商用電磁爐的電加熱技術特點 - 常見問題

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    商用電磁爐的電加熱技術特點

    來源:http://www.hongweibelts.com添加時間:2018-07-30 16:01:25
    1、電熱管加熱
    1. Heating tube heating
    電熱管現在已經被廣泛應用在蒸飯柜、熱水器等廚房設備中。電熱管是在金屬管兩端電極接人電阻絲,周周圍空隙部分緊密填充具有耐熱性、導熱性和絕緣性的結晶氧化鎂粉,通電后發熱,經周圍介質傳導熱量。管狀加熱元件具有結構簡單,機械強度高,熱效率高,安全可靠,安裝方便,使用用壽命長等一些特點。
    Electric heating tubes are now widely used in cooking equipment such as rice cooker, water heater and so on. The electric heating tube is the resistance wire at the two ends of the metal tube, and the crystallized magnesia powder with heat resistance, heat conduction and insulation is filled closely around the surrounding space, and the heat is transmitted through the surrounding medium. The tubular heating element has the advantages of simple structure, high mechanical strength, high thermal efficiency, safety and reliability, easy installation and long service life.
    2、電磁爐加熱原理
    2. The heating principle of the electromagnetic furnace
    電磁爐加加熱原理就是將50Hz交流電轉化為工作頻率為20kHz左右的交流電,交流電在鍋具底部生成交變磁場,金屬鍋具內產生渦流,高頻渦流迅速導電發熱,實現電磁能向熱能的轉換。
    The heating principle of the electromagnetic furnace is to convert the 50Hz alternating current to the alternating current of about 20kHz. The alternating current generates alternating magnetic field at the bottom of the pot, the metal pot produces eddy in the metal pot, and the high frequency eddy current is rapidly conducting and heating, realizing the conversion of the electromagnetic energy to the heat energy.
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    3、遠紅外線加熱原理
    3, the principle of far infrared heating
    遠紅外線是一種傳導能量的電磁波,介于紅色與不可見光譜之間,所以稱為遠紅外線,波長在0.47~400?m之間。當遠紅外線線照射到被加熱的物體時,一小部分射線被反射回來,絕大部分滲透到被加熱的物體之中,當發射的遠紅外線波長和被加熱物體的吸收波長一致時,被加熱的物體內分子或原子吸收遠紅外線能量,產生劇烈的振動、旋轉,并使內部分子和原子發生高速摩擦,產生熱量而使其溫度升高,從而達到了加熱的目的。
    Far infrared is an electromagnetic wave that conducts energy between the red and invisible spectra, so it is called far infrared, with wavelengths ranging from 0.47 to 400?M. When the far infrared line irradiates the heated object, a small part of the ray is reflected, most of which penetrates into the heated object. When the wavelength of the far infrared ray emitted is in accordance with the absorption wavelength of the heated object, the molecules or atoms in the heated object absorb the far infrared energy, producing violent vibration, Rotation, and make the internal molecules and atoms have high-speed friction, heat generation and its temperature rise, thus achieving the purpose of heating.
    遠紅外線加熱時不需要傳熱介質,其具有很強的穿透能力,遠紅外線加熱與常規傳導方式相比,具有熱傳導簡單直接、熱效率高的特點??蔁臼澄?、殺菌消毒,具有快捷、衛生、質量佳、口感好等優點。
    Far infrared heating does not need heat transfer medium, it has strong penetration ability. Compared with conventional conduction mode, far infrared heating has the characteristics of simple direct heat conduction and high thermal efficiency. It can barbecue food, sterilize and disinfect. It has the advantages of quick, hygienic, good quality and good taste.
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