F - Mech Eng,Light,Heat,Weapons – 25 – D
Patent
F - Mech Eng,Light,Heat,Weapons
25
D
62/3
F25D 31/00 (2006.01) C09K 5/06 (2006.01) F28C 3/08 (2006.01)
Patent
CA 2027603
Liquid is cooled in a columnar vessel 2 having an inlet 4 and an outlet 6 for the liquid. The cooling is effected by introducing liquid cryogen into the vessel 2 through a pipe 14. The liquid cryogen vaporises and crates turbulence in the liquid in the vessel 2. Perforated plates 12 dampen the turbulence and disengage the vaporised cryogen from the liquid being cooled. Pressurised gas is introduced from an inlet 16 into the liquid beneath the liquid cryogen. This pressurised gas crates turbulence in the region where the cryogen enters the liquid and thus is able to prevent local freezing of the liquid in the mouth of the pipe 14. The liquid is typically water and the liquid cryogen typically liquid nitrogen.
Gowling Lafleur Henderson Llp
The Boc Group Plc
LandOfFree
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