Solid fuel combustion chamber for combustor

Abstract

The solid fuel combustion chamber comprises an outer cylinder, side pipes and a flow dividing chamber, one end of the outer cylinder is connected with one ends of a plurality of side pipes arranged in a circumferential array, the other ends of the side pipes are connected with the flow dividing chamber, the outer cylinder is communicated with the flow dividing chamber through the side pipes, one end of the flow dividing chamber is provided with a fan chamber, and the other end of the flow dividing chamber is provided with a fan. And an air blower is fixedly connected to the inner wall of one side of the fan chamber. The cyclone disc, the flow guide mechanism and the side pipe are utilized, the effects of improving the fuel utilization rate and prolonging the service life of the combustion cylinder are achieved, and the problem that an existing device lacks protection measures for promoting sufficient combustion of fuel and cooling the combustion cylinder is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of combustion equipment, specifically to a solid fuel combustion chamber for a burner. Background Technology

[0002] Currently, in the field of solid fuel combustion, traditional burners suffer from problems such as incomplete combustion due to insufficient oxygen in the fuel, low heat utilization efficiency due to ineffective use and recovery of the heat generated during combustion, and easy damage to the combustion chamber due to prolonged high-temperature erosion. These defects not only lead to fuel waste and increased operating costs, but also generate a large amount of unburned pollutants, making it difficult to meet increasingly stringent environmental emission standards. Therefore, there is an urgent need for a more efficient and durable solid fuel combustion chamber design.

[0003] A search revealed Chinese patent publication number CN221763586U, which discloses a high-efficiency biomass solid fuel combustion chamber structure. The technical solution includes: a combustion chamber and a waste bin fixedly installed at the bottom of the combustion chamber; furthermore, the combustion chamber contains a first combustion chamber, a second combustion chamber, and a third combustion chamber arranged from top to bottom. The internal space of the second combustion chamber is larger than that of the first combustion chamber, and the internal space of the third combustion chamber is larger than that of the second combustion chamber. The depths of the first, second, and third combustion chambers are equal. This invention, by setting multiple combustion chambers, ensures complete combustion of the fuel, guarantees fuel utilization, and avoids energy waste. Furthermore, since the flue gas and heat rise after combustion, the upper combustion chamber can utilize this heat to preheat the fuel and air, increasing the combustion temperature. Simultaneously, the smaller upper combustion chamber reduces heat loss, maintaining a high temperature inside the furnace.

[0004] However, the device lacks effective measures to promote complete fuel combustion and to effectively cool and protect the combustion chamber. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a solid fuel combustion chamber for burners, which solves the problems of existing devices lacking measures to promote complete fuel combustion and to protect the combustion chamber from cooling.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a solid fuel combustion chamber for a burner, comprising an outer cylinder, side pipes and a flow divider, wherein one end of the outer cylinder is connected to one end of a plurality of side pipes arranged in a circumferential array, the other end of the side pipes is connected to the flow divider, and the outer cylinder and the flow divider are connected through the side pipes.

[0007] Preferably, a fan chamber is provided at one end of the diversion chamber, a blower is fixedly connected to the inner wall of one side of the fan chamber, an air inlet is provided at one end of the diversion chamber, and the blower is located at the air inlet.

[0008] Preferably, the diversion chamber is provided with a fuel injection pipe, and the diversion chamber is provided with a connecting pipe, one end of which is connected to the fuel injection pipe.

[0009] Preferably, a cyclone disc is fixedly connected to one side of the outer wall of the fuel injection pipe.

[0010] Preferably, an extension tube is provided on one side of the outer cylinder.

[0011] Preferably, a first guide ring is fixedly connected to the inner wall of one side of the extension cylinder, a combustion cylinder is provided inside the outer cylinder, and a second guide ring is fixedly connected to the inner wall of one side of the combustion cylinder. The first guide ring and the second guide ring form a guide mechanism.

[0012] This invention provides a solid fuel combustion chamber for a burner. It has the following advantages:

[0013] 1. In the solid fuel combustion chamber of this burner, during use, the cyclone disc causes the gas to form a swirling airflow in the combustion cylinder, and the flow guiding mechanism optimizes the contact between the gas and fuel in the extension cylinder, allowing the fuel and oxygen to mix fully and burn completely in both the combustion cylinder and the extension cylinder, thereby improving fuel utilization and meeting exhaust emission standards.

[0014] 2. In the solid fuel combustion chamber of this burner, during use, the gas from the outer part of the distribution chamber enters the interlayer between the outer cylinder and the combustion cylinder, which cools the outer wall of the combustion cylinder and prevents it from deforming due to high temperature erosion, thus effectively extending the service life of the combustion cylinder. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a front view structural diagram of the present utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 4 This is a cross-sectional structural diagram of the flow guiding mechanism of this utility model.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Combustion tube; 2. Blower chamber; 3. Side pipe; 4. Cyclone disc; 5. Extension tube; 6. Outer tube; 7. Connecting pipe; 8. Air inlet; 9. Blower; 10. Diverter chamber; 11. Fuel injection pipe; 12. Flow guiding mechanism; 13. First flow guiding ring; 14. Second flow guiding ring. Detailed Implementation

[0021] 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.

[0022] Example 1

[0023] Please see Figure 1-4 This utility model provides a solid fuel combustion chamber for a burner, including an outer cylinder 6, side pipes 3, and a diversion chamber 10. One end of the outer cylinder 6 is connected to one end of a plurality of side pipes 3 arranged in a circumferential array, and the other end of the side pipes 3 is connected to the diversion chamber 10. The outer cylinder 6 and the diversion chamber 10 are connected through the side pipes 3. In use, the gas in the center of the diversion chamber 10 flows into the combustion cylinder 1 through the cyclone disk 4, directly providing the oxygen required for the initial combustion of the fuel. The gas diverted outside the diversion chamber 10 enters the interlayer between the outer cylinder 6 and the combustion cylinder 1 through the side pipes 3. This not only cools the outer wall of the combustion cylinder 1, but also provides fresh airflow to the fuel in the extension cylinder 5, ensuring the oxygen supply to the fuel in the extension cylinder 5.

[0024] Example 2

[0025] Please see Figure 1-4 In this embodiment, a fan chamber 2 is provided at one end of the diversion chamber 10, and a blower 9 is fixedly connected to the inner wall of one side of the fan chamber 2. An air inlet 8 is provided at one end of the diversion chamber 10, and the blower 9 is located at the air inlet 8. When in use, the blower 9 is driven, and the blower 9 can blow the outside air into the diversion chamber 10. Since the blower 9 is existing technology, it will not be described or illustrated in detail here.

[0026] The diversion chamber 10 is equipped with a fuel injection pipe 11 and a connecting pipe 7. One end of the connecting pipe 7 is connected to the fuel injection pipe 11. In use, the other end of the connecting pipe 7 is connected to an external solid fuel pneumatic conveying pipeline to continuously deliver fuel to the fuel injection pipe 11.

[0027] A cyclone disc 4 is fixedly connected to one side of the outer wall of the fuel injection pipe 11. In use, the cyclone disc 4 is divided into an inner ring and an outer ring. The inner and outer rings are respectively equipped with blades, and the inner ring blades and the outer ring blades are directed in opposite directions. This can make the gas entering the combustion tube 1 form a swirling airflow, which is conducive to the solid fully contacting oxygen and also helps the fuel to be preheated in the combustion chamber.

[0028] An extension tube 5 is provided on one side of the outer cylinder 6. When in use, the extension tube 5 can provide oxygen to the fuel again, so that the fuel can burn more completely and improve the fuel combustion efficiency.

[0029] A first guide ring 13 is fixedly connected to the inner wall of one side of the extension cylinder 5. A combustion cylinder 1 is provided inside the outer cylinder 6. A second guide ring 14 is fixedly connected to the inner wall of one side of the combustion cylinder 1. The first guide ring 13 and the second guide ring 14 form a guide mechanism 12. In use, the first guide ring 13 is designed to be inclined inward, and the second guide ring 14 is designed to be inclined outward. The second guide ring 14 can increase the cross-sectional area of ​​the fuel blown out from the combustion cylinder 1, thereby increasing the contact area between the fuel and oxygen and achieving the effect of complete combustion. The first guide ring 13 can perform a certain centering and guiding of the gas blown out from the interlayer between the sleeve and the combustion cylinder 1, so that it shortens the movement stroke required to contact the fuel blown out from the combustion cylinder 1.

[0030] Instructions for use: When using this device, connect the connecting pipe 7 to the external solid fuel pneumatic conveying pipeline. The external solid fuel pneumatic conveying pipeline provides power for fuel delivery, allowing fuel to be blown out from one side of the fuel injection pipe 11 along the connecting pipe 7, driving the blower 9 in the blower chamber 2. The blower 9 draws in air from the air inlet 8. On one hand, the central portion of the gas blown out from the blower 9 flows along the distribution chamber 10 and enters the combustion chamber 1 through the cyclone disc 4. The cyclone disc 4 can create a gas vortex inside the combustion chamber 1, facilitating the full mixing of fuel and oxygen, providing oxygen for fuel combustion, and ensuring complete combustion. On the other hand, the externally distributed gas blown out from the blower 9 flows along the side pipe 3 from the distribution chamber 1... The flow chamber 10 enters the outer cylinder 6, providing a rapid airflow to the interlayer between the outer cylinder 6 and the combustion chamber. This airflow cools the outer wall of the combustion cylinder 1, preventing erosion and deformation damage caused by continuous high-temperature burning, thus extending the service life of the combustion cylinder 1. The fuel that is initially burned in the combustion chamber is blown into the extension cylinder 5. The gas in the interlayer between the outer cylinder 6 and the combustion chamber is guided by the flow guiding mechanism 12 and flows obliquely to the extension cylinder 5. This airflow provides more oxygen for the combustion of the fuel in the extension cylinder 5, making the fuel combustion more complete and improving fuel utilization, thus meeting the exhaust emission standards.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A solid fuel combustion chamber for a burner, comprising an outer cylinder (6), a side pipe (3), and a flow divider (10), characterized in that: One end of the outer cylinder (6) is connected to one end of a plurality of side tubes (3) arranged in a circular array, and the other end of the side tubes (3) is connected to the diversion chamber (10). The outer cylinder (6) and the diversion chamber (10) are connected through the side tubes (3).

2. The solid fuel combustion chamber for a burner according to claim 1, characterized in that: The diversion chamber (10) has a fan chamber (2) at one end, and a blower (9) is fixedly connected to the inner wall of one side of the fan chamber (2). The diversion chamber (10) has an air inlet (8) at one end, and the blower (9) is located at the air inlet (8).

3. The solid fuel combustion chamber for a burner according to claim 1, characterized in that: The diversion chamber (10) is provided with a fuel injection pipe (11) and a connecting pipe (7), one end of which is connected to the fuel injection pipe (11).

4. A solid fuel combustion chamber for a burner according to claim 3, characterized in that: A cyclone disc (4) is fixedly connected to one side of the outer wall of the fuel injection pipe (11).

5. A solid fuel combustion chamber for a burner according to claim 1, characterized in that: An extension tube (5) is provided on one side of the outer cylinder (6).

6. A solid fuel combustion chamber for a burner according to claim 5, characterized in that: The extension tube (5) has a first guide ring (13) fixedly connected to one side of its inner wall. The outer tube (6) has a combustion tube (1) inside. The combustion tube (1) has a second guide ring (14) fixedly connected to one side of its inner wall. The first guide ring (13) and the second guide ring (14) form a guide mechanism (12).

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