5
2) The pressure drop of the piping shall not exceed 5% of the set pressure of the air compressor.
Therefore, it is better to use a larger diameter than the designed value when piping.
3) The branch line must be taken out from the top of the main line to prevent the condensed water
in the line from flowing into the working machine or back into the compressor.
4) The tools to be lubricated should be equipped with a triple combination (air filter, voltage
regulator, oil feeder, etc.) in order to improve the service life of the tool.
5) Do not shrink the road arbitrarily. If it is necessary to narrow or enlarge the pipe, use the tapered
pipe, otherwise there will be turbulence at the joint, which will lead to a large pressure loss, and
have a great impact on the life of the pipe.
6) If there are purifying and buffering facilities such as air storage tank and dryer after air
compressor, the ideal pipe should be air comp gas storage tank + dryer. The gas storage
tank can filter out part of the condensate water, and the gas storage tank also has the function of
reducing the exhaust temperature of the gas. Lower temperature and less moisture content can
reduce the load of the dryer by re-entering the dryer.
7) If the air consumption of the system is very large and the time is very short, it is best to add an
air storage tank as a buffer, which can reduce the number of empty loads of the air compressor,
which is of great help to the air compressor.
8) For compressed air under the system pressure below 1.5MPa, the velocity of flow in the
conveying pipe shall be below 15m/sec to avoid excessive pressure drop.
9) Minimize the use of bends and valves in the pipeline to reduce pressure loss.
10) The ideal pipe arrangement is for the main pipeline to surround the whole plant, so that double
compressed air can be obtained at any location. If the amount of gas used in a branch line increases
suddenly, the pressure drop can be reduced. Suitable valves are arranged on the annular main line
to facilitate overhaul and cut off.
2.2.2 Basis
1) The foundation should be built on hard soil, and the foundation plane should be smooth ground
before installation to avoid vibration of the air compressor.
2) If the air compressor is installed upstairs, it must do a good anti-vibration treatment to prevent
the vibration from spreading to the downstairs, or to produce resonance. There are safety considers
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 ...