CN202039635U - Tension-resistant steel tube rod of extra-high voltage direct current ground electrode circuit - Google Patents
Tension-resistant steel tube rod of extra-high voltage direct current ground electrode circuit Download PDFInfo
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- CN202039635U CN202039635U CN2011200961034U CN201120096103U CN202039635U CN 202039635 U CN202039635 U CN 202039635U CN 2011200961034 U CN2011200961034 U CN 2011200961034U CN 201120096103 U CN201120096103 U CN 201120096103U CN 202039635 U CN202039635 U CN 202039635U
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Abstract
The utility model relates to a tension-resistant steel tube rod of an extra-high voltage direct current ground electrode circuit. The tension-resistant steel tube rod consists of ground wire hanging points, conducting wire cross arms, a main rod and a chassis flange. The ground wire hanging points are arranged at the top of the rod for hanging ground wires; the conducting wire cross arms are arranged at the lower part of a rod head for hanging conducting wires; the main rod is formed by assembling and connecting conic steel tubes; sections of the conic steel tubes are connected with each other through rigid flanges; the main rod is connected with a basic foundation bolt through the chassis flange; and the steel tube members are made from middle strength steel. With the adoption of the embodiment provided by the utility model, the requirements of the extra-high voltage direct current ground electrode circuit can be met.
Description
Technical field:
The utility model relates to transmission line of electricity steel pipe pole field, particularly relates to a kind of extra-high voltage direct-current earthing pole circuit strain insulator steel pipe pole.
Background technology:
Because developable hydroelectric resources of China and coal resources major part concentrate on the Midwest, and the area of China's need for electricity maximum concentrates on the southeast, therefore, for the electric energy that allows energy base produce reduces loss in the process that is transported to the electricity needs center, improve the transmission of electricity quality, China is developing and is building energetically UHV transmission line at present.
The extra-high voltage direct-current transmission engineering be meant ± DC transmission engineering of 800kV and above electric pressure, and the earthing pole line project is the conveyance system of extra high voltage direct current transmission line.The earthing pole circuit generally adopts overhead power transmission, promptly use electric power line pole tower that transmission pressure and ground wire are supported in the air, and the strain resistant shaft tower generally is used for the corner of circuit, but is the less of paramount importance shaft tower type of usage quantity in the transmission line of electricity.
At present, the direct current grounding pole line design can adopt conventional angle steel tower usually, because anchor support is stressed big, its body of the tower size, member specification, iron tower root are held generally all can be bigger, so the iron tower floor space is very big.During through the expropriation of land area in hardship such as outskirts of a town, be difficult to satisfy urban construction planning and environmental requirement at circuit; And there are shortcomings such as external form is not attractive in appearance, the tower material is stolen easily.And the transmission line of electricity steel pipe pole since processing and manufacturing easily, easy construction, floor space be few, the urban construction planning requirement that is content with very little, and handsome in appearance, be difficult for stolen.Therefore, when the transmission line of electricity electric pressure was lower, steel pipe pole was through being usually used in city and outskirts of a town.
At present steel pipe pole generally is used for the transmission line of alternation current, thereby design is applied to extra-high voltage direct-current earthing pole circuit and economy, steel pipe pole attractive in appearance is the problems that those skilled in the art are worth research and solve.
The utility model content:
Use conventional strain resistant angle steel tower can not satisfy the construction plan of the expropriation of land area in hardship and the problem of environmental requirement for overcoming the direct current grounding pole circuit, the utility model provides a kind of extra-high voltage direct-current earthing pole circuit strain insulator steel pipe pole, not only satisfy the circuit requirement, and handsome in appearance.
Described strain insulator steel pipe pole is made up of ground wire hanging point, lead cross-arm, mobile jib and chassis flange.Described ground wire hanging point is arranged on masthead, is used to hang ground wire, and when circuit passed through the circuit of voltage levels more, steel pipe pole did not set up ground wire in passing through span; Described lead cross-arm is horizontal tapered tubular cross-arm, and cross section is the rectangle of remaining silent, and cross-arm quantity is 2, is symmetrically arranged in bar head bottom on circuit corner bisector, is used to hang lead; Mobile jib is formed by conical steel pipe winding, adopts rigid flange to connect between each section conical steel pipe, and mobile jib is connected with foot bolt fundamentally by the chassis flange; Strong steel during described steel pipe pole member material adopts.
Strain insulator steel pipe pole and strain insulator angle steel tower are compared, and under identical electric condition and loading condition, the head dimensions of steel pipe pole is less than the tower head size of angle steel tower, make the circuit corridor obtain compression like this; The floor space of four tower legs of angle steel tower is bigger in addition, even compare with narrow basic iron tower, the steel pipe pole floor space is also much smaller.Though the body cost of strain insulator steel pipe pole is bigger than anchor support, but under the situation of taking all factors into consideration general expenses such as expropriation of land, removal, adopt the whole cost of strain insulator steel pipe pole still lower, therefore, regional on the outskirts of a town, the advantage of strain insulator steel pipe pole still significantly.
The utility model is a kind of direct current grounding pole circuit steel pipe pole, lead cross-arm quantity is 2, be used for hanging two group of two split conductor, the lines load that need bear three-phase conducting wire with the alternating current circuit steel pipe pole of same design electric pressure comparatively speaking, the external loads that earthing pole circuit steel pipe pole bears is less, its scantling, specification are also less relatively, therefore, use steel pipe pole more economical in the earthing pole circuit.
The earthing pole circuit strain insulator steel pipe pole that the utility model is stated compared with prior art, have following advantage: shaft has adopted the circular cross-section steel pipe, has less wind carrier model coefficient, so the wind load that bears of shaft can be smaller; Shaft adopts rigid flange to connect, the node location connection and reasonable arrangement of connection, and problems such as difficult quality guarantee and intensity bottleneck are welded at the scene of both having avoided adopting prior welding mode to be easy to generate, and can save material again when avoiding the unfavorable stress of structure; When the earthing pole circuit passes through more the voltage levels circuit, steel pipe pole does not set up ground wire in passing through span, directly utilize the ground wire that is passed through circuit to carry out lightning protection, when saving electric wire material, also reduced the load that shaft bears, played the effect of safe province material; In addition, strong steel during steel pipe pole member material adopts, preferred by to caliber and wall thickness made full use of the strength of materials, saved steel, reduced construction costs.
As seen, adopt the beneficial effects of the utility model to be: compressed the circuit corridor and the difficulty of avoiding taking over the land for use, reduced floor space in, both economic environmental protection, safety is attractive in appearance again.
Description of drawings:
Fig. 1 is total figure of the utility model embodiment.
Fig. 2 is the rigid flange organigram of the utility model embodiment.
Wherein: 1 is the steel pipe pole mobile jib, and 2 is the ground wire hanging point, and 3 is the lead cross-arm, and 4 is spacer flanger, and 5 is the chassis flange, and 6 is strain insulator string, and 6a, 6b are lead, and 7 is the cross-arm bearing.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing.
An embodiment of the present utility model as shown in Figure 1, use in the corner of extra-high voltage direct-current earthing pole circuit, it by mobile jib 1, two ground wire hanging points 2 (settings of front and back side), two lead cross-arms 3 and connection mobile jib and fundamentally the chassis flange 5 of foot bolt formed.Set: lead cross-arm 3 reaches and is called the bar head with top.
Wherein, ground wire hanging point 2 is arranged on masthead, in order to hang ground wire; Lead cross-arm 3 is arranged on bar head bottom, and quantity is two, is symmetrically arranged on circuit corner bisector, and it hangs lead 6a, the 6b of direct current grounding pole circuit by strain insulator string 6; Mobile jib 1 is made up of five sections conical steel pipes, and between each section steel pipe and mobile jib and all adopt rigid flange (4,5) to connect fundamentally between the foot bolt, in the middle of shaft be spacer flanger 4, and what be connected with foot bolt fundamentally at the mobile jib root is chassis flange 5; Lead cross-arm 3 is connected by cross-arm bearing 7 with mobile jib 1.
The quantity of the ground wire hanging point 2 of present embodiment is two, be arranged at the front side and the rear side of line alignment respectively, adopt the hoop link plate to be welded on the mobile jib, two hanging point positions are about symmetry before and after the bisector of circuit corner, and the benefit of doing like this is to allow shaft stressed more reasonable.
In transmission line of electricity, the ground wire that ground wire hanging point 2 is hung is provided with for avoiding circuit to be struck by lightning destroying, and lead is shielded.Pass through other more during the voltage levels circuit at the earthing pole circuit, steel pipe pole does not set up ground wire in passing through span, directly utilize the ground wire that is passed through circuit to carry out lightning protection.
Because the steel pipe pole flexibility is bigger, be the displacement of control masthead, shaft adopts rigid flange to connect, when design spacer flanger 4 and chassis flange 5, as shown in Figure 2, in order in the distortion of control flange, can also to save material, the distribution radius d1 of flange bolt and pitch of bolts d2 carried out optimizing calculated, make flange arrangement more become reasonable.
The lead cross-arm of described embodiment is shaped as horizontal taper, and cross-arm adopts the square-section of remaining silent in a tubular form, and big and little away from the cross section of root near the cross section of cross-arm root, such design can be satisfied the force request of strain insulator rod guidance line cross-arm preferably; Because the steel tube component tube wall of club head portion is thinner, produce the partial buckling problem for avoiding cross-arm directly to link to each other with shaft, adopt the box-shaped bearing to connect.
In addition, strong steel during the member material of described embodiment adopts, preferred by to caliber and wall thickness made full use of the strength of materials, saved steel, reduced construction costs.
Above content is to further describing that the present invention did in conjunction with concrete preferred implementation; can not assert that the specific embodiment of the present invention only limits to this; for the general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the present invention and determine scope of patent protection by claims of being submitted to.
Claims (4)
1. extra-high voltage direct-current earthing pole circuit strain insulator steel pipe pole is characterized in that:
Described steel pipe pole is made up of ground wire hanging point, lead cross-arm, mobile jib and chassis flange; Described ground wire hanging point is arranged on masthead; Described lead cross-arm is arranged at bar head bottom; Described mobile jib is formed by conical steel pipe winding, adopts rigid flange to connect between each section conical steel pipe, and mobile jib is connected with foot bolt fundamentally by the chassis flange.
2. extra-high voltage direct-current earthing pole circuit strain insulator steel pipe pole as claimed in claim 1 is characterized in that: described steel pipe pole walks upwards to be provided with 2 ground wire hanging points before and after circuit, and 2 hanging point positions are about symmetry before and after the bisector of circuit corner.
3. extra-high voltage direct-current earthing pole circuit strain insulator steel pipe pole as claimed in claim 1 is characterized in that: described lead cross-arm is horizontal taper, quantity is 2, is symmetrically arranged on circuit corner bisector; Cross-arm is a tubulose, and cross section is the rectangle of remaining silent.
4. extra-high voltage direct-current earthing pole circuit strain insulator steel pipe pole as claimed in claim 1 is characterized in that: strong steel during described steel pipe pole member material is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200961034U CN202039635U (en) | 2011-04-02 | 2011-04-02 | Tension-resistant steel tube rod of extra-high voltage direct current ground electrode circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200961034U CN202039635U (en) | 2011-04-02 | 2011-04-02 | Tension-resistant steel tube rod of extra-high voltage direct current ground electrode circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202039635U true CN202039635U (en) | 2011-11-16 |
Family
ID=44967084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200961034U Expired - Lifetime CN202039635U (en) | 2011-04-02 | 2011-04-02 | Tension-resistant steel tube rod of extra-high voltage direct current ground electrode circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202039635U (en) |
-
2011
- 2011-04-02 CN CN2011200961034U patent/CN202039635U/en not_active Expired - Lifetime
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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 |
Owner name: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA Free format text: FORMER NAME: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE, CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION |
|
| CP03 | Change of name, title or address |
Address after: 710075 Xi'an province high tech Development Zone, unity South Road, No. 22, No. Co-patentee after: Changshu Fengfan Power Equipment Co., Ltd. Patentee after: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP Address before: 710075, No. 22, unity South Road, hi tech Zone, Shaanxi, Xi'an Co-patentee before: Changshu Fengfan Power Equipment Co., Ltd. Patentee before: Northwest Electric Power Design Institute, China Power Engineering Consulting Group Corporation |
|
| CX01 | Expiry of patent term |
Granted publication date: 20111116 |
|
| CX01 | Expiry of patent term |