Energy-saving firewood stove structure
By introducing annular flue, porous structure and refractory cement insulation layer into the firewood stove, the problems of low heat utilization and poor insulation effect of the existing firewood stove are solved, and the secondary utilization of heat and energy saving are achieved.
Patent Information
- Application Number
- CN202420781988.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-16
AI Technical Summary
The direct connection of the flue of the existing firewood stove and the smoke pipe leads to low heat utilization, causing environmental pollution, and the lack of insulation effect in the inner cavity structure leads to heat dissipation and waste of energy.
The annular flue and porous structure are used to disperse the pyrotechnics into the annular flue, and the annular flue is used for secondary heat utilization, and the heat is prevented from being dissipated through two layers of insulation, including a conical furnace chamber, annular flue plate, inside and outside A layer of protective cover and heat insulation made of refractory cement.
It effectively shortens cooking time, saves firewood or coal by 20%-40%, and prevents heat from spreading to the outside, realizing energy conservation and reuse of energy.
Smart Images
Figure CN222187017U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of firewood stoves, and in particular relates to an energy-saving firewood stove structure. Background Art
[0002] A wood stove is a stove that can be used indoors or outdoors, and is mainly used in rural households or restaurants in my country. The structure of an existing wood stove is a multifunctional wood stove disclosed in patent CN202022010089.3, which includes a stove body, a stove chamber and an ash storage chamber, a stove door and a smoke exhaust hole on the stove body, and a firewood shelf in the stove chamber. The current design of wood stoves has the following defects: 1. The wood stove flue is directly connected to the smoke pipe at a close distance. When cooking, 30%-40% of the large amount of heat generated by the burning of firewood or coal is directly discharged into the flue and finally discharged into the air. Not only is the heat utilization rate low, but it also causes environmental pollution; 2. The inner cavity structure of the wood stove does not have a heat preservation effect, resulting in a large amount of heat dissipation loss, resulting in a waste of energy such as firewood or coal. Therefore, it is necessary to propose improvements. Utility Model Content
[0003] The technical problem solved by the utility model is to provide an energy-saving firewood stove structure. The utility model utilizes an annular flue and a porous structure to disperse the smoke and fire into the annular flue structure, so that the heat does not enter the smoke pipe at the first time, and the generated heat is reused for the second time, which effectively shortens the cooking time and saves 20%-40% of firewood or coal; and by adding two layers of insulation, the heat is effectively prevented from diffusing to the outside, so as to achieve the purpose of energy saving and reuse.
[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0005] An energy-saving wood-fired stove structure comprises a fixed plate, a conical furnace cavity is fixed on the upper part of the fixed plate, an annular flue plate is fixedly connected to the edge of the conical furnace cavity, an inner protective cover is coaxially sleeved on the outside of the annular flue plate, an outer protective cover is coaxially sleeved on the outside of the inner protective cover, the upper and lower parts of the inner and outer protective covers are fixedly connected to the annular flue plate, an annular cavity between the annular flue plate and the inner protective cover forms an annular flue, the annular cavity between the inner and outer protective covers is filled with a first thermal insulation layer, and a second thermal insulation layer is provided on the upper part of the annular flue.
[0006] To further define the above scheme, a plurality of fireworks dispersion holes are evenly distributed on the circumference of the annular flue plate, and the inner cavity of the conical furnace cavity is connected with the inner cavity of the annular flue through the fireworks dispersion holes; a smoke outlet is provided on the annular flue plate, and the smoke outlet is connected to the smoke pipe.
[0007] To further define the above scheme, the cross-sections of the inner protective cover and the outer protective cover are both L-shaped structures, the L-shaped bending plates at the lower parts of the inner protective cover and the outer protective cover are directly fixedly connected to the lower part of the annular flue plate, the inner side of the upper part of the inner protective cover is fixedly connected to the upper part of the annular flue plate through a connecting plate, the upper parts of the inner protective cover and the outer protective cover are connected with a panel, the L-shaped annular cavity formed between the inner protective cover and the outer protective cover is filled with a first insulation layer, and a second insulation layer is filled between the connecting plate and the panel, and the inner surface of the second insulation layer is an arc surface that matches the outer surface of the iron pot.
[0008] As a further limitation of the above solution, both the first thermal insulation layer and the second thermal insulation layer are made of refractory cement.
[0009] As a further limitation of the above scheme, a heat insulation layer is also provided on the inner surface of the conical furnace cavity, a fire door is provided on one side of the conical furnace cavity, and furnace teeth are provided inside the conical furnace cavity.
[0010] The advantages of this utility model compared with the prior art:
[0011] 1. In this scheme, an annular flue is arranged in the firewood stove, and the inner cavity of the conical furnace cavity is connected with the inner cavity of the annular flue through the fire and smoke dispersion hole. The annular flue and the porous structure are used to disperse the fire and smoke into the annular flue structure, so that the heat does not enter the smoke pipe at the first time, and the generated heat is reused for the second time, which effectively shortens the cooking time and saves 20%-40% of firewood or coal;
[0012] 2. This scheme adds two layers of insulation to the energy-saving wood stove. The insulation layer uses refractory cement. The refractory cement is made of A700 aluminate cement as a binder, high-quality high-aluminum orthopedics supplemented with ultra-fine powder. It has the advantages of high temperature resistance, wear resistance, high strength, and not easy to crack. It effectively prevents heat from spreading to the outside and achieves the purpose of energy saving and reuse. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of an energy-saving wood-burning stove in an embodiment of the utility model;
[0014] Figure 2 It is a schematic cross-sectional structure diagram of an energy-saving wood-fired stove in an embodiment of the utility model. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0016] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.
[0017] See also Figure 1-2 , describe the embodiments of the present utility model in detail.
[0018] Embodiment: Energy-saving wood stove structure, see Figure 1 and 2 As shown, it includes a fixing plate 1, a conical furnace cavity 2 is fixed on the upper part of the fixing plate 1 by welding, a fire door 9 is provided on one side of the conical furnace cavity 2, and furnace teeth 10 are provided inside the conical furnace cavity 2. An annular flue plate 5 is fixedly connected to the upper edge of the conical furnace cavity 2 by welding, an inner protective cover 4 is coaxially sleeved on the outer side of the annular flue plate 5, an outer protective cover 3 is coaxially sleeved on the outer side of the inner protective cover 4, the upper and lower parts of the inner protective cover 4 and the outer protective cover 3 are fixedly connected to the annular flue plate 5, and the annular cavity between the annular flue plate 5 and the inner protective cover 4 forms an annular flue 11; the annular cavity between the inner protective cover 4 and the outer protective cover 3 is filled with a first heat insulation layer 6, and the first heat insulation layer 6 ensures that the heat in the annular flue 11 does not dissipate outward; a second heat insulation layer 7 is provided on the upper part of the annular flue 11, and the second heat insulation layer 7 ensures that the heat in the annular flue 11 and the conical furnace cavity 2 does not dissipate outward. The inner surface of the conical furnace cavity 2 is also provided with a heat insulation layer to ensure that heat is not dissipated outwards.
[0019] Among them, a plurality of fireworks dispersion holes 5-1 are evenly distributed on the circumference of the annular flue plate 5, and the inner cavity of the conical furnace cavity 2 is connected with the inner cavity of the annular flue 11 through the fireworks dispersion holes 5-1; the annular flue plate 5 is provided with a smoke port 5-2, and the smoke port 5-2 is connected to the smoke pipe 8.
[0020] In this embodiment, an annular flue and a porous structure are used to disperse smoke and fire into the annular flue structure, so that heat does not enter the smoke pipe at the first time, and the generated heat is reused, which effectively shortens the cooking time and saves 20%-40% of firewood or coal.
[0021] In one embodiment: See Figure 2As shown, the cross-sections of the inner protective cover 4 and the outer protective cover 3 are both L-shaped structures, and the L-shaped bending plates at the lower parts of the inner protective cover 4 and the outer protective cover 3 are directly connected to the lower part of the annular flue plate 5 by welding, and the inner side of the upper part of the inner protective cover 4 is fixedly connected to the upper part of the annular flue plate 5 by a connecting plate 12, and the fixing parts are all fixed by welding. The upper parts of the inner protective cover 4 and the outer protective cover 3 are welded and connected with a panel 13, and the L-shaped annular cavity formed between the inner protective cover 4 and the outer protective cover 3 is filled with a first insulation layer 6, and the second insulation layer 7 is filled between the connecting plate 12 and the panel 13, and the inner surface of the second insulation layer 7 is a circular arc surface adapted to the outer surface of the iron pot 14.
[0022] In this embodiment, two layers of heat insulation are added to the energy-saving wood stove to effectively prevent heat from diffusing to the outside, thereby achieving the purpose of energy saving and reuse.
[0023] Preferably, the first insulation layer 6 and the second insulation layer 7 are both made of refractory cement, which is a mixture of A700 aluminate cement as a binder, high-quality high-aluminum orthopedic powder supplemented with ultrafine powder. It has the advantages of high temperature resistance, wear resistance, high strength, and not easy to crack, and achieves a good thermal insulation effect.
[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, and any figure mark in the claims should not be regarded as limiting the claims involved.
[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 can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. An energy-saving wood-fired stove structure, comprising a fixing plate (1), a conical furnace cavity (2) being fixed on the upper part of the fixing plate (1), characterized in that: An annular flue plate (5) is fixedly connected to the upper edge of the conical furnace chamber (2); an inner protective cover (4) is coaxially sleeved on the outside of the annular flue plate (5); an outer protective cover (3) is coaxially sleeved on the outside of the inner protective cover (4); the upper and lower parts of the inner protective cover (4) and the outer protective cover (3) are fixedly connected to the annular flue plate (5); an annular cavity between the annular flue plate (5) and the inner protective cover (4) forms an annular flue (11); the annular cavity between the inner protective cover (4) and the outer protective cover (3) is filled with a first heat insulation layer (6); and a second heat insulation layer (7) is provided on the upper part of the annular flue (11).
2. The energy-saving wood-fired stove structure according to claim 1 is characterized in that: A plurality of fire and smoke dispersion holes (5-1) are evenly distributed on the circumference of the annular flue plate (5); the inner cavity of the conical furnace cavity (2) is connected to the inner cavity of the annular flue (11) through the fire and smoke dispersion holes (5-1); a smoke outlet (5-2) is provided on the annular flue plate (5); and the smoke outlet (5-2) is connected to a smoke pipe (8).
3. The energy-saving wood-fired stove structure according to claim 1 is characterized in that: The cross-sections of the inner protective cover (4) and the outer protective cover (3) are both L-shaped structures. The L-shaped bent plates at the lower parts of the inner protective cover (4) and the outer protective cover (3) are directly fixedly connected to the lower part of the annular flue plate (5). The inner side of the upper part of the inner protective cover (4) is fixedly connected to the upper part of the annular flue plate (5) through a connecting plate (12). The upper parts of the inner protective cover (4) and the outer protective cover (3) are connected with a panel (13). The L-shaped annular cavity formed between the inner protective cover (4) and the outer protective cover (3) is filled with a first thermal insulation layer (6). The second thermal insulation layer (7) is filled between the connecting plate (12) and the panel (13). The inner surface of the second thermal insulation layer (7) is an arc surface adapted to the outer surface of the iron pot (14).
4. The energy-saving wood-fired stove structure according to claim 1 is characterized in that: The first heat insulating layer (6) and the second heat insulating layer (7) are both made of refractory cement.
5. The energy-saving wood-fired stove structure according to claim 1 is characterized in that: The inner surface of the conical furnace cavity (2) is also provided with a heat insulation layer, a fire door (9) is provided on one side of the conical furnace cavity (2), and furnace teeth (10) are provided inside the conical furnace cavity (2).