A corrosion protection device for a heat supply pipeline

Abstract

The utility model relates to the technical field of heat supply pipeline, concretely is a kind of anticorrosive device for heat supply conveying pipeline, including anticorrosive mechanism, the middle part of anticorrosive mechanism is equipped with heat supply pipeline, the anticorrosive mechanism includes upper protection plate and lower protection plate, clamping between the upper protection plate and lower protection plate, the both sides of upper protection plate are uniformly equipped with the fixed mounting of upper locating plate, the middle part of upper locating plate evenly slides and is clamped with multiple inserting rods. The utility model is when using, can elastically adapt pipeline thermal deformation, prolongs the service life of device. Device does not adopt rigid fixation, and inserting rod can slide up and down in movable groove, can generate relative displacement with heat supply pipeline thermal expansion and cold shrink, avoid protection plate to become stress carrier and lead to self or connecting part damage, pipeline cooling shrinks, and protection plate can be automatically reset under the action of gravity, always keep the stable protection to pipeline, solved the problem that traditional rigid fixation device is easily damaged by pipeline deformation.

Description

Technical Field

[0001] This utility model relates to the field of heating pipeline technology, specifically to an anti-corrosion device for heating transmission pipelines. Background Technology

[0002] Heating pipelines are a type of pipeline system specifically designed to transport hot water or steam, delivering heat energy from heat sources such as power plants and boiler rooms to end users such as residential buildings and factories. When winter comes, temperatures are often low, making it difficult for people to work normally. Heating is usually provided to classrooms, office buildings, and residential buildings to mitigate the effects of the cold winter and allow people to work better.

[0003] Traditional pipeline corrosion protection devices mostly use rigid fixing methods such as bolts. When the pipeline expands and contracts with temperature, the protective plate can easily become a carrier of stress, leading to damage to itself and the connection parts. When it is damaged, its protective effect on the heating pipeline will be greatly reduced, resulting in pipeline corrosion problems being quite common. Frequent inspections, repairs and replacements are required, which has certain shortcomings. Utility Model Content

[0004] The purpose of this invention is to provide an anti-corrosion device for heating pipelines to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A corrosion protection device for a heat supply pipeline includes a corrosion protection mechanism with a heat supply pipeline located in the middle. The corrosion protection mechanism includes an upper protective plate and a lower protective plate, which are interlocked. Upper positioning plates are fixedly installed on both sides of the upper protective plate. Multiple insertion rods are evenly slidably interlocked in the middle of the upper positioning plate. Anti-detachment rings are fixedly installed in the middle of each of the insertion rods. A connecting rod is fixedly installed at the upper end of each group of insertion rods located on one side. Lower positioning plates are fixedly installed on both sides of the lower protective plate. Multiple locking blocks are fixedly installed in the middle of the lower positioning plate. Movable grooves are formed on both sides of the middle of each locking block, and baffles are fixedly installed at the upper and lower ends of the movable grooves.

[0007] In some embodiments, both the upper and lower protective plates are fixedly connected with a filling layer, and the heating pipe is located in the middle of the upper and lower protective plates.

[0008] In some embodiments, the inner wall of the heating pipe is coated with an inner anti-corrosion coating, and the outer wall of the heating pipe is coated with an outer anti-corrosion coating.

[0009] In some embodiments, the upper positioning plate and the lower positioning plate are connected by the cooperation of a plug rod and a locking block, and the upper and lower positioning plates at both ends of the upper and lower protective plates face the same direction.

[0010] In some embodiments, anti-detachment grooves are provided on both sides of the middle of one end of the card block. The anti-detachment grooves are connected to the movable grooves. Notches are provided on both sides of the middle of the plurality of anti-detachment grooves. The spacing between the notches is greater than the spacing between the movable grooves. The spacing between the movable grooves is slightly greater than the diameter of the anti-detachment ring. The diameter of the anti-detachment ring is greater than the spacing of the anti-detachment grooves where no notches are provided. The spacing between the notches is greater than the diameter of the anti-detachment ring. The anti-detachment ring is slidably engaged in the middle of the notch. The insertion rod and the anti-detachment ring are respectively located in the middle of the corresponding movable groove.

[0011] In some embodiments, screw holes are provided on both sides of the corresponding locking block of the lower positioning plate, and a limit plate is connected to the middle of the screw hole by a thread, and the anti-detachment ring abuts against the baffle.

[0012] This utility model has at least the following beneficial effects:

[0013] 1. This utility model can flexibly adapt to the thermal deformation of the pipeline during use, extending the service life of the device. The device does not use rigid fixing; the insertion rod can slide up and down within the movable groove, allowing relative displacement with the thermal expansion and contraction of the heating pipeline. This prevents the protective plate from becoming a stress carrier, causing damage to itself or its connection points. After the pipeline cools and contracts, the protective plate can automatically reset under gravity, maintaining stable protection for the pipeline at all times. This solves the problem of traditional rigid fixing devices being easily damaged by pipeline deformation.

[0014] 2. This utility model is convenient and efficient to assemble and disassemble, significantly reducing construction and maintenance costs. For disassembly, simply remove the limiting plate first, then pull the insert rod synchronously via the connecting rod to align the anti-detachment ring with the notch, and then move the protective plate laterally to separate them. There is no need to disassemble each bolt individually. For installation, align the insert rod with the notch on the locking block from the side and insert it, then tighten the limiting plate to complete the process. Furthermore, operation on one side can simultaneously drive the other side, allowing for quick completion by a single person, significantly shortening construction and maintenance time. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the first appearance structure of the present utility model;

[0016] Figure 2 This is a schematic diagram of the second appearance structure of the present utility model;

[0017] Figure 3 This is a schematic diagram of the disassembled structure of the anti-corrosion mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram showing the connection relationship between the insertion rod and the locking block of this utility model;

[0019] Figure 5 This is a schematic diagram showing the positional relationship between the insertion rod and the locking block of this utility model.

[0020] In the diagram: 1. Anti-corrosion mechanism; 11. Upper protective plate; 12. Lower protective plate; 13. Upper positioning plate; 14. Lower positioning plate; 15. Insert rod; 16. Anti-detachment ring; 17. Connecting rod; 18. Screw hole; 19. Limiting plate; 2. Anti-detachment groove; 20. Locking block; 21. Movable groove; 22. Notch; 23. Baffle; 24. Filling layer; 25. Heating pipe; 26. External anti-corrosion coating; 27. Internal anti-corrosion coating. Detailed Implementation

[0021] 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.

[0022] Example 1: Please refer to Figure 1 - Figure 5This utility model provides a technical solution: an anti-corrosion device for a heating pipeline, including an anti-corrosion mechanism 1. A heating pipeline 25 is located in the middle of the anti-corrosion mechanism 1. The anti-corrosion mechanism 1 includes an upper protective plate 11 and a lower protective plate 12, which are interlocked. Upper positioning plates 13 are fixedly installed on both sides of the upper protective plate 11. Multiple insertion rods 15 are evenly slidably interlocked in the middle of the upper positioning plate 13. Anti-detachment rings 16 are fixedly installed in the middle of each of the multiple insertion rods 15. Connecting rods 17 are fixedly installed at the upper ends of each group of insertion rods 15 located on one side. Lower positioning plates 14 are fixedly installed on both sides of the lower protective plate 12. Multiple locking blocks 20 are fixedly installed in the middle of the lower positioning plate 14. Movable grooves 21 are opened on both sides of the middle of each of the multiple locking blocks 20. Baffles 23 are fixedly installed at the upper and lower ends of the movable grooves 21. The upper positioning plate 13 and the lower positioning plate 14 are connected by insertion rods. The connection is achieved by the cooperation of 15 and the locking block 20. The upper positioning plate 13 and the lower positioning plate 14 at both ends of the upper protective plate 11 and the lower protective plate 12 are oriented in the same direction. Anti-detachment grooves 2 are provided on both sides of the middle of one end of the locking block 20. The anti-detachment grooves 2 and the movable grooves 21 are connected. Notches 22 are provided on both sides of the middle of the multiple anti-detachment grooves 2. The spacing of the notches 22 is greater than the spacing of the movable grooves 21. The spacing of the movable grooves 21 is slightly greater than the diameter of the anti-detachment ring 16. The diameter of the anti-detachment ring 16 is greater than the spacing of the anti-detachment grooves 2 where there are no notches 22. The spacing of the notches 22 is greater than the diameter of the anti-detachment ring 16. The anti-detachment ring 16 is slidably locked in the middle of the notch 22. The insertion rod 15 and the anti-detachment ring 16 are respectively located in the middle of the corresponding movable grooves 21. The lower positioning plate 14 has screw holes 18 on both sides of the corresponding locking block 20. The middle of the screw holes 18 is connected to the limit plate 19 by threads. The anti-detachment ring 16 abuts against the baffle 23.

[0023] In this embodiment, during disassembly, firstly, remove the multiple limiting plates 19 used to limit the position of the insertion rod 15, and then simultaneously pull the two connecting rods 17 to move the corresponding multiple insertion rods 15 upwards. During the process, when the anti-detachment ring 16 in the middle of the insertion rod 15 moves to the notch 22 of the locking block 20, the upper protective plate 11 can be moved towards the notch 22 until the anti-detachment ring 16 comes out of the notch 22. At this point, the separation of the upper protective plate 11 and the lower protective plate 12 can be completed. When installation is required, simply place the upper protective plate 11 on the side so that the anti-detachment ring 16 of the insertion rod 15 is accurately aligned with the locking block 20, and then move the upper protective plate 11 towards the inside of the locking block 20 so that the insertion rod 15 is located in the middle of the movable groove 21. Then, screw the limiting plates 19 used to limit the insertion rod 15 into the screw holes 18. Since the insertion rods 15 at both ends of the upper protective plate 11 and the corresponding connecting structures face the same direction, the insertion rods 15 on one side are installed. The disassembly and reassembly operations can be performed simultaneously on the other side, making it highly practical. After installation, since the anti-detachment ring 16 can only be dislodged from the notch 22, the insertion rod 15 can only slide up and down in the movable groove 21 in the middle of the anti-detachment groove 29 under the obstruction of the limiting plate 19. During the process, the baffles 23 at the upper and lower ends will also block the anti-detachment ring 16 to prevent the insertion rod 15 from coming out. This connection method means that the upper protective plate 11 and the lower protective plate 12 are not completely fixedly connected, but can be relatively displaced in the movable groove 21 as the internal heating pipe 25 expands during heating. This effectively avoids the phenomenon that the upper protective plate 11 and the lower protective plate 12, which are rigidly fixed by multiple sets of bolts in the traditional way, will become the carrier of stress transmission when the pipe displacement is restricted, resulting in damage to themselves and the connection parts. It can greatly extend the service life. After expansion, the upper protective plate 11 and the lower protective plate 12 will return to their original position due to gravity, which has extremely high practicality.

[0024] Example 2: Figure 1 - Figure 3 As shown, the upper protective plate 11 and the lower protective plate 12 are both fixedly connected with a filling layer 24. The heating pipe 25 is located in the middle of the upper protective plate 11 and the lower protective plate 12. The inner wall of the heating pipe 25 is sprayed with an inner anti-corrosion coating 27, and the outer wall of the heating pipe 25 is sprayed with an outer anti-corrosion coating 26.

[0025] In this embodiment, the coating protection of the pipeline itself can reduce the corrosion of the pipeline by internal and external media from the source. The inner anti-corrosion coating 27 on the inner wall of the heating pipeline 25 can directly isolate the internal heating media such as hot water and steam from contact with the pipeline body, avoiding the scouring and corrosion of the inner wall of the pipeline by oxygen and impurities in the media. In particular, it can reduce the adhesion of scale and ensure the smooth flow of the heating media. The filling layer 24 inside the upper protective plate 11 and the lower protective plate 12 can buffer the external impact force such as soil compression and construction collision, avoid the direct action of external force on the pipeline, and prevent the outer anti-corrosion coating 26 on the outer wall of the pipeline from being cracked or peeled off. During operation, the heating pipeline 25 will expand and contract due to temperature changes. The filling layer 24 has a certain elasticity and can conform to the deformation trend of the pipeline, avoiding gaps between the protective plate and the pipeline, and preventing damage to the anti-corrosion coating caused by hard friction between the pipeline and the protective plate.

[0026] Working principle:

[0027] like Figure 1 - Figure 5 As shown, during installation, place the upper protective plate 11 on the side of the lower protective plate 12, aligning the anti-detachment ring 16 on the insert rod 15 with the notch 22 of the locking block 20, ensuring that the insert rod 15 corresponds to the movable groove 21 of the locking block 20. Push the upper protective plate 11 towards the locking block 20, causing the insert rod 15 to enter the movable groove 21. The anti-detachment ring 16 then slides into the anti-detachment groove 2, at which point the insert rod 15 is restricted within the movable groove 21, completing the initial connection. Subsequently, screw the limiting plate 19 into the screw holes 18 on both sides of the locking block 20, abutting the insert rod 15 from the side to prevent lateral displacement of the insert rod 15, while not affecting the up-and-down sliding of the insert rod 15 within the movable groove 21, completing the overall installation. During disassembly, first unscrew the limiting plates 19 inside the screw holes 18 on both sides of the locking block 20 to release the lateral limitation on the insertion rod 15, allowing the insertion rod 15 to move. By pulling the connecting rod 17 upward, multiple insertion rods 15 on the same side move upward synchronously, and the anti-detachment ring 16 in the middle of the insertion rod 15 moves upward accordingly until it is aligned with the notch 22 on the locking block 20. Move the upper protective plate 11 laterally towards the notch 22 so that the anti-detachment ring 16 comes out from the notch 22. At this time, the insertion rod 15 is completely separated from the locking block 20, and the upper protective plate 11 can be removed from the lower protective plate 12 to complete the disassembly.

[0028] The upper and lower protective plates 12 are connected to the movable groove 21 via the insert rod 15, without rigid fixation. When the heating pipe 25 expands and contracts due to high temperature, the pipe will cause slight displacement of the external protective components. The insert rod 15 can slide up and down in the movable groove 21, and the anti-detachment ring 16 abuts against the baffle 23 to prevent the insert rod 15 from coming out. This movable connection method can release the thermal stress generated by pipe deformation and effectively avoid the protective plate becoming a stress transmission carrier when rigidly fixed with bolts, which may cause cracking or damage to itself or the connection part. When the pipe cools down and contracts, the upper and lower protective plates 12 return to their original positions with the pipe under the action of gravity, and the insert rod 15 returns to the initial position of the movable groove 21, restoring a stable protective state.

[0029] The inner anti-corrosion coating 27 sprayed on the inner wall of the heating pipe 25 directly isolates the internal media such as hot water and steam from contact with the pipe body, preventing oxygen and impurities in the media from eroding and corroding the inner wall of the pipe. It also reduces scale buildup and ensures smooth media flow. The outer anti-corrosion coating 26 on the outer wall of the pipe forms a double physical isolation with the upper and lower protective plates 12. Even if there are slight gaps in the protective plates, the outer anti-corrosion coating 26 can still prevent external corrosive media such as soil and rainwater from contacting the outer wall of the pipe, reducing the risk of external wall corrosion. The filling layer 24 inside the upper protective plate 11 and lower protective plate 12 is elastic and cushioning, absorbing external impacts such as soil compression and construction collisions, preventing external forces from directly acting on the pipe and preventing the outer anti-corrosion coating 26 on the outer wall of the pipe from being cracked or peeled off.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] 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 variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A corrosion protection device for a heat supply pipeline, comprising a corrosion protection mechanism (1), wherein a heat supply pipeline (25) is disposed in the middle of the corrosion protection mechanism (1), characterized in that: The anti-corrosion mechanism (1) includes an upper protective plate (11) and a lower protective plate (12). The upper protective plate (11) and the lower protective plate (12) are interlocked. An upper positioning plate (13) is fixedly installed on both sides of the upper protective plate (11). Multiple insert rods (15) are evenly slidably interlocked in the middle of the upper positioning plate (13). Anti-detachment rings (16) are fixedly installed in the middle of the multiple insert rods (15). A connecting rod (17) is fixedly installed at the upper end of each set of multiple insert rods (15) located on one side. A lower positioning plate (14) is fixedly installed on both sides of the lower protective plate (12). Multiple locking blocks (20) are fixedly installed in the middle of the lower positioning plate (14). Movable grooves (21) are opened on both sides of the middle of the multiple locking blocks (20). Baffles (23) are fixedly installed at the upper and lower ends of the movable grooves (21).

2. The anti-corrosion device for a heat supply pipeline according to claim 1, characterized in that: The upper protective plate (11) and the lower protective plate (12) are both fixedly connected with a filling layer (24), and the heating pipe (25) is located in the middle of the upper protective plate (11) and the lower protective plate (12).

3. The anti-corrosion device for a heat supply pipeline according to claim 2, characterized in that: The inner wall of the heating pipe (25) is coated with an inner anti-corrosion coating (27), and the outer wall of the heating pipe (25) is coated with an outer anti-corrosion coating (26).

4. The anti-corrosion device for a heat supply pipeline according to claim 2, characterized in that: The upper positioning plate (13) and the lower positioning plate (14) are connected by the cooperation of the insert rod (15) and the locking block (20). The upper positioning plate (13) and the lower positioning plate (14) at both ends of the upper protective plate (11) and the lower protective plate (12) are oriented in the same direction.

5. The anti-corrosion device for a heat supply pipeline according to claim 1, characterized in that: The card block (20) has anti-detachment grooves (2) on both sides of the middle of one end. The anti-detachment grooves (2) are connected to the movable grooves (21). The anti-detachment grooves (2) have notches (22) on both sides of the middle of the middle of the multiple anti-detachment grooves (2). The spacing of the notches (22) is greater than the spacing of the movable grooves (21). The spacing of the movable grooves (21) is slightly greater than the diameter of the anti-detachment ring (16). The diameter of the anti-detachment ring (16) is greater than the spacing of the anti-detachment grooves (2) where there are no notches (22). The spacing of the notches (22) is greater than the diameter of the anti-detachment ring (16). The anti-detachment ring (16) is slidably engaged in the middle of the notches (22). The insertion rod (15) and the anti-detachment ring (16) are respectively located in the middle of the corresponding movable grooves (21).

6. The anti-corrosion device for a heat supply pipeline according to claim 1, characterized in that: The lower positioning plate (14) has screw holes (18) on both sides of the corresponding locking block (20). The middle of the screw hole (18) is connected to the limiting plate (19) by a thread. The anti-detachment ring (16) abuts against the baffle (23).

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