CN1402261A - Integrative high-temp. gas-cooled reactor united circulation power generating system - Google Patents
Integrative high-temp. gas-cooled reactor united circulation power generating system Download PDFInfo
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- CN1402261A CN1402261A CN02131331A CN02131331A CN1402261A CN 1402261 A CN1402261 A CN 1402261A CN 02131331 A CN02131331 A CN 02131331A CN 02131331 A CN02131331 A CN 02131331A CN 1402261 A CN1402261 A CN 1402261A
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- pressure compressor
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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
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
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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
- Y02E30/00—Energy generation of nuclear origin
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Abstract
An air-cooled high-temp stack combined cyclic electric generation system is characterized by that all the parts except stack core in a loop and the electric generator set are enclosed in an energy-converting pressure casing in single-axle vertical arranging manner. Its advantages are compact structure, easy installation and maintenance, and high safety.
Description
Technical field
The present invention relates to the nuclear reactor association circulating power generation system, particularly a kind of structural design of high temperature gas cooled reactor association circulating power generation system belongs to the nuclear energy power generation technical field.
Background technology
High temperature gas cooled reactor is because the extremely whole world nuclear energy circle concern of its inherent safety and better economic.At present, each state all in the researching high-temperature gas-cooled reactor in the nuclear power Application for Field, as the GT-MHR of the U.S.; The PBMR in South Africa; The high temperature gas-cooled test reactor HTTR of Japan and the 10MW high temperature gas cooled reactor HTR-10 of nuclear energy technology design and research institute of China Tsing-Hua University.
One of distinguishing feature of high temperature gas cooled reactor is that high temperature heat source can be provided, and can increase substantially the potentiality of nuclear energy power generation.About 400 ℃-550 ℃ of the temperature range of vapor recycle can't make full use of the high temperature advantage of high temperature gas cooled reactor.And the gas turbine technology be the gas industry field in nearly technology that grew up and reached its maturity in 20 years, its intake air temperature is up to 1500 ℃, efficient also is higher than vapor recycle, can satisfy high temperature gas cooled reactor fully and reach in the future development need at present.
In the high temperature gas cooled reactor gas turbine circulation system, gas turbine tail gas still has higher temperature (＞500 ℃), and therefore, the key that improves generating efficiency is effectively to utilize the energy of gas turbine tail gas.Nuclear energy circle is generally interested now is that regenerator is installed, it is the circulation of gas turbine backheat, the schemes such as PBMR in the GT-MHR of the U.S., South Africa for example, with reference to " D.R.Nicholls.Status of the Pebble Bed Modular Reactor; Proceedings of IAEA Technical Meeting [C] .Beijing; China:2～4,1998. ".
Document " H.Barnert; K.Kugeler.HTR Plus Modern Turbine Technology For HigherEfficiencies; IAEA-TECDOC-899; Proceedings of a Technical Committee meeting held inBeijing; China[C]; 30 October to, 2 November, 1995. " new ideas of MHTR gas vapor turbine combined cycle generation have been proposed; its main thought is to adopt the waste heat of waste heat boiler and vapor recycle recovery gas turbine high-temperature tail gas; and utilize a small-sized regenerator to keep suitable core inlet temperature, shown in Fig. 1-high temperature nuclear reactor combined cycle synoptic diagram.Helium is through taking the reactor core energy out of behind the reactor core 14, the acting of expanding at gas turbine 10 places, and gas turbine drives that high pressure calms the anger 12, low-pressure compressor 13 rotations also drive generator 7 generatings simultaneously.The helium that expands after doing work still has higher temperature, by waste heat boiler 9 heat is passed to the steam side and produces superheated vapor.The tail gas of waste heat boiler 9 is used for the core inlet helium of heating high-pressure side by the low-pressure side of regenerator 3, reduces to low temperature by precooler 1 then.The low-temp low-pressure helium boosts after passing through the unit (comprising low-pressure compressor 13, middle ware cooler 2 and high-pressure compressor 12) of calming the anger, and enters regenerator 3 high-pressure sides then and heats up, and enters reactor core 14 recycle at last.Because combined cycle is made up of the helium Bradenton circulation of high-temperature region and the steam Rankine cycle of low-temperature space: Bradenton round-robin thermal source is directly provided by high temperature nuclear reactor, the thermal source of Rankine cycle is provided by the gas turbine tail gas in the Bradenton circulation, generated energy then is two circulating generation amount sums, so the high temperature gas cooled reactor combined cycle has higher generating efficiency.As calculated, the high temperature gas cooled reactor combined cycle is under existence conditions, and when core exit temperature was 900 ℃, cycle efficieny can reach 47%, and along with material science and development of technologies, the high temperature gas cooled reactor combined cycle efficiency is expected to further raising.But also have advantages such as flow is little, a circuit element size is little, core inlet temperature is low, vapor recycle technology maturation, good development potentiality.
Research to the high temperature gas cooled reactor combined cycle both at home and abroad still is in the starting stage, and the quantitative test of qualitative analysis and minority is only arranged, and rests on the level that preamble is discussed, not the system schema that really can realize the high temperature gas cooled reactor combined cycle generation.
At present, the electricity generation system of the combined cycle that adopts in the combined cycle of high temperature gas cooled reactor and the existing conventional power plant in the prior art is roughly the same, different just reactor cores replace the firing chamber, a loop works medium is helium rather than combustion gas.The primary structure characteristics of the combined cycle that adopts in the conventional power plant are: horizontal type structure, floor area are big, no pressure vessel is as the pressure boundary.But because high temperature nuclear reactor one loop power converting system need be installed in one independently in the pressure vessel, so the existing conventional combined cycle system can't satisfy the needs of high temperature gas cooled reactor combined cycle.
Summary of the invention
Situation at prior art, the purpose of this invention is to provide a kind of high temperature gas cooled reactor combined cycle generation integral system, make it not only have compact conformation, rationally distributed, I﹠M is characteristics easily, and can satisfy the requirement of high temperature gas-cooled stack modularization, miniaturization and security.
Above-mentioned purpose is achieved by the following technical solution: a kind of high temperature gas cooled reactor combined cycle generation integral system, this system mainly comprises by reactor core, gas turbine, waste heat boiler, regenerator, high-pressure compressor, low-pressure compressor, intercooler, a loop and genset that precooler and connecting tube are formed, it is characterized in that: with the gas turbine in the loop, high-pressure compressor, low-pressure compressor, waste heat boiler, regenerator, intercooler, precooler and genset adopt that single shaft is vertical to be arranged in the energy conversion pressure vessel, described gas turbine, high-pressure compressor, low-pressure compressor is installed on the same axle from top to bottom successively, and links to each other with the genset that is arranged on energy conversion pressure vessel top by shaft coupling.
On the basis of such scheme, feature of the present invention also is waste heat boiler, regenerator, intercooler are arranged on around gas turbine, high-pressure compressor and the low-pressure compressor, the waste heat boiler import is near the gas turbine outlet, regenerator hot junction inlet is connected with the outlet of waste heat boiler, and its regenerator cold junction inlet links to each other with the outlet of high-pressure compressor; And precooler is arranged on energy conversion pressure vessel bottom, make its air intake opening near low-pressure compressor.
The present invention has the following advantages and beneficial effect:
1. integrated design: whole energy conversion system places in the pressure vessel, will have a radioactive loop gas and be isolated from the outside out, and makes this pressure vessel simultaneously as the radioactive pressure boundary of restriction, and not only security is good, and compact conformation, and is rationally distributed.
2. adopt the single shaft vertical structure: gas turbine, high-pressure compressor, low-pressure compressor and genset are installed on the same axis.Startup is convenient, heap-machine regulating system is simple, rotating speed is identical with mains frequency.
3. installation and removal are easy to maintenance: each parts of from top to bottom packing into during installation, coaxial helium gas turbine unit is installed as one, is connected with genset by shaft coupling at last.The replacing parts that need repairing, process is just in time opposite.
4. satisfying different circulations requires: middle single axle helium gas turbine unit is extracted out, then can be made vapor recycle and use; The helium gas turbine unit is inserted, then can realize combined cycle.
Description of drawings
Fig. 1 is a circulation theory synoptic diagram of the present invention.
Fig. 2 is a high temperature gas cooled reactor combined cycle generation integral system structural representation of the present invention.
Embodiment
Further specify the course of work of the present invention and embodiment below in conjunction with accompanying drawing:
Fig. 1 is a high temperature gas cooled reactor combined cycle system principle schematic.This system mainly comprises a loop and the genset of being made up of reactor core 14, gas turbine 10, waste heat boiler 9, regenerator 3, precooler 1, low-pressure compressor 13, high-pressure compressor 12 and middle ware cooler 26.High temperature gas cooled reactor association circulating power generation system provided by the invention adopts integral structure, and all parts and the genset of a loop except that reactor core placed the pressure vessel of a sealing, is referred to as energy conversion pressure vessel 6.Be about to gas turbine 10, high-pressure compressor 12, low-pressure compressor 13, waste heat boiler 9, regenerator 3, precooler 1, intercooler 2 and genset 7 in the loop and adopt that single shaft is vertical to be arranged in the energy conversion pressure vessel 6, and gas turbine, high-pressure compressor, low-pressure compressor are on the same axle, link to each other (being connected turbine rotor and generator amature) with genset 7 by shaft coupling 8.The installation site that is arranged in the parts in the energy conversion pressure vessel 6 from top to bottom is followed successively by: genset, gas turbine, high-pressure compressor and low-pressure compressor, at the arranged around waste heat boiler 9 of gas turbine, this waste heat boiler should be tried one's best near the exhausr port of gas turbine; Regenerator 3 is arranged in the waste heat boiler below, and regenerator hot junction inlet is connected with the outlet of waste heat boiler 9, and its regenerator cold junction inlet links to each other with the outlet of high-pressure compressor 12; Precooler 1 is arranged in the bottommost of energy conversion pressure vessel 6, near the air intake opening of low-pressure compressor 13.
The high temperature helium gas of core exit enters gas turbine in the energy conversion pressure vessel 6 by hot gas conduit 11 by reactor core 14, and the high-temperature tail gas after the acting of expanding is admitted to waste heat boiler 9, and the water in the vapor recycle is heated to be superheated vapor; On the energy conversion pressure vessel, be provided with cooling water inlet conduit 4 and steam (vapor) outlet conduit 5, connect the feedwater and the jet chimney of vapor recycle respectively.After the cooling of helium that waste heat boiler comes out, preheating high-pressure compressor outlet helium in regenerator 3 further reduces temperature by precooler 1 more earlier, returns reactor core 14 via after low, the high-pressure compressor two stages of compression by hot gas conduit 11 then.
Claims (3)
1. high temperature gas cooled reactor combined cycle generation integral system, this system mainly comprises by reactor core, gas turbine, waste heat boiler, regenerator, high-pressure compressor, low-pressure compressor, intercooler, a loop and genset that precooler and corresponding connecting tube are formed, it is characterized in that: with the gas turbine in the loop, high-pressure compressor, low-pressure compressor, waste heat boiler, regenerator, intercooler, precooler and genset adopt that single shaft is vertical to be arranged in the energy conversion pressure vessel, described gas turbine, high-pressure compressor, low-pressure compressor is installed on the same axle from top to bottom successively, and links to each other with the genset that is arranged on energy conversion pressure vessel top by shaft coupling.
2. the described a kind of high temperature gas cooled reactor combined cycle generation integral system of claim 1, it is characterized in that: waste heat boiler, regenerator, intercooler are arranged on around gas turbine, high-pressure compressor and the low-pressure compressor, the waste heat boiler import is near the gas turbine outlet, regenerator hot junction inlet is connected with the outlet of waste heat boiler, and its regenerator cold junction inlet links to each other with the outlet of high-pressure compressor.
3. according to claim 1 or 2 described a kind of high temperature gas cooled reactor combined cycle generation integral systems, it is characterized in that: described precooler is arranged on energy conversion pressure vessel bottom, and the air intake opening of close low-pressure compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021313318A CN1188867C (en) | 2002-09-29 | 2002-09-29 | Integrative high-temp. gas-cooled reactor united circulation power generating system |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB021313318A CN1188867C (en) | 2002-09-29 | 2002-09-29 | Integrative high-temp. gas-cooled reactor united circulation power generating system |
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| CN1402261A true CN1402261A (en) | 2003-03-12 |
| CN1188867C CN1188867C (en) | 2005-02-09 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332313A (en) * | 2011-10-10 | 2012-01-25 | 清华大学 | Passive residual heat removal system for high temperature gas cooled reactor |
| CN104751923A (en) * | 2015-03-31 | 2015-07-01 | 北京三超核科学技术研究院有限公司 | Integrated high temperature gas cooling pebble bed nuclear reactor power generation system |
| CN105244066A (en) * | 2015-09-29 | 2016-01-13 | 中国核动力研究设计院 | Self-startup emergency power generation system under nuclear power plant accident condition |
| CN106121732A (en) * | 2016-08-05 | 2016-11-16 | 武汉船用机械有限责任公司 | A kind of vertical multi-stage steam turbines |
| CN114758800A (en) * | 2022-05-17 | 2022-07-15 | 华能山东石岛湾核电有限公司 | Reactor core cooling method and system after emergency shutdown of high-temperature gas cooled reactor |
-
2002
- 2002-09-29 CN CNB021313318A patent/CN1188867C/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332313A (en) * | 2011-10-10 | 2012-01-25 | 清华大学 | Passive residual heat removal system for high temperature gas cooled reactor |
| CN104751923A (en) * | 2015-03-31 | 2015-07-01 | 北京三超核科学技术研究院有限公司 | Integrated high temperature gas cooling pebble bed nuclear reactor power generation system |
| CN105244066A (en) * | 2015-09-29 | 2016-01-13 | 中国核动力研究设计院 | Self-startup emergency power generation system under nuclear power plant accident condition |
| CN106121732A (en) * | 2016-08-05 | 2016-11-16 | 武汉船用机械有限责任公司 | A kind of vertical multi-stage steam turbines |
| CN114758800A (en) * | 2022-05-17 | 2022-07-15 | 华能山东石岛湾核电有限公司 | Reactor core cooling method and system after emergency shutdown of high-temperature gas cooled reactor |
| CN114758800B (en) * | 2022-05-17 | 2023-05-12 | 华能山东石岛湾核电有限公司 | Method and system for cooling reactor core after emergency shutdown of high-temperature gas cooled reactor |
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| Publication number | Publication date |
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| CN1188867C (en) | 2005-02-09 |
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