I. Definition and use of liquid nitrogen tank

Liquid nitrogen tank is a container for storing and transporting liquid nitrogen, which is usually made of stainless steel or aluminum alloy. Liquid nitrogen is an ultra-low temperature liquid with extremely low temperature and pressure, which requires special storage and transportation equipment to ensure its stability and safety. The design and manufacture of liquid nitrogen storage tanks need to meet the relevant international standards and specifications to ensure their safety and reliability in use.

The main purpose of liquid nitrogen storage tank is to store and transport liquid nitrogen, which is widely used in industry, medical treatment, scientific research and other fields. In the industrial field, liquid nitrogen storage tanks are used to store and transport cryogenic liquids, such as liquid oxygen and liquid argon, and are used in various industrial production processes. In the medical field, liquid nitrogen tanks are used to store and transport biological samples, such as frozen cells and sperm, for medical research and treatment. In the field of scientific research, liquid nitrogen storage tanks are used to store and transport experimental samples, such as experimental samples in materials science, physical chemistry and other fields.

Bender gas phase liquid nitrogen tank

Second, the structure and principle of liquid nitrogen tank

The structure and principle of liquid nitrogen tank are complicated, mainly including the following parts:

1. Container: The main part of the liquid nitrogen tank is a closed container, usually made of stainless steel or aluminum alloy. There is a layer of heat insulation material in the container to keep the temperature and pressure of liquid nitrogen stable.

2. Filling port: There is a filling port at the top of the liquid nitrogen tank for filling liquid nitrogen into the container. The filler is usually equipped with a safety valve and a pressure gauge to monitor the pressure and temperature of liquid nitrogen.

3. Bottom outlet: There is a liquid outlet at the bottom of the liquid nitrogen tank for discharging liquid nitrogen. Liquid outlet is usually equipped with stop valve and flowmeter to control the discharge speed and flow rate of liquid nitrogen.

4. Brackets and wheels: In order to facilitate movement and transportation, some large liquid nitrogen storage tanks will be equipped with brackets and wheels. The bracket is used to support the whole container, and the wheels make the container move freely on the flat ground.

5. Safety accessories: In order to ensure safe use, the liquid nitrogen tank is also equipped with various safety accessories, such as safety valves, pressure gauges, stop valves, etc. These accessories can monitor and control the pressure and temperature of liquid nitrogen to avoid safety problems such as leakage and explosion.

Bender liquid nitrogen tank

Three, the classification of liquid nitrogen storage tanks

Liquid nitrogen storage tanks are divided into storage liquid nitrogen storage tanks, self-pressurized liquid nitrogen storage tanks, dry liquid nitrogen storage tanks, aviation liquid nitrogen storage tanks, transport liquid nitrogen storage tanks, gas-phase liquid nitrogen storage tanks, liquid nitrogen dewar bottles, large-diameter liquid nitrogen storage tanks and other types.