Preventing thermal stress is the core objective for the operation and maintenance of oil fired boilers. Under optimal circumstances it is sufficient to follow the boiler maintenance plan, but in real life various factors may result in an unexpected boiler breakdown. In today’s shipping industry such machine failure is extremely costly and thus ought to be avoided. The SBS7xxx OFB Monitor provides the crew with a tool to secure the optimal maintenance of oil fired boilers using a continuous and dynamic monitoring device.

Oil fired boilers have an indirect control of the boiler function by controlling the water level (required by the class) and in some cases by monitoring the absolute outlet temperature of the flue gas. This provides very basic protection against a few immediate threats, but does not cover a number of other threats, such as

• Oil contamination
• Scale build-up
• Poor oil quality or burner adjustment

Crew failure in following the maintenance plan
These scenarios can develop into a severe reduction of heat exchange and thus thermal stress within the boiler. This might lead to attrition and leakage within the boiler or even a melt down.

The SBS7xxx OFB Monitor provides a continuous and dynamic monitoring of the key parameters within the boiler. The crew can thus get an early warning that indicates upcoming maintenance requirements long before problems can develop into threats. The key to this task is our patented dynamic stress monitoring depending on the boiler’s load.

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