Cooking hot air particle wood-burning fireplace with large flue

Abstract

The utility model discloses a big flue cooking hot air particle burning wood fireplace, which comprises a shell, a burning system, a particle feeding system and a smoke exhaust system, the burning system comprises a shell, a particle burning chamber, a firewood burning chamber and an ash bucket, the particle burning chamber is used for burning biomass particles, the firewood burning chamber is used for burning firewood, and the ash bucket is used for burning ash. A cooking stove and a particle adding opening are formed in the top of the shell, the particle feeding system is used for conveying biomass particles to the particle combustion chamber, and when firewood needs to be added, a furnace door is opened for adding the firewood; the biomass firewood combustion device has the advantages that biomass particles and firewood can be adopted as combustion materials at the same time by arranging the particle combustion chamber and the firewood combustion chamber, the firewood which is not fully dried can be placed in the firewood combustion chamber to be dried while the biomass particles are combusted, and the situation that the firewood cannot be fully combusted is avoided; the cooking stove is arranged, so that cooking activities such as water boiling, cooking and the like can be performed, and the purposes of the product are increased.

Description

Technical Field

[0001] This utility model relates to the field of fireplaces, specifically to a large-duct cooking hot air pellet wood fireplace. Background Technology

[0002] Existing fireplaces are mainly divided into wood-burning, gas-burning, and electric fireplaces. Among them, wood-burning fireplaces are favored because of their flame viewing and natural heat radiation characteristics, but they have the disadvantage of being limited to a single fuel source: they only support the burning of firewood, and users need to store a large amount of dry wood in advance, requiring a large storage space (a separate woodshed or ventilated area is required). Furthermore, improper control of wood humidity can easily lead to incomplete combustion, and most existing fireplaces do not have cooking functions.

[0003] Biomass pellets, as a compressed fuel, possess high calorific value and low ash content, resulting in near-neutral carbon emissions during combustion. However, their application is limited by several factors: reliance on specialized combustion equipment, requiring a screw feeding system and a sealed combustion chamber, making them incompatible with traditional wood-burning fireplaces. Traditional biomass pellet stoves use vermiculite slabs for their flues. While vermiculite slabs are relatively sturdy, they are still somewhat fragile, requiring extra care during processing, transportation, and installation. Prolonged exposure to heavy objects and friction can easily cause surface scratches and damage. Furthermore, the surface of vermiculite slabs readily absorbs water and dirt, making cleaning relatively difficult. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the above-mentioned traditional technologies and provide a large flue cooking hot air pellet wood fireplace that can simultaneously use biomass pellets and wood as combustion materials.

[0005] The purpose of this utility model is achieved through the following technical measures: a large flue cooking hot air pellet wood fireplace, comprising a shell, a combustion system, a pellet feeding system, and a smoke exhaust system. The shell includes a furnace wall and a furnace door, forming an installation cavity between the furnace wall and the furnace door. The combustion system, pellet feeding system, and smoke exhaust system are installed within the installation cavity formed between the furnace wall and the furnace door. The combustion system includes a shell, a pellet combustion chamber, a wood combustion chamber, and an ash hopper. The pellet combustion chamber is used to burn biomass pellets, and the wood combustion chamber is used to burn wood. The top of the shell has a cooking stove and a pellet adding port. The pellet feeding system is used to supply biomass pellets to the pellet combustion chamber. When wood needs to be added, the furnace door is opened to add wood. A large steel plate flue structure is provided between the combustion system and the smoke exhaust system.

[0006] As a preferred embodiment, a heater is provided between the pellet feeding system and the exhaust system, the heater being used to exhaust the heat generated by the pellet combustion chamber and the wood combustion chamber to the outside of the casing.

[0007] As a preferred embodiment, a control panel is provided on the top of the housing, which is used to control the operation of the pellet feeding system, the exhaust system and the heater.

[0008] As a preferred embodiment: the pellet feeding system includes a hopper and a dual-auger pellet propulsion device. The hopper is used to hold biomass pellet fuel, and the dual-auger pellet propulsion device includes a first auger pellet propulsion device and a second auger pellet propulsion device. The first auger pellet propulsion device is used to transport the biomass pellets in the hopper to the second auger pellet propulsion device, and the second auger pellet propulsion device transports the biomass pellets into the pellet combustion chamber.

[0009] As a preferred embodiment: the pellet combustion chamber is located below the firewood combustion chamber, the firewood combustion chamber includes a bottom plate, side plates and a front panel, the bottom plate, side plates and front panel are fixedly connected to form a placement compartment for placing firewood.

[0010] As a preferred embodiment: the base plate has several through holes, and there are two side plates, which are fixedly installed on both sides of the base plate respectively, and the front panel is fixedly installed on the end of the base plate near the furnace door.

[0011] As a preferred embodiment: the smoke exhaust system includes a fan and a smoke exhaust box, the smoke exhaust box is fixedly installed at the bottom of the housing and connected to the combustion system, and the fan is fixedly installed at the top of the smoke exhaust box.

[0012] Due to the adoption of the above technical solution, the advantages of this utility model compared with the prior art are:

[0013] This utility model discloses a large-duct cooking hot air pellet wood fireplace, including a shell, a combustion system, a pellet feeding system, and a smoke exhaust system. The combustion system includes a shell, a pellet combustion chamber, a wood combustion chamber, and an ash hopper. The pellet combustion chamber is used to burn biomass pellets, and the wood combustion chamber is used to burn firewood. The top of the shell has a cooking stove and a pellet adding port. The pellet feeding system is used to supply biomass pellets to the pellet combustion chamber. When firewood needs to be added, the furnace door is opened to add firewood. This application can use both biomass pellets and firewood as combustion materials by setting up a pellet combustion chamber and a firewood combustion chamber. While burning biomass pellets, insufficiently dried firewood can be placed in the firewood combustion chamber for drying, avoiding the situation where the firewood cannot be fully burned. The cooking stove can be used for cooking activities such as boiling water, stir-frying, and cooking, increasing the product's versatility. A large steel plate flue structure is set between the combustion system and the smoke exhaust system. The advantage is that it reduces costs compared to vermiculite boards, is sturdy and durable, not easily damaged, and easy to clean.

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0015] Appendix Figure 1 This is a three-dimensional view of the utility model of a large flue cooking hot air pellet wood fireplace.

[0016] Appendix Figure 2 This is a partial internal structure diagram of this utility model.

[0017] Appendix Figure 3 This is a partial internal structure schematic diagram from another perspective of this utility model.

[0018] Appendix Figure 4 This is a schematic diagram showing the relative positions of the combustion system, pellet feeding system, and exhaust system of this utility model.

[0019] Appendix Figure 5 This is a schematic diagram of the combustion system structure of this utility model.

[0020] Appendix Figure 6 This is a schematic diagram of the combustion system of this utility model from another perspective.

[0021] Appendix Figure 7 This is a schematic diagram of the structure of the pellet combustion chamber and the wood combustion chamber of this utility model.

[0022] Appendix Figure 8 This is a schematic diagram of the particle combustion chamber and the double-auger particle propulsion device of this utility model.

[0023] Appendix Figure 9 This is a schematic diagram of the smoke exhaust system of this utility model. Detailed Implementation

[0024] Example: As attached Figure 1 To be continued Figure 9 As shown, a large-flue cooking hot air pellet wood fireplace includes a shell 1, a combustion system 2, a pellet feeding system 3, and a smoke exhaust system 4. The shell 1 includes a furnace wall 11 and a furnace door 12, forming an installation cavity between the furnace wall 11 and the furnace door 12. The combustion system 2, the pellet feeding system 3, and the smoke exhaust system 4 are installed within the installation cavity formed between the furnace wall 11 and the furnace door 12. The combustion system 2 includes an outer shell 21, a pellet combustion chamber 22, a wood combustion chamber 23, and an ash hopper 24. The pellet combustion chamber 21 is used to burn biomass pellets, and the wood combustion chamber 22 is used to burn wood. A cooking stove 5 and a pellet adding port 6 are provided on the top of the shell 1. The pellet feeding system 3 is used to supply biomass pellets to the pellet combustion chamber 22. When wood needs to be added, the furnace door 12 is opened to add wood. A large steel plate flue structure is provided between the combustion system 2 and the smoke exhaust system 4. The advantage is that it reduces costs compared to vermiculite boards, is sturdy and durable and not easily damaged, and is easy to clean.

[0025] A heater 7 is provided between the pellet feeding system 3 and the exhaust system 4. The heater 7 is used to exhaust the heat generated by the pellet combustion chamber 22 and the wood combustion chamber 23 to the outside of the shell 1.

[0026] The top of the housing 1 is provided with a control panel 8, which is used to control the operation of the pellet feeding system 3, the smoke exhaust system 4 and the heater 7.

[0027] The pellet feeding system 3 includes a hopper 31 and a double auger pellet propulsion device 32. The hopper 31 is used to hold biomass pellet fuel. The double auger pellet propulsion device 32 includes a first auger pellet propulsion device 321 and a second auger pellet propulsion device 322. The first auger pellet propulsion device 321 is used to transport the biomass pellets held in the hopper 31 to the second auger pellet propulsion device 322. The second auger pellet propulsion device 322 transports the biomass pellets into the pellet combustion chamber 22.

[0028] The pellet combustion chamber 22 is located below the firewood combustion chamber 23. The firewood combustion chamber 23 includes a bottom plate 231, a side plate 232, and a front panel 233. The bottom plate 231, the side plate 232, and the front panel 233 are fixedly connected to form a placement compartment for placing firewood.

[0029] The base plate 231 has several through holes, and there are two side plates 232. The two side plates 232 are fixedly installed on both sides of the base plate 231, and the front panel 233 is fixedly installed on one end of the base plate 231 near the furnace door 12.

[0030] The smoke exhaust system 4 includes a fan 41 and a smoke exhaust box 42. The smoke exhaust box 42 is fixedly installed at the bottom of the housing 1 and is connected to the combustion system 2. The fan 41 is fixedly installed at the top of the smoke exhaust box 42.

[0031] When using biomass pellets as fuel, biomass pellets are added through pellet inlet 6. When adding firewood, it is added by opening furnace door 12. If the firewood is not dry enough, it can be placed in the firewood combustion chamber 23 in advance and dried by burning biomass pellets. The pellet feeding system 3 in this application is a patent that the applicant has applied for earlier and has been granted. Its ignition principle will not be described in detail.

[0032] This application, by setting up a pellet combustion chamber 22 and a wood combustion chamber 23, can simultaneously use biomass pellets and wood as combustion materials, increasing the types of fuel. While burning biomass pellets, insufficiently dried wood can be placed in the wood combustion chamber 23 for drying, avoiding the situation where the wood cannot burn completely. The cooking stove 5 can be used for cooking activities such as boiling water, stir-frying, and cooking, increasing the product's uses.

Claims

1. A large-duct cooking hot air pellet wood fireplace, characterized in that: The system includes a shell (1), a combustion system (2), a pellet feeding system (3), and a flue gas system (4). The shell (1) includes a furnace wall (11) and a furnace door (12), forming an installation cavity between the furnace wall (11) and the furnace door (12). The combustion system (2), the pellet feeding system (3), and the flue gas system (4) are installed within the installation cavity formed between the furnace wall (11) and the furnace door (12). The combustion system (2) includes an outer shell (21), a pellet combustion chamber (22), and a wood combustion chamber. The combustion chamber (23) and ash hopper (24) are provided. The pellet combustion chamber (22) is used to burn biomass pellets, and the firewood combustion chamber (23) is used to burn firewood. The top of the shell (1) is provided with a cooking stove (5) and a pellet adding port (6). The pellet feeding system (3) is used to deliver biomass pellets to the pellet combustion chamber (22). When firewood needs to be added, the furnace door (12) is opened to add firewood. A steel plate flue structure is provided between the combustion system (2) and the exhaust system (4).

2. The large flue cooking hot air pellet wood fireplace according to claim 1, characterized in that: A heater (7) is provided between the pellet feeding system (3) and the exhaust system (4). The heater (7) is used to exhaust the heat generated by the pellet combustion chamber (22) and the wood combustion chamber (23) to the outside of the shell (1).

3. The large flue cooking hot air pellet wood fireplace according to claim 2, characterized in that: The top of the housing (1) is provided with a control panel (8), which is used to control the operation of the pellet feeding system (3), the smoke exhaust system (4) and the heater (7).

4. The large flue cooking hot air pellet wood fireplace according to any one of claims 1 to 3, characterized in that: The pellet feeding system (3) includes a hopper (31) and a double screw pellet propulsion device (32). The hopper (31) is used to hold biomass pellet fuel. The double screw pellet propulsion device (32) includes a first screw pellet propulsion device (321) and a second screw pellet propulsion device (322). The first screw pellet propulsion device (321) is used to transport the biomass pellets held in the hopper (31) to the second screw pellet propulsion device (322). The second screw pellet propulsion device (322) transports the biomass pellets into the pellet combustion chamber (22).

5. The large flue cooking hot air pellet wood fireplace according to claim 4, characterized in that: The pellet combustion chamber (22) is located below the firewood combustion chamber (23). The firewood combustion chamber (23) includes a bottom plate (231), a side plate (232), and a front panel (233). The bottom plate (231), the side plate (232), and the front panel (233) are fixedly connected to form a placement compartment for placing firewood.

6. The large flue cooking hot air pellet wood fireplace according to claim 5, characterized in that: The base plate (231) has several through holes, and there are two side plates (232). The two side plates (232) are fixedly installed on both sides of the base plate (231), and the front panel (233) is fixedly installed on one end of the base plate (231) near the furnace door (12).

7. The large flue cooking hot air pellet wood fireplace according to claim 6, characterized in that: The smoke exhaust system (4) includes a fan (41) and a smoke exhaust box (42). The smoke exhaust box (42) is fixedly installed at the bottom of the housing (1) and connected to the combustion system (2). The fan (41) is fixedly installed at the top of the smoke exhaust box (42).

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