A kind of hyperbola trophy type power transmission line column
Technical field
The utility model is related to a kind of transmission line of electricity technical field, particularly a kind of hyperbola trophy type power transmission line column.
Background technology
In order to reduce the cost of electrical energy transportation, reduce transmission of electricity corridor to appropriation of land, using extra-high voltage grade circuit and
Circuit compact transmission mode is two effectively approach, therefore, and UHV transmission and circuit compact transmission are made in countries in the world
For the preferred scheme of long-distance and large-capacity power transmission.The need for according to China's electric energy long-distance sand transport, China was pushing greatly in recent years
Three-phase conducting wire is placed in same tower window by dynamic extra-high voltage grid construction, compact transmission line by being optimized the arrangement of to wire,
No ground component between three-phase conducting wire, reaches raising natural transmission power, reduces line corridor width, improves unit corridor transmission of electricity and holds
Amount.Recently as the increasingly in short supply of China's land resource, compact line has also obtained development energetically in China, in order to save
About land resource, line corridor is often set along highway, and conventional power transmission line column floor space is established in highway region
Greatly, to occupy space for low latitude big, it is impossible to effective utilization space and is unfavorable for line security operation.
A kind of narrow base power transmission tower master of 220kV common-tower double-returns road lattice composite that patent document CN203939278U is opened
To include tower leg (7), tower body (6), double loop composite tower head (8) and earth wire support (1);Described double loop composite
Tower head (8) is constituted by being arranged vertically in three layer conductor cross-arms being arranged above and below, be followed successively by from top to bottom wire cross-arm (2), in
Wire cross-arm (3) and lower wire cross-arm (4), six phase conductors are joined using " I " type insulator chain with power transmission tower wire cross-arm
Knot.The patent good insulation preformance, effectively reduction insulating Design level, but the patent carries tower leg, tower body and tower head, adds negative
Weight and cost, reliability and stability are high, to low latitude space can not effectively using and be unfavorable for the safe operation of circuit.
A kind of double loop power transmission tower disclosed in patent document CN105464446 A includes the tower body (1) being vertically arranged and divided
The tower head (2) and basis (3) of the tower body (1) upper and lower ends are not arranged on, and the tower head (2) includes tower window (4), is arranged on institute
State the earth wire support (5) of tower window (4) both upper ends thereof and the return wire being arranged in the tower window (4);The basis (3) includes
Concrete foundation (6) and the cushion cap (7) for being arranged on the concrete foundation (6) upper end.The patent has good electric tower antitorque
Property, but the patent carries tower leg, tower body and tower head, adds heavy burden and cost, and reliability and stability are not high, to low latitude space
Can not effectively using and be unfavorable for the safe operation of circuit.
A kind of high voltage power transmission tower disclosed in patent document CN204126354U include column foot (1), column foot (2), tower body (3),
Tower top (4) and cross-arm (5), described column foot (1), column foot (2), tower body (3) and tower top (4) are sequentially connected from down to up, described
Cross-arm (5) be arranged on tower top (4), described cross-arm (5) is provided with insulator chain, described column foot (2), tower body (3) and
Tower top (4) is fixed by screw by horizontal material, oblique material and web member and constitutes quadrangular truss structure.The patent tower bar uses quadrangular
Truss structure and material are high-strength steel, but the patent carries tower leg, tower body and tower head, add heavy burden and cost, reliability
It is not high with stability, to low latitude space can not effectively using and be unfavorable for the safe operation of circuit.
Disclosed above- mentioned information is used only for strengthening the understanding to the utility model background in the background section, therefore
The information of prior art known to a person of ordinary skill in the art in not constituting home may be included.
Utility model content
In view of the above problems, the utility model implements to provide one kind suitable for highway region, with environmental harmony, exempts tower
Leg, tower body and tower head, reliability and stability are high, and reduction deadweight, effectively utilize low latitude space and ensure the safety of circuit
Operation and Stability Analysis of Structures, meet the hyperbola trophy type power transmission line column of electric clearance, span and position dimension.
The purpose of this utility model is to be achieved by the following technical programs.
A kind of hyperbola trophy type power transmission line column generally hyperbolic configuration, the hyperbolic configuration by opening to the left
The second hyperbola branch of first hyperbola branch and opening to the right is formed by fixedly connecting back-to-back, first hyperbola branch
It is symmetrical on central axis with the second hyperbola branch, fasten first hyperbola perpendicular to the tabula face of the central axis
Part and the second hyperbola branch, the gap between first hyperbola branch and the second hyperbola branch are provided with ball
Body, the hyperbolic configuration is provided with upper transmission line cross-arm, middle transmission line cross-arm and the lower transmission line cross-arm being arranged above and below.
Preferably, upper strata I type insulator chain of the upper transmission line cross-arm provided with connection transmission line of electricity.
Preferably, V-type insulator chain of the middle transmission line cross-arm provided with connection transmission line of electricity.
Preferably, lower floor I type insulator chain of the lower transmission line cross-arm provided with connection transmission line of electricity.
Preferably, the angle of oscillation angle of upper strata I types insulator chain and/or lower floor I the type insulator chain is:Wherein, PjFor the blast (N) of insulator chain;P is per phase transmission line of electricity unit
Length wind load (N/m);LhFor horizontal span (m);GjFor the weight (N) of insulator chain;W is per the deadweight of phase transmission line of electricity unit
(N/m);KvTo wave ascent.
The angle of oscillation angle for being preferably located at the lower floor I type insulator chains of the lower transmission line cross-arm is 24.68
Degree, is 29.12 degree positioned at the angle of oscillation angle of the upper strata I type insulator chains of the upper transmission line cross-arm.
Preferably, the lower transmission line cross-arm stretches out 1050 millimeters of horizontal range from hyperbolic configuration, described
Middle transmission line cross-arm stretches out 1180 millimeters of horizontal range from hyperbolic configuration, and the upper transmission line cross-arm is from hyperbolic
Cable architecture stretches out 760 millimeters of horizontal range.
Preferably, between the lower transmission line cross-arm and the middle transmission line cross-arm at a distance of 1080mm it is vertical away from
From at a distance of 1800mm vertical range between the middle transmission line cross-arm and the upper transmission line cross-arm.
Preferably, the gap is provided with supporting construction, and the spheroid is via the supporting construction vertical support.
Preferably, the insulator chain on the two neighboring cross-arm of homonymy is at least spaced the length of an insulator chain.
Preferably, the hyperbolic configuration is made up of high tensile steel tube.
Preferably, the spheroid is made up of resin material.
Preferably, the hyperbolic configuration is integrally formed.
Described above is only the general introduction of technical solutions of the utility model, in order to cause technological means of the present utility model
It is more clearly understood, reaches the degree that those skilled in the art can be practiced according to the content of specification, and in order to
Above and other objects, features and advantages of the present utility model can be become apparent, below with of the present utility model specific
Embodiment is illustrated.
Brief description of the drawings
By reading the detailed description hereafter in preferred embodiment, the various other advantage of the utility model and
Benefit will be clear understanding for those of ordinary skill in the art.Figure of description is only used for showing the mesh of preferred embodiment
, and be not considered as to limitation of the present utility model.It should be evident that drawings discussed below is only of the present utility model
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other accompanying drawings.And in whole accompanying drawing, identical part is presented with like reference characters.
In the accompanying drawings:
Fig. 1 is the structural representation of the hyperbola trophy type power transmission line column according to the utility model one embodiment.
Below in conjunction with drawings and examples, the utility model is further explained.
Embodiment
Specific embodiment of the utility model is more fully described below with reference to accompanying drawings.Although showing this reality in accompanying drawing
With new specific embodiment, it being understood, however, that may be realized in various forms the utility model without that should be illustrated here
Embodiment limited.It is opposite to be able to be best understood from the utility model there is provided these embodiments, and can be by
Scope of the present utility model completely convey to those skilled in the art.
It should be noted that having used some vocabulary to censure specific components among specification and claim.Ability
Field technique personnel it would be appreciated that, technical staff may call same component with different nouns.This specification and right
It is required that not in the way of the difference of noun is used as differentiation component, but differentiation is used as with the difference of component functionally
Criterion."comprising" or " comprising " as mentioned in working as in specification in the whole text and claim are an open language, therefore should be solved
It is interpreted into " include but be not limited to ".Specification subsequent descriptions are implementation better embodiment of the present utility model, the right description
It is for the purpose of the rule of specification, to be not limited to scope of the present utility model.Protection domain of the present utility model
It is defined when depending on the appended claims person of defining.
For ease of the understanding to the utility model embodiment, done further by taking specific embodiment as an example below in conjunction with accompanying drawing
Explanation, and each accompanying drawing does not constitute the restriction to the utility model embodiment.
In order to more fully understand, Fig. 1 is the hyperbola trophy type power transmission line column of one embodiment of the present utility model
Structural representation, the utility model embodiment will be specifically described with reference to Fig. 1.
As shown in figure 1, a kind of hyperbola trophy type power transmission line column generally hyperbolic configuration 1, the hyperbolic configuration 1
It is formed by fixedly connecting back-to-back by the second hyperbola branch 2 of the first hyperbola branch 2 and opening to the right of opening to the left, it is described
First hyperbola branch 2 and the second hyperbola branch 3 are symmetrical on central axis 4, perpendicular to the tabula face of the central axis 4
The 5 fastening hyperbola branch 3 of the first hyperbola branch 2 and second, the hyperbola branch of the first hyperbola branch 2 and second
Gap between 3 is provided with spheroid 6, and the hyperbolic configuration 1 is provided with the upper transmission line cross-arm 7 being arranged above and below, middle transmission of electricity
Circuit cross-arm 8 and lower transmission line cross-arm 9, upper strata I type insulator of the upper transmission line cross-arm 7 provided with connection transmission line of electricity
String 10, V-type insulator chain 11 of the middle transmission line cross-arm 8 provided with connection transmission line of electricity, the lower transmission line cross-arm 9 is set
There is the lower floor I types insulator chain 12 of connection transmission line of electricity.
Hyperbola trophy type power transmission line column of the present utility model generally hyperbolic configuration, eliminate prior art he
Religion, tower body and tower head, are integrally formed hyperbolic configuration and improve reliability and stability, reduce tower body weight, can be certain
Steel index is reduced in degree, construction costs is reduced and improves stability.Hyperbola trophy type power transmission line of the present utility model
Upper strata I type insulator chain 10 of the upper transmission line cross-arm 7 of road tower provided with connection transmission line of electricity, the middle transmission line of electricity is horizontal
V-type insulator chain 11 of the load 8 provided with connection transmission line of electricity, lower floor I of the lower transmission line cross-arm 9 provided with connection transmission line of electricity
Type insulator chain 12, by the effective utilization space of the combination of different insulator chains, limits power transmission circuit caused by windage, further carries
High stability, the spheroid that centre is set can be used as such as mark ball or for arranging other desired equipment.
In one embodiment, the angle of oscillation Φ of the upper strata I types insulator chain 10 and/or lower floor I types insulator chain 12
Angle is:Wherein, PjFor the blast (N) of insulator chain;P is per phase power transmission line
Road unit length wind load (N/m);LhFor horizontal span (m);GjFor the weight (N) of insulator chain;W is per phase transmission line of electricity list
Position deadweight (N/m);KvTo wave ascent.It ensure that line security operation is between transmission line of electricity in electric clearance, span
Distance and defence span in thunderbolt or counterattack wire required for lead, ground wire size positioned opposite.
In one embodiment, positioned at the lower transmission line cross-arm 9 the lower floor I types insulator chain 12 angle of oscillation
Angle is 24.68 degree, and the angle of oscillation angle positioned at the upper strata I types insulator chain 10 of the upper transmission line cross-arm 7 is
29.12 degree, by the further restriction to above-mentioned angle, further ensure line security operation.
In one embodiment, the lower transmission line cross-arm 9 stretches out 1050 millimeters of level from hyperbolic configuration 1
Distance, the middle transmission line cross-arm 8 stretches out 1180 millimeters of horizontal range, the upper power transmission line from hyperbolic configuration 1
Road cross-arm 7 stretches out 760 millimeters of horizontal range from hyperbolic configuration 1, and this shape for being effectively utilized hyperbolic configuration 1 is carried
The space of confession.
In one embodiment, at a distance of 1080mm between the lower transmission line cross-arm 9 and the middle transmission line cross-arm 8
Vertical range, between the middle transmission line cross-arm 8 and the upper transmission line cross-arm 7 at a distance of 1800mm vertical range,
This is further ensured that the necessary safety clearance of tower operating maintenance personnel.
In one embodiment, the gap is provided with supporting construction 13, and the spheroid 6 is via the supporting construction 13
Vertical support, the spheroid 6 can be made up of light material.
In one embodiment, the insulator chain on the two neighboring cross-arm of homonymy is at least spaced the length of an insulator chain
Degree.
In one embodiment, transmission line of alternation current is made up of two parts because of the audible noise that corona is produced:One kind be by
The wideband noise that positive polarity ebb-flow discharge is produced, this is the major part of AC noise;Another is due to that voltage cycle becomes
Change, make the wire pure tone that nearby charged ion back and forth movement is produced, frequency is the frequency multiplication of 50 weeks.The hyperbola trophy type transmission of electricity
The audible noise of circuit tower is met:
In F1, formula:
Z --- the number of phases;
D --- measuring point to tested i phases transmission line of electricity distance;
PWL (i) --- the acoustic power level of i phase transmission lines of electricity, PWL (i) is calculated by F2 formulas:
PWL (i)=- 164.6+120lgEm+55lgdeq, F2,
Wherein:
Em--- conductive line surfaces maximum field strength, kV/cm;
D --- sub-conductor diameter, mm;
Di--- calculate the point distance away from tested wire, m;
deq--- wire equivalent redius, mm, n --- division radical, during n >=3, deq=0.58n0.48d, n≤2
When, deq=d,
The applicable elements of F2 formulas:230~1500kV of voltage class, division radical n≤16, sub- 2≤d of conductor diameter≤
6.5cm。
In one embodiment, further, the audible noise of many phase conductor synthesis can be calculated with following equation:
In formula:
SLA --- overall sound pressure level;
The sound pressure level of SLA (i) --- each wire.
In one embodiment, the hyperbolic configuration 1 is made up of high tensile steel tube.Further, in one embodiment
In, hyperbola trophy type power transmission line column main material uses high tensile steel tube, and oblique material uses high-strength corner iron, and tower integrally uses hyperbolic
Structure is constructed.
Although embodiment of the present utility model is described above in association with accompanying drawing, the utility model does not limit to
In above-mentioned specific embodiments and applications field, above-mentioned specific embodiment be only it is schematical, guiding, without
It is restricted.One of ordinary skill in the art is under the enlightenment of this specification and is not departing from the utility model claim
In the case of the scope protected, the form of many kinds can also be made, these belong to the row of the utility model protection.