CN103264251A - Fixing device for transposition bead welding of vapor generator tube plate on position changing machine - Google Patents
Fixing device for transposition bead welding of vapor generator tube plate on position changing machine Download PDFInfo
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- CN103264251A CN103264251A CN2013101986314A CN201310198631A CN103264251A CN 103264251 A CN103264251 A CN 103264251A CN 2013101986314 A CN2013101986314 A CN 2013101986314A CN 201310198631 A CN201310198631 A CN 201310198631A CN 103264251 A CN103264251 A CN 103264251A
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- tube sheet
- steam generator
- generator tube
- positioner
- riser
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Abstract
The invention discloses a fixing device for transposition bead welding of a vapor generator tube plate on a position changing machine. The fixing device comprises a pressing plate, stand plate assemblies and a transition tray. The transition tray is fixedly connected with the position changing machine. The plurality of sets of stand plate assemblies are arranged in a circular-shaped mode, and the tube plate is clamped among the stand plate assemblies. The pressing plate is fixed on the upper end faces of the stand plate assemblies and tightly pressed on the upper end face of the tube plate. After fixed on the position changing machine through the fixing device, the tube plate can rotate or turn over along with the position changing machine to be matched with an automatic welder for completing a bead welding process of the tube plate. Compared with the prior art, the fixing device for the transposition bead welding of the vapor generator tube plate on the position changing machine is simple in structure, safe, reliable and convenient to operate.
Description
Technical field
The present invention relates to a kind of the weldering at the enterprising windrow of positioner for the steam generator tube sheet and use fixture, relate in particular to the bigger tube sheet of weight and carry out transposition built-up welding fixture at positioner.
Background technology
Tube sheet is the strength member of forming steam generator, the tube plate thickness of every steam generator reaches 1.025 meters in three AP1000 nuclear power generating sets, about 4.5 meters of external diameter, weigh 105 tons during built-up welding, tube sheet needs the built-up welding side to be the concave shape of band straight section, about 206 millimeters of straight section height, 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 runs in the relative nuclear power generating equipment manufacture process in the past, the tube sheet of AP1000 steam generator is all big 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 in the weld deposit process to have always electric heater or fired heater to around the tube sheet and the non-overlaying surface in bottom side heat, keeping the suitable temperature of built-up welding, so fixture need leave the space that heater is installed.
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 in the tube sheet bottom side heater can't be installed.
Summary of the invention
For satisfying tube sheet built-up welding requirement, and solution the deficiencies in the prior art part, the invention provides 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 is applicable to that also medium and small tube sheet fixes when the weldering of the enterprising windrow of positioner.
For achieving the above object, the technical solution used in the present invention 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, on a plane of described transition disc the described riser assembly of at least three groups is arranged fixedly, 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, fixedlys connected with described transition disc in the bottom surface of described L shaped riser; 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;
Fixedly there is described pressing plate upper surface at described L shaped riser, and described pressing plate is pressed together on the upper surface of described steam generator tube sheet towards an end 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 the welding of described base plate are fixing, 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 use in the time of can built-up welding being installed.
Utilize this fixture to finish tube sheet and carry out the built-up welding of primary side at positioner, 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 tube sheet fixed form in the past fully, not only is fit to large-scale tube sheet, also is fit to medium and small tube sheet built-up welding simultaneously and uses;
Pre-seted the space that heater can be installed in the tube sheet bottom side.
Description of drawings
Fig. 1 is AP1000 steam generator tube sheet transposition built-up welding on positioner fixture structure schematic diagram among the present invention;
Figure 1A is the vertical view of Fig. 1;
Fig. 2 is the neutral board component schematic diagram of the present invention;
Fig. 2 A is the left view of Fig. 2;
Fig. 3 is circular transition disc schematic diagram among the present invention;
Fig. 4 turn to 90 ° schematic diagram at positioner for AP1000 steam generator tube sheet among the present invention.
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 among the present invention, 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, being circular on a plane of described transition disc 4 fixedly has eight groups of (needing at least three groups) 3, eight groups of described riser assemblies 3 of described riser assembly described AP1000 steam generator tube sheet 5 to be limited to middle;
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 31 welding of described base plate are fixing, 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, the heater that need use in the time of can supplying built-up welding is installed;
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 pressed together on the upper surface of described AP1000 steam generator tube sheet 5 towards an end of described AP1000 steam generator tube sheet 5.
When using the present invention 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 the built-up welding work of finishing 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 invention has been done detailed introduction by above-mentioned preferred embodiment, will be appreciated that foregoing description should not be considered to limitation of the present invention, protection scope of the present invention 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, on a plane of described transition disc the described riser assembly of at least three groups is arranged fixedly, 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, fixedlys connected with described transition disc in the bottom surface of described L shaped riser; 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;
Fixedly there is described pressing plate upper surface at described L shaped riser, and described pressing plate is pressed together on the upper surface of described steam generator tube sheet towards an end 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 the welding of described base plate are fixing, 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 use in the time of can built-up welding being installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310198631.4A CN103264251B (en) | 2013-05-24 | 2013-05-24 | Fixing device for transposition bead welding of vapor generator tube plate on position changing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310198631.4A CN103264251B (en) | 2013-05-24 | 2013-05-24 | Fixing device for transposition bead welding of vapor generator tube plate on position changing machine |
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| CN103264251A true CN103264251A (en) | 2013-08-28 |
| CN103264251B CN103264251B (en) | 2015-02-04 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104227217A (en) * | 2014-08-28 | 2014-12-24 | 湖州佳士不锈钢制品有限公司 | Special electric welding machine for welding stainless steel water tank |
| CN106735977A (en) * | 2017-01-19 | 2017-05-31 | 哈电集团（秦皇岛）重型装备有限公司 | A kind of supporting plate built-up welding anti-deformation device and the method using its built-up welding |
| CN109570877A (en) * | 2018-12-29 | 2019-04-05 | 哈电集团（秦皇岛）重型装备有限公司 | A method of it preventing the device of tube sheet built-up welding deformation and it is utilized to carry out built-up welding |
| CN112756835A (en) * | 2021-01-29 | 2021-05-07 | 东方电气集团东方锅炉股份有限公司 | Method for processing surfacing layer of butt weld of tube plate |
| CN113714667A (en) * | 2021-08-17 | 2021-11-30 | 沈阳东方钛业股份有限公司 | Method for preventing and treating pipe plate overlaying deformation |
| CN109570877B (en) * | 2018-12-29 | 2024-04-19 | 哈电集团（秦皇岛）重型装备有限公司 | Device for preventing tube plate from surfacing deformation and surfacing method using device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104227217A (en) * | 2014-08-28 | 2014-12-24 | 湖州佳士不锈钢制品有限公司 | Special electric welding machine for welding stainless steel water tank |
| CN106735977A (en) * | 2017-01-19 | 2017-05-31 | 哈电集团（秦皇岛）重型装备有限公司 | A kind of supporting plate built-up welding anti-deformation device and the method using its built-up welding |
| CN106735977B (en) * | 2017-01-19 | 2022-05-20 | 哈电集团（秦皇岛）重型装备有限公司 | Support plate surfacing anti-deformation device and surfacing method using same |
| CN109570877A (en) * | 2018-12-29 | 2019-04-05 | 哈电集团（秦皇岛）重型装备有限公司 | A method of it preventing the device of tube sheet built-up welding deformation and it is utilized to carry out built-up welding |
| CN109570877B (en) * | 2018-12-29 | 2024-04-19 | 哈电集团（秦皇岛）重型装备有限公司 | Device for preventing tube plate from surfacing deformation and surfacing method using device |
| CN112756835A (en) * | 2021-01-29 | 2021-05-07 | 东方电气集团东方锅炉股份有限公司 | Method for processing surfacing layer of butt weld of tube plate |
| CN112756835B (en) * | 2021-01-29 | 2022-10-28 | 东方电气集团东方锅炉股份有限公司 | Method for processing surfacing layer of butt weld of tube plate |
| CN113714667A (en) * | 2021-08-17 | 2021-11-30 | 沈阳东方钛业股份有限公司 | Method for preventing and treating pipe plate overlaying deformation |
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| CN103264251B (en) | 2015-02-04 |
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