Anti-corrosion structure of steel-plastic adapter

Abstract

The utility model discloses a steel-plastic adapter anticorrosion structure which comprises a steel-plastic adapter, the inner side of the steel-plastic adapter is connected with a plastic pipeline, the steel-plastic adapter comprises a steel-plastic layer, an epoxy resin layer is arranged on the outer side of the steel-plastic layer, and a waterproof film is formed on the outer side of the epoxy resin layer in a thermoplastic mode. The electroplated polymer ceramic layer is arranged on the inner side of the steel-plastic adapter, so that the abrasion resistance of the inner side and the stability of materials are effectively improved, the tightness degree of pipeline switching is improved, the waterproof film is arranged on the outer side of the steel-plastic adapter, invasion of water vapor can be further reduced, and the service life of the steel-plastic adapter is prolonged. And the anti-corrosion effect of the pipeline is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel-plastic conversion joints, and in particular relates to an anti-corrosion structure of a steel-plastic conversion joint. Background Art

[0002] In the field of pressure pipelines such as gas, relevant national engineering specifications stipulate that plastic pipes can only be buried and are not allowed to directly enter the end of the pipeline - the user's indoor space. Therefore, when plastic pipes enter the home from the courtyard pipe, polyethylene (PE) steel-plastic conversion fittings are usually required. The anti-corrosion performance of polyethylene (PE) pipes is very outstanding, and its design service life can be up to 50 years. The anti-corrosion performance of the steel pipe section of the matching steel-plastic conversion fittings is far from meeting the requirements of polyethylene (PE) pipes. In addition, most of the steel-plastic conversion fittings are buried in humid underground or exposed to the air, so the anti-corrosion requirements are very high. Ordinary steel-plastic conversion fittings usually only have a layer of nylon or epoxy resin anti-corrosion material sprayed on the outside of the steel pipe section. During storage, transportation, installation and later use, they are easily affected by bumps and other factors, resulting in the problem of anti-corrosion layer falling off, and the anti-corrosion effect and service life are not ideal. Utility Model Content

[0003] In order to solve the problems existing in the prior art, the utility model provides a steel-plastic conversion joint anti-corrosion structure with an electroplated polymer ceramic layer on the inner side of the steel-plastic conversion joint, which effectively improves the wear resistance of the inner side and the stability of the material and the tightness of the pipeline conversion, and a water-proof membrane is provided on the outer side of the steel-plastic conversion joint, which can further reduce the intrusion of water vapor and improve the anti-corrosion effect of the pipeline.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steel-plastic conversion joint anti-corrosion structure, including a steel-plastic conversion joint, the inner side of the steel-plastic conversion joint is connected to a plastic pipe, the steel-plastic conversion joint includes a steel-plastic layer, an epoxy resin layer is provided on the outer side of the steel-plastic layer, a waterproof film is thermoplastically molded on the outer side of the epoxy resin layer, and a polymer ceramic layer is electroplated on the inner side of the steel-plastic layer.

[0005] Preferably, the thickness of the water-blocking membrane is 0.03-0.35 mm.

[0006] Preferably, the thickness of the polymer ceramic layer is 1.5-2 mm.

[0007] Compared with the prior art, the beneficial effects of the utility model are:

[0008] An electroplated polymer ceramic layer is provided on the inner side of the steel-plastic adapter, which effectively improves the wear resistance of the inner side and the stability of the material, and improves the tightness of the pipeline transfer. A water-proof membrane is provided on the outer side of the steel-plastic adapter, which can further reduce the intrusion of water vapor and improve the anti-corrosion effect of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the internal structure of the utility model.

[0010] In the figure: 1 steel-plastic adapter, 2 plastic pipe, 11 polymer ceramic layer, 12 steel-plastic layer, 13 epoxy resin layer, 14 waterproof membrane. DETAILED DESCRIPTION

[0011] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0012] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention. Example

[0013] See attached Figure 1 As shown, a steel-plastic conversion joint anti-corrosion structure includes a steel-plastic conversion joint 1, the inner side of the steel-plastic conversion joint 1 is connected to a plastic pipe 2, the steel-plastic conversion joint 1 includes a steel-plastic layer 12, an epoxy resin layer 13 is provided on the outer side of the steel-plastic layer 12, a waterproof membrane 14 is thermoplastically molded on the outer side of the epoxy resin layer 13, and a polymer ceramic layer 11 is electroplated on the inner side of the steel-plastic layer 12.

[0014] Preferably, the waterproof membrane 14 has a thickness of 0.03-0.35 mm.

[0015] Preferably, the thickness of the polymer ceramic layer 11 is 1.5-2 mm.

[0016] Working principle: An electroplated polymer ceramic layer is provided on the inner side of the steel-plastic adapter 1, which effectively improves the wear resistance of the inner side and the stability of the material, and improves the tightness of the pipeline transfer. A water-proof membrane 14 is provided on the outer side of the steel-plastic adapter 1, which can further reduce the intrusion of water vapor and improve the anti-corrosion effect of the pipeline.

[0017] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0018] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A steel-plastic conversion joint anti-corrosion structure, comprising a steel-plastic conversion joint, the inner side of which is connected to a plastic pipe, the steel-plastic conversion joint comprising a steel-plastic layer, the outer side of which is provided with an epoxy resin layer, characterized in that: A water-proof film is formed by thermoplastic molding on the outer side of the epoxy resin layer, and a polymer ceramic layer is electroplated on the inner side of the steel-plastic layer.

2. According to claim 1, the anti-corrosion structure of the steel-plastic conversion joint is characterized by: The thickness of the water-proof membrane is 0.03-0.35 mm.

3. According to claim 1, the anti-corrosion structure of the steel-plastic conversion joint is characterized by: The thickness of the polymer ceramic layer is 1.5-2 mm.

Images