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近年来,我们通过设计大容量热交換器的实践,对其消声原理及其方法的规律,初步获得一些肤浅认识。现作如下论述: 通过对产生强烈振动和噪声热交换箱的仔细观察和分析。我们认为,形成噪声的主要因素:当高压蒸气从加热管口高速喷出的瞬间,蒸气压力突然下降,体积迅速膨胀,产生高强度噪声。该噪声的功率是与压力的高次方成正比。因此,从加热管口喷出的蒸气压力越高,这种噪声也就越大。其次是膨胀后的蒸气与冷水接触后放出大量的热,溫度
In recent years, we have obtained some superficial understanding through the practice of designing large-capacity heat exchangers and their laws of noise elimination principle and method. Discussed as follows: Through careful observation and analysis of heat exchange boxes that produce intense vibration and noise. In our opinion, the main factor of forming noise is that when the high-pressure steam is ejected from the heating nozzle at a high speed, the vapor pressure suddenly drops and the volume rapidly expands to produce high-intensity noise. The power of this noise is proportional to the high order of the pressure. Therefore, the higher the pressure of the steam ejected from the heating nozzle, the greater this noise. Followed by the expansion of the steam and cold water release a lot of heat, temperature