Dynaset HKL 1300, Руководство пользователя

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Dynaset Oy | Menotie 3, 33470 Ylöjärvi | puh. 03 3488 200 | info@dynaset.com | www.dynaset.com
HYDRAULIC ROTARY VANE COMPRESSORS
OPERATING INSTRUCTIONS
3.2. AUTOMATIC RPM-CONTROL
HKL 400, HKL 801 and HKL 1300 is equipped with automatic RPM-control.
HYDRAULIC FLOW (l/min)
0
DISCHARGE (l/min)
Q
AP
, nom
Q
AP
, min
Q
HY
,
min
Q
HY
, nom
Q
HY
, nom
+ (20-30%)
l/min
t
Picture 9: Automatic RPM-control
Automatic RPM-control keeps rotation speed constant. Incoming hydraulic oil flow
(Qhy) can vary from nominal demanded flow (Qhy, nom) up to value exceeding
Qhy, nom by 20-30% l/min depending on compressors size.
3.3. LUBRICATION SYSTEM OF COMPRESSOR
Compressor oil performs following functions:
1. LUBRICATION : Pressure differential makes the oil spread along grooves to the
surfaces to be lubricated. Separate oil pump is not needed.
2. HERMETIZATION : Injected oil seals rotor blades against stator’s wall and lubricates
them.
3. COOLING: Compressor oil removes the compression heat from the stator.
4. CAPACITY CONTROL: Compressor oil is used to control the intake valve with servo
valve to adapt the amount of air taken in by compressor to the demand.
3.4. PRESSURE AND COMPRESSION RATIO
The rated absolute intake pressure is 1 bar (1000 hPa).
NOTE!
The reference barometric pressure at 0 m above sea level is 1,0135 bar,
when at 1000 m above sea level it drops to 0,9 bar.
When the discharge (operational) pressure of HKL-compressor is 8 bar, compression
ratio is equal to:
operational pr barometric pressure
barometric pressure
8 + 1,0135
1,0135
= 8,89 =
The compression ratio for unit of (x) bar is calculated in the same way.