{"id":6067,"date":"2022-10-27T16:44:11","date_gmt":"2022-10-27T14:44:11","guid":{"rendered":"https:\/\/firebox.com.ua\/?p=6067"},"modified":"2022-10-27T16:44:11","modified_gmt":"2022-10-27T14:44:11","slug":"obzor-kakoj-vybrat-nasos-dlya-kotla","status":"publish","type":"post","link":"https:\/\/firebox.com.ua\/cs\/obzor-kakoj-vybrat-nasos-dlya-kotla\/","title":{"rendered":"Jak\u00e9 \u010derpadlo ke kotli vybrat: p\u0159ehled typ\u016f a zna\u010dek. \u010c\u00e1st 2"},"content":{"rendered":"<h1>Jak\u00e9 \u010derpadlo zvolit do kotle? V\u0161e z\u00e1vis\u00ed na va\u0161em projektu<\/h1>\n<p>Pokud jde o projekt topn\u00e9ho syst\u00e9mu, samoz\u0159ejm\u011b vyvst\u00e1v\u00e1 ot\u00e1zka, jak\u00e9 \u010derpadlo ke kotli zvolit. \u00dadaje o \u010derpadlech jsou shroma\u017e\u010fov\u00e1ny ve speci\u00e1ln\u00edch kataloz\u00edch v\u00fdrobc\u016f, kter\u00e9 zjednodu\u0161uj\u00ed v\u00fdb\u011br nejen pro jedine\u010dn\u00e9 kvality, ale tak\u00e9 pro dan\u00fd v\u00fdkon a tlak, kter\u00fd mus\u00ed \u010derpadlo vytvo\u0159it. V souladu s po\u010dtem ot\u00e1\u010dek se zohled\u0148uje tak\u00e9 v\u00fdkon motoru. Pro pochopen\u00ed problematiky v\u011bnujme trochu pozornosti typ\u016fm \u010derpadel a porovnejme je mezi sebou.<\/p>\n<p>&nbsp;<\/p>\n<h2>Typy \u010derpadel a pou\u017eit\u00ed<\/h2>\n<p>P\u0159i prodeji se ka\u017ed\u00fd z n\u00e1s setkal s velk\u00fdm mno\u017estv\u00edm \u010derpadel, ani\u017e by p\u0159em\u00fd\u0161lel o rozsahu a zp\u016fsobu p\u016fsoben\u00ed. Mezit\u00edm tyto vlastnosti v\u00fdrazn\u011b ovliv\u0148uj\u00ed vlastnosti provozu tohoto za\u0159\u00edzen\u00ed. Nejb\u011b\u017en\u011bj\u0161\u00ed jsou odst\u0159ediv\u00e1 \u010derpadla. Ve srovn\u00e1n\u00ed s p\u00edsty maj\u00ed n\u00e1sleduj\u00edc\u00ed v\u00fdhody:<\/p>\n<ul>\n<li>kompaktn\u00ed t\u011blo;<\/li>\n<li>Rychlost;<\/li>\n<li>p\u0159ipojen\u00ed k elektromotoru;<\/li>\n<li>vysok\u00fd v\u00fdkon;<\/li>\n<li>jednotn\u00e1 pr\u00e1ce;<\/li>\n<li>jednoduchost designu, kter\u00e1 umo\u017e\u0148uje jeho v\u00fdrobu z chemicky odoln\u00fdch materi\u00e1l\u016f, kter\u00e9 se obt\u00ed\u017en\u011b zpracov\u00e1vaj\u00ed;<\/li>\n<li>\u010derp\u00e1n\u00ed kapalin s ne\u010distotami bez ovlivn\u011bn\u00ed provozu \u010derpadla;<\/li>\n<li>snadn\u00e1 instalace na lehk\u00fd z\u00e1klad.<\/li>\n<\/ul>\n<p>Tyto vlastnosti ur\u010duj\u00ed p\u0159evl\u00e1daj\u00edc\u00ed pou\u017eit\u00ed odst\u0159ediv\u00fdch \u010derpadel v chemick\u00e9m pr\u016fmyslu. A pokud mluv\u00edme o \u00fa\u010dinnosti, pak je tento indik\u00e1tor pro odst\u0159ediv\u00e1 \u010derpadla 75-90% a pro p\u00edstov\u00e1 \u010derpadla - 65-85%, co\u017e je v\u00fdrazn\u011b ni\u017e\u0161\u00ed. M\u011bjte v\u0161ak na pam\u011bti, \u017ee \u010derpadla mal\u00e9ho a st\u0159edn\u00edho v\u00fdkonu s odst\u0159ediv\u00fdm za\u0159\u00edzen\u00edm maj\u00ed ni\u017e\u0161\u00ed \u00fa\u010dinnost, asi o 10-15%, tak\u017ee ve srovn\u00e1n\u00ed s p\u00edstov\u00fdmi \u010derpadly moc nevyhraj\u00ed. To je typick\u00e9 pro cirkula\u010dn\u00ed verze a je d\u016fle\u017eit\u00e9, pokud ke kotli vyb\u00edr\u00e1te \u010derpadlo.<\/p>\n<p>Pokles \u00fa\u010dinnosti je spojen s konstruk\u010dn\u00edmi prvky, kter\u00e9 se zvl\u00e1\u0161t\u011b dob\u0159e projevuj\u00ed p\u0159i \u010derp\u00e1n\u00ed vysoce visk\u00f3zn\u00edch kapalin. P\u0159esto\u017ee chladic\u00ed kapaliny propylenglykolu a glycerinu nelze nazvat vysokovisk\u00f3zn\u00edmi, levn\u00e1 \u010derpadla pro tento typ kotl\u016f se budou vyzna\u010dovat ztr\u00e1tou \u00fa\u010dinnosti v d\u016fsledku konstruk\u010dn\u00edch nedostatk\u016f. To je zp\u016fsobeno tvorbou v\u00edru v bl\u00edzkosti okraj\u016f lopatek rotuj\u00edc\u00edho kola a tak\u00e9 p\u0159epadem mezi sac\u00ed a v\u00fdtla\u010dnou dutinou v d\u016fsledku velk\u00fdch mezer. Takov\u00e9 \u010derpadlo pro kotel FOCUS skryje v\u00fdhody jemn\u00e9ho dolad\u011bn\u00ed teploty chladic\u00ed kapaliny.<\/p>\n<h3>Oblasti pou\u017eit\u00ed<\/h3>\n<p>Odst\u0159ediv\u00e1 \u010derpadla \u010derpaj\u00ed pom\u011brn\u011b n\u00edzk\u00e9 tlaky, tak\u017ee by se nem\u011bla kupovat pro komun\u00e1ln\u00ed topn\u00e9 syst\u00e9my v bytov\u00fdch domech. Je tak\u00e9 mo\u017en\u00e9 sn\u00ed\u017eit \u00fa\u010dinnost v d\u016fsledku zv\u00fd\u0161en\u00e9ho odporu s\u00edt\u011b a dal\u0161\u00edch probl\u00e9m\u016f. \u010cerpadla pro topn\u00fd kotel, kter\u00fd dod\u00e1v\u00e1 chladivo z tepeln\u00e9 elektr\u00e1rny, by m\u011bla b\u00fdt nakupov\u00e1na pouze od renomovan\u00fdch v\u00fdrobc\u016f, kte\u0159\u00ed vylep\u0161uj\u00ed tradi\u010dn\u00ed konstrukce odst\u0159ediv\u00fdch \u010derpadel.<\/p>\n<p>P\u00edstov\u00e1 \u010derpadla se nedoporu\u010duj\u00ed pro mal\u00e9 pr\u016ftoky a pot\u0159ebu \u010derpat vysok\u00fd tlak (50-1000 atmosf\u00e9r). Tak\u00e9 \u0161patn\u011b manipuluj\u00ed s visk\u00f3zn\u00edmi kapalinami a nepou\u017e\u00edvaj\u00ed se pro v\u00fdbu\u0161n\u00e9 sm\u011bsi.<\/p>\n<p>Pro syst\u00e9my, kter\u00e9 vy\u017eaduj\u00ed dod\u00e1vku kapaliny do 1500 m3 \/ min, ale malou dopravn\u00ed v\u00fd\u0161ku do asi 10-15 m, se pou\u017e\u00edvaj\u00ed \u010derpadla vrtulov\u00e9. Vyzna\u010duj\u00ed se maxim\u00e1ln\u00ed hydraulickou \u00fa\u010dinnost\u00ed, kompaktn\u00edmi rozm\u011bry a v\u00fdkonem. Pou\u017e\u00edvaj\u00ed se tak\u00e9 pro \u010derp\u00e1n\u00ed kontaminovan\u00fdch m\u00e9di\u00ed a krystaliza\u010dn\u00edch sm\u011bs\u00ed.<\/p>\n<p>Pro visk\u00f3zn\u00ed kapaliny, paliva a ropn\u00e9 produkty se doporu\u010duj\u00ed \u0161roubov\u00e1 \u010derpadla. Dod\u00e1vky kapaliny typicky odpov\u00eddaj\u00ed 300 m3\/h p\u0159i tlac\u00edch a\u017e 175 atmosf\u00e9r a rychlosti ot\u00e1\u010den\u00ed 3000 ot.\/min. Tento typ \u010derpadla pracuje ti\u0161e, je kompaktn\u00ed a nem\u011bn\u00ed v\u00fdkon se zm\u011bnami tlaku. \u00da\u010dinnost je 75-80%.<\/p>\n<p>Pro vysoce visk\u00f3zn\u00ed roztoky, v\u010detn\u011b tekut\u00fdch plast\u016f, se pou\u017e\u00edvaj\u00ed verze s jedn\u00edm \u0161roubem. Z hlediska n\u00e1klad\u016f a v\u00fdkonu jsou podobn\u00e1 odst\u0159ediv\u00fdm \u010derpadl\u016fm, ale jsou ekonomi\u010dt\u011bj\u0161\u00ed p\u0159i tlac\u00edch nad 10 atmosf\u00e9r. Pro tyto \u00fa\u010dely se p\u0159i vysok\u00fdch tlac\u00edch pou\u017e\u00edvaj\u00ed zubov\u00e1 \u010derpadla, kter\u00e1 efektivn\u011b pracuj\u00ed s mal\u00fdmi z\u00e1sobami vody.<\/p>\n<p>Lamelov\u00e1 \u010derpadla se pou\u017e\u00edvaj\u00ed pro \u010dist\u00e9 kapaliny p\u0159i m\u00edrn\u00e9m tlaku. Pro vysok\u00e9 dopravn\u00ed v\u00fd\u0161ky do 250 m a n\u00edzk\u00e9 pr\u016ftoky do 40 m3\/h se pou\u017e\u00edvaj\u00ed v\u00ed\u0159iv\u00e1 \u010derpadla. Se v\u0161emi v\u00fdhodami \u00fa\u010dinnost tohoto typu nep\u0159esahuje 50%.<\/p>\n<h2>Kotlov\u00e9 \u010derpadlo<\/h2>\n<p>Kdy\u017e se pod\u00edv\u00e1me trochu dop\u0159edu, ujasn\u011bme si, \u017ee pro organizaci cirkulace v uzav\u0159en\u00fdch topn\u00fdch syst\u00e9mech. Ob\u011bhov\u00e1 \u010derpadla jsou verz\u00ed odst\u0159ediv\u00e9ho \u010derpadla, kter\u00e9 trp\u00ed poklesem tlaku p\u0159i \u010derp\u00e1n\u00ed visk\u00f3zn\u00edch kapalin a m\u00e1 \u0159adu konstruk\u010dn\u00edch probl\u00e9m\u016f.<\/p>\n<p>V tomto ohledu m\u00e1 smysl vybrat tento prvek topn\u00e9ho syst\u00e9mu se zvl\u00e1\u0161tn\u00ed pozornost\u00ed v z\u00e1vislosti na jeho vlastnostech. Nev\u00fdhody se zpravidla neobjevuj\u00ed na mal\u00fdch okruz\u00edch se sch\u00e9matem instalace kolektoru, ale jsou ji\u017e poci\u0165ov\u00e1ny u jednookruhov\u00fdch syst\u00e9m\u016f a p\u0159i pou\u017eit\u00ed chladic\u00edch kapalin s p\u0159\u00eddavkem visk\u00f3zn\u00edch kapalin. Ob\u011bhov\u00e1 \u010derpadla levn\u00e9ho segmentu mohou b\u00fdt tak\u00e9 citliv\u00e1 na zne\u010di\u0161t\u011bn\u00ed \u010derpan\u00e9 kapaliny a dal\u0161\u00ed nedostatky, ale obecn\u011b se vyzna\u010duj\u00ed stabiln\u00edm v\u00fdkonem a spolehliv\u00fdm provozem.<\/p>\n<p>Doporu\u010dujeme pou\u017e\u00edt pro instalaci topn\u00e9ho syst\u00e9mu <a href=\"https:\/\/teplo-klimat.com.ua\/imp-pumps-ru.html\" rel=\"nofollow noopener\" target=\"_blank\"><strong>\u010derpadla<\/strong><\/a>testov\u00e1no p\u0159i pr\u00e1ci <a href=\"\/cs\/product-category\/tverdotoplivnye-kotly-dlya-gorelok\/\"><strong>kotle na tuh\u00e1 paliva FOCUS<\/strong><\/a>.<\/p>\n<p><iframe loading=\"lazy\" title=\"V\u00fdb\u011br \u010derpadla pro vyt\u00e1p\u011bn\u00ed, jednoduch\u00fd rychl\u00fd v\u00fdpo\u010det. Hydraulika topen\u00ed a ot\u00e1\u010dky \u010derpadla.\" width=\"1020\" height=\"574\" src=\"https:\/\/www.youtube.com\/embed\/1G-fX1lMr_s?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe><\/p>","protected":false},"excerpt":{"rendered":"<p>\u041a\u0430\u043a\u043e\u0439 \u0432\u044b\u0431\u0440\u0430\u0442\u044c \u043d\u0430\u0441\u043e\u0441 \u0434\u043b\u044f \u043a\u043e\u0442\u043b\u0430? \u0412\u0441\u0435 \u0437\u0430\u0432\u0438\u0441\u0438\u0442 \u043e\u0442 \u0432\u0430\u0448\u0435\u0433\u043e \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u041a\u043e\u0433\u0434\u0430 \u0440\u0435\u0447\u044c \u0437\u0430\u0445\u043e\u0434\u0438\u0442 \u043e \u043f\u0440\u043e\u0435\u043a\u0442\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u043e\u0442\u043e\u043f\u043b\u0435\u043d\u0438\u044f, \u0431\u0435\u0437\u0443\u0441\u043b\u043e\u0432\u043d\u043e, \u0432\u043e\u0437\u043d\u0438\u043a\u0430\u0435\u0442 \u0432\u043e\u043f\u0440\u043e\u0441, \u043a\u0430\u043a\u043e\u0439 \u0432\u044b\u0431\u0440\u0430\u0442\u044c \u043d\u0430\u0441\u043e\u0441 \u0434\u043b\u044f \u043a\u043e\u0442\u043b\u0430. \u0414\u0430\u043d\u043d\u044b\u0435 \u043e \u043d\u0430\u0441\u043e\u0441\u0430\u0445 \u0441\u043e\u0431\u0440\u0430\u043d\u044b \u0432 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u044b\u0435 \u043a\u0430\u0442\u0430\u043b\u043e\u0433\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u0439, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0443\u043f\u0440\u043e\u0449\u0430\u044e\u0442 \u0432\u044b\u0431\u043e\u0440 \u043d\u0435 \u0442\u043e\u043b\u044c\u043a\u043e \u043f\u043e \u0443\u043d\u0438\u043a\u0430\u043b\u044c\u043d\u044b\u043c \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0430\u043c, \u043d\u043e \u0438 \u043f\u043e \u0437\u0430\u0434\u0430\u043d\u043d\u043e\u0439 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0438 \u043d\u0430\u043f\u043e\u0440\u0443, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0434\u043e\u043b\u0436\u0435\u043d \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u0442\u044c \u043d\u0430\u0441\u043e\u0441. \u0423\u0447\u0438\u0442\u044b\u0432\u0430\u0435\u0442\u0441\u044f \u0438 \u043c\u043e\u0449\u043d\u043e\u0441\u0442\u044c [&#8230;]\n","protected":false},"author":1,"featured_media":8839,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[4,20],"tags":[],"class_list":["post-6067","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kak-vybrat-kotel","category-tehnologii-otopleniya"],"_links":{"self":[{"href":"https:\/\/firebox.com.ua\/cs\/wp-json\/wp\/v2\/posts\/6067","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/firebox.com.ua\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/firebox.com.ua\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/firebox.com.ua\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/firebox.com.ua\/cs\/wp-json\/wp\/v2\/comments?post=6067"}],"version-history":[{"count":0,"href":"https:\/\/firebox.com.ua\/cs\/wp-json\/wp\/v2\/posts\/6067\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/firebox.com.ua\/cs\/wp-json\/wp\/v2\/media\/8839"}],"wp:attachment":[{"href":"https:\/\/firebox.com.ua\/cs\/wp-json\/wp\/v2\/media?parent=6067"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/firebox.com.ua\/cs\/wp-json\/wp\/v2\/categories?post=6067"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/firebox.com.ua\/cs\/wp-json\/wp\/v2\/tags?post=6067"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}