Graphene heating device for steam cooking and braising machine

Abstract

The utility model discloses a graphene heating device for a steam cooking and braising machine, and relates to the technical field of cooking and braising machines. The cooking and braising machine comprises a cooking and braising machine body and a water tank for providing steam for the interior of the cooking and braising machine body, wherein the cooking and braising machine body comprises an external sealing shell and an internal cooking and braising unit; the water tank is fixed in the sealing shell; a steam heat exchanger is fixed at the top of the enclosure; a cold water inlet of the steam heat exchanger communicates with a water inlet pipe; the water inlet pipe communicates with the water tank through the circulating pump; a hot water outlet of the steam heat exchanger communicates with the water tank through a water outlet pipe; a steam inlet of the steam heat exchanger communicates with an air inlet pipe; the air inlet pipe extends into the upper side in the sealing shell; and a graphene electric heating plate is fixedly mounted at the bottom end in the water tank. The cooking and braising machine has the advantages that the interior of the water tank is heated through the graphene electric heating plate, the occupied space is small, the water temperature rising speed is high, the using effect is outstanding, the water tank is arranged in the cooking and braising machine body, heat loss and waste can be reduced, and the energy utilization rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of cooking and stewing machines, in particular to a graphene heating device for a steam cooking and stewing machine. Background Art

[0002] The rice cooker is suitable for large fast food production lines. For example, canteens of military units, mines, schools and enterprises and institutions. It transfers the washed rice inside, and during the transfer process, it uses hot steam to steam the rice, and finally transfers the steamed rice.

[0003] At present, the water tank that provides hot steam for the cooking machine is usually arranged outside the cooking machine, resulting in a lot of heat being lost to the outside, causing heat waste. In addition, the current method of heating the water tank is usually to heat with electric heating wires. However, the electric heating wires occupy a large space in the water tank, which has a great impact on the water storage capacity of the water tank. In addition, the energy efficiency of the electric heating wires is relatively poor, resulting in low heating efficiency, low heat generation, and a slow rate of increase in water temperature. In order to increase the heating rate, it is necessary to increase the number of electric heating wires, which further increases the space occupied in the water tank. Therefore, there are major defects in use. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a graphene heating device for a steam cooker in view of the above-mentioned technical deficiencies. The graphene heating plate heats the water tank, occupies a small space, increases the water temperature quickly, and has an outstanding use effect. Moreover, the water tank is arranged inside the cooker body, which can reduce heat loss and waste and improve energy utilization.

[0005] The technical solution adopted by the utility model is: to provide a graphene heating device for a steam cooker, comprising a cooker body and a water tank for providing steam to the inside of the cooker body, the cooker body comprising an external enclosure and an internal cooking unit; the water tank is fixed inside the enclosure; a steam heat exchanger is fixed on the top of the enclosure; a cold water inlet of the steam heat exchanger is connected with a water inlet pipe; the water inlet pipe is connected with the water tank through a circulating pump; a hot water outlet of the steam heat exchanger is connected with the water tank through a water outlet pipe; the steam inlet of the steam heat exchanger is connected with an air inlet pipe; the air inlet pipe extends into the upper side of the enclosure; a graphene electric heating plate is fixedly installed on the bottom of the water tank.

[0006] To further optimize the technical solution, a water tank of a graphene heating device for a steam cooker is arranged at the lower part of the enclosure.

[0007] To further optimize the technical solution, a water tank of a graphene heating device for a steam cooker is made of rust-proof material.

[0008] The beneficial effects of the utility model are:

[0009] 1. The water tank is arranged inside the enclosure, so that the heat emitted by the water tank is not wasted directly, but acts on the inside of the enclosure, which can increase the temperature inside the enclosure, reduce energy loss and waste, and improve energy utilization.

[0010] A graphene electric heating plate is used inside the water tank to heat the water. It takes up little space, has high heating efficiency and high heat output. It not only saves energy, but also shortens the heating time and improves the working effect of the cooker itself.

[0011] 2. The hot steam provided by the water tank to the inside of the cooker body can steam the rice. The excess steam heat can enter the steam heat exchanger to heat the water in the water tank through heat exchange, further improving the utilization rate of heat and saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the local structure of the water tank.

[0014] In the figure, 1. water tank; 2. shell; 3. cooking unit; 4. steam heat exchanger; 5. water inlet pipe; 6. circulation pump; 7. water outlet pipe; 8. air inlet pipe; 9. graphene heating plate. DETAILED DESCRIPTION

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0016] like Figure 1-2 As shown, a graphene heating device for a steam cooker comprises a cooker body and a water tank 1 for providing steam inside the cooker body, the cooker body comprises an external enclosure 2 and an internal cooking unit 3; the water tank 1 is fixed inside the enclosure 2; a steam heat exchanger 4 is fixed on the top of the enclosure 2; a cold water inlet of the steam heat exchanger 4 is connected with a water inlet pipe 5; the water inlet pipe 5 is connected with the water tank 1 through a circulating pump 6; a hot water outlet of the steam heat exchanger 4 is connected with the water tank 1 through a water outlet pipe 7; a steam inlet of the steam heat exchanger 4 is connected with an air inlet pipe 8; the air inlet pipe 8 extends into the upper side of the enclosure 2; a graphene electric heating plate 9 is fixedly installed at the bottom end of the water tank 1; the water tank 1 is arranged at the lower part of the enclosure 2; the water tank 1 is made of rust-proof material.

[0017] In the present technical solution, the water tank 1 is arranged inside the enclosure 2, and the heat emitted by the water tank 1 will act on the inside of the enclosure 2 to improve the efficiency of heating inside the enclosure 2. On the other hand, when the water temperature in the water tank 1 rises to continuously generate hot steam, the hot steam steams the rice, and the heat emitted by the water tank 1 also helps to keep the steam warm, thereby reducing energy loss and waste and improving energy utilization.

[0018] When the hot steam is used to steam the rice, it is inevitable that some of the heat of the hot steam cannot be effectively utilized. Therefore, this part of the hot steam can enter the steam heat exchanger 4 through the air inlet pipe 8 to achieve the effect of heat exchange. When the circulation pump 6 draws the water in the water tank 1 into the steam heat exchanger 4 through the water inlet pipe 5, the steam heat exchanger 4 can heat the drawn water with the heat of the hot steam, and the heated water flows back to the water tank 1 through the water outlet pipe 7, thereby further improving the utilization rate of the heat, saving energy consumption, and improving the efficiency of heating the water.

[0019] The water tank 1 uses a graphene electric heating plate 9 to heat the water (the water tank 1 is connected to the external water supply system and can be replenished at any time according to demand). Compared with the traditional electric heating wire, the graphene electric heating plate 9 has better conductivity and higher energy efficiency. It can convert electrical energy into more thermal energy, and the electric heat conversion is faster. The heat generated is greater. While improving the heating effect and efficiency, it is even more energy-saving, and the space occupied is much smaller than the electric heating wire. The graphene electric heating plate 9 is a very thin sheet structure, and it does not take up space even if multiple are set ( Figure 1-2 In order to more clearly indicate the position of the graphene heating plate 9, the space occupied by the graphene heating plate 9 in the water tank 1 is enlarged), and the use effect is very prominent.

[0020] Since the generated heat moves upward, the temperature of the upper space in the enclosure 2 is higher than that of the lower space. The water tank 1 is arranged at the lower part of the enclosure 2 so that the heat it dissipates first acts on the lower space, thereby improving the effect of heating the interior of the enclosure 2.

[0021] When the water tank 1 is disposed inside the enclosure 2, since it is surrounded by water vapor for a long time, the water tank 1 needs to have sufficient anti-rust performance, for example, it can be made of stainless steel, oxygen-free copper and other materials.

[0022] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A graphene heating device for a steam cooker, comprising a cooker body and a water tank (1) for providing steam to the inside of the cooker body, characterized in that: The cooking and stewing machine body comprises an external sealing shell (2) and an internal cooking and stewing unit (3); a water tank (1) is fixed inside the sealing shell (2); a steam heat exchanger (4) is fixed on the top of the sealing shell (2); a cold water inlet of the steam heat exchanger (4) is connected to a water inlet pipe (5); the water inlet pipe (5) is connected to the water tank (1) through a circulating pump (6); a hot water outlet of the steam heat exchanger (4) is connected to the water tank (1) through a water outlet pipe (7); a steam inlet of the steam heat exchanger (4) is connected to an air inlet pipe (8); the air inlet pipe (8) extends into the upper side of the sealing shell (2); and a graphene electric heating plate (9) is fixedly installed at the bottom of the water tank (1).

2. The graphene heating device for a steam cooker according to claim 1, characterized in that: The water tank (1) is arranged at the lower part of the enclosure (2).

3. The graphene heating device for a steam cooker according to claim 1, characterized in that: The water tank (1) is made of rust-proof material.

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