Anti-seismic reinforcing structure for boiler

Abstract

The utility model relates to a boiler equipment technical field discloses a kind of anti-shock reinforcing structure for boiler, including boiler device, stand, crossbeam, and the supporting reinforcing mechanism being arranged between stand and crossbeam and the fixed shockproof mechanism being arranged between stand and boiler device, the supporting reinforcing mechanism includes first connecting rod and second connecting rod by screw connection, two pole ends are rotatably connected with universal connecting piece, the universal connecting piece is connected with clamping plate, the clamping plate is clamped on the crossbeam with the stand by fixed plate and fixed bolt.The utility model forms stable triangle structure by supporting reinforcing mechanism, enhances the rigidity and anti-lateral displacement capacity of external frame, simultaneously, by fixed shockproof mechanism, the vibration energy of boiler is absorbed and dissipated, the impact of vibration to equipment and pipeline is reduced, the effective combination of rigid support and flexible shock absorption is realized, and the operation stability and anti-shock safety of boiler system are comprehensively improved.

Description

Technical Field

[0001] This utility model relates to the field of boiler equipment technology, and in particular to a seismic reinforcement structure for boilers. Background Technology

[0002] Boilers, as important thermal power equipment, are widely used in industrial production and civil heating. Given the huge weight and volume of the boiler body, it needs to be supported and fixed by an external steel structure frame. This frame is generally made up of multiple columns and beams connected between the columns by welding or bolting, forming a basic load-bearing structure.

[0003] However, this simple rectangular frame composed of columns and beams is prone to stress concentration at the connection nodes when subjected to seismic waves or lateral impact forces generated by the operation of the equipment itself. This causes shear deformation of the entire frame structure, resulting in insufficient overall lateral stiffness. Under long-term reciprocating loads, the connection parts may loosen or suffer fatigue damage, affecting the stability of the entire support system.

[0004] The connection between the boiler body and the supporting frame is relatively rigid, lacking effective buffering and energy dissipation mechanisms. When the boiler starts, stops, or the combustion is unstable, the vibrations generated will be directly transmitted to the supporting frame without attenuation. Conversely, external vibrations will also be directly transmitted to the boiler body. This direct energy transmission not only exacerbates the burden on the frame structure but also causes continuous impact on weak points such as the boiler body's pipe openings and welds, posing a safety hazard.

[0005] Existing boiler reinforcement methods generally suffer from the core problem of insufficient balance between structural rigidity and vibration energy dissipation mechanisms. That is, simple frame reinforcement cannot absorb vibration energy, while simple vibration reduction measures cannot provide sufficient structural rigidity, resulting in insufficient guarantee of the safety and reliability of the boiler system under dynamic loads.

[0006] Therefore, this utility model proposes a seismic reinforcement structure for boilers to address the shortcomings of existing technologies. Utility Model Content

[0007] In view of the problems existing in the seismic reinforcement structure for boilers, such as insufficient overall rigidity of the support frame, easy deformation under lateral load, lack of effective shock absorption and buffering mechanism between the boiler body and the frame, and inability to effectively absorb and dissipate vibration energy, this utility model aims to provide a seismic reinforcement structure for boilers with improved structure that can effectively solve the above problems.

[0008] This utility model provides a seismic reinforcement structure for boilers, including a boiler unit, columns, beams; as well as a support and reinforcement mechanism and a fixed seismic isolation mechanism.

[0009] The supporting and reinforcing mechanism includes a first connecting rod, a second connecting rod, a universal connector, a clamping plate, a fixing plate, and fixing bolts. The fixed shock-absorbing mechanism includes a support rod, a mounting shell, a damper, an arc plate, and an anti-slip plate.

[0010] Furthermore, the support and reinforcement mechanism is located at the angle between the crossbeam and the column. The first connecting rod and the second connecting rod are connected by a threaded connection. The bottom end of the first connecting rod and the top end of the second connecting rod are respectively connected to the universal connector by a rotatable connection. The universal connector is connected to the clamping plate by a fixed connection. The clamping plate is snapped onto the crossbeam or the column. The fixing plate is accommodated inside the clamping plate. The fixing bolt is threaded through the clamping plate and abuts against the fixing plate. The fixed shock-absorbing mechanism is fixedly connected to the outer wall of the column by the support rod. The damper is fixedly connected to the inner wall of the mounting shell. The end of the damper away from the inner wall of the mounting shell is fixedly connected to the arc plate. The anti-slip plate is fixedly connected to the inner side wall of the arc plate. The surface of the anti-slip plate away from the arc plate is tightly fitted to the outer wall of the boiler device.

[0011] Preferably, the first connecting rod and the second connecting rod are located on the same axis. The outer surface of the first connecting rod is provided with an external thread, and the interior of the second connecting rod is provided with an internal thread hole. The threaded end of the first connecting rod is inserted into the internal thread hole of the second connecting rod to form an adjustable length threaded engagement.

[0012] Preferably, the clamp has a U-shaped groove structure, and the inner width of the clamp is designed to be greater than the width of the crossbeam or the width of the column, so that the clamp can be easily fitted onto the outside of the crossbeam or the column.

[0013] Preferably, there are two fixing bolts, which are threaded through the front and rear side walls of the clamping plate, respectively. The fixing plate is clamped between the ends of the two fixing bolts. By rotating the fixing bolts, the fixing plate can be pushed to clamp the crossbeam or the column.

[0014] Preferably, the mounting shell has a cavity structure with one end open, the opening of the mounting shell facing the boiler device, and the damper is accommodated inside the cavity of the mounting shell, providing installation space and protection for the damper.

[0015] Preferably, the number of dampers is at least two, and the at least two dampers are symmetrically distributed about the central axis of the mounting shell, and the dampers are all fixedly connected to the outer wall of the arc-shaped plate. This symmetrical arrangement ensures smoother force transmission.

[0016] Preferably, the radius of curvature of the arc-shaped plate is adapted to the radius of curvature of the outer wall of the boiler device to ensure that the two can make large-area contact. The anti-slip plate is mainly made of elastic and wear-resistant materials such as rubber or silicone, and the surface of the anti-slip plate is also provided with anti-slip texture to increase the coefficient of friction and protect the surface of the boiler device.

[0017] Preferably, the support and reinforcement mechanism is installed at an angle of 45 to 60 degrees relative to the right angle formed by the crossbeam and the column, so that the column, the crossbeam and the support and reinforcement mechanism together form a high-strength triangular stable structure.

[0018] This utility model has the following beneficial effects: 1. This utility model, by setting up a support and reinforcement mechanism composed of a first connecting rod, a second connecting rod and a universal connector, forms a stable triangular bracing structure between the crossbeams and columns of the boiler's external frame. This solves the problems of insufficient rigidity of the boiler's external frame connection and easy deformation under vibration or seismic loads in the prior art, and achieves the effect of significantly improving the overall structural rigidity and anti-lateral displacement ability, effectively dispersing the load, and preventing stress concentration damage at the frame nodes.

[0019] 2. This utility model solves the problem of lack of flexible buffer and energy dissipation mechanism between the boiler body and the support frame in the prior art by installing a fixed anti-vibration mechanism on the column and making the damper and anti-slip plate at the front end of the mechanism abut against the outer wall of the boiler device. It can actively absorb the vibration energy generated during boiler operation, efficiently convert kinetic energy into heat energy dissipation, and greatly reduce the impact of vibration on the boiler body and connecting pipes, thereby improving the stability and safety of equipment operation. Attached Figure Description

[0020] Figure 1 This is a perspective view of a seismic-resistant reinforcement structure for a boiler proposed in this utility model; Figure 2 This is a front view of a seismic reinforcement structure for a boiler proposed in this utility model; Figure 3 This is a diagram illustrating the support and reinforcement mechanism of a seismic-resistant reinforcement structure for boilers proposed in this utility model. Figure 4 This is a partial structural exploded view of a seismic-resistant reinforcement structure for boilers proposed in this utility model; Figure 5 This is a diagram illustrating a fixed anti-vibration mechanism for a boiler seismic reinforcement structure proposed in this utility model. Figure 6 This is a partial structural cross-sectional view of a seismic reinforcement structure for boilers proposed in this utility model.

[0021] Legend: 1. Boiler unit; 2. Support and reinforcement mechanism; 201. First connecting rod; 202. Second connecting rod; 203. Universal connector; 204. Clamping plate; 205. Fixing plate; 206. Fixing bolt; 3. Fixed shockproof mechanism; 301. Support rod; 302. Mounting shell; 303. Damper; 304. Curved plate; 305. Anti-slip plate; 4. Crossbeam; 5. Column. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the 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, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0023] Example: Please refer to Figures 1 to 6 This utility model provides a seismic reinforcement structure for boilers, which aims to solve the problems of insufficient rigidity of the external reinforcement frame of boilers and lack of an effective mechanism for absorbing vibration energy in the prior art.

[0024] Please refer to Figure 1 and Figure 2 The seismic reinforcement structure for boilers includes a boiler unit 1, and columns 5 and beams 4 arranged around the boiler unit 1. The boiler unit 1 is the main equipment to be reinforced and damped. Multiple columns 5 are distributed around the boiler unit 1 to provide vertical support for the overall structure. Beams 4 are installed between adjacent columns 5 by a fixed connection. The beams 4 and columns 5 together form an external frame structure for surrounding the boiler unit 1.

[0025] Please refer to Figure 3 and Figure 4The support and reinforcement mechanism 2 includes a first connecting rod 201, a second connecting rod 202, a universal connector 203, a clamping plate 204, a fixing plate 205, and fixing bolts 206. The top end of the first connecting rod 201 is connected to the bottom end of the second connecting rod 202 by a threaded connection. This connection method is used to adjust the overall length of the support and reinforcement mechanism 2 by rotating the first connecting rod 201 or the second connecting rod 202. The top end of the second connecting rod 202 and the bottom end of the first connecting rod 201 are both connected to the universal connector 203 by a rotatable connection. 203 is used to allow the support and reinforcement mechanism 2 to be adjusted at multiple angles during installation. The top of the universal connector 203 is connected to a clamping plate 204 by a fixed connection. The clamping plate 204 is used to snap and fix to the crossbeam 4 or column 5. The top of the inner wall of the clamping plate 204 is connected to a fixing plate 205 by a threaded connection. The front and rear sides of the clamping plate 204 are connected to fixing bolts 206 by a threaded connection. This combination structure of clamping plate 204, fixing plate 205 and fixing bolts 206 ensures that the support and reinforcement mechanism 2 can be firmly installed on the external frame.

[0026] Please refer to Figure 5 and Figure 6 The fixed shock-absorbing mechanism 3 includes a support rod 301, a mounting shell 302, a damper 303, an arc plate 304, and an anti-slip plate 305. The front end of the support rod 301 is fixedly connected to the mounting shell 302. The inner wall of the mounting shell 302 is fixedly connected to the damper 303. The front end of the damper 303 is fixedly connected to the arc plate 304. The inner side of the outer wall of the arc plate 304 is fixedly connected to the anti-slip plate 305. The inner surface of the anti-slip plate 305 is used to adhere to and clamp the outer wall of the column 5. Through this series structure from the support rod 301 to the anti-slip plate 305, the fixed shock-absorbing mechanism 3 forms a shock-absorbing unit that can act on the column 5.

[0027] As a preferred embodiment, please refer to Figure 3 and Figure 4 The support and reinforcement mechanism 2 is attached to the bottom wall of the crossbeam 4 by the upper clamping plate 204 and to the outer wall of the column 5 by the lower clamping plate 204, thereby forming a stable diagonal support structure between the crossbeam 4 and the column 5. This diagonal support greatly enhances the frame's resistance to lateral displacement.

[0028] As another preferred embodiment, the inner wall of the clamping plate 204 is pressed against the bottom wall of the crossbeam 4 or the outer wall of the column 5, and the fixing plate 205 is pushed by rotating the fixing bolt 206, thereby tightly clamping the crossbeam 4 or the column 5 between the fixing plate 205 and the inner wall of the clamping plate 204 to achieve reliable fastening installation.

[0029] As a preferred embodiment, please refer to Figure 6 There are two dampers 303, which are symmetrically distributed about the central axis of the mounting shell 302. This arrangement allows the force to be transmitted evenly.

[0030] In a preferred embodiment, the inner surface of the anti-slip plate 305 is connected to the outer wall of the column 5 by friction, which is used to transfer energy when the column 5 vibrates.

[0031] As another preferred embodiment, the top end of the second connecting rod 202 and the bottom end of the first connecting rod 201 are connected to the universal connector 203 by a ball joint connection. The ball joint connection provides the maximum degree of rotational freedom and is easy to install.

[0032] In a preferred embodiment, the clamping plate 204 has a U-shaped structure, and the fixing bolt 206 is threaded through the two side walls of the clamping plate 204. The end of the fixing bolt 206 is used to abut against the surface of the fixing plate 205.

[0033] As a preferred embodiment, the fixed shock-absorbing mechanism 3 is arranged around the column 5 to form a surrounding shock-absorbing layout.

[0034] Working principle: When constructing the external structural frame of the boiler unit 1, the length of the support and reinforcement mechanism 2 is adjusted by rotating the first connecting rod 201 or the second connecting rod 202. The upper clamping plate 204 is brought closer and its inner wall is pressed against the bottom wall of the crossbeam 4. The lower clamping plate 204 is brought closer and its inner wall is pressed against the outer wall of the column 5. Then, the clamping plate 204 is firmly fixed by driving the fixing plate 205 through the fixing bolt 206. This forms an oblique support between the crossbeam 4 and the column 5, which strengthens the connection rigidity between the crossbeam 4 and the column 5, improves the overall resistance to lateral displacement, and effectively disperses vibration loads. When reinforcing the boiler unit 1, a fixed anti-vibration mechanism 3 is fixedly connected to the middle of the outer wall of the column 5 near the boiler unit 1 via a support rod 301. When the column 5 vibrates during operation, it will sway irregularly and come into contact with the anti-slip plate 305. Due to the friction between the anti-slip plate 305 and the outer wall of the column 5, the kinetic energy of the vibration will be transferred to the damper 303 through the arc plate 304. The internal friction of the damper 303 will convert the kinetic energy into heat energy and dissipate it. By arranging the fixed anti-vibration mechanism 3 around the column 5, the energy generated by the vibration is prevented from accumulating at the structural connection, and the impact of the vibration on the structure is reduced.

Claims

1. A seismic reinforcement structure for boilers, comprising: A boiler device (1) is surrounded by columns (5), and a crossbeam (4) is fixedly connected to each adjacent side of the columns (5). Its features are, A support and reinforcement mechanism (2) is provided at the angle between the crossbeam (4) and the column (5), and a fixed shockproof mechanism (3) is fixedly connected to the middle of the outer wall of the column (5) near the boiler device (1). The support and reinforcement mechanism (2) includes a first connecting rod (201), a second connecting rod (202), a universal connector (203), a clamping plate (204), a fixing plate (205), and fixing bolts (206). The top end of the first connecting rod (201) is threadedly connected to the second connecting rod (202). The top end of the second connecting rod (202) and the bottom end of the first connecting rod (201) are both rotatably connected to the universal connector (203). The top end of the universal connector (203) is fixedly connected to the clamping plate (204). The clamping plate (204) is used to clamp onto the crossbeam (4) or the column (5). The top of the inner wall of the clamping plate (204) is threadedly connected to the fixing plate (205), and the front and rear sides of the clamping plate (204) are threadedly connected to the fixing bolts (206). The fixed shockproof mechanism (3) includes a support rod (301), a mounting shell (302), a damper (303), an arc plate (304), and an anti-slip plate (305). The front end of the support rod (301) is fixedly connected to the mounting shell (302). The damper (303) is fixedly connected to the inner wall of the mounting shell (302). The front end of the damper (303) is fixedly connected to the arc plate (304). The anti-slip plate (305) is fixedly connected to the inner side of the outer wall of the arc plate (304). The inner surface of the anti-slip plate (305) is used to adhere to and clamp the outer wall of the column (5).

2. The seismic reinforcement structure for a boiler according to claim 1, characterized in that, The support and reinforcement mechanism (2) is engaged with the bottom wall of the beam (4) by the upper clamping plate (204) and with the outer wall of the column (5) by the lower clamping plate (204), thereby forming an oblique support between the beam (4) and the column (5).

3. The seismic reinforcement structure for a boiler according to claim 2, characterized in that, The inner wall of the clamp (204) is close to the bottom wall of the crossbeam (4) or the outer wall of the column (5), and the fixing plate (205) is installed inside the clamp (204) by the fixing bolt (206) to achieve fastening.

4. The seismic reinforcement structure for a boiler according to claim 1, characterized in that, The number of dampers (303) is two, and the two dampers (303) are symmetrically distributed about the central axis of the mounting shell (302).

5. The seismic reinforcement structure for a boiler according to claim 1, characterized in that, The inner surface of the anti-slip plate (305) is connected to the outer wall of the boiler device (1) by friction.

6. The seismic reinforcement structure for a boiler according to claim 1, characterized in that, The top end of the second connecting rod (202) and the bottom end of the first connecting rod (201) are connected to the universal connector (203) by ball joint connection.

7. A seismic-resistant reinforcement structure for a boiler according to claim 3, characterized in that, The clamping plate (204) has a U-shaped structure, and the fixing bolt (206) is threaded through the two side walls of the clamping plate (204). The end of the fixing bolt (206) is used to abut against the fixing plate (205).

8. The seismic reinforcement structure for a boiler according to claim 1, characterized in that, The fixed shock-absorbing mechanism (3) is arranged around the column (5).

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