UME Test Facilities for Oil Flow Measurement up to 300 m~(3)/h

摘要

National Metrology Institute of Turkey, UME, has completed the new oil flow rate measurement systems. In this article, UME primary and secondary oil flow measurement systems will be described briefly. Oil flow laboratory was designed for the calibration, testing, and type approval of liquids other than water. It utilizes flow meters with the flow rates up to 300 m~(3)/h and capable of testing of valves and pumps. There are two 1 m~(3) and one 4 m~(3) oil reservoirs in the laboratory for different flow rate measurements with various type of oil. Three stainless steel pumps with the frequency converters can supply flow rates from 0 up to 300 m~(3)/h. Pumps have capability of supplying required flow to calibration system directly or send oil to tower head tanks, which are located on the top of the tower, with capacities of 4, 2 and 1 m~(3). This system aims to decrease system measurements error due to pressure pulses created the tower is about 35 m from the laboratory floor level. Oil can be heated up to 80°C by using heat exchangers. There is three test lines on the oil flow rate measuring system as: Large Test Line (DN 300), Medium Test Line (DN 100) and Small Test Line (DN 50). There are three weighting-time oil flow measurement systems and one of them has dead weight tester with 2.5 tons, 1 ton and 150 kg. DN 300, DN 100 and DN 50 ultrasonic type reference flow meters with the maximum capacities 250 m~(3)/h are also placed on the systems. The uncertainties of all the reference flow meters are about 0.2 percent. All the measuring lines were connected from one to others with the actuator valves and controlled by automation system. There are two oil drainage system transfer pumps and packaged type oil separator with the level controllers. This system is used to clean the oil flow measurement systems. Feeding, and controlling of the oil flow to the measuring lines and testing of the flow meters are being performed by the automation systems.