Small smokeless heating furnace

Abstract

The small smokeless heating furnace comprises an outer cylinder, a combustion cylinder and a base, a bearing convex edge is arranged on the inner wall of the upper end of the outer cylinder, a containing convex edge is arranged at the upper end of the combustion cylinder, and after the combustion cylinder is arranged in the outer cylinder, the containing convex edge can be placed on the upper surface of the bearing convex edge; the base is provided with an annular limiting opening matched with the outer diameter of the combustion cylinder, and after the outer cylinder is placed on the upper surface of the base, the bottom of the combustion cylinder is located in the base through the annular limiting opening. The small smokeless heating furnace has the effect of being convenient to disassemble, assemble and clean.

Description

Technical Field

[0001] The present application relates to the field of heating equipment, and in particular to a small smokeless heating stove. Background Art

[0002] The smokeless heating stove solves the problem of more smoke particles caused by incomplete combustion in conventional heating stoves by performing secondary combustion at the top of the combustion chamber.

[0003] For example, the prior art discloses a smokeless heating stove with a publication number of CN114263972A, and its technical solution includes a stove body and an insulation board arranged on the bottom end face of the stove body; the surface of the insulation board and the inner wall of the stove body form a combustion chamber; the bottom end face of the stove body is connected with an air intake assembly; an air supply channel is opened through the insulation board; an insulation pipe is arranged around the outer edge side of the stove body, and an oxygen continuation channel is formed between the inner wall of the insulation pipe and the outer wall of the stove body; the oxygen continuation channel is connected to the top area of ​​the combustion chamber; the air intake assembly can supply oxygen to the combustion chamber through the air supply channel and the oxygen continuation channel.

[0004] In the above scheme, the fuel is placed in the combustion chamber for combustion, and air is supplied through the air supply channel at the bottom. Smoke particles generated by incomplete combustion are transported to the upper part of the combustion chamber through the oxygen supply channel for further combustion, thereby reducing smoke particles. However, the overall structure of the existing smokeless stove is fixed, and it is troublesome to clean after use, so it needs to be improved. Utility Model Content

[0005] In order to facilitate the cleaning of the heating stove, the present application provides a small smokeless heating stove.

[0006] A small smokeless heating stove provided in the present application adopts the following technical solution: a small smokeless heating stove, comprising an outer tube, a combustion tube and a base, the inner wall of the upper end of the outer tube is provided with a supporting convex edge, the upper end of the combustion tube is provided with a placing convex edge, after the combustion tube is placed in the outer tube, the placing convex edge can be placed on the upper surface of the supporting convex edge; the base is provided with an annular limit opening adapted to the outer diameter of the combustion tube, after the outer tube is placed on the upper surface of the base, the bottom of the combustion tube is located in the base through the annular limit opening.

[0007] By adopting the above technical scheme, after the combustion tube is sleeved in the outer tube, the supporting convex edge of the outer tube supports the placing convex edge, so that the combustion tube is installed in the outer tube. In addition, the outer tube is placed on the base, and the bottom of the combustion tube is inserted into the base through the annular limiting opening. The bottom of the inner tube is fixed through the annular limiting opening, and the outer tube is also limited at the same time, so that the outer tube and the combustion tube are stably and detachably installed on the base, so that after using the smokeless heating stove, it is convenient to disassemble and clean. At the same time, the disassembly and assembly structure is also convenient for the assembly and use of the wireless heating stove.

[0008] Preferably, a plurality of limiting guide members are arranged at intervals along the circumferential direction on the lower inner wall of the outer cylinder, and the limiting guide member includes a limiting portion and a guiding portion, the limiting portion is horizontally and radially fixed on the inner wall of the outer cylinder, the guiding portion is inclined downward and fixed on the end of the limiting portion, the angle between the limiting portion and the guiding portion is an acute angle, and the outer wall of the combustion cylinder is in contact with the limiting guide member.

[0009] By adopting the above technical solution, the outer tube is placed on the base, and then the combustion tube is placed inside the outer tube. The combustion tube is guided by the guide part on the lower side of the outer tube, so that it is convenient to put it into the base. At the same time, the combustion tube is limited by the limiting part, so as to improve the stability of the combustion tube in the outer tube.

[0010] Preferably, a plurality of first air inlet holes are provided at the bottom of the combustion tube, and a first air inlet channel communicating with the outside is formed through the base by the first air inlet holes; a plurality of second air inlet holes are provided at intervals along the circumferential direction on the upper side wall of the combustion tube, and a plurality of air inlets are opened on the side wall of the outer tube along the circumferential direction, and a second air inlet channel communicating with both the air inlet and the second air inlet holes is formed between the outer tube and the combustion tube.

[0011] By adopting the above technical solution, during the combustion of particles at the bottom of the combustion tube, air enters the combustion tube through the first air intake channel to provide oxygen for the combustion of particles. When the smoke particles generated by incomplete combustion at the bottom of the combustion tube rise with the hot air, the second air intake channel introduces external air through the second air intake hole into the upper side of the combustion tube to fully burn the smoke particles, thereby reducing smoke.

[0012] Preferably, a supporting mesh plate is provided in the combustion tube, and a plurality of supporting blocks are fixedly provided at intervals along the circumferential direction at the bottom of the combustion tube, and the supporting mesh plate is placed on the supporting blocks.

[0013] By adopting the above technical solution, a supporting mesh plate is arranged at the bottom of the combustion tube, and the particle fuel is laid on the supporting mesh plate, thereby increasing the contact area between the particle fuel and the air, so that the particle fuel can be burned more fully.

[0014] Preferably, the bottom of the base is opened, a mounting plate is arranged inside the base, the diameter of the mounting plate is smaller than the inner diameter of the base, and the mounting plate is provided with a plurality of fixing ears spaced apart along the circumferential direction; one end of the plurality of fixing ears is fixedly arranged on the inner wall of the base, and the other end is fixedly arranged on the mounting plate.

[0015] By adopting the above technical solution, a mounting plate is arranged in the base, and the mounting plate is fixed in the base through fixing ears, thereby increasing the space between the base and the outside world and also improving the stability of the base.

[0016] Preferably, a heat insulation plate is fixedly provided on the upper surface of the mounting plate, and the heat insulation plate is located below the combustion tube.

[0017] By adopting the above technical solution, the heat insulation board is arranged on the mounting plate, the thickness of the mounting plate is thickened, and the ashes above the combustion cylinder are supported while achieving a heat insulation effect.

[0018] Preferably, the upper end cover of the outer cylinder is provided with a fire gathering hood, the combustion cylinder is located below the fire gathering hood, a fire gathering outlet is provided in the middle of the fire gathering hood, and a blocking convex edge is provided upwards from the fire gathering outlet.

[0019] By adopting the above technical solution, the flame can be concentrated by the fire gathering hood to increase the temperature of the heating stove. At the same time, the barrier convex edge on the fire gathering hood can achieve a certain windproof effect.

[0020] Preferably, a plurality of through holes are provided on the edge of the upper surface of the fire collecting hood along the circumferential direction.

[0021] By adopting the above technical solution, air can be provided to the upper side of the combustion tube through the through holes arranged on the edge of the fire hood, thereby reducing the reduction of air in the combustion tube due to the fire hood and causing incomplete combustion of the particle fuel.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] After the combustion tube is sleeved in the outer tube, the supporting convex edge of the outer tube supports the placing convex edge, so that the combustion tube is installed in the outer tube. In addition, the outer tube is placed on the base, and the bottom of the combustion tube is inserted into the base through the annular limiting opening. The bottom of the inner tube is fixed through the annular limiting opening, and the outer tube is also limited at the same time, so that the outer tube and the combustion tube are stably and detachably installed on the base, so that after using the smokeless heating stove, it is convenient to disassemble and clean. At the same time, the disassembly and assembly structure is also convenient for the assembly and use of the wireless heating stove. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure after the outer tube, combustion tube and base are assembled in the embodiment of the present application.

[0025] Figure 2 It is a schematic diagram of the structure of the outer tube, the combustion tube and the base to be assembled in the embodiment of the present application.

[0026] Figure 3 It is a schematic diagram of the structure after the outer tube and the combustion tube are assembled in the embodiment of the present application.

[0027] Figure 4 It is a schematic diagram of the structure inside the combustion tube in the embodiment of the present application.

[0028] Figure 5 It is a schematic diagram of the structure of the fire condenser hood to be assembled in the embodiment of the present application.

[0029] Figure 6 It is a schematic diagram of the overall structure of the smokeless heating stove in the embodiment of the present application.

[0030] Explanation of the reference numerals: 1. outer cylinder; 11. supporting convex edge; 12. annular convex edge; 13. limiting portion; 14. guiding portion; 15. air inlet; 2. combustion cylinder; 21. placement convex edge; 22. first air inlet hole; 23. second air inlet hole; 24. oxygen supply hole; 3. base; 31. supporting table; 32. annular limiting opening; 33. supporting foot; 34. air supply hole; 35. mounting plate; 36. fixing ear; 37. heat insulation board; 4. supporting mesh plate; 41. supporting block; 5. fire hood; 51. fire outlet; 52. blocking convex edge; 53. through hole. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-6 This application is described in further detail.

[0032] The present application embodiment discloses a small smokeless heating stove. Figure 1 and Figure 2 The small smokeless heating stove includes an outer tube 1, a combustion tube 2 and a base 3. The outer tube 1 is provided with upper and lower openings, and a supporting convex edge 11 is provided on the inner wall of the upper end of the outer tube 1. The upper opening of the combustion tube 2 is provided, and a placement convex edge 21 is provided on the upper end of the combustion tube 2. After the combustion tube 2 is placed in the outer tube 1, the placement convex edge 21 can be placed on the upper surface of the supporting convex edge 11. And the height of the combustion tube 2 is greater than the height of the outer tube 1. Therefore, after the combustion tube 2 is placed in the outer tube 1, the bottom of the combustion tube 2 extends out of the outer tube 1. A supporting table 31 is provided on the upper surface of the base 3, and an annular limiting opening 32 adapted to the outer diameter of the combustion tube 2 is provided in the middle position of the supporting table 31. After the outer tube 1 is placed on the upper surface of the base 3, the bottom of the combustion tube 2 is located in the base 3 through the annular limiting opening 32. After the combustion tube 2 is sleeved in the outer tube 1, the supporting convex edge 11 of the outer tube 1 supports the placing convex edge 21, so that the combustion tube 2 is installed in the outer tube 1. In addition, the outer tube 1 is placed on the base 3, and the bottom of the combustion tube 2 is inserted into the base 3 through the annular limiting opening 32. The bottom of the inner tube is limited and fixed through the annular limiting opening 32, so that the outer tube 1 and the combustion tube 2 are stably and detachably placed on the base 3, so that after using the smokeless heating stove, it is convenient to disassemble and clean. At the same time, the disassembly and assembly structure also facilitates the assembly and use of the wireless heating stove.

[0033] Reference Figure 3, an annular convex edge 12 is provided at the bottom of the outer tube 1, and the contact area with the base 3 is increased by the annular convex edge 12, thereby improving the stability of the outer tube 1 and the base 3. In order to improve the stability of the combustion tube 2 placed in the outer tube 1, a plurality of limiting guides are provided at intervals along the circumferential direction on the inner wall of the lower side of the outer tube 1. The limiting guide includes a limiting portion 13 and a guiding portion 14. The limiting portion 13 is horizontally and radially fixedly arranged on the inner wall of the outer tube 1 and the upper surface of the annular convex edge 12, and the guiding portion 14 is tilted downward and fixedly arranged at the end of the limiting portion 13. The angle between the limiting portion 13 and the guiding portion 14 is an acute angle, and the outer wall of the combustion tube 2 contacts the limiting guide. The outer tube 1 is placed on the base 3, and then the combustion tube 2 is placed inside the outer tube 1. The combustion tube 2 is guided by the guiding portion 14 on the lower side of the outer tube 1, so as to facilitate the introduction into the base 3. At the same time, the combustion tube 2 is limited by the limiting portion 13, thereby improving the stability of the combustion tube 2 in the outer tube 1.

[0034] Reference Figure 2 and Figure 3 , the bottom of the base 3 is open, and a plurality of legs 33 are arranged at intervals along the circumferential direction at the bottom of the base 3. A plurality of air supply holes 34 are provided on the side wall of the base 3 along the circumferential direction. A plurality of first air inlet holes 22 are provided at the bottom of the combustion tube 2, and the first air inlet holes 22 form a first air inlet channel communicating with the outside through the opening space of the base 3 and the air supply holes 34. A plurality of second air inlet holes 23 are arranged at intervals along the circumferential direction on the upper side wall of the combustion tube 2, and a plurality of air inlet ports 15 are arranged on the lower side wall of the outer tube 1 along the circumferential direction, and a second air inlet channel communicating with the air inlet ports 15 and the second air inlet ports 23 is formed between the outer tube 1 and the combustion tube 2. During the combustion of particles at the bottom of the combustion tube 2, air enters the combustion tube 2 through the first air inlet channel to provide oxygen for the combustion of particles. When the smoke particles generated by the incomplete combustion at the bottom of the combustion tube 2 rise with the hot air, the second air inlet channel introduces the outside air into the upper side of the combustion tube 2 through the second air inlet ports 23 to fully burn the smoke particles, thereby reducing the smoke. At the same time, in order to increase the air intake in the combustion tube 2, oxygen supply holes 24 are also provided in the middle and lower parts of the combustion tube 2 along the circumferential direction.

[0035] Reference Figure 2A mounting plate 35 is provided inside the base 3. The diameter of the mounting plate 35 is smaller than the inner diameter of the base 3. The mounting plate 35 is provided with a plurality of fixing ears 36 at intervals along the circumferential direction. One end of the plurality of fixing ears 36 is fixedly provided on the inner wall of the base 3, and the other end is fixedly provided on the mounting plate 35. A heat insulation plate 37 is fixedly provided on the upper surface of the mounting plate 35. The heat insulation plate 37 is located below the combustion tube 2. The mounting plate 35 is provided inside the base 3 and is fixed inside the base 3 through the fixing ears 36. This improves the stability of the base 3 while increasing the space between the base 3 and the outside world. At the same time, the heat insulation plate 37 on the mounting plate 35 thickens the thickness of the mounting plate 35, supports the ashes above the combustion tube 2, and has a heat insulation effect.

[0036] Reference Figure 4 A supporting mesh plate 4 is arranged in the combustion tube 2, and a plurality of supporting blocks 41 are arranged at intervals along the circumferential direction at the bottom of the combustion tube 2, and the supporting mesh plate 4 is placed on the supporting blocks 41. The supporting mesh plate 4 is arranged at the bottom of the combustion tube 2, and the pellet fuel is laid on the supporting mesh plate 4, thereby increasing the contact area between the pellet fuel and the air, so that the pellet fuel can be burned more fully.

[0037] Reference Figure 5 and Figure 6 The upper end cover of the outer tube 1 is provided with a fire gathering hood 5, the outer diameter of the fire gathering hood 5 is the same as the inner diameter of the outer tube 1, the supporting convex edge 11 is located below the opening of the outer tube 1, and the height of the supporting convex edge 11 and the opening of the outer tube 1 is the same as the height of the fire gathering hood 5. The combustion tube 2 is located below the fire gathering hood 5, and a fire gathering outlet 51 is provided in the middle of the fire gathering hood 5, and a blocking convex edge 52 is provided upwardly of the fire gathering outlet 51. The fire gathering hood 5 can concentrate the flame and increase the temperature of the heating stove. At the same time, the blocking convex edge 52 on the fire gathering hood 5 can play a certain windproof effect. Further, the upper surface edge of the fire gathering hood 5 is provided with a plurality of through holes 53 in the circumferential direction. Through the through holes 53 provided on the edge of the fire gathering hood 5, air can be provided to the upper side of the combustion tube 2, thereby reducing the reduction of air in the combustion tube 2 due to the fire gathering hood 5, resulting in incomplete combustion of the particle fuel.

[0038] The implementation principle of a small smokeless heating stove in an embodiment of the present application is as follows: after the combustion tube 2 is sleeved in the outer tube 1, the supporting convex edge 11 of the outer tube 1 supports the placing convex edge 21, so that the combustion tube 2 is installed in the outer tube 1. In addition, the outer tube 1 is placed on the base 3, and the bottom of the combustion tube 2 is inserted into the base 3 through the annular limiting opening 32. The bottom of the inner tube is fixed by the annular limiting opening 32, and the outer tube 1 is also limited at the same time, so that the outer tube 1 and the combustion tube 2 are stably and detachably installed on the base 3, so that after using the smokeless heating stove, it is convenient to disassemble and clean. At the same time, the disassembly and assembly structure also facilitates the assembly and use of the wireless heating stove.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A small smokeless heating stove, characterized in that: The invention comprises an outer tube (1), a combustion tube (2) and a base (3); the inner wall of the upper end of the outer tube (1) is provided with a supporting convex edge (11); the upper end of the combustion tube (2) is provided with a placing convex edge (21); after the combustion tube (2) is placed in the outer tube (1), the placing convex edge (21) can be placed on the upper surface of the supporting convex edge (11); the base (3) is provided with an annular limiting opening (32) matched with the outer diameter of the combustion tube (2); after the outer tube (1) is placed on the upper surface of the base (3), the bottom of the combustion tube (2) is located in the base (3) through the annular limiting opening (32).

2. The small smokeless heating stove according to claim 1, characterized in that: A plurality of limiting guide members are arranged at intervals along the circumferential direction on the lower inner wall of the outer cylinder (1), and the limiting guide member comprises a limiting portion (13) and a guiding portion (14). The limiting portion (13) is fixedly arranged horizontally and radially on the inner wall of the outer cylinder (1), and the guiding portion (14) is fixedly arranged obliquely downward on the end of the limiting portion (13). The angle between the limiting portion (13) and the guiding portion (14) is an acute angle, and the outer wall of the combustion cylinder (2) contacts the limiting guide member.

3. The small smokeless heating stove according to claim 1, characterized in that: The bottom of the combustion tube (2) is provided with a plurality of first air inlet holes (22), and the first air inlet holes (22) form a first air inlet passage communicating with the outside through the base (3); the upper side wall of the combustion tube (2) is provided with a plurality of second air inlet holes (23) at intervals along the circumferential direction, the side wall of the outer tube (1) is provided with a plurality of air inlet ports (15) along the circumferential direction, and a second air inlet passage communicating with both the air inlet ports (15) and the second air inlet holes (23) is formed between the outer tube (1) and the combustion tube (2).

4. The small smokeless heating stove according to claim 1, characterized in that: A supporting mesh plate (4) is arranged inside the combustion tube (2), and a plurality of supporting blocks (41) are fixedly arranged at intervals along the circumferential direction at the bottom of the combustion tube (2), and the supporting mesh plate (4) is placed on the supporting blocks (41).

5. The small smokeless heating stove according to claim 1 is characterized in that: The base (3) is provided with an opening at the bottom, a mounting plate (35) is provided inside the base (3), the diameter of the mounting plate (35) is smaller than the inner diameter of the base (3), and the mounting plate (35) is provided with a plurality of fixing ears (36) at intervals along the circumferential direction; one end of the plurality of fixing ears (36) is fixedly provided on the inner wall of the base (3), and the other end is fixedly provided on the mounting plate (35).

6. The small smokeless heating stove according to claim 5, characterized in that: A heat insulation board (37) is fixedly arranged on the upper surface of the mounting plate (35), and the heat insulation board (37) is located below the combustion cylinder (2).

7. The small smokeless heating stove according to claim 1, characterized in that: The upper end cover of the outer cylinder (1) is provided with a fire gathering hood (5), the combustion cylinder (2) is located below the fire gathering hood (5), and a fire gathering outlet (51) is provided in the middle of the fire gathering hood (5).

8. The small smokeless heating stove according to claim 7, characterized in that: The edge of the upper surface of the fire collecting cover (5) is provided with a plurality of through holes (53) along the circumferential direction.

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