The fish catches and transportation is crucial in fishery production. With the development of modern fishery technologies, the application of fish pumps has become increasingly widespread. The use of fish pumps can transport fish in the shortest time and reduce the damage to the fish during the operation, thereby improving the survival rate of fish. The application of fish pumps can save manpower, improve work efficiency, and significantly improve economic benefits. Our team has the serialization design capability of vacuum fish pumps with single/double tanks. The team designed four sets of vacuum fish pumps for the world’s first 100,000-ton smart fishery large-scale aquaculture vessel "Guoxin No.1" and successfully delivered them in June 2022. The vacuum fish pumps have the functions of catching adult fish, collecting dead fishand bilge dirt. Up to now, the equipment has caught nearly 10,000 tons of adult fish for "Guoxin No. 1". The shipowner of "Guoxin No.1" is highly satisfied with the operation effect of the equipment.
The team developed two new types of fish pumps and has the independent intellectual property rights: the vacuum water diversion fish pump and the flow-guiding fish pump. Compared with traditional vacuum fish pumps, centrifugal fish pumps, and jet flow fish pumps, the new types of fish pumps have significant advantages in terms of cost and energy consumption and cause no damage to fish. The team designed 12 sets of vacuum water diversion fish pumps for the 150,000-ton smart fishery large-scale aquaculture vessels "Guoxin No.2-1" and "Guoxin No.2-2." The product of vacuum water diversion fish pumps was delivered in May 2024. Compared with the vacuum fish pumps on "Guoxin No.1," the vacuum water diversion fish pump has increased the conveying capacity by 33%, reduced energy consumption by 80%, and reduced cost by 30%. Compared with the vacuum fish pumps of the same transportation capacity, the flow-guiding fish pump has reduced energy consumption by 50% and reduced cost by 30%. In 2025, the flow-guiding fish pump will be applied to the mechanized capture of Penaeus vannamei.
In the future, our team will further optimize the process flow and key equipment structure of the new fish pumps and promote their wide application in the field of fish catches and transportation.