LNG elastic felt is a flexible insulation material specifically designed for cryogenic storage and transportation environments. It is primarily used for insulation and heat preservation of liquefied natural gas (LNG) equipment, cryogenic pipelines, and other cold energy-related facilities. Compared to common insulation materials, LNG elastic felt prioritizes low-temperature performance, flexibility, and long-term stability. It can maintain its structure without cracking or pulverizing in environments as cold as -160°C, ensuring the continuity and stability of the insulation layer.

From a material composition perspective, LNG elastic felt is typically made of fiber materials and a specialized cryogenic bonding system, forming a lightweight, flexible, and uniform insulation felt-like structure. The material contains numerous fine fibers and a layer of still air, effectively reducing heat transfer and allowing storage tanks and pipelines to maintain a stable temperature under extremely low temperatures, minimizing cold loss.

LNG Elastic Felt

I. Core Characteristics

1. Suitable for Cryogenic Environments

LNG storage and transportation temperatures are generally around -160°C. LNG elastic felt can maintain its toughness under these cryogenic conditions, avoiding embrittlement and breakage. This is a key property that distinguishes it from ordinary insulation materials.

2. Flexible and Flexible

Due to its elasticity, the material conforms well to equipment surfaces, making it particularly suitable for cryogenic pipelines with multiple bends and joints, improving construction adaptability.

3. Stable Cold Insulation Performance

The porous fiber internal structure reduces thermal conductivity, minimizing heat transfer to LNG equipment and helping to maintain cryogenic conditions during storage and transportation.

4. Good Vibration Resistance and Dimensional Stability

In LNG ships, storage tanks, and other installations subject to vibration or temperature changes, the elastic felt maintains structural integrity, preventing slight deformation from affecting the cold insulation effect.

5. Easy to Install and Maintain

The material is lightweight and flexible, easy to cut, making the construction process more flexible and improving installation efficiency.

Glass Fiber Elastic Felt

II. Main Application Scenarios

1. LNG Transportation Pipeline Insulation

Used in long-distance pipelines, valve boxes, elbows, and other areas requiring cryogenic insulation.

2. LNG Storage Tank Insulation Layer

Storage tank walls typically require a multi-layered structure, and elastic felt can be used as one of the insulation materials.

3. Cryogenic Equipment and Insulation

Such as LNG refueling stations, natural gas liquefaction units, cryogenic heat exchangers, etc.

4. Cold Energy Recovery Systems

Used to ensure system temperature stability and reduce cold loss.

Elastic Felt

III. Precautions for Use

Although LNG elastic felt has stable performance, it still needs to be used in conjunction with moisture-proof layers and protective surface layers in engineering projects to prevent external moisture from entering and affecting the insulation effect. At the same time, the appropriate thickness and density should be selected according to the project's temperature requirements and equipment type.

LNG elastic felt is a flexible insulation material suitable for cryogenic environments. It has good low-temperature toughness, thermal conductivity, and construction adaptability, and is one of the important insulation materials in LNG storage and transportation engineering. Its value lies in safely and stably maintaining the low temperature of equipment, which helps improve energy utilization efficiency and system operational reliability.

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