Technical Description

Natural Gas Generation Set

SC1000G

Engine will be designed according customers gas analysis:

~% CH4�?/span> ~% C2H6�?/span> ~% C3H8�?/span> ~% heavy hydrocarbon�?/span> ~% H2O�?/span>

Barometric pressure�?/span>100m above sea level�?/span> Air temperature�?/span>25°C�?/span>

Data refer to following gas analysis:

~95% CH4�?/span> ~1 C2H6�?/span>~1% C3H8�?/span> ~1% heavy hydrocarbon�?/span> ~2% CO2�?/span>

Fuel�?/span>pipeline natural gas (dry gas)�?/span> Natural Gas pressure: 1 bar�?/span>

Operation mode�?/span>Single unit independent operation�?/span>

(Electrical output�?/span>1000 kW el.,  400V / 50Hz)

1  Base Datasheet

1.1 Technical Data (at module)

   Data (at module)

   parameter list

   Connections

1.2 Technical data of engine

   Exhaust gas data

   Combustion air data

1.3 Technical data of generator

2  Technical parameters

2.1 Natural gas consumption

2.2 Gas purification requirement (at module)

2.3 Environment condition

2.4 Technical norms

2.5 Engine gas piping process

2.6 Coolant system (at module)

2.7 Control system and electrical equipment

2.8 Room specifications

3  Scope of supply - module

3.1 Spark ignited gas engine

3.1.1 Engine design

3.1.2 Standard tools

3.2 Generator - 400V

3.3 Engine generator control panel - DSE7320

3.4 Starting system

3.5 Flexible connections

3.6 Electrical equipment

4  Delivery, installation and commissioning

4.1 Carriage

4.2 Unloading

4.3 Assembly and installation

4.4 Storage

5  Limits of delivery

1  Base Datasheet

1.1 Technical Data (at module)

1.2 Technical data of engine

1.3 Technical data of generator

2 Technical parameters

2.1 Natural gas consumption

Genset selection is suitable for pipeline natural gas (dry gas).

According to standard environment condition (Barometric pressure 1000 mbar or 500m above sea level, air temperature 25�?/span>, relative humidity 30%), All data in the technical specification is based on engine full load at specified temperature and the methane number and subject to technical development and modifications.

2.2 Gas purification requirement (at module)

Natural gas temperature: 5 - 45°C; Natural gas pressure: 100kpa - 400kpa(Pressure governor before ) or 8kpa - 15kpa(without pressure governor).

2.3 Environment condition

 Under the environment: air temperature is in -20�?/span>~+40�?/span>; relative humidity below 90% (20�?/span>); Altitude below 1000m, genset is able to run steadily and reliably.  

2.4 Technical norms

 Genset in accordance with the relevant IEC standards GB2820-1997, JB/T9583.1-1999 and IEC439.The production process carry out the related quality system ISO9001.

2.5 Engine gas piping process

 Gas engine natural gas intake system configure manual ball valve, filter, pressure governor (optional), solenoid valve, natural gas control valve, these are monuted on the genset.

2.6 Coolant system (at module)

 Radiator is mounted on the genset. Coolant water is demineralized water; hardness is between 0.7�?/span>5.3mmol/L; the content of chloridion is less than 150mg/L; PH value: 7�?/span>8.5.Regularly check the water tank liquid level height and timely supplement.

2.7 Control system and electrical equipment The Max. environment temperature is less than 40°C.On this condition, relative humidity less than 70%. Altitude below 1000.

2.8 Room specifications

�?span style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-size-adjust: none; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-variant-position: normal; font-variant-emoji: normal; font-stretch: normal; font-size: 9px; line-height: normal; font-family: "Times New Roman";">  room structure should achieve a level fire rating.

�?/span>In accordance with the explosion-proof requirements, it should deploy a forced ventilation system indoor. Other appliances in the genset room will be adopted explosion proof equipment, put an end to an ignition source.

�?/span>Gas leakage protection: two unit combustible gas alarm probe, one unit combustible gas alarm.

�?/span>Separated from the operating room and the room.

�?/span>fire-fighting equipment.

�?/span>lightning conductor.

�?/span>Genset installation: The ground should be compacted to pour concrete foundation; The genset is arranged on the horizontal ground; and it is fixed installation.

�?/span>Room should be set up corresponding cable trench, drainage ditch; and the rational layout of natural gas pipeline.

3 Scope of supply - module

Design:  

The module is built as a compact package. Engine and generator are connected through a coupling and are mounted to the base frame�?/span>vibrations are eliminated by mounting the module on isolating pads.

3.1 Spark ignited gas engine

Four-stroke, air/gas mixture turbocharged, after cooled, with high performance ignition system and electronically controlled air/gas mixture system. The engine is equipped with the most advanced

LEAN-BURN COMBUSTION SYSTEM

3.1.1 Engine design

Engine block

Single-piece crankcase and cylinder block made of special casting; crank case covers for engine inspection, welded steel oil pan.

Crankshaft and main bearings

Drop-forged, precision ground, surface hardened, statically and dynamically balanced. main bearings(upper bearing shell: grooved bearing/lower bearing shell; sputter bearing) arranged between crank pins, drilled oil passages for forced-feed lubrication of connecting rods.

Flywheel

With ring gear for starter motor and additionally screwed on.

Pistons

Single-piece made of steel, with piston ring carrier and oil passages for cooling; piston rings made of high quality material, combustion chamber specially designed for lean burn operation.

Cylinder head

Specially designed and developed for Omnitek-lean burn engines with optimized fuel consumption and emissions; water cooled, made of special casting, exhaust and inlet valves made of high quality material.

Combustion air / fuel gas system

Automatic control valve for automatic adjustment according to fuel gas characteristic.

water-cooled or air to air intercooler, throttle valve and distribution manifolds to cylinders.

Ignition system

advanced, fully electronic high performance ignition system, external ignition control.

Lubricating system

Gear-type lube oil pump to supply all moving parts with filtered lube oil, pressure control valve, pressure relief valve and full-flow filter cartridges�?/span>Cooling of the lube oil is arranged by a heat exchanger.

Engine cooling system

Jacket water pump complete with distribution pipework and manifolds.

Gas train

Pre-assembled,  delivered loose,  for installation into gas pipework to the module.

Consisting of:

�?/span>Gas filter cartridge unit

Fine cartridge filter in welded configuration, built on supports.

Dust protection grade: > 2μm 92%, 99% >5μm

Attention: the filter installed in the gas train is only a safety filter. The particle content in the fuel gas can lead to a quick pressure rise over the safety filter. correspondingly sized filters should be installed on site (not Omnitek scope of supply) if required.

�?/span>Main gas train:

Manual ball valve

 Solenoid valves

Pressure gauge 

Flame arrestor ( Option )

Gas pressure regulator

The gas train must be fitted with a heating system in order to avoid

 condensate formation -> customer scope of supply.

Maximum distance from main gas train outlet to gas entry on engine, including flexible connections, is less than 2 m. -> customer scope of supply.

BUYER must provide: real-time gas analysis.

Exhaust system

Turbocharger and exhaust manifold

Electric actuator

For electronic speed and output control

Starter motor

Engine mounted electric starter motor

3.1.2 Standard tools

The tools required for carrying out the most important maintenance work are included in the scope of supply and delivered in a toolbox.

3.2 Generator - 400V

MagnaPLUS generators are a brushless, self excited, externally voltage regulated, synchronous AC generator. The generator is made up of six major components: main stator (armature), main rotor (field), exciter stator (field), exciter rotor (armature), rectifier assembly, and voltage regulator. stators are stationary, rotors rotate, a field is an electrical input, and an armature is an electrical output.

Electrical Performance:

 Class H insulation.

 Standard 12-wire re-connectable winding, 2/3 pitch, type no. 6.  High efficiency and motor starting capacity.

 Total harmonic content < 50; TIF�?/span>2%.

Electrical data and features:

3.3  Engine generator control panel - DSE7320

Dimensions:

Control supply voltage from starter and control panel batteries: 24V DC

        Monitoring an extensive number of engine parameters, the modules will display warnings, shutdown and engine status information on the back-lit LCD screen, illuminated LEDs, remote PC and via SMS text alerts (with external modem).

        The DSE7320 will also monitor the mains (utility) supply. The module include USB, RS232 and RS485 ports as well as dedicated DSE Net ® terminals for system expansion.

        The modules can be easily configured using the DSE Configuration Suite PC software. Selected front panel editing is also available.

KEY FEATURES