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锅炉的热载体介质有水、汽及乙醚、喹啉、联苯混合物、水银以及油类等。水是最廉价的热载体,在0℃到100℃之间使用水没有分解和腐蚀问题,随着温度的提高,水就会变成蒸汽,当水蒸汽达250℃时,其饱和水蒸汽压力为39.8bar,在350℃时水的饱和蒸汽压力则为165.4bar。而乙醚、喹啉、联苯混合物和水银等有机热载体虽能在较高温度下有较低的饱和压力,但都有毒性。因此对于需要低压、高温、恒温均匀加热,且无毒性的工业加热设备来说,使用导热油作为热载体的加热炉是一种很好的方法。导热油加热炉不仅能用于石油化工生产中的恒温均匀加热,而且已扩展到印染行业、粮食加工行业、建材行业和机械行业,用以代替电热干燥、远红外烘烤、蒸汽养护和热水
Boiler heat carrier medium with water, steam and ether, quinoline, biphenyl mixture, mercury and oil and so on. Water is the cheapest heat carrier, and water does not decompose and corrode at temperatures between 0 ° C and 100 ° C. As water temperature increases, water turns into steam. When water vapor reaches 250 ° C, its saturated water vapor pressure Is 39.8 bar, the saturated steam pressure of water at 350 ° C is 165.4 bar. Organic heat carriers, such as diethyl ether, quinoline, biphenyl, and mercury, have lower saturation pressures at higher temperatures but are all toxic. So for low-pressure, high temperature, uniform temperature heating, and non-toxic industrial heating equipment, the use of HTF as a heat carrier furnace is a good method. HTF furnace not only can be used for constant temperature and uniform heating in petrochemical production, but also has been extended to the printing and dyeing industry, food processing industry, building materials industry and machinery industry to replace electric drying, far-infrared baking, steam curing and hot water