CN219955362U

CN219955362U - Biomass combustion furnace

Info

Publication number: CN219955362U
Application number: CN202320131870.7U
Authority: CN
Inventors: 陈瑞全
Original assignee: Yuzhou Heluo Furnace Industry Co ltd
Current assignee: Yuzhou Heluo Furnace Industry Co ltd
Priority date: 2023-01-13
Filing date: 2023-01-13
Publication date: 2023-11-03
Anticipated expiration: 2033-01-13

Abstract

The utility model relates to the technical field of stoves, in particular to a biomass combustion stove. The biomass combustion furnace comprises a furnace body, a furnace chamber embedded in the furnace body, a furnace core embedded in the furnace chamber and an ash discharging frame embedded at the bottom of the furnace core, wherein a plurality of vent holes which are coaxially arranged and penetrate through the furnace chamber and the furnace core are formed in the outer circumferences of the furnace chamber and the furnace core, a plurality of layers of vent holes are arranged along the length direction of the furnace chamber, and each vent hole of each layer is inclined towards the upper end opening of the furnace chamber and is formed in the same direction; the furnace body is provided with a vent, the vent is communicated with the vent, the fan is fixed on the outer side of the furnace body, and the air outlet of the fan is communicated with the vent; the lower part of the furnace body is provided with an ash discharge hole which is communicated with the lower end opening inside the furnace core. According to the utility model, through natural air inlet at the bottom and forced air inlet at the side, flame rotates at a high speed during combustion, so that biomass is fully combusted, and energy conservation and consumption reduction are realized.

Description

Biomass combustion furnace

Technical Field

The utility model relates to the technical field of stoves, in particular to a biomass combustion stove.

Background

The biomass combustion furnace adopts biomass briquette fuel (crushed wood, straw, corncob, fruit shell, various biomass briquettes and the like) to enable the fuel to be fully combusted in the hearth, has multiple functions of heating, water heating, cooking and the like, solves the problem of agriculture and forestry waste treatment, reduces the emission of toxic gas and carbon dioxide, and accordingly reduces environmental pollution and saves production and living costs.

The existing biomass combustion furnace is generally provided with a furnace body, a furnace chamber is embedded in the furnace body, an ash discharging hole is formed in the bottom of the furnace chamber, and a biomass fuel in the furnace chamber is combusted by natural wind introduced by the ash discharging hole, so that the combustion of the biomass fuel is insufficient, and the fuel utilization rate is low. In order to improve the combustion efficiency of biomass fuel in the hearth, a fan is generally adopted to force air to flow into the hearth, and the air content in the hearth is improved due to the action of forced air flow, so that combustion supporting of the biomass fuel is realized to a certain extent, but the air distribution is not uniform enough due to the fact that air flow sent into the hearth is disordered, and the sufficient combustion of the biomass fuel in the hearth is influenced. In addition, the internal flame which is emitted from the opening at the upper end of the hearth heats the cooker, but the external flame escapes outwards, so that the cooker cannot be effectively heated, and therefore, the energy utilization rate of the existing biomass combustion furnace to biomass fuel is low, and the design of the biomass combustion furnace capable of saving energy and reducing consumption is needed.

Disclosure of Invention

In order to solve at least one technical problem in the prior art, the utility model provides the biomass combustion furnace which can drive flame rotation, combine natural air inlet at the bottom and forced air inlet at the side part, fully burn biomass, save energy and reduce consumption.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the biomass combustion furnace comprises a furnace body, a furnace chamber embedded in the furnace body, a furnace core embedded in the furnace chamber and an ash discharging frame embedded at the bottom of the furnace core, wherein a plurality of vent holes which are coaxially arranged and penetrate through the furnace chamber and the furnace core are formed in the outer circumferences of the furnace chamber and the furnace core, a plurality of layers of vent holes are arranged along the length direction of the furnace chamber, and each vent hole of each layer is inclined towards the upper end opening of the furnace chamber and is formed in the same direction; the furnace body is provided with a vent, the vent is communicated with the vent, the fan is fixed on the outer side of the furnace body, and the air outlet of the fan is communicated with the vent; the lower part of the furnace body is provided with an ash discharge hole which is communicated with the lower end opening inside the furnace core.

Preferably, each layer of the plurality of ventilation holes is arranged in a spiral ascending direction by taking the axis of the hearth as the center, each ventilation hole is arranged along the spiral ascending direction, and each ventilation hole is obliquely arranged along the upper end opening of the hearth in the spiral ascending direction.

Preferably, a fire stopping ring is arranged on the upper end face of the furnace body, a feeding hole is formed in the fire stopping ring, long-strip-shaped air inlet through grooves are formed in the fire stopping rings on two sides of the feeding hole, the inner diameter of the fire stopping ring is larger than that of the furnace core, and a smoke outlet is formed in the fire stopping ring opposite to the feeding hole.

Preferably, a bracket is arranged on the upper end face of the furnace body in the fire blocking ring, a baffle is vertically arranged on the bracket, the baffle is close to the smoke outlet and is arranged opposite to the smoke outlet, and the size of the baffle is larger than that of the smoke outlet.

Preferably, a bracket is arranged on the upper end surface of the furnace body in the fire blocking ring, a bracket notch is arranged on the bracket near the feeding hole, and the transverse size of the bracket notch is larger than that of the feeding hole.

Preferably, the outside fixedly connected with L shape air pipe in the furnace body, air pipe intercommunication vent the outside fixedly connected with of air pipe is towards the spacing of furnace body, the air outlet of fan wears to establish in air pipe just the fan and spacing butt.

Preferably, the outside of the furnace body is fixedly connected with an ash discharging pipeline, the ash discharging pipeline is communicated with an ash discharging hole, an ash discharging door which can rotate and seal the ash discharging pipeline is arranged at the opening of the ash discharging pipeline, a fastening bolt is arranged on the ash discharging door in a penetrating manner and is connected with the ash discharging pipeline in a threaded manner, and when the fastening bolt is screwed, the ash discharging door can be fixed at a certain position.

Preferably, a handle is arranged on the outer side end face of the ash discharging door.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, through arranging the ash discharge port, the fan and the plurality of layers of vent holes obliquely arranged towards the opening of the hearth, the bottom air inlet and the side forced air inlet are realized so as to enable biomass fuel in the furnace core to be combusted efficiently, and meanwhile, because the vent holes are obliquely and equidirectionally arranged, wind blown out by the fan can rotate along the inner wall of the furnace core when entering the furnace core to form high-speed rotating wind, so that flame in the furnace core can rotate in the furnace core at high speed along wind force in a circulating way, and the full combustion of the biomass fuel is realized. Furthermore, the plurality of ventilation holes on each layer are arranged in a spiral ascending direction by taking the axis of the hearth as the center, so that spiral ascending rotary wind is formed inside the furnace core, the combustion efficiency of biomass fuel is further improved, and the heating efficiency of the cooker is further improved.

2. By arranging the fire blocking ring and the air inlet through groove, flame which is blown out from the furnace core can realize secondary combustion in the fire blocking ring, so as to further improve the combustion efficiency; by arranging the support, the cooker is supported, and meanwhile, the retention time of flame in the fire-blocking ring is prolonged, so that the full combustion of biomass fuel is further promoted.

3. The ventilating pipeline and the limiting frame are arranged, so that the fan can be conveniently disassembled and assembled; by arranging the ash discharging pipeline, the ash discharging door and the fastening bolts, the opening and closing of the ash discharging opening are facilitated.

Drawings

Fig. 1 is a schematic overall structure of embodiment 1 of the present utility model in use.

Fig. 2 is a schematic structural diagram of embodiment 1 of the present utility model when the fan is taken out.

Fig. 3 is an enlarged schematic view of the structure at a in fig. 2.

Fig. 4 is a schematic top view of embodiment 1 of the present utility model.

Fig. 5 is a schematic view of A-A cross-sectional structure of fig. 4.

Fig. 6 is a schematic view of the hearth and the furnace core according to the first view of embodiment 1 of the present utility model.

Fig. 7 is a schematic structural view of the hearth and the furnace core according to the second view angle of embodiment 1 of the present utility model.

Fig. 8 is a schematic structural view of a stent according to embodiment 1 of the present utility model.

Fig. 9 is a schematic structural view of the firestop ring of the present utility model.

Fig. 10 is a schematic view showing the overall structure of embodiment 2 of the present utility model in use.

Fig. 11 is a schematic structural view of a stent according to embodiment 2 of the present utility model.

In the figure: 1. furnace body, 11, vent, 12, ash discharging pipeline, 13, ash discharging door, 14, fastening bolt, 15, handle, 16, connecting plate, 17, vent pipe, 18, spacing, 2, furnace, 21, vent, 3, furnace core, 4, ash discharging frame, 5, fan, 6, fire stopping ring, 61, feed inlet, 62, air inlet through groove, 63, outlet flue, 7, support A,71, base, 72, support plate, 73, baffle, 8, support B,81, support ring, 82, support breach.

Description of the embodiments

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Examples

Referring to fig. 1 to 7, a biomass combustion furnace comprises a furnace body 1, a hearth 2, a furnace core 3, an ash discharging frame 4, a fan 5, a fire blocking ring 6 and a bracket A7.

The furnace body 1 is in a hollow cylindrical shape or a square cylindrical shape, the upper end of the furnace body is open, the lower end of the furnace body is sealed, and the hearth 2 is fixedly embedded in the inner cavity of the furnace body 1. When the hearth 2 is of a cylindrical hollow structure, a supporting structure matched with the shape of the hearth 2 can be arranged on the inner wall of the furnace body 1 so as to support the hearth 2; when the hearth 2 is a cylindrical hollow structure with a flange at the upper part in the embodiment, a counter bore type structure can be arranged at the opening of the upper end surface of the inner cavity of the furnace body 1, and the flange structure of the hearth 2 is embedded in the counter bore type structure so as to fix the hearth 2. A furnace core 3 with a hollow structure and two open ends is embedded in the furnace chamber 2, an ash discharging frame 4 is fixedly embedded in the lower opening of the furnace core 3, and a plurality of through groove structures are arranged on the ash discharging frame 4 so that ashes after combustion fall into the furnace body 1 from the furnace core 3. The above structure is prior art, and there may be differences in specific structural forms, but the related principles are the same.

A plurality of vent holes 21 which are coaxially arranged and penetrate through the hearth 2 and the furnace core 3 are arranged on the outer circumferences of the hearth 2 and the furnace core 3, and the vent holes 21 are provided with a plurality of layers along the length direction of the hearth 2. In this embodiment, the ventilation holes 21 are provided with an upper layer and a lower layer, one layer is provided on the upper portion of the hearth 2 and the furnace core 3, and the other layer is provided on the lower portion of the hearth 2 and the furnace core 3, and the number of ventilation holes 21 on the upper layer is larger than that of ventilation holes 21 on the lower layer. Each vent hole 21 of each layer is inclined toward the upper end opening of the furnace 2 and opened in the same direction, i.e., each vent hole 21 of each layer is opened toward the upper right as shown in fig. 6. In order to improve the air inlet quantity of the inner cavities of the furnace body 1 and the furnace core 3 and improve the combustion efficiency of biomass fuel in the inner cavity of the furnace core 3, a vent 11 is formed in the vertical end face of the furnace body 1, the vent 11 is communicated with a vent 21, and the fan 5 is fixed on the outer side of the furnace body 1 and the air outlet of the fan is communicated with the vent 11. With the above configuration, when the air blown by the fan 5 enters the space between the furnace 2 and the furnace body 1, the air enters the interior of the furnace core 3 through the ventilation holes 21. Because the vent holes 21 are obliquely upwards provided with two layers, the wind entering the furnace core 3 is in a high-speed rotation state, so that the flame in the furnace core 3 circularly rotates in the furnace core 3 at a high speed along the wind potential, and the full combustion of biomass fuel is realized.

In order to facilitate taking out the ashes after the biomass fuel is combusted, an ash discharge hole is formed in the lower part of the furnace body 1 below the furnace core 3, and the ash discharge hole is communicated with a lower end opening in the furnace core 3. An ash discharging pipeline 12 is welded on the outer side of the furnace body 1, the ash discharging pipeline 12 is communicated with an ash discharging hole, an ash discharging door 13 which can rotate and seal the ash discharging pipeline 12 is arranged at the opening of the ash discharging pipeline 12, a fastening bolt 14 is arranged on the ash discharging door 13 in a penetrating manner and is connected to the ash discharging pipeline 12 in a threaded manner, and a handle 15 is welded on the end face of the outer side of the ash discharging door 13 so as to rotate the ash discharging door 13 to realize the opening and closing of the ash discharging pipeline 12. When tightening the fastening bolt 14, the ash door 13 can be fixed in a certain position. Therefore, when the biomass combustion furnace works, the ash discharging door 13 is opened, so that natural air inlet at the bottom of the furnace core 3 is realized, and the natural air inlet is combined with forced air inlet at the side part of the hearth 2, so that the full combustion of biomass fuel is further realized. In order to prevent the wind blown out by the fan 5 from being split to the outside of the furnace body 1 from the ash discharge opening, a connecting plate 16 is arranged on the inner wall of the furnace body 1 below the ventilation opening 11, and the connecting plate 16 can be sleeved on the outer circumference of the hearth 2, so that the inner space of the furnace body 1 is separated by the connecting plate 16.

In order to further improve the combustion efficiency of biomass fuel in the furnace core 3, each layer of a plurality of vent holes 21 are arranged in a spiral ascending direction by taking the axis of the furnace chamber 2 as the center, each vent hole 21 is arranged in the spiral ascending direction, and each vent hole 21 is obliquely arranged along the upper end opening of the furnace chamber 2 in the spiral ascending direction. That is, referring to fig. 6, the vent holes 21 of each layer are arranged in a spiral ascending direction, and each vent hole 21 of each layer is opened obliquely toward the right upper side. With this structure, the strength of the rotating wind in the furnace core 3 is further improved to further achieve sufficient combustion of the biomass fuel.

Referring to fig. 1 and 9, a fire-blocking ring 6 is arranged on the upper end surface of the furnace body 1, and the fire-blocking ring 6 can be welded on the upper end surface of the furnace body 1 or can be detachable so as to be convenient for replacing fire-blocking rings 6 with different heights. The fire stopping ring 6 is provided with a feed port 61, the fire stopping rings 6 on two sides of the feed port 61 are provided with long air inlet through grooves 62, the inner diameter of the fire stopping ring 62 is larger than the inner diameter of the furnace core 3, and the fire stopping ring 6 opposite to the feed port 61 is provided with a smoke outlet 63. By arranging the fire stop ring 6, the heat preservation and wind shielding are realized, and meanwhile, the fire stop ring 6 is of a circular structure, so that the contact time between the rotating flame in the furnace core 3 and the bottom of the cooker can be prolonged, the heating efficiency is improved, and meanwhile, the heat utilization rate of the biomass fuel after combustion is improved, so that the purposes of energy conservation and consumption reduction are realized. By providing the air inlet through groove 62, the flame entering the fire blocking ring 6 is subjected to secondary combustion, so that the combustion efficiency is further improved.

Referring to fig. 1 and 8, a bracket A7 is arranged on the upper end surface of the furnace body 1 in the fire stop ring 6, and the bracket A7 can be welded on the upper end surface of the furnace body 1 or can be detachable so as to be convenient for replacing the brackets A7 with different heights. In this embodiment, the bracket A7 includes an annular base 71, four support plates 72 welded to the base 71, and an arc-shaped baffle 73 welded vertically to the upper end surface of the base 71. The baffle 73 is disposed adjacent to the outlet port 63 and opposite the outlet port 63, and the baffle 73 is sized larger than the outlet port 63. Support to the cooking utensil is realized through setting up support A7, through setting up curved baffle 73, realizes the shielding to outlet port 63, avoids flame and heat in the stove core 3 to run off in the outlet port 63.

Referring to fig. 3, an L-shaped air duct 17 with a hollow structure is welded on the outer side of the furnace body 1, the air duct 17 is communicated with the ventilation opening 11, a limiting frame 18 facing the furnace body is welded on the outer side of the air duct 17, an air outlet of the fan 5 is arranged in the air duct 17 in a penetrating manner, and the fan 5 is abutted against the limiting frame 18. Through setting up air pipe 17, can be convenient for the installation of fan 5, when needs use fan 5, place the air outlet of fan 5 in air pipe 17, spacing 18 is spacing and fixed the organism of fan 5.

Examples

Referring to fig. 10 and 11, this embodiment is different from embodiment 1 in the structure of the bracket A7, and in order to facilitate the distinction from the bracket A7 in embodiment 1, the bracket is named bracket B8 in this embodiment.

The support B8 in this embodiment is disposed on the upper end surface of the furnace body 1 in the fire stop ring 6, and the support B8 may be welded on the upper end surface of the furnace body 1, or may be detachable, so as to facilitate replacement of the supports B8 with different heights. In this embodiment, the support B8 comprises a support ring 81, the inner diameter of the support ring 81 being larger than the inner diameter of the furnace core 3, the height of the support ring 81 being lower than the height of the firestop ring 6. A bracket notch 82 is formed in the bracket B8 near the feed inlet 61, and the transverse dimension of the bracket notch 82 is larger than that of the feed inlet 61. Through setting up support ring 81 and support breach 82, the flame of drunkenness in from the stove core 3 can escape from support breach 82, and gets into outlet 63 through the annular channel between support ring 81 and the fire-blocking ring 6, in this process, has realized biomass fuel's afterburning, and can increase the heated area of cooking utensil to further realize energy saving and consumption reduction's effect.

When the device is used in the embodiments 1 and 2, the bracket A or the bracket B and the fire-blocking ring 6 are sequentially arranged on the upper end surface of the furnace body 1 from inside to outside, the air outlet of the fan 5 is clamped in the air duct 17, the ash discharging door 13 is opened, the fastening bolt 14 is screwed to fix the ash discharging door 13, the biomass fuel is placed in the furnace core 3, the fan 5 is started after ignition, the natural air inlet at the lower part of the furnace core 3, the forced air inlet at the side part and the flame in the furnace core 3 are rotated and lifted, and the cooker is placed on the bracket A or the bracket B to realize the rapid heating of the cooker.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a biomass combustion furnace, includes the furnace body, be in furnace that the furnace body is embedded establishes, be in the furnace core that the furnace is embedded establishes and be in ash discharging frame that furnace core bottom was embedded establishes, its characterized in that: a plurality of ventilation holes which are coaxially arranged and penetrate through the hearth and the furnace core are formed in the outer circumferences of the hearth and the furnace core, a plurality of layers of ventilation holes are formed in the length direction of the hearth, and each ventilation hole of each layer is inclined towards the upper end opening of the hearth and is formed in the same direction; the furnace body is provided with a vent, the vent is communicated with the vent, the fan is fixed on the outer side of the furnace body, and the air outlet of the fan is communicated with the vent; the lower part of the furnace body is provided with an ash discharge hole which is communicated with the lower end opening inside the furnace core.

2. A biomass burner as claimed in claim 1, wherein: each layer of a plurality of vent holes are arranged in a spiral ascending direction by taking a furnace axis as a center, each vent hole is arranged along the spiral ascending direction, and each vent hole is obliquely arranged along the upper end opening of the furnace in the spiral ascending direction.

3. A biomass burner as claimed in claim 2, wherein: the fire stopping device is characterized in that a fire stopping ring is arranged on the upper end face of the furnace body, a feeding hole is formed in the fire stopping ring, long-strip-shaped air inlet through grooves are formed in the fire stopping rings on two sides of the feeding hole, the inner diameter of the fire stopping ring is larger than that of a furnace core, and a smoke outlet is formed in the fire stopping ring opposite to the feeding hole.

4. A biomass burner according to claim 3, wherein: the fire stopping ring is characterized in that a support is arranged on the upper end face of the furnace body in the fire stopping ring, a baffle is vertically arranged on the support, the baffle is close to the smoke outlet and is arranged opposite to the smoke outlet, and the size of the baffle is larger than that of the smoke outlet.

5. A biomass burner according to claim 3, wherein: the upper end face of the furnace body in the fire blocking ring is provided with a bracket, a bracket notch is formed in the bracket near the feeding hole, and the transverse size of the bracket notch is larger than that of the feeding hole.

6. A biomass burner as claimed in claim 1, wherein: the air conditioner is characterized in that an L-shaped air duct is fixedly connected to the outer side of the furnace body, the air duct is communicated with a vent, a limiting frame facing the furnace body is fixedly connected to the outer side of the air duct, and an air outlet of the fan is arranged in the air duct in a penetrating mode and is abutted to the limiting frame.

7. A biomass burner as claimed in claim 1, wherein: the furnace body is fixedly connected with an ash discharging pipeline outside the furnace body, the ash discharging pipeline is communicated with an ash discharging hole, an ash discharging door which can rotate and seal the ash discharging pipeline is arranged at the opening of the ash discharging pipeline, a fastening bolt penetrates through the ash discharging door and is connected onto the ash discharging pipeline in a threaded mode, and when the fastening bolt is screwed, the ash discharging door can be fixed at a certain position.

8. A biomass burner as claimed in claim 7 wherein: a handle is arranged on the outer side end face of the ash discharging door.