PROCESS AND APPARATUS FOR PRODUCING NITROGEN AND OXYGEN

A b s t r a c t A process for producing nitrogen and oxygen from a precompressed and cooled air comprising compression of air to a pressure of from 0.3 to 0.6 MPa, cooling the compressed air to a saturated state with a partial liquefaction at a temperature of from 90 to 100.degree.K. The cooled air...

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Hauptverfasser:	VORONIN, GRIGORY I., PLOSCHAD VOSSTANIA, I, KV 447, MOSCOW, SUSLOV, ALEXANDR D., ULTISA BOLSHAVA SPASSKAYA, 32, KV.312, MOSCOW, VORONIN, VALENTIN G., ULITSA GORKOGO, 43, KV.144, MOSCOW, CHIZHIKOV, JURY V., DEGTYARNY PEREULOK, 10, KV.6., MOSCOW, IVANOV, SERGEI V., SEVASTOPOLSKY PROSPEKT, 44, KORPUS 4, KV.260, M
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING MIXTURES BY PRESSURE AND COLD TREATMENT REFRIGERATION OR COOLING WEAPONS
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Beschreibung
Zusammenfassung:	A b s t r a c t A process for producing nitrogen and oxygen from a precompressed and cooled air comprising compression of air to a pressure of from 0.3 to 0.6 MPa, cooling the compressed air to a saturated state with a partial liquefaction at a temperature of from 90 to 100.degree.K. The cooled air with a partial content of the liquid is supplied to separation into at least one vortex pipe. An apparatus for carrying said process comprises a compressor and heat-exchangers positioned along the path of movement of the compressed air, which heat-exchangers have a high-pressure cavity and a low-pressu-re cavity, and a vortex pipe having, at one end thereof, an inlet nozzle and a membrane for discharging nitrogen and, at the other end thereof, a diffuser for discharging oxygen. The inlet nozzle of the vortex pipe is connected with the high-pressure cavity of the heat-exchanger, while the vortex pipe membrane - with the low-pressure cavity of the heat-ex-changer. The present invention has the advantage of small size of the apparatus and its workability under the conditions of inertional overloads.