Tubular biomass boiler
By introducing a collection trough and a gear and rack mechanism into the tube-type biomass boiler, the problem of ash accumulation has been solved, enabling centralized collection and automatic cleaning of ash, thus improving the practicality and environmental friendliness of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-13
AI Technical Summary
When existing tubular biomass boilers are in use, the ash and residue after combustion tend to accumulate at the bottom of the boiler, making cleaning cumbersome and reducing its practicality.
A tubular biomass boiler with a collection trough was designed. The ash and slag are collected and automatically cleaned through a gear and rack mechanism. Combined with a filter box, the flue gas is filtered to improve environmental protection.
It enables convenient cleaning of ash and slag and purification of flue gas, improves the practicality and environmental friendliness of the equipment, and simplifies the operation process.
Smart Images

Figure CN223992248U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of boiler technology, and in particular to a tubular biomass boiler. Background Technology
[0002] A shell-and-tube biomass boiler is a type of boiler that uses biomass as fuel. Its core structure consists of multiple tubes (tubes) used for heat transfer and the generation of steam or hot water. Due to its high efficiency and adaptability, the shell-and-tube biomass boiler has broad application prospects in energy utilization.
[0003] When existing tubular biomass boilers are in use, the biomass fuel produces a lot of ash after combustion. The ash usually accumulates at the bottom of the boiler body, requiring manual cleaning with hand tools. This cleaning process is quite cumbersome and causes great inconvenience to the staff, making it inconvenient to use and thus reducing its practicality. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a tubular biomass boiler that facilitates the centralized collection of ash and residue after combustion, making subsequent ash and residue cleaning easier and more practical, thereby solving the problems mentioned in the background technology.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a tubular biomass boiler, comprising a furnace body, wherein a collection trough is provided inside the furnace body, and a rack is fixedly installed at the middle position of the bottom surface of the collection trough; an installation groove is provided through one side of the bottom surface of the furnace body, and a second gear is provided in the installation groove, the second gear meshing with the rack; legs are provided on both sides of the bottom surface of the furnace body, and a support plate is provided between the legs; a motor is fixedly installed on one side of the top surface of the support plate, and a first gear is fixedly connected to the output end of the motor, the first gear meshing with the second gear; a slot is provided on one side of the rack; a rod is provided on one side of the inner wall of the furnace body, and one end of the rod extends into the slot; a filter box is provided on one side of the upper part of the furnace body, and the filter box is fixedly connected to the top surface of the furnace body through a fixing column; an exhaust pipe is provided through the bottom surface of the filter box on the top surface of the furnace body; a filter screen is provided inside the filter box; and an exhaust port is provided on one side of the filter box.
[0006] Preferably, one side surface of the furnace body is provided with a through opening, and a box door is provided on the surface of the furnace body outside the through opening. The box door is hinged to the furnace body by a hinge. The length and width of the through opening are greater than the length and width of the collection trough, and the area of the box door is greater than the area of the through opening.
[0007] Preferably, the inner walls of the furnace body are provided with guide plates on both sides above the collection trough, and the guide plates are fixedly connected to the furnace body.
[0008] Preferably, the diameter of the insertion rod is smaller than the diameter of the slot, and the insertion rod is movably inserted into the slot.
[0009] Preferably, there are multiple filter screens, and the multiple filter screens are evenly distributed inside the filter box.
[0010] Preferably, the collection tank is matched with the furnace body.
[0011] Preferably, there are multiple support legs, and the multiple support legs are evenly distributed in pairs on both sides of the bottom surface of the furnace body.
[0012] Compared with the prior art, this utility model provides a tube-type biomass boiler, which has the following beneficial effects:
[0013] (1) In this utility model, external biomass fuel is added into the furnace body for combustion. The ash produced during the combustion of biomass fuel falls into the collection trough. The collection trough can be used to collect the ash during combustion, preventing the ash from accumulating at the bottom of the furnace body, thus facilitating the collection of ash. The door on one side of the furnace body is opened, and the motor on the top surface of the support plate is opened. The motor drives the first gear to rotate. While the first gear is rotating, it drives the second gear in the mounting slot to rotate. While the second gear is rotating, it drives the rack to move, which can move the collection trough on the top surface of the rack. When the collection trough is moved out of the furnace body, the ash in the collection trough can be cleaned, which is convenient for the staff to clean the ash and improves its practicality.
[0014] (2) In this utility model, the flue gas generated by the furnace body during operation enters the filter box through the flue pipe. By using the filter box, impurities in the flue gas can be filtered to prevent impurities from being discharged into the air along with the flue gas, thereby protecting the surrounding environment and improving the environmental protection of this equipment. The use of the plug rod and slot can support and limit the collection tank, thereby facilitating the stability of the collection tank during movement. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in 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.
[0016] Figure 1 This is a schematic diagram of the structure of a tubular biomass boiler proposed in this utility model;
[0017] Figure 2 This is an enlarged view (A) of a tubular biomass boiler proposed in this utility model;
[0018] Figure 3 This is a side view of a tubular biomass boiler proposed in this utility model;
[0019] Figure 4 This is a schematic diagram of the collection tank structure of a tubular biomass boiler proposed in this utility model.
[0020] Legend:
[0021] 1. Furnace body; 2. Collection trough; 3. Insert rod; 4. Slot; 5. Rack; 6. Through port; 7. Support leg; 8. Filter box; 9. Filter screen; 10. Exhaust pipe; 11. Exhaust port; 12. First gear; 13. Second gear; 14. Motor; 15. Mounting slot; 16. Box door; 17. Support plate; 18. Fixing column; 19. Guide plate. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0024] Please refer to Figure 1-4 A tubular biomass boiler includes a furnace body 1. The furnace body 1 has a collection trough 2 inside, and a rack 5 is fixedly installed at the middle of the bottom surface of the collection trough 2. A mounting groove 15 extends through one side of the bottom surface of the furnace body 1, and a second gear 13 is installed in the mounting groove 15, meshing with the rack 5. Support legs 7 are provided on both sides of the bottom surface of the furnace body 1, and a support plate 17 is provided between the support legs 7. A motor 14 is fixedly installed on one side of the top surface of the support plate 17, and a first gear 12 is fixedly connected to the output end of the motor 14, meshing with the second gear 13. A slot 4 is opened on one side of the rack 5. A rod 3 is provided on one side of the inner wall of the furnace body 1, with one end of the rod 3 extending into the slot 4. A filter box 8 is provided on the upper side of the furnace body 1, and the filter box 8 is fixedly connected to the top surface of the furnace body 1 via a fixing column 18. A flue pipe 10 extends through the bottom surface of the filter box 8 from the top surface of the furnace body 1. The filter box 8 contains... The furnace has a filter screen 9 and an exhaust port 11 on one side surface of the filter box 8. External biomass fuel is added to the furnace body 1 for combustion. The ash produced during combustion falls into the collection trough 2, which collects the ash and prevents it from accumulating at the bottom of the furnace body 1. The ash is collected by opening the door 16 on one side of the furnace body 1 and then opening the motor 14 on the top surface of the support plate 17. The motor 14 drives the first gear 12 to rotate, which in turn drives the second gear 13 in the mounting slot 15. The second gear 13, in turn, moves the rack 5, causing the collection trough 2 on the top surface of the rack 5 to move. When the collection trough 2 is removed from the furnace body 1, the ash can be cleaned, facilitating cleaning and improving its practicality.
[0025] In one embodiment, a through-hole 6 is provided on one side surface of the furnace body 1, and a door 16 is provided on the outside of the through-hole 6 on the surface of the furnace body 1. The door 16 is hinged to the furnace body 1 by a hinge. The length and width of the through-hole 6 are greater than the length and width of the collection trough 2, and the area of the door 16 is greater than the area of the through-hole 6. By opening the door 16, the ash and slag in the collection trough 2 can be removed from the furnace body 1, thereby facilitating the cleaning of the ash and slag in the collection trough 2.
[0026] In one embodiment, guide plates 19 are inclinedly provided on both sides of the inner wall of the furnace body 1 above the collection tank 2, and the guide plates 19 are fixedly connected to the furnace body 1. The use of the guide plates 19 can guide the ash and slag to enter the collection tank 2, so as to facilitate the collection of ash and slag.
[0027] In one embodiment, the diameter of the insertion rod 3 is smaller than the diameter of the slot 4, and the insertion rod 3 is movably inserted into the slot 4. The use of the insertion rod 3 and the slot 4 can support and limit the collection groove 2, thereby facilitating the stability of the collection groove 2 during movement.
[0028] In one embodiment, multiple filter screens 9 are provided, and the multiple filter screens 9 are evenly distributed inside the filter box 8. By using multiple filter screens 9, the filtration effect of flue gas can be improved, and impurities and flue gas can be prevented from being emitted into the air together, thereby protecting the surrounding environment and improving the environmental friendliness of the equipment.
[0029] In one embodiment, the collection tank 2 is matched with the furnace body 1, wherein the ash residue after combustion can be collected by using the collection tank 2.
[0030] In one embodiment, a plurality of support legs 7 are provided, and the plurality of support legs 7 are evenly distributed in pairs on both sides of the bottom surface of the furnace body 1. The support legs 7 support the furnace body 1, which helps to improve the stability of the furnace body 1.
[0031] In one embodiment, the control switch control circuit can be implemented by simple programming by those skilled in the art, and is common knowledge in the field. It is only used and not modified, so the control method and circuit connection will not be described in detail.
[0032] Working principle:
[0033] In use, external biomass fuel is added to the furnace body 1 for combustion. The ash produced during combustion falls into the collection trough 2, which collects the ash and prevents it from accumulating at the bottom of the furnace body 1. This facilitates ash collection. By opening the door 16 on one side of the furnace body 1 and then opening the motor 14 on the top surface of the support plate 17, the motor 14 drives the first gear 12 to rotate. Simultaneously, the first gear 12 drives the second gear 13 in the mounting slot 15 to rotate. The second gear 13, in turn, moves the rack 5, enabling... The collection trough 2 on the top surface of the rack 5 moves. When the collection trough 2 moves out of the furnace body 1, the ash and slag in the collection trough 2 can be cleaned, which makes it convenient for the staff to clean the ash and slag and improves its practicality. The flue gas generated by the furnace body 1 during operation enters the filter box 8 through the flue pipe 10. By using the filter box 8, impurities in the flue gas can be filtered to prevent impurities and flue gas from being emitted into the air together, thereby protecting the surrounding environment and improving the environmental protection of this equipment. The collection trough 2 can be supported and limited by the use of the insertion rod 3 and the slot 4, which makes it easy to maintain the stability of the collection trough 2 during the movement.
[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A biomass boiler of the shell-and-tube type, comprising a furnace (1), characterized in that, The inside of the furnace body (1) is provided with a collecting groove (2), and the bottom surface of the collecting groove (2) is fixedly installed with a rack (5) at the middle position, one side of the bottom surface of the furnace body (1) is provided with a mounting groove (15), and the mounting groove (15) is provided with a second gear (13), the second gear (13) is engaged with the rack (5), both sides of the bottom surface of the furnace body (1) are provided with a supporting leg (7), and the supporting leg (7) is provided with a supporting plate (17) between the supporting leg (7), one side of the top surface of the supporting plate (17) is fixedly installed with a motor (14), and the output end of the motor (14) is fixedly connected with a first gear (12), the first gear (12) is engaged with the second gear (13), one side surface of the rack (5) is provided with a slot (4), one side of the inner wall of the furnace body (1) is provided with an insertion rod (3), and one end of the insertion rod (3) extends into the slot (4), one side of the top surface of the furnace body (1) is provided with a filter box (8), and the filter box (8) is fixedly connected with the top surface of the furnace body (1) through a fixed column (18), the top surface of the furnace body (1) penetrates the bottom surface of the filter box (8) and is provided with an exhaust pipe (10), the inside of the filter box (8) is provided with a filter screen (9), one side surface of the filter box (8) is provided with an exhaust port (11).
2. A tubular biomass boiler according to claim 1, characterized in that One side surface of the furnace body (1) is provided with a through port (6), the surface of the furnace body (1) located outside the through port (6) is provided with a box door (16), and the box door (16) is hinged to the furnace body (1) through a hinge, the length and width of the through port (6) are greater than the length and width of the collecting groove (2), and the area of the box door (16) is greater than the area of the through port (6).
3. A tubular biomass boiler according to claim 1, characterized in that The inner walls of the furnace body (1) are provided with guide plates (19) inclined above the collecting groove (2), and the guide plates (19) are fixedly connected with the furnace body (1).
4. A tubular biomass boiler according to claim 1, characterized in that The diameter of the insertion rod (3) is smaller than the diameter of the slot (4), and the insertion rod (3) is movably inserted into the slot (4).
5. A tubular biomass boiler according to claim 1, characterized in that The filter screen (9) is provided with a plurality of filter screens (9), and the plurality of filter screens (9) are evenly distributed in the inside of the filter box (8).
6. A tubular biomass boiler according to claim 1, characterized in that The collecting groove (2) is matched with the furnace body (1).
7. A tubular biomass boiler according to claim 1, characterized in that The supporting leg (7) is provided with a plurality of supporting legs (7), and the plurality of supporting legs (7) are evenly distributed on both sides of the bottom surface of the furnace body (1).