EP 0745817 B1 20010926 - oxygen gas manufacturing apparatus
Title (en)
oxygen gas manufacturing apparatus
Title (de)
Apparat zur Herstellung von Sauerstoffgas
Title (fr)
Dispositif de fabrication de gaz d'oxygène
Publication
Application
Priority
EP 95303744 A 19950601
Abstract (en)
[origin: EP0745817A1] The apparatus includes a fractionating tower (58) for liquefying and separating compressed air cooled by heat exchangers (56,57) to an ultralow temperature, a liquid oxygen takeout path (72) for guiding liquid oxygen from the above-mentioned fractionating tower to the above-mentioned heat exchangers to gasify so as to become oxygen gas, and a product oxygen gas takeout path (74) which extends from the upstream end of the above-mentioned liquid oxygen takeout path and increases the temperature of the above-mentioned oxygen gas so as to obtain a product oxygen gas. The liquid oxygen takeout path is provided with an oxygen gas pressurizing pump (73), and the product oxygen gas takeout path on the side upstream the above-mentioned heat exchangers is provided with an expansion turbine (75). In the present invention, the liquid oxygen taken out from the fractionating tower is pressurized in a liquid state, then introduced into the expansion turbine to generate cold, which cold is fed to the heat exchangers and used as a cold source for the entire equipment to reduce the cost of refrigeration. <IMAGE>
IPC 1-7
IPC 8 full level
F25J 3/04 (2006.01)
CPC (source: EP)
F25J 3/04024 (2013.01); F25J 3/0409 (2013.01); F25J 3/04139 (2013.01); F25J 3/04193 (2013.01); F25J 3/04254 (2013.01); F25J 3/04321 (2013.01); F25J 3/04381 (2013.01); F25J 3/0443 (2013.01); F25J 3/04478 (2013.01); F25J 3/04781 (2013.01); F25J 3/04818 (2013.01); F25J 3/04866 (2013.01); F25J 2210/50 (2013.01); F25J 2235/50 (2013.01); F25J 2240/20 (2013.01); F25J 2280/10 (2013.01)
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 0745817 A1 19961204; EP 0745817 B1 20010926; DE 69522927 D1 20011031; DE 69522927 T2 20020411
DOCDB simple family (application)
EP 95303744 A 19950601; DE 69522927 T 19950601