JP2017032210A - Stove including cooking function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stove including a cooking function, in particular, a constitution capable of properly sucking air by a heat riser composed of a heat-insulated chimney of a prescribed length, and efficiently performing cooking by efficiently transferring heat to a cooking portion by air of high temperature produced in combustion.SOLUTION: A metallic stove housing A having a substantially rectangular box shape, includes a fire port 1, a heat riser 2, a cooking chamber, a cooking portion 4 and a smoke exhaust portion 5. The heat riser is provided with a part reduced in heat insulation performance, and one side face of the cooking portion is kept into contact with the part reduced in heat insulation performance.SELECTED DRAWING: Figure 1

Description

  In this invention, a stove equipped with a cooking function, in particular, a heat riser composed of a heat-insulated chimney having a predetermined length is used to suck in good air, improve combustion efficiency, and efficiently generate generated high-temperature combustion gas. The present invention relates to a stove having a cooking function used for heating and cooking.

  Conventionally, a rocket mass heater called a rocket stove capable of efficiently burning woody fuel such as firewood is known as disclosed in Patent Documents 1 and 2. A rocket mass heater is a combustion device in which a heat riser consisting of a heat-insulated chimney of a predetermined length and an outside chimney is arranged outside the heat riser, and a fire outlet is connected to the lower part of the heat riser. An exhaust chimney is connected to the main body. Rocket / mass / heater has various advantages such as good thermal efficiency, no limitation on the type of wood fuel, horizontal exhaust chimney, no soot and simple structure. Have.

  The present inventors have previously proposed a rocket stove in which a cooking chamber such as an oven is provided in addition to the rocket mass heater so that cooking can be performed together with heating. Recently, the rocket stove that can perform this cooking has been further improved to improve the heat transfer effect into the cooking chamber, thereby improving the temperature in the cooking chamber and shortening the heat transfer time.

Utility Model Registration No. 3165517

"BLUETAIL HAPPINESS: Rocket Stove Principle Manual Complete Edition" (http://bluetailhappiness.ldblog.jp/archives/3419449.html)

  According to the present invention, high-temperature combustion gas generated by combustion is more efficiently transferred to a heating cooking chamber so that cooking can be performed efficiently.

  The present invention includes a heat riser comprising a chimney having a predetermined length that communicates with a lower part of a combustion port for burning wood fuel and has an outer periphery insulated, and a heating chamber into which combustion gas from the heat riser flows outside the heat riser. A cooking unit that heats the food to be cooked by receiving the heat of the combustion gas is disposed in the heating chamber, and a part of the heat riser that has reduced heat insulation is provided to reduce the heat insulation. It is characterized in that at least a part of the cooking unit is brought into contact with the part to transfer the heat in the heat riser to the cooking unit.

  The heat riser is composed of a heat insulating cylinder with a chimney inside, and a part of the cylinder constituting the heat riser is thinned or deleted to reduce the heat insulation, thereby reducing the heat insulation. It is characterized in that at least a part of the cooking unit is brought into contact with the portion to transfer the heat in the heat riser to the cooking unit.

  A heat riser is arranged by arranging a heat insulating material on the outer periphery of the chimney, a portion where heat insulation is reduced by reducing or deleting the heat riser of the heat riser is provided, and a portion of the cooking unit is provided in the portion where the heat insulation is reduced. It is characterized in that at least a part of the heat riser is brought into contact so that the heat in the heat riser is transferred to the cooking unit. The portion where the heat insulating property is reduced and the cooking portion are welded, for example.

  The heat riser has a cylindrical shape, preferably a polygonal cylindrical shape. The space in which the cooking unit outside the heat riser is arranged communicates with the smoke exhausting unit. The cooking section is a box-shaped oven.

  According to the stove equipped with the cooking function of the present invention, a part of the heat riser consisting of a chimney having a predetermined length with the outer periphery insulated is provided with a portion with reduced heat insulation, and the portion with reduced heat insulation, Because the heat in the heat riser is directly transferred to the cooking unit by bringing at least a part of the cooking unit into contact, the temperature in the cooking unit can be increased to a higher temperature in a shorter time than before, and in a short time This makes it possible to cook at a high temperature and widen the range of cooking items.

External perspective view Longitudinal section Longitudinal section of deformation Cross section of the same deformation Longitudinal sectional view enlarging part of the deformation

  Preferred embodiments of the present invention will be described with reference to the drawings. In the figure, symbol A is a metal substantially square box-shaped stove housing, which has a spout (1), a heat riser (2), a heating chamber (3), a cooking unit (4), and a smoke exhausting unit (5). Is provided. The firing port (1) includes a fuel input port (10) that opens upward in a trumpet shape, and a lateral passage (11) that connects a lower portion of the fuel input port (10) to a heat riser. The opening area of the fuel input port (10) may be increased or decreased by a lid. The outside of the heat riser (2) where the heating chamber (3) does not exist constitutes an external chimney.

  The heat riser (2) is composed of a chimney (20) having a predetermined length with its outer periphery insulated, and the above-mentioned firing port (1) is connected to the lower part of the heat riser (2). The upper end of the heat riser (2) is It communicates with a heating chamber (3) provided outside the heat riser. 1 and 2, the heat riser (2) is composed of a heat insulating cylinder (21) such as concrete or pottery, and the internal space is a chimney (20). Moreover, FIGS. 3-5 shows one deformation | transformation of a heat riser. The heat riser is composed of a cylinder (21) filled with a heat insulating material between double metal cylinders, and the inside of the cylinder (21) becomes a chimney (20). The structure of the heat riser (2) is not limited to these, but has a predetermined length, a high heat insulation effect on the outer peripheral surface of the chimney, a high temperature of the combustion gas, and a strong updraft It is preferable that it is a structure and a member.

  A part (22) with reduced heat insulation is provided in a part of the heat riser, preferably the upper part. In the heat insulating cylinder (21) of FIGS. 1 and 2, for example, a part (22) in which a part of the outer peripheral surface of the cylinder (21) is thinned to reduce the heat insulating property when the cylinder is formed. To do. Or it is good also as a part (22) which deleted a part of cylinder (21), and reduced heat insulation. In this case, one side surface of the cooking unit (4) abutted against the part (22) constitutes the chimney (20) as an alternative to the part from which the cylindrical body (21) is deleted. In the structure of FIGS. 3 to 5, a part of the heat riser is partially or partially removed to form a portion 22 with reduced heat insulation.

  A heating chamber (3) having a predetermined space is formed outside the heat riser (2) and communicates with the upper end of the heat riser (2). However, it flows in. The heating chamber (3) also functions as an external chimney that brings down the combustion gas from the heat riser (2). The cooking unit (4) is composed of an oven (40), and is disposed in the heating chamber (3). The cooking unit (4) is heated by the high-temperature combustion gas flowing from the heat riser and can perform desired cooking.

  At least one side surface of the cooking unit (4) is brought into contact with the portion (22) of the heat riser (2) where the heat insulating property is reduced, and the heat in the heat riser (2) is directly applied to the cooking unit (4). Heat is transferred. The contact of the cooking unit (4) with the portion (22) with reduced heat insulation is preferably in a state where the outer surfaces of both are in close contact by welding or the like. The heat riser (2) may be cylindrical, but in order to increase the contact area between the portion (22) with reduced heat insulation and the side surface of the cooking unit (4), a square, hexagon, etc. The polygonal shape is preferred. A part of the cylindrical body (21) shown in FIGS. 1 and 2 may be completely deleted to reduce the heat insulating property. In this case, one side surface of the cooking unit (4) that comes into contact with the portion constitutes a part of the chimney (20) as an alternative to the deleted portion of the cylindrical body (21).

  The smoke exhaust section (5) includes a smoke exhaust pipe (50) whose upper end is bent downwardly in a U-shape and an exhaust outlet (51) closed with a cap for connecting the horizontal exhaust smoke exhaust pipe. The smoke exhaust pipe (50) and the exhaust port (51) are connected to the heating chamber (3) through a substantially triangular connecting space (52). The upper surfaces of the heat riser (2) and the heating chamber (3) are formed in a horizontally continuous flat surface, and a cooking utensil can be placed on the flat surface and heated by high-temperature combustion gas inside. it can. Further, a circular opening / closing lid may be provided above the heat riser (2) to open the top of the heat riser (2) and directly heat the cooking utensil placed on the upper surface. .

  A thermometer for displaying the internal temperature, a lock plate for locking the door, etc. are attached to the front door (41) of the oven that constitutes the cooking unit. A heat-resistant glass window is attached and the inside is visible.

  When soot is injected into the fuel inlet (10) of the outlet (1) and ignited, the combustion gas passes through the side passage (11) and rises from the lower part of the chimney (20) through the heat riser, and the heating chamber (3 )to go into. Since the combustion gas flows through the insulated chimney, the combustion gas is kept at a high temperature, secondary combustion occurs, the updraft becomes stronger, the suction force from the opening increases, and the combustion efficiency improves, It can cause complete combustion and suppress the generation of smoke.

  Separation in which the temperature rise time in the oven is not contacted by the product according to the present invention (with the structure of FIG. 3) in which the heat riser and the oven are brought into contact with each other through the portion with reduced heat insulation. The measurement results compared with the mold product are shown below. In addition, the combustion gas temperature and temperature rising time when the temperature in the oven was raised to 200 ° C. were measured. The combustion gas temperature is the temperature outside the heat riser.

Combustion gas temperature (℃) Temperature rise time (min) Average temperature rise time (min)
Invention product 360 ~ 410 10 ~ 12 11
Remote type 420 ~ 530 15 ~ 40 24

A Stove case
(1) Mouth mouth
(2) Heat riser
(3) Heating chamber
(4) Cooking department
(5) Smoke exhaust section
(10) Fuel inlet
(11) Side passage
(20) Chimney
(21) Tube
(22) Parts with reduced heat insulation
(40) Oven
(41) Door
(50) Smoke stack
(51) Exhaust port
(52) Connected space

Claims (7)

  A heat riser consisting of a chimney of a predetermined length with a lower part connected to a firing port for burning wood fuel and the outer periphery insulated, and a heating chamber into which combustion gas from the heat riser flows outside the heat riser A cooking unit that heats the food to be cooked by receiving the heat of the combustion gas is disposed in the room, and a portion with reduced heat insulation is provided in a part of the heat riser, and the cooking is performed on the portion with reduced heat insulation. A stove having a cooking function, wherein at least a part of the portion is brought into contact with the cooking portion to transfer heat in the heat riser to the cooking portion.   The heat riser is composed of a heat insulating cylinder with a chimney inside, and a part of the cylinder constituting the heat riser is thinned or deleted to reduce the heat insulation, thereby reducing the heat insulation. The stove having a cooking function according to claim 1, wherein at least a part of the cooking unit is brought into contact with the portion to transfer heat in the heat riser to the cooking unit.   A heat riser is arranged by arranging a heat insulating material on the outer periphery of the chimney, a portion where heat insulation is reduced by reducing or deleting the heat riser of the heat riser is provided, and a portion of the cooking unit is provided in the portion where the heat insulation is reduced. The stove having a cooking function according to claim 1, wherein at least a part of the stove is brought into contact so that heat in the heat riser is transferred to the cooking unit.   The stove with a cooking function according to any one of claims 1 to 3, wherein the heat riser has a polygonal cylindrical shape.   The stove according to any one of claims 1 to 3, wherein the heat riser has a cylindrical shape.   The stove having a cooking function according to any one of claims 2 to 5, wherein at least a part of the heat riser with reduced heat insulation and at least a part of the cooking unit are welded.   The stove with a cooking function according to any one of claims 1 to 6, wherein the cooking unit is a box-shaped oven.

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