CN108880137A - A kind of horizontal closed assembly side iron leg heart technique in steam turbine generator scene - Google Patents
A kind of horizontal closed assembly side iron leg heart technique in steam turbine generator scene Download PDFInfo
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- CN108880137A CN108880137A CN201810782323.9A CN201810782323A CN108880137A CN 108880137 A CN108880137 A CN 108880137A CN 201810782323 A CN201810782323 A CN 201810782323A CN 108880137 A CN108880137 A CN 108880137A
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- slot
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- closed assembly
- leg heart
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
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- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The present invention relates to a kind of horizontal closed assembly side iron leg heart techniques in steam turbine generator scene, in order to overcome punching during sleeping closed assembly to refer to the influence for assembling gravity for grooved size and straightness with pressure, inserting slot is using positioning screw, slot lining bar, the positioning of slot wedge slot locating bar during closed assembly, refer to that setting tool guarantees that installation pressure refers to the quality of assembly by positioning screw, slot lining bar, slot wedge slot locating bar, pressure after core through screw rod hole integer, closed assembly by tool core through screw rod.
Description
Technical field：
The present invention relates to a kind of horizontal closed assembly side iron leg heart techniques in steam turbine generator scene.
Background technique：
After steam turbine generator scene runs a period of time, the serious loosening in stator core (1) part can occur for individual units very
To failures such as broken teeths, location of fault generally on the side iron leg heart (2), the repairing technology of these failures have live Local treatment or
The methods of the side iron leg heart (2) again closed assembly is thoroughly handled.Stator core (1) is made of vertical closed assembly, by normal in manufactory
Advising process, the closed assembly side iron leg heart (2) also erects stator core (1) to come again, carries out this on iron core closed assembly station
Work, this requires that generator unit stator is transported back manufactory, repair procedures are at high cost, difficulty is big, the period is long.
Summary of the invention：
The object of the present invention is to provide a kind of reduction repair cost, shorten the repair cycle, guarantees the steamer hair that technique requires
The horizontal closed assembly side iron leg heart technique in motor scene, the technical scheme is that a kind of horizontal closed assembly side section in steam turbine generator scene
Iron core technique：
1), the turbine generator stator core (1) of positioning screw (3) and core through screw rod (4) structure, operation a period of time go out
After the existing side iron leg heart (2) damage, the technique of the horizontal closed assembly side iron leg heart (2) at the scene；
2), before the horizontal closed assembly side iron leg heart (2) in scene, stator core (1) back locating slot (9) is fixed with positioning screw (3)
The slot wedge slot (6) of position, inserting slot (5) positions with slot wedge slot locating bar (12) and stretches out the length greater than side the iron leg heart (2) thickness,
Inserting slot (5) slot bottom (7) is positioned with slot lining bar (11) and stretches out the length greater than side the iron leg heart (2) thickness, slot lining bar (11) quilt
Jackscrew (13) abuts against slot bottom (7), slot wedge slot locating bar (12) and slot lining bar (11) cooperation can by the tangential of inserting slot (5) and
Radial two-way positioning installs a set of slot wedge slot locating bar (12) and slot lining bar (11) at interval of an inserting slot (5)；
3), during the horizontal closed assembly side iron leg heart (2) in scene, new punching (8) take in layer vertical ring be placed in
On stator core (1) end face, back locating slot (9) and positioning screw (3) cooperate, and inserting slot (5) and slot lining bar (11) cooperate, slot
Wedge slot (6) and slot wedge slot locating bar (12) cooperate, guarantee the side iron leg heart (2) of closed assembly and the grooved size of stator core (1) and
Straightness is consistent, and the punching with tool core through screw rod (14) insertion side iron leg heart (2) and stator core (1) is interrupted during closed assembly
Screw hole (10) checks and integer；
4), after the horizontal closed assembly side iron leg heart (2) in scene, in the offline of no slot wedge slot locating bar (12) and slot lining bar (11)
Installation pressure refers to setting tool (16) in slot (5), and pressure refers to that setting tool (16) installation method is that pressure refers to that setting tool (16) one end is inserted
Fixed in stator core (1) ventilating duct (17), pressure refers to that setting tool (16) other end stretching end face of iron core pushes down pressure and refers to assembly
(15), every group of pressure refers to that setting tool (16) pushes down fixation with pressure at once after referring to assembly (15) installation, while using positioning screw
(3), pressure is referred to that the position of assembly (15) positions by slot lining bar (11), and tool core through screw rod (14) is inserted into the side iron leg heart (2), stator iron
The heart (1), pressure, which refer to, checks simultaneously integer in the core through screw rod hole (10) of assembly (15)；
5), during the horizontal closed assembly side iron leg heart (2) in scene, side iron leg heart temperature element, pressure refer to the installation of temperature element
Position and requirement keep identical as former design；
6), live horizontal time dress stator core (1) components, tight positioning screw (3) and core through screw rod (4), heating is new
The side iron leg heart (2) of closed assembly and hot tight stator core (1), keep the side iron leg heart (2) bonding integral, the side iron leg heart (2)
Tight positioning screw (3) and core through screw rod (4) are completed the horizontal closed assembly in the side iron leg heart (2) scene again after cooling.
Technical effect of the invention：
1) after steam turbine generator runs a period of time at the scene, when the side iron leg heart (2), which breaks down, needs thorough repair,
In order not to which stator is transported back manufactory, reduces repair cost, shortens the repair cycle, using the horizontal closed assembly side iron leg heart (2) in scene
Process；
2) the whether successful parameter of the side iron leg heart (2) closed assembly is that the side iron leg heart (2) of new folding will be with original stator core
(1) inserting slot (5) keeps grooved size, straightness consistent, there can be no step and buckling phenomenon, the horizontal closed assembly side iron leg heart
It (2) is that horizontal closed assembly will overcome punching (8) and pressure to refer to assembly (15) gravity pair with the maximum difference of closed assembly vertical in manufactory
In the influence of grooved size and straightness, it just can guarantee that the stator core (1) repaired can satisfy stator coil assembly in this way
Requirement, while side the iron leg heart (2) closed assembly after the completion of to carry out compression work together with original stator core (1), make to have repaired
Stator core (1) tightness meet the requirements, guarantee that unit can satisfy service requirement.
3) in order to guarantee the horizontal closed assembly side iron leg heart (2) grooved size and straightness afterwards, the present invention is in positioning process and admittedly
Determine to take a series of measures in method, inserting slot (5) uses positioning screw (3), slot lining bar (11), slot wedge slot during closed assembly
Locating bar (12) positioning, tool core through screw rod (14) use positioning screw (3), slot sample after core through screw rod hole (10) integer, closed assembly
Stick (11), pressure refer to that setting tool (16) guarantee that pressure refers to the installation of assembly (15).
The present invention has been successfully applied to the 660MW stator of steam turbine generator of certain positioning screw (3) and core through screw rod (4) structure
In the horizontal repairing verifying work of iron core (1)；Process through the invention puts the vapour end edge iron leg heart (2) stator is horizontal
In the case of setting, the new side iron leg heart (2) is gone out with new punching (8) closed assembly, the groove profile and tightness of the side iron leg heart (2) are all qualified, repair
All technical parameters of stator core (1) after reason are all qualified.
Detailed description of the invention
Fig. 1 turbine generator stator core and side iron leg hearty cord composition
Fig. 2 stator core cross-section structure
Fig. 3 lamination structure figure
Fig. 4 pressure refers to assembly structure figure
Tool installation diagram before the iron leg heart closed assembly of the side Fig. 5
Tool arranges end view drawing before the iron leg heart closed assembly of the side Fig. 6
Fig. 7 pressure positions tool state figure after referring to assembly installation
Fixed pressure refers to tool state figure after Fig. 8 pressure refers to assembly installation
Fig. 9 positioning tool and pressure refer to that setting tool arranges end view drawing
Figure 10 pressure refers to setting tool state diagram in inserting slot
Specific embodiment：
The horizontal closed assembly side iron leg heart technique in stator of steam turbine generator scene.Its process implementing process is as follows：
1) before the closed assembly side iron leg heart 2, first positioning tool is all installed in place, the positioning of 1 back locating slot 9 of stator core
Screw rod 3 positions, the slot wedge slot 6 of inserting slot 5 positions with slot wedge slot locating bar 12 and stretch out the length greater than 2 thickness of the side iron leg heart,
5 slot bottom 7 of inserting slot is positioned with slot lining bar 11 and stretches out the length greater than 2 thickness of the side iron leg heart, and slot lining bar 11 is abutted against by jackscrew 13
In slot bottom 7, slot wedge slot locating bar 12 and the cooperation of slot lining bar 11 can by the tangentially and radially two-way positioning of inserting slot 5, at interval of
One inserting slot 5 installs a set of slot wedge slot locating bar 12 and slot lining bar 11；
2) during the closed assembly side iron leg heart 2, location measure in place under the premise of, new punching 8 is taken vertical in layer
Annular is placed on 1 end face of stator core, and the back locating slot 9 of new punching 8 positions after cooperating with positioning screw 3, new punching 8
Inserting slot 5 positions after cooperating with slot lining bar 11, and the slot wedge slot 6 of new punching 8 positions after cooperating with slot wedge slot locating bar 12, guarantees folded
The side iron leg heart 2 of dress is consistent with the grooved size of stator core 1 and straightness；
3) closed assembly while interruption tool core through screw rod 14 is inserted into during the iron leg heart 2 the iron leg heart 2 and stator core 1 wear
Heart screw hole 10 checks and integer；
4) after the closed assembly side iron leg heart 2, installation pressure refers to solid in the inserting slot 5 of no slot wedge slot locating bar 12 and slot lining bar 11
Determine tool 16；
5) pressure refers to that 16 installation method of setting tool is that pressure refers to that 16 one end of setting tool is inserted in 1 ventilating duct 17 of stator core admittedly
Fixed, pressure refers to that 16 other end of setting tool stretching end face of iron core pushes down pressure and refers to assembly 15, and every group of pressure refers to be used at once after assembly 15 is installed
Pressure refers to that setting tool 16 pushes down fixation；
6) safeguard measure of position is that pressure is referred to assembly 15 using positioning screw 3, slot lining bar 11 when pressure refers to 15 installation of assembly
Position positioning, tool core through screw rod 14 be inserted into the side iron leg heart 2, stator core 1, pressure refer to assembly 15 core through screw rod hole 10 in examines
Look into simultaneously integer；
7) during the horizontal closed assembly side iron leg heart 2 in scene, side iron leg heart temperature element, pressure refer to the installation site of temperature element
With require keep with original design it is identical；
8) 1 components of assembling stator iron core, tight positioning screw 3 and core through screw rod 4；
9) it heats the side iron leg heart 2 of new closed assembly and hot tight stator core 1, is bonded the side iron leg heart 2 integrally；
10) it is horizontal to be completed 2 scene of the side iron leg heart for tight positioning screw 3 and core through screw rod 4 again after the side iron leg heart 2 is cooling
Closed assembly.
Specific process step：
It is illustrated by taking certain steam turbine generator as an example below：
Steam turbine generator structure chart by Fig. 1, including stator core 1, the side iron leg heart 2, positioning screw 3, core through screw rod 4,
Pressure refers to the ventilating duct 17 of assembly 15, stator core 1 and the side iron leg heart 2；
It is the view profile of turbine generator stator core 1 by Fig. 2,1 back of stator core is fixed by positioning screw 3, in
Portion is fixed by core through screw rod 4, the slot wedge slot 6 of inserting slot 5 and the position of slot bottom 7；
It is 8 structure chart of punching of steam turbine generator by Fig. 3, back locating slot 9 and the cooperation of positioning screw 3 position, punching spiral shell
Rod aperture 10 and the cooperation of core through screw rod 4 tense stator core 1, inserting slot 5；
It is that the pressure of steam turbine generator refers to 15 structure charts of assembly, including back locating slot 9, inserting slot 5, core through screw rod by Fig. 4
Hole 10；
By Fig. 5, before the closed assembly side iron leg heart 2, first positioning tool is installed in inserting slot 5, guarantees slot lining bar 11, slot wedge slot
Locating bar 12, jackscrew 13 length in original 1 range of stator core are larger as far as possible；
By Fig. 6, slot lining bar 11, slot wedge slot locating bar 12, jackscrew 13 are installed a set of every an inserting slot 5；
By Fig. 7, the iron leg heart 2 closed assembly process in side is new punching 8 to be laminated on 1 end face of stator core in layer, back is fixed
Position slot 9 is hung on positioning screw 3, and 5 position of inserting slot slot lining bar 11 and slot wedge slot locating bar 12 position, interruption tool punching
14 integer of screw rod；
By Fig. 8, after 2 closed assembly of the side iron leg heart, one group of pressure of every installation refers to assembly 15, and it is solid to refer to that setting tool compresses with pressure at once
It is fixed, it prevents the larger pressure of weight from referring to that 15 back locating slots 9 of assembly are disengaged from positioning screw 3 and falls down, inserting slot 5 is fixed with slot lining bar 11
Position checks simultaneously integer with tool core through screw rod 14；
By Fig. 9, pressure refer to setting tool 16 installed every an inserting slot 5 it is a set of, with slot lining bar 11, slot wedge slot locating bar 12
Staggered positions installation；
By Figure 10, pressure refers to that 16 one end of setting tool is inserted in the ventilating duct 17 of inserting slot 5, and the other end is pressed in pressure and refers to assembly 15
Pressure refer on；
Other components of 1 end of assembling stator iron core, assemble core through screw rod 4, and tight stator core 1 is heated side section by cold conditions
Iron core 2, it is hot tight stator core 1, again tight stator core 1 after cooling.
Claims (1)
1. a kind of horizontal closed assembly side iron leg heart technique in steam turbine generator scene, it is characterized in that：
1) there is side in the turbine generator stator core (1) of positioning screw (3) and core through screw rod (4) structure, operation a period of time
After the iron leg heart (2) damage, the technique of the horizontal closed assembly side iron leg heart (2) at the scene；
2) before the horizontal closed assembly side iron leg heart (2) in scene, stator core (1) back locating slot (9) is positioned with positioning screw (3), under
The slot wedge slot (6) of wire casing (5) is positioned with slot wedge slot locating bar (12) and stretches out the length greater than side the iron leg heart (2) thickness, offline
Slot (5) slot bottom (7) is positioned with slot lining bar (11) and stretches out the length greater than side the iron leg heart (2) thickness, and slot lining bar (11) is by jackscrew
(13) it abuts against slot bottom (7), slot wedge slot locating bar (12) and slot lining bar (11) cooperation can be by inserting slots (5) tangentially and radially
Two-way positioning installs a set of slot wedge slot locating bar (12) and slot lining bar (11) at interval of an inserting slot (5)；
3) during the horizontal closed assembly side iron leg heart (2) in scene, new punching (8) take in layer vertical ring be placed in stator iron
On the heart (1) end face, back locating slot (9) and positioning screw (3) cooperate, and inserting slot (5) and slot lining bar (11) cooperate, slot wedge slot
(6) cooperate with slot wedge slot locating bar (12), guarantee the side iron leg heart (2) of closed assembly and the grooved size and straight line of stator core (1)
Degree is consistent, and the core through screw rod with tool core through screw rod (14) insertion side iron leg heart (2) and stator core (1) is interrupted during closed assembly
Hole (10) checks and integer；
4) after the horizontal closed assembly side iron leg heart (2) in scene, in the inserting slot (5) of no slot wedge slot locating bar (12) and slot lining bar (11)
Middle installation pressure refers to setting tool (16) that pressure refers to that setting tool (16) installation method is that pressure refers to that setting tool (16) one end is inserted in stator
Fixed in iron core (1) ventilating duct (17), pressure refers to that setting tool (16) other end stretching end face of iron core pushes down pressure and refers to assembly (15), often
Group pressure refers to that setting tool (16) pushes down fixation with pressure at once after referring to assembly (15) installation, while using positioning screw (3), slot lining bar
(11) pressure is referred to that the position of assembly (15) positions, tool core through screw rod (14) the insertion side iron leg heart (2), stator core (1), pressure refer to
It assembles and checks simultaneously integer in the core through screw rod hole (10) of (15)；
5) during the horizontal closed assembly side iron leg heart (2) in scene, side iron leg heart temperature element, pressure refer to temperature element installation site and
It is required that keeping identical as former design；
6) tight positioning screw (3) and core through screw rod (4) are heated new closed assembly by live horizontal time dress stator core (1) components
The side iron leg heart (2) simultaneously keeps the side iron leg heart (2) bonding integral hot tight stator core (1), after the side iron leg heart (2) cooling
Again tight positioning screw (3) and core through screw rod (4), the horizontal closed assembly in the side iron leg heart (2) scene is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810782323.9A CN108880137B (en) | 2018-07-17 | 2018-07-17 | On-site horizontal type edge section iron core stacking process for steam turbine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810782323.9A CN108880137B (en) | 2018-07-17 | 2018-07-17 | On-site horizontal type edge section iron core stacking process for steam turbine generator |
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| Publication Number | Publication Date |
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| CN108880137A true CN108880137A (en) | 2018-11-23 |
| CN108880137B CN108880137B (en) | 2020-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810782323.9A Active CN108880137B (en) | 2018-07-17 | 2018-07-17 | On-site horizontal type edge section iron core stacking process for steam turbine generator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110707885A (en) * | 2019-12-03 | 2020-01-17 | 哈尔滨电机厂有限责任公司 | Process method for assembling insulating sleeve on iron core back |
| CN113364226A (en) * | 2021-07-22 | 2021-09-07 | 哈尔滨电机厂有限责任公司 | Horizontal type stacking positioning and compressing process method for main stator iron core |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4634909A (en) * | 1984-08-08 | 1987-01-06 | Bbc Brown, Boveri & Company Limited | Electric machine |
| CN104393720A (en) * | 2014-12-09 | 2015-03-04 | 国家电网公司 | Method for rapidly positioning penetrating screw rod holes of generator motor stator |
| CN104779752A (en) * | 2015-04-28 | 2015-07-15 | 湖南云箭科技有限公司 | Stator floating iron core locating and tensioning device and stator floating iron core installing method |
| CN207603409U (en) * | 2017-11-23 | 2018-07-10 | 浙江创天电机科技有限公司 | A kind of silicon steel sheet Fold additon location slot structure |
-
2018
- 2018-07-17 CN CN201810782323.9A patent/CN108880137B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4634909A (en) * | 1984-08-08 | 1987-01-06 | Bbc Brown, Boveri & Company Limited | Electric machine |
| CN104393720A (en) * | 2014-12-09 | 2015-03-04 | 国家电网公司 | Method for rapidly positioning penetrating screw rod holes of generator motor stator |
| CN104779752A (en) * | 2015-04-28 | 2015-07-15 | 湖南云箭科技有限公司 | Stator floating iron core locating and tensioning device and stator floating iron core installing method |
| CN207603409U (en) * | 2017-11-23 | 2018-07-10 | 浙江创天电机科技有限公司 | A kind of silicon steel sheet Fold additon location slot structure |
Non-Patent Citations (1)
| Title |
|---|
| 宫玉龙等: ""官地水轮发电机定子铁心安装工艺"", 《电工电气》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110707885A (en) * | 2019-12-03 | 2020-01-17 | 哈尔滨电机厂有限责任公司 | Process method for assembling insulating sleeve on iron core back |
| CN113364226A (en) * | 2021-07-22 | 2021-09-07 | 哈尔滨电机厂有限责任公司 | Horizontal type stacking positioning and compressing process method for main stator iron core |
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| CN108880137B (en) | 2020-02-25 |
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