60m3Horizontal Low-Temperature Liquefied Natural Gas Storage Tank Technical Specifications 

（2）Tank pipeline valve instrument list (Domestic High-Quality Products)

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Heze Boiler FactoryLimited Company

Equipment Name: Natural Gas Storage Tank---Liquefied Natural Gas Storage Tank---Natural Gas Storage Tank (Function Introduction)

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Manufacturer:Heze Boiler FactoryLimited Company

This article analyzes the hazardous characteristics of low-temperature liquids and, in conjunction with various gas supply modes for low-temperature storage tanks, briefly outlines their basic requirements and key safety usage points.

An LNG storage tank is a jacketed vacuum powder-insulated pressure vessel specifically designed for storing and supplying low-temperature liquefied gases (such as liquid nitrogen, liquid oxygen, liquid argon, liquid carbon dioxide, etc.). It is widely used in industrial production and daily life.

1. Analysis of Low-Temperature Liquid Hazardous Characteristics

Low-temperature liquids possess hazardous characteristics such as lower boiling points, greater expansiveness, strong asphyxiating properties, and strong oxidizing properties.

1.1 Boiling points of low-temperature liquids at 101.3 KPa pressure: Liquid nitrogen at -196°C, liquid oxygen at -183°C, and liquid argon at -186°C. Contact with the human body can cause severe frostbite to the skin and eyes. In case of minor leakage or internal leakage in valves, they absorb heat from the surrounding environment, causing rapid condensation and frost formation at the leakage point, which can freeze severely.

Low-temperature Storage Tank

1.2 Low-temperature liquids absorb surrounding energy from high temperatures or large leaks, causing their volume to expand due to rapid vaporization. Under 0°C and 101.3 KPa pressure, the volume of gases resulting from the vaporization of 1L of low-temperature liquid is: nitrogen at 674L, oxygen at 800L, and argon at 780L. In closed containers or pipelines, the internal pressure can increase due to the vaporization of the low-temperature liquid, which is prone to cause overpressure explosions.

1.3 In the surrounding environment of low-temperature storage tanks, after the low-temperature liquid leaks and vaporizes, it is prone to form a rich gas area. If the concentrations of nitrogen, argon, or carbon dioxide are high, it can easily cause asphyxiation injuries. Additionally, high oxygen concentrations can also lead to oxygen-rich injuries.

1.4 Oxygen is a powerful oxidizer with strong oxidative properties. Liquid oxygen, when in close proximity to combustible materials, can easily ignite upon contact with an open flame; contact with combustible materials can lead to explosions due to vibrations or impacts; a mixture with combustible materials poses a potential explosive hazard. Liquid oxygen can adhere to clothing and fabrics, and can cause flash fires upon ignition, posing a risk to personal safety.

2. Low-Temperature Storage Tank Gas Supply Mode and Basic Requirements

According to the application and user requirements, the gas supply mode of low-temperature storage tanks is primarily...

We offer services such as high-pressure gas cylinder refilling, low-temperature insulated gas cylinder filling, centralized gas supply through pipelines, and low-temperature liquid spray supply.