\u00edkaj\u00edc\u00ed vody<\/td>\nZv\u00fd\u0161en\u00fd pohon nad maxim\u00e1ln\u00ed hladinu vody<\/td>\nIP66<\/td>\n\u017d\u00e1rov\u00e9 zinkov\u00e1n\u00ed nebo nerezov\u00e1 ocel 304<\/td>\nDvojit\u00e9 b\u0159itov\u00e9 t\u011bsn\u011bn\u00ed, pouzdro s epoxidov\u00fdm povlakem<\/td>\nNen\u00ed vy\u017eadov\u00e1no<\/td>\n<\/tr>\n
S2 \u2013 Ob\u010dasn\u00e1 z\u00e1plava<\/td>\nPohon pono\u0159en\u00fd b\u011bhem z\u00e1plavy (hodiny a\u017e dny)<\/td>\nIP67<\/td>\nNerezov\u00e1 ocel 316L<\/td>\nPTFE okraj + labyrint, lodn\u00ed barva dle ISO 12944 C4<\/td>\nDoporu\u010deno (zinkov\u00e1 anoda)<\/td>\n<\/tr>\n
S3 \u2013 Trval\u00e9 pono\u0159en\u00ed<\/td>\nPohon pod norm\u00e1ln\u00ed hladinou vody (v\u00fdstup z n\u00e1dr\u017ee)<\/td>\nIP68 (hloubkov\u011b odoln\u00e9)<\/td>\nDuplexn\u00ed nerezov\u00e1 ocel 316L nebo 2205<\/td>\nTrojit\u00e9 mechanick\u00e9 t\u011bsn\u011bn\u00ed, lodn\u00ed barva C5-M<\/td>\nPovinn\u00e9 (ob\u011btn\u00ed zinkov\u00e1\/hlin\u00edkov\u00e1 anoda)<\/td>\n<\/tr>\n
S4 \u2013 Tlakov\u00e9 pono\u0159en\u00ed<\/td>\nHloubkov\u00fd ventil p\u0159\u00edvodn\u00edho potrub\u00ed (p\u0159\u00edjem vodn\u00ed energie)<\/td>\nIP68 (tlakov\u00e1 odolnost)<\/td>\n2205 duplexn\u00ed nerezov\u00e1 ocel nebo Monel<\/td>\nTlakov\u011b vyv\u00e1\u017een\u00e9 mechanick\u00e9 t\u011bsn\u011bn\u00ed, pln\u00e9 epoxidov\u00e9 zapouzd\u0159en\u00ed<\/td>\nPovinn\u00e9 (syst\u00e9m s vtla\u010den\u00fdm proudem)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

N\u00e1r\u016fst n\u00e1klad\u016f v z\u00e1vislosti na \u00farovni ponoru je dramatick\u00fd: p\u00e1r \u0161nekov\u00fdch kol s aktu\u00e1torem S1 pro z\u00f3nu rozst\u0159iku m\u016f\u017ee st\u00e1t 400 a\u017e 800 USD; p\u00e1r S4 pro pono\u0159en\u00ed pod tlakem s duplexn\u00edm nerezov\u00fdm t\u011bsn\u011bn\u00edm a tlakov\u011b vyv\u00e1\u017een\u00fdm t\u011bsn\u011bn\u00edm m\u016f\u017ee st\u00e1t 8 000 a\u017e 15 000 USD. Specifikace mus\u00ed odpov\u00eddat skute\u010dn\u00e9 \u00farovni ponoru instalace \u2013 nadm\u011brn\u00e1 specifikace rozpo\u010dtu na infrastrukturu odpad\u016f; podhodnocen\u00e1 specifikace vede k korozn\u00edmu selh\u00e1n\u00ed do 2 a\u017e 5 let na m\u00edst\u011b, kter\u00e9 m\u016f\u017ee vy\u017eadovat p\u0159\u00edstup pot\u00e1p\u011b\u010d\u016f nebo vy\u010derp\u00e1n\u00ed n\u00e1dr\u017ee pro v\u00fdm\u011bnu.<\/p>\n

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Nouzov\u00e9 ru\u010dn\u00ed ovl\u00e1d\u00e1n\u00ed \u2013 ovl\u00e1d\u00e1n\u00ed ru\u010dn\u00edm kole\u010dkem p\u0159i v\u00fdpadku nap\u00e1jen\u00ed<\/h2>\n

\"Ru\u010dn\u00ed<\/p>\n

Nejpravd\u011bpodobn\u011bj\u0161\u00ed dobou, kdy mus\u00ed b\u00fdt stavidlo v provozu, je povode\u0148. Nejpravd\u011bpodobn\u011bj\u0161\u00ed dobou v\u00fdpadku proudu je b\u011bhem povodn\u011b \u2013 kdy\u017e povod\u0148ov\u00e1 voda po\u0161kod\u00ed elektrickou infrastrukturu proti proudu. Ru\u010dn\u00ed ovl\u00e1d\u00e1n\u00ed proto nen\u00ed nouzovou z\u00e1lohou pro vz\u00e1cn\u00e9 ud\u00e1losti; je to o\u010dek\u00e1van\u00fd provozn\u00ed re\u017eim v nejkriti\u010dt\u011bj\u0161\u00edch okam\u017eic\u00edch \u017eivotnosti stavidla.<\/p>\n

Jak funguje ru\u010dn\u00ed p\u0159ep\u00edn\u00e1n\u00ed s p\u00e1rem \u0161nekov\u00fdch p\u0159evod\u016f.<\/strong> Pohon m\u00e1 dva vstupn\u00ed kan\u00e1ly ke stejn\u00e9 \u0161nekov\u00e9 h\u0159\u00eddeli: elektromotor (norm\u00e1ln\u00ed provoz) a ru\u010dn\u00ed kolo s mechanismem vypnut\u00ed spojky (ru\u010dn\u00ed ovl\u00e1d\u00e1n\u00ed). Kdy\u017e obsluha aktivuje ru\u010dn\u00ed kolo, motor se vypne a obsluha ot\u00e1\u010d\u00ed \u0161nek p\u0159\u00edmo prost\u0159ednictv\u00edm ru\u010dn\u00edho kola. Vysok\u00fd p\u0159evodov\u00fd pom\u011br \u0161nekov\u00e9ho p\u0159evodu (obvykle 60:1 a\u017e 100:1 u pohon\u016f vrat) zn\u00e1sobuje to\u010div\u00fd moment ru\u010dn\u00edho kola obsluhy \u2013 obsluha p\u016fsob\u00edc\u00ed silou 250 N na ru\u010dn\u00ed kolo o pr\u016fm\u011bru 400 mm (vstupn\u00ed s\u00edla 100 N\u00b7m) prost\u0159ednictv\u00edm \u0161nekov\u00e9ho p\u0159evodu s pom\u011brem 80:1 dod\u00e1v\u00e1 na d\u0159\u00edk vrat s\u00edlu 80 \u00d7 100 \u00d7 0,40 = 3 200 N\u00b7m. To je dostate\u010dn\u00e9 k pohybu v\u011bt\u0161iny zavla\u017eovac\u00edch a protipovod\u0148ov\u00fdch bran proti norm\u00e1ln\u00edmu sloupci vody.<\/p>\n

Doba pohybu br\u00e1ny p\u0159i ru\u010dn\u00edm ovl\u00e1d\u00e1n\u00ed.<\/strong> Br\u00e1na, kter\u00e1 se s motorov\u00fdm pohonem otev\u0159e za 2 minuty, m\u016f\u017ee vy\u017eadovat 15 a\u017e 30 minut nep\u0159etr\u017eit\u00e9ho ot\u00e1\u010den\u00ed ru\u010dn\u00edm kolem. U protipovod\u0148ov\u00fdch stavidel, kde je rychl\u00e9 otev\u0159en\u00ed kritick\u00e9, n\u011bkter\u00e9 instalace poskytuj\u00ed p\u0159enosn\u00e9 p\u0159ipojen\u00ed gener\u00e1toru (obejde ru\u010dn\u00ed ovl\u00e1d\u00e1n\u00ed) nebo bateriov\u00fd motorov\u00fd pohon jako p\u0159echodn\u00e9 \u0159e\u0161en\u00ed mezi pln\u011b manu\u00e1ln\u00edm a pln\u00fdm nap\u00e1jen\u00edm ze s\u00edt\u011b.<\/p>\n

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Pozn\u00e1mka k in\u017een\u00fdrsk\u00e9mu stolu<\/div>\n

Korejsk\u00fd \u00fa\u0159ad pro spr\u00e1vu \u0159ek testoval b\u011bhem ka\u017edoro\u010dn\u00ed inspekce p\u0159ed monzuny ru\u010dn\u00ed ovl\u00e1d\u00e1n\u00ed 22 pohon\u016f stavidel. V\u0161ech 22 staven bylo od p\u0159edchoz\u00ed monzunov\u00e9 sez\u00f3ny uzav\u0159eno po dobu 8 a\u017e 10 m\u011bs\u00edc\u016f. V\u00fdsledek: 4 z 22 pohon\u016f nereagovaly na ru\u010dn\u00ed kolo \u2013 \u0161nekov\u00e9 kolo se zad\u0159elo. Vy\u0161et\u0159ov\u00e1n\u00ed zjistilo, \u017ee voda pronikla do pouzdra s kryt\u00edm IP66 p\u0159es degradovan\u00e1 b\u0159itov\u00e1 t\u011bsn\u011bn\u00ed b\u011bhem zimn\u00edch cykl\u016f mrazu a t\u00e1n\u00ed (rozp\u00edn\u00e1n\u00ed ledu po\u0161kodilo okraj t\u011bsn\u011bn\u00ed). Uvnit\u0159 pouzdra emulgovalo mazivo a ocelov\u00fd \u0161nek se v m\u00edst\u011b kontaktu s bronzov\u00fdm kolem povrchov\u011b korozn\u011b spojil. Zadechnut\u00ed nebylo katastrof\u00e1ln\u00ed \u2013 pronikaj\u00edc\u00ed olej a ru\u010dn\u00ed kyvn\u00e9 pohyby uvolnily v\u0161echny 4 p\u00e1ry b\u011bhem 2 hodin. Dvouhodinov\u00e9 zpo\u017ed\u011bn\u00ed stavidla b\u011bhem skute\u010dn\u00e9 povodn\u011b by v\u0161ak bylo nep\u0159ijateln\u00e9. N\u00e1pravn\u00e9 opat\u0159en\u00ed: upgradovat v\u0161ech 22 pohon\u016f z IP66 na IP67 (t\u011bsn\u011bn\u00ed s certifikac\u00ed pro pono\u0159en\u00ed pro \u00farove\u0148 ob\u010dasn\u00e9ho zaplaven\u00ed S2 \u2013 vhodn\u00e9 pro pohony, kter\u00e9 jsou ka\u017edoro\u010dn\u011b vystaveny pono\u0159en\u00ed v d\u016fsledku povodn\u011b) a zav\u00e9st \u010dtvrtletn\u00ed program cvi\u010den\u00ed s rotac\u00ed ru\u010dn\u00edho kola (4 pln\u00e9 ot\u00e1\u010dky v ka\u017ed\u00e9m sm\u011bru), aby se zabr\u00e1nilo korozi a spojov\u00e1n\u00ed b\u011bhem obdob\u00ed klidu. Program cvi\u010den\u00ed stoj\u00ed nulu na d\u00edly a trv\u00e1 15 minut na vrat za \u010dtvrtlet\u00ed \u2013 22 vrat \u00d7 15 min \u00d7 4 \u010dtvrtlet\u00ed = 22 hodin pr\u00e1ce ro\u010dn\u011b, aby se zaru\u010dila p\u0159ipravenost 22 vrat proti povodni. Pou\u010den\u00ed: ne\u010dinn\u00e9 p\u00e1ry \u0161nekov\u00fdch p\u0159evod\u016f ve vodn\u00ed infrastruktu\u0159e je nutn\u00e9 pravideln\u011b procvi\u010dovat, aby se zabr\u00e1nilo korozi a spojov\u00e1n\u00ed \u2013 samosvorn\u00e1 vlastnost, kter\u00e1 dr\u017e\u00ed vrata, tak\u00e9 zabra\u0148uje ru\u010dn\u00edmu uvoln\u011bn\u00ed, pokud se kontaktn\u00ed plochy spoj\u00ed b\u011bhem del\u0161\u00edch statick\u00fdch obdob\u00ed.<\/p>\n<\/div>\n

<\/p>\n

Odolnost proti korozi \u2013 sladk\u00e1 voda, brakick\u00e9 \u00fast\u00ed \u0159eky a mo\u0159sk\u00e1 voda<\/h2>\n

\"materi\u00e1ly<\/p>\n

\n
\n
Sladk\u00e1 voda (zavla\u017eov\u00e1n\u00ed, n\u00e1dr\u017e)<\/div>\n

Rychlost koroze:<\/strong> 0,02\u20130,05 mm\/rok na uhl\u00edkov\u00e9 oceli.
\n\u010cerv:<\/strong> \u017d\u00e1rov\u011b pozinkovan\u00e9 nebo z nerezov\u00e9 oceli 304.
\nKolo:<\/strong> Fosforov\u00fd bronz CuSn12Ni (standardn\u00ed \u2013 v sladk\u00e9 vod\u011b nehroz\u00ed riziko odzinkov\u00e1n\u00ed).
\n\u017divot:<\/strong> 20\u201330 let p\u0159i expozici S1\/S2.<\/p>\n<\/div>\n

\n
Brakick\u00e1 \/ \u00fast\u00ed (p\u0159\u00edlivov\u00e9 br\u00e1ny)<\/div>\n

Rychlost koroze:<\/strong> 0,1\u20130,3 mm\/rok na uhl\u00edkov\u00e9 oceli.
\n\u010cerv:<\/strong> Nerezov\u00e1 ocel 316L (obsah molybdenu odol\u00e1v\u00e1 chloridov\u00e9 d\u016flkov\u00e9 k\u016f\u0159e).
\nKolo:<\/strong> Hlin\u00edkov\u00fd bronz CuAl10Fe5Ni5 (\u017e\u00e1dn\u00e9 odzinkov\u00e1n\u00ed v chloridov\u00e9 vod\u011b).
\n\u017divot:<\/strong> 15\u201325 let s katodickou ochranou.<\/p>\n<\/div>\n

\n
Mo\u0159sk\u00e1 voda (pob\u0159e\u017en\u00ed obrana, p\u0159\u00edstav)<\/div>\n

Rychlost koroze:<\/strong> 0,3\u20131,0 mm\/rok na uhl\u00edkov\u00e9 oceli.
\n\u010cerv:<\/strong> Duplexn\u00ed nerezov\u00e1 ocel 2205 nebo Monel 400.
\nKolo:<\/strong> Nikl-hlin\u00edkov\u00fd bronz NAB (slitina pro n\u00e1mo\u0159n\u00ed pou\u017eit\u00ed dle vojensk\u00fdch specifikac\u00ed).
\n\u017divot:<\/strong> 15\u201320 let se syst\u00e9mem katodick\u00e9 ochrany s vlo\u017een\u00fdm proudem.<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

T\u0159i sk\u0159\u00edn\u011b \u0161nekov\u00fdch p\u0159evod\u016f stavidla a p\u0159ehradn\u00edho ventilu<\/h2>\n

\"Korea<\/p>\n

P\u0159\u00edpad 1 \u2013 Korejsk\u00e1 zavla\u017eovac\u00ed p\u0159ehrada: 3 m \u0161irok\u00fd stavidlo, z\u00f3na st\u0159\u00edkaj\u00edc\u00ed vody S1, ru\u010dn\u00ed ovl\u00e1d\u00e1n\u00ed<\/h3>\n

Korejsk\u00fd \u00fa\u0159ad pro spr\u00e1vu vodn\u00edch zdroj\u016f v zem\u011bd\u011blstv\u00ed specifikoval p\u00e1ry \u0161nekov\u00fdch p\u0159evod\u016f pro 6 stavidel na zavla\u017eovac\u00ed p\u0159ehrad\u011b z\u00e1sobuj\u00edc\u00ed r\u00fd\u017eov\u00e1 pole. \u0160\u00ed\u0159ka stavidla: 3 metry. V\u00fd\u0161ka stavidla: 2,5 metru. Vodn\u00ed v\u00fd\u0161ka p\u0159i maxim\u00e1ln\u00ed hladin\u011b n\u00e1dr\u017ee: 3,2 metru. Hydrostatick\u00e1 s\u00edla na stavidle: 3,0 \u00d7 2,5 \u00d7 0,5 \u00d7 9 810 \u00d7 3,2 = 117 720 N. Tah v\u0159etena stavidla: p\u0159ibli\u017en\u011b 85 000 N (v\u010detn\u011b t\u0159en\u00ed). V\u00fdstupn\u00ed kroutic\u00ed moment pohonu na matici v\u0159etena: 4 200 N\u00b7m. \u0160nekov\u00e9 p\u0159evodovka: jednostup\u0148ov\u00e1, modul 6, rozte\u010d 160 mm, p\u0159evodov\u00fd pom\u011br 60:1. Motor: t\u0159\u00edf\u00e1zov\u00fd 2,2 kW. Ru\u010dn\u00ed ovl\u00e1d\u00e1n\u00ed: ru\u010dn\u00ed kolo 500 mm (vstupn\u00ed kroutic\u00ed moment 125 N\u00b7m p\u0159i ru\u010dn\u00ed s\u00edle 250 N, v\u00fdstup 125 \u00d7 60 \u00d7 0,42 = 3 150 N\u00b7m \u2013 dostate\u010dn\u00e9 pro norm\u00e1ln\u00ed vodn\u00ed v\u00fd\u0161ka, ale p\u0159i maxim\u00e1ln\u00ed v\u00fd\u0161ce minim\u00e1ln\u00ed). Hladina ponoru: S1 (pohon namontovan\u00fd na korun\u011b hr\u00e1ze, nad maxim\u00e1ln\u00ed hladinou vody). Materi\u00e1l: \u017e\u00e1rov\u011b pozinkovan\u00fd \u0161nek, kolo z fosforov\u00e9ho bronzu. T\u011bsn\u011bn\u00ed: IP66, dvojit\u00fd b\u0159it. N\u00e1t\u011br: ISO 12944 C3 (m\u00edrn\u00e9 venkovsk\u00e9 prost\u0159ed\u00ed). Cena za p\u00e1r \u0161nekov\u00fdch kol pohonu: 580 USD. \u010ctvrtletn\u00ed cvi\u010debn\u00ed program: 4 ot\u00e1\u010dky v ka\u017ed\u00e9m sm\u011bru, aby se zabr\u00e1nilo lepen\u00ed v d\u016fsledku dormance. C\u00edlov\u00e1 \u017eivotnost: 25 let.<\/p>\n

P\u0159\u00edpad 2 \u2013 Protipovod\u0148ov\u00e1 stavidla japonsk\u00e9ho tajfunu: \u0161\u00ed\u0159ka 6 m, ob\u010dasn\u00e1 z\u00e1plava S2, z\u00e1lo\u017en\u00ed baterie<\/h3>\n

Japonsk\u00e1 prefekturn\u00ed agentura pro \u0159\u00edzen\u00ed povodn\u00ed specifikovala p\u00e1ry \u0161nekov\u00fdch p\u0159evod\u016f pro 4 protipovod\u0148ov\u00e9 stavidla na m\u011bstsk\u00e9 \u0159ece v pob\u0159e\u017en\u00edm m\u011bst\u011b n\u00e1chyln\u00e9m k tajfun\u016fm. \u0160\u00ed\u0159ka stavidla: 6 metr\u016f. Maxim\u00e1ln\u00ed sp\u00e1dov\u00e1 v\u00fd\u0161ka b\u011bhem tajfunov\u00e9ho vln\u011bn\u00ed: 5,5 metru. Tah v\u0159etene stavidla: 220 000 N. V\u00fdstupn\u00ed to\u010div\u00fd moment pohonu: 12 800 N\u00b7m. Podstavec pohonu byl 1,2 metru nad norm\u00e1ln\u00ed hladinou vody, ale b\u011bhem tajfunov\u00fdch vln\u011bn\u00ed byl pono\u0159en (S2 \u2013 ob\u010dasn\u00e1 povode\u0148, doba pono\u0159en\u00ed 6 a\u017e 24 hodin na ud\u00e1lost, 2 a\u017e 4 ud\u00e1losti ro\u010dn\u011b). \u0160nekov\u00fd p\u0159evod: jednostup\u0148ov\u00fd, modul 8, rozte\u010d 200 mm, p\u0159evodov\u00fd pom\u011br 80:1. Materi\u00e1l: \u0161nek z nerezov\u00e9 oceli 316L, kolo z hlin\u00edkov\u00e9ho bronzu CuAl10Fe5Ni5 (brakick\u00e1 voda \u2013 \u00fast\u00ed \u0159eky, vliv p\u0159\u00edlivu a odlivu). T\u011bsn\u011bn\u00ed: IP67, PTFE okraj plus labyrint. N\u00e1t\u011br: ISO 12944 C4-H (pob\u0159e\u017en\u00ed). Katodick\u00e1 ochrana: zinkov\u00e9 anody p\u0159i\u0161roubovan\u00e9 k vn\u011bj\u0161\u00ed stran\u011b pouzdra (vym\u011b\u0148uj\u00ed se ka\u017ed\u00fdch 5 let). Ru\u010dn\u00ed ovl\u00e1d\u00e1n\u00ed: ru\u010dn\u00ed kolo 600 mm. Nav\u00edc: 48V bateriov\u011b z\u00e1lo\u017en\u00ed motorov\u00fd pohon pro nouzov\u00fd provoz p\u0159i v\u00fdpadku proudu \u2013 umo\u017e\u0148uje 3 kompletn\u00ed cykly otev\u0159en\u00ed a zav\u0159en\u00ed p\u0159i pln\u00e9m nabit\u00ed baterie. Cena za p\u00e1r \u0161nekov\u00fdch p\u0159evod\u016f pohonu: 3 200 USD. Z\u00e1lo\u017en\u00ed bateriov\u00fd syst\u00e9m: 4 500 USD za br\u00e1nu. Proch\u00e1zet pohon \u0161nekov\u00e9ho p\u0159evodu<\/a> mo\u017enosti pro aplikace v oblasti protipovod\u0148ov\u00fdch stavidel a vodohospod\u00e1\u0159sk\u00e9 infrastruktury.<\/p>\n

P\u0159\u00edpad 3 \u2013 Vietnamsk\u00fd stavidlo v delt\u011b Mekongu: 2 m \u0161irok\u00e9, S2 p\u0159\u00edlivov\u011b brakick\u00e9, omezen\u00e9 n\u00e1klady<\/h3>\n

Vietnamsk\u00fd provin\u010dn\u00ed vodohospod\u00e1\u0159sk\u00fd \u00fa\u0159ad specifikoval p\u00e1ry \u0161nekov\u00fdch p\u0159evod\u016f pro 12 mal\u00fdch stavidel reguluj\u00edc\u00edch vnik\u00e1n\u00ed slan\u00e9 vody do zem\u011bd\u011blsk\u00fdch kan\u00e1l\u016f v delt\u011b Mekongu. \u0160\u00ed\u0159ka stavidla: 2 metry. Sp\u00e1dov\u00e1 v\u00fd\u0161ka: 1,8 metru (p\u0159\u00edlivov\u00fd rozd\u00edl). Tah v\u0159etene stavidla: 28 000 N. V\u00fdstupn\u00ed to\u010div\u00fd moment pohonu: 1 400 N\u00b7m. Pono\u0159en\u00ed: S2 (pono\u0159en\u00ed do p\u0159\u00edlivu dvakr\u00e1t denn\u011b po dobu 2 a\u017e 4 hodin b\u011bhem jarn\u00edho p\u0159\u00edlivu). Brakick\u00e1 voda (slanost 5 a\u017e 15 ppm) vy\u017eadovala materi\u00e1ly odoln\u00e9 korozi, ale provin\u010dn\u00ed rozpo\u010det specifikaci omezoval. P\u00e1r \u0161nekov\u00fdch p\u0159evod\u016f: jednochod\u00fd, modul 5, rozte\u010d 125 mm, p\u0159evodov\u00fd pom\u011br 50:1. Materi\u00e1l: \u0161nek z nerezov\u00e9 oceli 304 (m\u00e9n\u011b odoln\u00fd proti korozi ne\u017e 316L, ale dosta\u010duj\u00edc\u00ed p\u0159i st\u0159edn\u00ed slanosti a v\u00fdrazn\u011b levn\u011bj\u0161\u00ed), kolo z fosforov\u00e9ho bronzu (p\u0159ijateln\u00e9 pro brakickou vodu p\u0159i t\u00e9to \u00farovni slanosti \u2013 riziko odzinkov\u00e1n\u00ed je n\u00edzk\u00e9 pod 15 ppt). T\u011bsn\u011bn\u00ed: IP67, EPDM b\u0159it s labyrintem. Katodick\u00e1 ochrana: zinkov\u00e9 anody (ro\u010dn\u011b vym\u011b\u0148ov\u00e1ny kv\u016fli vysok\u00e9 rychlosti rozpou\u0161t\u011bn\u00ed v brakick\u00e9 vod\u011b). Ru\u010dn\u00ed ovl\u00e1d\u00e1n\u00ed: ru\u010dn\u00ed kolo 400 mm. Cena za p\u00e1r: 720 USD. C\u00edlov\u00e1 \u017eivotnost: 15 let s ro\u010dn\u00ed v\u00fdm\u011bnou anody (18 USD za sadu anod). Ro\u010dn\u00ed kontrola: cvi\u010den\u00ed ru\u010dn\u00edho kola (\u010dtvrtletn\u011b), stav t\u011bsn\u011bn\u00ed (ro\u010dn\u011b), spot\u0159eba anody (ro\u010dn\u011b). Celkov\u00fd 15let\u00fd rozpo\u010det na \u00fadr\u017ebu na jeden uz\u00e1v\u011br pro \u0161nekov\u00fd p\u0159evod: p\u0159ibli\u017en\u011b 540 USD (anody + pr\u00e1ce) \u2013 zhruba 75 procent p\u016fvodn\u00ed ceny p\u00e1ru.<\/p>\n

<\/p>\n

\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n
\n
\nOt\u00e1zka: Jak zabr\u00e1n\u00edm zad\u0159en\u00ed nefunk\u010dn\u00edho p\u00e1ru \u0161nekov\u00fdch kol stavidla?<\/summary>\n

Zave\u010fte \u010dtvrtletn\u00ed program cvi\u010den\u00ed: oto\u010dte ru\u010dn\u00edm kolem o 4 pln\u00e9 ot\u00e1\u010dky v ka\u017ed\u00e9m sm\u011bru (otev\u0159ete a pot\u00e9 zav\u0159ete), abyste p\u0159eru\u0161ili korozn\u00ed vazbu na kontaktn\u00edch ploch\u00e1ch zub\u016f. Po ka\u017ed\u00e9m cvi\u010den\u00ed naneste na p\u0159\u00edstupn\u00fd z\u00e1vit \u0161neku tenkou vrstvu pasty proti zad\u0159en\u00ed (na b\u00e1zi zinku pro sladkou vodu, na b\u00e1zi niklu pro brakickou\/mo\u0159skou vodu). U uz\u00e1v\u011br\u016f, kter\u00e9 nelze zat\u011b\u017eovat (trvale pono\u0159en\u00e9 S3\/S4), zadejte do p\u016fvodn\u00ed mazac\u00ed n\u00e1pln\u011b pastu proti zad\u0159en\u00ed n\u00e1mo\u0159n\u00ed kvality a zvy\u0161te hustotu proudu katodick\u00e9 ochrany, abyste potla\u010dili elektrochemickou korozi, kter\u00e1 zp\u016fsobuje vazbu. Program cvi\u010den\u00ed je nej\u00fa\u010dinn\u011bj\u0161\u00edm preventivn\u00edm opat\u0159en\u00edm \u00fadr\u017eby pro p\u00e1ry \u0161nekov\u00fdch kol vodn\u00edch uz\u00e1v\u011br\u016f \u2013 a stoj\u00ed pouze pracovn\u00ed dobu.<\/p>\n<\/details>\n

\nOt\u00e1zka: Jak\u00fd to\u010div\u00fd moment vytv\u00e1\u0159\u00ed ru\u010dn\u00ed p\u0159ep\u00edn\u00e1n\u00ed ru\u010dn\u00edho kola?<\/summary>\n

T_v\u00fdstup = F_ru\u010dn\u00ed \u00d7 R_kolo \u00d7 i \u00d7 \u03b7. Pro typickou instalaci: F_ru\u010dn\u00ed = 250 N (trval\u00e1 s\u00edla jednou rukou), R_kolo = 0,25 m (kolo o pr\u016fm\u011bru 500 mm), i = 80 (p\u0159evodov\u00fd pom\u011br \u0161nekov\u00e9ho p\u0159evodu), \u03b7 = 0,40 (\u00fa\u010dinnost p\u00e1ru \u0161nek\u016f s jedn\u00edm chodem ve sm\u011bru pohonu). T_v\u00fdstup = 250 \u00d7 0,25 \u00d7 80 \u00d7 0,40 = 2 000 N\u00b7m. Pro ru\u010dn\u00ed ovl\u00e1d\u00e1n\u00ed dv\u011bma osobami (s prodlou\u017een\u00edm polom\u011bru kola nebo pou\u017eit\u00edm p\u0159enosn\u00e9ho prodlou\u017een\u00ed rukojeti) vyn\u00e1sobte pom\u011brem sil. V\u011bt\u0161ina zavla\u017eovac\u00edch bran vy\u017eaduje na v\u0159etenu 1 500 a\u017e 5 000 N\u00b7m \u2013 \u010deho\u017e lze dos\u00e1hnout standardn\u00edm ovl\u00e1d\u00e1n\u00edm ru\u010dn\u00edm kolem. Velk\u00e9 protipovod\u0148ov\u00e9 br\u00e1ny vy\u017eaduj\u00edc\u00ed v\u00edce ne\u017e 10 000 N\u00b7m mohou vy\u017eadovat p\u0159enosn\u00fd multiplik\u00e1tor s p\u0159evodovkou (ru\u010dn\u011b ovl\u00e1dan\u00fd reduktor 2:1 a\u017e 5:1 mezi ru\u010dn\u00edm kolem a \u0161nekov\u00fdm h\u0159\u00eddelem) nebo motorov\u00fd pohon se z\u00e1lo\u017en\u00edm zdrojem energie pro praktick\u00e9 ru\u010dn\u00ed ovl\u00e1d\u00e1n\u00ed v rozumn\u00e9m \u010dase.<\/p>\n<\/details>\n

\nOt\u00e1zka: Jak dlouho prodlu\u017euje katodick\u00e1 ochrana \u017eivotnost \u0161nekov\u00e9ho p\u0159evodu?<\/summary>\n

Spr\u00e1vn\u011b udr\u017eovan\u00e1 katodick\u00e1 ochrana (ob\u011btn\u00ed anody nebo p\u0159ilo\u017een\u00fd proud) \u00fa\u010dinn\u011b zastavuje elektrochemickou korozi \u2013 prodlu\u017euje \u017eivotnost \u0161nekov\u00e9ho ozuben\u00e9ho kola z 5 a\u017e 10 let (bez ochrany v brakick\u00e9\/mo\u0159sk\u00e9 vod\u011b) na 15 a\u017e 25 let. Ochrana funguje pouze tehdy, pokud anody maj\u00ed zb\u00fdvaj\u00edc\u00ed materi\u00e1l (ob\u011btn\u00ed anody) nebo je funk\u010dn\u00ed nap\u00e1jen\u00ed (p\u0159ilo\u017een\u00fd proud). Ob\u011btn\u00ed zinkov\u00e9 anody v brakick\u00e9 vod\u011b obvykle vydr\u017e\u00ed 3 a\u017e 5 let p\u0159ed v\u00fdm\u011bnou; v mo\u0159sk\u00e9 vod\u011b 2 a\u017e 3 roky. Ro\u010dn\u00ed n\u00e1klady na v\u00fdm\u011bnu anody (15 a\u017e 50 USD za sadu anod) jsou zanedbateln\u00e9 ve srovn\u00e1n\u00ed s n\u00e1klady na v\u00fdm\u011bnu \u0161nekov\u00e9ho ozuben\u00e9ho kola (700 a\u017e 15 000 USD v z\u00e1vislosti na \u00farovni pono\u0159en\u00ed a materi\u00e1lu). Katodick\u00e1 ochrana je investic\u00ed do \u00fadr\u017eby \u0161nekov\u00fdch ozuben\u00fdch kol pono\u0159en\u00fdch v uz\u00e1v\u011bru vody s nejvy\u0161\u0161\u00ed n\u00e1vratnost\u00ed investic.<\/p>\n<\/details>\n

\nOt\u00e1zka: M\u016f\u017ee \u0161nekov\u00fd p\u0159evod stavidla pou\u017e\u00edt v\u00edcechod\u00fd \u0161nek pro rychlej\u0161\u00ed pohyb stavidla?<\/summary>\n

V\u00edcechodov\u00fd \u0161nekov\u00fd p\u0159evod by zajistil rychlej\u0161\u00ed pohyb br\u00e1ny (vy\u0161\u0161\u00ed v\u00fdstupn\u00ed rychlost p\u0159i stejn\u00e9 rychlosti motoru), ale ztratil by samosvornost \u2013 tlak vody by br\u00e1nu p\u0159i zastaven\u00ed motoru posunul zp\u011bt do otev\u0159en\u00ed nebo zav\u0159en\u00ed. Vzhledem k tomu, \u017ee samosvorn\u00e9 udr\u017een\u00ed polohy je hlavn\u00edm d\u016fvodem pro pou\u017eit\u00ed \u0161nekov\u00e9ho p\u0159evodu v pohonech br\u00e1ny, v\u00edcechodov\u00e9 konfigurace se nepou\u017e\u00edvaj\u00ed. Rychlej\u0161\u00edho pohybu br\u00e1ny se dosahuje zv\u00fd\u0161en\u00edm ot\u00e1\u010dek motoru (pou\u017eit\u00edm 4p\u00f3lov\u00e9ho motoru m\u00edsto 6p\u00f3lov\u00e9ho nebo p\u0159id\u00e1n\u00edm zv\u00fd\u0161en\u00ed ot\u00e1\u010dek pomoc\u00ed frekven\u010dn\u00edho m\u011bni\u010de) sp\u00ed\u0161e ne\u017e zm\u011bnou geometrie \u0161neku. Omezen\u00ed samosvornosti znamen\u00e1, \u017ee v\u0161echny \u0161nekov\u00e9 p\u0159evody stavidel jsou jednochodov\u00e9 \u2013 toto je univerz\u00e1ln\u00ed pravidlo bez v\u00fdjimek v norm\u00e1ch pro vodohospod\u00e1\u0159skou infrastrukturu po cel\u00e9m sv\u011bt\u011b.<\/p>\n<\/details>\n

\nOt\u00e1zka: Jak\u00e9 mazivo by se m\u011blo pou\u017e\u00edt v p\u00e1ru \u0161nekov\u00fdch p\u0159evod\u016f pono\u0159en\u00fdch stavidel?<\/summary>\n

Pro instalace S1 a S2 (pono\u0159en\u00ed do vody a ob\u010dasn\u00e9 pono\u0159en\u00ed): lithn\u00e9 komplexn\u00ed mazivo pro n\u00e1mo\u0159n\u00ed \u00fa\u010dely s inhibitory koroze, NLGI 2. Prov\u00e1d\u011bjte ka\u017edoro\u010dn\u00ed maz\u00e1n\u00ed pomoc\u00ed maznice. Pro instalace S3 a S4 (trval\u00e9 pono\u0159en\u00ed do vody a tlakov\u00e9 pono\u0159en\u00ed): t\u011bleso je napln\u011bno olejem, nikoli maz\u00e1no \u2013 olej poskytuje lep\u0161\u00ed ochranu proti korozi pono\u0159en\u00fdch povrch\u016f a umo\u017e\u0148uje vyrovn\u00e1n\u00ed tlaku bez vzduchov\u00fdch mezer, kter\u00e9 zanech\u00e1v\u00e1 mazac\u00ed n\u00e1pl\u0148. Specifikace oleje je ISO VG 460 nebo 680 syntetick\u00fd PAG s antikorozn\u00edmi a protiopot\u0159ebovac\u00edmi aditivy ov\u011b\u0159en\u00fdmi pro specifick\u00e9 chemick\u00e9 slo\u017een\u00ed vody (sladk\u00e1, brakick\u00e1 nebo mo\u0159sk\u00e1 voda). V\u00fdm\u011bna oleje se prov\u00e1d\u00ed b\u011bhem interval\u016f \u00fadr\u017eby odvodn\u011bn\u00e9 vody (obvykle ka\u017ed\u00fdch 5 a\u017e 10 let u uz\u00e1v\u011br\u016f n\u00e1dr\u017e\u00ed, ro\u010dn\u011b u p\u0159\u00edlivov\u00fdch uz\u00e1v\u011br\u016f).<\/p>\n<\/details>\n<\/div>\n

<\/p>\n

\u0160nekov\u00e9 p\u0159evody stavidel a p\u0159ehradn\u00edch ventil\u016f pracuj\u00ed na extr\u00e9mn\u00edm konci spektra vystaven\u00ed vliv\u016fm prost\u0159ed\u00ed \u2013 od zavla\u017eovac\u00edch stavidel v z\u00f3n\u011b rozst\u0159iku vody a\u017e po trvale pono\u0159en\u00e9 v\u00fdpusti n\u00e1dr\u017e\u00ed a tlakov\u00e9 vodn\u00ed elektr\u00e1rny. Protokol pro vystaven\u00ed pono\u0159en\u00ed a z\u00e1plav\u00e1m klasifikuje instalace do \u010dty\u0159 \u00farovn\u00ed a ka\u017edou z nich mapuje na stupe\u0148 kryt\u00ed IP, ochranu proti korozi, typ t\u011bsn\u011bn\u00ed a katodickou ochranu, kter\u00e9 ur\u010duj\u00ed jak po\u010d\u00e1te\u010dn\u00ed n\u00e1klady, tak i n\u011bkolikaletou \u017eivotnost. Nouzov\u00e9 ru\u010dn\u00ed ovl\u00e1d\u00e1n\u00ed ru\u010dn\u00edm kolem nen\u00ed pohodlnou funkc\u00ed \u2013 je to o\u010dek\u00e1van\u00fd provozn\u00ed re\u017eim b\u011bhem povodn\u00ed, kdy je nejpravd\u011bpodobn\u011bj\u0161\u00ed selh\u00e1n\u00ed energetick\u00e9 infrastruktury. \u0158\u00edzen\u00ed klidov\u00e9ho stavu pomoc\u00ed \u010dtvrtletn\u00edho cvi\u010den\u00ed ru\u010dn\u00edho kola zabra\u0148uje korozn\u00edmu spojen\u00ed, kter\u00e9 v nejhor\u0161\u00edm mo\u017en\u00e9m okam\u017eiku prom\u011bn\u00ed funk\u010dn\u00ed \u0161nekov\u00fd p\u0159evod v zad\u0159en\u00fd mechanismus. Pro provozovatele vodohospod\u00e1\u0159sk\u00e9 infrastruktury je \u0161nekov\u00fd p\u0159evod mechanick\u00fdm srdcem pohonu stavidla \u2013 a jeho specifikace, ochrana a \u00fadr\u017eba ur\u010duj\u00ed, zda se stavidlo otev\u00edr\u00e1, kdy\u017e doraz\u00ed povode\u0148.<\/p>\n

Pro vodohospod\u00e1\u0159sk\u00e9 infrastrukturn\u00ed firmy a v\u00fdrobce pohon\u016f uz\u00e1v\u011br\u016f na\u0161e technick\u00e9 odd\u011blen\u00ed klasifikuje \u00farove\u0148 ponoru a doporu\u010duje materi\u00e1l, t\u011bsn\u011bn\u00ed a sadu katodick\u00e9 ochrany. Standardn\u00ed katalog \u0161nekov\u00e9 p\u0159evodovky pro vysok\u00e9 zat\u00ed\u017een\u00ed<\/a> Velikosti pohon\u016f vrat zakryjte s rozte\u010d\u00ed st\u0159edu od 100 do 250 mm s ochrann\u00fdmi bal\u00ed\u010dky S1 a\u017e S3. Ode\u0161lete Specifikace pohonu stavidla<\/a> s rozm\u011bry uz\u00e1v\u011bru, vodn\u00ed v\u00fd\u0161kou, typem vody a \u00farovn\u00ed ponoru instalace.<\/p>\n

<\/p>\n

\n

Specifikace p\u00e1r\u016f \u0161nekov\u00fdch p\u0159evod\u016f pro stavidla nebo p\u0159ehradn\u00ed ventily?<\/h3>\n

Za\u0161lete rozm\u011bry uz\u00e1v\u011bru, sp\u00e1dovou v\u00fd\u0161ku, typ vody (sladk\u00e1, brakick\u00e1, mo\u0159sk\u00e1), v\u00fd\u0161ku ponoru p\u0159i instalaci a zda je vy\u017eadov\u00e1no ru\u010dn\u00ed ovl\u00e1d\u00e1n\u00ed nebo z\u00e1lo\u017en\u00ed nap\u00e1jen\u00ed z baterie. Za\u0159ad\u00edme protokol ponoru a doporu\u010d\u00edme materi\u00e1l, t\u011bsn\u011bn\u00ed a sadu katodick\u00e9 ochrany.<\/p>\n

Vy\u017e\u00e1dejte si specifikaci pohonu br\u00e1ny \u2192<\/a><\/p>\n<\/div>\n

St\u0159iha\u010d: Cxm<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Korea Ever-Power \u00b7 Application Engineering Guide Worm and Worm Wheel for Sluice Gate and Dam Valve Actuators A flood control sluice gate on a Korean river holds 4 metres of water head \u2014 40 kN of hydrostatic force per metre of gate width \u2014 against a worm gear pair that may sit motionless for 11 […]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[2821],"tags":[],"class_list":["post-1367","post","type-post","status-publish","format-standard","hentry","category-worm-and-worm-wheel"],"_links":{"self":[{"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/posts\/1367","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/comments?post=1367"}],"version-history":[{"count":2,"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/posts\/1367\/revisions"}],"predecessor-version":[{"id":1369,"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/posts\/1367\/revisions\/1369"}],"wp:attachment":[{"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/media?parent=1367"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/categories?post=1367"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/worm-and-worm-wheel.com\/cs\/wp-json\/wp\/v2\/tags?post=1367"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}