Combustor assembly and infrared burner thereof

Abstract

The application discloses a combustion body assembly and an infrared burner thereof. The combustion body assembly comprises a gas distribution disc, an inner cup body, a combustion plate and an adjusting member. The gas distribution disc has an upwardly open gas distribution cavity, and a supporting portion is arranged at the bottom of the gas distribution cavity. The inner cup body is arranged on the supporting portion and separates the gas distribution cavity into an inner ring gas cavity and an outer ring gas cavity. The combustion plate is arranged in the gas distribution cavity and covers the top openings of the inner ring gas cavity and the outer ring gas cavity. The adjusting member is arranged between the inner cup body and the supporting portion and is used for adjusting the height of the inner cup body, so that the upper end of the inner cup body tightly abuts against the lower surface of the combustion plate, and the lower end of the inner cup body tightly abuts against the supporting portion through the adjusting member. The combustion body assembly can adjust the height of the inner cup body in a floating manner, ensures that the inner ring gas cavity and the outer ring gas cavity do not have the gas mixing phenomenon, so that small fire can be stably combusted without being extinguished, and the top of the combustion plate can be prevented from being deformed or separated from the welding.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cooking utensils, in particular to a combustion body assembly and an infrared burner. BACKGROUND

[0002] The infrared cooking utensil mainly uses convection heat exchange and radiation heat exchange, and the surface combustion temperature of the combustion plate is about 1000 DEG C. It is difficult to meet the requirement of stable combustion of the flame under this working condition by merely increasing the thermal intensity of the fire hole of the combustion plate. Although increasing the diameter of the burner can effectively increase the thermal load of the burner, the uniformity of the gas distribution of the burner needs to be considered after the surface area of the combustion plate is increased, so that the gas combustion is sufficient and the surface temperature of the combustion plate is more uniform.

[0003] In addition, the height of the arc surface of the combustion plate has certain differences in the production process, which causes the inner cup body to be difficult to resist the bottom of the combustion plate during the assembly process of the combustion body assembly, so that the inner ring gas escapes to the outer ring gas cavity when the fire is small, and the gap is too large, so that the stable combustion of the small fire cannot be maintained and the flame is extinguished. If the inner cup body is too high and the interference amount is too large, the combustion plate top is easily deformed or separated. SUMMARY

[0004] The present application aims to at least solve one of the problems existing in the prior art to some extent. To this end, the present application provides a combustion body assembly which has a simple structure and can float and adjust the height of the inner cup body, so as to ensure that the inner and outer ring gas cavities do not have the phenomenon of gas mixing, so that the small fire is stably burned without extinguishing the flame, and the combustion plate top is prevented from being deformed or separated. The present application also provides an infrared burner.

[0005] According to the above-mentioned combustion body assembly, the following technical scheme is used to achieve the above-mentioned technical effects:

[0006] A combustion body assembly comprises a gas distribution disc having an upwardly open gas distribution cavity, a support portion being provided at the bottom of the gas distribution cavity; an inner cup body being arranged on the support portion and separating the gas distribution cavity into an inner ring gas cavity and an outer ring gas cavity; a combustion plate being arranged in the gas distribution cavity and covering the top openings of the inner ring gas cavity and the outer ring gas cavity; and an adjusting member being arranged between the inner cup body and the support portion and being used to adjust the height of the inner cup body, so that the upper end of the inner cup body tightly abuts the lower surface of the combustion plate and the lower end of the inner cup body tightly abuts the support portion through the adjusting member.

[0007] In some embodiments, the support portion comprises a support ring and an inner positioning ring; the adjusting member comprises a gasket, the gasket being arranged on the top of the support ring and being sleeved on the outer side of the inner positioning ring, a flange being integrally formed on the lower end of the outer side wall of the inner cup body and extending outwardly, and the flange tightly pressing the gasket on the support ring.

[0008] In some embodiments, a first sealing lip is arranged on the inner sidewall of the gasket and extends towards the inner positioning ring, and the first sealing lip abuts against the outer sidewall or the top of the inner positioning ring; and / or a second sealing lip is arranged on the bottom of the gasket and extends downwards, and the second sealing lip abuts against the top of the support ring.

[0009] In some embodiments, the gasket is provided with an annular clamping groove which opens towards the flange edge, and the flange edge is inserted into the annular clamping groove from top to bottom and is in interference fit with the opposite two groove walls of the annular clamping groove; and / or a deformable cavity is arranged inside the gasket below the flange edge.

[0010] In some embodiments, the adjusting member further comprises an upper elastic member, and a plurality of upper elastic members are circumferentially spaced apart in the annular clamping groove, and the flange edge of the inner cup body tightly presses each of the upper elastic members against the groove bottom surface of the annular clamping groove.

[0011] In some embodiments, the adjusting member further comprises a lower elastic member, and the gasket is circumferentially spaced apart to form a plurality of downwardly open mounting grooves, and the lower elastic member is embedded in each of the mounting grooves, and the upper and lower ends of the lower elastic member respectively abut against the groove top surface of the mounting groove and the support ring.

[0012] In some embodiments, a high-temperature-resistant sealing member is arranged between the inner cup body and the combustion plate.

[0013] In some embodiments, a heat insulation plate is further included, the heat insulation plate is arranged in the outer ring gas cavity and is fixedly connected with the gas distribution disc, a first gas distribution part and / or a second gas distribution part for the outer ring gas to pass through are arranged on the heat insulation plate, the gas outlet direction of the first gas distribution part is towards the outer cavity wall of the outer ring gas cavity, and the gas outlet direction of the second gas distribution part is upwards or towards the circumferential direction of the heat insulation plate; and the inner cup body is tightly pressed on the adjusting member by the heat insulation plate.

[0014] In some embodiments, the first gas distribution part comprises a plurality of first gas distribution channels, all of the first gas distribution channels are arranged along the circumferential direction of the heat insulation plate, and the gas outlet direction of each of the first gas distribution channels is towards the outer cavity wall of the outer ring gas cavity; and the second gas distribution part comprises a plurality of second gas distribution channels, all of the second gas distribution channels are arranged along the circumferential direction of the heat insulation plate, and the gas outlet direction of each of the second gas distribution channels is towards the circumferential direction of the heat insulation plate.

[0015] In some embodiments, a boss is arranged on the outer sidewall of the inner cup body and extends outwards, and the radially inner side of the bottom of the heat insulation plate abuts against the top of the boss.

[0016] In some embodiments, a guide plate extending along the outer cavity wall of the outer ring air cavity is integrally formed at the outer edge of the heat insulation plate, and the upper end of the guide plate abuts or is connected to the outer cavity wall of the outer ring air cavity.

[0017] According to the above-mentioned infrared burner, the following technical solutions are adopted:

[0018] An infrared burner comprises a combustion body assembly as described above, and a burner head arranged at the bottom of the combustion body assembly and having an inner gas mixing chamber and an outer gas mixing chamber which are open upward, the outer gas mixing chamber being in communication with the outer ring air cavity, and the inner gas mixing chamber being in communication with the inner ring air cavity.

[0019] Compared with the prior art, the present application has at least the following advantages:

[0020] 1. The combustion body assembly of the present application can realize floating adjustment of the height of the inner cup body by adding an adjusting member between the gas distribution disc and the inner cup body, so as to ensure that the inner and outer ring air cavities do not have air leakage phenomenon, thereby enabling stable combustion of small fire without extinguishing, and solving the problem that the inner cup body is too high and the interference amount is too large, which easily causes deformation or separation of the top of the combustion plate;

[0021] 2. By arranging the heat insulation plate in the outer ring air cavity, the uniformity of the distribution of the outer ring gas on the entire combustion plate is improved, and the heat radiated downward by the combustion plate is better reduced, thereby improving the thermal efficiency of the burner;

[0022] 3. By pressing the inner cup body downward by the heat insulation plate, the adjusting member is pressed on the support portion of the gas distribution disc, thereby improving the stability and reliability of the adjusting member, and ensuring that the adjusting member will not be loosened or deformed due to inversion or shaking during transportation. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is an exploded view of the combustion body assembly in Example 1 of the present application;

[0024] Figure 2 is a sectional view of the combustion body assembly in Example 1 of the present application;

[0025] Figure 3 is a partial sectional view of the combustion body assembly in Example 2 of the present application;

[0026] Figure 4 is a partial sectional view of the combustion body assembly in Example 3 of the present application;

[0027] Figure 5 is a partial sectional view of another combustion body assembly in Example 3 of the present application;

[0028] Figure 6 is an exploded view of the combustion body assembly in Example 4 of the present application;

[0029] Figure 7 is a structural schematic diagram of the combustion body assembly in the embodiment 4 of the present application;

[0030] Figure 8 is a sectional view of the combustion body assembly in the embodiment 4 of the present application;

[0031] Figure 9 is an exploded view of the combustion body assembly in the embodiment 5 of the present application.

[0032] In the figure: 1-gas distribution disc, 10-central through hole, 11-gas distribution cavity, 111-inner ring gas cavity, 112-outer ring gas cavity, 121-support ring, 122-inner positioning ring, 131-inner ring gas inlet, 132-outer ring gas inlet, 14-outer positioning ring; 2-inner cup body, 21-flange edge, 22- boss; 3-adjusting member, 31-gasket, 311-annular clamping groove, 312-deformable cavity, 313-mounting groove, 32-upper elastic member, 33-lower elastic member; 4-combustion plate; 5-heat insulation plate, 511-first gas distribution channel, 512-second gas distribution channel, 52-flow guide disc; 6-burner head, 611-inner gas mixing chamber, 612-outer gas mixing chamber. DETAILED DESCRIPTION

[0033] The following examples are used to illustrate the present application, but the present application is not limited by these examples. Modifications to the specific embodiments of the present application or equivalent replacements to some technical features without departing from the spirit of the present application should be covered in the technical solution range claimed by the present application.

[0034] Embodiment 1

[0035] Reference Figures 1-2 , the present embodiment provides a combustion body assembly applied in an infrared burner, which comprises a gas distribution disc 1, an inner cup body 2, an adjusting member 3 and a combustion plate 4. The gas distribution disc 1 has a central through hole 10 and a gas distribution cavity 11 with an upward opening, the gas distribution cavity 11 is located at the periphery of the central through hole 10, a support portion and an outer positioning ring 14 located at the periphery of the support portion are arranged at the bottom of the gas distribution cavity 11, the support portion is used to support the adjusting member 3 and the inner cup body 2. An inner gas inlet portion and an outer gas inlet portion are arranged at the bottom of the gas distribution cavity 11, the inner gas inlet portion is located between the support portion and the central through hole 10 and is used to supply inner ring gas, the inner gas inlet portion is composed of a plurality of inner ring gas inlets 131 arranged in a circumferential direction at intervals; the outer gas inlet portion is arranged between the support portion and the outer positioning ring 14 and is used to supply outer ring gas, the outer gas inlet portion is composed of a plurality of outer ring gas inlets 132 arranged in a circumferential direction at intervals.

[0036] The inner cup body 2 is arranged in the gas distribution cavity 11 and located at the top of the support part. The inner cup body 2 separates the gas distribution cavity 11 into an inner ring gas cavity 111 and an outer ring gas cavity 112. The outer ring gas cavity 112 is in communication with the outer gas inlet part, and the inner ring gas cavity 111 is in communication with the inner gas inlet part. The combustion plate 4 is arranged in the gas distribution cavity 11 and fixedly connected to the gas distribution disc 1. The combustion plate 4 covers the top openings of the inner ring gas cavity 111 and the outer ring gas cavity 112.

[0037] The adjusting part 3 is arranged between the inner cup body 2 and the support part, and is used to adjust the height of the inner cup body 2, so that the upper end of the inner cup body 2 tightly abuts the lower surface of the combustion plate 4, and the lower end tightly abuts the support part through the adjusting part 3. Thus, the gas leakage phenomenon of the inner and outer ring gas cavities is prevented, the problem of gas leakage of the inner and outer ring gas cavities caused by the production height difference of the combustion plate 4, the inner cup body 2 or the gas distribution disc 1 is improved, the small fire is stably burned without extinguishing, and the problem of deformation or separation of the top of the combustion plate 4 caused by the too high height and too large interference of the inner cup body 2 is solved.

[0038] Further, the support part includes a support ring 121 and an inner positioning ring 122. The support ring 121 is integrally bent outward in the radial direction from the lower end of the inner positioning ring 122 and is used to support the inner cup body 2. The top of the inner positioning ring 122 is lower than the top of the outer positioning ring 14, and is used to limit the inner cup body 2 to prevent the inner cup body 2 from moving in the radial direction.

[0039] Further, the adjusting part 3 includes a gasket 31. The gasket 31 is preferably a high-temperature-resistant gasket, and more preferably a ceramic fiber gasket. The gasket 31 is arranged on the top of the support ring 121 and sleeved on the outer side of the inner positioning ring 122. An outwardly extending flange 21 is integrally formed on the lower end of the outer side wall of the inner cup body 2. The flange 21 tightly presses the gasket 31 on the support ring 121 to increase the contact area and reduce the pressure borne by the gasket 31, thereby improving the service life of the gasket 31. Thus, the height of the inner cup body 2 can be adjusted in the vertical direction by the gasket 31, so that the top of the inner cup body 2 is always tightly attached to the lower surface of the combustion plate 4.

[0040] It is particularly noted that a first sealing lip extending towards the inner positioning ring 122 can be integrally formed on the inner side wall of the gasket 31. The first sealing lip is configured to abut the outer side wall or the top of the inner positioning ring 122. Of course, a second sealing lip extending downward can also be arranged on the bottom of the gasket 31. The second sealing lip abuts the top of the support ring 121 to improve the air tightness between the gasket 31 and the support ring 121.

[0041] In addition, the combustion body assembly can further include a high-temperature-resistant sealing piece clamped between the upper end of the inner cup body 2 and the lower surface of the combustion plate 4, so that the body 2 and the combustion plate 4 change from rigid contact to soft contact, which is beneficial to further improve the air tightness between the inner cup body 2 and the combustion plate 4 and improve the problem of air leakage between the inner and outer ring air cavities caused by the height difference of the combustion plate 4. The high-temperature-resistant sealing piece and / or the gasket 31 can be integrally formed with the inner cup body 2.

[0042] Embodiment 2

[0043] Reference Figure 3 The difference between the present embodiment and Embodiment 1 is that the structure of the gasket 31 is different. In the present embodiment, an annular clamping groove 311 recessed downward is arranged at the position corresponding to the flange edge 21 on the top of the gasket 31, the flange edge 21 is inserted into the annular clamping groove 311 from top to bottom and is in interference fit with the opposite two groove walls of the annular clamping groove 311, and the inner cup body 2 tightly presses the inner groove wall on the radially inner side of the annular clamping groove 311 against the inner positioning ring 122. Thus, by the cooperation of the flange edge 21 of the inner cup body 2 and the annular clamping groove 311 of the gasket 31, the lower end of the inner cup body 2 can be positioned, the displacement of the inner cup body 2 relative to the gasket 31 can be prevented, and at the same time, multiple sealing layers can be formed between the inner cup body 2 and the support portion of the gas distribution disc 1, further improving the sealing effect between the lower end of the inner cup body 2 and the gas distribution disc 1.

[0044] Further, a deformable cavity 312 located below the flange edge 21 is arranged inside the gasket 31, and by the deformable cavity 312, the deformable space of the gasket 31 is further increased, so that the floating adjustment range of the height of the inner cup body 2 is larger and the adaptability is wider.

[0045] It is particularly pointed out that the deformable cavity 312 or the annular clamping groove 311 in the gasket 31 can be omitted. When the annular clamping groove 311 is omitted, at least one positioning structure can be additionally arranged between the gasket 31 and the flange edge 21 to achieve predetermined positioning. The positioning structure includes a positioning column and a positioning hole in cooperation with each other, the positioning column extending upward is integrally formed on the top of the gasket 31, and the positioning hole is arranged at the position corresponding to the positioning column on the flange edge 21 and is sleeved outside the positioning column.

[0046] Embodiment 3

[0047] The difference between the present embodiment and Embodiment 1 is that the structure of the adjusting piece 3 is different. The structure of the adjusting piece 3 includes but is not limited to any one of the following:

[0048] The first kind, referring to Figure 4, the adjusting member 3 comprises a gasket 31 and an upper elastic member 32, the gasket 31 is arranged between the flange edge 21 of the inner cup body 2 and the support part of the gas distribution disc 1, and an annular clamping groove 311 is arranged at the top of the gasket 31 and corresponds to the position of the flange edge 21, the flange edge 21 is inserted into the annular clamping groove 311 from top to bottom and is in interference fit with the opposite groove walls of the annular clamping groove 311. A plurality of upper elastic members 32 are arranged in the annular clamping groove 311 and are below the flange edge 21, and each upper elastic member 32 is tightly pressed on the groove bottom surface of the annular clamping groove 311 by the flange edge 21 of the inner cup body 2. Further, the upper elastic member 32 is a spring or a snake-shaped elastic piece, and the snake-shaped elastic piece can be integrally extended downward from the local bottom of the inner cup body 2 and then bent to form.

[0049] The second kind, referring to Figure 5 , the adjusting member 3 comprises a gasket 31 and a lower elastic member 33, the gasket 31 is clamped between the flange edge 21 of the inner cup body 2 and the support part of the gas distribution disc 1, a plurality of installation grooves 313 are arranged on the gasket 31 and are spaced apart in the circumferential direction, and a lower elastic member 33 is embedded in each installation groove 313, and the lower elastic member 33 is preferably a spring or an elastic piece, and the upper and lower ends thereof are respectively in abutment with the groove top surface of the installation groove 313 and the top of the support ring 121. Of course, an annular clamping groove suitable for accommodating the flange edge 21 of the inner cup body 2 can also be additionally arranged at the top of the gasket 31, and the flange edge 21 of the inner cup body 2 is inserted into the annular clamping groove from top to bottom and is in interference fit with the gasket.

[0050] It can be seen that, through the cooperation of the gasket 31 and the plurality of upper elastic members 32 (or lower elastic members 33), the ability of the adjusting member 3 to adjust the height of the inner cup body 2 in the vertical direction is further improved, so that the top of the inner cup body 2 is always tightly attached to the lower surface of the combustion plate 4, and the bottom is tightly attached to the support ring 121 of the support part through the gasket 31, thereby solving the problem that the inner and outer ring gas cavities are gassed and the inner cup body is too high and the interference amount is too large, which easily causes the top of the combustion plate to be deformed or to be separated from the welding.

[0051] Embodiment 4

[0052] Referring to Figures 6-8 The difference between the present embodiment and embodiments 1-3 is that the combustion body assembly further comprises a heat insulation plate 5, the heat insulation plate 5 is arranged in the outer ring gas cavity 112 and is fixedly connected to the top of the outer positioning ring 14 of the gas distribution disc 1, and the heat insulation plate 5 and the outer positioning ring 14 of the gas distribution disc 1 can be fixedly connected by welding or other means. After the heat insulation plate 5 is fixedly connected to the gas distribution disc 1, the inner cup body 2 is tightly pressed on the adjusting member 3 by the radially inner side of the heat insulation plate 5, so that the heat insulation plate 5 presses the inner cup body 2 downward, and the inner cup body 2 presses the adjusting member 3 on the support part of the gas distribution disc 1, thereby improving the stability and reliability of the adjusting member 3 and the inner cup body 2. Even if the combustion body assembly is inclined, inverted or shaken during assembly and transportation, the deformation, fracture or falling off of the adjusting member 3 caused by this can also be prevented.

[0053] In the present embodiment, the first gas distribution part and the second gas distribution part are arranged on the heat insulation plate 5, and the first gas distribution part is located at the periphery of the second gas distribution part. The gas outlet direction of the first gas distribution part is towards the outer cavity wall of the outer ring gas cavity 112, and the gas outlet direction of the second gas distribution part is towards the circumferential direction of the heat insulation plate 5. In this way, the outer ring gas from the burner head is more evenly distributed to each area of the combustion plate 3, and the uniformity of the distribution of the outer ring gas on the entire combustion plate is improved. At the same time, the heat insulation plate 5 can better reduce the downward radiation of heat from the combustion plate 3, and the thermal efficiency of the burner is improved. In other embodiments, the second gas distribution part can be replaced by the first gas distribution part, or the first gas distribution part can be replaced by the second gas distribution part.

[0054] Reference Figure 7 The first gas distribution part includes a plurality of first gas distribution channels 511, and all the first gas distribution channels 511 are arranged in the circumferential direction of the heat insulation plate 5. The gas outlet direction of each first gas distribution channel 511 is towards the outer cavity wall of the outer ring gas cavity 112. In the present embodiment, five hollow protrusions extending upwards are integrally formed on the side of the heat insulation plate 5 close to the outer positioning ring 14. Each hollow protrusion is integrally formed by upward stamping of a part of the heat insulation plate 5. A lateral gas outlet is formed on the outer side of each hollow protrusion in the radial direction, and the gas outlet direction of the lateral gas outlet is towards the outer cavity wall of the outer ring gas cavity 112. The first gas distribution channel 511 is formed by the hollow protrusion. It can be seen that the arrangement of the hollow protrusion plays a role in guiding and distributing gas, and can prevent the combustion plate 3 from directly radiating heat downward, thereby reducing heat loss.

[0055] The second gas distribution part includes a plurality of second gas distribution channels 512, and all the second gas distribution channels 512 are arranged in the circumferential direction of the heat insulation plate 5. The gas outlet direction of each second gas distribution channel 512 is upwards or towards the circumferential direction of the heat insulation plate 5. In the present embodiment, the second gas distribution channel 512 includes a hole for the outer ring gas to pass through, and the gas outlet direction of the hole is upwards. In addition, the second gas distribution channel 512 further includes a gas guiding part 513. The gas guiding part 513 is arranged at the rear end of the hole in the circumferential direction (for example, in the clockwise direction in the present embodiment) and is inclined in the vertical direction. The gas guiding part 513 is used to make the outer ring gas flowing into it outlet towards the circumferential direction of the heat insulation plate 5, and is also used to prevent the combustion plate 3 from directly radiating heat downward, thereby reducing heat loss.

[0056] When the outer ring gas flows upwards through the heat insulation plate 5, a part of the outer ring gas is directly transmitted upwards from the hole of the second gas distribution channel 512, another part of the outer ring gas is transmitted in the clockwise direction under the guiding action of the gas guiding part 513, and still another part of the outer ring gas flows out from the first gas distribution channel 511 towards the radial outer side. In this way, the outer ring gas quickly fills the outer ring gas cavity 112 from three dimensions, and the uniformity of the distribution of the outer ring gas on the entire combustion plate 4 is improved.

[0057] Reference Figures 7-8Further, a guide disc 52 extending along the outer cavity wall of the outer ring gas cavity 112 is integrally formed on the outer edge of the heat insulation plate 5, the upper end of the guide disc 52 abuts or connects with the outer cavity wall of the outer ring gas cavity 112, for guiding the outer ring gas flowing therethrough to the radial outer side of the combustion plate 4, and also for the heat insulation effect, preventing the combustion heat from radiating outward to the outer side wall of the gas distribution disc 1, effectively reducing the heat loss. In the embodiment, the guide disc 52 extends to the outermost upper end of the outer ring gas cavity 112, so as to better reduce the heat radiated downward by the combustion plate 3, and improve the thermal efficiency of the burner.

[0058] Reference Figures 6-8 Further, a boss 22 extending outward and located above the flange edge 21 is arranged on the outer side wall of the inner cup body 2, the boss 22 is used for strengthening the strength of the inner cup body 2, and also for reliably supporting the heat insulation plate 5. In the embodiment, the boss 22 is integrally formed outward by the partial side wall of the inner cup body 2, and the boss 22 can be annular or composed of at least one protrusion. The radial inner side of the bottom of the heat insulation plate 5 abuts the top of the boss 22, so that when the heat insulation plate 5 is fixedly connected to the gas distribution disc 12, the inner side structure of the heat insulation plate 5 is pressed on the boss 22 of the inner cup body 2, so that the inner cup body 2 cannot shake in the combustion body assembly to cause the deformation, fracture or falling off of the gasket 31.

[0059] Embodiment 5

[0060] Reference Figure 9 The embodiment provides an infrared burner, which is a split type infrared burner with large load and high efficiency, comprising a burner head 6 and a combustion body assembly as described in embodiment 4. The burner head 6 is arranged at the bottom of the combustion body assembly, and the burner head 6 has an inner gas mixing chamber 611 and an outer gas mixing chamber 612 which are open upward, the outer gas mixing chamber 612 is connected with the outer ring gas cavity 112 through an outer gas inlet part, and the inner gas mixing chamber 611 is connected with the inner ring gas cavity 111 through an inner gas inlet part.

[0061] It can be seen that through the above combustion body assembly, the thermal load of the burner can be increased, the gas distribution uniformity of the burner can be improved, the gas combustion can be sufficient, and the surface temperature of the combustion plate can be more uniform, so that the large load and high efficiency requirements of the user on the infrared burner are met.

[0062] The above only describes some embodiments of the present application. Those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A combustion element assembly, characterized in that, include: The air distribution plate (1) has an upward-opening air distribution chamber (11), and a support is provided at the bottom of the air distribution chamber (11); The gas distribution plate (1) has a central through hole (10), and an inner air intake and an outer air intake are provided at the bottom of the gas distribution chamber (11). The inner air intake is located between the support and the central through hole (10) and is used to allow the inner ring gas to pass through. The inner cup (2) is disposed on the support and divides the gas distribution chamber (11) into an inner ring gas chamber (111) and an outer ring gas chamber (112). A combustion plate (4) is disposed within the gas distribution chamber (11) and covers the top openings of the inner annular gas chamber (111) and the outer annular gas chamber (112); and An adjusting member (3) is disposed between the inner cup (2) and the support portion to adjust the height of the inner cup (2) so that the upper end of the inner cup (2) is in close contact with the lower surface of the combustion plate (4), and the lower end is in close contact with the support portion through the adjusting member (3). The support part includes a support ring (121) and an inner positioning ring (122); the adjusting part (3) includes a washer (31), the washer (31) is disposed on the top of the support ring (121) and fitted outside the inner positioning ring (122), and an outwardly extending flange edge (21) is integrally formed at the lower end of the outer side wall of the inner cup body (2), the flange edge (21) presses the washer (31) tightly onto the support ring (121).

2. The combustion element assembly according to claim 1, characterized in that, The inner wall of the washer (31) is provided with a first sealing lip extending toward the inner positioning ring (122), the first sealing lip abutting against the outer wall or top of the inner positioning ring (122); and / or the bottom of the washer (31) is provided with a downwardly extending second sealing lip, the second sealing lip abutting against the top of the support ring (121).

3. A combustion element assembly according to claim 1, characterized in that, The gasket (31) is provided with an annular groove (311) opening toward the flange edge (21), the flange edge (21) is inserted into the annular groove (311) from top to bottom and is interference-fitted with the two opposite groove walls of the annular groove (311); and / or a deformable cavity (312) is provided inside the gasket (31) located below the flange edge (21).

4. A combustion element assembly according to claim 3, characterized in that, The adjusting member (3) also includes an upper elastic member (32). Multiple upper elastic members (32) are circumferentially spaced in the annular groove (311). The flange edge (21) of the inner cup body (2) presses each upper elastic member (32) tightly against the bottom surface of the annular groove (311).

5. A combustion element assembly according to claim 1, characterized in that, The adjusting member (3) also includes a lower elastic member (33). The washer (31) is provided with a plurality of downward-opening mounting grooves (313) at circumferential intervals. The lower elastic member (33) is embedded in each mounting groove (313). The upper and lower ends of the lower elastic member abut against the top surface of the mounting groove (313) and the support ring, respectively.

6. A combustion element assembly according to claim 1, characterized in that, A high-temperature resistant seal is provided between the inner cup body (2) and the combustion plate (4).

7. A combustion body assembly according to any one of claims 1-6, characterized in that, It also includes a heat insulation plate (5), which is disposed in the outer ring gas cavity (112) and fixedly connected to the gas distribution plate (1). The heat insulation plate (5) is provided with a first gas distribution section and / or a second gas distribution section for the outer ring gas to pass through. The gas outlet direction of the first gas distribution section is towards the outer wall of the outer ring gas cavity (112), and the gas outlet direction of the second gas distribution section is upward or towards the circumferential direction of the heat insulation plate (5). The inner cup (2) is pressed tightly against the adjusting member (3) by the heat insulation plate (5).

8. A combustion element assembly according to claim 7, characterized in that, The first gas distribution section includes a plurality of first gas distribution channels (511), all of which are arranged at intervals along the circumferential direction of the heat insulation plate (5), and the gas outlet direction of each first gas distribution channel (511) is toward the outer wall of the outer ring gas cavity (112). The second air distribution section includes a plurality of second air distribution channels (512), all of which are arranged at intervals along the circumferential direction of the heat insulation plate (5), and the air outlet direction of each second air distribution channel (512) is toward the circumferential direction of the heat insulation plate (5).

9. A combustion element assembly according to claim 7, characterized in that, The outer side wall of the inner cup (2) is provided with an outwardly extending boss (22), and the radial inner side of the bottom of the heat insulation plate (5) abuts against the top of the boss (22).

10. A combustion element assembly according to claim 7, characterized in that, A guide plate (52) extending along the outer wall of the outer annular air cavity (112) is integrally formed on the outer edge of the heat insulation plate (5). The upper end of the guide plate (52) abuts against or connects to the outer wall of the outer annular air cavity (112).

11. An infrared burner, characterized in that, include: A combustion body assembly as described in any one of claims 1-10; and The burner head (6) is located at the bottom of the combustion body assembly and has an inner mixing chamber (611) and an outer mixing chamber (612) with an upward opening. The outer mixing chamber (612) is connected to the outer annular gas chamber (112), and the inner mixing chamber (611) is connected to the inner annular gas chamber (111).

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