FIELD: heating.
SUBSTANCE: water vapour (working medium) is supplied into a vessel continuously with the levels of internal pressure and temperature of the working medium being kept constant. The vessel surface is scanned by a heat sensitive device and the heat contrast is recorded. The sighting axis of the heat sensitive device is set at an angle to the surface being controlled. Temperature change is calculated depending on the specified permissible leakage rate. Values of measured temperature changes at the controlled surface are compared to the design value of the temperature change. At the design temperature value exceeding the measured value a presence of a defect and its location are considered.
EFFECT: improved reliability of leakage detection.
2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF CHECKING ARTICLE FLUID TIGHTNESS | 0 |
|
SU905682A1 |
| METHOD FOR CARRYING OUT PNEUMATIC AIRTIGHTNESS TESTS OF THREE DEGREES OF PROTECTION OF THE LOWER DRAIN DEVICE OF AN OIL AND PETROL TANK CAR | 2022 |
|
RU2796250C1 |
| THERMAL METHOD OF DIAGNOSING OF TECHNICAL CONDITION OF VESSELS WORKING UNDER EXCESS INTERNAL PRESSURE | 2002 |
|
RU2243519C2 |
| SUPERFLUID HELIUM CRYOSTATTING SYSTEM | 1990 |
|
SU1816068A1 |
| PROCEDURE ESTABLISHING GAS LEAKAGE FROM GAS MAINS BY AIRBORNE DIAGNOSTIC SYSTEMS AND BED MODELING GAS LEAKAGE | 2000 |
|
RU2201584C2 |
| METHOD FOR DETECTION OF GAS LEAK POINT IN UNDERGROUND PIPELINE (VERSIONS) | 2007 |
|
RU2365889C1 |
| METHOD OF INCREASING OF VALIDITY IN TIGHTNESS CONTROL | 2013 |
|
RU2542684C1 |
| METHOD OF EVALUATION OF PARAMETERS OF FRACTURES OF FORMATION HYDRAULIC FRACTURING FOR HORIZONTAL WELL | 2020 |
|
RU2741888C1 |
| METHOD FOR DETERMINATION OF INFLUX PROFILE AND BOREHOLE ENVIRONMENT PARAMETERS IN MULTILAY WELL | 2009 |
|
RU2505672C1 |
| METHOD FOR TRANSPORTING CRYOGENIC LIQUIDS | 2021 |
|
RU2761148C1 |
