Flameless Explosion Venting

The Future of Explosion Protection

11/26/2012 | Autor / Editor: Roland Bunse *, Johannes Lottermann **, Stefan Penno *** / Marcel Dröttboom

The Q-Rohr-3 indoor flameless explosion venting system is licensed according to all currently relevant guidelines.
The Q-Rohr-3 indoor flameless explosion venting system is licensed according to all currently relevant guidelines.

A new Norm establishes standardised requirements for all manufacturers of autonomous flameless explosion venting protection systems. The Rembe Q-Rohr has already been designed in a manner that fulfills all of the requirements of this norm. The application area of this device could even be extended to gases, hybrid mixtures and metal dust.

The new EN 16009:2011 "Flameless Explosion Venting Devices" has been in effect since October 2011. This norm establishes standardised requirements for all manufacturers in reference to construction and certification. EN 16009 applies to all autonomous flameless explosion venting protection systems. As the inventor of flameless explosion venting, the engineers at Rembe foresightedly designed the Q-Rohr (quenching mechanism with dust and flame retention for dust explosion venting) in a manner that fulfills all of the requirements of the EN 16009 in various inspection scenarios. The application area of this flameless venting device could even be extended to gases, hybrid mixtures and metal dust.

Rembe is the first manufacturer capable of providing the CE-Type Certification for the Q-Rohr-3, in accordance with EN 16009. The system is chiefly implemented for indoor flameless venting and during installation, cost-intensive venting ducts can be waived. Procedure-optimised installation within the immediate vicinity of people and machines is also an advantage, as is visual inspection without high-priced maintenance – a fact which has a significant effect on operating cost.

Functionality of the Q-Rohr

The flame gases reaching up to 1500 °C (2732 °F.) are extremely and efficiently cooled down through an energy transfer taking place in the special stainless steel mesh filter basket developed by Rembe. That leads to a reduction in discharging gas volumes and practically extinguishes the flame automatically. Additionally, the pressure rise and increased noise level associated with free vented explosions are massively reduced to negligible levels.

The specially developed filter ensures that no burnt or unburnt dust particles are discharged. The Q-Rohr-3 indoor explosion venting is the world’s only flameless venting system that is licensed according to all currently relevant guidelines, e.g. NFPA 68, VDI 3673, EN 16009 or EN 14797. After replacing the bursting disc and simple cleaning, the system is immediately ready for further operation.

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