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..................................................................................180 m3/h, 8 bar
Lube cooler is panel cooler to take accumulated heat of system.
Heat exchange....................................................................... 680 kW
Lube temperature control valve uses for maintain the constant temperature of system or the change within the small range of system temperature.
7.3 Lube supply system
Lube supply system provide system with accepted, storage 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�?bar (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…�…�…�…�…�…�…�…��?5 m3
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�?bar (one standby one uses)
7.4 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.
Figure 3: The diagram of coolant system
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 …��?.90�?
Low temperature water temperature control valve…�…�..decided by the local conditions
7.5 Nozzle cooling circulation system
Cool the nozzle as burning the heavy fuel oil. 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.
Figure4: Nozzle cooling circulation system
Heat exchange............................................35kW
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. Fuel system includes heavy unloading fuel oil unit, heavy fuel oil storage oil-can, and 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.
Figure 5: The diagram of fuel system
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�?bar
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…�…�…�…�…�800 m3 heated by the steam Oil-cans can make 3 machines use 14 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�? 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 ................................., , , ........................................110 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 .................................................................................. 220 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 m
3/h, 8 bar(one standby one uses�?/DIV>
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�?bar
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
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 Figure with each equipment combined.
6: Diagram of inlet system
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 300�?to 335�?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…�…�…�…�…�…��?.5 t/h
Pressure................................................................9 bar
Temperature.......................................................175�?
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�?bar (one standby one use)
Fuel leaked oil tank........................................750 L heated by the steam
Lube sludge tank..............................................750 L heated by the steam
7.12 Compressed air system
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 point resistance cabinet.
7.13.1 Switch cabinet of generating sets
Cabinet.............................................................. KYN28-12
Dimensions...............................................................800(W)X500(D)X200（H）mm
Breaker................................................................VS1circuit breaker 7.2kV�?30A�?-pole 15kA
Draw out type circuit breaker
Protection.............................................................PWZB
Quantity............................................................3side
7.13.2 Feeder switch cabinet
Cabinet.......................................................... KYN28-12
Dimensions............................................................ 800(W) X500(D) X200（H）mm
Breaker...............................................................VS1 circuit breaker 7.2kV�?000A�?-pole 15kA
Draw out type circuit breaker
Protection............................................................PWZB
Quantity............................................................1 side
7.13.3 PT cabinet
Cabinet............................................................... KYN28-12
Dimensions.........................................................800(W) X500(D) X200(H) mm
Quantity..........................................1 side
7.13.4 Neutral point resistance cabinet
Dimensions.................................................800(W) X500(D)
X200(H)mm Color .................................................................Camel gray
Quantity................................................................3side
7.13.5 Power distribution cabinet
Dimensions......................................................800(W) X500(D)
X200(H)mm Color ..................................................Camel gray
Quantity...........................................................1side
7.13.6 Control panel of generating sets
Dimensions........................................................... 800(W) X00(D)
X200(H) mm Color ...................................................Camel gray
Quantity....................................................3 sides
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 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)X600(D)X2200(H)mm
Quantity........................................................1 side
AC input voltage........................................ AC 400V±5%�?0Hz，three phase four wire system，two input electrical power
DC Output Voltage ................................ DC220V (Working voltage of auxiliary switch cabinet)
Battery capacity..................................... Plum bionic acid battery non-maintenance 100Ah
Precision of voltage regulation…�…�…�…�…�…�…�.. ≤�?.5%
Precision of steady current…�…�…�…�…�.≤�?.5%
Ripple factor..........................................................≤�?.5%
System efficiency..................................�?0%
Power factor (PF)............................................. �?.92
Operation noise ......................................................�?0dB
Dielectric strength.........................................2000V/min no flashover, no disruption
Grounding resistor............................................... �?.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.
8. The practicable contents for the contractor
|
No. |
Contents |
Remarks |
|
1 |
The whole design of power station |
Project design satisfied for local environment |
|
2 |
Construction project, equipment foundation construction |
|
|
3 |
Units in place |
|
|
4 |
Installation of power station equipment |
|
|
5 |
Pipes (oil pipe, water pipe, air pipe, smoke pipe, tracing pipe, etc.) |
|
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6 |
Oil tank& construction |
|
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7 |
heavy fuel oil, diesel oil, lube unloading oil equipment |
|
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8 |
Unit station service transformer, generator transformer, electricity transmission |
|
|
9 |
Cable, wire, bridge |
|
|
10 |
125kVA auxiliary machine |
|
9. Technical data and drawings of products
9.1 General requirements
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 makes an improvement, the sealer will provide the new technical data free of charge in time.
9.2 Basic Requirements of information presentation
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).
|
|
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 |
10. Progress of production and delivery
|
PT |
Scheduled plan of HFO power station project |
No.：ZGZD |
|
Edition\modification�?009/ 0 |
|
Effective date�?/DIV> |
|
NO |
Period of time
project name |
20xx |
20xx+1 |
|
Jan
uary |
Febru
ary |
Mar
ch |
April |
May |
June |
July |
Aug
ust |
Septe
mber |
Octo
ber |
Nove
mber |
Dece
mber |
Janu
ary |
Febr
uary |
March |
April |
May |
June |
July |
|
1 |
Contract signing |
-------�?/DIV> |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2 |
Engine scheduling |
|
|
------------------------------------------------�?/DIV> |
|
|
|
|
|
|
|
|
3 |
Purchase of generator and auxiliary equipment Unit production and test |
|
|
----------------------------------------�?/DIV> |
|
|
|
|
|
|
|
|
|
4 |
delivery |
|
|
|
|
|
|
|
|
|
|
|
|
-----�?/DIV> |
|
|
|
|
|
|
5 |
Delivery of unit and auxiliary equipment |
|
|
|
|
|
|
|
|
|
|
|
|
|
---------�?/DIV> |
|
|
|
|
6 |
Equipment installation |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
-----�?/DIV> |
|
|
|
7 |
System debug |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
----�?/DIV> |
|
|
8 |
Operation training |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
---�? |
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. The scope of service protection
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 PRODUCTER 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.
13. Contacts
Both parties will agree in the contract execution stage about the plan, time, place, and contents of contacts.
