RLM EVO High Performance - Plug Fans Impeller with true airfoil blades

Transcription

1 RLM EVO High Performance - Plug Fans Impeller ith true airfoil blades Issue 1 1

2 RLM EVO Ready for the next generation Overall static RLM EVO ErP-Guideline 9/125/EG We have accelerated impeller technology ith the RLM Evo, the ne generation in our RLM range. The result: More and reduced turbulent conditions. And that is highly effective as RLM Evo ensures: K loer energy consumption K loer costs K loer noise levels Nicotra Gebhardt the professionals in profiling Nicotra Gebhardt is the first port of call for profiled impeller blades. We brought the first hollo section airfoil blades onto the maret in Since then e have been achieving the absolutely best efficiencies in our fans in every application. Our engineers and technicians use the latest simulation programmes to develop and test ne designs. You can rely on the noledge and experience of specialists. Don t ait until 215 Fans must reach ever higher system efficiencies. The EU s ERP guideline ill prescribe compulsory values in 213 and ill increase them again in 215. RLM Evo, the ne generation of high performance centrifugal fans by Nicotra Gebhardt, already achieved higher in 211 than that required as from 215. The plus factors of the ne Generation L Unparalleled system for free running centrifugal fans RLM Evo sets a ne standard in. No other free running centrifugal fan reaches higher system. L Innovative blade and impeller shaped for highest efficiencies The entire shape of the impeller as optimised using a real turbulence profile for the blades. This ensures that the impeller reaches as yet unparalleled high and taes the top position in aerodynamics. L Optimal pressure and turbulence conditions The re-designed impeller shape maes optimal pressure and minimised turbulence conditions in the impeller possible. The inclined leading edge of the blade builds pressure more evenly minimising entry and exit losses. L Lo operating cost brushless DC motor The brushless DC motor used by Nicotra Gebhardt is maredly more efficient than conventional drives: It reduces the energy consumption of the fan for partial loads by up to 5 %. L Much quieter Thans to their ne design the blades and the impeller run ith less noise. The entire fan is thus much quieter. L Easy to integrate Despite their improved performance figures, fans in the RLM Evo range have the same external dimensions and significant operational data as earlier generations of centrifugal fans. They can therefore be easily and quicly exchanged in existing systems or integrated in available machine concepts. L Easy maintenance Thans to the construction method and direct drive the RLM Evo is practically maintenance-free. 2

3 RLM EVO The evolutionary elements L The perfect profile At the heart of the RLM Evo are the six blades ith rounded inclined leading edges and re-designed hollo profile. They ensure minimised turbulence conditions in the impeller thus enabling the extraordinary high of the fan. Due to their special shape, the blades build up pressure evenly at all sections. The result: Air circulates around the blades better and the turbulence tends to dissipate. This increases not only but also causes significantly loer noise. L The innovative high performance impeller The re-designed high performance impeller maes RLM Evo unbeatable in matters of. To ensure this e optimised the entire shape. The special shape of the cover disc alone greatly improves turbulence. The idth and diameter of the impeller are in an ideal ratio to each other. The ne hollo profile of the blades ensured that the eight of the impeller could be maredly reduced and that, at the same time, a high degree of stability could be reached. Pressure losses on entry ere greatly decreased. And at the exit, here losses had been sustained before, the ne impeller shape ensures additional available static pressure. L The tailored drive The ne generation of our free running centrifugal fans not only have a perfect impeller but also a precisely matched drive. For this reason, RLM Evo, already an innovation in itself, is available ith a cutting edge brushless DC motor. Together ith such a drive, the RLM Evo delivers high performance ith particularly lo energy consumption. Whether during start-up or under base, partial or full load, the exceeds that of a conventional AC motor in every situation. Our drives ith brushless DCs reach efficiencies of class IE3 and higher. Typenschlüssel The type code of every fan is composed as follos. Example: RLM E W-17 Index for motor size Motor: - W = 3-phase current - D = 3-phase current - = Brushless DC motor ith integrated control unit - = Brushless DC motor ith external control unit N of poles: - 2 = 2-poles - 4 = 4-poles - 6 = 6-poles Impeller diameter (nominal mm) Connecting diameter (nominal 355 mm) Specification - 6 = Complete Plug Fan module (motor impeller unit, supporting plate ith inlet cone and motor stand on baseframe) Impeller geometry (Series RLM-Evo) Drive type - M = Standard motor 3

4 RLM E RLM E W / / L 2 34 RLM E W / / S 2 3 RLM E W / / M 2 26 RLM E W / / M 2 24 RLM E D / / M 2 21 RLM E / RLM E * * * Motor connected to inverter type: Danfoss; VLT HVAC Drive FC 12; 1.5 W. 2W 6 % 63 % 63 % RLM E max η se =57% η se =59% RLM E = W = = RLM E max η se =59% η sa =76% η se =6% η se =57% η se =59% N = 1/min η se =59% η se =5% η sa =58% η se =46% η se =5% N = 2 1/min N = 33 1/min N = 3 1/min N = 4 1/min 3 5 RLM E ø1 Motor ** max ZKE ZKE (ATEX) ZSG

5 RLM E RLM E W / / L 2 36 RLM E W / / S 2 32 RLM E W / / M 2 27 RLM E W / / M 4 26 RLM E D / / M 4 25 RLM E / RLM E * * * Motor connected to inverter type: Danfoss; VLT HVAC Drive FC 12; 2.2 W. 2W RLM E = W = = 6 % 65 % 65 % RLM E max RLM E max η se =57% η se =65% η sa =76% η se =6% η se =57% η sa =58% η se =46% η se =52% N = 19 1/min N = 2 1/min N = 29 1/min N = 33 1/min N = 377 1/min 3 5 RLM E ø1 Motor ** max ZKE ZKE (ATEX) ZSG

6 RLM E RLM E W g L 2 4 RLM E W / / L 2 38 RLM E W / / L 4 34 RLM E W / / S 4 33 RLM E W / / M 4 3 RLM E / RLM E * * * Motor connected to inverter type: Danfoss; VLT HVAC Drive FC 12; 3. W. 2W 62 % 67 % 67 % RLM E max RLM E max η se =58% RLM E = W = = η sa =76% η se =67% η se =58% η sa =58% η se =48% η se =52% N = 17 1/min N = 1/min N = 2 1/min N = 3 1/min N = 343 1/min RLM E ø1 Motor ** max ZKE ZKE (ATEX) ZSG

7 RLM E6-354 RLM E W g M 2 54 RLM E W g L 4 58 RLM E W g L 4 49 RLM E W / / L 4 44 RLM E W / / S 4 41 RLM E W / / M 4 37 RLM E / RLM E * * * Motor connected to inverter type: Danfoss; VLT HVAC Drive FC 12; 3. W. 2W 63 % 67 % 67 % η se =59% RLM E6-314 = W = = RLM E max RLM E max η sa =76% η se =67% η se =59% η sa =58% η se =48% η se =52% N = 15 1/min N = 19 1/min N = 23 1/min N = 27 1/min N = 37 1/min RLM E ø1 Motor ** max ZKE ZKE (ATEX) ZSG

8 RLM E6-445 RLM E W g S 4 77 RLM E W g M 4 66 RLM E W g L 4 64 RLM E W g L 4 54 RLM E W / / L 4 5 RLM E W / / S 4 46 RLM E / RLM E * * * Motor connected to inverter type: Danfoss; VLT HVAC Drive FC 12; 4. W. 4W 65 % 68 % 68 % η se =6% RLM E6-445 = W = = RLM E max RLM E max η sa =77% η se =65% η se =68% η se =6% η se =52% η sa =56% η se =47% N = 1/min N = 1/min N = 21 1/min N = 2 1/min N = 276 1/min 1 RLM E ø1 Motor ** max ZKE ZKE (ATEX) ZSG 4-8

9 RLM E6-455 RLM E W g S 4 88 RLM E W g M 4 77 RLM E W g L 4 71 RLM E W g L 4 62 RLM E W / / L 4 57 RLM E / RLM E * * * Motor connected to inverter type: Danfoss; VLT HVAC Drive FC 12; 5.5 W. 4W 65 % 68 % 68 % η se =6% RLM E6-455 = W = = RLM E max RLM E max η sa =77% η se =65% N = 13 1/min η se =68% η se =6% η sa =56% η se =47% η se =52% N = 1/min N = 19 1/min N = 1/min N = 243 1/min 1 RLM E ø12 Motor ** max ZKE ZKE (ATEX) ZSG

10 RLM E6-556 RLM E W g M RLM E W g S 4 1 RLM E W g M 4 87 RLM E W g L 4 81 RLM E W g L 4 72 RLM E W / / L 6 78 RLM E / RLM E * * * Motor connected to inverter type: Danfoss; VLT HVAC Drive FC 12; 4. W. 4W 66 % 67 % 67 % η se =61% RLM E6-556 = W = = η sa =77% η se =66% RLM E max RLM E max η se =61% η se =67% η se =5% η sa =56% η se =48% N = 11 1/min N = 1/min N = 17 1/min N = 195 1/min N = 1/min 1 RLM E ø12 Motor ** max ZKE ZKE (ATEX) ZSG 4-5 1

11 RLM E RLM E W g M RLM E W g M RLM E W g S 4 11 RLM E W g M 4 99 RLM E W g S 6 11 RLM E W g M 6 1 RLM E / RLM E * * * Motor connected to inverter type: Danfoss; VLT HVAC Drive FC 12; 7.5 W. 4W 67 % 68 % 68 % RLM E = W = = RLM E max RLM E max η sa =77% η se =67% η se =68% η se =51% N = 1/min N = 1/min η sa =56% η se =49% N = 145 1/min N = 17 1/min N = 196 1/min 1 2 RLM E ø12 Motor ** max ZKE ZKE (ATEX) ZSG

12 RLM E RLM E W g M RLM E W g M RLM E W g M 6 15 RLM E W g M RLM E W g S RLM E / RLM E * * * Motor connected to inverter type: Danfoss; VLT HVAC Drive FC 12; 11 W. 4W 67 % 68 % 68 % RLM E max RLM E max RLM E = W = = η se =68% η sa =77% η se =67% N = 9 1/min N = 11 1/min η sa =56% η se =49% η se =51% N = 13 1/min N = 15 1/min N = 171 1/min RLM E ø12 Motor ** max ZKE ZKE (ATEX) ZSG

13 RLM E6-2528/-6371 Specification Direct driven high-performance centrifugal fan RLM-Evo Complete assembly module ith highest system, specifically developed and optimized for use ithout a spiral casing. Nely developed high performance impeller ith optimized shape and highest, comprising six bacard curved hollo section true aerofoil blades ith real turbulence profile and rounded, inclined blade leading edges, from cover disc to bearing disc, for optimal impact over the entire idth of the blade. Co-rotating radial diffuser ith optimized exit curving on the cover disc to enhance. Impeller made of high tensile sheet steel in an automated manufacturing process, robotic elding, degreased, iron phosphated and coated ith a high quality epoxypolyester mixed poder, fastened ith a clamping brush to the shaft of the motor, balanced statically and dynamically according to DIN ISO 194, specification G2.5, based on the maximum speed from size 455. System inlet cone made of galvanized sheet steel for optimal inflo to the impeller, equipped ith flo measuring device IMV as a standard feature. Attached internal rotor motor ith efficient asynchronous technology ith 3 PTCs suitable for operation on the frequency inverter or ith highly efficient permanent magnet technology (IE3/IE4), optimally coordinated ith the high performance impeller. Equipped on inlet side ith connection possibility for quadratic supports. Complete module optimally adjusted, built to a common base frame prepared for vibration decoupling. Fan can be used ith a horizontal axis! Impeller-Performance data to tolerance class 1 according to DIN Variants (optional) K ith standard internal rotor motor ith asynchronous technology K ith internal rotor motor ith permanent magnet technology (IE3/IE4) - ith integrated control unit - ith external control unit K Ex II 2G c IIB T4 design (inlet cones made of copper, safety guard on the inlet, pressure-resistant encapsulated motor) Fan Data Fan type RLM E6- Volume flo Fan static pressure Air density at inlet r 1 g/m³ Media temperature t C Fan poer P a W Efficiency f Hz speed N 1/min Max. fan speed N max 1/min Frequency f Hz Max. operating frequency f max Hz Sound poer level (A eighted) L WA db Weight m g Fittings / Accessories K Mating flange K Inlet connection (flexible) K Protection guard for inlet K Anti vibration mounts (spring diffusors) K Frequency inverter (et mit integriertem Filter und Bedienfeld) K Line choe K Universal control device K Differential pressure sensor 13