CN214172222U - High-efficient low infrared burner who discharges - Google Patents

Abstract

The utility model discloses a high-efficient low infrared burner who discharges, including the furnace end that has the premixing chamber, the branch gas dish that has the branch gas chamber, combustion plate, thermal-insulated structure and gather hot dish, the furnace end with divide the gas dish to connect and make premixing chamber with divide the gas chamber intercommunication, the combustion plate covers divide the top of gas chamber, thermal-insulated structure set up in premixing chamber with divide between the gas chamber be equipped with a plurality of holes on the thermal-insulated structure, the both ends in hole communicate respectively premixing chamber with divide the gas chamber, gather hot dish set up in divide the periphery of gas dish. The infrared burner of the utility model can obstruct the heat radiation at the lower side of the burning plate to the furnace end, effectively reduce the temperature rise of the furnace end, reduce the heat loss of the burning plate and improve the heat efficiency of the burning plate; on the other hand, the full combustion of fuel gas is realized, the heat efficiency is further improved, and therefore the emission of CO in tail gas is obviously reduced.

Description

High-efficient low infrared burner who discharges

Technical Field

The utility model relates to a cooking utensils technical field especially relates to a high-efficient infrared burner who hangs down emission.

Background

Infrared cookers are popular in the market because of their better heating uniformity when cooking, their lower CO emissions in the exhaust, and their higher thermal efficiency. The heat transfer mode of infrared kitchen uses the heat radiation to give first place to, and combustion plate upper surface burning temperature is nearly 1000 ℃, and heat radiation is directly proportional with the fourth power of temperature, and although the combustion plate downside temperature is less than the combustion plate upper surface mutually, the combustion plate downside has also radiated more heat to furnace end inside, leads to the furnace end temperature rise higher, has lost more heat to infrared kitchen thermal efficiency's promotion has been restricted.

Disclosure of Invention

The utility model aims at solving one of the problems existing in the prior related art to at least a certain extent, therefore, the utility model provides a high-efficiency low-emission infrared burner which can obstruct the heat radiation at the lower side of a combustion plate to a furnace end, effectively reduce the temperature rise of the furnace end, reduce the heat loss of the combustion plate and improve the heat efficiency of the combustion plate; on the other hand, the full combustion of fuel gas is realized, the heat efficiency is further improved, and therefore the emission of CO in tail gas is obviously reduced.

According to the high-efficiency low-emission infrared combustor, the technical scheme is as follows:

the utility model provides a high-efficient low infrared burner who discharges, includes furnace end, gas distribution dish and combustion plate, the furnace end is equipped with mixes the chamber in advance, the gas distribution dish has a gas distribution chamber, the furnace end with the gas distribution dish is connected and is made mix the chamber in advance with the gas distribution chamber intercommunication, the combustion plate set up in on the gas distribution dish and cover the top of gas distribution chamber, wherein still include: the heat insulation structure is arranged between the premixing cavity and the gas distribution cavity, a plurality of pores are formed in the heat insulation structure, and two ends of each pore are respectively communicated with the premixing cavity and the gas distribution cavity; gather hot dish, gather hot dish set up in the periphery of minute gas dish, just gather the up end of hot dish and be higher than the up end of combustion plate.

In some embodiments, the aperture is a small hole that is inclined in a vertical direction.

In some embodiments, a heat insulation part is provided at the upper end or/and the lower end of the aperture, and the heat insulation part is used for blocking heat on the lower side of the combustion plate from radiating to the interior of the furnace end.

In some embodiments, the heat insulation portion is a reflective plate, one side of the reflective plate is fixedly connected to the heat insulation structure, and the other side of the reflective plate extends obliquely upward or obliquely downward.

In some embodiments, the reflective plate is formed by bending the thermal insulation structure after being partially cut and stamped and bent obliquely upwards or obliquely downwards, and the gap between the reflective plate and the thermal insulation structure forms the aperture.

In some embodiments, the heat insulation structure is disposed at a bottom of the gas distribution plate and is integrally formed with the gas distribution plate.

In some embodiments, the premix chamber comprises an inner ring premix chamber and an outer ring premix chamber, and the air distribution chamber comprises an inner air distribution chamber communicated with the inner ring premix chamber and an outer air distribution chamber communicated with the outer ring premix chamber; the heat insulation structure comprises an inner ring partition plate and/or an outer ring partition plate, the inner ring partition plate and the outer ring partition plate are both provided with the holes, the inner ring partition plate is arranged between the inner gas distribution cavity and the inner ring premixing cavity, and the outer ring partition plate is arranged between the outer gas distribution cavity and the outer ring premixing cavity.

In some embodiments, a gap H is left between the radially inner side of the heat collecting plate and the outer side wall of the air distribution plate, and the gap H is used for secondary air to pass through.

In some embodiments, the heat collecting plate is integrally formed with the air distribution plate.

In some embodiments, the pan support is arranged at the periphery of the air distribution plate, and the heat collection plate is arranged on the pan support and is integrally formed with the pan support.

Compared with the prior art, the utility model discloses an at least including following beneficial effect:

1. the utility model discloses an infrared burner through add the thermal-insulated structure that has the hole, has realized effectively stopping burning board downside radiation to the most heat of furnace end, has reduced the temperature rise of furnace end and infrared kitchen drain pan inside, does benefit to the life of other components and parts in the extension infrared kitchen drain pan, can also reduce the calorific loss of burning board simultaneously, promotes infrared burner's thermal efficiency;

3. the heat collecting disc is arranged on the periphery of the gas distributing disc, so that the range of a high-temperature flue gas area is enlarged, the temperature of the high-temperature flue gas area can be effectively increased, the gas is combusted more fully, the heat efficiency is further improved, and the emission of CO in combustion tail gas is obviously reduced.

Drawings

FIG. 1 is an exploded view of an infrared burner according to embodiment 1 of the present invention;

fig. 2 is a schematic structural view of the air distributing plate in embodiment 1 of the present invention;

FIG. 3 is a sectional view of an infrared burner according to embodiment 1 of the present invention, in which a heat collecting plate and a pot support are hidden;

fig. 4 is a sectional view of an infrared burner according to embodiment 1 of the present invention.

Detailed Description

The present invention is illustrated by the following examples, but the present invention is not limited to these examples. To the embodiment of the present invention, modify or replace some technical features, without departing from the spirit of the present invention, it should be covered in the technical solution scope of the present invention.

The embodiment of the utility model provides an infrared burner is split type infrared burner, and split type infrared burner indicates the combustor that has furnace end and gas tray to be different from the infrared burner that does not have the gas tray structure. The gas distribution disc is detachably arranged above the furnace end, so that the gas distribution disc can be conveniently detached from the furnace end when the combustor is cleaned or maintained.

Example 1

As shown in fig. 1-4, the present embodiment provides a high-efficiency low-emission infrared burner, which includes a burner head 1, a combustion plate 2, a heat insulation structure 3, a gas distribution plate 4 and a heat collection plate 6, wherein the burner head 1 is provided with a premixing chamber 10, the gas distribution plate 4 is provided with a gas distribution chamber 42, the burner head 1 and the gas distribution plate 4 are connected to communicate the premixing chamber 10 with the gas distribution chamber 42, and the combustion plate 2 is disposed on the gas distribution plate 4 and covers the gas distribution chamber 42. Thermal-insulated structure 3 sets up in mixing in advance between chamber 10 and the minute gas chamber 42, is equipped with the hole 31 that a plurality of air supplies flows to pass through on thermal-insulated structure 3, and the both ends of hole 31 communicate respectively and mix in advance chamber 10 and minute gas chamber 42, and like this, through thermal-insulated structure 3, realized the most heat radiation of separation burner plate 2 downside to furnace end 1, reduce the inside temperature rise of furnace end 1, do benefit to the calorific loss that reduces 2 downside of burner plate simultaneously, promote infrared burner's thermal efficiency. Gather hot dish 6 and set up in the periphery of minute gas dish 4, and the up end of gathering hot dish 6 is higher than the up end of burner plate 2, thus, because gather the region that hot dish 6 surrounds bigger, make the regional scope of high temperature flue gas wider, can effectively promote the regional temperature of high temperature flue gas, it is more abundant to make the gas burning, further thermal efficiency is improved, thereby show the emission that reduces CO in the burning tail gas, and then solved because of thermal-insulated structure 3's setting, make the mixed gas follow the resistance increase of the branch air cavity 42 of furnace end 1's premixing chamber 10 inflow minute gas dish 4, cause the problem that the CO emission exceeds standard in the burning tail gas.

It is thus clear that the infrared burner of this embodiment has the thermal-insulated structure 3 in hole 31 through addding, has realized that effective separation 2 downside of burner plate radiate to the most heat of furnace end 1, has reduced the inside temperature rise of furnace end 1 and infrared kitchen drain pan, does benefit to the life of the inside other components and parts of extension infrared kitchen drain pan, can also reduce the calorific loss of burner plate 2 simultaneously, promotes infrared burner's thermal efficiency. In addition, the heat collecting disc 6 is arranged on the periphery of the gas distributing disc 4, so that on one hand, the range of a high-temperature flue gas area is enlarged, the temperature of the high-temperature flue gas area can be effectively increased, and the gas can be combusted more fully, so that the emission of CO in the combusted tail gas is remarkably reduced, and the problem that the emission of CO in the tail gas exceeds the standard due to the arrangement of the heat insulation structure 3 is solved; on the other hand, the heat is gathered at the bottom of the boiler, and the heat convection between the high-temperature flue gas and the bottom of the boiler is enhanced, so that the heat efficiency of the burner is further improved.

Specifically, the furnace end 1 is further provided with a lower central hole 11, an upper central hole 42 is formed in the center of the gas distribution disc 4, when the gas distribution disc 4 is connected with the furnace end 1, the upper central hole 42 is communicated with the lower central hole 11, the lower central hole 11 and the upper central hole 41 mutually form a central through hole, the central through hole is used for installing a fire needle, and can also be used for supplementing secondary air to the radial inner side of the combustion plate 2, so that the combustion sufficiency is further improved, and the content of CO in combustion tail gas is further reduced.

In this embodiment, the premix chamber 10 includes an inner ring premix chamber 101 and an outer ring premix chamber 102, the inner ring premix chamber 101 is disposed on the periphery of the lower center hole 11, and the outer ring premix chamber 102 is disposed on the periphery of the inner ring premix chamber 101. Correspondingly, the air distribution chamber 42 comprises an inner air distribution chamber 421 communicated with the inner ring premixing cavity 101 and an outer air distribution chamber 422 communicated with the outer ring premixing cavity 102. The combustion plate 2 is detachably mounted in the gas distribution disc 4 and covers the upper portions of the inner gas distribution cavity 421 and the outer gas distribution cavity 422, so that the combustion plate 2 is provided with an inner ring fire area and an outer ring fire area, the infrared combustor is provided with inner ring fire and outer ring fire, a user can adjust the fire according to cooking requirements, and meanwhile, the user can detach the combustion plate 2 for cleaning.

Referring to fig. 2, preferably, the heat insulating structure 3 may be an independent component, which is not integrally formed with the gas distribution plate 4, so that the respective processing and forming of the gas distribution plate 4 of the heat insulating structure 3 are more convenient and simpler; thermal-insulated structure 3 can also be integrated in the bottom of gas distribution dish 4 and with gas distribution dish 4 integrated into one piece, like this, when realizing blockking 2 downside heats vertical downward radiation to the effect of furnace end 1 of combustion plate, has reduced the assembly process of spare part and corresponding spare part, does benefit to reduction in manufacturing cost.

Referring to fig. 2-3, the present embodiment takes the heat insulation structure 3 as an example, which is integrally formed at the bottom of the air distribution plate 4. The heat insulation structure 3 includes an inner ring partition 301 and an outer ring partition 302, wherein the inner ring partition 301 constitutes a bottom of the inner gas distribution chamber 421, and the outer ring partition 302 constitutes a bottom of a radially inner side of the outer gas distribution chamber 422. All be provided with a plurality of holes 31 along the even interval arrangement of circumferential direction on inner ring baffle 301 and outer ring baffle 302, like this, make inner ring premix chamber 101 pass through inner ring baffle 301 intercommunication internal air cavity 421, outer ring premix chamber 102 passes through outer air cavity 422 of outer ring baffle 302 intercommunication, can make things convenient for the gas mixture of air and gas to pass through, promote the unit air input, can play the effect of even air current again, make the gas mixture that transmits to 2 downside of burner plate distribute more evenly and the velocity of flow is roughly the same, guarantee that the infrared burner heats more evenly, the thermal efficiency is promoted.

Preferably, be equipped with thermal-insulated portion 32 in the upper end of every hole 31 or/and lower extreme, thermal-insulated portion 32 is used for the heat radiation of separation combustion plate 2 downside to furnace end 1 inside, thus, through addding thermal-insulated portion 32, avoided the heat of combustion plate 2 downside to radiate through the hole 31 is direct vertical downwards to furnace end 1 inside on the one hand, effectively reduce furnace end 1 and the inside temperature rise of infrared kitchen drain pan, on the other hand makes the gas mixture of air and gas follow furnace end 1 and upwards transmit and flow through when thermal-insulated portion 32 its flow direction take place to bend, change and prolonged the transmission path of gas mixture, it is more even to make gas and air have more sufficient time to mix, make the burning more abundant, further promote the thermal efficiency.

In the present embodiment, the heat insulating portion 32 is provided at the upper end of the aperture 31. Preferably, the heat insulation part 32 is a reflection plate, which is positioned on the inner ring partition 301, the lower side of the reflection plate is fixedly connected with the inner ring partition 301, and the upper side of the reflection plate extends obliquely upward; the lower side of the reflector plate on the outer ring partition 302 is fixedly connected with the outer ring partition 302, and the upper side of the reflector plate extends obliquely upward. From this, the contained angle between the reflecting plate that is located on inner ring baffle 301 and the inner ring baffle 301 top surface is the acute angle, the contained angle that is located between the reflecting plate on outer ring baffle 302 and the outer ring baffle 302 top surface is the acute angle, thereby make thermal-insulated portion 32 (being the reflecting plate) be the shutter structure, make the mist flow out hole 31 along the direction of non-perpendicular to the horizontal plane, effectively prevent the heat of 2 downside of burning board directly through the perpendicular downward radiation of hole 31 to furnace end 1 of hole 31, reduce furnace end 1 temperature rise, can play the water conservancy diversion effect to the mist simultaneously, the guide gas flows along the route of hole 31, change and prolonged the transmission route of mist.

More preferably, the reflection plate on the inner ring partition 301 is formed integrally with the inner ring partition 301 by partially press-cutting the inner ring partition 301 and then bending the same obliquely upward, and the gap between the reflection plate on the inner ring partition 301 and the inner ring partition 301 forms the aperture 31. The reflective plate on the outer ring partition 302 is formed integrally with the outer ring partition 302, and is formed by bending the outer ring partition 302 obliquely upward after being partially cut by punching, and the gap between the reflective plate on the outer ring partition 302 and the outer ring partition 302 forms the aperture 31. Therefore, the rapid machining and forming of the holes 31 and the heat insulation parts 32 are facilitated, the production efficiency is improved, the manufacturing cost is reduced, and meanwhile, the material waste can be avoided.

In this embodiment, all the reflection plates on the inner ring partition 301 are inclined toward the clockwise direction, and all the reflection plates on the outer ring partition 302 are inclined toward the counterclockwise direction, so that the disturbance of the gas flowing out from the adjacent apertures 31 can be avoided.

Further, referring to fig. 1 and 3 to 4, a partitioning member 5 having an annular structure is provided in the gas distribution disk 4, and the lower end of the partitioning member 5 abuts against the region of the bottom of the gas distribution disk 4 between the inner ring partition 301 and the outer ring partition 302, and the upper end abuts against the bottom surface of the combustion plate 2, thereby partitioning the gas distribution chamber 42 into an inner gas distribution chamber 421 and an outer gas distribution chamber 422 which are independent of each other. Therefore, the gas distribution disc 4 and the gas distribution disc 4 are designed in a split mode, the gas distribution cavity 42 is divided into the inner gas distribution cavity 421 and the outer gas distribution cavity 422 through the partition 5, machining and manufacturing of the gas distribution disc 4 and the partition 5 are simpler, and machining and manufacturing difficulty is reduced. In this embodiment, the partition 5 is an inner cup.

Referring to fig. 2-3, specifically, support platforms 43 are disposed at the upper ends of two opposite side walls of the gas distribution chamber 42, the combustion plate 2 is installed in the gas distribution chamber 42, the inner side and the outer side of the bottom of the combustion plate are respectively abutted against the support platforms 43, and the middle of the bottom of the combustion plate 2 is abutted against the partition 5, so that the combustion plate 2 is stably and reliably installed inside the gas distribution plate 4. In addition, the top surface inboard and the 4 inside wall up end parallel and level of gas distribution dish of burner plate 2, the top surface outside and 4 outside wall up end parallel and level of gas distribution dish, like this, can prevent that burner plate 2 from taking place to stick up the limit in long-term use.

Referring to fig. 4, preferably, a gap H is left between the radially inner side of the heat collecting plate 6 and the outer side wall of the air distribution plate 4, and the gap H is used for secondary air to pass through. When the infrared burner works, the secondary air is supplied to a high-temperature area from a low-temperature area through a gap H, so that sufficient secondary air is supplied to the outer side of the combustion plate 2, the combustion of the outer ring fire is more sufficient, the heat efficiency is improved, the CO emission in the tail gas is obviously reduced, the standard of the CO emission of the infrared burner is ensured, and the problem that the CO emission in the tail gas exceeds the standard due to the arrangement of the heat insulation structure 3 is effectively solved.

Referring to fig. 1 and 4, further, the boiler comprises a boiler support 7, the boiler support 7 is arranged on the periphery of the gas distribution plate 4, and the heat collection plate 6 is arranged on the boiler support 7 and is integrally formed with the boiler support 7. Therefore, the pot support 7 and the heat collecting plate 6 are integrally formed, so that the pot support 7 has the functions of supporting a pot and connecting the heat collecting plate 6, the heat collecting plate 6 is stably and reliably arranged on the periphery of the gas distribution plate 4, the manufacturing materials of the pot support 7 can be saved, and the manufacturing cost is reduced.

Specifically, the pan support 7 includes a support leg 71 and a support frame 72, the support leg 71 is integrally formed at the bottom of the heat collecting plate 6 and extends downward for abutting against the liquid containing plate of the infrared oven, and a space is left between the bottom surface of the heat collecting plate 6 and the liquid containing plate of the infrared oven for the secondary air to flow into the low temperature region. The supporting frame 72 is integrally formed at the top of the heat collecting plate 6 corresponding to the supporting leg 71 and extends upward for supporting the pot.

In this embodiment, the number of the supporting legs 71 and the number of the supporting frames 72 are four, four supporting legs 71 are uniformly arranged at the bottom of the heat collecting tray 6 at intervals along the circumferential direction, and four supporting frames 72 are uniformly arranged at the top of the heat collecting tray 6 at intervals and correspond to the corresponding supporting legs 71. Therefore, one supporting leg 71 and one supporting frame 72 form a pair, and the pan support 7 is ensured to stably support the pan through four pairs of supporting legs 71 and supporting frames 72, and the heat collecting plate 6 is divided into four parts with equal intervals.

Example 2

The infrared burner of the present embodiment is different from embodiment 1 in that: the structure of the insulation structure 3 is different. Specifically, apertures 31 are provided in both the inner ring partition 301 and the outer ring partition 302 for the passage of the gas flow. The present embodiment is provided with the heat insulating portion 32 only at the upper ends of the apertures 31 on the inner ring partition 301, or is provided with the heat insulating portion 32 only at the upper ends of the apertures 31 on the outer ring partition 302, and the rest is the same as embodiment 1.

Example 3

The infrared burner of the present embodiment is different from embodiment 1 in that: the heat insulation structure 3 and the air distribution plate 4 are of a split structure. Specifically, the heat insulation structure 3 includes an inner ring partition 301 and an outer ring partition 302 which are independent from each other, the inner ring partition 301 is installed in the inner air distribution chamber 421, the outer ring partition 302 is installed in the outer air distribution chamber 422, the inner ring partition 301 and the outer ring partition 302 are provided with the aperture 31 and the heat insulation portion 32 located at the upper end of the aperture 31, and the rest is the same as that of embodiment 1.

It can be seen that, the heat insulation structure 3 and the gas distribution plate 4 are designed to be split structures, so that the heat insulation structure 3 and the gas distribution plate 4 are more convenient and simpler to process.

Example 4

The infrared burner of the present embodiment is different from the infrared burner of embodiment 1 or 3 in that: the specific structure of the insulating structure 3 varies. Specifically, the thickness of the heat insulating structure 3 of the present embodiment is appropriately thickened, and the aperture 31 of the present embodiment is preferably a small hole inclined in the vertical direction while omitting the heat insulating portion 32 at the upper end of the aperture 31.

It can be seen that, through setting up the aperture 31 to the aperture structure of slope on vertical direction, when having realized reducing the heat that 2 downside of burning board radiated to furnace end 1, further accelerate the velocity of flow of gas mixture for when the gas mixture passes through the aperture fast, cool off the aperture lower extreme better, further reduce the temperature of aperture lower extreme and radiate to the heat of furnace end 1. In addition, the heat insulation part 32 at the upper end of the small hole is omitted, so that the structure of the heat insulation structure 3 is simpler, the processing and forming efficiency is higher, and the manufacturing cost is lower.

Example 5

The infrared burner of the present embodiment is different from the infrared burner of embodiment 1 or 2 or 3 or 4 in that: the heat collecting plate 6 has different mounting structures, and correspondingly, the pan support 7 has different structures. Specifically, gather the radial inboard of hot dish 6 and the lateral wall integrated into one piece of gas distribution dish 4 to be provided with a plurality of clearances H along the circumferential direction interval arrangement between gathering hot dish 6 and gas distribution dish 4, in order to supply secondary air to pass through, supply secondary air to outer ring fire, guarantee that outer ring fire burning is more abundant, the thermal efficiency is promoted, reduces CO emission in the tail gas. Correspondingly, the pot support 7 further comprises a connecting rib, the supporting leg 71 is fixedly connected with the supporting frame 72, and two adjacent supporting frames 7 are connected through the connecting rib.

It can be seen that the heat collecting plate 6 is fixedly installed by integrally forming the heat collecting plate 6 and the air distributing plate 4, and the heat collecting plate 6 is installed without the help of the pot bracket 7.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims (10)

1. The utility model provides a high-efficient low-emission infrared burner, includes furnace end (1), gas distribution dish (4) and combustion plate (2), furnace end (1) is equipped with mixes chamber (10) in advance, gas distribution dish (4) have gas distribution chamber (42), furnace end (1) with gas distribution dish (4) are connected and are made premix chamber (10) with gas distribution chamber (42) intercommunication, combustion plate (2) set up in gas distribution dish (4) and cover the top of gas distribution chamber (42), its characterized in that still includes:

the heat insulation structure (3) is arranged between the premixing cavity (10) and the air distribution cavity (42), a plurality of pores (31) are formed in the heat insulation structure (3), and two ends of each pore (31) are respectively communicated with the premixing cavity (10) and the air distribution cavity (42);

gather hot dish (6), gather hot dish (6) set up in the periphery of minute gas dish (4), just gather the up end of hot dish (6) and be higher than the up end of combustion plate (2).

2. A high efficiency low emission infrared burner as claimed in claim 1, wherein said apertures (31) are small holes inclined in the vertical direction.

3. A high efficiency low emission infrared burner according to claim 1, wherein a thermal insulation portion (32) is provided at the upper or/and lower end of the aperture (31), said thermal insulation portion (32) being used for blocking the heat radiation from the lower side of the combustion plate (2) to the inside of the burner head (1).

4. A high efficiency low emission infrared burner as defined in claim 3 wherein said thermal insulation (32) is a reflective plate, one side of said reflective plate being fixedly connected to said thermal insulation structure (3) and the other side extending obliquely upward or obliquely downward.

5. A high efficiency low emission infrared burner as defined in claim 4, wherein said reflecting plate is formed by bending a part of said heat insulating structure (3) after being cut and punched, obliquely upward or obliquely downward, and the gap between said reflecting plate and said heat insulating structure (3) constitutes said aperture (31).

6. A high efficiency low emission infrared burner as claimed in claim 5, wherein the heat insulating structure (3) is provided at the bottom of the gas distributor plate (4) and is formed integrally with the gas distributor plate (4).

7. A high efficiency low emission infrared burner according to any one of claims 1 to 6, wherein the premixing chamber (10) comprises an inner premixing chamber (101) and an outer premixing chamber (102), and the air-separating chamber (42) comprises an inner air-separating chamber (421) communicating with the inner premixing chamber (101) and an outer air-separating chamber (422) communicating with the outer premixing chamber (102); the heat insulation structure (3) comprises an inner ring partition plate (301) and/or an outer ring partition plate (302), the inner ring partition plate (301) and the outer ring partition plate (302) are respectively provided with the pore (31), the inner ring partition plate (301) is arranged between the inner air distribution cavity (421) and the inner ring premixing cavity (101), and the outer ring partition plate (302) is arranged between the outer air distribution cavity (422) and the outer ring premixing cavity (102).

8. A high efficiency low emission infrared burner according to claim 1, wherein a gap H is left between the radially inner side of the heat collecting plate (6) and the outer side wall of the gas distribution plate (4), said gap H being used for the passage of secondary air.

9. A high efficiency low emission infrared burner as claimed in claim 8 wherein the heat collecting plate (6) is formed integrally with the gas distributor plate (4).

10. A high efficiency low emission infrared burner as set forth in claim 8, characterized in that it further comprises a pan support (7), said pan support (7) being disposed at the periphery of said gas distribution plate (4), said heat collecting plate (6) being disposed on said pan support (7) and being integrally formed with said pan support (7).

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