Furnace end of commercial electric flame stove

Abstract

The utility model discloses a furnace end of a commercial electric flame stove, which comprises a plurality of plasma ejectors, an inner wall and an outer wall, and a hearth is formed between the inner wall and a wok; the inner wall is in a pot shape, and the inner wall and the turned edge at the top end of the outer wall are connected in a sealed mode and define a hollow furnace end cavity; the plurality of plasma ejectors are arranged at the bottom of the inner wall, and the upper ends of the plasma ejectors extend into the hearth; a gas inlet pipe is arranged at the upper end of the outer wall, and a connecting line between the circle center of the section of the furnace end cavity and an output port of the gas inlet pipe is perpendicular to the output direction of the gas inlet pipe.

Description

Technical Field

[0001] The utility model specifically relates to a commercial electric flame stove. Background Art

[0002] With the continuous innovation of technologies and materials, electric flame stoves have gradually entered human kitchens and continued to develop, providing users with a better cooking experience and promoting the progress of green and environment-friendly cooking. At the same time, electric flame stoves have entered commercial kitchens. The working principle of an electric flame stove is to generate a plasma flame through an arc reaction of an ion needle connected to an anode for heating a pot body. Since the plasma flame has a relatively high temperature, the electric flame stove is suitable for various cooking needs, including various cooking techniques such as rapid boiling, stewing, frying, etc.

[0003] For example, the utility model patent with the publication number CN221005149U discloses a burner head of a commercial electric flame stove, which includes: a furnace chamber, a plurality of ceramic tubes, an electrode needle arranged in the middle of the ceramic tubes, and a plurality of flame tubes for generating a circuit return with the electrode needle. An annular heat insulation plate is arranged on the outer side of the upper end of the side wall of the furnace chamber, and a pot pad for supporting the pot body is arranged on the heat insulation plate; an insulation ring is further arranged on the outer ring of the heat insulation plate, and the insulation ring and the heat insulation plate form a heat collection cavity with the pot body. The burner head of the utility model commercial electric flame stove forms a heat collection cavity with the pot body by arranging the heat insulation plate and the insulation ring. The heat collection cavity concentrates the heat discharged from the heating cavity of the furnace chamber and reheats the pot body, so that the energy of the commercial electric flame stove is efficiently utilized. However, part of the heat in the furnace chamber is transferred to the heat insulation plate and the insulation ring and finally dissipated, so a lot of heat cannot be recovered and reused. Summary of the Utility Model

[0004] The utility model aims to provide a technical solution to solve the above problems in order to overcome the above deficiencies.

[0005] A burner head of a commercial electric flame stove includes a plurality of plasma injectors, an inner wall and an outer wall, and a furnace chamber is formed between the inner wall and a wok.

[0006] The inner wall is in the shape of a pot, and the rolled edges at the tops of the inner wall and the outer wall are hermetically connected and enclose a hollow burner head cavity; a plurality of plasma injectors are arranged at the bottom of the inner wall, and the upper ends of the plasma injectors extend into the furnace chamber.

[0007] An air inlet pipe is arranged at the upper end of the outer wall, and the connection line between the center of the cross-section of the burner head cavity and the output port of the air inlet pipe is perpendicular to the output direction of the air inlet pipe.

[0008] The plasma injector includes a flame tube installed at the bottom of the inner wall, a ceramic tube installed on the outer wall and corresponding to the flame tube, and an electrode needle installed inside the flame tube. The bottom end of the flame tube is connected to the top end of the ceramic tube.

[0009] Preferably, a plasma channel is formed inside the ceramic tube and the flame jet tube, and the upper end of the electrode needle extends into the plasma channel;

[0010] Preferably, air guide holes are provided on the wall of the ceramic tube, and the air guide holes connect the plasma channel and the burner cavity;

[0011] Preferably, the upper end of the flame jet tube is of a contracted shape;

[0012] Preferably, the other end of the intake pipe is connected to an intake fan;

[0013] Preferably, a plurality of pot pads are installed along the circumference of the inner wall;

[0014] Preferably, the lower end of the ceramic tube passes through the bottom of the outer wall and extends downward, and the inside of the lower end of the ceramic tube is an insulating channel for the electrode needle to connect to the power supply.

[0015] Compared with the prior art, the advantages of the present utility model are as follows: The air flow introduced through the intake pipe forms a spiral air flow in the burner cavity in the present utility model. The spiral air flow inhales the heat of the inner wall and the outer wall, and is introduced into the plasma injector through the air guide holes to be energy-coupled with the plasma energy, effectively recovering the heat dissipated from the inner wall and the outer wall and improving the efficiency of the electric flame stove.

[0016] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is the top view of the present utility model.

[0019] Figure 2 is Figure 1 the cross-sectional view taken along line A-A in

[0020] Figure 3 is Figure 2 the enlarged view of circle B in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0023] In addition, in the description of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can also be the communication inside two elements. It can be a wireless connection or a wired connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] In addition, the technical features involved in different embodiments of the present utility model described subsequently can be combined with each other as long as they do not conflict with each other.

[0025] Please refer to Figures 1 to 3 , in the embodiment of the present utility model, a burner head of a commercial electric flame stove includes a plurality of plasma injectors, an inner wall 1 and an outer wall 2. A furnace chamber is formed between the inner wall 1 and the wok.

[0026] The inner wall 1 is in a pot shape. The flanges at the tops of the inner wall 1 and the outer wall 2 are hermetically connected and enclose a hollow burner head cavity. A plurality of plasma injectors are arranged at the bottom of the inner wall 1, and the upper ends of the plasma injectors extend into the furnace chamber.

[0027] An air inlet pipe 21 is provided at the upper end of the outer wall 2, and the other end of the air inlet pipe 21 is connected to an air inlet fan 4. The cross-section of the burner head cavity is circular, and the connection line between the center of the circle and the outlet of the air inlet pipe 21 is perpendicular to the output direction of the air inlet pipe 21. In order to fully heat the air entering the burner head cavity and then input it into the plasma injector, the air inlet pipe 21 forms a spiral shape with the cross-section of the burner head cavity, so that the airflow introduced through the air inlet pipe 21 forms a spiral airflow in the burner head cavity, and the spiral airflow inhales the heat of the inner wall 1 and the outer wall 2, effectively recovering the heat dissipated by the inner wall 1 and the outer wall 2.

[0028] The plasma injector includes a flame pipe 31 installed at the bottom of the inner wall 1, a ceramic pipe 32 installed on the outer wall 2 and corresponding to the flame pipe 31, and an electrode pin 33 installed inside the flame pipe 31. The bottom end of the flame pipe 31 is connected to the top end of the ceramic pipe 32;

[0029] A plasma channel is formed inside the ceramic pipe 32 and the flame pipe 31, and the upper end of the electrode pin 33 extends into the plasma channel. There is no contact between the electrode pin 33 and the flame pipe 31. When a sufficient voltage difference is reached, a discharge phenomenon occurs, ionizing the surrounding air to form plasma, and its temperature reaches above 1200 °C.

[0030] The wall of the ceramic pipe 32 is provided with air guide holes 321, and the air guide holes 321 connect the plasma channel and the furnace head cavity; the spiral hot air in the furnace head cavity finally enters the plasma channel through the air guide holes 321 and is energy-coupled with the plasma, realizing energy reuse. Under the action of aerodynamic force, the plasma mixture is ejected from the flame pipe 31 into the furnace chamber to heat the wok.

[0031] The upper end of the flame pipe 31 is in a contracted shape, which makes the flow rate of the plasma jet faster and better heats the wok.

[0032] An almost closed furnace chamber is formed between the inner wall 1 and the wok, which helps to reduce heat dissipation, and the heat acts more concentratedly on the wok in the closed space. A plurality of pot pads 5 are installed along the circumference of the inner wall 1, and the pot pads 5 contact the wok, so that there is a gap between the inner wall 1 and the wok, ensuring that air can circulate externally.

[0033] The lower end of the ceramic pipe 32 passes through the bottom of the outer wall 2 and extends downward. The inside of the lower end of the ceramic pipe 32 is an insulating channel for the electrode pin 33 to connect to the power supply.

[0034] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to encompass all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model.

Claims

1. A burner head of a commercial electric flame stove, comprising a plurality of plasma injectors, an inner wall and an outer wall, wherein a furnace is formed between the inner wall and a frying pan, characterized in that: The inner wall is pot-shaped, and the inner wall and the outer wall are sealed and connected at the top, and enclose a hollow furnace head cavity; a plurality of plasma injectors are arranged at the bottom of the inner wall, and the upper ends of the plasma injectors extend into the furnace; An air inlet pipe is provided at the upper end of the outer wall, and a line connecting the center of the cross section of the burner cavity and the outlet of the air inlet pipe is perpendicular to the outlet direction of the air inlet pipe; The plasma injector comprises a flame-spraying tube installed at the bottom of the inner wall, a ceramic tube installed at the outer wall and corresponding to the flame-spraying tube, and an electrode needle installed inside the flame-spraying tube, wherein the bottom end of the flame-spraying tube is connected to the top end of the ceramic tube.

2. The burner head of the commercial electric flame stove according to claim 1, characterized in that: The ceramic tube and the flame-spraying tube form a plasma channel inside, and the upper end of the electrode needle extends toward the plasma channel.

3. The burner head of the commercial electric flame stove according to claim 2, characterized in that: The ceramic tube wall is provided with an air guide hole, and the air guide hole communicates the plasma channel and the furnace head cavity.

4. The burner head of the commercial electric flame stove according to claim 3, characterized in that: The upper end of the flame-spraying tube is in a contracted shape.

5. The burner head of the commercial electric flame stove according to claim 4, characterized in that: The other end of the air intake pipe is connected to the air intake fan.

6. The burner head of the commercial electric flame stove according to claim 5, characterized in that: A plurality of pot pads are installed around the inner wall.

7. The burner head of the commercial electric flame stove according to claim 4, characterized in that: The lower end of the ceramic tube passes through the bottom of the outer wall and extends downward. The interior of the lower end of the ceramic tube is an insulating channel for the electrode needle to connect to the power supply.

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