JP2016205789A - Stove - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stove (a heating cooker, a heater) which enables prompt mass production at low costs in a time of disaster and quickly saves victims.SOLUTION: In a stove, a combustion chamber 1 is provided in a center, a fuel input port and an air intake port are provided at one side, and an exhaust port is provided at the other side. A chimney may be attached to the exhaust port and the fuel input port opens to the combustion chamber.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an indoor / outdoor stove (such as a drier, emergency equipment, a cooker, or a combustion furnace) using wood biomass made of firewood or building waste, or firewood as a fuel, and its use.

  In recent years, there is a structure called a rocket stove (rocket mass heater), which is popular and versatile, using a wood biomass or firewood as fuel. That is, it is a product that is subjected to secondary combustion by providing a combustion cylinder in the upper part of the combustion chamber, covering the wall of the combustion cylinder with a heat insulating material, and keeping the inside of the combustion cylinder at a high temperature. This rocket stove is useful because it can prevent the generation of smoke and can use hot air blown from an exhaust port, for example, can be cooked, that is, can be used as a so-called simple cooking appliance. Therefore, recently, the number of recent enthusiasts, including applicants, has increased. On the other hand, use as an emergency tool for disasters is also considered.

  And in Ichii, the top opening provided on the top plate of the base, which is the same as the non-patent document 1 mentioned in Non-Patent Document 1 and the pail can, and the side surface of this base A stove provided with an exhaust port and a chimney is used. The stove base is made of stainless steel, and the chimney is also made of stainless steel. It has poor heat resistance and durability, and deteriorates quickly. The stainless steel chimney is used to pass smoke, which is its original use. It is not intended to be used as a burning outlet for burning woody biomass such as firewood or building waste in a chimney, secondary combustion cannot be expected, and combustion efficiency is inferior, There are improvements such as. Non-Patent Document 2 discloses features such as the structure and effects of a rocket stove.

  In addition, there are prior documents that consider wood-burning stoves and their use for disasters. For example, there is a “wood stove” described in Japanese Utility Model Laid-Open No. 60-121101, and a “cooking stove” described in Japanese Patent Application Laid-Open No. 2013-24499. These documents have a structure in which attention is paid to the combustion chamber, and a structure in which a bypass air passage is formed and combustion efficiency and complete combustion are intended. Therefore, it is considered that the structure / manufacturing is complicated, the cost is likely to increase and the material is wasted, or there is no consideration regarding the combustion in the chimney and the combustion efficiency.

The best! Samurai & Rocket Stove, Agricultural Bunko Publication Date: October 20, 2014, pp. 18-31 Rocket Stove Issued; Japan Rocket Stove Spread Association Author; Iant Evans + Leslie Jackson Date published: December 24, 2009 Japanese Utility Model Publication No. 60-121101 JP 2013-24499A

  Conventionally, a stainless steel chimney (a shrimp pipe “elbow pipe”, or a joint pipe made of a T-curve, and / or a straight pipe combination. And). The use of the chimney member made of stainless steel is for smoke. Therefore, in the chimney, there is no assumption of secondary combustion of woody biomass such as firewood and construction waste, and with this, there is no consideration for heat resistance and durability, There are improvements such as the beginning of deterioration.

  In addition, in a conventional stove (handmade stove), there is a method in which a steel pipe is brought into an ironworks or the like, and after the steel pipe is processed into parts, it is welded to create a unique firing port and / or an exhaust port. However, it is not realistic to go to an ironworks or the like to request design and / or manufacture (made-to-order manufacturing) due to high costs and labor. Therefore, the steel pipe can be cut into a predetermined shape easily and immediately, or it can be a fired outlet having durability suitable for woody biomass, or a chimney member, a combustion chamber, an exhaust port, etc. There is a demand for being available at low cost.

  In the event of a disaster, a stove (heating cooker / heater) that can be mass-produced cheaply and immediately and realizes quick relief for victims is expected.

  In order to solve the above-mentioned problems, the present invention provides a combustion chamber using a steel pipe and a firing port, and has a structure that is excellent in durability and easy to manufacture, or the upper surface opening of the combustion chamber is used as a heating port. By using it, it is possible to boil dishes and hot water by placing and closing kettles, pots, bricks, etc. here in an emergency.

  First, wood biomass such as firewood and building waste is introduced from the fuel inlet and ignited with a gas burner. Primary combustion begins in the combustion chamber. After that, when secondary combustion starts in the chimney and the soot from the chimney becomes invisible, this secondary combustion is continued and the phenomenon that the flame is sucked into the chimney occurs. Provide a situation that does not blow out from the top opening, enjoy cooking and warm air.

  In addition, the soot can be used not only as a soot for a stove (rocket stove) but also has a practicality that can be easily disassembled by fitting a chimney directly.

  From the above, the present invention is expected to be used in fields such as outdoor, events, sports watching, fishing, agriculture, and forestry at the time of disaster.

  In order to exhibit the above characteristics, claims 1 to 6 are provided.

In claim 1, a stove comprising a combustion chamber at the center, a fuel input port and an air suction port on one side, and an exhaust port on the other side,
A chimney can be attached to the exhaust port, and the fuel input port is a stove that opens to the combustion chamber, and has the following characteristics.

  1: In an emergency, cooking and hot water can be boiled by placing and closing kettles, pans, bricks, etc. here. 2: A situation in which secondary combustion in the chimney begins with the primary combustion in the combustion chamber, and a flame is sucked into the chimney, and the flame does not blow out from the upper opening even if the upper opening is opened You can enjoy cooking and warmth. 3: The soot can be used not only as a soot for a stove, but also has a practicality that can be easily disassembled by fitting a chimney directly. 4: Expected to be used in fields such as outdoor, events, watching sports, fishing, agriculture, and forestry during disasters.

  According to a second aspect of the present invention, the combustion chamber is a stove configured by cutting a square steel pipe or a cylindrical steel pipe, and the characteristics described in the first aspect further include the following characteristics.

  5: A simple combustion chamber can be provided.

  In claim 3, a fuel inlet is obliquely provided in one of the combustion chambers, and an exhaust outlet is provided in the other side substantially horizontally in the longitudinal direction of the combustion chamber, and the combustion chamber and the fuel inlet, and / or The exhaust port is a separate part and a stove that can be combined. The above-described features of claim 1 further include the following features.

  6: A structure of a basic combustion chamber, a fuel input port, and an exhaust port, and a structure of each part that can achieve this structure can be proposed.

  According to a fourth aspect of the present invention, an inverted L-shaped sub-combustion chamber is mounted on the upper surface opening of the combustion chamber, leaving a fuel inlet and an air suction port, and an exhaust port is provided on the side surface of the inverted L-shaped auxiliary combustion chamber. And the exhaust port is provided with an exhaust pipe. The features of the first aspect of the invention further include the following features.

  7: By using a combustion chamber and an inverted L-shaped tube, a bypass combustion part can be configured, and a structure capable of efficient combustion and induction of a flame to the chimney can be provided.

  In claim 5, a chimney is attached to the exhaust port, and the chimney is a stove composed of a combination of a shrimp pipe “elbow pipe”, a T-shaped connecting pipe and / or a straight pipe, The features described in claim 1 further include the following features.

  8: An optimum chimney structure can be provided for a simple combustion chamber.

  According to a sixth aspect of the present invention, there is provided a stove configured such that the upper and lower surfaces of the combustion chamber are opened and the upper surface opening is used as a heating unit.

  9: It is possible to provide the structure of the upper and lower surfaces that is most suitable for a simple combustion chamber and the structure of the heating section (also used as a combined).

Perspective view from the other side showing the first embodiment FIG. 1 is a sectional view showing the first embodiment. Perspective view from one side showing the first embodiment 1 is a perspective view of a state in which a soot is pulled from a fuel inlet showing a first embodiment. The perspective view of the use condition which mounted the kettle in the combustion chamber which showed 1st Example The perspective view of the state which obstruct | occluded the upper surface opening of the combustion chamber which showed 1st Example with the board Perspective view from the other side showing the second embodiment Sectional view of FIG. 1 showing a second embodiment Perspective view from one side showing the second embodiment The perspective view of the state which draws a soot from the fuel inlet which showed 2nd Example The perspective view of the use condition which mounted the kettle in the combustion chamber which showed 2nd Example The perspective view of the state which obstruct | occluded the upper surface opening of the subcombustion chamber (one steel pipe) which showed 2nd Example with the board. It is an example of the other use of 1st Example and 2nd Example. The first rocket is inserted into a general rocket stove made of a pail can (A) and the second embodiment is inserted (I).

  The first embodiment shown in FIGS. 1 to 6 will be described. The feature is that a fuel input port (inclined fuel input pipe) provided on one wall surface and an air intake port are provided, and an exhaust port is provided on the other wall surface. It is the structure which has. Hereinafter, the structure will be described in detail.

  1 is a combustion chamber in which a rectangular steel pipe is cut, and is located at the center of the stove. The combustion chamber 1 has upper and lower surface openings 1a and 1b. The upper surface opening 1 a becomes the heating unit 2 of the combustion chamber 1.

  One wall surface of the combustion chamber 1 has an opening 1c (fuel inlet) provided on the lower side of the fuel input pipe 3, and an air suction port 1d on the lower side (lower side of the fuel input pipe 3). Further, the other wall surface of the combustion chamber 1 has an opening 1 e (exhaust port) that provides the base end side of the exhaust pipe 5. In this example, the size of the fuel injection pipe 3 <the size of the exhaust pipe 5, combustion products such as combustion gas and flame are actively guided to a chimney described later, and the introduction of outside air to the air inlet 1 d is urged. Structure. The opening 1c and the air inlet 1d are simultaneously opened on the wall surface, and the lower end of the fuel inlet pipe 3 (fuel inlet) is attached to the opening 1c, thereby forming the air inlet 1d and reducing the opening area. decide. The fuel input pipe 3 is substantially the same as the lateral width of the wall surface.

  A chimney 6 is fitted on the exhaust pipe 5. The chimney 6 is composed of a combination of a shrimp pipe “elbow pipe”, a connecting pipe 6a formed of a T-curve, and / or a straight pipe 6b, and is a structure in which a commercially available product can be used. The usage is thought to be the same as before.

  By providing the fuel input pipe 3 and the exhaust pipe 5 on the opposing wall surfaces of the combustion chamber 1, the balance and strength of the combustion chamber 1 are improved.

  An example of preferable use of the first embodiment will be described. When the upper and lower openings 1a and 1b of the combustion chamber 1 are sealed and the fuel R is put into the fuel input pipe 3 as shown in FIG. 4, the fuel input (opening 1c) From this point, it reaches the lower end and faces the bottom of the combustion chamber 1, and at this point, it is ignited by a gas burner or the like. While the intake of outside air from the air intake port 1d starts, the fuel R burns up and primary combustion starts in the combustion chamber 1. After that, when the primary combustion enters the border, the flame is sucked in at a stroke by the action of the heat riser and reaches the chimney 6, secondary combustion occurs in the chimney 6, and no soot is discharged. Smokeless combustion gas is emitted. And once secondary combustion starts in the chimney 6, even if it removes the mounting plate 6 which has sealed the upper surface opening 1a, it is safe without a flame blowing out.

  Although not shown in the drawings, a structure having a grate at the bottom of the fuel inlet can be used as a wood pellet stove. In addition, in the present invention, it can be provided as a steel pipe stove, for example, it can be used in combination with other drum can type heat exchangers together with cost reduction due to compactness, expansion of installation place, versatility and application field It can be used for enlargement. Moreover, in FIG. 5, the upper surface opening 1a is sealed with kettle, and water is boiled.

  The second embodiment shown in FIGS. 7 to 12 will be described. The feature is that an inverted L-shaped auxiliary combustion chamber made of the same material is installed so as to straddle the combustion chamber made of steel pipe, and the combustion chamber (one) is It is a structure having an exhaust port provided in the wall surface of the sub-combustion chamber (the other side) in the fuel input pipe (a structure having a fuel input port and an air intake port). Hereinafter, the structure will be described in detail.

  1 is a combustion chamber in which a rectangular steel pipe is cut, and is located at the center of the stove. The combustion chamber 1 has upper and lower surface openings 1a and 1b. A part of the upper surface opening 1a serves as a fuel inlet (which is an alternative to the fuel inlet pipe 3) and an air inlet 1d.

  An inverted L-shaped sub-combustion chamber 100 is mounted on the other part of the upper surface opening 1 a of the combustion chamber 1. The sub-combustion chamber 100 is formed by cutting a steel pipe into a short shape, combining it in an L shape, making one steel pipe A horizontal, making it a part of the combustion chamber 1, making the other steel pipe B a branch passage, and making one steel pipe A (combustion chamber) In this structure, the combustion chamber 1 communicates with the combustion chamber 1 via a part of the combustion chamber 1 and a part of the combustion chamber 1. The other steel pipe B (a part of the combustion chamber 1) has an exhaust port (opening 1e) on its wall surface, and an exhaust pipe 5 is provided in the opening 1e. Therefore, as shown in FIG. 8, the combustion chamber 1 has a structure in which one steel pipe A (mounted on the combustion chamber 1) of the sub-combustion chamber 100 is connected to the other steel pipe B (adjacent to the combustion chamber 1). (Indicated by arrows). Note that one wall surface of the other steel pipe B of the auxiliary combustion chamber 100 is a partition plate 7. Other structures conform to the first embodiment.

  An example of a preferred use of the second embodiment will be described. The lower surface opening 1b of the combustion chamber 1 and the upper and lower surface openings 100a, 100b and the upper and lower surface openings 100c, 100d of the auxiliary combustion chamber 100 (one and the other steel pipe) are sealed. As shown in FIG. 12, when the fuel R is applied to a partial opening of the combustion chamber 1, the fuel R reaches the bottom of the combustion chamber 1, and at this time, it is ignited by a gas burner or the like. As the outside air starts to be sucked from the air suction port 1 d of the partial opening of the combustion chamber 1, the fuel R burns up and primary combustion starts in the combustion chamber 1. Thereafter, when the primary combustion enters the border, the flame rises by the action of the heat riser in the direction indicated by the arrow in FIG. 8 (from a part of the combustion chamber 1, one steel pipe A → the upper surface opening 100c (one steel pipe A and Opening of the other steel pipe B) → The route of the other steel pipe B is obtained, and the other steel pipe B reaches the opening 100e (the same as the opening 1e of the combustion chamber 1) and the exhaust pipe 5, and sucks at once. Then, it reaches the chimney 6, secondary combustion occurs in the chimney 6, soot is no longer discharged, and smokeless combustion gas is discharged from the chimney 6.

  FIG. 13 is an example of other uses. The lower surface opening 1b is closed with a brick or an iron plate to protect the base. The first rocket is inserted into a general rocket stove made of a pail can (A) and the second embodiment is inserted (I).

  Each structure mentioned above is description of a preferable example of this invention. Therefore, the present invention is not limited to the above-described embodiments, and structures that change a part of the configuration within the scope of the invention, structures that can achieve the same features and effects, and the like are within the scope of the present invention. It is.

1 Combustion chamber 1a Upper surface opening 1b Lower surface opening 1c Opening (fuel inlet)
1d Air inlet 1e Open (exhaust)
100 Subcombustion chamber 100a Upper surface opening 100b Lower surface opening 100c Upper surface opening 100d Upper surface opening 100e Opening (exhaust port)
3 Fuel input pipe 5 Exhaust pipe 6 Chimney 6a Connecting pipe 6b Straight pipe 7 Partition plate

Claims (6)

A stove with a combustion chamber at the center, a fuel input port and an air intake port on one side, and an exhaust port on the other side,
A stove configured such that a chimney can be attached to the exhaust port, and the fuel input port opens into the combustion chamber.   The stove according to claim 1, wherein the combustion chamber is formed by cutting a square steel pipe or a cylindrical steel pipe.   The fuel inlet pipe provided at the fuel inlet is obliquely provided, and the exhaust pipe provided at the exhaust outlet is provided substantially horizontally in the longitudinal direction of the combustion chamber, and the combustion chamber and the fuel inlet, and / or The stove according to claim 1, wherein the exhaust port is a separate part and can be combined.   An inverted L-shaped sub-combustion chamber is mounted on the upper surface opening of the combustion chamber, leaving the fuel inlet and the air suction port, and the exhaust port is provided on the side of the inverted L-shaped auxiliary combustion chamber. The stove according to claim 1, wherein the exhaust pipe is provided in the exhaust port.   A chimney is attached to the exhaust pipe, and the chimney is constituted by a combination of a shrimp pipe “elbow pipe”, a T-curved connecting pipe, and / or a straight pipe. Stove described.   The stove according to claim 1, wherein the upper and lower surfaces of the combustion chamber are open and the upper surface opening is a heating unit.