Infrared burner and oven

Abstract

The utility model discloses an infrared burner and an oven, which comprise a burning tube, a plurality of heating elements, a plurality of heating elements and a plurality of heating elements, wherein the burning tube is provided with a plurality of fire outlet holes; the cover body comprises a heating area, a closed opening communicated with the heating area, and an infrared radiation plate located above the heating area; the cover body is combined with the combustion tube through the closed opening, so that the fire outlet hole faces and is communicated with the heating area, the fire outlet hole sprays flames to burn the infrared radiant panel, and the infrared radiant panel is burnt red to generate infrared radiation. By the adoption of the scheme, the infrared burner and the oven have the advantages that flames combusted by the fire outlet holes are concentrated in the heating area, so that high temperature is collected in the heating area to heat the infrared radiant panel, and the infrared radiant panel becomes red after being heated to generate infrared radiation for heat supply.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of combustor, concretely relates to an infrared combustor and oven. BACKGROUND

[0002] The traditional gas oven is heated by the gas combustion, and the heated air forms hot air current to flow through the food on the grill to roast.

[0003] However, the above-mentioned roasting method has the problem that the hot air current flows through the surface of the food to heat, and the internal part of the food needs to be heated by the heat conduction of the food itself after the surface of the food is heated, so that the surface of the food is often roasted and the internal part is not cooked thoroughly. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model aims to provide an infrared combustor and oven which concentrates the flame burned by the fire hole in the heating area to make the heating area collect high temperature to heat the infrared radiation plate, so that the infrared radiation plate is heated to red to generate infrared radiation for heating.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] An infrared combustor comprises a combustion pipe and a cover body, the combustion pipe is provided with a plurality of fire holes, and the plurality of fire holes are distributed at different positions in the length direction of the combustion pipe; the cover body comprises a heating area, a closed opening in communication with the heating area, and an infrared radiation plate above the heating area, the infrared radiation plate is made of metal material; the cover body is combined with the combustion pipe through the closed opening, so that the fire holes are directed to the heating area, and the fire holes are in communication with the heating area, the fire holes are used to spray flame to scorch the infrared radiation plate, so that the infrared radiation plate is heated to red to generate infrared radiation.

[0007] The utility model is further provided that the cover body comprises closed fences arranged on both sides of the infrared radiation plate, the closed fences are provided with closed ends abutting against the outer peripheral wall of the combustion pipe, and the position of the closed end is lower than that of the fire hole.

[0008] The utility model is further provided that the closed fence is in the form of an inclined plate, one side of the closed fence inclined upward is connected to one side of the infrared radiation plate, and the closed end is arranged on the side of the closed fence inclined downward; and / or the closed fence is detachably arranged on the infrared radiation plate.

[0009] The utility model further sets up: a plurality of second airflow channels are arranged on the closed fence, and the second airflow channels are distributed at different positions of the length direction of the closed fence, and / or a plurality of first airflow channels are arranged on the infrared radiation plate, and the first airflow channels are distributed at different positions of the length direction of the infrared radiation plate.

[0010] The utility model further sets up: a plurality of first fire holes are arranged on the top of the combustion pipe, and the first fire holes are arranged along the length direction of the combustion pipe, and the first fire holes spray flames upwards, and / or a plurality of second fire holes and a plurality of third fire holes are arranged on the top of the combustion pipe, and the second fire holes are arranged along the length direction of the combustion pipe, and the third fire holes are arranged along the length direction of the combustion pipe, and / or a plurality of fourth fire holes are arranged on the top of the combustion pipe, and the fourth fire holes are arranged along the length direction of the combustion pipe, and the fourth fire holes are arranged on the top of the combustion pipe and are provided with first fire parts and second fire parts on both sides.

[0011] An infrared burner is characterized by comprising: a combustion pipe; an infrared radiation plate, which is located above the combustion pipe and is arranged along the length direction of the combustion pipe, is arranged in an upward arch shape, has a width of s1, has an arch height of h, satisfies s1>h and / or 2*h≤s1≤5*h, has an infrared radiation surface on the top, and is provided with a plurality of first airflow channels; a heating area, which is formed between the combustion pipe and the infrared radiation plate; and the combustion pipe burns in the heating area to heat the infrared radiation plate and make the infrared radiation surface red and generate infrared radiation.

[0012] The utility model further sets up: the infrared radiation plate comprises a first section and a second section located at both ends of the first section, and the average distance between adjacent first airflow channels on the first section is greater than the average distance between adjacent first airflow channels on each second section.

[0013] The utility model further sets up: the combustion pipe comprises an air inlet end and a pipe end, the second section comprises an air inlet section corresponding to the air inlet end and an end section corresponding to the pipe end, the distance between the end of the air inlet section away from the first section and the nearest first airflow channel is k1, the distance between the end of the end section away from the first section and the nearest first airflow channel is k2, and k1

[0014] The utility model further sets up: infrared radiation board is along the length direction of perpendicular infrared radiation board section arc shape setting, and / or, first air flow channel is round or S shape, and / or, the area of infrared radiation surface is s2, each first air flow channel projects on the area total sum of s3 on infrared radiation surface, 0.05*s2≤s3≤0.15*s2.

[0015] A kind of oven, it is characterized in that, including: furnace body;And, the infrared burner of above-mentioned;The infrared burner is arranged on the furnace body.

[0016] By adopting the above technical scheme, when burning gas, the front and rear direction arranged fire hole burns to produce flame at the front and rear different positions of heating area, the flame heats the air in the heating area and directly burns on the infrared radiation plate to heat, so that the infrared radiation plate is red, the infrared radiation plate is red and upwardly infrared radiates, the food is heated by the way of infrared radiation, the infrared rays can directly act on the food, and have good penetration to make the heating of the inside and outside of the food more uniform, prevent the food surface from being roasted and the inside from being not cooked through. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0018] Figure 1 It is the assembly drawing of the utility model embodiment one;

[0019] Figure 2 It is the sectional view of the utility model embodiment one;

[0020] Figure 3 It is the explosion view of the utility model embodiment one;

[0021] Figure 4 It is the schematic view of the cover body in the utility model embodiment one;

[0022] Figure 5 It is the schematic view of the combustion pipe in another embodiment of the utility model;

[0023] Figure 6 It is the schematic view of the combustion pipe in another embodiment of the utility model;

[0024] Figure 7 It is the schematic view of the combustion pipe in another embodiment of the utility model;

[0025] Figure 8 Assembly view of the cover body in the second embodiment of the present application;

[0026] Figure 9 Exploded view of the cover body in the second embodiment of the present application;

[0027] Figure 10 Assembly view of the cover body in another embodiment of the present application;

[0028] Figure 11 Assembly view of the cover body in the third embodiment of the present application;

[0029] Figure 12 Exploded view of the cover body in the third embodiment of the present application;

[0030] Figure 13 Top view of the cover body in the third embodiment of the present application;

[0031] Figure 14 Assembly view of the fourth embodiment of the present application;

[0032] Figure 15 Sectional view of the fourth embodiment of the present application;

[0033] Figure 16 Exploded view of the fourth embodiment of the present application.

[0034] Explanation of reference signs:

[0035] 1. combustion tube;

[0036] 11. first fire hole; 12. second fire hole; 13. third fire hole; 14. fourth fire hole;

[0037] 111. air inlet end; 112. tube end; 141. first fire part; 142. second fire part;

[0038] 2. cover body;

[0039] 21. heating area; 22. infrared radiation surface; 23. infrared radiation plate; 24. closed fence; 25. second airflow channel; 26. first airflow channel; 27. closed opening;

[0040] 231. first section; 232. second section; 241. closed end;

[0041] 2321. air inlet section; 2322. end section;

[0042] 3. furnace body;

[0043] 31. furnace cavity; 32. support convex part;

[0044] 4. roasting net;

[0045] 5. The transparent plate;

[0046] 61. First connecting portion; 62. Second connecting portion. DETAILED DESCRIPTION

[0047] In order to make the person skilled in the art better understand the present application, so as to make the scope of the present application more clearly limited, the present application is described in detail below according to some specific embodiments of the present application. It should be noted that the following is only some specific embodiments of the present application concept, and only a part of the embodiments of the present application, and the specific and direct description of the related structure is only for the convenience of understanding the present application, and each specific feature does not limit the scope of the present application directly and directly. The routine selection and replacement made by the person skilled in the art under the guidance of the present application concept should be regarded as within the scope of the present application claimed.

[0048] Embodiment one:

[0049] As shown in Figures 1-4 The utility model discloses an infrared burner, comprising:

[0050] Combustion pipe 1, combustion pipe 1 is along the straight pipe shape of extending in front -back direction, and a plurality of fire holes are arranged on combustion pipe 1 along front -back direction, so that a plurality of fire holes are distributed at the length direction different position of combustion pipe 1;

[0051] Cover 2, cover 2 is located above combustion pipe 1, and cover 2 is provided with heating area 21 in, and cover 2 is composed of the infrared radiation board 23 of top and the closed fence 24 of left and right two sides, and is formed with the closed opening 27 below heating area 21, and the top of infrared radiation board 23 is provided with infrared radiation surface 22;

[0052] When using, cover 2 and combustion pipe 1 cooperate to make combustion pipe 1 close closed opening 27, and let fire hole be located in heating area 21, so that the flame of fire hole burns in heating area 21 to burn red infrared radiation board 23, that is, infrared radiation surface 22 is red.

[0053] Therefore, when burning gas, the fire hole arranged in front -back direction burns to produce flame at the front -back different position of heating area 21, and the flame heats the air in heating area 21 and directly burns on infrared radiation board 23 to heat, so that infrared radiation board 23 is burned red, that is, infrared radiation surface 22 is red. The infrared radiation surface 22 that is red carries out infrared radiation upwards, and the food is heated by the mode of infrared radiation. The infrared rays can directly act on the food, and have good penetration to make the heating of the inside and outside of the food more uniform, so as to prevent the food surface from being scorched while the inside is not cooked through.

[0054] The infrared radiation plate 23 is arranged in an upward arch shape, the left and right width of the infrared radiation plate 23 is s1, the arch height of the infrared radiation plate 23 is h, s1>h, and / or 2*h≤s1≤5*h, and in addition, a plurality of first air flow channels 26 are arranged through the infrared radiation plate 23.

[0055] Therefore, the upward arch-shaped infrared radiation plate 23 cooperates with the first air flow channels 26 on the infrared radiation plate 23, so that the heat flow from the heating area 21 will flow along the infrared radiation plate 23 to the first air flow channels 26 after rising above the bottom of the infrared radiation plate 23 to bring heat to different positions of the infrared radiation plate 23 to make the heating of the infrared radiation plate 23 more uniform, and finally the heat flow exits the heating area 21 upward through the first air flow channels 26. In addition, by limiting the left and right width of the infrared radiation plate 23 and the arch height of the infrared radiation plate 23, the infrared radiation plate 23 has a greater width and can cover a larger infrared radiation surface 22 upward, and the infrared radiation plate 23 has a lower height difference and can realize easier diffusion of heat flow in the width direction below the infrared radiation plate 23 to make the width sides of the infrared radiation surface 22 receive more heat for more uniform overall heating. In addition, due to the arrangement of the first air flow channels 26, the heat flow in the heating area 21 will flow upward, so that the outgoing heat flow upward directly contacts the food for heat conduction roasting, which improves the roasting efficiency under the dual action of heat conduction and infrared radiation.

[0056] Specifically, in the present embodiment, s1=3.6*h.

[0057] In the present embodiment, the first air flow channels 26 are arranged in a rectangular array on the infrared radiation plate 23, and each first air flow channel 26 is in the form of a circular hole.

[0058] Preferably, the cross section of the infrared radiation plate 23 in the present embodiment is arranged in a circular arc shape along the vertical front-rear direction, so as to form a cylindrical arc surface and diffuse outward in an arc shape for infrared radiation.

[0059] In other embodiments, the cross section of the infrared radiation plate 23 along the vertical front-rear direction can be in the form of a V shape or a multi-segment folded edge shape, etc.

[0060] It should be noted that, in order to prevent the heat in the heating area 21 from flowing out of the first airflow channel 26 rapidly without being in sufficient contact with the infrared radiation plate 23, so that the infrared radiation surface 22 cannot emit red, the following limitation is made: the area of the infrared radiation surface 22 is s2, the total area of the first airflow channel 26 projected on the infrared radiation surface 22 is s3, and 0.05*s2≤s3≤0.15*s2. In this way, by setting a proper ratio of the area of the infrared radiation surface 22 to the total area of the first airflow channel 26 projected on the infrared radiation surface 22, it can be ensured that the heat in the heating area 21 can be fully transferred to the infrared radiation plate 23 for the infrared radiation surface 22 to emit red.

[0061] In the present embodiment, s1>s4, d≥s4, and s1>d, and specifically, s1>3*s4 and d=s4.

[0062] Therefore, by setting the width of the closed opening 27 to be suitable for the diameter of the combustion pipe 1, the combustion pipe 1 can be effectively matched with the closed opening 27 to close the closed opening 27, and by setting the infrared radiation plate 23 with a larger width to increase the area of the infrared radiation, the radiation effect is more uniform.

[0063] In the present embodiment, the fire outlet holes include a plurality of second fire outlet holes 12 and a plurality of third fire outlet holes 13 arranged on the left and right sides of the top of the combustion pipe 1, and each of the second fire outlet holes 12 is arranged along the length direction of the combustion pipe 1, and each of the third fire outlet holes 13 is arranged along the length direction of the combustion pipe 1.

[0064] Therefore, the flame sprayed by the second fire outlet holes 12 directly heats the left half area of the heating area 21, and the flame sprayed by the third fire outlet holes 13 directly heats the right half area of the heating area 21, so that the heat flow of the left half area is more likely to flow to the left side of the infrared radiation plate 23, and the heat flow of the right half area is more likely to flow to the right side of the infrared radiation plate 23, so that the edge can be subjected to more heat, and the overall red emission of the infrared radiation surface 22 is more uniform.

[0065] Preferably, each of the second fire outlet holes 12 and the third fire outlet holes 13 extends along the radial direction of the combustion pipe 1, so that the flame is sprayed in an inclined manner, the spacing of the flame sprayed by the second fire outlet holes 12 and the third fire outlet holes 13 is increased, the heat is more uniform, and the processing is more convenient.

[0066] In other embodiments, for example, Figure 5As shown, the fire outlet holes are provided with a plurality of first fire outlet holes 11 arranged on the top of the combustion pipe 1, and each first fire outlet hole 11 is arranged along the length direction of the combustion pipe 1, wherein the first fire outlet hole 11 is a circular hole, so that the first fire outlet hole 11 sprays the flame upward. Therefore, the flame heats the middle part of the heating area 21 on the left and right sides, and then spreads to the left and right sides by the way of heat flow to make the infrared radiation surface 22 red.

[0067] As shown in other embodiments, Figure 6 , Figure 7 As shown, the fire outlet holes are provided with a plurality of fourth fire outlet holes 14 arranged on the top of the combustion pipe 1, and each fourth fire outlet hole 14 is arranged along the length direction of the combustion pipe 1, wherein, Figure 6 the fourth fire outlet hole 14 in the embodiment is an arc-shaped hole, Figure 7 the fourth fire outlet hole 14 in the embodiment is a V-shaped hole, so that the fourth fire outlet hole 14 is provided with a first fire outlet part 141 and a second fire outlet part 142 on the left and right sides of the top of the combustion pipe 1 to spray the flame upward. Therefore, the flame covers from the fourth fire outlet hole 14 and along the left and right directions, the flame sprayed by the first fire outlet part 141 directly heats the left half area of the heating area 21, and the flame sprayed by the second fire outlet part 142 directly heats the right half area of the heating area 21, so that the heat flow of the left half area is more easily flowed to the left side of the infrared radiation plate 23, and the heat flow of the right half area is more easily flowed to the right side of the infrared radiation plate 23, so that the edge can receive more heat, and the whole infrared radiation surface 22 is more uniformly red.

[0068] Wherein, due to the arrangement of the closed surrounding plate 24 on the left and right sides of the heating area 21, the left and right sides of the heating area 21 are covered by the closed surrounding plate 24, so that less heat in the heating area 21 is lost through the left and right sides of the infrared radiation plate 23, and the heat is more effectively transmitted to the infrared radiation plate 23 for the red of the infrared radiation surface 22.

[0069] In addition, the second air flow channel 25 is provided through the closed surrounding plate 24, so that when the combustion pipe 1 is burning, the external air can enter the heating area 21 through the second air flow channel 25 to supplement oxygen, thereby ensuring the complete combustion of the gas.

[0070] Preferably, the closed surrounding plate 24 in the embodiment is arranged on the infrared radiation plate 23 in an integrated manner to form a cover body 2, and the cover body 2 is a metal sheet.

[0071] Wherein, the closed surrounding plate 24 is provided with a closed end 241 abutting against the outer peripheral wall of the combustion pipe 1, and the position of the closed end 241 is lower than the position of the fire outlet hole, so that the closed opening 27 is more effectively closed by the abutment of the closed end 241 and the outer peripheral wall of the combustion pipe 1.

[0072] In the embodiment, the cover 2 is welded to the combustion pipe 1 at the closed end 241 to form a fixed connection state that cannot be disassembled. In other embodiments, a buckle or other means can be used to achieve a detachable fixed connection state of the cover 2 and the combustion pipe 1.

[0073] Preferably, the closed fence 24 is in the form of an inclined plate, and the side of the closed fence 24 inclined upward is connected to one side of the infrared radiation plate 23, and the closed end 241 is arranged on the side of the closed fence 24 inclined downward.

[0074] Therefore, the combination of the above structures makes the cover 2 and the heating area 21 similar to a fan-shaped structure, and compared with a square structure, the heating area 21 has a smaller volume and a more regular overall structure, and the closed fence 24 has an effect of guiding the heat flow and flame upward, which more effectively heats the infrared radiation plate 23 and improves the conversion efficiency of the heat energy of the flame into the radiant energy of the infrared radiation plate 23.

[0075] Specifically, the closed end 241 and the closed fence 24 are in the form of a bent structure to form an arc-shaped transition corner therebetween, and the abutment of the outer wall of the combustion pipe 1 to the transition corner can achieve smaller extrusion stress therebetween.

[0076] Preferably, the spacing between the two closed ends 241 extends downward and gradually increases, so that the flared closed ends 241 are more convenient and smooth when the cover 2 and the combustion pipe 1 are relatively positioned.

[0077] In other embodiments, the closed fence 24 is not arranged.

[0078] Embodiment two:

[0079] As shown in Figure 8 , Figure 9 The utility model discloses an infrared burner, and its main structure is same with embodiment one, and the difference lies in that the first airflow channel 26 is arranged on the left and right two rows of both sides of the top of infrared radiation plate 23, and the first airflow channel 26 of each row is arranged in the interval along the front and back direction, in addition, each first airflow channel 26 is in S shape.

[0080] In addition, the difference between the embodiment and embodiment one also includes the shape and size of the second airflow channel 25, and a larger square second airflow channel 25 is arranged, so that the left and right sides of the heating area 21 can better communicate with the outside.

[0081] Therefore, when the heat in the heating area 21 is excessive, the flame intensity of the gas pipe is greater, and the heat can overflow the heating area 21 through the second airflow channel 25, and the remaining heat can effectively heat to make the infrared radiation surface 22 red, which has the effect of preventing the infrared radiation surface 22 from being unevenly red due to excessive heat.

[0082] Correspondingly, the closed fence 24 and the infrared radiation plate 23 are connected in a detachable manner. In the embodiment, the upper side of the closed fence 24 is provided with a plurality of first connecting parts 61. Correspondingly, the left and right sides of the infrared radiation plate 23 are respectively provided with second connecting parts 62. The first connecting part 61 and the second connecting part 62 are buckled or connected by bolts and nuts through alignment.

[0083] Therefore, different closed fences 24 can be replaced to adapt to different sizes of the heating area 21 and the combustion pipe 1 by changing the distribution, shape and size of the second airflow through holes on the different closed fences 24.

[0084] As shown in the cover 2 configured in the second airflow passage 25 formed by the gas pipe, the heat in the heating area 21 is more easily dissipated, and as shown in the cover 2 configured in the matrix-arranged circular second airflow passage 25 formed by the gas pipe, the heat dissipation from the heating area 21 is reduced. Figure 8 Figure 10

[0085] Embodiment three:

[0086] As shown in the cover 2 configured in the second airflow passage 25 formed by the gas pipe, the heat in the heating area 21 is more easily dissipated, and as shown in the cover 2 configured in the matrix-arranged circular second airflow passage 25 formed by the gas pipe, the heat dissipation from the heating area 21 is reduced. Figures 11-13 The infrared burner disclosed by the utility model mainly comprises a combustion pipe 1, a cover 2 and an infrared radiation plate 23. The combustion pipe 1 is arranged in the cover 2, and the infrared radiation plate 23 is arranged on the cover 2. The combustion pipe 1 is provided with a plurality of first airflow passages 26, and the infrared radiation plate 23 is provided with a plurality of second airflow through holes 27 corresponding to the first airflow passages 26. The cover 2 is provided with a closed fence 24, and the closed fence 24 is provided with a plurality of second airflow through holes 27 corresponding to the first airflow passages 26.

[0087] Therefore, the heat flow formed by the combustion of the middle part of the gas pipe will flow to the second section 232 from the front or the back due to the dispersion of the first airflow passages 26 on the first section 231, so as to bring heat to the second section 232 to heat the second section 232, so that more heat energy is diffused to the end part to improve the uniformity of the red radiation surface 22.

[0088] More preferably, the combustion pipe 1 comprises an air inlet end 111 at the front end and a pipe end 112 at the rear end. The second section 232 comprises an air inlet section 2321 corresponding to the air inlet end 111 and an end section 2322 corresponding to the pipe end 112. The distance between the end of the air inlet section 2321 away from the first section 231 and the nearest first airflow passage 26 is k1, and the distance between the end of the end section 2322 away from the first section 231 and the nearest first airflow passage 26 is k2, k1 < k2.

[0089] ​​It needs to be explained that because the mixed gas of gas and air which is inhaled by the front end of the gas pipe is not heated, the energy provided by the combustion for heating the heating area 21 is less, so the temperature of the heating area 21 close to the air inlet end 111 is lower, and the mixed gas of gas and air of the rear end is heated when being transmitted through the gas pipe, so the temperature is higher, and the energy provided by the combustion for heating the heating area 21 is more, so the temperature of the heating area 21 close to the pipe end 112 is higher, in order to realize that the front and rear temperatures of the infrared emitting surface are more uniform, the first air flow channel 26 at the air inlet section 2321 is arranged to be closer to the end, so that the heat flow in the heating area 21 can be more guided to the end of the air inlet section 2321 to improve the heating of the end of the air inlet section 2321, so that the uniformity can be optimized.

[0090] Embodiment four:

[0091] As Figures 14-16 shown, the utility model discloses a kind of ovens, including furnace body 3 and the infrared burner described in embodiment one to embodiment three, the setting of furnace cavity 31 of upper opening is carried out in furnace body 3 inside, and furnace body 3 is located in the setting of baking net 4 above furnace cavity 31;Infrared burner is arranged in furnace cavity 31, and combustion pipe 1 is connected with gas so that combustion pipe 1 can be combusted to produce flame at each fire hole.

[0092] Therefore, food to be baked can be placed on baking net 4, and infrared radiation is generated by the infrared radiation surface 22 to act on the food for baking by the combustion of infrared burner.

[0093] Among them, the rear end of combustion pipe 1 is installed by being inserted on the side wall of furnace body 3.

[0094] In addition, transparent plate 5 is also set in furnace cavity 31;Transparent plate 5 is arc-shaped structure, and the length direction of transparent plate 5 is along front and back direction, correspondingly, support convex part 32 is set on the front and back sides of transparent plate 5 in furnace body 3, so that the front and back ends of transparent plate 5 are supported on support convex part 32 to be relatively fixed, and transparent plate 5 in fixed state is located above cover body 2 to cover infrared radiation plate 23.

[0095] Therefore, the infrared radiation generated by the lower infrared radiation surface 22 can be radiated upwards through transparent plate 5 due to the transparent material of transparent plate 5, and the garbage falling from above will not fall on infrared radiation plate 23 under the shielding of transparent plate 5, so as to prevent the garbage from affecting the radiation effect of infrared radiation surface 22 and preventing the garbage from blocking first air flow channel 26.

[0096] Among them, transparent plate 5 can adopt glass plate or other high-temperature-resistant polymer plate.

[0097] Embodiment five:

[0098] A kind of oven, its main structure is identical with embodiment four, difference lies in, cover 2 and combustion pipe 1 are only contacted non-fixed connection, or both do not contact, the way that can be realized is that closed end 241 is only close to combustion pipe 1, and the fixed connection between both is not carried out such as welding or buckle etc.

[0099] Alternatively, cover 2 uses the structure that does not set closed fence 24, only has infrared radiation plate 23.

[0100] Correspondingly, cover 2 and combustion pipe 1 are directly fixed and installed on oven to make cover 2 and combustion pipe 1 keep stable relative position, under stable relative position to form the state shown in embodiment one to embodiment three.

[0101] The above description of disclosed embodiments enables those skilled in the art to make or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will accord with the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An infrared burner characterized in that, Comprising: a combustion tube (1) provided with a plurality of flame outlets distributed at different positions along the length of the combustion tube (1); and a cover (2) comprising a heating area (21), a closed opening (27) in communication with the heating area (21), and an infrared radiation plate (23) above the heating area (21), the infrared radiation plate (23) being made of metal; the cover (2) is combined with the combustion tube (1) through the closed opening (27) so that the flame outlets are directed towards the heating area (21) and in communication with the heating area (21), and the flame outlets are used to spray flames to burn the infrared radiation plate (23) so that the infrared radiation plate (23) is heated to generate infrared radiation.

2. The infrared burner of claim 1, wherein: The cover (2) comprises closed side plates (24) arranged on both sides of the infrared radiation plate (23), the closed side plates (24) are provided with closed ends (241) abutting the outer wall of the combustion tube (1), and the position of the closed ends (241) is lower than that of the flame outlets.

3. The infrared burner of claim 2, wherein: The closed side plates (24) are inclined plates, one side of the closed side plates (24) inclined upwards is connected to one side of the infrared radiation plate (23), and the closed ends (241) are arranged on the side of the closed side plates (24) inclined downwards; and / or, The closed side plates (24) are detachably arranged on the infrared radiation plate (23).

4. The infrared burner of claim 2, wherein: The closed side plates (24) are provided with a plurality of second air flow channels (25) distributed at different positions along the length of the closed side plates (24); and / or, The infrared radiation plate (23) is provided with a plurality of first air flow channels (26) distributed at different positions along the length of the infrared radiation plate (23).

5. The infrared burner of claim 1, wherein: The flame outlets comprise a plurality of first flame outlets (11) at the top of the combustion tube (1), and each first flame outlet (11) is arranged along the length of the combustion tube (1), and the first flame outlets (11) spray flames upwards; and / or, The flame outlets comprise a plurality of second flame outlets (12) and a plurality of third flame outlets (13) on both sides of the top of the combustion tube (1), and each second flame outlet (12) is arranged along the length of the combustion tube (1), and each third flame outlet (13) is arranged along the length of the combustion tube (1); and / or, The flame outlets comprise a plurality of fourth flame outlets (14) at the top of the combustion tube (1), and each fourth flame outlet (14) is arranged along the length of the combustion tube (1), and each fourth flame outlet (14) is provided with a first flame part (141) and a second flame part (142) on both sides of the top of the combustion tube (1).

6. An infrared burner characterized by, Comprising: a combustion tube (1); An infrared radiation plate (23) is arranged above the combustion pipe (1) and extends along the length direction of the combustion pipe (1), the infrared radiation plate (23) is arranged in an upward arch shape, the width of the infrared radiation plate (23) is s1, the arch height of the infrared radiation plate (23) is h, s1>h, and / or, 2*h≤s1≤5*h, the top of the infrared radiation plate (23) is provided with an infrared radiation surface (22), and a plurality of first airflow channels (26) are arranged through the infrared radiation plate (23); A heating area (21) is formed between the combustion pipe (1) and the infrared radiation plate (23); the combustion pipe (1) burns in the heating area (21) to heat the infrared radiation plate (23) to make the infrared radiation surface (22) generate infrared radiation.

7. The infrared burner of claim 6, wherein: The infrared radiation plate (23) comprises a first section (231) and a second section (232) located at both ends of the first section (231), and the average distance between adjacent first airflow channels (26) on the first section (231) is greater than the average distance between adjacent first airflow channels (26) on each second section (232).

8. The infrared burner of claim 7, wherein: The combustion pipe (1) comprises an air inlet end (111) and a pipe end (112), and the second section (232) comprises an air inlet section (2321) corresponding to the air inlet end (111) and an end section (2322) corresponding to the pipe end (112); The distance between the end of the air inlet section (2321) away from the first section (231) and the nearest first airflow channel (26) is k1, the distance between the end of the end section (2322) away from the first section (231) and the nearest first airflow channel (26) is k2, and k1 9. The infrared burner of claim 6, wherein: The infrared radiation plate (23) is arranged in a circular arc shape along the cross section perpendicular to the length direction of the infrared radiation plate (23); and / or, The first airflow channel (26) is circular or S-shaped; and / or, The area of the infrared radiation surface (22) is s2, the total area of each first airflow channel (26) projected on the infrared radiation surface (22) is s3, and 0.05*s2≤s3≤0.15*s2.

10. An oven, characterized by Comprise: a furnace body (3); and, The infrared burner of any one of claims 1-9; The infrared burner is arranged on the furnace body (3).

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