Quincy Compressor QGV 40, Инструкция

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Instruction book
2012 2039 28 96
Installation guidelines
1. Compressor unit: The unit should be installed on a level floor capable of taking the weight of the
compressor.
2. Compressed air outlet pipe.
3. Delivery pipe :
The maximum total pipe length (including interconnecting piping between compressor and receiver) can
be calculated as follows:
L =
ƩP x d^5 x P
450 x Qc^1.85
Where,
In Metric units
L = length of the pipe (m)
Ʃp = pressure drop ( recommended maximum = 0.1 bar)
D = inner diameter of the pipe (mm)
P = absolute pressure at compressor outlet (bar(a))
Qc = Free air delivery of the compressor (l/s)
In Imperial units,
L = length of the pipe (in)
Ʃp = pressure drop ( recommended maximum = 1.5 psi )
D = inner diameter of the pipe (in)
P = absolute pressure at compressor outlet (psi(a))
Qc = Free air delivery of the compressor (cfm)
4. Ventilation :
The inlet grid(s) and ventilation fan should be installed in such a way that any recirculation of cooling air to
the inlet grating of the compressor/ dryer is avoided.
The air velocity to the grid(s) has to be limited to 5m/s (16.4 Ft/s). The maximum air temperature at
compressor intake opening is 46°C (115°F), (minimum 0°C / 32°F)
Ventilation alternative 1 and 3 : The required ventilation to limit compressor room temperature can be
calculated from :
Qv = 1.06 N / ƩT
Where,
In Metric units,
Qv = Required cooling air flow (m
3
/s)
N = Nominal motor power of compressor (kW)
ƩT = Temperature increase in compressor room. (°C)
In Imperial units,
Qv = Required cooling air flow (m
3
/s or cfm)
N = Nominal motor power of compressor (kW or hp)
ƩT = Temperature increase in compressor room. (°C or °F)
Ventilation alternative 2 and 4 : The fan capacity should match the compressor - fan capacity at a
pressure head equal to the pressure drop caused by cooling air ducts.
Max. allowable pressure drop in ducting before or after the compressor = 30 Pa (0.00435 psi).