Burner with double discharge areas and electric flame stove

Abstract

The utility model discloses a furnace end with double discharge areas and an electric flame stove. The furnace end comprises an upper shell, a lower shell and a plurality of anode tubes, the upper shell is provided with a plurality of cathode spray pipes corresponding to the anode pipes, and the lower shell is provided with a plurality of cathode heads corresponding to the anode pipes. According to the utility model, the balance between the installation convenience and the structural stability is realized, so that the installation cost is further reduced; the annular cooling channel timely cools the anode tube, the second gas guide hole and the third gas guide hole perform heat exchange on the cathode head, and fluid cools the anode tube and the cathode spray tube, so that the service life of a furnace end accessory is prolonged; the high-energy plasma is in a denser state under the action of'secondary excitation 'of the plasma and the contraction effect of an outlet of the second discharge area, and the collision frequency among high-energy particles finally enables the overall energy state of the plasma to be obviously improved, and meanwhile ozonolysis is accelerated.

Description

Technical Field

[0001] This utility model specifically relates to an electric flame stove. Background Technology

[0002] An electric flame stove, also known as a plasma stove, is a new type of flame generation method. It uses a high-frequency changing electric field, where two electrodes generate an electric arc under a certain voltage. The electric arc is a beam of high-temperature ionized gas, and the electric flame stove uses the continuous electric arc as energy for heating the pot.

[0003] For example, utility model patent application number 202311369153.9 describes a furnace head with a rotating working medium jet, comprising: a shell, multiple hollow cathode flame tubes disposed on the shell, multiple insulating seats, and multiple anode needles disposed on the insulating seats; the bottom of the insulating seats is provided with multiple air inlets, which are designed at an angle and are used to generate rotating air fluid within the arc generation space.

[0004] However, in the aforementioned utility model patent, the plasma moves rapidly outward from the flame tube with the airflow, which cannot increase the electron density, resulting in low efficiency. Even with a high-power current input, the energy of the high-power input is difficult to convert into the "high-energy state" (particle excited state, dissociation state) of the plasma, instead generating a large amount of loss.

[0005] Furthermore, the anode needles of current electric flame stoves generate temperatures of several thousand degrees Celsius during discharge. This high temperature is transferred to the circuit board through the conductors electrically connected to the anode needles, causing electronic components to overheat and become damaged. The aforementioned utility model patent includes features such as opening cyclone air inlets and creating an external rotating airflow cooling insulation base; however, its anode needles are installed inside the connecting groove, making effective cooling impossible, and it lacks a technical solution for cooling the anode needles.

[0006] Furthermore, the anode needle of this utility model patent is fixed in the connecting groove by threads. Not only does it require special tools for installation during production and maintenance, making the disassembly and assembly process cumbersome, but the threaded connection may also loosen during use or transportation in high-temperature and high-vibration working environments, affecting the normal use of the electric flame stove.

[0007] At the same time, the electrode discharge effect causes oxygen molecules in the air to separate and recombine to form ozone molecules. Excessive ozone density can harm the human body.

[0008] In response to the numerous technical problems mentioned above in the field of electric flame stoves, this utility model provides an electric flame stove with stable electrode needles, high thermal efficiency, and the ability to prevent the heat from the burner head from affecting electronic components, while also preventing ozone from harming the human body. Utility Model Content

[0009] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0010] A dual-discharge zone furnace head includes: an upper shell, a lower shell, and a plurality of anode tubes; the upper shell and the lower shell together form a furnace head cavity;

[0011] The upper housing is provided with a plurality of cathode nozzles corresponding to the anode tube, the lower housing is provided with a plurality of cathode heads corresponding to the anode tube, an upper ceramic tube is provided between the cathode nozzles and the anode tube, and a lower ceramic tube is provided between the anode tube and the cathode head;

[0012] An anode mounting ring is provided on the outer side of the bottom of the anode tube, and the anode mounting ring abuts against the top surface of the lower ceramic tube. A limit ring is provided at the upper end of the inner side of the upper ceramic tube, and the top surface of the anode tube abuts against the limit ring along its circumference.

[0013] The upper ceramic tube has multiple first air guide holes in its tube wall, the anode mounting ring has multiple second air guide holes, and the lower ceramic tube has multiple third air guide holes in its tube wall.

[0014] Preferably, a first discharge region is formed between the cathode head and the bottom of the anode tube, and an annular discharge head is provided at the top of the anode tube, forming a second discharge region between the discharge head and the cathode nozzle;

[0015] Preferably, a wire groove is formed at the bottom of the wall of the upper ceramic tube, and the wire groove penetrates the wall of the upper ceramic tube;

[0016] Preferably, a cathode mounting ring is provided on the outer side of the bottom of the cathode nozzle, and the upper housing has a plurality of through holes corresponding to the cathode nozzle. The diameter of the through holes is slightly larger than the outer diameter of the cathode nozzle, and the diameter of the through holes is slightly smaller than the outer diameter of the cathode mounting ring.

[0017] Preferably, the multiple cathode heads and the lower housing are an integrated metal structure, and the upper housing is a metal structure and connected to the negative terminal of the power supply or the ground terminal;

[0018] Preferably, the anode tube does not contact the cathode nozzle or the cathode head;

[0019] Preferably, the inner diameter of the cathode nozzle is smaller than the inner diameter of the anode tube;

[0020] Preferably, the upper shell and the lower shell are fixed together by bolts, and the lower shell is also equipped with an air inlet device for supplying gas to the furnace head cavity;

[0021] This utility model also proposes an electric flame stove, including a burner head with dual discharge zones as described in any one of the above-mentioned methods.

[0022] Compared with the prior art, the advantages of this utility model are:

[0023] This utility model achieves a balance between ease of installation and structural stability through a simple connection and installation method using structured components and a conical, fault-tolerant design for the cathode head, thereby improving installation efficiency and further reducing installation costs.

[0024] The annular cooling channel of this invention cools the anode tube in a timely manner, and the second and third air guide holes exchange heat with the cathode head. The fluid cools the anode tube and cathode nozzle, thus extending the service life of the furnace head accessories.

[0025] The "secondary excitation" of plasma and the contraction of the outlet of the second discharge region in this invention make the high-energy plasma in a more dense state, increase the collision frequency between high-energy particles, and ultimately significantly improve the overall energy state of the plasma.

[0026] The novel plasma "secondary excitation" and the contraction effect of the second discharge zone outlet increase the density of high-energy particles in the plasma, thereby accelerating ozone decomposition.

[0027] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a cross-sectional view of the burner head of this utility model.

[0030] Figure 2 yes Figure 1 Enlarged view of the area within circle A.

[0031] Figure 3 This is a structural diagram of the lower shell of this utility model.

[0032] Figure 4 This is a structural diagram of the upper shell of this utility model.

[0033] Figure 5 This is a structural diagram of the ceramic tube in this utility model.

[0034] Figure 6 This is a structural diagram of the anode tube of this utility model.

[0035] Figure 7 This is a structural diagram of the cathode nozzle of this utility model. Detailed Implementation

[0036] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Furthermore, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components; they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0040] Please see Figures 1 to 7 In this embodiment of the present invention, a dual-discharge zone furnace head includes: an upper shell 1, a lower shell 2, and a plurality of anode tubes 5; the upper shell 1 and the lower shell 2 together form a furnace head cavity 100;

[0041] In this embodiment of the utility model, an annular cooling channel 300 is formed between the inner wall of the upper ceramic tube 4 and the outer wall of the anode tube 5. The air supplied by the air intake device 7 increases the air pressure in the furnace head cavity 100. The air enters the annular cooling channel 300 through the first air guide hole 42 and flows along the outer wall of the anode tube 5. The heat generated by the discharge of the anode tube 5 is carried away by heat exchange. Then the airflow is discharged through the second air guide hole and enters the first discharge zone 400.

[0042] Air in the furnace head cavity 100 simultaneously enters the lower ceramic tube 6 directly from the third air guide hole 62, and the gas flows through the surface of the conical cathode head 21, absorbs its heat, and then naturally flows into the first discharge zone 400.

[0043] In this embodiment of the invention, the airflow is not only a cooling medium, but also a "carrier" for plasma generation. Specifically, the air cooling the cathode head 21 through the third air guide hole 62 and the air leading out through the second air guide hole merge in the first discharge zone 400. The merged airflow is in a high voltage difference environment between the anode tube 5 (positive electrode) and the cathode head 21 (negative electrode side). At the same time, under the action of a strong magnetic field, the gas molecules are ionized to form the initial plasma.

[0044] Under the influence of high atmospheric pressure, the initial plasma flows into the second discharge region 500, where it undergoes "secondary excitation". The high-frequency collisions between high-heat electrons and neutral molecules allow more molecules to break through the energy barrier and enter a higher excited state, forming a high-energy excited state plasma.

[0045] The formation of high-energy excited-state plasma is due to the initial plasma providing a large number of "pre-activated" charged particles, which lowers the "startup energy" for secondary excitation. The energy of the secondary electric field is concentrated on increasing particle energy rather than being consumed in initial ionization, resulting in a "number of high-energy particles" generated per unit energy input that is several times greater than that of a single-stage excitation. Secondary excitation triggers an "electron avalanche effect," where the collision frequency between high-energy particles increases with concentration. A single superthermal electron excites multiple molecules, which in turn excite more particles through collisions, ultimately leading to a significant increase in the overall energy state of the plasma.

[0046] In this embodiment of the invention, when the high-energy excited-state plasma after secondary excitation enters the cathode nozzle 3, its inner diameter decreases, resulting in a significant increase in plasma velocity as it passes through the nozzle 3, achieving highly efficient jetting. This high-speed jetting plasma can act more powerfully on the surface of the cookware, reducing energy loss during transmission and improving heating efficiency.

[0047] In embodiments of this invention, the structure of the first discharge region 400 and the second discharge region 500 enables the initial plasma to be "secondarily excited." Through the high voltage difference in the second discharge region 500, the initial plasma is "energy-enhanced," increasing the proportion of high-energy particles in the plasma. These high-energy particles not only more efficiently trigger heat release reactions but also collide with the already generated ozone, decomposing it into oxygen (O3 + high-energy particles → O2 + O).

[0048] Meanwhile, the design of the inner diameter of the cathode nozzle 3 being smaller than that of the anode tube 5 allows the high-energy plasma after secondary excitation to be in a more concentrated and high-temperature state during high-speed jetting, and the dense particle collisions accelerate ozone decomposition.

[0049] In this embodiment of the utility model, the upper housing 1 is provided with a plurality of cathode nozzles 3 corresponding to the anode tube 5, and the lower housing 2 is provided with a plurality of cathode heads 21 corresponding to the anode tube 5; an upper ceramic tube 4 is provided between the cathode nozzles 3 and the anode tube 5, and a lower ceramic tube 6 is provided between the anode tube 5 and the cathode head 21; an anode mounting ring 51 is provided on the outer side of the bottom of the anode tube 5, the anode mounting ring 51 abuts against the top surface of the lower ceramic tube 6, a limiting ring 41 is provided at the upper end of the inner part of the upper ceramic tube 4, and the top surface of the anode tube 5 abuts against the limiting ring 41 around the circumference.

[0050] In this embodiment of the present invention, a cathode mounting ring 31 is provided on the outer side of the bottom of the cathode nozzle 3, and the upper housing 1 is provided with a plurality of through holes 11 corresponding to the cathode nozzle 3. The diameter of the through holes 11 is slightly larger than the outer diameter of the cathode nozzle 3, and the diameter of the through holes 11 is slightly smaller than the outer diameter of the cathode mounting ring 31.

[0051] In this embodiment of the present invention, a wire groove 43 is provided at the bottom of the wall of the upper ceramic tube 4, and the wire groove 43 penetrates the wall of the upper ceramic tube 4.

[0052] In this embodiment of the present invention, during installation, the cathode nozzle 3 is first passed through the through hole 11 of the upper housing 1 from bottom to top, so that the cathode mounting ring 31 abuts against the edge of the through hole 11 of the upper housing 1, and the cathode nozzle 3 is initially fixed by the size limitation of the cathode mounting ring 31.

[0053] The upper end face of the upper ceramic tube 4 is brought into contact with the cathode mounting ring 31. The groove 44 on the upper end face of the upper ceramic tube 4 can just accommodate the cathode mounting ring 31. Through the cooperation between the groove 44 and the cathode mounting ring 31, the upper ceramic tube 4 and the cathode nozzle 3 are accurately positioned.

[0054] The installation of the anode tube 5 is also simple. The anode mounting ring 51 of the anode tube 5 is pre-welded with a wire. The top surface of the anode tube 5 is aligned with the limiting ring 41 inside the upper ceramic tube 4. The limiting ring 41 is used to restrict the upper position of the anode tube 5. The anode mounting ring 51 at the bottom of the anode tube 5 is embedded into the bottom of the upper ceramic tube 4. At the same time, the wire naturally falls into the wire groove 43 of the upper ceramic tube 4. Then, the upper end face of the lower ceramic tube 6 abuts against the bottom surface of the anode mounting ring 51 to complete the upper and lower positioning of the anode tube 5.

[0055] Finally, the lower housing 2 is installed below the lower ceramic tube 6. The cathode head 21 of the lower housing 2 is conical, and its shape allows for a certain calibration error. This makes it easy to embed multiple cathode heads 21 into the lower end of the corresponding lower ceramic tube 6. After the lower ceramic tube 6 is sleeved with the cathode head 21, the bottom surface of the lower ceramic tube 6 abuts against the edge of the cathode head 21 of the lower housing 2. The upper housing 1 and the lower housing 2 are then fixed with bolts to complete the installation of the entire furnace head.

[0056] The burner head accessories do not require welding, threaded connections, or other complex connections. Therefore, when installing a high-power electric flame stove burner head, which typically consists of hundreds of plasma anodes, cathodes, insulating ceramics, and other components, this utility model achieves a balance between ease of installation and structural stability through a simple connection and installation method using structured components and a conical, fault-tolerant design for the cathode head 21. This improves installation efficiency and further reduces installation costs.

[0057] In this embodiment of the invention, the multiple cathode heads 21 and the lower housing 2 are an integrated metal structure, the upper housing 1 is a metal structure and is connected to the negative terminal of the power supply or the ground terminal; the anode tube 5 is electrically connected to the positive terminal of the power supply through a wire connected to its anode mounting ring 51, and the anode tube 5, cathode nozzle 3, and cathode heads 21 do not contact each other. When the electric flame stove is in operation, high voltage is input to the anode tube 5 through the wire. The high voltage difference between the bottom of the anode tube 5 and the cathode head 21 forms a first discharge zone 400, and the high voltage difference between the discharge head 53 at the top of the anode tube 5 and the cathode nozzle 3 forms a second discharge zone 500.

[0058] This utility model also proposes an electric flame stove, including a burner head with dual discharge zones as described above.

[0059] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A burner head with dual discharge zones, characterized in that, include: The furnace consists of an upper shell, a lower shell, and multiple anode tubes; the upper shell and the lower shell together form a furnace head cavity. The upper housing is provided with a plurality of cathode nozzles corresponding to the anode tube, the lower housing is provided with a plurality of cathode heads corresponding to the anode tube, an upper ceramic tube is provided between the cathode nozzles and the anode tube, and a lower ceramic tube is provided between the anode tube and the cathode head; An anode mounting ring is provided on the outer side of the bottom of the anode tube, and the anode mounting ring abuts against the top surface of the lower ceramic tube. A limit ring is provided at the upper end of the inner side of the upper ceramic tube, and the top surface of the anode tube abuts against the limit ring around its circumference. The upper ceramic tube has multiple first air guide holes in its tube wall, the anode mounting ring has multiple second air guide holes, and the lower ceramic tube has multiple third air guide holes in its tube wall.

2. The furnace head with dual discharge zones according to claim 1, characterized in that, A first discharge region is formed between the cathode head and the bottom of the anode tube, and an annular discharge head is provided at the top of the anode tube, forming a second discharge region between the discharge head and the cathode nozzle.

3. The burner head with dual discharge zones according to claim 1, characterized in that, The bottom of the upper ceramic tube is provided with a wire groove, which penetrates the tube wall of the upper ceramic tube.

4. The furnace head with dual discharge zones according to claim 1, characterized in that, A cathode mounting ring is provided on the outer side of the bottom of the cathode nozzle. The upper housing has multiple through holes corresponding to the cathode nozzle. The diameter of the through holes is slightly larger than the outer diameter of the cathode nozzle, and the diameter of the through holes is slightly smaller than the outer diameter of the cathode mounting ring.

5. The burner head with dual discharge zones according to claim 1, characterized in that, Multiple cathode heads are integrated with the lower housing as a single metal structure, and the upper housing is a metal structure connected to the negative terminal of the power supply or the ground terminal.

6. The furnace head with dual discharge zones according to claim 1, characterized in that, The anode tube does not contact the cathode nozzle or the cathode head.

7. The furnace head with dual discharge zones according to claim 1, characterized in that, The inner diameter of the cathode nozzle is smaller than the inner diameter of the anode tube.

8. The furnace head with dual discharge zones according to claim 1, characterized in that, The upper shell and the lower shell are fixed together by bolts, and the lower shell is also equipped with an air intake device for supplying gas to the furnace head cavity.

9. An electric flame stove, characterized in that, A furnace head including any one of the dual discharge zones as described in claims 1 to 8.

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