| 摘要 |
PURPOSE:In a tank having such structure where a bag body is provided in a hollow rigid member (tank) to feed liquid in and out of said bag body, to enable detection of internal abnormality such as water leakage or breaking of bag body from outside, by providing a liquid detecting means in an air encapsulated space between the exterior wall of the bag body and the interior wall of the hollow rigid member. CONSTITUTION:A bag body 2 made of soft resilient material is provided in a hollow rigid member 1 and air is fed into a gas encapsulating space 3 which is then sealed tightly. A conduit 9 conducting to said space 3 is provided at the outside of a tank 1 while a liquid detector 8 is provided. Upon breaking of the bag body 2 to flow out liquid into said space 3, said bag body 2 will expand in the tank 1 by liquid pressure to push up liquid which has flowed out along the inner wall of the tank 1 and even slight amount of liquid will flow into said conduit 9 of lift a ball 10 (having lighter specific gravity than said liquid) provided in said detector 8 thus to enable detection of abnormality of the bag body 2 from the outside of tank 1. |
