| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a vapor recovery apparatus including liquid shut-off means which can be easily added to an existing vapor recovery apparatus.SOLUTION: An underground tank 1 is capable of unloading by a lorry 3 via an oil feed pipe 2, and an upper space 1a of the tank is communicated to atmospheric air by a vent pipe 4. A recovery line 5 is connected to the vent pipe 4 via a branch pipe 4a, and liquid shut-off means 6 which serves as a strainer, an electromagnetic valve 7, a compressor 8 and a vapor condenser 9 are connected to the line, a recovered gasoline return line 11 is connected to a liquid discharge port 9a of the vapor condenser 9 via a return valve 10, and communicated to the oil feed pipe 2. The liquid shut-off means 6, air feeding means 8 and the vapor condensing means 9, which activate a valve element by fluid pressure caused by inflow of fuel oil from upstream by a pipeline 13, are connected via the branch part 4a to the vent pipe 4 whose one end is connected to the underground tank 1.</p> |
