Air inducing structure of firewood stove

Abstract

The utility model provides an induced draft structure of a firewood stove, which comprises a combustion main body and an induced draft fan which are arranged in the firewood stove, the combustion main body is provided with a combustion cavity and an induced draft channel, and the induced draft channel is communicated with the combustion cavity and the air inlet end of the induced draft fan. The air inducing channel is arranged to be connected with the combustion cavity and the air inlet end of the induced draft fan, smoke in the combustion cavity is sucked through the induced draft fan, external fresh air is input into the combustion cavity through the firewood discharging opening and other air inlets to support combustion, the smoke backflow problem is solved, and the combustion efficiency is further improved.

Description

[Technical field]

[0001] The utility model relates to an air induction structure of a wood stove. [Background technology]

[0002] Wood stoves usually use firewood as fuel. Traditional wood stoves are made of cement bricks and are fixed in place and cannot be moved. Therefore, some people combine wood stoves with modern technology to turn them into mobile wood stoves that can be produced and sold. Such wood stoves are usually equipped with a blower to provide oxygen to the firewood combustion chamber. However, wood stoves with this structure are prone to smoke backflow, that is, the smoke generated is blown out from the firewood outlet, together with some blown out ashes, which can easily cause environmental air pollution. [Contents of the utility model]

[0003] The purpose of the utility model is to overcome the above problems. We provide an air induction structure for a wood stove, which solves the problem of backflow of smoke.

[0004] To achieve the above-mentioned purpose, the utility model provides an induced draft structure of a wood-fired stove, which includes a combustion body and an induced draft fan arranged inside the wood-fired stove, the combustion body having a combustion chamber and an induced draft channel, the induced draft channel connecting the combustion chamber and the air inlet end of the induced draft fan.

[0005] In one or more embodiments, a heat insulator is disposed on the periphery of the combustion body, and the air duct is placed in the heat insulator.

[0006] In one or more embodiments, the air induced passage is vertically arranged, the top of the air induced passage is an air inlet, and the bottom is an air outlet, and the air inlet is close to the combustion chamber.

[0007] In one or more embodiments, the number of the air induction channels is multiple, and the multiple air induction channels are arranged around the combustion chamber.

[0008] In one or more embodiments, the induced draft fan is arranged below the combustion body, the bottom of the induced draft channel passes through the bottom plate of the combustion body, and the air inlet end of the induced draft fan is connected to the bottom of the induced draft channel.

[0009] In one or more embodiments, the induced draft fan includes a casing, a wind wheel and a motor. The wind wheel is arranged inside the casing, the motor is fixed on the casing and its rotating shaft is connected to the wind wheel, the air inlet end is arranged at the top of the casing, and the air outlet end is arranged on the side of the casing.

[0010] In one or more embodiments, the thermal insulation body is thermal insulation mud.

[0011] Compared with the background technology, the utility model has the following effects: an induced draft channel is provided to connect the combustion chamber and the air inlet end of the induced draft fan, the smoke in the combustion chamber is sucked by the induced draft fan, and fresh air from the outside is input into the combustion chamber through the firewood opening and other air inlets to assist combustion, thus solving the problem of backflow of smoke and improving combustion efficiency.

Brief Description of the Drawings

[0012] Figure 1 It is a schematic diagram of the structure of the combustion body and the induced draft fan of the embodiment of the utility model;

[0013] Figure 2 for Figure 1 Schematic diagram of the structure from another angle;

[0014] Figure 3 It is a structural schematic diagram of the induced draft fan of an embodiment of the utility model. [Specific implementation method]

[0015] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0016] Please see Figure 1-3 The utility model provides an induced draft structure of a wood-fired stove, which includes a combustion body 1 and an induced draft fan 2 arranged inside the wood-fired stove, the combustion body having a combustion chamber 3 and an induced draft channel 4, the induced draft channel 4 connecting the combustion chamber 3 and an air inlet end 21 of the induced draft fan 2, when the induced draft fan is working, it draws air / smoke in the combustion chamber, and fresh air from the outside enters the combustion chamber from the firewood placing port to supplement oxygen and provide combustion assistance, the use of this induced draft structure can solve the problem of backsmoke and can improve combustion efficiency.

[0017] The combustion body 1 is provided with an insulator 5 on its periphery, and the insulator 5 can be made of insulating mud. The air duct 4 is placed in the insulator. Since the combustion body generates a lot of heat during operation, an insulator is required to protect other electrical components in the wood stove. The air duct is placed in the insulator to save the insulation material of the air duct, thus saving production costs. The air duct 4 is arranged vertically, with the top of the air duct being an air inlet and the bottom being an air outlet. The air inlet is close to the combustion chamber 3, so as to facilitate smoother suction of smoke in the combustion chamber.

[0018] The number of the air induction channels 4 is preferably multiple. In this embodiment, four air induction channels are provided, and the multiple air induction channels are arranged around the combustion chamber 3.

[0019] The induced draft fan 2 is arranged below the combustion body 1, and the bottom of the induced draft channel 4 passes through the bottom plate of the combustion body 1. The air inlet end 21 of the induced draft fan 2 is connected to the bottom of the induced draft channel 4. Direct connection can save connecting parts on the one hand, and reduce the bending position on the other hand, so that the suction wind force is greater and the wind force attenuation is avoided.

[0020] The induced draft fan 2 includes a housing 22, a wind wheel 23 and a motor 24. The wind wheel is arranged inside the housing. The motor is fixed on the housing and its rotating shaft is connected to the wind wheel. The air inlet end 21 is arranged on the top of the housing 22. The side of the housing is provided with an air outlet end 25. The air outlet end can be connected to an exhaust pipe to discharge smoke to the outside.

[0021] In addition to the above embodiments, the present invention may also have other implementation modes, and technical solutions formed by equivalent replacement or equivalent transformation all fall within the protection scope of the present invention.

Claims

1. An air induction structure for a wood stove, characterized in that: The invention comprises a combustion body (1) and an induced draft fan (2) arranged inside a wood-fired stove, wherein the combustion body comprises a combustion chamber (3) and an induced draft channel (4), wherein the induced draft channel (4) communicates with the combustion chamber (3) and an air inlet end (21) of the induced draft fan (2).

2. The air induction structure of a wood-fired stove according to claim 1, characterized in that: A heat insulator (5) is provided on the periphery of the combustion body (1), and an air induction channel (4) is placed in the heat insulator.

3. The air induction structure of a wood-fired stove according to claim 2, characterized in that: The air induction channel (4) is arranged vertically, the top of the air induction channel is an air inlet, and the bottom of the air induction channel is an air outlet, and the air inlet is close to the combustion chamber (3).

4. The air induction structure of a wood-fired stove according to claim 2 or 3, characterized in that: The number of the air induction channels (4) is multiple, and the multiple air induction channels are arranged around the combustion chamber (3).

5. The air induction structure of a wood-fired stove according to claim 4, characterized in that: The induced draft fan (2) is arranged below the combustion body (1), the bottom of the induced draft channel (4) penetrates the bottom plate of the combustion body (1), and the air inlet end (21) of the induced draft fan (2) is butted against the bottom of the induced draft channel (4).

6. The air induction structure of a wood-fired stove according to claim 5, characterized in that: The induced draft fan (2) comprises a housing (22), a wind wheel (23) and a motor (24); the wind wheel is arranged inside the housing; the motor is fixed on the housing and its rotating shaft is connected to the wind wheel; the air inlet end (21) is arranged at the top of the housing (22); and the side of the housing is provided with an air outlet end (25).

7. The air induction structure of a wood-fired stove according to claim 2, characterized in that: The heat insulating body (5) is heat insulating mud.

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