The Precision Boilers BD blowdown tank is used where there is ample space for a large tank to collect and hold boiler blowdown. The effluent sits in the tank until it has cooled below 140°F, and then it’s released into the facility drain. The portion of blowdown that flashes to steam can either be vented to atmosphere or recovered for use in preheating boiler feedwater.
Features & Benefits
Standard blowdown tank design pressure is 50 psi; the tank’s vent is sized to limit the vessel pressure to 5 psi
Boiler blowdown enters the vessel’s lower-pressure environment, where approx. 30% flashes to steam and then flows out the tank’s vent
Blowdown can be piped so that its latent heat is recovered and used to preheat boiler feedwater
Blowdown effluent is stored until its temperature falls below 140°F and a temperature controlled, self-operating valve opens to drain the tank
Most commonly used where there is ample space for a large tank.