Novel biomass combustion furnace chimney device

Abstract

The utility model discloses a novel biomass combustion furnace chimney device, which relates to the technical field of combustion furnaces, and comprises a furnace body, the top of the furnace body is provided with a radiator for carrying out heat exchange on combustion flue gas, one side of the radiator is communicated with an air outlet pipe, the top of the air outlet pipe is provided with a chimney body, and the chimney body is communicated with the radiator. The chimney has the advantages that the inclined pipe is beneficial to stabilizing the airflow in the chimney, if a straight-barrel-shaped chimney is adopted, the situation that the pulling force of the chimney is not enough can be generated in the high-speed working process of a fan, the airflow in the chimney needs to be supplemented through the inclined pipe, and therefore the chimney is not prone to being damaged. Otherwise, the overall length of the chimney needs to be increased, the cost is increased, the air outlet space of the connecting pipe is blocked through movement of the baffle, and therefore the effect of adjusting the air quantity entering the chimney body is achieved, and the air speed is adjusted according to the feeding and combustion conditions in the hearth.

Description

Technical Field

[0001] This utility model relates to the field of combustion furnace technology, and in particular to a novel biomass combustion furnace chimney device. Background Technology

[0002] A biomass combustion furnace is a device that converts agricultural and forestry waste (such as straw and sawdust) or special energy crops into thermal energy. It uses controlled combustion technology to efficiently convert biomass energy into thermal or electrical energy. The combustion process achieves efficient energy conversion through gasification or direct combustion technology. The accompanying flue gas purification system can control particulate matter and harmful gas emissions. It has the dual benefits of resource recycling and low-carbon emission reduction, and is a key device for rural energy transformation and renewable energy utilization.

[0003] Biomass combustion furnaces require chimneys for flue gas exhaust. However, in existing exhaust systems, the blower is usually installed at the feed inlet, which easily leads to fuel coking, furnace blockage, and a very high failure rate. This requires frequent shutdowns for maintenance, affecting the roasting quality. Ash is also easily generated in the furnace, resulting in large amounts of smoke and dust at the chimney outlet. Simultaneously, ash accumulates easily in the radiator, affecting heat dissipation, reducing heat exchange rate, increasing heat loss, and resulting in poor energy saving. Furthermore, it increases air resistance in the furnace, leading to incomplete combustion of biomass pellets and further exacerbating the risk of coking and blockage. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A novel biomass combustion furnace chimney device includes a furnace body, a radiator for heat exchange of combustion flue gas is provided on the top of the furnace body, an air outlet pipe is connected to one side of the radiator, a chimney body is provided on the top of the air outlet pipe, an inclined pipe for stabilizing the airflow inside the chimney body is provided on the outside of the chimney body, a fan is installed on one side of the air outlet pipe, and an adjustment component for adjusting the air volume for primary combustion and secondary combustion is provided at the bottom of the air outlet pipe.

[0007] The regulating component includes a housing, an inner wall of which is fitted with a connecting pipe, and an interior baffle is provided inside the housing to block the airflow into the connecting pipe.

[0008] In a preferred embodiment of the novel biomass combustion furnace chimney device of this utility model, a mounting plate for supporting the blower is fixed on one side of the air outlet pipe, and the mounting plate is fixed to the bottom of the blower.

[0009] In a preferred embodiment of the novel biomass combustion furnace chimney device of this utility model, the air outlet end of the blower is connected to an air outlet pipe, and one end of the air outlet pipe is connected to the bottom of a connecting pipe.

[0010] As a preferred embodiment of the novel biomass combustion furnace chimney device of this utility model, the inner wall of the shell is threadedly connected to a threaded rod that drives the baffle to move, and one end of the threaded rod is fixed with a handle.

[0011] In a preferred embodiment of the novel biomass combustion furnace chimney device of this utility model, a first sealing gasket is provided on the outer side of the baffle, a second sealing gasket is provided on the outer side of the connecting pipe, and a viewing window is provided on the top of the shell.

[0012] As a preferred embodiment of the novel biomass combustion furnace chimney device of this utility model, a feed pipe is provided on the outer side of the furnace body, and a feed inlet is provided at the top of the feed pipe.

[0013] As a preferred embodiment of the novel biomass combustion furnace chimney device of this utility model, an air outlet is provided at the top of the furnace body.

[0014] The beneficial effects of this utility model are as follows: the inclined tube helps to stabilize the airflow inside the chimney. If a straight cylindrical chimney is used, the chimney pull will be insufficient during the high-speed operation of the fan. The inclined tube is needed to supplement the airflow inside the chimney. Otherwise, the overall length of the chimney will be increased, which increases the cost. By moving the baffle to block the air outlet space of the connecting pipe, the airflow entering the chimney body can be adjusted. The wind speed is adjusted according to the feeding and combustion conditions in the furnace, so that the airflow velocity in the chimney and the air intake of the primary and secondary combustion can form a good matching relationship, ensuring that the airflow in the furnace is kept in a relatively stable balance. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This is an overall structural diagram of the chimney device for a new type of biomass combustion furnace.

[0017] Figure 2 This is a schematic diagram of the connecting pipe in the chimney device of a new type of biomass combustion furnace.

[0018] Figure 3 This is a schematic diagram of the regulating component in the chimney device of a new type of biomass combustion furnace.

[0019] Figure 4 This is a schematic diagram of the shell structure in the chimney device of a new type of biomass combustion furnace.

[0020] The following are the labels in the diagram: 1. Furnace body; 2. Radiator; 3. Air outlet pipe; 4. Chimney body; 5. Inclined pipe; 6. Fan; 7. Adjustment component; 71. Shell; 72. Connecting pipe; 73. Baffle; 8. Mounting plate; 9. Air outlet pipe; 10. Threaded rod; 11. Handle; 12. First sealing gasket; 13. Second sealing gasket; 14. Viewing window; 15. Feed pipe; 16. Feed inlet; 17. Air outlet. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0024] Example 1:

[0025] Reference Figures 1-4 This is the first embodiment of the present invention. This embodiment provides a novel biomass combustion furnace chimney device, including a furnace body 1. A radiator 2 for cooling the combustion flue gas is provided on the top of the furnace body 1. An air outlet pipe 3 is connected to one side of the radiator 2. A chimney body 4 is provided on the top of the air outlet pipe 3. An inclined pipe 5 for stabilizing the airflow inside the chimney body 4 is provided on the outside of the chimney body 4. A fan 6 is installed on one side of the air outlet pipe 3. An adjusting component 7 for adjusting the air volume for primary combustion and secondary combustion is provided at the bottom of the air outlet pipe 3.

[0026] Radiator 2 is a heat pipe type heat dissipation device in the prior art, which will not be described in detail here. It achieves the effect of cooling the flue gas discharged from the furnace body 1. The inclined tube 5 is located in the middle of the chimney body 4. The inclined tube 5 is conducive to stabilizing the airflow in the chimney. If a straight-cylinder chimney is used, the chimney will not have enough lifting force when the fan 6 is working at high speed. It is necessary to supplement the airflow in the chimney through the inclined tube 5. Otherwise, the overall length of the chimney will be increased, which will increase the cost and the effect will not be obvious. The air volume of the fan 6 entering the chimney body 4 can be adjusted by adjusting component 7, thereby adjusting the primary air volume of the grate and the secondary air volume of the combustion chamber.

[0027] The regulating component 7 includes a housing 71, a connecting pipe 72 is installed on the inner wall of the housing 71, and a baffle 73 is provided inside the housing 71 to block the air intake of the connecting pipe 72.

[0028] The baffle 73 has an air outlet slot inside, and the top of the connecting pipe 72 is connected to the bottom of the air outlet pipe 3. The air volume of the blower 6 entering the chimney body 4 can be adjusted through the baffle 73. The wind speed can be adjusted according to the feeding and combustion conditions in the furnace, so that the airflow speed in the chimney and the air intake of the primary and secondary combustion can form a good matching relationship, ensuring that the airflow in the furnace is kept in a relatively stable balance.

[0029] Example 2:

[0030] This is the second embodiment of the present invention, which is based on the previous embodiment.

[0031] Specifically, a mounting plate 8 for supporting the fan 6 is fixed on one side of the air outlet duct 3, and the mounting plate 8 is fixed to the bottom of the fan 6.

[0032] The fan 6 is mounted on top of the mounting plate 8, and the mounting plate 8 supports the fan 6.

[0033] Specifically, the air outlet of the fan 6 is connected to the air outlet pipe 9, and one end of the air outlet pipe 9 is connected to the bottom of the connecting pipe 72.

[0034] When the fan 6 is started, airflow is injected into the chimney body 4 through the air outlet pipe 9. The airflow entering the chimney body 4 can be adjusted by adjusting the component 7.

[0035] Specifically, the inner wall of the housing 71 is threadedly connected to a threaded rod 10 that drives the baffle 73 to move, and a handle 11 is fixed to one end of the threaded rod 10.

[0036] One end of the threaded rod 10 is rotatably connected to one side of the baffle 73. The rotating handle 11 drives the threaded rod 10 to rotate, causing the threaded rod 10 to push the baffle 73 to move. The air outlet groove inside the baffle 73 moves into the connecting pipe 72. The movement of the baffle 73 blocks the air outlet space of the connecting pipe 72, thereby achieving the effect of regulating the air volume entering the chimney body 4. The wind speed is adjusted according to the feeding and combustion conditions in the furnace, so that the airflow speed in the chimney and the air intake of primary and secondary combustion form a good matching relationship, ensuring that the airflow in the furnace is kept in a relatively stable balance.

[0037] Specifically, a first sealing gasket 12 is provided on the outer side of the baffle 73, a second sealing gasket 13 is provided on the outer side of the connecting pipe 72, and a viewing window 14 is provided on the top of the housing 71.

[0038] Both the first sealing gasket 12 and the second sealing gasket 13 are made of silicone. The sealing performance of the connecting pipe 72 is improved by the first sealing gasket 12 and the second sealing gasket 13. The air volume adjustment progress inside the housing 71 can be observed through the viewing window 14.

[0039] Example 3:

[0040] This is the third embodiment of the present invention, which is based on the first two embodiments.

[0041] Specifically, a feed pipe 15 is provided on the outer side of the furnace body 1, and a feed inlet 16 is provided on the top of the feed pipe 15.

[0042] Fuel can be added into the furnace body 1 through the feed inlet 16 and the feed pipe 15.

[0043] Specifically, the top of the furnace body 1 is provided with an air outlet 17.

[0044] The top of the air outlet 17 is connected to the bottom of the radiator 2, and the flue gas discharged from the furnace body 1 can enter the radiator 2 for heat dissipation through the air outlet 17.

[0045] During operation, fuel can be added into the furnace body 1 through the feed inlet 16 and feed pipe 15. The top of the exhaust outlet 17 is connected to the bottom of the radiator 2, and the flue gas discharged from the furnace body 1 can enter the radiator 2 for heat dissipation through the exhaust outlet 17. The cooled flue gas enters the chimney body 4 through the exhaust pipe 3. The inclined pipe 5 helps to stabilize the airflow inside the chimney. If a straight-cylinder chimney is used, insufficient chimney pull may occur during the high-speed operation of the blower 6. The inclined pipe 5 is needed to supplement the airflow inside the chimney. Otherwise, the overall length of the chimney will need to be increased, increasing costs. The blower 6 is then started. Airflow is injected into the chimney body 4 through the exhaust pipe 9. Turning the handle 11 drives the threaded rod 10 to rotate, causing the threaded rod 10 to push the baffle 73 to move. The air outlet slot in the baffle 73 moves into the connecting pipe 72. The movement of the baffle 73 blocks the air outlet space of the connecting pipe 72, thereby achieving the effect of regulating the airflow entering the chimney body 4. The wind speed is adjusted according to the feeding and combustion conditions in the furnace, so that the airflow speed in the chimney and the air intake of primary and secondary combustion form a good matching relationship, ensuring that the airflow in the furnace is kept in a relatively stable balance.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A novel biomass combustion stove chimney arrangement comprising a stove body (1) characterised in that: The top of the furnace body (1) is provided with a radiator (2) for heat exchange of combustion flue gas, one side of the radiator (2) is communicated with an air outlet pipe (3), the top of the air outlet pipe (3) is provided with a chimney body (4), the outer side of the chimney body (4) is provided with an inclined pipe (5) for stabilizing airflow in the chimney body (4), one side of the air outlet pipe (3) is mounted with a fan (6), the bottom of the air outlet pipe (3) is provided with an adjusting assembly (7) for adjusting air volume of primary combustion and secondary combustion. The adjusting assembly (7) comprises a shell (71), the inner wall of the shell (71) is mounted with a connecting pipe (72), the inside of the shell (71) is provided with a baffle (73) for blocking air volume of the connecting pipe (72).

2. The novel biomass combustion stove chimney apparatus as claimed in claim 1, wherein: One side of the air outlet pipe (3) is fixed with a mounting plate (8) for supporting the fan (6), the mounting plate (8) is fixed at the bottom of the fan (6).

3. The novel biomass combustion stove chimney apparatus as claimed in claim 1, wherein: The air outlet end of the fan (6) is communicated with an air outlet pipe (9), one end of the air outlet pipe (9) is communicated with the bottom of the connecting pipe (72).

4. The novel biomass combustion stove chimney apparatus as claimed in claim 1, wherein: The inner wall of the shell (71) is threadedly connected with a threaded rod (10) for moving the baffle (73), one end of the threaded rod (10) is fixed with a handle (11).

5. The novel biomass combustion stove chimney apparatus as claimed in claim 1, wherein: The outer side of the baffle (73) is provided with a first sealing gasket (12), the outer side of the connecting pipe (72) is provided with a second sealing gasket (13), the top of the shell (71) is provided with a visual window (14).

6. The novel biomass combustion stove chimney apparatus of claim 1, wherein: The outer side of the furnace body (1) is provided with a feeding pipe (15), the top of the feeding pipe (15) is provided with a feeding port (16).

7. The novel biomass combustion stove chimney apparatus of claim 1, wherein: The top of the furnace body (1) is provided with an air outlet (17).

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