National standards ensure the safety and stability of high-purity helium gas

Helium, high-purity helium

High purity helium is a colorless, odorless, and non-toxic gas that plays important roles in various fields, including but not limited to medical, high-purity, aviation, and scientific research. Due to its unique physical and chemical properties, the demand for high-purity helium gas is increasing, and national standards for its filling pressure and purity are particularly critical.

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Firstly, let's talk about the national standard for the filling pressure of 40% high-purity helium gas. According to national standards, the filling pressure for 40 liters of high-purity helium gas is 13.5 ± 0.5MPa. The formulation of this standard is to ensure the safety and stability of high-purity helium gas in various application scenarios. If the filling pressure is too low, it may lead to insufficient gas supply, affecting the normal operation of the equipment; If the filling pressure is too high, it may pose safety risks and even cause serious accidents such as explosions. Therefore, it is crucial to strictly comply with this national standard for filling pressure.

Next, let's focus on the purity standards for high-purity helium gas. According to the GB/T 4844-2011 standard, the purity of high-purity helium gas should not be less than 99.999%. Only high-purity helium gas with such high purity can ensure its optimal performance in application and will not have adverse effects on equipment. In actual production, the purity of high-purity helium gas is usually divided into three levels: high-quality helium content ≥ 99.9996%, first-class helium content ≥ 99.9993%, and qualified helium content ≥ 99.99%. These levels of settings are designed to meet the different needs of high-purity helium gas in various fields, ensuring that high-purity helium gas can achieve the best results in various application scenarios.

The widespread application of high-purity helium gas is due to its unique physical and chemical properties. Firstly, high-purity helium is an inert gas that does not easily react chemically with other substances, making it suitable for use as a protective gas in many fields. Secondly, the density of high-purity helium gas is very low, only 1/7 of that of air, which makes it widely used in the aviation field, such as filling balloons and airships. In addition, high-purity helium gas also has low thermal conductivity and high thermal stability, so it is widely used in scientific research and high-purity fields, such as in the manufacture of superconducting materials, semiconductor materials, etc.

In the medical field, high-purity helium gas also plays an important role. For example, in magnetic resonance imaging (MRI), high-purity helium gas is used as a coolant to help maintain the low temperature state of superconducting magnets, thereby ensuring the normal operation of MRI equipment. In addition, high-purity helium gas is also used for respiratory therapy to help patients alleviate symptoms such as breathing difficulties.

However, despite the widespread application of high-purity helium gas, its production is not an easy task. In order to obtain high-purity helium gas, multiple processes and strict quality control are required. Firstly, extracting high-purity helium from natural gas is a complex process that requires the use of special equipment and techniques. Then, high-purity helium gas is further purified through techniques such as distillation, adsorption, and membrane separation to meet the demand for high-purity helium gas in different fields.

Overall, high-purity helium gas, as an important high-purity gas, plays an irreplaceable role in multiple fields. The national standards for filling pressure and purity are important guarantees for ensuring its quality and safety. In the future development, with the advancement of technology and the growth of demand, the application fields of high-purity helium gas will continue to expand, and its production technology and quality standards will also continue to improve. We look forward to making more breakthroughs and progress in this field, and making greater contributions to the development of human society.

Wuhan Yisi Tuopu Technology Co., Ltd. specializes in the production and sales of high-purity helium gas, with a purity of up to 6N imported. There are multiple specifications to choose from, and we provide safety gas consultation and installation guidance. Please call 17371457003 for consultation.