CN202090663U - Same-tower and dual-loop straight line steel pipe tower - Google Patents
Same-tower and dual-loop straight line steel pipe tower Download PDFInfo
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- CN202090663U CN202090663U CN 201020690396 CN201020690396U CN202090663U CN 202090663 U CN202090663 U CN 202090663U CN 201020690396 CN201020690396 CN 201020690396 CN 201020690396 U CN201020690396 U CN 201020690396U CN 202090663 U CN202090663 U CN 202090663U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 66
- 239000010959 steel Substances 0.000 title claims abstract description 66
- 239000012212 insulator Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 19
- 241000405070 Percophidae Species 0.000 claims description 6
- 238000005242 forging Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 16
- 238000010276 construction Methods 0.000 abstract description 8
- 229910052742 iron Inorganic materials 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 239000004020 conductor Substances 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 241000883966 Astrophytum capricorne Species 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
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Abstract
The utility model discloses a same-tower and dual-loop straight line steel pipe tower which is characterized by comprising a tower head, a tower neck, a tower body and tower legs from the top to the bottom, wherein the tower head is a drum-shaped tower head which is symmetrically provided with leads; the drum-shaped tower head comprises an upper-layer cross arm, an intermediate-layer cross arm and a lower-layer cross arm; the upper-layer cross arm, the intermediate-layer cross arm and the lower-layer cross arm are duckbilled cross arms; two ends of each cross arm are connected with I-shaped insulator strings; and the steel pipe tower further comprises an official hat-shaped ground wire bracket shared by the upper cross arm. The same-tower and dual-loop straight line steel pipe tower disclosed by the utility model meets the requirements of an electric clearance, the distance to the ground of a lead, an electromagnetic environment of an alternating current 1000kV extra-high voltage same-tower and dual-loop circuit line and other electrical requirements for an iron tower; the same-tower and dual-loop straight line steel pipe tower has the advantages of minimized single-base steel consumption of the iron tower, narrowest corridor occupied by a line, optimal structure safety and better technical economy; and the construction cost of engineering body of the alternating current 1000kV extra-high voltage same-tower and dual-loop circuit line can be effectively reduced.
Description
Technical field
The utility model relates to high voltage iron tower, specifically, relates to a kind of double loop straight line steel tube tower.
Background technology
In order to reduce transmission losses, improve the transmission of electricity quality, reduce the circuit corridor, avoid too much taking land resources, China begins to develop AC extra high voltage (1000kV) common-tower double-return road technology of transmission of electricity at present.AC extra high voltage (1000kV) common-tower double-return road technology of transmission of electricity because its electric pressure height, electromagnetic environment complexity, transmission capacity be big etc. characteristics to cause iron tower list base steel quantity consumption be the several times of conventional high-voltage transmission line towers, therefore how selecting the iron tower form of Technological Economy optimum is one of key factor of engineering constraint cost.
If on existing 500kV and 750kV electric power pylon basis, with its simple amplification, then, take too much land resources because the circuit corridor is bigger, steel quantity consumption is doubled and redoubled, and has greatly improved construction costs.
Therefore, need to propose a kind of new technology and solve above-mentioned any problem of the prior art.
Summary of the invention
A purpose of the present utility model is to overcome at least a portion defective of the prior art, thereby a kind of common-tower double-return road straight line steel tube tower is provided.
Common-tower double-return road straight line steel tube tower according to an embodiment of the present utility model, comprise the tower head, tower neck, body of the tower and the tower leg that connect successively from top to bottom, described tower head is the drum type tower head of symmetric arrangement lead, described drum type tower head comprises upper strata cross-arm, middle level cross-arm and lower floor's cross-arm, described the upper, middle and lower cross-arm is the Duckbill type cross-arm, and the two ends at each cross-arm are connected with " I " type insulator string, and described steel tube tower also comprises and the described shared official's shape for hat ground line bracket of cross-arm of going up.
Preferably, the middle level cross-arm length of described drum type tower head is greater than the length of described upper strata cross-arm and described lower floor cross-arm.
Preferably, described ground wire is spent less than-4 lead lightning protection angle.
Preferably, the last plane of described upper strata cross-arm, middle level cross-arm and lower floor's cross-arm is all adopted and is intersected the arrangement of oblique material.
Preferably, the steel tube component caliber scope that described steel tube tower adopts is 89mm-965mm, and thickness range is 4-22mm.
Preferably, connect by the mode of forging flange between the steel pipe master material of described steel tube tower.
Preferably, the oblique material at place, the change of described tower neck slope adopts the arrangement of the oblique material of intersection.
Preferably, described tower leg has two internodes.
Preferably, the end of described Duckbill type cross-arm is provided with the oblique material of V-type.
Advantage of the present utility model comprises at least one in following: satisfy the requirement of electricity such as the electric clearance that exchanges 1000kV extra-high voltage same tower double circuit route road, lead distance to the ground, electromagnetic environment to iron tower, iron tower list base steel quantity consumption is minimum, the busy line corridor is the narrowest, safety of structure is optimum, can effectively reduce exchanging 1000kV extra-high voltage same tower double circuit route road engineering body cost, have Technological Economy preferably.
With reference to the detailed description of accompanying drawing to exemplary embodiment of the present utility model, it is clear that further feature of the present utility model and advantage thereof will become by following.
Description of drawings
The accompanying drawing that constitutes the part of manual has been described embodiment of the present utility model, and is used to explain principle of the present utility model together with the description.
With reference to accompanying drawing, according to following detailed, can be expressly understood the utility model more, wherein:
Fig. 1 is the diagrammatic sketch that illustrates according to the common-tower double-return road straight line steel tube tower structure of an embodiment of the utility model.
Fig. 2 illustrates the top view according to the upper strata cross-arm of the common-tower double-return road straight line steel tube tower of an embodiment of the utility model.
Fig. 3 illustrates the section along D-D according to the common-tower double-return road straight line steel tube tower of an embodiment of the utility model.
Fig. 4 illustrates the section along C-C according to the common-tower double-return road straight line steel tube tower of an embodiment of the utility model.
Fig. 5 illustrates the section along B-B according to the common-tower double-return road straight line steel tube tower of an embodiment of the utility model.
Fig. 6 illustrates the section along A-A according to the common-tower double-return road straight line steel tube tower of an embodiment of the utility model.
Fig. 7 illustrates the bottom view according to the upper strata cross-arm of the common-tower double-return road straight line steel tube tower of an embodiment of the utility model.
Fig. 8 illustrates the top view according to the middle level cross-arm of the common-tower double-return road straight line steel tube tower of an embodiment of the utility model.
Fig. 9 illustrates the section according to the middle level cross-arm of the common-tower double-return road straight line steel tube tower of an embodiment of the utility model.
Figure 10 illustrates the bottom view according to the middle level cross-arm of the common-tower double-return road straight line steel tube tower of an embodiment of the utility model.
Figure 11 illustrates the top view according to lower floor's cross-arm of the common-tower double-return road straight line steel tube tower of an embodiment of the utility model.
Figure 12 illustrates the section according to lower floor's cross-arm of the common-tower double-return road straight line steel tube tower of an embodiment of the utility model.
Figure 13 illustrates the bottom view according to lower floor's cross-arm of the common-tower double-return road straight line steel tube tower of an embodiment of the utility model.
The specific embodiment
Describe various exemplary embodiment of the present utility model in detail now with reference to accompanying drawing.It should be noted that: unless specify in addition, the parts of setting forth in these embodiments and positioned opposite, numeral expression formula and the numerical value of step do not limit scope of the present utility model.
Below be illustrative to the description only actually of at least one exemplary embodiment, never as any restriction to the utility model and application or use.
May not go through for the known technology of person of ordinary skill in the relevant, method and apparatus, but under suitable situation, described technology, method and apparatus should be regarded as authorizing the part of manual.
In shown here and all examples of discussing, it is exemplary that any occurrence should be construed as merely, rather than as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: represent similar terms in similar label and the letter accompanying drawing below, therefore,, then in accompanying drawing subsequently, do not need it is further discussed in case be defined in a certain Xiang Zaiyi accompanying drawing.
Fig. 1 shows the structure according to the AC extra high voltage common-tower double-return road straight line steel tube tower 101 of an embodiment of the present utility model.
As shown in Figure 1, the AC extra high voltage common-tower double-return road straight line steel tube tower (hereinafter to be referred as steel tube tower) 101 of this embodiment comprises tower head 106, tower neck 105, body of the tower 104 and tower leg 103 successively according to from top to bottom order.These parts of steel tube tower 101 link together, and have constituted an embodiment of the present utility model jointly.
Tower head 106 comprises three layers, i.e. upper strata cross-arm 109, middle level cross-arm 108 and lower floor's cross-arm 107.Satisfying under the prerequisite of ground wire to lead lightning protection angle the drum type tower head form of structure that adopts middle level cross-arm elongation, lower floor's cross-arm to shorten.This arrangement can make the arrangement of lead tight, reduces the tower head size as far as possible, and reduces the material use amount of shaft tower, accomplishes economical rationality.
For AC extra high voltage, the load of steel tube tower is more a lot of greatly than common 500kV circuit, so cross-arm in the present embodiment adopts the Duckbill type cross-arm, thereby increases the load that cross-arm can bear.
As Fig. 8-shown in Figure 10, what show exemplary Duckbill type cross-arm respectively overlooks Figure 110, bottom view 112 and end section Figure 111.Shown in section Figure 111, the end of cross-arm is provided with has the oblique material of V-type of certain altitude (for example 1000mm), thereby avoids the hanging wire angle steel to be subjected to curved control, can reduce the specification of hanging wire angle steel, the outer load of correct guidance lead avoids cross-arm front member stress excessive in the transmission of cross-arm simultaneously.
In addition, as overlooking shown in Figure 110 of cross-arm, as a kind of preferred mode, the oblique material arrangement form of intersection is adopted on the last plane of cross-arm, with respect to horizontal material arrangement form of the prior art, can effectively improve the cross-arm non-deformability, satisfy the requirement of the big load of carrying extra high voltage line.Certainly, on the cross-arm in the plane tiltedly the arrangement of material can also adopt alternate manner according to actual conditions, this knows those skilled in the art.
As a kind of steel tube tower that is used for AC extra high voltage, electric requirement iron tower ground wire adopts negative protection to lead lightning protection angle, if the ground line bracket is set separately, its length of encorbelmenting will be very big, and steel quantity consumption also increases more.Therefore, at the straight line steel tube tower of present embodiment, adopt and the public official's shape for hat ground line bracket of last cross-arm.
As shown in Figure 1, official's shape for hat ground line bracket 114 is arranged on the two ends of cross-arm 109, is tilted to, and is protruding along the direction away from steel tube tower.Ground wire hanging point 113 is arranged on the end of ground line bracket 110, is used for the carry ground wire.For AC extra high voltage, ground wire is preferably less than-4 degree lead lightning protection angle, and promptly for negative shielding angle, the absolute value of this shielding angle is less than 4 degree.
The extra-high voltage engineering is different from general 500kV engineering, needs to consider each links such as design, processing, construction comprehensively.The ground wire rack arrangement mode of official's shape for hat, can avoid the Path of Force Transfer of line bracket upper strata, traditional goat's horn type ground cross-arm succinct inadequately, local structure is handled complicated, the drawback that hoisting difficulty is bigger, can reduce simultaneously the jib-length of unit in charge of construction's construction pole, the convenient construction assembling.
In order to reduce the tower head size as far as possible, six phase conductor (not shown) in two ac circuits hang over the two ends of cross-arm respectively by " I " type insulator string (not shown).As example, a kind of concrete lead set-up mode is:
For example, the wire arrangements of first ac circuit is in the left side of steel tube tower 101, and the wire arrangements of second ac circuit is on the right side of steel tube tower 101.In the three-phase conducting wire of first ac circuit, first phase conductor hangs over the lead hanging point of upper strata cross-arm by " I " type insulator string, second phase conductor hangs over the lead hanging point of middle level cross-arm by " I " type insulator string, and the third phase lead hangs over the lead hanging point of lower floor's cross-arm by " I " type insulator string.
In the three-phase conducting wire of second ac circuit, second phase conductor hangs over the lead hanging point of upper strata cross-arm by " I " type insulator string, the third phase lead hangs over the lead hanging point of middle level cross-arm by " I " type insulator string, and first phase conductor hangs over the lead hanging point of lower floor's cross-arm by " I " type insulator string.
Briefly describe the structure and the advantage of tower head above, specifically described the structure of tower neck and tower leg below.
Steel tube tower connects pattern and generally adopts flange and plate node, so node rigidity must consider that different cloth material patterns also can cause the difference of shaft tower distribution of internal force simultaneously.The utility model adopts the arrangement form of the oblique material of intersection at the place, change slope of tower neck 105, substituted the oblique material arrangement form of " K " of the prior art type, and the further stressed transmission of correct guidance tower neck increases tower neck load-bearing capacity.
In addition, for tower leg, adopt the arrangement form of two internodes, this tower leg structure can effectively reduce the influence of node parasitic moment, avoids steel tube component local distortion, improves the overall load ability.。
At last, for steel tube tower of the present utility model, a kind of preferred steel tube component specification is as follows: the caliber scope is 89mm-965mm, and thickness range is 4mm-22mm.Supporting bolt uses 8.8 grade high-strength bolts.The type of attachment of forging flange 102 is adopted in connection between the steel pipe master material.This steel pipe structure of steel tube tower, the form that simplifies the structure has been optimized structure construction, has reduced the workload of design, transportation, installation, and has effectively saved construction investment, has obtained favorable economic benefit.Certainly, those skilled in the art also can select suitable steel tube component and connected mode according to the needs of actual environment.
Though specific embodiments more of the present utility model are had been described in detail by example, it should be appreciated by those skilled in the art that above example only is in order to describe, rather than in order to limit scope of the present utility model.It should be appreciated by those skilled in the art, can under the situation that does not break away from scope and spirit of the present utility model, above embodiment be made amendment.Scope of the present utility model is limited by claims.
Claims (9)
1. a common-tower double-return road straight line steel tube tower is characterized in that, comprises the tower head, tower neck, body of the tower and the tower leg that connect successively from top to bottom,
Described tower head is the drum type tower head of symmetric arrangement lead, described drum type tower head comprises upper strata cross-arm, middle level cross-arm and the lower floor's cross-arm that is connected to body of the tower, described the upper, middle and lower cross-arm is the Duckbill type cross-arm, and is connected with " I " type insulator string at the two ends of each cross-arm
Described steel tube tower also comprises and the described shared official's shape for hat ground line bracket of cross-arm of going up.
2. according to the common-tower double-return road straight line steel tube tower of claim 1, it is characterized in that the middle level cross-arm length of described drum type tower head is greater than the length of described upper strata cross-arm and described lower floor cross-arm.
3. according to the common-tower double-return road straight line steel tube tower of claim 1, it is characterized in that described ground wire is spent less than-4 lead lightning protection angle.
4. according to the common-tower double-return road straight line steel tube tower of claim 1, it is characterized in that the arrangement of the oblique material of intersection is all adopted on the last plane of described upper strata cross-arm, middle level cross-arm and lower floor's cross-arm.
5. according to the common-tower double-return road straight line steel tube tower of claim 1, it is characterized in that the steel tube component caliber scope that described steel tube tower adopts is 89mm-965mm, thickness range is 4-22mm.
6. according to the common-tower double-return road straight line steel tube tower of claim 1, it is characterized in that, connect by the mode of forging flange between the steel pipe master material of described steel tube tower.
7. according to the common-tower double-return road straight line steel tube tower of claim 1, it is characterized in that the oblique material at the place, change slope of described tower neck adopts the arrangement of the oblique material of intersection.
8. according to the common-tower double-return road straight line steel tube tower of claim 1, it is characterized in that described tower leg has two internodes.
9. according to the common-tower double-return road straight line steel tube tower of claim 1, it is characterized in that the end of described Duckbill type cross-arm is provided with the oblique material of V-type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020690396 CN202090663U (en) | 2010-12-30 | 2010-12-30 | Same-tower and dual-loop straight line steel pipe tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020690396 CN202090663U (en) | 2010-12-30 | 2010-12-30 | Same-tower and dual-loop straight line steel pipe tower |
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| Publication Number | Publication Date |
|---|---|
| CN202090663U true CN202090663U (en) | 2011-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020690396 Expired - Lifetime CN202090663U (en) | 2010-12-30 | 2010-12-30 | Same-tower and dual-loop straight line steel pipe tower |
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| CN (1) | CN202090663U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046794A (en) * | 2012-12-27 | 2013-04-17 | 国核电力规划设计研究院 | Ultrahigh-voltage direct current crank arm tangent tower |
| CN104141405A (en) * | 2013-11-15 | 2014-11-12 | 国家电网公司 | Overhead junction pole for two-circuit overhead transmission line and line junction structure of overhead junction pole |
| CN105484551A (en) * | 2016-01-24 | 2016-04-13 | 常熟市谷雷特机械产品设计有限公司 | Iron tower for erecting high voltage transmission line |
-
2010
- 2010-12-30 CN CN 201020690396 patent/CN202090663U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046794A (en) * | 2012-12-27 | 2013-04-17 | 国核电力规划设计研究院 | Ultrahigh-voltage direct current crank arm tangent tower |
| CN104141405A (en) * | 2013-11-15 | 2014-11-12 | 国家电网公司 | Overhead junction pole for two-circuit overhead transmission line and line junction structure of overhead junction pole |
| CN105484551A (en) * | 2016-01-24 | 2016-04-13 | 常熟市谷雷特机械产品设计有限公司 | Iron tower for erecting high voltage transmission line |
| CN105484551B (en) * | 2016-01-24 | 2017-12-05 | 浙江江山博奥电气有限公司 | A kind of steel tower for being used to set up high voltage electricity transmission conductive wire |
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Legal Events
| Date | Code | Title | Description |
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| 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: Co., Ltd of Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Corporation 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: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP 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: Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Cor 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: Northwest Electric Power Design Institute, China Power Engineering Consulting Group Corporation 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 |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111228 |