CN201424965Y - Backpressure steam turbine nozzle - Google Patents
Backpressure steam turbine nozzle Download PDFInfo
- Publication number
- CN201424965Y CN201424965Y CN2009201514261U CN200920151426U CN201424965Y CN 201424965 Y CN201424965 Y CN 201424965Y CN 2009201514261 U CN2009201514261 U CN 2009201514261U CN 200920151426 U CN200920151426 U CN 200920151426U CN 201424965 Y CN201424965 Y CN 201424965Y
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- Prior art keywords
- nozzle
- steam turbine
- steam
- model
- utility
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility mode relates to the field of mechanical parts, and particularly discloses a backpressure steam turbine nozzle, which comprises an inner ring and an outer ring, wherein nozzle vanes and nozzle intermediate packing blocks are arranged between the inner ring and the outer ring, and steam passages are distributed among the vanes. The backpressure steam turbine nozzle has the advantages that the nozzle can change exhaust parameters according to needs and increase efficiency of the steam turbine.
Description
Technical field
The utility model relates to a kind of component of machine, relates in particular to a kind ofly can rationally change the steam turbine exhaust parameter, can improve the novel back pressure type steam turbine machine nozzle of turbine efficiency again.
Background technique
Steam turbine is that the thermal power transfer with steam becomes mechanical energy.In steam turbine, steam expands in nozzle, and pressure reduces, and speed increases, and heat energy changes kinetic energy into.When the high speed steam flow is flowed through moving vane,, produced impulsion power, promoted impeller rotation acting, the kinetic energy of steam has been become the mechanical energy of axle rotation the turbine rotor blade because the steam flow direction changes.The efficient of existing nozzle of steam turbine is low, has bigger defective.
The model utility content
In order to overcome defective of the prior art, the utility model provides a kind of nozzle of steam turbine that can rationally change exhaust parameter, can raise the efficiency again.
The technological scheme that its technical problem that solves the utility model adopts is:
A kind of back pressure turbine nozzle comprises interior ring, outer shroud, is provided with nozzle vane and the middle fill block of nozzle between described interior ring and the outer shroud, is distributed with between the blade through the steam passage behind the optimization molded lines.
Owing to adopted technique scheme, the utlity model has and rationally to change the steam turbine exhaust parameter, can effectively improve the beneficial effect of turbine efficiency again.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a left view of the present utility model;
Fig. 3 is the C-C sectional view of Fig. 1.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
A kind of back pressure turbine nozzle comprises interior ring 1, outer shroud 2, is provided with nozzle vane 4 and the middle fill block 5 of nozzle between described interior ring 1 and the outer shroud 2, is distributed with the steam passage 8 after process is optimized molded lines between the blade 4.
The utility model has the advantages that:
1) reaches the 23.35t/h flow at the boiler steam supply, steam turbine inlet steam pressure remains on 2.35MPa, throttle (steam) temperature reaches 390 ℃, exhaust steam pressure increases to 0.49MPa (absolute pressure) by original 0.29MPa (absolute pressure), and the generator rated output power increases to present 1150KW by original 1000KW;
2) under the situation of identical steam parameter same traffic,, make the rated output power of former generator bring up to 1150KW by original 1000KW through transforming;
3) improved unit has not only improved back pressure, and has improved efficient again.
Obviously, the example of above-mentioned enforcement of the present utility model only is for the utility model example clearly is described, and is not to be qualification to mode of execution of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here can't give exhaustive to all mode of executions.Everyly belong to the row that conspicuous variation that the technical solution of the utility model extends out or change still are in protection domain of the present utility model.
Claims (1)
1, a kind of back pressure turbine nozzle is characterized in that: comprise interior ring, outer shroud, be provided with nozzle vane and the middle fill block of nozzle between described interior ring and the outer shroud, be distributed with between the blade through the steam passage behind the optimization molded lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201514261U CN201424965Y (en) | 2009-04-22 | 2009-04-22 | Backpressure steam turbine nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201514261U CN201424965Y (en) | 2009-04-22 | 2009-04-22 | Backpressure steam turbine nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201424965Y true CN201424965Y (en) | 2010-03-17 |
Family
ID=42024413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201514261U Expired - Fee Related CN201424965Y (en) | 2009-04-22 | 2009-04-22 | Backpressure steam turbine nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201424965Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606224A (en) * | 2011-12-19 | 2012-07-25 | 山东青能动力股份有限公司 | Impulse steam turbine welding partition board with embedded fixed blades and assembling process of impulse steam turbine welding partition board |
| CN103375180A (en) * | 2012-04-26 | 2013-10-30 | 阿尔斯通技术有限公司 | Turbine diaphragm construction |
| CN103422910A (en) * | 2013-08-22 | 2013-12-04 | 上海电气电站设备有限公司 | Steam turbine nozzle and manufacturing method thereof |
-
2009
- 2009-04-22 CN CN2009201514261U patent/CN201424965Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606224A (en) * | 2011-12-19 | 2012-07-25 | 山东青能动力股份有限公司 | Impulse steam turbine welding partition board with embedded fixed blades and assembling process of impulse steam turbine welding partition board |
| CN103375180A (en) * | 2012-04-26 | 2013-10-30 | 阿尔斯通技术有限公司 | Turbine diaphragm construction |
| CN103375180B (en) * | 2012-04-26 | 2016-01-20 | 阿尔斯通技术有限公司 | Turbine diaphragm construction |
| US9840928B2 (en) | 2012-04-26 | 2017-12-12 | General Electric Technology Gmbh | Turbine diaphragm construction |
| CN103422910A (en) * | 2013-08-22 | 2013-12-04 | 上海电气电站设备有限公司 | Steam turbine nozzle and manufacturing method thereof |
| CN103422910B (en) * | 2013-08-22 | 2015-07-08 | 上海电气电站设备有限公司 | Steam turbine nozzle and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100317 Termination date: 20110422 |