This invention relates to an improved submersible water temperature heating device which is disposed to the bottom part of aquaculture pond submerged under the water surface and has characteristics of no need of other peripheral equipment, low cost, and wide pond water temperature heating range. The device comprises a cylindrical hollow casing, an air suction water intake mechanism, a heating mechanism, a pump, and a flow guiding disc. The flow guiding disc is disposed to the water outlet part and has an arc inverted cone type disc shape, capable of introducing the air and pond water of the flow guiding part to the water outlet part to discharge. Furthermore, the outflowing pond water can be parallel to the bottom surface of the pond to enable the heated pond water to be jetted outwardly in 360 degrees. Since the heated pond water has lower density relative to other pond water, the heated pond water can float up toward the pond surface.本發明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。10‧‧‧圓筒型中空殼20‧‧‧吸氣進水部21‧‧‧進水口211‧‧‧護罩22‧‧‧中空軟管221‧‧‧氣孔222‧‧‧浮標30‧‧‧加熱部31‧‧‧加熱管32‧‧‧上端局部開口33‧‧‧下端局部開口34‧‧‧上隔板35‧‧‧下隔板40‧‧‧導流部41‧‧‧幫浦411‧‧‧幫浦出水口50‧‧‧出水部51‧‧‧出水口52‧‧‧導流盤60‧‧‧基座部61‧‧‧固定插腳
