CN107587906A - 300MW grade supercritical carbon dioxide turbines and compressor shafting - Google Patents
300MW grade supercritical carbon dioxide turbines and compressor shafting Download PDFInfo
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- CN107587906A CN107587906A CN201710937048.9A CN201710937048A CN107587906A CN 107587906 A CN107587906 A CN 107587906A CN 201710937048 A CN201710937048 A CN 201710937048A CN 107587906 A CN107587906 A CN 107587906A
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- compressor
- turbine
- pressure turbine
- shaft
- high pressure
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Abstract
The invention discloses a kind of 300MW grade supercriticals carbon dioxide turbine and compressor shafting, the present invention includes generator end shaft coupling, turbine-shaft bearings section, turbine dry gas seals, low pressure turbine, high pressure turbine, turbine-shaft thrust disc, turbine-shaft and compressor main shaft shaft coupling, compressor main shaft bearings section, compressor dry gas seals, dummy piston, recompression machine, main compressor, compressor thrust disc, 300MW grade supercriticals carbon dioxide turbine and compressor main shaft Shafting torque are small in the present invention, the stress levels of shafting are identical with existing thermoelectricity turbine shafting stress levels, it may insure the safety of 300MW grade supercritical carbon dioxide turbines and compressor shafting.In addition, high pressure turbine is coaxial with low pressure turbine, both are middle part air inlet, outboard exhaust, can reduce the axial force of turbine-shaft；Main compressor and recompression machine are coaxial, and both are middle part air inlet, outboard exhaust, can reduce the axial force of compressor main shaft.
Description
Technical field
The present invention relates to a kind of supercritical carbon dioxide turbine and compressor shafting, more particularly to a kind of 300MW grades to surpass
Critical carbon dioxide turbine and compressor shafting.
Background technology
Supercritical carbon dioxide power generation cycle system have cycle efficieny is high, energy density is high, circulation without phase transformation, operation into
This low advantage, it is considered to be the important directions of future electrical energy development, the supercritical carbon dioxide power generation cycle of high-power grade
The arrangement of the rotating machinery of system is directly related with the design of system, construction, operation, maintenance, and excellent arrangement can
So that system architecture is compacter, crushing is smaller, operating maintenance is more economical, reduce needed for metal material dosage and the circulatory system
Space, the leakage rate in working medium running is reduced, reduce the moment of torsion of rotating machinery principle axis shafting, improve system internal rotation machinery
The security of equipment.
The content of the invention
It is an object of the invention to provide a kind of 300MW grade supercritical carbon dioxide turbines that can solve the problem that above mentioned problem
And compressor shafting.
The present invention is achieved through the following technical solutions above-mentioned purpose：Including turbine-shaft and compressor main shaft, turbine master
Axle one end passes through compressor shaft coupling and compressor main shaft phase by generator end shaft coupling and generator coupling of shaft system, the other end
Even；
Low pressure turbine master is sequentially installed between the generator end shaft coupling and compressor shaft coupling of described turbine-shaft
Axle bearing support, low pressure turbine dry gas seals, low pressure turbine, high pressure turbine, high pressure turbine dry gas seals, high pressure turbine spindle shaft
Support and turbine-shaft thrust disc are held, described low pressure turbine includes low pressure turbine wheel disc and the low pressure turbine leaf being disposed thereon
Piece, high pressure turbine include high pressure turbine wheel disc and the high pressure turbine blade being disposed thereon；
Described compressor main shaft from compressor shaft coupling be sequentially installed with backward compressor main shaft clutch shaft bearing supporting section,
The dry gas seals of compressor first, dummy piston, recompression machine, main compressor, the dry gas seals of compressor second, compressor main shaft the
Two bearings sections and compressor thrust disc.
Described high pressure turbine and low pressure turbine are middle part air inlet, both sides exhaust, high pressure turbine and the same cylinder of low pressure turbine
Arrangement.
Described high pressure turbine rotor is 4 grades of axial wheels, and low pressure turbine rotor is 5 grades of axial wheels.
Described main compressor and recompression machine is middle part air inlet, both sides exhaust, main compressor and the recompression same cylinder of machine
Arrangement.
Described main compressor rotor is 4 grades of receded disk impellers, and recompression machine rotor is 4 grades of receded disk impellers.
The beneficial effects of the present invention are：
300MW grade supercriticals carbon dioxide turbine of the present invention and compressor shafting, the low pressure turbine referred to, height
Turbine, recompression machine, the arrangement of main compressor are pressed, by being calculated as the 300MW grades comprising 2 turbines, 2 compressors
In the rotating machinery arrangement of the supercritical carbon dioxide circulatory system, the minimum scheme of principle axis shafting moment of torsion, this scheme axis
The stress levels of system are identical with existing thermoelectricity turbine shafting stress levels, it can be ensured that 300MW grade supercritical carbon dioxide is saturating
Flat and compressor shafting safety.
In addition, high pressure turbine is coaxial with low pressure turbine, both are middle part air inlet, outboard exhaust, can reduce turbine master
The axial force of axle；Main compressor and recompression machine are coaxial, and both are middle part air inlet, outboard exhaust, can reduce compression owner
The axial force of axle.
Brief description of the drawings
Fig. 1 is 300MW grade supercriticals carbon dioxide turbine of the present invention and the schematic diagram of compressor shafting；
Fig. 2 is 300MW grade supercriticals carbon dioxide turbine of the present invention and the moment of torsion and stress point of compressor shafting
Cloth schematic diagram；
In figure, 1 generator end shaft coupling；2 low pressure turbine main shaft bearing supporting sections；3 low pressure turbine dry gas seals；4 low pressure
Turbine wheel disc；5 low pressure turbine blades；6 turbine-shafts；7 high pressure turbine wheel discs；8 high pressure turbine blades；9 high pressure turbine dry gas are close
Envelope；10 high pressure turbine main shaft bearing supporting sections；11 turbine-shaft thrust discs；12 turbine-shafts and compressor main shaft shaft coupling；13
Compressor main shaft clutch shaft bearing supporting section；14 the first dry gas seals of compressor；15 dummy pistons；16 recompression machines；17 compressors
Main shaft；18 main compressors；19 the second dry gas seals of compressor；20 compressor main shaft second bearing supporting sections；21 compressor thrusts
Disk.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As shown in figure 1, the present invention includes turbine-shaft 6 and compressor main shaft 17, the one end of turbine-shaft 6 passes through generator end
Shaft coupling 1 and generator coupling of shaft system, the other end are connected by compressor shaft coupling 12 with compressor main shaft 17；
It is saturating that low pressure is sequentially installed between the generator end shaft coupling 1 and compressor shaft coupling 12 of described turbine-shaft 6
Flat main shaft bearing support 2, low pressure turbine dry gas seals 3, low pressure turbine, high pressure turbine, high pressure turbine dry gas seals 9, high pressure are saturating
Flat main shaft bearing support 10 and turbine-shaft thrust disc 11, described low pressure turbine include low pressure turbine wheel disc 4 and are arranged on it
On low pressure turbine blade 5, high pressure turbine includes high pressure turbine wheel disc 7 and the high pressure turbine blade 8 that is disposed thereon；
Described compressor main shaft 17 is sequentially installed with compressor main shaft clutch shaft bearing branch backward from compressor shaft coupling 12
Support section 13, the first dry gas seals of compressor 14；Dummy piston 15；Recompression machine 16；Main compressor 18；The dry gas of compressor second is close
Envelope 19；Compressor main shaft second bearing supporting section 20 and compressor thrust disc 21.
The high pressure turbine and low pressure turbine of the present invention is middle part air inlet, and both sides exhaust, high pressure turbine and low pressure turbine are same
Cylinder arranges that high pressure turbine rotor is 4 grades of axial wheels, and low pressure turbine rotor is 5 grades of axial wheels.
The main compressor 18 and recompression machine 16 of the present invention is middle part air inlet, both sides exhaust, main compressor 18 and is pressed again
Contracting machine 16 arranges that the described rotor of main compressor 18 is 4 grades of receded disk impellers with cylinder, and recompression machine 16 rotor is 4 grades centrifugal
Impeller.
During work, HTHP supercritical carbon dioxide working medium is first from high pressure turbine and the medium position of low pressure turbine shafting
High pressure turbine is flowed into, flows out after promoting high pressure turbine acting, is then heated by reheater, working medium is first from high pressure turbine and low pressure
The medium position of turbine shafting flows into low pressure turbine, is flowed out after promoting low pressure turbine acting, and working medium flows subsequently through temperature after heat exchanger
Degree reduces, and enters main compressor from the medium position of main compressor and recompression arbor system, by main compressor adherence pressure, with
After flow out main compressor, enter recompression machine from the medium position of main compressor and recompression arbor system, continue to lift up working medium pressure
Power, final gas is by heat exchanger and boiler, then flows into high pressure turbine, and working medium repeats said process.In the course of work, generate electricity
Machine, main compressor and recompression machine are dragged by high pressure turbine and low pressure turbine, high pressure turbine and positive work(caused by low pressure turbine
Rate, subtracts main compressor and backward power caused by recompression machine, and obtained power difference generates electricity for drawing generator.
As shown in Fig. 2 the 300MW grade supercritical carbon dioxide turbines and compressor shafting arranged in this manner,
The moment of torsion of axle is minimum, and the stress distribution of axle is reasonable, can be according to existing ripe turbine spindle material selection.
Claims (5)
1.300MW grade supercritical carbon dioxide turbines and compressor shafting, it is characterised in that：Including turbine-shaft (6) and pressure
Contracting owner axle (17), turbine-shaft (6) one end are passed through by generator end shaft coupling (1) and generator coupling of shaft system, the other end
Compressor shaft coupling (12) is connected with compressor main shaft (17)；
Low pressure is sequentially installed between the generator end shaft coupling (1) and compressor shaft coupling (12) of described turbine-shaft (6)
Turbine-shaft bearings (2), low pressure turbine dry gas seals (3), low pressure turbine, high pressure turbine, high pressure turbine dry gas seals
(9), high pressure turbine main shaft bearing support (10) and turbine-shaft thrust disc (11), described low pressure turbine include low pressure turbine wheel
Disk (4) and the low pressure turbine blade (5) being disposed thereon, high pressure turbine include high pressure turbine wheel disc (7) and are disposed thereon
High pressure turbine blade (8)；
Described compressor main shaft (17) is sequentially installed with compressor main shaft clutch shaft bearing branch backward from compressor shaft coupling (12)
Support section (13), the dry gas seals of compressor first (14)；Dummy piston (15)；Recompression machine (16)；Main compressor (18)；Compressor
Second dry gas seals (19)；Compressor main shaft second bearing supporting section (20) and compressor thrust disc (21).
2. 300MW grade supercriticals carbon dioxide turbine according to claim 1 and compressor shafting, it is characterised in that：
Described high pressure turbine and low pressure turbine are middle part air inlet, and both sides exhaust, high pressure turbine and low pressure turbine are arranged with cylinder.
3. 300MW grade supercriticals carbon dioxide turbine according to claim 1 and compressor shafting, it is characterised in that：
Described high pressure turbine rotor is 4 grades of axial wheels, and low pressure turbine rotor is 5 grades of axial wheels.
4. 300MW grade supercriticals carbon dioxide turbine according to claim 1 and compressor shafting, it is characterised in that：
Described main compressor (18) and recompression machine (16) is middle part air inlet, both sides exhaust, main compressor (18) and recompression machine
(16) arranged with cylinder.
5. 300MW grade supercriticals carbon dioxide turbine according to claim 1 and compressor shafting, it is characterised in that：
Described main compressor (18) rotor is 4 grades of receded disk impellers, and recompression machine (16) rotor is 4 grades of receded disk impellers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710937048.9A CN107587906A (en) | 2017-10-10 | 2017-10-10 | 300MW grade supercritical carbon dioxide turbines and compressor shafting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710937048.9A CN107587906A (en) | 2017-10-10 | 2017-10-10 | 300MW grade supercritical carbon dioxide turbines and compressor shafting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107587906A true CN107587906A (en) | 2018-01-16 |
Family
ID=61053009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710937048.9A Pending CN107587906A (en) | 2017-10-10 | 2017-10-10 | 300MW grade supercritical carbon dioxide turbines and compressor shafting |
Country Status (1)
| Country | Link |
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Citations (12)
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|---|---|---|---|---|
| JPH0311129A (en) * | 1989-06-07 | 1991-01-18 | Yanmar Diesel Engine Co Ltd | Gas turbine engine |
| JP2008082216A (en) * | 2006-09-27 | 2008-04-10 | Ntn Corp | Compression expansion turbine system |
| US20110283702A1 (en) * | 2010-05-19 | 2011-11-24 | Calnetix, Inc. | Generating energy from fluid expansion |
| US20120034067A1 (en) * | 2009-04-28 | 2012-02-09 | Concepts Eti, Inc. | Turbocompressor and System for a Supercritical-Fluid Cycle |
| US20120107143A1 (en) * | 2010-10-27 | 2012-05-03 | Dresser-Rand Company | Method and system for cooling a motor-compressor with a closed-loop cooling circuit |
| US8397506B1 (en) * | 2009-06-03 | 2013-03-19 | Steven A. Wright | Turbo-alternator-compressor design for supercritical high density working fluids |
| US20130142636A1 (en) * | 2011-12-01 | 2013-06-06 | Cummins Ltd. | Turbocharger arrangement |
| US20130160455A1 (en) * | 2010-09-14 | 2013-06-27 | Dresser-Rand Company | System and method of expanding a fluid in a hermetically-sealed casing |
| EP2687677A1 (en) * | 2012-07-20 | 2014-01-22 | Kabushiki Kaisha Toshiba | Turbine and operating method of the same |
| CN106014509A (en) * | 2016-07-28 | 2016-10-12 | 中国核动力研究设计院 | Turbine generator set adopting supercritical carbon dioxide as working medium |
| CN107131017A (en) * | 2017-04-27 | 2017-09-05 | 西安交通大学 | Circulation therrmodynamic system and control method based on supercritical carbon dioxide axial flow compressor Yu axial-flow turbine coaxial configuration |
| CN207315457U (en) * | 2017-10-10 | 2018-05-04 | 华能国际电力股份有限公司 | 300MW grade supercritical carbon dioxide turbines and compressor shafting |
-
2017
- 2017-10-10 CN CN201710937048.9A patent/CN107587906A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0311129A (en) * | 1989-06-07 | 1991-01-18 | Yanmar Diesel Engine Co Ltd | Gas turbine engine |
| JP2008082216A (en) * | 2006-09-27 | 2008-04-10 | Ntn Corp | Compression expansion turbine system |
| US20120034067A1 (en) * | 2009-04-28 | 2012-02-09 | Concepts Eti, Inc. | Turbocompressor and System for a Supercritical-Fluid Cycle |
| US8397506B1 (en) * | 2009-06-03 | 2013-03-19 | Steven A. Wright | Turbo-alternator-compressor design for supercritical high density working fluids |
| US20110283702A1 (en) * | 2010-05-19 | 2011-11-24 | Calnetix, Inc. | Generating energy from fluid expansion |
| US20130160455A1 (en) * | 2010-09-14 | 2013-06-27 | Dresser-Rand Company | System and method of expanding a fluid in a hermetically-sealed casing |
| US20120107143A1 (en) * | 2010-10-27 | 2012-05-03 | Dresser-Rand Company | Method and system for cooling a motor-compressor with a closed-loop cooling circuit |
| US20130142636A1 (en) * | 2011-12-01 | 2013-06-06 | Cummins Ltd. | Turbocharger arrangement |
| EP2687677A1 (en) * | 2012-07-20 | 2014-01-22 | Kabushiki Kaisha Toshiba | Turbine and operating method of the same |
| CN106014509A (en) * | 2016-07-28 | 2016-10-12 | 中国核动力研究设计院 | Turbine generator set adopting supercritical carbon dioxide as working medium |
| CN107131017A (en) * | 2017-04-27 | 2017-09-05 | 西安交通大学 | Circulation therrmodynamic system and control method based on supercritical carbon dioxide axial flow compressor Yu axial-flow turbine coaxial configuration |
| CN207315457U (en) * | 2017-10-10 | 2018-05-04 | 华能国际电力股份有限公司 | 300MW grade supercritical carbon dioxide turbines and compressor shafting |
Non-Patent Citations (1)
| Title |
|---|
| 张一帆;王生鹏;刘文娟;陈渝楠;王月明;李红智;: "超临界二氧化碳再压缩再热火力发电系统关键参数的研究" * |
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