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Custom Steam Turbo Expander Generator Set DCS / PLC Control System

Custom Steam Turbo Expander Generator Set DCS / PLC Control System

    • Custom Steam Turbo Expander Generator Set DCS / PLC Control System
    • Custom Steam Turbo Expander Generator Set DCS / PLC Control System
  • Custom Steam Turbo Expander Generator Set DCS / PLC Control System

    Product Details:

    Place of Origin: CHINA
    Brand Name: QIYAO
    Certification: ISO

    Payment & Shipping Terms:

    Minimum Order Quantity: 1 unit
    Price: Customized Product, Quoted Case By Case
    Packaging Details: Seaworthy packing
    Delivery Time: 4-8 months after PO
    Payment Terms: L/C, T/T
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    Detailed Product Description
    Material: Carbon Steel, Stainless Steel Function: Energy Saving
    Application: Hydrocarbon Processing, Air Separation, LNG Processing And Other Plants Warranty Period: 12 Months Since Operation Or 18 Months Since Delivery
    Packing: Seaworthy Packing
    High Light:

    steam expander


    gas turbo expander

    Custom Steam Turbo Expander Generator Set DCS / PLC Control System


    Steam differential pressure turbo-expander generator set

    I General

    In recent years, increasingly greater importance is attached to energy saving and efficiency improvement in oil refining, chemical, metallurgy, steel and other industries. As one of the critical measures for energy saving and consumption reduction, industrial waste heat & pressure recovery has important social and economic benefit. For the purpose of process flow depressure in the industrial systems, usually throttle valve is used, but the depressure process by throttle valve will inevitably cause such problems as energy loss, increased power consumption, cavitation damage, reduced product ratio and etc.

    The steam differential pressure turbo-expander generator set developed by SMDERI is an efficient energy saving device to replace the temperature and pressure reducer in the steam network of industrial systems. Taking advantage of the steam pressure difference, it drives the turbo-expander to realize almost isentropic depressuring process and recovers the residual pressure energy of steam to generate power to obtain substantial comprehensive benefit in energy saving and consumption reduction.


    II Work principle/process

    All HP steam entering the volute will evenly distribute the working medium to the nozzle ring along the flow channels inside the volute. After the nozzle, the working medium obtains acceleration and converts the pressure energy into kinetic energy and then it flows to the impeller radially. When the impeller performs external work, the pressure energy and kinetic energy are converted into the kinetic energy of rotor to drive it to run at high speed.

    With work effect produced by almost isentropic expansion process of HP steam in the turbine, the steam differential pressure turbo-expander converts the energy contained in the HP steam into mechanical energy and delivers it through the main shaft so as to fulfill the residual pressure recovery.

    Custom Steam Turbo Expander Generator Set DCS / PLC Control SystemCustom Steam Turbo Expander Generator Set DCS / PLC Control System

                                                       Fig. 1 Work process sketch


    III Components

    No. Item Description
    1 Turbo-expander Rotor (impeller, main shaft)
    Shaft seal
    2 Gear box Large gear ratio type
    3 Generator synchronous/asynchronous generator
    4 Lube oil system Forced oil supply lubrication system consisting of oil station and oil piping. The oil station is made up of oil tank, cooler, filter, separator, valves and etc.
    5 Measuring system

    Vibration sensor

    Temperature sensor

    Pressure sensor

    Rotation speed sensor

    6 Control system DCS/PLC


    Based on the inlet pressure, five models are available.

    Model Inlet pressure Outlet pressure Flow rate Output
    ST-HHP 5.0~6.0 MPa 4.0~5.0 MPa 20 t/h 300~500 kW
    ST-HP 3.8~4.4 MPa 1.6~2.2MPa 80t/h 2500~4800kW
    ST-MP 2.0~3.4 MPa 1.0~1.7 MPa 50t/h 2000~2400kW
    ST-LP 0.8~1.2 MPa 0.4~0.6 MPa 30 t/h 800~1400 kW
    ST-LLP 0.4~0.6 MPa 0.2~0.3 MPa 20 t/h 700~900 kW
    IV Advantages
    1) Customized design to adapt to the user demand;
    2) Designed with turbine thermal calculation optimization method and full 3D viscous aerodynamic calculation;
    3) Design optimized with computational fluid dynamics (CFD) and finite element analysis;
    4) Advanced reliability analysis technology;
    5) The main shaft of steam differential pressure turbine integrates with the high speed shaft of gearbox and results in compact size and better economic performance.

    Contact Details
    Shanghai Marine Diesel Engine Research Institute

    Contact Person: Mrs. Tan Ling

    Tel: 86-21-51151156

    Fax: 86-21-51711742

    Send your inquiry directly to us (0 / 3000)

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