CN101807781A - Damper for 800kV extra-high voltage alternative-current transmission line - Google Patents
Damper for 800kV extra-high voltage alternative-current transmission line Download PDFInfo
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- CN101807781A CN101807781A CN200910025012A CN200910025012A CN101807781A CN 101807781 A CN101807781 A CN 101807781A CN 200910025012 A CN200910025012 A CN 200910025012A CN 200910025012 A CN200910025012 A CN 200910025012A CN 101807781 A CN101807781 A CN 101807781A
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- steel strand
- end tup
- hammer
- tup
- damper
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Abstract
The invention relates to a damper for 800kV extra-high voltage alternative-current transmission lines in power sector, which comprises a cable clamp, two damper bodies, a steel strand and at least one preformed armor rod. The cable clamp and the steel strand are fixedly connected; the two damper bodies are respectively fixed on the two ends of the steel strand; the preformed armor rod fixes the cable clamp on a power transmission line; the cable clamp is in a sea horse shaped structure; the damper bodies are in a cucurbit shaped structure; and the two damper bodies are symmetrically and obliquely fixed on the two ends of the steel strand. Since hangers of the cable clamp, as well as corners of the cable clamp, which are used for fixing conduits, are designed into an arc shape, marginal discharge can be avoided; since the two damper bodies are symmetrically and obliquely fixed on the two ends of the steel strand and the damper bodies are designed into a cucurbit shaped structure, vibration can be eliminated more accurately; a damper head at a cantilever end is provided with a windward side, so the line vibration caused by crosswind can be eliminated; the connection between the windward side and the damper head is designed into an arc shape, thereby avoiding marginal discharge and improving corona voltage; and the surfaces of the damper bodies are polished to be smooth, thereby improving the overall performance.
Description
Technical field
The present invention relates to a kind of antihunting device that the power industry electric line is used, the stockbridge damper that the specifically a kind of 800kV of being used for extra-high voltage direct-current transmission is used.
Background technology
Relevant by retrieval patent documentation does not retrieve the stockbridge damper that the 800kV extra-high voltage direct-current transmission identical with structure of the present invention used at present as yet.Stockbridge damper has been widely used in overhead transmission line as a kind of vibration absorber of electric line.Existing stockbridge damper is owing to its structural reason, and its profile is clumsy, and is difficult to eliminate the deposition of water and ice, phenomenons such as easier generation point discharge under the ultra high voltage state simultaneously, sudden strain of a muscle dirt.The ZL200720039659.3 of the patentee's application, name is called: the anti-slip type stockbridge damper, aspects such as deposition at vibration-isolating effect, elimination water and ice are greatly improved, but along with improving constantly of transmission voltage, particularly under the extra-high voltage direct-current transmission state, how to improve the deposition of corona voltage, elimination point discharge and water and ice, have higher requirement to people, so be necessary existing stockbridge damper is improved, to adapt to the transmission operation under the ultra high voltage state.
Summary of the invention
The objective of the invention is to provide a kind of improvement on existing stockbridge damper basis, have dependable performance, can be adapted to the 800kV extra high voltage direct current transmission line stockbridge damper of electric line under the 800kV extra-high voltage direct-current state.
To achieve these goals, the present invention is by the following technical solutions:
800kV extra high voltage direct current transmission line stockbridge damper, form by wire clamp, hammer body, steel strand wire, at least one preformed armor rods, wire clamp installs with steel strand wire and is connected, two hammer bodies are packed in the two ends of steel strand wire respectively, preformed armor rods is used for wire clamp is fixed on power transmission line, described wire clamp is a hippocampus shape version, and it is convex structure that its A/C and steel strand wire install link, and wire clamp is provided with 1～6 and separates nail; Described hammer body is a cucurbit shape version, and two hammer body symmetries tilt to be packed on the two ends of steel strand wire; The link position of steel strand wire and hammer body is arranged on the side of stiff end tup of hammer body.
Described wire clamp is made up of separation nail, hook, A/C, separates the top that nail is arranged at hook respectively, and A/C is connected with hook; Its cross section of described hook a corner is the circular shape structure, and its both ends of described A/C are respectively the convex structure form.
Described hammer body is made up of stiff end tup, coupling part, cantilever end tup, and the distance L between its stiff end tup hammer heart and the cantilever end tup hammer heart is: 180mm＜L＜200mm; The stiff end tup is that round platform smooth transition version is connected with coupling part, cantilever end tup with the coupling part, and the angle α between line between the stiff end tup and the cantilever end tup hammer heart and the steel strand wire between vertical plane is: 10 °≤α≤15 °; Angle β between line between the stiff end tup and the cantilever end tup hammer heart and the steel strand wire between horizontal plane is: 5 °≤β≤10 °; The cantilever end tup is provided with windward side b, and the angle γ between windward side b and the vertical plane is: 25 °≤γ≤40 °, windward side b takes circular arc to be connected with the cantilever end tup, and its R is: 15mm≤R≤25mm.
The big footpath D of the stiff end tup in the described hammer body
1, the coupling part path D
2, the big footpath D of cantilever end tup
3Between ratio Z be: 1.3: 1: 2≤Z≤1.6: 1: 2.5.
During use, the wire clamp of stockbridge damper is hung on the installation site of design appointment in the circuit, and make the present invention be in the nature plumbness, takes out the separation that a preformed armor rods aims at wire clamp with the sign of central authorities and follow closely on the centre position, and preformed armor rods is wrapped on the lead; Repeat above-mentioned action, more other two preformed armor rodses are wrapped in respectively on wire clamp and the transmission pressure, thereby stockbridge damper is fixed.
Two hammer bodies symmetry tilts to be fixed on the two ends of steel strand wire, its objective is to producing multifrequency resonance, absorbs the vibration of different frequency, prevents that the lead fatigue damage is provided with; The stiff end tup of hammer body is provided with the windward side, its objective is to improving the ability of facining the wind of hammer body, eliminating to absorb the different frequency vibration and be provided with; The design of the link position of steel strand wire and hammer body its objective is and is convenient to eliminate water and ice deposition and is provided with on the side arc surface of hammer body stiff end tup; Hammer body is designed to cucurbit shape form, and with the big footpath D of stiff end tup
1, the coupling part path D
2, the big footpath D of cantilever end tup
3Be controlled within certain proportion, its objective is in order satisfying under 800kV ultra high voltage state and to avoid point discharge, improve the corona voltage grade and be provided with; The cantilever end tup is provided with the windward side, and makes the windward side of two hammer bodies be arranged to the opposite face position, its objective is that circuit vibration that crosswind brings is provided with in order to eliminate; Being connected between the windward side of cantilever end tup and the tup is designed to circular-arc, and with arc size control within the specific limits, its objective is for fear of in the discharge of 800kV ultra high voltage state lower prong and design.
Advantage of the present invention is: separate nail because wire clamp is provided with 1-6, and with preformed armor rods respectively the interval on wire clamp, thereby stockbridge damper and power transmission cable effectively are intertwined and connected; Because the hook of wire clamp, the corner of A/C are designed to the convex structure form respectively, thereby have avoided point discharge phenomenon; Because two hammer bodies symmetry respectively tilt to be installed in the two ends of steel strand wire, thereby have improved the damping capacity of stockbridge damper; Because hammer body is designed to cucurbit shape version, and with the big footpath D of stiff end tup
1, the coupling part path D
2, the big footpath D of cantilever end tup
3Be controlled within certain proportion, thereby eliminated the vibration of transmission line more accurately, effectively absorb the vibration of different frequency transmission of electricity circuit; Because the tie point of stiff end tup and steel strand wire is arranged on the arc surface of stiff end tup side, thereby water and ice deposition that stiff end tup and steel strand wire junction are produced are in time eliminated; Because the cantilever end tup is provided with the windward side, and and vertical plane between form certain included angle, thereby effectively eliminated the circuit vibration that crosswind brings; Because it is circular-arc that being connected between the windward side of cantilever end tup and the tup is designed to, and with arc size control within the specific limits, thereby avoided point discharge, improved corona voltage; Because processing has been taked to polish smooth in the hammer body surface, thereby has improved whole performance, has reduced pollution flashover; Because rational in infrastructure, easy to install, dependable performance is so there is very big practical and popularizing value.
Description of drawings
Below with reference to accompanying drawing the present invention is further described:
Accompanying drawing 1 is the structural representation of 800kV extra high voltage direct current transmission line of the present invention with stockbridge damper;
Accompanying drawing 2 is vertical views of accompanying drawing 1;
Accompanying drawing 3 is structural representations of accompanying drawing 1A-A section;
Accompanying drawing 4 is structural representations of accompanying drawing 1B-B section;
Accompanying drawing 5 is structural representations of accompanying drawing 1C-C section
Embodiment
With reference to accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, accompanying drawing 5,800kV extra high voltage direct current transmission line stockbridge damper of the present invention is made up of wire clamp 1, hammer body 2, steel strand wire 3, at least one preformed armor rods 4, and the preformed armor rods 4 of present embodiment is three; Wire clamp 1 installs with steel strand wire 3 and is connected, two hammer bodies 2 are packed in the two ends of steel strand wire 3 respectively, preformed armor rods 4 is used for wire clamp 1 is fixed on power transmission line, described wire clamp 1 is a hippocampus shape version, it is convex structure that its A/C 13 installs link with steel strand wire 3, described wire clamp 1 is made up of separation nail 11, hook 12, A/C 13, and 1～6 separation nail 11 is arranged at respectively links up with 12 top, and the separation nail 11 of present embodiment is 4; A/C 13 is connected with hook 12; Described hook 12 its cross section a corners are the circular shape structure, and described A/C 13 its both ends are respectively the convex structure form; Described hammer body 2 is a cucurbit shape version, and two hammer body 2 symmetries tilt to be packed on the two ends of steel strand wire 3; The link position of steel strand wire 3 and hammer body 2 is arranged on the side of stiff end tup 21 of hammer body 2; Hammer body 2 is made up of stiff end tup 21, coupling part 22, cantilever end tup 23, and the distance L between its stiff end tup 21 hammer hearts and the cantilever end tup 23 hammer hearts is: 180mm＜L＜200mm, and the L of present embodiment is: 180mm; Stiff end tup 21 and coupling part 22, cantilever end tup 23 and coupling part 22 are connected for round platform smooth transition version, angle α between line between the stiff end tup 21 and the cantilever end tup 23 hammer hearts and the steel strand wire 3 between vertical plane is: 10 °≤α≤15 °, the α of present embodiment is 12 °; Angle β between line between the stiff end tup 21 and the cantilever end tup 23 hammer hearts and the steel strand wire 3 between horizontal plane is: 5 °≤β≤10 °, the β of present embodiment is 8 °; Cantilever end tup 23 is provided with windward side b, angle γ between windward side b and the vertical plane is: 25 °≤γ≤40 °, the γ of present embodiment is 30 °, and windward side b takes circular arc to be connected with cantilever end tup 23, its R is: 15mm≤R≤25mm, the R of present embodiment are 18mm; The big footpath D of the stiff end tup 21 in the described hammer body 2
1, coupling part 22 path D
2, the big footpath of cantilever end tup 23 D
3Between ratio Z be: 1.3: 1: 2≤Z≤1.6: 1: 2.5, the Z of present embodiment was 1.5: 1: 2.1.
Claims (4)
1.800kV extra high voltage direct current transmission line stockbridge damper, form by wire clamp (1), hammer body (2), steel strand wire (3), at least one preformed armor rods (4), wire clamp (1) installs with steel strand wire (3) and is connected, two hammer bodies (2) are packed in the two ends of steel strand wire (3) respectively, preformed armor rods (4) is used for wire clamp (1) is fixed on power transmission line, it is characterized in that: described wire clamp (1) is hippocampus shape version, it is convex structure that its A/C (13) installs link with steel strand wire (3), and wire clamp (1) is provided with 1～6 and separates nail (11); Described hammer body (2) is a cucurbit shape version, and two hammer bodies (2) symmetry tilts to be packed on the two ends of steel strand wire (3); The link position of steel strand wire (3) and hammer body (2) is arranged on the side of stiff end tup (21) of hammer body (2).
2. 800kV extra high voltage direct current transmission line stockbridge damper according to claim 1, it is characterized in that: described wire clamp (1) is followed closely (11), hook (12) by separating, A/C (13) is formed, separate and follow closely the top that (11) are arranged at hook (12) respectively, A/C (13) is connected with hook (12); Its cross section of described hook (12) a corner is the circular shape structure, and its both ends of described A/C (13) are respectively the convex structure form.
3. 800kV extra high voltage direct current transmission line stockbridge damper according to claim 1, it is characterized in that: described hammer body (2) is made up of stiff end tup (21), coupling part (22), cantilever end tup (23), and the distance L between its stiff end tup (21) the hammer heart and cantilever end tup (23) the hammer heart is: 180mm＜L＜200mm; Stiff end tup (21) is connected for round platform smooth transition version with coupling part (22) with coupling part (22), cantilever end tup (23), and the angle α between line between the stiff end tup (21) and cantilever end tup (23) the hammer heart and the steel strand wire (3) between vertical plane is: 10 °≤α≤15 °; Angle β between line between the stiff end tup (21) and cantilever end tup (23) the hammer heart and the steel strand wire (3) between horizontal plane is: 5 °≤β≤10 °; Cantilever end tup (23) is provided with windward side b, and the angle γ between windward side b and the vertical plane is: 25 °≤γ≤40 °, windward side b takes circular arc to be connected with cantilever end tup (23), and its R is: 15mm≤R≤25mm.
4. according to claim 1 or 3 described 800kV extra high voltage direct current transmission line stockbridge dampers, it is characterized in that: the big footpath D of the stiff end tup (21) in the described hammer body (2)
1, coupling part (22) path D
2, the big footpath of cantilever end tup (23) D
3Between ratio Z be: 1.3: 1: 2≤Z≤1.6: 1: 2.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910025012 CN101807781B (en) | 2009-02-16 | 2009-02-16 | Damper for 800kV extra-high voltage alternative-current transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910025012 CN101807781B (en) | 2009-02-16 | 2009-02-16 | Damper for 800kV extra-high voltage alternative-current transmission line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101807781A true CN101807781A (en) | 2010-08-18 |
| CN101807781B CN101807781B (en) | 2013-04-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910025012 Active CN101807781B (en) | 2009-02-16 | 2009-02-16 | Damper for 800kV extra-high voltage alternative-current transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101807781B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633606A (en) * | 2012-08-22 | 2014-03-12 | 中国电力科学研究院 | Pre-twisted wire type damper used in high altitude areas |
| CN104953528A (en) * | 2015-07-16 | 2015-09-30 | 国网河北省电力公司衡水供电分公司 | Energy-saving type combined fitting provided with wire and used for preventing damper movement and use method of energy-saving type combined fitting |
| CN106803662A (en) * | 2015-11-26 | 2017-06-06 | 江苏天南电力器材有限公司 | A kind of carbon-fibre wire anti-vibration hammer for high-voltage power transmission lines |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4159393A (en) * | 1976-07-09 | 1979-06-26 | Dulmison Australia Pty Ltd | Vibration damper |
| JPH11308744A (en) * | 1998-04-27 | 1999-11-05 | Daido Denki Kogyo Kk | Cable clamp for torsion preventive damper |
| CN201048265Y (en) * | 2007-04-24 | 2008-04-16 | 江苏天南电力器材有限公司 | Dog-bone type energy-saving antivibration hammer |
| CN101242085A (en) * | 2008-02-04 | 2008-08-13 | 江苏中天科技股份有限公司 | Hook vibration prevention hammer |
| CN201518408U (en) * | 2009-02-16 | 2010-06-30 | 江苏天南电力器材有限公司 | Damper for 800 kV ultra-high voltage DC transmission line |
-
2009
- 2009-02-16 CN CN 200910025012 patent/CN101807781B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4159393A (en) * | 1976-07-09 | 1979-06-26 | Dulmison Australia Pty Ltd | Vibration damper |
| JPH11308744A (en) * | 1998-04-27 | 1999-11-05 | Daido Denki Kogyo Kk | Cable clamp for torsion preventive damper |
| CN201048265Y (en) * | 2007-04-24 | 2008-04-16 | 江苏天南电力器材有限公司 | Dog-bone type energy-saving antivibration hammer |
| CN101242085A (en) * | 2008-02-04 | 2008-08-13 | 江苏中天科技股份有限公司 | Hook vibration prevention hammer |
| CN201518408U (en) * | 2009-02-16 | 2010-06-30 | 江苏天南电力器材有限公司 | Damper for 800 kV ultra-high voltage DC transmission line |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633606A (en) * | 2012-08-22 | 2014-03-12 | 中国电力科学研究院 | Pre-twisted wire type damper used in high altitude areas |
| CN103633606B (en) * | 2012-08-22 | 2016-01-20 | 中国电力科学研究院 | A kind of for high altitude localities pre-twisted wire type anti-vibration hammer |
| CN104953528A (en) * | 2015-07-16 | 2015-09-30 | 国网河北省电力公司衡水供电分公司 | Energy-saving type combined fitting provided with wire and used for preventing damper movement and use method of energy-saving type combined fitting |
| CN104953528B (en) * | 2015-07-16 | 2017-01-25 | 国网河北省电力公司衡水供电分公司 | Energy-saving type combined fitting provided with wire and used for preventing damper movement and use method of energy-saving type combined fitting |
| CN106803662A (en) * | 2015-11-26 | 2017-06-06 | 江苏天南电力器材有限公司 | A kind of carbon-fibre wire anti-vibration hammer for high-voltage power transmission lines |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101807781B (en) | 2013-04-03 |
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Address after: 226500, Rugao City, Jiangsu province Nantong City, such as Town Hing Yuen Road, No. 9 Patentee after: Jiangsu Tiannan Electric Power Co., Ltd Address before: 226522 Jiangsu city of Rugao Province Town South Gao Road No. 8 Patentee before: JIANGSU TIANNAN POWER EQUIPMENT Co.,Ltd. |
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