The purpose of this work is to provide an improved submerged water temperature heating device.It is located at the bottom of the aquaculture pond and below the water surface.There is no need for other surrounding equipment.Low cost,The pool water has a wide range of heating.The device comprises a cylindrical hollow shell.One suction water inlet mechanism,I. heating mechanism,One pump,And a deflector;The deflector is arranged at the outlet.It is circular arc inverted cone disc shape.The air and pool water flowing into the diversion part can be directed to the outlet part for outflow.And the outflow water can be parallel to the bottom of the pool.The heated pool water can be sprayed out 360 degrees.Because the heated pool water is relative to other pools,Low density,So it can float to the pool surface.本創作關於提供一種改良之沉水式水溫加溫裝置,係設於養殖漁業水池底部沒於水面下,具有不須其他周圍設備、成本低、池水加溫範圍廣之特點,該裝置係包含一圓筒型中空殼體、一吸氣進水機構、一加熱機構、一幫浦、及一導流盤;該導流盤係設於出水部,呈現圓弧倒錐型圓盤狀,可將流入該導流部之空氣及池水引導至該出水部流出,且該流出之池水可與池底面呈平行,使加熱之池水可360度向外噴流,由於加熱之池水相對於其他之池水,密度較低,故可往池面飄升。