{"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\/da\/what-is-the-self-priming-height-and-suction-height-of-a-self-priming-pump\/","title":{"rendered":"Hvad er selvansugende h\u00f8jde og sugeh\u00f8jde for en selvansugende pumpe?"},"content":{"rendered":"<p><strong>1. Selvansugende h\u00f8jde<\/strong><br \/>\nDet refererer til den lodrette afstand fra midten af vandpumpens l\u00f8behjul til v\u00e6skeoverfladen. Den afg\u00f8rende faktor er st\u00f8rrelsen p\u00e5 v\u00e6skeopbevaringsrummet under pumpens designproces. Jo st\u00f8rre v\u00e6skeopbevaringsrummet er, desto mere k\u00f8levand kan der tilf\u00f8res den mekaniske t\u00e6tning, og desto mere kan pumpen t\u00e5le t\u00f8r drift under selvansugning. P\u00e5 samme m\u00e5de g\u00e6lder det, at jo l\u00e6ngere den t\u00f8rre driftstid er, desto mere luft udledes, og desto h\u00f8jere er selvansugningsh\u00f8jden. Generelt kan den mekaniske t\u00e6tnings t\u00f8rre driftstid ikke overstige 30 sekunder, men den selvansugende pumpe kan opretholde den inden for 3 minutter. Den selvansugende h\u00f8jde er generelt inden for 3 m.<\/p>\n<p><strong>2. Sugeh\u00f8jde<\/strong><br \/>\nSugeh\u00f8jden kaldes ogs\u00e5 for vandpumpens sugeslag eller den n\u00f8dvendige kavitationsmargen \u25b3h. Beregningsformlen er: \u25b3h = 10,33 m atmosf\u00e6risk trykvands\u00f8jle - pumpens kavitationsmargen - r\u00f8rledningstab osv. I formlen er 10,33 m det almindelige atmosf\u00e6riske tryk (havniveau). Hvis det er i et h\u00f8jtliggende omr\u00e5de, vil trykket falde, og sugeh\u00f8jden vil ogs\u00e5 falde. Kavitationsmargenen er et data, der er blevet dannet under pumpens designproces, og som generelt er en given v\u00e6rdi. R\u00f8rledningstab osv. antages generelt at v\u00e6re 0,5 m, og denne v\u00e6rdi inkluderer ogs\u00e5 en sikkerhedsmargin.<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-1469\" title=\".png\" src=\"https:\/\/www.tflequip.com\/wp-content\/uploads\/2025\/04\/-e1743658524442-300x217.png\" alt=\".png\" width=\"300\" height=\"217\" \/><\/p>\n<p><strong>Forholdsregler ved installation:<\/strong><br \/>\n1. Udl\u00f8bsr\u00f8rledningen skal holdes uhindret, og man skal v\u00e6re s\u00e6rlig opm\u00e6rksom p\u00e5 ikke at installere en kontraventil. Hvis det er n\u00f8dvendigt, skal du installere en bypass-ventil mellem kontraventilen og pumpens udl\u00f8b til udst\u00f8dning. N\u00e5r udst\u00f8dningsventilen er tom for vand, skal den lukkes for at fungere normalt.<br \/>\n2. Pumpens parallelle r\u00f8rledningsafstand m\u00e5 ikke overstige 0,5 meter, ellers vil det ogs\u00e5 p\u00e5virke den selvansugende h\u00f8jde, fordi luften i den parallelle r\u00f8rledning ogs\u00e5 skal udledes af den selvansugende pumpe, n\u00e5r den k\u00f8rer tom.<br \/>\n3. R\u00f8rledningen til pumpeindl\u00f8bet skal v\u00e6re helt t\u00e6t, og der m\u00e5 ikke v\u00e6re nogen luftl\u00e6kage, is\u00e6r ikke ved svejser\u00f8rledninger, hvor svejsearrets position er s\u00e6rlig let at ignorere.<\/p>","protected":false},"excerpt":{"rendered":"<p>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 [&hellip;]<\/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\/da\/wp-json\/wp\/v2\/posts\/1468"}],"collection":[{"href":"https:\/\/www.tflequip.com\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tflequip.com\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tflequip.com\/da\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tflequip.com\/da\/wp-json\/wp\/v2\/comments?post=1468"}],"version-history":[{"count":0,"href":"https:\/\/www.tflequip.com\/da\/wp-json\/wp\/v2\/posts\/1468\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.tflequip.com\/da\/wp-json\/wp\/v2\/media\/1489"}],"wp:attachment":[{"href":"https:\/\/www.tflequip.com\/da\/wp-json\/wp\/v2\/media?parent=1468"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tflequip.com\/da\/wp-json\/wp\/v2\/categories?post=1468"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tflequip.com\/da\/wp-json\/wp\/v2\/tags?post=1468"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}