Diesel generators from ITCPOWER
We are a manufacturing factory, the main product is diesel generators.
Our website can be found on the web by searching for ITC POWER.
A generator is a mechanical device that converts other forms of energy into electrical energy.
A diesel generator is a combination of a diesel engine and a generator (usually an alternator) to generate electricity. Diesel compression ignition engines are generally designed to run on fuel oil, but there are types that are suitable for use with other liquid fuels or natural gas.
The basic structure of a diesel generator is composed of a diesel engine and a generator. The diesel engine is used as power to drive the generator to generate electricity.
The basic structure of a diesel engine: it consists of cylinders, pistons, cylinder heads, intake valves, exhaust valves, piston pins, connecting rods, crankshafts, bearings and flywheels. The diesel engine of the diesel generator is generally a single-cylinder or multi-cylinder four-stroke diesel engine. Below I will only talk about the basic working principle of a single-cylinder four-stroke diesel engine: the starting of the diesel engine is to rotate the crankshaft of the diesel engine by manpower or other power to make the piston sealed at the top of the cylinder. Reciprocate up and down in the middle. The piston completes four strokes in motion: intake stroke, compression stroke, combustion and work (expansion) stroke, and exhaust stroke. When the piston moves from top to bottom, the intake valve opens, and the fresh air filtered by the air filter enters the cylinder to complete the intake stroke. The piston moves from bottom to top, the intake and exhaust valves are closed, the air is compressed, the temperature and pressure increase, and the compression process is completed. When the piston is about to reach the top, the injector sprays the filtered fuel into the combustion chamber in a mist form and mixes with the high-temperature and high-pressure air, and immediately ignites and burns by itself. power stroke. After the power stroke is completed, the piston moves from bottom to top, the exhaust valve opens to exhaust, and the exhaust stroke is completed. Each stroke crankshaft makes half a revolution. After several working cycles, the diesel engine gradually accelerates into work under the inertia of the flywheel.
The rotation of the crankshaft of the diesel engine drives the generator to rotate and generate electricity. The generator includes a DC generator and an AC generator.
The DC generator is mainly composed of a generator shell, a magnetic pole core, a magnetic field coil, an armature and a carbon brush. Working principle of power generation: When the diesel engine drives the generator armature to rotate, due to the residual magnetism of the magnetic pole core of the generator, the armature coil cuts the magnetic field lines in the magnetic field. According to the principle of electromagnetic induction, the magnetic induction generates current and outputs the current through the carbon brush. .
The alternator is mainly composed of a plurality of permanent magnets (called rotors) with alternating north and south poles made of magnetic materials and armature coils (called stators) made of silicon cast iron and wound with multiple series coils. Working principle of power generation: the rotor is driven by the diesel engine to cut the magnetic field lines axially, the alternately arranged magnetic poles in the stator form an alternating magnetic field in the coil iron core, the rotor rotates once, the direction and size of the magnetic flux change many times, due to the transformation of the magnetic field, Induced currents of varying magnitude and direction are generated in the coils and delivered by the stator coils.
In order to protect the electrical equipment and maintain its normal operation, the current sent by the generator also needs to be adjusted and controlled by a regulator.
In short, the diesel generator drives the generator to run.
In the cylinder, the clean air filtered by the air filter is fully mixed with the high-pressure atomized diesel fuel injected by the fuel injector. Under the upward extrusion of the piston, the volume is reduced and the temperature rises rapidly, reaching the ignition point of the diesel. The diesel fuel is ignited, the mixed gas burns violently, the volume expands rapidly, and the piston is pushed down, which is called ‘work’. Each cylinder performs work in a certain order, and the thrust acting on the piston becomes the force that pushes the crankshaft to rotate through the connecting rod, thereby driving the crankshaft to rotate. By installing the brushless synchronous alternator and the crankshaft of the diesel generator coaxially, the rotor of the generator can be driven by the rotation of the diesel generator. Using the principle of ‘electromagnetic induction’, the generator will output the induced electromotive force, and the closed load loop will current can be generated.
Only the most basic working principle of the generator set is described here. A series of diesel generators and generator controls, protection devices and circuits are also required to obtain a usable, stable power output.
One or more diesel generators operating without being connected to the grid is referred to as an islanding mode of operation. Working generators in parallel can achieve better efficiency at part load. An islanded power plant for mains power to an isolated community will typically have at least three diesel generators, any two of which are rated to carry the required load.
The generators can be electrically connected together through a synchronization process. Synchronization involves matching voltage, frequency and phase before connecting the generator to the system. Failure to synchronize prior to connection may result in high short-circuit currents or wear on the generator or its switchgear. The synchronization process can be done automatically by the automatic synchronization module, or manually by a guided operator. The automatic synchronizer will read the voltage, frequency and phase parameters from the generator and bus voltage while regulating the speed through the engine governor or ECM (Engine Control Module).
The load can be shared between generators running in parallel through load sharing. Load sharing can be achieved by using a droop speed control controlled by the generator frequency while it constantly adjusts the engine fuel control to transfer load to or from the remaining power source. The diesel generator will take on more load when the fuel supply to its combustion system increases, and release the load if the fuel supply decreases.
The packaged combination of diesel engine, generator and various auxiliary devices such as base, top cover, sound attenuation, control system, circuit breaker, jacketed water heater and starting system is called a “generator set”.
Standard units are widely used in general installations in computer rooms. The unit is mainly composed of diesel engine, generator, control system, frame, shock absorber, cooling system, oil supply system, and output protection switch.
Protective units are used in outdoor places where there are no special requirements for noise. It is mainly composed of standard unit, protective cover, smoke exhaust system, etc. Since the protective cover is not provided with a noise reduction device, as long as it meets the conditions of ventilation and rain and snow protection, the protective cover is small in size and low in cost. Open doors and windows for ventilation when the unit is running. The protective power station can be used alone or in parallel with multiple units. The parallel use of multiple units is especially suitable for occasions with large load changes, high requirements for continuous operation reliability and low-cost economical use, such as supporting oilfield drilling rigs.
Soundproof units are widely used in outdoor or indoor places with special requirements for environmental protection where protection and noise reduction are required. They are mainly composed of standard units, soundproof enclosures, air intake and exhaust noise reduction devices and exhaust noise reduction devices. It is a combination of soundproof enclosures with sound insulation and sound absorption layers, air inlet and exhaust channels for noise reduction, and industrial and residential mufflers for exhaust to reduce high-frequency and low-frequency noise respectively. The noise of standard soundproof units is generally 78-85dB(A), and the noise of super soundproof units is generally 70-78dB(A). The super sound-proof unit is based on the standard sound-proof unit to take stricter control measures for noise emission, such as the use of labyrinth air inlet and exhaust channel design.
Super sound-proof units generally have larger dimensions, and the manufacturing cost is much higher than that of standard sound-proof units. Soundproof units and super soundproof units are usually operated, maintained and serviced outside the soundproof enclosure.
open-air power station
Low-noise shelter power stations and container power stations are generally used in outdoor use places with special requirements for environmental protection, and can be directly placed in the open air for use, eliminating the need to build a machine room, and have the characteristics of strong mobility and short use cycle. The noise of low-noise shelter power station and container power station is generally 75-85dB (A), which can be operated, maintained and overhauled in the shelter and cabin.
Our manufacturers provide detailed installation guides to ensure correct functionality, reliability and low maintenance costs. When purchasing a generator, you must ensure that the product comes with an installation guide and product description.
The guide covers the following:
- Sizing and Sizing – Typical Loads of Electrical Equipment, Expected Loads of the Application
- Electrical Factors – Peak Load vs. Stable, Allowed Applications
- Cooling – engine cooling during power generation
- Ventilation – Allowed airflow during cooling (design)
- Fuel storage – how long the generator runs at a specific usage rate
- Model-specific noise – dB level
- Exhaust volume – ppm (parts per million) of certain elements, taking into account the environment and the environment around the generator
- Start the system – key start, pull start, push button start and more
Generator set size
home, shop, office
For homes, small shops and offices, equipment sizes range from 8 to 30 kW (also 8 to 30 kVA single phase)
Large industrial generators from 8 kW (11 kVA) to 2,000 kW (2,500 kVA three-phase) complexes. The 2,000 kW unit can be installed in a 12-meter ISO container, with fuel tanks, controllers, power distribution equipment and all other equipment required to operate as a stand-alone power station or as a backup for grid power.
daily power supply
Although the power of diesel generator sets is low, they are widely used in mines, railways, field construction sites, road traffic maintenance, factories, enterprises, hospitals and other departments due to their small size, flexibility, light weight, complete supporting facilities, and easy operation and maintenance. .
Emergency Power Supply
Diesel generator sets are used where they are not connected to the grid, or as an emergency power source in the event of grid failure, as well as for more complex applications such as peak tripping, grid support and grid output.
The generator set shoulders the important task of providing complete sets of power generation equipment for the national economy and people’s living electricity, so it will occupy a very important position for a long time. With the development of the progressive society of the times, the original generator set is bulky, high fuel consumption, loud noise, and serious exhaust pollution. Obviously not suitable for the needs of society. Therefore, the development direction of the generator set in the future should be energy saving, environmental protection, light weight, miniaturization and beautiful appearance. Only in this way can the potential advantages of the generator set be brought into play.
ITCPOWER is a manufacturing factory dedicated to innovation and environmental protection.
On our website, you can find your favorite diesel generator sets.