A reinforcing structure for a gas pipe

Abstract

The utility model discloses a kind of coal gas pipeline integral reinforcing structure, specifically related to coal gas pipeline reinforcing technical field, comprising: multiple coal gas pipeline carbon steel matrix, multiple the weld between the multiple coal gas pipeline carbon steel matrix is formed;First ammonia-resistant water primer, the first ammonia-resistant water primer outer end is equipped with second ammonia-resistant water primer;Reinforcing layer, the reinforcing layer outer end is equipped with four horizontal diameter carbon fiber reinforcing layer and multiple vertical diameter carbon fiber reinforcing layer.The utility model is by setting first ammonia-resistant water primer, second ammonia-resistant water primer and reinforcing layer in the outer end of coal gas pipeline carbon steel matrix and weld, in overall wrapping, all known scheme is surpassed, overall wrapping is good, corrosion resistance is good, for preventing the secondary corrosion after pipeline corrosion, it has very good protective effect, and setting horizontal diameter carbon fiber reinforcing layer and vertical diameter carbon fiber reinforcing layer reinforcing scheme is strengthened mode of reference chimney, can really play the role of strengthening and reinforcing.

Description

Technical Field

[0001] This utility model relates to the field of gas pipeline reinforcement technology, specifically to an overall reinforcement structure for gas pipelines. Background Technology

[0002] Gas pipelines are channels for transporting gas. Gas channels are generally composed of multiple pipe bases connected together, and these bases are connected by welding, which creates multiple weld seams between the bases.

[0003] Currently, during the transportation of gas through gas pipelines, the welds between the pipeline bodies are prone to leakage over long periods of use. This results in gas waste and gas leaks can easily lead to dangerous situations. Therefore, it is necessary to install a reinforcing structure at the outer end of the gas pipeline. Utility Model Content

[0004] The purpose of this invention is to provide an integrally reinforced structure for gas pipelines to address the aforementioned shortcomings in the technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrally reinforced structure for a gas pipeline, comprising:

[0006] Multiple carbon steel bases for gas pipelines are welded together to form multiple welds;

[0007] A first ammonia-resistant base coating is applied to the carbon steel substrate and weld ends of multiple gas pipelines, and a second ammonia-resistant base coating is applied to the outer end of the first ammonia-resistant base coating.

[0008] A reinforcing layer is provided at the outer end of the second ammonia-resistant base coating, and the outer end of the reinforcing layer is provided with four transverse carbon fiber reinforcement layers and multiple vertical carbon fiber reinforcement layers.

[0009] Preferably, the material of the first ammonia-resistant bottom coating is UN27 high-molecular ceramic polymer, and the thickness of the first ammonia-resistant bottom coating is 100μm to 200μm.

[0010] Preferably, the material of the second ammonia-resistant bottom coating is UN87 high-molecular ceramic polymer, and the thickness of the second ammonia-resistant bottom coating is 300μm.

[0011] Preferably, the reinforcing layer is made of UA808 high molecular ceramic polymer, and the thickness of the reinforcing layer is greater than or equal to 3.5 mm.

[0012] Preferably, the total width of the four transverse carbon fiber reinforcement layers is one-quarter of the pipe diameter circumference, and the vertical carbon fiber reinforcement layers are arranged every 120-150 cm, with a width of 30-50 cm.

[0013] Preferably, the outer ends of the transverse carbon fiber reinforcement layer and the vertical carbon fiber reinforcement layer are provided with an aging-resistant surface layer, and the material of the aging-resistant surface layer is UC421 polysiloxane.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] By applying a first ammonia-resistant primer, a second ammonia-resistant primer, and a reinforcing layer to the carbon steel substrate and weld ends of the gas pipeline, the overall encapsulation surpasses all currently known solutions. It offers excellent overall encapsulation and corrosion resistance, providing strong protection against secondary corrosion after pipeline perforation and facilitating subsequent maintenance. Furthermore, the reinforcement scheme, which incorporates horizontal and vertical carbon fiber reinforcement layers, draws inspiration from chimney reinforcement methods and can truly achieve the desired strengthening effect. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the carbon steel base and weld connection structure of the gas pipeline of this utility model.

[0018] Figure 2 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall three-dimensional sectional structure of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the carbon steel base, weld seam, and reinforcing layer of the gas pipeline of this utility model.

[0021] Figure 5 This is a three-dimensional structural diagram of the carbon steel substrate of the gas pipeline, the first ammonia-resistant primer, and the second ammonia-resistant primer of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Carbon steel substrate for gas pipeline; 2. Weld seam; 3. First ammonia-resistant primer; 4. Second ammonia-resistant primer; 5. Reinforcing layer; 6. Horizontal carbon fiber reinforcement layer; 7. Vertical carbon fiber reinforcement layer; 8. Aging-resistant surface layer. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] This utility model provides, for example Figures 1 to 5 The gas pipeline integral reinforcement structure shown includes:

[0026] Multiple carbon steel bases 1 of gas pipelines are welded together to form multiple welds 2;

[0027] A first ammonia-resistant base coating 3 is provided on the outer ends of the carbon steel substrate 1 and weld 2 of multiple gas pipelines, and a second ammonia-resistant base coating 4 is provided on the outer ends of the first ammonia-resistant base coating 3.

[0028] The reinforcing layer 5 is located at the outer end of the second ammonia-resistant primer 4. The outer end of the reinforcing layer 5 is provided with four horizontal carbon fiber reinforcement layers 6 and multiple vertical carbon fiber reinforcement layers 7. The outer ends of the horizontal carbon fiber reinforcement layers 6 and the vertical carbon fiber reinforcement layers 7 are provided with an aging-resistant surface layer 8.

[0029] First, conduct thickness testing on the gas pipeline sections requiring reinforcement. Then, use a high-pressure water gun or water to clean the outer wall of the pipeline, removing any adhering substances and cleaning thoroughly. Alternatively, use a paint remover to remove the paint film from the gas pipeline, and then apply a layer of rust converter. Next, apply a first ammonia-resistant primer 3 (UN27 high-molecular ceramic polymer) to the outer wall of the pipeline, with a thickness of 100μm to 200μm. Then, apply a second ammonia-resistant primer 4 (UN87) with high-strength bonding, with a thickness of approximately 300μm. These two primers serve two purposes: first, to increase the bonding strength of the materials; and second, to seal leaks and prevent their spread. After the UN87 high-molecular polymer material has cured, apply a second primer on top of the first and second ammonia-resistant primers 3. A reinforcing layer 5 is applied to the UA808 pipeline. Besides strengthening the pipeline, this layer provides excellent protection against corrosion of the gas pipeline, whether through the carbon steel base 1 or the weld 2. It also reinforces thinner areas of the pipeline and prevents leaks. The minimum thickness of the reinforcing layer 5 is 3.5mm. Carbon fiber is used for overall reinforcement at the outer end of the reinforcing layer 5. This reinforcement involves four horizontal carbon fiber reinforcing layers 6 along the pipeline's perimeter, with a total width equal to one-quarter of the pipe's circumference to ensure lateral tensile strength. A vertical carbon fiber reinforcing layer 7, 30-50cm wide, is applied every 120-150cm around the pipeline. Finally, a UC421 polysiloxane reinforcing layer 5 is applied.

[0030] This invention, by setting a first ammonia-resistant base coating 3, a second ammonia-resistant base coating 4, and a reinforcing layer 5 on the outer end of the carbon steel substrate 1 and weld seam 2 of the gas pipeline, surpasses all known solutions in terms of overall coverage, providing excellent overall coverage and corrosion resistance. It offers good protection against secondary corrosion after pipeline erosion and facilitates subsequent maintenance. The reinforcement scheme of setting horizontal carbon fiber reinforcement layer 6 and vertical carbon fiber reinforcement layer 7 is inspired by the reinforcement method of chimneys, which can truly strengthen and reinforce the pipeline. This embodiment specifically solves the problem in the prior art that the weld seam between the pipeline substrates is prone to leakage during long-term use of gas pipelines, which leads to gas waste and can easily cause dangerous situations.

[0031] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An integrally reinforced structure for a gas pipeline, characterized in that, include: Multiple carbon steel bases (1) of gas pipelines are welded together to form multiple welds (2); A first ammonia-resistant base coating (3) is provided on the outer ends of the carbon steel substrate (1) and weld (2) of multiple gas pipelines, and a second ammonia-resistant base coating (4) is provided on the outer ends of the first ammonia-resistant base coating (3). The reinforcing layer (5) is located at the outer end of the second ammonia-resistant base coating (4), and the outer end of the reinforcing layer (5) is provided with four transverse carbon fiber reinforcement layers (6) and multiple vertical carbon fiber reinforcement layers (7).

2. The integral reinforcement structure for a gas pipeline according to claim 1, characterized in that: The material of the first ammonia-resistant bottom coating (3) is UN27 high molecular ceramic polymer, and the thickness of the first ammonia-resistant bottom coating (3) is 100μm to 200μm.

3. The integral reinforcement structure for a gas pipeline according to claim 1, characterized in that: The material of the second ammonia-resistant base coating (4) is UN87 high molecular ceramic polymer, and the thickness of the second ammonia-resistant base coating (4) is 300μm.

4. The integral reinforcement structure for a gas pipeline according to claim 1, characterized in that: The reinforcing layer (5) is made of UA808 high molecular ceramic polymer, and the thickness of the reinforcing layer (5) is greater than or equal to 3.5 mm.

5. The integral reinforcement structure for a gas pipeline according to claim 1, characterized in that: The total width of the four transverse carbon fiber reinforcement layers (6) is one-quarter of the pipe diameter circumference. The vertical carbon fiber reinforcement layers (7) are arranged every 120-150 cm, and the width of the vertical carbon fiber reinforcement layers (7) is 30-50 cm.

6. The integral reinforcement structure for a gas pipeline according to claim 1, characterized in that: The outer ends of the transverse carbon fiber reinforcement layer (6) and the vertical carbon fiber reinforcement layer (7) are provided with an aging-resistant surface layer (8), and the material of the aging-resistant surface layer (8) is UC421 polysiloxane.

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