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Boiler Pressure Parts High Temperature Superheater Wiht 304 Shields ASME

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Boiler Pressure Parts High Temperature Superheater Wiht 304 Shields ASME

Brand Name : HD Boiler
Model Number : Secondary Superheater
Certification : ISO9001 , SGS , ASME "S" "U",EN
Place of Origin : China,Zhangjiagang
MOQ : 1Set
Price : Negotiable
Payment Terms : L/C, T/T, Western Union,
Supply Ability : 1200 Tons / Month
Delivery Time : 35Days
Packaging Details : Seaworthy Packing
Fuel : Coal
Type : Energy saving
Range of Applications : US Power Plant
Specification : Customized
Surface Treatment : With 304 Shield
Material : Stainless Steel
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Boiler Pressure Parts High Temperature Superheater Wiht 304 Shields ASME Standard

Working Principle

Superheater is the part that heats the steam from the saturation temperature to the superheater by the boiler. It is also called the superheater.
Superheater can be divided into convection type, radiant type and semi-radiant type according to heat transfer mode;
According to the characteristics of the structure, it can be divided into serpentine tube type, screen type, wall type and wall type.
They all consist of a number of parallel pipes and inlet and outlet manifold.
Most industrial boilers do not have superheaters because many industrial processes and utilities require only saturated steam.
Superheaters are generally installed in power stations, locomotives and Marine boilers to improve the thermal efficiency of the entire steam power plant.

Super heater types:
1. Radiant super heater: it is the earliest type of super heater and it is located above or behind banks of water tubes to protection them from direct flam or fire.
Parameters that increases the convection

a. Increasing the fuel-and air flow (combustion gas flow)
b. Increasing the mass flow rate of the steam

Radiation is mainly dependent on the flam temperature. as the steam flow rate increases the exit temperature become lower.
Radiant super heater
They are placed exposed to the heat source whcih requires the improvement of metal temperatures.

Radiant and convetive super heaters and reheaters are used for high temperature steam.
The accessory of high temperature radiant steam super heater in boiler

It is made up of snake-like tubes (carbon steel, alloy steel or heat-resistant steel, etc.) and collection boxes and other supporting material. Tubes generally have φ32, φ38, φ42 or other types of specifications, according to user's needs separately.

They are the sane as the super heaters but as their exit temperature is a little bit less than super heaters and their pressure is 20% -25% less than the super heater, they can stand less quality material alloys.

Steam super heater is consisted of dense tube coils and is placed in the flue under the tempearture 450ºC-1000ºC.
For power plant boiler capacity over 10Mpa, platen and coiled superheater are usually adopted.

What are the differences of 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.


Setting Information
structurehorizontal or vertical
materialcarbon steel, alloy steel
tubesφ32, 38, 42, etc.
Warranty18 months

Design structure

  • 1. heating saturated steam, temperature up to 900 degree C.
  • 2. high efficiency, >90%.
  • 3. high speed heating.
  • 4. design with stainless steel.
  • 5. long design service life, 15 years.

Send us required technical data, such as steam capacity, presure, required temperature etc. We will design accordingly.

HD Boiler offers a best in class facility

For over 30years, Hua Dong Boiler has been consistently innovating and improving our boiler superheaters and reheaters.The improvements in bending,welding and design ensure our products meet both Euorpean and American standards, ensuring a relabile performance.

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