Natural gas power generation units are based on natural gas LPG、WTG、 A ignition gas engine that uses high calorific value gases such as associated gas from oil fields as fuel. On the basis of non supercharged models, a supercharging system and an intercooler system have been added. The cooling system adopts a high and low temperature cycle separation method, with high temperature cycle cooling the cylinder, body, cylinder head and other high-temperature components, and low temperature cycle cooling the supercharged gas, air and oil cooler.

I. Introduction to Natural Gas

Natural gas—primarily composed of methane at 90%—produces nitrogen oxides, hydrocarbons, and carbon monoxide at levels far below national emission standards during combustion, with no dust pollution. Its thermal conversion efficiency reaches 65%, comparable to liquefied petroleum gas (LPG) and higher than coal. On a per-calorie basis, natural gas is now cheaper than coal and significantly less expensive than petroleum. Natural gas serves as a versatile fuel for residential use, power generation, chemical feedstock, and industrial applications, effectively substituting coal and petroleum. Examples include replacing coal-based gasification for residential heating, substituting coal and petroleum as nitrogen fertilizer feedstock, replacing naphtha as ethylene feedstock, and substituting petroleum as automotive engine fuel.

LPG (Liquefied Petroleum Gas) primarily consists of propane.

CNG stands for Compressed Natural Gas, which is natural gas compressed to 20MPa to form high-pressure natural gas.

WTG refers to Liquefied Natural Gas, which is natural gas cooled to ultra-low temperatures of -162°C to form liquid natural gas.

Gas requirements for the unit (within 1m of the gas inlet valve):

CH₄ volume content ≥70%;

Gas pressure 80–200 kPa, pressure variation rate ≤1 kPa/min;

H₂S ≤20 mg/Nm³;

Moisture content ≤40 g/Nm³;

Particle size of impurities ≤5μm, impurity content ≤30mg/Nm³.

High sulfur and ammonia content in combustible gases not only severely corrodes spark plug electrodes but also increases acid value in engine oil, corroding internal components. It also promotes sediment formation, increasing engine wear and corrosion.

Applications

• Oilfield associated gas power generation

• Industrial parks

• Petroleum processing and chemical plants

• Natural gas power generation as backup power sources

• Stand-alone units for oil well power supply

Technical Features of the Generator Set:

(1) Internationally advanced closed-loop electronic control technology;

(2) Imported Tecjet gas control valve—automatic air-fuel ratio adjustment;

(3) Lean burn control technology—significantly enhances fuel economy and emission performance;

(4) Pre-turbocharging mixing technology—suitable for low-pressure gas;

(5) Digital intelligent ignition module;

(6) EGS gas controller from American WOODWARD

(7) Adaptable to gas sources with varying concentrations;

(8) Capable of replacing imported products; overall technology is domestically leading and internationally advanced

Primary Configuration of Generator Sets (Closed-Loop Electronically Controlled External Mixing Gas Generator Sets):

(1) 190 Series Gas Engine

(2) Intelligent Digital Ignition Module

(3) Siemens Series Alternator (Brushless Excitation/Automatic Voltage Regulation/Multiple Output Voltages: 0.4kV, 6.3kV, 10.5kV)

(4) Multifunctional Control Cabinet

(5) Automatic Synchronization Detection, Automatic Load Distribution

(6) Electric Starting System

(7) Comprehensive Safety Protection Devices

(8) Multiple cooling circulation modes (Open/Semi-open/Fully closed/Split closed)

IV. Generator Set Technical Specifications

1. Standard Operating Environmental Conditions

Total atmospheric pressure: 100 kPa; Ambient air temperature: 25°C; Relative humidity: 30%. Under these conditions, the generator set achieves rated load output when fuel quality complies with technical specifications.

2. Optional Generator Matching

Generators supplied with units are from renowned domestic and international brands: Siemens, Stamford, Marathon, Deko, Xingnuo CSIC, Watt, etc.

V. After-Sales Service

Warranty Period: 12 months after successful commissioning and acceptance or 2,000 cumulative operating hours, whichever comes first. Free repair or replacement is provided for product quality issues, with lifetime paid service available! (Wear parts, consumables, damage caused by human error, or neglect of maintenance are excluded from warranty coverage). Commitment: For generators manufactured by our company, the warranty period is extended to 18 months.

After the warranty period, users enjoy lifetime maintenance. Replacement parts are charged at cost price only, with no labor fees added. In cases of severe product wear or special circumstances, users may bring the unit to our company for major repairs or exchange it for a new unit.

Should users encounter operational difficulties or require technical support, please contact our after-sales service team. Upon receiving your call or fax, we will dispatch specialists immediately to inspect and repair the unit, restoring normal operation as swiftly as possible.

Wate (shandong) Energy Co., Ltd. – a professional manufacturer of gas generator sets, committed to integrity and quality excellence.