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Home > Equipments > HFO Diesel generator & Marine HFO Engine - The Technical Program of 50MW HFO MAN 9L32/40 Power Generating Plant


 

The Technical Program of 50MW HFO MAN 9L32/40 Power Generating Plant

 
 
 
The Technical Program of 50MW HFO MAN 9L32/40  Power Generating Plant
 
 
Contents
 

Our producer, founded in 1995, registered capital 185,000,000, headquarter in Yiwu, Zhejiang Province, is an external enterprise specialized in the research and development, manufacturer, sales and service of diesel generators. Because of the products, technique and service of OEM cooperation with German MTU, UK Perkins, South Korea DOOSAN,USA Marathon, France Leroysomer and other world-known enterprises, the emergency electrical stations provided electricity guarantee for Xiangguang Copper(4800KW), Jiangxi Copper Group(3200KW),China Financial Center Database(11000KW),Jiangxi LDK Solar (5600KW),etc.
The factory of Hangzhou, established in April, 2005, is situated in Hangzhou Economic and Technological Development Zone, with a floor area of 50,402 square meters and the total investment of US$59.6 million. On October 11th, 2006, OUR PRODUCER signed a license agreement of technology acquisition and collaborative production with MAN Diesel Group to become a licensed member, specialized in producing MAN Diesel high-power, medium speed, four-stroke engines, auxiliaries and propulsion system with the power ranging from 1000kw to 10,000kw. Supervised by the experts designated by MAN Engine Company, the products all passed MAN product quality inspection, Ship Classification Society OF CCS and BV. The company plans to produce 50 engines in 2010. The company dedicated to research and exploration of heavy fuel oil power station, supported by the technology and products of MAN and the over ten-year experience of emergency power station. In May,2009, signing an agreement of the heavy fuel oil power station South American market development, the two sides plan to design, construct and operate Brazil 174Mwand 200MW heavy fuel oil power station, which got technology and supporting services from MAN.
Equipment, parts and auxiliary equipment, provided by the sealer, correspond with the latest version of the standard, but they are not limited to the following standard:
2.1 State Standards
GB2820�?997      《Alternated current drive reciprocating internal combustion engine generating sets�?/DIV>
JB/T10303-2001    《Technical conditions of power frequency diesel generating sets�?
GB755�?000       《The basic technical requirements of electric rotating motor�?/DIV>
GB1105�?987      《Performance testing method of internal combustion engine housing>>
GB1859�?000      《Internal combustion engine noise determination method>>
GB3907�?983      《The basic measuring method of industrial radio interference>>
JB/T8194-2001     《Vocabulary terms of internal combustion engine electrical station>>
GB12699-1990      《Rated power, rated voltage and speed of power frequency diesel generating sets>>
CB/T3253-1994     《Technical conditions of marine diesel engine>>
CB/T3254-1994     《Experiment of marine diesel engine housing>>
GB8840-1988       《Exhaust limits of marine diesel engine>>
2.2 Technical standards of MAN
Refer to ISO 30461/1-2002
The standard environmental condition
Environmental temperature: 25ºC
Barometric pressure: 1bar
RH (relative humidity):  30%
Fuel oil condition:
Fuel lower heating value: 42700 kJ/kg
Total capacity of power station: 50MW
Voltage: 11kV 
Frequency: 50Hz      
PF (Power Factor): 0.8pf 
 
 
 
 
5.1 Overall description of heavy fuel oil power station
There are 12 MAN 9L32/40 diesel generating sets in 50MW heavy fuel oil power station. Each set rated power: 4340KW(Ambient temperature 25ºC),The power station rated total power output is 52.08MW; Voltage: 11kV, Frequency: 50Hz, PF: 0.8pf, Speed: 750rpm.
1. Power station
2. Exhaust system and exhaust boiler
3. Sweetener
4. Radiated coolant system
5. Fuel depot
6. Pump station
7.Maintenance workshop and warehouse
 The design picture of standard electrical station:
50MW power station contains power station, exhaust system and exhaust boiler, radiated coolant system,fuel depot, pump station, maintenance workshop & warehouse and working building. Generating sets, auxiliary machines, supply unit, lube filtration separator and control system are all installed in power station. If you don't consider terrain factors influence, the ideal power station can take up an area of 200m×220m. While the actual station design could be adjusted by weather, environment and terrain, but principle of proximity should be considered to prevent too much a long pipe arrangement. At the same time, the heat of heavy fuel oil tank is realized through the vapor of exhaust boiler, so the short line is in favor of heat insulation.
The heavy fuel oil could be the main fuel and light diesel oil the auxiliary fuel. With the main generating sets parallel operation, each unit can input or exit operation. The control system could adjust power balance, power of different sets, which has protective measures of inverse power, over current, etc.
 (Suggestions) The power station need to collocate a 250kVA auxiliary engine, which can supply the black start power, light fuel oil, 24V storage battery start, power -0.4kV, frequency-50Hz, PF-0.8pf, and rotated speed-1500rpm. When the power station comes into good running, the auxiliary engine turns to the emergency standby sets.
Transformer, collocate by power station, provide the main auxiliary equipment with working power supply, the electricity of station lighting and domestic consumption.
5.2 Characteristics of HFO power station
 (1) Highly-structured corollary equipment, flexible installation site and short construction period
The corollary equipment of heavy fuel oil generating sets is rather simple for little corollary equipment, small volume and light in weight. Compared with water turbine-generator set needed to dam, vapor generating set needed to boiler, fuel storage, and water treatment system, the diesel generating set has advantages of small occupation, high construction speed and low invest cost.
Modularity unit system used for heavy fuel oil generating sets, flexible arrangement according to the terrain, which is fit for construction of mountain area and mine area, subjected to small regional terrain restrictions.
(2) High thermal efficiency, low fuel oil consumption and low operation cost
The heavy fuel oil machine extended from diesel is the highest thermal motors of thermal efficiency, of  which the effective thermal efficiency is 40%�?0%, the high-pressure steam turbine is about 20%�?0%, and combustion gas turbine is about 20%�?0%. So fuel consumption is rather low about 178g/kWh. The power station form applied with heat and power cogeneration, has the higher whole energy conversion efficiency, and the thermal power gets more fully used.
 (3) The rapid starting and can quickly reach full power
The heavy fuel oil generating sets may use heavy fuel oil and light fuel, which could reach full loaded operation in 3 min of emergent condition (light fuel oil used on emergency ), and in 10 min of normal operation condition (starting uses light fuel oil, and heat engine uses heavy fuel oil ),while the thermal & electricity steam power equipment generally needs 3�?h from starting to full load. What’s more, the shutdown process of diesel is rather short, started and shutdown frequently.
 (4) Simple maintenance, small conventional maintenance work, little operation staff, overhaul period of 36000h (related to the fuel oil quality), and low operation expense.
 (5) Convenient unit combination, capacity easy to extended
Each capacity of MAN heavy fuel oil power station generating sets, ranging from 3000kw to 21000kw, which has the advantage of fitting for more power supply load with more selected capacity. When adopting heavy fuel oil power station generating sets as power, the installed capacity may dispose neatly according to actual need, which can increase power set capacity in the after enlargement & production. The expansion of access is simple and smart, so the expense of primary construction investment is much lower.
 (1)Economy of power station operation
a、Fuel cost
MAN 9L32/40 generating sets adopted by this program, the fuel consumption rate is:
Rate of loading
100%
85%
Fuel consumption rate of Engine
181g/kWh
179g/kWh
Fuel consumption 1kWh of Generator set
186.6 g
184.5 g
Fuel consumption 1kWh of Power station
194.4g
192.2g
b、Oil cost
    When lube oil consumption rate of Engine is 0.8 g/kWh, generator efficiency is 97%, provided by MAN database, the lube consumption of Generator set is 0.825 g/kWh, the lube consumption of Power station is 0.86 g/kWh,
c�?Maintenance cost
      The heavy fuel oil power station has a long overhaul period that can reach 36000 hours in general condition. Counted by 20 hours per day it can operate over 5 years continuously.
  With a mature model9L32/40 and low malfunction rate, it is widely used between the ship and power station domain. Also with plenty of spare parts storage and supply, the maintenance cost is rather lower.
 
No.
Designation
Contents
Unit
Qty.
Installed location of machines
Remarks
1
MAN
9L32/40 generating sets
Engine, shaft coupling, generator, public chassis, control panel
set
12
Power plant
 
2
Auxiliary module
Comprised by lubricating pump, lube oil cooler,  lubricant temperature control valve, lube self-cleaned filter, high temperature pump, high water temperature control valve, low temperature pump, low water temperature control valve, control switch cabinet, etc.
set
12
With standby
3
Lube separating module
Including lube delivery pump, lube preheating device, lubricant separator, sump pump, sump tank, control switch cabinet, etc.
set
12
With standby
4
Fuel supply module
Conversion valve of heavy fuel oil and light oil, fuelmeter, viscosity control, fuel mixed tank, fuel pressure pump, HFO end heater, fuel cooler, fuel double filter, control switch cabinet
set
12
With standby
5
Leakage oil & decontamination module
Sludge pump discharge, fuel leaked oil tank, lube sludge tank
set
2
 
6
Engine preheating module
Preheating high temperature water, lubricating oil
set
12
 
7
Inlet filtration muffler module
Shutter, inlet filter, inlet muffler
set
12
 
8
Nozzle cooling module
Radiator, centrifugal water pump, cooler, expansion tank, temperature control valve, filling equipment, control switch cabinet
set
12
 
9
Water maintenance module
Radiator, centrifugal water pump
set
1
Pump plant
 
10
Heavy oil separation module
HFO delivery pump, HFO preheating device, Separator, sump pump
set
2
 
11
Air container
Starting air container, working air container, pressure reducing valve
set
2
With standby
12
Air compressor
H.P. air compressor, L.P. air compressor
set
2
 
13
Radiator
High temperature water and low temperature water radiating
set
12
Radiator
 
14
Exhaust Muffler
Exhaust Muffler
set
12
Outlet and exhaust boiler
 
15
Exhaust boiler
Boiler body, air manifold, water pump, control switch cabinet
set
6
16
Switch cabinet
Switch cabinet of parallel generating sets
set
12
Power Distribution room
 
17
Feeder cabinet
Switch cabinet of total outgoing line
set
2
 
18
Neutral grounding resistor cabinet
Neutral point grounding of generator
set
12
 
19
PT cabinet
PT bus couple
set
2
 
20
DC panel
 
set
1
 
21
Power distribution cabinet
Power consumers and distributors of each module system
set
2
 
22
The whole design of power station
Project design satisfied for local environment
set
1
 
 
23
Pipes
oil pipe, water pipe, air pipe, smoke pipe, tracing pipe, etc.
set
1
 
 
 
24
Unit station service transformer, generator transformer, electricity transmission
 
set
1
 
 
25
Cable, wire, bridge
 
set
1
 
 
26
One set 250kVA auxiliary machine
 
set
1
 
 
 
Configure of power station system contains as follows:
Diesel generating sets
Lube system
Lube supply system
Coolant system
Nozzle cooling circulation system
Cooled water preheating module
 Cooled water supply system
Fuel system
Inlet system
Exhaust system
Leaked oil & decontamination module
Compressed air system
Electrical equipment of generating set
Architectural Equipment(the buyer in charge)
The generating sets mainly include diesel, duplex bearing generator, high elasticity shaft coupling and public housing. Diesel and duplex bearing generator are connected by high elasticity shaft coupling, which are also supported and fixed by public housing.
Function of diesel generating sets:
Rated power------------------------------------4340kW  
Rated speed------------------------------------------750rpm   
Rated voltage------------------------------------------11kV   
Rated frequency------------------------------------------50Hz     
PF(Power factor)------------------------------------------0.8     
Steady-state voltage adjusting rate------------------------------------------�?-0.5%    
Transient voltage adjusting rate------------------------------------------20%~-15%
Sudden load changing voltage steady time------------------------------------------�?S    
Voltage fluctuation rate------------------------------------------�?.5%
Steady-state frequency adjusting rate------------------------------------------�?-0.5%
Transient frequency adjusting rate------------------------------------------+10%~-7%
Sudden load changing frequency steady time------------------------------------------�?S
Frequency fluctuation rate------------------------------------------�?.5%   
Waveform distortion------------------------------------------�?% 
The generating sets as the main electrical power, no limitations for operation time, it can operate and supply electricity continuously except the normal maintenance. In the operation process, the period can permit the overload operation of one hour per 12 hours, and if it overloads 10%, the function of the sets doesn’t fall.
7.1.1 Diesel
Brand and model of diesel------------------------------------------MAN 9L32/40  
Pattern------------------------------------------V, four stroke, direct injection, turbocharger, air cooled, compressed air starting
Cylinder bore------------------------------------------320mm 
Stroke------------------------------------------400mm  
Bore spacing------------------------------------------530mm  
Compressed ratio------------------------------------------14.5  
MCR (Most Continuous Power)\speed------------------------------------------4500kW/750 r/min 
Direction of rotation------------------------------------------Crankshaft clock-wise rotation (as viewed from output end)
Lowest steady speed------------------------------------------250r/min 
Fuel consumption rate (When MCR happens)---------------------------------------181g/kW.h,tolerance+5% 
MEP (Mean effective pressure) ------------------------------------------24.9Mpa 
Pistons mean speed------------------------------------------10m/s 
Air intake flow------------------------------------------6.8kg/kW.h 
Exhaust gas flow------------------------------------------7.0kg/kW.h 
Exhaust gas temperature after supercharger------------------------------------------�?54ºC 
Supercharger air pressure------------------------------------------0.404MPa (Absolute pressure)
Supercharger air temperature before cylinder------------------------------------------43ºC 
Exhaust main pipe temperature before supercharger-------------------------�?65ºC
Exhaust temperature of every cylinder------------------------------------------�?10ºC
Most combustion pressure------------------------------------------19.0Mpa
Diesel inlet lube pressure------------------------------------------0.4~0.5MPa  
Diesel inlet lube temperature------------------------------------------65ºC 
H.T. water into-machine pressure------------------------------------------0.3~0.4MPa
H.T. water out-machine pressure------------------------------------------90ºC  
Injector coolant water into-machine pressure----------------------------------------0.2~0.5 MPa  
Injector coolant water into-machine temperature --------------------------60ºC   
Fuel into-machine pressure------------------------------------------0.4~0.8MPa  
7.1.2 Generator
Brand of generator------------------------------------------Leroy Somer/ ABB/ Siemens/AVK /HYUNDAI
Generator output power\speed------------------------------------------4500kW/750 r/min
Direction of rotation------------------------------------------Counter clock-wise (as viewed from input end)
PF------------------------------------------0.8 
Voltage, frequency------------------------------------------11kV 50Hz 
Efficiency------------------------------------------97% 
Grade of Protection------------------------------------------IP23 
Winding temperature sensory------------------------------------------2×6Pt100 (sensory) (1 set standby)
Anti-freezing heater------------------------------------------AC230V 
Coolant method------------------------------------------Self-fan coolant
AVR (Automatic Voltage Regulator) ------------------------------------------Installed on generator
7.1.3 High elasticity shaft coupling
   Connect the diesel and generator elastically in order to make sure the output power from diesel deliver to generator.       
Model------------------------------------CRS3420 
7.1.4 Public housing
Fix and support diesel and generator, internally install lube working oil tank and contain lube for diesel.
Lubricant system provides sets with lube of regular flow, temperature and quality, in order to lubricate and cool bearing, operation parts and piston. With separation, filtration and fresh supplement of lube, it can guarantee the function of set lube.. Outside the Power house
Lubricant system is a closed circulation system that connects atmosphere with crankcase breather, as shown in Figure1.
 
 
Figure 1: The principle diagram of lubricant system
Lubricant system contains lube working tank, lube oil pump, lube cooler, lube temperature control valve, lube oil filter, lube pressure regulating valve, lube preheating module and lube cleaned separating module, etc.
7.2.1Lube working tank
Installed public housing of generating sets internally. When the generating sets operate, the oil level must be between upper limit and bottom limit of working tank.
Capacity of lube------------------------------------5 m3
7.2.2Lube oil pump
Lube oil pump has gear type and screw pump, which can make circulation by the lube. Installed safe relief valve internally to prevent the high system pressure. And lube oil pump drives by motor, one standby one uses.
Flow------------------------------------120 m3/h, 8 bar 
7.2.3 Lube cooler
Lube cooler is panel cooler to take accumulated heat of system.
Heat exchange------------------------------------------450 kW
7.2.4 Lube temperature control valve
Lube temperature control valve uses for maintain the constant temperature of system or the change within the small range of system temperature.
Control temperature ------------------------------------------65ºC
7.2.5 Lube oil filter
Lube oil filter can protect the diesel, which can keep off the impurity and lies in the entrance of diesel lube oil. Also the lube oil filter is continuous cross flow current kick-type self-cleaned filter.
Nominal filter fineness------------------------------------------34μm
7.2.6 Lube pressure regulating valve
Lube pressure regulating valve is to regulate the system power of the operation process, which can make the inlet lube within the certain range of pressure of diesel.
Regulating pressure------------------------------------------4-5bar
7.2.7 Lube preheating module
Parallel connection with the main lube system, it may preheat the lube of working tank to guarantee the rap is starting or sudden load. Generally, high temperature coolant water system and lube oil system are preheated with the same module.
Preheating temperature------------------------------------------40 ºC
7.2.8 Lube cleaned separating module
It is connected with the main lube system, very important, which includes lube delivery pump, lube preheating unit, lube separator, sump pump, sump tank, and control switch cabinet. Generally, it separates the moisture and harmful of lube oil dust with centrifugal oil separator.
Effective handling capacity------------------------------------------2.25 m3
7.3 Lube supply system
Lube supply system provide system with accepted, storaged and full lube to make the continuous operation of power station. The new lube is supplied by oil can or tanker truck. Then the workers can fill the tank of every lube working tank.
 
Figure 2: The principle diagram of lube supply system
Figure 2 is lube supply system including baggage hold oil of lubricant unit, lube storage oil can, lube delivery pump, lube capacity gauge, etc.
7.3.1The unloading oil unit of lubricant system
This unit mainly contains unloading oil pump, valve and granular filter. The unloading oil pump is gear type or screw pump that provides lube into storage tank from oil can or tanker truck, and drives by motor, one standby one uses.
The unloading oil flow------------------------------------------25 m3/h, 5bar (one standby one uses)
7.3.2Lube storage tank
   Arranged in the oil house, heated by the steam and the normal operation of power station, the oil level must be between upper limit and bottom limit of working tank.
Capacity of lube storage tank------------------------------------------2x50 m
7.3.3 Lube delivery pump
This unit is gear-type pump with the main function of delivering the lube oil of oil tank to the working oil tank, which drives by motor, one standby one uses.
Delivery pump------------------------------------------15 m3/h, 3bar (one standby one uses)

Figure 3: The diagram of coolant system
 
      Coolant system, divided into two-closed circulation system, the low temperature water circulation system and high temperature water circulation system connect the atmosphere with the expansion radiator. Excepted from cooling the main machine, it needs to guarantee the proper temperature of the engine to meet combustion demand different load. The low temperature water is responsible for cooling supercharge Air II and lube oil, while the high temperature water for cooling cylinder jacket, supercharge Air I and cylinder head. And the external cooling uses the radiator not adding water.

The low temperature water circulation system and high temperature water circulation system include expansion radiator, water pump, radiator and temperature control valve.
7.4.1 Expansion radiator
Expansion radiator compensates the heat expansion of high temperature water system and high temperature water circulation system which has the effect for compensating water and releasing air.
High temperature expansion radiator------------------------------------------250 L
Low temperature expansion radiator------------------------------------------250 L
7.4.2Water pump
Both high temperature water pump and low temperature water pump are all centrifugal water pump, driving by the motor, one standby one uses. High & low temperature water pump deliver high temperature water and low temperature water separately through pump, making the circulation in the return line of their own.
High temperature water pump flow------------------------------------------108m3/h, 5 bar
Low temperature water pump flow------------------------------------------180m3/h, 4.5 bar
7.4.3 Radiator
The low temperature radiator is responsible for cooling supercharge Air II &lube oil and drop off the heat of nozzle, while the high temperature radiator for cooling cylinder jacket, supercharge Air I and cylinder head.
High temperature heat release------------------------------------------3020 kW
Low temperature heat release------------------------------------------2495kW
7.4.4Temperature control valve
   The main function of high temperature water temperature control valve is to keep the constant temperature of out-let high temperature water, while the low temperature water temperature control valve is to keep the constant temperature of in-let low temperature water.
High temperature water temperature control valve-----------------------------90ºC
Low temperature water temperature control valve--------------------------decided by the local conditions
Cool the nozzle as burning the heavy fuel oil.

Figure4:  Nozzle cooling circulation system
 
Nozzle cooling circulation system is a closed forced circulation system for cooling nozzle and taking heat by low temperature water system .Nozzle cooling circulation system mainly contains radiator, centrifugal water pump, cooler, expansion radiator, temperature control valve and compensating water unit, forming the nozzle coolant module with all the equipment.

   Heat exchange------------------------------------------35kW        
   Water flow------------------------------------------3.2 m3/h, 3.0bar
Parallel connection with the main high temperature coolant water system, this unit preheats the cooled water in sets and pipe to guarantee the rapid starting and sudden load of engine. Generally, high temperature coolant water system and lube oil system are preheated with the same module
Preheating temperature------------------------------------------40 ºC
The main function of cooling water supply system is to supply and storage cooling water to meet the water consumption of boiler system, guarantee the normal operation, has the function of softening and dealing with raw water. The cooling water supply system includes softening equipment, radiator and centrifugal water pump.
Systematic radiator-----------------------------------------20 m3
Water supply pump------------------------------------------6m3/h, 3 bar (one standby one uses)
 

7.8 Fuel system

Fuel system includes the parts of unloading oil, storage, delivery, handling, supply and gather of return oil, whose functions are to supply fuel continually to diesel and to preserve the constant flow, pressure, cleanness and viscosity. The heavy fuel oil system has the light oil as standby use, when starting and shutdown changing to light oil supply.

Figure 5: The diagram of fuel system
     Fuel system includes heavy unloading fuel oil unit, heavy fuel oil storage oil-can, heavy fuel oil delivery unit, heavy fuel oil buffer oil cabinet, heavy fuel oil separating module, daily heavy fuel oil cabinet, fuel supply module, oil sludge tank, diesel unloading oil unit and daily diesel cabinet.                                             

7.8.1Heavy unloading fuel oil unit
This unit mainly contains unloading oil pump, valve and granular filter. The unloading oil pump is gear type or screw pump that provides heavy fuel oil into storage tank from tanker truck through pump, and drives by motor, one standby one uses.
Unloading oil flow------------------------------------------70 m3/h, 5bar
7.8.2Heavy fuel oil storage oil-can
   Arranged in the oil house, heated by the steam and with the, normal operation of power station, the oil level must be between upper limit and bottom limit of working tank.
Capacity of heavy fuel oil storage oil-can-----------------------------8000 m3      heated by the steam
                &nb, sp;                  Oil-cans can make 12 machines use 30 days
7.8.3Heavy fuel oil delivery unit
Heavy fuel oil delivery unit has gear type and screw pump, with the main function of delivering heavy fuel oil from storage oil-can to buffer oil cabinet by pump, which drives by motor, one standby one uses.
Delivery pump flow------------------------------------------35m3/h, 8 bar (one standby one uses)
7.8.4Heavy fuel oil buffer oil cabinet
Arranged in the oil house, heated by the steam and with the normal operation of power station, the oil level must be between upper limit and bottom limit of working tank.
Capacity------------------------------------------250 m3     heated by the steam
7.8.5 Heavy fuel oil separating module
This unit, very significant, filtrates the heavy fuel oil with separator, which includes heavy fuel oil delivery pump, heavy fuel oil preheating unit, separator, oil sump and switch control cabinet. The separating impurity is delivered to oil sludge tank by pump.
Effective handling capacity------------------------------------------20 m3/h
7.8.6Daily heavy fuel oil cabinet
Arranged in the oil house, heated by the steam and with the normal operation of power station, the oil level must be between upper limit and bottom limit of working tank.
Capacity------------------------------------------550 m3      
7.8.7Fuel supply module
The main function of this unit is to heat and pressure fuel filtration, to supply the diesel fuel under the circumstance of standard temperature, pressure, viscosity and flow, and to realize the transfer between heavy fuel and light oil. This can change into the light oil between the starting and shutdown. Fuel supply module includes conversion valve of heavy fuel oil and light oil, fuel meter, viscosity control, fuel mixed tank, fuel pressure pump, HFO end heater, fuel cooler, fuel twin filters, and control switch cabinet.
Fuel pressure pump------------------------------------------2.7 m3/h, 8 bar(one standby one uses)
Fuel twin filters------------------------------------------34μm
Fuel mixed tank------------------------------------------70 L
7.8.8 Oil sludge tank
Oil sludge tank, heated by vapor of sludge tank, is used for storage impurity, oil sludge and oil residue after the heavy fuel oil separated.
Capacity of oil sludge tank------------------------------------------5 m3  
7.8.9 Diesel unloading oil unit
This unit mainly contains unloading oil pump, valve and granular filter. The unloading oil pump is gear type or screw pump that provides heavy fuel oil into storage tank from tanker truck through pump, and drives by motor, one standby one uses.
Unloading oil flow------------------------------------------11.52 m3/h, 5bar
7.8.10 Daily diesel cabinet
Arranged in the oil house, playing the role of daily working oil tank and storage diesel, and with the normal operation of power station, the oil level must be between upper limit and bottom limit of working tank. It needs to be heated by the steam in winter
Capacity of daily diesel cabinet------------------------------------------100 m3
7.9 Inlet system
                                             

Figure 6: Diagram of inlet system
Air inlet comes into the cylinder of main machine after turbocharged, to prevent the machine weary and clean air. Muffler is generally installed between turbocharger and air filter, which can reduce the high-frequent noise produced by the turbocharger. The inlet system contains shutter, inlet filter and inlet muffler, which forms the inlet filtration muffler module with each equipment combined.

Air flow------------------------------------------30.5 t/h
Inlet muffler------------------------------------------30dB (A)  
7.10 Exhaust system 
   The burned exhaust gas is pushed out by turbocharger, the temperature from 300ºC to 335ºC depending on the load of engine and used fuel. Before push put exhaust gas, it is recovering waste heat first by the muffler, then by the exhaust boiler. If needed, the second exhaust cleaned system, such as desulphurization equipment, is also installed. The exhaust system includes exhaust muffler, exhaust boiler and desulphurization equipment.

Figure 7: Diagram of exhaust system
                                                                                                                                        

7.10.1 Exhaust muffler
  Function: Reduce the exhaust noise of engine.
Exhaust flow------------------------------------------66.6 t/h
Exhaust muffler------------------------------------------25 dB (A)
7.10.2 Exhaust boiler
 Function: Exhaust energy circulation use for heat of heavy fuel oil, water and lubricating oil, heat tracing, containing exhaust muffler, boiler body, air manifold, water pump and control switch cabinet.
   Evaporation capacity------------------------------------------2.5 t/h
Pressure------------------------------------------9 bar
Temperature------------------------------------------175ºC
7.11 Leaked oil & decontamination module
This unit includes fuel leaked oil tank, lube sludge tank, sludge pump and exhaust oil pump, with function for collecting leaked fuel then supplying heavy fuel oil separating module. The lube oil sludge separated by the unit delivers to the oil sludge tank. Also, the oil sludge separated by heavy fuel oil separating module delivers to the oil sludge tank through the leaked oil pump.
Sludge and exhaust oil pump------------------------------------------1.8 m3/h, 3bar  (one standby one use)
Fuel leaked oil tank------------------------------------------750 L    heated by the steam
Lube sludge tank------------------------------------------750 L    heated by the steam
Compressed air system mainly contains starting air container, working air container, pressure reducing valve and air compressor.
7.12.11 Starting air container------------------------------------------Quantity: 2
Capacity------------------------------------------1000 L, 30bar
7.12.2 Working air container------------------------------------------Quantity: 1
Capacity------------------------------------------500 L, 10bar
7.12.3 Pressure reducing valve------------------------------------------Quantity: 2
Capability------------------------------------------30-7bar
7.12.4 Air compressor------------------------------------------Quantity: 2
Capability------------------------------------------30bar, 52 m3/h
7.13 Electrical equipment of generating sets
Medium voltage switchgear mainly includes switch cabinet of generating sets, feeder switch cabinet and Neutral grounding resistor cabinet.
7.13.1 Switch cabinet of generating sets
Cabinet------------------------------------------KYN28-12
Dimensions------------------------------------------800(W)×1500(D)×2200(H)mm
Breaker------------------------------------------circuit breaker 12kV, 630A,3-pole 25kA
Draw out type circuit breaker
Protection------------------------------------------PWZB
Quantity------------------------------------------12side
7.13.2 Feeder switch cabinet
Cabinet------------------------------------------KYN28-12
Dimensions------------------------------------------800(W)×1500(D)×2200(H)mm
Breaker------------------------------------------circuit breaker 12kV, 2500A, 3-pole 25kA
Draw out type circuit breaker
Protection------------------------------------------PWZB
Quantity------------------------------------------2side
7.13.3 PT cabinet
Dimensions------------------------------------------800(W)×1500(D)×2200(H)mm
Dimensions
Color------------------------------------------Camel gray
Quantity------------------------------------------2 sides
7.13.4 Neutral grounding resistor cabinet
Dimensions------------------------------------------800(W)×1500(D)×2200(H)mm
Dimensions
Color------------------------------------------Camel gray
Quantity------------------------------------------12 side
7.13.5 Power distribution cabinet
Dimensions------------------------------------------800(W)×1500(D)×2200(H)mm
Dimensions
Color------------------------------------------Camel gray
Quantity------------------------------------------2side
7.13.6 Control panel of generating sets
Dimensions------------------------------------------800(W) ×800(D) ×2200(H) mm
Color------------------------------------------Camel gray
Quantity------------------------------------------12 side
Containing control switch, controller, control relay, sensory and alarm display window, etc.
Control function
Engine speed regulator
Digital synchronization & load control
Automatic voltage regulation
Voltage monitoring
Frequency monitoring
Breaker chain
Breaker closing
Breaker tripping
Engine auxiliary module control
Engine starting and shutdown
Alarm display window
Generator control panel displayed the parameter of shutdown and alarm related to electricity and machinery. The parameter of shutdown comes from hard-wired contact end voltage of engine protection system, while the alarm settings is produced by the analog signal from installed sensory according to the main control module. The company can provide different kinds of sensory, such as 4-20mA and PT100.
The displayed alarm & shutdown parameter as follows:
Indicator light of control power supply
Indicator light of engine starting malfunction
Indicator light of emergent shutdown
Engine over-speed indicator light
High engine temperature
High engine oil temperature
Engine coolant level
Low oil pressure
Differential malfunction
Generator over-current
Grounding malfunction
Loss of voltage \ over-voltage
Reverse power
Loss of magnet
High winding temperature
High bearing temperature
High temperature of exhaust pipe
High temperature of exhaust
Low fuel oil level
Low temperature of coolant
Regulator malfunction
Monitor of metal particles in oil pan
Malfunction of lube treatment facility
7.13.7 Direct current cabinet
Dimensions------------------------------------------800(W)×600(D)×2200(H) mm
Quantity------------------------------------------1 side
AC input voltage------------------------------------------AC 400V±15%, 60Hz, three phase four wire system,two input electrical power
DC Output Voltage------------------------------------------DC230V (Working voltage of auxiliary switch cabinet)
Battery capacity------------------------------------------Plumbonic acid battery non-maintenance 100Ah
Precision of voltage regulation------------------------------------------�?-0.5%
Precision of steady current------------------------------------------�?-0.5%
Ripple factor------------------------------------------�?-0.5%
System efficiency------------------------------------------�?0%
Power factor (PF) ------------------------------------------�?.92
Operation noise------------------------------------------�?0dB
Dielectric strength------------------------------------------2000V/min no flashover, no disruption
Grounding resistor------------------------------------------<0.1Ω
Output return circuit------------------------------------------Standard configuration: KM 5, HM 5.
Cabinet structure------------------------------------------Product screen body of our company adopt PK structure, the front with glass doors
Grade of Protection------------------------------------------IP30
7.14 Architectural equipment
Architectural equipment includes infrastructure, power plant, pump plant, maintenance workshop, basic equipment, frozen soils construction referred to local environment and detailed construction schedule, subsequently communicated among the buyer, designing institute and the sealer.
No.
Contents
Remarks
1
Construction project, equipment foundation construction
 
2
Units in place
 
3
Installation of power station equipment
 
4
Oil tank& construction
 
5
heavy fuel oil, diesel oil, lube unloading oil equipment
 
6
Desulphurization equipment
 
9.1.1 The data provided by the sealer should be the national legal system of units, ie International System of Units, language be Chinese, the foreign drawings and files of import parts be provided foreign original documents. The sealer will provide the whole information and drawing according to units technical specifications, technical requirements, scope of supply and guaranteed conditions.
9.1.2 The drawings offered by the sealer should be clear and micro-copied drawings are forbidden to be offered. The organization structure of data is to be clear and strict in logic. The content of data must be correct, accurate, clear and comprehensive, meeting the project.
9.1.3 The sealer should provide the data related with the equipment design in time.
9.1.4 If to be found, the sealer will provide the files and data free of charge to other data not lined in the contract but project to be needed. When the equipment make an improvement, the sealer will provide the new technical data free of charge in time. 
9.2.1 Technical files of coordination with project design data and drawings
The sealer will provide the data and drawings satisfied for the project design, project installation and operation maintenance.
As shown below:
No.
Designation
Qty.
Submission time
Remarks
1
Unit profile, unit installation system drawing, drawings of external auxiliary equipment and connection dimension, installation drawing
1
In one half a month after contract signing
AUTOCAD
E-document
2
The basic reference diagram of generating sets
1
In one half a month after contract signing
AUTOCAD E-document
3
Reference diagram of power plant
1
In one half a month after contract signing
AUTOCAD E-document
4
Principle diagram of system electricity, switch cabinet (one or two return circuit, chain, signal return circuit and external contacts )
1
In one half a month after contract signing
AUTOCAD E-document
5
Switch cabinet, outlet cabinet installation and connecting diagram
1
In one half a month after contract signing
AUTOCAD E-document
9.2.2 The technical files as data and diagram delivered with equipment
The sealer shall provide the needed data and diagram satisfied for the project installation, pre-commissioning, performance acceptance and operation maintenance in time (rather than the following files).
No.
Designation
Qty.
Submission time
Remarks
1
Drawings of unit profile, external auxiliary equipment and connection dimension, installation drawing
One set per set
Delivered with the equipment
 
2
Principle diagram of system electricity, switch cabinet (one or two return circuit, chain, signal return circuit and external contacts )
3
Diagram of units control system
4
Diagram of external auxiliary equipment control system
5
Switch cabinet, outlet cabinet installation and connecting diagram
6
Installation operating instructions
7
Operating instructions
8
Maintenance instructions
9
Atlas of spare parts
10
List of spare parts about operation maintenance and loss
11
List of equipment packing
12
certification by manufacturer

OUR PRODUCER
Scheduled plan of HFO power station project
No.�?/B>ZGZD
Edition\ modification�?/B>2009/ 0
Effective date�?/B>
No.
Period   of    time
 
Project name
 20XX
�?0XX+1�?/DIV>
January
February
March
April
May
June
July
August
September
October
November
December
January
February
March
April
May
June
July
1
Contract signing
 
 
 
 
 
--------�?/DIV>
 
 
 
 
 
 
 
 
 
 
 
 
2
Engine scheduling
 
 
 
 
 
 
----------------------------�?/DIV>
 
 
 
 
 
 
 
 
 
3
Purchase of generator and auxiliary equipment
 
 
 
 
 
 
----------------------------�?/DIV>
 
 
 
 
 
 
 
 
4
Unit production and test delivery
 
 
 
 
 
 
 
 
 
---------�?/DIV>
 
 
 
 
 
 
 
 
5
Delivery of unit and auxiliary equipment
 
 
 
 
 
 
 
 
 
 
----------�?/DIV>
 
 
 
 
 
 
 
6
Equipment installation
 
 
 
 
 
 
 
 
 
 
 
---------�?/DIV>
 
 
 
 
 
 
7
System debug
 
 
 
 
 
 
 
 
 
 
 
 
--------�?/DIV>
 
 
 
 
 
8
Operation training
 
 
 
 
 
 
 
 
 
 
 
 
------�?/DIV>
 
 
 
 
 

11.1 Delivery requirements
The buyer is responsible for delivering the equipment and insurance for transportation expenses.
11.2 Package requirements
The sealer is in charge of equipment package, the package costs included in the total amount. The package and delivery be in accordance with the specifications of GB191-73 pictorial markings for handling of packages.
11.3 Place of delivery
Place of delivery in the sealer’s factory, the buyer should recognize the dispatch goods with the sealer helping to provide truck loading.
11.4 If the damage and loss happen to the equipment in transportation, the sealer will negotiate with the carrier and claim for compensation.
12.1 Warranty period
Warranty period under scope of supply is one year. In the warranty period, the second party is in charge of free, for the problem of building in quality produced by the defects in equipment manufacture. After the warranty period, the sealer provides the technical consultation free of charge and the spare parts at the best price, also responsible for the life-long maintenance.
12.2 Guarantee of field service
In the warranty period, the sealer could provide more timely and comprehensive service guarantee. The spot service engineers sent by OUR PRODUCER are for the after-sales guaranteed work and train the spot operation workers, with food and accommodation provided by the buyer.
12.3 Technical training----to provide the training service free of charge
The sealer can provide the training of five days for ten persons, with food and accommodation provided by the buyer.
12.4 Installation of on-site guidance and commissioning
The sealer is responsible for the installation of equipment and commissioning; while the buyer is for solve the just requirements of the spot service engineers in order to ensure all tasks are carried.
12.5 Commitment
12.5.1 The aptitudes for spot service engineers of the sealer as follows:
a、Compliance with law, each rules and regulations on site.
b、In place on time with strong enterprise and responsibility.
c、Knowing about the equipment design in contract, familiar with the structure, having the spot working experience of the same or similar unit, able to do the spot guidance work correctly.
d�?Healthy for the condition of field work.
12.5.2 The responsibilities of the spot service workers
a、The tasks mainly include the processing about problems of equipment quality, guidance for installation and commissioning, participation in trial running and acceptance functional test.
b、Before installation and commissioning, the technical workers should speak clearly to the buyer, explained and demonstrate the procedures and methods to be going.
c、The service workers have the right to dealing with all the problems of technology and business, ie, the service workers have to resolve the problems within the time allowed by the buyer, if the quality problems happen. If the sealer entrusts the buyer resolve the problem, the spot service workers of sealer must have the power of attorney and afford the related economic responsibility.
d. Pre-negotiation to the buyer about the normal come& go and change of the spot service workers.
12.5.3 The obligations about the buyer
Coordination with the works of the spot service workers and provision with the convenience for life, transport and telecommunications.
The buyer evaluates and recognizes the writing reasonable suggestions, and if the bad result happens for no execution of the buyer, it’s for buyer's account.
Both parties will agree in the contract execution stage about the plan, time, place, and contents of contacts.
 
 




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