Atmospheric and infrared combined stove

Abstract

The utility model relates to the technical field of combustion furnace ends, and provides an atmosphere type and infrared ray combined stove which comprises a furnace end main body, a central atmosphere type combustion structure, an outer ring atmosphere type combustion structure and an outer ring infrared ray combustion structure are arranged at the combustion position of the furnace end main body, and the outer ring infrared ray combustion structure comprises a plurality of infrared ray combustion pieces. A separation groove is formed between every two adjacent infrared combustion pieces, and the end of the outer ring atmosphere type combustion structure is limited on the separation grooves. A ceramic honeycomb plate of an outer ring infrared ray combustion structure is designed into a plurality of split infrared ray combustion parts, a separation groove is formed between every two adjacent infrared ray combustion parts, the separation grooves form an installation gap for installing the outer ring atmospheric combustion structure, and the separation grooves are arranged between the infrared ray combustion parts in the process from heating to cooling of the infrared ray combustion parts. Enough thermal expansion and cold contraction space is provided for the infrared combustion part, the ceramic honeycomb plate is prevented from being exploded due to thermal expansion and cold contraction, a thermal expansion and cold contraction deformation interval for thermal expansion and cold contraction of the infrared combustion part is formed by the separation grooves, and the service life of the ceramic honeycomb plate is longer.

Description

Technical Field

[0001] This utility model relates to the field of combustion burner technology, specifically to an atmospheric and infrared combined stove. Background Technology

[0002] Existing infrared combustion burners (infrared burners) use porous ceramic honeycomb panels as the combustion head. These panels are made of special refractory materials and form infrared radiation plates. When the flame burns, the ceramic honeycomb panel converts the flame into infrared radiation, accelerating the heating process. Due to this infrared radiation, the performance of the gas stove is greatly improved. Working principle: When the gas stove is working, gas enters the stove through the inlet pipe, is regulated by the gas valve (by the user via a knob), and then enters the burner head. After passing through the ignition needle and thermocouple, the gas ignites and heats the ceramic honeycomb panel.

[0003] However, when using an infrared burner, the heat level cannot be adjusted as quickly as a flame-type burner. For example, when the infrared burner needs to reduce its heat, the ceramic honeycomb panel needs to cool down, and its heating power cannot decrease immediately; similarly, when the infrared burner needs to increase its heat, the ceramic honeycomb panel needs to heat up, and its heating power cannot increase immediately. Therefore, the heat adjustment of an infrared burner exhibits a lag.

[0004] In addition, the pot rack is located above the ceramic honeycomb panel of the infrared burner. When the ceramic honeycomb panel of the infrared burner is heated, the heat radiation generated by the ceramic honeycomb panel is transferred to the pot rack. The heat is reflected back to the ceramic honeycomb panel after being reflected by the pot rack. If the temperature of the reflected heat is high, there is a risk that the ceramic honeycomb panel will crack.

[0005] The ceramic honeycomb panel is a single piece of ceramic honeycomb panel installed at the combustion position of the burner head. During the combustion and cooling process, the ceramic honeycomb panel will undergo thermal expansion and contraction. If the gap between the ceramic honeycomb panel and the burner head is small, when the ceramic honeycomb panel expands during heating, there is not enough space for the ceramic honeycomb panel to expand and deform, which can easily lead to the risk of the ceramic honeycomb panel cracking.

[0006] When infrared and atmospheric open flame combustion are arranged in a ring around a stove, the atmospheric open flame combustion cannot replenish secondary air. In household stoves, the outer ring of the open flame, lacking a secondary air supply channel, results in excessive smoke emissions. Furthermore, because infrared combustion has a narrow heat adjustment range, it is difficult to adjust for tasks requiring a medium to stable heat, such as frying fish, eggs, pancakes, or making soup. Utility Model Content

[0007] This invention proposes a combined atmospheric and infrared combustion stove. The ceramic honeycomb panel of the outer ring infrared combustion structure is designed as several separately arranged infrared combustion elements. A partition groove is provided between adjacent infrared combustion elements (ceramic honeycomb panels). This partition groove forms an installation gap for the outer ring atmospheric combustion structure, allowing simultaneous combustion of the outer ring atmospheric flame and the outer ring infrared flame. Furthermore, this partition groove provides sufficient space for thermal expansion and contraction of the infrared combustion elements (ceramic honeycomb panels) during the heating and cooling process, preventing the ceramic honeycomb panel from cracking due to thermal expansion and contraction. The partition groove also provides a deformation range for adjacent infrared combustion elements, extending the service life of the ceramic honeycomb panel. It also solves the problem that gas combustion and infrared combustion cannot be used simultaneously in the same combustion position.

[0008] An atmospheric and infrared combination stove designed for this purpose includes a burner body. The burner body has a central atmospheric combustion structure, an outer ring atmospheric combustion structure and an outer ring infrared combustion structure at the combustion position. The outer ring atmospheric combustion structure and the outer ring infrared combustion structure are both located outside the central atmospheric combustion structure.

[0009] The outer ring infrared combustion structure includes several infrared combustion elements, with a partition groove between two adjacent infrared combustion elements, and the outer ring atmospheric combustion structure is set on the partition groove.

[0010] The two adjacent infrared combustion elements are arranged separately, and the dividing groove runs through the inner and outer sides of the two adjacent infrared combustion elements.

[0011] The central atmospheric combustion structure burns independently as a small flame in the main body of the furnace.

[0012] The central atmospheric combustion structure and the outer annular atmospheric combustion structure burn simultaneously in the medium-fire state of the main body of the furnace head;

[0013] The central atmospheric combustion structure and the outer ring infrared combustion structure burn simultaneously to form the main body of the furnace in a high-fire state.

[0014] The central atmospheric combustion structure, the outer annular atmospheric combustion structure, and the outer annular infrared combustion structure burn simultaneously, creating a high-fire state for the main body of the furnace.

[0015] The dividing groove provides a range for thermal expansion and contraction deformation of the adjacent infrared combustion element.

[0016] The upper part of the burner head body is provided with a pot rack, and the pot rack is provided with several support legs for supporting cooking containers;

[0017] Each support leg is positioned vertically opposite to a partition groove, with the support leg located directly above the partition groove. The partition groove forms an infrared heat radiation shielding space for the outer ring infrared combustion structure, ensuring that the vertical upward heat radiation from the infrared combustion element is not blocked by the support leg.

[0018] The area outside the partition groove that is not blocked by the outer ring infrared combustion structure and the main body of the furnace head constitutes the oxygen replenishment area of ​​the outer ring atmospheric combustion structure, so that the outer ring atmospheric combustion structure and the outer ring infrared combustion structure can burn simultaneously.

[0019] During the simultaneous combustion of the outer annular atmospheric combustion structure and the outer annular infrared combustion structure, the gas output from the outer annular atmospheric combustion structure to the outside of the separator is fully combusted under the high-temperature catalytic effect of the infrared radiation from the outer annular infrared combustion structure.

[0020] The upper part of the burner head body is the combustion zone, and the central atmospheric combustion structure, the outer ring atmospheric combustion structure, and the outer ring infrared combustion structure are integrated in the combustion zone of the burner head body.

[0021] The furnace head body is provided with an infrared combustion mixing chamber, and the infrared combustion mixing chamber is provided with an outer ring atmospheric air intake channel.

[0022] Both the outer ring atmospheric combustion structure and the outer ring infrared combustion structure are located in the upper part of the infrared combustion mixing chamber.

[0023] The output end of the outer annular atmospheric intake channel is connected to the input end of the outer annular atmospheric combustion structure.

[0024] The outer ring atmospheric intake channel and the infrared combustion mixing chamber are located outside the central atmospheric combustion structure.

[0025] The burner head body is provided with a central fire intake channel, and a central atmospheric combustion structure is set on the output end of the central fire intake channel.

[0026] The burner head body is equipped with an inner cylinder. The central fire intake channel extends into the inner cylinder and upwards. The central atmospheric combustion structure is located at the upper part of the inner cylinder. The outer ring atmospheric intake channel and the infrared combustion mixing chamber are located on the outer side of the inner cylinder. The inner side of the outer ring atmospheric combustion structure and the inner side of the outer ring infrared combustion structure are located on the upper part of the inner cylinder.

[0027] The inner cylinder has a through cavity running vertically. The inner cylinder cavity forms an air supply cavity for installing a fixed support and connecting to the outside air, so as to achieve oxygen supply during the combustion process of the central atmospheric combustion structure. The fixed support is equipped with a thermocouple and an ignition needle, and the central atmospheric combustion structure is located between the thermocouple and the ignition needle.

[0028] The inner cylinder is positioned at a lower height on the burner head than the outer ring infrared combustion structure, causing the upper surface of the outer ring infrared combustion structure to form an energy-concentrating concave surface.

[0029] The inner cylinder has a cylindrical or conical shape.

[0030] The inner cylinder is provided with an inner cylinder air hole on the top side, and the output end of the outer ring atmospheric air inlet channel is connected to the inner cylinder air hole.

[0031] The outer ring atmospheric air intake channel is located around the inner cylinder and forms an air supply channel that communicates with the inner cylinder air hole. The gas enters the inner cylinder cavity through the air supply channel and the inner cylinder air hole. After the gas is ignited, a combustion flame is formed at the top of the inner cylinder, so that the top of the inner side of the inner cylinder forms the inner cylinder combustion part of the outer ring atmospheric combustion structure.

[0032] The inner cylinder combustion section is located between the central atmospheric combustion structure and the outer ring infrared combustion structure.

[0033] The inner cylinder has several circumferentially spaced air holes.

[0034] The outer ring atmospheric intake channel includes an outer ring atmospheric intake pipe and an outer ring atmospheric branch pipe connected to the outer ring atmospheric intake pipe. The outer ring atmospheric combustion structure is connected to the outer ring atmospheric branch pipe.

[0035] The outer ring atmospheric intake pipe is equipped with an outer ring atmospheric ejector at its intake end.

[0036] The gas supply channel is connected to the outer ring atmospheric intake pipe;

[0037] The gas supply channel and the outer ring atmospheric branch pipe are configured as a whole, and the gas supply channel is located between the outer ring atmospheric branch pipe and the inner cylinder.

[0038] Alternatively, the gas supply channel and the outer ring atmospheric bronchus are set up separately;

[0039] The furnace head body is equipped with an outer ring infrared combustion ejector tube that connects to the infrared combustion mixing chamber.

[0040] The central fire air intake channel includes a vertical gas pipe extending upward into the inner cylinder and a central fire combustion ejector pipe inserted horizontally into the main body of the furnace head. The central atmospheric combustion structure and the vertical gas pipe are connected to the central fire combustion ejector pipe.

[0041] The overall shape of the outer ring atmospheric intake pipe and the outer ring atmospheric ejector pipe is P-shaped, Y-shaped, or 9-shaped.

[0042] The outer ring atmospheric combustion structure includes an outer ring atmospheric combustion element installed on the partition groove. Each partition groove is provided with an outer ring atmospheric combustion element, and the outer ring atmospheric combustion element is provided with a number of combustion outlet holes that communicate with the outside air.

[0043] The combustion flare hole is positioned at a higher height on the furnace head body than the infrared combustion element is positioned on the furnace head body.

[0044] The infrared combustion element is a ceramic honeycomb plate, and the side cross-section of the infrared combustion element is in the shape of an arc-shaped concave plate, a straight plate, or a wavy plate. The top view projection of the infrared combustion element is elliptical, circular, arc-shaped fan, or polygonal, and the polygon is rhomboid, square, or petal-shaped. The outer ring atmospheric combustion element is tubular in shape.

[0045] The beneficial technical effects of this utility model are as follows:

[0046] The existing circular ceramic honeycomb panel is divided into several separately arranged infrared combustion elements. A partition groove is provided between adjacent infrared combustion elements (ceramic honeycomb panels). This partition groove forms an installation gap for the outer ring atmospheric combustion structure, enabling simultaneous combustion of the outer ring atmospheric flame and the outer ring infrared light. Furthermore, this partition groove provides sufficient space for thermal expansion and contraction of the infrared combustion elements (ceramic honeycomb panels) during the heating and cooling process, preventing the ceramic honeycomb panel from cracking due to thermal expansion and contraction. The partition groove also provides a deformation range for adjacent infrared combustion elements, extending the service life of the ceramic honeycomb panel. Simultaneously, it solves the problem that gas combustion and infrared combustion cannot be used simultaneously in the same combustion position.

[0047] The ceramic honeycomb panel of this product adopts a quarter-section design (which can be understood as dividing a circular ceramic honeycomb panel into four parts, hence the quarter-section design, but it can also be divided into two, three, or more parts). A whole circular ceramic honeycomb panel is prone to cracking and damage if the firing temperature is high. However, the ceramic honeycomb panel with a quarter-section design has a smaller area, so it is less likely to be damaged or broken at high firing temperatures. Therefore, the firing temperature of the ceramic honeycomb panel can be increased, thereby increasing the hardness and strength of the ceramic honeycomb panel and further extending its service life. It is more suitable for use in Chinese cooking stoves with high heat and high flow rate and medium pressure valves.

[0048] Compared with traditional open-flame gas stoves, this product has a greater firepower when using the same amount of gas, reaching the firepower of restaurant-style Chinese cooking stoves when at high flame.

[0049] Atmospheric and infrared combination cooktops are readily achievable from the structural design to product conversion, given the existing mature infrared cooktop technology, as well as the mature production processes for ceramic honeycomb panels and ejector tubes.

[0050] Existing infrared stoves have difficulty adjusting the medium flame intensity. This application adds an outer ring atmospheric combustion structure. When the central atmospheric combustion structure and the outer ring atmospheric combustion structure burn simultaneously, the main body of the burner is in a medium flame state. The medium flame intensity uses an open flame, making it easy to adjust. The medium flame intensity covers a wide range, suitable for different cooking situations. Furthermore, infrared stoves on the market (using ceramic honeycomb panels for flameless combustion) are inherently energy-saving and emission-reducing, and have high sales volume. This application uses a combination of atmospheric and infrared combustion to further enhance the competitiveness of this design in the market. Attached Figure Description

[0051] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0052] Figure 1 This is a schematic diagram of the internal structure of the furnace head body in a top view according to an embodiment of the present invention.

[0053] Figure 2 This is a schematic cross-sectional view of the main body of the furnace head according to an embodiment of the present invention.

[0054] Figure 3 This is a schematic diagram of the cross-sectional structure of the furnace head body from another angle according to an embodiment of the present invention.

[0055] Figure 4 This is a three-dimensional structural diagram of the partition groove between two adjacent infrared combustion elements and the corresponding arrangement of the pot frame in one embodiment of the present invention.

[0056] Figure 5 This is a schematic diagram of one embodiment of the outer ring atmospheric combustion element of this utility model.

[0057] Figure 6 This is a three-dimensional structural diagram of an embodiment of the present invention, showing the ignition needle and thermocouple.

[0058] Figure 7 This is a schematic diagram of the cross-sectional structure of the outer ring infrared combustion ejector tube according to an embodiment of the present invention.

[0059] Figure 8 This is a schematic diagram of the overall Y-shaped structure between the outer ring atmospheric inlet pipe and the outer ring atmospheric ejector pipe in one embodiment of the present invention.

[0060] Figure 9 This is a schematic diagram of the overall P-shaped structure between the outer ring atmospheric intake pipe and the outer ring atmospheric ejector pipe in one embodiment of the present invention.

[0061] Figure 10 This is a schematic diagram of the overall structure of the outer ring atmospheric intake pipe and the outer ring atmospheric ejector pipe in an embodiment of the present invention, which is shaped like the number 9.

[0062] Figure 11 This is a three-dimensional structural diagram of an embodiment of the present invention, showing an inner cylinder with an air hole at the top.

[0063] Figure 12 This is a cross-sectional structural diagram of an embodiment of the present invention, showing an air supply channel on the outer side of the inner cylinder.

[0064] Figure 13 This is a schematic diagram of the cross-sectional structure of the infrared combustion element in the form of an arc-shaped concave plate according to an embodiment of the present invention. Detailed Implementation

[0065] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. In order to make the above-mentioned objects, features and advantages of the present application more apparent and understandable, many specific details are set forth in the following description in order to provide a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0066] See Figures 1-13 An atmospheric and infrared combination stove includes a burner body 4. The burner body 4 has a central atmospheric combustion structure 1, an outer ring atmospheric combustion structure 2 and an outer ring infrared combustion structure 3 at the combustion position. The outer ring atmospheric combustion structure 2 and the outer ring infrared combustion structure 3 are both located outside the central atmospheric combustion structure 1.

[0067] The outer ring infrared combustion structure 3 includes a plurality of infrared combustion elements 5, with a separation groove 6 between two adjacent infrared combustion elements 5, and the outer ring atmospheric combustion structure 2 is disposed on the separation groove 6.

[0068] The ceramic honeycomb panel of the outer ring infrared combustion structure 3 is designed as several separately arranged infrared combustion elements 5. A partition groove 6 is provided between two adjacent infrared combustion elements 5 (ceramic honeycomb panels). This partition groove 6 forms an installation gap for the outer ring atmospheric combustion structure, enabling simultaneous combustion of the outer ring atmospheric flame and the outer ring infrared light. Furthermore, during the heating and cooling process of the infrared combustion elements 5 (ceramic honeycomb panels), the partition groove 6 provides sufficient space for thermal expansion and contraction, preventing the ceramic honeycomb panel from cracking due to thermal expansion and contraction. The partition groove 6 also provides a deformation range for adjacent infrared combustion elements 5, extending the service life of the ceramic honeycomb panel. Simultaneously, it solves the problem that gas combustion and infrared combustion cannot be used simultaneously in the same combustion position.

[0069] The central atmospheric combustion structure 1 burns alone in the small flame state of the main body of the furnace head 4;

[0070] The central atmospheric combustion structure 1 and the outer annular atmospheric combustion structure 2 burn simultaneously in the medium-fire state of the furnace head body 4.

[0071] The central atmospheric combustion structure 1 and the outer ring infrared combustion structure 3 burn simultaneously as the main body of the furnace 4 in a high-fire state.

[0072] The central atmospheric combustion structure 1, the outer ring atmospheric combustion structure 2, and the outer ring infrared combustion structure 3 burn simultaneously to form the intense fire state of the furnace head body 4.

[0073] During the heating process, the infrared combustion element 5 of the outer ring infrared combustion structure 3 undergoes thermal expansion deformation along the corresponding partition groove 6, which avoids the phenomenon of explosion between several infrared combustion elements 5.

[0074] The two adjacent infrared combustion elements 5 are arranged separately, and the partition groove 6 runs through the inner and outer sides of the two adjacent infrared combustion elements 5.

[0075] The upper part of the burner body 4 is provided with a pot rack 7, and the pot rack 7 is provided with a number of support legs 8 for supporting cooking containers;

[0076] Each support leg 8 is arranged vertically to a partition groove 6. The support leg 8 is located directly above the partition groove 6. The partition groove 6 forms an infrared heat radiation avoidance space for the outer ring infrared combustion structure 3, so that the vertical upward heat radiation of the infrared combustion element 5 is not blocked by the support leg 8 when it is burning.

[0077] The burner head body 4 is equipped with a pot rack 7, which has several support legs 8 for supporting objects. Each support leg 8 corresponds one-to-one with a partition groove 6. The partition groove 6 forms an infrared heat radiation avoidance space for the outer ring infrared combustion structure 3, so as to prevent the heat generated by the outer ring infrared combustion structure 3 during combustion from being directly reflected vertically to the infrared burner 5 through the support legs 8 of the pot rack 7, thus preventing the ceramic honeycomb panel from cracking during heating and use. The partition groove 6 also forms a combustion avoidance space between the pot rack 7 and the outer ring infrared combustion structure 3. The partition groove 6 forms a fire avoidance groove for the support legs 8 of the pot rack 7, so there is no obstruction when the outer ring infrared combustion structure 3 is burning, the firepower is not affected, and the smoke emission is reduced. In addition, the partition groove 6 is used to install the outer ring atmospheric combustion structure 2.

[0078] The area outside the partition groove 6 that is not blocked by the outer ring infrared combustion structure 3 and the furnace head body 4 constitutes the oxygen replenishment area of ​​the outer ring atmospheric combustion structure 2, so that the outer ring atmospheric combustion structure 2 and the outer ring infrared combustion structure 3 can burn simultaneously.

[0079] During the simultaneous combustion of the outer annular atmospheric combustion structure 2 and the outer annular infrared combustion structure 3, the gas output from the outer annular atmospheric combustion structure 2 to the outside of the partition groove 6 is fully combusted under the high-temperature catalytic effect of the infrared radiation from the outer annular infrared combustion structure 3.

[0080] In this embodiment, the gas output from the outer annular atmospheric combustion structure 2 will be fully combusted under infrared high-temperature catalysis. The firepower at the interface between the outer annular atmospheric combustion structure 2 and the outer annular infrared combustion structure 3 is more intense. The principle of the gas being fully combusted under infrared high-temperature catalysis mainly includes the following steps and mechanisms:

[0081] Gas-catalyzed catalytic reaction: When gas (such as natural gas) passes through a catalyst, it first enters the gas phase and then undergoes a series of chemical reactions on the surface of the catalyst. The heat generated by these reactions causes the surface temperature of the catalyst to rise, which is then further converted into infrared radiation.

[0082] Generation of infrared radiation: Under the action of a catalyst, fuel gas undergoes an oxidation-reduction reaction with oxygen in the air, producing carbon dioxide and water vapor, and releasing infrared radiation. This infrared radiation, in the mid-to-far infrared wavelength range of 3.8 micrometers to 6.8 micrometers, can be effectively absorbed by the object being heated, thus achieving rapid heating.

[0083] Characteristics of infrared radiation: Infrared radiation is targeted, penetrating, and highly efficient. It heats only the surface of the object being heated, without heating the air, and can penetrate the interior of the object to heat it from the inside out.

[0084] High efficiency and speed: Compared to traditional heating methods, gas-fired catalytic infrared heating offers higher energy utilization efficiency and faster heating speed. Infrared radiation acts directly on the surface of the object being heated, reducing energy loss and making the heating process more efficient and rapid.

[0085] The upper part of the burner head body 4 is the combustion zone, and the central atmospheric combustion structure 1, the outer ring atmospheric combustion structure 2 and the outer ring infrared combustion structure 3 are integrated in the combustion zone of the burner head body 4.

[0086] The furnace head body 4 is provided with an infrared combustion mixing chamber 17, and the infrared combustion mixing chamber 17 is provided with an outer ring atmospheric air intake channel 38.

[0087] Both the outer ring atmospheric combustion structure 2 and the outer ring infrared combustion structure 3 are located on the upper part of the infrared combustion mixing chamber 17.

[0088] The output end of the outer annular atmospheric intake channel 38 is connected to the input end of the outer annular atmospheric combustion structure 2.

[0089] The outer ring atmospheric intake channel 38 and the infrared combustion mixing chamber 17 are located outside the central atmospheric combustion structure 1.

[0090] The burner body 4 is provided with a central fire intake channel 39, and a central atmospheric combustion structure 1 is set on the output end of the central fire intake channel 39.

[0091] The burner body 4 has an inner cylinder 26. The central fire intake channel 39 extends into the inner cylinder 26 and upwards. The central atmospheric combustion structure 1 is located on the upper part of the inner cylinder 26. The outer ring atmospheric intake channel 38 and the infrared combustion mixing chamber 17 are located on the outer side of the inner cylinder 26. The inner side of the outer ring atmospheric combustion structure 2 and the inner side of the outer ring infrared combustion structure 3 are located on the upper side of the inner cylinder 26.

[0092] The inner cylinder 26 has a through cavity running vertically. The cavity of the inner cylinder 26 forms an air supply cavity for installing the fixed bracket 31 and connecting to the outside air, so as to achieve oxygen supply during the combustion process of the central atmospheric combustion structure 1. The fixed bracket 31 is equipped with a thermocouple 30 and an ignition needle 29, and the central atmospheric combustion structure 1 is located between the thermocouple 30 and the ignition needle 29.

[0093] In this embodiment, the inner cylinder 26 is designed in a conical or cylindrical shape and is fixed to the inner bottom wall of the infrared combustion mixing chamber 17 by welding.

[0094] The inner cylinder 26 is positioned at a lower height on the burner body 4 than the outer ring infrared combustion structure 3, so that the upper surface of the outer ring infrared combustion structure 3 forms an energy-concentrating concave surface.

[0095] The inner cylinder 26 has a cylindrical or conical shape.

[0096] The inner cylinder 26 has an inner cylinder air hole 42 on its top side, and the output end of the outer ring atmospheric air inlet channel 38 is connected to the inner cylinder air hole 42.

[0097] The outer ring atmospheric air intake channel 38 is located around the inner cylinder 26 and forms a gas supply channel 41 that communicates with the inner cylinder air hole 42. The gas enters the inner cavity of the inner cylinder 26 through the gas supply channel 41 and the inner cylinder air hole 42. After the gas is ignited, a combustion flame is formed at the top of the inner cylinder 26, so that the top of the inner side of the inner cylinder 26 forms the inner cylinder combustion part of the outer ring atmospheric combustion structure 2. This structure is beneficial to further increase the firepower of the stove. The outer ring atmospheric combustion structure 2 can increase the combustion area.

[0098] The inner cylinder combustion section is located between the central atmospheric combustion structure 1 and the outer ring infrared combustion structure 3;

[0099] The inner cylinder 26 is provided with a number of circumferentially spaced air holes 42.

[0100] The top of the inner cylinder 26 can also be part of the outer ring atmospheric combustion structure 2. The inner cylinder 26 has several circumferentially spaced inner cylinder air holes 42 on the inner side of the top, which increases the firepower. When the gas is ignited, the flame can be transmitted quickly, and the oxygen supply inside the inner cylinder 26 is more sufficient.

[0101] The outer ring atmospheric intake channel 38 includes an outer ring atmospheric intake pipe 11 and an outer ring atmospheric branch pipe 13 connected to the outer ring atmospheric intake pipe 11. The outer ring atmospheric combustion structure 2 is connected to the outer ring atmospheric branch pipe 13.

[0102] The outer ring atmospheric intake pipe 11 is provided with an outer ring atmospheric ejector pipe 15 at its intake end; the air supply channel 41 is connected to the outer ring atmospheric intake pipe 11.

[0103] The gas supply channel 41 and the outer ring atmospheric branch pipe 13 are configured as a whole. The gas supply channel 41 is located between the outer ring atmospheric branch pipe 13 and the inner cylinder 26. When the gas supply channel 41 and the outer ring atmospheric branch pipe 13 are configured as a whole, the gas supply channel 41 is located inside the outer ring atmospheric branch pipe 13. The gas enters the outer ring atmospheric inlet pipe 11, the outer ring atmospheric branch pipe 13 and the gas supply channel 41 through the outer ring atmospheric ejector pipe 15.

[0104] Alternatively, the air supply channel 41 and the outer ring atmospheric branch pipe 13 are set separately. The air supply channel 41 is sleeved on the outer side of the inner cylinder 26 in an outer ring shape. One end of the air supply channel 41 is inserted into the outer ring atmospheric inlet pipe 11, which is connected to the air inlet chamber of the air supply channel 41. The air outlet end of the air supply channel 41 is connected to the air hole 42 of the inner cylinder.

[0105] In this embodiment, the outer ring atmospheric intake pipe 11 can be fixed to the furnace head body 4 by welding.

[0106] Alternatively, the outer ring atmospheric intake pipe 11 is suspended above the bottom wall of the inner cavity of the furnace head body 4 via a support column structure.

[0107] In this embodiment, the outer ring atmospheric intake pipe 11 is arranged around the outer side of the inner cylinder 26, and the outer ring atmospheric intake pipe 11 can be fixed to the outer side of the inner cylinder 26 by welding.

[0108] An outer ring atmospheric combustion element 9 and an outer ring atmospheric inlet pipe 11 are provided with an outer ring atmospheric branch pipe 13. The outer ring atmospheric branch pipe 13 is provided with a gas supply channel 41 for guiding the gas flow to the outer ring atmospheric combustion element 9. The gas supply channel 41 is connected to the combustion outlet hole 10 in sequence to form a combustion outlet channel.

[0109] In this embodiment, the outer ring atmospheric bronchus 13 has a hollow internal structure. One end of the outer ring atmospheric bronchus 13 is fixed to the outer ring atmospheric inlet pipe 11 by welding, and the other end of the outer ring atmospheric bronchus 13 is fixed to the outer ring atmospheric combustion element 9 by welding.

[0110] In this embodiment, the outer annular atmospheric branch pipe 13, the outer annular atmospheric intake pipe 11, and the atmospheric combustion element 9 can be connected as a whole by welding or screws. The outer annular atmospheric intake pipe 11 is provided with an insertion interface for inserting the outer annular atmospheric branch pipe 13.

[0111] The outer ring atmospheric combustion structure 2 includes an outer ring atmospheric combustion element 9 installed on the partition groove 6. Each partition groove 6 is provided with an outer ring atmospheric combustion element 9, and the outer ring atmospheric combustion element 9 is provided with a plurality of combustion venting holes 10 that communicate with the outside air.

[0112] In this embodiment, the outer ring atmospheric combustion element 9 has a bent structure, such as... Figure 5 As shown, the outer ring atmospheric combustion element 9 has support feet 36 on both sides for supporting the infrared combustion element 5, and a lower cavity 37 is provided below the outer ring atmospheric combustion element 9. The gas entering the outer ring atmospheric combustion element 9 is transported to the outside of the combustion outlet 10 along the lower cavity 37.

[0113] The furnace head body 4 is provided with an outer ring infrared combustion ejector tube 18 that connects to the infrared combustion mixing chamber 17.

[0114] The central fire air intake channel 39 includes a vertical gas pipe 40 extending upward into the inner cylinder 26 and a central fire combustion ejector pipe 24 inserted horizontally into the burner body 4. The central atmospheric combustion structure 1, the vertical gas pipe 40 and the central fire combustion ejector pipe 24 are connected.

[0115] The overall shape of the outer ring atmospheric intake pipe 11 and the outer ring atmospheric ejector pipe 15 is P-shaped, Y-shaped or 9-shaped.

[0116] The combustion vent 10 is positioned at a higher height on the furnace head body 4 than the infrared combustion element 5 is positioned on the furnace head body 4, and does not obstruct the combustion position of the outer ring atmospheric combustion element 9.

[0117] The infrared combustion element 5 is a ceramic honeycomb plate. The side cross-section of the infrared combustion element 5 is in the shape of an arc-shaped concave plate, a straight plate, or a wavy plate. The top view projection of the infrared combustion element 5 is elliptical, circular, arc-shaped fan, or polygonal. The polygonal shape is rhomboid, square, or petal-shaped. The outer ring atmospheric combustion element 9 is tubular in shape.

[0118] In this embodiment, the wavy design of the ceramic honeycomb plate allows the outer ring atmospheric combustion structure 2 to have a wavy shape around the ceramic plate during combustion, providing space for air replenishment.

[0119] The outer ring atmospheric inlet pipe 11 is provided with an outer ring atmospheric ejector pipe 15, and the outer ring atmospheric ejector pipe 15 is provided with a first ejector channel 16 that connects to the outer ring atmospheric inlet pipe 11.

[0120] In this embodiment, when the gas enters the first ejector channel 16, the gas and air are premixed at the air inlet of the first ejector channel 16. After the premixed gas and air enter the first ejector channel 16, they enter the outer ring atmospheric intake pipe 11 and the gas supply channel 41 in sequence, and then reach the upper outer ring atmospheric combustion element 9. The gas entering the outer ring atmospheric combustion element 9 is output to the outside air from the combustion outlet 10. The gas and air are mixed a second time, and the gas produces an open flame combustion phenomenon under the action of ignition.

[0121] The furnace head body 4 is provided with an infrared combustion mixing chamber 17, and a number of infrared combustion elements 5 are located at the top opening of the infrared combustion mixing chamber 17. The furnace head body 4 is provided with an outer ring infrared combustion ejector tube 18, and the outer ring infrared combustion ejector tube 18 is provided with a second ejector channel 19 that connects to the infrared combustion mixing chamber 17.

[0122] The central atmospheric combustion structure 1 includes a central flame combustion element 20; the central flame combustion element 20 is provided with a central flame combustion vent 23; the outside air is connected to the central flame combustion vent 23 in sequence.

[0123] In this embodiment, the thermocouple 30 and the ignition needle 29 are mounted on a fixed bracket 31. The fixed bracket 31 has a first mounting hole for mounting the thermocouple 30 and a second mounting hole for mounting the ignition needle 29. The fixed bracket 31 is sleeved on the outside of the central flame combustion ejector tube 24 and is positioned near the top outer side of the central flame combustion ejector tube 24.

[0124] In this embodiment, the fixing bracket 31 can be fixed to the outside of the central flame combustion ejector tube 24 by screws or welding.

[0125] The central fire combustion element 20 is provided with a central fire combustion ejector tube 24 at one end, and a third ejector channel 25 is provided on the central fire combustion ejector tube 24 to connect with the central fire combustion outlet 23.

[0126] The burner body 4 is provided with a concave cavity forming an infrared combustion mixing chamber 17. An inner cylinder 26 is provided on the bottom wall of the concave cavity. The inner cylinder 26 extends upward toward the bottom wall of the concave cavity. The central flame combustion ejector tube 24 is inserted into the concave cavity of the burner body 4 and extends into the inner cylinder 26 in a tortuous manner. The end of the central flame combustion ejector tube 24 extending into the inner cylinder 26 is provided with an installation part 27 for installing the central flame combustion element 20.

[0127] The recessed cavity of the burner body 4 is provided with an outer ring infrared combustion ejector tube 18 for cooperating with the outer ring infrared combustion structure 3. The outer ring infrared combustion ejector tube 18 is inserted into the recessed cavity of the burner body 4 and is coiled on the outer side of the inner cylinder 26.

[0128] In this embodiment, when the gas enters the outer ring infrared combustion ejector tube 18, the gas is premixed with air at the air inlet of the outer ring infrared combustion ejector tube 18. The premixed air and gas enter the second ejector channel 19. The premixed air and gas enter the inner cavity (infrared combustion mixing chamber 17) of the furnace head body 4 along the second ejector channel 19 and undergo secondary premixing. After the gas is ignited, it heats the honeycomb infrared combustion element 5 (ceramic honeycomb plate).

[0129] In this embodiment, when the gas enters the central flame combustion ejector tube 24, the gas is premixed with air at the air inlet of the central flame combustion ejector tube 24. The premixed air and gas enter the central flame combustion ejector tube 24 and are output to the outside air through the central flame combustion outlet 23 of the central flame burner 20. After the gas is mixed with the outside air for a second time, the gas produces an open flame combustion phenomenon under the action of ignition.

[0130] In this embodiment, the outer ring infrared combustion ejector tube 18 is bent so that it wraps around the outer side of the inner cylinder 26 in the inner cavity of the furnace head body 4 and extends into the infrared combustion mixing chamber 17. Specifically, the outer ring infrared combustion ejector tube 18 includes a pressurization section 32, a mixing section 33 and a diffusion section 34 arranged sequentially along the airflow direction. The pressurization section 32 is located outside the infrared combustion mixing chamber 17.

[0131] The diffuser section 34 has an arc-shaped surface 35. Under the action of the delivery pressure, the gas generates a rotating airflow along the arc-shaped surface 35, which mixes better with the air. The area of ​​the diffuser section 34 gradually increases from the air inlet to the air outlet, which is conducive to better gas diffusion, so as to better achieve gas-air mixing in the infrared combustion mixing chamber 17.

[0132] The recessed cavity of the burner body 4 is provided with a support step 28 for supporting the infrared combustion element 5.

[0133] In this embodiment, a connecting section is provided on the outer side of the inner cylinder 26 to connect with the diffuser section 34 of the outer ring infrared combustion ejector tube 18. The connecting section is wrapped around the outer side of the inner cylinder 26. The outer ring infrared combustion ejector tube 18 is inserted into the inner cavity of the furnace head body 4, and the diffuser section 34 is connected to the connecting section in a pipe-like manner (the diffuser section 34 is inserted into the connecting section).

[0134] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A combined atmospheric and infrared range, comprising a burner head body (4), characterized in that: The combustion position of the stove head body (4) is provided with a center atmospheric combustion structure (1), an outer ring atmospheric combustion structure (2) and an outer ring infrared combustion structure (3), the outer ring atmospheric combustion structure (2) and the outer ring infrared combustion structure (3) are both located outside the center atmospheric combustion structure (1); The outer ring infrared combustion structure (3) comprises a plurality of infrared combustion elements (5), and a separation groove (6) is left between adjacent two infrared combustion elements (5), and the outer ring atmospheric combustion structure (2) is arranged on the separation groove (6).

2. The combination atmospheric and infrared range according to claim 1, characterized in that: The center atmospheric combustion structure (1) is independently combusted to be a small fire state of the stove head body (4); The center atmospheric combustion structure (1) and the outer ring atmospheric combustion structure (2) are combusted simultaneously to be a medium fire state of the stove head body (4); The center atmospheric combustion structure (1) and the outer ring infrared combustion structure (3) are combusted simultaneously to be a large fire state of the stove head body (4); The center atmospheric combustion structure (1), the outer ring atmospheric combustion structure (2) and the outer ring infrared combustion structure (3) are combusted simultaneously to be a fierce fire state of the stove head body (4).

3. The combination atmospheric and infrared range according to claim 1, wherein: The separation groove (6) leaves a thermal expansion and cold shrink deformation interval for adjacent infrared combustion elements (5); Two adjacent infrared combustion elements (5) are arranged in a split mode, and the separation groove (6) penetrates the inner and outer sides of the adjacent two infrared combustion elements (5).

4. The combination atmospheric and infrared range according to claim 1, wherein: The upper portion of the stove head body (4) is provided with a pot rack (7), and a plurality of support legs (8) for supporting a cooking container are arranged on the pot rack (7); Each support leg (8) is arranged in a corresponding mode above a separation groove (6), the support leg (8) is located directly above the separation groove (6), and the position of the separation groove (6) forms an infrared heat radiation avoidance position of the outer ring infrared combustion structure (3), so that the vertical upward heat radiation of the infrared combustion element (5) is not blocked by the support leg (8) when the infrared combustion element (5) is combusted.

5. The combination atmospheric and infrared gas range as set forth in claim 1, wherein: The position of the separation groove (6) which is not blocked by the outer ring infrared combustion structure (3) and the stove head body (4) constitutes an oxygen supplement area of the outer ring atmospheric combustion structure (2), so that the outer ring atmospheric combustion structure (2) and the outer ring infrared combustion structure (3) can be combusted simultaneously; During the combustion of the outer ring atmospheric combustion structure (2) and the outer ring infrared combustion structure (3) simultaneously, the gas output from the outer ring atmospheric combustion structure (2) to the outside of the separation groove (6) is fully combusted under the catalysis of the infrared high temperature of the outer ring infrared combustion structure (3).

6. The combination atmospheric and infrared gas range as set forth in claim 1, wherein: The upper portion of the stove head body (4) itself is a combustion area position, and the center atmospheric combustion structure (1), the outer ring atmospheric combustion structure (2) and the outer ring infrared combustion structure (3) are integrated in the combustion area position of the stove head body (4); The stove head body (4) is internally provided with an infrared combustion mixing cavity (17), and the infrared combustion mixing cavity (17) is internally provided with an outer ring atmospheric air inlet channel (38); The outer ring atmospheric combustion structure (2) and the outer ring infrared combustion structure (3) are both located at the upper portion of the infrared combustion mixing cavity (17); The output end of the outer ring atmospheric air inlet channel (38) is in communication with the input end of the outer ring atmospheric combustion structure (2).

7. The combination atmospheric and infrared gas range as set forth in claim 6, wherein: The outer ring atmospheric air inlet channel (38) and the infrared combustion mixing cavity (17) are located outside the central atmospheric combustion structure (1); The furnace end main body (4) is provided with a central fire air inlet channel (39), and the central atmospheric combustion structure (1) is arranged on the output end of the central fire air inlet channel (39); The furnace end main body (4) is provided with an inner cylinder (26), the central fire air inlet channel (39) extends into the inner cylinder (26) and extends upward, the central atmospheric combustion structure (1) is located at the upper portion of the inner cylinder (26), the outer ring atmospheric air inlet channel (38) and the infrared combustion mixing cavity (17) are located outside the inner cylinder (26), and the inner side of the outer ring atmospheric combustion structure (2) and the inner side of the outer ring infrared combustion structure (3) are arranged on the upper side of the inner cylinder (26).

8. The combination atmospheric and infrared gas range as set forth in claim 7, wherein: The inner cylinder (26) has a cavity extending through the upper and lower portions, the cavity of the inner cylinder (26) forms a fixed support (31) and a gas supplement cavity for connecting external air to supplement oxygen during combustion of the central atmospheric combustion structure (1); the fixed support (31) is provided with a thermocouple (30) and an ignition needle (29), and the central atmospheric combustion structure (1) is located between the thermocouple (30) and the ignition needle (29); The position height of the inner cylinder (26) on the furnace end main body (4) is lower than the position height of the outer ring infrared combustion structure (3), so that the upper surface of the outer ring infrared combustion structure (3) forms an energy-concentrating concave surface; The inner cylinder (26) has a cylindrical or conical structure; The inner cylinder (26) is provided with an inner cylinder air hole (42) on the top side, and the output end of the outer ring atmospheric air inlet channel (38) is communicated with the inner cylinder air hole (42); The outer ring atmospheric air inlet channel (38) is partially located outside the inner cylinder (26) and forms a gas supply channel (41) communicated with the inner cylinder air hole (42) between the inner cylinder (26), the gas enters the inner cavity of the inner cylinder (26) through the gas supply channel (41) and the inner cylinder air hole (42), and the combustion flame is formed at the top of the inner cylinder (26) after the gas is ignited, so that the inner side of the top of the inner cylinder (26) forms an inner cylinder combustion part of the outer ring atmospheric combustion structure (2); The inner cylinder combustion part is located between the central atmospheric combustion structure (1) and the outer ring infrared combustion structure (3); The inner cylinder (26) is provided with a plurality of inner cylinder air holes (42) arranged at intervals in a circle.

9. The combination atmospheric and infrared gas range as set forth in claim 8, wherein: The outer ring atmospheric air inlet channel (38) comprises an outer ring atmospheric air inlet pipe (11) and an outer ring atmospheric air branch pipe (13) communicated with the outer ring atmospheric air inlet pipe (11), and the outer ring atmospheric combustion structure (2) is connected to the outer ring atmospheric air branch pipe (13); The gas supply channel (41) is communicated with the outer ring atmospheric air inlet pipe (11); The gas supply channel (41) and the outer ring atmospheric air branch pipe (13) are arranged as a whole, and the gas supply channel (41) is located between the outer ring atmospheric air branch pipe (13) and the inner cylinder (26); Alternatively, the gas supply channel (41) and the outer ring atmospheric air branch pipe (13) are arranged in a split mode. The furnace head body (4) is internally provided with an outer ring infrared combustion ejector pipe (18) communicating with the infrared combustion mixing cavity (17); The central fire gas inlet channel (39) comprises a vertical gas pipe (40) extending upward into the inner cylinder (26) and a central fire combustion ejector pipe (24) inserted laterally into the furnace head body (4), and the central atmospheric combustion structure (1), the vertical gas pipe (40) and the central fire combustion ejector pipe (24) are in communication; The overall shape between the outer ring atmospheric gas inlet pipe (11) and the outer ring atmospheric gas ejector pipe (15) is in the shape of P, Y or 9.

10. The combination atmospheric and infrared gas range as set forth in claim 1, wherein: The outer ring atmospheric combustion structure (2) comprises outer ring atmospheric combustion members (9) mounted on the partition grooves (6), each partition groove (6) is provided with an outer ring atmospheric combustion member (9), and the outer ring atmospheric combustion member (9) is provided with a plurality of combustion fire hole parts (10) communicating with the outside air; The position height of the combustion fire hole part (10) on the furnace head body (4) is higher than the position height of the infrared combustion element (5) on the furnace head body (4); The infrared combustion element (5) is a ceramic honeycomb plate, the side section of the infrared combustion element (5) is in the shape of an arc-shaped concave plate, a straight plate or a wave-shaped plate; the overhead projection of the infrared combustion element (5) is in the shape of an ellipse, a circle, an arc sector or a polygon, and the polygon is in the shape of a diamond, a square or a petal; and the outer ring atmospheric combustion member (9) is in the shape of a tube.

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