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Two-rotors three-lopes rotary blowers
Roots single blocks
How they work?
1. Phase of «intake» / Фаза «всасывание»
2. Phase of «conveying to discharge side»/
3. Phase of «pressure equalisation» /
4. Phase of «discharge»
As the rotors turn, air in the inlet is trapped between the rotor lobes and the casing. When the advancing lobe reaches the lip of an eccentric bore hole in the casing, this «pre-inlet channel» allows gradual equalisation of pressure between the trapped inlet air and the air drawn in from the discharge side. Pressure equalisation in two-lobe blocks occurs abruptly as the advancing lobe crosses the lip of the discharge port. This is the main reason why three-lobe blocks generate significantly less pulsation than two-lobe blocks. The air is then finally pushed out against the pressure in the pipe work.
Where are they used?
Where are they used?
Stationary or mobile, and in both vacuum and pressure operation – our rotary blowers ensure excellent performance for a wide range of applications. For example:
- in water management (e.g. for aeration of sedimentation tanks)
- forced air generation (drying, cooling, separation...)
- combustion air or gas supply
- for pneumatic conveying of powdered and granular bulk materials
- chemical industry (also for aggressive gases)
- special (nuclear power plants – stainless steel), ATEX
Advantages
Advantages:
- Long service life: heavy-duty cylinder roller bearings completely absorb the continuously changing radial gas-forces that are exerted on the rotors. Service life of up to 100,000 hours is possible with the included bearings.
- High flow rate = High-efficiency: thanks to high precision manufacturing we achieve minimal flank clearance, which results in reduced capacity losses through gap losses.
- Low noice level, low vibration level: appropriately selected shape of the working space and the stiffness of rotor mounting results in low noise and low vibration levels.
Units
Single blocks is possible to deliver:
- on the frame with an electric motor
- with suction filter, discharge silencer with safety valve and check valve
- with control unit
- in canopy
- including packages for overseas transport and fumigated wooden box.