Biomass particle stove

Abstract

The biomass particle stove comprises a stove body, an ignition device and a fan, the stove body comprises a stove base, a stove body, a stove panel, an outer stove core, an inner stove core, a smoke exhaust cavity and a smoke exhaust pipe, a feeding device communicated with the inner stove core is arranged on the outer side of the stove body, the fan is arranged on the stove base, and the ignition device is arranged on the stove base. An air supply device communicated with the fan is arranged in the furnace seat, the fan is communicated with the inner furnace core through the air supply device, and the ignition device is arranged in the inner furnace core and is close to the bottom of the inner furnace core. By the adoption of the stove, fuel can be fully combusted, the combustion efficiency is high, the energy utilization rate is high, energy consumption is small, the use cost can be effectively reduced, the purposes of energy conservation and emission reduction are achieved, and the stove is simple in overall structure, convenient to operate and use, safe, practical and worthy of application and popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of combustion stoves in daily life, in particular to a biomass particle stove. Background Art

[0002] As a renewable energy source, biomass pellet fuel is gradually attracting people's attention. Biomass pellet fuel has many advantages, making it an ideal choice for energy conservation and environmental protection. Biomass pellet fuel is mainly made of biomass materials (such as wood chips, straw, rice husks, etc.) through compression processing. These biomass materials were originally agricultural and forestry wastes. By converting them into fuel, we can not only reduce dependence on traditional fossil fuels, but also effectively utilize waste resources. Compared with traditional fuels, biomass pellet fuel has significant energy-saving advantages. It has a high calorific value and can provide stable and lasting heat energy, thereby reducing energy consumption. In addition, biomass pellet fuel has high combustion efficiency, which can make fuller use of fuel and reduce energy waste.

[0003] Biomass pellet stoves are new environmentally friendly stoves that use biomass pellets as fuel. They have good heating effect, high thermal efficiency, no smoke and dust, energy saving and environmental protection, high safety performance, and are conducive to indoor air circulation, fast heating, and pleasant air dryness and humidity. As a renewable energy source that is energy-saving and environmentally friendly, biomass pellet fuel has great potential and broad application prospects when applied to biomass pellet stoves. Through the widespread application of biomass pellet fuel, the goal of energy conservation and emission reduction can be achieved, and sustainable development can be promoted.

[0004] The biomass pellet stove in the prior art mainly includes a panel, a furnace body and a furnace core. A furnace bridge, a fireproof plate and an ash box are provided at the lower side of the furnace body, and a fuel tank and a smoke outlet are provided at the side of the furnace body. A fuel port, an ignition device, a bellows and a blower are provided at the bottom of the furnace core. A propulsion device is provided at the bottom of the fuel tank, and the propulsion device is connected to the fuel port of the furnace core. The main problems in the actual application of the existing biomass pellet stove are: during the long-term use of the stove, firstly, the temperature at the bottom of the furnace core is high, which easily causes damage to the ignition device; secondly, the added fuel is located on the furnace bridge, and air can only be input into the furnace core from the bottom of the furnace bridge, so that the air outside the furnace core cannot better assist the fuel in the furnace core for secondary combustion, resulting in incomplete combustion of the fuel.

[0005] After searching, the patent document with application publication number CN114719248A discloses a biomass pellet stove, the patent document with authorization announcement number CN212299070U discloses a biomass pellet heating stove, and the patent document with authorization announcement number CN213453734U discloses a biomass pellet heating stove. From the contents disclosed in the three retrieved patent documents, a stove that meets the use requirements is provided from different angles. In order to improve the combustion efficiency of the fuel and make full use of the generated heat, it is necessary to improve the existing biomass pellet stove, which can not only make the fuel fully burn, but also reduce the fuel material, thereby reducing the use cost. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a stove with simple structure and convenient operation in view of the problems existing in the background technology. By using the stove and adopting biomass pellets as fuel, not only can the fuel be fully burned, thereby improving the combustion efficiency of the fuel, but also the fuel consumption can be reduced, thereby reducing the use cost. Specifically, it is a biomass pellet stove.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a biomass pellet stove, including a stove body, an ignition device and a fan, the stove body including a stove base, a stove body, a stove panel, an outer stove core, an inner stove core, a smoke exhaust cavity and a smoke exhaust pipe, the stove body is arranged on the stove base, the outer stove core and the inner stove core are coaxially arranged in the stove body and extend downward into the stove base, an outer heat cavity is formed between the stove body and the outer stove core, and an inner heat cavity is formed between the outer stove core and the inner stove core The furnace panel is arranged on the top of the furnace body, the smoke exhaust cavity is communicated with the external heat cavity through the furnace body, and the smoke exhaust pipe is arranged on the smoke exhaust cavity away from the furnace body; a furnace bridge, a fire sealing plate and an ash box are arranged on the lower side of the inner furnace core; a feeding device communicated with the inner furnace core is arranged on the outside of the furnace body, the fan is arranged on the furnace base, and an air supply device communicated with the fan is arranged in the furnace base, the fan is communicated with the inner furnace core through the air supply device, and the ignition device is arranged in the inner furnace core and close to its bottom.

[0008] Furthermore, the biomass pellet stove described in the utility model also includes a control panel, which is installed on the feeding device. The ignition device, the fan and the feeding device are electrically connected to the control panel respectively. The control panel adopts a PLC control panel with a power connector, and control buttons are provided in the control panel.

[0009] Furthermore, the utility model describes a biomass pellet stove, wherein the inner furnace core comprises a furnace core inner barrel, a furnace core outer barrel and a sealing cover, the furnace core inner barrel and the furnace core outer barrel constitute a sandwich structure with an air inlet cavity, sealing covers are provided on the top and bottom of the furnace core inner barrel and the furnace core outer barrel, a plurality of combustion-supporting holes communicated with the air inlet cavity are provided on the furnace core inner barrel, a secondary air inlet hole communicated with the air inlet cavity is provided in the middle and upper part of the furnace core outer barrel, the air supply device is communicated with the air inlet cavity through the secondary air inlet hole; the feeding device passes through the furnace body and the outer furnace core, and is communicated with the inner furnace core; the ignition device is arranged in the inner furnace core, and is close to its bottom; the fire sealing plate is in contact with the bottom of the inner furnace core, and the ash box is located in the furnace seat below the fire sealing plate.

[0010] Furthermore, the utility model describes a biomass pellet stove, wherein the feeding device includes a feeding chamber, a feeding pipe, a guide pipe, an auger and a driving motor, the feeding pipe being arranged on the outer side of the furnace body above the furnace base, the feeding chamber being arranged on the top of the feeding pipe, and a feeding port communicating with the feeding pipe being arranged at the bottom of the feeding chamber, the auger being arranged in the feeding pipe, the auger being connected to an output shaft of a driving motor installed at the rear end of the feeding pipe, and guide holes corresponding to the guide pipe being arranged on the furnace body, the outer furnace core and the inner furnace core respectively, the guide pipe being connected to the furnace body, the outer furnace core and the inner furnace core through the guide holes, the feed end of the guide pipe being connected to the discharge end of the feeding pipe, and the driving motor being electrically connected to the control panel.

[0011] Furthermore, in the biomass pellet stove described in the utility model, the feeding pipe is arranged in an inclined state on the outer side of the furnace body above the furnace base, and its discharge end is located higher than the feed end; and the guide pipe is configured as a tube body structure or a trough body structure, and the guide pipe is arranged in an inclined state between the furnace body, the outer furnace core and the inner furnace core, and its discharge end is located lower than the feed end.

[0012] Furthermore, the utility model describes a biomass pellet stove, wherein the air supply device includes a buffer air supply chamber, an air inlet pipe, a first air outlet pipe, a second air outlet pipe and an electromagnetic control valve, the buffer air supply chamber is installed in the stove base and connected to the lower side of the stove core outer barrel constituting the inner stove core, the stove core outer barrel is provided with a primary air inlet hole communicating with the buffer air supply chamber, the buffer air supply chamber is communicated with the air outlet end of the fan through the air inlet pipe, the buffer air supply chamber is communicated with the ignition device through the first air outlet pipe, and the buffer air supply chamber is connected to the secondary air inlet hole through the second air outlet pipe; the electromagnetic control valve includes an ignition control valve and a secondary air inlet control valve, the ignition control valve is installed in the first air outlet pipe, and the secondary air inlet control valve is installed in the second air outlet pipe, the ignition control valve and the secondary air inlet control valve are electrically connected to the control panel respectively.

[0013] Furthermore, in the biomass pellet stove described in the utility model, the ignition device includes an air supply pipe and an electronic ignition rod, the air supply pipe is made of high-temperature resistant metal material to form a tube body structure, the electronic ignition rod is arranged in the air supply pipe, the buffer air supply chamber is connected to the air supply pipe through the first air outlet pipe, and the electronic ignition rod is electrically connected to the control panel; the air supply pipe passes through the outer barrel of the furnace core and extends into the inner barrel of the furnace core.

[0014] Furthermore, the biomass pellet stove described in the utility model also has a material-saving cover in the inner furnace core, and the material-saving cover is arranged in a conical structure that is small at the top and large at the bottom. The material-saving cover is arranged in an inner cavity on one side close to the bottom of the inner barrel of the furnace core, and the furnace bridge is arranged on the top of the material-saving cover. The furnace bridge and the material-saving cover form an integrated structure, and a plurality of air inlet holes are arranged on the side of the material-saving cover; the air supply pipe passes through the outer barrel of the furnace core and the inner barrel of the furnace core in turn, and extends to the center position of the bottom of the material-saving cover.

[0015] Furthermore, in a biomass pellet stove described in the utility model, the top surfaces of the outer furnace core and the inner furnace core in the furnace body are in the same plane, a removable first fire-proof plate is provided on the top of the outer furnace core, and a removable second fire-proof plate is provided on the top of the inner furnace core; the furnace panel is arranged to be a circular or square structure, an insulating furnace ring is provided at the center of the furnace panel, the insulating furnace ring is composed of an outer furnace ring and an inner furnace ring, the outer furnace ring and the inner furnace ring are arranged to be circular structures matching each other, and are located directly above the outer furnace core.

[0016] Furthermore, the biomass pellet stove described in the utility model is also provided with a support frame for supporting the fire sealing plate on the outer side of the inner furnace core, a connecting rod is provided on one side of the fire sealing plate, and an ash discharge rod is provided on the other side, the fire sealing plate is movably connected to the support frame through the connecting rod, and the ash discharge rod passes through the side wall of the furnace seat and extends outward to the outside of the furnace seat, and under the action of external force, the fire sealing plate and the bottom of the inner furnace core are driven to be in an open or closed state through the ash discharge rod; the ash box is located in the furnace seat below the fire sealing plate.

[0017] A biomass pellet stove described in the utility model is adopted. Firstly, by utilizing a feeding device arranged on the outside of the furnace body and communicating with the inner furnace core, automatic feeding can be realized by driving the auger to rotate through a driving motor; secondly, since an air supply device communicating with the fan is also arranged in the furnace base, the air supply device comprises a buffer air supply chamber, an air inlet pipe, a first air outlet pipe, a second air outlet pipe and an electromagnetic control valve, and air is input into the inner furnace core by utilizing the buffer air supply chamber. In addition to providing oxygen during ignition, the air can also participate in secondary combustion, thereby making the fuel burn more fully, which can improve the combustion efficiency of the fuel; thirdly, since a material-saving cover is arranged at the bottom of the inner furnace core, the effective height of the inner furnace core can be reduced by the material-saving cover, thereby reducing the fuel consumption and reducing the use cost; fourthly, since the ignition device comprises an air supply pipe and an electronic ignition rod, the electronic ignition rod is arranged in the air supply pipe, and the air supply pipe is made of high-temperature resistant metal material to form a tube structure, thereby avoiding damage to the ignition device due to excessively high temperature at the bottom of the furnace core.

[0018] It can be seen that the use of the biomass pellet stove described in the utility model uses biomass pellets as fuel, which can not only make the fuel burn fully, with high combustion efficiency, high energy utilization rate, and low energy consumption, thereby improving the combustion efficiency of the fuel, but also reduce fuel materials, thereby effectively reducing the use cost and achieving the purpose of energy conservation and emission reduction. Its overall structure is simple, easy to operate and use, safe and practical, and worthy of popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model after the furnace panel is removed;

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0023] Figure 4 for Figure 3 A schematic diagram of the structure showing the magnified local structure at A in the middle;

[0024] Figure 5 It is a structural schematic diagram of the inner furnace core described in the utility model.

[0025] As shown in the figure: 1-stove body, 11-base, 12-furnace body, 13-furnace panel, 14-outer furnace core, 15-inner furnace core, 151-furnace core inner barrel, 152-furnace core outer barrel, 153-sealing cover, 154-combustion hole, 16-smoke exhaust cavity, 17-smoke exhaust pipe, 18-furnace bridge, 19-fire sealing plate, 120-ash box, 121-first fire sealing plate, 122-second fire sealing plate, 123-insulating furnace ring, 124-support frame, 125-connecting rod, 126-ash discharge rod, 2 - ignition device, 21- air supply pipe, 22- electronic ignition rod, 3- fan, 4- control panel, 5- feeding device, 51- feeding chamber, 52- feeding pipe, 53- material guide pipe, 54- auger, 55- driving motor, 6- air supply device, 61- buffer air supply chamber, 62- air inlet pipe, 63- first air outlet pipe, 64- second air outlet pipe, 65- ignition control valve, 66- secondary air inlet control valve, 67- primary air inlet hole, 68- secondary air inlet hole, 7- material section cover, 71- air inlet hole. DETAILED DESCRIPTION

[0026] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0027] It should be noted that the structures, proportions, sizes, etc. drawn in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", etc. quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "provided with" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] It should be noted that the term "comprise" or any other variation is intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus. Example 1

[0030] like Figures 1 to 5 As shown, a biomass pellet stove described in this embodiment includes a stove body 1, an ignition device 2, a fan 3 and a control panel 4. The stove body 1 includes a stove base 11, a stove body 12, a stove panel 13, an outer stove core 14, an inner stove core 15, a smoke exhaust cavity 16 and a smoke exhaust pipe 17. The stove body 12 is arranged on the stove base 11, and the outer stove core 14 and the inner stove core 15 are coaxially arranged in the stove body 12 and extend downward into the stove base 11. An outer heat cavity is formed between the stove body 12 and the outer stove core 14, and an inner heat cavity is formed between the outer stove core 14 and the inner stove core 15. The stove panel 13 is arranged on the top of the stove body 12, and the smoke exhaust cavity 16 is communicated with the outer heat cavity through the stove body 12. The smoke exhaust pipe 17 is arranged at On the smoke exhaust cavity 16 away from the side of the furnace body 12; a furnace bridge 18, a fire sealing plate 19 and an ash box 120 are provided on the lower side of the inner furnace core 15; a feeding device 5 communicated with the inner furnace core 15 is provided on the outside of the furnace body 12, the fan 3 is arranged on the furnace base 11, and an air supply device 6 communicated with the fan 3 is provided in the furnace base 11, the fan 3 is communicated with the inner furnace core 15 through the air supply device 6, the ignition device 2 is arranged in the inner furnace core 15 and close to the bottom thereof, the control panel 4 is installed on the feeding device 5, and the ignition device 2, the fan 3 and the feeding device 5 are electrically connected to the control panel 4 respectively; wherein, the control panel 4 adopts a PLC control panel with a power connector, and a control button is provided in the control panel 4.

[0031] Furthermore, a biomass pellet stove described in this embodiment is used, wherein the inner stove core 15 comprises a stove core inner barrel 151, a stove core outer barrel 152 and a sealing cover 153, wherein the stove core inner barrel 151 and the stove core outer barrel 152 form a sandwich structure with an air inlet cavity, and sealing covers 153 are provided on the top and bottom of the stove core inner barrel 151 and the stove core outer barrel 152, and a plurality of combustion-supporting holes 154 communicating with the air inlet cavity are provided on the stove core inner barrel 151. A secondary air inlet hole 68 communicating with the air inlet cavity is provided in the middle and upper part of the furnace core outer barrel 152, and the air supply device 6 is communicated with the air inlet cavity through the secondary air inlet hole 68; the feeding device 5 passes through the furnace body 12 and the outer furnace core 14, and is communicated with the inner furnace core 15; and the ignition device 2 is arranged in the inner furnace core 15, and close to its bottom; the fire sealing plate 19 is in contact with the bottom of the inner furnace core 15, and the ash box 120 is located in the furnace base 11 below the fire sealing plate 19.

[0032] Among them, the feeding device 5 includes a feeding chamber 51, a feeding pipe 52, a guide pipe 53, an auger 54 and a driving motor 55. The feeding pipe 51 is arranged on the outer surface of the furnace body 12 above the furnace seat 11, and the feeding chamber 51 is arranged at the top of the feeding pipe 52. A feeding port communicating with the feeding pipe 52 is arranged at the bottom of the feeding chamber 51. The auger 54 is arranged in the feeding pipe 52. The auger 54 is connected to the output shaft of the driving motor 55 installed at the rear end of the feeding pipe 52. Guide holes corresponding to the guide pipe 53 are respectively provided on the furnace body 12, the outer furnace core 14 and the inner furnace core 15. The guide pipe 53 is connected to the furnace body 12, the outer furnace core 14 and the inner furnace core 15 through the guide holes. The feed end of the guide pipe 53 is connected to the discharge end of the feeding pipe 52, and the driving motor 55 is electrically connected to the control panel 4.

[0033] The air supply device 6 includes a buffer air supply chamber 61, an air inlet pipe 62, a first air outlet pipe 63, a second air outlet pipe 64 and an electromagnetic control valve. The buffer air supply chamber 61 is installed in the furnace seat 11 and is connected to the lower side of the furnace core outer barrel 152 constituting the inner furnace core 15. A primary air inlet hole 67 communicating with the buffer air supply chamber 61 is provided on the furnace core outer barrel 152. The buffer air supply chamber 61 is communicated with the air outlet end of the fan 3 through the air inlet pipe 62. The buffer air supply chamber 61 is communicated with the ignition device 2 through the first air outlet pipe 63. The buffer air supply chamber 61 is connected to the secondary air inlet hole 68 through the second air outlet pipe 64; the electromagnetic control valve includes an ignition control valve 65 and a secondary air inlet control valve 66. The ignition control valve 65 is installed in the first air outlet pipe 63, and the secondary air inlet control valve 66 is installed in the second air outlet pipe 64. The ignition control valve 65 and the secondary air inlet control valve 66 are electrically connected to the control panel 4 respectively.

[0034] The ignition device 2 includes an air supply pipe 21 and an electronic ignition rod 22. The air supply pipe 21 is made of high-temperature resistant metal material to form a tube structure. The electronic ignition rod 22 is arranged in the air supply pipe 21. The buffer air supply chamber 61 is connected to the air supply pipe 21 through the first air outlet pipe 63. The electronic ignition rod 22 is electrically connected to the control panel 4; the air supply pipe 21 passes through the outer barrel 152 of the furnace core and extends to the inner barrel 151 of the furnace core.

[0035] Furthermore, a biomass pellet stove as described in this embodiment is adopted, the feeding pipe 52 is arranged in an inclined state on the outer surface of the furnace body 12 above the furnace base 11, and its discharge end position is higher than the feed end position; and the guide pipe 53 is configured as a tube body structure or a trough body structure, and the guide pipe 53 is arranged in an inclined state between the furnace body 12, the outer furnace core 14 and the inner furnace core 15, and its discharge end position is lower than the feed end position.

[0036] Furthermore, a biomass pellet stove as described in this embodiment is adopted, the top surfaces of the outer furnace core 14 and the inner furnace core 15 in the furnace body 12 are in the same plane, a removable first fire-proof plate 121 is provided on the top of the outer furnace core 14, and a removable second fire-proof plate 122 is provided on the top of the inner furnace core 15; the furnace panel 13 is configured as a circular or square structure, and an insulating furnace ring 123 is provided at the center of the furnace panel 13, the insulating furnace ring 123 is composed of an outer furnace ring and an inner furnace ring, the outer furnace ring and the inner furnace ring are configured as mutually matching circular structures, and are located directly above the outer furnace core 14.

[0037] Furthermore, a biomass pellet stove described in this embodiment is used, and a support frame 124 for supporting the fire-proofing plate 19 is further provided on the outside of the inner furnace core 15, a connecting rod 125 is provided on one side of the fire-proofing plate 19, and an ash discharge rod 126 is provided on the other side, and the fire-proofing plate 19 is movably connected to the support frame 123 through the connecting rod 125, and the ash discharge rod 126 passes through the side wall of the furnace seat 11 and extends outward to the outside of the furnace seat 11. Under the action of external force, the fire-proofing plate 19 and the bottom of the inner furnace core 15 are driven to be in an open or closed state through the ash discharge rod 126; the ash box 120 is located in the furnace seat 11 below the fire-proofing plate 19. The support frame 124 provided on the outside of the inner furnace core 15 can play a role in supporting the fire-proofing plate 19, and the ash discharge rod 126 is pulled by hand to drive the fire-proofing plate 19 to move back and forth, thereby achieving the purpose of ash discharge and fire-proofing. Example 2

[0038] This embodiment is based on the embodiment 1. In order to reduce the fuel consumption and make the added fuel burn more fully, a fuel saving cover 7 is further provided in the inner furnace core 15. The fuel saving cover 7 is provided in a conical structure with a small top and a large bottom. The fuel saving cover 7 is provided in the inner cavity near the bottom side of the furnace core inner barrel 151, and the furnace bridge 18 is provided on the top of the fuel saving cover 7. The furnace bridge 18 and the fuel saving cover 7 form an integral structure, and a plurality of air inlet holes 71 are provided on the side of the fuel saving cover 7; the air supply pipe 21 passes through the furnace core outer barrel 152 and the furnace core inner barrel 151 in sequence, and extends to the bottom center of the fuel saving cover 7. By providing the fuel saving cover 7 at the bottom of the inner furnace core 15, the height of the furnace core inner barrel 151 is reduced by using the fuel saving cover 7, thereby achieving the purpose of reducing its volume, so that less fuel can be added, thereby reducing the material cost.

[0039] By using the biomass pellet stove described in the utility model, in actual application, according to different user requirements, the structure of the stove base 11 and the stove panel 13 can be set to a square or circular structure, or the stove body 12, the outer stove core 14, and the inner stove core 15 can be set to a cylindrical structure or a square structure, or according to user requirements, the structure of the stove base 11, the stove body 12, the stove panel 13, the outer stove core 14, and the inner stove core 15 can be set to other shapes, as long as they match each other and can meet their strength requirements.

[0040] In addition, the control panel 4, the fan 3 and the electronic ignition rod 22 in the ignition device 2, the auger 54 and the drive motor 55 in the feeding device 5, and the electromagnetic control valve used in the air supply device 6 used in the stove of the utility model are all commonly used equipment in the prior art and can be directly purchased on the existing market without involving any changes to their structures. They are applied to the utility model for the purpose of achieving convenient operation and realizing automatic feeding and automatic ignition. Therefore, there are no requirements for their specific models or specifications, as long as they match each other and meet the use requirements.

[0041] The working principle of the stove described in the utility model is as follows: the biomass particle raw material is put into the feeding chamber 51 in advance through the provided feeding device 5, and the auger 54 provided in the feeding pipe 52 is driven to rotate by the driving motor 55, and automatic feeding can be achieved by using the guide pipe 53; at the same time, since an air supply device 6 communicated with the fan 3 is also provided in the furnace seat 11, the air supply device 6 includes a buffer air supply chamber 61, an air inlet pipe 62, a first air outlet pipe 63, a second air outlet pipe 64 and an electromagnetic control valve, the buffer air supply chamber 61 is communicated with the air supply pipe 21 in the ignition device 2 through the first air outlet pipe 63, so that the ignition device 2 can be provided with the oxygen required for ignition, and a secondary air inlet hole 68 communicated with the air inlet cavity is provided in the middle and upper part of the outer barrel 152 of the furnace core, and is connected to the secondary air inlet hole 68 through the second air outlet pipe 64, so that air can be input into the inner furnace core 15, and The barrel 152 is provided with a primary air inlet 67 which is connected to the buffer air supply chamber 61. Air can be directly input into the inner furnace core 15 through the buffer air supply chamber 61, and the input air participates in the secondary combustion, so that the fuel burns more fully, which can improve the combustion efficiency of the fuel; in addition, since the ignition device 2 includes an air supply pipe 21 and an electronic ignition rod 22, the air supply pipe 21 is made of high-temperature resistant metal material to form a tube body structure, the electronic ignition rod 22 is arranged in the air supply pipe 21, and the buffer air supply chamber 61 is connected to the air supply pipe 21 through the first air outlet pipe 63, and the electronic ignition rod 22 is electrically connected to the control panel 4; the air supply pipe 21 passes through the outer barrel 152 of the furnace core and extends to the inner barrel 151 of the furnace core. When the electronic ignition rod 22 is energized, it will become hot, and together with the input gas, the granular fuel in the inner barrel 151 of the furnace core can be heated, thereby realizing the ignition operation. When the gas supply pipe 21 is damaged, it can be replaced in time, which can increase the service life of the electronic ignition rod 22 and avoid damage due to overheating.

[0042] To sum up, the biomass pellet stove described in the utility model uses biomass pellets as fuel, which can not only make the fuel burn fully, with high combustion efficiency, high energy utilization rate, and low energy consumption, thereby improving the combustion efficiency of the fuel, but also reduce fuel materials, thereby effectively reducing the use cost and achieving the purpose of energy conservation and emission reduction. Its overall structure is simple, easy to operate and use, safe and practical, and worthy of popularization.

[0043] Other details of the present invention are all conventional techniques known to those skilled in the art.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A biomass pellet stove, comprising a stove body (1), an ignition device (2) and a fan (3), characterized in that: The stove body (1) comprises a stove base (11), a stove body (12), a stove panel (13), an outer stove core (14), an inner stove core (15), a smoke exhaust cavity (16) and a smoke exhaust pipe (17); the stove body (12) is arranged on the stove base (11); the outer stove core (14) and the inner stove core (15) are coaxially arranged in the stove body (12) and extend downward into the stove base (11); an outer heat cavity is formed between the stove body (12) and the outer stove core (14); and an inner heat cavity is formed between the outer stove core (14) and the inner stove core (15); the stove panel (13) is arranged on the top of the stove body (12); and the smoke exhaust cavity (16) is provided through the stove base (11). The furnace body (12) is in communication with the external heat cavity, and the smoke exhaust pipe (17) is arranged on the smoke exhaust cavity (16) on the side away from the furnace body (12); a furnace bridge (18), a fire sealing plate (19) and an ash box (120) are arranged on the lower side of the inner furnace core (15); a feeding device (5) in communication with the inner furnace core (15) is arranged on the outer side of the furnace body (12), the fan (3) is arranged on the furnace base (11), and an air supply device (6) in communication with the fan (3) is arranged in the furnace base (11), and the fan (3) is in communication with the inner furnace core (15) through the air supply device (6), and the ignition device (2) is arranged in the inner furnace core (15) and close to the bottom thereof.

2. The biomass pellet stove according to claim 1, characterized in that: The invention also comprises a control panel (4), wherein the control panel (4) is mounted on the feeding device (5), the ignition device (2), the fan (3) and the feeding device (5) are respectively electrically connected to the control panel (4), the control panel (4) is a PLC control panel with a power connector, and a control button is arranged in the control panel (4).

3. A biomass pellet stove according to claim 2, characterized in that: The inner furnace core (15) comprises a furnace core inner barrel (151), a furnace core outer barrel (152) and a sealing cover (153); the furnace core inner barrel (151) and the furnace core outer barrel (152) form a sandwich structure with an air inlet cavity; the sealing cover (153) is provided at the top and bottom of the furnace core inner barrel (151) and the furnace core outer barrel (152); a plurality of combustion-supporting holes (154) communicating with the air inlet cavity are provided on the furnace core inner barrel (151); and a sealing cover (153) is provided at the middle and upper part of the furnace core outer barrel (152). The secondary air inlet hole (68) is connected to the air inlet cavity, and the air supply device (6) is connected to the air inlet cavity through the secondary air inlet hole (68); the feeding device (5) passes through the furnace body (12) and the outer furnace core (14), and is connected to the inner furnace core (15); and the ignition device (2) is arranged in the inner furnace core (15) and close to its bottom; the fire sealing plate (19) is in contact with the bottom of the inner furnace core (15), and the ash box (120) is located in the furnace base (11) below the fire sealing plate (19).

4. The biomass pellet stove according to claim 3, characterized in that: The feeding device (5) comprises a feeding chamber (51), a feeding pipe (52), a material guide pipe (53), an auger (54) and a driving motor (55); the feeding pipe (52) is arranged on the outer side of the furnace body (12) above the furnace seat (11); the feeding chamber (51) is arranged on the top of the feeding pipe (52); a feeding port communicating with the feeding pipe (52) is arranged at the bottom of the feeding chamber (51); the auger (54) is arranged in the feeding pipe (52); the auger (54) is connected to the installation The furnace body (12), the outer furnace core (14) and the inner furnace core (15) are respectively provided with material guide holes corresponding to the material guide pipe (53); the material guide pipe (53) is connected to the furnace body (12), the outer furnace core (14) and the inner furnace core (15) through the material guide holes; the feed end of the material guide pipe (53) is connected to the discharge end of the feeding pipe (52); and the driving motor (55) is electrically connected to the control panel (4).

5. The biomass pellet stove according to claim 4, characterized in that: The feeding pipe (52) is arranged in an inclined state on the outer surface of the furnace body (12) above the furnace seat (11), and its discharge end is located higher than the feed end; and the guide pipe (53) is configured as a tube structure or a trough structure, and the guide pipe (53) is arranged in an inclined state between the furnace body (12), the outer furnace core (14) and the inner furnace core (15), and its discharge end is located lower than the feed end.

6. The biomass pellet stove according to claim 3, characterized in that: The air supply device (6) comprises a buffer air supply chamber (61), an air inlet pipe (62), a first air outlet pipe (63), a second air outlet pipe (64) and an electromagnetic control valve. The buffer air supply chamber (61) is installed in the furnace seat (11) and is connected to the lower side of a furnace core outer barrel (152) constituting the inner furnace core (15). The furnace core outer barrel (152) is provided with a primary air inlet hole (67) communicating with the buffer air supply chamber (61). The buffer air supply chamber (61) is communicated with the air outlet end of the fan (3) through the air inlet pipe (62). (61) is connected to the ignition device (2) through the first air outlet pipe (63), and the buffer air supply chamber (61) is connected to the secondary air inlet hole (68) through the second air outlet pipe (64); the electromagnetic control valve includes an ignition control valve (65) and a secondary air inlet control valve (66), the ignition control valve (65) is installed in the first air outlet pipe (63), and the secondary air inlet control valve (66) is installed in the second air outlet pipe (64), and the ignition control valve (65) and the secondary air inlet control valve (66) are respectively electrically connected to the control panel (4).

7. The biomass pellet stove according to claim 6, characterized in that: The ignition device (2) comprises an air supply pipe (21) and an electronic ignition rod (22); the air supply pipe (21) is made of a high-temperature resistant metal material to form a tube structure; the electronic ignition rod (22) is arranged in the air supply pipe (21); the buffer air supply chamber (61) is connected to the air supply pipe (21) through a first air outlet pipe (63); the electronic ignition rod (22) is electrically connected to a control panel (4); the air supply pipe (21) passes through an outer barrel (152) of a furnace core and extends into an inner barrel (151) of a furnace core.

8. The biomass pellet stove according to claim 7, characterized in that: A material-saving cover (7) is also provided in the inner furnace core (15). The material-saving cover (7) is provided in a conical structure that is small at the top and large at the bottom. The material-saving cover (7) is provided in an inner cavity close to the bottom side of the furnace core inner barrel (151), and the furnace bridge (18) is provided on the top of the material-saving cover (7). The furnace bridge (18) and the material-saving cover (7) form an integral structure, and a plurality of air inlet holes (71) are provided on the side of the material-saving cover (7); the air supply pipe (21) passes through the furnace core outer barrel (152) and the furnace core inner barrel (151) in sequence, and extends to the center position of the bottom of the material-saving cover (7).

9. The biomass pellet stove according to claim 1, characterized in that: The top surfaces of the outer furnace core (14) and the inner furnace core (15) in the furnace body (12) are in the same plane, a removable first fire-proof plate (121) is provided on the top of the outer furnace core (14), and a removable second fire-proof plate (122) is provided on the top of the inner furnace core (15); the furnace panel (13) is configured as a circular or square structure, and a heat-insulating furnace ring (123) is provided at the center of the furnace panel (13), and the heat-insulating furnace ring (123) is composed of an outer furnace ring and an inner furnace ring, and the outer furnace ring and the inner furnace ring are configured as mutually matching circular structures and are located directly above the outer furnace core (14).

10. The biomass pellet stove according to claim 9, characterized in that: A support frame (124) for supporting the fire sealing plate (19) is also provided on the outer side of the inner furnace core (15), a connecting rod (125) is provided on one side of the fire sealing plate (19), and an ash discharge rod (126) is provided on the other side, the fire sealing plate (19) is movably connected to the support frame (124) through the connecting rod (125), the ash discharge rod (126) passes through the side wall of the furnace seat (11) and extends outward to the outside of the furnace seat (11), under the action of external force, the fire sealing plate (19) and the bottom of the inner furnace core (15) are driven to be in an open or closed state through the ash discharge rod (126); the ash box (120) is located in the furnace seat (11) below the fire sealing plate (19).

Images