Liquid storage tank leak detection system
Patent
·
OSTI ID:6310337
An apparatus is described for determining whether fluid is leaking from a fluid storage tank having a fill pipe, the apparatus comprising: a first vertical tube adapted to be inserted into the tank tested via the fill pipe and having a length substantially equal to the diameter of the tank sealed at the bottom; a second tube adapted to be vertically positioned under conditions of use of the apparatus having a predetermined diameter; means for connecting the second tube to the top of the first tube to define a fluid container; means for filling the first and second tube with fluid to a predetermined level in the second tube; the second tube has a diameter relative to the diameter of the fill pipe such that any change in the level of fluid in the second tube and the fill pipe result from a change in temperature of the fluids are proportional; and means for determining any deviation from a proportional change in the fluid level in the second tube and fill pipe where any such deviation is indicative of a leak of fluid from the tank.
- Assignee:
- Exxon Research and Engineering Co., Florham Park, NJ
- Patent Number(s):
- US 4679425
- OSTI ID:
- 6310337
- Country of Publication:
- United States
- Language:
- English
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