CN103644087A - Solar thermal power generation device with after-burning function - Google Patents
Solar thermal power generation device with after-burning function Download PDFInfo
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- CN103644087A CN103644087A CN201310698098.8A CN201310698098A CN103644087A CN 103644087 A CN103644087 A CN 103644087A CN 201310698098 A CN201310698098 A CN 201310698098A CN 103644087 A CN103644087 A CN 103644087A
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
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Abstract
The invention provides a solar thermal power generation device with an after-burning function and a production method thereof, belongs to a solar thermal power generation technology in the field of new energy or renewable energy, and aims to solve the problem that a heat accumulation device is too expensive or the problem about seamless joint in a control process of combined operation of a solar energy and conventional energy in the present solar thermal power generation technology. The device mainly comprises an air compressor, a gas turbine generator, a solar thermal collector, an after-burning device, a compressed air bypass valve, a waste heat boiler, a steam turbine power generator and a condenser. An expensive heat accumulation and heat exchange devices is avoided, compressed air from the air compressor is heated by the solar thermal collector firstly, high-temperature compressed air is generated and subjected to after-burning and heating to a rated temperature by the after-burning device added with fuel, the temperature of an outlet medium is controlled by the fuel quantity, the solar thermal collector is combined perfectly with a gas engine unit, a problem of instability of solar energy heating and a control problem of seamless joint with a routine gas-steam combined cycle generator set are solved.
Description
Technical field
The invention belongs to the solar energy thermal-power-generating technology in new energy or renewable energy source domain, can be under the condition that heat-storing device is not set the electric energy of round-the-clock steady outputting high quality, improve the generating thermal efficiency, reduce cost, strengthen Economy.
Background technique
Solar light-heat power-generation technology is because of round-the-clock running, the quality of power supply and stability needs at present, generally all configure heat-storing device, by solar heat collector heating heat-storage medium (conduction oil or fused salt), heated heat-storage medium leaves in heat storage can, by heat exchanger, heat is reached to working-medium water again, produce superheated vapor and promote steam turbine generator acting generating.The subject matter of prior art is: the thermal efficiency that causes generating electricity because main steam condition is too low is on the low side, heat accumulation and heat-exchange device in system, have been increased, greatly increase complexity and the equipment investment of system, and due to the existence of heat transfer temperature difference, further reduced the generating thermal efficiency.
Above background technique can be with reference to books and documents such as modern photothermal power generation technology.
Summary of the invention
When taking a step forward, improve solar energy thermal-power-generating efficiency, round-the-clock quality of power supply stability and Economy and need to solve the problem that heat-storing device cost is too expensive, or will solve the problem of solar energy and conventional energy resource cooperation control procedure slitless connection.
The invention describes solar-powered thermal generating set and production method thereof with afterburning.This device is mainly comprised of gas compressor, gas turbine generator, solar thermal collector, afterburner, pressurized air by-pass valve, exhaust heat boiler, vapor wheel generator and condenser.First pressurized air from gas compressor heat through solar thermal collector, produces high temperature compressed air, then add fuel to do further afterburning heating through afterburner, by the fuel quantity that adds afterburner, controls its outlet medium temperature.Like this with regard to solved solar energy heating unstable problem and with the problem of conventional Gas-steam Combined Cycle generator set control process slitless connection.The high-temperature fuel gas with rated temperature is transported to gas turbine generator acting generating, and the high-temperature exhaust air expanding after acting enters the feedwater of exhaust heat boiler heating boiler, after flue gas and each heating surface heat exchange, by chimney, is discharged.The superheated vapor devaporation turbine generator acting generating that exhaust heat boiler produces, the exhaust steam of discharging after expanding enters the condenser recovery of condensing.Finally complete with the pre-warmed Gas-steam Combined Cycle of solar energy.
Gas compressor can be coaxial with gas turbine generator, by gas turbine generator, provides power, also can separate independent setting, separately joins power, by other prime mover (such as motor) as driving arrangement.Obviously, gas compressor divides to be arranged and offers convenience to system layout, gas compressor can be arranged in to the place, medium inlet of solar thermal collector, and afterburning chamber and gas turbine generator are arranged in to the media outlet place of solar thermal collector, thereby shorten the length of compressed air line, reduce flow resistance and cost.
When the outlet medium of solar thermal collector does not reach setting temperature (when adverse weather or night), existence due to compressed air line flow resistance, too low heating-up temperature is not enough to make up the compressed-air actuated pressure loss, thereby solar thermal collector should be bypassed, at this moment just allow pressurized air by-pass valve open, make directly in afterburner, to obtain rated temperature nearby from the pressurized air of gas compressor.
It is necessary that hot medium pipeline and equipment adopt good insulation.
Accompanying drawing explanation
Accompanying drawing is the theory of constitution figure with the solar-powered thermal generating set of afterburning.---gas compressor, 2---gas turbine generator, 3---solar thermal collector, 4---afterburner, 5---pressurized air by-pass valve, 6---exhaust heat boiler, 7---vapor wheel generator, 8---condenser, AR---air, CA---pressurized air, HCA---high temperature compressed air, HG---high-temperature fuel gas, HEG---high-temperature exhaust air, FL---fuel, FW---boiler feed water, HS---superheated vapor, MS---intermediate extraction in figure: 1.
Embodiment
Gas-steam Combined Cycle generation technology is very ripe at present, and gas turbine used has two kinds of forms substantially: centralized firing chamber gas turbine and distributed combustor gas turbine, have respectively Siemens technique and GE technology as Typical Representative.Device of the present invention can improve and form having on the gas turbine basis of centralized firing chamber.Between gas compressor (1) and gas-turbine combustion chamber, increasing solar thermal collector (3), can be any form in slot type, dish formula, tower or Fresnel, generally pressurized air (CA) can be heated to 550 ℃.Former gas-turbine combustion chamber becomes afterburner (4), and can follow according to outlet medium temperature fuel (FL) adding quantity is carried out to precision control.Fuel (FL) can adopt rock gas or fuel oil.Separately outlet pressurized air (CA) pipeline of gas compressor (1) is communicated with to installing pressurized air by-pass valve (5) with entrance high temperature compressed air (HCA) pipeline of afterburner (4).Its rated temperature of high-temperature fuel gas (HG) from afterburner (4) can reach 1000 ℃ of left and right, enters gas turbine generator (2) acting generating.Its temperature of high-temperature exhaust air (HEG) expanding after acting still reaches 520-600 ℃, enters exhaust heat boiler (6) heating boiler feedwater (FW), after flue gas and each heating surface heat exchange, by chimney, is discharged.Its temperature of superheated vapor (HS) that exhaust heat boiler (6) produces can reach 500-550 ℃, devaporation turbine generator (7) acting generating, and the exhaust steam of discharging after expanding enters condenser (8) recovery of condensing.Steam turbine cylinder is provided with rotary diaphragm valve, and in order to obtain intermediate extraction (MS), that realizes cogeneration of heat and power and meet deoxygenation heating and water supply system uses vapour requirement.Gas turbine generator (2), exhaust heat boiler (6), vapor wheel generator (7) and condenser (8) adopt prior art.
Obviously be easier in this way form the solar-powered thermal generating set with afterburning.
Claims (3)
- With the solar-powered thermal generating set of afterburning mainly by gas compressor (1), gas turbine generator (2), solar thermal collector (3), afterburner (4), pressurized air by-pass valve (5), exhaust heat boiler (6), vapor wheel generator (7) and condenser (8) form, it is characterized in that: the pressurized air (CA) from gas compressor (1) first heats through solar thermal collector (3), produce high temperature compressed air (HCA), through afterburner (4), add fuel (FL) to do further afterburning heating again, by adding the fuel quantity of afterburner (4), control outlet medium temperature, the high-temperature fuel gas (HG) with rated temperature is transported to gas turbine generator (2) acting generating, the high-temperature exhaust air (HEG) expanding after acting enters exhaust heat boiler (6) heating boiler feedwater (FW), after flue gas and each heating surface heat exchange, by chimney, discharged, superheated vapor (HS) devaporation turbine generator (7) the acting generating that exhaust heat boiler produces, the exhaust steam of discharging after expanding enters condenser (8) recovery of condensing, complete with the pre-warmed Gas-steam Combined Cycle of solar energy.
- 2. the solar-powered thermal generating set with afterburning according to claim 1, it is characterized in that gas compressor (1) can be coaxial with gas turbine generator (2), by gas turbine generator (2), provide power, also can separate independent setting, separately join power.
- 3. the solar-powered thermal generating set with afterburning according to claim 1, it is characterized in that when the outlet medium of solar thermal collector (3) does not reach setting temperature, pressurized air by-pass valve (5) is unlocked, and makes directly in afterburner (4), to obtain rated temperature from the pressurized air (CA) of gas compressor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310698098.8A CN103644087A (en) | 2013-12-17 | 2013-12-17 | Solar thermal power generation device with after-burning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310698098.8A CN103644087A (en) | 2013-12-17 | 2013-12-17 | Solar thermal power generation device with after-burning function |
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| Publication Number | Publication Date |
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| CN103644087A true CN103644087A (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310698098.8A Pending CN103644087A (en) | 2013-12-17 | 2013-12-17 | Solar thermal power generation device with after-burning function |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925177A (en) * | 2014-03-25 | 2014-07-16 | 戚荣生 | Solar steam electric power generating system |
| CN104912607A (en) * | 2015-06-10 | 2015-09-16 | 中国华电工程(集团)有限公司 | Tower type solar optothermal and gas hybrid generation system |
| CN105114266A (en) * | 2015-06-10 | 2015-12-02 | 钟世友 | Power apparatus using heat pump technology |
| CN108301927A (en) * | 2016-08-12 | 2018-07-20 | 浙江大学 | Solar energy high-temperature heat collection heat accumulation gas turbine generating set |
-
2013
- 2013-12-17 CN CN201310698098.8A patent/CN103644087A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925177A (en) * | 2014-03-25 | 2014-07-16 | 戚荣生 | Solar steam electric power generating system |
| CN103925177B (en) * | 2014-03-25 | 2016-08-17 | 戚荣生 | Solar steam electricity generation system |
| CN104912607A (en) * | 2015-06-10 | 2015-09-16 | 中国华电工程(集团)有限公司 | Tower type solar optothermal and gas hybrid generation system |
| CN105114266A (en) * | 2015-06-10 | 2015-12-02 | 钟世友 | Power apparatus using heat pump technology |
| CN105114266B (en) * | 2015-06-10 | 2020-08-28 | 钟世友 | Power device using heat pump technology |
| CN108301927A (en) * | 2016-08-12 | 2018-07-20 | 浙江大学 | Solar energy high-temperature heat collection heat accumulation gas turbine generating set |
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Application publication date: 20140319 |