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CN-224229450-U - Composite plastic-coated drinking water pipeline

CN224229450UCN 224229450 UCN224229450 UCN 224229450UCN-224229450-U

Abstract

The utility model discloses a composite plastic-coated drinking water pipeline, which comprises a pipeline body, wherein the pipeline body comprises an epoxy resin coating, the inner surface of the epoxy resin coating is coated with a Teflon coating, the inner surface of the Teflon coating is coated with a zinc coating, the inner surface of the zinc coating is coated with a boron nitride coating layer, a flange plate is arranged at the joint of the pipeline body, and mounting bolts are arranged on the front surface of the flange plate. According to the technical scheme, the problem that the existing plastic coated pipeline is poor in corrosion resistance is solved, and the coating of the plastic coated pipeline can be aged gradually along with the increase of the service time and the influence of environmental factors. The aged coating may have cracking, peeling and other phenomena, and the protective performance of the coating on the pipeline is reduced, so that the corrosion resistance of the pipeline is reduced, and especially the aging speed of the coating may be accelerated under the conditions of long-term exposure to ultraviolet rays, humid environment or frequent temperature change and the like.

Inventors

  • LIU JIANJUN

Assignees

  • 包头市军达管业有限公司

Dates

Publication Date
20260512
Application Date
20250526

Claims (7)

  1. 1. The composite plastic-coated drinking water pipeline comprises a pipeline body (1) and is characterized in that the pipeline body (1) comprises an epoxy resin coating (101), the inner surface of the epoxy resin coating (101) is coated with a Teflon coating (102), the inner surface of the Teflon coating (102) is coated with a zinc coating (103), and the inner surface of the zinc coating (103) is coated with a boron nitride coating layer (104).
  2. 2. The composite plastic-coated drinking water pipe as claimed in claim 1, wherein the joint of the pipe body (1) is provided with a flange, and the front surface of the flange is provided with mounting bolts.
  3. 3. The composite drinking water plastic-coated pipeline as claimed in claim 1, wherein the boron nitride coating layer (104) comprises a conductive copper coating layer (1041), and the inner surface of the conductive copper coating layer (1041) is coated with a polyethylene resin layer (1042).
  4. 4. The composite plastic-coated drinking water pipe of claim 3, wherein the inner surface of the polyethylene resin layer (1042) is coated with an epoxy iron red primer layer (1043), and the inner surface of the epoxy iron red primer layer (1043) is coated with red lead antirust paint (1044).
  5. 5. The composite drinking water plastic-coated pipeline as set forth in claim 4, wherein the thickness of the epoxy iron oxide red primer layer (1043) is zero three millimeters, and the thickness of the red lead antirust paint (1044) is zero two millimeters.
  6. 6. The composite drinking water plastic-coated pipeline as claimed in claim 1, wherein the zinc coating (103) comprises a chlorosulfonated polyethylene coating layer (1031), and the outer surface of the chlorosulfonated polyethylene coating layer (1031) is coated with an aluminum tripolyphosphate coating layer (1032).
  7. 7. The composite drinking water plastic-coated pipeline as set forth in claim 6, wherein the aluminum tripolyphosphate coating (1032) has an outer surface coated with a polyurea coating (1033), and the polyurea coating (1033) has an outer surface coated with a fluorocarbon coating (1034).

Description

Composite plastic-coated drinking water pipeline Technical Field The utility model relates to the technical field of plastic-coated pipelines, in particular to a composite plastic-coated drinking water pipeline. Background ‌ Plastic-coated pipeline ‌ is a novel pipeline material, forms a steel-plastic composite structure by welding a layer of plastic anti-corrosion layer on the inner wall and the outer wall of a steel pipe, combines the high strength of the steel pipe and the anti-corrosion performance of plastic, overcomes the defects of easy corrosion of the steel pipe and low strength of the plastic pipe, has higher design life, but the corrosion resistance effect of the traditional plastic-coated pipeline is poor, and the coating of the plastic-coated pipeline can be gradually aged along with the increase of the service time and the influence of environmental factors. The aged coating may have cracks, flaking and other phenomena, and the protective performance of the coating on the pipeline is reduced, so that the corrosion resistance of the pipeline is reduced, and especially the aging speed of the coating may be accelerated under the conditions of long-term exposure to ultraviolet rays, humid environment or frequent temperature change and the like. Disclosure of utility model The utility model aims to provide a composite plastic-coated drinking water pipeline which has the advantage of corrosion resistance. In order to achieve the purpose, the utility model provides the technical scheme that the composite plastic-coated drinking water pipeline comprises a pipeline body, wherein the pipeline body comprises an epoxy resin coating, the inner surface of the epoxy resin coating is coated with a Teflon coating, the inner surface of the Teflon coating is coated with a zinc coating, and the inner surface of the zinc coating is coated with a boron nitride coating layer. As a preferable scheme, the joint of the pipeline body is provided with a flange, and the front surface of the flange is provided with a mounting bolt. Preferably, the boron nitride coating layer comprises a conductive copper coating layer, and the inner surface of the conductive copper coating layer is coated with a polyethylene resin layer. As a preferable scheme, the inner surface of the polyethylene resin layer is coated with an epoxy iron oxide red primer layer, and the inner surface of the epoxy iron oxide red primer layer is coated with red lead antirust paint. As a preferable scheme, the thickness of the epoxy iron oxide red primer layer is zero three millimeters, and the thickness of the red lead antirust paint is zero two millimeters. Preferably, the zinc coating comprises a chlorosulfonated polyethylene coating layer, and the outer surface of the chlorosulfonated polyethylene coating layer is coated with an aluminum tripolyphosphate coating layer. Preferably, the outer surface of the aluminum tripolyphosphate coating is coated with a polyurea coating, and the outer surface of the polyurea coating is coated with a fluorocarbon coating. Compared with the prior art, the utility model has the following beneficial effects: According to the technical scheme, the problem that the existing plastic coated pipeline is poor in corrosion resistance is solved, and the coating of the plastic coated pipeline can be aged gradually along with the increase of the service time and the influence of environmental factors. The aged coating may have cracking, peeling and other phenomena, and the protective performance of the coating on the pipeline is reduced, so that the corrosion resistance of the pipeline is reduced, and especially the aging speed of the coating may be accelerated under the conditions of long-term exposure to ultraviolet rays, humid environment or frequent temperature change and the like. Drawings FIG. 1 is a schematic diagram of the structure of the present utility model; FIG. 2 is a cross-sectional view of the pipe body structure of the present utility model; FIG. 3 is a cross-sectional view of the boron nitride coating layer structure of the present utility model; fig. 4 is a cross-sectional view of the zinc coating structure of the present utility model. In the figure, 1, a pipeline body, 101, an epoxy resin coating, 102, a Teflon coating, 103, a zinc coating, 104, a boron nitride coating layer, 1031, a chlorosulfonated polyethylene coating layer, 1032, an aluminum tripolyphosphate coating layer, 1033, a polyurea coating layer, 1034, a fluorocarbon coating layer, 1041, a conductive copper coating layer, 1042, a polyethylene resin layer, 1043, an epoxy iron red primer layer, 1044 and red lead antirust paint. Detailed Description The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodimen