Corrosion-resistant galvanized steel pipe

Abstract

The utility model relates to the technical field of steel pipes, and discloses a corrosion-resistant galvanized steel pipe which comprises a first steel pipe body and a second steel pipe body, corrosion-resistant layers are arranged on the outer walls of the first steel pipe body and the second steel pipe body, anti-oxidation layers are arranged on the outer walls of the first steel pipe body and the second steel pipe body, and sliding sleeves are connected to the outer walls of the first steel pipe body and the second steel pipe body in a sliding mode. The two sliding sleeves are arranged in the first steel pipe and the second steel pipe correspondingly, sealing assemblies are arranged in the two sliding sleeves, connecting assemblies are arranged in the first steel pipe and the second steel pipe correspondingly, each sealing assembly comprises two sealing strips, the two sealing strips are arranged in the two sliding sleeves correspondingly, and sealing rings are arranged in the two sliding sleeves correspondingly. The corrosion-resistant layer arranged on the outer wall of the steel pipe resists corrosion of external corrosive substances and reduces chemical corrosion, the oxidation-resistant layer prevents oxidation reaction of the steel pipe and oxygen, and meanwhile, the sealing strip and the sealing ring in the sliding sleeve are in close contact with the steel pipe to effectively seal the joint between the steel pipes, so that the service life of the steel pipe is prolonged. The effect of protecting the steel pipe in all directions is achieved.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe technology, and in particular to a corrosion-resistant galvanized steel pipe. Background Technology

[0002] In modern industrial pipeline transportation systems, building water supply and drainage projects, and infrastructure construction, galvanized steel pipes have become one of the most widely used pipe materials due to their excellent mechanical properties and economy. However, with the increasing complexity of industrial environments and the increasing service life of buildings, steel pipes face corrosion from various factors such as acids and alkalis, humid air, and soil corrosion. At the same time, sealing failures at joints occur frequently, leading to pipeline leaks, shortened service life, and even safety accidents. Especially in highly corrosive environments such as chemical and marine engineering, the corrosion resistance of ordinary galvanized steel pipes can hardly meet the requirements for long-term stable operation. Therefore, the development of new galvanized steel pipes with high-efficiency corrosion resistance and reliable sealing structures is of great significance for improving project quality, reducing maintenance costs, and ensuring production safety.

[0003] Currently, most galvanized steel pipes on the market are produced using hot-dip galvanizing. This process involves immersing the steel pipe in molten zinc to form a zinc layer on its surface. The electrochemical protection of zinc prevents the steel pipe substrate from rusting. This galvanized layer can isolate oxygen and moisture to a certain extent, thus slowing down the corrosion process.

[0004] However, existing galvanized steel pipes suffer from insufficient corrosion resistance and short service life. Although the hot-dip galvanizing layer provides some protection, it will gradually be corroded and consumed when exposed to strong acid and alkali solutions, high humidity environments, or media containing chloride ions for a long time, losing its protective function. This results in the steel pipe substrate being directly exposed to the corrosive environment, accelerating rusting and perforation. For galvanized steel pipes transporting corrosive liquids, the zinc layer cannot resist the continuous erosion of the medium, which not only causes media leakage and environmental pollution, but also requires frequent pipe replacement, increasing maintenance costs and production downtime losses, and affecting water supply quality and pipeline lifespan. Therefore, a corrosion-resistant galvanized steel pipe is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a corrosion-resistant galvanized steel pipe, which aims to improve the problem that in the prior art, when in long-term contact with strong acid and alkali solutions, high humidity environments or media containing chloride ions, the zinc layer will be gradually corroded and consumed, losing its protective function and resulting in a short service life.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A corrosion-resistant galvanized steel pipe includes a steel pipe one and a steel pipe two. The outer walls of both steel pipe one and steel pipe two are provided with a corrosion-resistant layer and an anti-oxidation layer. The outer walls of both steel pipe one and steel pipe two are slidably connected with sliding sleeves. Sealing components are provided inside the two sliding sleeves. Connecting components are provided inside both steel pipe one and steel pipe two.

[0008] The sealing assembly includes two sealing strips, which are respectively disposed inside the two sliding sleeves. Each of the two sliding sleeves is provided with a sealing ring. The two sealing strips and sealing rings are in contact with the first steel pipe and the second steel pipe, respectively.

[0009] As a further description of the above technical solution:

[0010] The connecting assembly includes two connecting rings, which are slidably connected inside the first steel pipe and the second steel pipe, respectively.

[0011] As a further description of the above technical solution:

[0012] A connecting tube is fixedly connected between the two connecting rings, and both sliding sleeves are slidably connected to the outer wall of the connecting tube.

[0013] As a further description of the above technical solution:

[0014] Both connecting rings have screw holes inside, and both sliding sleeves have positioning holes inside.

[0015] As a further description of the above technical solution:

[0016] Both of the sliding sleeves are equipped with screws inside, which pass through the steel pipe one, steel pipe two and positioning holes.

[0017] As a further description of the above technical solution:

[0018] Both screws have a rotating rod fixedly connected to one end, and the screws are threaded into the screw holes.

[0019] As a further description of the above technical solution:

[0020] One end of each of the steel pipes is respectively attached to the left and right ends of the connecting pipe.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the corrosion-resistant layer set on the outer wall of the steel pipe resists the erosion of external corrosive substances and reduces chemical corrosion. The anti-oxidation layer prevents the steel pipe from reacting with oxygen. At the same time, the sealing strip and sealing ring inside the sliding sleeve are in close contact with the steel pipe to form a sealing structure, effectively sealing the connection between the steel pipes. This achieves the effect of all-round protection of the steel pipe and solves the problem that when the steel pipe is in long-term contact with strong acid and alkali solutions, high humidity environment or chloride ion-containing media, the zinc layer will be gradually corroded and consumed, lose its protective function and have a short service life. This improves the corrosion resistance of the steel pipe.

[0023] 2. In this utility model, the initial connection and positioning are achieved by sliding the connecting ring into the inside of the steel pipe. Then, the sliding sleeve is slid to align its positioning hole with the screw hole of the connecting ring. The screw is inserted and the rotating rod is rotated to fix the sliding sleeve and the connecting ring, thereby completing the connection between the steel pipes. This achieves the effect of quick connection and disassembly of the steel pipes, solving the problems of cumbersome operation, long time consumption, and difficulty in flexibly adjusting the pipeline layout according to actual needs in the traditional steel pipe connection method, thus improving the flexibility of the steel pipe. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a corrosion-resistant galvanized steel pipe proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the sliding sleeve structure of a corrosion-resistant galvanized steel pipe proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the outer wall structure of a corrosion-resistant galvanized steel pipe according to the present invention.

[0027] Figure 4 This is a schematic diagram of a connecting ring structure for a corrosion-resistant galvanized steel pipe proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the sealing strip structure for a corrosion-resistant galvanized steel pipe proposed in this utility model.

[0029] Legend:

[0030] 1. Steel pipe one; 2. Steel pipe two; 3. Corrosion-resistant layer; 4. Anti-oxidation layer; 5. Connecting ring; 6. Connecting pipe; 7. Sliding sleeve; 8. Sealing strip; 9. Sealing ring; 10. Screw hole; 11. Screw; 12. Rotating rod; 13. Positioning hole. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1 , Figure 3 and Figure 5 The present invention provides an embodiment of a corrosion-resistant galvanized steel pipe, comprising a steel pipe 1 and a steel pipe 2. Both steel pipe 1 and steel pipe 2 are provided with a corrosion-resistant layer 3 and an anti-oxidation layer 4 on their outer walls. The presence of these coatings significantly improves the durability of the steel pipe in harsh environments. The corrosion-resistant layer 3 can effectively resist the erosion of various chemical substances and extend the service life of the steel pipe. The anti-oxidation layer 4 can prevent oxidation of the steel pipe surface, thereby reducing the impact of oxidation on the strength and stability of the steel pipe. Both steel pipe 1 and steel pipe 2 are slidably connected with sliding sleeves 7, and sealing components are provided inside the two sliding sleeves 7. Both steel pipe 1 and steel pipe 2 are provided with connecting components inside.

[0033] The sealing assembly includes two sealing strips 8, which are respectively disposed inside two sliding sleeves 7. Each sliding sleeve 7 is provided with a sealing ring 9. The two sealing strips 8 and the sealing rings 9 are in contact with steel pipe 1 and steel pipe 2, respectively. The cooperation between the sealing strips 8 and the sealing rings 9 not only improves the sealing performance and effectively prevents corrosion at the connection between the steel pipes, but also effectively extends the service life of the steel pipes and reduces the frequency and cost of maintenance.

[0034] Reference Figure 2 , Figure 4 and Figure 5The connecting assembly includes two connecting rings 5, which are slidably connected inside steel pipe 1 and steel pipe 2, respectively. The connecting rings 5 ​​can slide inside the steel pipes, ensuring a flexible connection between the two pipes while providing a stable fixation. A connecting pipe 6 is fixedly connected between the two connecting rings 5. Two sliding sleeves 7 are slidably connected to the outer wall of the connecting pipe 6. Each connecting ring 5 has a screw hole 10 inside, and each sliding sleeve 7 has a positioning hole 13 inside. Each sliding sleeve 7 has a screw 11 inside, which passes through steel pipe 1, steel pipe 2, and the positioning hole 10. Inside the 3, screws 11 pass through the positioning holes 13 in steel pipe 1, steel pipe 2, and sliding sleeve 7, ensuring a tight fit between the connecting ring 5 and the sliding sleeve 7 and preventing any loosening or displacement. One end of each screw 11 is fixedly connected to a rotating rod 12. The user can adjust the tightness of the screws 11 by rotating the rotating rod 12 to ensure a stable connection between the steel pipes. The screws 11 are threaded into the screw holes 10. One end of steel pipe 1 and steel pipe 2 are respectively attached to the left and right ends of the connecting pipe 6. The connecting pipe 6 acts as a bridge between the steel pipes, bearing the role of transmitting force and physical pressure.

[0035] Working principle: When using this corrosion-resistant galvanized steel pipe, the corrosion-resistant layer 3 on the outer wall of steel pipe 1 and steel pipe 2 can resist the erosion of the steel pipe by external corrosive substances, reduce chemical corrosion, and the anti-oxidation layer 4 can prevent the steel pipe from reacting with oxygen to avoid rusting, thereby extending the service life of the steel pipe. At the same time, the sliding sleeve 7 can slide on the outer wall of steel pipe 1, steel pipe 2 and connecting pipe 6. The sealing strip 8 and sealing ring 9 inside the sliding sleeve 7 are in close contact with the steel pipe to form a sealing structure, which can prevent liquid and gas leakage and effectively seal the connection between the steel pipes.

[0036] When connecting steel pipe 1 and steel pipe 2, firstly, slide the two connecting rings 5 ​​into the interior of steel pipe 1 and steel pipe 2 respectively, so that the two ends of the connecting pipe 6 are in contact with one end of steel pipe 1 and steel pipe 2, achieving initial connection and positioning. Then, slide the two sliding sleeves 7 on the outer wall of steel pipe 1 and steel pipe 2. When the positioning hole 13 inside the sliding sleeve 7 is connected to the screw hole 10 inside the connecting ring 5, insert the screw 11 into the positioning hole 13 and the screw hole 10. By rotating the rotating rod 12, the screw 11 is moved in the positioning hole 13 and threaded into the screw hole 10 of the connecting ring 5. At the same time, the screw 11 extends into the steel pipe, fixing the sliding sleeve 7 and the connecting ring 5, thereby firmly connecting steel pipe 1 and steel pipe 2 together, thus achieving the effect of quick connection between steel pipes.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A corrosion-resistant galvanized steel pipe, comprising steel pipe one (1) and steel pipe two (2), characterized in that: The outer walls of steel pipe one (1) and steel pipe two (2) are provided with corrosion-resistant layer (3), the outer walls of steel pipe one (1) and steel pipe two (2) are provided with anti-oxidation layer (4), the outer walls of steel pipe one (1) and steel pipe two (2) are slidably connected with sliding sleeve (7), the two sliding sleeves (7) are provided with sealing components, and the steel pipe one (1) and steel pipe two (2) are provided with connecting components. The sealing assembly includes two sealing strips (8), which are respectively disposed inside the two sliding sleeves (7). Each of the two sliding sleeves (7) is provided with a sealing ring (9). The two sealing strips (8) and the sealing rings (9) are in contact with the first steel pipe (1) and the second steel pipe (2), respectively.

2. The corrosion-resistant galvanized steel pipe according to claim 1, characterized in that: The connecting assembly includes two connecting rings (5), which are slidably connected inside the first steel pipe (1) and the second steel pipe (2), respectively.

3. The corrosion-resistant galvanized steel pipe according to claim 2, characterized in that: A connecting tube (6) is fixedly connected between the two connecting rings (5), and the two sliding sleeves (7) are slidably connected to the outer wall of the connecting tube (6).

4. The corrosion-resistant galvanized steel pipe according to claim 3, characterized in that: Both connecting rings (5) have screw holes (10) inside, and both sliding sleeves (7) have positioning holes (13) inside.

5. The corrosion-resistant galvanized steel pipe according to claim 4, characterized in that: Both of the sliding sleeves (7) are provided with screws (11), which pass through the steel pipe one (1), steel pipe two (2) and positioning hole (13).

6. The corrosion-resistant galvanized steel pipe according to claim 5, characterized in that: Both screws (11) have a rotating rod (12) fixedly connected to one end, and the screws (11) are threaded into the screw hole (10).

7. The corrosion-resistant galvanized steel pipe according to claim 3, characterized in that: One end of the first steel pipe (1) and the second steel pipe (2) are respectively attached to the left and right ends of the connecting pipe (6).

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