About
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In September 2014, a modern calibration complex for the liquid hydrocarbon flow transmitters metrological support was put into operation and successfully operates at Neftegazmetrologiya LLC (Belgorod). This complex for the first time enabled the Russian MI manufacturers and metrological organizations to conduct tests, verification and calibration the liquid hydrocarbons flow transmitters, in accordance with the requirements adopted in international metrological practice and contained in both international and national standards:
GOST R 8.9082015 State system for ensuring the uniformity of measurements. Measuring instruments of volume flow of oil and oil products. Tests, verification and calibration with provers;
OIML (MOZM) R 1171. Dynamics measurement systems for liquids other than water. Part 1. Metrological and technical requirements. Edition 2007.
OIML (MOZM) R 1172. Dynamics measurement systems for liquids other than water. Part 2. Metrological controls and performance test. Edition 2014;
API MPMS Chapter5 Metering Section2 Measurement of Liquid Hydrocarbons by Displacement Meters.
API MPMS Chapter5 Metering Section 3 Measurement of Liquid Hydrocarbons by Turbine Meters.
API MPMS Chapter 5.8. Measurement of liquid Hydrocarbons by Ultrasonic flow Meters. Second edition, November 2011.
These standards prescribe to carry out the testing, verification and calibration of flow transmitters in the entire range of flow and viscosity corresponding to the transmitters operating conditions. Prior to the creation of the NGM LLC calibration complex, it was possible to ensure compliance with the requirements of these standards for testing, verification and calibration only by performing these works in foreign calibration laboratories.
Operation
• Flow range: 0,06 …3100 м3/h;
• Viscosity range: 3 – 150 cSt;
• The sizes of verifiable flow transmitters: 25 500 mm;
• Pressure range: 0,2 1,6 MPa.
The metrological complex reproduces and transmits units of volume and mass of liquid according to the State verification scheme for measuring the volume and mass of liquid in the flow based on the State Primary Standard GET 63-217, GET 216-2018.
All the equipment is placed inside specially designed and constructed premises.
PPUs are located under the canopy and equipped with thermal insulation.
The metrological complex main technical data
The complex includes:
• PPU OGSB C 800 m3/h and extended uncertainty of U =0,03% (k=3);
• PPU OGSB with flow rate of 3100 m3/h and extended uncertainty of U =0,03% (k=3);
• Compact prover«BROOKS» with flow rate of 57m3/h and extended uncertainty of U =0,03% (k=3);
• 1 m3 volumetric vessel with extended uncertainty of U=0,01% (k=2);
• First class density standard 7835, error 0,13 kg/m3;
• VSPM1500 Special scales for volumetric vessels calibration, error 0,005%.
Technological part:
• Metering Computing Complex (MCC) IMS07;
• Metering lines unit (MLU);
• Four liquid storage tanks with volume of 50 m3 each???;
• Liquid transportation pipelines;
• Temperature stabilizing device – TRANE RTAF 179 type chiller;
• Special heat exchanger for in-flow liquid temperature stabilization.
The stabilization system and the heat exchanger allows you to maintain the physical and chemical properties of working liquids, namely, it stabilizes the temperature and viscosity of the working liquid, in the required temperature range, during verification/calibration and testing of measuring instruments.
The Neftegazmetrology LLC calibration complex measuring capabilities are confirmed by the National Metrological Institute VSL (The Netherlands), the complex is included in the international register of calibration stations, which is confirmed by the VSL certificate No. 39332673 dated 11.12.2015.