Firewood stove with secondary combustion structure

By setting up partitions and multiple air inlets in the wood stove, a secondary combustion structure is realized, which solves the problem of insufficient combustion of the wood stove, improves heating efficiency and saves resources.

CN223137929UActive Publication Date: 2025-07-22YONGKANG JIMUTUFENG IND & TRADE CO LTD
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Patent Information

Application Number
CN202422892581.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-07-22
Estimated Expiration
2034-11-26

AI Technical Summary

Technical Problem

The existing wood stove structure results in insufficient internal flame combustion, affecting heating efficiency and wasting resources.

Method used

A wood fire furnace with a secondary combustion structure is designed. By setting a partition and multiple air inlets in the furnace body, external air enters the furnace body at a high place and aids combustion with an open flame, secondary combustion is achieved.

Benefits of technology

Improve combustion efficiency, reduce resource waste, and achieve a more complete combustion effect.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223137929U_ABST
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Abstract

The utility model belongs to the technical field of firewood stoves, and particularly relates to a firewood stove with a secondary combustion structure, which comprises a stove body, a partition plate is arranged in the stove body, a plurality of first air holes are arranged on the partition plate, a first cavity is formed by the partition plate and the bottom of the stove body, a plurality of first air inlets are arranged on one side of the first cavity, and a plurality of second air inlets are arranged on the other side of the first cavity. A plurality of second air inlets are formed in the front side of the furnace body, a first baffle is arranged on one sides of the second air inlets, a second cavity is formed between the first baffle and the inner wall of the furnace body, a second air hole is formed in the upper end of the first baffle, a bent partition plate is arranged at the upper end of the second air hole, and an air outlet channel is formed by one side of the bent partition plate and the inner wall of the furnace body. An air outlet is formed in the upper end of the air outlet channel. The firewood stove with the secondary combustion structure is stable in structure, capable of saving resources and high in heating efficiency.
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Description

Technical Field

[0001] The utility model belongs to the technical field of firewood stoves, and particularly refers to a firewood stove with a secondary combustion structure. Background Art

[0002] At present, most firewood stoves only have air inlets provided below the stove body. Air enters the stove body from the air inlets at the bottom to realize the combustion of firewood in the stove. However, such a structure will cause incomplete combustion of the internal flame due to no air entering above the stove body during the combustion of firewood, greatly affecting the heating efficiency and wasting resources. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a firewood stove with a secondary combustion structure that has a stable structure, saves resources, and has high heating efficiency.

[0004] The purpose of the utility model is achieved as follows: A firewood stove with a secondary combustion structure includes a stove body. A partition is provided inside the stove body. The partition is provided with a number of air holes I. A chamber I is formed between the partition and the bottom of the stove body. A number of air inlets I are provided on one side of the chamber I. A number of air inlets II are opened on the front side of the stove body. A baffle I is provided on one side of the air inlets II. A chamber II is provided between the baffle I and the inner wall of the stove body. An air hole II is provided at the upper end of the baffle I. A bent partition is provided above the air hole II. An air outlet channel is formed between one side of the bent partition and the inner wall of the stove body. An air outlet is provided at the upper end of the air outlet channel.

[0005] Preferably, a number of air inlets III are provided on both the left and right sides of the stove body.

[0006] Preferably, a number of air inlets IV are opened on the rear side of the stove body. A baffle II is provided on one side of the air inlets IV. A chamber III is provided between the baffle II and the inner wall of the stove body. An air hole III is provided at the upper end of the baffle II.

[0007] Preferably, the horizontal height of the air inlets II is lower than the horizontal height of the air hole II.

[0008] Preferably, the horizontal height of the air inlets IV is lower than the horizontal height of the air hole III.

[0009] Preferably, the middle part of the bent partition is formed into an inclined part that is lower in the front and higher on the right. A cross plate I and a cross plate II are respectively provided on the left and right sides of the inclined part.

[0010] Preferably, the distance between the cross plate I and the top of the stove body is greater than the distance between the cross plate II and the top of the stove body.

[0011] Preferably, an air outlet is provided above the cross plate I.

[0012] The prominent and beneficial technical effects of the present utility model compared with the prior art are as follows: In the wood stove with a secondary combustion structure of the present utility model, the first combustion occurs when the air entering through air inlet one reacts with the firewood in the stove. After the firewood in the stove burns, the external air enters through air inlet two, air inlet three, and air inlet four provided at a high position of the stove body. When the oxygen in the external air encounters the open fire in the stove, it will assist in combustion, achieving secondary combustion, making the combustion more complete, greatly improving the combustion efficiency and reducing the waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is one of the structural schematic diagrams of the present utility model;

[0014] Figure 2 is the second structural schematic diagram of the present utility model;

[0015] Figure 3 is the cross-sectional view of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The present utility model will be further described below with specific embodiments.

[0017] As Figures 1-3 shown, a wood stove with a secondary combustion structure includes a stove body 1. A partition 2 is provided inside the stove body 1. A number of air permeation holes one 3 are provided on the partition 2. A chamber one 4 is formed between the partition 2 and the bottom of the stove body 1. A number of air inlet one 5 are provided on one side of the chamber one 4. A number of air inlet two 6 are opened on the front side of the stove body 1. A baffle one 7 is provided on one side of the air inlet two 6. A chamber two 8 is provided between the baffle one 7 and the inner wall of the stove body 1. An air permeation hole two 9 is provided at the upper end of the baffle one 7. A bent partition 10 is provided at the upper end of the air permeation hole two 9. An air outlet channel 11 is formed between one side of the bent partition 10 and the inner wall of the stove body 1. An air outlet 12 is provided at the upper end of the air outlet channel 11.

[0018] In the wood stove with a secondary combustion structure of this technical solution, the first combustion occurs when the air entering through air inlet one 5 reacts with the firewood in the stove. After the firewood in the stove burns, the external air enters through air inlet two 6, air inlet three 13, and air inlet four 14 provided at a high position of the stove body. When the oxygen in the external air encounters the open fire in the stove, it will assist in combustion, achieving secondary combustion, making the combustion more complete, greatly improving the combustion efficiency and reducing the waste of resources.

[0019] Preferably, a number of air inlet three 13 are provided on both the left and right sides of the stove body 1. Designing the air inlet three 13 can increase the air intake volume, make the secondary combustion of the open fire in the stove more complete, and improve the combustion efficiency.

[0020] Preferably, a plurality of fourth air inlets 14 are formed at the rear side of the furnace body 1. One side of the fourth air inlets 14 is provided with a second baffle 15. A third chamber 16 is arranged between the second baffle 15 and the inner wall of the furnace body 1. A third air permeable hole 17 is formed at the upper end of the second baffle 15.

[0021] Preferably, the horizontal height of the second air inlet 6 is lower than that of the second air permeable hole 9. The arrangement of the second air inlet 6 and the air permeable hole 9 at different heights enables the outside air to enter the furnace through the chamber design, so that the air flow rate is not too fast, and it can better enter the furnace and react with the open fire in the furnace, making the combustion more complete.

[0022] Preferably, the horizontal height of the fourth air inlet 14 is lower than that of the third air permeable hole 17. The arrangement of the fourth air inlet 14 and the third air permeable hole 17 at different heights enables the outside air to enter the furnace through the chamber design, so that the air flow rate is not too fast, and it can better enter the furnace and react with the open fire in the furnace, making the combustion more complete.

[0023] Preferably, an inclined portion 18 with a lower front and a higher right is formed in the middle of the bent partition 10. A first cross plate 19 and a second cross plate 20 are respectively arranged on the left and right sides of the inclined portion 18.

[0024] Preferably, the distance between the first cross plate 19 and the top of the furnace body 1 is greater than the distance between the second cross plate 20 and the top of the furnace body 1. The arrangement of the inclined portion 18 at different heights can better install the smoke pipe at the air outlet 12. In addition, the arrangement of the inclined portion 18 at different heights can also allow the air in the small space to enter the large space without being too urgent, enabling better exhaust.

[0025] Preferably, an air outlet 12 is arranged above the first cross plate 19.

[0026] The above embodiments are only the preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A wood stove with a secondary combustion structure, comprising a stove body (1). A partition plate (2) is arranged inside the stove body (1). A number of first air-permeable holes (3) are provided on the partition plate (2). A first chamber (4) is formed between the partition plate (2) and the bottom of the stove body (1). A number of first air inlets (5) are provided on one side of the first chamber (4), and it is characterized in that, A plurality of second air inlets (6) are formed in the front side of the furnace body (1). One side of the second air inlets (6) is provided with a first baffle (7). A second chamber (8) is arranged between the first baffle (7) and the inner wall of the furnace body (1). A second air permeable hole (9) is formed in the upper end of the first baffle (7). A bent partition plate (10) is arranged above the second air permeable hole (9). An air outlet channel (11) is formed between one side of the bent partition plate (10) and the inner wall of the furnace body (1). An air outlet (12) is arranged at the upper end of the air outlet channel (11).

2. The wood stove with a secondary combustion structure according to claim 1, characterized in that, A plurality of third air inlets (13) are arranged on both the left and right sides of the furnace body (1).

3. The wood stove with a secondary combustion structure according to claim 1, characterized in that, A plurality of fourth air inlets (14) are formed in the rear side of the furnace body (1). One side of the fourth air inlets (14) is provided with a second baffle (15). A third chamber (16) is arranged between the second baffle (15) and the inner wall of the furnace body (1). A third air permeable hole (17) is formed in the upper end of the second baffle (15).

4. The wood stove with a secondary combustion structure according to claim 1, characterized in that, The horizontal height of the second air inlets (6) is lower than that of the second air permeable holes (9).

5. The wood stove with a secondary combustion structure according to claim 3, characterized in that, The horizontal height of the fourth air inlets (14) is lower than that of the third air permeable holes (17).

6. The wood stove with a secondary combustion structure according to claim 1, characterized in that, The middle part of the bent partition plate (10) is formed into an inclined part (18) which is lower in the front and higher on the right. A first cross plate (19) and a second cross plate (20) are respectively arranged on the left and right sides of the inclined part (18).

7. The wood stove with a secondary combustion structure according to claim 6, characterized in that, The distance between the first cross plate (19) and the top of the furnace body (1) is greater than the distance between the second cross plate (20) and the top of the furnace body (1).

8. The wood stove with a secondary combustion structure according to claim 7, characterized in that, An air outlet (12) is arranged above the first cross plate (19).