Combustion device

Abstract

To provide a heating device which enables simplification of a structure.SOLUTION: A combustion device 10 has a combustion chamber 14 for combusting a solid fuel and includes: a main housing chamber 15 which is provided above the combustion chamber 14 in a vertical direction and houses the solid fuel to be supplied to the combustion chamber 14; a passage 22 which is provided connecting the combustion chamber 14 with the main housing chamber 15 and configured to discharge a combustion gas generated in the combustion chamber 14 to the main housing chamber 15 and supply the solid fuel housed in the main housing chamber 15 to the combustion chamber 14; and an exhaust passage 51 which is connected to the main housing chamber 15 above the passage 22 in the vertical direction and configured to exhaust the combustion gas in the main housing chamber 15 to an outdoor space.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a combustion device that combusts solid fuel in a combustion chamber. [Background technology]

[0002] An example of a combustion device that burns solid fuel in a combustion chamber is described in Patent Document 1. The combustion device described in Patent Document 1 has a solid fuel container, a combustion chamber, and an exhaust device. The solid fuel container contains plant-derived solid fuel, and has a breathable fuel holding member at its lower end. The combustion chamber is provided at the bottom of the solid fuel container. The exhaust device is connected to the combustion chamber. The solid fuel container is also provided with an outside air intake port. The fuel holding member is mesh-like or mesh-pane-like and breathable. Furthermore, the fuel holding member has a function that prevents the solid fuel from falling, but allows the ash of the solid fuel to fall. The combustion chamber is provided with an ash tray. An outside air intake port is provided at the upper end of the solid fuel container, and a lid body is provided to cover the outside air intake port.

[0003] The combustion chamber has a first combustion chamber and a second combustion chamber, and the first combustion chamber is provided at the bottom of the solid fuel container. The second combustion chamber extends almost horizontally from the first combustion chamber. The exhaust device is a chimney connected to the second combustion chamber. Combustible gas generated from the solid fuel is discharged from the solid fuel container to the second combustion chamber, and is discharged to the outside through the exhaust device via the second combustion chamber. As the solid fuel continues to burn, the solid fuel loaded into the solid fuel container to the full extent burns one by one from the bottom, and when combustion is complete, it turns to ash, falls from the fuel holding member, and is collected in the ash tray. When the solid fuel at the bottom runs out, the solid fuel at the top drops down and continues to burn. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication 2009-19846 Summary of the Invention [Problem to be solved by the invention]

[0005] The present inventors recognized a problem in that, in the combustion device described in Patent Document 1, the solid fuel storage body and the exhaust device are arranged at a horizontal distance from each other, and a second combustion material is arranged between the solid fuel storage body and the exhaust device, resulting in a complex structure of the combustion device.

[0006] An object of the present disclosure is to provide a combustion device that can have a simplified structure. [Means for solving the problem]

[0007] The present disclosure provides a combustion device having a combustion chamber for burning solid fuel, the combustion device comprising: a main storage chamber that is provided vertically above the combustion chamber and that stores the solid fuel to be supplied to the combustion chamber; a passage that connects the combustion chamber and the main storage chamber, discharges combustion gas generated in the combustion chamber to the main storage chamber and supplies the solid fuel stored in the main storage chamber to the combustion chamber; and an exhaust passage that is connected to the main storage chamber vertically above the passage and that discharges the combustion gas in the main storage chamber to the outdoors. Effect of the Invention

[0008] In the combustion device of the present disclosure, the main storage chamber that stores the solid fuel also serves as a path for discharging the combustion gas generated in the combustion chamber, thus simplifying the structure of the combustion device. [Brief description of the drawings]

[0009] [Figure 1] 1 is a front cross-sectional view of a heating device, which is a specific example of a combustion device. [Diagram 2] FIG. 2 is an enlarged front cross-sectional view of a portion of the heating device. [Diagram 3] FIG. 2 is a plan view of the heating device in a plane perpendicular to the vertical direction. [Figure 4] This is a front cross-sectional view showing a first example in which charcoal briquettes in the secondary storage chamber are supplied to the main storage chamber. [Diagram 5] This is a front cross-sectional view showing a second example in which charcoal briquettes in the secondary storage chamber are supplied to the main storage chamber. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] (overview) The combustion device in the present disclosure burns solid fuel in a combustion chamber. A specific example of the combustion device is a heating device. The heating device can be used to suppress a temperature drop in a target space, to maintain the temperature of the target space within a predetermined temperature range, and the like. The target space includes, for example, the inside of a building, such as a vinyl greenhouse, or the inside of a house. Furthermore, the combustion device in the present disclosure has a storage chamber that stores solid fuel, and can supply the solid fuel in the storage chamber to the combustion chamber.

[0011] (Specific examples) In this embodiment, several specific examples of heating devices will be described with reference to the drawings. As shown in Fig. 1, a heating device 10 is provided, for example, inside 12 of a house 11. The heating device 10 has a support base 13, a combustion chamber 14, a main storage chamber 15, and sub storage chambers 40, 41. The support base 13 is made of, for example, heat-resistant bricks, heat-resistant blocks, etc., and the upper surface of the support base 13 is approximately flat. The support base 13 is placed at a place of use 60. An apparatus main body 18 is placed on the support base 13.

[0012] The device body 18 is made of a thermally conductive metal material, such as iron, and is configured in a box shape. A support member 19 is provided inside the device body 18, and the support member 19 divides the combustion chamber 14 and the ash collection chamber 20. The combustion chamber 14 is formed above the support member 19 in the direction of gravity, that is, the vertical direction, and the ash collection chamber 20 is formed below the support member 19 in the vertical direction. The support member 19 is made of, for example, a wire mesh, and is provided approximately horizontally inside the device body 18. The support member 19 supports a solid fuel, such as a charcoal briquette 21, to be burned in the combustion chamber 14. The charcoal briquette 21 is produced by felling a tree, burning the chips of the wood to make charcoal, and further crushing the charcoal, and then pressurizing and bonding it.

[0013] The combustion chamber 14 is a space in which the charcoal briquettes 21 supported by the support member 19 are burned. The device body 18 has a passage 22, and the main storage chamber 15 is connected to the combustion chamber 14 via the passage 22. The passage 22 is arranged between the combustion chamber 14 and the main storage chamber 15 in the vertical direction. The passage 22 serves to discharge the fuel gas generated in the combustion chamber 14 to the main storage chamber 15 and to supply the charcoal briquettes 21 in the main storage chamber 15 to the combustion chamber 14. An air supply pipe 23 is connected to the device body 18. The air supply pipe 23 is made of, for example, metal, and an air passage 24 is provided inside the air supply pipe 23. Air in the interior 12 is supplied to the combustion chamber 14 through the air passage 24. A flow rate control valve 25 is provided in the air supply pipe 23. The flow rate control valve 25 is a valve for controlling the flow rate of air supplied from the air passage 24 to the combustion chamber 14. A user can manually operate the flow rate control valve 25 to adjust the flow rate of air supplied to the combustion chamber 14 .

[0014] 2, the device body 18 has a door 26 and an opening 27, and the door 26 is operably attached to the device body 18 via a hinge. A user can operate the door 26 to open and close the opening 27. The door 26 is made of, for example, heat-resistant glass, and when the door 26 is in a state where the opening 27 is closed by the door 26, the user can view the combustion chamber 14 from the inside 12 through the door 26. The opening 27 is connected to the combustion chamber 14, and the user can put the ignited charcoal briquettes 21 into the combustion chamber 14 through the opening 27.

[0015] The ash recovery chamber 20 is a space in which ash 28 generated by burning the charcoal briquettes 21 in the combustion chamber 14 accumulates. The device body 18 has a door 29 and an outlet 30, and the door 29 is operably attached to the device body 18 via a hinge. When a user operates the door 29, the outlet 30 can be opened and closed. The door 29 is made of metal, for example, and the user can operate the door 29 to open the outlet 30 and take out the ash 28 in the ash recovery chamber 20 from the outlet 30.

[0016] The main housing pipe 31 is provided on the device body 18. The main housing pipe 31 is made of, for example, cast iron, and extends in a substantially straight line along the vertical direction. That is, the imaginary line A1 passing through the center of the main housing pipe 31 is disposed along the substantially vertical direction. The main housing chamber 15 is provided in the main housing pipe 31, and the main housing chamber 15 is connected to the combustion chamber 14 via the passage 22. The main housing chamber 15 is provided above the combustion chamber 14 in the vertical direction. As shown in FIG. 3, when the heating device 10 is viewed from directly above in a plan view, the cross-sectional shape of the main housing pipe 31 is, for example, a rectangle, and has four walls 32, 33, 34, and 35. The wall 32 and the wall 33 are disposed in parallel, and the wall 34 and the wall 35 are disposed in parallel. As shown in FIG. 1, an input port 36 is provided at the upper end of the main housing pipe 31, and the input port 36 is connected to the main housing chamber 15.

[0017] The maximum vertical height from the place of use 60 shown in FIG. 1 to the input port 36 is set to, for example, 150 cm. A lid 37 is provided for opening and closing the input port 36. A user can operate the lid 37 to open the input port 36 and input the charcoal briquettes 21 into the main storage chamber 15. When multiple charcoal briquettes 21 are input into the main storage chamber 15, the multiple charcoal briquettes 21 come to rest in a single vertical row. In the main storage chamber 15, the charcoal briquettes 21 at the lowest position rest on top of the charcoal briquettes 21 in the combustion chamber 14.

[0018] The auxiliary storage pipes 38, 39 are provided so as to protrude from the outer surface of the main storage pipe 31. The auxiliary storage pipes 38, 39 are made of, for example, cast iron. An auxiliary storage chamber 40 is provided in the auxiliary storage pipe 38, and an auxiliary storage chamber 41 is provided in the auxiliary storage pipe 39. The auxiliary storage chamber 40 is connected to the main storage chamber 15 via a supply port 42. The auxiliary storage chamber 41 is connected to the main storage chamber 15 via a supply port 43.

[0019] As shown in Fig. 3, the auxiliary housing pipe 38 protrudes from the wall 33, and the auxiliary housing pipe 39 protrudes from the wall 32. When the heating device 10 is viewed from directly above in a plan view, the main housing pipe 31 is disposed between the auxiliary housing pipes 38 and 39. When the heating device 10 is viewed from the front as in Fig. 1, the supply port 42 is disposed lower than the supply port 43 in the vertical direction.

[0020] An inlet 44 is provided at the upper end of the auxiliary storage tube 38, and a lid 45 is provided to open and close the inlet 44. A user can open the inlet 44 and put a spherical charcoal briquette 21 into the auxiliary storage chamber 40 from the inlet 44. A plurality of charcoal briquettes 21 are stored in a line in the auxiliary storage chamber 40. When the heating device 10 is viewed from the front, the inlet 44 is provided vertically above the supply port 42. In other words, when the heating device 10 is viewed from the front, the imaginary line A2 passing through the center of the auxiliary storage tube 38 is inclined with respect to the imaginary line A1 of the main storage tube 31. The angle between the imaginary line A1 and the imaginary line A2 is designed to a value that allows the charcoal briquette 21 in the auxiliary storage chamber 40 to move toward the main storage chamber 15 under its own weight.

[0021] An inlet 46 is provided at the upper end of the auxiliary storage tube 39, and a lid 47 is provided to open and close the inlet 46. A user can open the inlet 46 and put the charcoal briquettes 21 from the inlet 46 into the auxiliary storage chamber 41. A plurality of charcoal briquettes 21 are stored in a row in the auxiliary storage chamber 41. When the heating device 10 is viewed from the front, the inlet 46 is provided above the supply port 43 in the vertical direction. That is, when the heating device 10 is viewed from the front, the imaginary line A3 passing through the center of the auxiliary storage tube 39 is inclined with respect to the imaginary line A1 of the main storage tube 31. The angle between the imaginary line A1 and the imaginary line A3 is designed to a value that allows the charcoal briquettes 21 in the auxiliary storage chamber 41 to move toward the main storage chamber 15 under their own weight. Furthermore, the inner shape of the auxiliary storage tube 38 in a plane perpendicular to the imaginary line A2 is, for example, circular. Moreover, the inner shape of the auxiliary storage tube 39 in a plane perpendicular to the imaginary line A3 is, for example, circular.

[0022] As shown in FIG. 2, the supply port 42 is provided with an adjustment plate (opening / closing plate) 48. The adjustment plate 48 is made of, for example, metal, and determines the timing of supplying the charcoal briquettes 21 contained in the auxiliary storage chamber 40 to the main storage chamber 15. The adjustment plate 48 is suspended from the auxiliary storage tube 38. The shape and dimensions of the adjustment plate 48 are designed so that the charcoal briquettes 21 cannot pass between the adjustment plate 48 and the inner surface of the auxiliary storage tube 38 when the adjustment plate 48 is hanging straight down under its own weight. The adjustment plate 48 is pushed toward the main storage chamber 15 by the charcoal briquettes 21 in the auxiliary storage chamber 40. The adjustment plate 48 is biased counterclockwise in FIG. 2.

[0023] An adjustment plate (opening / closing plate) 49 is provided at the supply port 43. The adjustment plate 49 is made of, for example, metal, and determines the timing for supplying the charcoal briquettes 21 stored in the auxiliary storage chamber 41 to the main storage chamber 15. The adjustment plate 49 is suspended from the auxiliary storage tube 39. The shape and dimensions of the adjustment plate 49 are designed so that the charcoal briquettes 21 cannot pass between the adjustment plate 49 and the inner surface of the auxiliary storage tube 39 when the adjustment plate 49 is hanging straight down under its own weight. The adjustment plate 49 is pushed toward the main storage chamber 15 by the charcoal briquettes 21 in the auxiliary storage chamber 41. The adjustment plate 49 is biased clockwise in FIG. 2.

[0024] Further, the gas exhaust pipe 50 is connected to the main accommodation pipe 31. The gas exhaust pipe 50 has an exhaust passage 51, and the exhaust passage 51 is connected to the main accommodation chamber 15 via an exhaust port 52. The exhaust port 52 is provided above the passage 22 in the vertical direction. Specifically, the exhaust port 52 is disposed between the input port 36 and the supply port 43 in the vertical direction. In other words, the supply ports 42, 43 are provided between the exhaust port 52 and the passage 22 in the vertical direction. The gas exhaust pipe 50 is made of, for example, a metal having heat resistance. The gas exhaust pipe 50 has a bellows 53, and a part of the longitudinal direction of the gas exhaust pipe 50 extends in an approximately horizontal direction and is supported by the wall of the house 11. Also, a part of the longitudinal direction of the gas exhaust pipe 50 is disposed outdoors 54.

[0025] Furthermore, a chimney 55 is provided outdoors 54, and the chimney 55 is connected to an end of the gas exhaust pipe 50. The chimney 55 has a portion that extends in a substantially vertical direction, and has an exhaust passage 56. The exhaust passage 56 is connected to the exhaust passage 51 and the outdoors 54.

[0026] (Example of use) A user places one ignited charcoal bunker 21 into the combustion chamber 14 through the opening 27, and places the charcoal bunker 21 on the support member 19. Air is supplied to the combustion chamber 14 through the air passage 24. This promotes the combustion of the charcoal bunker 21 in the combustion chamber 14. In addition, the heat of the charcoal bunker 21 in the combustion chamber 14 is transferred to the charcoal bunker 21 located at the lowest position in the main storage chamber 15, and the charcoal bunker 21 burns.

[0027] Therefore, the combustion gas generated by the combustion of the charcoal briquettes 21 in the combustion chamber 14 has a smaller specific gravity than air, and is discharged to the main storage chamber 15 through the passage 22. In addition, the combustion gas generated in the lowest charcoal briquettes 21 in the main storage chamber 15 rises in the main storage chamber 15. The combustion gas then rises in the main storage chamber 15 and flows into the exhaust passage 51. The combustion gas that has flowed into the exhaust passage 51 is discharged to the outside 54 through the exhaust passage 56. Here, the exhaust port 52 is disposed vertically below the input port 36. Therefore, the combustion gas in the hottest part in the main storage chamber 15 can be prevented from being discharged to the outside 54 through the chimney 55.

[0028] In addition, the heat generated by the combustion of the charcoal briquettes 21, including the charcoal briquettes 21 in the combustion chamber 14, is transferred to the air in the interior 12 via the device body 18. Therefore, the temperature of the interior 12 can be lowered or the temperature of the interior 12 can be maintained within a predetermined temperature range. Furthermore, ash is generated by the combustion of the charcoal briquettes 21 in the combustion chamber 14, and the ash falls under its own weight through the gaps in the support member 19 into the ash collection chamber 20. When the volume of the charcoal briquettes 21 in the combustion chamber 14 decreases, the charcoal briquettes 21 in the main storage chamber 15 move downward under its own weight. Then, the charcoal briquettes 21 at the lowest position among the charcoal briquettes 21 in the combustion chamber 14 moves into the combustion chamber 14 or falls.

[0029] In this way, the multiple charcoal briquettes 21 stacked vertically in the main storage chamber 15 move by their own weight to the combustion chamber 14, starting from the bottom. Therefore, the duration during which the charcoal briquettes 21 are burned in the combustion chamber 14 can be increased. In addition, since multiple secondary storage pipes 38, 39 are provided, an increase in the maximum height of the heating device 10 can be suppressed. Furthermore, the user can open the door 29 and remove the ash 28 accumulated in the ash recovery chamber 20 from the removal port 30.

[0030] Incidentally, when the topmost charcoal briquette 21 in the main storage chamber 15 is located above the adjustment plate 49 as shown in FIG. 2, the adjustment plate 49 is in contact with the charcoal briquette 21 in the main storage chamber 15, and the adjustment plate 49 is stopped. In other words, the adjustment plate 49 closes the supply port 43, and the charcoal briquette 21 in the secondary storage chamber 41 is stopped in the secondary storage chamber 41. Also, when the topmost charcoal briquette 21 in the main storage chamber 15 is located above the adjustment plate 48, the adjustment plate 48 is in contact with the charcoal briquette 21 in the main storage chamber 15, and the adjustment plate 48 is stopped. In other words, the adjustment plate 48 closes the supply port 42, and the charcoal briquette 21 in the secondary storage chamber 40 is stopped in the secondary storage chamber 40.

[0031] Then, the charcoal briquettes 21 stored in the main storage chamber 15 move downward one by one, and when the topmost charcoal briquettes 21 among the charcoal briquettes 21 in the main storage chamber 15 moves below the lower end of the adjustment plate 49 as shown in FIG. 4, the adjustment plate 49 moves away from the topmost charcoal briquettes 21. Therefore, the adjustment plate 49 is pushed by the charcoal briquettes 21 stored in the secondary storage chamber 41 and moves clockwise. Then, the supply port 43 opens, and the charcoal briquettes 21 stored in the secondary storage chamber 41 move within the secondary storage chamber 41 by gravity and are supplied to the main storage chamber 15 through the supply port 43. Therefore, the duration during which the charcoal briquettes 21 are burned in the combustion chamber 14 can be further increased.

[0032] Furthermore, when the charcoal briquettes 21 in the main storage chamber 15 move downward, and the topmost charcoal briquettes 21 among the charcoal briquettes 21 in the main storage chamber 15 moves below the lower end of the adjustment plate 48 as shown in FIG. 5, the adjustment plate 48 moves away from the topmost charcoal briquettes 21. As a result, the adjustment plate 48 is pushed by the charcoal briquettes 21 in the secondary storage chamber 40 and moves counterclockwise. Then, the supply port 42 opens, and the charcoal briquettes 21 stored in the secondary storage chamber 40 move within the secondary storage chamber 40 by gravity and are supplied to the main storage chamber 15 through the supply port 42. Therefore, the duration during which the charcoal briquettes 21 are burned in the combustion chamber 14 can be further increased.

[0033] 3, which is a plan view of the heating device 10 in a plane perpendicular to the vertical direction, the main housing pipe 31 is provided on the support base 13, and is disposed between the auxiliary housing pipes 38 and 39. In other words, the main housing pipe 31 is disposed at the center of the auxiliary housing pipes 38 and 39. Therefore, the center of gravity of the heating device 10 is set at a predetermined position on the imaginary line A1. This ensures the static balance of the heating device 10, and prevents the heating device 10 from tilting to either the left or right in FIG. 1.

[0034] Furthermore, an enclosing element 61 can be provided upright at the place of use 60. The enclosing element 61 is an element that prevents surrounding objects from accidentally coming into contact with the heating device 10. The enclosing element 61 is provided so as to surround the periphery of the device body 18 and a part of the main housing pipe 31 in the height direction. The enclosing element 61 is provided in an annular shape in a plan view of the heating device 10. The enclosing element 61 may be any of a substantially rectangular shape, a substantially circular shape, a substantially elliptical shape, and the like in a plan view of the heating device 10. The enclosing element 61 can be, for example, a wire mesh, a fence, or the like. The enclosing element 61 may be provided in double or triple layers around the heating device 10.

[0035] (Effects of the embodiment) The main storage chamber 15, which supplies the charcoal briquettes 21 to the combustion chamber 14, also serves as a path for discharging the combustion gas generated in the combustion chamber 14 to the chimney 55. This simplifies the structure of the heating device 10. In addition, the sub storage pipes 38 and 39 protrude in the opposite direction from the main storage pipe 31. This allows the heating device 10 to maintain static balance and prevent it from tipping over.

[0036] (Other explanations) An example of the technical meaning of the matters described in this embodiment is as follows. The heating device 10 is an example of a combustion device. The combustion chamber 14 is an example of a combustion chamber. The main storage chamber 15 is an example of a main storage chamber. The passage 22 is an example of a passage. The exhaust passage 51 is an example of an exhaust passage. The auxiliary storage chambers 40, 41 are an example of an auxiliary storage chamber. The supply ports 42, 43 are an example of a supply port. The adjustment plates 48, 49 are an example of an adjustment plate. The main storage pipe 31 is an example of a main storage pipe. The auxiliary storage pipes 38, 39 are an example of an auxiliary storage pipe. The ventilation path 24 is an example of an ventilation path. The flow rate adjustment valve 25 is an example of a flow rate adjustment valve. The charcoal briquettes 21 are an example of solid fuel. The direction along the virtual line A1 is an example of the vertical direction.

[0037] The heating device described in this embodiment is not limited to the one described using the drawings. For example, the cross-sectional shape of the main housing tube and the auxiliary housing tube in a plane perpendicular to the imaginary line may be any of a rectangle, a circle, an ellipse, and the like. In addition, in a front view of the heating device, a single auxiliary housing tube may be provided in the height direction of the main housing tube, or multiple auxiliary housing tubes may be provided. In a plan view of the heating device in a plane perpendicular to the vertical direction, multiple auxiliary housing tubes may be provided in a circumferential direction centered on the main housing tube, for example, three or more locations. Furthermore, in a plan view of the heating device seen from directly above, the auxiliary housing tubes may be provided radially in a circumferential direction centered on the main housing tube. Furthermore, in a plan view of the heating device seen from directly above, the outer peripheral shape of the support base may be any of a rectangle, a circle, an ellipse, and the like. Furthermore, the main housing tube may be provided in a meandering or spiral shape in addition to a structure in which it is erected in a substantially straight line in the vertical direction.

[0038] The material of the device body, the main storage tube, and the auxiliary storage tube may be a heat-resistant metal, such as cast iron, iron, steel plate, stainless steel, alloy steel, etc. The material of the gas exhaust tube and the chimney may be an iron plate, a steel plate, etc. The solid fuel may be any of charcoal briquettes, charcoal briquettes, charcoal briquettes, etc. The shape of the solid fuel may be any shape that can move from the auxiliary storage chamber to the main storage chamber under its own weight. The movement of the solid fuel under its own weight includes rolling, sliding, falling, etc. in the auxiliary storage tube. The solid fuel may be any shape, such as a sphere, a rugby ball, a cylinder, etc. The combustion device may be applied to a cooking utensil that uses solid fuel, in addition to a heating device. The phrase "solid fuel (charcoal briquettes) moving downward" may also be defined as "solid fuel (charcoal briquettes) descending." The phrase "solid fuel" may also be defined as "solid fuel." [Industrial Applicability]

[0039] The combustion device of the present disclosure can be used as a combustion device that burns solid fuel in a combustion chamber. [Explanation of symbols]

[0040] 10...heating device, 14...combustion chamber, 15...main storage chamber, 21...charcoal briquettes, 22...passageway, 24...ventilation passage, 25...flow control valve, 31...main storage pipe, 38, 39...secondary storage pipe, 40, 41...secondary storage chamber, 42, 43...supply port, 48, 49...adjustment plate, 51...exhaust passage

Claims

1. A combustion device having a combustion chamber for burning solid fuel, a main storage chamber that is provided vertically above the combustion chamber and that stores the solid fuel to be supplied to the combustion chamber; a passage provided to connect the combustion chamber and the main chamber, for discharging combustion gas generated in the combustion chamber to the main chamber and for supplying the solid fuel accommodated in the main chamber to the combustion chamber; an exhaust passage connected to the main chamber at a position vertically above the passage and configured to exhaust combustion gas from the main chamber to the outside; A combustion device having a combustion chamber.

2. The combustion device according to claim 1, The combustion device further includes an auxiliary chamber connected to the main chamber between the passage and the exhaust passage in the vertical direction, and configured to accommodate the solid fuel to be supplied to the main chamber.

3. The combustion device according to claim 2, a supply port for supplying the solid fuel contained in the auxiliary storage chamber to the main storage chamber; An adjustment plate that opens and closes the supply port; A combustion device is provided.

4. The combustion device according to claim 3, the adjusting plate closes the supply port when it comes into contact with the uppermost solid fuel among the solid fuels contained in the main storage chamber, A combustion device, wherein the adjustment plate opens the supply port when it moves away from the uppermost solid fuel among the solid fuels contained in the main storage chamber.

5. The combustion device according to claim 2, a main housing pipe having the main housing chamber and extending along a vertical direction; an auxiliary housing tube having the auxiliary housing chamber and protruding from an outer surface of the main housing tube; A combustion device having a combustion chamber.

6. The combustion device according to claim 5, In a plan view of the main housing tube in a plane perpendicular to a vertical direction, the auxiliary housing tubes are provided so as to protrude from an outer surface of the main housing tube, A combustion device, wherein the main housing pipe is disposed at a center of the plurality of sub housing pipes in a plan view of the main housing pipe in a plane perpendicular to a vertical direction.

7. The combustion device according to claim 1, an air passage for supplying air to the combustion chamber; a flow rate control valve for controlling the flow rate of air supplied from the air passage to the combustion chamber; A combustion device is provided.

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