Perkins Diesel Generator Set Can Idle for a Long Time
by Starlight Generator dieselgeneratortech1.What is diesel
generator set idling?
Idle state, that means
diesel generator set work without any load. That is to say, under this working
condition, the generating set does not need to bear load, as long as it keeps
the low speed required for smooth operation.
2. Why can not let
Perkins diesel generator set idle for a long time?
A. If Perkins diesel
generator set idles for a long time, it will also reduce the quality of fuel
injection atomization, accelerate early wear of cylinder wall. Because the
quality of atomization is directly related to the injection pressure, injector
aperture and camshaft speed of Perkins diesel generator set. Because the
injector aperture remains unchanged, the quality of fuel atomization depends on
the injection pressure and camshaft speed. The slower the camshaft speed is,
the longer the injection pressure increases, and the worse the fuel atomization
quality. The camshaft speed changes with the change of diesel engine speed.
Idling for a long time can lead to low combustion temperature and incomplete
combustion of diesel engine, which may cause carbon deposit to block injector
nozzle, piston ring or valve jam;
B. If coolant liquid
temperature of Perkins diesel generator set is too low, those unburned diesel
oil will wash away the oil film on the cylinder wall and dilute the oil. The
motion parts of Perkins diesel generator set will not get the proper
lubrication effect, and the parts will wear out prematurely;
C. Operating a diesel generator
set at idling causes twice damage on internal parts compared to operating at
regular speeds. Such damage can increase maintenance costs and shorten the life
of the diesel generator;
D. Severe damage to the
engine oil. Excessive idling shortens the life of the engine oil at a min. And
may make the oil detrimental to the engine;
E. Unnecessary idling
causes pollution. Idling a generator set can emit significant amounts of
pollution, including carbon dioxide, which contributes to global climate
change; nitrogen oxides and volatile organic compounds, both of which
contribute to the formation of ozone smog;poisonous carbon monoxide; and
particulate matter.
Therefore, in the
process of running Perkins diesel generator set, users must avoid excessive
idle operation, and pay attention to the temperature of coolant liquid to
ensure that the coolant liquid is in the normal temperature range, so as to
avoid unnecessary damage to Perkins diesel generator set caused by these
inappropriate operations.
3. When we use diesel
generator sets, there will inevitably be some faults, for example, the idle
speed of diesel generators is unstable. How to deal with it?
A. First of all, we
should check whether the oil supply of low-pressure oil circuit is smooth,
whether the injected diesel oil meets the requirements, and whether the
maintenance of generating units is timely, otherwise we should clean up,
maintain and replace it;
B. If the generator set
is not used for a long time or the fuel tank is not replenished in time, a
small amount of air seeps into the oil pipeline, we should carry out the
exhaust treatment;
C. If the generator set
has been used for a long time, the fuel injection pump has been debugged many
times, while without checking the wear situation of the governor, when
debugging, should pay attention to check whether there is excessive wear at the
connection of the governor element and the throttle rod. Otherwise, it should
be replaced or welded. When welding and repairing rotating parts, should pay
attention to the symmetry of quality to ensure balance;
D. Idle speed is
unstable and accompanied by vibration, which is caused by uneven fuel supply of
fuel injection pump. It can be checked by cylinder-by-cylinder oil cut-off
method. If the broken cylinder does not cause the change of rotational speed,
it indicates that the cylinder is insufficient in fuel supply or that the
atomization of the injector is not good. The injector should be checked first,
then check the injection pump;
E. If the idle
stabilization device is not adjusted properly, it should be repaired on the
test bed.
It is not better to lat
a Perkins diesel generator set idle for a long time, so hope users when using
generator set pay attention this problem.
Above is Starlight
power’s some ideas on Perkins generator idling, hope it can be helpful for all
of you. Starlight Perkins diesel
generator covers open type, silent type, container type and trailer mobile
type, power range is from 20kw to 1980kw, if you want to know more about diesel
generators, you can send us email: sales@dieselgeneratortech.com, we will provide you with more
professional services.
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Created on Jul 6th 2019 03:18. Viewed 302 times.