Tank leakage detection system

Details Tank leakage detection system Tank leakage detection system

1985-02-11

1986-07-22

Rowland, James L.

Communications: electrical

Condition responsive indicating system

Specific condition

73 492, 2065243, 2065245, 340624, 429163, 429176, G08B 2100

Patent

active

046022503

ABSTRACT:
This tank leakage detection system senses at an early stage the failure of a liner membrane made of a non-corroding material such as lead which allows the escape of a corrosive liquid contained within the tank to the space between the liner membrane and the outer steel walls of the tank. The detection system is made up of a small reservoir located on the bottom of the main tank which is in fluid communication with the space in the main tank between the outer steel walls and the liner membrane. The small reservoir extends laterally beyond one side of the tank and has a tubular projection extending upwardly along the side of the main tank which contains a float which is in turn connected via a linkage to a switch which controls an alarm system. The entry of corrosive fluid between the gap between the outer steel wall and the liner membrane of the main tank will drain into the small reservoir, causing the float in the tubular projection to rise in the tubular housing, thereby tripping the switch and activating the alarm system.

REFERENCES:
patent: 684697 (1901-10-01), Lloyd
patent: 1802124 (1931-04-01), Phifer
patent: 1838135 (1931-12-01), Derby
patent: 4524609 (1985-06-01), Sharp

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