Rice steaming box capable of recycling steam heat

Abstract

The invention discloses a rice steaming box for steam heat recovery, which comprises a rice steaming box and a water tank. A heat exchange tube is arranged in the water tank, and one end of the heat exchange tube is connected with a steam exhaust pipe of the rice steaming box. There are a water inlet pipe and a water outlet pipe, the water inlet pipe is connected with the external water supply pipe, and the water outlet pipe is connected with the water inlet of the steam generating device of the rice steaming box. The present invention uses the waste heat of the steam discharged from the rice steamer to preheat the water in the water tank, increases the initial temperature of the water entering the heating pipe, reduces the heat required for generating steam, reduces the heat required for generating steam, and improves the Energy efficiency, reducing energy consumption and cost.

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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