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FeuerTRUTZ-International-2-2016

Planning and Concepts frames and containers in the petrochemical industry. This coating that only has a few millimetres (see figure 4) allows the boxes to have a very lean design that has proven to be a great advantage in operation on the system. The paths between the system parts that are narrow anyway are not obstructed by bulky fire protection boxes. This is also a benefit for the safety of the system employees (see figure 5). In case of fire, the coating expands to a multiple of its original volume and forms a stable highly insulating insulation foam. This even allows parts to withstand the extreme Jet-Fire scenario according to the extended furnace temperature curve. The area between the fittings was also protected. Many metres of pipeline were protected with a proven and tested system of non-flammable, highly heat resistant CMS fibre with a cover made of stainless steel. All work was carried out during running operation. Hydrocarbon coating on an epoxy resin basis Another very large part of the fire protection in the petrochemical sector are the coatings and coverings of steel components. In all locations where the structural stability is important in event of a fire, these systems are used. The main difference is carried out in the reactive and non-reactive systems. Reactive systems are coating systems that, in event of fire form a protective carbon layer or have sublimating properties that transfer direct from a solid to gaseous state when exposed to heat where they consume (heat) energy. These systems were develloped during the Apollo program of the NASA in order to protect the space capsule against the result of heat when reentering the atmosphere of the earth. The serious fire disaster on the oil platform Piper Alpha in 1988 resulted in decisive thoughts of adapting the safety standards in petrochemical plants. Today’s systems therefore have to pass various tests before they can be used. In addition to Pool-Fire tests, Jet-Fire tests with approx. 250 kW/m² and approx. 350 kW/m² are designated. Individual systems were tested for an explosion overpressure of more than 4 bar(g). Innovations in the sector of these systems in Europe usually come from Great Britain and Norway that dispose of extensive offshore facilities. Here, many kilometres away from mainland, the highest requirements exist at the same time. Fire protection coating based on epoxy resin are state of the art here. Besides excellent fire protection properties, resistance against climatic influences and the equally high protection of the steel structures against corrosion are the decisive factors for the selection of the system to be applied. A protection scenario of e.g. 180 minutes Pool-Fire and 60 minutes Jet-Fire are more the rule than the exception. This is different within petrochemical facilities onshore. The evacuation scenario is much more moderate here. System parts can usually be deactivated or shut down within a manageable period. Recreation rooms are located at a corresponding distance Fig. 4: System structure of the KAEFER ENERGY Firecover used at Peckensen to the systems. Employees generally only remain in the danger areas for maintenance or inspection tasks, and that being only for a short period. The danger potential is frequently limited to a Pool-Fire. Systems tested and certified according to ANSI/UL 1709 1 are predestinated for this application. The benefit of these products is the low coating thickness compared to completely tested systems. Epoxy systems in accordance with ANSI/ UL 1709 represent an economic alternative to systems on a cementicious basis. They were either applied on-site (generally during maintenance or with new versions or adoptions) or in-shop (for new buildings). The in-shop application (see figure 6) offers the benefit of continuous application conditions that are frequently only Fig. 5: Assembly of lean fire protection boxes at the gas storage facility Peckensen FeuerTRUTZ International 2.2016 7 ❯❯


FeuerTRUTZ-International-2-2016
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