Anti-corrosion structure for bracket part of chimney

Abstract

The utility model discloses a chimney corbel part anti-corrosion structure, which relates to the technical field of chimney corbel part anti-corrosion, and comprises a first anti-corrosion pipe assembly, a butt joint groove is arranged on the outer side of the bottom of the first anti-corrosion pipe assembly, and an expansion joint assembly is arranged on the outer side of the butt joint groove. The expansion joint assembly enables the anti-corrosion structure to have a heat expansion and cold contraction space, the expansion joint assembly comprises a Z-shaped fixing ring and a rubber belt, the Z-shaped fixing ring is installed on the outer side of the butt joint groove, and the rubber belt is installed on the outer side of the bottom of the Z-shaped fixing ring. The Z-shaped fixing rings in the expansion joint assembly are installed on the butt joint grooves formed in the first anti-corrosion pipe assembly and the second anti-corrosion pipe assembly, the Z-shaped fixing rings are connected through the rubber belt, and therefore a certain moving distance is formed between the first anti-corrosion pipe assembly and the second anti-corrosion pipe assembly. Cracks caused by thermal expansion and cold contraction of the anti-corrosion structure are avoided.

Description

Technical Field

[0001] This utility model relates to the field of anti-corrosion technology for chimney bracket parts, specifically an anti-corrosion structure for chimney bracket parts. Background Technology

[0002] The chimney corbel is a key load-bearing and expansion adjustment structure of the inner wall of the chimney. The corbel is located between the inner wall and the outer cylinder of the chimney and is a ring-shaped support structure installed every 10-15 meters along the height of the chimney. In order to ensure a longer service life of the chimney corbel, it is necessary to protect it with an anti-corrosion structure.

[0003] Patent document CN222317031U discloses a chimney anti-corrosion structure, which includes "an outer cylinder and a steel inner cylinder. An anti-corrosion layer is provided on the inner circumferential surface of the steel inner cylinder. The anti-corrosion layer, from the inside out, includes a frame, a primer layer, foamed glass bricks, and a protective layer. The frame is installed on the inner circumferential surface of the steel inner cylinder, forming multiple brick grids between the frame and the steel inner cylinder. The primer layer and foamed glass bricks are sequentially arranged within the brick grids, and the protective layer is located on the outside of the frame and foamed glass bricks. This anti-corrosion structure uses the frame as the installation foundation for the foamed glass bricks, providing support and fixing them. Furthermore, the foamed glass bricks possess advantages such as chemical corrosion resistance, high temperature resistance, excellent thermal insulation performance, resistance to temperature changes, light weight, low volatility, safe construction, long service life, fire resistance, and the ability to mitigate chimney rain. This anti-corrosion structure is low in cost, simple to construct, and highly corrosion-resistant."

[0004] However, one of the chimney anti-corrosion structures in the aforementioned published literature mainly considers the problem that existing anti-corrosion structures cannot alleviate chimney rain, but the anti-corrosion structure lacks expansion joint components, which makes the anti-corrosion structure prone to cracking.

[0005] In view of this, it is necessary to develop an anti-corrosion structure for the chimney bracket section, so as to avoid damage to the anti-corrosion structure due to thermal expansion and contraction. Utility Model Content

[0006] The purpose of this utility model is to provide an anti-corrosion structure for the chimney bracket section, so as to solve the technical problem mentioned in the background art that the lack of expansion joint components in the anti-corrosion structure leads to easy cracking of the anti-corrosion structure.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant structure for the corbel section of a chimney, comprising: a first corrosion-resistant pipe assembly, wherein a mating groove is provided on the outer side of the bottom of the first corrosion-resistant pipe assembly, and an expansion joint assembly is installed on the outer side of the mating groove, wherein the expansion joint assembly provides space for thermal expansion and contraction of the corrosion-resistant structure, and the expansion joint assembly includes a Z-shaped fixing ring and a rubber strip, wherein the Z-shaped fixing ring is installed on the outer side of the mating groove, and the rubber strip is installed on the outer side of the bottom of the Z-shaped fixing ring.

[0008] Preferably, a second anti-corrosion pipe assembly is installed at the bottom of the first anti-corrosion pipe assembly through an expansion joint assembly, and the second anti-corrosion pipe assembly has the same structure as the first anti-corrosion pipe assembly.

[0009] Preferably, the first anti-corrosion pipe assembly includes an anti-corrosion outer pipe, an inner lining, and an anti-corrosion silicone layer, with the inner lining installed inside the anti-corrosion outer pipe and the anti-corrosion silicone layer installed inside the inner lining.

[0010] Preferably, the inner walls of the first and second anti-corrosion pipe assemblies are equipped with drainage ramps, and the drainage ramps are inclined inward.

[0011] Preferably, symmetrical limiting grooves are formed on the outer sides of the first and second anti-corrosion pipe assemblies, and limiting plates are installed on the outer sides of the first and second anti-corrosion pipe assemblies through the limiting grooves. T-shaped blocks are symmetrically installed on the inner sides of the limiting plates, and the T-shaped blocks are respectively fitted and connected to the limiting grooves.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, the first anti-corrosion pipe assembly and the second anti-corrosion pipe assembly are connected by an expansion joint assembly. The Z-shaped fixing ring in the expansion joint assembly is installed on the mating groove opened on the first anti-corrosion pipe assembly and the second anti-corrosion pipe assembly. The Z-shaped fixing rings are connected by a rubber band, so that there is a certain distance of movement between the first anti-corrosion pipe assembly and the second anti-corrosion pipe assembly, and the anti-corrosion structure is prevented from cracking due to thermal expansion and contraction.

[0014] 2. In this utility model, the flow-guiding slope is installed at the corbel part. A slope (slope ≥ 5%) is constructed on the horizontal surface of the corbel using a repair agent to guide the acid liquid to flow to the center of the chimney, preventing the acid liquid from accumulating on the inner wall of the chimney, which would lead to severe corrosion of the inner wall of the chimney. The anti-corrosion silicone layer prevents the liquid from accumulating. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the first anti-corrosion pipe assembly of this utility model;

[0017] Figure 3 For the present utility model Figure 1 Schematic diagram of the structure at point A in the middle;

[0018] Figure 4 This is a schematic diagram of the limiting plate structure of this utility model.

[0019] In the diagram: 1. First anti-corrosion pipe assembly; 2. Second anti-corrosion pipe assembly; 3. Anti-corrosion outer pipe; 4. Inner lining layer; 5. Anti-corrosion silicone layer; 6. Drainage ramp; 7. Connecting groove; 8. Limiting groove; 9. Limiting plate; 10. T-block; 11. Z-shaped fixing ring; 12. Rubber belt. Detailed Implementation

[0020] 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.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Please see Figure 1 and Figure 3 A corrosion-resistant structure for the corbel section of a chimney;

[0024] The system includes: a first anti-corrosion pipe assembly 1 and an expansion joint assembly. The bottom outer side of the first anti-corrosion pipe assembly 1 is provided with a docking groove 7. An expansion joint assembly is installed on the outer side of the docking groove 7. The expansion joint assembly provides space for thermal expansion and contraction of the anti-corrosion structure. The expansion joint assembly includes a Z-shaped fixing ring 11 and a rubber strip 12. The Z-shaped fixing ring 11 is made of 316L stainless steel (temperature resistance ≥600℃, acid corrosion resistance) and is fixedly installed on the outer side of the docking groove 7 by laser welding. The rubber strip 12 is made of fluororubber (FKM), with a thickness of 5mm, tensile strength ≥15MPa, elongation at break ≥300%, temperature resistance range -40℃ to 250℃, and resistance to acid and alkali corrosion with pH value 1-14. It is installed on the bottom outer side of the Z-shaped fixing ring 11. A second anti-corrosion pipe assembly 2 is installed at the bottom of the first anti-corrosion pipe assembly 1 through the expansion joint assembly, and the second anti-corrosion pipe assembly 2 has the same structure as the first anti-corrosion pipe assembly 1.

[0025] The first anti-corrosion pipe assembly 1 and the second anti-corrosion pipe assembly 2 are connected by a connecting groove 7. The flame is installed on the connecting groove 7 through an expansion joint assembly. The first anti-corrosion pipe assembly 1 and the second anti-corrosion pipe assembly 2 are connected by an expansion joint assembly. The Z-shaped fixing ring 11 in the expansion joint assembly is installed on the connecting groove 7 on the first anti-corrosion pipe assembly 1 and the second anti-corrosion pipe assembly 2. The Z-shaped fixing rings 11 are connected by a rubber band 12, so that there is a certain distance of movement between the first anti-corrosion pipe assembly 1 and the second anti-corrosion pipe assembly 2, and the anti-corrosion structure is prevented from cracking due to thermal expansion and contraction.

[0026] Please see Figure 1 , Figure 2 and Figure 4 A corrosion-resistant structure for the corbel section of a chimney;

[0027] The first anti-corrosion pipe assembly 1 includes a second anti-corrosion pipe assembly 2 and an anti-corrosion pipe assembly 1 including an anti-corrosion outer pipe 3, an inner lining layer 4 and an anti-corrosion silicone layer 5. The inner lining layer 4 is installed inside the anti-corrosion outer pipe 3 and the anti-corrosion silicone layer 5 is installed inside the inner lining layer 4. Drainage ramps 6 are installed on the inner walls of the first anti-corrosion pipe assembly 1 and the second anti-corrosion pipe assembly 2, and the drainage ramps 6 are inclined inward. Limiting grooves 8 are symmetrically opened on the outer sides of the first anti-corrosion pipe assembly 1 and the second anti-corrosion pipe assembly 2. Limiting plates 9 are installed on the outer sides of the first anti-corrosion pipe assembly 1 and the second anti-corrosion pipe assembly 2 through the limiting grooves 8. T-shaped blocks 10 are symmetrically installed on the inner side of the limiting plates 9, and the T-shaped blocks 10 are respectively fitted and connected to the limiting grooves 8.

[0028] The outer anti-corrosion pipe 3 is a steel base for the chimney. The inner lining layer 4 is divided into inner and outer brick linings (such as acid-resistant bricks), which bear the functions of anti-corrosion and support. The drainage slope 6 is installed at the corbel part. A slope (slope ≥ 5%) is constructed on the horizontal plane of the corbel with a repair agent to guide the acid liquid to the center of the chimney and prevent the acid liquid from accumulating on the inner wall of the chimney, which would lead to severe corrosion of the inner wall of the chimney. The anti-corrosion silicone layer 5 prevents liquid accumulation. In order to ensure the stability of the anti-corrosion structure, the first anti-corrosion pipe assembly 1 and the second anti-corrosion pipe assembly 2 are stable. The limiting plate 9 used for movable connection is embedded in the inner wall of the limiting groove 8 by the T-block 10. The T-block 10 can slide inside the limiting groove 8, so as not to affect the use of the expansion joint assembly, and also to ensure the stability between the first anti-corrosion pipe assembly 1 and the second anti-corrosion pipe assembly 2.

[0029] The working principle is as follows: First, the anti-corrosion structure is installed on the inner wall of the chimney bracket. The first anti-corrosion pipe assembly 1 and the second anti-corrosion pipe assembly 2 in the anti-corrosion structure are connected by an expansion joint assembly, so that the anti-corrosion structure has expansion and contraction space to avoid damage to the anti-corrosion structure due to thermal expansion and contraction. After the anti-corrosion structure is installed and used, the acid generated inside the chimney reaches the bracket and is quickly discharged through the anti-corrosion silicone layer 5 and the drainage slope 6, so as to avoid the acid from corroding the bracket.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A corrosion-resistant structure for the support section of a chimney, characterized in that, Includes: a first anti-corrosion pipe assembly (1), the bottom outer side of the first anti-corrosion pipe assembly (1) is provided with a docking groove (7), an expansion joint assembly is installed on the outer side of the docking groove (7), the expansion joint assembly provides space for thermal expansion and contraction of the anti-corrosion structure, the expansion joint assembly includes a Z-shaped fixing ring (11) and a rubber strip (12), the Z-shaped fixing ring (11) is installed on the outer side of the docking groove (7), and the rubber strip (12) is installed on the bottom outer side of the Z-shaped fixing ring (11).

2. The anti-corrosion structure for the chimney bracket section according to claim 1, characterized in that: The bottom of the first anti-corrosion pipe assembly (1) is equipped with a second anti-corrosion pipe assembly (2) through an expansion joint assembly, and the second anti-corrosion pipe assembly (2) has the same structure as the first anti-corrosion pipe assembly (1).

3. The anti-corrosion structure for the chimney bracket section according to claim 1, characterized in that: The first anti-corrosion pipe assembly (1) includes an anti-corrosion outer pipe (3), an inner liner (4), and an anti-corrosion silicone layer (5). The inner liner (4) is installed inside the anti-corrosion outer pipe (3), and the anti-corrosion silicone layer (5) is installed inside the inner liner (4).

4. The anti-corrosion structure for the chimney bracket section according to claim 2, characterized in that: The first anti-corrosion pipe assembly (1) and the second anti-corrosion pipe assembly (2) are equipped with a drainage ramp (6), and the drainage ramp (6) is inclined inward.

5. The anti-corrosion structure for the chimney bracket section according to claim 4, characterized in that: The first anti-corrosion pipe assembly (1) and the second anti-corrosion pipe assembly (2) are symmetrically provided with limiting grooves (8). The first anti-corrosion pipe assembly (1) and the second anti-corrosion pipe assembly (2) are provided with limiting plates (9) through the limiting grooves (8). T-shaped blocks (10) are symmetrically installed on the inner side of the limiting plates (9), and the T-shaped blocks (10) are respectively fitted and connected to the limiting grooves (8).

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