US 12,447,435 B2
Dryer for compressed gas, compressor installation provided with a dryer and a method for drying compressed gas
Thibault Crepain, Wilrijk (BE); Geert Hellemans, Wilrijk (BE); and Hans Hermans, Wilrijk (BE)
Assigned to ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP, Wilrijk (BE)
Appl. No. 17/631,734
Filed by ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP, Wilrijk (BE)
PCT Filed Aug. 14, 2020, PCT No. PCT/IB2020/057663
§ 371(c)(1), (2) Date Jan. 31, 2022,
PCT Pub. No. WO2021/033101, PCT Pub. Date Feb. 25, 2021.
Claims priority of application No. 2019/5536 (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 2022/0274054 A1, Sep. 1, 2022
Int. Cl. B01D 53/06 (2006.01); B01D 53/04 (2006.01); B01D 53/26 (2006.01); B01D 53/30 (2006.01)
CPC B01D 53/06 (2013.01) [B01D 53/0454 (2013.01); B01D 53/261 (2013.01); B01D 53/30 (2013.01); B01D 2257/80 (2013.01); B01D 2259/4009 (2013.01)] 18 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 the rotation of 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 a partial stream of the compressed gas to be dried or the dried compressed gas and sending this partial stream to the regeneration zone;
adjustable means provided for mixing the partial stream used for regeneration with the supply stream of the compressed gas to be dried and regulation of the flow of the partial stream relative to the added supply stream;
wherein the dryer further comprises a sensor set with one or more sensors for direct or indirect measurement of the flow of the supply stream and/or the partial stream, and a control unit connected to communicate with the one or more sensors and said adjustable means and provided for processing measured values of the flow of the supply stream and/or the partial stream, determining a first control signal for said adjustable means based on the measured values, and providing the first control signal to said adjustable means.