A kind of protein defoaming device of bilayer arc Taper Pipe squash type, espespecially the protein defoaming device is introducing water and bubble Hou, by first and second arc reducing pipe of bilayer, will by bubble squeezed, be merged into air pocket, to raise numerous tiny bubbles upwards, and the bubble what for being mingled with dirt is made to overflow its second arc reducing pipe Hou, it flows into surge drum and vanishes, to collect impurities in water or the dirt person by bubble entrained with.一種雙層弧形錐管擠壓式之蛋白除沫器，尤指該蛋白除沫器在引入水及氣泡後，藉由雙層之第一及第二弧形漸縮管，將通過之氣泡予以擠壓、合併成大氣泡，以向上推升眾多細小泡泡，並使夾雜污物的氣泡於溢出其第二弧形漸縮管後，流入收集筒破滅，以收集由氣泡所夾帶之水中雜質或污物者。
