Liquefied Natural Gas (LNG) vaporizer is a kind
of a heat exchanger of changing phases from cryogenic
liquid state to gaseous state. Steam from boiler is
used to heat LNG.
Vaporizer must maintain constant pressure and flow
rate at the natural gas outlet in spite of external
disturbance. Therefore, vaporizer control system (VCS)
has a reliability and accuracy.
Input of vaporizer control system (VCS) is as follows:
LNG inlet temperature and pressure
NG outlet temperature and pressure
Steam inlet temperature and pressure
Steam outlet temperature and pressure
By controlling LNG inlet flow control valve , vaporizer
control system maintain NG pressure and flow rate constantly
according to input parameter variation.
Recently, worldwide LNG demand is increasing gradually,
so vaporizer and vaporizer control system market are
also proportional to LNG demand increasing. In this
situation, R&D center of General Marine Business
Inc. is developing vaporizer control system of reliability
by using simulator.
LNG vaporizer system is composed
of flow control valve, LNG pump, heat exchanger, pipeline
and control system
