A corrosion protection device for thermal power plant heating systems

Abstract

This utility model discloses an anti-corrosion device for a thermal power plant's heating system, including a pipeline. The device also includes a protective structure disposed outside the pipeline and an assembly structure disposed outside the protective structure. The protective structure protects the outer wall of the pipeline, preventing surface corrosion, while the assembly structure connects and assembles multiple protective structures. This utility model relates to the field of thermal power plant technology. This anti-corrosion device for a thermal power plant's heating system, through the cooperation of a first arc-shaped plate, a second arc-shaped plate, a plug, a through groove, bolts, and nuts, achieves protection of the pipeline's outer wall. It solves the problem that traditional pipelines are mostly directly exposed to the atmospheric environment of thermal power plants, where acidic gases combine with water vapor to form an acidic solution, causing the pipeline's outer wall to gradually corrode and thin, thus reducing the service life of pipelines in thermal power plant heating systems.

Description

Technical Field

[0001] This utility model relates to the field of thermal power plant technology, specifically to an anti-corrosion device for thermal power plant heating systems. Background Technology

[0002] A thermal power plant is a factory that uses combustible materials as fuel to produce electricity. When the fuel is burned, it heats water to generate steam. The steam pressure drives the steam turbine to rotate, and the steam turbine drives the generator to rotate, converting mechanical energy into electrical energy. In the thermal power plant's thermal system, the pipeline is a major component that undertakes the task of transporting high-temperature steam.

[0003] Traditional transmission pipelines are mostly directly exposed to the atmospheric environment of thermal power plants. Moreover, the sulfur dioxide and nitrogen oxides in the atmosphere of thermal power plants are acidic gases that combine with water vapor to form an acidic solution. This solution continuously adheres to the surface of the transmission pipelines, causing chemical corrosion. As a result, the outer wall of the pipeline gradually rusts and thins, thereby reducing the service life of the transmission pipelines in the thermal power plant's thermal system. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an anti-corrosion device for thermal power plant systems. It solves the problem that traditional transmission pipelines are mostly directly exposed to the atmospheric environment of thermal power plants. Acidic gases in the atmosphere combine with water vapor to form an acidic solution that continuously adheres to the surface of the transmission pipelines, causing the outer wall of the pipelines to gradually corrode and thin, thereby reducing the service life of transmission pipelines in thermal power plant systems.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a corrosion protection device for a thermal power plant's heating system, including a pipeline, the corrosion protection device for a thermal power plant's heating system also includes a protective structure, the protective structure being disposed outside the pipeline; an assembly structure being disposed outside the protective structure; wherein, the protective structure protects the outer wall of the pipeline to prevent the surface of the pipeline from being corroded, and the assembly structure splices and assembles multiple protective structures.

[0006] Preferably, the protective structure includes a first arc-shaped plate, which is attached to the upper part of the outer wall of the pipe; a second arc-shaped plate, which is attached to the lower part of the outer wall of the pipe; a first connecting lug fixed to the lower part of the outer wall of the first arc-shaped plate; a second connecting lug fixed to the upper part of the outer wall of the second arc-shaped plate; a through groove formed on the surface of the second connecting lug; an insert fixed to the bottom of the first connecting lug, with its outer wall penetrating the inner wall of the through groove; a bolt penetrating the insert; and a nut threadedly connected to the outer wall of the end of the bolt. Under the drive of the first and second arc-shaped plates, the first and second connecting lugs cause the insert to be inserted into the through groove, and finally, the first and second arc-shaped plates are fixed together by the cooperation of the bolt and nut.

[0007] Preferably, the assembly structure includes a first connecting piece, which is fixed to one side of the outer wall of the first arc-shaped plate; a second connecting piece is fixed to one side of the outer wall of the second arc-shaped plate; mounting holes are respectively opened on the outer walls of the first connecting piece and the second connecting piece; wherein, the two adjacent first arc-shaped plates and the second arc-shaped plate are spliced ​​and assembled through the first connecting piece and the second connecting piece.

[0008] Preferably, a rubber strip is fixed to the top of the second arc-shaped plate, and the outer wall of the rubber strip is attached to the bottom of the outer wall of the first arc-shaped plate.

[0009] Preferably, sealing rings are fixedly connected to the side walls of the first and second arc-shaped plates.

[0010] Preferably, rubber pads are fixed to the inner walls of the first arc plate and the second arc plate respectively, and the outer wall of the rubber pads is attached to the outer wall of the pipe. Beneficial effects

[0011] This utility model provides an anti-corrosion device for thermal power plant systems. It offers the following advantages: This anti-corrosion device for thermal power plant systems, through the cooperation of a first arc-shaped plate, a second arc-shaped plate, a first connecting ear, a second connecting ear, a plug, a through groove, bolts, and nuts, protects the outer wall of the pipeline, preventing corrosion. It solves the problem that traditional pipelines are mostly directly exposed to the atmospheric environment of thermal power plants, where acidic gases combine with water vapor to form an acidic solution that continuously adheres to the pipeline surface, causing the outer wall to gradually rust and thin, thus reducing the service life of pipelines in thermal power plant systems.

[0012] By using the first connecting piece, the second connecting piece, and the mounting hole, the two adjacent first arc plates and second arc plates can be assembled. This solves the problem that when a certain part of the pipeline is damaged, the workers need to disassemble the first arc plate and the second arc plate as a whole, while the undamaged part of the pipeline will be exposed to the air. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 Exploded view;

[0015] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0016] Figure 4 for Figure 2 Enlarged view of section B in the middle.

[0017] In the diagram: 1. Pipe; 2. Protective structure; 21. First arc plate; 22. Second arc plate; 23. First connecting ear; 24. Second connecting ear; 25. Insert block; 26. Through groove; 27. Bolt; 28. Nut; 3. Assembly structure; 31. First connecting piece; 32. Second connecting piece; 33. Mounting hole; 4. Rubber strip; 5. Sealing ring; 6. Rubber gasket. Detailed Implementation

[0018] 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.

[0019] Traditional transmission pipelines are mostly directly exposed to the atmospheric environment of thermal power plants. Acidic gases in the atmosphere combine with water vapor to form acidic solutions that continuously adhere to the surface of the transmission pipelines. The outer wall of the pipeline gradually corrodes and thins, thereby reducing the service life of the transmission pipelines in the thermal power plant's thermal system.

[0020] In view of this, the present invention provides an anti-corrosion device for thermal power plant systems. Through the cooperation of a first arc plate, a second arc plate, a first connecting ear, a second connecting ear, a plug, a through groove, bolts, and nuts, the device protects the outer wall of the pipeline, preventing corrosion of the pipeline surface. This solves the problem that traditional transmission pipelines are mostly directly exposed to the atmospheric environment of thermal power plants. Acidic gases in the atmosphere combine with water vapor to form an acidic solution that continuously adheres to the surface of the transmission pipeline, causing the outer wall of the pipeline to gradually rust and thin, thereby reducing the service life of the transmission pipelines in the thermal power plant system.

[0021] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0022] Example 1: By Figure 1-4 It is known that an anti-corrosion device for a thermal power plant's heating system includes a pipe 1. The anti-corrosion device for a thermal power plant's heating system also includes a protective structure 2 and an assembly structure 3. The protective structure 2 is disposed outside the pipe 1; the assembly structure 3 is disposed outside the protective structure 2. The protective structure 2 protects the outer wall of the pipe 1 to prevent the surface of the pipe 1 from being corroded, and the assembly structure 3 splices and assembles multiple protective structures 2.

[0023] In the specific implementation process, it is worth noting that the pipeline 1 is used to transport high-temperature steam. The pipeline 1 is usually made of high-pressure and high-temperature resistant steel, such as 20G12Cr1MoV. These steels have good mechanical properties and heat resistance, and can withstand the high-temperature and high-pressure environment in the thermal power plant's thermal system. The outer wall of the pipeline 1 is protected by the protective structure 2 to prevent the surface of the pipeline 1 from being corroded. Multiple protective structures 2 are spliced ​​and assembled by the assembly structure 3.

[0024] Example 2: From Figure 1-4 It is known that the protective structure 2 includes a first arc-shaped plate 21, a second arc-shaped plate 22, a first connecting ear 23, a second connecting ear 24, a plug 25, a through groove 26, a bolt 27, and a nut 28. The first arc-shaped plate 21 is attached to the upper part of the outer wall of the pipe 1; the second arc-shaped plate 22 is attached to the lower part of the outer wall of the pipe 1; the first connecting ear 23 is fixed to the lower part of the outer wall of the first arc-shaped plate 21; the second connecting ear 24 is fixed to the upper part of the outer wall of the second arc-shaped plate 22; and the through groove 26 is formed in the second connecting ear. 24 surface; insert 25 fixed to the bottom of first connecting ear 23, and its outer wall penetrates the inner wall of through groove 26; bolt 27 penetrates insert 25; nut 28 threadedly connected to the outer wall of bolt 27 end; wherein, the first connecting ear 23 and the second connecting ear 24, driven by the first arc plate 21 and the second arc plate 22, cause insert 25 to be inserted into through groove 26, and finally, the first arc plate 21 and the second arc plate 22 are fixed together by the cooperation of bolt 27 and nut 28;

[0025] In the specific implementation process, it is worth noting that the first arc plate 21, the second arc plate 22, the first connecting ear 23, the second connecting ear 24 and the insert block 25 can be made of corrosion-resistant metal materials, such as stainless steel (304, 316, etc.) or alloy materials. These materials have excellent corrosion resistance and can be used for a long time in the harsh environment of thermal power plants. The bolts 27 and nuts 28 are usually made of high-strength stainless steel bolts and stainless steel nuts, such as 304 stainless steel or 316 stainless steel. These materials have good strength and corrosion resistance and can ensure the reliability of the connection.

[0026] When performing corrosion protection on pipe 1, the workers first move the first arc-shaped plate 21 and the second arc-shaped plate 22 in sequence, fitting them onto pipe 1. Simultaneously, the first arc-shaped plate 21 and the second arc-shaped plate 22 move the first connecting lug 23 and the second connecting lug 24. The first connecting lug 23 moves the insert block 25 into the through groove 26. Then, the workers pass the bolt 27 through the multiple insert blocks 25. Finally, the workers rotate the nut 28, rotating it onto the bolt 27, thus aligning the first arc-shaped plate 21 and the second arc-shaped plate 24. 2. Fixed to pipe 1, the first arc plate 21 and the second arc plate 22 cover the outer wall of pipe 1, forming a physical barrier to prevent corrosive media such as acidic gases and dust in the atmosphere from contacting the surface of pipe 1. When it is necessary to disassemble the first arc plate 21 and the second arc plate 22, the worker unscrews the nut 28 from the bolt 27 to release the fixation of the first arc plate 21 and the second arc plate 22, and removes them from pipe 1, thus protecting the outer wall of pipe 1 and preventing the surface of pipe 1 from being corroded.

[0027] Furthermore, the assembly structure 3 includes a first connecting piece 31, a second connecting piece 32, and mounting holes 33. The first connecting piece 31 is fixed to one side of the outer wall of the first arc-shaped plate 21; the second connecting piece 32 is fixed to one side of the outer wall of the second arc-shaped plate 22; and mounting holes 33 are respectively opened on the outer walls of the first connecting piece 31 and the second connecting piece 32. The first connecting piece 31 and the second connecting piece 32 are used to splice and assemble two adjacent first arc-shaped plates 21 and second arc-shaped plates 22.

[0028] In the specific implementation process, it is worth noting that the materials of the first connecting piece 31 and the second connecting piece 32 are the same as those of the first arc plate 21. The mounting hole 33 is circular and can be a threaded hole. When assembling the protective structure 2, the workers make the first connecting pieces 31 and the second connecting pieces 32 on the two adjacent first arc plates 21 and the second arc plate 22 contact each other. After that, the workers fix the two adjacent first arc plates 21 and the second arc plate 22 together through the mounting holes 33 on the first connecting pieces 31 and the second connecting pieces 32, so as to realize the assembly of the two adjacent first arc plates 21 and the second arc plate 22.

[0029] Furthermore, a rubber strip 4 is fixed to the top of the second arc-shaped plate 22, and the outer wall of the rubber strip 4 is attached to the bottom of the outer wall of the first arc-shaped plate 21.

[0030] In the specific implementation process, it is worth noting that the material of the rubber strip 4 can be EPDM rubber. The rubber strip 4 increases the sealing effect between the first arc plate 21 and the second arc plate 22, preventing external corrosive media from entering the outer wall of the pipe 1 through the gap between the two.

[0031] Furthermore, sealing rings 5 ​​are fixedly connected to the side walls of the first arc plate 21 and the second arc plate 22;

[0032] In the specific implementation process, it is worth noting that the sealing ring 5 is made of hydrogenated nitrile rubber, and the sealing ring 5 increases the sealing between two adjacent first arc plate 21 or second arc plate 22.

[0033] Furthermore, rubber pads 6 are fixed to the inner walls of the first arc plate 21 and the second arc plate 22 respectively, and the outer wall of the rubber pads 6 is attached to the outer wall of the pipe 1.

[0034] In the specific implementation process, it is worth noting that the rubber pad 6 is made of neoprene rubber, and the rubber pad 6 improves the sealing between the first arc plate 21 and the second arc plate 22 and the pipe 1.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corrosion protection device for a thermal power plant's heating system, comprising a pipeline (1), characterized in that: The corrosion protection device for the thermal power plant's heating system also includes: A protective structure (2) is provided outside the pipe (1); The assembly structure (3) is located outside the protective structure (2); The outer wall of the pipe (1) is protected by the protective structure (2) to prevent the surface of the pipe (1) from being corroded, and multiple protective structures (2) are spliced ​​and assembled by the assembly structure (3).

2. The anticorrosion device for thermal system of thermal power plant according to claim 1, characterized in that: The protective structure (2) includes: The first arc-shaped plate (21) is attached to the upper part of the outer wall of the pipe (1); The second arc-shaped plate (22) is attached to the lower part of the outer wall of the pipe (1); The first connecting ear (23) is fixed to the lower part of the outer wall of the first arc-shaped plate (21); The second connecting ear (24) is fixed to the upper part of the outer wall of the second arc-shaped plate (22); A through groove (26) is formed on the surface of the second connecting ear (24); The insert (25) is fixed to the bottom of the first connecting ear (23), and its outer wall penetrates the inner wall of the through groove (26); Bolt (27) passes through the insert (25); Nut (28) is threaded onto the outer wall of the end of the bolt (27); Driven by the first arc plate (21) and the second arc plate (22), the first connecting ear (23) and the second connecting ear (24) cause the insert (25) to be inserted into the through slot (26), and finally the first arc plate (21) and the second arc plate (22) are fixed together by the cooperation of the bolt (27) and the nut (28).

3. The anticorrosion device for thermal system of thermal power plant according to claim 2, characterized in that: The assembly structure (3) includes: The first connecting piece (31) is fixed to one side of the outer wall of the first arc-shaped plate (21); The second connecting piece (32) is fixed to one side of the outer wall of the second arc-shaped plate (22); Mounting holes (33) are respectively opened on the outer wall of the first connecting piece (31) and the outer wall of the second connecting piece (32); The first arc plate (21) and the second arc plate (22) are spliced ​​and assembled by the first connecting piece (31) and the second connecting piece (32).

4. The anticorrosion device for thermal system of thermal power plant according to claim 2, characterized in that: A rubber strip (4) is fixed to the top of the second arc plate (22), and the outer wall of the rubber strip (4) is attached to the bottom of the outer wall of the first arc plate (21).

5. The anticorrosion device for thermal system of thermal power plant according to claim 2, characterized in that: The side walls of the first arc plate (21) and the second arc plate (22) are fixedly connected with sealing rings (5).

6. The anticorrosion device for thermal system of thermal power plant according to claim 2, characterized in that: Rubber pads (6) are fixed to the inner walls of the first arc plate (21) and the second arc plate (22), respectively, and the outer wall of the rubber pads (6) is attached to the outer wall of the pipe (1).

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