Electric flame stove capable of effectively inhibiting ozone overflow

Abstract

The utility model discloses an electric flame stove capable of effectively restraining ozone from overflowing. The electric flame stove comprises a stove body, a burner installed on the stove body and a hydrogen pipe. According to the utility model, the electrodes are used for spraying hydrogen, so that the hydrogen can be quickly diffused in the plasma burner and is in full contact with ozone generated by discharging, the ozone is timely converted into harmless substances such as oxygen and the like, the ozone overflow is reduced to the greatest extent, and the risk caused by insufficient combustion of the hydrogen is also reduced; according to the utility model, the electrodes are adopted to inject hydrogen, so that additional ejectors are reduced, the manufacturing cost is reduced, and the structure of the electric flame stove is simplified; according to the utility model, the electrodes are used for spraying hydrogen, so that the plasma obtains higher temperature, and the plasma spraying speed and the plasma spraying distance are improved; the furnace end has a simplified structure and a simple mounting and dismounting mode, so that the difficulty and the workload of mounting and maintenance are greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to an electric flame cooker capable of effectively inhibiting ozone overflow, in particular to the electric flame cooker. BACKGROUND

[0002] In today's society, electric flame cookers are increasingly popular and widely used as a fast and efficient cooking device. The working principle of the electric flame cooker is mainly that an electric arc is formed by electrode shock, and the pot is heated by the joule heat of the electric arc. However, the problem of ozone generated during the use of traditional electric flame cookers has gradually attracted people's attention. Ozone is a strong oxidizing agent, which is harmful to the respiratory system and eyes of the human body, and long-term contact may cause health problems.

[0003] Therefore, it is an urgent technical problem to develop an electric flame cooker that can eliminate or inhibit ozone. In the prior art, the utility model patent with the application number CN202311071564.X proposes an electric flame cooker capable of inhibiting ozone. The ejector of this patent is connected with the electric valve and the hydrogen tank through the conduit, and the ejector is also provided with a plurality of injection holes for injecting hydrogen. By adding hydrogen to mix and burn with ozone, the ozone is effectively eliminated or inhibited. The hydrogen ejector in the hearth of the utility model is tested, and long-term high temperature may cause the deformation or damage of the ejector, which may cause hydrogen leakage and accidents. Even if the ejector is made of better high-temperature-resistant materials, the high temperature of the plasma will also affect the service life of the ejector, and finally there is still a risk of leakage.

[0004] Therefore, the utility model patent with the application number CN202410719922.1 proposes an electric flame cooker capable of inhibiting ozone emission. The ejector of this utility model is installed in the annular channel between the back of the inner hearth ring and the outer hearth ring, so that the ejector is not directly exposed to the high temperature of the plasma jet, the components will not be affected by extreme temperature, the safety hazard is eliminated, and the service life of the ejector is prolonged. At the same time, this scheme effectively dilutes the ozone emitted in the working state of the electric flame cooker. The utility model solves the problem of easy hydrogen leakage, but the hydrogen gas generated in the outer hearth ring is burned, which heats the outer circle of the pot bottom, making the outer circle of the pot lacking water or oil easy to scorch, and the food in the center of the pot that needs to be heated (stir-fried) cannot get enough heat.

[0005] The two existing technical solutions also have the following problems: introducing hydrogen into the hearth is carried out in a relatively large space, the contact and reaction between hydrogen and ozone are relatively inefficient, combustion is not sufficient, part of the ozone is not eliminated in time and overflowed, and the risk of hydrogen leakage is increased. UTILITY MODEL CONTENT

[0006] The utility model is aimed at providing a technical solution to solve the above problems.

[0007] An electric flame stove capable of effectively inhibiting ozone overflow, comprising a stove body, a burner head mounted on the stove body, and a hydrogen gas pipe;

[0008] The burner head comprises a burner head shell with an internal cavity and a plurality of plasma burners mounted in the burner head shell;

[0009] The plasma burners are composed of a flame jet pipe, a ceramic pipe and an electrode arranged coaxially;

[0010] The ceramic pipe has a structure with a large upper end and a small lower end, and a plurality of tangential holes are arranged on the upper end wall of the ceramic pipe;

[0011] The electrode has a hollow structure with a large upper end and a small lower end, and the lower end of the electrode is mounted on the lower end of the ceramic pipe;

[0012] The lower end of the electrode penetrates the lower end of the ceramic pipe, and the tail end of the electrode is connected to the hydrogen gas pipe, and a small hydrogen gas tank is connected through the hydrogen gas pipe; the head end of the electrode is closed, and a plurality of jet holes are arranged on the head end wall of the electrode;

[0013] Preferably, the convex ring at the lower end of the flame jet pipe abuts against the top end of the burner head shell, and the upper end of the flame jet pipe extends upward through the top end of the burner head shell;

[0014] Preferably, the flame jet pipe has a tapered structure with a gradually reduced upper end;

[0015] Preferably, the bottom surface of the flame jet pipe abuts against the top surface of the ceramic pipe; the upper end of the ceramic pipe abuts against the bottom end of the burner head shell, and the lower end of the ceramic pipe extends downward through the bottom end of the burner head shell;

[0016] Preferably, the shell is further provided with an air suction fan;

[0017] Preferably, the upper end of the electrode abuts against the bottom of the upper end of the ceramic pipe, and the tail end of the electrode is threadedly fixed to the hydrogen gas pipe, so that the electrode is fixed to the lower end of the ceramic pipe.

[0018] Compared with the prior art, the electric flame stove has the following advantages:

[0019] The electrode sprays hydrogen gas, so that the hydrogen gas can be quickly diffused in the plasma burner and fully contacted with the ozone generated by discharge, the ozone is timely converted into harmless substances such as oxygen, and the ozone overflow is maximally reduced, and the risk caused by insufficient combustion of hydrogen gas is also reduced;

[0020] The electrode sprays hydrogen gas, so that the ejector is not additionally increased, the manufacturing cost is reduced, and the structure of the electric flame stove is simplified;

[0021] The electrode sprays hydrogen gas, so that the plasma obtains a higher temperature, and the plasma jet speed and jet distance are improved;

[0022] The utility model discloses a furnace end simplified structure and simple installation and dismounting mode, greatly reduced the difficulty and work load of installation and maintenance.

[0023] The additional aspects and advantages of the utility model will be partly given in the following description, and some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description is only some embodiments of the utility model, and for the ordinary skilled person in the art, under the premise of not paying the creative labor, other drawings can also be obtained according to these drawings.

[0025] Figure 1 It is the sectional view of the utility model.

[0026] Figure 2 It is the perspective view of the utility model.

[0027] Figure 3 It is the perspective view of the plasma burner of the utility model.

[0028] Figure 4 It is the explosion view of the plasma burner of the utility model.

[0029] Figure 5 It is the sectional view of the plasma burner of the utility model. DETAILED DESCRIPTION

[0030] The technical scheme in the embodiments of the utility model will be clearly and completely described below, obviously, the described embodiments are only some embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled person in the art without creative labor belong to the protection scope of the utility model.

[0031] In the description of the utility model, it needs to be explained that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relation based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it can not be understood as the limitation to the utility model.

[0032] Furthermore, in the description of the utility model, unless there is another explicit provision and limitation, the terms "mounting", "connecting", "connection" and the like should be broadly understood, for example, it can be fixed connection, or it can be detachable connection, or integral connection, it can be mechanical connection, or it can be electrical connection, it can be direct connection, or it can be indirect connection through intermediate medium, it can be internal communication of two elements, it can be wireless connection, or it can be wired connection, for ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0033] In addition, the technical features involved in the different embodiments of the utility model described subsequently can be combined with each other as long as they do not conflict with each other.

[0034] Please refer to Figures 1-4 , the utility model discloses an effective inhibition ozone spill electric flame stove, including: stove body 1, the burner 2 of installing on stove body 1 and hydrogen pipe 3;

[0035] The burner 2 includes a burner shell 20 with an internal cavity and a plurality of plasma burners 200 installed in the burner shell 20.

[0036] As Figures 3-5 shown, the plasma burner 200 is composed of a flame jet pipe 210, a ceramic pipe 220 and an electrode 230 arranged coaxially.

[0037] The ceramic pipe 220 has a structure with a large pipe diameter at the upper end and a small pipe diameter at the lower end, and a plurality of tangential holes 221 are provided on the upper end pipe wall, so that the external gas entering from the tangential holes 221 forms a specific cyclone in the ceramic pipe 220, increases the gas residence time, and makes the gas be fully ionized to generate plasma, and can maintain high energy density and stability after generation.

[0038] The hollow structure of the electrode 230 provides a special delivery channel for hydrogen gas from the hydrogen pipe 3 connected at the tail end to the primary end jet hole 231, forming a relatively closed and stable hydrogen gas delivery path.

[0039] The gradual structure of the electrode 230 with a large pipe diameter at the upper end and a small pipe diameter at the lower end allows the hydrogen gas to flow inside the electrode 230 first at the lower end small pipe diameter part to maintain a certain flow rate and pressure, and after entering the upper end large pipe diameter part, there is a buffer space, so that the hydrogen gas can be more uniformly dispersed.

[0040] And the plurality of jet holes 231 provided on the primary end pipe wall further refine the hydrogen gas into multiple uniform gas streams, ensuring that when the hydrogen gas enters the plasma region inside the plasma burner 200, it can be distributed in a more uniform state.

[0041] The hydrogen gas is sprayed from the spray hole 231 of the electrode 230 to hit the wall of the spray pipe 210, and is required to be fully mixed with the spiral plasma in the plasma burner 200 and chemically combusted, so that the ozone is timely converted into harmless substances such as oxygen during the combustion process.

[0042] The structure of the electrode 230 ensures that the hydrogen gas can efficiently participate in the reaction with the ozone, maximally reduces the situation that the ozone is not treated and spills out of the burner 200, improves the ozone suppression effect, and avoids hydrogen gas leakage.

[0043] The specific working principle of the utility model is as follows:

[0044] After the power supply of the plasma burner 200 is turned on, a high voltage is applied between the cathode and the anode to form a strong electric field. Under the action of the strong electric field, the gas molecules in the burner 200 are ionized, so that the atoms in the gas lose or gain electrons to form plasma containing a large number of electrons, ions and neutral particles. Such plasma has extremely high energy and activity, and the temperature can reach several thousand or even tens of thousands of degrees.

[0045] At the same time, the hydrogen gas from the small hydrogen gas tank 5 is transported to the lower end of the electrode 230 through the hydrogen gas pipe 3. Since the electrode 230 is a hollow structure, the hydrogen gas can smoothly transmit upward along the hollow channel. After reaching the head end of the electrode 230, the hydrogen gas is blocked by the closed top surface of the head end, and can only be sprayed out from the multiple spray holes 231 of the head end pipe wall.

[0046] The structure design of the large pipe diameter at the upper end and the small pipe diameter at the lower end of the electrode 230 has multiple advantages. On the one hand, the small pipe diameter at the lower end is beneficial to the close connection with the hydrogen gas pipe 3, ensuring stable hydrogen gas transportation and reducing the risk of leakage; on the other hand, the large pipe diameter at the upper end provides a buffer space for the hydrogen gas, so that the hydrogen gas can be more uniformly distributed inside the electrode 230 before being sprayed out, thereby ensuring that the hydrogen gas can enter the plasma reaction area at a relatively uniform flow rate, flow and angle when being sprayed out from the spray holes 231.

[0047] The outer gas enters the annular space between the ceramic pipe 220 and the electrode 230 from the tangential holes 221 on the upper end of the pipe wall of the ceramic pipe 220 to form a cyclone. The rotating plasma meets and fully mixes with the hydrogen gas sprayed out from the spray holes 231 of the electrode 230. After mixing, the gas can efficiently react with the ozone generated by the discharge of the electrode 230 in the plasma environment, and the ozone is converted into harmless substances such as oxygen by using the reducing property of the hydrogen gas, thereby realizing the effect of suppressing the ozone spillage.

[0048] The hydrogen is combusted in the plasma burner 200 to ensure that the electric flame continuously and efficiently generates heat and concentrates the heat to be sprayed and to heat the center of the pot bottom to effectively heat the position. During the whole process, the unique structure design of the electrode 230 ensures the accurate supply and efficient use of hydrogen, optimizes the gas mixing and reaction environment in cooperation with the ceramic tube 220 and other components, improves the comprehensive performance of the electric flame, and effectively prevents hydrogen leakage and ozone overflow.

[0049] The jet pipe 210 is tapered with a gradually reduced upper end. According to the principle of fluid mechanics, the gradually reduced cross-sectional area of the pipe promotes the acceleration of the gas flow rate. The combustion of hydrogen increases the energy and temperature of the plasma, and the higher energy and temperature make the flame generated by the plasma combustion more concentrated and powerful. In addition, the jet pipe 210 is designed to be tapered, so that the mixed flame is sprayed out of the jet pipe 210 at a faster speed.

[0050] The shell 20 is also provided with an air suction fan 4, which can introduce external air into the interior of the plasma burner 200 to supplement the gas in the interior of the plasma burner 200.

[0051] In the embodiment of the utility model, the utility model furnace end 2 structure is relatively simple, and installation is also simple:

[0052] The electrode 230 is installed by abutting the upper end against the bottom of the upper end of the ceramic tube 220 and threadedly fixing the hydrogen pipe 3 at the end. This not only ensures the convenience of installing the electrode 230, but also makes it easy to maintain or replace the electrode 230. When the electrode 230 needs to be maintained or replaced, the electrode 230 can be taken out from above the jet pipe 210 by reversely unscrewing the threaded connection between the end of the electrode 230 and the hydrogen pipe 3. The whole process is relatively simple and direct, and does not require large-scale disassembly of the whole furnace end 2, greatly reducing the difficulty and workload of maintenance.

[0053] The convex ring at the lower end of the jet pipe 210 abuts against the top end of the furnace end shell 20, and the upper end of the jet pipe 210 extends upward through the top end of the furnace end shell 20. The bottom surface of the jet pipe 210 abuts against the top surface of the ceramic tube 220. The upper end of the ceramic tube 220 abuts against the bottom end of the furnace end shell 20, and the lower end of the ceramic tube 220 extends downward through the bottom end of the furnace end shell 20. The jet pipe 210 and the ceramic tube 220 are installed in an abutting manner. After abutting, the final fixation of the jet pipe 210 and the ceramic tube 220 is realized by clamping and pressing the furnace end shell 20. This way ingeniously integrates each component into a stable whole.

[0054] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and are non-limiting, the scope of the present application being defined by the appended claims rather than by the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. An electric flame grill effective to inhibit ozone spillage, comprising: A stove body, a burner head mounted on the stove body, and a hydrogen gas pipe; characterized in that: The burner head comprises a burner head shell with an internal cavity and a plurality of plasma burners mounted in the burner head shell; The plasma burners are composed of a flame jet pipe, a ceramic pipe and an electrode arranged coaxially; The ceramic pipe has a structure with a large pipe diameter at the upper end and a small pipe diameter at the lower end, and a plurality of tangential holes are arranged on the upper end pipe wall; The electrode has a hollow structure with a large pipe diameter at the upper end and a small pipe diameter at the lower end, and the lower end is mounted on the lower end of the ceramic pipe; The lower end of the electrode penetrates the lower end of the ceramic pipe, and the electrode tip is connected to the hydrogen gas pipe and communicates with a small hydrogen gas tank through the hydrogen gas pipe; the first end of the electrode is closed, and a plurality of injection holes are arranged on the first end pipe wall.

2. The electric flame burner of claim 1, wherein, The convex ring at the lower end of the flame jet pipe abuts against the top end of the burner head shell, and the upper end of the flame jet pipe extends upward through the top end of the burner head shell.

3. The electric flame burner of claim 2, wherein, The flame jet pipe is tapered with a gradually narrowing upper end.

4. The electric flame burner of claim 3, wherein, The bottom surface of the flame jet pipe abuts against the top surface of the ceramic pipe; the upper end of the ceramic pipe abuts against the bottom end of the burner head shell, and the lower end of the ceramic pipe extends downward through the bottom end of the burner head shell.

5. The electric flame simulator of claim 1, wherein: An air suction fan is further arranged on the shell.

6. The electric flame simulator of claim 1, wherein: The upper end of the electrode abuts against the bottom of the upper end of the ceramic pipe, and the electrode tip is threadedly fixed to the hydrogen gas pipe, so that the electrode is fixed to the lower end of the ceramic pipe.

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