Atmospheric storage tank heating - Direct injection
Atmospheric storage tank heating - Direct injection
(OP)
Are there any regulations prohibiting using direct injection of steam to heat an atmospheric storage (water) tank? The application is for a water storage tank for boiler feed water. The tank is outdoors and heating would be to offset ambient heat losses with the intent to maintain the tank at 40F to 50F. The tank is constructed to API 650 standards and currently doesn't have a coil. The tank would be vented properly to prevent overpressure but I am getting push back that if the tank froze then the lower portion of the tank would become over pressurized. I don't see this happening as the bottom of the tank would freeze first (convection). Any ideas or references would be appreciated.
Regards,
Chris
Regards,
Chris





RE: Atmospheric storage tank heating - Direct injection
One of the ways used to prevent freezing is to bubble air through the water, if that helps.,
RE: Atmospheric storage tank heating - Direct injection
RE: Atmospheric storage tank heating - Direct injection
The following device from Komax solved a number of our problems with direct steam injection heating of process fluids.
http://www.komax.com/det-shscepter.html
RE: Atmospheric storage tank heating - Direct injection
Explain why you cannot use a steam heating coil within the tank ....
http://w
Direct injection steam devices work well, but they are noisy and may cause vibration. Direct injection devices can heat a liquid very quickly for "on-demand" type applications....
Steam coils work well and gently, slowly heat the liquid
How often is the tank's liquid turned over ?
You are going to insulate this tank....right ?
- MJC
RE: Atmospheric storage tank heating - Direct injection
I've used this method on vegetable oils that harden at lower temperatures. And yes the pressures can create a very hazardous reults.
Another watch-out is steam condensing on the interior walls of a empty or partially empty tank. This will be the single largest vacuum hazard to the vessel, the vent here is CRITICAL.
RE: Atmospheric storage tank heating - Direct injection
Regards