Patent · US Expired

Device and method for leakage detection

US5992217A · kind A · utility

16Cited by

1References

16Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Peter Jax · Hannover, DE
Walter Knoblach · Forchheim, DE

Key dates

Filing date	Sep 25, 1998
Grant date	Nov 30, 1999
Priority date	—
Expiry date	Sep 25, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/34
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A device and a method for leakage detection and leakage location in an installation, in particular in a pipeline, include a collecting line which is permeable to a substance and is connected to a pump and to a sensor for the substance. A metal wire is disposed outside and along the collecting line and is connected to a negative pole of a direct current source. When a solution, for example salt water, emerges from a leak in a pipeline, a gas, in particular hydrogen, is obtained by electrolysis at the metal wire. A concentration maximum of the gas in the collecting line is then detected and located.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.