| 摘要 |
PURPOSE:To simplify the installation as a whole, to reduce operating energy and to utilize effectively the cold heat of a cryogenic medium by ejecting directly said medium into the liquid phase of the liquid to be cooled. CONSTITUTION:A nozzle mounting pipe 13 which has a supporting flange 14 on the outside of a containing vessel 11 for contg. the liquid to be cooled and communicates the inside and outside of the vessel is provided to the vessel bottom 11A positioned in the liquid phase of said vessel. A nozzle 16 which ejects the cryogenic medium into said liquid phase and has a nozzle flange 15 on the root end side is disposed by inserting the nozzle into said pipe from the outside of the vessel. A cryogenic medium introducing pipe 20 having a fixing flange 19 which supports the flange 15 between said flange and the supporting flange 14 is connected to the nozzle 16. The cryogenic medium is directly ejected into the liquid phase of the liquid to be cooled. As a result, the installation is simplified as a whole and the operating energy is reduced. The effective use of the cold heat of the cryogenic medium is thus made possible.
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