摘要
水净化机亦叫生物转盘，已有几十年历史，原作污水处理用，后引入养鱼业。我国是在1978年开始将水净化机用于养鱼业的，现已广泛应用于鱼种养殖、罗非鱼越冬、高密度养殖、鲤鲫鱼早舂繁殖、人工海水净化等方面。水净化机的品种、规格和结构也有了长足的发展，有转盘式的，转筒式的，带氧化槽的和浮筒支架(或固定支架)不带氧化槽的等等，
In 1970's the water purifying equipments be- gan to be employed in aquaculture in China and now have been widely used in this field.But all those machines are motor-powered,though development of water/wind-powered and pneumatic ones was tried,which turned out to be unsuccessful.In 1987, an institution in Shanghai developed a pneumatic water purifying device,which has been proved to be an initial success through applications by users.The paper introduces the design and calculation of the new device on its mechanism and structure.
