Flame collection type combustion box

Abstract

The utility model discloses a flame collecting type combustion box which comprises a combustion cavity and an air supply cavity, the combustion cavity is located on the upper side of the air supply cavity, the combustion cavity and the air supply cavity are separated through a combustion bottom plate, a plurality of ventilation holes are formed in the plate face of the combustion bottom plate, a feeding port is formed in the side wall of the combustion cavity, and an air supply port is formed in the side wall of the air supply cavity. The middle of the combustion bottom plate is concave downwards, and the air inlet direction of the ventilation holes is folded towards the middle of the combustion cavity. According to the device, the oxygen supply speed at the fuel accumulation position and the flame position can be increased, it is guaranteed that combustion is more sufficient, flames can be driven to swing through the folded concentrated wind direction, the flames are more attractive in shape, a certain indoor decoration effect is achieved, the flames are more concentrated, and smoke generated by combustion is less.

Description

Technical Field

[0001] The utility model relates to the technical field of combustion furnaces, and particularly relates to a flame - concentrating combustion box. Background Art

[0002] The heating furnace uses biomass formed fuel, that is, biomass particles as fuel. Biomass particles are made from waste materials such as wood chips, straws, rice husks, and barks in agricultural and forestry processing. Through processing, they are solidified into high - density pellet fuels. Through the air supply by a blower, the controllability of the furnace temperature and the air intake volume is achieved, enabling the fuel to be fully gasified and burned in the furnace chamber.

[0003] As a part of the heating furnace, most of the existing internal structures of the combustion box have unreasonable air inlet directions, resulting in insufficient combustion, the flame shape is not concentrated and beautiful enough, and more flue gas is generated during combustion. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a flame - concentrating combustion box with a reasonable air inlet direction, more sufficient combustion, a concentrated and beautiful flame shape, and less flue gas generated during combustion.

[0005] To solve the above - mentioned technical problem, the utility model provides a flame - concentrating combustion box, which includes a combustion chamber and an air supply chamber. The combustion chamber is located above the air supply chamber, and the combustion chamber and the air supply chamber are separated by a combustion bottom plate. A plurality of ventilation holes are opened on the plate surface of the combustion bottom plate. The side wall of the combustion chamber is provided with a feed port, and the side wall of the air supply chamber is provided with an air supply port. The combustion bottom plate is in a shape with a concave middle part, and the air inlet direction of the ventilation holes converges towards the middle of the combustion chamber.

[0006] In order to improve the guiding and concentrating direction of the ventilation holes, the combustion bottom plate is a circular arc - shaped plate with a lower middle part and higher ends.

[0007] In order to improve the guiding and concentrating direction of the ventilation holes, in another structural design of the combustion bottom plate, the combustion bottom plate includes a flat plate in the middle and inclined plates at both ends of the flat plate that incline towards both sides.

[0008] In order to enable the combustion residues on the combustion bottom plate to better fall through the ventilation holes, one side of the combustion bottom plate close to the feed port is lower than the other side.

[0009] In order to improve the guiding and concentrating direction of the ventilation holes, in another structural design of the combustion bottom plate, the combustion bottom plate is a bucket - shaped structure with a concave middle part and higher surrounding parts.

[0010] In order to facilitate the cleaning of the inside of the air supply chamber, a detachable bottom plate is provided at the bottom of the air supply chamber.

[0011] For the convenience of installing the bottom plate, L-shaped supporting plates for holding the bottom plate are respectively provided at the bottoms of two opposite side walls of the air supply chamber, and gaps for installing the bottom plate are respectively formed between the bottoms of the two opposite side walls and the supporting plates.

[0012] To facilitate closing and opening the combustion chamber, a chamber door is provided on the front side of the combustion chamber.

[0013] Preferably, the upper part of the chamber door is hingedly connected to the upper side of the combustion chamber through a rotating shaft.

[0014] To facilitate igniting the fuel, a hot air inlet hole is provided on the side wall of the combustion chamber.

[0015] Furthermore, the feed inlet is opened at the central position of the rear side wall of the combustion chamber, and the hot air inlet hole is opened at a position on the lower part of the rear side wall of the combustion chamber and biased towards one side.

[0016] In summary, when the present utility model is in use, the fuel is fed into the combustion chamber through the feed structure via the feed inlet, the hot air inlet hole conveys hot air to ignite the fuel, the air supply chamber sends air into the combustion chamber through the ventilation holes, providing sufficient oxygen for the combustion of the fuel. At the same time, the air inlet direction of the ventilation holes is more converged and concentrated towards the combustion flame, which can not only improve the oxygen supply speed at the fuel accumulation area and the flame area, ensure more complete combustion, but also drive the swing of the flame through the converged and concentrated air flow direction, making the shape of the flame more beautiful, having a certain indoor decoration effect, the flame is more concentrated, and the smoke generated by combustion is less. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following further describes the present utility model in detail with reference to the drawings and specific embodiments:

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a front-view structural schematic diagram of the first embodiment of the corresponding combustion bottom plate of the present utility model;

[0020] Figure 3 is the sectional structural schematic diagram along A-A in Figure 2 ;

[0021] Figure 4 is a rear-view structural schematic diagram of the present utility model;

[0022] Figure 5 is a front-view structural schematic diagram of the second embodiment of the corresponding combustion bottom plate of the present utility model;

[0023] Figure 6 is a structural schematic diagram of the present utility model with the chamber door installed. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Referring to the attachedFigures 1-6 The flame-gathering combustion box comprises a combustion chamber 1 and an air supply chamber 2, the combustion chamber 1 is located on the upper side of the air supply chamber 2, the combustion chamber 1 and the air supply chamber 2 are separated by a combustion bottom plate 3, a plurality of ventilation holes 4 are arranged on the surface of the combustion bottom plate 3, and the ventilation holes are preferably evenly distributed. A feed port 5 and a hot air inlet hole 6 are arranged on the rear side wall of the combustion chamber, the feed port is preferably arranged in the center of the rear side wall of the combustion chamber, the hot air inlet hole 6 is arranged at a position deviated to one side of the lower part of the rear side wall of the combustion chamber, an ignition rod is arranged at the outer side of the hot air inlet hole, and the hot air generated by the ignition rod enters the combustion chamber through the hot air inlet hole under the action of negative pressure, and the hot air reaching the ignition point of the fuel burns the biomass fuel in the combustion box, and the hot air inlet hole 6 is arranged at a position deviated to one side of the lower part of the rear side wall of the combustion chamber, which can not only ensure that the hot air can contact the fuel on the combustion bottom plate well, but also prevent the ash from entering the hot air inlet hole during the combustion of the fuel.

[0025] refer to Figure 2 An air supply port 7 is provided on the side wall of the air supply chamber 2, and the air supply device of the combustion furnace injects air into the air supply chamber 2 from the air supply port 7, and then enters the combustion chamber through the ventilation hole 4, so that the fuel in the combustion chamber has sufficient oxygen for more complete combustion.

[0026] The combustion bottom plate 3 is concave in the middle. This design can achieve a more concentrated air inlet direction through the ventilation holes toward the combustion flame, which can not only increase the oxygen supply rate at the fuel accumulation point to ensure more complete combustion, but also drive the swing of the flame through the concentrated wind direction, making the flame shape more beautiful and the flame more concentrated.

[0027] refer to Figure 2 and 3 In the first embodiment of the combustion base plate 3, the combustion base plate is an arc-shaped plate with a lower middle and higher ends, and the rear side of the arc-shaped plate is lower than the front side. This design can realize that the air inlet direction of the ventilation holes is all directed to the center line direction of the cylinder where the arc-shaped plate is located, and the air supply direction is relatively concentrated. If there is any residue on the combustion base plate, it can also be taken out from the front side of the combustion chamber by the user. The design that the rear side of the arc-shaped plate is lower than the front side allows the residue to fall through the ventilation holes better.

[0028] refer to Figure 5 The second embodiment of the combustion bottom plate 3 includes a flat plate 301 in the middle and inclined plates 302 at both ends of the flat plate that are inclined to both sides. The combustion bottom plate in this embodiment is an inverted trapezoidal structure. The flat plate is used to receive the fuel entering from the feed port 5. It can be laid relatively flat on the flat plate position. The contact surface between the fuel and the air is large. The ventilation holes on the inclined plate can also achieve a more concentrated air supply direction pointing to the flame position, which is sufficient for combustion and beautiful flames. The rear side of the flat plate 301 is lower than the front side, so that the residue can fall through the ventilation holes better.

[0029] The third embodiment of the combustion bottom plate 3, the combustion bottom plate is in the shape of a bucket with a concave middle and higher around, this design can achieve the concentration of fuel in the middle position of the combustion bottom plate, the ventilation holes are distributed in a ring around the flame and blow obliquely upward towards the flame, the flame burns more fully, the flame is more concentrated and beautiful, the combustion bottom plate can be a spherical surface, or an inverted frustum of a cone or a multi-prism frustum can also be used, the drawings here are not shown.

[0030] Reference Figure 5 , a detachable bottom plate 8 is provided at the bottom of the air supply chamber 2, L-shaped support plates 9 are respectively provided at the bottoms of two opposite side walls of the air supply chamber 2, and gaps for installing the bottom plate 8 are respectively formed between the bottoms of the two opposite side walls and the support plates 9. Pulling out the bottom plate 8 can be used to open the air supply chamber 2 for cleaning the inside of the air supply chamber.

[0031] Reference Figure 6 , a chamber door 10 is provided on the front side of the combustion chamber 1, the upper part of the chamber door 10 is hinged to the upper side of the combustion chamber 1 through a rotating shaft. Lowering the chamber door can block the front side of the combustion chamber, and flipping the chamber door upward can open the combustion chamber, which is convenient for the user to observe the combustion situation in the combustion chamber and also convenient for cleaning the residues in the combustion chamber.

[0032] When the utility model is in use, the fuel is fed into the combustion chamber through the feeding structure via the feeding port, the hot air inlet hole conveys hot air to ignite the fuel, the air supply chamber sends air into the combustion chamber through the ventilation holes, providing sufficient oxygen for the combustion of the fuel. At the same time, the air inlet direction of the ventilation holes is more converged and concentrated towards the combustion flame, which can not only improve the oxygen supply speed at the fuel accumulation area and the flame area, ensure more complete combustion, but also drive the swing of the flame through the converged and concentrated air flow direction, making the shape of the flame more beautiful, the flame more concentrated, and the smoke generated by combustion less.

[0033] Of course, the above description is not a limitation of the utility model, and the utility model is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the essence of the utility model should also belong to the protection scope of the utility model.

Claims

1. A flame-collecting combustion box, characterized in that: It includes a combustion chamber (1) and an air supply chamber (2). The combustion chamber (1) is located above the air supply chamber (2). The combustion chamber (1) and the air supply chamber (2) are separated by a combustion bottom plate (3). Multiple ventilation holes (4) are formed on the plate surface of the combustion bottom plate (3). A feed inlet (5) is provided on the side wall of the combustion chamber. An air supply port (7) is formed on the side wall of the air supply chamber (2). The combustion bottom plate (3) is concave in the middle and the air inlet direction of the ventilation holes converges towards the middle of the combustion chamber.

2. The kind of flame-collecting combustion box as described in claim 1, characterized in that : The combustion bottom plate is a circular arc-shaped plate that is low in the middle and high at both ends.

3. The kind of flame-collecting combustion box as described in claim 1, characterized in that : The combustion bottom plate includes a flat plate (301) in the middle and inclined plates (302) located at both ends of the flat plate and inclined towards both sides.

4. The kind of flame-collecting combustion box as described in claim 2, characterized in that : One side of the combustion bottom plate (3) close to the feed inlet is lower than the other side.

5. The integrated flame combustion box according to claim 1, wherein : The combustion bottom plate is a bucket-shaped structure that is concave downward in the middle and higher around.

6. The kind of flame-collecting combustion box according to claim 1, characterized in that : A detachable bottom plate (8) is provided at the bottom of the air supply chamber (2).

7. The flame-collecting combustion box according to claim 1, characterized in that : L-shaped support plates (9) for holding the bottom plate are respectively provided at the bottoms of two opposite side walls of the air supply chamber (2). A gap for installing the bottom plate (8) is respectively formed between the bottom ends of the two opposite side walls and the support plates (9).

8. The integrated flame combustion box according to claim 1, characterized in that : A chamber door (10) is provided at the front side of the combustion chamber (1). The upper part of the chamber door (10) is hinged to the upper side of the combustion chamber (1) through a rotating shaft.

9. A flame-collecting combustion box according to any one of claims 1 to 8, characterized in that : A hot air inlet hole (6) is provided on the side wall of the combustion chamber.

10. The kind of flame-collecting combustion box as described in claim 9, characterized in that : The feed inlet is opened at the middle position of the rear side wall of the combustion chamber, and the hot air inlet hole (6) is opened at a position on the lower part of the rear side wall of the combustion chamber and biased towards one side.

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