Introduction of liquid nitrogen protective clothing

Liquid nitrogen protective clothing is a full-body low-temperature resistant protective equipment designed for personnel in low-temperature operating positions such as liquid nitrogen and liquid ammonia. It is widely used in liquid nitrogen, liquid ammonia, natural gas processing, laboratory research, aerospace engineering, low-temperature storage environment, and freezers. The following is a detailed introduction to liquid nitrogen protective clothing:

1. Composition structure

Liquid nitrogen protective clothing usually consists of three layers of protective materials:

Two layers of thin insulating material: The edges of these two layers of material are bonded together, intercepting a large amount of insulating air without adding extra weight or volume.

Inner layer of high insulation material: The inner layer material has high thermal insulation, which can effectively absorb moisture and keep the inside warm, while taking away moisture through capillary action.

2. Functional characteristics

Low temperature resistance: Suitable for resisting extreme cold, the applicable temperature range is usually -200°C to -350°C.

Multi-layer insulation design: comfortable to wear and very warm.

Light and soft: Low-temperature resistant liquid nitrogen protective clothing is very light, soft, durable, clean, extremely flexible, and does not feel heavy to wear.

Widely applicable: It can be used in 1000-level dust-free rooms or clean rooms, and can also be directly operated to obtain nitrogen from liquid nitrogen dewar bottles.

Easy to wear: Some liquid nitrogen protective clothing also comes with a backpack, which is convenient for use during long-term operations, and can be used with an air respirator to extend working time.

3. Precautions for use

Read the instructions: Before using liquid nitrogen protective clothing, read and understand the instructions in detail to ensure that you understand how to put on and take off the protective clothing correctly, and how to deal with unexpected situations.

Regular inspection: Check the integrity of the protective clothing to ensure that there is no wear, scratches or other damage to prevent liquid nitrogen from penetrating into the protective clothing.

Wear correctly: Make sure that the liquid nitrogen protective clothing completely covers the body and fits tightly. The cuffs, collars and zippers should be sealed as much as possible to prevent liquid nitrogen from penetrating.

Avoid over-inflation: If the liquid nitrogen protective clothing has an air bag, do not over-inflate it to prevent the air bag from rupturing or affecting the ability to move.

Control contact time: Liquid nitrogen is an extremely low-temperature liquid. Long-term exposure may cause frostbite and other injuries. The contact time should be controlled as much as possible and proper rest should be taken.

First aid preparation: Carry first aid kits and emergency rescue equipment with you so that you can provide first aid in time in case of an accident.

Training and guidance: Receive relevant training and guidance to understand the correct use methods, safe operating procedures and emergency measures.

In summary, liquid nitrogen protective clothing is an important equipment to protect personnel in low-temperature operating positions from low-temperature injuries. During use, you need to strictly abide by the instructions for use and safety regulations to ensure your own safety and health.