Furnace bridge and household firewood stove

Abstract

The utility model relates to the technical field of household firewood stoves, in particular to a grate bridge and a household firewood stove. Comprising an outer frame and a plurality of bridges, the bridges are arranged in the middle of the outer frame in parallel, a long-strip-shaped gap is formed between every two adjacent bridges, and the width of each gap is 5-8 mm. The long-strip-shaped gap is formed in the grate bridge, the width of the gap is controlled to range from 5 mm to 8 mm, normal ash discharging of the grate bridge is guaranteed, and meanwhile combustion sufficiency of biomass particle combustible materials on the grate bridge is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of household firewood stoves, in particular to a stove bridge and a household firewood stove. Background Art

[0002] The fuel of a household wood stove is generally a compressed biomass pellet combustible. The wood stove includes a furnace, and a furnace bridge is installed at the bottom of the furnace. The furnace bridge is generally composed of an outer frame and a plurality of bridges. The bridges are arranged in parallel in the middle of the outer frame, and there is a gap between adjacent bridges for unloading ash. The existing furnace bridge has a wide gap between the bridges, resulting in a large waste of fuel, and the combustion completeness of the fuel has a certain room for improvement.

[0003] The patent with publication number CN210267336U discloses a firewood integrated stove bridge, including an outer frame and bridge steel (equivalent to a bridge). The outer frame is composed of concrete on the edge of the stove bridge. A plurality of grooves of the same size are arranged on the top of the outer frame. A plurality of bridge steels are respectively placed in the grooves. The connection between the bridge steel and the groove is filled and fixed by concrete.

[0004] The above technical records reduce the amount of combustion fuel leaking from the gaps between the bridge steels by reducing the gaps and sizes between the bridge steels, thereby making more effective use of energy.

[0005] However, looking at the above technologies, the above technologies do not specifically disclose the width of the gap between adjacent bridge steels. Therefore, the structure of the furnace bridge has room for further improvement to ensure normal ash unloading while improving the combustion completeness of biomass particle combustibles. Utility Model Content

[0006] In order to solve the above technical problems, the purpose of the utility model is to provide a furnace bridge and a household wood stove.

[0007] The technical solution adopted by the utility model to solve the problem is:

[0008] A furnace bridge comprises an outer frame and a plurality of bridges, wherein the bridges are arranged in parallel in the middle of the outer frame, and there is a gap between two adjacent bridges, the gap is in the shape of an elongated strip, and the width of the gap is 5-8 mm.

[0009] As a further improvement of the above technical solution, the bridge is cylindrical, and the bridge and the outer frame are formed in one piece.

[0010] As a further improvement of the above technical solution, the cross section of the outer frame is in the shape of a rounded square.

[0011] A household wood-fired stove comprises a furnace and a furnace bridge as described above, wherein a through hole is provided at the bottom of the furnace, the furnace bridge is installed on the through hole, a first oxygen supply hole and a second oxygen supply hole are provided on the furnace, the first oxygen supply hole is located below the furnace bridge, and the second oxygen supply hole is located above the furnace bridge.

[0012] As a further improvement of the above technical solution, a step surface is provided on the inner wall of the through hole, the height of the step surface is lower than the inner bottom surface of the furnace, and the furnace bridge is overlapped on the step surface.

[0013] As a further improvement of the above technical solution, a feed port is provided at the front side of the furnace, and the fuel enters the interior of the furnace from front to back, and the gap is provided in the left and right directions.

[0014] As a further improvement of the above technical solution, the first oxygen supply hole and the second oxygen supply hole are arranged on the left side wall and / or the right side wall of the furnace.

[0015] As a further improvement of the above technical solution, the number of the second oxygen supply holes is several, and the second oxygen supply holes are arranged at intervals on the left side wall and the right side wall of the furnace.

[0016] The beneficial effect of the utility model is that the utility model arranges a long strip gap on the furnace bridge, and the width of the gap is controlled to be 5-8 mm, thereby ensuring normal ash unloading of the furnace bridge and improving the combustion completeness of biomass particle combustibles on the furnace bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further explained below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 It is a structural schematic diagram of the furnace bridge of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the furnace of the utility model;

[0020] Figure 3 It is a schematic diagram of the assembly structure of the furnace bridge and the furnace of the utility model;

[0021] Figure 4 This is a cross-sectional view of the assembly structure of the furnace bridge and the furnace of the utility model;

[0022] In the figure: 11-outer frame, 12-bridge, 13-gap, 2-furnace, 21-through hole, 211-step surface, 22-first oxygen supply hole, 23-second oxygen supply hole, 24-feed port. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0027] Reference Figures 1 to 4 A furnace bridge comprises a hollow outer frame 11 and a plurality of long strip-shaped bridges 12, wherein the bridges 12 are arranged in parallel in the middle of the outer frame 11, and all the bridges 12 are located on the same horizontal plane. There is a gap 13 between two adjacent bridges 12, and the gap 13 is in the shape of a strip, and the width of the gap 13 is 5-8 mm, preferably 8 mm. The diameter of the existing artificially compressed biomass particle combustibles is generally slightly larger than 9 mm, while the utility model arranges a long strip-shaped gap 13 on the furnace bridge, and the width of the gap 13 is controlled to be 5-8 mm, thereby ensuring the normal ash unloading of the furnace bridge while improving the combustion sufficiency of the biomass particle combustibles on the furnace bridge.

[0028] In a preferred embodiment, the bridge 12 is cylindrical, and the bridge 12 and the outer frame 11 are integrally formed to facilitate disassembly, assembly and cleaning.

[0029] In a preferred embodiment, the cross section of the outer frame 11 is in the shape of a rounded square, so that the furnace bridge has four installation angles.

[0030] A household wood-fired stove comprises a furnace 2 and a furnace bridge as described above, wherein a through hole 21 is provided at the bottom of the furnace 2, the furnace bridge is mounted on the through hole 21, and a first oxygen supply hole 22 and a second oxygen supply hole 23 are provided on the furnace 2, wherein the first oxygen supply hole 22 is located below the furnace bridge, and the second oxygen supply hole 23 is located above the furnace bridge. By providing oxygen supply holes both above and below the furnace bridge, the combustion completeness of the fuel is further improved.

[0031] In a preferred embodiment, a step surface 211 is provided on the inner wall of the through hole 21, and the height of the step surface 211 is lower than the inner bottom surface of the furnace 2. The furnace bridge is overlapped on the step surface 211, which further facilitates the disassembly and assembly of the furnace bridge.

[0032] In a preferred embodiment, a feed port 24 is provided at the front side of the furnace 2, and fuel enters the furnace 2 from front to back. The gap 13 is arranged in the left and right directions, and the feed direction is perpendicular to the length direction of the gap 13.

[0033] In a preferred embodiment, the first oxygen supply hole 22 and the second oxygen supply hole 23 are arranged on the left side wall and the right side wall of the furnace 2 .

[0034] In a preferred embodiment, there are a plurality of second oxygen supply holes 23, and the second oxygen supply holes 23 are evenly spaced.

[0035] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention specification and drawings under the utility model concept, or directly or indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A furnace bridge, comprising an outer frame (11) and a plurality of bridges (12), wherein the bridges (12) are arranged in parallel in the middle of the outer frame (11), and there is a gap (13) between two adjacent bridges (12), characterized in that: The gap (13) is in the shape of an elongated strip, and the width of the gap (13) is 5-8 mm.

2. A furnace bridge according to claim 1, characterized in that: The bridge (12) is cylindrical, and the bridge (12) and the outer frame (11) are integrally formed.

3. A furnace bridge according to claim 1, characterized in that: The cross section of the outer frame (11) is in the shape of a rounded square.

4. A household wood-fired stove, comprising a furnace (2) and a furnace bridge as claimed in any one of claims 1 to 3, wherein a through hole (21) is provided at the bottom of the furnace (2), and the furnace bridge is installed on the through hole (21), characterized in that: The furnace (2) is provided with a first oxygen supply hole (22) and a second oxygen supply hole (23); the first oxygen supply hole (22) is located below the furnace bridge, and the second oxygen supply hole (23) is located above the furnace bridge.

5. A household wood-fired stove as claimed in claim 4, characterized in that: A step surface (211) is provided on the inner side wall of the through hole (21), the height of the step surface (211) is lower than the inner bottom surface of the furnace (2), and the furnace bridge is overlapped on the step surface (211).

6. A household wood-fired stove as claimed in claim 4, characterized in that: A feed port (24) is provided on the front side of the furnace (2), and fuel enters the interior of the furnace (2) from front to back. The gap (13) is provided in the left-right direction.

7. A household wood-fired stove as claimed in claim 6, characterized in that: The first oxygen supply hole (22) and the second oxygen supply hole (23) are arranged on the left wall and / or the right wall of the furnace (2).

8. A household wood-burning stove as claimed in claim 7, characterized in that: The number of the second oxygen supply holes (23) is a plurality, and the second oxygen supply holes (23) are arranged at intervals on the left side wall and the right side wall of the furnace (2).

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