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Water Heat Medium Air Preheater With Flue Gas Heat Exchanger / Q235B Shell

Water Heat Medium Air Preheater With Flue Gas Heat Exchanger / Q235B Shell

    • Water Heat Medium Air Preheater With Flue Gas Heat Exchanger / Q235B Shell
    • Water Heat Medium Air Preheater With Flue Gas Heat Exchanger / Q235B Shell
  • Water Heat Medium Air Preheater With Flue Gas Heat Exchanger / Q235B Shell

    Product Details:

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

    Payment & Shipping Terms:

    Minimum Order Quantity: 1 set
    Price: Customized Product, Quoted Case By Case
    Packaging Details: Seaworthy Packing
    Delivery Time: 4~8 months after PO
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    Detailed Product Description
    Material: Carbon Steel, Stainless Steel Packing: Seaworthy Packing
    Service: Design, Supply With Supervision On Site Installation, Commisioning & Training Application: Refineries, Petrochemical Industries, Etc.
    Function: To Produce Superheated Steam Without Fuel Consumption Environment Impact: Friendly Emission: Low NOx, SOx & Catalyst Dust
    Customised: Available

    Water Heat Medium Air Preheater With Flue Gas Heat Exchanger / Q235B Shell
     
     
    Water-Heat-Medium technology
    The water-heat-medium technology mainly functions to further recover the heat in low temperature flue gas while make sure that no corrosion is caused at the equipment so as to maximize the energy saving and minimize the energy consumption.
     
    Work Principle/Flow
    * The water-heat-medium system mainly consists of flue gas heat exchanger, medium heat exchanger (air preheater, feedwater preheater or other medium preheater), hot water circulation pump, regulating valve set and etc. The flue gas heat exchanger is located at the flue duct at the tail of heating furnace or boiler and the medium heat exchanger is located at the flow path of the medium to be heated.
     
    * The water-heat-medium system uses a medium pressure deaerated water (2.5~5.0MPa) to maintain the operating pressure of the system and improve the saturation temperature of the heat medium water, which is helpful to improve the heat transfer grade and maximize the waste heat recovery process. During normal operation, water-heat-medium system itself does not consume any deaerated water.
     
    * The hot water circulation pump functions to overcome the flow resistance of water-heat-medium system and continuously transfer the heat absorbed by the heat medium water in the flue gas heat exchanger to the medium to be heated. The bypass regulator valve is to regulate the inlet temperature of heat medium water at the flue gas heat exchanger inlet and make sure it is above the flue gas dew point temperature.
     
     
    Heat medium water flow
    Water Heat Medium Air Preheater With Flue Gas Heat Exchanger / Q235B Shell
     
    Process flow of water-heat-medium system
    Water Heat Medium Air Preheater With Flue Gas Heat Exchanger / Q235B Shell
     
     
     
    Structure & Parameter
     

    Service

    Waste heat recovery

    Equipment

    Non-corrosion water-heat-medium preheater technology

    Specification

    Integral modularized structure

    Components

    Flue gas heat exchanger, medium heat exchanger (air preheater, feedwater preheater or other medium preheater), hot water circulation pump, regulator valve

    Material

    Shell: Q235B
    Heat transfer tube bundle: 20#/20G

    Fabrication code

    Steam boiler safety & technology supervision regulation

    Flue gas flowMin.: 5000Nm3/h
    Inlet flue gas pressure-5.0-10.0Kpa
    Inlet flue gas temperature200-500℃
    Outlet flue gas pressure-4.0-9.0Kpa
    Outlet flue gas temperature120℃-150℃
    Refractory lining

    Aluminum silicate fibre felt

    External wall temperature of equipment≤60℃
    Utility

    2-Phase power supply: 10Kw
    Water consumption: 0-1 ton

    Main measuring points

    Inlet flue gas temperature
    Waste heat outlet flue gas temperature
    Regulator valve opening
    Circulation pump opening

    Main interlocked alarm

    nlet flue gas temperature high

    Service life of critical equipment

    Design service life: 8 years

    Downtime of spare parts

     3~4 months

    Warranty period

    12 months since normal operation or 18 months since delivery to site, whichever comes first

    Scope of work/serviceEPC
    Response to service request

    24hs

    Application

    Oil refining, chemical and coal chemical industries

     
     
      

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    Advantage 
    (1) Flexible and easy arrangement
    (2) Wide adaptability to various fuels
    (3) Accommodation of load change
    (4) Improved operation safety
    (5) Common use for multiple adjacent heaters
    (6) Extended service life.
     
     
    Typical Application

    No.

    Project

    Specification

    User

    Qty.

    1

    1# & 2# aromatic hydrocarbons hydrogenation cracking heater waste heat recovery system reconstruction

    1# Flue gas flow:11280kg/h
    2# Flue gas flow:55757kg/h

    Sinopec Shanghai company

    2 sets

    2

    1,200,000T/year catalytic plant waste heat recovery

    Q179/505-10/79.2-3.82/348

    Shandong Dongming Petrochemical Group
    Jiangsu Xinhai Petrochemical Company

    1 unit

    3

    2,800,000T/year heavy oil catalytic CO waste heat recovery reconstruction

    BQ211/800-42/135-3.82/450

    Sinopec Hainan company

    2 units

    4

    1,800,000T/year catalytic plant waste heat boiler

    BQC235/900-142-3.82/420

    CNPC Fushun company

    1 unit

    5

    1,800,000T/year catalytic plant waste heat recovery reconstruction

    Q310/540-230-3.82/380

    Yanchang Group Yulin Refining & Chemicals Co. Ltd.

    2 units

     

     
     
     
     

    Contact Details
    Shanghai Marine Diesel Engine Research Institute

    Contact Person: Mrs. Tan Ling

    Send your inquiry directly to us (0 / 3000)

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