CN202167810U - F-shaped tangent tower of ultra-high voltage direct current transmission line - Google Patents
F-shaped tangent tower of ultra-high voltage direct current transmission line Download PDFInfo
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- CN202167810U CN202167810U CN2011203048926U CN201120304892U CN202167810U CN 202167810 U CN202167810 U CN 202167810U CN 2011203048926 U CN2011203048926 U CN 2011203048926U CN 201120304892 U CN201120304892 U CN 201120304892U CN 202167810 U CN202167810 U CN 202167810U
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Abstract
The utility model provides an F-shaped tangent tower of an ultra-high voltage direct current transmission line, which comprises a tower head, a tower body and a tower leg. The F-shaped tangent tower further comprises an upper cross arm and a lower cross arm, the upper cross arm is located at the top of the tower head and comprises a ground wire cross arm for hanging a ground wire and a lead cross arm for hanging a transmission lead, and the lower cross arm is located in the middle of the tower head or at the lower portion of the tower head and is used for hanging the transmission lead. The upper cross arm and the lower cross arm are parallelly arranged on the same side of the tower body, and the upper cross arm, the lower cross arm and the tower body are all in an F shape. The F-shaped tangent tower of the ultra-high voltage direct current transmission line can save line channels, effectively reduces demolition quantity of houses and has good economic and social benefits.
Description
Technical field
The utility model relates to extra-high voltage direct-current overhead power transmission field, particularly a kind of extra high voltage direct current transmission line F type tangent tower.
Background technology
Along with maintaining sustained and rapid growth of China's economy, more and more vigorous to the demand of electric power, require further to accelerate west area power supply exploitation, strengthen the dynamics of transferring electricity from the west to the east, realize that the western and eastern's initiative and advantages of the localities are complementary, optimize power supply and electric network composition.Also press for simultaneously and progressively improve transmission line capacity and electric pressure, the UHV transmission line engineering is built in development.
Present extra high voltage direct current transmission line is ± the 800kV extra high voltage direct current transmission line, the conventional horizontal type tangent tower that adopts, and the two-stage lead all adopts horizontal symmetrical to arrange, and its advantage is that tower bar structural configuration is simple, circuit body cost is low, operating experience is ripe.Because the general non-constant width of horizontal range between its both sides lead, so its corridor broad that takies.The gallery problem has become the matter of utmost importance of restriction power network development for transmission line, and well-known, the Yangtze River Delta Area is the most economically developed area of China, and industrial enterprise and house owed by a citizen are numerous.
The tangent tower of conventional structure is as shown in Figure 1, comprises lead cross-arm 1, ground wire cross-arm 2, body of the tower 3 and tower head 4.Because lead cross-arm 1 be horizontal, the non-constant width of the horizontal range between lead causes that floor space is big, cost is high.
At present domesticly have ± the F type tangent tower of 500kV DC line, but the electric and burden requirement of prior art can't satisfy right ± 800kV extra high voltage direct current transmission line iron tower.
Therefore, this area press for exploitation and be applicable to ± the 800kV extra high voltage direct current transmission line, both guaranteed UHV transmission line engineering safety operation, the tangent tower of economical rationality again.
Summary of the invention
The purpose of the utility model provide a kind of being applicable to ± 800kV extra high voltage direct current transmission line, both guaranteed UHV transmission line engineering safety operation, the tangent tower of economical rationality again.
The utility model provides a kind of extra high voltage direct current transmission line F type tangent tower, and the tower body of said tangent tower comprises tower head, body of the tower and tower leg, wherein:
Described F type tangent tower comprises cross-arm, following cross-arm;
Described upward cross-arm is positioned at the top of said tower head, and the said cross-arm of going up comprises the ground wire cross-arm and the lead cross-arm that hangs transmission pressure that is used to hang ground wire;
Described cross-arm down is positioned at the middle part or the bottom of said tower head, is used to hang transmission pressure;
Described upward cross-arm and following cross-arm are arranged at the same side of tower body abreast; With
Described cross-arm, following cross-arm and the tower body gone up is the F type.
In another preference, the size of said tower body is enough big to bear the big load of UHV transmission line.
In another preference, the described lead cross-arm of going up cross-arm hangs a utmost point transmission pressure, and described another utmost point transmission pressure of cross-arm suspension down makes the two poles of the earth transmission pressure be vertical arrangement.
In another preference, the described lead cross-arm suspension negative pole transmission pressure of going up cross-arm, described cross-arm down hangs anodal transmission pressure.
In another preference, the distance on following transmission pressure that cross-arm hung and ground is generally at least 10 meters, preferably at least 15 meters, more preferably is at least 20 meters.
Preferably, the distance on following transmission pressure that cross-arm hung and ground is 19 ± 5 meters, and tower body transmission line width of corridor is 40 ± 8m.
More preferably, the distance on following transmission pressure that cross-arm hung and ground is 22 ± 5 meters, and tower body transmission line width of corridor is 40 ± 8m.
In another preference, the described length that goes up cross-arm is 15-25 rice;
In another preference, the described length of cross-arm down is 18-28 rice.
In another preference, said extra high voltage direct current transmission line is ± the 800kV extra high voltage direct current transmission line.
In another preference, said tower body is the steel construction tower body.
Preferably, the material of said steel comprises Q420 high-strength steel, Q345 steel and Q235 steel.
Should be understood that the size in the literary composition only is a demonstration to the utility model, is not to be the qualification to the utility model scope.In in the utility model scope, above-mentioned each technical characterictic of the utility model and hereinafter can mutual combination between specifically described each technical characterictic in (like embodiment), thus constitute new or optimized technical scheme.As space is limited, this tired no longer one by one stating.
Description of drawings
Fig. 1 is the structural representation of prior art extra high voltage direct current transmission line horizontal linear tower;
Fig. 2 is the structural representation of an embodiment of the utility model extra high voltage direct current transmission line F type tangent tower.
Embodiment
The utility model people is through extensive and deep research; Researched and developed a kind of extra high voltage direct current transmission line F type tangent tower first, can under the prerequisite that guarantees the operation of extra high voltage direct current transmission line engineering safety, consider economical again; Practice thrift steel, save line channel.Accomplished the utility model on this basis.
Term
As used herein, term " extra high voltage direct current transmission line " refers at least ± DC power transmission line of 660kV, for example ± 800kV, ± the 1100kV DC power transmission line.
Below will combine accompanying drawing that the preferred embodiment of the utility model is elaborated, so that clearer purpose, characteristics and the advantage of understanding the utility model.The concrete size that should be understood that the utility model can be changed and regulate according to actual conditions (like landform) etc., so the size that hereinafter provides only is a kind of preferred size, is not to be the qualification to the utility model scope.
Referring to Fig. 2.The F type tangent tower of the extra-high voltage direct-current circuit in the instance of the utility model comprises: tower head 3, body of the tower 4 and tower leg 5, and wherein, F type tangent tower comprises cross-arm 11, following cross-arm 12; Last cross-arm 11 is positioned at the top of said tower head 3, and upward cross-arm 11 comprises the ground wire cross-arm and the lead cross-arm that hangs transmission pressure that is used to hang ground wire; Following cross-arm 12 is positioned at the middle part or the bottom of said tower head, is used to hang transmission pressure; Last cross-arm 11 and following cross-arm 12 are arranged at the same side of tower body abreast; Be the F type with described cross-arm 11, following cross-arm 12 and the tower body gone up.
The size of tower body is enough big to bear the big load of UHV transmission line.
The lead cross-arm of last cross-arm 11 hangs a utmost point transmission pressure, and following cross-arm 12 another utmost point transmission pressures of suspension make the two poles of the earth transmission pressure be vertical arrangement.
Usually, the transmission pressure that hung of following cross-arm 12 and the distance on ground are generally at least 10 meters.
Usually, the length of last cross-arm 11 is 15-25 rice;
Usually, the length of following cross-arm 12 is 18-28 rice.
This F type tangent tower is applied to ± the 800kV extra high voltage direct current transmission line.
Tower body is the steel construction tower body, can adopt Q420 high-strength steel, Q345 steel and Q235 steel.
The utility model ± 800kV extra high voltage direct current transmission line F type tangent tower major advantage comprises:
(a) save line channel, reduce housing demolition, save the steel use amount, favorable economic benefit and social benefit are arranged;
(b) F type tangent tower is rational in infrastructure, and the stress-bearing capability of iron tower and structural rigidity can adapt to ± load and the loading characteristic of 800kV extra-high voltage direct-current circuit.
In sum; The extra high voltage direct current transmission line F type tangent tower of the utility model has increased the stress-bearing capability and the structural rigidity of iron tower; Can adapt to ± load and the loading characteristic of 800kV extra-high voltage direct-current circuit; Can under the prerequisite that guarantees the operation of extra high voltage direct current transmission line engineering safety, make the line design economical rationality.
Embodiment 1
A certain test ± the kV800 extra high voltage direct current transmission line in, adopt the F type tangent tower of structure shown in Figure 2.Wherein, the length of last cross-arm is 21 ± 5 meters, and the length of following cross-arm is 23 ± 5 meters, and the tower body height is 83 ± 20 meters.The lead cross-arm suspension negative pole transmission pressure of last cross-arm 11, the anodal transmission pressure of following cross-arm 12 suspensions.According to ground total electric field limit value requirement, when the polar conductor minimum was got 19 ± 2 meters to ground level, width of corridor was about 40 meters.
Empirical tests, the 76m width of corridor when the F type tangent tower of present embodiment is horizontal than lead has reduced about 36m, has reduced the housing demolition amount effectively.
All documents in that the utility model is mentioned are all quoted as a reference in this application, are just quoted such as a reference separately as each piece document.Should be understood that in addition after having read the above-mentioned teachings of the utility model, those skilled in the art can do various changes or modification to the utility model, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Claims (9)
1. the F type tangent tower of an extra-high voltage direct-current circuit, the tower body of said tangent tower comprises tower head, body of the tower and tower leg, it is characterized in that:
Described F type tangent tower comprises cross-arm, following cross-arm;
Described upward cross-arm is positioned at the top of said tower head, and the said cross-arm of going up comprises the ground wire cross-arm and the lead cross-arm that hangs transmission pressure that is used to hang ground wire;
Described cross-arm down is positioned at the middle part or the bottom of said tower head, is used to hang transmission pressure;
Described upward cross-arm and following cross-arm are arranged at the same side of tower body abreast; With
Described cross-arm, following cross-arm and the tower body gone up is the F type.
2. tangent tower according to claim 1 is characterized in that, the size of said tower body is enough big to bear the big load of UHV transmission line.
3. tangent tower according to claim 1 is characterized in that, the described lead cross-arm of going up cross-arm hangs a utmost point transmission pressure, and described another utmost point transmission pressure of cross-arm suspension down makes the two poles of the earth transmission pressure be vertical arrangement.
4. tangent tower according to claim 3 is characterized in that, the described negative utmost point transmission pressure of lead cross-arm suspension of going up cross-arm, and described cross-arm down hangs anodal transmission pressure.
5. tangent tower according to claim 1 is characterized in that, the described length that goes up cross-arm is 10-30 rice.
6. tangent tower according to claim 1 is characterized in that, the described length of cross-arm down is 15-35 rice.
7. tangent tower according to claim 1 is characterized in that, the distance on following transmission pressure that cross-arm hung and ground is generally at least 10 meters.
8. tangent tower according to claim 1 is characterized in that, said extra high voltage direct current transmission line is ± the 800kV extra high voltage direct current transmission line.
9. tangent tower according to claim 1 is characterized in that, said tower body is the steel construction tower body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203048926U CN202167810U (en) | 2011-08-19 | 2011-08-19 | F-shaped tangent tower of ultra-high voltage direct current transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203048926U CN202167810U (en) | 2011-08-19 | 2011-08-19 | F-shaped tangent tower of ultra-high voltage direct current transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202167810U true CN202167810U (en) | 2012-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203048926U Expired - Lifetime CN202167810U (en) | 2011-08-19 | 2011-08-19 | F-shaped tangent tower of ultra-high voltage direct current transmission line |
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| Country | Link |
|---|---|
| CN (1) | CN202167810U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105429083A (en) * | 2015-12-31 | 2016-03-23 | 国网浙江奉化市供电公司 | Double-eccentric cross arm |
-
2011
- 2011-08-19 CN CN2011203048926U patent/CN202167810U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105429083A (en) * | 2015-12-31 | 2016-03-23 | 国网浙江奉化市供电公司 | Double-eccentric cross arm |
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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: 200063 Wuning Road, Shanghai, No. 409, No. Patentee after: Co., Ltd of Huabei Power Design Inst., China Power Engineering Consulting Group Patentee after: China Electric Power Research Institute Patentee after: Zhejiang Electric Power Design Institute Address before: 200063 Wuning Road, Shanghai, No. 409, No. Patentee before: Huabei Power Design Inst., China Power Engineering Consulting Group Patentee before: China Electric Power Research Institute Patentee before: Zhejiang Electric Power Design Institute |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120314 |
|
| CX01 | Expiry of patent term |