A boiler burner

Abstract

The utility model discloses a boiler combustor relates to the technical field of combustor. It includes combustor body, and the combustion cylinder of combustor body is set up transversely, and its lateral wall is connected with the output end of combustor body through the installation pipe, the combustion cylinder is externally sleeved and is fixed with the positioning shell, the positioning shell is used for being connected with the boiler through the flange, is equipped with first fire outlet subassembly and second fire outlet subassembly on the combustion cylinder, first fire outlet subassembly includes the first refractory ring of sliding sleeve joint in the inside of the combustion cylinder export end, and the first control member for pushing and pulling it along the combustion cylinder is connected on the first refractory ring, second fire outlet subassembly includes the second refractory ring of sliding sleeve joint on the outside of the combustion cylinder export end, and the second control member for pushing and pulling it along the combustion cylinder is connected on the second refractory ring. The utility model has the beneficial effects that: it can improve the duration of combustion work, shorten the shutdown cooling time, thereby improve the work efficiency of boiler.

Description

Technical Field

[0001] This utility model relates to the field of burner technology, and in particular to a boiler burner. Background Technology

[0002] A boiler burner is the burner used on a boiler. It is the most important auxiliary equipment in an oil or gas boiler, and its main function is to deliver fuel and combustion air into the furnace through nozzles in a specific ratio, speed, and mixing manner.

[0003] In practical operation, the burner's continuous flame output exposes the combustion chamber's outlet to intense heat. Although high-temperature resistant materials are used in this area, prolonged direct flame exposure can still lead to deformation, slagging, and cracking of the burner, especially at the outlet, affecting its lifespan and potentially causing safety hazards. Therefore, boiler burners are typically operated intermittently, running for a period followed by a cooling period. This method extends the burner's lifespan, but the downtime is usually long, impacting boiler efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a boiler burner that can increase the duration of combustion and shorten the shutdown cooling time, thereby improving the working efficiency of the boiler.

[0005] The technical solution adopted by this utility model is as follows: a boiler burner is provided, including a burner body, the combustion cylinder of the burner body is arranged horizontally, and its side wall is connected to the output end of the burner body through an installation pipe; a positioning shell is fixedly fitted on the outside of the combustion cylinder; the positioning shell is used to connect to the boiler through a flange; a first fire outlet assembly and a second fire outlet assembly are provided on the combustion cylinder. The first ignition outlet assembly includes a first refractory ring that is slidably sleeved on the inner side of the combustion tube outlet end; a first control element for pushing and pulling the first refractory ring along the combustion tube is connected to the first refractory ring. The second ignition outlet assembly includes a second refractory ring that is slidably sleeved on the outside of the combustion tube outlet end; a second control element for pushing and pulling the second refractory ring along the combustion tube is connected to the second refractory ring.

[0006] To further optimize this technical solution, a first control component for a boiler burner includes a first control rod arranged along the length of the combustion cylinder; one end of the first control rod is connected to a first refractory ring, and the other end slides and seals through the tail end of the combustion cylinder.

[0007] To further optimize this technical solution, a second control component for a boiler burner includes a second control rod arranged along the length of the combustion cylinder; one end of the second control rod is connected to a second refractory ring, and the other end slides and seals through the end of the positioning shell away from the flange.

[0008] To further optimize this technical solution, a first adjusting sleeve is externally threaded to the tail end of the combustion cylinder of a boiler burner; a first connecting ring is coaxially rotatably sleeved inside the first adjusting sleeve; and the first control rod extends out of the combustion cylinder and is connected to the first connecting ring.

[0009] To further optimize this technical solution, a second adjusting sleeve is externally threaded onto the combustion cylinder of a boiler burner; a second connecting ring is coaxially rotatably sleeved on the second adjusting sleeve; one end of the second control rod protruding from the positioning shell is connected to the second connecting ring.

[0010] To further optimize this technical solution, the positioning shell of a boiler burner is connected to the outer wall of the combustion cylinder via a reinforcing rod.

[0011] The beneficial effects of this utility model are as follows: The combustion chamber is connected to the output end of the burner body via an installation pipe, enabling a continuous output of fuel and air for combustion. Ignition is achieved through the burner body, resulting in a continuous flame output. A first control element is connected to the first refractory ring for pushing and pulling it along the combustion chamber, and a second control element is connected to the second refractory ring for the same purpose. These control elements allow either the first or second refractory ring to extend a certain length from the outlet end of the combustion chamber, thus allowing either ring to withstand the intense heat of the flame. The two control elements can be switched, preventing a single component from being subjected to prolonged high-temperature flame exposure and improving the boiler burner's continuous operating time. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the combustion chamber.

[0013] In the diagram, 1. Burner body; 2. Combustion cylinder; 3. Mounting pipe; 4. Positioning shell; 5. Flange; 6. First refractory ring; 7. First control component; 8. Second refractory ring; 9. Second control component; 10. First control rod; 11. Second control rod; 12. First adjusting sleeve; 13. First connecting ring; 14. Second adjusting sleeve; 15. Second connecting ring; 16. Reinforcing rod. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] like Figure 1-2As shown, a boiler burner includes a burner body 1, a combustion cylinder 2 of the burner body 1 arranged horizontally, and its side wall is connected to the output end of the burner body 1 through an installation pipe 3; a positioning shell 4 is fixedly fitted to the outside of the combustion cylinder 2; the positioning shell 4 is used to connect to the boiler through a flange 5; the combustion cylinder 2 is provided with a first fire outlet assembly and a second fire outlet assembly. The first ignition outlet assembly includes a first refractory ring 6 that is slidably sleeved on the inner side of the outlet end of the combustion cylinder 2; a first control element 7 for pushing and pulling the first refractory ring 6 along the combustion cylinder 2 is connected to the first refractory ring 6. The second ignition outlet assembly includes a second refractory ring 8 that is slidably sleeved on the outside of the outlet end of the combustion cylinder 2; a second control element 9 for pushing and pulling the second refractory ring 8 along the combustion cylinder 2 is connected to the second refractory ring 8.

[0016] Traditional boiler burners only have a single component at the outlet end of the combustion cylinder 2 bearing the heat of the flame. Continuous exposure to the flame for too long poses a safety hazard, so intermittent shutdowns are required to cool the area exposed to the flame. The cooling time is relatively long, which affects work efficiency.

[0017] In this technical solution, by switching between the first refractory ring 6 and the second refractory ring 8 to bear the flame's heat, the problem of requiring a long shutdown for cooling due to a single component bearing high-temperature flames for an extended period is effectively avoided. After one of the first refractory ring 6 or the second refractory ring 8 has been subjected to flame heat for a period of time, only a short shutdown is needed to switch the other component to bear the flame, allowing the former component to cool down. Through this repeated action, the duration of combustion can be effectively extended, the shutdown cooling time shortened, and thus the boiler's operating efficiency improved.

[0018] When switching the component that bears the flame, the first fire-resistant ring 6 is pushed outward by the first control component 7, slightly beyond the outlet end of the combustion cylinder 2, and the second control component 9 pulls the first fire-resistant ring 6 back, not exceeding the outlet end of the combustion cylinder 2. At this time, the first fire-resistant ring 6 bears the flame, and the second fire-resistant ring 8 does not directly bear the flame. Conversely, if the action is reversed, the second fire-resistant ring 8 will be switched to bear the flame.

[0019] This solution addresses the improvement of the combustion tube 2 component without altering the existing structure of the burner body 1. The corresponding ignition components, electrical control components, valve components, etc., can continue to use the existing components.

[0020] like Figure 2 As shown, the first fire-resistant ring 6 and the second fire-resistant ring 8 can be made of heat-resistant steel, composite ceramics and other high-temperature resistant materials. The specific material selection is not limited and is determined by actual needs.

[0021] like Figure 2As shown, the first control component 7 includes a first control rod 10 arranged along the length of the combustion cylinder 2; one end of the first control rod 10 is connected to the first refractory ring 6, and the other end slides and seals through the tail end of the combustion cylinder 2. Pushing or pulling the first control rod 10 can cause the first refractory ring 6 to extend or retract along the combustion cylinder 2.

[0022] like Figure 2 As shown, the second control component 9 includes a second control rod 11 arranged along the length of the combustion cylinder 2; one end of the second control rod 11 is connected to the second refractory ring 8, and the other end slides and seals through the end of the positioning shell 4 away from the flange 5. Pushing or pulling the second control rod 11 can cause the second refractory ring 8 to extend or retract along the combustion cylinder 2.

[0023] like Figure 2 As shown, a first adjusting sleeve 12 is externally threaded to the tail end of the combustion cylinder 2; a first connecting ring 13 is coaxially rotatably sleeved inside the first adjusting sleeve 12; one end of the first control rod 10 protrudes from the combustion cylinder 2 and is connected to the first connecting ring 13. By rotating the first adjusting sleeve 12, the distance between the first connecting ring 13 and the tail end of the combustion cylinder 2 can be adjusted, thereby driving the first control rod 10 to push and pull the first refractory ring 6.

[0024] like Figure 2 As shown, a second adjusting sleeve 14 is threadedly connected to the outside of the combustion cylinder 2; a second connecting ring 15 is coaxially rotatably sleeved on the second adjusting sleeve 14; one end of the second control rod 11 protruding from the positioning shell 4 is connected to the second connecting ring 15. By rotating the second adjusting sleeve 14, its position along the combustion cylinder 2 can be changed, thereby causing the second connecting ring 15 to move as well, realizing the push-pull action of the second control rod 11 on the second refractory ring 8.

[0025] like Figure 2 As shown, the positioning shell 4 is connected to the outer wall of the combustion cylinder 2 via a reinforcing rod 16. The reinforcing rod 16 improves the connection rigidity and ensures the stability of the connection between the positioning shell 4 and the combustion cylinder 2.

[0026] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A boiler burner, comprising a burner body (1), characterized in that: The combustion cylinder (2) of the burner body (1) is arranged horizontally, and its side wall is connected to the output end of the burner body (1) through the mounting pipe (3); a positioning shell (4) is fixedly fitted on the outside of the combustion cylinder (2); the positioning shell (4) is used to connect to the boiler through the flange (5); the combustion cylinder (2) is provided with a first fire outlet assembly and a second fire outlet assembly; The first ignition outlet assembly includes a first refractory ring (6) that is slidably sleeved on the inner side of the outlet end of the combustion cylinder (2); a first control element (7) for pushing and pulling the first refractory ring (6) along the combustion cylinder (2) is connected to the first refractory ring (6). The second ignition outlet assembly includes a second fire-resistant ring (8) that is slidably sleeved on the outside of the outlet end of the combustion tube (2); a second control element (9) is connected to the second fire-resistant ring (8) for pushing and pulling it along the combustion tube (2).

2. A boiler burner according to claim 1, characterized in that: The first control element (7) includes a first control rod (10) arranged along the length of the combustion cylinder (2); one end of the first control rod (10) is connected to the first refractory ring (6), and the other end slides through the tail end of the combustion cylinder (2).

3. A boiler burner according to claim 1, characterized in that: The second control component (9) includes a second control rod (11) arranged along the length of the combustion cylinder (2); one end of the second control rod (11) is connected to the second fire-resistant ring (8), and the other end slides through the positioning shell (4) away from the flange (5).

4. A boiler burner according to claim 2, characterized in that: The tail end of the combustion cylinder (2) is externally threaded with a first adjusting sleeve (12); a first connecting ring (13) is coaxially rotatably sleeved inside the first adjusting sleeve (12); the first control rod (10) protrudes from one end of the combustion cylinder (2) and is connected to the first connecting ring (13).

5. A boiler burner according to claim 3, characterized in that: The combustion cylinder (2) is externally threaded with a second adjusting sleeve (14); a second connecting ring (15) is coaxially rotatably sleeved on the second adjusting sleeve (14); one end of the second control rod (11) protrudes from the positioning shell (4) and is connected to the second connecting ring (15).

6. A boiler burner according to claim 1, characterized in that: The positioning shell (4) is connected to the outer wall of the combustion cylinder (2) through a reinforcing rod (16).

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