Natural Gas Generator Set

The natural gas generator sets made in China provided by Kecheng are a clean and economical power generation solution worth considering for users. This unit uses natural gas as fuel. Its core consists of a high-efficiency internal combustion engine, a brushless excitation synchronous generator, an intelligent PLC control system, and a matching cooling and intake system. The overall structure is compact and the operation is stable. Compared with traditional diesel power generation, it has lower operating costs and more environmentally friendly emissions, which can meet the application scenarios that have requirements for air quality and long-term economy. The product can be flexibly adapted to the type of fuel on site. Whether it is a stable pipeline gas source or canned LNG/CNG, it can operate reliably. This unit is particularly suitable as a regular or backup power source for oil and gas fields, industrial parks, commercial complexes or distributed energy projects, and is a reliable choice for achieving efficient and clean power generation.

Application scenarios

• Industrial sector: Chemical plants, manufacturing plants (self-provided power supply/peak shaving power supply)
• Business sector: Shopping malls, hotels, data centers (emergency backup power)
• Municipal sector: Hospitals, sewage treatment plants (continuous power supply)
• Remote areas: Mining areas, rural areas (independent power supply)
• New energy supporting facilities: Distributed energy projects (" electricity + heat "stepwise utilization)

Product advantages

Technical parameters (100-1000kW models)

Technical features

1. High-efficiency combustion system

• Electronically controlled multi-point injection: Precisely control the air-fuel ratio (15:1-17:1) to prevent fuel waste
• High compression ratio internal combustion engine: Compression ratio 10:1-12:1, enhancing combustion efficiency (reducing heat loss by 5%)

2. Stable speed and voltage regulation

• Electronic speed controller: Speed stability accuracy ≤±0.5% (1500r/min), and recovery within 1 second when the load suddenly changes from 10% to 100%
• Brushless excitation generator: Voltage regulation rate ≤±1%, waveform distortion rate ≤5% (ensuring power supply for precision equipment)

3. Intelligent control system

• Monitoring parameters: Covering over 20 indicators such as rotational speed, oil pressure, water temperature, and voltage
• Fault Handling: Automatic shutdown alarm + Storage of 100 fault records (supporting historical query)
• Operation mode: "Automatic/Manual" dual mode (Automatic mode supports timed startup)

4. Noise reduction and protection design

• Double-layer sound insulation cover: Inner layer sound-absorbing cotton (noise reduction 20dB) + outer layer cold-rolled steel plate (anti-rust), operating noise ≤85dB (1 meter no-load)
• Electrical protection: IP23 grade (dust-proof + water-proof), suitable for outdoor installation

5. Fuel compatibility

It supports natural gas with a calorific value of 32-40MJ/m³ and can switch between pipeline gas, LNG and CNG without any modification

Usage Method

1. Pre-startup inspection (Mandatory item)

2. Startup operation

1. Mode selection: The control system switches between "Automatic" (timed/remote trigger) or "manual" (press the start button).
2. Start monitoring: Increase the rotational speed to 1500r/min, the oil pressure to ≥0.3MPa, and the water temperature to 80℃ (approximately 3-5 minutes)
3. Loading process: Close the output switch → First startup load ≤50% (run for 30 minutes) → Gradually increase to full load

3. Operation monitoring

• Real-time parameter viewing: Voltage 380V±5%, frequency 50Hz±0.5Hz, water temperature ≤95℃, oil pressure ≥0.2MPa
• Recording requirements: Record parameters once every hour. In case of abnormality, immediately unload and stop the machine

4. Shutdown operation

1. Unloading: Load drops to 0→ Disconnect the generator output switch
2. Cooling: Run the engine idle for 3 to 5 minutes (to prevent the internal combustion engine from overheating)
3. Shutdown: Press the "Stop" button → Close the natural gas valve → Disconnect the control power supply (Disconnect the battery wiring for long-term shutdown)

Pay attention to details

1. Safety Protection (Red Line Clause)

• Installation environment: Keep away from open flames and flammable and explosive materials. Ventilation volume ≥ 10 times the volume of the unit per hour. Install a gas leakage alarm (sensitivity ≤0.1% VOL).
• Operating Procedures: Work with valid certificates. Do not disassemble fuel or electrical components during operation. Before maintenance, cut off fuel, power supply and purge residual gas in the pipeline
• Grounding requirements: Grounding resistance ≤4Ω, and electrical circuits comply with the GB 50254 standard

2.Maintenance and servicing cycle

3. Environmental adaptation measures

• Temperature: Applicable to -20℃ to 45℃. For temperatures below -10℃, add engine oil/coolant heater. For temperatures above 40℃, enhance ventilation
• Humidity: When the relative humidity is ≥85%, a dehumidifier is installed in the electrical cabinet
• Dust: Install air pre-filters in mining areas/construction sites (clean weekly)

4. Common Fault Handling