Inerting
As inerting the addition of inert materials is as a gas (eg., Nitrogen, carbon dioxide, noble gases, water vapor) or powder respectively. The aim is to change the safety parameters of a mixture in order to prevent an explosive atmosphere. For this purpose, the oxygen concentration is brought below the oxygen limit concentration (SGK).
Inerting substances
The inertization of substances refers to their conversion or processing into inert ( inert ) substances. Inert substances are for example noble gases , glass , porcelain .
Inerting rooms
The inertization of rooms refers to the process of displacing atmospheric oxygen or reactive or explosive gases or gas mixtures from rooms by adding inert gases or vapors .
- In the case of inerting for fire and explosion protection (e.g. industry: chemical storage, production facilities, aircraft construction), the oxygen in the air is displaced by adding inert gas (e.g. argon , nitrogen , carbon dioxide ) so that an explosive atmosphere is avoided. In fire protection , this is also called active fire prevention through permanent inerting.
- By reducing the oxygen content of the air, the ripening process is e.g. B. slowed down by fruits , therefore, for example, overseas transport containers are equipped with an inerting system that inertizes it with nitrogen.
- The oxidation of wine during storage is prevented by reducing the oxygen content above the surface of the wine in the storage containers by inerting.
- Inerting can lead to an improvement in the quality of products during production, which is why oxygen is excluded in various processing processes, for example to prevent corrosion .
literature
- Roy Bergdoll, Sebastian Breitenbach: Die Roten Hefte, Issue 1 - Burning and Extinguishing . 18th edition. Kohlhammer, Stuttgart 2019, ISBN 978-3-17-026968-2 .
- Henrikus Steen (ed.): Manual of explosion protection. Wiley-VCH, Weinheim 2000, ISBN 978-3-5272-9848-8 .
- Henry Portz: Fire and Explosion Protection from AZ. Explanation of terms and fire protection characteristics, 1st edition, Friedrich Vieweg & Sohn Verlag, Wiesbaden 2005, ISBN 978-3-322-80198-2 .
Web links
- Less oxygen, more safety and quality (accessed on February 21, 2020)
- TRBS 2152 Part 2 / TRGS 722 Avoidance or restriction of hazardous explosive atmospheres (accessed on February 21, 2020)
- Inerting (accessed on February 21, 2020)
- Inerting with innovative ideas (accessed on February 21, 2020)
- Practical guide on how to proceed in the event of silo fires (accessed on February 21, 2020)
Individual evidence
- ↑ Inerting substances. The Chemistry School, October 9, 2011, accessed May 31, 2019 .