Email Enquiry

 

Fire Mist, New Technology Fire Fighting System

Initial Email Enquiry –

fire mist pic

This innovative design is in developmental stage for the membership to view. Not sure how effective it will be - I have trailed the IFEX atomised water systems using 'pulse technology' many years ago. this gave very good control and extinction of small compartment fires, however, on Class B fluids failed miserably. The introduction of a 'wet water' foam solution gave marginal improvements. The same size tray and pump fires were more easily dealt with by a conventional 9kg Dry Chemical Extinguisher.

I can see that the continuous development and delivery of the atomised water steam and water has advantages over the pulse technology - it will provide a diluents effect as well as cooling and smothering. Other systems which have been developed along these lines are the infamous 'Turbo Locscher' from BASF Ludwigshaven. The uses of these have been for rapid gas dispersion as well as a niche for 'tunnel fires'. I guess the advantages that this system has over the others is that it allows for the introduction of multiple agent uninterrupted. Any views which may help the developers when considering this for High Hazard installations?

The main points:

Continuous flow, Droplet size is adjustable, currently running around 40 microns with little divergence, Water flow rate is adjustable. Delivery cone is adjustable for spot or area suppression, currently around 50 degrees. We have recorded projection distances >40 metres with a 47 mm system in calm conditions. Volumes and projection distances of mist are higher than those available from conventional systems. Although steam is used, temperature drop-off is such that there is no danger of scalding. Steam can be generated chemically for fixed or remote applications. Mist volumes are high enough to consider explosion and fire suppression in large buildings and factories, utilising a single, or multiple, PDX units We have a number of sizes of units (13, 25, 47, 63 mm), which can all be adapted for water mist generation The system is intrinsically safe The system uses the low-pressure zone created by the unit to entrain powders or liquids if required

The "delivery end" of the system is man-portable. The system has no moving parts/low maintenance requirements. The system can use unfiltered fresh or sea water Our present system utilises a trailerised steam generator. Background on Pursuit Dynamics is available on www.pursuitdynamics.com We would be happy to demonstrate the system to you either here or at your site.

Click here to view technical memorandum on Fire Mist as a new technology fire fighting System.


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