CN106194431B - Gas turbine presurized water reactor steam turbine combined cycle system without separator - Google Patents
Gas turbine presurized water reactor steam turbine combined cycle system without separator Download PDFInfo
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- CN106194431B CN106194431B CN201610458571.9A CN201610458571A CN106194431B CN 106194431 B CN106194431 B CN 106194431B CN 201610458571 A CN201610458571 A CN 201610458571A CN 106194431 B CN106194431 B CN 106194431B
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Abstract
Gas turbine presurized water reactor steam turbine combined cycle system of the present invention without separator is related to a kind of the energy saving of large capacity, low-carbon, clean energy resource system；Combined cycle system is formed with heavy duty gas turbine and presurized water reactor steam turbine, secondary circuit main steam temperature is lifted up by 272.8 DEG C using the heat of gas turbine exhaust gas, with the difference of number of units and load that the difference and heavy duty gas turbine of presurized water reactor steam production are put into, DCS dcs controls the sliding temperature operation between 535 DEG C to 630 DEG C of secondary circuit main steam temperature, high pressure cylinder steam discharge has the considerable degree of superheat, cancel separator and not only simplifies therrmodynamic system, and the pressure loss of separator is reduced, improve the thermal efficiency；The thermal efficiency of the gas turbine presurized water reactor steam turbine combined cycle system of no separator is also above the gas turbine presurized water reactor steam turbine combined cycle system for having separator.
Description
(1) technical field：
Gas turbine presurized water reactor steam turbine combined cycle system of the present invention without separator is related to a kind of big
The energy saving of capacity, low-carbon, clean energy resource system.Gas turbine presurized water reactor steam turbine combined cycle without separator
The thermal efficiency of system is apparently higher than the thermal efficiency of the presurized water reactor steam turbine of the prior art；For the electricity of combustion gas additional issue, nothing
The thermal efficiency of the gas turbine presurized water reactor steam turbine combined cycle system of separator is apparently higher than the prior art
Gas-steam Combined Cycle；The thermal effect of gas turbine presurized water reactor steam turbine combined cycle system without separator
Rate is also above the gas turbine presurized water reactor steam turbine combined cycle system for having separator.
(2) background technology：
Presurized water reactor (Pressurized Water Reactor) makees coolant and moderator using pressurization light-water, and water exists
The nuclear reactor not boiled in heap.Nuclear fuel is slightly enriched uranium.It is universally acknowledged enlarged technology maturation, operational safety, economy
Practical nuclear reaction heap-type.AP1000 can be as the mainstream product of third generation pressurized-water reactor nuclear power plant.
The major parameter of AP1000 generation Ⅲ nuclear powers station steam generator (Steam Generator)：
The major parameter of AP1000 generation Ⅲ nuclear powers station steam turbine generator：
The saturated vapor that two steam generators generate is sent into steam turbine high-pressure cylinder by secondary circuit main steam system, in steamer
Steam discharge enters 2 external separators after the acting of machine high pressure cylinder expansion；Under the conditions of rated load, external carbonated drink
The humidity of 10%-13% contained in high-pressure turbine steam discharge is reduced to about 0.17% or smaller by separator/heater；It is external
Formula separator is equipped with 2 grades of reheaters, and the 1st grade uses high pressure cylinder steam extraction for heat source, and the 2nd grade uses main steam for heat
The steam for entering reheater is heated to superheat state by source；Steam heated after by 6 pipelines enter 3 double-current low pressure
Steam turbine；Some vapor is from high pressure cylinder and low pressure (LP) cylinder extraction for carrying out backheat to water supply and condensed water.Main condenser is to condensation
Water carries out deoxygenation and waste heat is passed to circulation；Water supply injects steam generator by secondary circuit main feed pump；Steam turbine is 6
Grade water supply backheat provides steam extraction；The exhaust point of high pressure cylinder provides steam extraction for No. 1 high-pressure heater, and high pressure cylinder steam discharge is carried to oxygen-eliminating device
For steam extraction, the 3rd, 4,5,6 grade of exhaust point of low pressure (LP) cylinder provides steam extraction to the 3rd, 4,5, No. 6 low-pressure heater respectively, and No. 5 low pressure add
Hot device and No. 6 low-pressure heaters are usually placed in the throat of condenser.
The nuclear power generating sets almost all that China (including Taiwan) has put into commercial operation is presurized water reactor；From technology, peace
Entirely, economic, environmental protection and industrial character see that compacted clay liners should not participate in peak load regulation network, especially continually carry out substantially
Spend load adjustment.
According to the height of ignition temperature when work and power of the assembling unit size, power station A-B-C- is divided into heavy duty gas turbine
Eight ranks of D-E-F-G-H.The intake air temperature of gas turbine is higher, and the power of the assembling unit is bigger, and rank is higher, and the thermal efficiency is higher, leads to
The delivery temperature of normal gas turbine is also higher.
Prior art gas turbine usually forms gas-steam combined cycle system with waste heat boiler, steam turbine；The steaming
Steam turbine reheating or non-reheating, without regenerative steam mouth, in having, low pressure filling import；The steam turbine is furnished with necessary subsidiary engine,
Such as condensate pump, water circulating pump, condenser, vacuum pump, cooling tower, lubricating oil system, Control ＆ Protective, bypath system；It should
Waste heat boiler is commonly designed pressure in pairs or three pressures, provides the superheated steam of different pressures respectively, each pressure has oneself
Economizer, evaporator, drum, superheater；Usual gas turbine powered generator institute generated energy accounts for about gas-steam combined and follows
The last 2/3 of ring unit；The generator institute generated energy of steam turbine driving accounts for about the 1/3 weak of gas-steam combined cycle set.
(3) invention content：
Technical problem to be solved：
The steam generator of presurized water reactor can only produce the saturated vapor that secondary circuit uses, and not have steam superheating ability；It is external
The major function of formula separator is that the humidity of 10%-13% contained in high-pressure turbine steam discharge is reduced to about
0.17% or smaller, in order to obtain the degree of superheat of the low pressure (LP) cylinder entrance less than 90K, or even secondary circuit main steam has been employed as external
The heat source of formula separator；The high pressure cylinder of presurized water reactor steam turbine is substantially a wet steam turbine, each turbine
The movable vane piece of grade works under the conditions of moist steam, is unfavorable for movable vane piece long period safe operation；Low pressure (LP) cylinder exhaust steam moisture is also quite high
In coal-fired extra-supercritical unit；High pressure cylinder, low pressure (LP) cylinder internal efficiency only 80% or so, heat consumption are up to 10405.7kJ/kWh and (deduct
Electronic pump power), the thermal efficiency only 34.6% (deducts electronic pump power).
Solve the technical solution of its technical problem use：
Gas turbine presurized water reactor steam turbine combined cycle system of the present invention without separator take with it is existing
The entirely different technology path of technology forms combined cycle system with heavy duty gas turbine and presurized water reactor steam turbine, utilizes combustion
Secondary circuit main steam temperature is lifted up by the heat of tail gas of gas turbine by 272.8 DEG C, with the difference and again of presurized water reactor steam production
The number of units of type gas turbine input and the difference of load, DCS dcs control secondary circuit main steam temperature at 535 DEG C
Sliding temperature operation, high pressure cylinder steam discharge have the considerable degree of superheat between to 630 DEG C, cancel separator and not only simplify heat
Force system, and the pressure loss of separator is reduced, improve the thermal efficiency；Gas turbine without separator
The thermal efficiency of presurized water reactor steam turbine combined cycle system is apparently higher than the thermal efficiency of the presurized water reactor steam turbine of the prior art；Just
For the electricity of combustion gas additional issue, the thermal effect of the gas turbine presurized water reactor steam turbine combined cycle system of no separator
Rate is apparently higher than the Gas-steam Combined Cycle of the prior art；Gas turbine presurized water reactor vapor wheel without separator
The thermal efficiency of machine combined cycle system is also above the gas turbine presurized water reactor steam turbine combined cycle for having separator
System.
Gas turbine presurized water reactor steam turbine combined cycle system of the present invention without separator, feature exist
In：Automobile fitting steam pipe (2), steam turbine low pressure (LP) cylinder (3), main steam control valve are led including steam turbine high pressure cylinder (1), high pressure cylinder steam discharge
(4), condenser (5), No. 1 high-pressure heater (6), secondary circuit main feed pump (7), oxygen-eliminating device (8), No. 3 low-pressure heaters (9), 4
Number low-pressure heater (10), No. 5 low-pressure heaters (11), No. 6 low-pressure heaters (12), condensate pump (13), waste heat boiler mistake
Hot device (14), waste heat boiler high-pressure economizer (15), waste heat boiler low-pressure coal saver (16), steam generator (17), presurized water reactor
(18), primary Ioops main feed pump (19), gas turbine (20), DCS dcs；Nuclear fuel rod produces in presurized water reactor (18)
Primary Ioops pressure water of the raw heat through cycle generates secondary circuit saturated vapor in steam generator (17)；Steam generator
(17) saturated vapor outlet is connected with the steam inlet of waste-heat boiler superheater (14)；The steaming of waste-heat boiler superheater (14)
Vapor outlet is connected through main inlet throttle-stop valve, main steam control valve (4) with the import of steam turbine high pressure cylinder (1)；Waste heat boiler high pressure saves coal
The water side of device (15) is in parallel with the water side of No. 1 high-pressure heater (6), and secondary circuit main feed pump (7) is heated in a manner of shunting and is gone out
The high-pressure feed water of mouth；The water side of waste heat boiler low-pressure coal saver (16) with by No. 3 low-pressure heaters (9), No. 4 low-pressure heaters
(10), the water side for the low-pressure heater group that No. 5 low-pressure heaters (11), No. 6 low-pressure heaters (12) are composed in series is in parallel, to divide
The condensed water of mode heat-setting water pump (13) outlet of stream；The turbo compressor import of gas turbine (20) is through air filter screen group
Air is sucked, compressed air is mixed with natural gas in the low nitrogen burning system of gas turbine (20) and fully burnt, high
Warm high-pressure gas does work in the gas turbine group of gas turbine (20) drives the generator of gas turbine side；Gas turbine (20)
Gas turbine group outlet gas turbine exhaust gas, through flue enter include waste-heat boiler superheater (14), waste heat boiler high pressure
Economizer (15), waste heat boiler low-pressure coal saver (16) gas-turbine waste heat boiler cigarette side entrance；Gas turbine waste heat pot
The cigarette side outlet of stove is connect with chimney or is discharged fume by cooling tower in a manner of nicotinic acids；Heavy duty gas turbine is steamed with presurized water reactor
Steam Turbine is upward by 272.8 DEG C by secondary circuit main steam temperature using the heat of gas turbine exhaust gas at combined cycle system
It is promoted, with number of units, the difference of load of difference and the heavy duty gas turbine input of presurized water reactor steam production, secondary circuit main steam temperature
The sliding temperature operation between 535 DEG C to 630 DEG C；DCS dcs coordinate control presurized water reactor (18), gas turbine (20),
Steam turbine high pressure cylinder (1), steam turbine low pressure (LP) cylinder (3) are put into the difference and heavy duty gas turbine of presurized water reactor steam production
The difference of number of units and load, the sliding temperature operation between 535 DEG C to 630 DEG C of control secondary circuit main steam temperature；Steam turbine high pressure
Cylinder (1) is double fluid, tangential admission, and rotor speed 1500rpm or 1800rpm, through-current capability is by highest throttle (steam) temperature and most
High mass flow reaches simultaneously to be designed, and rotor, high temperature air chamber, nozzle, the movable vane of steam turbine high pressure cylinder (1) use
Material meets the requirement of continuous operation under highest throttle (steam) temperature, the rotor of steam turbine high pressure cylinder (1), the intensity of nozzle, movable vane
Requirement when meeting highest throttle (steam) temperature and best quality flow while reaching to material, and have enough safety allowances；Steam
Turbine low pressure (LP) cylinder (3) is made of by operating back pressure difference the low pressure (LP) cylinder of 3 or 4 coaxial double fluids, tangential admission；Vapor wheel
The maximum current capacity of machine low pressure (LP) cylinder (3) is by 343.5 DEG C of designs of throttle (steam) temperature；Gas turbine (20) is by 6 F grades of gas turbine groups
At 6 F grades of gas turbines respectively drive respective generator, the combustion gas wheel of the gas turbine group outlet of 6 F grades of gas turbines
Tail gas is discharged into same waste heat boiler；High pressure cylinder steam discharge leads the input end connection steam turbine high pressure cylinder (1) of automobile fitting steam pipe (2)
Steam drain, outlet end connects the air intake of 3 or 4 double-current low pressure (LP) cylinders, and high pressure cylinder steam discharge leads automobile fitting steam pipe (2) at full capacity
Crushing is no more than 10kPa；Gas-turbine waste heat boiler includes waste-heat boiler superheater (14), waste heat boiler high-pressure economizer
(15), waste heat boiler low-pressure coal saver (16), horizontal arrangement, waste-heat boiler superheater (14) is by 3 sections of high temperature, medium temperature, low temperature mistakes
Hot device heating surface composition, is in counter-flow arrangement with flue gas flow；Waste heat boiler high-pressure economizer system configuration has corresponding regulating valve
Door group, the assignment of traffic for adjusting the water side of waste heat boiler high-pressure economizer (15) and the water side of No. 1 high-pressure heater (6)；
Waste heat boiler low-pressure economizer system is configured with corresponding control valve group, for adjusting waste heat boiler low-pressure coal saver (16)
Water side with by No. 3 low-pressure heaters (9), No. 4 low-pressure heaters (10), No. 5 low-pressure heaters (11), No. 6 low-pressure heaters
(12) assignment of traffic of the water side for the low-pressure heater group being composed in series.
Advantageous effect of the invention：
● presurized water reactor steam turbine is changed into main steam temperature sliding temperature between 535 DEG C to 630 DEG C by wet steam turbine
The import enthalpy of presurized water reactor steam turbine main steam, the internal efficiency of each turbine stage is greatly improved in the steam turbine of operation
It significantly improves, under conditions of identical import mass flow, effective enthalpy drop of presurized water reactor steam turbine is greatly improved, export
Shaft power increases considerably；
● DCS dcs controls the sliding temperature operation between 535 DEG C to 630 DEG C of secondary circuit main steam temperature, high
Cylinder pressure steam discharge has the considerable degree of superheat, cancels separator and not only simplifies therrmodynamic system, and reduces carbonated drink point
The pressure loss from reheater improves system thermal efficiency；
● each turbine stage of steam turbine high pressure cylinder eliminates water erosion risk, and safety significantly improves；
● steam turbine low pressure (LP) cylinder major part turbine stage eliminates water erosion risk, and safety significantly improves, exhaust stage blade and end
Preceding grade blade humidity is substantially reduced, and safety, economy significantly improve；
● since exhaust stage blade and penultimate stage blade humidity are substantially reduced, safety is controllable, provide further decrease it is low
Cylinder pressure exhaust pressure improves the space of the thermal efficiency of gas turbine presurized water reactor steam turbine combined cycle system；
● the setting of waste heat boiler high-pressure economizer (15) and waste heat boiler low-pressure coal saver (16) makes waste heat boiler overheat
The fume afterheat of device (14) outlet is fully utilized, and exhaust gas temperature can drop to 45 DEG C or lower, 1 section be expelled from
Steam extraction, 3 sections of steam extractions, 4 sections of steam extractions, 5 sections of steam extractions, 6 sections of steam extractions can continue to do work in steam turbine low pressure (LP) cylinder (3), be converted to
Useful shaft power；
● rely on the gas turbine presurized water reactor steam turbine combined cycle system without separator of the invention can be with
Half speed (1800rpm or 1500rpm) huge steam turbine of design, manufacture single shaft output 2000MW or more high output；
● rely on the gas turbine presurized water reactor steam turbine combined cycle system without separator of the invention can be with
Half speed (1800rpm or 1500rpm) steam turbine generator of design, manufacture individual capacity 2200MVA or higher capacity；
● rely on the gas turbine presurized water reactor steam turbine combined cycle system without separator of the invention can be with
It designs, manufacture large and medium-sized air cooling turbo-generator, be suitable for inland water-deficient area；
● gas turbine presurized water reactor steam turbine combined cycle system of the present invention without separator is built into
This adds independent gas-steam combined cycle set significantly lower than the independent compacted clay liners with capacity；
● the occupation of land face of gas turbine presurized water reactor steam turbine combined cycle system of the present invention without separator
Product considerably less than adds independent gas-steam combined cycle set with the independent compacted clay liners of capacity；
● the carbon emission of gas turbine presurized water reactor steam turbine combined cycle system of the present invention without separator
Amount considerably less than adds independent gas-steam combined cycle set with the independent compacted clay liners of capacity；
● the unit of gas turbine presurized water reactor steam turbine combined cycle system of the present invention without separator fills
Machine capacity water consumption considerably less than adds independent Gas-steam Combined Cycle machine with the independent compacted clay liners of capacity
Group；
● the power supply volume of gas turbine presurized water reactor steam turbine combined cycle system of the present invention without separator
The independent compacted clay liners of significantly greater than identical nuclear fuel consumption add the independent gas-steam combined of identical natural gas consumption
Cycle Unit；
● the import enthalpy such as by presurized water reactor steam turbine due to increasing substantially main steam, high pressure cylinder exhaust steam pressure with
Low pressure (LP) cylinder initial steam pressure difference substantially reduces, and the internal efficiency of each turbine stage significantly improves and the electricity whole reduction issued additional is to combustion gas-
Steam Combined Cycle, the net thermal efficiency of this Gas-steam Combined Cycle without independent turbine system may be up to 68% or
Higher.
(4) it illustrates：
Fig. 1 is gas turbine presurized water reactor steam turbine combined cycle system figure.
In Fig. 1：
1 steam turbine high pressure cylinder, 2 high pressure cylinder steam discharges lead automobile fitting steam pipe,
3 steam turbine low pressure (LP) cylinders, 4 main steam control valves,
5 condensers, 6 No. 1 high-pressure heaters,
7 secondary circuit main feed pumps, 8 oxygen-eliminating devices,
9 No. 3 low-pressure heaters, 10 No. 4 low-pressure heaters,
11 No. 5 low-pressure heaters, 12 No. 6 low-pressure heaters,
13 condensate pumps, 14 waste-heat boiler superheaters,
15 waste heat boiler high-pressure economizers, 16 waste heat boiler low-pressure coal savers,
17 steam generators, 18 presurized water reactors,
19 primary Ioops main feed pumps, 20 gas turbines,
(5) specific implementation mode：
Embodiment 1：
In conjunction with Fig. 1 with the presurized water reactor of an AP1000, steam generator, the steam turbine generator group of redesign with
Illustrate the preferred embodiment for realizing the present invention for 6 F grades of gas turbines and mating waste heat boiler.
Gas turbine presurized water reactor steam turbine combined cycle system of the present invention without separator includes vapor wheel
Machine high pressure cylinder (1), high pressure cylinder steam discharge lead automobile fitting steam pipe (2), steam turbine low pressure (LP) cylinder (3), main steam control valve (4), condenser
(5), No. 1 high-pressure heater (6), secondary circuit main feed pump (7), oxygen-eliminating device (8), No. 3 low-pressure heaters (9), No. 4 low-pressure heatings
It is device (10), No. 5 low-pressure heaters (11), No. 6 low-pressure heaters (12), condensate pump (13), waste-heat boiler superheater (14), remaining
Heat boiler high-pressure economizer (15), waste heat boiler low-pressure coal saver (16), steam generator (17), presurized water reactor (18), primary Ioops
Main feed pump (19), gas turbine (20), DCS dcs；The heat warp that nuclear fuel rod generates in presurized water reactor (18)
The primary Ioops pressure water of cycle generates secondary circuit saturated vapor in steam generator (17)；The saturation of steam generator (17) is steamed
Vapor outlet is connected with the steam inlet of waste-heat boiler superheater (14)；The steam (vapor) outlet of waste-heat boiler superheater (14) is through main vapour
Door, main steam control valve (4) are connected with the import of steam turbine high pressure cylinder (1)；The water side of waste heat boiler high-pressure economizer (15)
It is in parallel with the water side of No. 1 high-pressure heater (6), the high-pressure feed water of secondary circuit main feed pump (7) outlet is heated in a manner of shunting；
The water side of waste heat boiler low-pressure coal saver (16) adds with by No. 3 low-pressure heaters (9), No. 4 low-pressure heaters (10), No. 5 low pressure
The water side for the low-pressure heater group that hot device (11), No. 6 low-pressure heaters (12) are composed in series is in parallel, is heated in a manner of shunting solidifying
Bear water the condensed water of pump (13) outlet；The turbo compressor import of gas turbine (20) sucks air, compression through air filter screen group
Air afterwards is mixed with natural gas in the low nitrogen burning system of gas turbine (20) and is fully burnt, and high-temperature high-pressure fuel gas is firing
The generator of acting driving gas turbine side in the gas turbine group of gas-turbine (20)；The gas turbine group of gas turbine (20) goes out
The gas turbine exhaust gas of mouth, it includes waste-heat boiler superheater (14), waste heat boiler high-pressure economizer (15), waste heat to enter through flue
The cigarette side entrance of the gas-turbine waste heat boiler of low-pressure coal saver for boiler (16)；The cigarette side outlet and cigarette of gas-turbine waste heat boiler
Chimney is connected or is discharged fume by cooling tower in a manner of nicotinic acids；Heavy duty gas turbine is combined with presurized water reactor steam turbine composition to follow
Secondary circuit main steam temperature is lifted up by 272.8 DEG C using the heat of gas turbine exhaust gas, is steamed with presurized water reactor by loop system
Amount difference and heavy duty gas turbine input number of units, the difference of load, secondary circuit main steam temperature 535 DEG C to 630 DEG C it
Between sliding temperature operation；DCS dcs coordinates control presurized water reactor (18), gas turbine (20), steam turbine high pressure cylinder
(1), steam turbine low pressure (LP) cylinder (3), the number of units put into the difference and heavy duty gas turbine of presurized water reactor steam production and load are not
Together, control secondary circuit main steam temperature sliding temperature operation between 535 DEG C to 630 DEG C.
Steam turbine high pressure cylinder (1) double fluid, tangential admission, 1500rpm or 1800rpm, through-current capability by highest into
Stripping temperature and best quality flow reach simultaneously to be designed；The rotor of steam turbine high pressure cylinder (1), high temperature air chamber, nozzle,
The material that movable vane uses meets the requirement of continuous operation under highest throttle (steam) temperature；The rotor of steam turbine high pressure cylinder (1), nozzle,
The requirement when intensity of movable vane meets highest throttle (steam) temperature and best quality flow while reaching to material, and have enough safety
Allowance.
Steam turbine low pressure (LP) cylinder (3) is by operating back pressure difference by 3 or the low pressure of 4 coaxial double fluids, tangential admission
Cylinder forms；The maximum current capacity of steam turbine low pressure (LP) cylinder (3) is by 343.5 DEG C of designs of throttle (steam) temperature.
Gas turbine (20) is made of 6 F grades of gas turbines；6 F grades of gas turbines respectively drive respective generator；6
The gas turbine exhaust gas of the gas turbine group outlet of F grades of gas turbines of platform is discharged into same waste heat boiler；Gas turbine (20) is another
One preferred embodiment is made of 3 H grades of gas turbines；Gas turbine (20) another preferred embodiment is made of 4 G grades of gas turbines.
High pressure cylinder steam discharge leads the steam drain of the input end connection steam turbine high pressure cylinder (1) of automobile fitting steam pipe (2), and outlet end connects
The air intake of 3 or 4 double-current low pressure (LP) cylinders is connect, high pressure cylinder steam discharge leads automobile fitting steam pipe (2), and crushing is no more than 10kPa at full capacity.
Gas-turbine waste heat boiler includes waste-heat boiler superheater (14), waste heat boiler high-pressure economizer (15), waste heat pot
Stove low-pressure coal saver (16)；Horizontal arrangement；Waste-heat boiler superheater (14) is by 3 sections of high temperature, medium temperature, low temperature superheater surface groups
At with flue gas flow in counter-flow arrangement；Waste heat boiler high-pressure economizer system configuration has corresponding control valve group, for adjusting
The assignment of traffic of the water side of waste heat boiler high-pressure economizer (15) and the water side of No. 1 high-pressure heater (6)；Waste heat boiler low pressure saves
Coal device system configuration has corresponding control valve group, and the water side for adjusting waste heat boiler low-pressure coal saver (16) is low with by No. 3
Pressure heater (9), No. 4 low-pressure heaters (10), No. 5 low-pressure heaters (11), No. 6 low-pressure heaters (12) are composed in series low
Press the assignment of traffic of the water side of heater group.
Claims (1)
1. a kind of gas turbine presurized water reactor steam turbine combined cycle system of no separator, it is characterised in that：Packet
Include steam turbine high pressure cylinder (1), high pressure cylinder steam discharge leads automobile fitting steam pipe (2), steam turbine low pressure (LP) cylinder (3), main steam control valve (4),
Condenser (5), No. 1 high-pressure heater (6), secondary circuit main feed pump (7), oxygen-eliminating device (8), No. 3 low-pressure heaters (9), No. 4 it is low
Press heater (10), No. 5 low-pressure heaters (11), No. 6 low-pressure heaters (12), condensate pump (13), waste-heat boiler superheater
(14), waste heat boiler high-pressure economizer (15), waste heat boiler low-pressure coal saver (16), steam generator (17), presurized water reactor (18),
Primary Ioops main feed pump (19), gas turbine (20), DCS dcs；Nuclear fuel rod generates in presurized water reactor (18)
Primary Ioops pressure water of the heat through cycle generates secondary circuit saturated vapor in steam generator (17)；Steam generator (17)
Saturated vapor outlet is connected with the steam inlet of waste-heat boiler superheater (14)；The steam (vapor) outlet of waste-heat boiler superheater (14)
It is connected with the import of steam turbine high pressure cylinder (1) through main inlet throttle-stop valve, main steam control valve (4)；Waste heat boiler high-pressure economizer (15)
Water side it is in parallel with the water side of No. 1 high-pressure heater (6), heated in a manner of shunting secondary circuit main feed pump (7) outlet height
Press water supply；The water side of waste heat boiler low-pressure coal saver (16) with by No. 3 low-pressure heaters (9), No. 4 low-pressure heaters (10), No. 5
The water side for the low-pressure heater group that low-pressure heater (11), No. 6 low-pressure heaters (12) are composed in series is in parallel, in a manner of shunting
The condensed water of heat-setting water pump (13) outlet；The turbo compressor import of gas turbine (20) sucks empty through air filter screen group
Gas, compressed air are mixed with natural gas in the low nitrogen burning system of gas turbine (20) and are fully burnt, high temperature and pressure
Combustion gas is done work in the gas turbine group of gas turbine (20) drives the generator of gas turbine side；The combustion gas of gas turbine (20)
The gas turbine exhaust gas of turbine group outlet, it includes waste-heat boiler superheater (14), waste heat boiler high-pressure economizer to enter through flue
(15), the cigarette side entrance of the gas-turbine waste heat boiler of waste heat boiler low-pressure coal saver (16)；The cigarette of gas-turbine waste heat boiler
Side outlet is connect with chimney or is discharged fume by cooling tower in a manner of nicotinic acids；Heavy duty gas turbine and presurized water reactor steam turbine
Combined cycle system is formed, is lifted up secondary circuit main steam temperature by 272.8 DEG C using the heat of gas turbine exhaust gas, with
Number of units, the difference of load of difference and the heavy duty gas turbine input of presurized water reactor steam production, secondary circuit main steam temperature is at 535 DEG C
Sliding temperature operation between to 630 DEG C；DCS dcs coordinates control presurized water reactor (18), gas turbine (20), steam turbine
High pressure cylinder (1), steam turbine low pressure (LP) cylinder (3), the number of units put into the difference and heavy duty gas turbine of presurized water reactor steam production and negative
The difference of lotus, the sliding temperature operation between 535 DEG C to 630 DEG C of control secondary circuit main steam temperature；Steam turbine high pressure cylinder (1) is double
Stream, tangential admission, rotor speed 1500rpm or 1800rpm, through-current capability press highest throttle (steam) temperature and best quality flow
Reach simultaneously and be designed, the material that rotor, high temperature air chamber, nozzle, the movable vane of steam turbine high pressure cylinder (1) use meets most
The requirement of continuous operation under high throttle (steam) temperature, the rotor of steam turbine high pressure cylinder (1), nozzle, movable vane intensity meet highest into
Requirement when stripping temperature and best quality flow reach simultaneously to material, and have enough safety allowances；Steam turbine low pressure (LP) cylinder
(3) it is made of the low pressure (LP) cylinder of 3 or 4 coaxial double fluids, tangential admission by operating back pressure difference；Steam turbine low pressure (LP) cylinder
(3) maximum current capacity is by 343.5 DEG C of designs of throttle (steam) temperature；Gas turbine (20) is made of 6 F grades of gas turbines, 6 F
Grade gas turbine respectively drives respective generator, the gas turbine exhaust gas row of the gas turbine group outlet of 6 F grades of gas turbines
Enter same waste heat boiler；High pressure cylinder steam discharge leads the steam discharge of the input end connection steam turbine high pressure cylinder (1) of automobile fitting steam pipe (2)
Mouthful, outlet end connects the air intake of 3 or 4 double-current low pressure (LP) cylinders, and high pressure cylinder steam discharge leads automobile fitting steam pipe (2), and crushing is not at full capacity
More than 10kPa；Gas-turbine waste heat boiler includes waste-heat boiler superheater (14), waste heat boiler high-pressure economizer (15), waste heat
Low-pressure coal saver for boiler (16), horizontal arrangement, waste-heat boiler superheater (14) is by 3 sections of high temperature, medium temperature, low temperature superheater surfaces
Composition is in counter-flow arrangement with flue gas flow；Waste heat boiler high-pressure economizer system configuration has corresponding control valve group, for adjusting
Save the assignment of traffic of the water side of heat boiler high-pressure economizer (15) and the water side of No. 1 high-pressure heater (6)；Waste heat boiler low pressure
Economizer system is configured with corresponding control valve group, for adjust the water side of waste heat boiler low-pressure coal saver (16) with by No. 3
Low-pressure heater (9), No. 4 low-pressure heaters (10), No. 5 low-pressure heaters (11), No. 6 low-pressure heaters (12) are composed in series
The assignment of traffic of the water side of low-pressure heater group.
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| CN108204257B (en) * | 2016-12-16 | 2020-10-20 | 上海电气电站设备有限公司 | High-parameter nuclear turbine without configuration steam-water separation reheater |
| US10900418B2 (en) * | 2017-09-28 | 2021-01-26 | General Electric Company | Fuel preheating system for a combustion turbine engine |
| CN109268085A (en) * | 2018-08-06 | 2019-01-25 | 国核电力规划设计研究院有限公司 | The pressurized-water reactor nuclear power plant circulatory system and pressurized-water reactor nuclear power plant electricity-generating method |
| CN112177695A (en) * | 2020-09-29 | 2021-01-05 | 西安热工研究院有限公司 | Small pressurized water reactor power generation system adopting micro superheated steam |
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| RU2547828C1 (en) * | 2014-01-31 | 2015-04-10 | Рашид Зарифович Аминов | Steam-gas unit of two-circuit nuclear power plant |
| CN104314628B (en) * | 2014-10-14 | 2016-02-10 | 华电电力科学研究院 | A kind of coal unit and gas turbine combined power generation system |
| CN104599730A (en) * | 2014-12-25 | 2015-05-06 | 张敬敏 | Pressurized water reactor (PWR) nuclear power generation mechanism |
| CN105439233B (en) * | 2015-12-07 | 2018-01-16 | 集美大学 | The electricity-water cogeneration system and method for nuclear power station combination gas turbine |
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