JP5863693B2 - Iron plate heating and combustion equipment - Google Patents

Description

  The present invention relates to an iron plate heating and combustion apparatus for heating an object to be heated via an iron plate.

  A combustion apparatus that heats an object to be heated via an iron plate has various uses. For cooking, a griddle that performs teppanyaki cooking is known. Such a heating and combustion apparatus heats an iron plate having high thermal conductivity to a high temperature, so that a planar heating body can be formed, and an object to be heated or an object to be heated having a relatively large area and whose shape is not specified. Suitable for heating (yakisoba, eggs, okonomiyaki, etc.).

  Such an iron plate heating and combustion apparatus includes an iron plate and a burner for heating the iron plate, and heats the iron plate to a high temperature with a flame of the burner (see Patent Document 1 below). In order to heat an iron plate having a relatively large area, a plurality of flame holes of a burner are provided.

JP 11-190517 A

  Since the conventional iron plate heating and combustion device heats the iron plate with the flame of the burner, there is a difference in the amount of heat applied to the iron plate between the place where the flame is directly hit and the place where it is not hit, and the iron plate that heats the part to be heated A temperature distribution is generated on the surface. Accordingly, there is a problem that uniform heating cannot be performed on an object to be heated having a large area unless the position of the iron plate surface is moved.

  In order to make the temperature distribution of the iron plate uniform, it is conceivable to make the flame hole close to the back surface of the iron plate and expand the flame along the back surface of the iron plate. In the premixed burner that supplies gas to the hole, if the flame hole that releases the gas is too close to the iron plate, the flame hole itself is heated by the heat of the heated iron plate and the flame propagates to the premixed gas supply path. There is concern that the phenomenon will occur.

  This invention makes it an example of a subject to cope with such a problem. That is, an object of the present invention is to provide an iron plate heating and combustion apparatus that can make the temperature distribution of the iron plate uniform without causing a flashback phenomenon.

  In order to achieve such an object, an iron plate heating and combustion apparatus according to the present invention comprises at least the following configuration.

  An iron plate that heats an object to be heated on the surface side, and a red heat radiant burner disposed in proximity to the back surface of the iron plate, the red heat radiant burner having a plurality of flame holes on the surface facing the back surface of the iron plate. An iron plate heating and combustion apparatus comprising: a formed red heat radiation plate, wherein the flame hole portion has a mixed gas forming space for mixing fuel gas and combustion air supplied independently.

  According to the iron plate heating and combustion apparatus having such a feature, the iron plate is heated by the red heat radiant burner disposed in the vicinity thereof. As a result, in addition to heating by a flame that burns in a plurality of flame holes, the surface of the iron plate has little temperature unevenness because it is heated by radiant heat from the red heat radiation plate heated by the combustion of the flame holes. A uniform temperature region can be formed.

  Further, since the red heat radiation burner is mixed with the fuel gas and the combustion air in the flame hole portion, the flashback phenomenon does not occur even when the red heat radiation burner is brought close to the iron plate. As a result, the iron plate and the red heat radiation burner as the heat source can be safely brought close to each other, and the iron plate can be efficiently and uniformly heated.

It is explanatory drawing explaining the iron plate heating combustion apparatus which concerns on one Embodiment of this invention. It is explanatory drawing which showed the usage pattern of the iron plate heating combustion apparatus which concerns on embodiment of this invention. It is explanatory drawing which showed the usage pattern of the iron plate heating combustion apparatus which concerns on embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view illustrating an iron plate heating and combustion apparatus according to an embodiment of the present invention. 1A is an overall cross-sectional view as viewed from the side, FIG. 1B is a plan view, and FIG. 1C is an enlarged explanatory view of a flame hole portion.

  The iron plate heating and combustion apparatus 1 includes an iron plate 2 that heats an object to be heated on the front surface side, and a red heat radiation burner 3 that is disposed close to the back surface of the iron plate 2. In the illustrated example, the iron plate 2 has a rectangular flat plate shape, but is not limited thereto, and may have a circular shape, a dome shape, or the like, or may have irregularities on the surface.

  The red heat radiation burner 3 includes a red heat radiation plate 30 in which a plurality of flame holes 10 are formed on the surface facing the back surface of the iron plate 2. The red heat radiating plate 30 is formed of, for example, a refractory material such as ceramic, and burns red by heating due to combustion of the flame hole portion 10 and emits infrared rays as radiant heat. The form of the red heat radiation plate 30 is formed corresponding to the form of the iron plate 2, and if the iron plate 2 is a flat plate shape, the red heat combustion plate 30 is also formed in a flat plate shape accordingly. The red heat radiation plate 30 has a surface disposed close to the back surface of the iron plate 2.

  A plurality of flame holes 10 formed on the surface of the red heat radiation plate 30 are arranged in a distributed manner on the surface. Although the arrangement form of the flame hole part 10 is not specifically limited, It is desirable that the flame hole part 10 is uniformly distributed within a predetermined region. Each flame hole 10 has a mixed gas forming space S for mixing fuel gas and combustion air supplied independently. That is, the flame hole part 10 employs a premixing method in which the mixed gas forming space S is provided in the flame hole part 10.

  The mixed gas formation space S is formed by a recess 30 </ b> A formed on the surface of the red heat radiation plate 30. An air flow path 30B that penetrates the red heat radiation plate 30 communicates with the recess 30A, and the combustion gas supply path 11 with the gas emission port 11A facing the recess 30A is disposed in the air flow path 30B. The flame hole portion 10 is a mixture of combustion air flowing into the recess 30A through the air flow path 30B and fuel gas exiting from the gas outlet 11A of the fuel gas supply passage 11 and flowing into the recess 30A. A small flame Fs having a short flame length is formed in the recess 30A. In the illustrated example, an air chamber 31 into which air flows from the outside is formed inside the red heat radiation burner 3, and an air flow path 30 </ b> B in each flame hole portion 10 communicates with the air chamber 31.

  According to such an iron plate heating and combustion apparatus 1, the iron plate 2 is heated by the flame caused by the combustion in the flame hole portion 10 of the red heat radiation burner 3, and at the same time, the red heat radiation plate 30 is heated by the combustion of the flame hole portion 10 and red heat is generated. Combustion occurs, and the iron plate 2 is further heated by the radiant heat from the red heat radiation plate 30. Thus, the red heat radiation plate 30 becomes a planar heat source that generates substantially uniform heat by the combustion of the flame hole portion 10 and the red heat combustion of the red heat radiation plate 30, and this planar heat source is in a state close to the back surface of the iron plate 2. Since the iron plate 2 is heated, a uniform temperature region with almost no temperature unevenness can be formed on the surface of the iron plate 2.

  Moreover, since the red heat radiation burner 3 includes the premixed flame hole portion 10 as described above, a combustion mixture is not formed on the upstream side of the flame hole portion 10. For this reason, the flashback phenomenon which is a problem with the premixing burner can be fundamentally eliminated, and the flame hole portion 10 of the red heat radiation burner 3 is brought close to the back surface of the iron plate 2 while ensuring a safe combustion state. be able to. Thereby, the iron plate 2 can be uniformly heated safely and efficiently.

  FIG.2 and FIG.3 is explanatory drawing which showed the usage pattern of the iron plate heating combustion apparatus which concerns on embodiment, and has shown typically arrangement | positioning of the flame hole part 10 with respect to the iron plate 2, and gas supply to the flame hole part 10 Yes. In the iron plate heating and combustion apparatus 1 shown in FIGS. 2 and 3, a plurality of uniform temperature regions (regions A, B, C) are formed on the surface of the iron plate 2. The plurality of flame holes 10 are dispersedly arranged so that the plurality of regions A, B, and C are at different temperatures, and gas is supplied to each flame hole 10 through a gas supply path 11.

  In the example shown in FIG. 2, the flame holes 10 are distributed in each region so that the regions A, B, and C have a uniform temperature distribution. The arrangement density of the holes 10 (the number of arrangement per unit area) is different. Region A is a region where the arrangement density of the flame holes 10 is the highest, region B is an area where the arrangement density of the flame holes 10 is slightly low, and region C is an area where the arrangement density of the flame holes 10 is low. Due to such a difference in arrangement density, the region A becomes a high temperature uniform temperature, the region B becomes a medium temperature uniform temperature, and the region C becomes a low temperature uniform temperature.

  In the illustrated example, an independent gas supply system is formed for each region in the flame holes 10 dispersedly arranged in each region. In the regions A, B, and C, gas supply to the gas supply path 11 connected to the flame hole 10 is controlled by one valve Va, Vb, and Vc, respectively. As a result, the gas can be supplied / blocked for each of the areas A, B, and C, and the gas supply amount can be adjusted for each of the areas A, B, and C.

  The example shown in FIG. 3 is the same as the example of FIG. 2 in that the regions A, B, and C can be made uniform temperature regions with different temperature settings. In the example shown in FIG. 3, the gas supply to the plurality of flame holes 10 is divided into a plurality of systems in one region, and the temperature in the uniform temperature region is increased by the selective gas supply to the plurality of systems. Is set.

  In the illustrated example, the region A is a gas supply system that can supply gas to all the flame holes 10 by opening the valve Va1. The region B is divided into a gas supply system managed by the valve Vb1 and a gas supply system managed by the valve Vb2, and a part of the flame holes shown by a solid line is opened by opening the valve Vb1 and shutting off the valve Vb2. Gas supply to the unit 10 becomes possible. The region C is divided into a gas supply system managed by the valve Vc1 and a gas supply system managed by the valve Vc2, and by opening the valve Vc1 and shutting off the valve Vc2, some flame holes shown by a solid line Gas supply to the unit 10 becomes possible. In the region B and the region C, the dispersion density of the flame holes 10 that can be supplied by one gas supply system is different. In the region B, the density is slightly high, and in the region C, the density is low. In the region B, when the valve Vb2 is opened and the valve Vb1 is shut off, a region where the dispersion density of the flame holes 10 is further low can be formed.

  According to such a form of use, cooking by high temperature heating is performed in the region A, cooking by medium temperature heating is performed in the region B, and the cooked object to be heated is held while being heated on the iron plate 2 in the region C. Can be used. At this time, since the temperature in each region can be made uniform, the entire region can be used without waste. Further, since the gas supply can be cut off for each region, the gas supply is performed only to the flame hole portion 10 in a specific region (for example, the region A), and the gas supply to the flame hole portion 10 in the other region is cut off. Thus, it is possible to realize a usage pattern in which the gas consumption is suppressed.

  According to the iron plate heating and combusting apparatus 1 according to the embodiment of the present invention having such a feature, the temperature distribution of the iron plate 2 can be made uniform without causing a flashback phenomenon. By forming a plurality of uniform temperature regions, the functionality of iron plate cooking can be enhanced.

  As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to these embodiments, and the design can be changed without departing from the scope of the present invention. Is included in the present invention. In addition, the above-described embodiments can be combined by utilizing each other's technology as long as there is no particular contradiction or problem in the purpose and configuration.

1: Iron plate heating and combustion device, 2: Iron plate, 3: Red heat radiation burner,
10: Flame hole part, 11: Gas supply path, 11A: Gas outlet
30: Red heat radiation plate, 30A: Recess, 30B: Air flow path,
S: mixed gas formation space,
Va, Vb, Vc, Va1, Vb1, Vb2, Vc1, Vc2: Valve

Claims (4)

An iron plate that heats the object to be heated on the surface side, and a red heat radiation burner disposed in proximity to the back surface of the iron plate;
The red heat radiation burner includes a red heat radiation plate in which a plurality of flame holes are formed on the surface facing the back surface of the iron plate,
The said flame hole part has a mixed gas formation space which mixes the fuel gas and combustion air supplied independently, The iron plate heating combustion apparatus characterized by the above-mentioned. The mixed gas formation space is a recess formed on the surface of the red heat radiation plate,
An air flow path penetrating the red heat radiation plate is communicated with the recess, and a combustion gas supply path with a gas outlet facing the recess is disposed in the air flow path. Item 1. An iron plate heating combustion apparatus according to Item 1.   2. The surface of the iron plate is formed with a plurality of uniform temperature regions, and the plurality of flame holes are dispersedly arranged so that the plurality of uniform temperature regions can be set to different temperatures. The iron plate heating combustion apparatus of description.   The gas supply to the plurality of flame holes is divided into a plurality of systems, and the temperature in the uniform temperature region is set by selective gas supply to the plurality of systems. Iron plate heating combustion equipment.

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