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Water cooled flange used on Hot Blast Main Furnace

Water cooled flange used on Hot Blast Main Furnace

Water cooled flange used on Hot Blast Main Furnace

(OP)
Good day everybody...

I am a design engineer working for a company that manufactures expansion bellows units, I have received an enquiry for Hot Blast Main bellows for a furnace.  the inlet side of the unit will have standard ASA flanges while the outlet side they have specified using water cooled flanges.  I have seen a drawing of the unit with the flange on, it looks like a normal flange with a concentric chamber coming off the flange OD housing water, there is an inlet and outlet (BSP) fittings, the temperature is 150C yet this is inside the bellows... I have never come across a water cooled flange before I was just wondering what its used for and how it works and why its used.

Thanks for listening!!!
Mike

RE: Water cooled flange used on Hot Blast Main Furnace

When I worked a bit with semi-conductor equipment, we used cooled flanges and feed-throughs for sheer survival of the componentry.  Temperatures approached the melting point of silicon so you had to have a way of protecting the equipment.  Coolant circulated through the flange or feedthrough which was returned to an external chiller.  In this way an acceptable micro-environment could be maintained that kept componentry functional.

Hope this helped a little.

Regards,

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