Anti-abrasion device for water cooling wall of boiler of thermal power plant

Abstract

The utility model provides a thermal power plant boiler water cooling wall anti-abrasion device, and mainly relates to the field of boiler water cooling wall anti-abrasion equipment. A thermal power plant boiler water cooling wall anti-abrasion device comprises a U-shaped plate, threaded rods are installed at the four corners of the top face of the U-shaped plate, each threaded rod is provided with a connecting block in a sliding mode, the bottom face of each connecting block is connected with the U-shaped plate through a spring, and a protection plate is installed on the four threaded rods in a sliding mode. The two sides of the protection plate are in sliding contact fit with the U-shaped plate. Compared with the prior art, the protective plate has the advantages that the protective plate is simple in structure and convenient to use, the protective plate can be limited through sliding contact fit of the U-shaped plate and the protective plate, the protective plate can be quickly mounted and dismounted under the cooperation of the threaded rod, the connecting block and the limiting nut, the mounting and dismounting efficiency is improved, and the protective plate is convenient to use. The protection plate is convenient to maintain and replace, physical labor of operators is reduced, and convenience is brought to installation and use.

Description

Technical Field

[0001] This utility model mainly relates to the field of anti-wear equipment for boiler water-cooled walls, specifically an anti-wear device for boiler water-cooled walls in thermal power plants. Background Technology

[0002] Publication No. CN204943459U discloses an anti-wear and flow guiding device for water-cooled wall tubes in circulating fluidized bed boilers. The device includes multiple anti-wear plates, each a square plate with three grooves. The spacing between these grooves matches the diameter of the water-cooled wall tube and the fin distance between two tubes. A long, narrow support plate is positioned below the gap between adjacent grooves. The grooves of the anti-wear plates are fully welded to the water-cooled wall tubes, and the support plate is also fully welded to the fins of the water-cooled wall tubes. This invention, by installing anti-wear plates, allows particles to impact the plates during their ascent and descent, reducing their movement speed and significantly minimizing impact on the water-cooled wall tubes, thus maximizing their service life. It is suitable for widespread use.

[0003] Regarding the aforementioned technologies, the inventors believe that the following defects exist: after a period of use, the surface of the anti-wear plate will be damaged due to the wear of particles, at which point the anti-wear plate needs to be replaced; however, the anti-wear plate is installed on the water-cooled pipe wall by welding, so the replacement of the anti-wear plate is quite inconvenient, affecting the normal use of the circulating fluidized bed and causing inconvenience for replacement, maintenance and installation. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an anti-wear device for water-cooled walls of boilers in thermal power plants. This utility model has a simple structure and is easy to use. Through the sliding contact between the U-shaped plate and the protective plate, the protective plate can be limited. With the cooperation of the threaded rod, connecting block and limiting nut, the protective plate can be quickly installed and disassembled, improving the efficiency of installation and disassembly, facilitating the maintenance and replacement of the protective plate, reducing the physical labor of operators, and thus bringing convenience to installation and use.

[0005] To achieve the above objectives, this utility model employs the following technical solution:

[0006] A wear-resistant device for water-cooled walls of a thermal power plant boiler includes a U-shaped plate. Threaded rods are installed at each of the four corners of the top surface of the U-shaped plate. A connecting block is slidably mounted on each threaded rod. The bottom surface of each connecting block is connected to the U-shaped plate via a spring. Protective plates are slidably mounted on the four threaded rods. The sides of the protective plates are in sliding contact with the U-shaped plate, and the bottom surface of the protective plates is in contact with the connecting blocks. A fastening nut is threaded onto the upper part of each threaded rod.

[0007] Furthermore, a buffer plate is installed on the top surface of the protective plate.

[0008] Furthermore, elastic telescopic rods are installed on both sides of the top surface of the U-shaped plate, and a support block is installed at the top of each elastic telescopic rod. The top surface of each support block is in contact with the protective plate.

[0009] Furthermore, an anti-slip pad is installed on the bottom surface of the U-shaped plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This utility model has a simple structure and is easy to use. Through the sliding contact between the U-shaped plate and the protective plate, the protective plate can be limited. With the cooperation of the threaded rod, connecting block and limit nut, the installation and disassembly of the protective plate can be quickly realized, which improves the efficiency of installation and disassembly, facilitates the maintenance and replacement of the protective plate, reduces the physical labor of operators, and thus brings convenience to installation and use. Attached Figure Description

[0012] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] The following are the labels shown in the attached diagram: 1. U-shaped plate; 2. Threaded rod; 3. Connecting block; 4. Spring; 5. Protective plate; 6. Fastening nut; 7. Buffer plate; 8. Elastic telescopic rod; 9. Support block. Detailed Implementation

[0014] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0015] like Figure 1 As shown, the wear-resistant device for water-cooled walls of thermal power plant boilers according to this utility model includes a U-shaped plate 1. Threaded rods 2 are installed at the four corners of the top surface of the U-shaped plate 1. Each threaded rod 2 has a sliding connecting block 3. The bottom surface of each connecting block 3 is connected to the U-shaped plate 1 via a spring 4. Protective plates 5 are slidably installed on the four threaded rods 2. The two sides of the protective plates 5 are in sliding contact with the U-shaped plate 1, and the bottom surface of the protective plates 5 is in contact with the connecting blocks 3. A fastening nut 6 is threadedly installed on the upper part of each threaded rod 2.

[0016] Specifically, a buffer plate 7 is installed on the top surface of the protective plate 5.

[0017] Specifically, elastic telescopic rods 8 are installed on both sides of the top surface of the U-shaped plate 1, and a support block 9 is installed at the top of each elastic telescopic rod 8. The top surface of each support block 9 is in contact with the protective plate 5.

[0018] Specifically, an anti-slip pad is installed on the bottom surface of the U-shaped plate 1.

[0019] Example:

[0020] When using this device, first fix the U-shaped plate 1 on the water-cooled wall, and then install the protective plate 5 on the threaded rod 2 by tightening the nut 6. Under the elastic force of the spring 4 and the impact of the water flow in the boiler, the protective plate 5 moves along the threaded rod 2, which avoids the impact of the water flow on the water-cooled wall and thus protects the water-cooled wall. At the same time, with the cooperation of the tightening nut 6 and the threaded rod 2, the installation and removal of the protective plate 5 can be realized quickly, which is convenient for the replacement and maintenance of the protective plate 5.

[0021] This utility model has a simple structure and is easy to use. Through the sliding contact between the U-shaped plate and the protective plate, the protective plate can be limited. With the cooperation of the threaded rod, connecting block and limit nut, the installation and disassembly of the protective plate can be quickly realized, which improves the efficiency of installation and disassembly, facilitates the maintenance and replacement of the protective plate, reduces the physical labor of operators, and thus brings convenience to installation and use.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A wear-resistant device for water-cooled walls of a thermal power plant boiler, comprising a U-shaped plate (1), characterized in that: Threaded rods (2) are installed at the four corners of the top surface of the U-shaped plate (1). Each threaded rod (2) is slidably provided with a connecting block (3). The bottom surface of each connecting block (3) is connected to the U-shaped plate (1) by a spring (4). Protective plates (5) are slidably installed on the four threaded rods (2). The two sides of the protective plates (5) are in sliding contact with the U-shaped plate (1). The bottom surface of the protective plates (5) is in contact with the connecting blocks (3). A fastening nut (6) is threadedly installed on the upper part of each threaded rod (2).

2. The anti-wear device for water-cooled walls of thermal power plant boilers according to claim 1, characterized in that: A buffer plate (7) is installed on the top surface of the protective plate (5).

3. The wear-resistant device for water-cooled walls of a thermal power plant boiler according to claim 2, characterized in that: Elastic telescopic rods (8) are installed on both sides of the top surface of the U-shaped plate (1). Each elastic telescopic rod (8) has a support block (9) installed at the top. The top surface of each support block (9) is in contact with the protective plate (5).

4. The wear-resistant device for water-cooled walls of thermal power plant boilers according to claim 1, characterized in that: The bottom surface of the U-shaped plate (1) is fitted with an anti-slip pad.

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