Before the production of explosion-proof doors, the explosion pressure, the duration of the explosion and the type of explosion must be known. Door design is prepared according to the determined parameters and explosion analysis is made. Explosion proof doors must be designed according to UFC 3-3403-02. The purpose of this publication; To present design methods for protective structures used at facilities for the development, testing, manufacture, storage, maintenance, replacement, inspection, disarming and destruction of explosives. Otherwise, the door cannot perform its duty of protection under the specified explosion loads due to design errors. In these cases, with the explosion that will occur, sad consequences such as loss of life and property may occur.
In addition, along with the explosion-proof design, the anchor designs are also of great importance. Poorly made anchor designs cause the door to dislodge during the explosion and fail to do its job. Special anchor designs should be prepared according to the specified burst loads and the door.
With its products, Hardshield prepares and delivers the explosion design, analysis, report and special anchor designs in a package. Explosion-proof doors should be considered as a complex system rather than a product like normal doors.
Explosion proof doors are designed to withstand a very short duration (expressed in milliseconds) high pressure that expands outward from the center of the explosion. The intensity of the pressures decreases with distance. However, there are some exceptions, such as nuclear explosions. Nuclear explosions also have long duration (in seconds) explosions and fires. When an explosion occurs, there is a violent release of energy in a gaseous medium. This causes a sudden pressure increase in that environment. The pressure disturbance is called a "blast wave". After the blast wave reaches the door, it disperses on the surface. These usually consist of:
- Explosive type and energy output,
- distance of the explosive,
- blast wave pressure,
- The interaction of the door with the structure or ground on which it is installed.
You can always contact us if you want to know more about explosion proof doors.