CN102145438B - Assembling method of doorframe of wind power tower - Google Patents
Assembling method of doorframe of wind power tower Download PDFInfo
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- CN102145438B CN102145438B CN 201110069326 CN201110069326A CN102145438B CN 102145438 B CN102145438 B CN 102145438B CN 201110069326 CN201110069326 CN 201110069326 CN 201110069326 A CN201110069326 A CN 201110069326A CN 102145438 B CN102145438 B CN 102145438B
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000003466 welding Methods 0.000 claims abstract description 39
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000004080 punching Methods 0.000 abstract 2
- 239000010410 layer Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
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Abstract
The invention provides an assembling method of a doorframe of a wind power tower, comprising the following steps of: connecting a drum body positioned at a bottom into a total length; then arranging a support inside the opening position of the doorframe of the drum body; then punching a hole on the opening position of the doorframe; welding the doorframe with the drum body; then disassembling support tooling; welding the drum body with a lower flange; and finally reinspecting the dimension of the welded lower flange. The assembling method disclosed by the invention breaks the mindset of the conventional technology, acts in a diametrically opposite way and comprises the steps of firstly punching the hole and then welding; and in addition, the planeness of the welded lower tower drum flange is not more than 2 mm.
Description
Technical field
The present invention relates to a kind of doorframe assemble method of wind power tower.
Background technology
Along with the development of the environmental protection energy and the rise of low-carbon economy, wind-power electricity generation will become a large motive force that reaches the low-carbon (LC) standard as a kind of environmental protection energy in recent years.
Wind power tower is to weigh the concentrated reflection that a manufacturing enterprise manufactures ability as section's cover in the wind-power electricity generation, and it comprises the parts such as multistage cylindrical shell, flange, foundation ring, doorframe, interior annex.In the pylon manufacture process, the assembly welding etc. of assembly welding, interior annex and cylindrical shell of assembly welding, doorframe and pylon bottom cylindrical shell of assembly welding, foundation ring and the flange of the assembly welding of one section cylindrical shell and its adjacent cylindrical shell, every section cylindrical shell and flange is arranged.
In pylon was made, the control difficulty of lower tower drum flange flatness was larger, because the lower tower drum flange of doorframe distance that is positioned on the cylindrical shell of pylon bottom is nearer, so that the flatness control of lower tower drum flange is more difficult.According to the regulation of the Welding Structure general attention item of relevant Steel material in " mechanical design handbook " of chemical engineering industry publishing house, the manufacturing process steps of pylon bottom cylindrical shell is at present: first with the doorframe of cylindrical shell bottom the assembly welding pylon again behind pylon bottom cylindrical shell and the lower tower drum flange assembly welding.If adopt this manufacture craft, because the assembly welding spacing of lower tower drum flange and doorframe only has 600mm, the cylindrical shell thickness of slab is 54mm, and doorframe thickness is 200mm, and the door frame welding amount is large, preheating and interlayer temperature are higher, to cause the local deformation of pylon bottom, doorframe place cylindrical shell after the welding, and cause the flatness of lower tower drum flange overproof, its flatness is more than 5mm, even can reach 20mm, even adopt the method for flame correction also to be difficult to grasp and the control effect.
Summary of the invention
The purpose of this invention is to provide a kind of flatness with lower tower drum flange and be controlled at 2mm with the assemble method of interior doorframe of wind power tower.
In order to achieve the above object, technical scheme of the present invention has provided a kind of assembling method of doorframe of wind power tower, the steps include:
Method provided by the invention has been broken the mindset of routine techniques, acts in a diametrically opposite way, and welds after the first perforate, and the flatness of tower drum flange can not surpass 2mm under the postwelding.
Description of drawings
Fig. 1 is that pylon bottom cylindrical shell is installed the gripper shoe schematic diagram among the present invention;
Fig. 2 is that doorframe adopts symmetrical chiasma to move back segmentation and the welding sequence schematic diagram of the welding of arc method;
Fig. 3 is the welding sequence schematic diagram of every one deck in each section weld seam among Fig. 2.
The specific embodiment
Enumerate a better implementation method of the present invention below in conjunction with accompanying drawing.
In conjunction with Fig. 1, the invention provides a kind of assembling method of doorframe of wind power tower, the steps include:
In this step, welding adopts symmetrical chiasma to move back the arc method, introduces in detail this engineering method below in conjunction with Fig. 2 and Fig. 3.
As shown in Figure 2, weld seam between pylon bottom cylindrical shell 1 and the doorframe 3 is divided into 12 sections, every segment length is about 500mm, the weld seam at relative position place partners, 6 butt welded seams are namely arranged, and during if any three welders, then the weld seam at three relative position places partners, namely have 4 pairs, concrete grouping is decided according to welder's quantity of reality.
During welding, according to order as shown in Figure 2, intersected by two welders and symmetrical the 1st assembly welding seam to be welded, weld simultaneously successively subsequently the 2nd to 6 group.
For so that welding is more firm, usually need the welding multilayer, need inside and outside alternately welding during welding.As shown in Figure 3, need altogether in the present embodiment 38 layers of welding, welding sequence as shown in Figure 3, weld first the three layers of weld seam in the outside between pylon bottom cylindrical shell 1 and the doorframe 3, weld again the three layers of weld seam in inboard between pylon bottom cylindrical shell 1 and the doorframe 3, again then three layers in the welding outside, the like until all welding is complete with 38 layers, every layer thickness is controlled at 3-4mm.
In conjunction with Fig. 2 and Fig. 3, during welding, with the oval weld seam as shown in Figure 2 of every one deck all welding complete after, carry out again the welding of lower one deck.Such as for the 1st layer of weld seam among Fig. 3, after two welders of needs are complete with 12 sections whole welding as shown in Figure 2, begin again to weld the 2nd layer of weld seam among Fig. 3, which floor is so analogized for other.
When the job site owing to having a power failure or other is former thereby cause that long-time welding interrupts taking the measure that prevents that crackle from producing: cover uncompleted weld seam with heat-preservation cotton, make the weld seam insulation, until recover welding.Weld complete after, carry out immediately after-baking (adopting inside and outside two thermocouples to carry out temperature control).
Claims (4)
1. an assembling method of doorframe of wind power tower the steps include:
Step 1, with the multistage cylindrical shell successively end to end basic pylon that is assembled into;
Step 2, pylon bottom cylindrical shell (1) is connected to the bottom of basic pylon, it is characterized in that:
Step 3, be positioned at top and the below for the treatment of position of opening at pylon bottom cylindrical shell (1) and place at least respectively a gripper shoe (2), the inwall of the outer rim of gripper shoe (2) and pylon bottom cylindrical shell (1) is bonded to each other, thereby so that gripper shoe (2) support forming around the pylon bottom cylindrical shell (1);
Step 4, the upper perforate of cylindrical shell (1) bottom pylon, in doorframe (3) embedded hole, and with doorframe (3) cylindrical shell (1) welding bottom pylon all around;
Step 5, dismounting are positioned at the gripper shoe (2) of pylon bottom cylindrical shell (1), and with pylon bottom cylindrical shell (1) and lower tower drum flange (4) welding, postwelding carries out the size reinspection of lower tower drum flange (4).
2. a kind of assembling method of doorframe of wind power tower as claimed in claim 1, it is characterized in that: the outer rim in described gripper shoe (2) is provided with at least one drift, and drift props up the inwall of described pylon bottom cylindrical shell (1) pylon bottom cylindrical shell (1) is proofreaied and correct as cylindrical.
3. a kind of assembling method of doorframe of wind power tower as claimed in claim 1 is characterized in that: be provided with at least one gusset (6) on the surface of described gripper shoe (2), proofread and correct the flatness on described gripper shoe (2) surface by gusset (6).
4. a kind of assembling method of doorframe of wind power tower as claimed in claim 1 is characterized in that: weld described in the step 4 and adopt symmetrical chiasma to move back the arc method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110069326 CN102145438B (en) | 2011-03-22 | 2011-03-22 | Assembling method of doorframe of wind power tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110069326 CN102145438B (en) | 2011-03-22 | 2011-03-22 | Assembling method of doorframe of wind power tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102145438A CN102145438A (en) | 2011-08-10 |
| CN102145438B true CN102145438B (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110069326 Expired - Fee Related CN102145438B (en) | 2011-03-22 | 2011-03-22 | Assembling method of doorframe of wind power tower |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405597B (en) * | 2014-10-15 | 2018-04-03 | 新疆金风科技股份有限公司 | Doorframe, doorframe unit, the manufacture method of doorframe and the blower fan pylon of blower fan pylon |
| CN105397246B (en) * | 2015-12-24 | 2018-06-05 | 哈尔滨锅炉厂有限责任公司 | Thin-wall stainless steel plate spells anti-deformation method at square opening pipe weld port |
| CN106002008B (en) * | 2016-06-07 | 2017-11-07 | 中国水电四局(酒泉)新能源装备有限公司 | A kind of ultralow temperature high-power wind turbine tower door frame welding method |
| CN107350745A (en) * | 2017-07-26 | 2017-11-17 | 中航虹波风电设备有限公司 | The assembling and welding process of wind-power electricity generation wind tower doorframe |
| CN107511601B (en) * | 2017-10-13 | 2020-03-13 | 江苏中车电机有限公司 | Welding process for reducing welding deformation of tower side flange and window and door |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3504840A1 (en) * | 1985-02-13 | 1986-08-14 | Stahlrohrbau GmbH, 8500 Nürnberg | Reinforcing means for a tubular steel mast |
| CN101057074A (en) * | 2004-11-10 | 2007-10-17 | 维斯塔斯风力***有限公司 | A tower part for a wind turbine, an aperture cover system, a method for manufacturing a tower part and uses thereof |
-
2011
- 2011-03-22 CN CN 201110069326 patent/CN102145438B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3504840A1 (en) * | 1985-02-13 | 1986-08-14 | Stahlrohrbau GmbH, 8500 Nürnberg | Reinforcing means for a tubular steel mast |
| CN101057074A (en) * | 2004-11-10 | 2007-10-17 | 维斯塔斯风力***有限公司 | A tower part for a wind turbine, an aperture cover system, a method for manufacturing a tower part and uses thereof |
Non-Patent Citations (2)
| Title |
|---|
| 车建设.风力发电塔筒中Q345E钢的焊接.《甘肃科技》.2010,第26卷(第24期),第45页、第66-69页. |
| 风力发电塔筒中Q345E钢的焊接;车建设;《甘肃科技》;20101231;第26卷(第24期);第45页、第66-69页 * |
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| CN102145438A (en) | 2011-08-10 |
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