CN108457711A - A kind of new and effective welded type partition board - Google Patents
A kind of new and effective welded type partition board Download PDFInfo
- Publication number
- CN108457711A CN108457711A CN201810403068.2A CN201810403068A CN108457711A CN 108457711 A CN108457711 A CN 108457711A CN 201810403068 A CN201810403068 A CN 201810403068A CN 108457711 A CN108457711 A CN 108457711A
- Authority
- CN
- China
- Prior art keywords
- partition board
- diaphragm
- diaphragm body
- inner ring
- outer shroud
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/246—Fastening of diaphragms or stator-rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
- F01D9/041—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector using blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
- F01D9/042—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators
- F01D9/044—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators permanently, e.g. by welding, brazing, casting or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention discloses a kind of new and effective welded type partition boards, including diaphragm body and partition board horizontal flange, the diaphragm body is made of upper spacer and lower clapboard, the upper spacer and lower clapboard of the diaphragm body are symmetrical arranged about partition board horizontal flange, partition board outer shroud is provided on the outside of the diaphragm body, partition board inner ring is provided on the inside of the diaphragm body, diaphragm stator blade is installed between the partition board inner ring and partition board outer shroud, partition board nozzle is formed between the two neighboring diaphragm stator blade, the diaphragm body is provided centrally with central through hole.The present invention is by by the way that diaphragm stator blade made of whole milling is directly carried out welding installation with the partition board outer shroud of diaphragm body and partition board inner ring, improving blades flows efficiency, improving welding quality；Seal bond in diaphragm body and diaphragm gland circle ensure coincideing when upper and lower partition board installation, reduce the gas leakage at partition board horizontal flange, improve the packing performance of partition board.
Description
Technical field
The present invention relates to partition board of steam turbine technical field, specially a kind of new and effective welded type partition board.
Background technology
Partition board is main stationary parts in steam turbine, and kinetic energy is converted heat into its static cascade, and steam flow rate is fast,
Blade profile is streamlined, and runner wall surface is answered smooth, is had a direct impact to the efficiency of partition board.And partition board uses level to dividing shape
Formula, split can by blade profile, but in present partition board stator blade will first and shroud welding then again with partition board inner and outer rings
The mode of welding, poor welding quality, program are cumbersome, and stator blade steam passage can remain welding slag, influence efficiency and welding quality；And partition board
Upper and lower partition board installation place gas leakage at horizontal flange influences the packing performance of partition board.
Invention content
The technical problem to be solved by the present invention is to overcome the defect of the prior art, provide a kind of new and effective welded type every
Plate.
In order to solve the above technical problem, the present invention provides the following technical solutions：
A kind of new and effective welded type partition board of the present invention, including diaphragm body and partition board horizontal flange, the diaphragm body by
Upper spacer and lower clapboard composition, the upper spacer and lower clapboard of the diaphragm body are symmetrical arranged about partition board horizontal flange, institute
It states and is provided with partition board outer shroud on the outside of diaphragm body, partition board inner ring, the partition board inner ring are provided on the inside of the diaphragm body
Diaphragm stator blade is installed between partition board outer shroud, partition board nozzle is formed between the two neighboring diaphragm stator blade, it is described
Diaphragm body is provided centrally with central through hole, the central through hole, partition board inner ring and the setting of partition board outer shroud concentric, it is described every
Seal bond is installed, in the partition board inner ring that the seal bond is arranged between upper spacer and lower clapboard in plate inner ring.
Preferably, installation is welded at the both ends of the diaphragm stator blade between partition board outer shroud and partition board inner ring respectively, described
Diaphragm stator blade is formed using whole milling.
Preferably, the bottom of the seal bond is connected with diaphragm gland circle.
Preferably, multiple positioning keys are installed at the top of the partition board outer shroud, the positioning key is equidistantly distributed in partition board
On outer shroud.
The advantageous effect that is reached of the present invention is：This kind of new and effective welded type partition board, it is simple in structure, it is easy to use, lead to
It crosses and diaphragm stator blade made of whole milling is directly subjected to welding installation with the partition board outer shroud of diaphragm body and partition board inner ring, solve
Then mode that traditional diaphragm stator blade of having determined will be welded first with partition board inner and outer rings with shroud welding again, poor welding quality, journey
The problem of sequence is cumbersome and stator blade steam passage can remain welding slag, influence efficiency and welding quality improves blades flows efficiency, improves welding
Quality；Seal bond in diaphragm body and diaphragm gland circle ensure coincideing when upper and lower partition board installation, reduce partition board
Gas leakage at horizontal flange improves the packing performance of partition board.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the partition board horizontal flange structural schematic diagram of the present invention.
In figure：1- diaphragm bodies, 2- partition board horizontal flanges, 3- partition board outer shrouds, 4- partition board inner ring, 5- diaphragm stator blades,
6- partition board nozzles, 7- central through holes, 8- seal bonds, 9- diaphragm gland circles, 10- positioning keys.
Specific implementation mode
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Embodiment
As shown in Figs. 1-2, a kind of new and effective welded type partition board, including diaphragm body 1 and partition board horizontal flange 2, institute
It states diaphragm body 1 to be made of upper spacer and lower clapboard, the upper spacer and lower clapboard of the diaphragm body 1 are about in partition board level points
Face 2 is symmetrical arranged, and the outside of the diaphragm body 1 is provided with partition board outer shroud 3, and the inside of the diaphragm body 1 is provided with partition board
Inner ring 4, is equipped with diaphragm stator blade 5 between the partition board inner ring 4 and partition board outer shroud 3, the two neighboring diaphragm stator blade 5 it
Between be formed with partition board nozzle 6, the diaphragm body 1 is provided centrally with central through hole 7, the central through hole 7, partition board inner ring 4
Be arranged with 3 concentric of partition board outer shroud, seal bond 8 be installed in the partition board inner ring 4, the setting of the seal bond 8 in upper spacer and
In partition board inner ring 4 between lower clapboard, ensures coincideing when upper and lower partition board installation, reduce the leakage at partition board horizontal flange 2
Installation is welded at gas, the both ends of the diaphragm stator blade 5 between partition board outer shroud 3 and partition board inner ring 4 respectively, solve it is traditional every
Plate stator blade will first and the shroud welding then mode with the welding of partition board inner and outer rings again, and poor welding quality, program be cumbersome and stator blade
Steam passage can remain welding slag, the problem of influencing efficiency and welding quality, improve blades flows efficiency, improve welding quality, it is described every
Plate stator blade 5 is formed using whole milling, and the bottom of the seal bond 8 is connected with diaphragm gland circle 9, improves the packing of partition board
Can, the top of the partition board outer shroud 3 is equipped with multiple positioning keys 10, and the positioning key 10 equidistantly distributes on partition board outer shroud 3,
Convenient for by there are gap installations, gap to be used for expanding with heat and contract with cold for buffer unit between diaphragm body 1 and steam turbine.
Operation principle：This kind of new and effective welded type partition board first will be straight by diaphragm stator blade 5 made of whole milling
Connect and carry out welding installation with the partition board outer shroud 3 of diaphragm body 1 and partition board inner ring 4, solve traditional diaphragm stator blade 5 will first and
Then mode that shroud welding is welded with partition board inner and outer rings again, poor welding quality, program are cumbersome and stator blade steam passage can remain weldering
Slag, the problem of influencing efficiency and welding quality, improve blades flows efficiency, improve welding quality, then by seal bond 8 and every
Plate steam seal ring 9 ensures coincideing when upper and lower partition board installation, reduces together with forming the upper spacer of diaphragm body 1 with lower clapboard
Gas leakage at partition board horizontal flange 2 improves the packing performance of partition board, will be every finally by the positioning key 10 on partition board outer shroud 3
Plate body 1 is installed with steam turbine, and there are gaps to carry out buffer unit when partition board outer shroud 3 and steam turbine installation
Expand with heat and contract with cold.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (4)
1. a kind of new and effective welded type partition board, including diaphragm body（1）With partition board horizontal flange（2）, it is characterised in that：Institute
State diaphragm body（1）It is made of upper spacer and lower clapboard, the diaphragm body（1）Upper spacer and lower clapboard about partition board level
Split（2）It is symmetrical arranged, the diaphragm body（1）Outside be provided with partition board outer shroud（3）, the diaphragm body（1）It is interior
Side is provided with partition board inner ring（4）, the partition board inner ring（4）With partition board outer shroud（3）Between diaphragm stator blade is installed（5）, adjacent
Two diaphragm stator blades（5）Between be formed with partition board nozzle（6）, the diaphragm body（1）To be provided centrally with center logical
Hole（7）, the central through hole（7）, partition board inner ring（4）With partition board outer shroud（3）Concentric is arranged, the partition board inner ring（4）Upper peace
Equipped with seal bond（8）, the seal bond（8）The partition board inner ring being arranged between upper spacer and lower clapboard（4）On.
2. a kind of new and effective welded type partition board according to claim 1, it is characterised in that：The diaphragm stator blade（5）
Both ends respectively with partition board outer shroud（3）With partition board inner ring（4）Between weld installation, the diaphragm stator blade（5）Using whole milling
It makes.
3. a kind of new and effective welded type partition board according to claim 1, it is characterised in that：The seal bond（8）Bottom
Portion is connected with diaphragm gland circle（9）.
4. a kind of new and effective welded type partition board according to claim 1, it is characterised in that：The partition board outer shroud（3）'s
Top is equipped with multiple positioning keys（10）, the positioning key（10）It equidistantly distributes in partition board outer shroud（3）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810403068.2A CN108457711A (en) | 2018-04-28 | 2018-04-28 | A kind of new and effective welded type partition board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810403068.2A CN108457711A (en) | 2018-04-28 | 2018-04-28 | A kind of new and effective welded type partition board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108457711A true CN108457711A (en) | 2018-08-28 |
Family
ID=63236312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810403068.2A Pending CN108457711A (en) | 2018-04-28 | 2018-04-28 | A kind of new and effective welded type partition board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108457711A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159359A (en) * | 2019-05-25 | 2019-08-23 | 立德动力设备(浙江)有限公司 | A kind of partition and its processing method of steam turbine |
| CN112719810A (en) * | 2020-12-25 | 2021-04-30 | 重庆江增船舶重工有限公司 | Manufacturing method of split type nozzle ring |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150570A (en) * | 2015-04-09 | 2016-11-23 | 北京北重汽轮电机有限责任公司 | A kind of partition board of steam turbine and processing technique thereof |
| CN206860244U (en) * | 2017-04-27 | 2018-01-09 | 赵同坤 | A kind of back pressure turbine of extraction-condensing steam turbine transformation |
| JP2018040282A (en) * | 2016-09-07 | 2018-03-15 | 三菱日立パワーシステムズ株式会社 | Axial flow turbine and diaphragm outer ring thereof |
-
2018
- 2018-04-28 CN CN201810403068.2A patent/CN108457711A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150570A (en) * | 2015-04-09 | 2016-11-23 | 北京北重汽轮电机有限责任公司 | A kind of partition board of steam turbine and processing technique thereof |
| JP2018040282A (en) * | 2016-09-07 | 2018-03-15 | 三菱日立パワーシステムズ株式会社 | Axial flow turbine and diaphragm outer ring thereof |
| CN206860244U (en) * | 2017-04-27 | 2018-01-09 | 赵同坤 | A kind of back pressure turbine of extraction-condensing steam turbine transformation |
Non-Patent Citations (3)
| Title |
|---|
| 王德坚，张磊: "《汽轮机设备检修》", 31 July 2012 * |
| 蒋国元: "《WWER-1000核电厂系统与设备》", 31 December 2009 * |
| 西安电力高等专科学校，大唐韩城第二发电有限责任公司: "《600MW火电机组培训教材 汽轮机分册》", 31 May 2006 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159359A (en) * | 2019-05-25 | 2019-08-23 | 立德动力设备(浙江)有限公司 | A kind of partition and its processing method of steam turbine |
| CN110159359B (en) * | 2019-05-25 | 2022-03-08 | 立德动力设备(浙江)有限公司 | Method for processing partition plate of steam turbine |
| CN112719810A (en) * | 2020-12-25 | 2021-04-30 | 重庆江增船舶重工有限公司 | Manufacturing method of split type nozzle ring |
| CN112719810B (en) * | 2020-12-25 | 2022-05-17 | 重庆江增船舶重工有限公司 | Manufacturing method of split type nozzle ring |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180828 |
|
| RJ01 | Rejection of invention patent application after publication |