Complete generator sets for gas engines

A complete set of generator sets for gas engines is a combination of equipment that uses a gas engine as the power source to drive a generator for power generation. The following is some introduction about it:

Working principle

A gas engine converts the chemical energy of gas into mechanical energy. Gas burns in the cylinder of an engine, generating high-temperature and high-pressure gas that drives the piston to move. Through the crankshaft connecting rod mechanism, the reciprocating motion of the piston is converted into the rotational motion of the crankshaft, outputting mechanical energy.

The generator is connected to the crankshaft of the gas engine and is driven to rotate by the engine. By using the principle of electromagnetic induction, mechanical energy is converted into electrical energy, thereby achieving power generation.

Structural composition

Gas engine: It is the core power component of a generator set, including cylinders, pistons, crankshafts, connecting rods, intake systems, exhaust systems, ignition systems, cooling systems and lubrication systems, etc. The structures of gas engines of different types and powers may vary, but the basic principles remain the same.

Generator: Usually, synchronous or asynchronous generators are adopted, mainly consisting of a stator and a rotor. There are windings on the stator. The rotor rotates in the stator and generates alternating current through electromagnetic induction.

Control system: It is used to monitor and control the operating status of the generator set, including the engine's rotational speed, temperature, oil pressure, as well as the generator's voltage, frequency, output power and other parameters. The control system is also equipped with automatic start-up, shutdown, protection and fault diagnosis functions to ensure the safe, stable and efficient operation of the generator set.

Gas supply system: It includes gas storage equipment (such as gas tanks or gas pipelines), pressure regulating devices, filters and gas metering devices, etc., to ensure the supply of stable, clean and appropriate gas to the engine.

Cooling system: Generally, water cooling or air cooling is adopted to cool the engine and generator, preventing them from overheating during operation, which could affect their performance and lifespan. The water cooling system includes radiators, water pumps, cooling fans and water pipes, etc. The air-cooling system mainly relies on fans and heat sinks for heat dissipation.

Exhaust system: It displaces the exhaust gas produced by the engine combustion to the outside or a designated location, and usually includes components such as exhaust pipes and mufflers. Mufflers are used to reduce exhaust noise and minimize the impact on the surrounding environment.

Advantages

Good environmental performance: Compared with traditional oil-fired generator sets, gas-fired generator sets burn more completely, generating less pollutants such as sulfur dioxide, nitrogen oxides and particulate matter, causing less pollution to the environment and meeting environmental protection requirements.

Low operating costs: The price of gas is relatively low, and the thermal efficiency of gas generator sets is high, which can effectively reduce operating costs. In addition, the maintenance cost of gas generator sets is relatively low because the gas combustion is relatively clean and causes less wear to the internal components of the engine.

Quick start-up: Gas engines have a relatively fast start-up speed, usually reaching the rated speed and outputting electricity within a few seconds. They can quickly respond to changes in power demand and are suitable for applications with high requirements for power supply timeliness.

Low noise: The noise generated by gas generator sets during operation is relatively low. Especially when equipped with advanced noise reduction devices, it can meet the usage requirements of places with high noise control demands, such as hospitals, schools, and commercial centers.

Application field

Distributed generation: It can be used in factories, hotels, office buildings, hospitals and other places to provide self-consumption electricity for them. At the same time, the excess electricity can also be fed into the power grid to achieve comprehensive utilization of energy and energy conservation and emission reduction.

Backup power supply: As a backup power supply, it provides emergency power support for important equipment and places such as communication base stations, data centers, and financial institutions when the power grid is out of power or the power supply is insufficient, ensuring their normal operation.

Power supply in remote areas: In some remote areas or places not covered by the power grid, gas generator sets can serve as independent power supply equipment to provide electricity for local residents and enterprises.

Renewable energy complementarity: Combined with renewable energy power generation systems such as solar and wind power, it serves as a supplementary power source when the power generation from renewable energy sources is insufficient or unstable, ensuring the stability and reliability of power supply.