CN203245555U - Fixing device for transposition build-up welding of vapor generator tube plate on position changing machine - Google Patents
Fixing device for transposition build-up welding of vapor generator tube plate on position changing machine Download PDFInfo
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- CN203245555U CN203245555U CN 201320291290 CN201320291290U CN203245555U CN 203245555 U CN203245555 U CN 203245555U CN 201320291290 CN201320291290 CN 201320291290 CN 201320291290 U CN201320291290 U CN 201320291290U CN 203245555 U CN203245555 U CN 203245555U
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- tube sheet
- steam generator
- generator tube
- positioner
- riser
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Abstract
The utility model discloses a fixing device for transposition build-up welding of a vapor generator tube plate on a position changing machine. The fixing device comprises a pressure plate, multiple groups of vertical plate components and a transition plate, wherein the transition plate is connected and fixed with the position changing machine; the vertical plate components are arranged annularly and used for clamping the tube plate in the middle; the pressure plate is fixed on the upper end surfaces of the vertical plate components and used for pressing the upper end surface of the tube plate tightly; after fixed on the position changing machine through the fixing device, the tube plate can rotate or overturn with the position changing machine. Compared with the prior art, the fixing device has a simple structure, and is safe and reliable, and is convenient to operate.
Description
Technical field
The utility model relates to a kind of the weldering at the enterprising windrow of positioner for the steam generator tube sheet and uses fixture, relates in particular to the larger tube sheet of weight and carries out transposition built-up welding fixture at positioner.
Background technology
Tube sheet is the strength member that forms steam generator, the tube plate thickness of every steam generator reaches 1.025 meters in three AP1000 nuclear power generating sets, approximately 4.5 meters of external diameters, weigh 105 tons during built-up welding, tube sheet need built-up welding side is the concave shape with straight section, approximately 206 millimeters of straight section heights, built-up welding is divided into three kinds of situations, i.e. the built-up welding of arc transition section between the built-up welding of the built-up welding on plane, straight section, plane and straight section.The tube sheet that relatively in the past ran in the nuclear power generating equipment manufacture process, the tube sheet of AP1000 steam generator is all large much on thickness and diameter, and weight is also compared and was improved nearly 3 times in the past.And the built-up welding that will finish tube sheet primary side plane, straight section and arc transition section must cooperate welding equipment just can carry out at positioner, and be always the downhand welding station during welding equipment built-up welding, requirement treats that overlaying surface is horizontal all the time, therefore, in weld deposit process, the tube sheet fixture need satisfy following requirement:
1. its axis was coaxial with the positioner rotation when tube sheet rotated with positioner;
2. during the built-up welding plane, tube sheet is level (axis is perpendicular to the ground);
3. during the built-up welding straight section, tube sheet is plumbness (axis is parallel to the ground);
4. during the arc transition of built-up welding plane and straight section, tube sheet not only also overturns in 0 ° of-90 ° of scope with positioner with the positioner rotation;
5. need to have electric heater or fired heater to heat reaching the non-overlaying surface in bottom side around the tube sheet in the weld deposit process always, the temperature that suits to keep built-up welding, so fixture need leave the space of mounting heater.
The existing experience of similar nuclear power generating equipment manufactory all was that tube sheet directly is seated on the positioner table top in the past, behind the centering at tube sheet and several groups of blocks of the uniform installation of positioner contact position periphery, simultaneously at several groups of pressing plates of the uniform installation in tube sheet upper surface, by studs with T-slot on pressing plate and the positioner tight, studs wherein needs high strength alloy steel to make and through Overheating Treatment.Such mode that is installed only can satisfy the steam generator tube sheet that weight is little, thickness is little, can't satisfy the requirement that is installed of AP1000 steam generator tube sheet on intensity and rigidity, and can't mounting heater in the tube sheet bottom side.
The utility model content
For satisfying tube sheet built-up welding requirement, and solution the deficiencies in the prior art part, the utility model provide a kind of simple in structure, be convenient to the device making and use, satisfied the built-up welding requirement of tube sheet, filled up heavy, large tubesheet on positioner during built-up welding with the technological gap of fixture, simultaneously, the type mode that is installed also is applicable to medium and small tube sheet and fixes when the weldering of the enterprising windrow of positioner.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of steam generator tube sheet is transposition built-up welding fixture on positioner, it is characterized in that: comprise pressing plate, riser assembly and transition disc, wherein:
Described transition disc is a disk identical with positioner table top external diameter, its can with the positioner mechanical connection, be fixed with the described riser assembly of at least three groups on a plane of described transition disc, in the middle of the described riser assembly of at least three groups is limited to described steam generator tube sheet;
Each is organized described riser assembly and comprises a L shaped riser, and described L shaped riser all forms a step in the side towards described steam generator tube sheet, and the bottom surface of described L shaped riser is fixedly connected with described transition disc; Described steam generator integrated circuit board forms the location between the described riser assembly of at least three groups, the lower surface of described steam generator tube sheet is dropped on the described step of described L shaped riser, and the upper surface of described steam generator tube sheet is concordant with the upper surface of described L shaped riser;
Be fixed with described pressing plate in the upper surface of described L shaped riser, described pressing plate is combined on the upper surface of described steam generator tube sheet towards a side pressure of described steam generator tube sheet.
Further, described transition disc distributes according to the positioner T-slot and processes many grooves and a plurality of shoulder hole, and described shoulder hole is after installing connecting bolt, and connecting bolt does not expose the transition disc upper surface.
Further, each is organized described riser assembly and also comprises a base plate, and the bottom surface of described L shaped riser and described base plate are welded and fixed, and described base plate is weldingly fixed on the described transition disc again.
Further, described step and the described transition disc of described L shaped riser have certain distance, the heater that need to use in the time of can built-up welding being installed.
Utilize this fixture to finish tube sheet carries out primary side at positioner built-up welding, have the following advantages:
This apparatus structure is simple, safe and reliable, low cost of manufacture;
Easy to use, device does not weld the tube sheet easy accessibility with tube sheet;
Highly versatile is installed the built-up welding that once can be recycled and reused for many tube sheets of like products;
This device can replace in the past tube sheet fixed form fully, not only is fit to large-scale tube sheet, also is fit to simultaneously medium and small tube sheet built-up welding and uses;
But pre-seted the space of mounting heater in the tube sheet bottom side.
Description of drawings
Fig. 1 is AP1000 steam generator tube sheet transposition built-up welding fixture structure schematic diagram on positioner in the utility model;
Figure 1A is the top view of Fig. 1;
Fig. 2 is the neutral board component schematic diagram of the utility model;
Fig. 2 A is the left view of Fig. 2;
Fig. 3 is circular transition disc schematic diagram in the utility model;
Fig. 4 is that AP1000 steam generator tube sheet turn to 90 ° schematic diagram in the utility model at positioner.
The specific embodiment
Below in conjunction with Fig. 1～Fig. 4, describe the embodiment of AP1000 steam generator tube sheet transposition built-up welding on positioner in detail.
Shown in Fig. 1, Figure 1A, be the transposition built-up welding fixture structure schematic diagram on positioner of AP1000 steam generator tube sheet in the utility model, it comprises pressing plate 1, bolt 2, riser assembly 3 and transition disc 4, wherein:
Described transition disc 4, as shown in Figure 3, be a disk identical with positioner table top external diameter, distribution processes many grooves 41 and a plurality of shoulder hole 42 according to the positioner T-slot on it, described shoulder hole 42 is after installing connecting bolt, and connecting bolt does not expose the transition disc upper surface; Described transition disc 4 can pass through connecting bolt and T-nut and positioner 6 mechanical connections, be circular is fixed with in the middle of eight groups of (needing three groups) 3, eight groups of described riser assemblies 3 of described riser assembly are limited to described AP1000 steam generator tube sheet 5 at least on a plane of described transition disc 4;
Each organizes described riser assembly 3, shown in Fig. 2, Fig. 2 A, comprise a L shaped riser 30 and a base plate 31, described L shaped riser 30 all forms a step in the side towards described AP1000 steam generator tube sheet 5, make it L-shaped as shown in Figure 2, the bottom surface of described L shaped riser 30 and described base plate 31 are welded and fixed, and described base plate 31 is weldingly fixed on the described transition disc 4 again; Wherein, described step and the described transition disc 4 of described L shaped riser 30 have certain distance, can be when built-up welding be installed need to heater;
Described AP1000 steam generator tube sheet 5 is stuck in and forms the location between eight groups of described riser assemblies 3, the lower surface of described AP1000 steam generator tube sheet 5 is dropped on the described step of described L shaped riser 30, and the upper surface with concave shaped of described AP1000 steam generator tube sheet 5 is concordant with the upper surface of described L shaped riser 30;
The upper surface of described L shaped riser 30 has screwed hole, can be by described bolt 2 fixing described pressing plate 1, and described pressing plate 1 is combined on the upper surface of described AP1000 steam generator tube sheet 5 towards a side pressure of described AP1000 steam generator tube sheet 5.
When using the utility model to the tube sheet built-up welding, heating-up temperature when needing according to the tube sheet built-up welding, calculate tube sheet 5 at the thermal expansion amount of diameter and short transverse, thereby determine the installation dimension of fixture, 8 groups of riser assemblies 3 are ringwise on the uniform table top that is installed in positioner 6, after tube sheet 5 is in place, pressing plate 1 is installed again, is tighted a bolt 2, be about to tube sheet 5 and be fixed on the positioner 6, according to the built-up welding station, with positioner 6 rotation or upset until finish the built-up welding work of all faces.For example shown in Figure 4, be exactly AP1000 steam generator tube sheet 5 turn to 90 ° of positions at positioner 6 schematic diagram.
Although content of the present utility model has been done detailed introduction by above-mentioned preferred embodiment, will be appreciated that foregoing description should not be considered to restriction of the present utility model, protection domain of the present utility model should be limited by the claim that depends on.
Claims (4)
1. steam generator tube sheet transposition built-up welding fixture on positioner is characterized in that: comprise pressing plate, riser assembly and transition disc, wherein:
Described transition disc is a disk identical with positioner table top external diameter, its can with the positioner mechanical connection, be fixed with the described riser assembly of at least three groups on a plane of described transition disc, in the middle of the described riser assembly of at least three groups is limited to described steam generator tube sheet;
Each is organized described riser assembly and comprises a L shaped riser, and described L shaped riser all forms a step in the side towards described steam generator tube sheet, and the bottom surface of described L shaped riser is fixedly connected with described transition disc; Described steam generator integrated circuit board forms the location between the described riser assembly of at least three groups, the lower surface of described steam generator tube sheet is dropped on the described step of described L shaped riser, and the upper surface of described steam generator tube sheet is concordant with the upper surface of described L shaped riser;
Be fixed with described pressing plate in the upper surface of described L shaped riser, described pressing plate is combined on the upper surface of described steam generator tube sheet towards a side pressure of described steam generator tube sheet.
2. steam generator tube sheet according to claim 1 transposition built-up welding fixture on positioner, it is characterized in that: described transition disc distributes according to the positioner T-slot and processes many grooves and a plurality of shoulder hole, described shoulder hole is after installing connecting bolt, and connecting bolt does not expose the transition disc upper surface.
3. steam generator tube sheet according to claim 1 transposition built-up welding fixture on positioner, it is characterized in that: each is organized described riser assembly and also comprises a base plate, the bottom surface of described L shaped riser and described base plate are welded and fixed, and described base plate is weldingly fixed on the described transition disc again.
4. steam generator tube sheet according to claim 1 transposition built-up welding fixture on positioner, it is characterized in that: described step and the described transition disc of described L shaped riser have certain distance, the heater that need to use in the time of can built-up welding being installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320291290 CN203245555U (en) | 2013-05-24 | 2013-05-24 | Fixing device for transposition build-up welding of vapor generator tube plate on position changing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320291290 CN203245555U (en) | 2013-05-24 | 2013-05-24 | Fixing device for transposition build-up welding of vapor generator tube plate on position changing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203245555U true CN203245555U (en) | 2013-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320291290 Withdrawn - After Issue CN203245555U (en) | 2013-05-24 | 2013-05-24 | Fixing device for transposition build-up welding of vapor generator tube plate on position changing machine |
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| Country | Link |
|---|---|
| CN (1) | CN203245555U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264251A (en) * | 2013-05-24 | 2013-08-28 | 哈电集团（秦皇岛）重型装备有限公司 | Fixing device for transposition bead welding of vapor generator tube plate on position changing machine |
| CN105598627A (en) * | 2016-02-19 | 2016-05-25 | 江苏华源节水股份有限公司 | Automatic tailor-welding tool for reel sprinkler underbed |
| CN109551087A (en) * | 2019-01-03 | 2019-04-02 | 山东核电设备制造有限公司 | A kind of tube sheet automatic submerged-arc prosposition sets welding method |
-
2013
- 2013-05-24 CN CN 201320291290 patent/CN203245555U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264251A (en) * | 2013-05-24 | 2013-08-28 | 哈电集团（秦皇岛）重型装备有限公司 | Fixing device for transposition bead welding of vapor generator tube plate on position changing machine |
| CN105598627A (en) * | 2016-02-19 | 2016-05-25 | 江苏华源节水股份有限公司 | Automatic tailor-welding tool for reel sprinkler underbed |
| CN109551087A (en) * | 2019-01-03 | 2019-04-02 | 山东核电设备制造有限公司 | A kind of tube sheet automatic submerged-arc prosposition sets welding method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131023 Effective date of abandoning: 20150204 |
|
| RGAV | Abandon patent right to avoid regrant |