Bkw8024 Three Lobe Roots Blower 1500rpm 30kw Water Cooling

Water Cooling Type Three Lobe Roots Blower Bkw8024 , Durable Aeration Blower



About BKW

The 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 atmosphere 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:

Mode , l BKW8024
Air capacity 22.74m3/Min-66.05m3/Min
Discharge differential pressure 60-100KPA
Rotary speed 700rpm-1500rpm
Motor type 30KW-200KW
380/400/415/440V, 3PHASES, 50/60HZ
Motor brand Standard: Siemens Beide or Wannan motor
Siemens 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 operation
2. Compact, flexibility in installation gives users more choices.
3. Integral structure of impeller and shaft for stable and smooth running
4. 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 HT200
ENDLESS structure adopted for improving efficiency, one-time machined by CNC
center with high precision

Rotor (Shaft and impeller) Made of Casting iron QT500
The impeller and shaft is cast as an integral part.
Adopting NC planer for machining to achieve high precision
Gear end bearing Made of GCr15
NSK brand, double-row angular contact ball bearing, capable of supporting axial
load
Drive end bearing Made of GCr15
NSK brand, cylindrical roller bearing
Gear Made of 20CrMnTi
Bevel structure for more smoothly running
Oil seal Made of fluoro rubber
bears high temperature and has a longer life.

Working Principle

Roots 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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