The excellent advantages obtained by tech nique reno-vation such as heat efficiency improvement,uniform surface t emperature,longer utilization life,and lower pol lution emis-sion are evalu ated.

• 蓄热式改造后的装置具有热效率高,表面温度分布均匀,使用寿命延长,污染物排放浓度降低等特点。