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air compressor PSA Oxygen plant

Country/Region china
Company cowellmachinery company
Categories Air Compressor Parts
ICP License Issued by the Chinese Ministry
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    air compressor PSA Oxygen plant

    Principle
    Nitrogen and oxygen have a quadrupole, quadrupole nitrogen (0.31 A) than oxygen (0.10 A) much, zeolite adsorption capacity of nitrogen-oxygen ratio. When the pressurized air in the state through with zeolite adsorption bed, the zeolite adsorption of nitrogen, oxygen and the outflow was less adsorption bed adsorption to obtain oxygen from nitrogen purposes. When the zeolite adsorption of nitrogen to close to saturation, and to stop the importation of lower air pressure adsorption bed zeolite adsorption and desorption of nitrogen can be out zeolite are renewable and reusable. The equipment through adsorption tower, a tower-oxygen adsorption, desorption a regeneration tower, alternating cycle, the continuous production of oxygen.

    Classification Process
    According to the adsorption and desorption pressure different, we usually can be at room temperature PSA oxygen process is divided into three different ways, according to different users working conditions and needs, select suitable process to achieve the purpose of reducing energy consumption.
    1. Atmospheric oxygen pressure swing adsorption and desorption(PSA-O2)
    Air and Nitrogen PSA separation process similar to a certain pressure (0.3 MPa to 0.55MPa) compressed air through the air pretreatment system to remove oil, most of the dust and water vapor state, clean air into the PSA-O2 adsorption system Tajikistan, with zeolite adsorption tower (ZMS), the clean air in most of the nitrogen, carbon dioxide and residual moisture was zeolite adsorption of oxygen were separated. When adsorption tower is adsorbed impurities in group settings to control &#118alues, through desorption desorption pressure, so that the adsorption of oxygen sorbent regeneration tower. From the two towers composed of adsorption separation system in the PLC system under the control valve controlled by the switch from the closed cycle and completed consecutive oxygen, the oxygen pressure swing adsorption process commonly known as atmospheric oxygen desorption process(PSA-O2)
    2. Vacuum pressure swing adsorption oxygen desorption(VPSA-O2)
    The blast blower air transportation of raw materials low pressure (25 ~ 39KPa KPa), purification to remove dust and entered with zeolite (ZMS) adsorption tower, adsorption tower for the two towers or tower system, and gas adsorption tower for the oxygen. In the air, nitrogen, carbon dioxide, water vapor absorbed by setting control &#118alue, as low pressure adsorption, desorption pressure through the first, through the vacuum pump reaches a certain vacuum, complete adsorption-desorption tower adsorbent impurities renewable. From the two towers composed of three towers or oxygen adsorption separation system in the DCS or PLC control system, controlled switching valve cycle for producing oxygen completed, the process that we normally vacuum pressure swing adsorption and desorption processes oxygen (O2-VPSA) .
    3. Desorption of oxygen vacuum(VSA-O2)
    Raw material inlet air pressure below the VPSA process for the 15 KPa ~ 19KPa, and the remaining process and VPSA basically the same process, the process that we normally vacuum desorption of oxygen flow (VSA-O2), equipment larger, stronger economy.
    Comparison of Three

    PSA

    VPSA

    VSA

    Capacity
    (Nm3/h)

    3~120

    150~2000

    2000~10000

    Purity oxygen

    65%~95%

    80%~93%

    80%~93%

    Export pressure

    0.2MPa~0.3MPa

    18KPa~30KPa

    10KPa~15KPa

    Atmospheric dewpoint(℃)

    -45℃

    -40℃

    -40℃

    Energy Consumption

    0.4~0.52 KWh/Nm3Oxygen

    0.35~0.45 KWh/Nm3Oxygen

    0.30~0.42K

    Wh/Nm3Oxygen


    Features equipment
    1. Close adsorbent loading and highly reliable means of pneumatic valves, devices guarantee the long-term stable operation;
    2. A parking convenient, only takes about 30 minutes, can be qualified oxygen;
    3. Oxygen used new technology and new molecular sieve, by optimizing the device design, reduce power consumption and investment;
    4. Used PLC control, automatic operation, equipment performance, low failure rate;
    5. Yield and purity oxygen can b

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