从水击原理、空化理论和结构振动理论三方面阐述了太阳能蓄热器充汽噪声产生的机理，并获得相应的试验验证，从而为蓄热器充汽运行的降噪提供了控制条件和理论依据、同时，对充热水击、射流空化作了妥切的说明，对蓄热器中充液介质温度升高使噪声减小提出了新的看法。 From the water hammer principle, the cavitation theory and the structure vibration theory, the mechanism of the solar thermal storage charger fouling noise is expounded, and the corresponding experimental verification is given, which provides the control conditions for the noise reduction of the thermal storage charger charging operation. Theoretical basis, and at the same time, it gives a proper description of hot water hammering and jet cavitation, and puts forward a new view on the noise reduction caused by the increase of the temperature of the liquid-filled medium in the accumulator.