A boiler tube panel stay optimized reinforcement structure

Abstract

The utility model relates to fixing device technical field discloses a kind of boiler pipe row pipe support optimization reinforcing structure, including mounting plate, elastic support pad and protection assembly, 8-shaped fixing mechanism and telescopic compensation assembly are provided on the mounting plate, the 8-shaped fixing mechanism includes lower clamp, the lower clamp is slidably connected on mounting plate, the lower clamp is fixedly connected with upper clamp by bolt.The utility model in, by the use of 8-shaped fixing mechanism, the elastic support pad between lower clamp and upper clamp is closely attached to pipe wall, in the flow process, when making pipe row produce vibration, elastic support pad produces deformation and absorbs vibration force, simultaneously, after elastic support pad deformation, gas in it enters fixed cylinder by connecting pipe and extrudes piston ring, under the cooperation of damper and extruding spring, can absorb pipe row vibration energy, avoid the erosion and abrasion of pipe row and pipe support contact site, significantly prolong the service life of boiler pipe row.

Description

Technical Field

[0001] This utility model relates to the field of fixing device technology, and in particular to an optimized and reinforced structure for boiler tube bank support. Background Technology

[0002] Boiler tube banks, as the core component of boiler heat exchange systems, are responsible for the heat transfer between high-temperature flue gas and the working fluid, and are widely used in thermal power, chemical, and metallurgical industries. The tube support structure, as the "skeleton support" of the tube bank, has the core function of fixing the tube bundle spacing, suppressing tube bank vibration, preventing collisions and wear between tubes, and simultaneously reserving a reasonable passage for flue gas flow.

[0003] Currently, traditional comb-shaped tube supports use a "rigid snap-fit" method to fix the tubes, leaving a 1-2mm gap between the plate and the tube wall to accommodate thermal expansion. This gap causes the tube bank to vibrate under flue gas disturbance, and erosion and wear occur at the contact points between the tubes and the tube support, thus affecting the service life of the boiler tube bank. To address this issue, an optimized and reinforced structure for boiler tube bank supports is proposed. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides an optimized and reinforced structure for boiler tube bank support, which aims to improve the problem in the prior art where the gap at the tube bank fixing point causes the tube bank to vibrate under flue gas disturbance, and the contact area between the tube and the support experiences erosion and wear.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an optimized and reinforced structure for boiler tube bank support, comprising a mounting plate, wherein the mounting plate is provided with an 8-shaped fixing mechanism and a telescopic compensation component, the 8-shaped fixing mechanism comprising:

[0006] The lower clamp is slidably connected to the mounting plate, and the upper clamp is fixedly connected to the lower clamp by bolts;

[0007] An elastic support pad is disposed in the lower clamp and the upper clamp;

[0008] A protective component is mounted on the upper clamp.

[0009] As a further description of the above technical solution:

[0010] The protective assembly includes a fixed cylinder, a piston ring, a damper, and a compression spring. The fixed cylinder is fixedly connected to the top of the upper clamp. The piston ring is piston-connected in the fixed cylinder. The damper is fixedly installed in the fixed cylinder and is fixedly connected to the piston ring. The piston ring is elastically connected to the inner wall of the fixed cylinder by the compression spring.

[0011] As a further description of the above technical solution:

[0012] The elastic support pad is filled with gas, and a connecting pipe is connected to the elastic support pad. A connector is fixedly connected to the end of the connecting pipe away from the elastic support pad.

[0013] As a further description of the above technical solution:

[0014] The bottom of the fixed cylinder has a connection port, and the connection port is threadedly connected to the connector.

[0015] As a further description of the above technical solution:

[0016] The upper clamp has a through hole that matches the connecting pipe.

[0017] As a further description of the above technical solution:

[0018] An elastic reinforcing ring is embedded in the inner surface of the elastic support pad.

[0019] As a further description of the above technical solution:

[0020] The telescopic compensation component includes a fixed block, a guide rod, and an elastic pad. The fixed block is fixedly connected to the mounting plate, the guide rod is fixedly connected to the fixed block, the elastic pad is sleeved on the guide rod, and the lower clamp has a circular hole that matches the guide rod.

[0021] As a further description of the above technical solution:

[0022] A dovetail block is fixedly connected to the outer wall of the mounting plate, and a dovetail groove is formed on the outer wall of the mounting plate.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, through the use of the figure-eight fixing mechanism, the elastic support pad between the lower clamp and the upper clamp is tightly attached to the pipe wall. When the flue gas in the pipe bank vibrates during the flow process, the elastic support pad deforms to absorb the vibration force. At the same time, after the elastic support pad deforms, the gas in it enters the fixed cylinder through the connecting pipe to squeeze the piston ring. Under the action of the damper and the compression spring, the vibration energy of the pipe bank can be absorbed, avoiding erosion and wear at the contact part between the pipe bank and the pipe support, and significantly extending the service life of the boiler pipe bank.

[0025] 2. In this utility model, by using the telescopic compensation component, the guide rod and the elastic pad cooperate to allow the lower clamp to slide along the guide rod as the tube bank expands and contracts with the heat, avoiding stress generated by rigid constraints. This allows the figure-eight fixing mechanism to follow the small movement when the boiler tube bank expands and contracts with the heat, further preventing erosion and wear at the contact points between the tube bank and the tube support. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the boiler tube bank support optimization and reinforcement structure proposed in this utility model;

[0027] Figure 2 This is a schematic cross-sectional view of an optimized and reinforced structure for boiler tube bundle supports proposed in this utility model.

[0028] Figure 3 This utility model proposes an optimized and reinforced structure for boiler tube bank support. Figure 2 Schematic diagram of structure A in the middle;

[0029] Figure 4 This is a schematic diagram of an elastic support pad structure for an optimized and reinforced boiler tube bank structure proposed in this utility model;

[0030] Figure 5 This is a partial three-dimensional structural diagram of an optimized and reinforced boiler tube support structure proposed in this utility model.

[0031] Legend:

[0032] 1. Mounting plate; 2. Figure-8 fixing mechanism; 3. Telescopic compensation component; 101. Dovetail block; 102. Dovetail groove; 21. Lower clamp; 22. Upper clamp; 23. Bolt; 24. Elastic support pad; 25. Protective component; 241. Connecting pipe; 242. Connector; 243. Elastic reinforcing ring; 251. Fixing cylinder; 252. Piston ring; 253. Damper; 254. Compression spring; 31. Fixing block; 32. Guide rod; 33. Elastic pad. Detailed Implementation

[0033] 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.

[0034] Reference Figures 1-3This utility model provides an embodiment of an optimized and reinforced structure for boiler tube bank support, comprising a mounting plate 1, on which an 8-shaped fixing mechanism 2 and a telescopic compensation component 3 are provided. The 8-shaped fixing mechanism 2 includes a lower clamp 21, an elastic support pad 24, and a protective component 25. The lower clamp 21 is slidably connected to the mounting plate 1, and the lower clamp 21 is fixedly connected to an upper clamp 22 by bolts 23. The elastic support pad 24 is disposed between the lower clamp 21 and the upper clamp 22, and the protective component 25 is disposed on the upper clamp 22. The boiler tube bank is fixed by placing it on the elastic support pad 24 of the lower clamp 21 and then installing the upper clamp 22 on the lower clamp 21 by bolts 23.

[0035] Reference Figures 2-4 The elastic support pad 24 is filled with gas, and a connecting pipe 241 is connected to the elastic support pad 24. A through hole is provided on the upper clamp 22, and the through hole matches the connecting pipe 241. A connector 242 is fixedly connected to the end of the connecting pipe 241 away from the elastic support pad 24. The protective assembly 25 includes a fixed cylinder 251, a piston ring 252, a damper 253, and a compression spring 254. A connection port is provided at the bottom of the fixed cylinder 251, and the connection port is threadedly connected to the connector 242. The fixed cylinder 251 is fixedly connected to the top of the upper clamp 22. The piston ring 252 is piston-connected to the fixed cylinder 251. The damper 253 is fixedly installed... Installed in the fixed cylinder 251, the damper 253 is fixedly connected to the piston ring 252. The piston ring 252 is elastically connected to the inner wall of the fixed cylinder 251 through the compression spring 254. When the flue gas in the tube bank vibrates during the flow, the elastic support pad 24 deforms to absorb the vibration force. At the same time, after the elastic support pad 24 deforms, the gas in it enters the fixed cylinder 251 through the connecting pipe 241 to compress the piston ring 252. Under the combined action of the damper 253 and the compression spring 254, the vibration energy of the tube bank can be absorbed, avoiding erosion and wear at the contact parts between the tube bank and the tube support, and significantly extending the service life of the boiler tube bank.

[0036] An elastic reinforcing ring 243 is embedded in the inner surface of the elastic support pad 24, thereby improving the support strength of the elastic support pad 24.

[0037] Reference Figure 5 The expansion and contraction compensation component 3 includes a fixed block 31, a guide rod 32, and an elastic pad 33. The fixed block 31 is fixedly connected to the mounting plate 1, the guide rod 32 is fixedly connected to the fixed block 31, and the elastic pad 33 is sleeved on the guide rod 32. The lower clamp 21 has a round hole that matches the guide rod 32. When the boiler tube bank expands and contracts with heat, the lower clamp 21 slides along the guide rod 32 with the tube bank to avoid stress caused by rigid constraints. As a result, the figure-eight fixing mechanism 2 can follow the small movement, further preventing erosion and wear at the contact points between the tube bank and the tube support.

[0038] Reference Figure 1 A dovetail block 101 is fixedly connected to the outer wall of the mounting plate 1, and a dovetail groove 102 is provided on the outer wall of the mounting plate 1. In this way, multiple sets of mounting plates 1 can be spliced ​​together, thus making it suitable for boiler tube banks with different numbers of sets.

[0039] It should be noted that all standard parts used in this application can be purchased from the market, and the specific connection methods of each part are all conventional methods such as riveting and welding that are mature in the prior art. In addition, the standard parts are all conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art.

[0040] Working principle: When in use, firstly, according to the number of boiler tube banks, multiple sets of mounting plates 1 are spliced ​​together by the dovetail block 101 and dovetail groove 102 on the outer wall of the mounting plate 1, so that the overall length of the mounting plate 1 is adapted to the distribution range of the tube banks, and the spliced ​​mounting plate 1 is fixed in the preset position of the boiler steel frame.

[0041] Next, the connecting tube 241 is passed through the through hole of the upper clamp 22 and screwed into the connecting port at the bottom of the fixed cylinder 251 through the connector 242, thus completing the assembly of the protective component 25 and the elastic support pad 24. At this time, the piston ring 252 inside the fixed cylinder 251 is in the initial position under the action of the compression spring 254.

[0042] Next, place the boiler tube bank to be fixed onto the elastic support pad 24, and adjust the position of the tube bank so that the axis is aligned with the center of the clamp; make sure the elastic support pad 24 completely covers the outer wall of the tube bank, insert the bolts 23 and tighten them gradually. When the high-temperature flue gas flow causes the tube bank to vibrate, the tube bank squeezes the elastic support pad 24, causing it to deform and absorb some of the vibration energy; at the same time, the gas in the elastic support pad 24 enters the fixed cylinder 251 through the connecting pipe 241, pushing the piston ring 252 to compress the spring 254, and the damper 253 slows down the movement speed of the piston ring 252 through the damping effect, absorbs the vibration energy, and avoids erosion and wear at the contact point between the tube bank and the tube support.

[0043] When the boiler heats up or cools down, causing the pipe bank to expand and contract, the pipe bank drives the lower clamp 21 to slide synchronously along the guide rod 32. The elastic pad 33 of the telescopic compensation component 3 deforms as the lower clamp 21 moves, and the figure-eight fixing mechanism 2 can follow with a small movement. Throughout the process, the figure-eight fixing mechanism 2 always maintains a stable clamping of the pipe bank.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A boiler tube panel stay optimised reinforcement structure comprising a mounting plate (1) characterised in that: The mounting plate (1) is provided with an 8-shaped fixing mechanism (2) and a telescopic compensation component (3). The 8-shaped fixing mechanism (2) includes: The lower clamp (21) is slidably connected to the mounting plate (1), and the lower clamp (21) is fixedly connected to the upper clamp (22) by bolts (23); An elastic support pad (24) is disposed in the lower clamp (21) and the upper clamp (22); A protective component (25) is disposed on an upper clamp (22).

2. A boiler tube panel stay optimised reinforcement structure according to claim 1, characterised in that: The protective assembly (25) includes a fixed cylinder (251), a piston ring (252), a damper (253), and a compression spring (254). The fixed cylinder (251) is fixedly connected to the top of the upper clamp (22). The piston ring (252) is piston-connected in the fixed cylinder (251). The damper (253) is fixedly installed in the fixed cylinder (251) and is fixedly connected to the piston ring (252). The piston ring (252) is elastically connected to the inner wall of the fixed cylinder (251) through the compression spring (254).

3. A boiler tube panel stay optimised reinforcement structure according to claim 2, characterised in that: The elastic support pad (24) is filled with gas, and a connecting pipe (241) is connected to the elastic support pad (24). A connector (242) is fixedly connected to one end of the connecting pipe (241) away from the elastic support pad (24).

4. A boiler tube panel stay optimised reinforcement structure according to claim 3, characterised in that: The bottom of the fixed cylinder (251) is provided with a connection port, and the connection port is threadedly connected to the connector (242).

5. A boiler tube panel stay optimised reinforcement structure according to claim 3, characterised in that: The upper clamp (22) has a through hole, and the through hole matches the connecting pipe (241).

6. A boiler tube panel stay optimization bracing structure according to claim 1, wherein: An elastic reinforcing ring (243) is embedded in the inner surface of the elastic support pad (24).

7. The optimized and reinforced structure for boiler tube bank support according to claim 1, characterized in that: The telescopic compensation component (3) includes a fixing block (31), a guide rod (32) and an elastic pad (33). The fixing block (31) is fixedly connected to the mounting plate (1). The guide rod (32) is fixedly connected to the fixing block (31). The elastic pad (33) is sleeved on the guide rod (32). The lower clamp (21) has a round hole that matches the guide rod (32).

8. A boiler tube panel stay optimised reinforcement structure according to claim 7, characterised in that: A dovetail block (101) is fixedly connected to the outer wall of the mounting plate (1), and a dovetail groove (102) is provided on the outer wall of the mounting plate (1).

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