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A superheater is a component that heats saturated steam in an industrial boiler, turning it into superheated steam. Our superheater guarantees that the superheated steam temperature will fluctuate to within an allowable range (normally varies from 540ºC to 550ºC) when the boiler is over loaded.
Superheaters and reheaters are important parts for the heating surfaces, used to increase steam temperature, aiming to improve steam enthalpy and further to increase the thermal circulation efficiency for power station.
The function of superheater is to heat saturated steam into superheated steam of some temperature. The superheater is divided into rear platen superheater, final superheater, vertical low temperature superheater, horizontal low temperature superheater, etc. according to its layout and heat transfer mode.
There are different types of super heaters with advantages and disadvantages as below:
Differences
| Type | Advantages | Disadvantages | Supporting method |
| Pendant-type | 1.Firm structural support | 1. Flow blockage by condensed steam 2. Needs slow restart to purge the water that accumulates in the bottom. | supported from above |
| Inverted-type | 1.Proper drainage of the condensed steam | 1. Lack the structural rigidity, especially in high speed gas flow | Supported 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 type | Usually supported in the vertical gas ducts parallel to the main furnace. |
For over 30 years, 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 European and American standards, ensuring a reliable performance.
The materials and tube diameter range of our super heater and reheater are indicated as below:
Materials for superheater & reheater
Carbon steel
stainless steel
nickel and special alloys
Tube diameter range of our superheater & reheater
32-42mm
