Process and apparatus for producing nitrogen and oxygen
    1.
    发明授权
    Process and apparatus for producing nitrogen and oxygen 失效
    用于生产氮和氧的方法和装置

    公开(公告)号:US4531371A

    公开(公告)日:1985-07-30

    申请号:US660246

    申请日:1984-10-12

    摘要: 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.degree. to 100.degree. K. The cooled air with a partial content of the liquid is supplied to separation into at least one vortex tube.An apparatus for carrying said process comprises a compressor (1) and heat-exchangers (2) positioned along the path of movement of the compressed air, which heat-exchangers have a high-pressure cavity and a low-pressure cavity, and a vortex tube (4) having, at one end thereof, an inlet nozzle (5) and a diaphragm (6) for discharging nitrogen and, at the other end thereof, a diffuser (7) for discharging oxygen. The inlet nozzle (5) of the vortex tube (4) is connected with the high-pressure cavity of the heat-exchanger (2), while the diaphragm (6) of the vortex pipe (4) is connected with the low-pressure cavity of the heat-exchanger (2).

    摘要翻译: PCT No.PCT / SU80 / 00163 Sec。 371日期1982年5月12日 102(e)日期1982年5月12日PCT提交1980年9月25日PCT公布。 出版物WO82 / 01242 日本1984年4月15日。一种从预压缩和冷却的空气中生产氮和氧的方法,包括将空气压缩至0.3至0.6MPa的压力,将压缩空气冷却至饱和状态,部分液化温度为 90°至100°K。将具有部分含量的液体的冷却空气供应至至少一个涡流管中。 用于承载所述方法的装置包括压缩机(1)和沿着压缩空气运动路径定位的热交换器(2),该热交换器具有高压腔和低压腔,以及涡流 管(4)的一端具有用于排出氮气的入口喷嘴(5)和隔膜(6),另一端具有用于排出氧气的扩散器(7)。 涡流管(4)的入口喷嘴(5)与热交换器(2)的高压腔相连,而涡流管(4)的隔膜(6)与低压 热交换器(2)的腔。