Authors & Affiliations
A.I. Leypunsky Institute for Physics and Power Engineering, Obninsk, Russia
Three types of magnetohydrodynamic devices using in liquid metal circulating loops are known. These are electromagnetic pumps, flow meters, and throttles. Electromagnetic pumps and throttles are induction type, as a rule, using alternating current and alternating magnetic field. Electromagnetic flowmeters for liquid metals, as a rule, are conduction type using direct current and permanent magnetic field. Every of each device serves one function only. Operating principle and some designs of universal conduction magnetohydrodynamic devices, which are possible provide simultaneously two of three functions, (pump and flow meter, or throttle and flow meter) are described at the paper. They are called pump-flow meter and throttle-flow meter. These devices are proposed for small experimental facilities with flow rate of liquid metal 1–500 l/h and for auxiliary circulating loops of big facilities. Theoretical basis of fulfilment of two function simultaneously and needed mathematical formulas presented at the paper. Three variants of pump-flow meters tested and corresponding results are described.
magnetohydrodynamic device, pump-flow meter, throttle-flow meter, liquid metal, permanent magnet, head-flow rate characteristic, graduation.
- Loginov N.I. Sposob izmereniya raskhoda zhidkogo metalla cherez protochnuyu chast' tsirkulyatsionnogo kontura [Method for measuring the flow rate of liquid metal through the flow part of the circulation circuit]. Patent RF, no. 2490597, 2013
- Aksenov Yu.V., Berenskiy L.L., Golyuk S.V., Kumskoy V.V., Loginov N.I. Ustroystvo dlya izmereniya raskhoda zhidkogo metalla na osnove elektromagnitnogo nasosa [Device for measuring the flowrate of liquid metal based on an electromagnetic pump]. Patent RF, no. 133289, 2013.
- Pyatin Yu.M. Postoyannye magnity. Spravochnik [Permanent magnet. Handbook]. Moscow, Energy Publ., 1971. 488 p.
- Loginov N.I. Konduktsionnyy nasos-raskhodomer [Conduction pump-flowmeter]. Patent RF, no. 2714504, 2020.