Keeping Things Cool in a Steel Plant

High Temperature Cabinet Cooler

Taking measurements in a manufacturing process can be a vital component to quality control.  If deviation from the desired process is recognized during production, it can save not only a headache later, but lost profit.

When a large steel plant in India began to experience overheating problems in their line scanner (which measures the steel on a belt 3 meters below and scans for undesirables), they contacted EXAIR.

This scenario is typical for an application with an overheating condition.  However, this application was a bit unique in that the temperatures involved were very high – at times approaching 200C.  Such a high application temperature poses some challenges for most any other cooling solution, but a vortex tube based product like our EXAIR Cabinet Cooler systems provided a solution for this challenge. Our High Temperature units are built for high ambient temperature environments like this one, and with the proper information and calculations can be effective. In this case, the application had two things keeping an EXAIR solution possible – a small enclosure, and the need for a relatively small temperature differential.

The end user in this application was clear that the Cabinet Cooler didn’t need to provide drastic cooling, it simply needed to lower the cabinet temperature enough that overheating conditions for their line scanner were resolved.

In calculating the heat load using the information provided in a Cabinet Cooler Sizing Guide, we determined the application, in the absolute maximum condition, may require only a few hundred BTU/hr. of cooling. Considering the high ambient temperatures, elevated compressed air temperature and other heat related factors, model HT4640 was recommended to keep their production in operation.

Even though the numbers lined up, I still felt there were stones left unturned regarding the high temperature of the application.  After checking how the variables will effect cooling capacity, and confirming the temperature range of each component in the HT4640 Cabinet Cooler, I felt better.  In this case, the customer was kind enough to let us know the installation was working well and even provided us a picture of the new sensor box installation.  Even though we understand our products provide solutions and keep production up and running, it is always nice to receive feedback after the solution has been implemented.

Cabinet Cooler in steel mill

Another problem solved by EXAIR.

Lee Evans
Application Engineer

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