CN101701550A - Gas turbine-alkali metal thermal to electric converter generating device - Google Patents
Gas turbine-alkali metal thermal to electric converter generating device Download PDFInfo
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- CN101701550A CN101701550A CN 200910073148 CN200910073148A CN101701550A CN 101701550 A CN101701550 A CN 101701550A CN 200910073148 CN200910073148 CN 200910073148 CN 200910073148 A CN200910073148 A CN 200910073148A CN 101701550 A CN101701550 A CN 101701550A
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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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
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Abstract
The invention provides a gas turbine-alkali metal thermal to electric converter (AMTEC) generating device, comprising a gas turbine system composed of a compressor, a combustor, a turbine and a generator, and an alkali metal thermal to electric converting system composed of a thermal exchanger and an AMTEC. The output ends of the generator and the AMTEC are connected with a converter. The tail gases of the turbine enter the thermal exchanger of the alkali metal thermal to electric converting system via ducts and control valves, and the thermal exchanger is provided with a first exhaust duct. The invention provides a new type of generating assembly, namely using the high temperature tail gases exhausted by the gas turbine to provide working temperature guarantee for the AMTEC. Both the gas turbine and the AMTEC generate electricity together, thus improving the whole efficiency of the system.
Description
(1) technical field
What the present invention relates to is a kind of generating set assembly system, and the combined generating system of specifically a kind of " gas turbine-alkali metal thermo-electric direct converter " is used for power energy field.
(2) background technique
Gas turbine installation be a kind of be the rotary heat engine of working medium with air and combustion gas.Advantages such as gas turbine has the efficient height, power is big, volume is little, less investment, operating cost is low and Life cycle is long.Be mainly used in generating, traffic and industrial power.The form that present gas turbine is used to generate electricity mainly contains simple cycle generating, preposition circulating thermoelectric coproduction or generating, combined cycle generation or cogeneration of heat and power, integration circulation, nuclear combustion combined cycle, fires machine auxiliary circulation, the flue gas combined circulation of combustion gas, gas-fired heat pump combined cycle etc.
It is fuel cell that nearest U.S. Department of Energy proposes a kind of novel combined cycle---combustion turbine combined circulation.This circulation is with the generating that combines of fuel cell and combustion gas turbine.This equipment can more effectively produce electric power and significantly reduce environmental pollution.Its generating efficiency reaches 55%, is higher than 35% generating efficiency of coal powerplant far away, also is higher than the generating efficiency of combustion gas turbine 50%.
Alkali metal thermo-electric direct converter (AMTEC) is a kind of with the energy conversion technique of alkali metal (potassium, sodium) as working medium.It is with stupalith β, and " Al2O3 is the ion selectivity permeable membrane.The thermal power transfer that AMTEC can directly produce solar energy, external-burning, radioisotope, reactor thermal source and waste heat becomes electric energy.Alkali metal working medium (liquid state or gaseous state) is moved in closed cycle system, and its transfer process characteristics are isothermal expansion/compression, and therefore isobaric heating can obtain high efficiency.AMTEC has the characteristics of clean noiseless, compact equipment, little, the suitable dispersed placement of maintenance in addition.Unlike fuel cell, harsh requirement is arranged simultaneously, thereby wide application prospect is arranged for environment.But alkali metal thermo-electric direct converter needs certain temperature and guarantees when work.
(3) summary of the invention
The object of the present invention is to provide a kind of gas turbine and power generation device of alkali metal thermoelectric direct converter that can improve the total efficiency of Conversion of energy.
The object of the present invention is achieved like this:
It comprises the gas turbine engine systems of being made up of gas compressor, firing chamber, turbine and generator, also comprises the direct converting system of the alkali metal thermo-electric of being made up of heat exchanger and alkali metal thermo-electric direct converter; The output of generator and alkali metal thermo-electric direct converter is connected transducer, and the tail gas of turbine enters the heat exchanger of the direct converting system of alkali metal thermo-electric by pipeline and control valve, and heat exchanger has the downtake pipe road.
The present invention can also comprise:
1, the control valve on the pipeline between the heat exchanger of turbine and the direct converting system of alkali metal thermo-electric comprises first control valve and second control valve, the tail gas of turbine enters first control valve, first control valve has two-way output, one tunnel to import gas preheater through the second control valve input heat exchanger, another road by pipeline, and the output of gas compressor is imported behind gas preheater and connected the firing chamber.
2, second control valve is provided with the second exhaust pipe road.
3, the 3rd exhaust duct is set on the gas preheater.
It is gas turbine that the present invention proposes a kind of novel combination---the straight receiving and conversion equipment combination of alkali metal thermo-electric.A lot of at present experts and scholars concentrate on energy and how to improve on gas turbine self efficient, or how to improve traditional power generating equipments such as gas turbine and steamer and unite on the efficient of use, along with development of science and technology, the straight receiving and conversion equipment technology of alkali metal thermo-electric has had development faster in China now.Shanghai silicate research institute and Harbin Engineering University are carrying out correlation test.Therefore the present invention can realize technically.
The required heat energy of the straight receiving and conversion equipment generating of alkali metal thermo-electric all comes from the high-grade heat energy of gas turbine high temperature exhaust in the system of the present invention.In conventional gas turbine, these high-grade heat energy can be used to the air at preheated burning chamber inlet place, but these high-grade heat energy can not be utilized fully.Therefore native system has been introduced alkali metal thermo-electric direct converter, and the control by pipeline and valve is communicated to alkali metal thermo-electric direct converter with part high-grade heat energy through heat exchanger and generates electricity.Because the straight receiving and conversion equipment of alkali metal thermo-electric is the high product heat energy of part of the gas turbine high temperature exhaust of utilization, therefore can not influence the efficient of existing gas turbine generating system.Therefore the system efficient of system of the present invention is the efficient of exogenously added alkali metal thermoelectric transducer on the basis of existing gas turbine generating system efficient.According to the practical efficiency of present alkali metal thermo-electric converter application, the gas turbine generating system that the bright system effectiveness of this law is more single is compared, and conservative estimation can improve 10%.
The scheme of being mentioned below the present invention is just reformed gas only wheel machine power generating system in addition, and alkali metal thermo-electric direct converter has been installed.This thought also can be used for other forms of gas turbine generating system, as simple cycle generating, preposition circulating thermoelectric coproduction or generating, combined cycle generation or cogeneration of heat and power, integration circulation, nuclear combustion combined cycle, combustion machine auxiliary circulation, the flue gas combined circulation of combustion gas, gas-fired heat pump combined cycle.
Alkali metal thermo-electric direct converter in the system of the present invention is converted into electric energy with the high-grade heat energy of gas turbine high temperature exhaust, improves the total efficiency of Conversion of energy.
The present invention proposes a kind of generating combination of new model.Promptly use the high-temperature tail gas that gas turbine is discharged to guarantee for alkali metal thermo-electric direct converter provides operating temperature.Both co-generation of power will improve the efficient of entire system like this.
(4) description of drawings
Accompanying drawing is a linkage structure schematic representation of the present invention.
(5) embodiment
For example the present invention is done description in more detail below in conjunction with accompanying drawing:
The composition of gas turbine-alkali metal thermo-electric direct converter power generation system comprises the gas turbine engine systems a that is made up of gas compressor 1, firing chamber 2, turbine 3 and generator 4, it also comprises the direct converting system b of alkali metal thermo-electric that is made up of heat exchanger 6 and alkali metal thermo-electric direct converter 7, the output of generator and alkali metal thermo-electric direct converter is connected transducer 5, the tail gas of turbine enters the heat exchanger of the direct converting system of alkali metal thermo-electric by pipeline and control valve, and heat exchanger has downtake pipe road 20.
Control valve on the pipeline between the heat exchanger of turbine and the direct converting system of alkali metal thermo-electric comprises first control valve 31 and second control valve 32, the tail gas of turbine enters first control valve, first control valve has two-way output, one tunnel to import gas preheater 8 through the second control valve input heat exchanger, another road by pipeline, and the output of gas compressor is imported behind gas preheater and connected the firing chamber.Second control valve is provided with second exhaust pipe road 21.The 3rd exhaust duct 23 is set on the gas preheater.
When this system has just started, start gas turbine engine systems earlier.At this moment first, second control valve Close All, gas turbine engine systems drives generator for electricity generation, behind its working stability, opens first, second control valve.Make tail gas enter the alkali metal thermo-electric direct converter system with high temperature.The alkali metal thermo-electric direct converter system comprises two-part, i.e. heat exchanger 6 and alkali metal thermo-electric direct converter (AMTEC) 7.
With heat transferred alkali metal thermo-electric direct converter 7, alkali metal thermo-electric direct converter is obtaining carrying out the work generating under the required operating temperature to the tail gas of high temperature by heat exchanger 6.The tail gas of this path is discharged by gas exhaust piping 20 at last.The gas of this discharge can be done heat supply and use
The electricity that is sent by generator 4 and alkali metal thermo-electric direct converter 7 enters electrical network through transducer 5.
All stable at gas turbine engine systems and alkali metal thermo-electric direct converter system works, and tail gas has under certain remaining condition, by regulating first control valve, unnecessary tail gas is heated for the pressurized air that enters the firing chamber by gas preheater 8, and then improve the efficient of gas turbine engine systems self.The residual gas of this path is discharged by gas exhaust piping 23 at last, and the gas of this discharge can be done heat supply and use.
When the alkali metal thermo-electric direct converter system breaks down, for the efficient of safeguards system integral body, can tail gas be discharged by gas exhaust piping 21 equally by regulating second control valve 32, from then on the gas of Pai Chuing can be used for heat supply; Or by closing second control valve 32, and regulate the preheating that first control valve 31 is used for tail gas combustion gas.These two kinds of methods all are feasible.
Claims (4)
1. gas turbine and power generation device of alkali metal thermoelectric direct converter, it comprises the gas turbine engine systems of being made up of gas compressor, firing chamber, turbine and generator, it is characterized in that: also comprise the direct converting system of the alkali metal thermo-electric of being made up of heat exchanger and alkali metal thermo-electric direct converter; The output of generator and alkali metal thermo-electric direct converter is connected transducer, and the tail gas of turbine enters the heat exchanger of the direct converting system of alkali metal thermo-electric by pipeline and control valve, and heat exchanger has the downtake pipe road.
2. gas turbine according to claim 1 and power generation device of alkali metal thermoelectric direct converter, it is characterized in that: the control valve on the pipeline between the heat exchanger of turbine and the direct converting system of alkali metal thermo-electric comprises first control valve and second control valve, the tail gas of turbine enters first control valve, first control valve has two-way output, one tunnel to import gas preheater through the second control valve input heat exchanger, another road by pipeline, and the output of gas compressor is imported behind gas preheater and connected the firing chamber.
3. gas turbine according to claim 2 and power generation device of alkali metal thermoelectric direct converter is characterized in that: second control valve is provided with the second exhaust pipe road.
4. according to claim 2 or 3 described gas turbine and power generation device of alkali metal thermoelectric direct converter, it is characterized in that: the 3rd exhaust duct is set on the gas preheater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910073148 CN101701550B (en) | 2009-11-09 | 2009-11-09 | Gas turbine-alkali metal thermal to electric converter generating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910073148 CN101701550B (en) | 2009-11-09 | 2009-11-09 | Gas turbine-alkali metal thermal to electric converter generating device |
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| CN101701550A true CN101701550A (en) | 2010-05-05 |
| CN101701550B CN101701550B (en) | 2012-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910073148 Expired - Fee Related CN101701550B (en) | 2009-11-09 | 2009-11-09 | Gas turbine-alkali metal thermal to electric converter generating device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105656102A (en) * | 2014-11-20 | 2016-06-08 | 天津新能众联科技有限公司 | New-energy charging station with complementation of wind energy, air energy, and solar energy |
| CN112727603A (en) * | 2020-12-09 | 2021-04-30 | 华电电力科学研究院有限公司 | Combined power generation method applied to land desert simple cycle gas turbine power generation and thermoelectric power generation |
| CN113148093A (en) * | 2021-04-22 | 2021-07-23 | 哈尔滨工程大学 | Power distribution method of parallel ship hybrid power system |
-
2009
- 2009-11-09 CN CN 200910073148 patent/CN101701550B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105656102A (en) * | 2014-11-20 | 2016-06-08 | 天津新能众联科技有限公司 | New-energy charging station with complementation of wind energy, air energy, and solar energy |
| CN112727603A (en) * | 2020-12-09 | 2021-04-30 | 华电电力科学研究院有限公司 | Combined power generation method applied to land desert simple cycle gas turbine power generation and thermoelectric power generation |
| CN113148093A (en) * | 2021-04-22 | 2021-07-23 | 哈尔滨工程大学 | Power distribution method of parallel ship hybrid power system |
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| CN101701550B (en) | 2012-02-01 |
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