US 12,458,938 B2
Mixing nozzle and contaminated gas purification device using mixing nozzle
Tadashi Narabayashi, Tokyo (JP); Hiroshige Kikura, Tokyo (JP); Hideharu Takahashi, Tokyo (JP); Katsumasa Araoka, Tokyo (JP); Koji Endo, Tokyo (JP); and Tomohiko Yoshii, Amagasaki (JP)
Assigned to RASA INDUSTRIES, LTD., Tokyo (JP); GX ENERGY LTD., Tokyo (JP); and KIMURA CHEMICAL PLANTS CO., LTD., Amagasaki (JP)
Appl. No. 17/920,312
Filed by TOKYO INSTITUTE OF TECHNOLOGY, Tokyo (JP); RASA INDUSTRIES, LTD., Tokyo (JP); and KIMURA CHEMICAL PLANTS CO., LTD., Amagasaki (JP)
PCT Filed Mar. 26, 2021, PCT No. PCT/JP2021/012811
§ 371(c)(1), (2) Date Oct. 20, 2022,
PCT Pub. No. WO2021/215191, PCT Pub. Date Oct. 28, 2021.
Claims priority of application No. 2020-075710 (JP), filed on Apr. 21, 2020.
Prior Publication US 2023/0173440 A1, Jun. 8, 2023
Int. Cl. B01F 25/314 (2022.01); A61L 9/14 (2006.01); A61L 9/22 (2006.01); A61L 101/02 (2006.01); A62B 23/02 (2006.01); B01D 39/20 (2006.01); B01D 45/08 (2006.01); B01D 53/04 (2006.01); B01D 53/14 (2006.01); B01D 53/18 (2006.01); B01D 53/86 (2006.01); B01F 23/231 (2022.01); B01F 25/312 (2022.01); B01F 101/00 (2022.01); G21F 9/02 (2006.01)
CPC B01F 25/31422 (2022.01) [A61L 9/145 (2013.01); A61L 9/22 (2013.01); B01D 39/2017 (2013.01); B01D 39/2041 (2013.01); B01D 45/08 (2013.01); B01D 53/04 (2013.01); B01D 53/1493 (2013.01); B01D 53/185 (2013.01); B01D 53/8687 (2013.01); B01F 23/23121 (2022.01); B01F 25/31233 (2022.01); G21F 9/02 (2013.01); A61L 2101/02 (2020.08); A61L 2209/134 (2013.01); A61L 2209/14 (2013.01); A62B 23/02 (2013.01); B01D 2252/103 (2013.01); B01D 2253/108 (2013.01); B01D 2257/202 (2013.01); B01D 2257/80 (2013.01); B01D 2259/4541 (2013.01); B01D 2259/4566 (2013.01); B01F 2101/2204 (2022.01)] 21 Claims
OG exemplary drawing
 
1. A mixing nozzle immersed in solution stored in a water storage pool, and mixing gas from outside and the solution in the water storage pool from a bottom side of the water storage pool toward an upward direction, the mixing nozzle comprising:
a throat section which includes an internal cross-sectional area for accelerating mixed flow which is provided by mixing the gas and the solution;
a diffuser section whose internal cross-sectional area expands in a flared shape toward a downstream side from the throat section;
a gas nozzle section having a gas nozzle tip whose internal cross-sectional area reduces in a tapered shape toward the downstream side, arranged at an upstream side of the throat section, and supplied with the gas from the outside;
a first liquid suction port for liquidly absorbing the solution in the water storage pool from a side of the gas nozzle section toward the gas nozzle tip;
a liquid nozzle section extending to the downstream side of the gas nozzle section with intervening the first liquid suction port, and having a liquid nozzle tip whose internal cross-sectional area reduces in a tapered shape toward the downstream side;
a second liquid suction port for liquidly absorbing the solution in the water storage pool from a side of the liquid nozzle section toward the liquid nozzle tip, arranged at the upstream side of the throat section and the downstream side of the liquid nozzle section;
a baffle plate arranged at a downstream end of the diffuser section and provided such that the gas discharged from the gas nozzle tip is accelerated in the throat section together with the solution liquidly absorbed from the first liquid suction port and the second liquid suction port and that the mixed flow mixed in the diffuser section collides in front of the downstream end of the diffuser section, in which the baffle plate divides and reverses the mixed flow such that high-speed reversed flow of the mixed flow is formed and the gas and the solution are mixed by centrifugal force; and
a jetting port in which the mixed flow divided and reversed by the baffle plate jets out in a direction not directly toward an upper direction of the water storage pool.