Cooling measures for explosion-proof distribution cabinets
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Dear marine professionals, I’m sure everyone has encountered situations where low-voltage distribution cabinets need to be installed in high-temperature environments. If such cabinets contain heat-generating components such as frequency converters, or if they are located outdoors where temperatures are very high and cooling is necessary, I wonder what measures everyone uses to achieve cooling! ! Any seniors who know this could give some advice! One method I know is to install explosion-proof air conditioners outside the distribution cabinet; this does solve the problem of cooling, but the downside is that it increases the size of the distribution cabinet considerably. Explosion-proof distribution cabinets – an increase in size leads to a significant rise in costs! ! But I believe that there is more than one way to solve anything; let’s see if anyone has other better methods ? :):):) Please give me some advice! !
Heat pipe cooling can be considered, and it will definitely be smaller in size than an air conditioner.
We also use air conditioning to cool down. Could the use of water-cooled tubes be considered?
Design air ducts or use natural ventilation; air conditioning is also an option, as is water cooling – only leakage needs to be prevented.
Could it be changed to a positive-pressure type, with additional exhaust vents added? In that case, the energy consumption would be that of compressed air, which is much cheaper than using explosion-proof air conditioners, heating elements, and water cooling systems, right?
Positive pressure ventilation should also meet relevant requirements, but how to ensure the composition of the air source gas
It uses instrument purification air, so there definitely won’t be any problems. The positive-pressure type is sealed, while this one has an exhaust port added manually, simply to allow it to cool down
Positive pressure ventilation provides better heat dissipation, while explosion-proof air conditioners are more expensive. Sometimes we place the power distribution units in locations far away from explosion-proof areas, and only use explosion-proof control panels at the site; this way, there is no need for explosion protection, and ventilation for heat dissipation is possible directly.