Rotor:
It
adopts 3-yuan semi-open impeller and is made by integral milling of CNC
five-axis machining center to ensure the accuracy and strength of the
impeller.
Inlet guide vane regulator: the airfoil inlet guide vane is used to
adjust the inlet air flow pre-rotation Angle of the blower to achieve
the performance adjustment of the blower, and the flow adjustment range
is 40-110%.
Gear:
The
gear is single-sided helical tooth, the precision of the gear reaches
the national standard level 5 (5-GB/T 10096), the surface of the gear is
specially hardened, and the service life is more than 100,000 hours.
Gear box:
Tilting
tile bearing is adopted for high speed shaft of gear box, with high
stability; Gear machining up to ISO level 4, design service life is more
than 30 years.
· Oil system design: Advanced finite element analysis
software was used to analyze the overall stiffness of the oil station
to ensure the reliability of support. The oil system is equipped with an
oil mist fan. The oil system runs under negative pressure to
effectively solve the problem of oil smoke and lubricating oil spatter
in the gear box.
The unit adopts direct oil pump for self-forced
lubrication, which can be fully supplied by direct oil pump before the
blower stops. There is no need to set the high oil tank for on-site
power failure emergency oil supply and its supporting oil pipelines. All
the oil pipelines are assembled in the plant, and the on-site
installation workload is greatly reduced. The auxiliary oil pump only
runs temporarily when the unit is started and stops when the unit is in
normal operation.
Unit monitoring parameters:
1. Vibration and axial displacement of high and low speed rotor
2. Bearing bush temperature
3. Inlet and outlet pressure, flow rate and temperature of blower.
4. Oil system pressure, temperature, liquid level height, filter pressure difference
Unit control system functions:
1.
Automatic control of oil system, including auxiliary oil pump start and
stop, oil pressure control alarm stop, oil temperature control.
2. Automatic control of inlet guide vane opening.
3. Vibration and temperature alarm stop of the unit.
4. Anti-surge system of unit.
5. Wheel opening and coordinated control of multiple units
6. Remote online monitoring of unit status and fault diagnosis.