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一、目前在工、农业生产中广泛推广应用的远红外加热干燥技术,其实质是高辐射率的热辐射加热干燥。通过提高辐射源的辐射率,实现节能和提高生产效率,这是科学有效的措施,值得在一切需要加热和干燥的领域里大力推广应用。它必将在我国“四化”建设中,为大量节能、节电,提高生产效率作出贡献。但目前对红外加热干燥的机理研究还很少,红外知识普及也不够,因而存在不少模糊和错误的认识。要进一步推广、提高,必须加强机理研究和红外知识的普及。二、热辐射理论和实验测量均表明:对温度在摄氏几十度至几百度范围内的红外辐射(即热辐射)源,其辐射波长范围主要在2—15微米,辐射最大的峰值波长在5—6微米附近,这就是目前在工、农业加热干燥技
First, far-working and agricultural production in the far-infrared heating and drying technology widely applied, its essence is the high emissivity heat radiation drying. By increasing the emissivity of radiation sources, saving energy and increasing production efficiency are scientifically valid measures that deserve to be promoted in all fields where heating and drying are required. It will surely contribute to saving a lot of energy, saving electricity and raising the production efficiency in the “four modernizations” of our country. However, few studies have been done on the mechanism of infrared heating and drying, and the popularization of infrared knowledge is not enough. Therefore, there are many vague and incorrect understandings. To further promote and improve, we must strengthen the mechanism of research and the popularization of infrared knowledge. Second, the theory of heat radiation and experimental measurements show that: the temperature in the tens of degrees Celsius to several hundred degrees within the range of infrared radiation (ie, thermal radiation) source, the wavelength of the main radiation in the 2-15 micron range, the maximum peak wavelength in the 5-6 microns nearby, which is currently in agriculture, agricultural heating drying technology