CN106555674A - It is a kind of to be capable of achieving the high-efficiency closed gas power generation system that 100% carbon is reclaimed - Google Patents
It is a kind of to be capable of achieving the high-efficiency closed gas power generation system that 100% carbon is reclaimed Download PDFInfo
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- CN106555674A CN106555674A CN201510631359.3A CN201510631359A CN106555674A CN 106555674 A CN106555674 A CN 106555674A CN 201510631359 A CN201510631359 A CN 201510631359A CN 106555674 A CN106555674 A CN 106555674A
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Abstract
The invention belongs to fuel gas generation technical field, and in particular to a kind of to be capable of achieving the high-efficiency closed gas power generation system that 100% carbon is reclaimed.The gas power generation system of the present invention is mainly made up of oxygen generation system 1, fuel feed system 2, combustor 3, turbine 4, electromotor 5, high temperature regenerator 6, cryogenic regenerator 7, cooler 8, water separating and reclaiming device 9, main compressor 10, auxiliary compressor 11, carbon dioxide storage system 12.The present invention needs the low technical problem of the carbon separation and recovery system efficiency for solving existing fossil energy power plant, using the system of the present invention, the carbon that 100% is capable of achieving merely with itself flow process is reclaimed, carbon recovering effect is significantly better than the carbon recovery system that current fossil power plant adopts, and the efficiency of fuel gas generation can be improved more than 10%.In addition using the system of the present invention, without the need for additionally adding carbon recovery system or equipment, save the cost of investment of power plant.
Description
Technical field
The invention belongs to fuel gas generation technical field, and in particular to a kind of to be capable of achieving the high-efficiency closed gas power generation system that 100% carbon is reclaimed.
Background technology
In recent years, plant gas due to efficiency high, maneuverability, peak regulation demand can be met the features such as and obtain tremendous development in China.But plant gas adopt the Fossil fuel such as natural gas or oil, produce substantial amounts of carbon dioxide, suitable share is occupied in China's total carbon emission after burning.With increasingly highlighting for recent environmental problems, concern of the international community to China's carbon emission is increasing, and China is that this has also formulated the medium-term and long-term target for reducing carbon emission.The carbon dioxide produced using the thermal power power plant combustion of Fossil fuel is the main source of carbon emission, and the important means for controlling carbon emission is to recycle the carbon dioxide of power plant emission.
In prior art, it is that after combustion the waste gas of discharge is separated and recovered that the carbon of fossil energy power plant is reclaimed, and needs to arrange a set of extremely complex separation and recovery system, the cost of investment of power plant greatly improved, the economy of power plant is drastically reduced, it is difficult to promote.Meanwhile, even if service power plant is equipped with carbon separation and recovery system, also than relatively low, the carbon dioxide of suitable share still can be to airborne release, still can be to environment build-up of pressure for organic efficiency.
The content of the invention
The technical problem to be solved in the invention is：The carbon separation and recovery system efficiency of existing fossil energy power plant is low.
Technical scheme is as described below：
The present invention's is capable of achieving the high-efficiency closed gas power generation system that 100% carbon is reclaimed, including：Oxygen generation system, fuel feed system, combustor, turbine, electromotor, high temperature regenerator, cryogenic regenerator, cooler, water separating and reclaiming device, main compressor, auxiliary compressor and carbon dioxide storage system.Wherein, the entrance of oxygen generation system is connected with air, and the entrance of fuel feed system is connected with fuel storage tank, and the outlet of oxygen generation system, the outlet of fuel feed system are connected with the entrance of combustor.The outlet of combustor is connected with the entrance of turbine, and turbine is connected by axle with electromotor, drives electromotor rotary electrification.The outlet of turbine is connected with the high temperature side entrance of high temperature regenerator, and the high temperature side outlet of high temperature regenerator is connected with the high temperature side entrance of cryogenic regenerator.The high temperature side outlet of cryogenic regenerator is divided into two-way, is connected with the entrance of cooler all the way, and another road is directly connected with the entrance of auxiliary compressor.The outlet of cooler is separated from water the entrance of retracting device and is connected, and the outlet of water separating and reclaiming device is connected with the entrance of main compressor, and the outlet of main compressor is respectively connecting to the low temperature side entrance of carbon dioxide recovery accumulator tanks and cryogenic regenerator；The outlet of the low temperature side outlet of cryogenic regenerator and auxiliary compressor is commonly connected to the low temperature side entrance of high temperature regenerator, and the low temperature side outlet of high temperature regenerator is connected with the entrance of combustor, forms a closed cycle.
Preferably, the fuel is natural gas, oil gas, liquefied gas, coal gas, or other hydrocarbon fuels.
Preferably, the combustor running temperature is between 700-1300 DEG C, and between 30-100 DEG C, between 15-35MPa, minimum pressure is between 7-9MPa for system maximum pressure for 10 running temperature of main compressor.
Beneficial effects of the present invention are：
Using the system of the present invention, the carbon for being capable of achieving 100% merely with itself flow process is reclaimed, and carbon recovering effect is significantly better than the carbon recovery system that current fossil power plant adopts, and the efficiency of fuel gas generation can be improved more than 10%.In addition using the system of the present invention, without the need for additionally adding carbon recovery system or equipment, save the cost of investment of power plant.
Description of the drawings
Fig. 1 is the gas power generation system composition schematic diagram of the present invention；
Wherein, 1- oxygen generation systems, 2- fuel feed systems, 3- combustor, 4- turbines, 5- motors, 6- regenerators, 7- regenerators, 8- coolers, 9- water separating and reclaiming devices, the main compressors of 10-, 11- auxiliary compressors, 12- carbon dioxide storage systems.
Specific embodiment
With reference to the accompanying drawings and examples the high-efficiency closed gas power generation system for being capable of achieving the recovery of 100% carbon of the present invention is described in detail.
The gas power generation system of the present invention is as shown in figure 1, main be made up of oxygen generation system 1, fuel feed system 2, combustor 3, turbine 4, electromotor 5, high temperature regenerator 6, cryogenic regenerator 7, cooler 8, water separating and reclaiming device 9, main compressor 10, auxiliary compressor 11, carbon dioxide storage system 12.
The entrance of oxygen generation system 1 is connected with air, and the entrance of fuel feed system 2 is connected with fuel storage tank, and the outlet of oxygen generation system 1, the outlet of fuel feed system 2 are connected with the entrance of combustor 3.The outlet of combustor 3 is connected with the entrance of turbine 4, and turbine 4 is connected by axle with electromotor 5, drives electromotor rotary electrification.The outlet of turbine 4 is connected with the high temperature side entrance of high temperature regenerator 6, and the high temperature side outlet of high temperature regenerator 6 is connected with the high temperature side entrance of cryogenic regenerator 7.The high temperature side outlet of cryogenic regenerator 7 is divided into two-way, is connected with the entrance of cooler 8 all the way, and another road is directly connected with the entrance of auxiliary compressor 11.The outlet of cooler 8 is separated from water the entrance of retracting device 9 and is connected, the outlet of water separating and reclaiming device 9 is connected with the entrance of main compressor 10, and the outlet of main compressor 10 is respectively connecting to the low temperature side entrance of carbon dioxide recovery accumulator tanks 12 and cryogenic regenerator 7；The outlet of the low temperature side outlet of cryogenic regenerator 7 and auxiliary compressor 11 is commonly connected to the low temperature side entrance of high temperature regenerator 6, and the low temperature side outlet of high temperature regenerator 6 is connected with the entrance of combustor 3, forms the loop of a closure.
In combustor 3, the purity oxygen of the production of oxygen generation system 1 forms mixed gas with the working medium for looping back flowing in combustion chamber 3, the Fossil fuel that fuel feed system 2 sprays burns in mixed gas, and the newly-generated same working medium containing water vapour and the supercritical carbon dioxide of High Temperature High Pressure, working medium flows into turbine 4, and promote the impeller of turbine 4 to rotate, and drive electromotor 5 to generate electricity, the carbon dioxide in working medium after acting is still in supercriticality.The working medium flowed out from turbine 4 flows into the high temperature side of high temperature regenerator 6, preheat the cryogenic fluid from 6 low temperature side inflow of high temperature regenerator, the working medium flowed out from the high temperature side of high temperature regenerator 6 continues to flow into the high temperature side of cryogenic regenerator 7, the working medium part flowed out from 7 high temperature side of cryogenic regenerator flows into cooler 8, and another part flows into auxiliary compressor 11.The part working medium Jing cooling of cooler 8 is flowed into, working medium is changed into liquid, and the working medium of liquid continues to flow into water separating and reclaiming device 9, and the water in working medium is separated and recovered.The main component of the working medium Jing after water separating treatment is liquid carbon dioxide, flow of liquid carbon dioxide becomes owner of compressor 10, carbon dioxide storage system 12 is partially into Jing after main compressor 10 is pressurized to store, the carbon dioxide of another part liquid flows into the low temperature side of cryogenic regenerator 7, and absorbs the heat of 7 high temperature side of cryogenic regenerator and be changed into gaseous state.Flow into 11 working medium of auxiliary compressor it is boosted after mix with the gaseous carbon dioxide flowed out from 7 low temperature side of cryogenic regenerator, and continue to flow into the low temperature side of high temperature regenerator 6, be back to combustor 3, one closed cycle of formation Jing after exchanging heat again.
The present invention's is capable of achieving the high-efficiency closed gas power generation system that 100% carbon is reclaimed, and the combustion adjuvant of combustion of fossil fuel is purity oxygen, working medium of the carbon dioxide generated after burning as power circulation system.Carbon dioxide working medium is constantly in supercriticality in system.Fuel can be the hydrocarbon fuels such as natural gas, oil gas, liquefied gas, or coal gas.Water separating and reclaiming device 9 be located between cooler 8 and main compressor 10, beneficial to aqueous water from.After carbon dioxide recovery accumulator tanks 12 is located at main compressor 10, now carbon dioxide appears similar to the high density characteristic of liquid, reclaims beneficial to storage.3 running temperature of combustor can be between 700-1300 DEG C, and between 30-100 DEG C, between 15-35MPa, minimum pressure is between 7-9MPa for system maximum pressure for 10 running temperature of main compressor.
Claims (3)
1. it is a kind of to be capable of achieving the high-efficiency closed gas power generation system that 100% carbon is reclaimed, including：Oxygen generation system
(1), fuel feed system (2), combustor (3), turbine (4), electromotor (5), high temperature backheat
Device (6), cryogenic regenerator (7), cooler (8), water separating and reclaiming device (9), main compressor (10),
Auxiliary compressor (11) and carbon dioxide storage system (12)；
It is characterized in that：The entrance of oxygen generation system (1) is connected with air, fuel feed system (2)
Entrance be connected with fuel storage tank, the outlet of oxygen generation system (1), fuel feed system (2)
Outlet is connected with the entrance of combustor (3)；The entrance phase of the outlet of combustor (3) and turbine (4)
Connection, turbine (4) are connected by axle with electromotor (5), drive electromotor rotary electrification；Turbine (4)
Outlet be connected with the high temperature side entrance of high temperature regenerator (6), the high temperature side of high temperature regenerator (6)
Outlet is connected with the high temperature side entrance of cryogenic regenerator (7)；The high temperature side of cryogenic regenerator (7) goes out
Mouthful be divided into two-way, be connected with the entrance of cooler (8) all the way, another road directly with auxiliary compressor 11
Entrance be connected；The outlet of cooler (8) is separated from water the entrance of retracting device (9) and is connected,
The outlet of water separating and reclaiming device (9) is connected with the entrance of main compressor (10), main compressor (10)
Outlet be respectively connecting to the low temperature side entrance of carbon dioxide recovery accumulator tanks 12 and cryogenic regenerator (7)；
The low temperature side outlet of cryogenic regenerator (7) is commonly connected to high temperature regenerator with the outlet of auxiliary compressor 11
(6) low temperature side entrance, the low temperature side outlet of high temperature regenerator (6) and the entrance phase of combustor (3)
Connection, forms a closed cycle.
2. the high-efficiency closed gas power generation system that achievable 100% carbon as claimed in claim 1 is reclaimed,
It is characterized in that：The fuel is natural gas, oil gas, liquefied gas, coal gas, or other nytrons
Thing fuel.
3. the high-efficiency closed gas power generation system that achievable 100% carbon as claimed in claim 2 is reclaimed,
It is characterized in that：Combustor (3) running temperature between 700-1300 DEG C, the main compressor (10)
Between 30-100 DEG C, between 15-35MPa, minimum pressure exists system maximum pressure running temperature
Between 7-9MPa.
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| CN201510631359.3A CN106555674A (en) | 2015-09-29 | 2015-09-29 | It is a kind of to be capable of achieving the high-efficiency closed gas power generation system that 100% carbon is reclaimed |
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| CN201510631359.3A CN106555674A (en) | 2015-09-29 | 2015-09-29 | It is a kind of to be capable of achieving the high-efficiency closed gas power generation system that 100% carbon is reclaimed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586244A (en) * | 2021-07-06 | 2021-11-02 | 浙江大学 | Gas turbine system |
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| US6209307B1 (en) * | 1999-05-05 | 2001-04-03 | Fpl Energy, Inc. | Thermodynamic process for generating work using absorption and regeneration |
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| CN103442783A (en) * | 2011-03-22 | 2013-12-11 | 埃克森美孚上游研究公司 | Systems and methods for carbon dioxide capture in low emission turbine systems |
| US20140208749A1 (en) * | 2010-10-22 | 2014-07-31 | Kabushiki Kaisha Toshiba | Carbon dioxide recovery method and carbon-dioxide-recovery-type steam power generation system |
| CN205243651U (en) * | 2015-09-29 | 2016-05-18 | 中国核动力研究设计院 | Can realize high -efficient closed nature gas power generation system of 100% carbon recovery |
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2015
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Patent Citations (5)
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| US6209307B1 (en) * | 1999-05-05 | 2001-04-03 | Fpl Energy, Inc. | Thermodynamic process for generating work using absorption and regeneration |
| CN101668928A (en) * | 2006-07-31 | 2010-03-10 | 技术学校公司 | Method and apparatus for effective and low-emission operation of power stations, as well as for energy storage and energy conversion |
| US20140208749A1 (en) * | 2010-10-22 | 2014-07-31 | Kabushiki Kaisha Toshiba | Carbon dioxide recovery method and carbon-dioxide-recovery-type steam power generation system |
| CN103442783A (en) * | 2011-03-22 | 2013-12-11 | 埃克森美孚上游研究公司 | Systems and methods for carbon dioxide capture in low emission turbine systems |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586244A (en) * | 2021-07-06 | 2021-11-02 | 浙江大学 | Gas turbine system |
| CN113586244B (en) * | 2021-07-06 | 2022-06-24 | 浙江大学 | Gas turbine system |
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Application publication date: 20170405 |