| 摘要 |
PURPOSE:To make the maintenance of an apparatus easy by providing a liquid driving part within a tank and providing the driving source of the liquid driving part outside the tank, and to prevent the outflow of valuable or dangerous liquid present in the tank. CONSTITUTION:A circulating apparatus is composed of a liquid driving part D by which liquid within a tank is circulated, and a driving source E connecting to the liquid driving part. The liquid driving part D is provided within the tank 1. The driving source E is arranged outside the tank 1. Closing valves 10, 11 are provided at the inlet and the outlet of a tube constituting part of the liquid driving part D so that when the inlet and the outlet are closed by the valves 10, 11 the tube is isolated from the liquid within the tank. For example, the liquid circulating apparatus which is inserted into a boss 4 and fixed to the tank 1, is composed of the liquid driving part D and the driving source E by which impellers 17 of the driving part are rotated. The driving part D is composed of an oblique T-tube and an internal structure F part of which is inserted into a tube 5. |
