How to Make the Optimal Use of Scheduled Plant Downtime

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DÜPERTHAL Sicherheitstechnik GmbH & Co. KG

Rösberg Engineering Ingenieurgesellschaft mbH für Automation

For steam generation two independent flue gas flows are used, which are discharged through one stack. Thus in principle the AHK plant consists of two spatially separate units: One unit (AHK 1) is a new, freestanding construction; the other (AHK 2) is integrated into the already-existing steel construction of the previous incinerator. The two units are interconnected by pipes. The flue gas initially deposits dust on the heat exchanger assemblies in AHK 1, which therefore has to be cleaned using a shot cleaning system during normal operation of the plant. The loosened fly ash collects in the funnels below the heat recovery steam generators, and is removed.

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DOCUMENTATION MADE EASY

The more up-to-date the plant documentation, the more effective is the work of the plant personnel. Livedok has been specially developed and tailored to the processes and requirements of plant operation and support. Using this system, plants can be documented electronically, meaning that making tedious multiple changes to paper documentation, and time-consuming hunts for documents, becomes a thing of the past. Livedok supports the complete life cycle of documentation, from document generation to comfortable use and the revision of the changed documents, and is also suitable for use on mobile devices.

The Livedok Browser makes it a child’s play of navigation and searches in an electronic filing system. It also makes it easy to change documents using intuitive, high-performance tools. The redlining options range from handwritten entries, through text marking and strikethrough, to dynamic stamping and much more.

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Rösberg took on the complete I&C engineering for the heat recovery plant including cabling and wiring of the c. 150 measuring points and software for the safety controls used, with the stipulated safety functions. The safetyrelated control system is connected redundantly via Modbus with the Honeywell control system which is used throughout the works.

Once again, the I&C-CAE system ProDOK did good service during planning, loop-checks and commissioning, and changes were documented with Livedok – so of course, constantly updated as-built documentation is available for the new plant, too, at all times.

* The author is Project Engineer at Rösberg Engineering

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How to Make the Optimal Use of Scheduled Plant Downtime

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