CN202090659U - Flange and flange component used for AD (alternating current) EHV (extra-high voltage) steel tubular tower - Google Patents
Flange and flange component used for AD (alternating current) EHV (extra-high voltage) steel tubular tower Download PDFInfo
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- CN202090659U CN202090659U CN 201020690376 CN201020690376U CN202090659U CN 202090659 U CN202090659 U CN 202090659U CN 201020690376 CN201020690376 CN 201020690376 CN 201020690376 U CN201020690376 U CN 201020690376U CN 202090659 U CN202090659 U CN 202090659U
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- high voltage
- neck
- cylindrical hole
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 51
- 239000010959 steel Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 abstract description 11
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 5
- 238000005242 forging Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000036244 malformation Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model belongs to the field of power equipment, and discloses a flange and a flange component which are used for an AD (alternating current) EHV (extra-high voltage) steel tubular tower. The flange comprises a circular ring-shaped flange plate and a hollow neck part, wherein the circular ring-shaped flange plate is provided with a plurality of bolt holes; the hollow neck part protrudes upwards from the center of the circular ring-shaped flange plate; the neck part and the flange plate are integrated; the neck part is provided with a cylindrical upper part and a lower part with the thickness reducing gradually from the flange plate to the cylindrical upper part; and the diameter B of a cylindrical hole is the sum of Phi and two times of f, Phi is the external diameter of a steel tube, and f is the gap between the cylindrical hole and the outer wall of the steel tube. The flange component comprises the flange and the steel tube welded with the flange; and the steel tube is inserted into the cylindrical hole and welded with the top of the cylindrical upper part of the neck part of the flange and the bottom of the flange plate, so as to form two butting circumferential welding seams. The flange and the flange component can guarantee the quality of the welding seams, have small prying force after stress, are easy to mount, have higher bearing capacity and larger safety stock and are mainly used for the steel tubular tower in an AD EHV transmission line.
Description
Technical field
The utility model relates to power equipment, relates in particular to a kind of flange and flange assembly that is used for the AC extra high voltage steel tube tower.
Background technology
In recent years, the construction of voltage levels transmission line of electricity is in full swing, and along with the raising of electric pressure, steel tube tower has obtained unprecedented application in ultrahigh voltage alternating current transmission lines.In the ultra-high voltage AC transmission iron tower, adopt steel tube component, not only can reduce the body of the tower wind load, promote bearing capacity, can also fully balancedly bring into play the performance of material, improve stability of structure.The connected mode of steel tube tower master material mainly is that flange connects, and the flange type of attachment is of a great variety, and the application on steel tube tower mainly is that stiffening flange (rigid flange) and no stiffening flange (flexible flange) are arranged.
Fig. 1 and Fig. 2 show the structure that stiffening flange is arranged of prior art.Particularly, Fig. 1 is the longitudinal plan that stiffening flange is arranged, and Fig. 2 is the vertical view that stiffening flange is arranged.As shown in the figure, the circular flange 1 that has stiffening flange to comprise to have a plurality of bolts hole 5 be welded in flange 1 on a plurality of vertical sheet stiffening rib 2, steel pipe 3 welds together with flange 1 and stiffening rib 2.Energetically rigidity of flange is big, is applicable to height and all bigger tower mast structure of load and the main material node of malformation and demanding building of amount of deflection and structure is connected.In addition, there is the stressed rear flange distortion of stiffening flange little, bolt strained simple.Yet because the welding job amount is big when having stiffening flange to install, the welding stress that a large amount of weld jobs form causes the distortion of flange to be difficult to control, stiffening rib the inspection that has hindered weld seam is set, be not easy to guarantee weldquality.
Fig. 3 and Fig. 4 show the structure of the no stiffening flange of prior art.Particularly, Fig. 3 is the longitudinal plan of no stiffening flange, and Fig. 4 is the vertical view of no stiffening flange.As shown in the figure, no stiffening flange only comprises the circular flange 1 with a plurality of bolts hole 5, and steel pipe 3 welds together with flange 1.Therefore, no stiffening flange can reduce the welding job amount, and is easy for installation, and the planeness of flange is also easier to be guaranteed.When require easy construction, construction profile is attractive in appearance and malformation and the less demanding structure of building amount of deflection, can adopt the no stiffening flange of no stiffening rib, flange connects in the steel tubular structure power transformation framework that for example the member slenderness ratio is bigger.Yet, because no stiffening flange do not have stiffening rib, and bolt strained complexity, be easy to generate bigger sled power, make that the flange distortion after stressed is bigger, influence the supporting capacity of flange.
The utility model content
The purpose of this utility model is to provide a kind of downhand welding hubbed flange and corresponding flange assembly of forging, not only weldquality guarantees easily for this flange and flange assembly, the sled power effect of stressed back is very little, install easily, and supporting capacity is very high, safety stock is bigger, can not satisfy steel pipe master material attachment weld quality simultaneously, conveniently installs and have a very technical problem of the requirement of high-bearing capacity thereby solved existing two kinds of flanges.
According to an aspect of the present utility model, a kind of flange that is used for the AC extra high voltage steel tube tower is provided, be used for the steel pipe of described steel tube tower is linked together, described flange comprises the circular flange with a plurality of bolts hole, it is characterized in that, described flange also comprises from the center of described circular flange to the hollow neck of upper process, the internal diameter of described neck is identical with the internal diameter of flange, thereby form a cylindrical hole jointly, described neck and described flange are the structure of one, and described neck has cylindric top and thickness from bottom that flange reduces gradually to cylindric top, the aperture B=φ+2 * f of described cylindrical hole, in the formula: φ is an outer diameter of steel pipes, and f is the gap between described cylindrical hole and the outer wall of steel pipe.
Preferably, when φ≤500mm, f value 1.5mm; When 500mm＜φ≤800mm, f value 2mm; When 800mm＜φ≤1000mm, f value 2.5mm.
Preferably, the thickness S on the cylindric top of described neck is 1.3 times of wall thickness t of described steel pipe.
Preferably, the height H of described flange is: H=Ep * C, C are the height of described flange, and Ep is the flange height coefficient, when C≤40mm, and Ep value 1.85; When 40mm＜C≤50mm, Ep value 1.7; When C＞50mm, Ep value 1.6.
Preferably, the diameter N of the heel of the bottom of described neck on flange is:
N＝〔(H-C)×TAN(15×3.14/180)+S〕×2+B。
Preferably, the thickness of the bottom of described neck reduces to cylindric top linearity from flange.
According to another aspect of the present utility model, a kind of flange assembly that is used for the AC extra high voltage steel tube tower is provided, comprise above-mentioned flange and the steel pipe that welds together with described flange, described steel pipe inserts in the described cylindrical hole and welds together with the top on the cylindric top of the neck of described flange and the bottom of described flange, thereby forms the circumferential weld of two butt joints.
As a kind of new flange pattern, combine the advantage of rigid flange and flexible flange according to forging downhand welding hubbed flange of the present utility model, make the technology of flange self unified, welding quality is guaranteed, also has very high supporting capacity simultaneously.
Description of drawings
Fig. 1 and Fig. 2 show the structure that stiffening flange is arranged of prior art.
Fig. 3 and Fig. 4 show the structure of the no stiffening flange of prior art.
Fig. 5 shows the longitudinal plan according to the flange of the utility model embodiment.
Fig. 6 shows the vertical view according to the flange of the utility model embodiment.
Fig. 7 shows the connection status figure according to the flange assembly of the utility model embodiment.
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 5 shows the longitudinal plan according to the flange of the utility model embodiment.Fig. 6 shows the vertical view according to the flange of the utility model embodiment.As illustrated in Figures 5 and 6, the flange that is used for the AC extra high voltage steel tube tower of the present utility model comprise circular flange 1 with a plurality of bolts hole 5 and at the center of flange 1 to the neck 2 of upper process, the internal diameter of described neck 2 is identical with the internal diameter of flange 1, thereby form a cylindrical hole jointly, described neck 2 is the structure of one with described flange 1, that is, in the manufacturing process of flange, adopt the method for forging to make the flange one-shot forming.
Described neck 2 has the bottom 2-2 that cylindric top 2-1 and thickness reduce to cylindric top 2-1 gradually from flange 1.Although the situation that the thickness of the bottom 2-2 of neck 2 reduces to cylindric top 2-1 linearity from flange 1 has been shown among Fig. 3, the utility model is not limited thereto, and those skilled in the art can expect the shape that other reduces gradually.The neck of the flange that forges is thicker, has higher rigidity and bearing capacity than traditional flange, when stressed the effect of sled power very small, be convenient to site operation and install.
Fig. 7 shows the connection status figure according to the flange assembly of the utility model embodiment.As shown in Figure 7, when described flange is used for steel pipe with steel tube tower and links together, described steel pipe 3 inserts in the described cylindrical hole and welds together with the top of the cylindric top 2-1 of described neck 2 and the bottom of described flange 1, thereby forms the circumferential weld 4 of two butt joints.Therefore, reduced the welding job of stiffening rib weld seam in the conventional rigid flange, be convenient to the detection and the assessment of weldquality, weldquality is guaranteed easily.Preferably, the credit rating of described circumferential weld 4 is a first-order weld.
Respectively will be up and down two flanges and the welding of steel pipe separately with after forming up and down two flange assemblies, again by bolt up and down two flange assemblies link together, thereby will about two steel pipes link together.Preferably, bolt is 8.8 grades of common rough galvanized bolts.
The aperture B=φ+2 * f of described cylindrical hole, in the formula: φ is an outer diameter of steel pipes, f is the gap between described cylindrical hole and the outer wall of steel pipe, so that steel pipe can insert in the described cylindrical hole and weld together with the top on the cylindric top of the neck of described flange and the bottom of described flange.Preferably, when φ≤500mm, f value 1.5mm; When 500mm＜φ≤800mm, f value 2mm; When 800mm＜φ≤1000mm, f value 2.5mm.Described gap is present in the left and right sides among Fig. 5, but because the numerical value of gap f is very little, this gap is not shown obviously among Fig. 5.
Preferably, the thickness S on the cylindric top of described neck is 1.3 times of wall thickness t of described steel pipe.
Preferably, the height H of described flange is: H=Ep * C, C are the height of described flange, and Ep is the flange height coefficient, when C≤40mm, and Ep value 1.85; When 40mm＜C≤50mm, Ep value 1.7; When C＞50mm, Ep value 1.6.
Preferably, the diameter N of the heel of the bottom of described neck on flange is:
N＝〔(H-C)×TAN(15×3.14/180)+S〕×2+B。
Preferably, the material of described steel pipe and flange is Q345.
Combine the advantage of traditional rigid flange and flexible flange according to the butt welding hubbed flange of forging of the present utility model and corresponding flange assembly, it not only has the characteristic that stressed rigidity is big, relative deformation is little of rigid flange, certain safety stock is arranged, also as flexible flange, be convenient to plant produced and site operation simultaneously.
Given is signal and description to its purpose of description of the present utility model, is not to be limit, also is not to be to be limited to the form of being explained to the utility model.For the person of an ordinary skill in the technical field, under the situation that does not depart from the utility model scope and spirit, obviously can make many modifications and modification.Selection and explanation to embodiment, be in order to explain principle of the present utility model and practical application best, the person of an ordinary skill in the technical field can be understood, the utility model can have the various embodiments with various changes that are fit to desired special-purpose.
Claims (7)
1. a flange that is used for the AC extra high voltage steel tube tower is used for the steel pipe of described steel tube tower is linked together, and described flange comprises the circular flange with a plurality of bolts hole, it is characterized in that,
Described flange comprises also that from the center of described circular flange to the hollow neck of upper process, the internal diameter of described neck is identical with the internal diameter of flange, thereby forms a cylindrical hole jointly,
Described neck and described flange are the structure of one, and described neck has cylindric top and thickness from the bottom that flange reduces gradually to cylindric top,
The aperture B=φ+2 * f of described cylindrical hole, in the formula: φ is an outer diameter of steel pipes, f is the gap between described cylindrical hole and the outer wall of steel pipe.
2. the flange that is used for the AC extra high voltage steel tube tower as claimed in claim 1 is characterized in that, when φ≤500mm, and f value 1.5mm; When 500mm＜φ≤800mm, f value 2mm; When 800mm＜φ≤1000mm, f value 2.5mm.
3. the flange that is used for the AC extra high voltage steel tube tower as claimed in claim 2 is characterized in that, the thickness S on the cylindric top of described neck is 1.3 times of wall thickness t of described steel pipe.
4. the flange that is used for the AC extra high voltage steel tube tower as claimed in claim 3 is characterized in that, the height H of described flange is: H=Ep * C, C are the height of described flange, and Ep is the flange height coefficient, when C≤40mm, and Ep value 1.85; When 40mm＜C≤50mm, Ep value 1.7; When C＞50mm, Ep value 1.6.
5. the flange that is used for the AC extra high voltage steel tube tower as claimed in claim 4 is characterized in that, the diameter N of the heel of the bottom of described neck on flange is:
N＝〔(H-C)×TAN(15×3.14/180)+S〕×2+B。
6. as any one the described flange that is used for the AC extra high voltage steel tube tower in the above-mentioned claim, it is characterized in that the thickness of the bottom of described neck reduces to cylindric top linearity from flange.
7. flange assembly that is used for the AC extra high voltage steel tube tower, comprise as any one the described flange in the above-mentioned claim and with as described in the steel pipe that welds together of flange, described steel pipe inserts in the described cylindrical hole and welds together with the top on the cylindric top of the neck of described flange and the bottom of described flange, thereby forms the circumferential weld of two butt joints.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020690376 CN202090659U (en) | 2010-12-30 | 2010-12-30 | Flange and flange component used for AD (alternating current) EHV (extra-high voltage) steel tubular tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020690376 CN202090659U (en) | 2010-12-30 | 2010-12-30 | Flange and flange component used for AD (alternating current) EHV (extra-high voltage) steel tubular tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202090659U true CN202090659U (en) | 2011-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020690376 Expired - Lifetime CN202090659U (en) | 2010-12-30 | 2010-12-30 | Flange and flange component used for AD (alternating current) EHV (extra-high voltage) steel tubular tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202090659U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103031977A (en) * | 2012-12-12 | 2013-04-10 | 中国电力科学研究院 | High-strength flexible hubbed flange structure |
| CN108019084A (en) * | 2017-12-27 | 2018-05-11 | 国网江苏省电力有限公司经济技术研究院 | A kind of power transmission tower abnormity flexible flange connecting node |
-
2010
- 2010-12-30 CN CN 201020690376 patent/CN202090659U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103031977A (en) * | 2012-12-12 | 2013-04-10 | 中国电力科学研究院 | High-strength flexible hubbed flange structure |
| CN103031977B (en) * | 2012-12-12 | 2015-07-08 | 中国电力科学研究院 | High-strength flexible hubbed flange structure |
| CN108019084A (en) * | 2017-12-27 | 2018-05-11 | 国网江苏省电力有限公司经济技术研究院 | A kind of power transmission tower abnormity flexible flange connecting node |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: CHINA POWER ENGINEERING CONSULTING (GROUP) CORPORATION Patentee after: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP Patentee after: Co., Ltd of Northeastern Electric Power Design Institute, China Power Engineering Consulting Group Corporation Patentee after: Co., Ltd of Huabei Power Design Inst., China Power Engineering Consulting Group Patentee after: Co., Ltd of Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Corporation Patentee after: China Power Engineering Consulting Group Southwest Electric Power Design Institute Co., Ltd. Patentee after: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee before: State Grid Corporation of China Patentee before: China Power Engineering Consulting Group Corporation Patentee before: Northwest Electric Power Design Institute, China Power Engineering Consulting Group Corporation Patentee before: Northeastern Electric Power Design Institute, China Power Engineering Consulting Group Corporation Patentee before: Huabei Power Design Inst., China Power Engineering Consulting Group Patentee before: Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Cor Patentee before: Southwest Electric Power Design Institute of China Power Engineering Consulting Group Corporation Patentee before: North China Electric Power Design Institute of China Power Engineering Consulting Group Corporation |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111228 |