TESTING: PROVEN INTEGRITY TO ‘AS NEW’ STANDARDS
Every new and reconditioned pump is tested in SPP Pumps’ own extensive facility. Rigorous duty tests, are often witnessed by customers and contractors. Testing can be performed on both electric motor driven as well as diesel pumps.. With a 1.2 million litre well six metres deep, engineers can test pressures up to 50 bar; ows up to 2000 l/s; and at 50Hz powers up to 800kW at 415V and 2MW at 11kV, 10kV, 6.6kV, 5kV, 3.3kV - with generators available for even higher powers or voltages.
HYDRAULIC MODELLING & COMPUTATIONAL FLUID DYNAMICS (CFD) ANALYSIS OPTIMISING PUMP PERFORMANCE
Hydraulic modelling allows SPP Pumps’ engineering team to analyse and optimise any pump design to improve e ciency and performance. Computational Fluid Dynamics (CFD) analysis software predicts and veri es ow patterns across alternative designs – for instance impeller blade shapes and hydraulic passages. Pump sumps and intakes can be optimised to nd any vortex formations, air entrainment and to reduce swirl angles at the pump inlet. Reducing cavitation and allowing the pump to operate closer to its best e ciency point increases the life of the equipment. CFD analysis tools also predict pump performance, NPSHr and any cavitation before parts are manufactured. As well as developing new designs, the process is also used to re- engineer existing equipment to meet new demands. Cutting-edge tools available to SPP Pumps engineers include: • PTC Creo Parametric 3D modelling software - generates hydraulic shapes for new designs or for reverse- engineered parts created from scanned data. • Pointwise meshing tool - generates the mesh required for analysis • Open FOAM CFD analysis software - analyses and improves designs
• CFTurbo Pump design software – rapidly creates vane shapes based on duty requirements All nished products or models are physically veri ed in SPP Pumps’ extensive Coleford test facility.
BEST EFFICIENCY POINT ENSURING THE RIGHT SYSTEM MATCH A pump’s Best E ciency Point (BEP) should closely match the ow rate duty and application needs. Operating a pump away from the BEP will increase loads, wear, vibration, energy use and the risk of damage by cavitation. SPP pump and system assessments determine the actual installed pump operating regime and o er advice to optimise energy usage.
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