CN202249079U - Tower frame applied to extra-high voltage direct current transmission line and grounding line arranged in same tower - Google Patents
Tower frame applied to extra-high voltage direct current transmission line and grounding line arranged in same tower Download PDFInfo
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- CN202249079U CN202249079U CN2011203057304U CN201120305730U CN202249079U CN 202249079 U CN202249079 U CN 202249079U CN 2011203057304 U CN2011203057304 U CN 2011203057304U CN 201120305730 U CN201120305730 U CN 201120305730U CN 202249079 U CN202249079 U CN 202249079U
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Abstract
The utility model discloses a tower frame applied to an extra-high voltage direct current transmission line and a grounding line which are arranged in the same tower. The tower frame comprises a guide line cross arm, a ground wire cross arm, a grounding line cross arm and a tower body, wherein the guide line cross arm is positioned at the top of a tower head of the tower body and is used for hanging transmission guide lines at two poles, and the ground wire cross arm is integrated with the guide line cross arm, is formed by outwards and upwards extending from a certain distance of the guide line cross arm horizontally deviating from the tower head and is used for hanging a ground wire; or the ground wire cross arm is arranged at the top of the tower head of the tower body, the guide line cross arm is positioned at a certain distance below the tower head, the grounding line cross arm is positioned at the middle of the tower body and at a certain distance under the guide line cross arm, the grounding line cross arm is positioned at the middle of the tower body and is arranged below the guide line cross arm, the height between the guide line cross arm and a tower head connecting part is larger than that of two side parts of the cross arm, and the horizontal size of the tower head is large enough to bear a heavy load of the extra-high voltage transmission line. The tower frame can save line channels, and has better economic benefit and social benefit.
Description
Technical field
The utility model relates to HVDC overhead transmission line designing technique, especially about the pylon of a kind of extra high voltage direct current transmission line and earthing pole circuit wiring on the same 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 of electricity capacity and electric pressure, the UHV transmission line engineering is built in development.Chinese patent 03270643.X discloses a kind of multi-circuits transmission lines on single tower compact transmission line iron tower; Its tower body is installed a plurality of loops; The circuit that electric pressure is high is hung on the top of tower body, and the low circuit of electric pressure is hung on the bottom of tower body, can make the transmission line of electricity corridor obtain compression; But this tower body is the conveying that is used for high pressure or super-pressure alternating current; And be not suitable for the electric conveying of extra-high voltage direct-current, and promptly be not suitable for the HVDC the earth and return operational system, that is to say the transmission system that is not suitable for having extra high voltage direct current transmission line and earthing pole circuit.
Present extra high voltage direct current transmission line is ± the 800kV extra high voltage direct current transmission line that general DC line and earthing pole circuit are independent of each other for independently to set up, but need two separate lines corridors, thereby floor space is big.From the safe operation angle, DC line and earthing pole circuit should set up separately respectively.But the gallery problem has become the matter of utmost importance of restriction power network development for transmission line of electricity, 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.And national planning requires also more and more strictness, and to corridor, the uneasy winding displacement road of extra-high voltage direct-current transmission engine request earthing pole, this just mentions agenda with extra high voltage direct current transmission line and earthing pole circuit wiring on the same tower.
The optimal design of the tower of ± 800kV extra high voltage direct current transmission line and earthing pole circuit wiring on the same tower not only directly influences the safe and reliable operation of work transmission line, and is huge to the construction costs influence simultaneously.At present domesticly have ± 500kV DC line engineering in earthing pole wiring on the same tower tower, and the electric and burden requirement of prior art can't satisfy right ± 800kV extra high voltage direct current transmission line iron tower.There are certain difficulty in right ± 800kV extra high voltage direct current transmission line and the design of earthing pole circuit wiring on the same tower: should guarantee the operation of UHV transmission line engineering safety, and the solution wiring on the same tower of economical rationality design again, this is a difficult problem.
The utility model content
The purpose of the utility model provides a kind of pylon of arranging extra high voltage direct current transmission line and earthing pole circuit with tower; Can be under the prerequisite that guarantees the operation of extra high voltage direct current transmission line engineering safety; The solution line design of economical rationality is avoided earthing pole circuit corridor.
According to the utility model on the one hand, a kind of same tower layout extra high voltage direct current transmission line of tangent tower and pylon of earthing pole circuit of being applicable to is provided, comprises lead cross-arm, ground wire cross-arm, ground connection polar curve cross-arm and body of the tower; Wherein, Described lead cross-arm is positioned at the tower head top of said body of the tower; Be used to hang the two poles of the earth transmission pressure, said ground wire cross-arm and said lead cross-arm one and a distance of laterally leaving tower head from the lead cross-arm are extended towards export-oriented oblique upper and are formed, and are used to hang ground wire; Said ground connection polar curve cross-arm is positioned at the below that the body of the tower middle part is in the lead cross-arm; The height of described lead cross-arm and tower head connecting portion is greater than the height of said cross-arm both sides, and the lateral dimension of said tower head is enough big to bear the big load of UHV transmission line.
According to the utility model on the other hand, a kind of same tower layout extra high voltage direct current transmission line of angle tower and pylon of earthing pole circuit of being applicable to is provided, comprises lead cross-arm, ground wire cross-arm, ground connection polar curve cross-arm and body of the tower; Wherein, said ground wire cross-arm is arranged on the tower head top of said body of the tower, is used to hang ground wire; Said lead cross-arm is positioned at a distance of said tower head below, is used to hang the two poles of the earth transmission pressure, and said ground connection polar curve cross-arm is positioned at the distance under body of the tower middle part, the lead cross-arm; The height of described lead cross-arm and body of the tower connecting portion is greater than the height of said cross-arm both sides, and the lateral dimension of said ground wire cross-arm is enough big to bear the big load of UHV transmission line.
The vertical distance of two hanging points of DC power transmission line and earthing pole circuit, being preferably for angle tower is 17 meters, tangent tower is 20 meters.
Said pylon adopts angle steel or steel pipe and angle steel hybrid architecture; The material of steel pipe comprises Q345B and Q235B; And angle steel adopts the Q420 high-strength steel to combine with Q345, Q23 steel.
The beneficial effect of the utility model is: the utility model ± 800kV extra high voltage direct current transmission line and earthing pole wiring on the same tower structure are owing to strengthened structural-load-carrying capacity and structural rigidity; Can adapt to ± load and the loading characteristic of 800kV extra-high voltage direct-current circuit, and satisfy the arrangement mode of dc wire and earthing pole lead; Because the tower of right ± 800kV extra-high voltage direct-current circuit and earthing pole wiring on the same tower is selected and optimal design, can be under the prerequisite that guarantees the operation of extra high voltage direct current transmission line engineering safety, the solution line design difficult problem of economical rationality.Simultaneously, ± 800kV extra-high voltage direct-current circuit and earthing pole wiring on the same tower tower can be saved line channel, reduce housing demolition, and favorable economic benefit and social benefit are arranged.
In it should be understood that 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 sketch map of an embodiment of the same tower of the utility model pylon of arranging extra high voltage direct current transmission line and earthing pole circuit, and this pylon is used for the tangent tower power transmission mode;
Fig. 2 is the sketch map of another embodiment of the same tower of the utility model pylon of arranging extra high voltage direct current transmission line and earthing pole circuit, and this pylon is used for the angle tower power transmission mode.
The specific embodiment
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.
Fig. 1 illustrates an embodiment who is used for tangent tower of the utility model, and is as shown in the figure, and this same tower that is used for tangent tower arranges that the pylon of extra high voltage direct current transmission line and earthing pole circuit comprises: lead cross-arm 1, ground wire cross-arm 2, ground connection polar curve cross-arm 3 and body of the tower 4.Wherein, lead cross-arm 1 is positioned at the top of the tower head 5 of said body of the tower 4, is used to hang the two poles of the earth transmission pressure (not shown).Ground wire cross-arm 2 is integrally formed with said lead cross-arm 1, and a distance of laterally leaving tower head 5 from lead cross-arm 1 extends towards export-oriented oblique upper and form, and is used to hang ground wire (not shown).Ground connection polar curve cross-arm 3 is positioned at the body of the tower middle part, is in the below of lead cross-arm 1.As shown in Figure 1, the height of lead cross-arm 1 and tower head 5 connecting portions is greater than the height of said cross-arm both sides, and is as shown in the figure, and the lead cross-arm laterally keeps a segment distance at the height of this connecting portion in the tower head both sides, and this height reduces to two ends gradually subsequently.In the present embodiment, ground wire cross-arm 2 is to extend towards export-oriented oblique upper from the height change part, reduces highly gradually.The lateral dimension of said tower head 5 is enough big to bear the big load of UHV transmission line.
Fig. 2 illustrates another embodiment that is used for angle tower of the utility model; As shown in the figure, this same tower that is used for angle tower arranges that the pylon of extra high voltage direct current transmission line and earthing pole circuit comprises: comprise lead cross-arm 1, ground wire cross-arm 2, ground connection polar curve cross-arm 3 and body of the tower 4.Wherein, ground wire cross-arm 2 is arranged on the top of the tower head 5 of body of the tower 4, is used to hang ground wire (not shown).Lead cross-arm 1 is positioned at below one distance of tower head 5, is used to hang the two poles of the earth transmission pressure (not shown).Ground connection polar curve cross-arm 3 is positioned at the middle part of body of the tower 4, the distance under the lead cross-arm 1.The height of lead cross-arm 1 and body of the tower 4 connecting portions is greater than the height of lead cross-arm both sides, and as shown in the figure, the height at connecting portion place is decreased to a distance gradually to both sides, and the height after then this being reduced is retained to two side ends 6.The lateral dimension of ground wire cross-arm 2 is enough big to bear the big load of UHV transmission line.
The utility model is ± the optimal design structure of the turriform of 800kV extra high voltage direct current transmission line and earthing pole circuit wiring on the same tower; Because the layout of ground wire, lead and ground polar curve is that those of ordinary skill in the art knows, and therefore illustrates and specifies at this.
Preferably, the vertical distance of two hanging points of extra high voltage direct current transmission line and earth polar circuit is 17 meters for angle tower, and tangent tower is 20 meters.
Preferably, said pylon comprises that tower head 5 and body of the tower 4 adopt angle steel or steel pipe and angle steel hybrid architecture, with the stress-bearing capability and the structural rigidity of further raising iron tower.Wherein, the material of steel pipe comprises Q345B and Q235B; And angle steel adopts the Q420 high-strength steel to combine with Q345, Q23 steel.
In sum; Extra high voltage direct current transmission line of the utility model and earthing pole wiring on the same tower structure have 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 satisfy the arrangement mode of dc wire and earthing pole lead; Because the tower of right ± 800kV extra-high voltage direct-current circuit and earthing pole wiring on the same tower has carried out selection and optimal design; Can be under the prerequisite that guarantees the operation of extra high voltage direct current transmission line engineering safety; Make the line design economical rationality; Also be the new thinking of China's extra-high voltage direct-current line design developing from now on, design considerations and runtime verification are provided.
In addition, this ± 800kV extra-high voltage direct-current circuit and earthing pole wiring on the same tower tower can be saved line channel, reduce housing demolition, and favorable economic benefit and social benefit are arranged.This tower built in China ± obtain the operation demonstration in the 800kV extra-high voltage direct-current transmission engineering.In ± 800kV extra-high voltage direct-current transmission engineering, adopt the extra-high voltage direct-current circuit and the earthing pole wiring on the same tower scheme of the utility model; Its wiring on the same tower line length can reach 81.805km; Practice thrift about 3681 mu of circuit corridor 81.805km, reduce investment outlay about 6,738 ten thousand yuan.
Below the preferred embodiment of the utility model being specified, it will be understood that these detailed descriptions are to understand scheme of the present invention for clear, is not limitation of the scope of the invention.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, and these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Claims (10)
1. one kind is applicable to the same tower layout extra high voltage direct current transmission line of tangent tower and the pylon of earthing pole circuit, comprises lead cross-arm, ground wire cross-arm, ground connection polar curve cross-arm and body of the tower; It is characterized in that:
Described lead cross-arm is positioned at the tower head top of said body of the tower, is used to hang the two poles of the earth transmission pressure;
Said ground wire cross-arm and said lead cross-arm one and a distance of laterally leaving tower head from the lead cross-arm are extended towards export-oriented oblique upper and are formed, and are used to hang ground wire;
Said ground connection polar curve cross-arm is positioned at the below that the body of the tower middle part is in the lead cross-arm;
The height of described lead cross-arm and tower head connecting portion is greater than the height of said cross-arm both sides; And
The lateral dimension of said tower head is enough big to bear the big load of UHV transmission line.
2. pylon according to claim 1, the vertical distance that it is characterized in that two hanging points of said extra high voltage direct current transmission line and earthing pole circuit is 20 meters.
3. pylon according to claim 1 and 2 is characterized in that said extra high voltage direct current transmission line is ± the 800kV extra high voltage direct current transmission line.
4. pylon according to claim 1 and 2 is characterized in that said pylon adopts angle steel or steel pipe and angle steel hybrid architecture.
5. pylon according to claim 4 is characterized in that the material of steel pipe comprises Q345B and Q235B; Angle steel adopts the Q420 high-strength steel to combine with Q345, Q23 steel.
6. one kind is applicable to the same tower layout extra high voltage direct current transmission line of angle tower and the pylon of earthing pole circuit, comprises lead cross-arm, ground wire cross-arm, ground connection polar curve cross-arm and body of the tower; It is characterized in that:
Said ground wire cross-arm is arranged on the tower head top of said body of the tower, is used to hang ground wire;
Said lead cross-arm is positioned at a distance of said tower head below, is used to hang the two poles of the earth transmission pressure;
Said ground connection polar curve cross-arm is positioned at the distance under body of the tower middle part, the lead cross-arm;
The height of described lead cross-arm and body of the tower connecting portion is greater than the height of said cross-arm both sides; And
The lateral dimension of said ground wire cross-arm is enough big to bear the big load of UHV transmission line.
7. pylon according to claim 6, the vertical distance that it is characterized in that two hanging points of extra high voltage direct current transmission line and earth polar circuit is 17 meters.
8. according to claim 6 or 7 described pylons, it is characterized in that said extra high voltage direct current transmission line is ± the 800kV extra high voltage direct current transmission line.
9. according to claim 6 or 7 described pylons, it is characterized in that said pylon adopts angle steel or steel pipe and angle steel hybrid architecture.
10. pylon according to claim 9 is characterized in that the material of steel pipe comprises Q345B and Q235B; Angle steel adopts the Q420 high-strength steel to combine with Q345, Q23 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203057304U CN202249079U (en) | 2011-08-19 | 2011-08-19 | Tower frame applied to extra-high voltage direct current transmission line and grounding line arranged in same tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203057304U CN202249079U (en) | 2011-08-19 | 2011-08-19 | Tower frame applied to extra-high voltage direct current transmission line and grounding line arranged in same tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202249079U true CN202249079U (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203057304U Expired - Lifetime CN202249079U (en) | 2011-08-19 | 2011-08-19 | Tower frame applied to extra-high voltage direct current transmission line and grounding line arranged in same tower |
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| Country | Link |
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| CN (1) | CN202249079U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106760875A (en) * | 2016-12-16 | 2017-05-31 | 国网北京市电力公司 | Parallel erected on same tower earthing pole tower |
| CN115241833A (en) * | 2022-08-15 | 2022-10-25 | 中国能源建设集团广东省电力设计研究院有限公司 | Strain tower |
-
2011
- 2011-08-19 CN CN2011203057304U patent/CN202249079U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106760875A (en) * | 2016-12-16 | 2017-05-31 | 国网北京市电力公司 | Parallel erected on same tower earthing pole tower |
| CN115241833A (en) * | 2022-08-15 | 2022-10-25 | 中国能源建设集团广东省电力设计研究院有限公司 | Strain tower |
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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: 200063 Wuning Road, Shanghai, No. 409, No. 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: Co., Ltd of Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Corporation Address before: 200063 Wuning Road, Shanghai, No. 409, No. 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: Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Cor |
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| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
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| CX01 | Expiry of patent term |