Boiler for combusting biomass energy particles

Abstract

The utility model relates to the technical field of biomass particle combustion equipment, and discloses a boiler for combusting biomass energy particles, which comprises a boiler body, a combustion cavity and an air blower, an air transmission cavity is arranged in the boiler body, an ash blocking door is arranged at the communication position, the air blower is communicated with an air supply pipe, and the combustion cavity is communicated with the air supply pipe. A non-return mechanism is mounted in the air supply pipe; according to the utility model, by adopting dustproof measures, the air blower can be always kept in an optimal working state, so that the stable operation of the heating furnace is ensured; the combustion efficiency is one of important indexes for measuring the performance of the heating furnace, dust is prevented from entering, it can be guaranteed that air and biomass particle fuel are fully mixed, the combustion efficiency is improved, and therefore the fuel cost is saved. Dust is prevented from entering, abrasion and corrosion of mechanical parts can be reduced, the dust blocks an air duct to possibly cause overheating of the air blower and even fire disasters, and the dust is prevented from entering the air blower to ensure safe operation of the heating furnace.

Description

Technical Field

[0001] The utility model relates to the technical field of biomass particle combustion equipment, in particular to a boiler used for burning biomass energy particles. Background Art

[0002] The biomass pellet heating stove is a type of boiler that burns biomass pellets. Its characteristic is that it uses biomass pellets as fuel. Biomass pellets usually come from agricultural and forestry waste, such as straw, sawdust, etc. These are very common in rural areas and are regarded as a clean energy source. Compared with traditional fuels such as coal, biomass pellet fuel is more environmentally friendly. The working principle of the biomass pellet heating stove is to generate heat energy by burning biomass pellets, which is then used for heating to provide warmth for various places. It also helps to reduce the emission of atmospheric pollutants.

[0003] The patent currently published with the publication number CN213599419U discloses a biomass pellet heating stove, including a heating stove body, a flame chamber is provided in the middle of the front of the heating stove body, a slag chamber is provided at the bottom of the front of the heating stove body, a slag door is provided on the front of the slag chamber, a door panel is installed on the front of the heating stove body through hinges, a cast iron baffle is fixed to the rear surface of the flame chamber, a cast iron combustion tube is fixed to the bottom of the flame chamber, the bottom of the cast iron combustion tube extends into the slag chamber, and a cast iron cleaning ball is movably provided at the bottom of the cast iron combustion tube; although the above device solves the problem of preventing slag agglomeration and clogging to affect the combustion efficiency of the internal fuel.

[0004] However, the above technical solution still has the following problems:

[0005] Biomass pellet heating stoves use biomass pellets as fuel and generate heat through combustion for heating. The dust generated by biomass pellets can easily enter the inside of the blower. The dust accumulates inside the blower and will gradually block the air duct, reducing the air circulation efficiency, which will cause incomplete combustion of the fuel or even completely block the air from entering the furnace, making it impossible for the heater to ignite or causing unstable combustion. The dust contains larger impurities, which will cause wear on the internal mechanical parts when the blower is running, shortening the service life of the blower. Due to air duct blockage and incomplete combustion, the heating stove needs to consume more biomass pellets to maintain the required heat output, thereby increasing energy consumption and operating costs. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a boiler for burning biomass energy pellets to solve at least one of the problems raised by the background technology, such as: preventing dust from entering the blower to avoid blockage or wear inside the blower, ensuring smooth air circulation, and enabling the heating furnace to output heat continuously and stably.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a boiler for burning biomass energy particles, comprising a furnace body, a combustion chamber opened in the furnace body, a fan chamber opened in the furnace body and a blower installed in the fan chamber, an air transfer chamber connected to the combustion chamber is opened in the furnace body, one side of the air transfer chamber is connected to the outside, and a ash blocking door is installed at the connection point, the output end of the blower is connected to an air supply pipe, the other end of the air supply pipe is connected to the air transfer chamber, and a non-return mechanism is installed in the air supply pipe.

[0008] Furthermore, a filter screen is provided at the connection point between the air transmission chamber and the combustion chamber.

[0009] Furthermore, a fixing rod is rotatably connected to the top of the dust-blocking door, and two ends of the fixing rod are fixedly connected to the inner wall of the opening of the air transmission cavity.

[0010] Furthermore, the anti-return mechanism includes a dust-proof plate, a rotating shaft and a clamping block. The rotating shaft is fixedly connected to the inner wall of the air supply pipe, the dust-proof plate is fixedly connected to the outer side of the rotating shaft, and the clamping block is fixedly connected to the side of the air supply pipe close to the blower.

[0011] Furthermore, both ends of the dust-proof plate are fitted and connected to the inner wall of the air supply pipe, and one end of the dust-proof plate is fitted and connected to one side of the clamping block.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model can ensure that the blower always maintains the best working condition by taking dust prevention measures, thereby ensuring the stable operation of the heating stove; combustion efficiency is one of the important indicators to measure the performance of the heating stove, and preventing dust from entering can ensure that the air and biomass particle fuel are fully mixed, thereby improving combustion efficiency and saving fuel costs; and preventing dust from entering can reduce the wear and corrosion of mechanical parts. Dust clogging the air duct may cause the blower to overheat or even cause a fire, and preventing dust from entering the blower ensures the safe operation of the heating stove. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the furnace body of the utility model;

[0016] Figure 3 for Figure 2 A magnified schematic diagram of point A;

[0017] Figure 4 This is a schematic diagram of the front cross-section of the furnace body of the utility model;

[0018] Figure 5 This is a schematic diagram of the three-dimensional structure of the blower and air supply pipe of the utility model;

[0019] Figure 6 for Figure 5 An enlarged schematic diagram of point B.

[0020] In the figure: 1, furnace body; 2, combustion chamber; 3, air transfer chamber; 4, ash blocking door; 401, fixing rod; 5, filter screen; 6, fan chamber; 7, blower; 8, air supply pipe; 9, anti-return mechanism; 901, ash prevention plate; 902, rotating shaft; 903, block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] like Figures 1 to 6 As shown, a boiler for burning biomass energy particles includes a furnace body 1, a combustion chamber 2 opened in the furnace body 1, a fan chamber 6 opened in the furnace body 1 and a blower 7 installed in the fan chamber 6. An air transmission chamber 3 connected to the combustion chamber 2 is opened in the furnace body 1, one side of the air transmission chamber 3 is connected to the outside, and an ash blocking door 4 is installed at the connection point. The output end of the blower 7 is connected to an air supply pipe 8, and the other end of the air supply pipe 8 is connected to the air transmission chamber 3, and a non-return mechanism 9 is installed in the air supply pipe 8.

[0023] like Figure 1 As shown, a boiler for burning biomass energy pellets in the utility model is similar to the structure of an existing biomass pellet heating stove, such as the biomass pellet heating stove disclosed in the patent publication number CN213599419U. The main improvement of the utility model is to extend the service life of the heating stove and its components and reduce maintenance costs. Figures 1 to 6 As shown, when a boiler for burning biomass energy particles in the utility model is in use, the furnace body 1 serves as the main body of the boiler. The furnace body 1 accommodates a combustion chamber 2, which is the main place for the combustion of biomass particles. The combustion chamber 2 is the place where the biomass particles burn, and the biomass particles generate heat energy by combustion here. The fan chamber 6 and the blower 7 are responsible for providing air to the combustion chamber 2 to ensure the full combustion of the biomass particles. The air transmission chamber 3 serves as a channel connecting the blower 7 and the combustion chamber 2 to ensure that the air can smoothly enter the combustion chamber 2. The air supply pipe 8 further transports the air generated by the blower 7 to the air transmission chamber 3. The dust blocking door 4 is installed at the connection between the air transmission chamber 3 and the external environment. Dust and impurities accumulate at the bottom of the air transmission chamber 3. The dust can be swept out by opening the dust blocking door 4. The anti-return mechanism 9 is installed in the air supply pipe 8 to prevent dust and impurities from entering the blower 7 when the blower 7 stops working or the air refluxes. The anti-return mechanism 9 has a one-way conduction function, that is, it only allows air to flow from the blower 7 to the air transmission chamber 3, and prevents air from flowing in the opposite direction.

[0024] like Figures 1 to 4 As shown, a filter screen 5 is provided at the connection point between the air transmission chamber 3 and the combustion chamber 2.

[0025] Specifically, through this arrangement, the combustion chamber 2 is the main place for the combustion of biomass particles, which will produce a certain amount of dust and impurities. These dust and impurities can easily enter the air transmission chamber 3 through the air flow, and then may enter the blower 7. The setting of the filter 5 can effectively intercept these dust and impurities and prevent dust from entering the air transmission chamber 3, thereby ensuring the cleanliness of the air transmission chamber 3 and the inside of the blower 7, and avoiding dust damage to the mechanical parts and electronic components of the blower 7.

[0026] like Figures 2 to 3 As shown, the top of the dust blocking door 4 is rotatably connected to a fixing rod 401 , and both ends of the fixing rod 401 are fixedly connected to the inner wall of the opening of the air transmission cavity 3 .

[0027] Specifically, through this arrangement, the dust blocking door 4 can be flexibly opened and closed. Through the rotational connection between the fixing rod 401 and the top of the dust blocking door 4, the user can conveniently operate the dust blocking door 4 so that it can be easily opened when the dust at the bottom of the air transmission chamber 3 needs to be cleaned, and can be conveniently closed after cleaning to prevent dust and impurities from entering from the outside.

[0028] like Figure 5 to Figure 6 As shown, the anti-return mechanism 9 includes a dust-proof plate 901, a rotating shaft 902 and a clamping block 903. The rotating shaft 902 is fixedly connected to the inner wall of the air supply pipe 8, the dust-proof plate 901 is fixedly connected to the outer side of the rotating shaft 902, and the clamping block 903 is fixedly connected to the side of the air supply pipe 8 close to the blower 7.

[0029] Specifically, through this arrangement, the dustproof plate 901 is connected to the air supply pipe 8 through a fixed connection on the outside of the rotating shaft 902. When the air in the air supply pipe 8 flows to the blower 7, the dustproof plate 901 can rotate with the air flow without hindering the circulation of air. When the air flows back or the blower 7 stops working, the dustproof plate 901 can quickly close the passage of the air supply pipe 8 under the action of the block 903. The block 903 is fixedly connected to the side of the air supply pipe 8 close to the blower 7, and can effectively block the rotation of the dustproof plate 901 when needed, thereby closing the air supply pipe 8.

[0030] like Figure 5 to Figure 6 As shown, both ends of the dust-proof plate 901 are closely connected to the inner wall of the air supply pipe 8 , and one end of the dust-proof plate 901 is closely connected to one side of the clamping block 903 .

[0031] Specifically, by setting up the fitting connection between the two ends of the dust-proof plate 901 and the inner wall of the air supply pipe 8, dust and impurities can be effectively prevented from entering through the gaps in the air supply pipe 8. This tight connection ensures the sealing of the air supply pipe 8 during operation, prevents dust leakage and accumulation, and thus protects the blower 7 and other components from dust. The block 903 will block the rotation of the dust-proof plate 901, making it fit tightly on the channel of the air supply pipe 8, thereby preventing dust and impurities from entering the blower 7.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A boiler for burning biomass pellets, comprising a furnace body (1), a combustion chamber (2) provided in the furnace body (1), a fan chamber (6) provided in the furnace body (1), and a blower (7) installed in the fan chamber (6), characterized in that: The furnace body (1) is provided with an air transfer chamber (3) connected to the combustion chamber (2); one side of the air transfer chamber (3) is connected to the outside, and a dust blocking door (4) is installed at the connection point; the output end of the blower (7) is connected to an air supply pipe (8); the other end of the air supply pipe (8) is connected to the air transfer chamber (3), and a backflow prevention mechanism (9) is installed in the air supply pipe (8).

2. A boiler for burning biomass particles according to claim 1, characterized in that: A filter screen (5) is provided at the connection point between the air transmission chamber (3) and the combustion chamber (2).

3. A boiler for burning biomass particles according to claim 1 or 2, characterized in that: The top of the dust blocking door (4) is rotatably connected to a fixing rod (401), and both ends of the fixing rod (401) are fixedly connected to the inner wall of the open portion of the air transmission cavity (3).

4. A boiler for burning biomass pellets according to claim 1 or 2, characterized in that: The anti-return mechanism (9) comprises a dust-proof plate (901), a rotating shaft (902) and a clamping block (903); the rotating shaft (902) is fixedly connected to the inner wall of the air supply pipe (8); the dust-proof plate (901) is fixedly connected to the outer side of the rotating shaft (902); and the clamping block (903) is fixedly connected to the side of the air supply pipe (8) close to the blower (7).

5. A boiler for burning biomass pellets according to claim 3, characterized in that: The anti-return mechanism (9) comprises a dust-proof plate (901), a rotating shaft (902) and a clamping block (903); the rotating shaft (902) is fixedly connected to the inner wall of the air supply pipe (8); the dust-proof plate (901) is fixedly connected to the outer side of the rotating shaft (902); and the clamping block (903) is fixedly connected to the side of the air supply pipe (8) close to the blower (7).

6. A boiler for burning biomass pellets according to claim 4, characterized in that: Both ends of the dust-proof plate (901) are fitted and connected to the inner wall of the air supply pipe (8), and one end of the dust-proof plate (901) is fitted and connected to one side of the clamping block (903).

7. A boiler for burning biomass pellets according to claim 5, characterized in that: Both ends of the dust-proof plate (901) are fitted and connected to the inner wall of the air supply pipe (8), and one end of the dust-proof plate (901) is fitted and connected to one side of the clamping block (903).

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