High-temperature fluidized bed gas burner

Abstract

This utility model relates to a high-temperature fluidized bed gas burner, including a heating chamber. Gas guide pipes are uniformly fixedly inserted into the upper surface of the heating chamber to guide hot gas from the heating chamber into the furnace. A first through hole is opened in the center of the right side of the heating chamber. An outer cover is fixedly connected to the right side of the heating chamber, corresponding to the center of the first through hole. An inner cover is fixedly connected inside the outer cover. A gas inlet pipe is fixedly connected to the end of the inner cover away from the heating chamber. A burner cap and igniter are installed at the end of the gas inlet pipe near the inner cover. An air inlet pipe is fixedly connected to the surface of the gas inlet pipe. A water circulation pipeline is provided inside the heating chamber. A sealing cover is detachably installed on the front of the heating chamber, and a ventilation structure is provided in the center of the front of the sealing cover. This utility model enables the high-temperature gas from the combustion chamber to enter the furnace evenly, fully contacting the fuel and improving heat utilization efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, in particular to a high-temperature fluidized bed gas burner. Background Art

[0002] A high-temperature fluidized bed is a thermal reaction device based on the principle of fluidization. High-temperature gas flow is generated through the mixed combustion of gas and air, and the hot gas is directionally transported to the furnace by means of a blower. By placing solid fuel particles in a high-speed gas flow to make them present a suspended motion state similar to a fluid, the material can achieve efficient combustion or gasification at a high temperature of 850 - 1000 °C.

[0003] In the prior art, traditional fluidized bed burners generally face the problem of low thermal efficiency utilization. Specifically, due to the lack of an optimized air flow guiding mechanism, the heat output rate per unit gas consumption is low. In addition, the excess heat in the combustion chamber is not reused, resulting in wasted heat energy. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a high-temperature fluidized bed gas burner to solve the problem of low heat utilization efficiency of existing fluidized bed burners.

[0005] The high-temperature fluidized bed gas burner of the utility model includes a heating chamber. The upper surface of the heating chamber is uniformly and fixedly inserted with air guide pipes for guiding the hot gas in the heating chamber into the furnace. A first through hole is opened in the center of the right side of the heating chamber. An outer cover is fixedly connected at a position corresponding to the center of the first through hole on the right side of the heating chamber. An inner cover is fixedly connected inside the outer cover. One end of the inner cover away from the heating chamber is fixedly connected with a gas inlet pipe. A fire cap and an igniter are installed at one end of the gas inlet pipe close to the inner cover. An air inlet pipe is fixedly communicated with the surface of the gas inlet pipe. A water circulation pipeline is arranged inside the heating chamber. A sealing cover is detachably installed on the front surface of the heating chamber. A ventilation structure is arranged in the center of the front surface of the sealing cover.

[0006] As a further improvement of the utility model, the water circulation pipeline includes pipes arranged at equal distances. A pipe clamp is fixedly connected to the left side of the inner wall of the heating chamber. The pipes are clamped inside the pipe clamp. A connecting pipe is communicated between two adjacent pipes.

[0007] As a further improvement of the utility model, the front surface of the pipe is in a "C" shape. The upper end of the pipe slopes upward, and the lower end of the pipe slopes downward.

[0008] As a further improvement of this utility model, a water inlet pipe is fixedly connected to the upper right side of the front pipe near the heating chamber, and a first pipe connector is fixedly connected to the front of the sealing cover at the position corresponding to the water inlet pipe. The other end of the water inlet pipe passes through the first pipe connector and is fixedly connected to the first pipe connector.

[0009] As a further improvement of this utility model, the water circulation pipeline also includes a water outlet pipe. The lower right side of the pipeline is connected to the side of the water outlet pipe. A second pipe fitting is fixedly connected to the back of the heating chamber at the position corresponding to the water outlet pipe. The other end of the water outlet pipe passes through the second pipe fitting and is fixedly connected to the second pipe fitting.

[0010] As a further improvement of this utility model, the bottom end of the air guide pipe passes through the upper surface of the heating chamber and extends into the interior of the heating chamber, and the top end of the air guide pipe is fixedly connected to a hollow ball head, and a ventilation hole is provided in the center of the top of the hollow ball head.

[0011] As a further improvement of this utility model, the ventilation structure includes an air collecting hood, a second through hole is provided in the center of the front of the sealing cover, the air collecting hood is fixedly connected to the front of the sealing cover and at the position corresponding to the center of the second through hole, and an air inlet pipe is fixedly connected to the outside of the air collecting hood.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model forms a directional airflow field by uniformly arranged air guide pipes and hollow ball head structure on the upper surface of the heating chamber, so that the high-temperature gas in the combustion chamber can enter the furnace evenly and fully contact the fuel, thereby improving the heat utilization efficiency.

[0014] 2. This utility model, through the setting of water circulation pipes and the inclined layout of "U"-shaped pipes, can increase the heat exchange area of ​​the water circulation pipes, and use the originally lost waste heat to heat the cold water in the water circulation pipes, converting it into usable hot water, realizing the secondary utilization of waste heat and avoiding the waste of waste heat. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the overall front sectional structure of this utility model;

[0018] Figure 3This is a schematic diagram of the water circulation pipeline structure of this utility model;

[0019] Figure 4 This is a schematic diagram showing the connection between the present invention and the furnace chamber.

[0020] In the diagram: 1. Heating chamber; 2. Gas duct; 3. Ball head; 4. Ventilation hole; 5. Pipe clamp; 6. Pipe; 7. Connecting pipe; 8. Water inlet pipe; 9. Water outlet pipe; 10. First through hole; 11. Outer cover; 12. Inner cover; 13. Gas inlet pipe; 14. Flame cover; 15. Air inlet pipe; 16. Sealing cover; 17. Air collector hood; 18. Air inlet pipe; 19. First pipe fitting; 20. Furnace. Detailed Implementation

[0021] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.

[0022] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0023] In the description of this technology, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0024] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0025] Please see Figure 1-4, the high-temperature fluidized bed gas burner of the present utility model includes a heating chamber 1. The upper surface of the heating chamber 1 is uniformly and fixedly inserted with air guide pipes 2 for guiding the hot gas in the heating chamber 1 into the furnace chamber 20. A first through hole 10 is formed in the center on the right side of the heating chamber 1. At the position corresponding to the center of the first through hole 10 on the right side of the heating chamber 1, an outer cover 11 is fixedly connected. An inner cover 12 is fixedly connected inside the outer cover 11. One end of the inner cover 12 far from the heating chamber 1 is fixedly connected with a gas inlet pipe 13. A burner cap 14 and an igniter are installed at one end of the gas inlet pipe 13 close to the inner cover 12. An air inlet pipe 15 is fixedly communicated with the surface of the gas inlet pipe 13. A water circulation pipeline is arranged inside the heating chamber 1. A sealing cover 16 is detachably installed on the front surface of the heating chamber 1. A ventilation structure is arranged in the center of the front surface of the sealing cover 16.

[0026] In this embodiment, the water circulation pipeline includes pipes 6 arranged at equal distances. A pipe clamp 5 is fixedly connected to the left side of the inner wall of the heating chamber 1. The pipe 6 is clamped inside the pipe clamp 5. A connecting pipe 7 is communicated between two adjacent pipes 6.

[0027] By arranging the water circulation pipeline, the heat in the heating chamber 1 can be fully utilized to heat the cold water in the water circulation pipeline, convert the cold water into available hot water, and perform secondary utilization of the waste heat in the heating chamber 1, thereby improving the heat utilization efficiency.

[0028] Please refer to Figure 3 , in this embodiment, the front surface of the pipe 6 is in a "C" shape. The upper end of the pipe 6 is inclined upward, and the lower end of the pipe 6 is inclined downward. A water inlet pipe 8 is fixedly connected to the upper right of the pipe 6 close to the front surface of the heating chamber 1. A first pipe fitting 19 is fixedly connected to the position on the front surface of the sealing cover 16 corresponding to the water inlet pipe 8. The other end of the water inlet pipe 8 passes through the first pipe fitting 19 and is fixedly connected to the first pipe fitting 19. The water circulation pipeline further includes a water outlet pipe 9. The lower right side of the pipe 6 is communicated with the side surface of the water outlet pipe 9. A second pipe fitting is fixedly connected to the position on the back surface of the heating chamber 1 corresponding to the water outlet pipe 9. The other end of the water outlet pipe 9 passes through the second pipe fitting and is fixedly connected to the second pipe fitting.

[0029] Through the above technical solution, each pipe 6 presents an installation posture with both ends inclined in the opposite direction. This design promotes the natural circulation flow of water in the pipeline under the action of gravity. After the work is completed, the water in the pipe 6 can automatically flow into the water outlet pipe 9 and be discharged under the action of gravity, avoiding water accumulation inside the pipe 6.

[0030] In this embodiment, the bottom end of the air guide pipe 2 passes through the upper surface of the heating chamber 1 and extends into the heating chamber 1. The top end of the air guide pipe 2 is fixedly communicated with a hollow ball head 3. A ventilation hole 4 is formed in the center of the top of the hollow ball head 3.

[0031] The hollow ball head 3 and the through hole on its top allow the high-temperature gas in the combustion chamber to enter the furnace 20 evenly, making full contact with the fuel and improving the efficiency of heat utilization.

[0032] In this embodiment, the ventilation structure includes an air collecting hood 17. A second through hole is provided in the center of the front of the sealing cover 16. The air collecting hood 17 is fixedly connected to the front of the sealing cover 16 at the position corresponding to the center of the second through hole. An air inlet pipe 18 is fixedly connected to the outside of the air collecting hood 17. The air inlet pipe 18 is connected to a fan and continuously delivers high-pressure air to the heating chamber 1, thereby achieving efficient air supply to the burner.

[0033] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A high temperature fluidized bed coal gas burner characterized by, It includes a heating chamber (1), and air ducts (2) are uniformly and fixedly inserted into the upper surface of the heating chamber (1) for introducing the hot air in the heating chamber (1) into the furnace chamber (20). A first through hole (10) is formed in the center on the right side of the heating chamber (1). An outer cover (11) is fixedly connected to the position corresponding to the center of the first through hole (10) on the right side of the heating chamber (1). An inner cover (12) is fixedly connected inside the outer cover (11). A gas inlet pipe (13) is fixedly connected to one end of the inner cover (12) away from the heating chamber (1). A burner cap (14) and an igniter are installed at one end of the gas inlet pipe (13) close to the inner cover (12). An air inlet pipe (15) is fixedly connected to the surface of the gas inlet pipe (13). A water circulation pipeline is arranged inside the heating chamber (1). A sealing cover (16) is detachably installed on the front surface of the heating chamber (1), and a ventilation structure is arranged in the center of the front surface of the sealing cover (16).

2. The high-temperature fluidized bed gas burner according to claim 1, characterized in that, The water circulation pipeline includes pipes (6) arranged at equal intervals. A pipe clamp (5) is fixedly connected to the left side of the inner wall of the heating chamber (1). The pipes (6) are clamped inside the pipe clamp (5), and a connecting pipe (7) is connected between adjacent two pipes (6).

3. The high-temperature fluidized bed gas burner according to claim 2, characterized in that, The front surface of the pipe (6) is in a "C" shape, the upper end of the pipe (6) slopes upward, and the lower end of the pipe (6) slopes downward.

4. The high-temperature fluidized bed gas burner according to claim 3, characterized in that, A water inlet pipe (8) is fixedly connected to the upper right of the pipe (6) close to the front surface of the heating chamber (1). A first pipe connector (19) is fixedly connected to the position on the front surface of the sealing cover (16) corresponding to the water inlet pipe (8). The other end of the water inlet pipe (8) passes through the first pipe connector (19) and is fixedly connected to the first pipe connector (19).

5. The high-temperature fluidized bed gas burner according to claim 3, characterized in that, The water circulation pipeline further includes a water outlet pipe (9). The lower right side of the pipe (6) is communicated with the side surface of the water outlet pipe (9). A second pipe connector is fixedly connected to the position on the back surface of the heating chamber (1) corresponding to the water outlet pipe (9). The other end of the water outlet pipe (9) passes through the second pipe connector and is fixedly connected to the second pipe connector.

6. The high-temperature fluidized bed gas burner according to claim 1, characterized in that, The bottom end of the air duct (2) passes through the upper surface of the heating chamber (1) and extends into the heating chamber (1). The top end of the air duct (2) is fixedly communicated with a hollow ball head (3), and a ventilation hole (4) is formed in the center of the top of the hollow ball head (3).

7. The high-temperature fluidized bed gas burner according to claim 1, characterized in that, The ventilation structure includes a wind collecting cover (17). A second through hole is formed in the center of the front surface of the sealing cover (16). The wind collecting cover (17) is fixedly connected to the front surface of the sealing cover (16) at the position corresponding to the center of the second through hole. An air inlet pipe (18) is fixedly communicated with the outside of the wind collecting cover (17).

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