Tube clamp for securing a boiler low-temperature reheater anti-abrasion shield

Abstract

The utility model relates to a boiler anti-abrasion and explosion -proof technical field discloses a kind of pipe clamp of boiler low temperature reheater anti-abrasion shield fixed, including first pipe clamp frame, fixed plate, the fixed plate is fixedly connected in the top and bottom two sides outer wall of first pipe clamp frame, the right side outer wall of fixed plate is contacted with second pipe clamp frame, protection mechanism is provided on the fixed plate, auxiliary mechanism is provided on the protection mechanism, the protection mechanism includes first through-hole, the first through-hole is opened in the left side inner wall of fixed plate, the inner circle inner wall of first through-hole is contacted with support cylinder, the left side outer wall of support cylinder is fixedly connected with hexagon plate. In the utility model, complete annular clamping structure is formed by pipe clamp frame cooperation, can closely adhere pipeline circumference and anti-abrasion shield, realize full circumferential fixation, avoid local protection vacancy, can provide sustained pre-tightening force when pipeline thermal expansion and contraction or boiler operation vibration, prevent the clearance between pipe clamp and shield, pipeline.

Description

Technical Field

[0001] This utility model relates to the field of boiler wear and explosion prevention technology, and in particular to a pipe clamp for fixing the wear-resistant protective plate of a boiler low-temperature reheater. Background Technology

[0002] As the operating time of boilers in thermal power plants increases and the quality of coal used for combustion deteriorates, the wear and explosion prevention measures of boilers are significantly affected. This is particularly evident in the accelerated wear of the low-temperature reheater tube banks installed in the boiler's tail flue, requiring the installation of numerous wear-resistant plates to protect the tube banks from wear and prevent leaks caused by thinning of the tube walls.

[0003] When installing pipe clamps, wear-resistant protective plates, usually made of wear-resistant steel plates or ceramic-coated plates, are attached to the parts of the pipe that need protection. Then, when the pipe clamps are put on the outside of the protective plates or embedded in the pre-reserved slots of the protective plates and the bolts are tightened, the clamp body contracts under the force, generating a radial clamping force on the pipe and the protective plate. At the same time, the friction between the clamp body and the pipe and the protective plate further prevents the protective plate from sliding or falling off under the scouring of flue gas and the vibration of the boiler.

[0004] The existing wear-resistant plates installed on the tube banks of the boiler low-temperature reheater require welding and fixing with pipe clamps to achieve their protective function. However, the wear-resistant plates installed with the pipe clamps are prone to warping, rotating, or falling off due to pipe vibration or twisting. Therefore, a new type of pipe clamp for fixing the wear-resistant plates of the boiler low-temperature reheater is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a pipe clamp for fixing the wear-resistant protective plate of a boiler low-temperature reheater. It aims to improve the problem that the wear-resistant protective plate, after installation, is prone to warping, rotating, or falling off due to pipe vibration or twisting in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a pipe clamp for fixing the anti-wear protective plate of a boiler low-temperature reheater, comprising a first pipe clamp bracket and a fixing plate. The fixing plate is fixedly connected to the outer walls of the top and bottom sides of the first pipe clamp bracket. A second pipe clamp bracket is in contact with the right outer wall of the fixing plate. A protective mechanism is provided on the fixing plate, and an auxiliary mechanism is provided on the protective mechanism. The protective mechanism includes a first through hole, which is opened on the left inner wall of the fixing plate. A support cylinder is in contact with the inner wall of the inner ring of the first through hole. A hexagonal plate is fixedly connected to the left outer wall of the support cylinder. A compression spring is fixedly connected to the right outer wall of the hexagonal plate. A second through hole is opened on the right inner wall of the fixing plate. A threaded post is in contact with the inner wall of the inner ring of the second through hole. An adjusting plate is fixedly connected to the outer side wall of the threaded post. A pin is in contact with the left inner wall of the adjusting plate. A limit hole is opened on the right inner wall of the fixing plate.

[0007] As a further description of the above technical solution: the auxiliary mechanism includes a paddle, which is slidably connected to the inner right wall of the adjustment disc, and a telescopic spring is fixedly connected to the outer right wall of the paddle. A directional mark is provided on the outer right wall of the adjustment disc.

[0008] As a further description of the above technical solution: there are several fixing plates, and the several fixing plates are respectively fixedly connected to the outer side walls of the second pipe clamp and the first pipe clamp.

[0009] As a further description of the above technical solution: the end of the compression spring away from the hexagonal plate contacts the left outer wall of the fixed plate, and the threaded column is threadedly connected to the inner wall of the inner ring of the support cylinder.

[0010] As a further description of the above technical solution: a frosted sleeve is fixedly connected to the outer side wall of the adjustment disc, and the pin is engaged with the inner wall of the inner ring of the limiting hole.

[0011] As a further description of the above technical solution: the end of the telescopic spring away from the paddle is fixedly connected to the inner right wall of the adjustment disc, and the pin is fixedly connected to the outer left wall of the paddle.

[0012] As a further description of the above technical solution: a display coating is fixedly connected to the outer side wall of the directional mark.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, a complete annular clamping structure is formed by the cooperation of pipe clamps and brackets, which can tightly fit the outer circumference of the pipe and the anti-wear plate, achieving full circumferential fixation, avoiding local protection gaps, and providing continuous pre-tightening force when the pipe expands and contracts due to thermal expansion and contraction or when the boiler vibrates during operation, preventing gaps from forming between the pipe clamps and the anti-wear plate and the pipe, and reducing the risk of anti-wear plate displacement from the root. At the same time, the engagement of the pin and the limiting hole can accurately lock the position of the adjustment plate, preventing the threaded connection from loosening due to vibration, ensuring long-term stable clamping force, thereby ensuring that the anti-wear plate always plays a protective role, significantly reducing the probability of pipe being eroded and worn by flue gas and fly ash, and adapting to the complex operating conditions of the boiler.

[0015] 2. In this utility model, the user-friendly design of the auxiliary mechanism significantly improves the convenience of installation, disassembly, and adjustment, reduces the difficulty and cost of equipment maintenance, and provides a convenient grip for pin operation through the lever. Combined with the automatic reset function of the telescopic spring, the locking and separation of the pin and the limit hole can be completed quickly, simplifying the limit adjustment process. The frosted sleeve on the outer wall of the adjustment plate increases the operating friction and prevents slippage during adjustment, while the directional markings and display coating improve visibility in dim and dusty furnace environments, helping workers to quickly determine the direction of rotation and accurately control the advance and retreat of the threaded connection. This design makes the installation, clamping, disassembly, and separation of pipe clamps efficient and labor-saving, significantly shortening the working time for guard plate replacement and pipeline maintenance, reducing labor costs, and improving equipment maintenance efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic front view of the pipe clamp for fixing the wear-resistant protective plate of a boiler low-temperature reheater according to the present invention.

[0017] Figure 2 This is a side view of a pipe clamp for fixing the wear-resistant protective plate of a boiler low-temperature reheater according to the present invention.

[0018] Figure 3 This is a schematic diagram of an anti-loosening mechanism for a pipe clamp used to fix a wear-resistant protective plate in a boiler low-temperature reheater, as proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the auxiliary mechanism for fixing the wear-resistant protective plate of a boiler low-temperature reheater according to the present invention.

[0020] Legend:

[0021] 1. First pipe clamp bracket; 2. Fixing plate; 3. Second pipe clamp bracket; 4. Protective mechanism; 41. First through hole; 42. Support cylinder; 43. Hexagonal plate; 44. Compression spring; 45. Second through hole; 46. Threaded post; 47. Adjusting disc; 48. Pin; 49. Limiting hole; 5. Auxiliary mechanism; 51. Paddle; 52. Telescopic spring; 53. Pointing mark. Detailed Implementation

[0022] 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.

[0023] Reference Figures 1-3This utility model provides an embodiment of a pipe clamp for fixing an anti-wear guard plate in a boiler low-temperature reheater. The clamp includes a first pipe clamp bracket 1 and a fixing plate 2. The fixing plate 2 is fixedly connected to the outer walls of the top and bottom sides of the first pipe clamp bracket 1. The right outer wall of the fixing plate 2 contacts a second pipe clamp bracket 3. The second pipe clamp bracket 3 and the first pipe clamp bracket 1 cooperate to form a complete annular clamping structure, which can adapt to the outer circumferential contour of the pipe, ensuring full circumferential fixing of the anti-wear guard plate. A protective mechanism 4 is provided on the fixing plate 2, and an auxiliary mechanism 5 is provided on the protective mechanism 4. The protective mechanism 4 includes a first through hole 41, which is opened on the left inner wall of the fixing plate 2. The inner wall of the first through hole 41 contacts a support cylinder 42, and the left outer wall of the support cylinder 42 is fixed... A hexagonal plate 43 is fixedly connected to the fixed plate 2. A compression spring 44 is fixedly connected to the outer right side of the hexagonal plate 43. The compression spring 44 has elastic restoring capability and can provide continuous pre-tightening force when the pipe expands and contracts due to heat or vibrates, so as to avoid gaps between the pipe clamp and the protective plate and the pipe. A second through hole 45 is opened on the inner right side of the fixed plate 2. A threaded post 46 is contacted on the inner wall of the inner ring of the second through hole 45. An adjusting plate 47 is fixedly connected to the outer side of the threaded post 46. A pin 48 is contacted on the inner left side of the adjusting plate 47. The pin 48 is a key component for limiting the position of the adjusting plate 47. It can lock the position of the adjusting plate 47 by cooperating with the limiting hole 49 to prevent the threaded post 46 from loosening. A limiting hole 49 is opened on the inner right side of the fixed plate 2.

[0024] Reference Figures 2-4 There are several fixing plates 2, which are respectively fixedly connected to the outer side walls of the second pipe clamp 3 and the first pipe clamp 1. The layout of multiple fixing plates 2 can make the connection between the first pipe clamp 1 and the second pipe clamp 3 more balanced, and avoid local stress concentration leading to structural deformation. The end of the compression spring 44 away from the hexagonal plate 43 contacts the outer left side wall of the fixing plate 2. The threaded column 46 is threadedly connected to the inner wall of the inner ring of the support cylinder 42. A frosted sleeve is fixedly connected to the outer side wall of the adjusting plate 47. The frosted sleeve can increase the friction between the hand and the adjusting plate 47 and avoid slippage during adjustment. The pin 48 is engaged with the inner wall of the inner ring of the limiting hole 49.

[0025] Reference Figures 3-4 The auxiliary mechanism 5 includes a lever 51, which provides a convenient grip for operating the pin 48. By moving the lever 51, the extension and retraction of the pin 48 can be quickly controlled. The lever 51 is slidably connected to the inner right wall of the adjustment plate 47. A telescopic spring 52 is fixedly connected to the outer right wall of the lever 51. A directional mark 53 is provided on the outer right wall of the adjustment plate 47. The end of the telescopic spring 52 away from the lever 51 is fixedly connected to the inner right wall of the adjustment plate 47. The pin 48 is fixedly connected to the outer left wall of the lever 51. A display coating is fixedly connected to the outer side wall of the directional mark 53. The display coating can improve the visibility of the directional mark 53, so that even in a dimly lit boiler furnace or in an environment with a lot of dust, the staff can clearly observe it.

[0026] Working principle: The boiler pipes and protective grinding plate are clamped together by the first pipe clamp 1 and the second pipe clamp 3. Then the threaded column 46 is threadedly connected to the support cylinder 42. When thermal expansion and contraction or external vibration occurs, the compression spring 44 continuously pushes the first pipe clamp 1 and the second pipe clamp 3 closer to each other to avoid gaps that may cause loosening and falling off. At the same time, the pin 48 is inserted into the limiting hole 49 to rotate the adjusting plate 47 to prevent loosening between the threaded column 46 and the support cylinder 42. When disassembly is required, simply pull the lever 51 to disengage the pin 48 from the limiting hole 49, then observe the indicator mark 53 and rotate the adjusting plate 47 to separate the threaded column 46 from the support cylinder 42, so that the first pipe clamp 1 and the second pipe clamp 3 can be easily separated.

[0027] 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 pipe clamp for fixing the wear-resistant protective plate of a boiler low-temperature reheater, comprising a first pipe clamp bracket (1) and a fixing plate (2), characterized in that: The fixing plate (2) is fixedly connected to the outer walls of the top and bottom sides of the first pipe clamp (1). The right outer wall of the fixing plate (2) contacts the second pipe clamp (3). The fixing plate (2) is provided with a protective mechanism (4). The protective mechanism (4) is provided with an auxiliary mechanism (5). The protective mechanism (4) includes a first through hole (41), which is located on the left inner wall of the fixed plate (2). The inner wall of the first through hole (41) is in contact with a support cylinder (42). The left outer wall of the support cylinder (42) is fixedly connected to a hexagonal plate (43). The right outer wall of the hexagonal plate (43) is fixedly connected to a compression spring (44). The right inner wall of the fixed plate (2) has a second through hole (45), which is in contact with a threaded post (46). The side outer wall of the threaded post (46) is fixedly connected to an adjusting plate (47). The left inner wall of the adjusting plate (47) is in contact with a pin (48). The right inner wall of the fixed plate (2) has a limit hole (49).

2. The pipe clamp for fixing the wear-resistant protective plate of a boiler low-temperature reheater according to claim 1, characterized in that: The auxiliary mechanism (5) includes a paddle (51), which is slidably connected to the inner right side wall of the adjustment disk (47). A telescopic spring (52) is fixedly connected to the outer right side wall of the paddle (51), and a directional mark (53) is provided on the outer right side wall of the adjustment disk (47).

3. The pipe clamp for fixing the wear-resistant protective plate of a boiler low-temperature reheater according to claim 1, characterized in that: There are several fixing plates (2), and the several fixing plates (2) are respectively fixedly connected to the outer side wall of the second pipe clamp (3) and the first pipe clamp (1).

4. The pipe clamp for fixing the wear-resistant protective plate of a boiler low-temperature reheater according to claim 1, characterized in that: The end of the compression spring (44) away from the hexagonal plate (43) contacts the left outer wall of the fixed plate (2), and the threaded column (46) is threaded to the inner wall of the inner ring of the support cylinder (42).

5. The pipe clamp for fixing the wear-resistant protective plate of a boiler low-temperature reheater according to claim 1, characterized in that: The side outer wall of the adjustment disc (47) is fixedly connected to a frosted sleeve, and the pin (48) is engaged with the inner wall of the inner ring of the limiting hole (49).

6. The pipe clamp for fixing the wear-resistant protective plate of a boiler low-temperature reheater according to claim 2, characterized in that: The end of the telescopic spring (52) away from the lever (51) is fixedly connected to the right inner wall of the adjustment disc (47), and the pin (48) is fixedly connected to the left outer wall of the lever (51).

7. The pipe clamp for fixing the wear-resistant protective plate of a boiler low-temperature reheater according to claim 2, characterized in that: The outer side wall of the directional marker (53) is fixedly connected with a display coating.

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