Leak detection system
Leak detection system (also referred to as LDS) operating principle is based on static and dynamic pressure measurements and pipeline flow control by means of primary transducers with further processing of the results obtained by one of the following methods:
- balance method;
- pressure profile;
- pressure wave;
- acoustic algorithm.
Major system function is leak detection in the main pipeline (hereinafter referred to as MP) and leakage position finding.
% of maximum flow
|Leak detection time, min||Leak localization tolerance, m||False responses maximum amount
per month/ per year
“LDS Detector” component performs “leak” and “false response” event detection along with the constant analysis of algorithms use results.
As the minimal sufficient data is obtained, “LDS training” program automatically sets optimal parameters for LDS detection algorithms. The purpose of the program is to analyze real records and external impacts model signals in a real-time mode in order to estimate system operation quality under various set parameters and to determine optimal detection level. The results are represented by output signals diagrams, that characterize the event energy parameters.
The possibility of leak non-detection by LDS is 0,01, while the reliability of leak detection event (i.e. false alarm possibility) is 0,001.