Water-gas interface pipeline anti-corrosion device

Abstract

The utility model discloses a water-gas interface pipeline anti-corrosion device, relates to the technical field of sewage treatment, and aims to solve the problems that in the prior art, a gas-water interface has sufficient water and sufficient oxygen, and a carbon steel pipeline mounted in the gas-water interface is extremely easy to corrode. Polypropylene adhesive tapes are wound at the two ends of the PVC heat shrink tube, an anti-corrosion sleeve is arranged outside the PVC heat shrink tube, an air exhaust hole is formed in the upper surface of the anti-corrosion sleeve, the upper end of the anti-corrosion sleeve is connected with a sealing sleeve, and the sealing sleeve enables the anti-corrosion sleeve and the carbon steel pipeline to be detachably connected. Under the action of atmospheric pressure, the internal solution does not drop so as to prevent alternate corrosion of gas and water, the internal carbon steel pipeline is wrapped by the PVC heat shrink tube so as to isolate water and perform secondary corrosion prevention, and the technical structure is simple and convenient to operate and maintain.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a corrosion protection device for a water-air interface pipeline. Background Technology

[0002] The wastewater treatment industry involves numerous pipeline installations, commonly made of materials such as carbon steel, stainless steel, PVC, and PE. Carbon steel pipelines are widely used in wastewater treatment projects across various regions due to their economic efficiency, weldability, and mechanical properties. However, wastewater treatment sites often have high humidity levels, especially at the air-water interface where there is ample moisture and oxygen. Carbon steel pipelines installed in these areas are highly susceptible to corrosion, and newly built wastewater treatment plants typically show signs of rust within a few months. Rusting of pipelines firstly affects their appearance, impacting the user's perception. Secondly, it increases the cost of anti-corrosion construction, and furthermore, due to the depth of the water, poses significant safety hazards. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a corrosion protection device for water-air interface pipelines, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model discloses a corrosion protection device for a water-air interface pipeline. The technical solution includes a carbon steel pipeline. A PVC heat-shrink tubing is wrapped around the carbon steel pipeline. Polypropylene tape is wrapped around both ends of the PVC heat-shrink tubing. An anti-corrosion sleeve is provided on the outside of the PVC heat-shrink tubing. A connecting sleeve is provided on the anti-corrosion sleeve, which is lower than the polypropylene tape at the upper end of the PVC heat-shrink tubing. An air extraction hole is provided on the upper surface of the anti-corrosion sleeve. A sealing sleeve is connected to the upper end of the anti-corrosion sleeve, and the sealing sleeve connects the anti-corrosion sleeve and the carbon steel pipeline together.

[0005] As a preferred embodiment of this utility model, grease is applied between the PVC heat shrink tubing and the carbon steel pipe. The grease is a lubricating oil, which can protect the surface of the carbon steel pipe and isolate it from corrosive gases.

[0006] As a preferred technical solution of this utility model, the top of the anti-corrosion sleeve is provided with a connecting sleeve, and the connecting sleeve is provided with anti-slip texture, which prevents the sealing sleeve and the anti-corrosion sleeve from falling off.

[0007] As a preferred technical solution of this utility model, the anti-corrosion sleeve is made of transparent anti-corrosion material, such as polyvinyl chloride, polyethylene, or glass, to facilitate viewing the liquid level inside the anti-corrosion sleeve.

[0008] As a preferred embodiment of this utility model, the sealing sleeve and the anti-corrosion sleeve are fixed to the carbon steel pipe by a clamp to prevent them from falling off and to facilitate disassembly.

[0009] As a preferred technical solution of this utility model, a corrosion-resistant sealing plug is detachably connected to the air extraction hole. The corrosion-resistant sealing plug and the sealing sleeve are made of corrosion-resistant rubber material and have sealing properties. The sealing sleeve can be fluororubber, silicone rubber, neoprene rubber, etc.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model uses a detachable anti-corrosion sleeve and air extraction technology to extract the air inside the anti-corrosion sleeve, thereby filling the anti-corrosion sleeve with solution and sealing it. Under atmospheric pressure, the internal solution will not drop, thus preventing alternating corrosion of air and water. The internal carbon steel pipe is wrapped with PVC heat shrink tubing, thereby isolating water and providing secondary anti-corrosion. This technology has a simple structure, is easy to operate and maintain, thereby reducing the operating cost of sewage treatment plants, meeting market demand, and facilitating promotion. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a front view of the structure of this utility model;

[0013] Figure 3 This is a cross-sectional view (AA) of the structure of this utility model;

[0014] Figure 4 This is a schematic diagram of the anti-corrosion sleeve structure of this utility model;

[0015] Figure 5 This is a schematic diagram of the installation process of this utility model. Figure 1 ;

[0016] Figure 6 This is a schematic diagram of the installation process of this utility model. Figure 2 .

[0017] In the diagram: 1. Carbon steel pipe; 2. PVC heat shrink tubing; 3. Polypropylene tape; 4. Anti-corrosion sleeve; 401. Air extraction hole; 402. Connecting sleeve; 403. Anti-slip texture; 5. Sealing sleeve; 6. Clamp; 7. Atmospheric environment; 8. Sewage. 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. Example 1

[0019] like Figures 1 to 6 As shown, this utility model discloses an anti-corrosion device for a water-air interface pipeline. The technical solution includes a carbon steel pipe 1, with grease applied to a designated location on the carbon steel pipe 1. The grease is then wrapped with a PVC heat-shrink tubing 2, the lower end of which extends to the bottom of the carbon steel pipe 1. Polypropylene tape 3 is wrapped around both ends of the PVC heat-shrink tubing 2, and an anti-corrosion sleeve 4 is located at the top of the PVC heat-shrink tubing 2. An air extraction hole 401 is formed on the upper surface of the anti-corrosion sleeve 401, and an anti-corrosion sealing plug is provided on the air extraction hole 401. The top of the anti-corrosion sleeve 4 is provided with a connecting sleeve 402. The connecting sleeve 402 and the anti-corrosion sleeve 4 are an integral part. The connecting sleeve 402 has anti-slip texture 403. The anti-corrosion sleeve 4 is made of transparent anti-corrosion material. A sealing sleeve 5 is fitted on the connecting sleeve 402. The sealing sleeve 5 is made of anti-corrosion rubber material and has a sealing function. There are clamps 6 at both ends of the sealing sleeve 5. The clamps 6 fix one end of the sealing sleeve 5 and the connecting sleeve 402, and fix the other end of the sealing sleeve 5 to the carbon steel pipe 1.

[0020] The working principle of this utility model is as follows: When installing the anti-corrosion device on the carbon steel pipe 1, first, the clamp 6, sealing sleeve 5, and anti-corrosion sleeve 4 are sequentially placed on the carbon steel pipe 1. Then, grease is applied to the surface of the carbon steel pipe 1 above and below the atmospheric environment 7 and sewage 8. The PVC heat shrink tubing 2 is then placed over the grease and heated to shrink. Polypropylene tape 3 is wrapped around both ends of the PVC heat shrink tubing 2. Subsequently, the anti-corrosion sleeve 4 is moved to the top of the PVC heat shrink tubing 2 and fixed using the sealing sleeve 5 and clamp 6. The assembled carbon steel pipe 1 is then placed inside the water tank. Figure 5 As shown, by connecting the air pump to the air extraction port 401, the air inside the anti-corrosion sleeve 4 is extracted, causing the liquid level of the sewage 8 inside the anti-corrosion sleeve 4 to rise until it fills the entire inner cavity of the anti-corrosion sleeve 4. Figure 6 As shown, the installation of the anti-corrosion device is completed when the anti-corrosion sealing plug is inserted into the air extraction hole 401.

[0021] The mechanical connection involved in this utility model is a common method used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. It is common knowledge.

[0022] Components not described in detail in this article are existing technologies.

[0023] 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 water-air interface pipeline, comprising a carbon steel pipeline (1), characterized in that: The carbon steel pipe (1) is wrapped with a PVC heat shrink tube (2), and polypropylene tape (3) is wrapped around both ends of the PVC heat shrink tube (2). The PVC heat shrink tube (2) is covered with an anti-corrosion sleeve (4), and a connecting sleeve (402) is provided on the anti-corrosion sleeve (4). The connecting sleeve (402) is lower than the polypropylene tape (3) at the upper end of the PVC heat shrink tube (2). An air extraction hole (401) is opened on the upper surface of the anti-corrosion sleeve (4). A sealing sleeve (5) is connected to the upper end of the anti-corrosion sleeve (4). The sealing sleeve (5) connects the anti-corrosion sleeve (4) and the carbon steel pipe (1) together.

2. The anti-corrosion device for a water-gas interface pipeline according to claim 1, characterized in that: Grease is applied between the PVC heat shrink tubing (2) and the carbon steel pipe (1).

3. The anti-corrosion device for a water-gas interface pipeline according to claim 1, characterized in that: The connecting sleeve (402) is provided with anti-slip texture (403).

4. The anti-corrosion device for a water-gas interface pipeline according to claim 3, characterized in that: The anti-corrosion sleeve (4) is made of transparent anti-corrosion material.

5. The anti-corrosion device for a water-gas interface pipeline according to claim 3, characterized in that: The sealing sleeve (5) is made of corrosion-resistant rubber material and has a sealing function.

6. The anti-corrosion device for a water-gas interface pipeline according to claim 5, characterized in that: The sealing sleeve (5) and the anti-corrosion sleeve (4) are fixed to the carbon steel pipe (1) by a clamp (6).

7. The anti-corrosion device for a water-gas interface pipeline according to claim 1, characterized in that: The air extraction port (401) is detachably connected to an anti-corrosion sealing plug.

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