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Temperature Resistance Steel Superheater And Reheater For Pulverized Coal Boilers

Categories Superheater And Reheater
Brand Name: HD BOILER
Model Number: Heating area
Certification: ISO9001 , SGS , TUV , ASME , EN
Place of Origin: China
MOQ: 1 set
Price: Negotiable
Payment Terms: L/C, T/T, Western Union, MoneyGram
Supply Ability: 1500 Tons / Month
Delivery Time: 50 ~ 100 Days
Packaging Details: Seaworthy packing
Fuel of Boiler: Coal
Product Name: Superheater and reheater in boiler
Application: Industry boiler and CFB boiler
Surface Treatment: Painted
Packing: Steel Frame
Structure: Fire / Water Tube
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    Temperature Resistance Steel Superheater And Reheater For Pulverized Coal Boilers

    Temperature Resistance Steel Superheater And Reheater For Pulverized Coal Boilers


    Description of Boiler Superheater and Reheater


    Superheater is a part of a boiler that heats the steam from the saturation temperature to the overheating temperature. It is also called a steam superheater.Superheater can be divided into convective type, radial type and semi-radial type according to heat transfer mode;According to the characteristics of the structure, it can be divided into serpentine pipe type, screen type, wall type and wall type.They are made up of parallel pipes and inlet and outlet manifold.

    Most industrial boilers do not have superheaters because many industrial processes and living facilities require only saturated steam.In power stations, locomotives and Marine boilers, superheater is usually installed to improve the circulating thermal efficiency of the whole steam power plant.





    Details of Boiler Superheater and Reheater


    • Superheating raises overall efficiency as well as avoids too much condensation in last stages of turbine which avoids blade erosion.
    • The heat of combustion gases from furnace is utilised for removal of moisture from steam and to superheat the steam.
    • Super-heaters ususlly have several tube circuits in parallel with one or more return bends,connected between headers.
    • Heat from the hot gases to the vapour in the surperheater is transferred at high temperatures.
    • Therefore promary section of superheater is arranged in counterflow and secondary section in parallel flow to reduce the temp.stressing of the tube wall.


    Differences of Boiler Superheater and Reheater


    TypeAdvantagesDisadvantagesSupporting method
    Pendant-type1.Firm structural support1. Flow blockage by condensed steam 2. Needs slow restart to purge the water that accumulates in the bottom.supported from above
    Inverted-type1.Proper drainage of the condensed steam1. Lack the structural rigidity, especially in high speed gas flowSupported from below
    Horizontal -type

    1. Proper drainage

    2. Good structural rigidity.

    1. They do not view the flam directly so they are mainly from the convective typeUsually supported in the vertical gas ducts parallel to the main furnace.



    Functions of Boiler Superheater and Reheater


    1.Superheater is the saturated steam heated into a certain temperature of superheated steam equipment.

    2.After the saturated steam is heated into superheated steam, the working capacity of steam in the steam turbine is improved, that is, the useful enthalpy of steam in the steam turbine is increased, thus improving the cycle efficiency of the heat engine.

    3.In addition, the adoption of hot steam can also reduce the steam exhaust humidity of the steam turbine, avoid the corrosion of the steam turbine blade, and create favorable conditions for the further reduction of steam exhaust pressure and safe operation of the steam turbine.


    Company Introduction


    Established in 1985,Zhangjiagang Hua Dong Boiler Co.,Ltd.(trading as HD Boiler),produces power plant; industrial; waste heat; waste incineration; biomass; organic heat carrier and electric steam boilers. Coupled with a comprehensive range of heating surfaces, HD Boiler brings to the market a unique service including boiler design , fabrication, installation, maintenance and replacement of boiler pressure parts.

    1. Fabrication area of 200,000 square meters
    2. 150 Engineers
    3. 600 Coded welders
    4. 60 Licensed Inspectors(NDT Level-III instructors)
    5. Class-A Licenses for Design and Manufacture Boiler
    6. ISO 9001:2008 Quality System
    7. ASME Certificate of Power Boilers
    8. ASME 'S','U' and NB stamp authorization


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