SAFETY T
o assess the impact of boiler cleaning on plant operations, merely examining individual measurements often proves
insuff icient. Instead, various operational data
must be considered in conjunction, tailored to the specifi c plant operation mode and analysed eff iciently. This article explains how boiler cleaning expert, Explosion Power evaluates the temporal progression of plant operations using operational data and based on this assessment, formulates recommendations for the optimal operation of Shock Pulse Generators (SPG).
CREATING A BOILER MODEL Based on P&ID schematics and boiler drawings, Explosion Power creates a boiler model (digital twin). The boiler model documents how
the boiler is confi gured (type of tube bundles, arrangement of bundles, geometric details) and identifi es measurement points, which are essential for the operational data assessment. All operational data, which is shared
by the plant operator, is stored on an Explosion Power cloud platform where it is visualised and analysed in collaboration with the plant operator. The comprehensive and eff icient analysis of boiler operational data forms an essential foundation for the dialogue between the plant operator and Explosion Power. Based on this foundation, Explosion Power can do three things: 1) easily discuss the operational data, crucial for boiler operation; 2) present the results of the boiler cleaning transparently and
TAKING A PULSE Operational data can help formulate recommendations for Shock Pulse Generators
demonstrate the impact on the boiler’s operation in a comprehensible manner; 3) optimise the boiler cleaning with the collected data and insights.
APPLIED SCENARIO 1: HEAT EXCHANGE BUNDLES How does this help with boiler cleaning for heat exchanger bundles? When it comes
Increases in pressure drop can be avoided by increasing the cleaning power of SPGs
to heat exchanger bundles, in addition to heat transfer, the pressure drop of fl ue gases plays a signifi cant role. The illustration (left) refers to scenario 2 and demonstrates that unacceptable increases in pressure drop can be avoided
by temporarily increasing the cleaning power of the Shock Pulse Generators (SPG). In our boiler analysis, we can take into account, that pressure drop depends not only on fouling but also on the load.
APPLIED SCENARIO 2: HEATING SURFACES IN EMPTY PASSES An important objective for cleaning empty passes, is to limit the fl ue gas temperature at the inlet to the subsequent convection pass. Through our boiler analysis, we determine the cleaning intensity required to ensure the desired temperatures. Additionally, we can compare diff erent operating periods, for example, when a Shower Cleaning System (SCS) was replaced with Shock Pulse Generators (SPG). ●
For more information visit
https://www.explosionpower.ch/ en/
www.engineerlive.com 43
Shock Pulse Generator SPGr
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