US 12,098,889 B2
Falling film heat exchanger
Jeb W. Schreiber, Stewartstown, PA (US); Xiuping Su, Wuxi (CN); Li Wang, Wuxi (CN); Brian Thomas Gallus, York, PA (US); Scott Allen Ford, Spring Grove, PA (US); and Fang Xue, Wuxi (CN)
Assigned to Tyco Fire & Security GmbH, Schaffhausen (CH); and York (Wuxi) Air Conditioning And Refrigeration Co., Ltd., Jiangsu (CN)
Appl. No. 16/757,337
Filed by Johnson Controls Technology Company, Auburn Hills, MI (US); and YORK (WUXI) AIR CONDITIONING AND REFRIGERATION CO., LTD., Wuxi (CN)
PCT Filed Oct. 20, 2017, PCT No. PCT/US2017/057680
§ 371(c)(1), (2) Date Apr. 17, 2020,
PCT Pub. No. WO2019/078893, PCT Pub. Date Apr. 25, 2019.
Prior Publication US 2021/0190432 A1, Jun. 24, 2021
Int. Cl. F28D 3/04 (2006.01); F25B 39/02 (2006.01); F28D 3/02 (2006.01); F28D 5/02 (2006.01); F28D 21/00 (2006.01); F28F 9/02 (2006.01); F28F 25/08 (2006.01)
CPC F28D 3/04 (2013.01) [F25B 39/028 (2013.01); F28D 3/02 (2013.01); F28D 5/02 (2013.01); F28D 21/0017 (2013.01); F28F 9/0278 (2013.01); F28F 25/085 (2013.01); F28F 25/087 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A heat exchanger for a heating, ventilation, air conditioning, and refrigeration (HVAC&R) system, comprising:
a shell having an inlet configured to receive refrigerant and an outlet configured to output the refrigerant;
a refrigerant distributor disposed within the shell; and
a plurality of evaporating tubes disposed within the shell and positioned below the refrigerant distributor,
wherein the refrigerant distributor comprises a perforated plate having a plurality of holes, wherein each hole of the plurality of holes extends from a top surface of the perforated plate to a bottom surface of the perforated plate, and a center point of each hole of the plurality of holes is substantially aligned with a centerline of a respective evaporating tube of the plurality of evaporating tubes, and wherein at least a portion of the top surface is arcuate along a longitudinal axis of the heat exchanger.