CN202012226U - Narrow base tower - Google Patents
Narrow base tower Download PDFInfo
- Publication number
- CN202012226U CN202012226U CN2011200670096U CN201120067009U CN202012226U CN 202012226 U CN202012226 U CN 202012226U CN 2011200670096 U CN2011200670096 U CN 2011200670096U CN 201120067009 U CN201120067009 U CN 201120067009U CN 202012226 U CN202012226 U CN 202012226U
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- tower
- arm
- cross
- iron tower
- basic iron
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Abstract
The utility model discloses a narrow base tower, including a tower head, a tower body and the tower legs on the bottom of the tower body; the tower head includes a cross-arm arranged on two sides of the tower body and a ground wire top carriage on the top of the tower body; the ground wires are suspended on two end parts of the ground wire top carriage; a V-shaped insulator chain is provided on the cross-arm; and a conductor is suspended on the V-shaped insulator chain. By employing the utility model, the conductor windage yaw is effectively limited, the tower head size is shortened, the tower height is reduced, the structure is more compact, and additionally, the line width on the corridor is decreased, the line lightning prevention reliability is improved, the environmental pollution is reduced, the working load of the operating personnel in daily patrol is greatly decreased, and the operating cost is easy to be reduced.
Description
Technical field
The utility model relates to a kind of iron tower of power transmission line, relates in particular to a kind of narrow basic iron tower.
Background technology
The trans-regional transmission of electricity of electrical network at present mainly relies on 220 KVs, is being subjected to many-sided restrictions such as technology, environmental protection, land resources aspect the raising conveying capacity.Big 220 kilovolts of transmission lines of electricity of lead multiloop can adapt to 200 to 300 kilometers remote big capacity and send, but since its existence to take the corridor too much, wide, problems such as highly high, load is big, complex structure, steel quantity consumption and investment height cause various contradictions more and more outstanding.In addition, original iron tower generally adopts the hanging wire mode of I type insulator string, and the tower head size is bigger, and this makes that the lightning protection angle of iron tower is bigger, is unfavorable for the lightning protection of circuit, and operations staff's daily tour and maintenance are brought big inconvenience.
Therefore, present stage engineered paths restricted, most of transmission line of electricity sets up the land used anxiety, under the very narrow situation in circuit corridor, adopts conventional tower can't satisfy the requirement of the trans-regional transmission of electricity of electrical network.
Summary of the invention
The utility model embodiment technical problem to be solved is, the narrow basic iron tower that a kind of mechanism is simple, the circuit corridor takies less, lightning protection effect is good is provided.
In order to solve the problems of the technologies described above, the utility model provides a kind of narrow basic iron tower, comprise tower head, body of the tower and be located at the tower leg of described body of the tower bottom, described tower head comprises the cross-arm of being located at described body of the tower both sides and is located at the ground wire upper frame at described body of the tower top, described ground wire upper frame both ends have hung ground wire, described cross-arm is provided with the V-type insulator string, and described V-type insulator string has hung lead.
As the improvement of such scheme, described narrow basic iron tower is provided with six layers of cross-arm; Described cross-arm is symmetrically distributed in described body of the tower both sides.
As the improvement of such scheme, described V-type insulator string comprises left substring and right substring, and described left substring and right substring string length are 3.5 ~ 4.1m; Angle between described left substring and right substring is 46 ° ~ 57 °.
As the improvement of such scheme, described body of the tower adopts the oblique material of forked type to arrange; Described tower leg adopts the oblique material of K type to arrange.
As the improvement of such scheme, described narrow basic iron tower adopts high strength steel pipe to make.
The enforcement the beneficial effects of the utility model are: hang lead by adopting the V-type insulator string, and the long and angle of the string of setting the V-type insulator string, limited the windage yaw of lead effectively, satisfying under the situation about requiring aspect electric, make the hitch point of lead near body of the tower, to highly reduce between cross-arm width and every layer of cross-arm to greatest extent, thereby dwindled the tower head size, structure is more compact.On the whole, the size of tower head reduces, tower height also can decrease, iron tower is more slender attractive in appearance, and column foot takes up an area of and the circuit corridor takies width thereby further reduced, and reduces to minimum to the electromagnetic effect of surrounding area, the tower head size reduces simultaneously, raw material also can reduce thereupon, and this has alleviated greatly to the influence of environment and pollution, have improved the convenience of daily tour of operations staff and maintenance.In addition; the hitch point of lead is near body of the tower; and the hitch point of ground wire is constant; this is equivalent to the ground wire shielding angle is increased; improve the reliability of line thunder protection, reduced " lightning stroke trip " accident, increased the circuit operational reliability; alleviated the daily tour workload of operations staff greatly, of great advantage to reducing circuit running cost.
Description of drawings
Fig. 1 is the structural representation of existing narrow basic iron tower;
Fig. 2 is the structural representation of the narrow basic iron tower of the utility model.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, the utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, original iron tower generally adopts the hanging wire mode of I type insulator string.The appearance and size of iron tower depends primarily on the factor of lead, the electric aspect of ground wire, and iron tower appearance and size mainly comprises horizontal range etc. between the vertical distance, double earth wire hanging point of 11 of iron tower height, cross-arm 11 length, levels cross-arm, therefore adopt the hanging wire mode of I type insulator string 111, require tower head 1 size bigger, tower height is generally 58 ~ 70m, levels cross-arm 11 vertical distances 7 ~ 7.5 m, cross-arm 11 width 6.5 ~ 7.5 m, column foot takes up an area of 64 ~ 110.25 ㎡, the long 3.5 ~ 4.7m of I type insulator string 111 strings.
As shown in Figure 2, a kind of narrow basic iron tower of the utility model, the tower leg 3 that it comprises tower head 1, body of the tower 2 and is located at described body of the tower 2 bottoms, described tower head 1 comprises the cross-arm 11 of being located at described body of the tower 2 both sides and the ground wire upper frame 12 of being located at described body of the tower 2 tops, described ground wire upper frame 12 both ends have hung ground wire, described cross-arm 11 is provided with V-type insulator string 111, and described V-type insulator string 111 has hung lead.Need to prove that described cross-arm 11 has six layers, and be symmetrically distributed in described body of the tower 2 both sides.
Owing to adopted V-type insulator string 111 to hang lead, limited the windage yaw of lead effectively, satisfying under the situation about requiring aspect electric, make the hitch point of lead more near body of the tower 2, to greatest extent cross-arm 11 width and 11 distances of every layer of cross-arm are reduced, thereby dwindled tower head 1 size, structure is more compact.Through adopting the hanging wire mode of V-type insulator string, cross-arm 11 width are reduced to 6.2 ~ 7.3m, levels cross-arm 11 vertical distances are 6.9 m, compare with the hanging wire mode of I type insulator string, cross-arm 11 width have reduced 0.3m, and lower floor's cross-arm 11 vertical distances have reduced 0.6m, owing to have six layers of cross-arm 11, on the whole, this makes tower height decrease 2 ~ 3m, and iron tower is more slender attractive in appearance.Simultaneously, tower head 1 size reduces the also corresponding reduction of iron tower weight and required raw material, column foot takes up an area of can be reduced to 25 ㎡, make the circuit corridor take the corresponding minimizing of width, the electromagnetic effect of surrounding area is reduced to minimum, alleviated influence and the pollution of iron tower greatly environment.In addition; the hitch point of lead is near body of the tower 2; and the hitch point of ground wire is constant; this is equivalent to the ground wire shielding angle is increased; improve the reliability of line thunder protection, reduced " lightning stroke trip " accident, increased the circuit operational reliability; alleviated the daily tour workload of operations staff greatly, of great advantage to reducing circuit running cost.
More preferably, described V-type insulator string 111 comprises left substring 1111 and right substring 1112, and described left substring 1111 and right substring 1112 string length are 3.5 ~ 4.1m.In addition, the angle that described left substring 1111 and right substring are 1112 must just can be avoided the insulator string pressurized more than or equal to the maximum angle of wind deflection of lead, and preferably, the angle that described left substring 1111 and right substring are 1112 is 46 ° ~ 57 °.Need to prove that described left substring 1111 can be not isometric with right substring 1112.
More preferably, described body of the tower 2 adopts the oblique material of forked type to arrange, described tower leg 3 adopts the oblique material of K type to arrange.Need to prove that the oblique material of fork-shaped is applicable to stressed bigger iron tower, the oblique material of K type then is applicable to the stressed an iron rake with three to six teeth that body of the tower possesses big rigidity that reaches more greatly.
More preferably, described narrow basic iron tower adopts high strength steel pipe to make.Need to prove that the own wt of iron tower and the weight of required carrying are very big, and be built in the abominable mountain area of environment usually, the depression is subjected to the influence of natural environment very big, therefore selects for use high strength steel pipe to make, can prolong the life-span of iron tower, reduce the speed that iron tower damages.
As from the foregoing, implement the utility model and the iron tower height more efficiently can be reduced,, improved the circuit operational reliability, both reduced operations staff's working strength effectively, also increased the convenience of operating maintenance by increasing the lightning protection angle.Simultaneously because the V-type insulator string that present technique adopts hangs lead, limited the lead windage yaw, reduced the circuit corridor, reduce to minimum to the electromagnetic effect of surrounding area, embodied ultra-high-tension power transmission line " people-oriented, be this with the environment, attractive in appearance with the city be basis " design concept, the area construction ultra-high-tension power transmission line intensive to urban population, that building is intensive, the road dense degree is high provides template preferably.
The above is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also are considered as protection domain of the present utility model.
Claims (5)
1. one kind narrow basic iron tower, it is characterized in that, described narrow basic iron tower comprises tower head, body of the tower and is located at the tower leg of described body of the tower bottom, described tower head comprises the cross-arm of being located at described body of the tower both sides and is located at the ground wire upper frame at described body of the tower top, described ground wire upper frame both ends have hung ground wire, described cross-arm is provided with the V-type insulator string, and described V-type insulator string has hung lead.
2. narrow basic iron tower as claimed in claim 1 is characterized in that, comprising: described narrow basic iron tower is provided with six layers of cross-arm; Described cross-arm is symmetrically distributed in described body of the tower both sides.
3. narrow basic iron tower as claimed in claim 1 is characterized in that, comprising: described V-type insulator string comprises left substring and right substring, and described left substring and right substring string length are 3.5 ~ 4.1m; Angle between described left substring and right substring is 46 ° ~ 57 °.
4. narrow basic iron tower as claimed in claim 1 is characterized in that, comprising: described body of the tower adopts the oblique material of forked type to arrange; Described tower leg adopts the oblique material of K type to arrange.
5. narrow basic iron tower as claimed in claim 1 is characterized in that, described narrow basic iron tower adopts high strength steel pipe to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200670096U CN202012226U (en) | 2011-03-15 | 2011-03-15 | Narrow base tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200670096U CN202012226U (en) | 2011-03-15 | 2011-03-15 | Narrow base tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202012226U true CN202012226U (en) | 2011-10-19 |
Family
ID=44782837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200670096U Expired - Lifetime CN202012226U (en) | 2011-03-15 | 2011-03-15 | Narrow base tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202012226U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046791A (en) * | 2012-11-29 | 2013-04-17 | 安徽华电工程咨询设计有限公司 | Transmission line tangent tower using double-loop cable T guide |
| CN103174321A (en) * | 2013-03-14 | 2013-06-26 | 江苏神马电力股份有限公司 | Compound tower for power grid power transmission line and compound cross arm structure thereof |
-
2011
- 2011-03-15 CN CN2011200670096U patent/CN202012226U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046791A (en) * | 2012-11-29 | 2013-04-17 | 安徽华电工程咨询设计有限公司 | Transmission line tangent tower using double-loop cable T guide |
| CN103046791B (en) * | 2012-11-29 | 2015-06-03 | 安徽华电工程咨询设计有限公司 | Transmission line tangent tower guided by double-loop cable T |
| CN103174321A (en) * | 2013-03-14 | 2013-06-26 | 江苏神马电力股份有限公司 | Compound tower for power grid power transmission line and compound cross arm structure thereof |
| CN103174321B (en) * | 2013-03-14 | 2015-11-25 | 江苏神马电力股份有限公司 | Power grid transmission line complex pole tower and compound cross-arm structure thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111019 |