Boiler superheater tube system anti-abrasion structure

Abstract

The utility model provides a kind of boiler superheater piping anti-abrasion structure, it is related to anti-abrasion structure technical field, including outlet pipe, fixed communication has fixed mouth on outlet pipe, further including adjustable anti-abrasion component, adjustable anti-abrasion component includes the anti-abrasion tile of sliding connection on outlet pipe, anti-abrasion tile is fixedly connected with spring, slidingly connected with fixed frame on outlet pipe, slidingly connected with built-in frame in fixed frame, built-in frame is slidingly connected with the block of pushing, fixedly connected with threaded block on block of pushing, fixedly connected with twist block on threaded block, block of pushing is connected with fixed frame, tile resets in the utility model in spring effect, density reduces, reduces thermal resistance to improve heat exchange efficiency, avoid energy efficiency bottleneck, this design improves the flexibility of structure to flue gas dust content, flow rate and other working condition changes, solves the limitation that fixed tile cannot dynamically adjust.

Description

Technical Field

[0001] This utility model relates to the field of anti-wear structure technology, and in particular to an anti-wear structure for boiler superheater tube systems. Background Technology

[0002] The anti-wear structure of the boiler superheater tube system is a protective device designed to reduce the scouring and wear of the superheater tubes by high-temperature dusty flue gas and ensure the safe operation of the tube system. Its core principle is to reduce the local scouring intensity of the flue gas on the tube wall by optimizing the structural layout and adding protective components. In some cases, wear-resistant ceramic coatings are sprayed on the tube wall surface or wear-resistant alloys are overlaid to enhance the wear resistance of the tube wall itself. These structures work together to significantly extend the service life of the superheater tube system and reduce the risk of leakage caused by wear. However, in existing technologies, wear-resistant protective tiles are usually wrapped around the pipes. The wear resistance requirement changes dynamically with the dust content and flow rate of the flue gas. However, fixed protective tiles lack the flexibility to be adjusted as needed. Although existing protective tiles can form physical protection, the structure of tightly fitting the pipe wall will introduce additional thermal resistance, resulting in a decrease in the heat exchange efficiency between the superheater and the flue gas. In this case, in scenarios where strong protection is not required, the protective tiles become the energy efficiency bottleneck, causing a reduction in steam heating energy efficiency, indirectly increasing fuel consumption costs, and increasing the overall load on the piping system. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a wear-resistant structure for boiler superheater tube systems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a wear-resistant structure for boiler superheater pipe system, comprising: an outlet pipe, wherein a fixed port is fixedly connected to the outlet pipe; An adjustable anti-wear component includes an anti-wear protective tile slidably connected to an air outlet pipe, a spring fixedly connected to the anti-wear protective tile, a fixed frame slidably connected to the air outlet pipe, an inner frame slidably connected inside the fixed frame, a lever slidably connected to the inner frame, a threaded block fixedly connected to the lever, a turning block fixedly connected to the threaded block, and the lever being connected to the fixed frame.

[0005] In a preferred embodiment, nylon ropes are fixedly connected to the wear-resistant protective tiles, and the nylon ropes are arranged in a ring array around the air outlet pipe, with nylon ropes fixedly connected between every two wear-resistant protective tiles.

[0006] The above technical solution is adopted: when in use, a nylon rope is provided to facilitate the connection of two anti-wear tiles. The nylon rope has a certain degree of flexibility, and the two overlapping anti-wear tiles cover the nylon rope.

[0007] In a preferred embodiment, the air outlet pipe is fixedly connected to the inner wall of the built-in frame. Two fixed frames are provided, and the two fixed frames are slidably connected to the air outlet pipes located at both ends of the built-in frame. A universal joint is fixedly connected to the lever block, and the end of the universal joint away from the lever block is fixedly connected to the fixed frame.

[0008] The above technical solution is adopted: during use, the air outlet pipe is fixedly connected to the inner wall of the built-in frame. The built-in frame is made of ceramic material to protect the air outlet pipe. The universal joint makes the connection between the two ends of the lever and the fixed frames at both ends more flexible.

[0009] In a preferred embodiment, a limiting ring is fixedly connected to the built-in frame, and the limiting ring is fixedly connected inside the air outlet pipe.

[0010] The above technical solution is adopted: during use, a limiting ring is fixedly connected to the built-in frame, and the limiting ring is fixed inside the air outlet pipe to fix the built-in frame and the air outlet pipe.

[0011] In a preferred embodiment, the fixed frames on both sides are slidably connected to the wear-resistant protective tiles.

[0012] The above technical solution is adopted: during use, the fixed frames on both sides are slidably connected to the anti-wear protective tile. The fixed frames can squeeze the anti-wear protective tile, thereby causing the anti-wear protective tile to squeeze the spring and contract inward.

[0013] In a preferred embodiment, the built-in frame has a through hole, the bottom of the threaded block is fixedly connected to a limiting plate, the through hole on the built-in frame has an inner hole adapted to the limiting plate, the limiting plate is slidably connected in the inner hole, and six sets of wear-resistant protective tiles are provided, of which the wear-resistant protective tiles near the fixing port and near the tail end of the air outlet pipe in three sets are fixed to the air outlet pipe.

[0014] The above technical solution is adopted as follows: When in use, a through hole is opened on the inner frame, and an inner hole is opened in the through hole to facilitate the sliding of the limiting plate. The threaded block is fixed to the limiting plate, and the limiting plate slides in it. This does not affect the rotation of the threaded block, but also limits the threaded block. With the inner frame as the dividing line, three sets of anti-wear protective tiles are set on the air outlet pipes on both sides. One set of anti-wear protective tiles close to the fixed frame at both ends slides with the air outlet pipe, and the other end is fixed.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This invention utilizes a structure consisting of threaded blocks, levers, and springs to dynamically adjust the density of the anti-wear protective tiles. When the flue gas volume is large (high wear requirements), the density of the protective tiles can be increased by twisting and adjusting, thus enhancing protection. When the flue gas volume is small (low wear requirements), the protective tiles are reset under the action of the springs, reducing the density and decreasing thermal resistance to improve heat exchange efficiency and avoid energy efficiency bottlenecks. This design improves the flexibility of the structure in response to changes in flue gas dust content, flow rate, and other operating conditions, and solves the limitation that fixed protective tiles cannot be dynamically adjusted. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an anti-wear structure for a boiler superheater tube system provided by this utility model.

[0017] Figure 2 A schematic diagram showing the position of the nylon rope in an anti-wear structure for a boiler superheater tube system provided by this utility model.

[0018] Figure 3 This utility model provides a schematic diagram of the fixed frame and the built-in frame in a disassembled state of an anti-wear structure for boiler superheater piping systems.

[0019] Figure 4 A schematic diagram of the spring position structure of an anti-wear structure for boiler superheater tubes provided by this utility model.

[0020] Figure 5 This utility model provides a schematic diagram of the position of the rotating block in an anti-wear structure for boiler superheater pipe systems.

[0021] Legend: 1. Air outlet pipe; 11. Fixing port; 2. Adjustable anti-wear component; 21. Nylon rope; 22. Spring; 23. Fixing frame; 24. Anti-wear protective plate; 25. Pulley; 26. Universal joint; 27. Tightening block; 28. Internal frame; 29. ​​Limit ring; 210. Threaded block; 3. Limiting plate; 31. Inner hole. 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] like Figure 1-5 As shown, this utility model provides a technical solution: a wear-resistant structure for boiler superheater pipe system, including: an outlet pipe 1, with a fixed port 11 fixedly connected to the outlet pipe 1; Adjustable anti-wear component 2 includes an anti-wear protective tile 24 slidably connected to the air outlet pipe 1, a spring 22 fixedly connected to the anti-wear protective tile 24, a fixed frame 23 slidably connected to the air outlet pipe 1, an inner frame 28 slidably connected inside the fixed frame 23, a lever 25 slidably connected to the inner frame 28, a threaded block 210 fixedly connected to the lever 25, a turning block 27 fixedly connected to the threaded block 210, and the lever 25 connected to the fixed frame 23.

[0024] When there is a large amount of smoke in the environment, the operator turns the rotating block 27 counterclockwise. This, through the transmission of the threaded block 210, drives the lever block 25. The lever block 25, with the flexible connection of the universal joint 26, transmits the thrust to the two side fixing frames 23, causing the fixing frames 23 to slide outwards along the exhaust pipe 1. The sliding fixing frames 23 directly squeeze out the anti-wear protective tiles 24 on the exhaust pipe 1, causing adjacent protective tiles to squeeze the springs 22 below them. During this transmission process, the density of the anti-wear protective tiles 24 increases, and simultaneously, the sliding fixing frames 23 cover the protective tiles. In the exposed area, the protection is enhanced. When the smoke is relatively small, the screw block 27 is turned clockwise, and the threaded block 210 drives the lever block 25 to reverse the transmission, causing the fixed frame 23 to retract inward. Since the protective tile near the fixed port 11 and the tail end of the exhaust pipe 1 is fixed to the exhaust pipe 1, under the action of the spring 22's return force, the protective tile retracts with the fixed frame 23 to achieve linkage reset, and the density becomes smaller to facilitate heat dissipation. This achieves controllable adjustment of the protective tile density, which not only ensures the protective strength under high wear, but also solves the heat dissipation and flexibility problems under low demand.

[0025] Nylon ropes 21 are fixedly connected to the wear-resistant protective tiles 24. The nylon ropes 21 are arranged in a ring array around the air outlet pipe 1, and nylon ropes 21 are fixedly connected between every two wear-resistant protective tiles 24. In use, the nylon ropes 21 make it easy to connect two wear-resistant protective tiles 24 in series. The nylon ropes 21 have a certain degree of flexibility, and the two overlapping wear-resistant protective tiles 24 cover the nylon ropes 21.

[0026] The air outlet pipe 1 is fixedly connected to the inner wall of the built-in frame 28. There are two fixed frames 23, which are slidably connected to the air outlet pipe 1 located at both ends of the built-in frame 28. A universal joint 26 is fixedly connected to the lever 25. The end of the universal joint 26 away from the lever 25 is fixedly connected to the fixed frame 23. In use, the air outlet pipe 1 is fixedly connected to the inner wall of the built-in frame 28. The built-in frame 28 is made of ceramic material to protect the air outlet pipe 1. The universal joint 26 makes the connection between the two ends of the lever 25 and the fixed frames 23 at both ends more flexible.

[0027] A limiting ring 29 is fixedly connected to the built-in frame 28. The limiting ring 29 is fixedly connected inside the air outlet pipe 1. In use, by setting the limiting ring 29 fixedly connected to the built-in frame 28 and fixing the limiting ring 29 inside the air outlet pipe 1, the built-in frame 28 and the air outlet pipe 1 are fixed together.

[0028] The two fixed frames 23 on both sides are slidably connected to the anti-wear protective tile 24. When in use, by setting the two fixed frames 23 on both sides to be slidably connected to the anti-wear protective tile 24, the fixed frames 23 can squeeze the anti-wear protective tile 24, thereby causing the anti-wear protective tile 24 to squeeze the spring 22 and contract inward.

[0029] The built-in frame 28 has a through hole, and the bottom of the threaded block 210 is fixedly connected to the limiting plate 3. The through hole on the built-in frame 28 has an inner hole 31 that matches the limiting plate 3. The limiting plate 3 is slidably connected in the inner hole 31. Among the three sets of anti-wear protective tiles 24, the anti-wear protective tiles 24 near the fixed port 11 and near the tail end of the air outlet pipe 1 are fixed to the air outlet pipe 1. In use, the through hole on the built-in frame 28 and the inner hole 31 in the through hole facilitate the sliding of the limiting plate 3 in it. The threaded block 210 is fixed to the limiting plate 3, and the limiting plate 3 slides in it. This does not affect the rotation of the threaded block 210, but also limits the threaded block 210. With the built-in frame 28 as the dividing line, three sets of anti-wear protective tiles 24 are provided on the air outlet pipes 1 on both sides. Among them, the set of anti-wear protective tiles 24 near the fixed frame 23 at both ends slides with the air outlet pipe 1, and the other end is fixed.

[0030] Working principle: like Figure 1-5 As shown, when there is a lot of smoke in the environment, the operator turns the turning block 27 (counterclockwise) so that the lever 25 pushes the fixing frames 23 on both sides outward. The fixing frames 23 slide onto the air outlet pipe 1 and squeeze the anti-wear protective tiles 24 on the air outlet pipe 1. This causes the anti-wear protective tiles 24 on the adjacent sides to squeeze the spring 22. The spring 22 is set at a lower position on the anti-wear protective tiles 24. During the squeezing process, the density of the three sets of anti-wear protective tiles 24 on the air outlet pipe 1 increases, thus protecting the air outlet pipe 1 in the covered area. The fixed frame 23 will slide onto the air outlet pipe 1 to protect the area exposed by the anti-wear protective tile 24; When the amount of smoke in the air is small, turning the rotating block 27 (clockwise) causes the rotating block 27 to drive the fixed frame 23 to retract inward. Since the wear-resistant protective tiles 24 near the fixed port 11 and near the tail end of the exhaust pipe 1 are fixed to the exhaust pipe 1, the wear-resistant protective tiles 24 can be driven to reset under the action of the spring 22. The density of the wear-resistant protective tiles 24 on the exhaust pipe 1 becomes smaller, which facilitates heat dissipation.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A boiler superheater tube system anti-wear structure, characterized by, include: An air outlet (1) is fixedly connected to a fixed port (11). Adjustable anti-wear component (2), the adjustable anti-wear component (2) includes an anti-wear protective tile (24) slidably connected to the air outlet pipe (1), a spring (22) fixedly connected to the anti-wear protective tile (24), a fixed frame (23) slidably connected to the air outlet pipe (1), an inner frame (28) slidably connected inside the fixed frame (23), a lever (25) slidably connected to the inner frame (28), a threaded block (210) fixedly connected to the lever (25), a turning block (27) fixedly connected to the threaded block (210), and the lever (25) connected to the fixed frame (23).

2. The anti-wear structure for boiler superheater tube systems according to claim 1, characterized in that: Nylon ropes (21) are fixedly connected to the wear-resistant protective tiles (24). The nylon ropes (21) are arranged in a ring array around the air outlet pipe (1), and nylon ropes (21) are fixedly connected between every two wear-resistant protective tiles (24).

3. The anti-wear structure for boiler superheater tube systems according to claim 1, characterized in that: The air outlet pipe (1) is fixedly connected to the inner wall of the built-in frame (28). There are two fixed frames (23). The two fixed frames (23) are slidably connected to the air outlet pipe (1) located at both ends of the built-in frame (28). A universal joint (26) is fixedly connected to the lever (25). The end of the universal joint (26) away from the lever (25) is fixedly connected to the fixed frame (23).

4. The anti-wear structure for boiler superheater tube systems according to claim 1, characterized in that: A limiting ring (29) is fixedly connected to the built-in frame (28), and the limiting ring (29) is fixedly connected inside the air outlet pipe (1).

5. The anti-wear structure for boiler superheater tube systems according to claim 1, characterized in that: The fixed frames (23) on both sides are slidably connected to the wear-resistant protective tiles (24).

6. The anti-wear structure for boiler superheater tube systems according to claim 1, characterized in that: The built-in frame (28) has a through hole, and the bottom of the threaded block (210) is fixedly connected to the limiting plate (3). The through hole on the built-in frame (28) has an inner hole (31) that matches the limiting plate (3). The limiting plate (3) is slidably connected in the inner hole (31). There are six sets of anti-wear protective tiles (24). Among them, the anti-wear protective tiles (24) near the fixed port (11) and near the tail end of the air outlet pipe (1) in three sets of anti-wear protective tiles (24) are fixed to the air outlet pipe (1).

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