CN102145438A - Assembling method of doorframe of wind power tower - Google Patents
Assembling method of doorframe of wind power tower Download PDFInfo
- Publication number
- CN102145438A CN102145438A CN2011100693266A CN201110069326A CN102145438A CN 102145438 A CN102145438 A CN 102145438A CN 2011100693266 A CN2011100693266 A CN 2011100693266A CN 201110069326 A CN201110069326 A CN 201110069326A CN 102145438 A CN102145438 A CN 102145438A
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- cylindrical shell
- pylon
- doorframe
- welding
- gripper shoe
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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 big 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 portion's cover in the wind-power electricity generation, and it comprises parts such as multistage cylindrical shell, flange, foundation ring, doorframe, interior annex.In the pylon manufacture process, the assembling welding or the like of assembling welding, interior annex and cylindrical shell of assembling welding, doorframe and pylon bottom cylindrical shell of assembling welding, foundation ring and the flange of the assembling 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 following tower drum flange flatness was bigger, and tower drum flange is nearer down owing to be positioned at doorframe distance on the cylindrical shell of pylon bottom, made the flatness control difficulty more of tower drum flange down.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: earlier with the doorframe of cylindrical shell bottom the assembly welding pylon again behind pylon bottom cylindrical shell and the following tower drum flange assembly welding.If adopt this manufacture craft, because the assembly welding spacing of following tower drum flange and doorframe has only 600mm, the cylindrical shell thickness of slab is 54mm, and doorframe thickness is 200mm, and the doorframe welding capacity is big, preheating and interlayer temperature are higher, to cause the local deformation of pylon bottom, doorframe place cylindrical shell after the welding, and cause down the flatness of 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 of tower drum flange of will descending and be controlled at the assemble method of 2mm with interior wind power tower doorframe.
In order to achieve the above object, technical scheme of the present invention has provided a kind of wind power tower doorframe assemble method, 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 installs the gripper shoe schematic diagram for pylon bottom cylindrical shell among the present invention;
Fig. 2 moves back the segmentation and the welding sequence schematic diagram of the welding of arc method for doorframe adopts symmetrical chiasma;
Fig. 3 is the welding sequence schematic diagram of each layer in each section weld seam among Fig. 2.
The specific embodiment
Enumerate a preferable implementation method of the present invention below in conjunction with accompanying drawing.
In conjunction with Fig. 1, the invention provides a kind of wind power tower doorframe assemble method, the steps include:
In this step, welding adopts symmetrical chiasma to move back the arc method, introduces this worker method in detail 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 promptly arranged, and during if any three welders, then the weld seam at three relative position places partners, promptly have 4 pairs, concrete grouping is decided according to welder's quantity of reality.
During welding,, intersect symmetry by two welders the 1st assembly welding seam is welded, weld the 2nd to 6 group subsequently successively simultaneously according to order as shown in Figure 2.
In order to make welding more firm, need the welding multilayer usually, need inside and outside alternately welding during welding.As shown in Figure 3, need 38 layers of welding in the present embodiment altogether, welding sequence as shown in Figure 3, weld the three layers of weld seam in the outside between pylon bottom cylindrical shell 1 and the doorframe 3 earlier, weld the three layers of weld seam in inboard between pylon bottom cylindrical shell 1 and the doorframe 3 again, again then three layers in the welding outside, and the like until with 38 layers all welding finish, every layer thickness is controlled at 3-4mm.
In conjunction with Fig. 2 and Fig. 3, during welding, after all welding finishes with the oval weld seam as shown in Figure 2 of each layer, descend the welding of one deck again.Such as for the 1st layer of weld seam among Fig. 3, after two welders generals of needs, 12 sections whole welding as shown in Figure 2 finish, begin to weld the 2nd layer of weld seam among Fig. 3 again, which floor is so analogized for other.
When the job site owing to have 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, up to recovering welding.After welding finishes, carry out after-baking (adopting inside and outside two thermocouples to carry out temperature control) immediately.
Claims (4)
1. a wind power tower doorframe assemble method the steps include:
Step 1, with the end to end successively basic pylon that is assembled into of multistage cylindrical shell;
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 the top and the below for the treatment of position of opening at pylon bottom cylindrical shell (1) and place a gripper shoe (2) respectively at least, the inwall of the outer rim of gripper shoe (2) and pylon bottom cylindrical shell (1) is fitted mutually, thereby makes gripper shoe (2) support forming around the pylon bottom cylindrical shell (1);
Step 4, upward 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 following tower drum flange (4) welding, postwelding descends the size reinspection of tower drum flange (4).
2. a kind of wind power tower doorframe assemble method as claimed in claim 1, it is characterized in that: be provided with at least one drift on the outer rim of described gripper shoe (2), drift props up the inwall of described pylon bottom cylindrical shell (1) pylon bottom cylindrical shell (1) is proofreaied and correct to cylindrical.
3. a kind of wind power tower doorframe assemble method 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 wind power tower doorframe assemble method as claimed in claim 1 is characterized in that: welding described in the step 4 adopts 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 true CN102145438A (en) | 2011-08-10 |
| CN102145438B CN102145438B (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110069326 Active CN102145438B (en) | 2011-03-22 | 2011-03-22 | Assembling method of doorframe of wind power tower |
Country Status (1)
| Country | Link |
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| CN (1) | CN102145438B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405597A (en) * | 2014-10-15 | 2015-03-11 | 新疆金风科技股份有限公司 | Door frame of fan tower, door frame unit, production method of door frame and fan tower |
| CN105397246A (en) * | 2015-12-24 | 2016-03-16 | 哈尔滨锅炉厂有限责任公司 | Thin-wall stainless steel plate spliced square-opening pipe welding port deformation preventing method |
| CN106002008A (en) * | 2016-06-07 | 2016-10-12 | 中国水电四局(酒泉)新能源装备有限公司 | Method for welding door frame of ultra-low-temperature high-power wind turbine tower |
| 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 |
| CN107511601A (en) * | 2017-10-13 | 2017-12-26 | 江苏中车电机有限公司 | A kind of welding procedure for reducing pylon side flange and window welding deformation |
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 | 维斯塔斯风力系统有限公司 | 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 active Active
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 | 维斯塔斯风力系统有限公司 | A tower part for a wind turbine, an aperture cover system, a method for manufacturing a tower part and uses thereof |
Non-Patent Citations (1)
| Title |
|---|
| 车建设: "风力发电塔筒中Q345E钢的焊接", 《甘肃科技》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405597A (en) * | 2014-10-15 | 2015-03-11 | 新疆金风科技股份有限公司 | Door frame of fan tower, door frame unit, production method of door frame and fan tower |
| CN105397246A (en) * | 2015-12-24 | 2016-03-16 | 哈尔滨锅炉厂有限责任公司 | Thin-wall stainless steel plate spliced square-opening pipe welding port deformation preventing method |
| 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 |
| CN106002008A (en) * | 2016-06-07 | 2016-10-12 | 中国水电四局(酒泉)新能源装备有限公司 | Method for welding door frame of ultra-low-temperature high-power wind turbine tower |
| 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 |
| CN107511601A (en) * | 2017-10-13 | 2017-12-26 | 江苏中车电机有限公司 | A kind of welding procedure for reducing pylon side flange and window welding deformation |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102145438B (en) | 2013-04-03 |
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