{"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\/cs\/precautions-when-using-magnetic-pump\/","title":{"rendered":"Bezpe\u010dnostn\u00ed opat\u0159en\u00ed p\u0159i pou\u017e\u00edv\u00e1n\u00ed magnetick\u00e9ho \u010derpadla"},"content":{"rendered":"

1. Probl\u00e9my zp\u016fsoben\u00e9 kavitac\u00ed v magnetick\u00fdch \u010derpadlech:<\/p>\n

Hlavn\u00edmi p\u0159\u00ed\u010dinami kavitace v \u010derpadlech jsou velk\u00fd odpor v p\u0159\u00edvodn\u00edm potrub\u00ed \u010derpadla, v\u011bt\u0161\u00ed mno\u017estv\u00ed plynn\u00e9 f\u00e1ze v dopravovan\u00e9m m\u00e9diu, nedostate\u010dn\u00e9 pln\u011bn\u00ed \u010derpadla, nedostate\u010dn\u00e1 vstupn\u00ed v\u00fd\u0161ka \u010derpadla atd. Kavitace je pro \u010derpadlo nej\u0161kodliv\u011bj\u0161\u00ed. P\u0159i kavitaci doch\u00e1z\u00ed k prudk\u00fdm vibrac\u00edm \u010derpadla a v\u00e1\u017en\u00e9mu po\u0161kozen\u00ed rovnov\u00e1hy, co\u017e zp\u016fsob\u00ed po\u0161kozen\u00ed lo\u017eisek, rotor\u016f nebo ob\u011b\u017en\u00fdch kol \u010derpadla. Jedn\u00e1 se o \u010dastou p\u0159\u00ed\u010dinu selh\u00e1n\u00ed magnetick\u00e9ho \u010derpadla.<\/p>\n

2. \u017d\u00e1dn\u00fd st\u0159edn\u00ed nebo mal\u00fd pr\u016ftok dopravovan\u00e9ho m\u00e9dia:<\/p>\n

Hlavn\u00ed h\u0159\u00eddel rotoru a stabiln\u00ed lo\u017eisko se t\u0159ou nasucho a lo\u017eisko se sp\u00e1l\u00ed. Magnetick\u00e9 \u010derpadlo je maz\u00e1no a chlazeno dopravn\u00edm m\u00e9diem pro kluzn\u00e9 lo\u017eisko. P\u0159i absenci vstupn\u00edho nebo v\u00fdstupn\u00edho ventilu doch\u00e1z\u00ed k po\u0161kozen\u00ed kluzn\u00e9ho lo\u017eiska vlivem vysok\u00e9 teploty v d\u016fsledku nedostate\u010dn\u00e9ho maz\u00e1n\u00ed a chlazen\u00ed dopravn\u00edho m\u00e9dia.<\/p>\n

3. Zabra\u0148te vniknut\u00ed \u010d\u00e1stic:<\/p>\n

1). Feromagnetick\u00e9 ne\u010distoty a \u010d\u00e1stice se nesm\u00ed dostat do magnetick\u00e9ho p\u0159enosu a t\u0159ec\u00edho p\u00e1ru lo\u017eiska.<\/p>\n

2). Po doprav\u011b m\u00e9di\u00ed, kter\u00e1 snadno krystalizuj\u00ed nebo se sr\u00e1\u017eej\u00ed, je v\u010das propl\u00e1chn\u011bte (po zastaven\u00ed \u010derpadla napl\u0148te dutinu \u010derpadla \u010distou vodou a po 1 minut\u011b chodu ji vypus\u0165te), abyste zajistili \u017eivotnost kluzn\u00e9ho lo\u017eiska.<\/p>\n

3). P\u0159i doprav\u011b m\u00e9di\u00ed obsahuj\u00edc\u00edch pevn\u00e9 \u010d\u00e1stice je t\u0159eba je filtrovat na vstupu do pr\u016ftokov\u00e9 trubice \u010derpadla.<\/p>\n

4. Po\u0161kozen\u00ed izola\u010dn\u00edho pouzdra:<\/p>\n

Magnetick\u00e1 spojka magnetick\u00e9ho \u010derpadla je chlazena m\u00e9diem dopravovan\u00fdm \u010derpadlem. Pokud jsou v m\u00e9diu tvrd\u00e9 \u010d\u00e1stice, snadno zp\u016fsob\u00ed po\u0161kr\u00e1b\u00e1n\u00ed nebo prop\u00edchnut\u00ed izola\u010dn\u00edho pouzdra. N\u011bkdy mohou po\u0161kozen\u00ed izola\u010dn\u00ed obj\u00edmky zp\u016fsobit i nespr\u00e1vn\u00e9 metody \u00fadr\u017eby.<\/p>\n

5. Zabra\u0148te such\u00e9mu t\u0159en\u00ed:<\/p>\n

1). Volnob\u011bh je p\u0159\u00edsn\u011b zak\u00e1z\u00e1n.<\/p>\n

2). St\u0159edn\u00ed evakuace je p\u0159\u00edsn\u011b zak\u00e1z\u00e1na.<\/p>\n

3). P\u0159i zav\u0159en\u00e9m v\u00fdstupn\u00edm ventilu nesm\u00ed doba nep\u0159etr\u017eit\u00e9ho provozu \u010derpadla p\u0159ekro\u010dit 2 minuty, aby nedo\u0161lo k p\u0159eh\u0159\u00e1t\u00ed a poru\u0161e magnetick\u00e9ho p\u0159evodu.<\/p>\n

6. Zabra\u0148te demagnetizaci:<\/p>\n

1). Magnetick\u00fd moment nem\u016f\u017ee b\u00fdt p\u0159\u00edli\u0161 mal\u00fd.<\/p>\n

2). M\u011bla by b\u00fdt provozov\u00e1na za stanoven\u00fdch teplotn\u00edch podm\u00ednek a je p\u0159\u00edsn\u011b zak\u00e1z\u00e1no, aby teplota m\u00e9dia p\u0159ekra\u010dovala normu. Na vn\u011bj\u0161\u00edm povrchu magnetick\u00e9ho izola\u010dn\u00edho pouzdra \u010derpadla m\u016f\u017ee b\u00fdt instalov\u00e1n platinov\u00fd odporov\u00fd sn\u00edma\u010d teploty, kter\u00fd detekuje n\u00e1r\u016fst teploty v oblasti prstencov\u00e9 mezery, tak\u017ee p\u0159i p\u0159ekro\u010den\u00ed mezn\u00ed teploty se spust\u00ed alarm nebo vypne.<\/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\/cs\/wp-json\/wp\/v2\/posts\/1514"}],"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=1514"}],"version-history":[{"count":0,"href":"https:\/\/www.tflequip.com\/cs\/wp-json\/wp\/v2\/posts\/1514\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.tflequip.com\/cs\/wp-json\/wp\/v2\/media\/1376"}],"wp:attachment":[{"href":"https:\/\/www.tflequip.com\/cs\/wp-json\/wp\/v2\/media?parent=1514"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tflequip.com\/cs\/wp-json\/wp\/v2\/categories?post=1514"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tflequip.com\/cs\/wp-json\/wp\/v2\/tags?post=1514"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}