JP3067644B2 - Burner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a burner for baking cooking.

[0002]

2. Description of the Related Art A conventional burner will be described below.

As shown in FIG. 8, a ceramic combustion plate 83 provided with a plurality of penetrating flame ports 82 is disposed in a burner main body 81, and heat resistance is provided on the entire periphery of the ceramic combustion plate 83 and the entire non-flame 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 configuration, the temperature of the periphery of the non-flame opening region of the ceramic combustion plate 83 is maintained at a higher temperature so as to secure the combustion property. Since two types are provided at the opening and the opening, not only the structure becomes complicated and the cost becomes high, but also the heating plate 84 shields the radiant heat radiated from the non-flame opening region at the center of the ceramic combustion plate 83. Therefore, there is a disadvantage that thermal loss is large.

[0005]

In the conventional structure as described above, the burner body 81 has a complicated structure and a plurality of types of heating plates 84 have to be installed to increase the cost in order to secure the combustibility. In addition, there is a problem of thermal loss such that the heating plate 84 blocks radiant heat from the non-flame port region that should be radiated.

The present invention solves the above-mentioned problems of the prior art. In addition to improving the combustibility of the combustion plate and reducing unburned components such as carbon monoxide, the present invention not only secures a wide variable combustion amount range. , it is an it that provides the burner to ensure uniform and efficient radiation distribution purposes.

[0007]

To achieve the above object, according to an aspect of the present invention provides a ceramic combustion plate having a flame outlet, ceramic
A burner casing for accommodating the click combustion machine having a covering plate which covers a portion of the ceramic combustion plate, a strip burner port portion is provided on the outer periphery of the ceramic combustion plate, a portion of belt flame mouth surrounds the first a flameless opening, the second flameless opening between the outer peripheral portion and the ceramic combustion plate of the strip flame mouth provided, second flameless opening
The second non-flame port and a part of the belt-shaped flame port are covered with the covering plate whose peripheral end is formed along the vicinity of the boundary between the belt-shaped flame port and the belt-shaped flame port, thereby providing combustion promoting means.

Therefore, in the burner of the present invention, the fire formed by the flame at the peripheral end of the band-shaped flame is formed by the combustion promoting means.
Suppresses the flame lift phenomenon and simultaneously releases unburned gas into the strip-shaped flame
Re-combustion of unburned gas
Easy to burn with less emission of carbon monoxide
It can be realized in

As a combustion promoting means, a gap is provided between the cover plate and the second non-flame port, and the vicinity of the boundary between the band-shaped flame port and the second non-flame port from the peripheral end of the combustion plate. In addition, the configuration in which the covering plate is inclined so as to reduce the distance of the gap, not only stabilizes combustion by similarly suppressing the lift phenomenon of the flame at the peripheral end of the band-shaped flame opening, but also The above-mentioned gap suppresses heat dissipation from the cover plate to the combustion plate, and prevents combustion failure due to cooling even when the combustion gas comes into contact with the cover plate, so that combustion with low carbon monoxide emission can be easily realized. It is. Similarly, by providing the void, the thermal strain of the entire cover plate can be reduced, and deformation of the cover plate can be prevented. Furthermore, the peripheral end of the cover plate where the distance of the air gap is the minimum is a holding structure for preventing the combustion plate from falling when the combustion surface of the combustion plate faces downward.

As a combustion promoting means, the flame diameter of the flame port located at the boundary between the second non-flame port and the band-shaped flame port is
In the configuration in which the flame diameter of the band-shaped flame port is larger than the flame diameter of the other flame ports, not only the fuel amount increases from the large-diameter flame port but also the flow velocity decreases, so that the flame lift phenomenon occurs. Since the temperature can be increased at the same time as the suppression, combustion with less emission of carbon monoxide can be easily realized.

[0011] As a means for promoting the combustion, a cover plate provided with an infrared radiation coating on a surface not facing the second non-flame port portion can not only promote stable combustion by the cover plate, but also provide a coating. In addition to the improvement of the corrosion resistance of the plate itself, radiant heat is radiated from the infrared radiation coating which has been heated in the same manner as the coated plate, so that a wider radiation distribution can be obtained.

[0012] As a means for promoting the combustion, a device in which a mixed film containing an infrared radiating material and an oxidation catalyst is provided on the surface of the cover plate not facing the second non-flame port portion can promote the same stable combustion, It is possible to decompose unburned components and smoke caused by the oxidation catalyst, as well as a wide radiation distribution by the infrared radiation material in addition to the improvement of the corrosion resistance of the coated plate itself.

[0013]

DETAILED DESCRIPTION OF THE INVENTION The invention according to claim 1 comprises a combustion plate provided with a flame port, a burner case accommodating the combustion plate, and a cover plate covering a part of the combustion plate. A band-shaped flame opening is provided on the outer periphery of the flame-shaped opening, and a portion surrounded by the band-shaped flame opening is defined as a first flame-free port, and a second flame-free port is provided between a part of the band-shaped flame opening and the outer periphery of the combustion plate. A second non-flame port and a zonal flame port
A portion of the second non-flame port portion and the band-shaped flame port portion is covered with a cover plate having a peripheral edge formed along the vicinity of the boundary with the boundary, thereby forming combustion promoting means.

According to the invention, as the combustion promoting means,
Cover plate along the vicinity of the boundary between the second non-flame port and the band-shaped flame port
The peripheral edge of the cover plate is a part of the flame
Since the configuration to cover the mouth is provided, the peripheral end of the
Suppresses the lift of the flame formed by the
The unburned gas can be recirculated to the stable combustion area
Reburning of unburned gas can be promoted,
Combustion with low emissions can be realized, and a wide range of variable combustion amount
Can be secured.

According to a third aspect of the present invention, a gap is provided between the cover plate and the second non-flame port as the combustion promoting means, and a band-shaped flame port is provided from the peripheral end side of the combustion plate. And a structure in which the covering plate is inclined so as to reach the vicinity of the boundary of the second flameless port and reduce the distance of the gap, similarly, the flame lift phenomenon of the peripheral end of the band-shaped flame port In addition to stabilizing the combustion by suppressing the heat, the air gap suppresses the heat dissipation from the cover plate to the combustion plate, and even if the combustion gas comes into contact with the cover plate, the combustion failure can be prevented. Combustion with low carbon emission can be easily realized.
Furthermore, the peripheral end of the cover plate where the distance of the air gap is the minimum is a holding structure for preventing the combustion plate from falling when the combustion surface of the combustion plate faces downward.

Further, according to the invention according to claim 4,
In addition, as a combustion promoting means, the flame diameter of the flame port located at the boundary between the second non-flame port and the band flame port is configured to be larger than the flame diameter of the other flame ports of the band flame port. In addition to the above, the large-diameter flame outlet not only increases the fuel amount but also reduces the flow velocity, so that the flame lift phenomenon can be suppressed and the temperature can be raised at the same time. Can be easily realized, and a wide combustion amount variable range can be secured.

Further, according to a fifth aspect of the present invention,
In addition, as a means for promoting combustion , those provided with an infrared radiation coating on the surface that does not face the second non-flame port of the cover plate can ensure flammability at the flame near the second non-flame port, Furthermore, the heat of combustion at the strip-shaped flame port is efficiently transmitted to the cover plate, and radiant heat is also generated from the infrared radiation coating of the cover plate, thereby compensating for a decrease in the radiation area due to the presence of the second non-flame port. In addition, a wide range of variable combustion amount can be secured while obtaining a wide and uniform radiation distribution, and at the same time, the corrosion resistance of the coated plate is improved.

Further, according to a sixth aspect of the present invention,
In addition, as a combustion promoting means, the coated plate provided with a mixed film containing an infrared emitting material and an oxidation catalyst on the surface not facing the second non-flame port is a flame port near the second non-flame port. Not only radiant heat is generated from the mixed film of the coated plate, but also unburned components and oily smoke can be further decomposed with an oxidation catalyst. In addition, a wide combustion amount variable range can be secured, and the corrosion resistance of the coated plate is improved.

(Embodiment 1) A burner according to Embodiment 1 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 ports 2 are housed in combination in a burner case 1 to form a substantially square ceramic combustion plate 3. Then, a band-shaped flame port 4 is provided on the outer periphery of the ceramic combustion plate 3, a first non-flame port 5 is provided in a portion surrounded by the band-shaped flame port 4, and a part of the band-shaped flame port 4 is
Protruding flame opening 6 toward the center of the surface of ceramic combustion plate 3
And at least a pair of opposing flaring flame openings 6;
A second non-flame port 7 is provided between the adjacent outer peripheral end. The second non-flame port 7 is covered with a cover plate 8 made of a heat-resistant metal having a configuration corresponding to the shape thereof, and extends along the vicinity of the boundary between the second non-flame port 7 and the protruding flame port 6. Thus, a peripheral end of the covering plate 8 is formed, and the peripheral end covers a part (for example, one line) of the flame port row of the protruding flame port 6.

As described above, according to the first embodiment, gentle radiant heat is radiated also from the first non-flame port 5, and the second non-flame port 7 is directly under the protruding flame port 6. In order to prevent the high temperature area from being polarized, the radiant heat can reach the central part, while the flame acts like a lift due to the cooling action, and the protruding flame mouth where the unstable combustion is most likely to occur The flow of the combustion gas in the flame row near the outer periphery of the
As a result, the lift can be suppressed, and at the same time, the fuel can be re-burned in the stable combustion portion of the flared flame opening 6, and a wide combustion amount variable range can be secured.

(Embodiment 2) A burner according to Embodiment 2 of the present invention will be described below.

As shown in FIG. 2, the burner coats the second non-flame port 7 of the ceramic combustion plate 3 shown in the first embodiment with a cover plate 9 corresponding to the shape of the burner with a certain gap 10, From the peripheral end side of the ceramic combustion plate 3, it approaches the boundary between the flame port 6 and the second non-flame port 7, and the space 1
This is a configuration provided with a configuration in which the cover plate 9 is inclined so that the distance of 0 is reduced.

As described above, according to the second embodiment, the radiant heat can reach the central portion of the ceramic combustion plate 3 as in the first embodiment. 6. Combustion gas flow at the flame outlet near the outer periphery of 6
Collision with the peripheral edge of the cover plate 8 suppresses lift as a result,
At the same time, re-combustion can be performed in the stable burning portion of the flaring flame opening 6, and not only a wide range of variable combustion amount can be ensured, but also the peripheral end of the cover plate 9 where the distance of the gap 10 is minimized is the combustion surface of the ceramic combustion plate 3. Is held downward to prevent the ceramic combustion plate 3 from falling.

Embodiment 3 Hereinafter, a third embodiment of the burner according to the present invention will be described.

As shown in FIG. 3, the burner is provided in the flame row 11 located at the boundary between the second non-flame port 7 and the protruding flame port 6 of the ceramic combustion plate 3 shown in the second embodiment. Flame caliber,
A configuration is provided in which the band-shaped flame opening 4 is larger than the diameter of the other flames. Not only does the fuel port row 11 increase the fuel amount, but also collides with the cladding plate 9 to further reduce the flow velocity, thereby suppressing the flame lift phenomenon and increasing the temperature. Combustion with low emissions can be easily realized, and a wide combustion amount variable range can be secured.

As described above, according to the third embodiment, the radiant heat can reach the central portion of the ceramic combustion plate 13 as in the second embodiment, while the fuel amount increases from the flame port array 11. In addition to the above, the flow velocity is further reduced by colliding with the cover plate 9 and the flame lift phenomenon is suppressed, and at the same time, the combustion can be performed at a high temperature. A variable amount range can be secured.

(Embodiment 4) A burner according to a fourth embodiment of the present invention will be described below.

As shown in FIG. 4, the burner has a shape in which the second non-flame port 7 and the part of the protruding flame port 6 of the protruding flame port 6 of the ceramic combustion plate 3 shown in the second embodiment have the same shape. This is a configuration in which an infrared radiation coating 13 is provided on a surface which is covered with a corresponding coating plate 12 and does not face the second non-flame port 7 of the coating plate 12.

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 plate 3, and the flame outlet near the outer peripheral portion of the protruding flame opening 6 can be obtained. Since the heat of combustion at the flared flame opening 6 is transmitted to the cover plate 12 and the radiant heat is also generated from the infrared radiation film 13 of the cover plate 12, a wide and uniform radiation distribution can be obtained. In addition, a wide combustion amount variable range can be secured.

(Embodiment 5) A burner according to a fifth embodiment of the present invention will be described below.

As shown in FIG. 5, the burner has a shape in which the second non-flame port 7 and the part of the protruding flame port 6 of the protruding flame port 6 of the ceramic combustion plate 3 shown in the first embodiment are partly formed. The infrared radiating material 15 and the oxidation catalyst 1 are coated on the surface of the coating plate 14 that is not opposed to the second flameless port 7 by coating with the corresponding coating plate 14.
This is a configuration in which a mixed film 17 containing 6 is provided.

As described above, according to the fourth embodiment, the radiant heat can reach the central portion of the ceramic combustion plate 3 as in the second embodiment, and the flame near the outer periphery of the flared flame opening 6 can be used. The combustion heat of the flared flame outlet 6 is transmitted to the cover plate 14, and not only radiant heat is generated from the mixed film 17 of the cover plate 14, but also unburned components and the like are further oxidized. Since it can be decomposed by the catalyst 16, a wide combustion amount variable range can be secured while obtaining a clean, wide and uniform radiation distribution.

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

As shown in FIG. 6, the cooker 18 is
9, a baking cabinet 20 is provided, and a fourth embodiment is provided above the baking cabinet 20.
Is installed as a cooking burner.

As described above, according to the sixth embodiment, since the radiant heat is radiated from the infrared radiating film 13 of the coating plate 12 whose temperature has been increased by the combustion heat, the burner 21
As well as the wide range of variable combustion amount of 1 above, the uniform and wide radiation distribution can be ensured, so a wide range of intensity can be squeezed. This makes it possible to realize a cooker that is easy for the user to use.

Embodiment 7 Hereinafter, a cooker according to a seventh embodiment using the burner of the present invention will be described.

As shown in FIG. 7, the cooking device 22 is
The baking cabinet 24 is provided in the inside of the baking cabinet 3, and the burner 25 shown in the fifth embodiment is installed as a cooking burner on the top of the baking cabinet 24, and includes Bunsen burners on the left and right sides of the bottom of the baking cabinet 24 via the grill 26. In this configuration, the lower heating means 27 is provided.

As described above, according to the seventh embodiment, the burner 25 is provided with the mixed film 17 containing the infrared radiating material 15 and the oxidation catalyst 16 on the cover plate 14.
5 As well as a wide range of variable combustion amount, the uniform and wide radiation distribution can be ensured, and a wide range of strong and weak squeezing is possible as a cooking burner for a double-sided cooker. It is possible to respond to various types of cooking menus and quickly cook. In addition, oily fumes and the like generated by the drop of the broth from the object to be cooked (not shown) near the lower heating means 27 are decomposed by coming into contact with the oxidation catalyst 16 contained in the mixed film 17 and become smoke. The amount radiated to the outside air can be reduced. Therefore, a clean cooker that can be cooked in a short time and is easy to use can be realized.

[0040]

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

(1) A band-shaped flame port is provided on the outer periphery of the combustion plate,
A portion strip flame mouth surrounds the first flameless opening, the second flameless opening provided between a portion of the strip flame mouth and the outer periphery of the combustion plate, a second flameless opening Around the boundary between the flank and the orifice
By the covering plate forming the peripheral end, the second covering the part of flameless opening and strip flame mouth, and a second flameless opening and strip flame mouth cover plate along the boundary vicinity of the In the case where the peripheral end of the cover plate is provided so that the peripheral end of the covering plate covers a part of the flame port of the band-shaped flame port, the lift of the flame formed by the flame port at the peripheral end of the band-shaped flame port is provided. Suppress the phenomenon, and because the combustion gas flow near the outer periphery of the band-shaped flame mouth can be reburned, while obtaining a uniform radiation distribution,
A wide combustion amount variable range can be secured.

(2) A certain gap is provided to cover the second non-flame port and a part of the band-shaped flame port with a cover plate, and the band-shaped flame port and the second flame port are connected from the peripheral end side of the combustion plate. In the case where the cover plate is inclined so as to reach the vicinity of the boundary of the non-flame opening portion and reduce the distance of the gap, not only stabilization of combustion, but also the heat from the cover plate to the combustion plate due to the gap. Emission is suppressed, combustion can be easily achieved with little carbon monoxide emission even when the combustion gas comes into contact with the coating plate, and the peripheral edge of the coating plate where the gap distance is minimized is the combustion edge of the combustion plate. When the surface faces downward, the holding structure prevents the combustion plate from falling.

(3) A part of the second non-flame port and the band-shaped flame port is covered with a cover plate, and the flame port located at the boundary between the second non-flame port and the band-shaped flame port is formed. When the diameter of the flame is made larger than the diameter of the other flames in the band-shaped flame, the flow velocity is reduced in the large-diameter flame, and the flame lift phenomenon is suppressed and the temperature can be increased at the same time. Therefore, combustion with low carbon monoxide emission can be easily realized, and a wide combustion amount variable range can be secured.

(4) When an infrared radiation coating is provided on the surface of the cover plate not facing the second non-flame port, the flammability of the flame near the outer peripheral portion of the band-shaped flame port can be maintained, and the cover plate can be maintained. Since the radiant heat is also generated from the infrared radiating film, a wide and variable combustion amount variable range can be secured while obtaining a wide and uniform radiation distribution, and the corrosion resistance of the coated plate can be improved.

(5) When a mixed film containing an infrared radiating material and an oxidation catalyst is provided on a surface of the cover plate that does not face the second non-flame port, the flame at the flame port near the outer peripheral portion of the band-shaped flame port is provided. Not only can flammability be maintained and radiant heat is generated from the mixed coating on the coated plate, but also unburned components and oil smoke can be further decomposed with an oxidation catalyst. Variable range and cleanness can be secured.

[Brief description of the drawings]

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

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.

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.

4A is a front view of a burner according to a fourth embodiment of the present invention. FIG. 4B is a 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. 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 cross-sectional view illustrating the concept of the configuration of another cooker according to a seventh embodiment of the present invention.

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Burner case 2 Flame mouth 3 Ceramic combustion board 4 Strip-shaped flame mouth 5 First flameless mouth 6 Protruding flame mouth 7 Second flameless mouth 8, 9, 12, 14 Coated plate (combustion promoting means 10) Air gap 11 Flame array 13 Infrared radiation film 15 Infrared radiation material 16 Oxidation catalyst 17 Mixed film 18, 22 Cooker 19, 23 Main body 20, 24 Firing chamber 26 Grill net 27 Lower heating means

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-193838 (JP, A) JP-B-43-21238 (JP, B1) (58) Fields investigated (Int. Cl. ⁷ , DB name) F23D 14/14 F23D 14/02 F23D 14/30 F24H 3/04

Claims (5)

(57) [Claims] 1. A ceramic combustion plate having a flame outlet, ceramic
A burner casing for accommodating the click combustion machine having a covering plate which covers a portion of the ceramic combustion plate, a strip burner port portion is provided on the outer periphery of the ceramic combustion plate, a portion of belt flame mouth surrounds the first a flameless opening, the second flameless opening between the outer peripheral portion and the ceramic combustion plate of the strip flame mouth provided, second flameless opening
The peripheral end is formed along the vicinity of the boundary between
A burner in which the cover plate covers a part of the second non-flame port and the band-shaped flame port to constitute combustion promoting means. 2. A ceramic combustion plate having a flame opening, and a ceramic
Burner case for storing the combustion chamber and ceramic combustion
It has a coating plate that covers a part of the panel,
A band-shaped flame port is provided on the outer periphery, and the portion surrounded by the band-shaped flame port is the first.
Of the flame-shaped opening and the outer periphery of the combustion plate
The second flameless opening provided between the covering plate and a gap is provided, the strip flame mouth from peripheral end side of the ceramic combustion plate and the second flameless opening between the second flameless opening To the vicinity of the boundary, the cover is inclined so that the distance of the gap is reduced, and the combustion promoting means
Composed of burners. 3. A ceramic combustion plate having a flame opening, and a ceramic
Burner case for storing the combustion chamber and ceramic combustion
It has a coating plate that covers a part of the panel,
A band-shaped flame port is provided on the outer periphery, and the portion surrounded by the band-shaped flame port is the first.
And a part of the strip-shaped flame opening and the ceramic combustion plate
Provide a second non-flame port between the outer circumference of the flame outlet of the flame port located at the boundary between the second non-flame port and the band-shaped flame port, the other flame port of the band-shaped flame port Combustion promotion hand larger than the flame diameter
Burner with steps . 4. A combustion promotion means according to claim 1 to 4 provided an infrared radiation film Secondly flameless opening not facing surfaces of the cover plate
The burner according to any one of the preceding claims. 5. The combustion promoting means according to claim 1, wherein a mixed film containing an infrared radiating material and an oxidation catalyst is provided on a surface of the cover plate not facing the second non-flame port. To
Burner described .