KDN 560Y генератор водородной топливной энергии установка для нефтяной и газовой промышленности оборудование с генератором жидкого азота

Technical highlights

1.2 Air pre-cooling system

Freonair heat exchanging pre-cooling system:

 Skid closed structure with little area occupation

 Installed indoor for convenient operation and maintenance

 Equipped with Germany Bitzer double Freon compressor for two state high efficiency and reliable running

 Refrigeration loading adjustable with 3 modes: 50%, 75%, 100%

Equipped with water separator to remove free water after air temperature down, thus to decrease working loading of air purifying system

Decrease the air temperature to be 8-15C which is best for air purifying system working.

1.3 Air purification system

 Remove dangerous impurities contained in the air before entering the cold box and brings complete safety for a long operating time without any necessary defrosting

 With Temperature Swing Adsorption system the total air flow is treated on alumina layer for water elimination and then on the molecular sieve which stop carbon dioxide (CO2), moisture (H2O), acetylene, (C2H2).

Use double layer system because of major advantage:

The activated alumina layer, located upstream, very effectively protects the layer of the molecular sieve as: 

First it completely stops the water. The water, even when pure, relatively quickly downgrades the efficiency of the molecular sieve in relation to the CO2. Unlike the molecular sieve, activated alumina is the ideal adsorbent to stop water. Its mechanical strength is almost unaffected by the presence of liquid water.

Furthermore, when acid gases are present in the air, it is essential for the long term durability of the molecular sieve that these gases do not penetrate alumina layer at the same time as the water. Such acids create mechanical deterioration of the molecular sieve. Compared to molecular sieve, activated alumina has a much higher chemical resistance to acid.

1.4 Air separation system (cold box)

Use complete rectifying process to produce gasliquid nitrogen as per plant design and customers requirements          

Low working pressure(column 1.0MPa.G)

Use convective sieve tray(with China National patent, No. ZL 2006 2 0073335.7) to upgrade fractionation efficiency and recovery rate

1.5 Turbine expander (air bearing)

Helium Turbine expander for China space industry is awarded as national key new product No. 20013200005 by P.R. China Economic & Trade Committee.

No need to consume electricity

With high rotation speed (maximum 250, 000 rpm, normally 40,000-60,000 rpm for ASU) and adiabatic efficiency (normally 80-85%)

Skid structure and small size for easy mount, transportation, and repair

Rotor and bearing(key parts) can be conveniently changed without dismounting whole expander and taking out insulation perlite

1.6 Instrumental control system (PLC control) PLC

Use Siemens PLC S7-300, computer and printer for main data collection, display, interlock, record, print, etc.

Main operation(switch of air purifying system, etc.) can be finished on computer

 1.7 Main design and fabrication software and hardware

      Design:

Use advanced ASPEN and HYSYS software for process simulation and calculation

Use SW6-98 software package for design of pressure vessel

Use Auto CAD, KM CAD, I-DEAS6.0, CAXA for 2D drawing making

Auto CAD

Use ProEngineer and Solid Works for 3D piping design and stress analysis(i.e. inside piping of cold box)

Use MUSE and HYSYS for aluminum plate fin heat exchanger design

Use ProII, Excel, HYSYS for turbine expander design

     Fabrication:

Use USA HAAS 5 coordinate processing center to manufacture impeller and rotor

Use large vacuum braze welding furnace to manufacture aluminum plate fin heat exchanger

Test equipments: XY-2515, XX-2005, XXH-3005, XXQ-3005 X-ray machine, CTS-22,CTS-26 UT facility, JCD-900, CYE-2A, CY-1000A MT

Welding equipments: Submerged Arc auto welding machine, Gas shielded welding machine

Use Schenck dynamic balance test equipments for rotor assembly of turbine expander

Planing machine

 Auto(half-auto) cutting machine

 Sand blast equipment

SN Parameter description   Value

4.1  Auto cleaning air filter   1set

       Model   ZKG-150

       Medium       Air

       Design flow       150M3min(under suction status)

       Normal pressure drop   150~ 650Pa

       Main material    Carbon steel, filtering paper

       Manufacturer    Wuxi

4.2  Main air compressor      1 set

       Model  

       Type     centrifugal

       Medium       air

       Flow     5000NM3hr

       Inlet pressure    0.098 MPa.A

       Outlet pressure 1.0 MPa.G

       Outlet temperature  40C

       Main material    Carbon steel, stainless steel

       Manufacturer    ATLAS

4.3  Air pre-cooling system  1set

       Model   BAYL-500010

       Air flow 5000NM3hr

       Working pressure   1.0MPa.G

       Inletoutlet air temperature   4010C

       Refrigerant 407C

       Refrigerant compressor       Germany Bitzer

       Main material    Carbon steel, stainless steel

4.4  Air purification system  1set

       Model   HXK-500010

       Air flow 5000NM3hr

       Working pressure   1.0MPa.G

       Adsorbent   13X APG molecular sieve+alumina

       Air after purification       H20<1ppm

                                            CO2<1ppm

       Switch way Automatic

       Switch cycle      4hours

       Reactivation gas flow    ~1000NM3hr

       Main material    Q345, OCr18Ni9

4.5  Air separation system (cold box)      1set

       Model   FN-560Y

       Column Working pressure  ~1.2MPa.G

       Rectifying column type Sieve tray

       Main heat exchanger    Plate fin type

       Condenservaporizer     Plate fin type

       Sub-cooler Plate fin type

       Main material    3003, 5052, 5083, Q235-A, 0Cr18Ni9

4.6  Turbine expander 1 1    1set

       Booster end     

       Flow     5000NM3hr

       Inletoutlet pressure 1.051.29 MPa.A

       Inlet temperature     20 deg C

       Adiabatic efficiency       68%

       Medium       Air

       Expansion end

       Flow     2800NM3hr

       Inletoutlet pressure 1.270.13 MPa.A

       Inlet temperature     -133 deg C

       Medium       Air

       Adiabatic efficiency       77%

       Bearing       air

       Cooler after booster       1pc

4.7  Turbine expander 22     1set

       Flow     1400NM3hr

       Inletoutlet pressure 0.530.13 MPa.A

       Inlet temperature     -136 deg C

       Medium       Oxygen enriched air

       Adiabatic efficiency       81%

       Bearing       air

       Cooler after booster       1pc

4.8  Air chiller    1set

       Model   BADL-480012

       Air flow 4800NM3hr

       Working pressure   1.2MPa.G

       Inletoutlet air temperature   -25-35C

       Refrigerant 404a

       Refrigerant compressor       Germany Bitzer

       Main material    Carbon steel, stainless steel

4.9  Instrumental control system       1set

       Control way       Automatic

       Configuration Software       Siemens PLC S7-300

       Operator stationincluding computer and operation system software       1set

       Engineer stationincluding computer and operation system software      1set

       Printer  1 set(HP or CANON)

       UPS      30 minutes

       Pressure transmitter      1151 GP,SAIC

       Differential pressure transmitter       1151 DP, SAIC

       Solenoid valve SMC or ASCO, or CKD

       Butterfly valve   Neles or Hangyang

       Thermometer    Pt100

       Pressure gauge      Spring type

       Expander rotation probe      Shanghai, Jiangxi

       Local pressuretemperature indicator      Shanghai,

       Cryogenic valve      Sanfang

       Analyzers, including    

       Product N2 analyzer(online)     ZO-102T, Shanghai Kegui

       CO2 analyzer   TG-J216A, Xian, Tiger

       H2O analyzer   TG-1500, Xian Tiger

4.10      Electrical control system      1set

4.11      Unit internal valves and gauges on contractors PID drawing (including mate flanges, bolts, nuts, etc.)PID()    1set

4.12      Unit external valves and gauges on contractors PID drawingPID     1set