원전수출정보지원시스템K-NEISS, k-neiss, kneiss, nu-gpt, NU-GPT, nugpt

• Gland Condenser is used to collect condensate and
calories of steam that used for sealing steam turbine, and it
also creates a state of vacuum to help discharge of steam.
The thermal energy is transformed to the kinetic energy
as steam of high pressure-high temperature rotates steam
turbine. Thus, Seal Steam System is necessary to prevent
steam leakage from steam turbine and air infiltration into
steam turbine. Gland Condenser collects condensate and
steam calories as well as creation of vacuum state inside of
Seal Steam System, and it also steam discharge.

• Surface Condenser generates vacuum backpressure to
ensure output of turbine, and also condenses a wastesteam
while located at the end of steam turbine which
is generally used in industries such as power generating
in power plant, compressing in chemical plant as well
as propelling of LNG tanker. Depends on the location of
Surface Condenser against turbine, it is classified into Topentry
type and Side-entry type. The circular type surface
condenser is used for small size and medium size while
square type surface condenser is used for large size such
as power plant.

• Oil Heater is used to heat a fuel oil and lubricant oil for ships
by using the steam generated from boiler. There are several
type of oil heaters in the market: M/E & G/E F.O. Heater
breaks the viscosity of fuel oil, while increase inflammable
point; H.F.O. Purifier Heater breaks the viscosity of heavy
fuel oil, and also increases oil temperature up to the degree
which helps purification process. ; and L.O. Purifier Heater
increases oil temperature up to the degree which helps
purification of lubricant oil used in engine.

• Lube Oil Cooler is used to chill lubricant oil that used for
lubrication process of various rotating equipment such as
generator and compressor in plant, by using cooling water.
Also, 3-way valve is adopted for timely replacement of
Working Cooler and Stand-by Cooler.
Generally, it is manufactured in Shell & Tube type, but
Plate-type is also available.

FGSS

• LNG that is being supplied from RV/FSRU(combination
of LNG Tanker, Re-gasification facility and Gas unloading
facility) by HP LNG Pump, is vaporized by HP Vaporizer.
• The seawater is utilized as a source of heat that vaporizes
LNG, and also if the seawater temperature falls down, it will
be heated by with Seawater Heating System. In such case,
DongHwaEntec’s Seawater Heater may be used.

• I nter Cooler is installed at the end of compressor to chill the
compressed gas. This heat-exchanger chills the air or
gas discharged from compressor in industrial ASU plant
or oil & gas plant, and removes moisture accordingly.
Consequently, the efficiency of compressor can be
improved and energy can be saved. These air or gas are
compressed by cooler at the last stage, and then to be
cooled to its required temperature after passing through
the Cooler.

• After Cooler is installed at the end of compressor to chill
the compressed gas. This heat-exchanger chills the air or
gas discharged from compressor in industrial ASU plant
or oil & gas plant, and removes moisture accordingly. The
allowable pressure drop is very limited, and demister is
installed inside to remove moistures.
• Also, for increasing the efficiency of heat-exchanger, the
Plate Fin type or High Fin type is applied to where air or gas
is being taken or discharged.