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提高電熱管使用壽命的方法

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提高電熱管使用壽命的方法

非標電熱管

電熱管使用壽命

Some 1 wiring insulation layer should be on the outside, avoid touching and corrosive, explosive medium, moisture; wiring should be able to accept long time temperature and heating wiring some load, the wiring screws fastening should avoid excessive force. 2, element should be stored in a dry place, if because of long time placed insulation resistance is lower than 1MΩ, in oven at 200℃in boring, or drop voltage electric heating, and rehabilitation of insulation resistance. 3 electric heating tube of magnesium oxide powder outlet, in the use of places to avoid being pollutants and moisture to enter, to avoid the onset of leakage trouble. High temperature wire, thermocouple, bimetal thermometer, temperature control appearance. 4, element to work under the following conditions: A. air relative humidity of not more than 95%, no explosive and corrosive gases. 1.1 times B. working voltage should be not greater than the additional value, the shell should be effectively grounded. C. insulation resistance than 1M Ωdielectric strength: 2KV\/1min. 5 electric heating pipe should be fixed, useful heating area is necessary to fully immersed in a liquid or solid metal, no empty. Found the body surface scaling or carbon, should be timely to clean and then, to avoid affecting heat and shorten the using life. The 6 heating the fusible metal or solid salt, alkali, Li Qing, Ishi and so on, should be decreased by using voltage for medium, after melting, can rise to additional voltage. Heating the air element should be inserted evenly placed, the element radiation condition outstanding, so that the air can be fully heated.1.接線有些應放在保溫層外面,避免與腐蝕性、爆破性介質、水份觸摸;引接線應能長時間接受接線有些的溫度及加熱負載,接線螺絲緊固時應避免用力過猛。?? 2.、元件應存放在枯燥處,若因長時間放置絕緣電阻低于1MΩ時,可在200℃左右的烘箱中枯燥,或下降電壓通電加熱,直至康復絕緣電阻。?? 3.電熱管出線端的氧化鎂粉,在運用場所避免遭到污染物與水分進入,避免漏電事端的發作。高溫線,熱電偶,雙金屬溫度計,溫控外表。?? 4.、元件答應在下列條件下作業: A.空氣相對濕度不大于95%,無爆破性和腐蝕性氣體。 B.作業電壓應不大于額外值的1.1倍,外殼應有用接地。 C.絕緣電阻≥1MΩ 介電強度:2KV\/1min。?? 5.電熱管應做好定位固定,有用發熱區有必要悉數浸入液體或金屬固體內,禁止空燒。發現管體表面有水垢或結碳時,應及時鏟除潔凈再用,避免影晌散熱而縮短運用壽命。? 6.加熱易熔金屬或固態硝鹽、堿、瀝清、石臘等時,應先下降運用電壓,待介質熔化后,才干升至額外電壓。 加熱空氣時元件應穿插均勻擺放,使元件有杰出的散熱條件,使流過的空氣能充沛加熱。

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