Atmospheric and infrared combined stove

Abstract

The invention relates to the technical field of combustion furnace ends, and provides an atmosphere type and infrared ray combined stove which comprises a furnace end 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 body, and the outer ring infrared ray combustion structure comprises a plurality of infrared ray combustion parts. 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] The invention relates to the technical field of combustion stove heads, in particular to an atmospheric and infrared combined stove. Background Art

[0002] The existing infrared burner head (infrared burner) uses a porous ceramic honeycomb plate as the burner head. The ceramic honeycomb plate is made of special refractory materials and forms an infrared radiation plate. When the flame burns and heats, the ceramic honeycomb plate converts the flame into infrared rays to accelerate the heating process of the object. Due to the transmission of infrared radiation, the performance of the gas stove is greatly improved. Working principle: When the gas stove is working, the gas enters the stove from the air inlet pipe, enters the burner head through the adjustment of the gas valve (the user adjusts it through the knob), passes through the ignition needle and the thermocouple, and ignites and heats the ceramic honeycomb plate.

[0003] However, when the infrared burning burner head is in use, when the user needs to adjust the firepower, when the firepower of the infrared burning burner head needs to be increased or decreased, the infrared burning burner head cannot be immediately increased or decreased like the flame-type burning burner head to achieve high firepower adjustment. For example, when the infrared burning burner head needs to change from high firepower to low firepower, the ceramic honeycomb plate needs to be cooled down, and its heating firepower cannot be immediately reduced; when the infrared burning burner head needs to change from low firepower to high firepower, the ceramic honeycomb plate needs to be heated up, and its heating firepower cannot be immediately increased. Therefore, the firepower adjustment of the infrared burning burner head has a lag phenomenon.

[0004] In addition, the pot rack is located above the ceramic honeycomb plate of the infrared burning stove head. When the ceramic honeycomb plate of the infrared burning stove head is heated, the heat radiation generated by the ceramic honeycomb plate is transferred to the pot rack. The heat is reflected by the pot rack and returned to the ceramic honeycomb plate. If the temperature of the reflected heat is high, the ceramic honeycomb plate is at risk of bursting.

[0005] The ceramic honeycomb panel is a whole piece of ceramic honeycomb panel installed on the combustion position of the furnace head. The ceramic honeycomb panel will expand and contract during the combustion and cooling process. If the gap between the ceramic honeycomb panel and the furnace head is small, when the ceramic honeycomb panel expands during the heating process, there is no much space for the ceramic honeycomb panel to expand and deform, and the ceramic honeycomb panel is prone to the risk of bursting.

[0006] When the infrared and atmospheric open flame combustion are arranged in a surrounding combination on the stove, the atmospheric open flame combustion cannot replenish secondary air. The smoke of the outer ring open flame of the household stove will seriously exceed the standard in the infrared because there is no secondary air replenishment channel. And because the infrared adjustment range of fire is narrow, it is difficult to adjust when medium and stable fire is required for frying fish, omelette, pancakes, soup, etc. Summary of the invention

[0007] The present invention proposes an atmospheric and infrared combined cooker, wherein the ceramic honeycomb plate of the outer ring infrared combustion structure is designed to be a plurality of split infrared combustion parts, and a separation groove is provided between two adjacent infrared combustion parts (ceramic honeycomb plates), and the separation groove forms an installation gap for installing the outer ring atmospheric combustion structure, so as to realize the simultaneous combustion of the outer ring atmospheric open flame and the outer ring infrared, and the separation groove provides the infrared combustion part (ceramic honeycomb plate) with sufficient thermal expansion and contraction space during the heating to cooling process of the infrared combustion part (ceramic honeycomb plate), so as to prevent the ceramic honeycomb plate from bursting due to thermal expansion and contraction, and the separation groove leaves a thermal expansion and contraction deformation interval for the adjacent infrared combustion part, so that the ceramic honeycomb plate has a longer service life. At the same time, it also solves the problem that gas combustion and infrared combustion cannot be used at the same combustion position at the same time.

[0008] An atmospheric and infrared combined cooker designed for this purpose comprises a burner body, wherein a central atmospheric combustion structure, an outer ring atmospheric combustion structure and an outer ring infrared combustion structure are arranged at the combustion position of the burner body, and 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 comprises a plurality of infrared combustion elements, a separation groove is left between two adjacent infrared combustion elements, and the outer ring atmospheric combustion structure is arranged on the separation groove.

[0010] The two adjacent infrared combustion elements are arranged in a split form, and the separation groove runs through the inner and outer sides of the two adjacent infrared combustion elements.

[0011] The central atmospheric combustion structure burns alone in a low-fire state of the burner body;

[0012] The central atmospheric combustion structure and the outer ring atmospheric combustion structure burn simultaneously to a medium fire state of the burner body;

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

[0014] The central atmospheric combustion structure, the outer ring atmospheric combustion structure and the outer ring infrared combustion structure burn simultaneously to form a fierce fire state of the burner main body.

[0015] The separation groove leaves a thermal expansion and contraction deformation zone for the adjacent infrared combustion elements.

[0016] A pot rack is provided on the upper part of the stove main body, and a plurality of supporting legs for supporting the cooking container are provided on the pot rack;

[0017] Each support foot is arranged correspondingly to a dividing groove up and down, and the support foot is located directly above the dividing groove. The position of the dividing groove forms an infrared heat radiation avoidance space for the outer ring infrared combustion structure, so that the vertical upward heat radiation of the infrared combustion element when burning is not blocked by the support foot.

[0018] The position outside the dividing groove that is not blocked by the outer ring infrared combustion structure and the burner body constitutes an oxygen supplementation area for 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 ring atmospheric combustion structure and the outer ring infrared combustion structure, the fuel gas output from the outer ring atmospheric combustion structure to the outside of the separation groove is fully burned under the infrared high temperature catalytic action of the outer ring infrared combustion structure.

[0020] The upper part of the burner body is the combustion area, and the central atmospheric combustion structure, the outer ring atmospheric combustion structure and the outer ring infrared combustion structure are integrated in the combustion area of ​​the burner body;

[0021] The burner 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] The outer ring atmospheric combustion structure and the outer ring infrared combustion structure are both located at the upper part of the infrared combustion mixing chamber;

[0023] The output end of the outer ring atmospheric air intake channel is communicated with the input end of the outer ring atmospheric combustion structure.

[0024] The outer ring atmospheric air 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 air inlet passage, and the central atmospheric combustion structure is arranged on the output end of the central fire air inlet passage.

[0026] An inner cylinder is provided in the burner body, a central fire air intake passage extends into the inner cylinder and extends upward, a central atmospheric combustion structure is located at the upper part of the inner cylinder, an outer ring atmospheric air intake passage and an infrared combustion mixing chamber are located at the outside of the inner cylinder, and the inner side of the outer ring atmospheric combustion structure and the inner side of the outer ring infrared combustion structure are arranged at the upper side of the inner cylinder.

[0027] The inner cylinder has a cavity that passes through from top to bottom, and the cavity of the inner cylinder forms an air supply cavity for installing a fixed bracket and communicating with the outside air, so as to realize oxygen supply during the combustion process of the central atmospheric combustion structure; a thermocouple and an ignition needle are arranged on the fixed bracket, and the central atmospheric combustion structure is located between the thermocouple and the ignition needle;

[0028] The position height of the inner cylinder on the burner body is lower than the position height of the outer ring infrared combustion structure, so that the upper surface of the outer ring infrared combustion structure forms an energy-gathering concave surface;

[0029] The inner cylinder is in the shape of a cylinder or a cone;

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

[0031] The outer ring atmospheric air intake channel is located outside the inner cylinder and forms an air supply channel connected to the inner cylinder air hole between the inner cylinder and the inner cylinder. 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 inner top of the inner cylinder constitutes the inner cylinder combustion part of the outer ring atmospheric combustion structure.

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

[0033] The inner cylinder body is provided with a plurality of inner cylinder air holes which are arranged at intervals around the circumference.

[0034] The outer ring atmospheric air intake passage includes an outer ring atmospheric air intake pipe and an outer ring atmospheric bronchial pipe communicating with the outer ring atmospheric air intake pipe, and the outer ring atmospheric combustion structure is connected to the outer ring atmospheric bronchial pipe;

[0035] The air inlet end of the outer ring atmosphere inlet pipe is provided with an outer ring atmosphere ejector pipe;

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

[0037] The air supply channel and the outer ring atmospheric bronchus are configured as a whole, and the air supply channel is located between the outer ring atmospheric bronchus and the inner cylinder;

[0038] Alternatively, the air supply channel and the outer ring atmospheric bronchus are separately arranged;

[0039] The burner body is provided with an outer ring infrared combustion ejector pipe connected to the infrared combustion mixing chamber;

[0040] The central fire air inlet passage includes a vertical gas pipe extending upward into the inner cylinder, and a central fire combustion ejector pipe inserted horizontally into the burner body, and the central atmospheric combustion structure, the vertical gas pipe and the central fire combustion ejector pipe are connected;

[0041] The overall shape between the outer ring atmosphere intake pipe and the outer ring atmosphere ejection pipe is P-shaped, Y-shaped or 9-shaped.

[0042] The outer ring atmospheric combustion structure comprises an outer ring atmospheric combustion member installed on the dividing groove, each dividing groove is provided with an outer ring atmospheric combustion member, and the outer ring atmospheric combustion member is provided with a plurality of combustion and fire outlet portions connected to the outside air;

[0043] The position height of the combustion and fire outlet portion on the burner body is higher than the position height of the infrared combustion element on the burner body;

[0044] The infrared combustion element is a ceramic honeycomb plate, and the side cross-section of the infrared combustion element is an arc-shaped concave plate, a straight plate or a wavy plate; the top projection of the infrared combustion element is an ellipse, a circle, an arc fan or a polygon, and the polygon is a diamond, a square or a petal shape; the outer ring atmospheric combustion part is tubular as a whole.

[0045] The beneficial technical effects of the present invention are as follows:

[0046] The existing circular ceramic honeycomb panel is divided into several split infrared combustion parts. A separation groove is provided between two adjacent infrared combustion parts (ceramic honeycomb panels). The separation groove forms an installation gap for installing the outer ring atmospheric combustion structure, so that the outer ring atmospheric open flame and the outer ring infrared can be burned at the same time. The separation groove provides the infrared combustion parts (ceramic honeycomb panels) with sufficient thermal expansion and contraction space during the heating and cooling process, preventing the ceramic honeycomb panels from bursting due to thermal expansion and contraction. The separation groove leaves a thermal expansion and contraction deformation interval for the adjacent infrared combustion parts, and the ceramic honeycomb panels have a longer service life. At the same time, it also solves the problem that gas combustion and infrared combustion cannot be used at the same combustion position at the same time.

[0047] The ceramic honeycomb panel of this design product adopts a quarter-junction design (it can be understood as dividing a circular ceramic honeycomb panel into four pieces, so it is one quarter here, but a circular ceramic honeycomb panel can also be divided into two, three, or more than four pieces). If the firing temperature of the whole circular ceramic honeycomb panel is high, it is easy to break and damage. However, the ceramic honeycomb panel with a quarter-junction design has a small area, so when the firing temperature is high, the ceramic honeycomb panel is not easily damaged or broken. Therefore, the firing temperature of the ceramic honeycomb panel can be increased to increase the hardness of the ceramic honeycomb panel and enhance the strength of the ceramic honeycomb panel. The service life of the ceramic honeycomb panel will be further extended, and it is more suitable for use with high-fire, large-flow, and medium-pressure valves in Chinese cooking stoves.

[0048] Compared with the traditional open flame gas stove, the product of this design has greater combustion power when the same amount of gas is used. When the fire is high, it has reached the fire power of the Chinese cooking stove in the restaurant.

[0049] As for the atmospheric and infrared combination cookers, since the existing infrared stove technology is mature, as well as the production processes of ceramic honeycomb panels, ejector tubes, etc. are mature, the market base is mature and stable, and it is easy to realize the conversion from the structural design of this application to the product.

[0050] The existing infrared stoves are difficult to adjust the medium fire power. The present application adds an outer ring atmospheric combustion structure. When the central atmospheric combustion structure and the outer ring atmospheric combustion structure burn simultaneously to the medium fire state of the stove head main body, the medium fire power uses an open flame, and the fire power adjustment is easy to achieve. The medium fire power has a large coverage range and is suitable for different cooking situations. In addition, the infrared stoves on the market (using ceramic honeycomb panels for flameless combustion) themselves have energy-saving and emission reduction effects and high marketing volume. Now the present application uses an atmospheric and infrared combination stove to further improve the competitiveness of this design product in the market. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0053] Figure 2 It is a schematic diagram of the cross-sectional structure of a furnace head body according to an embodiment of the present invention.

[0054] Figure 3 It is a schematic diagram of the cross-sectional structure of the furnace head body in another aspect of an embodiment of the present invention.

[0055] Figure 4 The diagram is a three-dimensional structural diagram of a partition groove between two adjacent infrared combustion elements and a pot rack correspondingly arranged in accordance with an embodiment of the present invention.

[0056] Figure 5 It is a schematic structural diagram of one practical method of an outer ring atmospheric combustion component according to an embodiment of the present invention.

[0057] Figure 6 It is a schematic diagram of the three-dimensional structure of an ignition needle and a thermocouple according to an embodiment of the present invention.

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

[0059] Figure 8 It is a schematic diagram of the structure in which the overall shape between the outer ring atmospheric intake pipe and the outer ring atmospheric ejection pipe is Y-shaped according to an embodiment of the present invention.

[0060] Fig. 9 It is a schematic diagram of the structure in which the overall shape between the outer ring atmospheric intake pipe and the outer ring atmospheric ejection pipe is P-shaped according to an embodiment of the present invention.

[0061] Fig.10 This is a schematic diagram of the structure in which the overall shape between the outer ring atmospheric intake pipe and the outer ring atmospheric ejection pipe is a figure 9 in one embodiment of the present invention.

[0062] Fig.11 It is a schematic diagram of the three-dimensional structure in which an inner cylinder air hole is provided on the top of the inner cylinder according to an embodiment of the present invention.

[0063] Fig.12 This is a schematic cross-sectional structure diagram of an embodiment of the present invention in which an air supply channel is provided on the outer side of the inner cylinder.

[0064] Fig.13 It is a schematic diagram of the cross-sectional structure of an arc-shaped concave plate of an infrared combustion element according to an embodiment of the present invention. DETAILED DESCRIPTION

[0065] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, many specific details are set forth in the following description to facilitate 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 violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0066] See also Figure 1-Figure 13 , an atmospheric and infrared combined cooker, comprising a burner body 4, wherein a central atmospheric combustion structure 1, an outer ring atmospheric combustion structure 2 and an outer ring infrared combustion structure 3 are arranged at the combustion position of the burner body 4, and 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 , a separation groove 6 is left between two adjacent infrared combustion elements 5 , and the outer ring atmospheric combustion structure 2 is arranged on the separation groove 6 .

[0068] The ceramic honeycomb panel of the outer ring infrared combustion structure 3 is designed to be a plurality of split infrared combustion parts 5, and a separation groove 6 is provided between two adjacent infrared combustion parts 5 (ceramic honeycomb panels). The separation groove 6 forms an installation gap for installing the outer ring atmospheric combustion structure, so as to realize the simultaneous combustion of the outer ring atmospheric open flame and the outer ring infrared. The separation groove 6 provides the infrared combustion parts 5 (ceramic honeycomb panels) with sufficient thermal expansion and contraction space during the heating to cooling process of the infrared combustion parts 5 (ceramic honeycomb panels), so as to prevent the ceramic honeycomb panels from bursting due to thermal expansion and contraction. The separation groove 6 leaves a thermal expansion and contraction deformation interval for the adjacent infrared combustion parts 5, so that the ceramic honeycomb panels have a longer service life. At the same time, it also solves the problem that gas combustion and infrared combustion cannot be used at the same combustion position at the same time.

[0069] The central atmospheric combustion structure 1 burns alone in a low-fire state of the burner body 4;

[0070] The central atmospheric combustion structure 1 and the outer ring atmospheric combustion structure 2 burn simultaneously to a medium fire state of the burner body 4;

[0071] The central atmospheric combustion structure 1 and the outer ring infrared combustion structure 3 burn simultaneously to form a high-fire state of the burner body 4;

[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 a fierce fire state of the burner body 4 .

[0073] During the heating process of the outer ring infrared combustion structure 3 , the infrared combustion parts 5 undergo thermal expansion and deformation along the corresponding separation grooves 6 , thereby preventing the infrared combustion parts 5 from bursting.

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

[0075] A pot rack 7 is provided on the upper part of the stove body 4, and a plurality of supporting legs 8 for supporting the cooking container are provided on the pot rack 7;

[0076] Each support foot 8 is arranged correspondingly to a partition groove 6 in the upper and lower parts. The support foot 8 is located directly above the partition groove 6. The position of 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 foot 8 when burning.

[0077] The stove head body 4 is provided with a pot rack 7, and the pot rack 7 is provided with a plurality of supporting feet 8 for supporting objects, and each supporting foot 8 is arranged in a one-to-one correspondence with each dividing groove 6, and the dividing groove 6 forms an infrared heat radiation avoidance space of the outer ring infrared combustion structure 3, so as to avoid the heat generated during the combustion of the outer ring infrared combustion structure 3 from being directly reflected vertically to the infrared combustion part 5 through the supporting feet 8 of the pot rack 7, so as to avoid the ceramic honeycomb plate from bursting during the heating and use process; and the dividing groove 6 forms a combustion avoidance space between the pot rack 7 and the outer ring infrared combustion structure 3. The dividing groove 6 forms a fire avoidance groove for the supporting feet 8 of the pot rack 7, and there is no obstruction when the outer ring infrared combustion structure 3 burns, and the firepower is not affected, thereby reducing smoke emissions. And the dividing groove 6 is used to install the outer ring atmospheric combustion structure 2 part.

[0078] The position outside the dividing groove 6 that is not blocked by the outer ring infrared combustion structure 3 and the burner body 4 constitutes the oxygen supplementation 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 at the same time;

[0079] During the simultaneous combustion of the outer ring atmospheric combustion structure 2 and the outer ring infrared combustion structure 3 , the fuel gas output from the outer ring atmospheric combustion structure 2 to the outside of the separation groove 6 is fully burned under the infrared high temperature catalytic action of the outer ring infrared combustion structure 3 .

[0080] In this embodiment, when the gas output by the outer ring atmospheric combustion structure 2 is fully burned under the infrared high temperature catalysis, the firepower at the junction between the outer ring atmospheric combustion structure 2 and the outer ring infrared combustion structure 3 is more intense. The principle of the full combustion of the gas under the infrared high temperature catalysis mainly includes the following steps and mechanisms:

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

[0082] Generation of infrared radiation: The fuel gas undergoes a redox reaction with oxygen in the air under the action of a catalyst to generate carbon dioxide and water vapor, and release infrared radiation. These infrared radiations are within the mid- and far-infrared wavelength range of 3.8 microns to 6.8 microns and can be effectively absorbed by the heated object, thereby achieving rapid heating.

[0083] Characteristics of infrared radiation: Infrared radiation is targeted, penetrating and efficient. It only heats the surface of the object, but not the air. It can penetrate the inside of the object to heat it, thus achieving heating from the inside out.

[0084] Efficiency and speed: Compared with traditional heating methods, gas catalyst catalytic infrared heating has higher energy utilization efficiency and faster heating speed. Infrared radiation directly acts on the surface of the heated object, reducing energy loss and making the heating process more efficient and faster.

[0085] The upper part of the burner body 4 is the combustion area, 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 area of ​​the burner body 4;

[0086] The burner 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] The outer ring atmospheric combustion structure 2 and the outer ring infrared combustion structure 3 are both located at the upper part of the infrared combustion mixing chamber 17;

[0088] The output end of the outer ring atmospheric air intake passage 38 is communicated with the input end of the outer ring atmospheric combustion structure 2 .

[0089] The outer ring atmospheric air 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 air inlet passage 39 , and the central atmospheric combustion structure 1 is arranged on the output end of the central fire air inlet passage 39 .

[0091] An inner cylinder 26 is provided in the burner body 4, a central fire air intake channel 39 extends into the inner cylinder 26 and extends upward, the central atmospheric combustion structure 1 is located at the upper part of the inner cylinder 26, the outer ring atmospheric air intake channel 38 and the infrared combustion mixing chamber 17 are located at the outside of 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 at the upper side of the inner cylinder 26.

[0092] The inner cylinder 26 has a cavity that passes through from top to bottom. The cavity of the inner cylinder 26 forms an air supply cavity for installing a fixing bracket 31 and communicating with the outside air, so as to realize oxygen supply during the combustion process of the central atmospheric combustion structure 1; a thermocouple 30 and an ignition needle 29 are arranged on the fixing bracket 31, 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 shape or a cylindrical shape, and is fixed to the inner bottom wall of the infrared combustion mixing chamber 17 by welding.

[0094] The position height of the inner cylinder 26 on the burner 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-gathering concave surface;

[0095] The inner cylinder 26 is in the shape of a cylindrical or conical structure;

[0096] The inner cylinder body 26 is provided with an inner cylinder air hole 42 on the top side thereof, and the output end of the outer ring atmospheric air intake passage 38 is connected to the inner cylinder air hole 42;

[0097] The outer ring atmospheric air inlet channel 38 is partially located at the periphery of the inner cylinder 26 and forms an air supply channel 41 connected to the inner cylinder air hole 42 between the inner cylinder 26. The gas enters the inner cavity of the inner cylinder 26 through the air 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 inner top of the inner cylinder 26 constitutes the inner cylinder combustion part of the outer ring atmospheric combustion structure 2. This structure is conducive to further increasing the firepower of the stove, and the outer ring atmospheric combustion structure 2 can increase the combustion area;

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

[0099] The inner cylinder body 26 is provided with a plurality of inner cylinder air holes 42 which are arranged at intervals around the circumference.

[0100] The top of the inner side of the inner cylinder 26 can also be a component of the outer ring atmospheric combustion structure 2. A plurality of inner cylinder air holes 42 arranged at intervals in a circumference are provided on the inner side of the top of the inner cylinder 26 to increase 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 air intake passage 38 includes an outer ring atmospheric air intake pipe 11 and an outer ring atmospheric bronchial pipe 13 communicating with the outer ring atmospheric air intake pipe 11, and the outer ring atmospheric combustion structure 2 is connected to the outer ring atmospheric bronchial pipe 13;

[0102] The air inlet end of the outer ring atmospheric air inlet pipe 11 is provided with an outer ring atmospheric ejector pipe 15; the air supply passage 41 is connected to the outer ring atmospheric air inlet pipe 11;

[0103] The gas supply channel 41 and the outer ring atmospheric bronchial pipe 13 are set as a whole, and the gas supply channel 41 is located between the outer ring atmospheric bronchial pipe 13 and the inner cylinder 26; when the gas supply channel 41 and the outer ring atmospheric bronchial pipe 13 are set as a whole, the gas supply channel 41 is set in the outer ring atmospheric bronchial pipe 13, and the gas enters the outer ring atmospheric inlet pipe 11, the outer ring atmospheric bronchial 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 bronchial tube 13 are separately arranged, and the air supply channel 41 is arranged in an outer ring shape on the outside of the inner cylinder 26, and one end of the air supply channel 41 is inserted into the outer ring atmospheric air intake pipe 11, and the outer ring atmospheric air intake pipe 11 is connected to the air intake cavity of the air supply channel 41, and the air outlet end of the air supply channel 41 is connected to the inner cylinder air hole 42.

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

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

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

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

[0109] In this embodiment, the interior of the outer ring atmospheric bronchial tube 13 is a hollow structure, one end of the outer ring atmospheric bronchial tube 13 is fixed to the outer ring atmospheric inlet pipe 11 by welding, and the other end of the outer ring atmospheric bronchial tube 13 is fixed to the outer ring atmospheric combustion component 9 by welding.

[0110] In this embodiment, the outer ring atmospheric bronchial tube 13, the outer ring atmospheric air intake tube 11 and the atmospheric combustion element 9 can be connected to form a whole by welding or screwing. The outer ring atmospheric air intake tube 11 is provided with an insertion port for inserting the outer ring atmospheric bronchial tube 13.

[0111] The outer ring atmospheric combustion structure 2 comprises an outer ring atmospheric combustion member 9 installed on the dividing groove 6, each dividing 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 and fire outlet portions 10 connected to the outside air;

[0112] In this embodiment, the outer ring atmospheric combustion member 9 is a bent structure, such as Figure 5 As shown, supporting feet 36 for supporting the infrared combustion element 5 are provided on the left and right sides of the outer ring atmospheric combustion element 9, 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 along the lower cavity 37 to the outside of the combustion outlet portion 10.

[0113] The burner body 4 is provided with an outer ring infrared combustion ejector tube 18 connected to the infrared combustion mixing chamber 17;

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

[0115] The overall shape between the outer ring atmosphere intake pipe 11 and the outer ring atmosphere ejection pipe 15 is P-shaped, Y-shaped or 9-shaped.

[0116] The position height of the combustion and fire outlet portion 10 on the burner body 4 is higher than the position height of the infrared combustion element 5 on the burner body 4 , and does not hinder the combustion position of the outer ring atmosphere combustion member 9 .

[0117] The infrared combustion element 5 is a ceramic honeycomb plate, and the side cross-section of the infrared combustion element 5 is an arc-shaped concave plate, a straight plate or a wavy plate; the top projection of the infrared combustion element 5 is an ellipse, a circle, an arc fan or a polygon, and the polygon is a diamond, a square or a petal shape; the outer ring atmospheric combustion part 9 is tubular as a whole.

[0118] In this embodiment, the ceramic honeycomb plate is designed in a wavy shape, so that during the combustion process of the outer ring atmospheric combustion structure 2, the outer ring atmospheric open flame can be wavy around the ceramic plate, and there is space for air replenishment.

[0119] The outer ring atmosphere intake pipe 11 is provided with an outer ring atmosphere ejection pipe 15 , and the outer ring atmosphere ejection pipe 15 is provided with a first ejection channel 16 connected to the outer ring atmosphere intake pipe 11 .

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

[0121] An infrared combustion mixing chamber 17 is provided in the burner body 4, and a plurality of infrared combustion parts 5 are located on the top opening of the infrared combustion mixing chamber 17. An outer ring infrared combustion ejector tube 18 is provided on the burner body 4, and the outer ring infrared combustion ejector tube 18 is provided with a second ejector channel 19 connected to the infrared combustion mixing chamber 17.

[0122] The central atmosphere combustion structure 1 comprises a central fire combustion member 20; the central fire combustion member 20 is provided with a central fire combustion outlet hole 23; the outside air is connected with the central fire combustion outlet hole 23 in sequence;

[0123] In this embodiment, the thermocouple 30 and the ignition needle 29 are arranged on a fixed bracket 31, and a first mounting hole for mounting the thermocouple 30 is provided on the fixed bracket 31, and a second mounting hole for mounting the ignition needle 29 is provided on the fixed bracket 31. The fixed bracket 31 is provided with a sleeve on the outer side of the center fire combustion ejector tube 24, and the fixed bracket 31 is arranged at a position close to the outer side of the top of the center fire combustion ejector tube 24.

[0124] In this embodiment, the fixing bracket 31 can be fixed to the outer side of the center fire combustion ejector tube 24 by screws or welding.

[0125] The central fire combustion member 20 is provided with a central fire combustion introduction tube 24 at one end, and the central fire combustion introduction tube 24 is provided with a third introduction channel 25 connected to the central fire combustion outlet hole 23;

[0126] The burner body 4 is provided with a concave cavity forming an infrared combustion mixing chamber 17, and an inner cylinder 26 is provided on the bottom wall of the concave cavity. The inner cylinder 26 is extended upward toward the bottom wall of the concave cavity. The center fire combustion ejector tube 24 is inserted into the concave cavity of the burner body 4 and extends into the inner cylinder 26 in a zigzag manner. The center fire combustion ejector tube 24 extends into the inner cylinder 26. A mounting member 27 for mounting the center fire combustion member 20 is provided on the end of the inner cylinder 26.

[0127] The concave 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 concave 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 injector tube 18, the gas is premixed with the air at the air inlet of the outer ring infrared combustion injector tube 18, and the premixed air and gas enter the second injector channel 19. The premixed air and gas enter the inner cavity of the burner body 4 (infrared combustion mixing chamber 17) along the second injector channel 19 for secondary premixing. After the gas is ignited, it heats the honeycomb infrared combustion element 5 (ceramic honeycomb panel).

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

[0130] In the present embodiment, the outer ring infrared combustion introducer tube 18 is bent so that the outer ring infrared combustion introducer tube 18 is arranged around the outside of the inner cylinder 26 in the inner cavity of the burner body 4 and extends into the infrared combustion mixing chamber 17. Specifically, the outer ring infrared combustion introducer tube 18 includes a boost section 32, a mixing section 33 and a diffusion section 34 arranged in sequence along the airflow direction, and the boost section 32 is arranged outside the infrared combustion mixing chamber 17.

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

[0132] A supporting step 28 for supporting the infrared combustion element 5 is provided in the concave cavity of the burner body 4 .

[0133] In this embodiment, a connecting section is provided on the outer side of the inner cylinder 26 to connect with the diffusion section 34 of the outer ring infrared combustion ejector tube 18, and the connecting section is arranged on the outer side of the inner cylinder 26. The outer ring infrared combustion ejector tube 18 is inserted into the inner cavity of the burner body 4, and the diffusion section 34 is connected to the connecting section by pipeline (the diffusion section 34 is inserted into the connecting section).

[0134] The above is a preferred embodiment of the present invention, which shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may have various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected, and the scope of the present invention to be protected is defined by the attached claims and their equivalents.

Claims

1. An atmospheric and infrared combined cooker, comprising a burner body (4), characterized in that: A central atmospheric combustion structure (1), an outer ring atmospheric combustion structure (2) and an outer ring infrared combustion structure (3) are provided at the combustion position of the burner body (4); 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); The outer ring infrared combustion structure (3) comprises a plurality of infrared combustion elements (5), a separation groove (6) is left between two adjacent infrared combustion elements (5), and the outer ring atmospheric combustion structure (2) is arranged on the separation groove (6).

2. The atmospheric and infrared combined cooker according to claim 1, characterized in that: The central atmospheric combustion structure (1) burns alone in a low-fire state of the burner body (4); The central atmospheric combustion structure (1) and the outer ring atmospheric combustion structure (2) burn simultaneously to a medium fire state of the burner body (4); The central atmospheric combustion structure (1) and the outer ring infrared combustion structure (3) burn simultaneously to form a high-fire state of the burner body (4); 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 a fierce fire state of the burner head main body (4).

3. The atmospheric and infrared combined cooker according to claim 1, characterized in that: The separation groove (6) leaves a thermal expansion and contraction deformation zone for the adjacent infrared combustion element (5); The two adjacent infrared combustion elements (5) are arranged in a split form, and the separation groove (6) passes through the inner and outer sides of the two adjacent infrared combustion elements (5).

4. The atmospheric and infrared combined cooker according to claim 1, characterized in that: A pot rack (7) is provided on the upper part of the stove head main body (4), and a plurality of supporting legs (8) for supporting a cooking container are provided on the pot rack (7); Each support foot (8) is disposed in correspondence with a partition groove (6) in an upper and lower manner. The support foot (8) is located directly above the partition groove (6). The location of the partition groove (6) forms an infrared heat radiation avoidance space for the outer ring infrared combustion structure (3), so that the vertically upward heat radiation of the infrared combustion element (5) is not blocked by the support foot (8) when it is burning.

5. The atmospheric and infrared combined cooker according to claim 1, characterized in that: The position of the outer periphery of the separation groove (6) that is not blocked by the outer ring infrared combustion structure (3) and the burner body (4) constitutes an 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; During the simultaneous combustion of the outer ring atmospheric combustion structure (2) and the outer ring infrared combustion structure (3), the fuel gas output from the outer ring atmospheric combustion structure (2) to the outside of the separation groove (6) is fully burned under the infrared high temperature catalytic action of the outer ring infrared combustion structure (3).

6. The atmospheric and infrared combined cooker according to claim 1, characterized in that: The upper part of the burner body (4) is the combustion area, 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 area of ​​the burner body (4); The burner 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 passage (38); The outer ring atmospheric combustion structure (2) and the outer ring infrared combustion structure (3) are both located at the upper part of the infrared combustion mixing chamber (17); The output end of the outer ring atmospheric air intake channel (38) is in communication with the input end of the outer ring atmospheric combustion structure (2).

7. The atmospheric and infrared combined cooker according to claim 6, characterized in that: The outer ring atmospheric air intake channel (38) and the infrared combustion mixing chamber (17) are located outside the central atmospheric combustion structure (1); The burner 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); An inner cylinder (26) is provided inside the burner body (4), a central fire air intake passage (39) extends into the inner cylinder (26) and extends upward, a central atmospheric combustion structure (1) is located at the upper part of the inner cylinder (26), an outer ring atmospheric air intake passage (38) and an infrared combustion mixing chamber (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 at the upper side of the inner cylinder (26).

8. The atmospheric and infrared combined cooker according to claim 6, characterized in that: The inner cylinder (26) has a cavity that passes through from top to bottom. The cavity of the inner cylinder (26) forms an air supply cavity for installing a fixed bracket (31) and communicating with external air, so as to realize oxygen supply during the combustion process of the central atmospheric combustion structure (1). The fixed bracket (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 burner 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-gathering concave surface; The inner cylinder (26) is in the shape of a cylindrical or conical structure; An inner cylinder air hole (42) is provided on the top side of the inner cylinder body (26), and the output end of the outer ring atmospheric air intake channel (38) is in communication with the inner cylinder air hole (42); The outer ring atmospheric air inlet channel (38) is partially located at the periphery of the inner cylinder (26) and forms an air supply channel (41) between the inner cylinder (26) and the inner cylinder air hole (42). The fuel gas enters the inner cavity of the inner cylinder (26) through the air supply channel (41) and the inner cylinder air hole (42). After the fuel gas is ignited, a combustion flame is formed at the top of the inner cylinder (26), so that the inner top of the inner cylinder (26) constitutes the 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 body (26) is provided with a plurality of inner cylinder air holes (42) arranged at intervals around the circumference.

9. The atmospheric and infrared combined cooker according to claim 7, characterized in that: The outer ring atmospheric air intake passage (38) comprises an outer ring atmospheric air intake pipe (11) and an outer ring atmospheric bronchial pipe (13) in communication with the outer ring atmospheric air intake pipe (11), and the outer ring atmospheric combustion structure (2) is connected to the outer ring atmospheric bronchial pipe (13); An outer ring atmospheric air intake pipe (11) is provided with an outer ring atmospheric air ejection pipe (15) at the air intake end; the air supply passage (41) is connected to the outer ring atmospheric air intake pipe (11); The air supply channel (41) and the outer ring atmospheric bronchus (13) are arranged as a whole, and the air supply channel (41) is located between the outer ring atmospheric bronchus (13) and the inner cylinder (26); Alternatively, the air supply channel (41) and the outer ring atmospheric bronchus (13) are arranged separately; An outer ring infrared combustion ejector tube (18) communicating with the infrared combustion mixing chamber (17) is provided in the furnace head body (4); The central fire air inlet passage (39) comprises a vertical air pipe (40) extending upward into the inner cylinder (26), and a central fire combustion ejector pipe (24) inserted transversely into the burner body (4), and the central atmospheric combustion structure (1), the vertical air pipe (40) and the central fire combustion ejector pipe (24) are in communication; The overall shape between the outer ring atmosphere intake pipe (11) and the outer ring atmosphere ejection pipe (15) is in a P shape, a Y shape or a 9 shape.

10. The atmospheric and infrared combined cooker according to claim 1, characterized in that: The outer ring atmospheric combustion structure (2) comprises an outer ring atmospheric combustion member (9) mounted on the dividing groove (6), each dividing 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 and fire outlet portions (10) communicating with the outside air; The position height of the combustion and fire outlet portion (10) on the burner body (4) is higher than the position height of the infrared combustion element (5) on the burner body (4); The infrared combustion element (5) is a ceramic honeycomb plate, and 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 projection of the infrared combustion element (5) is elliptical, circular, arc-sector or polygonal, and the polygon is a rhombus, square or petal shape; the outer ring atmospheric combustion element (9) is tubular as a whole.

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