The utility model discloses a preheating
recovery system of an electric rice
steaming box, the electric rice
steaming box comprises a box body, a rice
steaming chamber is arranged in the box body, a plurality of rice steaming trays are arranged in the rice steaming chamber, a steam chamber is arranged at the lower end of the box body, the preheating
recovery system comprises a heat exchange chamber arranged in the upper end of the box body, and a heat exchange
pipe is arranged in the heat exchange chamber. One end of the heat exchange
pipe extends out of the box body to form an air outlet part, the other end of the heat exchange
pipe is communicated with the rice steaming chamber, a water adding pipe communicated with the heat exchange chamber is arranged on the box body, the heat exchange chamber is communicated with the steam chamber through a sewer pipe, an
electric control valve is installed on the sewer pipe, an electric heater is installed in the steam chamber, and an air hole plate is arranged between the steam chamber and the rice steaming chamber. A plurality of air holes are formed in the air hole plate. According to the preheating
recovery system of the electric rice steaming box, water for forming the
water vapor is preheated through the
water vapor, heat loss is reduced, the energy
utilization rate is improved, meanwhile, water loss can be reduced, and the water
utilization rate is improved.