公开(公告)号：US5362455A

公开(公告)日：1994-11-08

申请号：US11064

申请日：1993-01-29

Applicant: Alan T. Cheng

Inventor： Alan T. Cheng

IPC: B01D9/02 ,  B01D9/00 ,  B01J8/22 ,  B01J19/00 ,  B01J19/26

CPC classification number: B01J19/26 ,  B01D9/0009 ,  B01J8/226 ,  Y10T117/10 ,  Y10T117/1024 ,  Y10T117/1096

Abstract: A direct contact cryogenic crystallizer having a vertically oriented draft tube into which cryogenic fluid is injected at a high velocity along with warm gas and through which a crystal slurry is drawn for subsequent cooling and agitation for the production of crystals.

Abstract translation: 一种直接接触式低温结晶器，其具有垂直定向的导流管，低温流体与暖气一起以高速注入其中，并通过该低温液体引入晶体浆液用于随后的冷却和搅拌以产生晶体。

公开(公告)号：US4931225A

公开(公告)日：1990-06-05

申请号：US317577

申请日：1989-03-01

Applicant: Alan T. Cheng

Inventor： Alan T. Cheng

IPC: B01D19/00 ,  B01F3/04 ,  B01F5/04 ,  B01J10/00 ,  B01J19/26 ,  C02F1/20

CPC classification number: B01D19/0005 ,  B01F5/045 ,  B01J10/002 ,  B01J19/26 ,  C02F1/20 ,  B01F3/04099 ,  B01J2219/00162 ,  B01J2219/00164 ,  Y10S261/75 ,  Y10S261/78

Abstract: The present invention relates to an improved method and apparatus for dispersing a gas into a liquid. Gas is injected into a liquid and the flowing gas-liquid mixture is accelerated by a flow area contraction to at least sonic flow velocity, and subsequently decelerated by a flow area expansion to subsonic velocity. The attendant shock waves disperse the gas in the liquid. Preferred embodiments include off-centering the gas injection direction from the centerline of the contracting flow area and controlling the pressure at the exit of the expanding flow area.

Abstract translation: 本发明涉及一种用于将气体分散到液体中的改进方法和装置。 将气体注入液体中，流动的气液混合物通过流动面积收缩加速至至少声流速度，随后通过流动面积膨胀减速至亚音速。 伴随的冲击波将气体分散在液体中。 优选实施例包括从收缩流动区域的中心线偏离气体注入方向并控制膨胀流动区域出口处的压力。