US 11,725,856 B2
Refrigerant processing unit, a method for evaporating a refrigerant and use of a refrigerant processing unit
Simon Stubkier, Silkeborg (DK); Per Skov, Mårslet (DK); Morten Dremark-Larsen, Silkeborg (DK); and Christian Per Bunde-Pedersen, Højbjerg (DK)
Assigned to Johnson Controls Denmark ApS, Højbjerg (DK)
Filed by Johnson Controls Denmark ApS, Højbjerg (DK)
Filed on Jan. 14, 2022, as Appl. No. 17/576,685.
Prior Publication US 2022/0228781 A1, Jul. 21, 2022
Int. Cl. F25B 39/00 (2006.01); F25B 40/06 (2006.01); F25B 39/02 (2006.01)
CPC F25B 39/00 (2013.01) [F25B 40/06 (2013.01); F25B 39/02 (2013.01); F25B 2339/024 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A refrigerant processing unit for evaporating a refrigerant, the refrigerant processing unit comprising:
a recirculation container;
a refrigerant inlet connected the recirculation container for leading liquid refrigerant into the recirculation container;
a flooded evaporator heat exchanger arranged to heat the liquid refrigerant to generate a phase change of the refrigerant from a liquid phase to a gaseous phase;
a standpipe extending between a liquid refrigerant outlet of the recirculation container and an evaporator inlet of the flooded evaporator heat exchanger;
a return pipe arranged to guide gaseous refrigerant from the flooded evaporator heat exchanger back into the recirculation container;
a superheater heat exchanger located below the recirculation container, wherein the superheater heat exchanger is arranged to heat the gaseous refrigerant to generate a superheated gaseous refrigerant;
a guide pipe arranged to guide the gaseous refrigerant from the recirculation container into the superheater heat exchanger; and
an outlet pipe arranged to guide the superheated gaseous refrigerant out of the superheater heat exchanger and thereby out of the refrigerant processing unit,
wherein the flooded evaporator heat exchanger and the superheater heat exchanger are formed as a single heat exchanger unit located below the recirculation container.