直接接触式高效低阻天然气锅炉排烟余热回收装置的研发

Study on hight efficient low resistance boiler with direct contact heat exchanger

为了大幅度提高天然气锅炉效率,提出一种回收天然气锅炉排烟余热的直接接触式换热器。经实验研究,得出用于指导工程设计的经验关系式。并根据经验公式设计了配用2 t天然气锅炉的新型节能器,其使用效果良好。最后分析了影响该节能器换热效果的主要因素,研究了排烟温度随液气比、节能器阻力随烟气流速的变化趋势。

In order to substantially increase the efficiency of natural gas boiler,a new boiler with the direct contact heat exchanger.recover gas waste heat was put forward experimental studies were obtained for the engineering design of the empirical formula.Base on the formula,a new two tons of natural gas boilers with new energy-saving devices was design and worked well.Finally,the main impact factors of effect of the energy-saving heat exchanger was analysied.and the trend of liquid-gas ratio,energy saving devices gas flow resistance along with exhaust gas temperature was studied.