CN107222074B - Air-cooled steam turbine generator stator base assembling and welding process - Google Patents
Air-cooled steam turbine generator stator base assembling and welding process Download PDFInfo
- Publication number
- CN107222074B CN107222074B CN201710639366.7A CN201710639366A CN107222074B CN 107222074 B CN107222074 B CN 107222074B CN 201710639366 A CN201710639366 A CN 201710639366A CN 107222074 B CN107222074 B CN 107222074B
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- Prior art keywords
- middle section
- section base
- welding
- erection welding
- skeleton
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Classifications
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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
- H02K15/14—Casings; Enclosures; Supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
Abstract
The present invention provides a kind of air-cooled steam turbine generator stator base assembling and welding process, air-cooled steam turbine generator stator base by middle section base (1), vapour terminal seat (2), encourage terminal seat (3) three parts and form, three parts carry out welding equipment respectively, carry out general assembly again later；According to the design feature of new construction out frame, the complex assembly method combined using vertical assembly and horizontal assembly is improved assemblage of stator base welding quality, operates convenient construction；The welding of out frame block assembly, every section individually carries out, and realizes parallel erection welding, shortens construction period, improves erection welding efficiency；Using out frame footing piece as reference for assembling, guarantee the concentricity required precision of base entirety, realizes the high-precision assembly of out frame.
Description
Technical field
The present invention relates to a kind of stator frame of steam turbine generator assembling and welding process.
Background technique
Air cooled generator out frame is to realize that inversely divulging information and meet electricapparatus performance and transporting limitation is that design is difficult
Point, is limited by structure space, and electricity generator stator stand uses three-stage structure (middle section base, encourages terminal seat at vapour terminal seat), stator
Frame upper surface is three planes of 135 degree of intersections, for connecting closing for base overhead guard, the fitted position precision of three planes
It needs accurately to control the smooth assembly for meeting later period base overhead guard by welding equipment technology；The knot of air-cooled steam turbine generator stator base
Structure feature, if will be unable to the dimension precision requirement for meeting the base using previous welding technique, influencing generator
Normal use；If base ring flat-plate is not completely circular structure, the assembling and welding process of traditional closed assembly layer by layer cannot be used, it is same in assembling process
When to take into account ring flat-plate inner circle concentricity and frame upper surface be 135 degree three planar dimension precision intersected；Base inner supporting rib
Plate is few, and the decline of base overall stiffness, welding deformation is more difficult to control, in the technique of welding equipment crust after welding such as base skeleton,
It is not suitable for the assembling and welding process of air cooled generator out frame.
Summary of the invention
The present invention provides a kind of air-cooled steam turbine generator stator base assembling and welding process, the structure according to new construction out frame
Feature is combined, the method for base block assembly welding using vertical assembly and horizontal assembly, reaches and improve base fitted position
Precision guarantees the purpose of welding quality.The present invention is achieved by the following technical solutions:
1) air-cooled steam turbine generator stator base by middle section base (1), vapour terminal seat (2), encourage terminal seat (3) three parts group
At three parts carry out welding equipment respectively, carry out general assembly again later；
2) middle section base (1) erection welding: middle section base (1) is by middle section base skeleton (4) and joint hinge seat board (10), wiring
Seat board (11), middle section base side crust (12), middle section base connecting plate (13), middle section upper part of the frame crust (14) composition；It will
Middle section base skeleton (4) is divided into five parts and assembles, respectively the first middle section base skeleton (5), the second middle section base skeleton
(6), third middle section base skeleton (7), the 4th middle section base skeleton (8) and the 5th middle section base skeleton (9), middle section base skeleton
(4) five part assembly carry out independent erection welding respectively, and control each section assembly height is no more than 2 meters；
3) method using vertical erection welding is matched in the packing of the first middle section base skeleton (5), specifically: by the first middle section machine
The first layer ring flat-plate (15) of seat skeleton (5) is lain against on mounting plate, and fixed with assembly locating rack (22), with the first middle section machine
Upward layer-by-layer successively the first middle section of erection welding machine on the basis of the first layer ring flat-plate (15) of seat skeleton (5) and assembly locating rack (22)
Seat skeleton (5) first layer gusset (19), the first middle section base skeleton (5) second layer ring flat-plate (16), the first middle section base bone
The second layer gusset (20) of frame (5), the third layer ring flat-plate (17) of the first middle section base skeleton (5), the first middle section base skeleton (5)
Third layer gusset (21) and the first middle section base skeleton (5) the 4th layer of ring flat-plate (18), control the concentricity of each layer ring flat-plate not
More than ± 1mm, the flatness of 135 degree of frame upper surface intersections, three planes is no more than 1mm；
4) with the second middle section of erection welding method erection welding base skeleton identical with the first middle section base skeleton (5)
(6), third middle section base skeleton (7), the 4th middle section base skeleton (8) and the 5th middle section base skeleton (9)；
5) method that the general assembly of middle section base skeleton (4) uses horizontal erection welding, specific assembling process are as follows: by middle section
Base bottom side plate (24) is lain against on mounting plate, and middle section base footing piece (25) is fixed on interim assembly buttress (23),
Successively the first middle section of erection welding base skeleton (5), the second middle section base skeleton (6), third middle section base skeleton (7), the 4th
Middle section base skeleton (8) and the 5th middle section base skeleton (9) are in middle section base bottom side plate (24) and middle section base footing piece
(25) on, the concentricity of control middle section base ring flat-plate inner circle is no more than ± 1.5mm, 135 degree of frame upper surface intersections, three planes
Flatness be no more than 2mm, complete middle section base skeleton (4) erection welding；
6) erection welding joint hinge seat board (10) and wiring seat board (11) are on middle section base skeleton (4), erection welding middle section
Base side crust (12) is on middle section base skeleton (4), and erection welding middle section base connecting plate (13) is in middle section base skeleton
(4) on, erection welding middle section upper part of the frame crust (14) is on middle section base skeleton (4)；
7) vapour terminal seat (2) erection welding step: erection welding method is vertical erection welding, by vapour terminal seat first layer
Ring flat-plate (33) is lain on mounting plate, and fixed with assembly locating rack (22), with vapour terminal seat first layer ring flat-plate (33) and dress
With layer-by-layer successively erection welding vapour terminal seat first layer gusset (28), vapour terminal seat second layer ring upward on the basis of locating rack (22)
Plate (26), vapour terminal seat second layer gusset (29), vapour terminal seat third layer ring flat-plate (27), erection welding vapour terminal seat footing piece
(30) and vapour terminal seat connecting plate (31), erection welding vapour terminal seat crust (32)；
8) terminal seat (3) are encouraged with method erection welding identical with vapour terminal seat (2).
Technical effect
The present invention provides a kind of air-cooled steam turbine generator stator base assembling and welding process, the structure according to new construction out frame
Feature is combined, the method for base block assembly welding using vertical assembly and horizontal assembly, reaches and improve base fitted position
Precision guarantees that the purpose of welding quality, technical effect of the invention are as follows:
1) match since middle section base skeleton is divided into five packing, each erection welding method matched that dispenses is identical, is all made of
Vertical assembly, assembly height are no more than 2 meters, operate conveniently, and fitted position precision is high；
2) each packing is no more than ± 1mm with interior each layer ring flat-plate inner circle concentricity, and 135 degree of frame upper surface intersection three flat
The flatness in face is no more than 1mm；
3) 5, middle section base skeleton packing, which are matched, individually carries out, and realizes parallel erection welding, shortens construction period, mention
High welding equipment efficiency.
4) five middle section base bones for being completed independent erection welding in the method for horizontal erection welding using technique buttress
With erection welding is carried out with bottom side plate and footing piece, the concentricity of middle section base ring flat-plate inner circle is no more than ± 1.5mm for frame packing,
The flatness of 135 degree of frame upper surface intersections, three planes is no more than 2mm, realizes the high-precision assembly of out frame；
5) vapour terminal seat distinguishes welding equipment with terminal seat is encouraged, and can reduce base integral welding difficulty, reduces welding deformation, improves
Welding equipment dimensional accuracy.
Detailed description of the invention
Fig. 1 is three sections of base assembling schematic diagrams.
Fig. 2 is the first vertical erection welding schematic diagram of middle section base skeleton (5).
Fig. 3 is middle section base skeleton (4) erection welding schematic diagram.
Fig. 4 is middle section base joint hinge seat board, wiring seat board, middle section base side crust, middle section base connecting plate, middle section machine
Seat upper skin erection welding schematic diagram.
Fig. 5 is vapour terminal seat erection welding schematic diagram.
Specific implementation method
Model are as follows: the stator frame of steam turbine generator of air-cooled 412MVA by middle section base 1, vapour terminal seat 2, encourage terminal seat 3
Three parts composition, three parts carry out erection welding respectively, carry out general assembly again later, as shown in Figure 1；
Middle section base skeleton 4 divides to be assembled for five parts, and five part assembly carry out independent erection welding, each portion respectively
Packing is no more than 2 meters with height, and it is vertical erection welding that erection welding method is identical, as shown in Fig. 2, specifically: by middle section
Base first layer ring flat-plate 15 is fixed on assembly locating rack 22, is base with middle section base first layer ring flat-plate 15 and assembly locating rack 22
Quasi- layer-by-layer upwards successively erection welding middle section base first layer gusset 19, middle section base second layer ring flat-plate 16, middle section base second
Layer gusset 20, the 4th layer of middle section base third layer ring flat-plate 17, middle section base third layer gusset 21 and middle section base ring flat-plate 18, control
Each layer ring flat-plate inner circle concentricity is no more than ± 1mm, and the flatness of 135 degree of frame upper surface intersections, three planes is no more than 1mm；
As shown in figure 3, independent erection welding is completed in the method for horizontal erection welding using shown in technique buttress 23
First middle section base skeleton 5, the second middle section base skeleton 6, third middle section skeleton 7, the 4th middle section skeleton 8 and the 5th middle section skeleton
9 carry out erection welding with middle section base bottom side plate 24 and middle section base footing piece 25, control the same of middle section base ring flat-plate inner circle
Heart degree is no more than ± 1.5mm, and the flatness of 135 degree of frame upper surface intersections, three planes is no more than 2mm, completes middle section base bone
4 erection welding of frame；
As shown in figure 4, erection welding joint hinge seat board 10 and wiring seat board 11 be on middle section base skeleton 4, in erection welding
Section base side crust 12 on middle section base skeleton 4, erection welding middle section base connecting plate 13 on middle section base skeleton 4,
Erection welding middle section upper part of the frame crust 14 is in middle section base skeleton 4；
It vapour terminal seat 2 and encourages 3 erection welding step of terminal seat: vapour terminal seat 2 and encouraging 3 erection welding method phase of terminal seat
Together, by taking vapour terminal seat 2 as an example, as shown in figure 5, welding method is vertical erection welding, method are as follows: 2 first layer of vapour terminal seat
Ring flat-plate 33 is fixed on assembly locating rack 22, on the basis of 2 first layer ring flat-plate 33 of vapour terminal seat and assembly locating rack 22 successively according to
Secondary 2 first layer gusset 28 of erection welding vapour terminal seat, 2 second layer ring flat-plate 26 of vapour terminal seat, 2 second layer gusset 29 of vapour terminal seat,
2 third layer ring flat-plate 27 of vapour terminal seat, erection welding vapour terminal seat footing piece 30 and vapour terminal seat connecting plate 31, erection welding vapour end
Base crust 32.
Claims (1)
1. a kind of air-cooled steam turbine generator stator base assembling and welding process, it is characterized in that: entire welding equipment process presses following stage etch
It carries out:
1) air-cooled steam turbine generator stator base by middle section base (1), vapour terminal seat (2), encourage terminal seat (3) three parts and form,
Three parts carry out welding equipment respectively, carry out general assembly again later；
2) middle section base (1) erection welding: middle section base (1) is by middle section base skeleton (4) and joint hinge seat board (10), wiring seat board
(11), middle section base side crust (12), middle section base connecting plate (13), middle section upper part of the frame crust (14) composition；By middle section
Base skeleton (4) is divided into five parts and assembles, respectively the first middle section base skeleton (5), the second middle section base skeleton (6), the
Three middle section base skeletons (7), the 4th middle section base skeleton (8) and the 5th middle section base skeleton (9), middle section base skeleton (4) five
A part assembly carries out independent erection welding respectively, and control each section assembly height is no more than 2 meters；
3) method using vertical erection welding is matched in the packing of the first middle section base skeleton (5), specifically: by the first middle section base bone
The first layer ring flat-plate (15) of frame (5) is lain against on mounting plate, and fixed with assembly locating rack (22), with the first middle section base bone
Upward layer-by-layer successively the first middle section of erection welding base bone on the basis of the first layer ring flat-plate (15) of frame (5) and assembly locating rack (22)
The first layer gusset (19) of frame (5), the second layer ring flat-plate (16) of the first middle section base skeleton (5), the first middle section base skeleton (5)
Second layer gusset (20), the third layer ring flat-plate (17) of the first middle section base skeleton (5), the first middle section base skeleton (5)
4th layer of ring flat-plate (18) of three layers of gusset (21) and the first middle section base skeleton (5), the concentricity for controlling each layer ring flat-plate are no more than
The flatness of ± 1mm, 135 degree of frame upper surface intersections, three planes are no more than 1mm；
4) with the second middle section of erection welding method erection welding base skeleton (6) identical with the first middle section base skeleton (5),
Three middle section base skeletons (7), the 4th middle section base skeleton (8) and the 5th middle section base skeleton (9)；
5) method that the general assembly of middle section base skeleton (4) uses horizontal erection welding, specific assembling process are as follows: by middle section base
Bottom side plate (24) is lain against on mounting plate, and middle section base footing piece (25) is fixed on interim assembly buttress (23), successively
The first middle section of erection welding base skeleton (5), the second middle section base skeleton (6), third middle section base skeleton (7), the 4th middle section
Base skeleton (8) and the 5th middle section base skeleton (9) in middle section base bottom side plate (24) and middle section base footing piece (25),
The concentricity for controlling middle section base ring flat-plate inner circle is no more than ± 1.5mm, the flatness of 135 degree of frame upper surface intersections, three planes
No more than 2mm, middle section base skeleton (4) erection welding is completed；
6) erection welding joint hinge seat board (10) and wiring seat board (11) are on middle section base skeleton (4), erection welding middle section base
Side crust (12) is on middle section base skeleton (4), and erection welding middle section base connecting plate (13) is in middle section base skeleton (4)
On, erection welding middle section upper part of the frame crust (14) is on middle section base skeleton (4)；
7) vapour terminal seat (2) erection welding step: erection welding method is vertical erection welding, by vapour terminal seat first layer ring flat-plate
(33) it lies on mounting plate, and fixed with assembly locating rack (22), it is fixed with vapour terminal seat first layer ring flat-plate (33) and assembly
Upward layer-by-layer successively erection welding vapour terminal seat first layer gusset (28), vapour terminal seat second layer ring flat-plate on the basis of position frame (22)
(26), vapour terminal seat second layer gusset (29), vapour terminal seat third layer ring flat-plate (27), erection welding vapour terminal seat footing piece (30)
With vapour terminal seat connecting plate (31), erection welding vapour terminal seat crust (32)；
8) terminal seat (3) are encouraged with method erection welding identical with vapour terminal seat (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710639366.7A CN107222074B (en) | 2017-07-31 | 2017-07-31 | Air-cooled steam turbine generator stator base assembling and welding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710639366.7A CN107222074B (en) | 2017-07-31 | 2017-07-31 | Air-cooled steam turbine generator stator base assembling and welding process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107222074A CN107222074A (en) | 2017-09-29 |
| CN107222074B true CN107222074B (en) | 2019-04-19 |
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| CN201710639366.7A Active CN107222074B (en) | 2017-07-31 | 2017-07-31 | Air-cooled steam turbine generator stator base assembling and welding process |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108247303A (en) * | 2018-04-11 | 2018-07-06 | 哈尔滨电机厂有限责任公司 | A kind of assemblage of stator base welding technique |
| CN111230387B (en) * | 2020-03-18 | 2021-06-29 | 四川双鑫电气股份有限公司 | Turbine generator frame assembly welding concentricity guarantees device |
| CN113523721B (en) * | 2021-07-13 | 2023-07-07 | 江苏振江新能源装备股份有限公司 | Method for manufacturing three-lobe stator member and three-lobe stator member |
| CN114069987B (en) * | 2021-10-29 | 2022-12-02 | 德阳九鼎电气有限公司 | Manufacturing method of stator base of hydraulic generator |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB292509A (en) * | 1927-06-20 | 1929-10-18 | British Thomson Houston Co Ltd | Improvements in and relating to the construction of stators of dynamo-electric machines |
| JPH06245444A (en) * | 1993-02-15 | 1994-09-02 | Toyo Electric Mfg Co Ltd | Outer frame of coolant-type electric rotating machine and manufacture of the outer frame |
| CN100488008C (en) * | 2006-12-29 | 2009-05-13 | 山东齐鲁电机制造有限公司 | Assembling welding process for casing of box type generator |
| CN202395568U (en) * | 2011-11-21 | 2012-08-22 | 哈尔滨电机厂有限责任公司 | Power generator outer base with segmented machined, installed and welded structure |
| CN104362805B (en) * | 2014-12-01 | 2016-09-21 | 哈尔滨电机厂有限责任公司 | Novel 660MW electricity generator stator stand assembly welding method |
| CN105003305B (en) * | 2015-06-02 | 2017-05-31 | 苏州巨能发电配套设备有限公司 | A kind of steam turbine generator unsplit frame and its assembly technology |
| CN106208482B (en) * | 2016-08-02 | 2019-02-12 | 苏州巨能发电配套设备有限公司 | A kind of the ultra supercritical 1100MW nuclear power generator seat and its technique of easy processing |
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