A coordination device for boiler combustion twice wind

Abstract

The utility model relates to a boiler wind coordination device technical field, concretely relates to a kind of coordination device for twice wind of boiler combustion, including main pipe and two groups of branch pipe communicated with main pipe, the top of branch pipe is fixed with mounting bracket, the top of mounting bracket is fixed with control assembly, the both ends of control assembly are kept communicated respectively with flow limiting component, flow limiting component includes cylinder, elbow piece, rotating rod and valve plate, the head of cylinder is fixed with mounting bracket by adapter, the output end of cylinder is connected with elbow piece by hinged seat and is set, the end of elbow piece is fixedly connected with rotating rod, rotating rod is fixed in connecting pipe, rotating rod and connecting pipe are fixedly connected by bolt, the bearing structure of the shaft of rotating rod through branch pipe upper and lower ends and cooperate bottom base, the stable support and flexible adjustment of twice wind flow path are realized, reliable structural basis is provided for the air supply required by combustion in boiler, ensure that airflow is transported smoothly.

Description

Technical Field

[0001] This utility model relates to the technical field of boiler air coordination devices, specifically to a coordination device for the two-stage air supply in boiler combustion. Background Technology

[0002] During boiler combustion, the rational distribution and precise control of the secondary air supply have a crucial impact on combustion efficiency, energy consumption, and operational safety. Currently, traditional boiler secondary air supply regulation devices mostly adopt a single control mechanism or a simple mechanical transmission structure, which has the following obvious limitations;

[0003] On the one hand, the existing equipment has low air volume regulation accuracy, making it difficult to achieve dynamic optimization of the two air ratios according to the combustion requirements of different boiler loads and different fuel types. Most equipment relies on manual adjustment or a crude control driven by a single pump, resulting in large deviations in the air volume between the two air streams. This easily leads to incomplete fuel combustion, which not only increases energy waste but also produces excessive pollutants due to incomplete combustion, failing to meet environmental protection requirements.

[0004] On the other hand, the mechanical transmission structure of traditional devices lacks stability. Some adjustment components are fixed by welding or connected by simple bushings. During long-term, high-frequency adjustments, problems such as component loosening and accelerated wear can easily occur, leading to adjustment failure or airflow fluctuations, which seriously affect the stability of boiler combustion. At the same time, the installation and maintenance process of such devices is complex, and component replacement requires complete disassembly, which not only increases downtime for maintenance but also raises operating costs.

[0005] Furthermore, existing equipment has poor adaptability and struggles to cope with the complex and ever-changing operating conditions of boilers. When boiler load changes drastically or fuel quality fluctuates, traditional equipment cannot respond quickly and adjust the secondary air supply precisely, which may lead to safety hazards such as localized high-temperature coking and unstable furnace pressure, threatening the long-term reliable operation of the boiler. Utility Model Content

[0006] Technical problems to be solved

[0007] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a coordinating device for secondary air in boiler combustion, which can effectively solve the problems in the existing technology.

[0008] Technical solution

[0009] This utility model provides a coordinating device for secondary air in boiler combustion, including a main pipe and two branch pipes connected to the main pipe. A mounting bracket is fixed to the top of each branch pipe, and a control component is fixed to the top of the mounting bracket. Both ends of the control component are connected to a flow-limiting component. The flow-limiting component includes a cylinder, a bend, a rotating rod, and a valve plate. The head of the cylinder is fixedly fitted to the mounting bracket via an adapter. The output end of the cylinder is fitted to the bend via a hinge seat. The end of the bend is fixedly connected to the rotating rod, which is fixed inside a connecting pipe. The rotating rod and the connecting pipe are fixedly connected by bolts.

[0010] Furthermore, the control assembly includes an inner frame fixed to the top of the mounting bracket, and two sets of control pumps are disposed within the inner frame.

[0011] Furthermore, one end of each set of control pumps is connected to the cylinder.

[0012] Furthermore, the rotating rod extends through both the upper and lower ends of the branch pipe.

[0013] Furthermore, a base is fixed to the bottom of both sets of pipes.

[0014] Furthermore, one end of the adapter is connected to a bend via a pin, and the bend has an L-shaped structure.

[0015] Furthermore, a circular hole is provided in the middle of the other end of the crank, and the rotating rod is fixed in the circular hole.

[0016] Furthermore, both the rotating rod and the connecting tube have side holes extending through their middle sections.

[0017] Furthermore, bolts are installed in the side holes of both sets of structures.

[0018] Furthermore, a bearing structure is fixed in the middle of the base, and the rotating rod is sleeved inside the bearing.

[0019] Beneficial effects

[0020] In this invention, from a structural design perspective, the device achieves stable support and flexible adjustment of the two airflow paths through the connection between the main pipe and the two branch pipes, combined with the bearing structure of the rotating rod passing through the upper and lower ends of the branch pipes and cooperating with the bottom base. This provides a reliable structural foundation for the air supply required for combustion in the boiler, ensuring smooth airflow. In terms of control, the two sets of control pumps within the inner frame of the control component are connected to corresponding cylinders, enabling precise control of the cylinder output. This, in turn, drives the rotating rod through a crank, achieving precise control of the airflow by the valve plate. This independent yet coordinated control method allows for flexible adjustment of the airflow ratio between the two airflows according to the needs of different combustion stages of the boiler, effectively improving combustion efficiency and reducing energy waste. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a top view of the structure of this utility model;

[0024] Figure 3 This is one of the structural schematic diagrams of the current limiting component and the control component in this utility model;

[0025] Figure 4 This is the second schematic diagram of the current limiting component and control component in this utility model.

[0026] The labels in the diagram represent: 1. Main pipe; 2. Branch pipe; 3. Mounting bracket; 4. Control component; 41. Inner frame; 42. Control pump; 5. Flow limiting component; 51. Cylinder; 511. Adapter; 52. Bend; 521. Hinge seat; 53. Rotating rod; 531. Bolt; 54. Valve plate; 55. Connecting pipe; 551. Side hole; 56. Base. Detailed Implementation

[0027] The technical solutions of various embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] 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 component 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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. It should be pointed out that all accompanying drawings are exemplary representations. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0031] Example: A coordinating device for secondary combustion air in a boiler, see attached document. Figure 1 -Appendix Figure 4 The system includes a main pipe 1 and two branch pipes 2 connected to the main pipe 1. The top end of each branch pipe 2 is fixed with a mounting bracket 3. The top end of each mounting bracket 3 is fixed with a control component 4. Both ends of the control component 4 are connected to a flow limiting component 5. The flow limiting component 5 includes a cylinder 51, a bend 52, a rotating rod 53, and a valve plate 54. The head of the cylinder 51 is fixedly sleeved with the mounting bracket 3 through an adapter 511. The output end of the cylinder 51 is sleeved and connected to the bend 52 through a hinge seat 521. The end of the bend 52 is fixedly connected to the rotating rod 53. The rotating rod 53 is fixed inside a connecting pipe 55. The rotating rod 53 and the connecting pipe 55 are fixedly connected by bolts 531.

[0032] The control component 4 includes an inner frame 41 fixed to the top of the mounting bracket 3. Two sets of control pumps 42 are installed inside the inner frame 41, and one end of each set of control pumps 42 is connected to the cylinder 51. The device can effectively control the combustion temperature and flame pattern in the boiler by precisely adjusting the air volume of the two sets of air, avoiding safety hazards such as coking and deflagration caused by local high temperature or lack of oxygen. The stable air supply and reasonable airflow distribution can reduce the thermal deviation of the boiler heating surface, extend the service life of the boiler body, and provide a strong guarantee for the safe and stable operation of the boiler.

[0033] The rotating rod 53 passes through the upper and lower ends of the branch pipe 2, and a base 56 is fixed at the bottom of both branch pipes 2; the rotating rod 53 and the connecting pipe 55 are both provided with side holes 551 in the middle, and bolts 531 are set in the side holes 551 of the two structures.

[0034] One end of the adapter 511 is connected to the bend 52 via a pin. The bend 52 has an L-shaped structure, and a circular hole is opened in the middle of the other end of the bend 52. The rotating rod 53 is fixed in the circular hole. The rotating rod 53 passes through the upper and lower ends of the branch pipe 2, and the bottom is stably supported by the bearing structure of the base 56, which reduces the radial deviation during rotation, reduces mechanical wear, and extends the service life of the components. The rotating rod 53 is fixed to the connecting pipe 55 by bolts 531 through the side hole 551. The bend 52 is connected to the output end of the cylinder 51, and the rotating rod 53 is connected by a hinge seat 521 and a pin. The multiple stable connection methods ensure the structural integrity of the device during high-frequency adjustment and long-term operation, and avoid the impact of loose components on the air volume control accuracy.

[0035] A bearing structure is fixed in the middle of the base 56, and the rotating rod 53 is sleeved in the bearing. Two sets of control pumps 42 in the control component 4 are independently connected to the corresponding cylinders 51, which can precisely drive the output end of the cylinder 515 to move. Through the force transmission of the L-shaped bend 52, the rotating rod 53 is driven to rotate stably, thereby realizing the fine adjustment of the air volume of the valve plate 54. This collaborative control mechanism can flexibly adjust the ratio of the two air according to the real-time needs of boiler combustion, ensuring that the fuel is fully burned in the oxygen-rich environment, reducing the residue of unburned materials, and significantly improving combustion efficiency. Each component adopts a modular design. The connection method of components such as the adapter 511, bend 52, and rotating rod 53 is simple and standardized, which facilitates quick on-site installation and subsequent disassembly and maintenance. The detachable connection structure such as bolt 531 fixing and pin sleeve means that when a single component fails, there is no need to replace the whole thing, which greatly shortens the maintenance cycle and reduces the replacement cost of spare parts and labor costs.

[0036] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A coordinating device for secondary air combustion in a boiler, characterized in that, The system includes a main pipe (1) and two branch pipes (2) connected to the main pipe (1). The top end of each branch pipe (2) is fixed with a mounting bracket (3). The top end of the mounting bracket (3) is fixed with a control component (4). Both ends of the control component (4) are connected to a flow limiting component (5). The flow limiting component (5) includes a cylinder (51), a bend (52), a rotating rod (53), and a valve plate (54). The head of the cylinder (51) is fixedly fitted to the mounting bracket (3) through an adapter (511). The output end of the cylinder (51) is fitted to the bend (52) through a hinge seat (521). The end of the bend (52) is fixedly connected to the rotating rod (53). The rotating rod (53) is fixed inside a connecting pipe (55). The rotating rod (53) and the connecting pipe (55) are fixedly connected by bolts (531).

2. The coordinating device for secondary combustion air in a boiler according to claim 1, characterized in that, The control component (4) includes an inner frame (41) fixed to the top of the mounting bracket (3), and two sets of control pumps (42) are provided inside the inner frame (41).

3. The coordinating device for secondary combustion air in a boiler according to claim 2, characterized in that, One end of each control pump (42) is connected to the cylinder (51).

4. The coordinating device for secondary air combustion in a boiler according to claim 1, characterized in that, The rotating rod (53) passes through the upper and lower ends of the branch pipe (2).

5. A coordinating device for secondary combustion air in a boiler according to claim 4, characterized in that, A base (56) is fixed at the bottom of each of the two sets of pipes (2).

6. A coordinating device for secondary combustion air in a boiler according to claim 1, characterized in that, One end of the adapter (511) is connected to the crank (52) by a pin, and the crank (52) has an L-shaped structure.

7. A coordinating device for secondary combustion air in a boiler according to claim 6, characterized in that, The other end of the bend (52) has a circular hole in the middle, and the rotating rod (53) is fixed in the circular hole.

8. A coordinating device for secondary combustion air in a boiler according to claim 7, characterized in that, Both the rotating rod (53) and the connecting pipe (55) have side holes (551) through their middle sections.

9. A coordinating device for secondary combustion air in a boiler according to claim 8, characterized in that, Bolts (531) are installed in the side holes (551) of the two sets of structures.

10. A coordinating device for secondary combustion air in a boiler according to claim 5, characterized in that, The base (56) has a bearing structure fixed in the middle, and the rotating rod (53) is sleeved in the bearing.

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