Jones Engineering’s condition monitoring technicians on the Diageo site have been delivering results and reports based on thermographic surveys to clients at sites across Dublin since 2010. Using equipment such as the Fluke Ti25 thermal camera shown above, technicians are able to obtain an accurate measure of surface temperature and compare like-for-like equipment to identify abnormally hot (or cold) spots. Often these anomalous temperatures are an indication of a fault within the system and provide our customers with an early warning that corrective action may be required. Thermal images are routinely collected during surveys of machinery and systems, such as: rotating equipment, process pipework and electrical panels.
In the image (Image 1), a temperature differential of almost 50°C was picked-up across three supply cables. This indicates increased resistance in the hottest phase, which is most likely the result of a loose connection and, if left unchecked, may have resulted in a fire or equipment failure.
The images (Image 2) also display a like-for-like comparison between two afterburner cooling towers. The temperature seen in the image to the left is considered normal; whereas the higher temperature visible in the image to the right triggered an inspection, during which the tube bundle was discovered to be full of dust. Similar surveys can be used to identify degraded insulation and reduced wall thickness in pipework.
In the image to the left (Image 3), an alignment issue causes abnormal heating on both the motor side and the load side of the coupling. This type of fault may have gone undetected until the bearings at each end had failed, which could lead to costly downtime and equipment replacement/repair.
Through temperature differentials, infrared images can also provide an almost x-ray view of plant and equipment. The contents of the tank shown to the right (Image 4) are colder than the empty space above, allowing the level to be seen clearly from outside the tank.
Thermal imaging allows problems to be detected non-invasively, from a safe distance and before they may be identified by other means of inspection. Conducting routine and ad-hoc thermographic surveys at our clients’ sites is actively influencing preventative maintenance plans and helps prevent equipment failure and downtime. It also provides peace of mind where critical processes and machinery are confirmed to be working correctly and performing optimally.
It is clear that using this type of technology is saving time for both contractor and client by improving efficiencies on the Diageo site.
Can you see any opportunities where using this equipment could improve things for you?
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