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3.2 System flow
3.2.1 Air flow description
1) After the dust is filtered out by the air filter, the air is compressed into the compressing bin
through the intake valve, and mixed with the lubricating oil, the compressed air mixed with the oil
enters the oil cylinder, and then through the oil fine separator, the pressure maintenance valve, the
rear cooler, Air-water separator, into the use of the system.
2) Functional description of each component in the main gas source path:
A)
: Air filter
Air filter is a dry paper filter, the filter paper fine porosity is about 10um, usually every 600-1000
hours (depending on the environment) should be removed from the surface of the dust removal
method is to use low-pressure air dust from the inside to outside. Some air filters are fitted with a
differential pressure transmitter or a pollution indicator as required. If the display panel shows a red
line in the air filter clogging or contamination indicator, it means that the air filter must be cleaned
or replaced.
B)
: Intake valve
a)
When starting, the intake valve is in the closed state, which makes the compressor start under
low load, lightens the load of the motor when starting, and is convenient for the normal operation
of the motor. At the same time, the inlet valve body has no air intake hole, which avoids the over-
vacuum in the compressor body. And can quickly establish the system required air pressure.
b)
Empty car, heavy car conversion
After the compressor starts, the inlet valve opens. The compressor is converted into a heavy vehicle
state, that is, a normal working state.
c)
Shutdown pressure relief and non-return function
After stopping, the inlet valve can quickly remove the air pressure of the oil and gas barrel, so that
the next starting motor will not overload; at the same time, it can prevent the compressed air flow
back in the oil and gas barrel, resulting in the rotor reversal and the oil-bearing air being ejected
from the air filter.
3) Temperature sensor
Summary of Contents for Quan Wei
Page 1: ...TaiWan QuanWei Screw type air compressor Using and Maintenance Instructions ...
Page 12: ...8 ...
Page 81: ...77 ...
Page 82: ...78 8 2 2 QWL 15A 20A 8 2 3 QWL 30A 40A ...
Page 83: ...79 8 2 4 QWL 50A 60A ...
Page 84: ...80 8 2 5 QWL 75A 100A ...
Page 85: ...81 8 2 6 QWL 150A 175A ...
Page 86: ...82 9 0 Circuit diagram ...
Page 87: ...83 9 1 MAM 860 880 Circuit diagram 9 2 MAM 890 Circuit diagram ...
Page 88: ...84 9 3 MAM 6080 Circuit diagram ...
Page 89: ...85 Screw Air Compressor operation record tale ...