METHOD AND DEVICE OF FILLING CONTROL IN HIGH PRESSURE HYDROGEN TEST EQUIPMENT AND HIGH PRESSURE HYDROGEN FILLING EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To provide a method of filling control in high pressure hydrogen test equipment and high pressure hydrogen filling equipment capable of applying pressure at a constant pressure rising rate without an excessive rise in temperature of an object to be tested, with a simple structure.

SOLUTION: A high pressure compressor 1, a cooling part 2, the object to be tested 3, and a high pressure buffer tank 4 are connected by a gas supply passage 5 to form a closed circuit. A discharge port 1a and a suction port 1b of the high pressure compressor 1 are connected by a bypass passage 8 with a pressure adjusting valve 7 interposed therein. A flow passage opening/closing valve 9 is arranged on a downstream side relative to a bypass passage branch part 8a on the discharge side of the high pressure compressor 1. A pressure adjusting valve 10 is arranged on an upstream side relative to an inflow port to the object to be tested 3. The opening of the pressure adjusting valve 10 is controlled so as to make the pressure rising rate constant.

COPYRIGHT: (C)2011,JPO&INPIT