CN203532174U - Saucer-type solar energy and gas-steam combined cycle power generation system - Google Patents

Saucer-type solar energy and gas-steam combined cycle power generation system Download PDF

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Publication number
CN203532174U
CN203532174U CN201320624184.XU CN201320624184U CN203532174U CN 203532174 U CN203532174 U CN 203532174U CN 201320624184 U CN201320624184 U CN 201320624184U CN 203532174 U CN203532174 U CN 203532174U
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China
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gas
vapor
generator
solar energy
type solar
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CN201320624184.XU
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Chinese (zh)
Inventor
高维
吴卫
高霞
潘海浪
王公林
王文波
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Sp Longyuan Power Technology & Engineering Co Ltd
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Sp Longyuan Power Technology & Engineering Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/46Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/14Combined heat and power generation [CHP]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/16Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/10Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/15On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply

Abstract

The utility model discloses a saucer-type solar energy and gas-steam combined cycle power generation system which comprises a saucer-type solar system and a gas-steam combined cycle power generation system. The saucer-type solar system comprises a saucer-type solar heat collection field and a central heat exchanger; the gas-steam combined cycle power generation system comprises a gas turbine generator unit, a waste heat boiler and a steam turbine generator unit. According to the saucer-type solar energy and gas-steam combined cycle power generation system, the high efficiency brought by saucer-type high parameters is thoroughly utilized, so that the overall efficiency of the system is improved, energy is saved, and environmental pollution is reduced.

Description

Disc type solar energy-gas combustion-gas vapor combined cycle system
Technical field
The utility model belongs to power field, particularly a kind of disc type solar energy-gas combustion-gas vapor combined cycle system.
Background technique
Solar energy thermal-power-generating is extensively paid attention to because of its energy-saving and environmental protection, but simple solar heat power generation system hampers its further commercialization process because of initial cost and the lower thermal performance of its great number always.The compound thermal power generation system that solar energy combines with fossil energy is utilized the large advantage of fossil fuel power of the assembling unit adjustment range, save regenerative system and steam turbine system expensive in independent light cogeneration power plant, thereby reach the dual purpose that reduces cost of electricity-generating, realizes continuous and stable electric generation.Solar heat power generation system be take hotwork as intermediate energy carrier simultaneously, relatively easily by heat and fossil fuel generation mode, is coupled.
Solar energy-gas steam combined cycle power generating system (Integrated Solar Combined Cycle, ISCC) comprise solar thermal collection system and combustion and steam combined cycle system, gas turbine generator group by gas compressor by air intake and compression after in firing chamber and fuel (using rock gas here) mixed combustion, the high temperature and high pressure gas producing enters acting in combustion gas turbine, drives generator generating.The high-temperature flue gas of discharging enters exhaust heat boiler heated feed water, and the high pressure superheated steam of generation enters the interior acting of steam turbine of vapor wheel generator set, again drives generator generating.When solar heat collector normally moves, heated feed water replaces a part of gas quantity or increases generated energy.
Current solar energy-gas steam combined cycle power generating system adopts groove type solar heat collection technology conventionally, optically focused is higher than not, generally only in 50 left and right, running temperature is generally no more than 400 ℃, produce steam quality lower, feedwater is heated to need to be sent to exhaust heat boiler after saturation temperature again and continues to be heated to superheated vapor.In addition also there is the problems such as pyrolysis, burn into low temperature solidify in groove type solar working medium conduction oil used.
Summary of the invention
Not enough for prior art, the purpose of this utility model is to provide a kind of disc type solar energy-gas combustion-gas vapor combined cycle system, this system utilization has disc type solar energy heat collection technology and the gas combustion-gas vapor combined cycle system intergration of high conversion efficiency high parameter, solve independent solar energy thermal-power-generating expensive, the problem such as conventional groove type solar association circulating power generation system thermal performance is not enough, efficiency is low.Improved entire system efficiency, energy saving, reduces pollutant emission, for the efficient utilization of solar energy provides new low cost to select.
To achieve these goals, the utility model has adopted following technological scheme:
Disc type solar energy-gas combustion-gas vapor combined cycle system, comprising: disc type solar energy system and combined cycle generation system of fuel gas-steam, and described disc type solar energy system comprises disc type solar energy heat collecting field and central heat exchanger; Described combined cycle generation system of fuel gas-steam comprises: gas turbine generator group, exhaust heat boiler and vapor wheel generator set; Wherein: described exhaust heat boiler, be provided with for receiving from the import of the high-temperature flue gas of described gas turbine generator group with for discharging the outlet of the low-temperature flue gas after release heat, utilize the heating of described high-temperature flue gas from the feedwater of described vapor wheel generator set to produce superheated vapor, the exhaust after also utilizing described high-temperature flue gas heating from described vapor wheel generator set acting is to produce reheated steam; Described gas turbine generator group, for by pressurized air and fuel combustion with generation high temperature and high pressure gas, and driving the generator of described gas turbine generator group to generate electricity by the acting of described high temperature and high pressure gas, the high-temperature flue gas of discharging after acting is delivered to the high-temperature flue gas import of described exhaust heat boiler; Described vapor wheel generator set, for receiving the superheated vapor from described exhaust heat boiler and described central heat exchanger, also for receiving the described reheated steam from described exhaust heat boiler, and drive the generator of described vapor wheel generator set to generate electricity by the acting of described superheated vapor and described reheated steam; Described disc type solar energy heat collecting field, for receiving solar radiant energy with heating work medium; Described central heat exchanger, for by the working medium heat exchange after the heating of the fractional saturation water from described exhaust heat boiler and described disc type solar energy heat collecting field, to produce superheated vapor.
In above-mentioned disc type solar energy-gas combustion-gas vapor combined cycle system, as a kind of preferred implementation, described vapor wheel generator set comprises: the second generator; High-pressure cylinder, receives the superheated vapor from described exhaust heat boiler and described central heat exchanger, and the high-pressure cylinder steam discharge of finishing after merit is sent in described exhaust heat boiler hot again; Mesolow closes cylinder, receives through the described exhaust heat boiler reheated steam after heat again, and drives described the second generator to generate electricity by acting; Condenser, receives described mesolow and closes the exhaust after cylinder acting and be cooled to water of condensation; And feed water pump, receive the water of condensation from condenser, and will after described condensed water isentropic Compression, deliver to described exhaust heat boiler.
In above-mentioned disc type solar energy-gas combustion-gas vapor combined cycle system, as a kind of preferred implementation, described exhaust heat boiler comprises: economizer, for being heated to be saturation water from described condenser the condensed water after described feed water pump compression; Drum, for receiving the saturation water from described economizer, the described saturation water from described economizer and the falling tube that enters described drum after saturation water in described drum mixes; Vaporizer, for the fractional saturation water from described falling tube is heated, the steam water interface after heating is sent back in described drum and by the steam-water separator being arranged in described drum and is carried out carbonated drink separation by drum asending pipe; Superheater, becomes superheated vapor for the saturated vapour that described steam-water separator is separated, and described superheated vapor is sent to the high-pressure cylinder of described vapor wheel generator set; And reheater, for receiving the exhaust after the acting of described high-pressure cylinder, and heat exhaust after described high-pressure cylinder acting to produce reheated steam and to be sent to described mesolow and to close cylinder by flowing in high-temperature flue gas outside described reheater; After producing superheated vapor from the fractional saturation water of described economizer after described central heat exchanger heat exchange, described superheated vapor is delivered to described high-pressure cylinder.
In above-mentioned disc type solar energy-gas combustion-gas vapor combined cycle system, as a kind of preferred implementation, described gas turbine generator group comprises: gas compressor, for sucking and pressurized air; Firing chamber, receives the pressurized air from described gas compressor, and makes described pressurized air and fuel combustion to produce high temperature and high pressure gas; The first generator; And gas turbine, receive the high temperature and high pressure gas from described firing chamber, and drive described the first generator to generate electricity by acting.
In above-mentioned disc type solar energy-gas combustion-gas vapor combined cycle system, as a kind of preferred implementation, described disc type solar energy heat collecting field is by a plurality of dish formula installation compositions arranged side by side, and each dish formula device comprises: dish formula condenser, comprises the reception panel that can converge low density solar radiant energy; Tracking control system, for making the reception panel of described butterfly condenser vertical with solar beam; And heat absorber, utilize the solar radiant energy collecting to heat inner working medium.
Than prior art, the utlity model has following beneficial effect:
One, the superheated vapor that disc type solar energy system produces is directly incorporated into main steam line to enter the high-pressure cylinder of vapor wheel generator set, has guaranteed the high-quality utilization of the energy;
Two, the dish formula sun-gas combustion-gas vapor combined cycle system is integrated by solar energy and regular circulation generator set, when solar energy is sufficient, adopt solar energy-gas Steam Combined Cycle operating mode, when solar energy is not enough, adopt conventional combustion and steam combined cycle pattern, improve efficiency of energy utilization, reduced the cost of electricity-generating of independent solar heat generating.
Three, the heat that the dish formula sun-gas combustion-gas vapor combined cycle system utilizes solar energy to produce replaces the heat that part of fuel produces, and can utilize efficiently solar energy, and fuel saving amount reduces environmental pollution, possesses good economic benefit and social benefit.
In a word, this system has been utilized disc type solar energy heat collection technology and the gas combustion-gas vapor combined cycle system intergration with high conversion efficiency high parameter, solved independent solar energy thermal-power-generating expensive, the problem such as conventional groove type solar association circulating power generation system thermal performance is not enough, efficiency is low.Improved entire system efficiency, energy saving, reduces pollutant emission.
Accompanying drawing explanation
Fig. 1 is the structural representation of disc type solar energy-gas combustion-gas vapor combined cycle system of providing of embodiment of the present utility model;
Wherein, in figure, symbol description is as follows:
1, disc type solar energy system, 11, disc type solar energy heat collecting field, 12, central heat exchanger;
2, exhaust heat boiler, 21, economizer, 22, vaporizer; 23, drum, 24, reheater, 25, superheater, 26, high-temperature flue gas import, 27, low-temperature flue gas outlet;
3, vapor wheel generator set, 31, high-pressure cylinder, 32, mesolow closes cylinder, 33, condenser, the 34, second generator, 35, feed water pump;
4, gas turbine generator group, 41, gas compressor, 42, firing chamber, 43, gas turbine, the 44, first generator;
5, steam-water separator.
Embodiment
For making the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model mode of execution is described in further detail.
Referring to Fig. 1, a kind of disc type solar energy-gas combustion-gas vapor combined cycle system, this disc type solar energy-gas combustion-gas vapor combined cycle system comprises: disc type solar energy system 1 and combined cycle generation system of fuel gas-steam, and disc type solar energy system 1 comprises disc type solar energy heat collecting field 11 and central heat exchanger 12; Combined cycle generation system of fuel gas-steam comprises: gas turbine generator group 4, exhaust heat boiler 2 and vapor wheel generator set 3.Exhaust heat boiler 2, be provided with for receiving from the import 26 of the high-temperature flue gas of gas turbine generator group 4 with for discharging the outlet 27 of the low-temperature flue gas after release heat, by high-temperature flue gas, heat from the feedwater of vapor wheel generator set 3 to produce superheated vapor, the exhaust after also utilizing described high-temperature flue gas heating from 3 actings of vapor wheel generator set is to produce reheated steam; Gas turbine generator group 4, for by pressurized air and fuel combustion with generation high temperature and high pressure gas, and driving the generator of gas turbine generator group 4 to generate electricity by the acting of described high temperature and high pressure gas, the high-temperature flue gas of discharging after acting is delivered to the high-temperature flue gas import 26 of exhaust heat boiler 2; ; Vapor wheel generator set 3, for receiving the superheated vapor from exhaust heat boiler 2 and central heat exchanger 12, also for receiving the reheated steam from exhaust heat boiler 2, and by the acting of superheated vapor and reheated steam, drive the generator of vapor wheel generator set 3 to generate electricity; Disc type solar energy heat collecting field 11, for receiving solar radiant energy with heating work medium; Described central heat exchanger 12, for by the working medium heat exchange after 11 heating of the fractional saturation water from exhaust heat boiler 2 and described disc type solar energy heat collecting field, to produce superheated vapor.In order further to improve the heat utilization rate of whole power generation system, exhaust heat boiler 2 has utilized the high-temperature flue gas exhaust of heat after from the 3 high-pressure cylinders actings of vapor wheel generator set again, and the reheated steam that the exhaust after the 3 high-pressure cylinders actings of vapor wheel generator set obtains after heat through exhaust heat boiler 2 is again sent back to vapor wheel generator set 3 mesolows and closes cylinder and continue the acting of expanding.Be specifically described below.
Disc type solar energy heat collecting field 11 is by a plurality of dish formula installation compositions that are set up in parallel, each dish formula device comprises: dish formula condenser, for solar radiant energy is converged, it is the basic optical unit of dish formula device, comprises the reception panel that can converge low density solar radiant energy; Tracking control system, for making the reception panel of described butterfly condenser vertical with solar beam, in practice, this tracking control system adopts double-axis tracking, can realize within the scope of 180 ° of 360 °, azimythal angle and elevation angles and in real time the sun being followed the tracks of, so that it is vertical with solar beam all the time to receive panel, increased the utilization of solar radiant energy, photo-thermal conversion efficiency can be up to 25%, owing to adopting two-dimensional tracking, the reception panel of condenser is all the time over against the sun, and optically focused ratio can reach 2000; And heat absorber, utilize the solar radiant energy collecting to heat inner working medium, internal work medium of the present utility model is air, this heat absorber is one of core component of dish formula device, is positioned at the focus place that parabolic shape optically focused receives panel (reflector).
Central heat exchanger 12 carries out heat exchange for the high temperature air that disc type solar energy heat collecting field 11 is produced with the fractional saturation water from exhaust heat boiler 2, and to produce superheated vapor, this superheated vapor is sent to vapor wheel generator set 3.
Gas turbine generator group 4 comprises: gas compressor 41, and for sucking and pressurized air; Firing chamber 42, receives the pressurized air from gas compressor 41, and makes pressurized air and fuel combustion to produce high temperature and high pressure gas; The first generator 44; And gas turbine 43, receive the high temperature and high pressure gas from firing chamber 42, and drive the first generator 44 generatings by acting.
Concrete can be described as, and gas compressor 41 is from ambient atmosphere environment air amount, and through overcompression, makes it supercharging, also corresponding raising of air temperature simultaneously; Pressurized air is pressed to firing chamber 42 and the combustion gas that sprays into fuel mix burning generation High Temperature High Pressure wherein; Then the gas of High Temperature High Pressure enters into gas turbine 43 expansion actings, and propelling gas turbine engine drives gas compressor 41 High Rotation Speed together with outer load rotor, and the chemical energy Partial Conversion of having realized fuel is mechanical work, and exports electric work.The weary gas (being high-temperature flue gas) of discharging from gas turbine 43 is delivered to exhaust heat boiler 2 imports 26.
Vapor wheel generator set 3, for receiving the superheated vapor from exhaust heat boiler 2 and central heat exchanger 12, also for receiving the reheated steam from exhaust heat boiler 2, and driving the generator of vapor wheel generator set 3 to generate electricity by the acting of superheated vapor and reheated steam, vapor wheel generator set 3 comprises: the second generator 34; High-pressure cylinder 31, receives the superheated vapor expansion acting from exhaust heat boiler 2 and central heat exchanger 12, and the high-pressure cylinder steam discharge of finishing after merit is sent in exhaust heat boiler 2 hot again; Mesolow closes cylinder 32, receives through exhaust heat boiler 2 reheated steam after heat again, and drives the second generator 34 to generate electricity by acting; Condenser 33, receives mesolow and closes the exhaust after cylinder 32 actings and be cooled to water of condensation; Feed water pump, receives the water of condensation from condenser 33, and will after described condensed water isentropic Compression, deliver to the economizer 21 of exhaust heat boiler 2.
Exhaust heat boiler 2, be provided with for receiving from the import 26 of the high-temperature flue gas of gas turbine generator group 4 with for discharging the outlet 27 of the low-temperature flue gas after release heat, by high-temperature flue gas, heat from the feedwater of vapor wheel generator set 3 to produce superheated vapor, the exhaust after also utilizing high-temperature flue gas heating from 3 actings of vapor wheel generator set is to produce reheated steam.Exhaust heat boiler 2 comprises: economizer 21, for being heated to be saturation water from described condenser the condensed water after described feed water pump 35 compressions; Drum 23, for receiving the saturation water from economizer 21, from the saturation water of described economizer 21 and the falling tube that enters drum 23 after saturation water in drum 23 mixes; Vaporizer 22, for the fractional saturation water from falling tube is heated, the steam water interface after heating is sent back in drum 23 and is carried out carbonated drink separation by the steam-water separator 5 being arranged in drum 23 by drum 23 asending pipes; Superheater 25, becomes superheated vapor for the saturated vapour that steam-water separator 5 is separated, and described superheated vapor is sent to the high-pressure cylinder 31 of vapor wheel generator set 3; And reheater 24, for receiving the exhaust after high-pressure cylinder 31 acting, and by flowing in exhaust after high-temperature flue gas heating high-pressure cylinder 31 actings outside reheater 24 to produce reheated steam and to be sent to described mesolow and to close cylinder; After producing superheated vapor from the fractional saturation water of described economizer after described central heat exchanger heat exchange, described superheated vapor is delivered to described high-pressure cylinder.
Concrete can be described as, exhaust heat boiler 2 imports 26 are communicated with the high-temperature flue gas outlet of gas turbine 43, and the high-temperature flue gas of discharging from gas turbine 43 becomes low-temperature flue gas successively and enters atmosphere from exporting 27 after superheater 25, reheater 24, vaporizer 22 and economizer 21 release heat.From the feedwater of vapor wheel generator set 3, through the economizer 21 of exhaust heat boiler 2, be warmed up to a little less than the saturation temperature under drum pressure and obtain saturation water, the in the situation that of sun abundance, this saturation moisture is two-part, a part enters central heat exchanger 12, a part enters drum 23, enter vaporizer 22 with the falling tube that enters drum 23 belows after saturation water in drum 23 mixes, vaporizer 22 becomes a part of water heating from drum 23 falling tubes into saturated vapour, by drum 23 asending pipes, send back in drum 23 and carry out carbonated drink separation by the steam-water separator 5 being arranged in drum 23 again.The saturated vapour of separating through steam-water separator is admitted to superheater 25, after superheater 25, becomes superheated vapor, then is sent to the 3 high-pressure cylinders 31 expansion actings of vapor wheel generator set.In this embodiment, exhaust heat boiler 2 not only can heat from the condensed water of vapor wheel generator set 3 and boiler feed water to produce superheated vapor by high-temperature flue gas, but also can utilize high-temperature flue gas hot from the exhaust after high-pressure cylinder 31 actings of vapor wheel generator set 3 again, the mesolow that the reheated steam that exhaust after high-pressure cylinder 31 acting obtains after heat through the reheater 24 of exhaust heat boiler 2 is again sent back to vapor wheel generator set 3 closes cylinder 32, and drives the second generator to generate electricity 34 by acting.Condenser 33 is delivered in the exhaust that mesolow closes after cylinder 32 actings, and through cooling formation water of condensation, described condensed water is sent to the economizer 21 of exhaust heat boiler 2 after feed water pump isentropic Compression.
The working principle of disc type solar energy-gas combustion-gas vapor combined cycle system of this embodiment is as follows: disc type solar energy-gas combustion-gas vapor combined cycle system is that disc type solar energy system and conventional association circulating power generation system is integrated.When solar energy is sufficient, according to solar energy-combined cycle mode, move, gas turbine generator group by gas compressor by air intake and compression after in firing chamber and fuel (rock gas etc.) mixed combustion, the high temperature and high pressure gas producing enters acting in gas turbine, drives the first generator generating or drives gas compressor work.The high-temperature flue gas of discharging is delivered to exhaust-heat boiler inlet through flue, flow through again superheater, vaporizer and economizer, finally by chimney, enter atmosphere, temperature of exhaust fume is generally 150~180 ℃, and flue-gas temperature drops to from high temperature the heat that temperature of exhaust fume discharges and is used for making water to become steam.First the feedwater of vapor wheel generator set enters economizer and is heated to saturation water, a part is sent to the central heat exchanger of disc type solar energy system, high temperature air heat exchange with the generation of disc type solar energy heat collecting field, saturation water from economizer is heated to superheated vapor, another part is sent to drum, after entering the water of drum and saturation water in drum mixing, along the falling tube of drum below, entering vaporizer absorbs heat and starts to steam, conventionally only some water becomes vapour, so what flow in vaporizer is steam water interface, steam water interface leaves vaporizer and enters top drum and carry out separation by the carbonated drink separation equipment being arranged in drum, water is fallen in drum water space and is entered falling tube and continue heat absorption and steam, and isolated saturated vapour enters superheater from drum top, after absorbing heat, saturated vapour becomes superheated vapor.From two-part superheated vapor of central heat exchanger and superheater, be mixed in the high-pressure cylinder of vapor wheel generator set and do work, from high-pressure cylinder steam discharge be out sent to exhaust heat boiler reheater again heat produce and to be sent to again mesolow reheated steam and to close cylinder acting, to drive the second generator generating, from mesolow, close cylinder exhaust out and deliver to condenser, through cooling formation water of condensation, condensed water is sent to economizer after feed water pump isentropic Compression again to carry out preheating and obtains saturation water.When sunlight deficiency or night, combustion gas-Steam Combined Cycle mode is routinely moved, saturation water after boiler economizer preheating is all sent to the vaporizer of exhaust heat boiler and superheater and is heated to superheated vapor and is sent to Turbo-generator Set again, to drive generator generating.This model utility improves efficiency of energy utilization greatly.Conventional disc type solar energy power station photoelectric efficiency is about 18%-25%, and conventional gas steam combined cycle for power generation Zhan Quan factory total efficiency is about 45%-50%, and the full factory of disc type solar energy-gas Combined circulating power plant total efficiency can reach 70%-80%.
These are only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims (5)

1. disc type solar energy-gas combustion-gas vapor combined cycle system, is characterized in that, comprising: disc type solar energy system and combined cycle generation system of fuel gas-steam, and described disc type solar energy system comprises disc type solar energy heat collecting field and central heat exchanger; Described combined cycle generation system of fuel gas-steam comprises: gas turbine generator group, exhaust heat boiler and vapor wheel generator set; Wherein:
Described exhaust heat boiler, be provided with for receiving from the import of the high-temperature flue gas of described gas turbine generator group with for discharging the outlet of the low-temperature flue gas after release heat, utilize the heating of described high-temperature flue gas from the feedwater of described vapor wheel generator set to produce superheated vapor, the exhaust after also utilizing described high-temperature flue gas heating from described vapor wheel generator set acting is to produce reheated steam;
Described gas turbine generator group, for by pressurized air and fuel combustion with generation high temperature and high pressure gas, and driving the generator of described gas turbine generator group to generate electricity by the acting of described high temperature and high pressure gas, the high-temperature flue gas of discharging after acting is delivered to the high-temperature flue gas import of described exhaust heat boiler;
Described vapor wheel generator set, for receiving the superheated vapor from described exhaust heat boiler and described central heat exchanger, also for receiving the described reheated steam from described exhaust heat boiler, and drive the generator of described vapor wheel generator set to generate electricity by the acting of described superheated vapor and described reheated steam;
Described disc type solar energy heat collecting field, for receiving solar radiant energy with heating work medium;
Described central heat exchanger, for by the working medium heat exchange after the heating of the fractional saturation water from described exhaust heat boiler and described disc type solar energy heat collecting field, to produce superheated vapor.
2. disc type solar energy-gas combustion-gas vapor combined cycle system according to claim 1, is characterized in that,
Described vapor wheel generator set comprises:
The second generator;
High-pressure cylinder, receives the superheated vapor expansion acting from described exhaust heat boiler and described central heat exchanger, and the high-pressure cylinder steam discharge of finishing after merit is sent in described exhaust heat boiler hot again;
Mesolow closes cylinder, receives through the described exhaust heat boiler reheated steam after heat again, and drives described the second generator to generate electricity by acting;
Condenser, receives described mesolow and closes the exhaust after cylinder acting and be cooled to water of condensation; And
Feed water pump, receives the water of condensation from condenser, and will after described water of condensation isentropic Compression, be sent to described exhaust heat boiler.
3. disc type solar energy-gas combustion-gas vapor combined cycle system according to claim 2, is characterized in that, described exhaust heat boiler comprises:
Economizer, for being heated to be saturation water from described condenser the condensed water after described feed water pump compression;
Drum, for receiving the saturation water from described economizer, the described saturation water from described economizer and the falling tube that enters described drum after saturation water in described drum mixes;
Vaporizer, for the fractional saturation water from described falling tube is heated, the steam water interface after heating is sent back in described drum and by the steam-water separator being arranged in described drum and is carried out carbonated drink separation by drum asending pipe;
Superheater, becomes superheated vapor for the saturated vapour that described steam-water separator is separated, and described superheated vapor is sent to the high-pressure cylinder of described vapor wheel generator set; And
Reheater, for receiving the exhaust after the acting of described high-pressure cylinder, and heats exhaust after described high-pressure cylinder acting to produce reheated steam and to be sent to described mesolow and to close cylinder by flowing in high-temperature flue gas outside described reheater;
After producing superheated vapor from the fractional saturation water of described economizer after described central heat exchanger heat exchange, described superheated vapor is delivered to described high-pressure cylinder.
4. according to the arbitrary described disc type solar energy-gas combustion-gas vapor combined cycle system of claim 1-3, it is characterized in that, described gas turbine generator group comprises:
Gas compressor, for sucking and pressurized air;
Firing chamber, receives the pressurized air from described gas compressor, and makes described pressurized air and fuel combustion to produce high temperature and high pressure gas;
The first generator; And
Gas turbine, receives the high temperature and high pressure gas from described firing chamber, and drives described the first generator to generate electricity by acting.
5. according to the arbitrary described disc type solar energy-gas combustion-gas vapor combined cycle system of claim 1-3, it is characterized in that, described disc type solar energy heat collecting field is by a plurality of dish formula installation compositions arranged side by side, and each dish formula device comprises:
Dish formula condenser, comprises the reception panel that can converge low density solar radiant energy;
Tracking control system, for making the reception panel of described dish formula condenser vertical with solar beam; And
Heat absorber, utilizes the solar radiant energy collecting to heat inner working medium.
CN201320624184.XU 2013-10-10 2013-10-10 Saucer-type solar energy and gas-steam combined cycle power generation system Withdrawn - After Issue CN203532174U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103470461A (en) * 2013-10-10 2013-12-25 国电龙源电力技术工程有限责任公司 Disc type solar-fuel gas and steam combined cycle power generation system
CN103912464A (en) * 2014-04-11 2014-07-09 武汉凯迪工程技术研究总院有限公司 Combined solar heat and BIGCC power generation system
CN105258094A (en) * 2015-11-13 2016-01-20 江苏绿叶锅炉有限公司 Fuel gas natural circulation waste heat boiler
RU2633979C1 (en) * 2016-11-16 2017-10-20 Акционерное общество "Энергетический институт им. Г.М. Кржижановского" Combined heat and electrogenerated unit
RU2643910C1 (en) * 2014-04-11 2018-02-06 Ухань Кайди Инджиниринг Текнолоджи Рисерч Инститьют Ко., Лтд. Optimized integrated system for hybrid energy generation based on solar energy and biomass energy
CN108843406A (en) * 2018-05-28 2018-11-20 华北电力大学 A kind of flue gas reheat formula dish-style photo-thermal and gas combustion-gas vapor combined cycle system

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CN103470461B (en) * 2013-10-10 2016-08-17 国电龙源电力技术工程有限责任公司 Disc type solar energy-gas combustion-gas vapor combined cycle system
CN103470461A (en) * 2013-10-10 2013-12-25 国电龙源电力技术工程有限责任公司 Disc type solar-fuel gas and steam combined cycle power generation system
JP2017520721A (en) * 2014-04-11 2017-07-27 武▲漢凱▼迪工程技▲術▼研究▲総▼院有限公司 Solar energy photothermal and BIGCC integrated combined power generation system
AU2015245828B2 (en) * 2014-04-11 2018-11-29 Wuhan Kaidi Engineering Technology Research Institute Co., Ltd. Solar thermal and BIGCC-integrated hybrid power generation system
WO2015154584A1 (en) * 2014-04-11 2015-10-15 武汉凯迪工程技术研究总院有限公司 Solar thermal and bigcc-integrated hybrid power generation system
CN103912464B (en) * 2014-04-11 2016-09-14 武汉凯迪工程技术研究总院有限公司 The combined generating system that solar energy optical-thermal is integrated with BIGCC
CN103912464A (en) * 2014-04-11 2014-07-09 武汉凯迪工程技术研究总院有限公司 Combined solar heat and BIGCC power generation system
RU2643910C1 (en) * 2014-04-11 2018-02-06 Ухань Кайди Инджиниринг Текнолоджи Рисерч Инститьют Ко., Лтд. Optimized integrated system for hybrid energy generation based on solar energy and biomass energy
RU2643905C1 (en) * 2014-04-11 2018-02-06 Ухань Кайди Инджиниринг Текнолоджи Рисерч Инститьют Ко., Лтд. Solar thermal and hybrid system of energy generation with biomass gasification with symbiotic gas-water steam fuel cycle
CN105258094A (en) * 2015-11-13 2016-01-20 江苏绿叶锅炉有限公司 Fuel gas natural circulation waste heat boiler
RU2633979C1 (en) * 2016-11-16 2017-10-20 Акционерное общество "Энергетический институт им. Г.М. Кржижановского" Combined heat and electrogenerated unit
CN108843406A (en) * 2018-05-28 2018-11-20 华北电力大学 A kind of flue gas reheat formula dish-style photo-thermal and gas combustion-gas vapor combined cycle system
CN108843406B (en) * 2018-05-28 2020-10-16 华北电力大学 Flue gas reheating type disc type photo-thermal and gas-steam combined cycle power generation system

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