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从锻造加热炉等工业炉排出的高温废气,有的直接放散掉,有的利用金属换热器回收余热,用来预热助燃空气。但使用金属换热器时,在高温条件下耐用性存在问题,故不得不降低换热器的出口温度,以至影响节能效果。因此,希望开发耐热性优良、可靠性高的陶瓷换热器。最近,日本石川岛播磨公司与东芝陶瓷公司和精密陶瓷中心合作,共同开发了加热炉用新
High-temperature exhaust gas discharged from industrial furnaces such as forging furnaces, etc., are directly discharged, and some use the metal heat exchanger to recover the waste heat, so as to preheat the combustion air. However, when using metal heat exchangers, there are problems with the durability under high temperature conditions, so the outlet temperature of the heat exchanger has to be lowered to affect the energy saving effect. Therefore, it is desirable to develop ceramic heat exchangers which are excellent in heat resistance and high in reliability. Recently, Japan Ishikawajima Broadcasting Company and Toshiba Ceramics Co., Ltd. and Precision Ceramics Center, jointly developed a new heating furnace