Mariculture is very common in coastal areas, but in the process of seedling raising, the water temperature is very high. If the water temperature fluctuates too much, it will cause the survival rate of the fry to decline and cause serious economic losses. Only maintaining the water temperature can ensure the survival of the fry.Reduce economic losses. The heat exchanger can maintain the water temperature well. In summer, if the outside temperature is too high, it needs to cool the excessive water temperature to the temperature that the seedlings can bear. In winter, it needs to heat the pool water to ensure that the water temperature meets the requirements of survival and growth of the fry.However, due to the chloride ions in seawater, the intergranular corrosion of stainless steel is very serious, so the heat exchanger made of titanium plate is needed. The service life of the heat exchanger is effectively increased to meet the user's use requirements. Bring good economic benefits to users.

Plate heat exchanger is one of the widely used heat transfer equipment, which has the characteristics of high heat transfer efficiency, compact structure, small floor area, convenient installation and maintenance, and combination.