Anti-erosion structure for insulating layer of coastal power plant pipeline

Abstract

The utility model belongs to the field of coastal power plant pipeline protection, and provides a coastal power plant pipeline thermal insulation layer anti-erosion structure which comprises a medium circulation assembly, a thermal insulation material assembly, a thermal insulation layer shell assembly and a thermal insulation layer anti-erosion assembly. The heat preservation layer shell assembly wraps the outer layer of the heat preservation material assembly, the heat preservation layer anti-erosion assemblies are fixed to the outer surface of the heat preservation layer shell assembly, hydrophobic coatings are arranged on the surfaces of the heat preservation layer anti-erosion assemblies, and the heat preservation layer anti-erosion assemblies are obliquely installed on the two sides of the heat preservation layer shell assembly in a detachable connection mode; the detachable anti-erosion assembly is used for protection, the anti-erosion capacity can be enhanced, salt and corrosive substances in seawater are effectively prevented from eroding the pipeline, the service life of the pipeline is prolonged, the heat preservation effect is improved, heat loss is reduced, and the energy utilization efficiency is improved by using efficient heat preservation materials.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline protection technology for coastal power plants, specifically a corrosion-resistant structure for pipeline insulation layers in coastal power plants. It is suitable for pipeline insulation layer protection in harsh environments such as high temperature, high humidity, and high salinity, and can effectively extend the service life of pipelines and improve insulation performance. Background Technology

[0002] Salt from seawater disperses into the air and adheres to the surface of pipeline insulation layers. It combines with moisture to form a corrosive electrolyte solution, gradually corroding both the outer and inner insulation materials. In coastal environments, the erosion of ordinary insulation layers leads to a decline in insulation performance, requiring frequent replacements, increasing maintenance costs, and potentially affecting the transport of media within the pipeline, even causing safety accidents. As the insulation layer corrodes, the internal insulation material absorbs moisture, significantly increasing its thermal conductivity and resulting in a marked decrease in insulation performance. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides an anti-corrosion structure for the insulation layer of pipelines in coastal power plants. This solves the problem that traditional insulation structures rely on only a single protective layer, which cannot effectively resist the corrosion of salt water vapor, leading to rust and damage to the outer shell of the insulation layer, moisture in the internal insulation material, and increased heat loss and reduced medium transportation efficiency in the pipeline.

[0004] A corrosion-resistant structure for the insulation layer of a pipeline in a coastal power plant includes a medium flow component, an insulation material component, an insulation layer shell component, and an insulation layer corrosion-resistant component. The insulation material component is wrapped around the outer layer of the medium flow component, the insulation layer shell component is wrapped around the outer layer of the insulation material component, and the insulation layer corrosion-resistant component is fixed to the outer surface of the insulation layer shell component.

[0005] The surface of the thermal insulation layer anti-corrosion component is provided with a hydrophobic coating. The thermal insulation layer anti-corrosion component is installed at an angle on both sides of the thermal insulation layer outer shell component by a detachable connection. The tilt angle and size of the thermal insulation layer anti-corrosion component are functionally related to the diameter of the medium flow component, so as to guide rainwater to drain quickly.

[0006] Preferably, an elastic seal is provided between the anti-corrosion component of the insulation layer and the outer shell component of the insulation layer.

[0007] Preferably, the cross-section of the heat insulation layer anti-corrosion component is arc-shaped, zigzag-shaped, or parabolic, and the inner diameter of the heat insulation layer anti-corrosion component is adapted to the outer diameter of the heat insulation layer outer shell component.

[0008] Preferably, the anti-corrosion component of the insulation layer is made of corrosion-resistant material.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. This utility model uses detachable anti-corrosion components for protection, which can enhance anti-corrosion capabilities, effectively prevent the corrosion of pipelines by salt and corrosive substances in seawater, and extend the service life of pipelines.

[0011] 2. This utility model improves the insulation effect, reduces heat loss, and improves energy utilization efficiency by using high-efficiency insulation materials.

[0012] 3. This utility model has a simple structural design, is easy to manufacture and install, and is suitable for various types of insulated pipes, especially in harsh environments such as coastal power plants. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the corrosion-resistant structure of the pipe insulation layer of this utility model.

[0015] In the picture:

[0016] 1. Medium flow assembly; 2. Thermal insulation material assembly; 3. Thermal insulation outer shell assembly; 4. Thermal insulation anti-corrosion assembly. Detailed Implementation

[0017] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0018] As attached Figure 1 To be continued Figure 2 As shown:

[0019] This utility model provides a corrosion-resistant structure for the insulation layer of a pipeline in a coastal power plant. The corrosion-resistant structure for the insulation layer of a pipeline in a coastal power plant consists of a medium flow component 1, an insulation material component 2, an insulation layer shell component 3, and an insulation layer corrosion-resistant component 4. Each component is installed sequentially to form a multi-layer protection system, thereby achieving efficient insulation and corrosion protection for the pipeline.

[0020] Medium flow assembly 1 is used to transport various media required for power plant operation. Its installation location is determined according to the power plant's pipeline layout, and is usually provided by means of overhead, underground, or laying along building walls to ensure that the media can be safely and stably transported to various usage locations. The material and specifications of medium flow assembly 1 are selected according to the characteristics of the transported media (such as temperature, pressure, corrosiveness, etc.) to ensure its long-term stable operation.

[0021] Insulation material component 2 is wrapped around the outer layer of medium flow component 1, using high-efficiency insulation materials such as polyurethane foam, rock wool, and glass wool. Insulation material component 2 is tightly adhered to the surface of medium flow component 1 through methods such as wrapping, wrapping, or pasting to ensure insulation performance. Its thickness is designed according to factors such as medium temperature and ambient temperature to meet insulation requirements under different operating conditions and improve energy utilization efficiency.

[0022] The outer casing component 3 wraps around the outer layer of the insulation material component 2, protecting the internal insulation material from mechanical damage, rainwater erosion, and sunlight exposure. The outer casing component 3 is typically made of metallic materials (such as galvanized steel or aluminum) or non-metallic materials (such as high-density polyethylene), possessing a certain level of strength and weather resistance. It is fixed to the insulation material component 2 through overlapping, riveting, or bolting, forming a complete protective shell that provides reliable external protection for the pipeline insulation layer.

[0023] The anti-corrosion component 4 of the insulation layer is fixed to the outer surface of the insulation layer shell component 3 and is a key anti-corrosion component of the entire structure. Its surface is coated with a hydrophobic coating, which effectively prevents rainwater from remaining on the surface and reduces the contact time between moisture and the insulation layer shell component 3. The anti-corrosion component 4 is installed at an angle on both sides of the insulation layer shell component 3 via a detachable connection method (such as screw connection). The angle and size of the angle are functionally related to the diameter of the medium flow component 1, and can be precisely designed according to the pipe diameter to ensure that rainwater can be quickly discharged along the inclined surface, avoiding water accumulation and erosion of the insulation layer. Its cross-section is designed as an arc, a zigzag, or a parabola, a shape that helps guide rainwater flow while enhancing the strength and stability of the structure. The anti-corrosion component 4 of the insulation layer is made of corrosion-resistant materials (such as stainless steel and polytetrafluoroethylene). It is equipped with an elastic seal between itself and the outer shell component 3 of the insulation layer. The elastic seal is selected from one of the following: rubber sealing strip, silicone strip or foam sealing tape. The inner diameter of the anti-corrosion component 4 and the outer diameter of the outer shell component 3 of the insulation layer are matched with a tolerance of ±2mm to ensure tight installation. This not only prevents rainwater and salt from entering, but also adapts to thermal expansion and contraction caused by temperature changes, further improving the anti-corrosion effect.

[0024] Working principle: Insulation material component 2 reduces heat loss and improves energy efficiency through high-efficiency insulation material. Insulation outer shell component 3 provides an additional protective layer for the insulation material, preventing direct corrosion from the external environment. Insulation anti-corrosion component 4 is fixed to the insulation outer shell component 3 with screws, forming a stable protective structure that effectively prevents corrosion of the pipeline by salt and corrosive substances in seawater.

[0025] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model.

Claims

1. A corrosion-resistant structure for pipeline insulation in coastal power plants, characterized in that: It includes a medium flow component (1), a thermal insulation material component (2), a thermal insulation layer shell component (3), and a thermal insulation layer anti-corrosion component (4). The thermal insulation material component (2) is wrapped around the outer layer of the medium flow component (1), the thermal insulation layer shell component (3) is wrapped around the outer layer of the thermal insulation material component (2), and the thermal insulation layer anti-corrosion component (4) is fixed to the outer surface of the thermal insulation layer shell component (3). The surface of the heat insulation layer anti-corrosion component (4) is provided with a hydrophobic coating. The heat insulation layer anti-corrosion component (4) is installed at an angle on both sides of the heat insulation layer outer shell component (3) by a detachable connection. The tilt angle and size of the heat insulation layer anti-corrosion component (4) are functionally related to the diameter of the medium flow component (1) to guide rainwater to drain quickly.

2. The corrosion-resistant structure for the insulation layer of a coastal power plant pipeline as described in claim 1, characterized in that: An elastic seal is provided between the heat insulation layer anti-corrosion component (4) and the heat insulation layer outer shell component (3).

3. The corrosion-resistant structure for the insulation layer of a coastal power plant pipeline as described in claim 1, characterized in that: The cross-section of the heat insulation layer anti-corrosion component (4) is arc-shaped, zigzag-shaped or parabolic, and the inner diameter of the heat insulation layer anti-corrosion component (4) is adapted to the outer diameter of the heat insulation layer outer shell component (3).

4. The corrosion-resistant structure for the insulation layer of a coastal power plant pipeline as described in claim 1, characterized in that: The heat insulation layer anti-corrosion component (4) is made of corrosion-resistant material.

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