Patent ID: 7765830

Claim:
An automatic discharge device for a lithium bromide absorption chiller, comprising an automatic pump apparatus having a pump chamber; a gas-liquid separation chamber; a liquid pump; and a gas storage chamber; wherein the pump chamber receives non-condensable gas from the chiller and transfers the non-condensable gas by means of liquid flow into the gas-liquid separation chamber; the gas-liquid separation chamber receives the non-condensable gas from the pump chamber, receives liquid from the gas storage chamber via a liquid return line, separates gas from liquid, and returns the liquid back to the chiller; the liquid pump pumps liquid from the chiller to the pump chamber and the gas storage chamber; the gas storage chamber receives gas from the gas-liquid separation chamber via a gas duct and receives liquid from the chiller via a liquid feed line; said gas-liquid separation chamber is connected to said gas storage chamber via the gas duct and the liquid return line, a first valve (F 1 ) is disposed at an outlet line of the liquid pump, a gas discharge and liquid feed line disposed between the liquid pump and the valve Fl is connected to said gas storage chamber, a second valve (F 2 ) is disposed on the discharge and liquid feed line, a third valve (F 3 ) is disposed on the gas duct and the liquid return line between the gas storage chamber and the gas-liquid separation chamber, a valve unit for discharging gas from gas storage chamber when the pressure in the gas storage chamber reaches a certain threshold is set on top of the gas storage chamber; closing the first valve and third valve and opening the second valve starts the liquid pump forcing the liquid into the gas storage chamber; and closing the second valve and opening the first valve and third valve F 1 causes the liquid in the gas storage chamber to fall back due to gravity.