US 12,290,780 B2
Dryer for compressed gas, compressor installation provided with a dryer and a method for drying compressed gas
Geert Hellemans, Wilrijk (BE); and Thibault Crepain, Wilrijk (BE)
Assigned to ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP, Wilrijk (BE)
Appl. No. 17/626,531
Filed by ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP, Wilrijk (BE)
PCT Filed Aug. 14, 2020, PCT No. PCT/IB2020/057662
§ 371(c)(1), (2) Date Jan. 12, 2022,
PCT Pub. No. WO2021/033100, PCT Pub. Date Feb. 25, 2021.
Claims priority of application No. 2019/5534 (BE), filed on Aug. 16, 2019; application No. 2019/5535 (BE), filed on Aug. 16, 2019; application No. 2019/5537 (BE), filed on Aug. 16, 2019; and application No. 2019/5538 (BE), filed on Aug. 16, 2019.
Prior Publication US 2022/0241720 A1, Aug. 4, 2022
Int. Cl. B01D 53/26 (2006.01); F04B 39/16 (2006.01)
CPC B01D 53/26 (2013.01) [F04B 39/16 (2013.01); B01D 2257/80 (2013.01); B01D 2259/40088 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A dryer for compressed gas, comprising:
a pressure vessel comprising a rotation symmetrical part including a drying zone and a regeneration zone;
a drum, set up in the rotation symmetrical part, provided with a regenerable drying agent;
driving means for rotating said drum relative to the rotation symmetrical part, or vice versa, so that the drying agent is moved successively through the drying zone and the regeneration zone;
an inlet for the supply of compressed gas to be dried;
an outlet for the discharge of dried compressed gas;
a first connection line for tapping-off of a partial stream of the dried compressed gas and guiding the partial stream to the regeneration zone, wherein the first connection line is provided with a heating device for heating the partial stream tapped-off for regeneration;
wherein the first connection line and the heating device are located within the pressure vessel,
wherein the outlet side of the drying zone is subdivided using means for separation of the stream of dried gas at the position where it is expelled from the drum into a first outlet zone with which the outlet is connected for the dried compressed gas, and a second outlet zone with which the first connection line is connected;
wherein the heating device is a heat exchanger, provided for heating the partial stream tapped-off for regeneration with the compressed gas to be dried supplied to the dryer, and wherein the heat exchanger forms the means for the separation of the stream of dried gas at the position where it is expelled from the drum.