The gas generator process is a systematic process that efficiently converts chemical energy into electrical energy, encompassing multiple stages including fuel pretreatment, combustion, energy conversion, cooling, and emission control. These stages are closely linked and precisely coordinated to ensure the unit outputs stable, clean, and efficient power.
The process begins with fuel supply and pretreatment. Natural gas, liquefied petroleum gas, or other low-carbon fuels are transported to the unit inlet via dedicated pipelines or storage facilities. The pressure is first stabilized within the rated range by a pressure regulating valve, and then passed through multi-stage filters to remove impurities such as dust, droplets, and sulfides, preventing contaminants from entering the combustion system and causing component damage or poor combustion. Some processes include dehydration and dehydrocarbonization devices to further purify the fuel, ensuring uniform composition and facilitating precise control of the air-fuel ratio.
Then comes the combustion and power generation stage. The purified fuel and air treated by air filters are uniformly mixed in a mixer at a set ratio. The electronic control unit adjusts the air-fuel ratio and ignition timing according to load requirements. After the air-fuel mixture enters the combustion chamber, it is ignited. The instantaneous release of heat causes the gases in the cylinder to expand rapidly, pushing the piston in a reciprocating motion (reciprocating type) or driving the turbine to rotate at high speed (gas turbine type), thus converting the thermal energy of the fuel into mechanical energy. This process requires extremely high precision in temperature, pressure, and mixing uniformity; any deviation can lead to a decrease in power or excessive emissions.
The mechanical energy is then transferred to the generator for further energy conversion. In a reciprocating structure, the crankshaft converts the linear motion of the piston into rotational motion, connecting to the generator rotor via a coupling; in a turbine structure, the turbine directly drives the coaxial generator rotor. The rotor rotates at high speed in the stator magnetic field, outputting three-phase alternating current through electromagnetic induction. The control system monitors the frequency, voltage, and phase in real time, dynamically adjusting the excitation and speed control mechanisms to ensure that the power quality meets grid-connected or independent operation standards.
The exhaust gas after power generation needs to enter the exhaust and after-treatment process. The high-temperature exhaust gas first flows through a heat exchanger, transferring some of the heat to the cooling water or intake system, achieving waste heat recovery and improving overall energy efficiency. The gas then enters a muffler and catalytic reactor, where a catalyst promotes the reduction and conversion of carbon monoxide, unburned hydrocarbons, and nitrogen oxides, significantly reducing harmful emissions. Finally, the exhaust gas is discharged into the atmosphere through an exhaust pipe, with its temperature and pollutant concentration strictly controlled by process limits.
To ensure continuous and stable operation, a cooling and lubrication subsystem is also included in the process flow. Coolant circulation removes heat from the cylinder block and turbine, maintaining all components within a suitable temperature range; the lubrication system lubricates and cleans the moving parts, reducing friction loss and removing some heat. Under the coordination of a monitoring module, both systems automatically adjust flow and pressure according to load and operating conditions.
Overall, the gas generator's process flow integrates multiple technologies, including fuel purification, efficient combustion, precise energy conversion, waste heat utilization, and clean emissions, all interconnected. This ensures maximum energy utilization and environmentally friendly operation, reflecting the high level of integration and intelligent manufacturing in modern power plants.