【摘要】 搭建了基于吸收式热泵的直接接触式烟气余热回收实验系统,通过实验研究了水气比、喷嘴形式、喷嘴排数、过量空气系数、喷淋高度、喷水温度、排烟温度对直接接触式换热器性能的影响。测试了凝结水量和冷凝水的pH值,以及换热器烟气侧阻力。结果表明,影响烟气-水换热效率的主要因素是水气比、喷淋高度和喷水雾化粒径,排烟温度、喷水温度和过量空气系数对换热效率也有一定影响。整个余热回收系统的实验测试结果达到了设计要求。更多还原

【Abstract】 Establishes a performance test-bed for direct-contact flue-gas heat recovery system based on absorption heat pump.Through experiments studies the influence of the ratio of water to gas,spray nozzle type,row number of spray nozzle,excess air coefficient,spraying height,water-spray temperature and flue-gas temperature on the performance of the direct-contact flue-gas condensation heat exchanger.Measures the amount of condensate water,pH value of condensate water and resistance in flue-gas side.The results show that the main factors of influencing the efficient of heat exchange between flue-gas and water are the ratio of water to gas,spraying height and sprayed water diameter,while the flue-gas temperature,water-spray temperature and excess air coefficient have less influence.The test results of the whole system attain design requirements.更多还原