JPH09329307A - Burner and cooker employing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the burning property of a combustion board by a method wherein a first part having no flame port is formed of a part surrounded by a belt type flame port unit provided around the outer periphery of the combustion board and a second part having no flame port is provided between a part of the belt type flame port unit and the outer periphery of the combustion board while the second part having no flame port and a part of the belt type flame port unit are covered by a covering plate. SOLUTION: A first part having no flame port 5 is provided at a part of a ceramic combustion board 3, which is surrounded by an outer peripheral belt type flame port unit 4, and pushed-out flame port units 6 formed by pushing a part of the belt type flame port unit 4 toward the center of the surface of the ceramic combustion board 3, are formed while second parts 7 having no flame port are provided between a pair of opposed pushed-out flame port units 6 and the outer peripheral ends approximated to the pushed-out flame port units 6. Further, the second parts 7 having no flame port are covered by a covering plate 8 consisting of heat resistant metal having a constitution coping with the shape of the second parts 7 to collide the stream of combustion gas in the row of flame ports near the outer periphery of the pushed-out flame port units 6, which is readily becoming the most unstable combustion, against the peripheral ends of the covering plates 8 and burn it again at the stabilized combustion part of the pushed-out flame port units 6. According to this method, the wide range of changing of amount of combustion can be secured.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a burner for baking and a cooker using the burner.

[0002]

2. Description of the Related Art A conventional burner and a cooker using the same will be described below.

As shown in FIG. 8, a burner body 81 is provided with a ceramic combustion plate 83 provided with a plurality of penetrating flame ports 82, and heat resistance is applied to the entire periphery of the ceramic combustion plate 83 and the flameless port region. There is a burner provided with a heating plate 84 made of a conductive metal (for example, Japanese Utility Model Laid-Open No. 1-136241).

In this structure, the temperature of the peripheral edge of the flameless opening area of the ceramic combustion board 83 is kept higher to ensure the combustibility, but the heating plate 84 is flameless in the outer peripheral edge portion and the center. Since two types are provided in the mouth portion, the structure is complicated and the cost is high, and the radiant heat radiated from the flameless mouth region in the center of the ceramic combustion plate 83 is shielded by the heating plate 84. However, there is a drawback that the heat loss is large.

[0005]

In the conventional structure as described above, in order to secure the combustibility, the structure of the burner main body 81 is complicated, and a plurality of kinds of heating plates 84 are installed to increase the cost. However, there is a problem of thermal loss in that the heating plate 84 shields the radiant heat from the flameless mouth region which should be originally radiated.

The present invention solves the above-mentioned problems of the conventional example, and not only improves the combustibility of the combustion plate to reduce unburned components such as carbon monoxide to secure a wide variable range of the combustion amount. The first purpose is to provide a burner that secures a uniform and efficient radiation distribution, and the second purpose is to provide a cooker that can obtain good cooking results by using the burner as a cooking burner. It is intended.

[0007]

In order to achieve the above first object, the present invention provides a combustion disc having a flame port, a burner case for housing the combustion disc, and a coating for covering a part of the combustion disc. It has a plate, a band-shaped flame opening is provided on the outer periphery of the combustion plate, and the portion surrounded by the band-shaped flame opening is the first flameless opening, and a part between the band-shaped flame opening and the outer periphery of the combustion plate. A second flameless mouth portion is provided, and a part of the second flameless mouth portion and the band-shaped flame mouth portion is covered with the cover plate to form a combustion promoting means.

Therefore, the burner of the present invention can easily realize the combustion with less emission of carbon monoxide by the combustion promoting means.

As a combustion promoting means, a peripheral edge of the cover plate is formed along the vicinity of the boundary between the second flameless mouth portion and the belt-like flame mouth portion, and the peripheral edge of the cover plate is a part of the belt-like flame mouth portion. The structure that covers the flame mouth of the above suppresses the lift phenomenon of the flame formed at the flame mouth at the peripheral end of the belt-like flame mouth, and at the same time, returns the unburned gas to the stable combustion part of the belt-like flame mouth. Therefore, the re-combustion of the unburned gas can be promoted, so that the combustion with less emission of carbon monoxide can be easily realized.

As a combustion promoting means, a gap is provided between the cover plate and the second flameless opening, and the vicinity of the boundary between the belt-like flame opening and the second flameless opening is provided from the peripheral end side of the combustion plate. In addition, the structure in which the cover plate is inclined so that the distance of the gap is reduced not only stabilizes combustion by suppressing the lift phenomenon of the flame at the peripheral end portion of the band-shaped flame mouth portion. The heat dissipation from the cover plate to the combustion plate is suppressed by the voids, and the combustion failure due to cooling can be prevented even if the combustion gas comes into contact with the cover plate, so that combustion with less emission of carbon monoxide can be easily realized. Is. Similarly, by providing the voids, the thermal strain of the entire cover plate can be reduced and the cover plate can be prevented from being deformed. Further, the peripheral edge portion of the cover plate where the distance of the void is the minimum serves as a holding structure for preventing the combustion plate from falling when the combustion surface of the combustion plate faces downward.

As the combustion promoting means, the flame diameter of the flame opening located at the boundary between the second flameless opening and the band-shaped opening is
The configuration in which the flame diameter of the other flame mouth of the band-shaped flame mouth portion is made larger than that of the large-diameter flame mouth not only increases the amount of fuel but also decreases the flow velocity, so that the flame lift phenomenon occurs. Since the temperature can be suppressed and the temperature can be raised at the same time, combustion with less emission of carbon monoxide can be easily realized.

Further, as the combustion promoting means, the one in which the infrared radiation coating is provided on the surface of the cover plate which does not face the second non-flame opening part not only promotes stable combustion by the cover plate but also In addition to improving the corrosion resistance of the plate itself, radiant heat is radiated from the infrared radiation coating film that has been heated similarly to the coated plate, so that a wider radiation distribution can be obtained.

As the combustion promoting means, the one in which the mixed film containing the infrared radiating material and the oxidation catalyst is provided on the surface of the cover plate which does not face the second non-flame opening part, promotes the same stable combustion. In addition to improving the corrosion resistance of the cover plate itself, it is possible to decompose a wide range of radiation by the infrared radiation material and further decompose unburned components and smoke by the oxidation catalyst.

In order to achieve the second object, the present invention has a constitution having a firing chamber provided with the burner and a main body containing the firing chamber therein, and while ensuring a uniform radiation distribution. Not only is the generation of carbon monoxide suppressed,
A wide range of strength and squeezing is possible, so it is possible to realize a cooker that can handle a wide variety of cooking menus.

A structure having a baking cabinet having the burner at the upper part and a lower heating means at the lower part and a main body internally containing the baking chamber secures a uniform radiation distribution. However, it achieves stable combustion and enables quick cooking as a double-sided cooker.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 has a combustion plate having a flame outlet, a burner case for housing the combustion plate, and a cover plate for covering a part of the combustion plate. A band-shaped flame opening is provided on the outer periphery of the belt, and the portion surrounded by the band-shaped flame opening is the first flame-free opening.The second flame-free opening is provided between a part of the band-shaped flame opening and the outer periphery of the combustion plate. And a part of the second flameless mouth portion and the band-shaped flame mouth portion is covered with a cover plate to form a combustion promoting means.

According to the above invention, since the combustion promoting means is provided, it is possible to easily realize the combustion in which the emission of carbon monoxide is small.

Further, as in the invention according to claim 2, as the combustion promoting means, the peripheral edge of the cover plate is formed along the vicinity of the boundary between the second flameless mouth part and the band-like flame mouth part, and the cover plate is formed. With the configuration that the peripheral edge of the belt covers a part of the flame opening of the band-shaped flame opening, the lift phenomenon of the flame formed at the flame opening at the peripheral edge of the band-shaped flame opening is suppressed, and at the same time unburned. Since the gas can be returned to the stable combustion part of the band-shaped flame mouth, the re-combustion of unburned gas can be promoted, and the combustion with less emission of carbon monoxide can be realized.
A wide range of variable combustion amount can be secured.

Further, as in the invention according to claim 3, as the combustion promoting means, a gap is provided between the cover plate and the second flameless opening portion, and the band-like flame opening portion is provided from the peripheral end side of the combustion plate. And the second flameless mouth portion near the boundary, the structure in which the cover plate is inclined so that the distance of the void is reduced, similarly, the lift phenomenon of the flame at the peripheral end portion of the band-shaped flame mouth portion. Not only to stabilize the combustion by suppressing the heat dissipation from the cover plate to the combustion plate by the gap, but also to prevent the combustion failure due to cooling even if the combustion gas comes into contact with the cover plate Combustion with less carbon emission can be easily realized.
Further, the peripheral edge portion of the cover plate where the distance of the void is the minimum serves as a holding structure for preventing the combustion plate from falling when the combustion surface of the combustion plate faces downward.

Further, as in the invention according to claim 4, in the burner according to claim 1, as a combustion promoting means, a burner opening located at the boundary between the second flameless opening portion and the band-shaped flame opening portion is formed. The configuration in which the flame diameter is made larger than the flame diameters of the other flame mouths of the band-shaped flame mouth portion not only increases the fuel amount from the large-diameter flame mouth but also reduces the flow velocity, and Since the lift phenomenon can be suppressed and the temperature can be raised at the same time, combustion with less emission of carbon monoxide can be easily realized, and a wide combustion amount variable range can be secured.

Further, as in the invention according to claim 5, in the burner according to claims 2 to 4, as a combustion promoting means, an infrared radiation coating is provided on the surface of the cover plate which does not face the second flameless opening. The one provided can secure the combustibility at the flame opening near the second flameless opening, and the heat of combustion at the band-shaped flame opening is efficiently transferred to the coating plate, and the infrared radiation coating of the coating plate is provided. Radiant heat is also generated, which compensates for the decrease in the radiant area due to the presence of the second flameless opening, and while maintaining a wide and uniform radiant distribution, it is possible to secure a wide range of combustion amount variation and at the same time the corrosion resistance of the coated plate. Is improved.

Further, as in the invention according to claim 6, in the burner according to claims 2 to 4, as a combustion promoting means, an infrared radiation material and a material are provided on the surface of the cover plate which does not face the second flameless opening. With the mixed coating containing the oxidation catalyst, it is possible to secure combustibility at the flame opening near the second flameless opening, and not only radiant heat is generated from the mixed coating on the coated plate, but also unburned. Since the components and oil smoke can be further decomposed by the oxidation catalyst, a wide and uniform radiation distribution can be obtained, a clean and wide range of combustion amount can be secured, and the corrosion resistance of the coated plate is improved.

Further, as in the invention according to claim 7, in the burner according to claims 1 to 7, the combustion plate is made of aluminum oxide, silicon oxide, chromium oxide, iron oxide, magnesium oxide, calcium oxide, titanium oxide, A ceramic composed of at least one substance selected from the group consisting of zirconium oxide, silicon carbide, and silicon nitride is a highly durable burner having a high infrared emissivity.

Further, the invention according to claim 8 has a structure in which the burner having the burner according to any one of claims 1 to 7 is provided on the upper portion and the main body including the burner therein. Not only the generation of carbon monoxide is suppressed while securing the distribution, but also a wide range of strength and weakness is possible,
It is possible to realize cooking capable of coping with various kinds of cooking menus. In the invention according to claim 9, the burner according to any one of claims 1 to 7 is provided in the upper portion, and the lower heating portion is provided in the lower portion. Since it has a calcination chamber provided with a means and a main body that contains the calcination chamber inside, it not only suppresses the generation of carbon monoxide while ensuring a uniform radiation distribution, but also enables a wide range of strength and weakness. Therefore, as a double-sided grill cooker, it is possible to support a wide variety of cooking menus and achieve quick cooking.

(First Embodiment) A first embodiment of the burner of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1, in the burner, two identical ceramic plates having a plurality of penetrating flame openings 2 are housed in combination in a burner case 1 to form a substantially rectangular ceramic combustion board 3. Then, the band-shaped flame opening portion 4 is provided on the outer periphery of the ceramic combustion board 3, the first flameless opening portion 5 is provided in the portion surrounded by the band-shaped flame opening portion 4, and the inner portion of the band-shaped flame opening portion 4 is
Protruding flame mouth 6 toward the center of the surface of the ceramic burner 3
And at least a pair of opposing protruding flame mouth portions 6,
The second flameless opening 7 is provided between the adjacent outer peripheral edge. The second flameless opening portion 7 is covered with a cover plate 8 made of a heat-resistant metal having a configuration corresponding to the shape, and extends along the vicinity of the boundary between the second flameless opening portion 7 and the protruding flame opening portion 6. To form a peripheral edge of the cover plate 8, and the peripheral edge portion covers a part (for example, one row) of the flame outlet row of the protruding flame outlet portion 6.

As described above, according to the first embodiment, the gradual radiant heat is radiated from the first flameless opening portion 5, and the second flameless opening portion 7 is immediately below the protruding flame opening portion 6. In order to prevent the high temperature region from being bipolarized, it is possible to reach radiant heat up to the central part, while the cooling effect causes the flame to lift and the most likely unstable combustion. 6, the combustion gas flow in the line of flames near the outer peripheral portion of the cover plate 8
As a result, the lift is suppressed, and as a result, the lift is suppressed, and at the same time, re-combustion can be performed in the stable combustion portion of the protruding flame mouth portion 6, and a wide combustion amount variable range can be secured.

(Second Embodiment) A second embodiment of the burner of the present invention will be described below.

As shown in FIG. 2, in the burner, the second flameless opening portion 7 of the ceramic combustion disc 3 shown in the first embodiment is covered with a covering plate 9 corresponding to the shape thereof with a constant space 10, The ceramic burner plate 3 squeezes out from the peripheral end side to reach the vicinity of the boundary between the flame opening portion 6 and the second flameless opening portion 7, and the void 1
This is a configuration in which the cover plate 9 is inclined so that the distance of 0 decreases.

As described above, according to the second embodiment, as in the first embodiment, the radiant heat can be reached to the central portion of the ceramic combustion platen 3, and on the other hand, the protruding flame mouth portion that is most likely to become unstable combustion. The combustion gas flow at the flame mouth near the outer peripheral part of 6
Collide with the peripheral edge of the cover plate 8 to suppress the lift,
At the same time, it is possible to re-burn in the stable combustion part of the protruding flame mouth part 6 and to secure a wide combustion amount variable range, and the peripheral edge of the cover plate 9 where the distance of the void 10 is the minimum is the combustion surface of the ceramic combustion plate 3. Is a holding structure for preventing the ceramic burner board 3 from falling when it is directed downward.

(Third Embodiment) A third embodiment of the burner of the present invention will be described below.

As shown in FIG. 3, the burner has a flame nozzle array 11 located at the boundary between the second flameless nozzle portion 7 and the protruding flame nozzle portion 6 of the ceramic combustion board 3 shown in the second embodiment. The flame caliber,
The configuration is made larger than the flame diameters of the other flame mouths of the band-shaped flame mouth portion 4. Not only the amount of fuel from the flame port array 11 increases, but also the flow velocity is further reduced by colliding with the covering plate 9, the lift phenomenon of the flame is suppressed, and at the same time, the temperature can be increased, so that carbon monoxide Combustion with low emissions can be easily realized, and a wide range of combustion amount variable can be secured.

As described above, according to the third embodiment, as in the second embodiment, the radiant heat can reach the central portion of the ceramic combustion platen 13, while the amount of fuel from the flame port array 11 increases. In addition to colliding with the covering plate 9, the flow velocity further decreases, the lift phenomenon of the flame is suppressed, and at the same time, the temperature can be raised, so that combustion with less emission of carbon monoxide can be easily realized and a wide range of combustion can be achieved. A variable range can be secured.

(Fourth Embodiment) A fourth embodiment of the burner of the present invention will be described below.

As shown in FIG. 4, the burner has a shape in which a part of the second flameless mouth portion 7 of the ceramic burner 3 and the protruding flame outlet portion 6 of the ceramic burner 3 according to the second embodiment are shaped. The coating is performed by a corresponding cover plate 12, and the infrared radiation coating 13 is provided on the surface of the cover plate 12 that does not face the second flameless opening 7.

As described above, according to the fifth embodiment, as in the first embodiment, the radiant heat can reach the central portion of the ceramic combustion platen 3, and the flame outlet near the outer peripheral portion of the protruding flame outlet portion 6 can be obtained. Since the heat of combustion in the squeezing flame mouth 6 is transmitted to the cover plate 12 and the radiant heat is also generated from the infrared radiation coating 13 of the cover plate 12, a wide and uniform radiation distribution can be obtained. While obtaining, a wide range of combustion amount variable can be secured.

(Embodiment 5) Embodiment 5 of the burner of the present invention will be described below.

As shown in FIG. 5, the burner has a shape in which part of the second flameless mouth portion 7 of the ceramic burner 3 and the protruding flame outlet portion 6 of the ceramic burner 3 according to the first embodiment are formed. The infrared radiating material 15 and the oxidation catalyst 1 are coated on the surface covered with the corresponding cover plate 14 and do not face the second flameless opening portion 7 of the cover plate 14.
This is a configuration in which a mixed film 17 containing 6 is provided.

As described above, according to the fourth embodiment, as in the second embodiment, radiant heat can be reached to the central portion of the ceramic combustion platen 3, and at the flame outlet near the outer peripheral portion of the protruding flame outlet portion 6. The combustion heat of the squeeze-out flame mouth portion 6 is transmitted to the covering plate 14, and not only radiant heat is generated from the mixed film 17 of the covering plate 14, but also unburned components are further oxidized. Since it can be decomposed by the catalyst 16, it is possible to secure a wide combustion amount variable range while obtaining a clean, wide and uniform radiation distribution.

(Embodiment 6) A cooker of Embodiment 6 using the burner of the present invention will be described below.

As shown in FIG. 6, the cooker 18 includes a main body 1
A baking chamber 20 is provided in the container 9, and the example 4 is provided above the baking chamber 20.
The burner 21 shown in is installed as a cooking burner.

As described above, according to the sixth embodiment, the burner 21 emits radiant heat from the infrared radiation coating 13 of the covering plate 12 which has been heated to a high temperature by the combustion heat.
Not only the wide range of variable combustion amount of 1 but also the uniform and wide range of radiation distribution can be secured, so a wide range of strength and weakness can be obtained. Therefore, it is possible to adjust the heat power to seasonal changes such as fish and support various kinds of cooking menus. This makes it possible to realize a cooking device that is easy for the user to use.

(Embodiment 7) A cooker of Embodiment 7 using the burner of the present invention will be described below.

As shown in FIG. 7, the cooker 22 includes a main body 2
3 is provided with a baking cabinet 24, the burner 25 shown in the fifth embodiment is installed as a cooking burner on the upper part of the baking cabinet 24, and Bunsen burners are provided on both left and right sides of the lower part of the baking cabinet 24 through a grill net 26. This is a configuration in which the lower heating means 27 is provided.

As described above, according to the seventh embodiment, since the burner 25 has the mixed coating 17 containing the infrared radiation material 15 and the oxidation catalyst 16 on the cover plate 14, the burner 2 can be used.
In addition to the wide range of combustion amount variable of 5, it is possible to secure a uniform and wide range of radiation distribution, so a wide range of strength and weakness can be used as a burner for cooking of a double-sided cooker. Supports a wide variety of cooking menus and enables quick cooking. Further, oily smoke and the like generated by the burning of the juice from the food to be cooked (not shown) in the vicinity of the lower heating means 27 is decomposed by coming into contact with the oxidation catalyst 16 contained in the mixed film 17 to produce smoke. The amount emitted to the outside air can be reduced. Therefore, it is possible to realize a clean cooker which can be cooked in a short time and is easy to use.

[0046]

As is apparent from the above description, according to the present invention, the following effects can be obtained.

(1) A band-shaped flame port is provided on the outer periphery of the combustion plate,
The portion surrounded by the zonal flame mouth portion is the first flameless mouth portion, and the second flameless mouth portion is provided between a part of the zonal flame mouth portion and the outer periphery of the combustion plate. Portion and a part of the band-shaped flame opening part is covered with a covering plate, and the peripheral edge of the covering plate is formed along the vicinity of the boundary between the second flameless opening part and the band-shaped flame opening part. When a structure that covers a part of the zonal flame opening is provided, the lift phenomenon of the flame formed at the rim of the zonal flame opening is suppressed, and the vicinity of the outer periphery of the zonal opening Since the combustion gas flow can be reburned, a wide combustion amount variable range can be secured while obtaining a uniform radiation distribution.

(2) A constant gap is provided to cover a part of the second flameless opening and the band-shaped flame opening with a coating plate, and the band-shaped flame opening and the second flame-shaped opening are provided from the peripheral end side of the combustion plate. When the cover plate is inclined so as to reach the vicinity of the boundary of the flameless opening and the distance of the void decreases, not only does combustion stabilize, but also the heat from the cover plate to the combustion plate is generated by the void. Emissions are suppressed, and even if the combustion gas comes into contact with the cover plate, it is possible to easily realize combustion with less carbon monoxide emission.In addition, the peripheral edge of the cover plate with the minimum gap distance is The holding structure prevents the combustion board from falling when the surface faces downward.

(3) A part of the second flameless mouth portion and the band-shaped flame mouth portion is covered with a covering plate, and the flame mouth located at the boundary between the second flameless mouth portion and the belt-like flame mouth portion is covered. When the flame diameter is set to be larger than the flame diameters of the other flame mouths of the band-shaped flame mouth, the flow velocity also decreases at the large-diameter flame mouth, and the lift phenomenon of the flame is suppressed and the temperature can be increased at the same time. Therefore, combustion with less emission of carbon monoxide can be easily realized, and a wide combustion amount variable range can be secured.

(4) When the infrared radiation coating is provided on the surface of the cover plate that does not face the second flameless mouth, the combustibility at the flame mouth near the outer periphery of the belt-like flame mouth can be maintained, and the cover board Since the radiant heat is also generated from the infrared radiative coating, a wide and uniform radiation distribution can be obtained, a wide range of combustion amount can be secured, and the corrosion resistance of the coated plate can be improved.

(5) In the case where a mixed coating containing an infrared radiation material and an oxidation catalyst is provided on the surface of the coated plate that does not face the second flameless opening, the flame is formed at the flame opening near the outer periphery of the band-shaped flame opening. Combustibility can be maintained, radiant heat is generated from the mixed film of the coated plate, and unburned components and oil fumes can be further decomposed by the oxidation catalyst, so a wide and uniform radiation distribution can be obtained while a wide and uniform radiation distribution is obtained. Variable range and cleanliness can be secured.

(6) When the burner of the present invention is provided in the upper part of the firing chamber, not only the generation of carbon monoxide is suppressed while ensuring a uniform radiation distribution, but also a wide range of strength and weakness can be drawn, so that many kinds of burners can be used. It is possible to realize a cooker that can support the cooking menu of.

(7) When the burner of the present invention is provided in the upper part of the baking oven and the lower heating means is provided in the lower part of the baking oven, a wide range of strength and weakness can be obtained as a burner for cooking in a double-sided cooker, enabling quick cooking, Moreover, since the amount of smoke can be reduced, it is possible to realize a clean cooker that is easy for the user to use.

[Brief description of drawings]

FIG. 1A is a front view of a burner according to a first embodiment of the present invention, and FIG. 1B is a sectional view of a main part of the burner.

FIG. 2A is a front view of a burner according to a second embodiment of the present invention. FIG. 2B is a sectional view of a main part of the burner.

FIG. 3A is a front view of a burner according to a third embodiment of the present invention, and FIG. 3B is a cross-sectional view of a main part of the burner.

FIG. 4A is a front view of a burner according to a fourth embodiment of the present invention. FIG. 4B is a cross-sectional view of a main part of the burner.

FIG. 5A is a front view of a burner according to a fifth embodiment of the present invention, and FIG. 5B is a cross-sectional view of a main part of the burner.

FIG. 6 is a sectional view showing the concept of the configuration of a cooker according to a sixth embodiment of the present invention.

FIG. 7 is a sectional view showing the concept of the configuration of another cooker according to the seventh embodiment of the present invention.

FIG. 8 is a schematic front view of a conventional burner.

[Explanation of symbols]

 1 Burner Case 2 Flame Mouth 3 Ceramic Combustion Plate 4 Strip Flame Mouth 5 First Flameless Mouth 6 Outgoing Flame Mouth 7 Second Flameless Mouth 8, 9, 12, 14 Coated Plate (Combustion Promoting Means ) 10 voids 11 flame row 13 infrared radiation coating 15 infrared radiation material 16 oxidation catalyst 17 mixed coating 18, 22 cooker 19, 23 main body 20, 24 baking chamber 26 grilling net 27 lower heating means

Claims (9)

[Claims] 1. A combustion disc having a flame port, a burner case for housing the combustion disc, and a cover plate for covering a part of the combustion disc, wherein a band-shaped flame port portion is provided on the outer circumference of the combustion disc, The portion surrounded by the flame mouth portion is the first flameless mouth portion, a second flameless mouth portion is provided between a part of the belt-like flame mouth portion and the outer periphery of the combustion plate, and the second by the covering plate. A burner in which combustion promoting means is configured by covering a part of the flameless mouth and a part of the band-like flame. 2. The burner according to claim 1, wherein the combustion promoting means forms a peripheral edge of the cover plate along a vicinity of a boundary between the second flameless mouth portion and the band-like flame mouth portion, A burner whose end covers part of the flame opening of the band-shaped flame opening. 3. The burner according to claim 1, wherein the combustion promoting means is provided with a gap between the cover plate and the second flameless opening,
A burner in which a cover plate is inclined so as to reach the vicinity of the boundary between the strip-shaped flame opening portion and the second flameless opening portion from the peripheral end side of the combustion plate and to reduce the distance of the gap. 4. The burner according to claim 1, wherein the combustion promoting means sets the flame diameter of the flame opening located at the boundary between the second flameless opening portion and the band-shaped flame opening portion to the other of the band-shaped flame opening portion. A burner that is larger than the flame diameter of the flame mouth. 5. The burner according to any one of claims 2 to 4, wherein the combustion promoting means is provided with an infrared radiation coating on a surface of the cover plate which does not face the second flameless opening. 6. The burner according to claim 2, wherein the combustion promoting means includes an infrared radiation material and an oxidation catalyst on a surface of the cover plate that does not face the second flameless opening. Burner with coating. 7. A combustion board comprising aluminum oxide, silicon oxide,
8. A ceramic containing at least one substance selected from the group consisting of chromium oxide, iron oxide, magnesium oxide, calcium oxide, titanium oxide, zirconium oxide, silicon carbide and silicon nitride as a component. Burner according to the paragraph. 8. A cooker comprising a baking cabinet provided with the burner according to claim 1 at an upper portion thereof, and a main body including the baking cabinet therein. 9. Cooking having a burner having the burner according to any one of claims 1 to 7 on an upper part and a lower heating means on a lower part, and a main body including the burner inside. vessel.