The invention relates to a natural aeration and constant temperature device for aquaculture, which includes a housing and a heat source machine disposed on a floating base. A first heat exchanger of the heat source machine is disposed at one side inward the housing and is located between a first fan and a second fan. Formed at one side of the first heat exchanger is an air-intake channel in which a water pipe array, a water evaporator, and a second heat exchanger are sequentially arranged from left to right. The housing has an air discharge side in the proximity of the second heat exchanger, where an air-discharged channel is formed and has an end forming an ejection opening. Based on the result of detection realized with at least one sensor, a controller controls and adjusts the operations of the above discussed components to realize energy saving, fast adjustment of water temperature to maintain in a constant temperature condition, and increasing dissolved oxygen content and thus increasing the survival rate of aquaculture.本發明係有關於一種水產養殖自然瀑氣恆溫裝置(二),其係於一浮座上方設有一殼體及一熱源機組,該熱源機組之第一熱交換器設於該殼體內之一側,並位於一第一風扇及一第二風扇之間,而該第一熱交換器之一側為一進風道,其內依序由左而右設有一水管排、一水蒸發器、一第二熱交器;該殼體近該第二熱交換器其出風側形成一出風通道,並於末端設有一噴出口;利用一控制器根據至少一個以上感測器的偵測結果,以調控上述元件之作動,進而達到節能、快速調控水溫維持在恆溫狀態及提高溶氧值,增加水產養殖之存活率者。
