Operation and Maintenance Manual and User Service Guide for Industrial Power WP10 Series Diesel Engine
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Exhaust pipe outside connected is made of steel pipe, should be flexibly
connected to the supercharger of diesel engine. The inside diameter of
extended exhaust pipe should be more than 120mm. Moreover, the extended
exhausted pipe should not be bent as possible as you can, and should be
reliably fixed without any vibration. Do not place the weight of the extended
exhaust pipe on the expansion pipe of diesel engine. In addition, it is not
allowed to use the expansion joint to eliminate the centring tolerance
between pipes. After the exhaust system is installed, the back pressure of
diesel engine should not be more than 6kPa, which otherwise may impair the
diesel engine performance!
Exhaust system must function to prevent sea water, rain or foreign material
from getting into the diesel engine. With diesel engine running, the exhaust
pipe is very hot; therefore, the installation of exhaust pipe should be kept
away from the inflammables. In order to prevent any fire and scald etc, heat
insulation measures should be taken around the surface of exhaust pipe.
If some diesel engines installed together and share the same extended exhaust
pipe, some problems will emerge: condensed water developed by the exhaust
will enter the inoperative diesel engine, which can easily damage to the parts
of diesel engine. Therefore, each diesel engine should possess its own
independent exhaust system.
The muffler if needed should be rationally selected and installed. Meanwhile,
reduce the exhaust system back pressure increased by the installation of
muffler as possible as you can.
2.4.7 Installation of cooling system
The cooling line in diesel engine has already installed before delivery,
therefore, it is unnecessary to install it again.
Whereas, it is needed to install the cooling pipeline (sea water or river)
outside of diesel engine. Sea water pump driven by a B-type V-belt can be
installed on one side of diesel engine according to the working environment.
Cooling pipeline should be of resistance to corrosion and be shortened as
possible as you can. And minimize the number of elbows. In addition, the
inside diameter of this pipe should not be less than the counterpart of parts to
be connected so as to reduce the coolant resistance.
