Preheating recovery system of electric rice steaming box

Abstract

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.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electric rice steamer, concretely relates to electric rice steamer preheating recovery system. BACKGROUND

[0002] The rice steamer, also known as rice steaming cabinet, rice steaming machine or rice steaming vehicle, is a large kitchen baking equipment for steaming rice by using electricity or gas heating. The inside adopts stainless steel steaming tray (stainless steel square tray) as container, and universal wheels are installed at the lower part of the equipment for convenient movement, so the appearance is like a vehicle. The vehicle body is in the shape of cabinet, and the material is stainless steel, usually 304 stainless steel. The rice steaming vehicle is mainly used in large canteens of hotels, army, schools and factories. In addition to steaming rice, steamed buns and buns, the rice steaming vehicle can also steam pork, chicken, duck and other meat, and there is a seafood steaming cabinet specially used for steaming seafood, and it can also be used for stewing soup.

[0003] The existing rice steaming cabinet takes away a large amount of heat in the discharged steam, resulting in low energy utilization efficiency. Therefore, it is necessary to improve the structure of the existing rice steaming cabinet. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the above technical problems, the utility model adopts the technical scheme of electric rice steamer preheating recovery system. The electric rice steamer includes 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 includes a heat exchange chamber arranged in the upper end of the box body, 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 connected with the rice steaming chamber, a water filling pipe is arranged on the box body and connected with the heat exchange chamber, the heat exchange chamber is connected with the steam chamber through a water outlet pipe, an electric control valve is arranged on the water outlet pipe, an electric heater is arranged in the steam chamber, a gas hole plate is arranged between the steam chamber and the rice steaming chamber, and a plurality of gas holes are arranged on the gas hole plate.

[0005] As a preferred technical scheme of the above technical scheme, the upper end of the box body is provided with a water collecting bucket, the lower end of the water collecting bucket is connected with a water return pipe, the water return pipe is connected with the steam chamber, the upper end of the water collecting bucket is covered with a pressure cover, a plurality of exhaust holes are arranged around the pressure cover, and the air outlet part is arranged in the water collecting bucket.

[0006] As a preferred technical scheme of the above technical scheme, a thermometer and a liquid level meter are arranged in the heat exchange chamber.

[0007] As a preferred technical scheme of the above technical scheme, the lower end of the water outlet pipe is bent upwards to form a water storage part and then bent downwards to connect with the steam chamber.

[0008] As a preferred technical scheme of the above technical scheme, the lower end of the water return pipe is connected with the lower end of the steam chamber, and the upper end of the air outlet part is located at the middle position of the water collecting bucket.

[0009] Preferably, the water collecting bucket and the pressure cover are made of stainless steel or glass.

[0010] The electric rice steaming box preheating and recycling system of the utility model, utilizes water vapor to preheat water used for forming water vapor, reduces heat loss, improves energy utilization rate, can reduce water loss and improve water utilization rate. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is a structural schematic view of the utility model. DETAILED DESCRIPTION

[0012] The technical solutions of the utility model will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are some of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all the other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the utility model.

[0013] In the description of the utility model, it should be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0014] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0015] For example, Figure 1As shown, the electric rice steamer preheating recovery system, the electric rice steamer includes a box 1, the box 1 is internally provided with a rice steaming chamber 2, the rice steaming chamber 2 is provided with a plurality of rice steaming trays 3, the lower end of the box 1 is provided with a steam chamber 4, the preheating recovery system includes a heat exchange chamber 5 arranged at the upper end of the box 1, the heat exchange chamber 5 is provided with a heat exchange pipe 6, one end of the heat exchange pipe 6 extends out of the box 1 to form an air outlet portion 7, the other end of the heat exchange pipe 6 is communicated with the rice steaming chamber 2, the box 1 is provided with a water feeding pipe 8 communicated with the heat exchange chamber 5, the heat exchange chamber 5 is communicated with the steam chamber 4 through a water outlet pipe 9, the water outlet pipe 9 is provided with an electric control valve 10, the steam chamber 4 is provided with an electric heater 11, the steam chamber 4 and the rice steaming chamber 2 are provided with a gas hole plate 12, the gas hole plate 12 is provided with a plurality of gas holes 13. The water in the steam chamber 4 is heated by the electric heater 11 to form water vapor, the water vapor enters the rice steaming chamber 2 through the gas holes 13 to steam the food in the steam chamber 4. The air pressure in the rice steaming chamber 2 gradually increases, the water vapor enters the heat exchange pipe 6, and is discharged from the air outlet portion 7, and exchanges heat with the water in the heat exchange chamber 5 in the heat exchange pipe 6, so that the water in the heat exchange chamber 5 is preheated. The preheated water in the heat exchange chamber 5 enters the steam chamber 4 from the water outlet pipe 9.

[0016] Further, the upper end of the box 1 is provided with a water collecting bucket 14, the lower end of the water collecting bucket 14 is connected with a water return pipe 15, the water return pipe 15 is communicated with the steam chamber 4, the upper end of the water collecting bucket 14 is covered with a pressure cover 16, the periphery of the pressure cover 16 is provided with a plurality of air vents 17, and the air outlet portion 7 is located inside the water collecting bucket 14. The uncondensed water vapor flowing out of the air outlet portion 7 enters the water collecting bucket 14, is pressed by the pressure cover 16, continues to condense into water on the pressure cover 16, and is collected by the water collecting bucket 14. The water collected by the water collecting bucket 14 returns to the steam chamber 4 from the water return pipe 15. When the air pressure in the water collecting bucket 14 is not high, the air vents 17 are used for pressure relief. When the air pressure in the water collecting bucket 14 is too high, the pressure cover 16 can be automatically pushed open for pressure relief.

[0017] Further, the heat exchange chamber 5 is provided with a thermometer 18 and a liquid level gauge 19. The thermometer 18 reflects the temperature of the water in the heat exchange chamber 5 in real time, when the temperature of the water in the heat exchange chamber 5 reaches a certain temperature, the electric control valve 10 is opened, and the high-temperature water in the heat exchange chamber 5 flows into the steam chamber 4 to form water vapor. The liquid level gauge 19 reflects the water level state in the heat exchange chamber 5 in real time. When the water level in the heat exchange chamber 5 is too low or there is no water, the water at the natural temperature is supplemented into the heat exchange chamber 5 from the water feeding pipe 8 in time.

[0018] Further, the lower end of the water outlet pipe 9 is bent upwards to form a water storage portion 20, and then is bent downwards to communicate with the steam chamber 4. The water storage portion 20 can always store a part of water to prevent the water vapor in the steam chamber 4 from entering the water outlet pipe 9.

[0019] Further, the lower end of the backwater pipe 15 is communicated with the lower end of the steam chamber 4, and the upper end of the air outlet 7 is located at the middle position of the water collecting basin 14. The lower end of the backwater pipe 15 is communicated with the steam chamber 4, and the water vapor on the liquid surface of the steam chamber 4 cannot run into the backwater pipe 15 to escape.

[0020] Further, the water collecting basin 14 and the pressure cover 16 are made of stainless steel or glass. The water collecting basin 14 and the pressure cover 16 are easy to clean and replace, and have good heat conductivity.

[0021] It is worth mentioning that the electric heater 11, the thermometer 18 and the liquid level meter 19 and other technical features involved in the utility model patent application should be regarded as prior art. The specific structure, working principle and possible control mode and spatial arrangement mode of these technical features can be selected by using the conventional selection in the field, and should not be regarded as the invention point of the utility model patent. The utility model patent will not be further expanded and described in detail.

[0022] The preferred embodiments of the utility model are described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the utility model without creative labor. Therefore, any technical solution obtained by logical analysis, reasoning or limited experiment on the basis of the prior art according to the concept of the utility model should be within the protection scope determined by the claims.

Claims

1. A preheating and recycling system for an electric rice steaming oven, the electric rice steaming oven comprising an oven body, a rice steaming chamber arranged in the oven body, a plurality of rice steaming trays arranged in the rice steaming chamber, and a steam chamber arranged at a lower end of the oven body, characterized in that, The preheating recovery system comprises a heat exchange chamber arranged in the upper end of the box, a heat exchange pipe arranged in the heat exchange chamber, one end of the heat exchange pipe extending out of the box to form an air outlet, the other end of the heat exchange pipe being communicated with the rice steaming chamber, a water feeding pipe arranged on the box and communicated with the heat exchange chamber, a water outlet pipe communicated with the steam chamber, an electric control valve arranged on the water outlet pipe, an electric heater arranged in the steam chamber, a gas hole plate arranged between the steam chamber and the rice steaming chamber, and a plurality of gas holes arranged on the gas hole plate.

2. The preheating and recovery system for an electric rice cooker according to claim 1, wherein The upper end of the box is provided with a water collecting bucket, the lower end of the water collecting bucket is connected with a water return pipe, the water return pipe is communicated with the steam chamber, the upper end of the water collecting bucket is covered with a pressure cover, a plurality of air vents are arranged around the pressure cover, and the air outlet is located in the water collecting bucket.

3. The electric rice cooker preheating recovery system as claimed in claim 1, wherein, A thermometer and a liquid level meter are arranged in the heat exchange chamber.

4. The electric rice cooker preheating recovery system as claimed in claim 1, wherein, The lower end of the water outlet pipe is bent upwards to form a water storage part and then bent downwards to be communicated with the steam chamber.

5. The electric rice cooker preheating recovery system as claimed in claim 2, wherein, The lower end of the water return pipe is communicated with the lower end of the steam chamber, and the upper end of the air outlet is located at the middle position of the water collecting bucket.

6. The electric rice-cooker preheating recovery system of claim 5, wherein, The water collecting bucket and the pressure cover are made of stainless steel or glass.

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