{"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\/sk\/what-is-the-self-priming-height-and-suction-height-of-a-self-priming-pump\/","title":{"rendered":"Ak\u00e1 je samonas\u00e1vacia v\u00fd\u0161ka a sacia v\u00fd\u0161ka samonas\u00e1vacieho \u010derpadla?"},"content":{"rendered":"

1. V\u00fd\u0161ka samonas\u00e1vania<\/strong>
\nIde o vertik\u00e1lnu vzdialenos\u0165 od stredu obe\u017en\u00e9ho kolesa vodn\u00e9ho \u010derpadla k povrchu kvapaliny. Ur\u010duj\u00facim faktorom je ve\u013ekos\u0165 dutiny na uskladnenie kvapaliny po\u010das procesu n\u00e1vrhu \u010derpadla. \u010c\u00edm v\u00e4\u010d\u0161ia je dutina na uskladnenie kvapaliny, t\u00fdm viac chladiacej vody mo\u017eno doda\u0165 mechanick\u00e9mu tesneniu a t\u00fdm viac \u010derpadlo znesie such\u00fa prev\u00e1dzku po\u010das samonas\u00e1vania. Podobne, \u010d\u00edm dlh\u0161\u00ed je \u010das suchej prev\u00e1dzky, t\u00fdm viac vzduchu sa vypust\u00ed a t\u00fdm vy\u0161\u0161ia je v\u00fd\u0161ka samonas\u00e1vania. V\u0161eobecne plat\u00ed, \u017ee \u010das suchej prev\u00e1dzky mechanick\u00e9ho tesnenia nem\u00f4\u017ee presiahnu\u0165 30 s, ale samonas\u00e1vacie \u010derpadlo ho dok\u00e1\u017ee udr\u017ea\u0165 do 3 min. Samonas\u00e1vacia v\u00fd\u0161ka je vo v\u0161eobecnosti do 3 m.<\/p>\n

2. Sacia v\u00fd\u0161ka<\/strong>
\nSacia v\u00fd\u0161ka sa naz\u00fdva aj sac\u00ed zdvih vodn\u00e9ho \u010derpadla alebo po\u017eadovan\u00e1 kavita\u010dn\u00e1 rezerva \u25b3h. Vzorec pre v\u00fdpo\u010det je: \u25b3h=10,33 m vodn\u00e9ho st\u013apca s atmosf\u00e9rick\u00fdm tlakom - kavita\u010dn\u00e1 rezerva \u010derpadla - straty v potrub\u00ed at\u010f. Vo vzorci je 10,33 m \u0161tandardn\u00fd atmosf\u00e9rick\u00fd tlak (hladina mora). Ak sa nach\u00e1dza v oblasti s vysokou nadmorskou v\u00fd\u0161kou, tlak sa zn\u00ed\u017ei a zn\u00ed\u017ei sa aj sacia v\u00fd\u0161ka. Kavita\u010dn\u00e1 rezerva je \u00fadaj, ktor\u00fd bol vytvoren\u00fd po\u010das procesu n\u00e1vrhu \u010derpadla, \u010do je vo v\u0161eobecnosti dan\u00e1 hodnota. Straty v potrub\u00ed at\u010f. sa zvy\u010dajne ber\u00fa ako 0,5 m a t\u00e1to hodnota zah\u0155\u0148a aj bezpe\u010dnostn\u00fa rezervu.<\/p>\n

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

Bezpe\u010dnostn\u00e9 opatrenia pri in\u0161tal\u00e1cii:<\/strong>
\n1. V\u00fdstupn\u00e9 potrubie mus\u00ed by\u0165 bez prek\u00e1\u017eok a osobitn\u00fa pozornos\u0165 treba venova\u0165 tomu, aby nebol nain\u0161talovan\u00fd sp\u00e4tn\u00fd ventil. Ak sa mus\u00ed nain\u0161talova\u0165, nain\u0161talujte obtokov\u00fd ventil medzi sp\u00e4tn\u00fd ventil a v\u00fdstup \u010derpadla na v\u00fdfuk. Ke\u010f je v\u00fdfukov\u00fd ventil bez vody, zatvorte ho, aby fungoval norm\u00e1lne.
\n2. Vzdialenos\u0165 paraleln\u00e9ho potrubia \u010derpadla nesmie prekro\u010di\u0165 0,5 metra, inak to ovplyvn\u00ed aj v\u00fd\u0161ku samonas\u00e1vania, preto\u017ee vzduch v paralelnom potrub\u00ed mus\u00ed samonas\u00e1vacie \u010derpadlo vyp\u00fa\u0161\u0165a\u0165 aj pri chode napr\u00e1zdno.
\n3. Pr\u00edpojn\u00e9 potrubie na vstupe do \u010derpadla mus\u00ed by\u0165 \u00faplne utesnen\u00e9 a nesmie do neho unikn\u00fa\u0165 \u017eiadny vzduch, najm\u00e4 v pr\u00edpade zv\u00e1rac\u00edch potrub\u00ed, kde je obzvl\u00e1\u0161\u0165 \u013eahk\u00e9 ignorova\u0165 polohu zv\u00e1racej jazvy.<\/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\/sk\/wp-json\/wp\/v2\/posts\/1468"}],"collection":[{"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/comments?post=1468"}],"version-history":[{"count":0,"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/posts\/1468\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/media\/1489"}],"wp:attachment":[{"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/media?parent=1468"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/categories?post=1468"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/tags?post=1468"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}