luni, 3 octombrie 2011

The choice of ventilation systems

Hello dear readers!

Chapter II

Natural ventilation organized

General ventilation to evacuate the gases, vapors and smoke, unless the release of these substances is accompanied by major releases heat into the work area to ensure traffic on the natural circulation of air flow necessary for the entire period year, the concentration considered working days, evacuation, natural ventilation, organized by harmful substances is permitted only if the elimination of this substance directly into the atmosphere.
For exhaust general ventilation, gases and smoke in the rooms with the pressure created by mechanical air intake fresh intalatii in terms of protecting the environment.


Mechanical Ventilation

Mechanical ventilation is used for smoke and hot gases produced in fire, with ventilation systems.
The release of hazardous rooms in which direct air entering from the outside can not adversely affect air quality and ventilation is required only when it is hot, be provided only for the cleaners of the facilities, the compensation will be made with fresh air coming through the windows or other objects designed.
Terms of fire and explosion prevention
It is not permitted under any circumstances, the adoption of common ventilation systems for more space is mixed with substances that can cause ignition or chemical mechanical combination or explosion.
It is not permitted under any circumstance connected installations in category A, B, C fire risk in the ventilation of the rooms in the categories D and E. The danger of fire. Rooms where flammable substances stored or processed, located in residential and public buildings will be equipped with separate ventilation systems.
Vent connection Shops, restaurants and garages in the general ventilation purposes other rooms is prohibited. In particularly dangerous areas, and to block or reinforced buildings in categories A, B, C fire hazard, ventilation will lock in case of fire and termination of signaling. Buffer separate rooms classrooms Room A and B fire or other spaces with stations in categories C, D or E will have separate facilities for the introduction of fresh air to keep the rooms in a buffer of constant pressure rooms Category A and B. Clean air can be brought from outside is heated in cold weather, or in rooms without releasing harmful substances. The same measures are adopted in case of buffer room that separates the rooms clean rooms with very toxic versions.

A good day to all!

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