CAJ | 학술논문

为了研究微波加热过程中温度、厚度对硅酸铝/氧化锆纤维板保温层透波性能的影响，以期设计出在整个微波加热过程中都具有良好透波性能的保温层，利用通过单层平板内电磁波传播的理论机制和计算模拟技术，分析了保温层厚度和温度变化对硅酸铝/氧化锆纤维板透波性能影响的规律。同时从透波性能的角度，提出了硅酸铝/氧化锆纤维板保温层在微波加热中厚度选择的基本原则。研究结果表明：20℃时，硅酸铝纤维板的功率透过系数随厚度增加呈波动状态变化，存在透波峰；随着温度的升高，这种波动状逐渐消失，近似呈线性递减，1300℃时，0．1 m厚度的硅酸铝纤维透波率仅为0．62。氧化锆纤维板在20，200，500℃时，功率透过系数随着厚度的增加呈明显的波动变化，厚度为0．04，0．08 m时，功率透过系数曲线出现透波峰。该研究成果有助于微波高温加热设备的设计，微波加热工艺参数的优化以及微波能利用率的提高。
위료연구미파가열과정중온도、후도대규산려/양화고섬유판보온층투파성능적영향，이기설계출재정개미파가열과정중도구유량호투파성능적보온층，이용통과단층평판내전자파전파적이론궤제화계산모의기술，분석료보온층후도화온도변화대규산려/양화고섬유판투파성능영향적규률。동시종투파성능적각도，제출료규산려/양화고섬유판보온층재미파가열중후도선택적기본원칙。연구결과표명：20℃시，규산려섬유판적공솔투과계수수후도증가정파동상태변화，존재투파봉；수착온도적승고，저충파동상축점소실，근사정선성체감，1300℃시，0．1 m후도적규산려섬유투파솔부위0．62。양화고섬유판재20，200，500℃시，공솔투과계수수착후도적증가정명현적파동변화，후도위0．04，0．08 m시，공솔투과계수곡선출현투파봉。해연구성과유조우미파고온가열설비적설계，미파가열공예삼수적우화이급미파능이용솔적제고。
In order to research the effects of temperature and thickness on the transmission performance of aluminosilicate/zirconia fiberboard insulation layer, a computer simulation was carried out according to the electromagnetic wave transmission.The calculation results well display the relationships among the values of thickness of the aluminosilicate/zirconia fiberboard,temperature and microwave transmission performance.The preferred thickness was also investigated and discussed.It indicates that a series of transmission peaks appears with the thickness increasing at aluminosilicate 20 ℃.The exponential decreasing was replaced by linear decreasing with temperature rise.The power permeated coefficient reaches 0.62 at 1 300 ℃ as the aluminosilicate fiberboard has a thickness of 0.1 m.A series of transmission peaks appears with the thickness increases at 20,200,500 ℃. The zirconia fiberboard presents an excellent transmission performance with the thickness of 0.04,0.08 m.The research results are helpful to design the microwave high temperature heating equipments,optimize the parameters of microwave heating process,and improve the utilization of microwave energy.