Explosion protection with vent ducts: expensive and unproductive
The situation: Indoor plant equipment cannot be protected by explosion vents alone. The dusts and flames exiting the vessel pose an enormous threat both to the safety of employees and the plant itself. And secondary explosions resulting from the dust disturbed by the initial explosion are yet another concern. For this reason, vent ducts are often used to channel the pressure wave and flames from an explosion to an outdoor area.
The problem: This solution prevents process-optimized plant design. The longer the venting duct, the stronger the duct, and the enclosure itself, must be and the higher the associated costs. The reason: the greater the distance of the explosion from its source, the greater the pressure that the duct and the enclosure must withstand.
This section includes Flameless Vents from Rembe and IEP Technologies
The IV8 Flameless Explosion vent provides an explosion protection solution for process vessels which are located inside a building or areas where standard explosion venting cannot be safely employed. For these applications, flameless explosion vents may be the best protection solution. When an explosion occurs, the venting device opens and vents the explosion pressure and flame through a flame arrester, thereby cooling the hot gases and quenching the flame. The IV8 utilizes a stainless steel explosion relief vent and flame arresting mesh enclosed in a durable carbon steel coated frame. The integrated vent burst detection sensor allows plant personnel to respond accordingly in the event of an explosion within the protected application.
The EVN range of flameless vents are designed to quench the ejected flame front and relieve the pressure from a dust explosion. Offered in a range of styles each with an integrated flame arrester designed to provide flameless pressure relief. The revolutionary EVN range of flameless vents have a low-mass valve plate and low opening pressure. This flameless vent reacts within fractions of a second in the event of an explosion. Following an explosion, the valve plate closes and seals again, lowering the risk of post-explosion fires.
