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NEWS REMBE®

 

The success of REMBE® Asia Pacific is a great example of the popularity of German safety products worldwide. To make sure that our Asian customers fully benefit from our holistic approach Consulting. Engineering. Products. Service., REMBE® Asia Pacific was founded in 2009 and has been growing year by year.

Such growth not only in turnover but also in people means more space was needed! The team recently moved into bigger state of the art premises.  The whole REMBE® family sends their congratulations to our colleagues in Singapore – Keep going, you are doing a great job!

In the November episode of the Dust Safety Science podcast, Jeramy Slaunwhite, Explosion Safety Engineering Consultant at REMBE® Inc., shares his extensive knowledge from material handling and ventilation systems, to government safety and education, and to evaluating fire and explosion hazards in industrial facilities. Jeramy has a rare background which covers a broad spectrum that gives him an interesting vantage point that is not typically available in the combustible dust safety community.

 

Read more dustsafetyscience.com/nova-scotia-dust-collector-safety-program-jeramny-slaunwhite/

A graphite rupture disc that is setting new standards in terms of durability - also with regard to the application temperature. A rupture signalling device that is unbeatable in terms of process leak-tightness, as well as a combination of REMBE® rupture discs and safety valves, which is becoming increasingly popular especially in the chemical industry: these are our ACHEMA highlights. "At this year's ACHEMA trade fair booth, visitors will get closer to our products and solutions than ever before", promises Orhan Karagöz (responsible for the Pressure Relief division) and Dr.-Ing. Stefan Rüsenberg (Teamleader Technical Sales).

Michael Hüske, Sales Manager Germany, is especially looking forward to introducing the NIMU to the visitors. It's not the first non-invasive signalling device for rupture discs, but the latest and therefore state-of-the-art technology.

Conventional signalling devices require cables to be mounted on the rupture disc, which must then be routed out through the rupture disc holder. This is not the case with the NIMU. Here, a signal indicator is attached to the rupture disc during the manufacturing process. The actual sensor is screwed into a blind tapping in the rupture disc holder, where it monitors the position of the signal indicator on the rupture disc. This means that the wiring only starts outside the rupture disc holder.

The system is leak-proof, and back in operation quicker

After an overpressure event, and the associated opening of the rupture disc, the outlet part of the rupture disc holder must be removed, the rupture disc replaced, and afterwards the system can be put back into operation. The days when the signalling cables also had to be routed again to the respective switching box are finally over. This allows colleagues from the electrical department to devote their attention to other tasks.

Additionally: The process is absolutely leak-tight. The blind tapping in the holder replaces the tapping which is usually required. The absence of cable glands (required for the holder tappings for conventional signalling cables) means that the cable glands used cannot become porous, thus preventing an escape of the process media.

 

                              

NIMU, the non-invasive signalling: Sensor in a blind tapping in the rupture disc holder, and signal indicator on the rupture disc.

 

 

 

 

 

 

 

When the KUB® rupture disc opens, the NIMU sensor will output information to the process control unit of the system.

 

 

GRX® - cool and hot

If the process temperature is between -180 °C and 1,500 °C, the process involves corrosive media, and the rupture disc must already respond at a relatively low pressure, then the REMBE® graphite rupture disc GRX® is ideally suited to relieve the pressure. Thanks to a specially developed coating, the GRX® does not require polymeric sealants, and is able to withstand the aforementioned demanding process conditions, while still guaranteeing absolute leak-tightness. This in turn reduces the emissions of the system.

 

 

 

 

 

 

 

REMBE® graphite rupture disc GRX®

 

We are looking forward to meeting you at ACHEMA (11.06.-15.06.2018) in hall 9.1 booth C4.

 

 

 

The CSE Institute, under the leadership of Professor Jürgen Schmidt, will support your operations as an independent consultant - from safety-related observations, risk as well as the worst-case scenario analysis, through to the assessment of existing safety concepts, all the way up to the design and dimensioning of equipment parts with safety functions (including safety fittings). The cooperation between REMBE® and CSE has been active for several years and you can therefore rest assured that REMBE® will implement exactly the results and recommended actions from CSE.

REMBE® and CSE will also provide you with support for the design of your process. The CSE Sizing Service will calculate and determine the ideal safety concept for your system. As a solution, you will be provided with a design and evaluation of the safety devices, as well as customized and customer-specific safety reports or expert opinions. REMBE® will provide you with precisely the right products and support, if necessary, as well as installation and maintenance.

In the event that new systems are created, or the development of a new building or system parts, component tests and the associated certifications will be essential. CSE Engineering and REMBE® will conduct these tests and certifications for you, determine the necessary safety-related characteristic values and, if necessary, carry out the fluid examinations. For this purpose, the REMBE® engineers from the team of Dr. Stefan Rüsenberg, the employees of CSE, as well as other well-known companies in the industry have developed a unique test circuit that enables measurements at pressures of up to 3,400 bar and more.

You can benefit from the REMBE® & CSE cooperation and work with the crème de la crème of the German process safety industry! For optimum system safety, reliable pressure relief, and minimal downtime!

 

For more information on CSE Engineering, please visit http://cse-engineering.de/

 

Do you have a specific concern? Contact the right contact person directly:

Dr. Stefan Rüsenberg

stefan.ruesenberg@rembe.de, Tel. +49 2961 7405-148

 

Prof. Jürgen Schmidt

juergen.schmidt@cse-institut.de, Tel. +49 721 6699 4780

 

If the encounter of hazardous atmospheres with ignition sources cannot be prevented, the explosion protection remains as the only reasonable protection measure for operators. Even if this presumably only the third-best alternative, numerous applications have proven the contrary, because the prevention of explosive atmospheres as well as ignition sources, is often associated with an enormous burden. This applies to the construction of the plant, as well as for the costs of the plant operation.

If explosion protection is possible for gas applications, as of now this can be performed through a flameless pressure relief. ATEX certified and made in Germany.

The original of the flameless venting devices, the Q-Rohr®, is now certified for gas explosions. Originally developed for organic dusts, it has also been approved for different types of metal dusts, dual-fuel and gas engines for some time. In the field of gas applications, a broad range of plants in the chemical industry, as well as various test rigs have already been equipped with the Q-Rohr®.

Roland Bunse, responsible for new applications and upgrading (further) development of the Q-Rohr® since the 1990s: "The Q-Rohr® can be used anywhere, where gas-air mixtures could enable an explosion. This is the case in many industries and factories, whereas test benches are only one example thereof. I am looking forward to the upcoming inquiries - of which there are several interesting challenges currently available with very different applications, which we can all protect with the Q-Rohr®."

The Q-Rohr® consists of a explosion vent with a burst indicator, as well as a stainless-steel mesh filter.  In case of an explosion the explosion vent of the Q-Rohr® will open, the inserted special mesh filter will efficiently cool down the flames of the explosion and reduce any escaping pressure to a safe minimum. System and environment are therefore ideally protected.

REMBE® is pleased to announce that Jan Cleijne has joined the company to strengthen the existing team of Senior Consultants in Explosion Safety and provide support to REMBE®’s growing portfolio of international customers.

Jan Cleijne comes with a wealth of experience, having spent more than 22 years in the Explosion Safety Industry.  As well as bringing extensive industry knowledge, Jan is formally certified for Dust Explosion Prevention and Limiting Systems, as an expert in investigating Dust Explosions and in the IECEx Certificate of Personnel Competence.

“I am very excited to progress to a higher level of dust explosion safety with REMBE® and I am looking forward to working with some major global players. I am fortunate to be joining such a respected team of experts and a company which prides itself on its quality engineering solutions”

Dr Johannes Lottermann, Director of Explosion Safety said “Jan’s many years of experience makes him a key addition to the REMBE® family.  He is the perfect fit in adherence with our motto of Consulting.  Engineering.  Products.  Service.  I’m extremely pleased that we were able to find someone of Jan’s calibre to join our team and I’m confident he will play a key role in supporting our customers worldwide”

Jan Cleijne will focus on Explosion Safety Projects for spray dryers, food, biomass, brewing and wood working industries in the BENELUX area and worldwide.

REMBE® GmbH has signed an agreement with Gronbech & Sonner A / S as the new representative of REMBE® products and services in Denmark.

Gronbech & Sonner already represents some leading high quality manufacturers, mainly from elsewhere in Europe and REMBE® is a good fit for their product portfolio. Their approach of creating value for their customers - not just by providing quality components, but also safe and sustainable solutions goes together with Consulting. Engineering. Products.  Service. 
 
A good match

Jens Bang Holmgaard, sales manager at Gronbech & Sonner, says “we have long been looking for a partner in this area and when REMBE® was open for cooperation, the rest was just details. The two companies' values ​​are close to each other and our initial conversations around how we will serve the Danish market have gone really well”

"In Gronbech & Sonner we feel that we have a partner that can handle the job and already has an advantageous position in the markets and industries we cater to," continues Claire Lloyd, Business Development, Europe, from REMBE®.

"Training of staff at Gronbech & Sonner is already well under way and the organization has already shown a great deal of commitment that bodes well for cooperation in the future.  We are looking forward to a close collaboration in 2017" concludes Claire Lloyd.

If you want to know more about REMBE® products in Denmark please contact Morten Rasch on mra@g-s.dk or + 45 33266328

The correct selection of suppliers is particularly crucial for safety-relevant system components. A good selection criteria are certifications from independent bodies such as the DEKRA. Around 20 REMBE® engineers have currently been personally certified in explosion safety by this organization.

The successful passing of the final exam confirms the extensive experience and in-depth knowledge of all the participants regarding the (explosion) protection of industrial systems. Dr. Johannes Lottermann, Head of Explosion Safety: "To simply sell products is not the key goal in the field of explosion safety. In adherence with our motto “Consulting. Engineering. Products. Service.” we support our customers in every project stage. And to prove our superior performance capability, we had it officially confirmed with the IECEx Certificate.” Congratulation to our colleagues!

In a production facility the individual parts of the plant are always connected by pipelines. The purpose of explosion isolation is to ensure that the pressure and the flames cannot propagate and so that any adjoining parts of the plant are protected. A distinction is made between active and passive isolation systems.

An active system is alerted to an explosion at an early stage, when an explosion begins to develop. This is done through sensors or detectors which register the rise in pressure or the formation of flames and respond by activating the relevant isolator, e.g. a quench valve.

Passive isolation, on the other hand, responds purely mechanically to the spreading or loss of pressure, on account of its structural characteristics. This also applies to explosion valves. Under normal operation an explosion valve in a pipeline is kept open by the available flow. When an explosion occurs, the valve is closed by the spreading of the pressure front, thus effectively preventing the pressure and the flames from propagating any further.

In addition to the method mentioned so far, another constructional precaution is explosion suppression. It means eliminating the explosion at its very onset. This is made possible by detectors which register the presence of sparks or flames through sensors and immediately trigger the opening of tanks containing an extinguishing agent (also installed in the system). A highly effective extinguishing agent is released within milliseconds, nipping the explosion in the bud straightaway. If required, an explosion suppression system can also be used for explosion isolation purposes.

Having received the class certificate from Lloyd’s Register, the Q-Rohr® DFE has successfully passed its fourth class certificate. Special suitability of the explosion protection system for LNG and dual-fuel engines has also been confirmed by DNV-GL, Bureau Veritas and ABS (American Bureau of Shipping).

Gas-powered engines and the connected exhaust system for marine propulsion and power generation carry a major risk of explosion. This may be caused, among other things, by possible misfiring whereby a combustible gas-oxygen mix may reach the exhaust system. Sources of ignition mostly include hot surfaces in pipelines, turbochargers or glowing (soot) particles in the exhaust gas flow. When an explosive gas mixture meets with a source of ignition, there is the risk that pressure and flames will spread very quickly within the pipeline sections, thus usually causing damage or even uncontrolled destruction on components. This risk can lead to loss of manoeuvrability, devastating injuries and maritime distress.

The Q-Rohr® DFE is installed on the exhaust system of an engine. If an explosion occurs, it protects the engine through flameless venting technology. This reduces unacceptable overpressure, while the stainless steel mesh filter of the Q-Rohr® DFE absorbs the heat of the explosion. As a result, the explosion collapses, so that there is neither a strong shockwave nor flames. Pressure is safely relieved within the exhaust system, which remains intact. The engine room, too, receives maximum protection.

One benefit that is particularly important for ship operators is that, after an incident, the explosion vent in the Q-Rohr® DFE can simply be replaced and operation can be resumed.

Further product benefits

  • 100% seal tightness to eliminate danger of asphyxiation.
  • Compact, lightweight design and therefore suitable for installation within limited space
  • Connection flange in accordance DIN 86044
  • Corrosion-resistant: 100% stainless steel
  • Substantial noise reduction, even under normal operation


“Working together with the classification societies, we classified the Q-Rohr® DFE under major explosion volumes with stoichiometrically optimal gas concentrations and a variety of response pressures. This included simulating some worst-case scenarios, and the Q-Rohr® DFE passed all the tests with flying colours. The vessels equipped with the Q-Rohr® DFE include a purely LNG-based German ferry and several DFE-based container ships. Other projects are in progress,” says Roland Bunse, Q-Rohr® DFE developer and Senior Consultant in Explosion Safety

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