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LNG Pipe Support
The core function of LNG pipe support is to ensure that pipelines remain cold even in extremely low-temperature environments, while maintaining their structural integrity and operational safety.
Description
The core function of LNG pipe support is to ensure that pipelines remain cold even in extremely low-temperature environments, while maintaining their structural integrity and operational safety. This requires the bracket material to possess multiple properties, including corrosion resistance, wear resistance, low-temperature resistance, and excellent mechanical properties. Therefore, shock-resistant design, excellent durability, and corrosion resistance are essential for LNG pipe support.
Product Parameters
|
Design temperature |
-196℃～normal temperature |
|
Design pressure |
≤ 10.0 MPa (customizable) |
|
Material |
Q235B / Q345B / 304 / 316 stainless steel |
|
Bracket type |
Fixed support / Sliding support / Guide support / Spring support |
|
Pipe diameter range |
DN25 – DN1200 |
|
Anticorrosion treatment |
Hot-dip galvanizing / Epoxy zinc-rich coating / Low-temperature anti-corrosion coating |
|
Installation method |
Welding / Bolted connection |
|
Implementation standards |
GB / ASME / HG / SH standards |
The material selection for LNG pipe support must meet the following key criteria:
Insulation Material Selection:
Materials with excellent thermal insulation properties must be used to effectively reduce heat loss during the transportation of low-temperature LNG and improve transportation efficiency.
Corrosion and Wear Resistance:
Since LNG pipelines are typically buried underground or exposed to harsh environments, the bracket material must possess extremely high corrosion and wear resistance to withstand the dual challenges of chemical corrosion and physical wear.
Low-Temperature Performance:
To withstand the extremely low-temperature environment of LNG (-162°C), the bracket material must exhibit excellent low-temperature performance, ensuring sufficient mechanical strength and toughness even under extreme conditions.
Mechanical Performance Requirements:
In addition to thermal insulation and low-temperature resistance, the bracket must also possess excellent mechanical properties, including high strength, high rigidity, and good seismic resistance to support the weight of the pipeline and withstand external impact.
Vibration-Resistant Design:
To address the potential vibration and displacement risks faced by LNG pipelines, the bracket must adopt a vibration-resistant design. This design utilizes elastic elements or shock absorbers to absorb vibration energy and protect the pipeline from damage.
Durability and Corrosion
Resistance: Brackets exposed to harsh environments for long periods of time must possess extremely high durability and corrosion resistance to ensure their service life and the overall stability of the pipeline system.
APPLICATION FIELD
Chemical industry: In the process of chemical production, some low-temperature reaction or low-temperature material transportation pipelines need to use cold tube supports to maintain a low-temperature environment and ensure the smooth progress of chemical processes. For example, during the production, storage and transportation of liquefied natural gas (LNG), cooling pipe brackets are essential to maintain the low temperature liquid state of LNG.
Comprehensive security throughout the entire process.
Structural Safety
Each LNG pipe support is independently calculated and designed based on the pipe weight (including the weight of the medium, insulation layer, and hydrostatic test water), wind load, and seismic load to ensure sufficient load-bearing capacity and safety factor.
Performance Testing
Our company can provide thermal conductivity test reports and compressive strength reports for key materials (such as insulation blocks), and conduct load testing on finished products to ensure consistency between theoretical design and actual performance.
Corrosion Resistance and Durability
Exposed carbon steel components utilize a heavy-duty anti-corrosion system consisting of epoxy zinc-rich primer, epoxy micaceous iron oxide intermediate coat, and polyurethane topcoat, meeting the requirements of C4-C5 high-corrosion environments and ensuring a service life of several decades.
An integrated, end-to-end workshop ensures production efficiency.
Within our 40,000 square meter production facility, each workshop is laid out according to a streamlined process flow, from raw material storage and cutting, structural forming, welding and assembly, surface treatment, to final inspection and packaging. This design eliminates unnecessary handling and waiting times, ensuring the shortest possible production cycle from steel plate to finished product, and significantly improving production efficiency.
production workshop
production equipment
Testing equipment
FAQ
Q: If the piping needs to be modified or relocated, can your supports be adjusted or reused?
A: Our clamp-type LNG pipe clamps and modular sliding supports are specifically designed for this purpose. The insulation blocks and metal structures are separable, so only certain components need to be replaced during piping modifications, allowing the main support structure to be reused and reducing modification costs.
Q: For LNG projects in seismic zones, how is the seismic design of the supports implemented?
A: We conduct seismic analysis and design according to ASCE 7 or EN 1998 standards, optimizing structural stiffness and damping through finite element calculations, and providing special seismic models with shear keys/limit blocks to ensure stability under the preset seismic acceleration.
Q: When choosing materials for LNG pipe supports, how do you choose between 304 and 316 stainless steel?
A: 304 stainless steel is suitable for general low-temperature environments; 316 stainless steel is suitable for corrosive environments with high chloride ion content, such as coastal areas, offshore platforms, or chemical plants, because the added molybdenum significantly improves pitting corrosion resistance, ensuring the structural safety of the support throughout its service life.
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