Air supply mechanism of biomass furnace

Abstract

The utility model discloses an air supply mechanism of a biomass furnace, which belongs to the technical field of furnace equipment and is characterized in that air is supplied to a furnace core and a combustion chamber through a fan and air pipes, the air pipes are arranged on two sides of the furnace core, and the air pipes are provided with ignition pipes connected to the furnace core; the furnace core is of a double-layer hollow structure, an air hole is formed in the inner layer wall, the ignition pipe extends into the furnace core interlayer, and a second air supply hole is formed in the end, extending into the furnace core interlayer, of the ignition pipe; the combustion chamber is arranged above the furnace core, the combustion chamber is provided with a base, and air holes are formed in the base; first air supply holes are formed in the positions, on the two sides of the furnace core, of the air pipe and supply air to the air holes in the base. According to the air supply mechanism of the biomass furnace, the two air channels on the two sides are used for supplying air, and the air supply holes in the furnace core supply air obliquely upwards, so that the air supply of the whole furnace core is more uniform, and the fuel combustion effect is better. The combustion chamber base is provided with the air inlet holes, so that the combustion chamber air supply amount can be remarkably increased, and the combustion efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the field of stoves, in particular to an air supply mechanism of a biomass particle stove. Background Art

[0002] Biomass fuel is different from fossil fuel. It is mainly biomass molded fuel, which uses agricultural and forestry waste as raw materials and is made into various shapes (such as blocks, granules, etc.) through processes such as crushing, mixing, extrusion, and drying. It is a new type of clean fuel that can be directly burned.

[0003] Existing biomass pellet stoves generally have an air supply mechanism, which transports air from the bottom to the stove body through a fan. However, there are still many problems with the existing stove air supply mechanism. For example, uneven air supply to the stove core leads to uneven fuel combustion; too little air volume leads to insufficient oxygen and incomplete fuel combustion; too much air volume causes the fuel at the bottom of the stove to gasify quickly, resulting in insufficient oxygen for secondary combustion and incomplete combustion; too much air volume can also cause dust to be raised, polluting the environment, and other problems. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned background technical difficulties and provide an air supply mechanism for a biomass stove.

[0005] In order to achieve the above purpose, the technical solution adopted is:

[0006] A biomass stove air supply mechanism supplies air to a stove core and a combustion chamber through a fan and an air duct, the air duct being arranged on both sides of the stove core, and being provided with an ignition tube connected to the stove core; the stove core is a double-layer hollow structure, and air holes are arranged on the inner wall, and the ignition tube extends into the stove core interlayer, and a second air supply hole is arranged at one end of the ignition tube extending into the stove core interlayer; the combustion chamber is arranged above the stove core, and the combustion chamber is provided with a base, and the base is provided with air holes; the air duct is provided with first air supply holes on both sides of the stove core, and the first air supply holes supply air to the air holes on the base.

[0007] Furthermore, the air duct includes a first air duct and a second air duct, the fan outlet is connected to the first air duct, the first air duct is connected to a pipe section, the pipe section is connected to two second air ducts, and the second air ducts are arranged on both sides of the furnace core.

[0008] Furthermore, an ignition rod is provided in the ignition tube, and the ignition rod seals one end of the ignition tube and extends the other end into the furnace core.

[0009] Furthermore, the second air supply holes discharge air in a tangential direction of the furnace core interlayer and obliquely upward, so that the air from the two second air supply holes is more evenly distributed to the air holes on the inner wall of the furnace core.

[0010] Furthermore, the air holes on the base are evenly distributed in a ring shape.

[0011] The beneficial effects of adopting the above scheme are as follows: the air supply mechanism of the biomass stove adopts double air channels on both sides to supply air, and the air supply holes in the stove core adopt oblique upward air supply, so that the air supply of the entire stove core is more uniform and the fuel combustion effect is better. The base of the combustion chamber is provided with air intake holes, which can significantly increase the air supply of the combustion chamber and significantly improve the combustion efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the air supply mechanism of the biomass stove of the utility model when viewed from above.

[0013] Figure 2 It is a cross-sectional structural diagram of the air supply mechanism of the biomass stove of the utility model.

[0014] Figure 3 It is a structural schematic diagram of the furnace core position in the air supply mechanism of the biomass furnace of the utility model.

[0015] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the furnace core in the air supply mechanism of the biomass furnace of the utility model.

[0016] In the figure, 1, fan; 2, first air duct; 3, pipe section; 4, second air duct; 5, ignition tube; 6, ignition rod; 7, furnace body; 8, furnace core; 9, base; 10, first air supply hole; 11, second air supply hole. DETAILED DESCRIPTION

[0017] The technical solution of the utility model is described clearly and completely below in conjunction with the specific embodiments of the utility model. The described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0018] Example 1

[0019] like Figure 1-4 , a biomass stove air supply mechanism, used for the air supply of the biomass stove, supplies air to the stove core 8 and the combustion chamber through the fan 1 and the air duct. The biomass stove also includes a panel, an ash box, a feeding device and necessary electrical power components. The air duct is arranged on both sides of the stove core 8, and the air duct is provided with an ignition tube 5 connected to the stove core 8. An ignition rod 6 is arranged in the ignition tube 5, and the ignition rod 6 closes one end of the ignition tube 5, and the other end extends into the stove core 8. After the ignition rod 6 is connected to the power supply and the switch, the biomass fuel in the stove core 8 can be ignited. After the fan 1 is connected to the power supply and the switch, wind can be generated, and air can be supplied to the stove core 8 through the air duct and the ignition tube 5. In addition to placing the ignition rod 6, the ignition tube 5 also provides air to the stove core 8, and at the same time cools the ignition rod 6 itself to prevent the ignition rod 6 from being too hot.

[0020] The combustion chamber is arranged above the furnace core 8, a furnace body 7 is arranged outside the combustion chamber, a base 9 is arranged at the bottom of the combustion chamber, and air holes are arranged on the base 9. When high-power combustion is not required, the stove can increase the air intake through the air holes on the base 9, and the fan 1 can be reduced or turned off to save electricity and reduce noise. The air duct is provided with first air supply holes 10 on both sides of the furnace core 8, and the first air supply holes 10 supply air to the air holes on the base 9. When high-power combustion is required, the air supply of the fan 1 is increased, and the air intake is increased for the air holes on the base 9 through the first air supply holes 10, so as to improve the combustion efficiency during high-power combustion. This is different from the prior art, in which the air volume is supplied entirely through the furnace core, which will produce a large amount of carbon monoxide at the furnace core, consume a large amount of oxygen, and cause a low secondary combustion efficiency; at the same time, it will cause a large amount of dust to the fuel in the furnace core. By increasing the air supply to the combustion chamber, the present application can significantly increase the oxygen content of the combustion chamber air and improve the secondary combustion efficiency. At the same time, it can reduce the dust phenomenon caused by the fuel in the furnace core and the dust content in the flue gas, which is more environmentally friendly and healthier.

[0021] The furnace core 8 is a double-layer hollow structure, with evenly distributed pores on the inner wall, and a second air supply hole 11 is provided at one end of the ignition tube 5 extending into the interlayer of the furnace core 8. This is different from the single-sided air supply in the prior art, where the fuel in the single-sided air supply furnace core 8 burns unevenly, one side burns excessively, and the other side may burn insufficiently.

[0022] Example 2

[0023] like Figure 1-4 On the basis of the above-mentioned embodiment 1, the air duct includes a first air duct 2 and a second air duct 4, the air outlet of the fan 1 is connected to the first air duct 2, the first air duct 2 is connected to the pipe section 3, the pipe section 3 is connected to two second air ducts 4, and the second air ducts 4 are arranged on both sides of the furnace core 8. The buffering of the pipe section 3 makes the air volume entering the second air duct 4 uniform. The second air supply hole 11 discharges air in the tangential direction of the interlayer of the furnace core 8 and obliquely upward, so that the air of the two second air supply holes 11 is more evenly distributed on the air holes of the inner wall of the furnace core 8. The air holes on the base 9 are evenly distributed in a ring shape. This is also different from the prior art in which the air outlet blows directly into the furnace core. The air outlet blows directly into the furnace core, which will cause excessive combustion of local fuel and insufficient combustion of places that are not blown. The present application supplies air to the furnace core 8 on both sides, and the air supply holes in the furnace core adopt oblique upward air supply, so that the air supply of the entire furnace core is more uniform, the fuel burns evenly, and the combustion effect is better.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A biomass stove air supply mechanism, which supplies air to the stove core and combustion chamber through a fan and an air duct, and is characterized by: The air duct is arranged on both sides of the furnace core, and the air duct is provided with an ignition tube connected to the furnace core; The furnace core is a double-layer hollow structure, with air holes on the inner wall, the ignition tube extends into the furnace core interlayer, and a second air supply hole is provided at one end of the ignition tube extending into the furnace core interlayer; The combustion chamber is arranged above the furnace core, and the combustion chamber is provided with a base, and the base is provided with air holes; The air duct is provided with first air supply holes on both sides of the furnace core, and the first air supply holes supply air to the air holes on the base.

2. The air supply mechanism for a biomass stove according to claim 1 is characterized in that: The air duct includes a first air duct and a second air duct, the air outlet of the fan is connected to the first air duct, the first air duct is connected to a pipe section, the pipe section is connected to two second air ducts, and the second air ducts are arranged on both sides of the furnace core.

3. The air supply mechanism for a biomass stove according to claim 1 is characterized in that: An ignition rod is arranged in the ignition tube, and the ignition rod seals one end of the ignition tube and extends the other end into the furnace core.

4. The air supply mechanism for a biomass stove according to claim 1 is characterized in that: The second air supply holes discharge air in the tangential direction of the furnace core interlayer and obliquely upward, so that the air from the two second air supply holes is more evenly distributed to the air holes on the inner wall of the furnace core.

5. The air supply mechanism for a biomass stove according to claim 1 is characterized in that: The air holes on the base are evenly distributed in a ring shape.

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