CN102966382B - Stator blade assembly method for steam turbine generator - Google Patents
Stator blade assembly method for steam turbine generator Download PDFInfo
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- CN102966382B CN102966382B CN201210507553.7A CN201210507553A CN102966382B CN 102966382 B CN102966382 B CN 102966382B CN 201210507553 A CN201210507553 A CN 201210507553A CN 102966382 B CN102966382 B CN 102966382B
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- stator blade
- steam turbine
- turbine generator
- assembly method
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Abstract
The invention provides a stator blade assembly method for a steam turbine generator, which is characterized by including the following steps: firstly installing a silicon rubber strip, a stainless steel plate and a thickness-adjustable regulation gasket in a groove bottom of a stator blade seat, making a mark in the center position of each section of stator blade seat, installing a first stator blade in the central mark place, respectively installing a middle stator blade on each of the two end faces of the stator blade seat, installing closing stator blades at the positions close to the two end faces, installing an installation pressing block on the closing stator blade in the groove bottom, and repeating the above steps until all stator blades in a groove are assembled. The method provided by the invention overcomes the disadvantages of the prior art, the stator blades are convenient to dismount, the overall machining amount is small, and the installation stability is high.
Description
Technical field
The present invention relates to a kind of steam turbine generator stator blade assembly method, belong to steam turbine generator technical field.
Background technique
Multistage stator blade bar is widely applied in big-and-middle-sized steam turbine generator, and its stator blade assembly method also presents variation, and original stator blade assembly method mainly contains two kinds:
The first is the mode that adopts welding.First on interior ring and outer shroud, process the groove that blade need to be installed, then the blade two ends that process are snapped in respectively in the groove of interior ring and outer shroud, and be welded and fixed with inner and outer rings, finally the stator blade loop that installs stator blade is installed in the groove on stator blade bar, and the punching of punching ocean is fixing.Adopt the interior ring of the method and outer shroud amount of finish large, and need to weld, the more difficult control of amount of deformation, stator blade disassembling, assembling and replacing difficulty.
The second adopts mechanical coupling mode.On every section of stator blade bar, slot, every grade blade bottom land is arranged two silicon rubber bars and stainless steel gasket, and stator blade is mounted in groove one by one, during to both ends of the surface, with briquetting, locks.Adopt the processing more complicated of grooved on the method stator blade bar, and owing to adopting every groove to place two silicon rubber bars and stainless steel gasket, need to processing kidney slot in briquetting place be installed at every groove, amount of finish is relatively large, and briquetting is only fixed by single screw, less stable.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of stator blade easy accessibility, whole amount of finish is few and installation reliability is high steam turbine generator stator blade assembly method.
In order to solve the problems of the technologies described above, technological scheme of the present invention is to provide a kind of steam turbine generator stator blade assembly method, it is characterized in that: the method is comprised of following 4 steps:
Step 1: the adjustment pad that silicon rubber bar, corrosion resistant plate and thickness can be finely tuned is installed in the bottom land of stator blade bar;
Step 2: mark in the central position at every section of stator blade bar, installs first stator blade at centre mark place, stator blade in the middle of then installing to stator blade bar both ends of the surface respectively, installs the stator blade of closing the door during to both ends of the surface;
Step 3: briquetting is installed in the stator blade installation place of closing the door in bottom land;
Step 4: repeating step 1～step 3 is until complete the assembling of stator blade in all grooves.
Preferably, in described bottom land every grade be provided with one for the groove of silicon rubber bar is installed.
Preferably, described in the stator blade of closing the door be provided with breach, breach end face is higher than bottom land.
Preferably, in described every section of stator blade bar both ends of the surface bottom land, be provided with one for the whole groove of briquetting is installed.
Preferably, described briquetting is located in bottom land by two screws.
A kind of steam turbine generator stator blade assembly method stator blade easy accessibility provided by the invention, every groove stator blade can carry out separately dismounting, and the amount of finish on stator blade bar is few, and the manufacturing cycle is short, and the stator blade two ends of closing the door are screwed briquetting, good stability.
Method provided by the invention has overcome the deficiencies in the prior art, and easy accessibility, whole amount of finish is few and installation reliability is high.
Accompanying drawing explanation
Fig. 1 is that stator blade is installed sectional view;
Fig. 2 is first stator blade, middle stator blade and the stator blade mounting point schematic diagram of closing the door;
Fig. 3 is briquetting scheme of installation;
Fig. 4 is the rear design sketch of assembling;
Description of reference numerals
1-stator blade; 101-first stator blade; Stator blade in the middle of 102-; The 103-stator blade of closing the door; 2-stator blade bar; 3-block slots; 4-silicon rubber bar; 5-corrosion resistant plate; 6-adjusts pad; 7-blade groove; 8-mark; 9-briquetting; 10-screw.
Embodiment
For the present invention is become apparent, hereby with a preferred embodiment, and coordinate accompanying drawing to be described in detail below.
A kind of steam turbine generator stator blade assembly method is comprised of following 4 steps:
Step 1: in conjunction with Fig. 1, silicon rubber bar 4, corrosion resistant plate 5 be installed and adjusted pad 6 at 7 ends of blade groove of stator blade bar 2, adjusting the thickness of pad 6 and can finely tune according to actual measurement process data.
Step 2: in conjunction with Fig. 2, in the central position of every section of stator blade bar 2, mark 8, in centre mark, first stator blade 101 is installed at 8 places, then stator blade 102 in the middle of installing to stator blade bar 2 both ends of the surface respectively, the stator blade 103 of closing the door is installed during to both ends of the surface, need to the stator blade 103 of closing the door at two ends be joined machining gap and be locked, after processing, breach end face should slightly exceed 3 ends of block slots.
Step 3: in conjunction with Fig. 3, stator blade bar 2 both ends of the surface are processed respectively the block slots 3 of certain depth, a briquetting 9 is arranged in corresponding every one-level stator blade 103 installation places of closing the door, and is fixed with two screws 10, for radially fixing of stator blade.
Step 4: repeating step 1～step 3 is until complete the assembling of stator blade in all grooves, and after assembling, design sketch as shown in Figure 4.
In a kind of steam turbine generator stator blade assembly method provided by the invention, every grade, 7 end of blade groove, only need be opened one for the groove of silicon rubber bar 4 is installed, and every section of stator blade bar 2 end faces only need be opened two for the block slots 3 of briquetting 9 is installed.Stator blade 1 easy accessibility, every groove stator blade 1 can carry out separately dismounting, and the amount of finish on stator blade bar 2 is few, and the manufacturing cycle is short, the stator blade 103 two ends fixedly briquetting 9 of screw 10 of closing the door, good stability.
Claims (4)
1. a steam turbine generator stator blade assembly method, is characterized in that: the method is comprised of following 4 steps:
Step 1: the adjustment pad (6) that silicon rubber bar (4), corrosion resistant plate (5) and thickness can be finely tuned is installed at blade groove (7) end in stator blade bar (2);
Step 2: mark in the central position of every section of stator blade bar (2) (8), in centre mark (8), locate to install first stator blade (101), then stator blade (102) in the middle of installing to stator blade bar (2) both ends of the surface respectively, installs the stator blade (103) of closing the door during to both ends of the surface;
Every section of stator blade bar (2) both ends of the surface are provided with one for the block slots (3) of briquetting (9) is installed;
Step 3: briquetting (9) is installed in stator blade (103) installation place of closing the door at block slots (3) end;
Step 4: repeating step 1～step 3 is until complete the assembling of stator blade in all grooves.
2. a kind of steam turbine generator stator blade assembly method as claimed in claim 1, is characterized in that: every grade, described blade groove (7) end is provided with one for the groove of silicon rubber bar (4) is installed.
3. a kind of steam turbine generator stator blade assembly method as claimed in claim 1, is characterized in that: described in the stator blade (103) of closing the door be provided with breach, breach end face is higher than block slots (3) end.
4. a kind of steam turbine generator stator blade assembly method as claimed in claim 1, is characterized in that: described briquetting (9) is located in block slots (3) by two screws (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210507553.7A CN102966382B (en) | 2012-11-30 | 2012-11-30 | Stator blade assembly method for steam turbine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210507553.7A CN102966382B (en) | 2012-11-30 | 2012-11-30 | Stator blade assembly method for steam turbine generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102966382A CN102966382A (en) | 2013-03-13 |
| CN102966382B true CN102966382B (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210507553.7A Active CN102966382B (en) | 2012-11-30 | 2012-11-30 | Stator blade assembly method for steam turbine generator |
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| CN (1) | CN102966382B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112701861B (en) * | 2020-12-04 | 2021-11-09 | 江苏核电有限公司 | Method for disassembling and assembling blade type high-pressure fan of steam turbine generator |
| CN114658694B (en) * | 2020-12-23 | 2024-05-14 | 上海电气电站设备有限公司 | Assembling method of adjustable guide vane of gas turbine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1621661A (en) * | 2003-11-25 | 2005-06-01 | 通用电气公司 | Method of installing stationary blades of a turbine and turbine structure having a radial loading pin |
| CN102482945A (en) * | 2009-09-02 | 2012-05-30 | 西门子公司 | A mounting apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2902843A1 (en) * | 2006-06-23 | 2007-12-28 | Snecma Sa | COMPRESSOR RECTIFIER AREA OR TURBOMACHINE DISTRIBUTOR SECTOR |
| US8206100B2 (en) * | 2008-12-31 | 2012-06-26 | General Electric Company | Stator assembly for a gas turbine engine |
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2012
- 2012-11-30 CN CN201210507553.7A patent/CN102966382B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1621661A (en) * | 2003-11-25 | 2005-06-01 | 通用电气公司 | Method of installing stationary blades of a turbine and turbine structure having a radial loading pin |
| CN102482945A (en) * | 2009-09-02 | 2012-05-30 | 西门子公司 | A mounting apparatus |
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| CN102966382A (en) | 2013-03-13 |
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