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在轧钢加热炉上,回收烟气余热,用以预热气体燃料和助燃空气,是一项卓有成效的节能措施。节能型加热炉,要求烟气余热达到全回收,即最大限度地回收烟气中的热量,并以最小的损失送回炉内。这项措施的实施,促使国内研制出新型高效的换热器和高绝热性能的保温材料。然而,对余热回收系统中的设备如何布置得更合理应引起足够的重视。
In the rolling furnace, the recovery of waste heat flue gas, used to preheat the gas fuel and combustion air, is an effective energy-saving measures. Energy-saving heating furnace, requiring flue gas waste heat to achieve full recovery, that is, to maximize the recovery of flue gas heat, and with the least loss back to the furnace. The implementation of this measure has prompted the development of new and efficient heat exchangers and insulation materials with high thermal insulation properties in China. However, how to arrange the equipment in waste heat recovery system more reasonable should be paid enough attention.