KR200272453Y1 - Roaster by using catalyst burner - Google Patents

Abstract

The present invention relates to a hot-bar roasting using a catalyst burner (catalyst combustion burner). The flame-retardant catalyst burner with high energy utilization efficiency and far-infrared radiation is heated directly to heat the hot bar to be cooked from the inside. It is possible to improve the quality, and to cook in a relatively short time, unlike the conventional hot bar roaster that the surface of the hot bar is over-dried by prolonged heating.

Description

Hot Bar Baking with Catalyst Burner {Roaster by using catalyst burner}

The present invention relates to a hot-bar roasting using a catalytic burner (catalyst combustion burner). Specifically, the hot bar is directly heated by a flameless catalyst burner having high energy use efficiency and releasing a large amount of far-infrared rays. By improving the taste and quality, it is to be cooked in a relatively short time, unlike the conventional hot bar roaster that the surface of the hot bar is over-dried by a long time heating.

Conventional hot bar roaster is an indirect heating method that is mainly heated by an electric heater, and insulated and illuminated by a halogen lamp, while heating the inner temperature of the heating chamber to 50 ℃ ~ 60 ℃ atmosphere with a high power consumption, the atmosphere The hot bar is bent at a temperature (50 ° C. to 60 ° C.).

Therefore, since the heating temperature is heated by the heat transfer heater until the total temperature of the heating chamber reaches a temperature of 50 ° C. to 60 ° C., the baking time of the hot bar is slightly different depending on the internal volume of the heating chamber. Not only is it difficult to maintain a constant heating temperature of the hot bar, but it is heated from the surface of the hot bar no matter how well baked, so if the inside of the hot bar is completely baked, the surface is over-dried. Since the surface is pressed or burned, there was a problem that the taste and quality are greatly reduced.

In addition, in order to avoid quality deterioration due to overheating and drying of the hot bar, the hot bar is not heated enough and is lukewarmly provided to the consumer, thereby reducing the taste and quality of the hot bar.

In addition, as the heating source adopts an indirect heating method using an electric heater with a high power consumption and a short lifespan, the maintenance cost is increased and the cumbersome time is required.

On the other hand, the catalytic combustion burner equipped with a catalyst mat enables the flameless combustion of the LPG or LNG at a low temperature of 600 ° C or lower by using a highly active catalyst that promotes the reaction between fuel and oxygen. Since fuel is completely burned without generating flame by the surface reaction of catalyst, it prevents pollution due to improved combustion rate, has far-infrared radiation effect, has no flame (flame) and low temperature, so there is no risk of fire, and heating object There is an advantage that can be heated close to the surface of.

Since the catalytic combustion has a much wider flammability range than conventional flame combustion, it is possible to burn lean gas that cannot be burned by flame combustion, and burns fuel at low load to achieve complete combustion, and in particular, because the combustion temperature is low. There are advantages such as no generation of nitrogen oxides, so it has been applied to various industrial fields.

Therefore, the present invention is to solve the problems of the conventional hot bar roaster by heating the hot bar directly with a flameless catalyst burner that is high in energy efficiency and far-infrared radiation is emitted to make the hot bar evenly from the inside to the outside to taste the taste of the hot bar The purpose of the present invention is to provide a hot barbecue that can improve the quality.

In order to achieve the above object, by installing a catalyst burner generating far infrared rays and flameless combustion heat in the upper part of a heating chamber of a hot bar roaster, the hot bars are evenly heated and baked by direct heat and far infrared rays.

The catalyst burner has a front structure, a catalyst mat, a ceramic thermal insulation material, and a rear network in a layer structure in a case in which a downward opening is formed, and a preheating heater connected to a controller is installed in the catalyst mat, and between the rear network and the case. A fuel retention space is formed in the casing, and a fuel supply pipe communicating with the fuel retention space is connected to one end of the case, and a fuel supply pipe is connected to an on / off valve controlled by a controller and a gas supply source so that a large amount of far-infrared rays are emitted to flameless combustion. It is.

Therefore, the hot bar is ripened from the inside by the action of far-infrared rays emitted from the catalyst burner, so that the hot bar can be sufficiently heated in a relatively short time, unlike the conventional roasting, where the surface is over-dried for a long time. No falling off.

In addition, since clean fuel such as LPG or LNG is used, soot, non-combustible gas (harmful gas), and nitrogen oxides are not generated, and it is hygienic, and it is bent by about 15 minutes by direct heat and far-infrared rays. It heats up faster than hot bar roasts, consuming less fuel.

1: Front view of the hot bar roaster of the present invention.

2 is a cross-sectional view of the hot bar grill.

3 is a block diagram of a catalytic burner installed in the hot bar roaster of the present invention.

<Explanation of symbols for the main parts of the drawings>

(2)-Bake Hot Bars (4) (28)-Case

(6)-Heating Room (8)-Hot Bar

(10)-base (12) (14)-transparent door

(16)-Air Supply (18)-Catalyst Burner

(20)-lights (22)-controller

(24)-Temperature Sensor (26)-Open

(30) (36)-Manche (32)-Catalyst Mat

(34)-ceramic insulation (38)-preheater

(40)-Fuel stay space (42)-Fuel supply pipe

(44)-opening and closing valve (46)-gas supply

(48)-Gas Leakage Sensor

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is an external perspective view of the hot bar grill 2 of the present invention, and FIG. 3 is a cross-sectional view of the hot bar grill 2 of the present invention, wherein a heating chamber 6 is formed inside the case 4, and a hot bar 8 is formed inside the heating chamber 6. The pedestal 10 of a plurality of floors can be installed to accommodate.

The pedestal 10 is satisfactory if the hot bar 8 is placed on its own shape while maintaining its shape. The pedestal 10 may be connected by arranging a plurality of thin wires so as not to interfere with heat conduction and convection.

Then, when the hot bar 8 is inserted into or pulled out from the rear part, front part, or side part of the hot bar roaster 2, heat-resistant transparent doors 12 and 14 that can be opened and closed up and down are installed, and a heating chamber is provided. In the upper portion of (6) is provided with a temperature sensor 24 for sensing the ambient temperature of the catalyst burner 18, the lamp 20 and the heating chamber 8 and inputs it to the controller 22.

Looking at the configuration of one embodiment of the catalyst burner 18, the front mesh 30, the catalyst mat 32 and the ceramic thermal insulation material 34 in the case 28, the downward opening 26 is formed as shown in FIG. ) And rear mesh 36 are installed in a layered structure.

The catalyst used in the catalyst mat 32 is a inorganic metal fibrous material supporting a noble metal or a metal oxide catalyst, for example, porous alumina containing a catalytically active metal such as platinum (Pt), palladium (Pd), rhodium (Rn), and the like. It is comprised by forming a fiber to an appropriate thickness.

The heat resistance temperature of the catalyst is maintained at a high specific surface area of the inorganic fibrous material, the maximum temperature of the catalyst layer is maintained within 600 ℃ to prevent volatilization or sintering of the catalyst supported on the fiber, and the combustion load is low, mainly indoor or factory It is used in low temperature drying or low temperature heating in heating or industrial process.

Meanwhile, the meshes 30 and 36 of the metal mesh function to enable efficient fuel supply and effective heat dissipation while maintaining the layer structure of the catalyst mat 32 and the ceramic thermal insulating material 34, and the ceramic thermal insulating material 34 is In addition to maintaining safety by preventing heat generated from the catalyst mat 32 from being transferred (conducted) to the rear surface, the feed fuel is distributed and supplied to the entire surface of the catalyst mat 32, and the catalyst mat 32 has a constant temperature. It works so that it can be maintained.

In addition, a preheating heater 38 is installed inside the ceramic heat insulating material 34 to achieve initial ignition by heating the catalyst mat 32 to a temperature of about 200 ° C. or more, which is a catalyst reaction start temperature, and the preheating heater 38 is provided. It is connected to the controller 22 and is under its control.

That is, the controller 22 supplies the operating power to the preheating heater 38 at the initial ignition to heat the catalyst mat 32 until the catalyst reaction start temperature is reached. After about 10 minutes, the controller 22 opens the gas shut-off valve. The opening 44 is supplied to supply fuel necessary for combustion to be ignited and burned, and then the power supplied to the preheating heater 38 is cut off.

A fuel retention space 40 is formed between the rear mesh 36 and the case 28, and a fuel supply pipe 42 communicating with the fuel retention space 40 is connected to one end of the case 28.

In the present invention, the supply or flow of fuel is automatically controlled by the on-off valve 44 by the controller 22, and the fuel supply pipe 42 supplies LPG, LNG, etc., in which combustion air is not mixed.

In addition, a plurality of air supply holes 16 are formed in the heat resistant transparent glass portions positioned at the left and right sides of the heating chamber 6, and the air required for combustion flows into the heating chamber 6 through the air supply holes 16. It is naturally diffused to the open portion 26 of the catalyst burner 18, the fuel supply pipe 42 of the catalyst burner 18 is connected to the on-off valve 44 and the gas supply source 46 which is controlled by the controller 22. .

In addition, a temperature sensor (or temperature switch) 24 connected to the controller 22 is installed inside the heating chamber 6 so as to sense an internal temperature of the heating chamber 6, and the controller 22 is initially initialized. During operation, the preheat heater 38 is disconnected or there is an abnormality, so that all the operations are stopped and the safety of gas fuel is emphasized, and the automatic preheating and ignition is performed by a one-touch button method.

In addition, a gas leakage detecting sensor 48 is installed inside, outside, or inside and outside the heating chamber 6, and then connected to the controller 22 to shut off the opening / closing valve 44 when gas leakage is detected. Enhance your safety by doing so.

In order to operate the hot bar roaster 2 configured as described above, power is supplied to the preheating heater 38 by the controller 22 to preheat the catalyst mat 32 until the catalyst reaction start temperature is 200 ° C. to 250 ° C. When the temperature of the catalyst mat 32 reaches the temperature, the controller 22 opens the gas shut-off valve 44, and the fuel (LPG / LNG, etc.) of the fuel supply source 46 is supplied to the fuel supply pipe 42 and the fuel retention space. 40, the rear mesh 36, and the ceramic insulation 34 in order to diffuse and supply to the catalyst mat 32 heated to the reaction temperature to ignite, and reacts with the air supplied to the air supply hole (16) In the state of combustion, flame heat and far-infrared rays are released, and normal combustion is performed, and power supplied to the preheating heater 38 by the controller 22 is cut off.

By normal combustion, the surface temperature of the catalyst burner 18 reaches about 400 ° C., but since the hot bar 8 located at the top thereof is located away from the catalyst burner 18, overheating or overdrying of the hot bar 8 is prevented. .

The hot bar roaster 2 emits a large amount of far infrared rays together with heat from the porous alumina fibers constituting the catalyst mat 32 during combustion, in which the catalyst mat 32 passes through the opening 26 to the lower hot bar 8. ), A large amount of far-infrared rays emitted with heat acts as a hot bar (8) and is baked.

At this time, the far-infrared rays penetrate deep inside the hot bar 8 to be cooked by self-heating, and waste products inside the hot bar 8 such as fat and cholesterol, which are harmful to the human body, are decomposed and discharged as oil, so the hot bar 8 is evenly distributed. It is baked so that a hot bar 8 of soft and delicious quality can be obtained.

The hot bar 8 is not pressed or burned even after being baked by the self-heating of far infrared rays, so that it can be stored or eaten with a margin.

In addition, when the catalyst burner 18 is burned, fuel and air are adsorbed on the catalyst surface, and an oxidation reaction occurs at the catalyst surface, resulting in a flameless combustion reaction, and the catalytic combustion has a much wider flammability range than that of conventional flame combustion. Is completely burned by burning a rare gas that is not combustible or burning a fuel at a low load. In particular, nitrogen oxides are not generated at all due to the low temperature of the combustion gas.

The present invention as described above is not limited to the present embodiment and the accompanying drawings, various substitutions, modifications and changes are possible within the scope without departing from the spirit of the present invention, which is usually in the art It is self-evident for those who have knowledge.

As described above, the present invention bakes a hot bar by direct heating of a catalyst burner in which a large amount of far infrared rays are generated, and thus has high heat energy and electric energy utilization efficiency as compared to the indirect heating method using a conventional electric heater, and the hot bar is affected by the action of far infrared rays. Since it is cooked from the inside to the outside, the surface of the hot bar is prevented from being dried, and the taste and quality are improved.

In addition, the hot bar is baked with abundant far-infrared radiation along with the flameless heat, so the hot bar is baked whole and evenly, and the waste that is harmful to the human body is removed to taste more delicious and well-baked hot bar. There is no effect that you can eat while keeping it relaxed.

In addition, since the flameless catalyst burner is used instead of the high-heating heater with low power consumption, the power consumption is reduced.

Claims (3)

A heating chamber 6 is formed inside the case 4, and a plurality of layers of pedestals 10 for storing hot bars 8 inside the heating chamber 6 are provided, and a transparent door ( 12) in the hot bar roaster with (14) installed; Grilling a hot bar using a catalyst burner, characterized in that by installing a catalyst burner (18) generating far infrared rays and flameless combustion heat in the upper portion of the heating chamber to evenly burn the hot bar (8) by far infrared rays and direct heat. The method according to claim 1; The catalyst burner 18 has a front structure 30, a catalyst mat 32, a ceramic thermal insulation material 34, and a rear surface mesh 36 installed in a casing 28 in which a downward opening 26 is formed. The preheating heater 38 connected to the controller 22 is installed in the ceramic heat insulating material 34, and a fuel retention space 40 is formed between the rear mesh 36 and the case 28, and the case 28 is provided. Hot bar roasting using a catalytic burner by connecting a fuel supply pipe 42 communicating with the fuel retention space 40 at one end. The method according to claim 2; Grilling a hot bar using a catalyst burner by connecting the on-off valve 44 and the gas supply source 46 controlled by the controller 22 to the fuel supply pipe 42.