{"id":1468,"date":"2025-04-03T13:42:11","date_gmt":"2025-04-03T05:42:11","guid":{"rendered":"https:\/\/www.tflequip.com\/?p=1468"},"modified":"2025-05-19T15:33:17","modified_gmt":"2025-05-19T07:33:17","slug":"what-is-the-self-priming-height-and-suction-height-of-a-self-priming-pump","status":"publish","type":"post","link":"https:\/\/www.tflequip.com\/cs\/what-is-the-self-priming-height-and-suction-height-of-a-self-priming-pump\/","title":{"rendered":"Jak\u00e1 je samonas\u00e1vac\u00ed v\u00fd\u0161ka a sac\u00ed v\u00fd\u0161ka samonas\u00e1vac\u00edho \u010derpadla?"},"content":{"rendered":"

1. Samonas\u00e1vac\u00ed v\u00fd\u0161ka<\/strong>
\nJedn\u00e1 se o svislou vzd\u00e1lenost od st\u0159edu ob\u011b\u017en\u00e9ho kola vodn\u00edho \u010derpadla k povrchu kapaliny. Ur\u010duj\u00edc\u00edm faktorem je velikost z\u00e1sobn\u00edho prostoru pro kapalinu p\u0159i n\u00e1vrhu \u010derpadla. \u010c\u00edm v\u011bt\u0161\u00ed je z\u00e1sobn\u00ed prostor pro kapalinu, t\u00edm v\u00edce chladic\u00ed vody m\u016f\u017ee b\u00fdt p\u0159ivedeno do mechanick\u00e9 ucp\u00e1vky a t\u00edm v\u00edce \u010derpadlo snese such\u00fd provoz b\u011bhem samonas\u00e1v\u00e1n\u00ed. Podobn\u011b plat\u00ed, \u017ee \u010d\u00edm del\u0161\u00ed je doba provozu na sucho, t\u00edm v\u00edce vzduchu se vypou\u0161t\u00ed a t\u00edm vy\u0161\u0161\u00ed je samonas\u00e1vac\u00ed v\u00fd\u0161ka. Obecn\u011b plat\u00ed, \u017ee doba provozu mechanick\u00e9 ucp\u00e1vky na sucho nesm\u00ed p\u0159ekro\u010dit 30 s, ale samonas\u00e1vac\u00ed \u010derpadlo ji m\u016f\u017ee udr\u017eet do 3 min. Samonas\u00e1vac\u00ed v\u00fd\u0161ka je obvykle do 3 m.<\/p>\n

2. Sac\u00ed v\u00fd\u0161ka<\/strong>
\nSac\u00ed v\u00fd\u0161ka se tak\u00e9 naz\u00fdv\u00e1 sac\u00ed zdvih vodn\u00edho \u010derpadla nebo po\u017eadovan\u00e1 kavita\u010dn\u00ed rezerva \u25b3h. Vzorec pro v\u00fdpo\u010det je n\u00e1sleduj\u00edc\u00ed: \u25b3h=10,33 m vodn\u00edho sloupce atmosf\u00e9rick\u00e9ho tlaku - kavita\u010dn\u00ed rezerva \u010derpadla - ztr\u00e1ty v potrub\u00ed atd. Ve vzorci je 10,33 m standardn\u00ed atmosf\u00e9rick\u00fd tlak (hladina mo\u0159e). Pokud se nach\u00e1z\u00ed v oblasti s vysokou nadmo\u0159skou v\u00fd\u0161kou, tlak se sn\u00ed\u017e\u00ed a sn\u00ed\u017e\u00ed se i sac\u00ed v\u00fd\u0161ka. Kavita\u010dn\u00ed rezerva je \u00fadaj, kter\u00fd byl vytvo\u0159en b\u011bhem procesu n\u00e1vrhu \u010derpadla, co\u017e je obecn\u011b dan\u00e1 hodnota. Ztr\u00e1ty v potrub\u00ed atd. se obvykle berou jako 0,5 m a tato hodnota zahrnuje tak\u00e9 bezpe\u010dnostn\u00ed rezervu.<\/p>\n

\".png\"<\/p>\n

Bezpe\u010dnostn\u00ed opat\u0159en\u00ed p\u0159i instalaci:<\/strong>
\n1. V\u00fdstupn\u00ed potrub\u00ed mus\u00ed z\u016fstat voln\u00e9 a je t\u0159eba v\u011bnovat zvl\u00e1\u0161tn\u00ed pozornost tomu, aby nebyl instalov\u00e1n zp\u011btn\u00fd ventil. Pokud mus\u00ed b\u00fdt instalov\u00e1n, nainstalujte mezi zp\u011btn\u00fd ventil a v\u00fdstup \u010derpadla obtokov\u00fd ventil pro v\u00fdfuk. Kdy\u017e je v\u00fdfukov\u00fd ventil bez vody, zav\u0159ete jej, aby fungoval norm\u00e1ln\u011b.
\n2. Vzd\u00e1lenost paraleln\u00edho potrub\u00ed \u010derpadla nesm\u00ed b\u00fdt v\u011bt\u0161\u00ed ne\u017e 0,5 metru, jinak to ovlivn\u00ed i samonas\u00e1vac\u00ed v\u00fd\u0161ku, proto\u017ee vzduch v paraleln\u00edm potrub\u00ed mus\u00ed samonas\u00e1vac\u00ed \u010derpadlo vypustit i p\u0159i chodu napr\u00e1zdno.
\n3. Vstupn\u00ed p\u0159ipojovac\u00ed potrub\u00ed \u010derpadla mus\u00ed b\u00fdt zcela ut\u011bsn\u011bno a nesm\u00ed doj\u00edt k \u00faniku vzduchu, zejm\u00e9na u sva\u0159ovac\u00edch potrub\u00ed, kde je obzvl\u00e1\u0161t\u011b snadn\u00e9 ignorovat polohu sva\u0159ovac\u00ed jizvy.<\/p>","protected":false},"excerpt":{"rendered":"

1. Self-priming height It refers to the vertical distance from the center of the water pump impeller to the liquid surface. The determining factor is the size of the liquid storage cavity during the design process of the pump. The larger the liquid storage cavity, the more cooling water can be provided to the mechanical […]<\/p>","protected":false},"author":4,"featured_media":1489,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[36],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/www.tflequip.com\/cs\/wp-json\/wp\/v2\/posts\/1468"}],"collection":[{"href":"https:\/\/www.tflequip.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tflequip.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tflequip.com\/cs\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tflequip.com\/cs\/wp-json\/wp\/v2\/comments?post=1468"}],"version-history":[{"count":0,"href":"https:\/\/www.tflequip.com\/cs\/wp-json\/wp\/v2\/posts\/1468\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.tflequip.com\/cs\/wp-json\/wp\/v2\/media\/1489"}],"wp:attachment":[{"href":"https:\/\/www.tflequip.com\/cs\/wp-json\/wp\/v2\/media?parent=1468"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tflequip.com\/cs\/wp-json\/wp\/v2\/categories?post=1468"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tflequip.com\/cs\/wp-json\/wp\/v2\/tags?post=1468"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}