{"id":1514,"date":"2025-07-16T14:19:16","date_gmt":"2025-07-16T06:19:16","guid":{"rendered":"https:\/\/www.tflequip.com\/?p=1514"},"modified":"2025-07-16T14:19:16","modified_gmt":"2025-07-16T06:19:16","slug":"precautions-when-using-magnetic-pump","status":"publish","type":"post","link":"https:\/\/www.tflequip.com\/sk\/precautions-when-using-magnetic-pump\/","title":{"rendered":"Bezpe\u010dnostn\u00e9 opatrenia pri pou\u017e\u00edvan\u00ed magnetick\u00e9ho \u010derpadla"},"content":{"rendered":"

1. Probl\u00e9my sp\u00f4soben\u00e9 kavit\u00e1ciou v magnetick\u00fdch \u010derpadl\u00e1ch:<\/p>\n

Hlavn\u00fdmi pr\u00ed\u010dinami kavit\u00e1cie v \u010derpadl\u00e1ch s\u00fa ve\u013ek\u00fd odpor v pr\u00edvodnom potrub\u00ed \u010derpadla, v\u00e4\u010d\u0161ie mno\u017estvo plynnej f\u00e1zy v dopravovanom m\u00e9diu, nedostato\u010dn\u00e9 plnenie \u010derpadla, nedostato\u010dn\u00e1 vstupn\u00e1 v\u00fd\u0161ka \u010derpadla at\u010f. Kavit\u00e1cia je pre \u010derpadlo naj\u0161kodlivej\u0161ia. Pri v\u00fdskyte kavit\u00e1cie \u010derpadlo prudko vibruje a v\u00e1\u017ene sa po\u0161kod\u00ed rovnov\u00e1ha, \u010do sp\u00f4sob\u00ed po\u0161kodenie lo\u017e\u00edsk, rotorov alebo obe\u017en\u00fdch kolies \u010derpadla. Je to \u010dast\u00e1 pr\u00ed\u010dina poruchy magnetick\u00e9ho \u010derpadla.<\/p>\n

2. \u017diadny stredn\u00fd alebo mal\u00fd prietok dopravn\u00e9ho m\u00e9dia:<\/p>\n

Hlavn\u00fd hriade\u013e rotora a stabiln\u00e9 lo\u017eisko sa tr\u00fa nasucho, \u010d\u00edm sa lo\u017eisko sp\u00e1li. Magnetick\u00e9 \u010derpadlo je mazan\u00e9 a chladen\u00e9 dopravn\u00fdm m\u00e9diom pre klzn\u00e9 lo\u017eisko. Pri absencii vstupn\u00e9ho alebo v\u00fdstupn\u00e9ho ventilu sa klzn\u00e9 lo\u017eisko po\u0161kod\u00ed v d\u00f4sledku vysokej teploty v d\u00f4sledku nedostato\u010dn\u00e9ho mazania a chladenia dopravn\u00fdm m\u00e9diom.<\/p>\n

3. Zabr\u00e1\u0148te vniknutiu \u010dast\u00edc:<\/p>\n

1). Feromagnetick\u00e9 ne\u010distoty a \u010dastice sa nesm\u00fa dosta\u0165 do trecej dvojice magnetick\u00e9ho prenosu a lo\u017eiska.<\/p>\n

2). Po dopraven\u00ed m\u00e9di\u00ed, ktor\u00e9 \u013eahko kry\u0161talizuj\u00fa alebo sa zr\u00e1\u017eaj\u00fa, ho v\u010das prepl\u00e1chnite (po zastaven\u00ed \u010derpadla napl\u0148te dutinu \u010derpadla \u010distou vodou a po 1 min\u00fate chodu ju vypustite), aby ste zabezpe\u010dili \u017eivotnos\u0165 klzn\u00e9ho lo\u017eiska.<\/p>\n

3). Pri preprave m\u00e9di\u00ed obsahuj\u00facich pevn\u00e9 \u010dastice by mali by\u0165 filtrovan\u00e9 na vstupe do prietokovej trubice \u010derpadla.<\/p>\n

4. Po\u0161kodenie izola\u010dn\u00e9ho puzdra:<\/p>\n

Magnetick\u00e1 spojka magnetick\u00e9ho \u010derpadla je chladen\u00e1 m\u00e9diom dopravovan\u00fdm \u010derpadlom. Ak s\u00fa v m\u00e9diu tvrd\u00e9 \u010dastice, \u013eahko sp\u00f4sobia po\u0161kriabanie alebo prepichnutie izola\u010dn\u00e9ho puzdra. Niekedy m\u00f4\u017eu po\u0161kodenie izola\u010dn\u00e9ho puzdra sp\u00f4sobi\u0165 aj nespr\u00e1vne met\u00f3dy \u00fadr\u017eby.<\/p>\n

5. Zabr\u00e1\u0148te such\u00e9mu treniu:<\/p>\n

1). Pr\u00e1ca na vo\u013enobeh je pr\u00edsne zak\u00e1zan\u00e1.<\/p>\n

2). Stredn\u00e1 evaku\u00e1cia je pr\u00edsne zak\u00e1zan\u00e1.<\/p>\n

3). Ke\u010f je v\u00fdstupn\u00fd ventil zatvoren\u00fd, nepretr\u017eit\u00e1 prev\u00e1dzka \u010derpadla nesmie presiahnu\u0165 2 min\u00faty, aby sa zabr\u00e1nilo prehriatiu a poruche magnetick\u00e9ho prevodu.<\/p>\n

6. Zabr\u00e1\u0148te demagnetiz\u00e1cii:<\/p>\n

1). Magnetick\u00fd moment nem\u00f4\u017ee by\u0165 pr\u00edli\u0161 mal\u00fd.<\/p>\n

2). Mal by sa prev\u00e1dzkova\u0165 za stanoven\u00fdch teplotn\u00fdch podmienok a teplota m\u00e9dia nesmie pr\u00edsne prekro\u010di\u0165 normu. Na vonkaj\u0161\u00ed povrch magnetick\u00e9ho izola\u010dn\u00e9ho puzdra \u010derpadla mo\u017eno nain\u0161talova\u0165 platinov\u00fd odporov\u00fd sn\u00edma\u010d teploty, ktor\u00fd zis\u0165uje n\u00e1rast teploty v oblasti kruhovej medzery, aby sa pri prekro\u010den\u00ed limitnej teploty spustil alarm alebo vypnutie.<\/p>\n

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1. Problems caused by cavitation in magnetic pumps: The main reasons for cavitation in pumps are large resistance in the pump inlet pipe, more gas phase in the conveying medium, insufficient pump filling, insufficient pump inlet head, etc. Cavitation is the most harmful to the pump. When cavitation occurs, the pump vibrates violently and the […]<\/p>","protected":false},"author":4,"featured_media":1376,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[36],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/posts\/1514"}],"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=1514"}],"version-history":[{"count":0,"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/posts\/1514\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/media\/1376"}],"wp:attachment":[{"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/media?parent=1514"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/categories?post=1514"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/tags?post=1514"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}