How to Use Volvo Generator Set
by Starlight Generator dieselgeneratortechVolvo diesel generator low fuel
consumption, low emissions, low noise, structure, mainly from the diesel
engine, generator and control system from the combination of three parts.
Diesel
engine
1. A diesel engine is a kind of
power machine. Power machinery, also known as the prime mover, converts the
natural energy (hydraulic, wind, solar, and chemical energy of various fuels)
into mechanical motion that can be used directly to drive other machines.
2. The diesel engine directly
injects the chemical fuel (diesel) into the cylinder and relies on the thermal
explosive force produced by the combustion of the fuel to promote the external
work of the piston.
3. The conversion of heat energy
and mechanical energy in diesel oil is accomplished through four processes:
piston working in cylinder, continuous air intake, compression, working and
exhaust.
Generator/alternator
After starting the diesel engine,
it depends on the residual magnetic voltage of the motor and the excitation
current provided by the rectifier to the magnetic field of the AC machine. The
armature voltage of the AC motor increases gradually, and the AC voltage is fed
into the host magnetic field after rotating rectification, which makes the main
generator establish the voltage. When the speed is close to the rated value,
the voltage regulator AVR makes the generator rise rapidly and stabilize at the
rated value.
Control
system
The control system monitors the
operation of the whole genset, including the diesel engine and the motor. The
sensors on the diesel engine are used to control the high water temperature
alarm shutdown, the overspeed alarm shutdown and the low oil pressure alarm
shutdown of the diesel engine, and to ensure the diesel engine to run in the
normal working state.
Necessary
inspection of Volvo generator before starting
Please develop the habit of
visual inspection of diesel generator engines and engine rooms before starting.
This will help you quickly find out if an exception has occurred or is about to
occur. After starting the engine, check the meter and warning screen to see if
the normal value is displayed.
Note: Do not start the ejector or
similar products as starting AIDS. Explosion hazard!
Before the
start
1. Check if the oil level is
between the MIN and MAX markers.
2. For fuel, please refer to the
oil level, check and fill up.
3. Turn on the tank switch.
4. Check for leaks of coolant,
fuel or lubricating oil.
5. Check the air filter pressure
drop indicator.
6. Check coolant level. Check if
the periphery of the radiator is blocked. Please refer to the coolant level,
check and fill.
Note: Do not turn on coolant
padding cap except in case of emergency, or cause serious personal injury.
Steam or hot fluids may spew out.
7. Turn on main switch
Note: Do not turn on coolant
padding cap except in case of emergency, or cause serious personal injury. Steam
or hot fluids may spew out.
8. Set engine speed control to
idle speed. Separate the detachable clutch / drive.
What should
you pay attention to when using Volvo generating set?
1. The properties of diesel have
great influence on the power, economic performance and reliability of diesel
engine.
2. Oil with CF or VOLVO engine
oil.
3. Coolant shall provide adequate
heat transfer capacity. In addition, the main anti-rust, anti-freezing. The
coolant shall be mixed with water and ethylene glycol or corrosives. The PH
value of water is between 6 and 8. Clean water or distilled water should be
used in accordance with the requirements of ASTM4985. The specific mixing ratio
is 50%VOLVO antifreeze liquid and 50% pure water. It can be used throughout the
year without freezing when the temperature is about -40.
4. Operating machine pressure
shall be within the range specified by 2-5Bar. Check each part of the pipe
system and parts connected to oil leakage, leakage phenomenon. Exhaust smoke
color is normal, there is no abnormal noise. No-load low speed running time
should not be too long. When the diesel engine temperature and oil pressure of
the Volvo generator set are normal, it should be able to run steadily by
increasing the speed to the rated value.
5. The gradual loading load and
speed increase should be increased gradually and uniformly, and sudden increase
and sudden reduction of load should not be allowed under any special
circumstances.
6. The normal generator shutdown
should be subjected to a comprehensive inspection. Observe whether the machine
is malfunctioning so that it can be handled after the machine is shut down.
Shutdown should not be done by turning on the relief mechanism or closing the
fuel tank switch. Unloading the load gradually before shutdown, running 3-5
minutes without load, cooling evenly in many departments, this is especially
important in turbocharger. Stop over stop device, such as stop solenoid valve,
solenoid, etc.
The plane must be shut down in
any of the following circumstances.
1. Oil pressure gauge indicates
sudden drop or no pressure
2. A sharp rise in cooling water
or oil temperature
3. Speed automatically increases,
there is a flying car phenomenon.
4. Abnormal tapping or loosening
of transmission mechanism.
5. The diesel engine has
explosive latent accident on the spot. At present, the control system of the
unit is usually equipped with self-protection system, such as oil pressure,
water temperature, overspeed protection, and emergency stop device, which makes
the diesel engine stop by turning off the throttle. If necessary, stop the air
filter by blocking it.
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Created on Nov 8th 2018 00:58. Viewed 123 times.