Air vent device for heat exchange channel in hydrogen storage / release mechanism

摘要

PURPOSE:To rapidly discharge the air mixed in a pipeline and to smoothly circulate heat-exchange water by collecting the air mixed in the heat-exchange water passage at a collecting place, and discharging the collected air to the outside through an air vent. CONSTITUTION:An engine 1 is cooled by cooling water, and the generated hot water is sent to two alloy tanks 5 through a pump 2, a hot-water pipeline 3, and a supply-side electromagnetic selector valve 4 to heat the metal hydride contained in the tank 5 and to generate gaseous H2. The water is then sent to the engine 2 through a return pipeline 6 and a return-side electromagnetic selector valve 7 to cool the engine. When the fact that the liq. level on the upper end of the pipeline 6 is lowered below a specified value is detected by a level sensor 18 provided on the downstream side of a discharge-side stop valve 14 of the pipeline 6, the retention of air is judged by a controller 15, the stop valve 14 is opened by the controller for a preset short time, and the air is discharged to the drain side. Besides, the uppermost liq. level in a radiator 8 is detected by a level sensor 19, a stop valve 10 is opened for a short time when the retention of air in the radiator 8 is confirmed by the controller 15, and the air is discharged into a drain tank 11.