CONTROL METHOD OF A GAS PRESSURE CONTROL DEVICE OF A PRESSURE VESSEL WHICH CAN CONTROL THE PRESSURE OF A PRESSURE VESSEL

摘要

PURPOSE: A control method of a gas pressure control device of a pressure vessel is provided to make the manufacture and maintenance, repair and operation convenient by rapidly controlling the pressure of a pressure vessel, even if the pressure of a compressed gas is unstable.;CONSTITUTION: When the pressure of a pressure vessel is controlled to be a desired pressure(201), a pressure valve or a depressurization valve is opened until a pressure value, which is originally input in a manometer, becomes a target valve. The pressure valve or the depressurization valve is closed at the desired pressure. The pressure difference between the manometer value and the target pressure is calculated. The pressure valve or the depressurization valve is opened, until the calculated pressure difference reaches the target valve. The valve opening and closing is repeated until reaching the target value.;COPYRIGHT KIPO 2010