Burner and electric flame stove

Abstract

The invention discloses a furnace end which comprises a hearth wall and a plurality of plasma combustors arranged on the hearth wall and further comprises a pot ring above the hearth wall. The hearth wall is a hollow wall formed by an outer wall and an inner wall; the multiple plasma combustors are evenly arranged around the inner wall, and the angle between each plasma combustor and the horizontal line ranges from 30 degrees to 60 degrees. A contraction air outlet is formed in the upper end of the pot ring and located above the common intersection point of the spraying directions of the multiple plasma combustors. When a plurality of electric flames collide at the gathering point, aerodynamic force can be obviously weakened, the movement speed of the collided electric flames is weakened, heat can be reserved at the gathering point for a long time, a wok is placed at a wok ring air outlet above the electric flame gathering point, and the heat energy heats the center of the wok bottom in a centralized mode.

Description

Technical Field

[0001] The present invention particularly relates to the field of electric flame cookers. Background Art

[0002] The electric flame stove uses the "electric flame" sprayed by the plasma burner to heat the pot, so that the heat is transferred to the food.

[0003] At present, electric flame stoves, especially high-power electric flame stoves or commercial electric flame stoves, are equipped with many plasma burners to increase the "firepower". The existing technology usually uses plasma burners to spray upwards. Since a safe distance needs to be set between plasma burners, some plasma burners are arranged around the bottom of the pot.

[0004] However, in the actual kitchen cooking process, the center of the pot bottom needs to concentrate heat to quickly heat the food so that the food has a good taste, while the edge of the wok itself lacks moisture or the cooking oil is cooled. The existing plasma burner heats the edge of the pot bottom, making it easier to burn. Summary of the invention

[0005] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0006] A furnace head, comprising a furnace wall and a plurality of plasma burners arranged on the furnace wall, characterized in that it also comprises a pot ring above the furnace wall; the furnace wall is a hollow wall formed by an outer wall and an inner wall, the outer wall and the inner wall are coaxial and both are pot-shaped; a plurality of plasma burners are evenly arranged around the inner wall, and a single plasma burner is at an angle of 30° to 60° to the horizontal line; a contraction air outlet is provided at the upper end of the pot ring, and the air outlet is located above the common intersection of the injection directions of the plurality of plasma burners; Preferably, the plasma burner is composed of a flame-spraying tube at its upper end and a ceramic tube at its lower end; the ceramic tube is arranged inside the furnace wall, and its lower end passes through the outer wall and extends outward; the flame-spraying tube passes through the inner wall and extends toward the furnace; Preferably, the ceramic tube is provided with a guide hole, and the guide hole communicates the plasma burner and the interior of the furnace wall; Preferably, an electrode needle is provided on the ceramic tube, and a distance of at least 2 mm is preset between the upper end of the electrode needle and the flame-spraying tube; Preferably, the outer wall is provided with an air inlet, the air inlet is connected to an air intake fan, and the air intake fan is communicated with the outside of the electric flame cooker; Preferably, a plurality of plasma burners are evenly arranged in two layers on the inner wall, the upper plasma burners are at an angle of 30° to 45° to the horizontal line, and the lower plasma burners are at an angle of 45° to 60° to the horizontal line; Preferably, the common intersection point of the injection directions of the plurality of plasma burners is on the axis of the inner wall.

[0007] The present invention also provides an electric flame stove, comprising any one of the burner heads described above.

[0008] Compared with the prior art, the advantages of the present invention are: each plasma burner of the present invention sprays electric flame at an inclined angle, so that heat can be gathered toward the position below the air outlet of the pot ring, so that the heat energy is concentrated to heat the center of the pot bottom and effectively transfer the heat to the food.

[0009] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0011] Figure 1 It is a structural diagram of embodiment 1 of the present invention.

[0012] Figure 2 It is a structural cross-sectional view of Example 2 of the present invention.

[0013] Figure 3 It is an exploded view of the plasma burner of the present invention. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0016] In addition, in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", 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 a direct connection, or it can be indirectly connected through an intermediate medium, it can also be the internal communication of two components, it can be a wireless connection, or it can be a wired connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] In addition, the technical features involved in the different embodiments of the present invention described later can be combined with each other as long as they do not conflict with each other.

[0018] See also Figures 1-2 In an embodiment of the present invention, a furnace head includes a furnace wall 1 and a plurality of plasma burners 2 arranged on the furnace wall 1, and also includes a pot ring 3 above the furnace wall 1; the furnace wall 1 is a hollow wall formed by an outer wall 11 and an inner wall 12, and the outer wall 11 and the inner wall 12 are coaxial and both are pot-shaped; Example

[0019] Each plasma burner 2 is set at an angle between 30 degrees and 60 degrees upward (with the horizontal line as 0 degrees), and sprays electric flames at an inclined angle so that heat can be gathered toward the axis of the inner wall 12.

[0020] Taking cooking with a wok as an example, the electric flame with an inclined angle can make the heat more concentrated in the center of the pot bottom. When multiple electric flames collide at this convergence point, the aerodynamic force will be significantly weakened, so that the movement speed of the electric flames after the collision is weakened, and the heat can be retained at the convergence point for a long time. The wok is placed at the air outlet of the pot ring 3 above the convergence point of the electric flames, so that the heat energy is concentrated to heat the center of the pot bottom, so that the vegetables and meat in the center of the wok are fried in a short time, which can not only retain the taste of vegetables and meat, but also lock in their nutrients. Compared with the burner that sprays flames vertically upward, it can more effectively transfer heat to the food instead of dispersing it to the pot wall or the surrounding environment.

[0021] Take frying steak in a frying pan as an example. The bottom of a frying pan is usually higher than that of a wok. When multiple electric flames collide at this point, the heat energy is concentrated at the point of convergence. The buoyancy of the air causes the heat to rise and spread to the bottom of the frying pan in a relatively uniform manner. The evenly distributed flames ensure that every area of ​​the bottom of the frying pan receives relatively balanced heat. The edges and center of the steak can gradually change color and cook through under the even heat, so that the steak can present an ideal color and a crispy outside and tender inside texture, without the center being burnt while the edges are not yet cooked through. Example

[0022] The plurality of plasma burners 2 are evenly arranged in two layers on the inner wall 12, the upper plasma burner 21 is at an angle of 30° to 45° to the horizontal line, and the lower plasma burner 22 is at an angle of 45° to 60° to the horizontal line. The common intersection of the injection directions of the plurality of plasma burners 2 is on the axis of the inner wall 12. The upper plasma burner 21 and the lower plasma burner 22 are at different heights on the furnace inner wall 12 and have different inclination angles with the horizontal line. The flames of the burners on each layer extend along different trajectories in the furnace space and finally converge at a specific position near the center of the bottom of the pot to form a common flame convergence point.

[0023] like Figure 3 As shown, in another embodiment, the plasma burner 2 is composed of a flame-spraying tube 201 at its upper end and a ceramic tube 202 at its lower end; the ceramic tube 202 is arranged inside the furnace wall 1, and its lower end extends outward through the outer wall 11; the flame-spraying tube 201 extends toward the furnace through the inner wall 12. A guide hole 2021 is provided on the ceramic tube 202, and the guide hole 2021 connects the plasma burner 2 and the inside of the furnace wall 1. An electrode needle 203 is provided on the ceramic tube 202, and a distance of at least 2 mm is preset between the upper end of the electrode needle 203 and the flame-spraying tube 201. The outer wall 11 is provided with an air inlet 110, and the air inlet 110 is connected to the air intake fan 100, and the air intake fan 100 is connected to the outside of the electric flame stove.

[0024] The present invention also provides an electric flame cooker, comprising any one of the above burner heads.

[0025] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A furnace head, comprising a furnace wall and a plurality of plasma burners arranged on the furnace wall, characterized in that: It also includes a pot ring above the furnace wall; the furnace wall is a hollow wall formed by an outer wall and an inner wall, the outer wall and the inner wall are coaxial and both are pot-shaped; a plurality of plasma burners are evenly arranged around the inner wall, and a single plasma burner is at an angle of 30° to 60° to the horizontal line; a contraction air outlet is provided at the upper end of the pot ring, and the air outlet is located above the common intersection of the injection directions of the plurality of plasma burners.

2. The burner head according to claim 1, characterized in that: The plasma burner is composed of a flame-spraying tube at its upper end and a ceramic tube at its lower end; the ceramic tube is arranged inside the furnace wall, and its lower end passes through the outer wall and extends outward; the flame-spraying tube passes through the inner wall and extends toward the furnace.

3. The burner head according to claim 2, characterized in that: The ceramic tube is provided with a guide hole, which communicates the plasma burner with the interior of the furnace wall.

4. The burner head according to claim 3, characterized in that: The ceramic tube is provided with an electrode needle, and a distance of at least 2 mm is preset between the upper end of the electrode needle and the flame-spraying tube.

5. The burner head according to claim 1, characterized in that: The outer wall is provided with an air inlet, the air inlet is connected to an air inlet fan, and the air inlet fan is communicated with the outside of the electric flame cooker.

6. The burner head according to claim 1, characterized in that: A plurality of plasma burners are evenly arranged in two layers on the inner wall, the upper plasma burners are at an angle of 30° to 45° to the horizontal line, and the lower plasma burners are at an angle of 45° to 60° to the horizontal line.

7. The burner head according to claim 6, characterized in that: The common intersection point of the spray directions of the multiple plasma burners is on the axis of the inner wall.

8. An electric flame cooker, characterized in that: The electric flame cooker comprises the burner head according to any one of claims 1 to 7.

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