120Fornovo ha scritto:Complimenti!
Disegno esplicativo con le frecce azzurre (aria pulita o da depurare NBC) e rosse (aria viziata).
In effetti, il punto 6 mi è oscuro. Cosa sarà mai?
A Caspar, autore del disegno originale, l'ardua sentenza.
Per il "sezionamento" dei settori c'erano apposite valvole.
Il punto 2, in effetti, è uno scarico di condensa.
Il ventilatore, al ripristino post guerra, fu in alcune opere adeguatamente "motorizzato".
Caspar, where are you?
First of all I have to admit that I am not really the author of the original. In fact I have redrawn a scheme I had seen in "L'Opera in Caverna del Vallo Alpino". I have to note that normally the ventilators were powered by a 300W motor (Provided that the opera had a generator).
No. 6 are the sensors which were supposed to detect the presence of gas. However what I have understood from a conversation with Pier Giorgio Corino only the large opere had equipment to detect poison gas. In the other cases I suppose that they used the same system as we did in Holland after the war: when the first guy drops dead put on the filter.
It is interesting to note that the ventilatio included a system to regenerate air. They contained a mixture of "idrato sodico e pottassico". This absorbed the carbon in the CO2, thereby releasing the oxygen.
Although the ventilation system seems impressive on paper, the real results could be different. During the fighting in June 1940 there were numerous complaints of firing chambers that became unuseable because of the fumes caused by the weapons.
I also have a question for you: in the command post at Monte San Michele I have noticed a ventilator with German istructions on it. Have you noticed this in other positions and why have the instructions not been translated?
All the best,
Caspar