Technology for the palm oil industry
Technology for the palm oil industry
THT high pressure steam generators in type NDK
natural circulation procedures are applied where
ever high process temperatures with steam are
required. Various application areas are produced
for the palm oil and bio-diesel refinery sector. The
new generation high-pressure steam generators
further developed by HTI-Gesab have created
basic improvements and thus advantages for the
customer.
Oil/Gas-fired natural steam boiler Type NDK
Radiative heat transfer boilers for high-pressure steam in the natural circulation system
without the use of an additional feed water or forced circulation
pump for the pressure range of 80 bar and 95 bar. The boiler
pressure chamber consists of vertical rising pipes which are welded
into ring headers top and bottom and lie gas-tight close together.
The pressure chamber consists of two pipe baskets which are connected
with each other via steam and condensate pipes. The pipe
baskets are installed tension-free in a gastight welded flue gas casing.
The boiler can only be delivered in standing design as the natural
circulation system does not function in lying design. The boiler
is equipped with a sturdy steel substructure. It is therefore not necessary
to lay a foundation on-site. The boiler can be erected on a
concrete floor with normal load capacity. The load per area unit is
between 1-2 kg/cm˛. The demountable boiler allows easy and thorough
cleaning of the combustion chamber and the two flues. The
boiler is fitted with heat insulation of mineral wool which is clad in
structured aluminium sheet. The choice of material and manufacture
are compliant with valid regulations for steam boilers.
A pressure test certificate is obtained from the TÜV for every boiler.
The basis for the design and construction is the Technical Regulations
for Steam Boilers (TRD). All welds are conducted in accordance
with DIN 8563, Part 3 evaluation group CS and DIN 8562. The boiler
can only be operated in a closed steam-condensate circulation.
The necessary feed water must correspond with the requirements
of TRD 611. The pressure chamber is manufactured from seamless
pipes, material St35.8.
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