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[Chemical Knowledge]：Specification for storage and transport of helium

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In the field of chemical production raw materials, the safety of helium storage and transportation specifications

1. Introduction

Helium is a colorless, odorless, non-toxic and inactive rare gas, widely used in chemical, medical, scientific research and high-tech industries and other fields. In the field of chemical production raw materials, helium is usually used as a protective gas, carrier gas and reaction gas. In order to ensure the safe storage and transportation of helium, this article will detail the relevant specifications.

2. the physical and chemical properties of helium

Helium is an inert gas that does not readily react chemically with other elements or compounds. Its density is about 1/7 of air, the diffusion speed is fast, and it has good thermal conductivity and electrical insulation. Helium has a very low boiling point (-268.9°C) and exists in gaseous form at room temperature.

3. Helium Safety Storage Specification

1. Storage Facilities: Helium should be stored in a cool, dry, well-ventilated dedicated warehouse. The warehouse shall be kept away from open fire, heat source and direct sunlight, and have safety facilities such as explosion-proof, fire-proof and lightning-proof.
2. Storage container: Helium should be stored in special steel cylinders, which should comply with relevant national standards and be inspected and maintained regularly. Cylinder surface should be kept clean, no oil and damage.
3. Storage limit: The amount of stored helium should be determined according to production needs and warehouse conditions to ensure that it is within a safe range. At the same time, a large amount of helium should be avoided to prevent suffocation accidents.

4. helium safety transport specification

1. transport vehicles: helium should use special transport vehicles for transport, vehicles should be equipped with explosion-proof, fire prevention and leakage prevention and other safety facilities. In the process of transportation, it should keep running smoothly to avoid violent vibration and collision.
2. Transportation personnel: transportation personnel should be professionally trained and familiar with the nature of helium and transportation safety knowledge. In the process of transportation, we should be vigilant and deal with abnormal situations in time.
3. Transportation distance and time: The transportation distance and time should be determined according to the actual situation to ensure that the helium remains stable during transportation. During long-distance transportation, proper rest should be taken on the way to check the condition of vehicles and cylinders.

5. the safe use of helium

1. Pre-use inspection: Before using helium, cylinders, valves and piping should be inspected to ensure that they are intact. In case of air leakage, deformation and other abnormal conditions, it should be stopped immediately.
2. Monitoring during use: When using helium, there should be a special person to monitor and regularly check the pressure and flow of the cylinder. If found abnormal pressure drop or flow instability, should immediately stop using, inspection and maintenance.
3. Post-treatment after use: After using helium, the cylinder valve should be closed and the cylinder should be placed in a safe position. At the same time, clean up the use site to ensure that there is no residual gas leakage.

6. emergency treatment measures

1. Leakage treatment: When helium leakage is found, the cylinder valve should be closed immediately and the gas source should be cut off. At the same time, special equipment is used to recover the leaked helium to avoid gas diffusion.
2. Poisoning treatment: If a helium poisoning accident occurs, the patient should be immediately moved to a well-ventilated place and given oxygen inhalation. When the symptoms are serious, they should be sent to the doctor for treatment in time.

7. conclusion

helium has a wide range of application value in the field of chemical production raw materials, in order to ensure its safe storage and transportation, it is necessary to strictly abide by the relevant specifications. By strengthening the training of management and operators, improving safety awareness, ensuring the safe use of helium, and escorting chemical production.

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