HCL gas in a warehouse
HCL gas in a warehouse
(OP)
I have an interesting situation where I need to install an electronics box roughly 70ft above some HCL baths. I have no further information on the environment other than they have to replace their light fixtures often (less than 2 years) because of corrosion. The advantage is my box will operate cooler than the lights, but still "warm". 100C+.
I have uncoated aluminum (heat sink), Galvanized steel (box) and some zinc plated fasteners. I have little/no experience with HCL gas like this.
Any input (if possible) would be appreciated. We are trying to determine if our box can be expected to survive any length of time.
Thanks!
I have uncoated aluminum (heat sink), Galvanized steel (box) and some zinc plated fasteners. I have little/no experience with HCL gas like this.
Any input (if possible) would be appreciated. We are trying to determine if our box can be expected to survive any length of time.
Thanks!





RE: HCL gas in a warehouse
RE: HCL gas in a warehouse
RE: HCL gas in a warehouse
Your heatsink will be an issue, it will get eaten alive unless you coat it.
That will reduce heat transfer, but maybe go with a larger one?
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Plymouth Tube
RE: HCL gas in a warehouse
Completely cover the electronics with a conforma coating, an example is http://www.farnell.com/datasheets/1673864.pdf .
Note the coating will reduce the heat transfer of the heat sink, a couple of ideas:
- increase the heat sink size,
- add forced cooling.(Pipe nitrogen of compressed into the box and vent, keeping a positive pressure in the enclosure)
- possible nothing at all - monitor the temperature of the heat sink in operation if it stays below ____ (need to research). Pay attention to the signal to noise ratio, the signal level decreases with rising temperature.
Richard
RE: HCL gas in a warehouse
Silly customers :)
RE: HCL gas in a warehouse