US 11,835,276 B2
Purge system for chiller system
Zidu Ma, Ellington, CT (US); Ivan Rydkin, Rochester, NY (US); and Warren Clough, Cicero, NY (US)
Assigned to CARRIER CORPORATION, Palm Beach Gardens, FL (US)
Filed by Carrier Corporation, Palm Beach Gardens, FL (US)
Filed on Jul. 28, 2021, as Appl. No. 17/386,878.
Application 17/386,878 is a continuation of application No. 16/095,069, granted, now 11,105,545, previously published as PCT/US2017/028235, filed on Apr. 19, 2017.
Claims priority of provisional application 62/324,667, filed on Apr. 19, 2016.
Prior Publication US 2021/0356184 A1, Nov. 18, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. F25B 43/04 (2006.01); F25B 45/00 (2006.01)
CPC F25B 43/043 (2013.01) [F25B 45/00 (2013.01); F25B 2345/002 (2013.01); F25B 2345/003 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A purge system for removing non-condensables from a chiller system, the purge system comprising:
a purge chamber;
a plurality of carbon beds fluidly connected to the purge chamber into which a flow of refrigerant and non-condensables is selectably directed from the purge chamber to remove the non-condensables therefrom;
a vent line fluidly connected to the plurality of carbon beds to dispose of the collected non-condensables;
a heater operably connected to the plurality of carbon beds to selectably heat one or more of the carbon beds of the plurality of carbon beds to release refrigerant therefrom and direct the released refrigerant to the purge chamber; and
a sensor to detect presence of refrigerant in the vent line;
wherein the sensor is positioned along a fluid path between a first carbon bed of the plurality of carbon beds and a second carbon bed of the plurality of carbon beds; and
wherein when the sensor detects the presence of refrigerant, flow is moved from the first carbon bed through the second carbon bed and to the purge chamber.