Rice steaming box capable of recycling steam heat

Abstract

The invention discloses a rice steaming box capable of recycling steam heat. The rice steaming box capable of recycling steam heat comprises a rice steaming box body and a water tank, wherein a heat exchange tube is arranged in the water tank; one end of the heat exchange tube is connected with a steam discharging tube of the rice steaming box body; a water inlet tube and a water outlet tube are arranged on the water tank; the water inlet tube is connected with an external water supply tube; and the water outlet tube is connected with a water inlet of a steam generating device of the rice steaming box body. Water in the water tank is preheated by afterheat of steam discharged from the rice steaming box, the initial temperature of the water which enters a heating tube is increased, required heat for generation of steam is reduced, the energy utilization rate is increased, and energy consumption and costs are reduced.

Description

technical field [0001] The invention relates to a rice steamer for steam heat recovery. Background technique [0002] The rice steamer is a device that uses high-temperature water vapor to cook the rice in the box. The traditional rice steamer uses electric heating or fire heating to heat the water to generate steam. The steam is continuously generated. After the heat is released from the rice, it will be from The air port on the upper part of the rice steamer is discharged. At this time, the steam still contains a large amount of heat, and the direct discharge causes energy loss. [0003] Traditional heating uses a heating surface in contact with firepower. The heat transfer conversion rate is low, and most of the heat is lost. Most of the steam in the traditional rice steamer is heated by this heating method, and the steam generation efficiency is low. Evaporation The energy consumption is large, and the heat utilization rate of the fire of the traditional stove is low in...

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Problems solved by technology

[0002] The rice steamer is a device that uses high-temperature water vapor to cook the rice in the box. The traditional rice steamer uses electric heating or fire heating to heat the water to generate steam. The steam is continuously generated. After the heat is released from the rice, it will be from The air port on the upper part of the rice steamer is discharged. At this time, the steam still contains a lot of heat, and the direct discharge will cause energy loss.

[0003] Traditional heating uses a heating surface in contact with firepower. The heat transfer conversion rate is low, and most of the heat is lost. Most of the steam in the traditional rice steamer is heated by this heating method, and the steam generation efficiency is low. Evaporation The energy consumption is high, and the heat utilization rate of the fire of the traditional stove is low, and the waste heat of the fire at the bottom of the pot cannot be effectively used, resulting in a waste of energy

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