JP2009275936A - Rice cookable-stove - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stove free from outflow of a combustion gas in a stove, even when an opening formed on a top plate section of the stove is opened, and capable of cooking rice and the like. <P>SOLUTION: In this stove which comprises a fire grate disposed inside of a main body, and a combustion chamber formed at an upper part of the fire grate, and in which a solid fuel supply port provided with an openable and closable cover at the upper part of the fire grate is formed on a combustion chamber sidewall section, a secondary air intake port is formed at an upper part of the solid fuel supply port, and a primary air intake port and an ash taking-out port are formed at a lower part of the fire grate, a ceiling wall section of the combustion chamber is disposed in a state of being inclined upward from the depth toward a solid fuel supply port side, a combustion gas exhaust port section is formed at a solid fuel supply port side of the ceiling wall section of the combustion chamber, the combustion gas exhaust port section is formed between the main body ceiling wall section and the ceiling wall section of the combustion chamber, and opened to a combustion gas flow channel connected to a flue, and the main body ceiling wall section is provided with an opening section for setting a kettle. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a stove that can be cooked using sawdust, wood pellets, rice husk, firewood, charcoal, coal, solid fuel, and other solid fuels, and in particular, can be used for cooking rice, and when the kettle is removed after cooking The inflow of outside air into the stove allows the combustion gas of the stove to flow into the flue without flowing out of the stove, and the temperature of the outer wall of the stove can be rapidly lowered, sawdust, wood pellets, rice husk, firewood, charcoal Further, the present invention relates to a rice cooker capable of using coal, solid fuel and other solid fuel as fuel.

Stoves have been used for some time as a warm protector that burns solid fuel such as firewood, charcoal, and coal in a furnace equipped with a chimney, and heats the room by the thermal power. In such a stove, since the top plate part is heated to a temperature of about 300 ° C. by the heating power of the stove, the heating plate is formed into a cookable top plate and the heating power is used for cooking. It is well known (Patent Documents 1 and 2).
JP 2004-232932 A JP 2007-309587 A

  As described above, when the heating power of the stove is used for cooking, the food is placed directly on the top plate that can be cooked, or the cooking tool is placed on the top plate to cook the food. However, the heating stove used for such cooking has a structure that exclusively uses the top plate, and when the top plate is opened, the combustion gas of the stove leaks into the heated room. In order to avoid this problem, even if it is used for cooking, it can be used only for simple cooking of a side meal or kettle, and for example, it cannot be used for cooking in an open flame using a kettle or a pan.

In the case of cooking rice in a pot or pot, after use, it is indispensable to take out the pot or pot for cleaning the pot or pot, sharpening the rice, or putting the sharpened rice. When the kettle is taken out, the top plate is opened and the outflow of combustion exhaust gas from the stove and the generation of odor cannot be avoided. Therefore, the top plate is not structured to install the kettle.
The inventors of the present invention provide a stove top plate by providing a combustion gas exhaust port at a position lower than the top plate portion and setting the height of the chimney to be higher than the ceiling height of the room to be heated. It was discovered that even when the was opened, the room air was sucked into the stove from the opened top plate and flowed into the flue together with the combustion gas, so that the combustion gas did not flow out into the room. In such a stove in the present invention, in order to use the stove for cooking rice, a relatively large opening for placing a pot or a pot on the top plate is provided, and while heating by the stove is continued, It was discovered that even when cooking and removing the pot and kettle from the top plate opening, the combustion gas of the stove does not flow out into the room and a good atmosphere can be maintained.

An object of the present invention is to provide a stove capable of cooking rice and other cooking without causing an outflow of combustion gas in the stove even if the opening provided in the top plate portion of the stove is opened.
That is. In the present invention, a grate is provided inside the main body, and a combustion chamber is formed above the grate. A side wall of the combustion chamber is provided with a lid that can be opened and closed above the grate, and a solid fuel supply port is provided. In the stove where the secondary air intake is formed above the solid fuel supply port and the primary air intake and the ash extraction port are provided below the grate, the ceiling wall portion of the combustion chamber is A combustion gas discharge port portion is formed on the solid fuel supply port side of the ceiling wall of the combustion chamber, and is inclined upward from the back toward the solid fuel supply port side. The outlet part is formed between the main body ceiling wall part and the ceiling wall part of the combustion chamber, and is open to a combustion gas flow path connected to the flue, and the main body ceiling wall part has an opening for installing the pot. The stove is characterized by being provided. In the present invention, the openable / closable lid of the solid fuel supply port can be made of a material that can transmit infrared rays, and the lid of the hook can be made of a transparent material.

In the present invention, the stove is provided with a grate inside the main body and a combustion chamber is formed thereabove, and a side wall of the combustion chamber is provided with a lid that can be opened and closed above the grate and is a solid fuel. A stove in which a supply port is formed, a secondary air intake port is formed above the solid fuel supply port, and a primary air intake port and an ash extraction port are provided below the grate, and the ceiling of the combustion chamber The wall portion is provided to be inclined upward from the back toward the solid fuel supply port side, and a combustion gas discharge port portion is formed on the solid fuel supply port side of the ceiling wall portion of the combustion chamber, The combustion gas discharge port portion is formed between the main body ceiling wall portion and the ceiling wall portion of the combustion chamber, and is open to the combustion gas flow path connected to the flue. Is provided, so that the combustion chamber has a relatively large depth. Becomes Bed, it can be a large stove quantity of thermal storage and heat radiation amount. Further, in the stove of the present invention, the length of the flue can be increased, and the position connected to the flue of the exhaust port of the combustion gas flow path is set lower than the heating surface of the kettle, After cooking, even after removing the kettle, even if the lid is not covered, the combustion gas from the stove flows into the flue along with the air in the room where it is sucked, and is blown out of the stove from the stove installation port. It will not be leaked.
And since the stove of this invention can cook rice while heating, it becomes unnecessary to cook rice separately and can save fuel by that much.

  In the present invention, the top plate of the stove is formed with a pot installation hole having a size that allows the bottom of the pot to be cured. The pot mounting hole is formed to have a size that can accommodate the bottom of the pot for cooking rice cake, for example. In this case, when cooking rice less than 3 kg, you may use a pot for cooking rice cake, but in order to adjust the size of the hole for installing the pot on the top plate, Cover the top plate auxiliary member having an auxiliary hole, that is, cover the top plate auxiliary member so that the auxiliary hole of the top plate auxiliary member is not blocked, and a smaller pot than the three-pot cooker Can be installed in the auxiliary hole of the top plate auxiliary member and cooked.

  In the present invention, when the stove is not used for cooking rice, a cover plate member made of a material for heating cooking utensils such as iron or steel can be disposed so as to cover the hole for installing the pot on the top plate. In this invention, the cover plate member arrange | positioned at a top-plate part can be made into the iron plate for heat cooking so that a top-plate part can be used for fried foods, for example. When the top plate is used for pottery, a wire mesh can be attached on the lid plate member. As the fuel for the stove of the present invention, sawdust, rice husks, wood pellets and other solid fuels can be used. When cooking and cooking, it is preferable to use charcoal or firewood. Moreover, the adjustment of the thermal power at the time of cooking rice can be performed by adjusting the supply of fuel.

  In the present invention, the solid fuel supply path can be formed by disposing the outlet of the solid fuel supply device above the grate. The solid fuel conveyance path connects the inlet to the bottom of the solid fuel storage tank, and from the openings other than the solid fuel supply port of the stove, usually the openings leading to the combustion chambers provided on the side and back of the stove, A solid fuel conveyance path can be formed by inclining downward toward the lattice. The solid fuel conveyance path is capable of supplying solid fuel onto the combustion chamber grate, and can be a solid fuel conveyance path formed by a refractory conveyor, a chain conveyor, a screw conveyor or the like.

  In the present invention, the ceiling wall portion of the combustion chamber of the stove is provided so as to be inclined upward from the back toward the solid fuel supply port side. By forming the ceiling wall part of the combustion chamber of the stove in this way, the high-temperature combustion gas burned in the combustion chamber of the stove flows along the ceiling wall toward the solid fuel supply port side on the front surface of the stove, The heat radiation surface provided in the solid fuel supply port is heated, the front is heated through the heat radiation surface, and heating is performed. In the present invention, the stove can be manufactured from a steel plate. Thus, when the stove is made of a steel plate, the room can be heated through the steel plate surface, and the heating effect can be increased.

A combustion gas discharge port portion is formed on the solid fuel supply port side in the ceiling wall portion of the combustion chamber of the stove of the present invention. The combustion gas discharge port portion is formed between the main body ceiling wall portion of the stove and the ceiling wall portion of the combustion chamber, and is open to the combustion gas flow path connected to the flue. The combustion gas in the chamber is led from the combustion gas discharge port to a space forming a combustion gas flow path between the ceiling wall portion of the combustion chamber and the ceiling wall portion of the stove, and the bottom of the pan or the pot exposed in the space The top plate can be heated to cook rice and cook.
In the present invention, the combustion gas heats the top plate portion of the stove and flows out from the exhaust gas discharge port to the flue. In the present invention, an inlet for tertiary air for adjusting the furnace pressure can be provided below the chimney. When arranging the wire mesh on the top plate, it is for cooking pottery, and it is preferable to provide an exhaust hood and a ventilation fan above the stove.

  In the present invention, it is preferable to form the combustion gas flow path so that the bottom portion of the pot installed on the stove protrudes into the combustion gas flow path of the stove is directly heated by the combustion flame. In the present invention, the combustion chamber is provided so that the ceiling wall of the combustion chamber is inclined upward toward the fuel supply port so that the flame in the combustion chamber of the stove directly enters the back of the ceiling wall of the combustion chamber. A road is formed. The distance between the back of the ceiling wall of the combustion chamber and the inner surface of the ceiling wall of the stove is, for example, 100 to 160 mm so that the bottom of the kettle does not contact the ceiling wall of the combustion chamber when the kettle is installed on the stove. Preferably it is set.

  In the stove of the present invention, even if the shuttle is removed from the opening of the top plate and the opening of the top plate is opened, the draft is set by the chimney so that the combustion gas does not spout to the outside. In the present invention, since the combustion gas is discharged by natural ventilation by the chimney, the position of the combustion gas discharge port of the stove connected to the chimney is preferably set lower than the position of the top plate. In the present invention, the temperature of the combustion exhaust gas discharged to the chimney after being used for heating and rice cooking is relatively high. For example, a ventilator and a heat exchanger are provided to provide heating for other rooms. Can do.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings, but the present invention is not limited to the following description and illustration.
FIG. 1 is a schematic side sectional view of a stove according to an embodiment of the present invention.

  In the embodiment shown in FIG. 1, the stove 1 includes a grate 2 below, and a combustion chamber 3 is formed above the grate 2. Below the grate 2 is a primary air chamber 4, and a primary air inlet 6 is provided in a lower front part of the side wall 5 of the stove 1. The primary air is drawn into the primary air chamber 4 from the primary air inlet 6 and flows into the combustion chamber 3 from the grate 2. In this example, a solid fuel supply opening / closing door 7 is provided at the front center portion of the side wall portion 5 of the stove 1 so as to be opened and closed. An opening 8 of the combustion chamber 3 is formed inside the solid fuel supply opening / closing door 7, and the solid fuel supply opening / closing door 7 is opened to allow the solid fuel (not shown) to pass through the grate 2. Can be supplied on top. Thus, in this example, the solid fuel is supplied onto the grate 2 by opening the open / close door 7 for supplying the solid fuel. The solid fuel supplied on the grate 2 is ignited and burned by a suitable ignition material, flammable paper or fine wood chips. However, in the present invention, a heating wire (not shown) for ignition may be provided on the grate 2 and the ignition may be performed via the heating wire.

In this example, an ash receiver 10 having a pull-out handle 9 is provided at the bottom of the primary air chamber 4 below the grate 2. In this example, a part of the solid fuel supply opening / closing door 7 of the stove 1 is formed with an opening 11 for a viewing window in order to monitor the burning state of the solid fuel, and the infrared transmissive and heat resistant glass. Is inserted and a viewing window 12 is provided. In this example, a secondary air inlet 13 is connected above the viewing window 12, and the secondary air introduced from the secondary air inlet 13 flows into the inner space 14 of the viewing window 12. Then, the oxygen amount supplied to the combustion chamber 3 and insufficient for complete combustion of the solid fuel is supplied. The secondary air that has flowed into the space inside the heat-resistant glass of the viewing window 12 is supplied to the combustion chamber 3 while preventing the fogging of the glass of the viewing window 12.

  In this example, the ceiling wall portion 15 of the combustion chamber 3 is provided to be inclined upward toward the front side 16 of the stove 1 having the fuel supply port 8. A gas discharge port 17 is formed. A space between the back surface of the combustion chamber ceiling wall member 15 and the top plate portion 18 of the stove is a combustion gas flow path 19, and the stove provided at the upper portion of the side wall portion 5 on the rear side 20 of the stove 1. 1 is connected to a chimney 22 through an exhaust gas outlet 21. In this example, a pot installation hole 23 for cooking rice is formed in the top plate part 18 of the stove 1. The cooking pot installation hole 23 accommodates the bottom of the cooking pot (not shown) at the time of rice cooking, and the hook part (not shown) is placed on the peripheral edge 24 of the cooking pot installation hole 23. The kettle is installed on the top 18 of the stove. In this case, the bottom of the hook protrudes into the combustion gas flow path from the pot installation hole 23 and is heated by the combustion gas flowing through the combustion gas flow path 19.

  In this example, the hook installation hole 23 of the top plate portion 18 of the stove 1 is formed with a recessed inner edge so that the inner lid member 25 and the upper lid member 26 can be arranged. The inner lid member 25 is provided with a hook mounting hole 27 for a small hook, for example, having a size smaller than the hook mounting hole 23 of the top plate 18. For example, in the case where the hook installation hole 23 of the top plate portion 18 is a pot installation hole 23 of a 3 升 cooker, a 1 升 cooker cannot be installed. For example, an inner lid member 25 in which a pot installation hole 27 for cooking 1 pot is formed on the pot installation hole 23 for cooking 1 pot, You can make cooked rice. The upper lid member 26 is a lid that covers the hook mounting hole 27 of the hook of the inner lid member 25, and a handle 30 having a hooking hole 29 is provided in the upper concave portion 28 of the upper lid member 26. When installing the hook, a rod-shaped holder (not shown) is inserted into the hole of the handle 30 and lifted to remove the lid, and the hook is installed.

  In this example, in order to adjust the internal pressure in the combustion chamber of the stove to facilitate the discharge of the combustion gas from the chimney, it is preferable to provide the tertiary air introduction pipe 31 below the chimney 22 entrance. When the tertiary air introduction pipe 31 is provided, the unburned gas contained in the combustion gas flowing out from the combustion chamber 3 to the combustion gas flow path 19 can be burned in the chimney 22, and in the exhaust gas discharged from the chimney 22. This is preferable because the amount of unburned gas components can be reduced. In this example, in order to protect the outer wall 32 of the stove 1, a protective wall 33 is provided on the inner side of the outer wall 32. ing. Providing the protective wall 33 in this manner is preferable because it can prevent the outer wall 32 of the stove 1 from being damaged and reduce accidents caused by the stove.

Since this example is configured as described above, first, the upper lid member 26 and the inner lid member 25 that are put on the hook installation hole 23 formed in the top plate portion 18 of the stove 1 are removed, for example, The pot is installed in the pot setting hole 23 formed for cooking 3 kg. Then, for example, solid fuel such as soot, charcoal or wood pellets having a particle size of 5 mm is supplied onto the grate 2 of the combustion chamber 3 from the solid fuel supply port 7. On the other hand, primary air is supplied from the air pipe 6 to ignite a small piece of wood, and the solid fuel on the grate 2 is ignited and burned. The amount of secondary air introduced into the combustion chamber 3 from the secondary air inlet 13 is adjusted by looking at the degree of soot generation in the combustion chamber and the cloudiness of the viewing window 12, and generation of soot in the combustion chamber 3 In addition, the solid fuel is burned without fogging the viewing window 12. This example is a natural ventilation system and is not provided with a ventilator. However, in the case of a highly confidential house or the like, a pipe connected to the ventilator is connected to the primary air inlet and / or the primary air inlet, and the primary air and / or the secondary air is sent into the combustion chamber. A so-called pushing ventilation system can be adopted, or a so-called suction ventilation system in which a fan is directly or indirectly attached to a flue and exhaust gas is sucked and discharged directly or indirectly by the fan can be adopted.
When the cooked rice is cooked and the kettle is blown out, the kettle is taken out from the stove and steamed. To close the hook mounting hole 23 of the top plate 18. After closing the pot installation hole 23 in this way, when the top cover member 26 of the top plate portion is heated, cooking of the fried food or the like can be performed.

  In this example, the lid of the hook can be made of a material having excellent heat resistance and transparency such as heat resistant glass. Thus, when the lid of the kettle is made heat-resistant and transparent, the cooked rice can be grasped, and the cooked rice can be cooked to a desired hardness. That is, at the stage where the kettle is installed on the stove and heating is started, the kettle has a lot of moisture, and water droplets are attached to the inner surface of the lid, so the inside cannot be checked well. However, before the water is reduced and cooked, bubbles come out from the wall of the kettle and reach the lid. At this time, the water droplets attached to the lid are removed by this foam, and the cooked rice can be visually observed through the lid. Then, the foam disappears, the inner surface is not fogged, and the state of the cooked rice in the kettle until cooked Can be visually observed. When the wall of the kettle has become slightly burnt and brown, take the kettle out of the stove and leave it for a while to steam. If you want to make the cooked rice harder, increase the time of steaming. To shorten. Thus, by making the lid of the kettle transparent, it is possible to make a favorite cooked rice and prevent failure.

  In the present invention, a stove mounting hole is formed in the top plate of the stove, and the combustion chamber ceiling wall is inclined upward toward the solid fuel supply port side of the stove. You can cook rice. That is, in the past, while cooking with a stove, rice was separately cooked with a rice cooker, so that the heat of the stove can be used effectively and useful as a stove that can prevent warming of the atmosphere Therefore, industrial applicability is great.

1 is a schematic side sectional view of a stove according to an embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Stove 2 Grate 3 Combustion chamber 4 Primary air chamber 5 Side wall part 6 Primary air inlet 7 Solid fuel supply opening / closing door 8 Opening part of combustion chamber 3 9 Pull handle 10 Ash receiver 11 Solid fuel supply opening / closing door Sight window opening 12 provided in 7 sight window 13 secondary air inlet 14 space 15 inside sight window 15 ceiling wall 16 of combustion chamber 3 front side 17 of stove 1 combustion gas outlet 18 stove 1 The ceiling portion 19 of the combustion chamber 20 The rear side 21 of the stove 1 The exhaust gas discharge port 22 of the stove 1 The chimney 23 The hook installation hole 24 The peripheral edge 25 of the pot installation hole 23 The middle lid member 26 The upper lid member 27 From the pot installation hole 23 Small hook installation hole 28 Upper recess 29 of upper lid member Hook hole 30 Handle 31 Tertiary air introduction pipe 32 Steel plate wall for protecting outer wall

Claims (3)

A combustion chamber is formed above the grate with a grate inside the main body, and a solid fuel supply port is formed on the side wall of the combustion chamber with a lid that can be opened and closed above the grate. In the stove in which a secondary air intake is formed above the solid fuel supply port, and a primary air intake and an ash extraction port are provided below the grate, the ceiling wall of the combustion chamber extends from the back to the solid wall. A combustion gas discharge port portion is formed on the solid fuel supply port side of the ceiling wall portion of the combustion chamber, and is inclined toward the fuel supply port side. The combustion gas discharge port portion is a main body. It is formed between the ceiling wall and the ceiling wall of the combustion chamber, and is open to the combustion gas flow path connected to the flue, and the main body ceiling wall is provided with an opening for installing the pot Stove characterized by that. The stove according to claim 1, wherein at least a part of the lid capable of opening and closing the solid fuel supply port is made of a material capable of transmitting infrared rays. The stove according to claim 1, wherein at least a part of the lid of the kettle is made of a transparent material.

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