Explosion protection

From Wikipedia, the free encyclopedia

Explosion protection is utilized to protect industrial assets against explosions or deflagrations.

Contents 1 Techniques of explosion protection 1.1 Avoidance 1.2 Constructional Explosion protection 2 Explosion Protection Method Selection 3 See also 4 External links

[edit] Techniques of explosion protection

[edit] Avoidance

Avoidance will make it impossible for an explosion or deflagration to occur, for instance by means of consistent displacement of the O₂ necessary for an explosion or deflagration to take place, by means of padding gas (f. i. CO₂ or N₂), or, by means of keeping the concentration of inflammable content of an atmosphere consistently below or above the explosive limit, or, by means of consistent elimination of ignition sources.

[edit] Constructional Explosion protection

Constructional Explosion protection aims at pre-defined, limited or zero damage that results from applied protective techniques in combination with reinforcement of the equipment or structures that must be expected to become subject to internal explosion pressure.

[edit] Explosion Protection Method Selection

The Technology of Protection can range in price dramatically but where the type of device is rational to use, would typically be from least to most expensive solutions: explosion doors and vents (dependent on quantities and common denominators, either may end up the wise price choice); inerting: explosion suppression; isolation – or combinations of same. To focus on the most cost effective, doors typically have lower release pressure capabilities; are not susceptible to fatigue failures or subject to changing release pressures with changes in temperature, as “rupture membrane” type are; capable of leak tight service; service temperatures of up to 2,000°F; and can be more cost effective in small quantities. Rupture membrane type vents can provide a leak tight seal more readily in most cases; have a relatively broad tolerance on their release pressure and are more readily incorporated into systems with discharge ducts.

There are several fundamental considerations in the review of a system handling potentially explosive dusts, gases or a mixture of the two. Dependent upon the design basis being used, often National Fire Protection Association Guideline 68, the definition of these may vary somewhat. To facilitate providing the reader with an appreciation of the issues rather than a design primer, the following have been limited to the major ones only.

[edit] See also

• Explosion pressure
• pressure damper
• blast shield
• pressure relief valve
• Explosives safety
• explosion vent

[edit] External links

Explosion Protection Techniques

This article does not cite any references or sources. (March 2007) Please help improve this article by adding citations to reliable sources. Unverifiable material may be challenged and removed.