Small particle heating furnace

Abstract

The utility model relates to a small particle heating furnace which comprises a base, an outer cylinder and a combustion cylinder, the outer cylinder is placed on the base, the combustion cylinder is installed in the outer cylinder, the bottom of the combustion cylinder is provided with a first air inlet channel communicated with the outside, and a second air inlet channel communicated with the outside is arranged between the outer cylinder and the combustion cylinder. And a plurality of air inlet holes are formed in the side wall of the upper side of the combustion cylinder in the circumferential direction at intervals and communicate with the second air inlet through hole, and air guide grooves which are obliquely sunken towards the interior of the combustion cylinder are formed in the edges of orifices in the same sides of the air inlet holes correspondingly. The device has the effects of improving the flame heat and the ornamental value.

Description

Technical Field

[0001] This application relates to the technical field of heating equipment, and particularly to a small particle heating stove. Background Art

[0002] The particle heating stove achieves the heating effect by burning biomass particles. For example, the existing smokeless heating stove for both wood and particle fuels with the publication number CN220582499U includes an outer cylinder and a combustion cylinder. The bottom of the combustion cylinder has a first air inlet channel communicating with the outside. A supporting mesh plate communicating with the first air inlet channel is placed inside the combustion cylinder. The combustion cylinder is fixedly arranged inside the outer cylinder. There is a second air inlet channel communicating with the outside between the outer cylinder and the combustion cylinder. The air outlet end of the second air inlet channel communicates with the upper opening of the combustion cylinder.

[0003] The above solution can make the particle fuel burn more fully. However, for a small particle stove, it only has the advantage of improving the combustion efficiency of particles and completely does not have the function of improving the ornamental value of the flame, and cannot meet the current requirements of people for the ornamental value of the heating stove. Therefore, it needs to be improved. Utility Model Content

[0004] In order to improve the heat and ornamental value of the flame, this application provides a small particle heating stove.

[0005] A small particle heating stove provided by this application adopts the following technical solution: A small particle heating stove includes a base, an outer cylinder, and a combustion cylinder. The outer cylinder is placed on the base, and the combustion cylinder is installed inside the outer cylinder. The bottom of the combustion cylinder has a first air inlet channel communicating with the outside. There is a second air inlet channel communicating with the outside between the outer cylinder and the combustion cylinder. A plurality of air inlet holes are arranged at intervals along the circumferential direction on the side wall of the upper side of the combustion cylinder. The plurality of air inlet holes communicate with the second air inlet through-hole. The orifice edges on the same side of the plurality of air inlet holes are all provided with air guiding grooves that are inclined and recessed into the combustion cylinder.

[0006] By adopting the above technical solution, the particle fuel burns inside the combustion cylinder. The outside air enters the bottom of the combustion cylinder through the first air inlet channel to provide oxygen for the particle fuel. At the same time, the outside air is introduced into the upper side of the combustion cylinder through the second air inlet channel. Through the plurality of air inlet holes arranged in the circumferential direction on the upper side of the combustion cylinder, the air passing through the second air inlet channel enters the upper side inside the combustion cylinder through the air inlet holes, thereby further burning the unburned soot particles. At the same time, since the air guiding grooves that are inclined and recessed into the combustion cylinder are arranged on the same side of the plurality of air inlet holes arranged along the circumferential direction of the combustion cylinder, the air entering the combustion cylinder rotates, thereby driving the flame to rotate centrally, thereby improving the heating effect and ornamental value of the flame.

[0007] Preferably, a windproof fire gathering hood is provided at the upper opening of the combustion tube, a fire gathering port is provided in the middle of the windproof fire gathering hood, and the windproof fire gathering hood closes upward in an arc from the edge to the fire gathering port.

[0008] By adopting the above technical solution, since the wind force of the rotating air formed by the air inlet hole is relatively small, the windproof and fire-collecting hood arranged on the upper opening of the combustion tube can reduce the interference of the external air from the upper opening of the combustion tube to the rotating flame in the combustion tube, thereby improving the stability of the flame rotation.

[0009] Preferably, a horizontal convex edge is provided outwardly at the upper edge of the combustion tube, and the outer tube is provided with upper and lower openings. A supporting ring is placed on the edge of the upper opening of the outer tube, and a supporting convex edge is sunken below the supporting ring to place the horizontal convex edge. A placement table is provided on the upper surface of the base for the outer tube to be placed, and a clearance opening is provided in the middle position of the placement table. A limiting convex edge is provided upwardly at the edge of the clearance opening, and the side wall of the limiting convex edge contacts the side wall of the lower opening of the outer tube.

[0010] By adopting the above technical solution, the outer cylinder is placed on the placement table on the base, and the inner wall of the outer cylinder is limited by the limiting convex edge, so that the outer cylinder is stably placed on the base. When the combustion cylinder is sleeved in the outer cylinder, the horizontal convex edge is placed on the supporting convex edge on the supporting ring, thereby facilitating the disassembly and assembly of the outer cylinder, the combustion cylinder and the base, and facilitating the cleaning of the combustion cylinder.

[0011] Preferably, a plurality of vertical limiting grooves are arranged at intervals along the circumferential direction inside the outer cylinder, and a limiting block inserted into the limiting groove is arranged on the side wall of the supporting ring.

[0012] By adopting the above technical solution and providing the limiting groove inside the outer tube, the stability of the support ring placed inside the outer tube is improved, thereby improving the stability of the combustion tube placed on the support ring.

[0013] Preferably, the bottom of the combustion tube has a plurality of vents, and the vent cover is provided with a baffle angle plate, and the air inlet opening of the baffle angle plate is staggered with the vent.

[0014] By adopting the above technical solution, the baffle angle plate is arranged above the air vent, which can prevent the burning of particles or the ashes produced from blocking the air vent and affecting the air supply to the particle fuel above the combustion tube.

[0015] Preferably, a heat-insulating support plate is provided below the combustion tube, a plurality of connecting rods are vertically fixed at intervals on the upper surface of the heat-insulating support plate, and the upper ends of the connecting rods are fixedly connected to the bottom of the combustion tube.

[0016] By adopting the above technical solution, the heat insulation support plate arranged below the combustion cylinder can support the ashes falling from the combustion cylinder, and at the same time can insulate the base, thereby reducing the temperature of the base.

[0017] Preferably, a gas guide plate is provided at the relief opening of the base. A gas guide hole is provided at the middle position of the gas guide plate, and a plurality of air supply holes are provided on the circumferential side wall of the base.

[0018] By adopting the above technical solution, the outside air enters the inside of the base through the air supply holes, and then concentrates and enters the outer cylinder through the gas guide hole, and then is shunted into the bottom of the combustion cylinder and the upper part inside the combustion cylinder.

[0019] Preferably, the outer cylinder is made of magnesium oxide material.

[0020] By adopting the above technical solution, the outer cylinder made of magnesium oxide material has good heat insulation and fire resistance effects.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] The pellet fuel burns in the combustion cylinder. The outside air enters the first air intake passage through the base. The first air intake passage guides the air to the bottom inside the combustion cylinder to provide the oxygen required for the combustion of the pellet fuel. At the same time, the outside air entering the base is guided to the upper side of the combustion cylinder through the second air intake passage. Through a plurality of air intake holes arranged in the circumferential direction on the upper side of the combustion cylinder, the unburned soot particles are further burned. At the same time, since a plurality of air intake holes arranged along the circumferential direction of the combustion cylinder are provided with air guide grooves that are inclined and recessed into the combustion cylinder on the same side, the air entering the upper side inside the combustion cylinder rotates, thereby driving the flame to rotate centrally, thereby improving the heating effect and ornamental value of the flame. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic installation structure diagram of the base, the outer cylinder and the combustion cylinder in the embodiment of the present application.

[0024] Figure 2 is a schematic structure diagram of the combustion cylinder, the supporting ring, the outer cylinder and the base to be assembled in the embodiment of the present application.

[0025] Figure 3 is a schematic structure diagram of the combustion cylinder in the embodiment of the present application.

[0026] Figure 4 is a schematic overall structure diagram of the heating furnace in the embodiment of the present application.

[0027] Figure 5 is a schematic structure diagram inside the combustion cylinder in the embodiment of the present application.

[0028] Figure 6It is a schematic diagram of the internal structure of the heating stove after vertical sectioning in the embodiment of the present application.

[0029] Explanation of the reference numerals in the accompanying drawings: 1. Base; 11. Placement table; 12. Make way opening; 13. Limiting convex edge; 14. Air guide plate; 141. Air guide hole; 15. Air supply hole; 2. Outer tube; 21. Limiting groove; 3. Combustion tube; 31. Horizontal convex edge; 32. Air inlet hole; 33. Air guide groove; 34. Air vent; 35. Partitioning angle plate; 36. Insulating support plate; 37. Connecting rod; 4. Supporting ring; 41. Supporting convex edge; 42. Limiting block; 5. Windproof fire hood; 51. Fire condensing opening. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-6 This application is described in further detail.

[0031] The present application embodiment discloses a small pellet heating stove. Figure 1 and Figure 2 The small pellet heating stove includes a base 1, an outer tube 2, and a combustion tube 3. The outer tube 2 is placed on the base 1, and the combustion tube 3 is sleeved in the outer tube 2, so as to realize the detachable installation of the outer tube 2, the combustion tube 3 and the base 1. Specifically, the outer tube 2 is opened up and down, and a supporting ring 4 is placed on the edge of the upper opening of the outer tube 2. The supporting ring 4 is sunken and provided with an annular supporting convex edge 41. The supporting convex edge 41 is in a horizontal state. The upper edge of the combustion tube 3 is provided with an annular horizontal convex edge 31 outward. After the combustion tube 3 is placed on the outer tube 2, the supporting convex edge 41 can support the horizontal convex edge 31. A horizontal placement table 11 is provided on the upper surface of the base 1, and the placement table 11 is arranged in an annular shape. The placement table 11 is for the bottom of the outer tube 2 to be placed. There is a clearance opening 12 in the middle of the annular placement table 11, and an annular limiting convex edge 13 is arranged upward on the edge of the clearance opening 12. After the outer cylinder 2 is placed on the placement table 11, the side wall of the limiting convex edge 13 contacts the side wall of the lower opening of the outer cylinder 2, thereby limiting and fixing the outer cylinder 2. The outer cylinder 2 in this embodiment is made of magnesium oxide, which has good heat insulation and fire resistance. In other embodiments, the outer cylinder 2 can also be made of metal material.

[0032] Reference Figure 2 In order to improve the stability of the support ring 4 placed at the opening of the outer cylinder 2, a plurality of vertical limiting grooves 21 are arranged at intervals along the circumferential direction on the inner wall of the upper opening of the outer cylinder 2, and a limiting block 42 that can be inserted into the limiting groove 21 is arranged on the outer wall of the support ring 4. In this embodiment, three limiting blocks 42 and three limiting grooves 21 are arranged respectively.

[0033] Reference Figure 2 and Figure 3The bottom of the combustion tube 3 has a first air inlet passage communicating with the outside through the base 1, and the outer tube 2 and the combustion tube 3 have a second air inlet passage communicating with the outside through the base 1. The side wall on the upper side of the combustion tube 3 is provided with a plurality of air inlet holes 32 at intervals along the circumferential direction, and the plurality of air inlet holes 32 are communicated with the second air inlet through hole, and the opening edges on the same side of the plurality of air inlet holes 32 are all provided with air guide grooves 33 inclined and recessed into the combustion tube 3. The air entering the upper side of the combustion tube 3 is rotated through the air guide grooves 33, thereby driving the flame to rotate in a concentrated manner, thereby improving the heating effect and the ornamental quality of the flame.

[0034] Reference Figure 3 and Figure 4 Since the wind force of the rotating air formed by the multiple air inlet holes 32 and air guide grooves 33 arranged along the combustion tube 3 is relatively small, and the air inlet holes 32 are close to the opening of the combustion tube 3, they are easily affected by the flow of external air, resulting in instability of the formed rotating flame. For this reason, a windproof and fire-gathering hood 5 is covered at the upper opening of the combustion tube 3, and a fire-gathering port 51 is provided in the middle position of the windproof and fire-gathering hood 5. The windproof and fire-gathering hood 5 is arranged to close upward in an arc from the edge to the position of the fire-gathering port 51. Through the blocking of the windproof and fire-gathering hood 5, the interference of external air from the upper opening of the combustion tube 3 to the rotating flame in the combustion tube 3 can be reduced, thereby improving the stability of the flame rotation.

[0035] Reference Figure 5 and Figure 6 The bottom of the combustion tube 3 has a plurality of vents 34, and the vents 34 are covered with a baffle plate 35, and the air inlet opening of the baffle plate 35 is staggered with the vents 34. The baffle plate 35 arranged above the vents 34 can prevent the ash generated by the burning of particles or from blocking the vents 34, thereby affecting the air supply to the particle fuel on the upper part of the combustion tube 3.

[0036] An insulating support plate 36 is provided below the combustion tube 3, and a plurality of connecting rods 37 are fixed vertically at intervals on the upper surface of the insulating support plate 36, and the upper ends of the connecting rods 37 are fixedly connected to the bottom of the combustion tube 3. The insulating support plate 36 provided below the combustion tube 3 can support the ashes dropped from the combustion tube 3, and can also insulate the base 1, thereby reducing the temperature of the base 1. An air guide plate 14 is provided at the yield opening 12 of the base 1, and an air guide hole 141 is provided in the middle of the air guide plate 14, and a plurality of air supply holes 15 are provided on the circumferential side wall of the base 1.

[0037] In this embodiment, the outside air of the first air inlet passage enters the base 1 through the air supply hole 15, then enters the bottom of the outer tube 2 through the air guide hole 141, and finally enters the bottom of the combustion tube 3 through the air vent 34. The outside air of the second air inlet passage enters the base 1 through the air supply hole 15, then enters the bottom of the outer tube 2 through the air guide hole 141, and then is guided along the space between the combustion tube 3 and the outer tube 2 to the air inlet hole 32 and enters the combustion tube 3.

[0038] The implementation principle of a small particle heating furnace in an embodiment of this application is as follows: The particulate fuel burns in the combustion cylinder 3, and the outside air enters the first air intake channel through the base 1. The first air intake channel guides the air to the bottom inside the combustion cylinder 3 to supply the oxygen required for the combustion of the particulate fuel. At the same time, the outside air entering the base 1 is guided to the upper side of the combustion cylinder 3 through the second air intake channel, and further burns the unburned soot particles through a plurality of air intake holes 32 arranged in the circumferential direction on the upper side of the combustion cylinder 3. At the same time, since a plurality of air intake holes 32 arranged along the circumferential direction of the combustion cylinder 3 are provided with air guiding grooves 33 that are inclined and recessed towards the inside of the combustion cylinder 3 on the same side, the air entering the upper side inside the combustion cylinder 3 rotates, thereby driving the flame to rotate centrally, thereby improving the heating effect and ornamental value of the flame.

[0039] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A small pellet heating stove, characterized in that: The invention comprises a base (1), an outer tube (2) and a combustion tube (3), wherein the outer tube (2) is placed on the base (1), and the combustion tube (3) is installed in the outer tube (2). The bottom of the combustion tube (3) has a first air intake passage communicating with the outside, and a second air intake passage communicating with the outside is provided between the outer tube (2) and the combustion tube (3). A plurality of air intake holes (32) are arranged on the side wall on the upper side of the combustion tube (3) at intervals in the circumferential direction, and the plurality of air intake holes (32) are communicated with the second air intake passage. The opening edges of the plurality of air intake holes (32) on the same side are all provided with air guide grooves (33) inclined and recessed toward the inside of the combustion tube (3).

2. The small pellet heating stove according to claim 1, characterized in that: The upper opening of the combustion tube (3) is covered with a windproof fire gathering cover (5), a fire gathering opening (51) is provided in the middle of the windproof fire gathering cover (5), and the windproof fire gathering cover (5) is closed upward in an arc from the edge to the fire gathering opening (51).

3. The small pellet heating stove according to claim 1 is characterized in that: The upper edge of the combustion tube (3) is provided with a horizontal convex edge (31) facing outwards, the outer tube (2) is provided with upper and lower openings, a supporting ring (4) is placed on the edge of the upper opening of the outer tube (2), and the supporting ring (4) is provided with a supporting convex edge (41) for placing the horizontal convex edge (31), the upper surface of the base (1) is provided with a placement table (11) for placing the outer tube (2), a clearance opening (12) is provided in the middle of the placement table (11), and a limiting convex edge (13) is provided on the edge of the limiting convex edge (13) facing upwards, and the side wall of the limiting convex edge (13) contacts the side wall of the lower opening of the outer tube (2).

4. The small pellet heating stove according to claim 3 is characterized in that: A plurality of vertical limiting grooves (21) are arranged at intervals along the circumferential direction inside the outer cylinder (2), and a limiting block (42) inserted into the limiting groove (21) is arranged on the side wall of the supporting ring (4).

5. The small pellet heating stove according to claim 1 is characterized in that: The bottom of the combustion tube (3) is provided with a plurality of air vents (34), and the air vents (34) are covered with baffle angle plates (35), and the air inlet openings of the baffle angle plates (35) are staggered with the air vents (34).

6. The small pellet heating stove according to claim 1, characterized in that: A heat-insulating support plate (36) is provided below the combustion tube (3), and a plurality of connecting rods (37) are vertically fixed at intervals on the upper surface of the heat-insulating support plate (36), and the upper ends of the connecting rods (37) are fixedly connected to the bottom of the combustion tube (3).

7. The small pellet heating stove according to claim 3 is characterized in that: An air guide plate (14) is provided at the clearance opening (12) of the base (1), an air guide hole (141) is provided in the middle of the air guide plate (14), and a plurality of air supply holes (15) are provided on the circumferential side wall of the base (1).

8. The small pellet heating stove according to claim 1, characterized in that: The outer cylinder (2) is made of magnesium oxide.

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