1200GF-T 1200kW natural gas generator cost
1200kw natural gas generator set overview This natural gas generator adopts -H16V190ZLT-1 engine, which is one sort of highly intelligent, low heat consumption, high reliability, low emission, long lifetime 16V gas engine designed and manufactured with the 16V gas engine as the model sample.. H16V190ZLT-1 electrical control and external mix engine owns speed 1000r/min, single unit power 1200kW. Instantaneous power can up to 1500kw.
With large power reverse, the engine can be used to assemble 1200kW natural gas generator set and equipped machinery. It owns 38% generation efficiency, low maintenance cost and yearly 8000 running hours.
Advantage
1) Key components are provided by internationally renowned parts manufacturers.
Control system · Woodward(same with Jenbach, Cat, Waukesha,MTU)
2) Lean combustion technology
3) NOx closed-loop control
2. System description
2.1.1 The genset system consists of a natural gas engine, a generator, a common chassis, a high elastic coupling, a control cabinet and so on. The system is equipped with a perfect system of biogas inlet, DC starting and electrical control. Generator is Synchronous AC brush-less excitation generator.
2.1.2 Installation: indoor installation, engine and generator rigidly mounted on the chassis, the chassis is installed on the base through the transition cushion, transition between base and foundation with anchor screws, between the engine and the generator are connected by high elastic coupling.
2.1.3 Cooling method: horizontal radiator is driven by motor.
2.1.4 Air intake mode: indoor air intake (recommended to install the fan to meet the requirements of air flow) genset should be equipped with air intake filter muffler.
2.1.5 Exhaust: outdoor exhaust, engine has exhaust pipe and muffler.
2.1.6 Starting mode: Air motor start, it is safe and reliable.
2.1.7 High elastic coupling: there is a high elastic coupling between engine and generator, the use of domestic well-known brand products.
2.1.8 Generator alternator: generator with domestic well-known brand synchronous alternator. The generator adopts the sliding bearing type, equipped with current transformer for generator differential protection and self-excited constant voltage (AVR).
2.1.9 Low voltage control panel Control panel is equipped with a variety of display instrument, adjusting button, unit protection indicator lamp, remote high voltage switch controller, emergency stop button for controlling the working condition, operation and testing generator. The automatic control module is arranged in control panel, manage the load distribution of units, and can dynamically display the operation condition of the generator, with the measurement and protection function of electrical parameters,operation parameter query, alarm information query, historical data query and other functions, to ensure the safe and reliable operation of generator.
3.The parameters of 2000GF-T
Type V type/ supercharge/ intercoling
BoreXstroke 190X215mm
Rated power 1200KW
Rated speed 1000r/min
Main effective pressure 1.66Mpa
Compression ratio 10:1
Efferency 40%
Gas consumption rate 9500KJ/KW
Control system LECM E6(Woodward)
Start method Gas motor
Size 6293mmX2040mmX2786mm
4.1 Requirements for fuel gas In order to ensure its reliable and stable operation of the generator set, the requirements for the natural gas quality is as follows
Natural gas should be dehydrated without any water, crude oil & clean oil
Natural gas pressure 100~400kPa
Natural gas temperature -20~40℃
Total sulfur content less than 200mg/m3.
Note: Gas volume is under standard condition with 100kPa atmosphere, 20℃ambient temperature,30% relative moisture.
4.2 Requirements for cooling water
Soften water is required by high temp and low temp engine circulation system. Cooling water should be lightly alkaline clean water without any corrosive compound, such as chloride,sulfate or acid etc. The main index requirements are as follows: Hardness 0.7~5.3me/L Chloride ion content <150mg/L PH value 7~8.5
4.3 Requirements for lubricant Engine is equipped with complete lubrication system, with oil consumption≤0.3g/kW·h. Lubricant model: Mobil Pegasus 705 or 15W40CD.
4.4 Requirements for environment Biogas generator set can run steadily, reliably, continuously under following condition: ambient temperature between -40℃~+40℃,relative moisture<90%,sea level elevation≤2000m. The generator can output rated power under standard environmental conditions:atmosphere pressure 100kPa, ambient temperature25℃, air relative moisture 30%.
5. Lubrication system
The generator set is equipped with automatic recharging oil device. The recharging oil device can realize manual/automatic switch.
The oil pump is installed on the oil inlet of the oil pan of each set. Electric control is used for the pump. There is an oil level gauge on the oil pan of each set. It outputs a switching value signal respectively when oil level of the oil pan is low or high. When control system monitors low oil level, oil supply pump will automatically run and fill oil to the oil pan; when control system monitors high oil level, it can stop filling oil automatically. If the oil pump is not closed, it gives alarm prompt and starts oil returning pump. Meanwhile, when oil level of oil storage tank is lower than set value, it gives sound and light alarm signal to warn the user to fill oil to oil storage tank.
Lubricating tank
Fresh oil tank 10 m3
Used oil tank 10 m3
The oil tank can realize manual filling oil.
In addition, electric filling oil joint is reserved
The oil tank is requested to send oil level alarm signal
It can display oil level in normal condition
Make sure to consider oil discharge and cleaning of oil tank during design.
Oil charging pipe: It provides all pipelines from lubricating can to oil pan of the unit. Oil pump: Every unit is equipped with two oil pumps. One set is gasoline pump and the other set is oil returning pump. Control box: PLC controller is assembled in the control box. Thus, it can realize logical relation between refueling and oil expulsion accurately and realize manual/automatic refueling; it has the function of oil level alarm (including oil pan and lubricating can).
oling system
Every generator set is equipped with a set of horizontal radiators which are used for cooling of high temperature system (cylinder liner and primary inter-cooling of the inter-cooler) and low temperature system(secondary inter-cooling of the inter-cooler and lubricating oil cooler) of the engine.
The cooling water pipeline between the horizontal radiator and the GE is produced and installed on site, and each GE is equipped with a high-temperature water temperature control valve at the factory to meet the high-temperature water cooling temperature requirements.
The horizontal radiator is equipped with a terminal box. The complete wiring of the cable from the terminal box to the cooling fan, temperature sensor and expansion water tank liquid level sensor is complete.
7.Electrical system LV control panel
The control panel is equipped with imported (COMAP, Heinz or Denver) automatic paralleling /grid module and paralleling/grid selective button, which is easy for users to adjust the power supply flexibly. If the paralleling function is selected, five sets may realize the automatic paralleling and automatic load sharing; if parallel function is selected, the automatic paralleling of single unit and the setting of system power can be realized. The automatic module is equipped with the LED display, with Chinese operation interface. The running status of whole system may be displayed realtime, with the functions of measurement and protection for various electrical parameters of unit and varies of running parameters, alarming information and historical data to ensure the safety and reliable running of generator set. The module has telecommunication interface.
The revolving speed and voltage of genset can be adjusted automatically by electronic speed control system and excitation system, and can also adjust the RPM potentiometers and voltage knob. The control panel is equipped with a float charging device, which can utilize the self-generation of the generator set to charge the battery that supplies power to the control panel.
The control panel may monitor the following parameters: Three-phase AC voltmeter l ON instruction l Three-phase output ammeter l OFF instruction l Frequency meter l High temperature alarming l Output active power meter l Low pressure alarming l Power factor meter l High oil temperature alarming l
8. Mute container (Optional)
8.1 The container is divided into two parts: GE room and electrical control room. The skeleton base is welded by high-strength channel steel and I-beam, and the top cover and wall panels are made by folding 2mm tile-shaped steel plates.
8.2 Corresponding monitoring equipment such as combustible gas leakage alarm, flame alarm and smoke alarm are equipped in the GE room to meet the requirements of protection equipment. When gas leakage, fire alarm and other situations occur, passive switch alarm signals can be output separately. The container is equipped with 5 sets of explosion-proof LED lights with emergency function (230VAC / 40W), 4 sets of air intake fan (400VAC / 4kW), and a wall-mounted air conditioner is set in the electrical control room. The container is equipped with 7 sets of 230VAC / 2.2kW electric heaters to ensure that the temperature in the machine room is not lower than 10℃ in winter. Electric louvers are installed in the inlet and exhaust vents of the mcontainer. It is controlled by the monitoring system and can be automatically shut down when the GE is not working, and automatically open when the GE is working.
8.3 The airtightness of the container meets the noise requirements of the national standard. 1 meter away from the GE container is less than or equal to 85 dB. The container needs to meet the normal operation and ventilation requirements of the unit even if the door is closed for a long time.
8.4 Install two guide rails and 0.5T hoist inside the GE room for maintenance and removal of cylinder head. The lifting point of the cylinder head is firm, and the upper end of the supercharger is equipped with a lifting ring.
8.5 The top of the container should be separable from the body for easy dis-assembly
8.6 The cable threading hole is set at the bottom of the container, directly down from the generator outlet to the bottom of the container, and enter the cable trench outlet; the grounding point is set at no less than two places, and it is set at the diagonal position of the container. The ground wire must be installed; the high voltage is separated from the control wire to avoid signal interference, and all equipment in the container must be reliably connected to the container.
8.7 Configure maintenance ladders, roof guardrails and one set of foundation bolts.
9.Local PLC and background monitor & control system (Optional)
9.1 PLC centralized control panel
Local PLC centralized control panel is set in the container to control radiator, ventilation and power distribution of the container. Moreover, PCL centralized control panel can collect, display and store the operating parameters and status of the engine thermal parameters, generator electrical parameters, unit auxiliary equipment, etc.
The air switches, relays, thermal relay protectors, buttons, indicator lights, and terminals in the centralized control cabinet are selected from domestic and foreign first-line brand products.
9.2 Background monitoring unit: Main configuration and functions of background monitoring
Main configuration and functions of background monitoring: it is composed of monitoring computer, monitor, mouse, keyboard, printer, communication equipment and uninterruptible power supply UPS. It provides a full-station computer monitoring system for the operation, operation and protection of the entire power plant. Engines, generators, cooling systems, machine room ventilation fans, gas fire alarm devices and other systems realize real-time digital monitoring and control operations, historical data storage, query, printing, and abnormal alarms.
The operation platform of the background monitoring system is placed in the user monitoring duty room, which is convenient for monitoring the operation of the unit. The monitoring interface can realize bilingual switching between Russian and English. The liquid crystal display, industrial control computer, and the industrial control computer and liquid crystal display are all installed in domestic or international well-known brands, such as Siemens, Heli, Advantech, Advantech, etc. The industrial computer is equipped with CPU no less than i5, 1TG hard disk, 4G memory, and is equipped with keyboard, mouse, printer, etc.
The background monitoring system collects the operating data and status of the units and auxiliary equipment in the centralized control cabinet of each unit in each machine room through network communication. The Ethernet communication interface is reserved for remote transmission of power plant local data to the GPP DCS system.
The background monitoring system supports the ability of simultaneous monitoring of generator sets and their auxiliary equipment, and can record and store the collected data, and store and record historical data of not less than 2 years, and the historical data supports the functions of querying, printing, and exporting by time.
The background monitoring system is configured with an AC UPS system. When the normal AC power supply is interrupted, the UPS will supply power to the background monitoring power supply that requires continuous power supply. The UPS shall continue to supply the rated capacity for not less than 60 minutes, which requires reliable quality.
Monitor each GE to collect thermal and electrical parameters, and distinguish them by numbers, curves, histograms, and different colors to form a friendly human-machine interface.
9.3 Genset abnormal alarm
When the important operating parameters of the generator set exceed the safe operating limits, the system will automatically send out sound and light alarm prompts, and automatically mute the sound after the fault is removed. At the same time, it supports manual mute function. The content of the alarm uses color change, pop-up, sound, flashing lights, etc. to remind the staff on duty.
10.Heat recovery Unit (Optional)
In order to make full use of total thermal energy from combustible gas, customer requires CHP system on the basis of power generation use. This system consists of heat exchanger, liquid supply pump or hot liquid circulation pump, valves and insulation liquid pipe. The above components form a circulation system, with liquid supply pump or hot liquid circulation pump as power source. It adopts heat exchanger and boiler with adding antifreezer to produce hot water for production and daily use.
10.1Heat recovery boilers waste heat of exhaust In order to make full use of the exhaust heat of the unit and improve the comprehensive utilization rate of gas, a waste heat recovery boiler is added to the exhaust system to recover the exhaust heat and generate hot water (70 to 90°C) or saturated steam (1MPa). The waste heat can be used for production or life Use heat.
10.2 Heat recovery boilers waste heat of hot water Generator with a semi-open circulation cooling system, the internal circulating high-temperature water (cylinder jacket water) transfers heat to the external circulating high-temperature water through the heat exchanger. The external circulating high-temperature water pipe can be directly introduced into heating equipment such as heating, where the heat is exchange to increase the temperature in the fermenter.
This makes full use of the heat of the engine cooling water and improves the overall utilization rate.
11. SCR denitration reaction principle
11.1 Nitrogen oxide hazard
Nitrogen oxides can irritate the lungs and make it more difficult for people to fight off respiratory diseases such as colds. People with respiratory problems, such as asthma, are more susceptible to nitrogen dioxide. In children, nitrogen oxides can cause impaired lung development. It has been suggested that long-term exposure to NOx may lead to structural changes in the lungs, but the amount of NOx that causes this and the timing of the inhalation have not been determined.
11.2 SCR denitration technology features
With high efficiency and relatively low price, this method has been widely used in domestic and foreign projects and has become the mainstream technology of power station flue gas denitration. Most SCR systems at home and abroad adopt high temperature, and the reaction temperature range is 315℃ ~ 400℃.
