{"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\/ro\/what-is-the-self-priming-height-and-suction-height-of-a-self-priming-pump\/","title":{"rendered":"Care este \u00een\u0103l\u021bimea de autoamorsare \u0219i \u00een\u0103l\u021bimea de aspira\u021bie a unei pompe autoamorsante?"},"content":{"rendered":"

1. \u00cen\u0103l\u021bimea de autoamorsare<\/strong>
\nSe refer\u0103 la distan\u021ba vertical\u0103 de la centrul rotorului pompei de ap\u0103 la suprafa\u021ba lichidului. Factorul determinant este dimensiunea cavit\u0103\u021bii de stocare a lichidului \u00een timpul procesului de proiectare a pompei. Cu c\u00e2t este mai mare cavitatea de stocare a lichidului, cu at\u00e2t mai mult\u0103 ap\u0103 de r\u0103cire poate fi furnizat\u0103 garniturii mecanice \u0219i cu at\u00e2t mai mult pompa poate tolera func\u021bionarea uscat\u0103 \u00een timpul autoamors\u0103rii. \u00cen mod similar, cu c\u00e2t timpul de func\u021bionare \u00een stare uscat\u0103 este mai lung, cu at\u00e2t mai mult aer este evacuat \u0219i cu at\u00e2t mai mare este \u00een\u0103l\u021bimea de autoamorsare. \u00cen general, timpul de func\u021bionare uscat\u0103 a garniturii mecanice nu poate dep\u0103\u0219i 30 de secunde, dar pompa cu autoamorsare \u00eel poate men\u021bine \u00een 3 minute. \u00cen\u0103l\u021bimea de autoamorsare este \u00een general de 3 m.<\/p>\n

2. \u00cen\u0103l\u021bimea de aspira\u021bie<\/strong>
\n\u00cen\u0103l\u021bimea de aspira\u021bie este numit\u0103 \u0219i cursa de aspira\u021bie a pompei de ap\u0103 sau marja de cavita\u021bie necesar\u0103 \u25b3h. Formula de calcul este: \u25b3h=10,33m presiune atmosferic\u0103 coloan\u0103 de ap\u0103-marja de cavita\u021bie a pompei-pierderi \u00een conducte etc. \u00cen formul\u0103, 10,33m este presiunea atmosferic\u0103 standard (nivelul m\u0103rii). Dac\u0103 se afl\u0103 \u00eentr-o zon\u0103 cu altitudine mare, presiunea va sc\u0103dea, iar \u00een\u0103l\u021bimea de aspira\u021bie va sc\u0103dea, de asemenea. Marja de cavita\u021bie este o dat\u0103 care a fost format\u0103 \u00een timpul procesului de proiectare a pompei, care este \u00een general o valoare dat\u0103. Pierderile din conducte etc. se iau \u00een general la 0,5 m, iar aceast\u0103 valoare include \u0219i o marj\u0103 de siguran\u021b\u0103.<\/p>\n

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

Precau\u021bii de instalare:<\/strong>
\n1. Conducta de evacuare trebuie s\u0103 nu fie obstruc\u021bionat\u0103 \u0219i trebuie acordat\u0103 o aten\u021bie deosebit\u0103 pentru a nu instala o supap\u0103 de re\u021binere. Dac\u0103 trebuie s\u0103 fie instalat\u0103, v\u0103 rug\u0103m s\u0103 instala\u021bi o supap\u0103 de bypass \u00eentre supapa de re\u021binere \u0219i ie\u0219irea pompei pentru evacuare. 2. C\u00e2nd supapa de evacuare nu are ap\u0103, \u00eenchide\u021bi-o pentru a func\u021biona normal.
\n2. Distan\u021ba conductei paralele a pompei nu trebuie s\u0103 dep\u0103\u0219easc\u0103 0,5 metri, altfel va afecta \u0219i \u00een\u0103l\u021bimea de autoamorsare, deoarece aerul din conducta paralel\u0103 trebuie, de asemenea, s\u0103 fie evacuat de pompa de autoamorsare atunci c\u00e2nd func\u021bioneaz\u0103 \u00een gol.
\n3. Conducta de conectare a admiterii pompei trebuie s\u0103 fie complet etan\u0219at\u0103 \u0219i nu este permis\u0103 nicio scurgere de aer, \u00een special pentru conductele de sudur\u0103, unde pozi\u021bia cicatricei de sudur\u0103 este deosebit de u\u0219or de ignorat.<\/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\/ro\/wp-json\/wp\/v2\/posts\/1468"}],"collection":[{"href":"https:\/\/www.tflequip.com\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tflequip.com\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tflequip.com\/ro\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tflequip.com\/ro\/wp-json\/wp\/v2\/comments?post=1468"}],"version-history":[{"count":0,"href":"https:\/\/www.tflequip.com\/ro\/wp-json\/wp\/v2\/posts\/1468\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.tflequip.com\/ro\/wp-json\/wp\/v2\/media\/1489"}],"wp:attachment":[{"href":"https:\/\/www.tflequip.com\/ro\/wp-json\/wp\/v2\/media?parent=1468"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tflequip.com\/ro\/wp-json\/wp\/v2\/categories?post=1468"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tflequip.com\/ro\/wp-json\/wp\/v2\/tags?post=1468"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}