水产养殖中普遍使用叶轮式增氧机。现结合其特点谈谈其选购及使用、维护方法和常见故障的排除。1选购(1)叶轮式增氧机的选购。根据水面和鱼产量来确定机型。一般水面为0.7hm2,产量在500kg/hm2以上的鱼塘,可选购3kW的增氧机;0.40～0.53hm2水面,产量在400kg/hm2左右的鱼塘,可选购 Impeller aerators are commonly used in aquaculture. Now combine its characteristics to talk about their purchase and use, maintenance methods and troubleshooting of common faults. 1 optional (1) impeller aerator purchase. Determine models based on surface and fish production. The average water surface is 0.7hm2, yield 500kg / hm2 above the fish ponds, optional 3kW aerator; 0.40 ~ 0.53hm2 surface, the yield of about 400kg / hm2 fish ponds, optional