US 12,447,432 B2
Switchable two-stage coalescence separation system
Cheng Chang, Beijing (CN); Zhongli Ji, Beijing (CN); Xiaolin Wu, Beijing (CN); Zhen Liu, Beijing (CN); and Feng Chen, Beijing (CN)
Assigned to China University of Petroleum-Beijing, Beijing (CN)
Filed by China University of Petroleum-Beijing, Beijing (CN)
Filed on Jan. 12, 2023, as Appl. No. 18/153,598.
Application 18/153,598 is a continuation of application No. PCT/CN2021/137428, filed on Dec. 13, 2021.
Claims priority of application No. 202110264220.5 (CN), filed on Mar. 11, 2021.
Prior Publication US 2023/0173424 A1, Jun. 8, 2023
Int. Cl. B01D 46/00 (2022.01); B01D 46/24 (2006.01); B01D 46/58 (2022.01); B01D 46/62 (2022.01)
CPC B01D 46/0031 (2013.01) [B01D 46/0005 (2013.01); B01D 46/2403 (2013.01); B01D 46/58 (2022.01); B01D 46/62 (2022.01); B01D 2265/029 (2013.01); B01D 2265/06 (2013.01); B01D 2271/022 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A switchable two-stage coalescence separation system, comprising a coalescer housing, a plurality of two-stage filter elements, and a particle detector for detecting a content of solid particles and a content of droplets in gas entering the coalescer housing, wherein
the coalescer housing is provided with a tube sheet inside, and the tube sheet divides an interior of the coalescer housing into a lower chamber and an upper chamber; each of the two-stage filter elements is disposed on the tube sheet, and a lower part and an upper part of each of the two-stage filter elements are located in the lower chamber and the upper chamber, respectively;
the coalescer housing is connected with a first gas inlet branch pipe communicated with the lower chamber and a second gas inlet branch pipe communicated with the upper chamber; the first gas inlet branch pipe and the second gas inlet branch pipe are connected to a gas inlet main pipe through a first multi-way valve, and the particle detector is disposed on the gas inlet main pipe;
the coalescer housing is connected with a first gas outlet branch pipe communicated with the upper chamber and a second gas outlet branch pipe communicated with the lower chamber; the first gas outlet branch pipe and the second gas outlet branch pipe are connected to a gas outlet main pipe through a second multi-way valve.