Water Cooling Type Three Lobe Roots Blower Bkw8024 , Durable Aeration Blower
About BKWThe screw blower may look similar to a roots blower, however, it functions differently. The roots blower acts like a pump for the air as it goes into the motor, whereas the screw blower is more like an air compressor in how it forces the atmosre into the engine.
BKW seires Roots Blower inherits most components from BK series, it adopts water cooling in bearing cover, which can reduce the temperature of bearing when working and prolong the longevity, also it has a larger pressure capability.Specifications:
| Model | BKW8024 |
| Air capacity | 22.74m3/Min-66.05m3/Min |
| Discharge differential pressure | 60-100KPA |
| Rotary speed | 700rpm-1500rpm |
| Motor type | 30KW-200KW380/400/415/440V, 3SES, 50/60HZ |
| Motor brand | Standard: Siemens Beide or Wannan motorSiemens and ABB motor for your option |
| Installation type | Standard: horizontal type.Vertical type available for your option |
| N.W. of blower without motor | 1120 kg |
| Packing size Approx. | 2.35*1.65*2.60m (length*width*height) |
| Features | 1. Helical type timing gears for smooth operation2. Compact, flexibility in installation gives users more choices.3. Integral structure of impeller and shaft for stable and smooth running4. Adopt imported oil seals made from fluoric rubber with high wear resistance and high-temperature resistance.5. Low noise, low vibration and energy consumption. |
Parameters
| Type | Port Dia | Speed | Inlet airflow(m3/min)and shaft power(KW)at different conditions | Cooling Water | |||||||||
| 60kpa | 70kpa | 80kpa | 90kpa | 100kpa | |||||||||
| rpm | m3/min | KW | m3/min | KW | m3/min | KW | m3/min | KW | m3/min | KW | L/min | ||
| BKW8024 | 250(10'') | 700 | 23.85 | 39.10 | 22.74 | 47.51 | 20 | ||||||
| 850 | 31.76 | 47.48 | 30.65 | 55.06 | |||||||||
| 1000 | 39.67 | 55.86 | 38.56 | 64.78 | 37.67 | 73.70 | |||||||
| 1150 | 47.59 | 64.24 | 46.48 | 74.50 | 45.58 | 84.76 | |||||||
| 1250 | 52.86 | 69.82 | 51.75 | 80.98 | 50.86 | 92.13 | |||||||
| 1400 | 60.77 | 78.20 | 59.67 | 90.69 | 58.77 | 103.19 | |||||||
| 1500 | 66.05 | 83.78 | 64.94 | 97.17 | 64.05 | 110.56 | |||||||
Description of blower parts:
| Casing | Made of Casting iron HT200ENDLESS structure adopted for improving efficiency, one-time machined by CNC center with high precision |
| Rotor (Shaft and impeller) | Made of Casting iron QT500The impeller and shaft is cast as an integral part.Adopting NC planer for machining to achieve high precision |
| Gear end bearing | Made of GCr15NSK brand, double-row angular ball bearing, capable of supporting axial load |
| Drive end bearing | Made of GCr15NSK brand, cylindrical roller bearing |
| Gear | Made of 20CrMnTiBevel structure for more smoothly running |
| Oil seal | Made of fluoro rubberbears high temperature and has a longer life. |
Working PrincipleRoots blower is a cubage blower, and it discharges a fixed amount of air in proportion to its rotation speed. Every rotation, there is two lobes to finish three times absorbing and dischargeing air. Compared with two lobes blower, it is of less air pulses, smaller load change, higher strength, lower noise and vibration.Two paraller shafts have three lobes each, all the lobes keep small clearance with each other and housing inside. Every lobes rotatiomn, a certain air will be absorbed at inlet and transfeered form the housing inside surface to blower's diacharge port.Two shafts will be turned by the timing gears, no any touching between lobes, so it can be turned at high speed without any lubrication inside. It has the following chaaracteristics: simply configuration; running smoothly;good performance stabilization. It has been widely applied in various industries.
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