The Design and Application of the Water Temperature Control System for Large Aquaculture Pond

Because the traditional cooling methods such as ice cooling and natural convection cooling can not meet the special requirements of ornamental fish breeding, the way based on mechanical refrigeration, heat exchange system, water supply system and automatic control system is designed to meet the cooling rate of 1~1.5°C/h. It includes calculating cooling capacity, temperature difference of circulating water, flow rate of cooling medium, controlling flow rate of circulating water and cooling medium by valve, designing the water supply system. Practice proves the way feasible. Survival rate of ornamental fish under the cooling system is beyond 98 percent.