Method and apparatus for leak detection in horizontal cylindrical storage tanks
US8468876B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2010 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Jan 9, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/3263
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A storage tank leak detection system for detecting and measuring very small leaks in large horizontal cylindrical storage tanks. Embodiments include two highly precise quartz crystal type pressure transducers held at a constant temperature. A bubbler to achieve access to the hydrostatic pressure at the tank bottom and just below the liquid surface. First transducer and bubbler are used to measure fluid mass while second transducer and bubbler are used to measure fluid density then used in combination with data correction and regression techniques to yield a storage tank leak detection system for use in horizontal cylindrically shaped tanks with an extremely low leak detection threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.