通常,中小型工厂都采用蒸汽直接加热浴池洗澡水。当压力为2～7公斤/厘米2的蒸汽经管道进入浴池底部时,由于浴池与管道的压力差异,蒸汽迅速膨胀,然而水的吸热作用,又使蒸汽气泡迅速冷凝、收缩直至消失。这样,蒸汽的一胀一缩使水受到冲击,产生噪声。显然,蒸汽压力越大,蒸气管内径 In general, small and medium-sized factories use steam to directly heat bathhouse bath water. When the pressure of 2 ~ 7 kg / cm 2 of steam into the bottom of the bath pipe, due to the pressure difference between the bath and the pipe, the rapid expansion of steam, but the water endothermic effect, but also the rapid condensation of steam bubbles, shrink until disappear. In this way, the expansion of steam swells the water and produces noise. Obviously, the greater the steam pressure, the inner diameter of the steam pipe