Wear-resistant top pipe

Abstract

The utility model provides a wear -resisting top pipe belongs to cast pipe technical field, including pipeline main part, it is cast pipe foundation and core structure, is used for bearing conveying medium function, and provides support for other structure layer of peripheral equipment, fiber mortar structure layer, its location is in the outer layer position of pipeline main part, is used for with the pipeline main part together bears the external force influence in the use process, provides the corrosion -resistant characteristic for the pipeline main part simultaneously, fiber mortar wear -resistant layer, its location is in the outer layer position of fiber mortar structure layer, this layer is made by one or more kinds of mixing of fiber, cement mortar and emulsion, is used for improving the wear resistance of pipeline main part, the utility model discloses can further improve the wear -resisting effect for pipe further under the basis of guaranteeing the hardness and corrosion -resistant characteristic of pipeline body, thereby can further increase the service life of pipeline.

Description

Technical Field

[0001] This utility model relates to the field of pipe casting equipment technology, specifically to a wear-resistant jacking pipe. Background Technology

[0002] With the accelerating pace of urbanization, the construction and renovation of urban infrastructure are becoming increasingly frequent, with the laying and replacement of pipeline systems being a crucial aspect. Trenchless pipeline construction technology, due to its advantages such as minimal impact on surface traffic and the environment, is gradually becoming the mainstream method for urban pipeline construction. However, the complex and varied underground soil conditions in China, often containing large amounts of rock and other hard materials, place extremely high demands on the protection of the pipeline's outer wall.

[0003] Traditionally, to enhance the resistance of pipelines to damage during the jacking process, a "reinforcing cage + concrete" structure is typically used on the outer wall of the pipeline. While this method provides some protection, it has several drawbacks: First, it results in poor appearance, affecting the overall aesthetics; second, it has poor wear resistance, making the pipeline prone to failure due to wear during use; third, the bonding strength between the structural layer and the pipeline body is insufficient, making it prone to detachment and reducing the protective effect. Furthermore, this structure is expensive to produce and inefficient, severely hindering the rapid installation and efficient operation of the pipeline system.

[0004] In response to the above problems, there is an urgent need in the market for a new type of pipeline structure that can effectively resist the erosion and damage of the complex underground environment, has excellent wear resistance and corrosion resistance, and at the same time reduces production costs and improves production efficiency. Utility Model Content

[0005] In view of this, the present invention provides a wear-resistant jacking pipe. The present invention can further improve the wear resistance of the pipe fittings while ensuring the hardness and corrosion resistance of the pipe body, thereby further increasing the service life of the pipe.

[0006] To solve the above-mentioned technical problems, this utility model provides a wear-resistant jacking pipe, including a pipe body, which is the foundation and core structure of the cast pipe, used to undertake the function of transporting the medium, and to provide support for other external structural layers.

[0007] The fiber mortar structural layer, located on the outer layer of the pipeline body, is used to bear the external forces during use, including jacking force and soil gravity, significantly enhancing the bearing capacity of the wear-resistant jacking pipe, while providing corrosion resistance to the pipeline body.

[0008] The fiber mortar wear-resistant layer, located outside the fiber mortar structural layer, is made of one or more of fibers, cement mortar, and emulsion, and is used to improve the wear resistance of the pipe body.

[0009] The fibers in the fiber mortar structural layer are made of one or more of the following: polypropylene fibers, polyvinyl alcohol fibers, basalt fibers, and steel fibers.

[0010] The fiber mortar structural layer is made of cement mortar, polypropylene fiber, basalt fiber and water-based emulsion.

[0011] An anti-corrosion adhesive layer is also provided between the pipe body and the fiber mortar structure layer. The anti-corrosion adhesive layer is used to firmly bond the fiber mortar structure layer to the pipe body and can further improve the anti-corrosion properties of the pipe body.

[0012] The anti-corrosion adhesive layer is a water-based anti-corrosion resin layer.

[0013] A strength reinforcement layer is also provided between the fiber mortar wear-resistant layer and the fiber mortar structural layer. The strength reinforcement layer is used to further enhance the overall strength between the fiber mortar wear-resistant layer and the fiber mortar structural layer, and to prevent cracking or damage.

[0014] The strength-enhancing layer is an alkali-resistant fiber mesh fabric layer.

[0015] The outer surface of the main body of the pipe is coated with zinc.

[0016] A load-bearing component is also provided at the end of the pipe body away from the socket. The load-bearing component is used to bear the influence of external forces together with the pipe body.

[0017] The load-bearing components are flanges, welding rings, or welding blocks.

[0018] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects: 1. Excellent wear resistance: The fiber mortar wear-resistant layer is made of one or more carefully mixed fibers, cement mortar and emulsion. By adding high-performance fibers (such as polypropylene fibers, polyvinyl alcohol fibers, basalt fibers and steel fibers), the wear resistance of the outer surface of the pipe is greatly improved, effectively resisting the friction and impact of hard materials such as rocks in the complex underground environment, reducing the wear of the pipe during use, and thus extending the service life of the pipe.

[0019] 2. Enhanced load-bearing capacity: The fiber mortar structural layer is located on the outer layer of the pipeline body, sharing the load with the pipeline body to bear the external forces such as jacking force and soil gravity during use, significantly enhancing the load-bearing capacity of the wear-resistant jacking pipe. This design not only ensures the stability of the pipeline during the jacking process but also improves the safety of the pipeline during long-term use.

[0020] 3. Excellent corrosion resistance: The anti-corrosion adhesive layer uses water-based anti-corrosion resin material, which not only firmly bonds the fiber mortar structure layer to the pipeline body, but also further enhances the anti-corrosion properties of the pipeline body. Simultaneously, the outer surface of the pipeline body can be optionally coated with a metallic zinc coating, providing double anti-corrosion protection and effectively resisting the erosion of corrosive substances in the underground soil, ensuring the long-term stable operation of the pipeline.

[0021] 4. Prevention of cracking and damage: A strength-enhancing layer is added between the fiber mortar wear-resistant layer and the fiber mortar structural layer. The alkali-resistant fiber mesh material is used to further enhance the overall strength between the two layers, effectively preventing cracking or damage caused by external forces or environmental changes, and improving the reliability and durability of the pipeline system.

[0022] 5. Improved Appearance and Installation Efficiency: Compared to the traditional "reinforcing cage + concrete" structure, the wear-resistant jacking pipe provided by this utility model has a significantly improved appearance, with a smooth and aesthetically pleasing surface. Furthermore, the prefabricated pipe structure simplifies on-site installation procedures, improves installation efficiency, and reduces construction costs.

[0023] 6. Flexible and diverse load-bearing solutions: The end of the pipeline body away from the socket is equipped with load-bearing components, such as flanges, welding rings, or welding blocks, which can be flexibly selected according to actual project needs, providing a stable and reliable load-bearing point for the pipeline system and ensuring the safe operation of the pipeline under complex geological conditions. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a wear-resistant jacking pipe according to the present invention; Figure 2 This is a structural schematic diagram of the load-bearing component of this utility model.

[0025] Explanation of reference numerals in the attached figures: 1. Pipe body; 2. Anti-corrosion adhesive layer; 3. Fiber mortar structural layer; 4. Strength reinforcement layer; 5. Fiber mortar wear-resistant layer; 11. Load-bearing components. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-2 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0027] This embodiment provides a wear-resistant jacking pipe, such as Figure 1As shown: It includes a pipe body 1 arranged from the inside out, an anti-corrosion adhesive layer 2 connected to the outer surface of the pipe body 1, a fiber mortar structural layer 3 connected to the outer surface of the anti-corrosion adhesive layer 2, a strength reinforcing layer 4 connected to the outer surface of the fiber mortar structural layer 3, and a fiber mortar wear-resistant layer 5 connected to the outer surface of the strength reinforcing layer 4.

[0028] Among them, the fiber mortar structure layer 3 is made of cement mortar, polypropylene fiber with a single filament length of 6mm, basalt fiber with a single filament length of 6mm and water-based emulsion. Its thickness is 10mm. The fiber mortar structure layer 3 can share the jacking force, soil gravity and other external forces during use with the main body of the pipe 1, which significantly enhances the bearing capacity of the wear-resistant jacking pipe.

[0029] Furthermore, the anti-corrosion adhesive layer 2 is a water-based anti-corrosion resin layer with a thickness of 50μm, which not only firmly bonds the fiber mortar structure layer 3 to the pipe body 1, but also further enhances the anti-corrosion properties of the pipe body 1.

[0030] Furthermore, the fiber mortar wear-resistant layer 5 is made of fibers (the fibers are a mixture of polypropylene fibers with a single filament length of 6mm and polyvinyl alcohol fibers with a single filament length of 6mm) with a thickness of 4mm, which greatly improves the wear resistance of the outer surface of the pipe and effectively resists the friction and impact of hard materials such as rocks in the complex underground environment.

[0031] Correspondingly, the strength enhancement layer 4 is an alkali-resistant fiber mesh, which further enhances the overall strength between the fiber mortar structure layer 3 and the fiber mortar wear-resistant layer 5, effectively preventing cracking or damage caused by external forces or environmental changes, and improving the reliability and durability of the pipeline system.

[0032] Correspondingly, the outer surface of the main pipe body 1 can also be coated with a metallic zinc coating. During pipe jacking construction, the pipe needs to withstand complex external forces such as jacking force and soil gravity. The zinc coating ensures the reliability of the pipe under long-term stress conditions by reducing the weakening of pipe strength due to corrosion. Furthermore, the durable anti-corrosion effect of the zinc coating reduces the frequency of pipe maintenance and replacement, further enhancing the service life of the pipe jacking.

[0033] It is worth mentioning that a load-bearing component 11 is also provided at the end of the pipe body 1 away from the socket (spigot position). The load-bearing component 11 can be a flange ring set at the end of the pipe body 1. The flange ring is located on the same axis as the pipe body 1 and can share the external forces such as jacking force and soil gravity during use with the pipe body 1, further enhancing the load-bearing capacity of the wear-resistant jacking pipe.

[0034] Furthermore, the outer diameter of the fiber mortar wear-resistant layer 5 is the same as the diameter of the flange ring, which makes the outer surface of the jacking pipe a smooth cylindrical surface.

[0035] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0036] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A wear-resistant jacking pipe, characterized in that, include: The main body of the pipeline (1) is the foundation and core structure of the cast iron pipe, which is used to carry out the function of transporting the medium and to provide support for other external structural layers; The fiber mortar structural layer (3) is located on the outer layer of the pipe body (1) and is used together with the pipe body (1) to bear the influence of external forces during use, while providing corrosion resistance to the pipe body (1); A fiber mortar wear-resistant layer (5), located outside the fiber mortar structural layer, is made of one or more of fibers, cement mortar and emulsion, and is used to improve the wear resistance of the pipe body (1).

2. The wear-resistant jacking pipe as described in claim 1, characterized in that, The fibers in the fiber mortar structural layer (3) are made of one or more of polypropylene fibers, polyvinyl alcohol fibers, basalt fibers and steel fibers.

3. The wear-resistant jacking pipe as described in claim 2, characterized in that, The fiber mortar structural layer is made of cement mortar, polypropylene fiber, basalt fiber and water-based emulsion.

4. A wear-resistant jacking pipe as described in any one of claims 1-3, characterized in that, An anti-corrosion adhesive layer (2) is also provided between the pipe body (1) and the fiber mortar structure layer (3). The anti-corrosion adhesive layer (2) is used to firmly bond the fiber mortar structure layer (3) to the pipe body (1) and can further improve the anti-corrosion properties of the pipe body (1).

5. The wear-resistant jacking pipe as described in claim 4, characterized in that, The anti-corrosion adhesive layer (2) is a water-based anti-corrosion resin layer.

6. A wear-resistant jacking pipe as described in any one of claims 1-3, characterized in that, A strength enhancement layer (4) is provided between the fiber mortar wear-resistant layer (5) and the fiber mortar structural layer (3). The strength enhancement layer (4) is used to further enhance the overall strength between the fiber mortar wear-resistant layer (5) and the fiber mortar structural layer (3) to prevent cracking or damage.

7. The wear-resistant jacking pipe as described in claim 6, characterized in that, The strength enhancement layer (4) is an alkali-resistant fiber mesh fabric layer.

8. A wear-resistant jacking pipe as described in any one of claims 1-3, characterized in that, The outer surface of the main body of the pipe (1) is coated with zinc.

9. A wear-resistant jacking pipe as described in any one of claims 1-3, characterized in that, The pipe body (1) is also provided with a load-bearing member (11) at one end away from the socket. The load-bearing member (11) is used to bear the influence of external forces together with the pipe body (1).

10. A wear-resistant jacking pipe as described in claim 9, characterized in that, The load-bearing component (11) is a flange, a welding ring, or a welding block.

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