一.前言我厂海水管线附着的海生物主要是贻贝,其繁殖能力和抗污染能力极强,对生产危害很大,如我厂新海水泵房,长约70m直径900mm及1200mm的入口管线,使用不到一年,内壁就长满厚约200mm的贻贝,使管径缩小成φ500mm及φ800mm,其水头过滤网内壁也长满厚约300mm～500mm的贻贝,过滤网几乎堵死,仅1981年其中一条管线一次就清除出8—10吨贻 I. Foreword The sea creatures attached to the seawater pipeline of our factory are mainly mussels. Their breeding ability and anti-pollution ability are very strong, which is very harmful to the production. For example, our company Xinhai Pumping Room, about 70m diameter 900mm and 1200mm inlet lines, In less than one year, the inner wall is covered with mussels about 200mm in thickness. The diameter of the mussels is reduced to φ500mm and φ800mm. The inner wall of the head filter is also covered with mussels about 300mm ~ 500mm in thickness. In 1981, one of the pipelines cleared 8-10 tons of oil once