Heating Regulator

Abstract

To provide a cooking device capable of heating a cooking chamber from above and below. [Solution] A cooking device (1) equipped with a cooking chamber (10) provided in a rocket stove (2), the cooking device (1) is configured to circulate combustion gas generated in the rocket stove (2) from one of an upper space (15) and a lower space (16) of the cooking chamber (10) to the other. The rocket stove is equipped with a heat riser (20) and an exhaust port (32), and the combustion gas circulated from one of the upper space and the lower space to the other flows across the heat riser in a vertical cross-sectional view and is discharged from the exhaust port.

Description

[Technical Field]

[0001] The present invention relates to a cooking device to be installed in a rocket stove. [Background technology]

[0002] A conventional cooking device proposed is a rocket stove in which combustion gas generated in the combustion chamber passes through a heat riser and is temporarily stored in a heating section below the cooking chamber, allowing the cooking chamber to be heated by the heating section (see Patent Document 1).The cooking chamber in this document can also be heated from the side because its sides are in contact with the thin walls of the heat riser, which have reduced thermal insulation. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6560926 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the conventional cooking appliances, the main heated areas in the cooking chamber are the sides and bottom, so the food needs to be turned over and it is not possible to cook both the top and bottom surfaces at the same time.

[0005] The present invention has been proposed in consideration of the above circumstances, and its object is to provide a cooking device that can heat food from above and below. [Means for solving the problem]

[0006] In order to achieve the above object, the configuration (1) of the cooking device of the present invention is a cooking device having a cooking chamber provided in a rocket stove, The rocket stove has a combustion chamber for burning fuel, a heat riser in communication with the combustion chamber, and an exhaust port, and the combustion chamber and the heat riser are arranged within an outer shell, before The heat riser generates The combustion gas generated by the cooking Directly above the room side space and and directly below the cooking chamberThe flow from one side of the side space to the other The combustion gas flowing from one of the upper space and the lower space to the other flows across the heat riser in a vertical cross-sectional view and is discharged from the exhaust port. It is characterized by:

[0007] The following description of the embodiments discloses that the cooking device according to the present invention may include the following subsidiary configurations. <Configuration (2)> In the configuration (1), The cooking chamber is provided with a smoke exhaust port for allowing soot and smoke generated in the cooking chamber to merge with the combustion gas flowing from one of the upper space and the lower space to the other, and the smoke exhaust port is provided with a gap formed between the bottom plate of the cooking chamber and the outer periphery of the heat riser. You may do so. <Configuration (3)> In the configuration (1) or (2), The cooking chamber has a narrowed shape at one end in a horizontal direction in a plan view, and a communication passage that connects the upper space and the lower space is provided on the side of the narrowed portion in a plan view. That's fine. [Effects of the Invention]

[0008] Since the cooking device of the present invention has the above-mentioned configuration, the cooking chamber can be heated from above and below using the combustion gas generated in the heat riser. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is an external perspective view of a heating cooker according to an embodiment of the present invention; [Figure 2] FIG. 2 is a schematic vertical cross-sectional view of the cooking device. [Figure 3] 2, showing the flow of combustion gas, and FIG. 3(b) is a perspective view of the cooking chamber. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, a cooking device 1 according to one embodiment of the present invention will be described with reference to the drawings. First, a basic configuration of the cooking device 1 will be described.

[0011] The heating cooker 1 is a cooker equipped with a cooking chamber 10 provided in a rocket stove 2, and is configured to circulate the combustion gas generated in the rocket stove 2 from one of the upper space 15 and the lower space 16 of the cooking chamber 10 to the other. Next, the detailed configuration of the cooking device 1 will be described with reference to FIGS.

[0012] Fig. 1 is an external perspective view of a cooking device 1 according to an embodiment. Fig. 2 is a schematic vertical cross-sectional view of the cooking device 1. Fig. 3(a) is a cross-sectional view of the cooking device 1 taken along line AA in Fig. 2, showing the flow of combustion gas, and Fig. 3(b) is a perspective view of a cooking chamber 10.

[0013] This cooking device 1 includes a cooking chamber 10 provided in a rocket stove 2. In other words, the cooking device 1 utilizes the combustion gas emitted from the rocket stove 2 for cooking, and is incorporated into the rocket stove 2.

[0014] In the following description, the side of the rocket stove 2 where the door 41a for putting food in and taking food out of the cooking chamber 10 is located is referred to as the front, and the side where the exhaust port 32 is located is referred to as the rear.

[0015] The rocket stove 2 including the cooking device 1 is configured as shown in FIG. 1, with a main body 5 for functioning as the rocket stove 2 and a cooking chamber 10 housed within an outer shell 40.

[0016] The main body 5 is equipped with a fuel inlet 30 for inputting various fuels, a combustion chamber 31 for burning the fuel, a heat riser 20 communicating with the combustion chamber 31 above, and an outlet 32. A smoke stack (not shown) is connected to the outlet 32. The fuel used here is not particularly limited, but may be firewood or a waste-derived fuel such as RPF (abbreviation for Refuse Derived Paper and Plastics Densified Fuel) made from waste plastics and the like.

[0017] The outer shell 40 comprises a lower outer shell 43 that surrounds the combustion chamber 31, a central outer shell 42 that surrounds the heat riser 20 to form a heat dissipation tube and has an exhaust port 32 formed at the rear, and an upper outer shell 41 that surrounds the upper part of the heat riser 20 and the cooking chamber 10. The outer shell 40 is made of metal, but may also be made of firebrick.

[0018] 2, the heat riser 20 is a cylindrical body with an insulating wall 21 made of concrete, ceramic, or the like arranged around the outer periphery, and an inlet 20a at the lower end of the heat riser 20 is connected to the combustion chamber 31. An outlet 20b at the upper end of the heat riser 20 leads to the upper space 15 arranged within the upper outer shell 41. The upper surface of the lower outer shell 43 to which the central outer shell 42 that covers the heat riser 20 is connected, and the surface in front of the central outer shell 42, is used as the heating section 43a.

[0019] The cooking chamber 10 is disposed adjacent to the upper periphery of the heat riser 20 so as to be in a substantially horizontal position. In other words, as shown in Figures 2 and 3, the heat riser 20 is disposed so as to penetrate the cooking chamber 10 from top to bottom.

[0020] The heat riser 20 is surrounded by a cylindrical central outer shell 42, and a gas flow space 22 is provided between the insulating wall 21 of the heat riser 20 and the central outer shell 42, through which combustion gases and soot and smoke emitted from the cooking chamber 10 flow.

[0021] The cooking chamber 10 is attached in a substantially horizontal position, approximately perpendicular to the heat riser 20, which extends in a substantially vertical direction. The cooking chamber 10 is configured with a heating plate 12 disposed inside an outer wall 11, such as an iron plate, and is open at the front. Food is loaded into and unloaded from the front opening 13 of the cooking chamber 10 through an opening 41b with a door 41a provided in the upper outer shell 41. The heating plate 12 is not limited to a square shape as shown in the illustration, and may be a tray type that is easier to load and unload. The heating plate 12 is also not limited to an iron plate, and may be a lava plate or a carbon plate.

[0022] As shown in Figure 3(a), the heat riser 20 is arranged to penetrate the cooking chamber 10 from below, and for this purpose, a lower round hole 11d larger than the outer diameter of the heat riser 20 is opened in the bottom plate 11b of the cooking chamber 10. When the heat riser 20 is installed, a smoke exhaust port 14 consisting of an annular gap is formed between the bottom plate 11b of the cooking chamber 10 and the outer periphery of the heat riser 20. An upper round hole 11e is opened in the top plate 11a of the cooking chamber 10 so that the heat riser 20 can be fitted in with almost no gap.

[0023] When cooking ingredients such as fish in the cooking chamber 10, smoke and odors are generated. However, because the smoke exhaust vent 14 is formed between the bottom plate 11b of the cooking chamber 10 and the outer periphery of the heat riser 20, this smoke and odor are exhausted from the smoke exhaust vent 14 to the outside of the cooking chamber 10. The smoke then flows to the exhaust vent 32, preventing the cooking chamber 10 and the room where the rocket stove 2 is installed from being filled with smoke and odors. Therefore, there is no need to use an exhaust fan. With conventional wood stoves, turning on the exhaust fan while using the stove reduces the pressure in the room where the wood stove is installed, causing the smoke from the wood stove to flow back in. Therefore, when using the exhaust fan, it was necessary to open a window in the room. However, with the present cooking appliance 1, no exhaust fan is required, allowing for safe use.

[0024] It is desirable for the heat riser 20 to have a longer (higher) cylindrical body to improve the heat dissipation effect, while it is desirable for the cooking chamber 10 to be located at an appropriate height that makes it easy to put food in and take it out. In this embodiment, to satisfy both of these conditions, both components are arranged so that the heat riser 20 penetrates the cooking chamber 10 from top to bottom, and it is designed so that the cooking chamber 10 can be used by an adult while standing.

[0025] Above the cooking chamber 10 is an upper space 15 that is connected to the heat riser 20. Flames and combustion gases from the heat riser 20 enter the upper space 15 and heat the cooking chamber 10 from above. The upper space 15 is connected to the lower space 16 via a communication path 17, and the combustion gases that flow into the lower space 16 heat the cooking chamber 10 from below.

[0026] Communication passage 17 is located at the front of cooking chamber 10. Both side surfaces of the front of cooking chamber 10 are cut out in a stepped shape, and the space outside step 11c functions as communication passage 17. Needless to say, in order to heat cooking chamber 10 evenly, it is desirable to provide step 11c (communication passage 17) in symmetrical positions (on both sides in this example) when looking at cooking chamber 10 from the front.

[0027] The area between the two stepped portions 11c at the front of the cooking chamber 10 may be dimensioned to fit within the opening 41b with the door 41a provided in the upper outer shell 41, allowing movement back and forth through the opening 41b. This makes it easier to take food in and out of the cooking chamber 10.

[0028] This communication path 17 allows the combustion gas in the upper space 15 to be guided to the lower space 16. In addition, smoke, soot, and fine particles generated in the cooking chamber 10 are discharged from the smoke exhaust port 14 and merge with the combustion gas. As shown in the example of this embodiment, the gap between the front opening 13 of the cooking chamber 10 and the door 41a can also be used as the smoke exhaust port 14 (see Figures 2 and 3(a)).

[0029] In addition, Figure 3(a) shows a schematic cross-sectional view of the combustion gas flow, overlapping vertically. In the figure, arrows F1 indicate the flow of flame and combustion gas in the upper space 15, and arrows F2 indicate the flow of soot, smoke, and fine particles in the cooking chamber 10. Arrows F3 indicate the flow of combustion gas containing soot, smoke, and fine particles in the lower space 16, and arrows F4 indicate the flow of combustion gas containing soot, smoke, and fine particles to the exhaust port 32. Note that Figure 3(b) only shows the flow of combustion gas flowing sequentially through the upper space 15, the connecting passage 17, and the lower space 16.

[0030] In this way, the cooking chamber 10 is provided with an outlet (gaps such as smoke exhaust ports) for the soot, smoke, and fine particles generated by cooking, so that the soot, smoke, and fine particles are less likely to accumulate in the cooking chamber 10, making it easier to clean the inside of the cooking chamber 10.

[0031] The flames and combustion gases that flow through the upper space 15 and the connecting passage 17 in this order flow into the lower space 16, where they join with the smoke, soot, and fine particles coming out of the smoke exhaust port 14 of the cooking chamber 10. The combustion gas then flows through the gas flow space 22 around the heat riser 20 to the exhaust port 32. In other words, the combustion gas flowing downward from the front of the cooking chamber 10 flows across the heat riser 20 in a vertical cross-sectional view.

[0032] In this way, the flame and combustion gas generated from the heat riser 20 pass through the upper space 15 and lower space 16 of the cooking appliance 1, and then flow, carrying with it the soot, smoke, and fine particles coming from the cooking chamber 10, into the gas flow space 22 located outside the heat riser 20 located at the rear, and further into the exhaust port 32 behind it.

[0033] Therefore, the exhaust path of the combustion gas is lengthened, and the heavy smoke, soot, and fine particles that flow with the combustion gas fall into the outer casing 40 along the exhaust path and accumulate therein. As a result, the emission of smoke, soot, and fine particles from the exhaust port 32 can be suppressed. In other words, the longer flow path of the flame exhaust from the rocket stove 2 promotes the combustion of unburned gas and significantly reduces the generation of smoke. In addition, because the fine particles and fly ash adhere to the outside of the cooking appliance 1 and have a dust collection function, the exhaust from the smoke stack equipped with the exhaust port 32 becomes cleaner, and the frequency of cleaning the smoke stack can be reduced.

[0034] As described above, the present cooking device 1 is configured to allow the flame and combustion gases generated by the main body 5 of the rocket stove 2 to flow into the upper and lower spaces 15 and 16 of the cooking chamber 10, thereby allowing food to be heated from both the top and bottom. Placing a heating plate 12 in the cooking chamber 10, as shown in the illustrated example, allows pizza to be baked on both sides simultaneously. While a wide variety of wood-burning stove cooking devices have existed in the past, the cooking chamber temperature was limited to around 300°C. However, for example, when baking pizza, a heat level of around 400°C to 500°C is appropriate, and a device that can bake both the top and bottom surfaces at high temperatures simultaneously is required. However, no device capable of such high-temperature cooking has been available. The present cooking device 1 allows the flame and combustion gases (hot air) from the heat riser 20 to flow from the upper space 15 to the lower space 16 of the cooking chamber 10, allowing pizza to be baked in a short time of approximately 90 to 120 seconds.

[0035] The cooking appliance 1 only needs to be configured to be heated from above and below by the combustion gas of the heat riser 20, and therefore needs to be configured to include a cooking chamber 10, an upper space 15 connected to the outlet of the heat riser 20, and a lower space 16 communicating with the upper space 15. In this embodiment, the cooking chamber 10, the upper space 15, and the lower space 16 are arranged inside the upper outer shell 41.

[0036] Furthermore, the cooking device 1 may be configured so that the combustion gas flows into the gas flow space 22 of the heat riser 20 in order to exhaust the soot, smoke, and fine particles from the cooking chamber 10 together with the combustion gas. In other words, the cooking device 1 may be configured to include the main body 5 of the rocket stove 2.

[0037] The cooking device 1 may be a unit formed by disposing the cooking chamber 10 within the upper outer casing 41 so as to form the upper space 15, the lower space 16, and the communication passage 17. The unitized cooking device 1 may be combined with the main body 5 to form the rocket stove 2.

[0038] In this way, the cooking device 1 may also have the functions of a rocket stove 2, or the rocket stove 2 may also have the functions of a cooking device 1. By providing both functions to the cooking device 1 (rocket stove 2), the combustion exhaust flow path is lengthened, increasing the heat dissipation area of ​​the entire stove, thereby improving the heating effect. Furthermore, by configuring the combustion exhaust flow path to be long, the exhaust heat heading toward the flue (chimney) equipped with the exhaust port 32 is reduced, thereby reducing the risk of danger from the heat of the flue. In this rocket stove 2, when the temperature of the top surface of the cooking device 1 was 450 degrees, the temperature of the flue (chimney) equipped with the exhaust port 32 was approximately 120 degrees.

[0039] The cooking device 1 according to the embodiment described above is merely an example. It goes without saying that the overall shape of the cooking device 1 and the shapes and arrangement of each part can be changed as appropriate.

[0040] For example, the cooking device 1 described above is configured so that the combustion gas from the heat riser 20 flows from the upper space 15 to the lower space 16 of the cooking chamber 10, but it may also be configured so that the gas flows from the lower space 16 to the upper space 15.

[0041] Furthermore, although the communication passage 17 is formed by providing a step portion 11c on the side surface of the outer wall portion 11 of the cooking chamber 10, the shape is not limited to this. The cooking chamber 10 may have a shape that narrows from the rear to the front in a plan view, and the side of the narrowed portion may be used as the communication passage 17. Note that the cooking chamber 10 may also have the communication passage 17 located at the rear. [Explanation of symbols]

[0042] 1 Cooker 2. Rocket Stove 5 Main body 10 Galley 11 Exterior wall 11a Top plate 11b Bottom plate 11c Step 11d Lower round hole 11e Upper round hole 12 Heating plate 13 Front opening 14 Smoke exhaust vent 15 Upper space 16 Lower space 17 Access Road 20 Heat Riser 21 Insulated walls 22 Gas flow space 30 Fuel inlet 31 Combustion chamber 32 Outlet 40 Outer Wall 41 Upper outer hull 41a Door 41b opening 42 Central Outer Wall 43 Lower outer shell 43a Heating section

Claims

1. A cooking device equipped with a cooking chamber that is provided in a rocket stove, The rocket stove has a combustion chamber for burning fuel, a heat riser in communication with the combustion chamber, and an exhaust port, and the combustion chamber and the heat riser are arranged within an outer shell, A heating cooker characterized in that the combustion gas generated through the heat riser is circulated from one of the upper space directly above the cooking chamber and the lower space directly below the cooking chamber to the other, and the combustion gas circulated from one of the upper space and the lower space to the other is caused to flow across the heat riser in a vertical cross-sectional view and be discharged from the exhaust port.

2. In claim 1, The cooking chamber is provided with a smoke exhaust port for allowing soot and smoke generated in the cooking chamber to merge with combustion gas flowing from one of the upper space and the lower space to the other, The cooking device is characterized in that the smoke exhaust port is a gap formed between the bottom plate of the cooking chamber and the outer periphery of the heat riser.

3. In claim 1 or claim 2, The cooking chamber has a narrowed shape at one end in the horizontal direction when viewed in a plane, and a communication path that connects the upper space and the lower space is provided to the side of the narrowed portion when viewed in a plane.

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