 Dr. Gerd Mayer Rembe, Inc. President Visit Website |
Dr. Gerd Mayer is President of REMBE, INC., US subsidiary of Rembe®, GMBH, a quality consulting, engineering and safety technology manufacturer, selling top notch explosion protection, process safety and measurement products. Dr. Mayer is involved with every application of REMBE® products in the US market, including evaluation and engineering of every project. His hands-on approach has resulted in a depth of experience with combustible dust explosion prevention, protection and applications that is vital to industry and clients. Dr. Mayer has doctorate in Process Engineering as well as an Engineering degree, and has worked in a number of industries in the US and abroad. REMBE®, GMBH manufactures a number of innovative explosion protection and process safety products, including flameless indoor venting systems, and custom application rupture discs. They are also a member of the committee for NFPA 69.
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Explosion Venting/Suppression Q&A
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I have a dust collector that allows water to enter through the current explosion venting panels. The current panels ‘hang’ in place, utilizing the vacuum within the dust collector to seal the panel to the vessel. I’ve witnessed that during a change in the vacuum, mainly due to the pulse-jets firing, the panels swing open. The two panels pivot and hang from their top edge, and are easily removed by simply lifting up from the bottom edge. The pivot point is merely a hook design. I would like to inquire about the feasibility and practicality of installing fixed, sealed panels that act like a rupture disc as my explosion venting device. I feel this would prevent water from entering the vessel, but would a retro-fit design of this type allow proper venting during an explosion?Answered May 20th, 2011 by Expert:Explosion venting panels on a dust collector should be sealed so that there is no water entering the dust collector or dust escaping. If there is any type of premature opening due to pressure pulses/low vacuum in the dust collector, then an incorrect panel was used for the application.
You can certainly retro-fit the proper explosion venting panels to protect your dust collector. The vent area would need to be calculated so that the panel would open only when the pressure inside the dust collector exceeded the Pstat pressure, that is, the pressure at which the panel is designed to open in the event of a developing explosion (usually .1 barg).