CN106300212A - A kind of steel pipe lightning arrester being controlled based on aerodynamic configuration - Google Patents

Abstract

The invention discloses a kind of steel pipe lightning arrester being controlled based on aerodynamic configuration; including; steel pipe discharging rod; described steel pipe discharging rod is installed on the upper surface of object to be protected vertical with described upper surface; multiple anchor ears; the plurality of anchor ear is installed at a predetermined interval to top bottom described steel pipe discharging rod; described anchor ear is used for installing spoiler; and multiple spoiler; it is arranged on each anchor ear of the plurality of anchor ear; it is provided with hole, broken whirlpool on described spoiler, the spoiler in hole, broken whirlpool is set for reducing blast, and be used for suppressing whirlpool to shake generation.On the one hand the technical scheme that the present invention provides, can change the ultimate principle of aerodynamic configuration, by arranging hole, broken whirlpool on spoiler, can strengthen the whirlpool of spoiler and shake control effect, on the other hand also can reduce the blast that spoiler self increases.

Description

A kind of steel pipe lightning arrester being controlled based on aerodynamic configuration

Technical field

The present invention relates to equipment for power transmission and distribution prevent and reduce natural disasters field, control based on aerodynamic configuration more particularly, to one The steel pipe lightning arrester of system.

Background technology

Transformer station's steel pipe discharging rod mostly is the truncated cone-shaped component that single-cantilever supports, along with the continuous increasing of steel pipe air terminal length Adding, slenderness ratio constantly increases, and causes 1 rank of steel pipe discharging rod and the critical wind velocity of 2 rank initiation vortex-induced vibration constantly to reduce.Certainly So boundary often meets under wind friction velocity, steel pipe discharging rod generation beam wind to vortex-induced vibration, the most significantly, high frequency time, can be formed tired The situation that 2 whirlpools, rank of long-pending loss shake is more.In recent years, in Qinghai, Xinjiang, the nor'wester number of days such as Gansu is more and wind-force is steady Fixed area, has caused more steel pipe discharging rod flange in the bottom dish or has connected fixing bolt fatigue fracture accident.By changing The aerodynamic configuration of works, and fundamentally avoid the generation of vortex-induced vibration, it is widely adopted in field of civil engineering.But it is traditional Spoiler be not particularly suited for the steel pipe discharging rod of variable cross-section, and spoiler can increase the quiet blast that works is born, and The structure of original steel pipe discharging rod can be changed.Prior art does not disclose the dress being controlled for steel pipe discharging rod aerodynamic configuration Put.

Summary of the invention

Along with being continuously increased of steel pipe air terminal length, slenderness ratio constantly increases, and causes the steel pipe critical wind of discharging rod starting of oscillation Speed constantly reduces, and steel pipe discharging rod generation beam wind, to vortex-induced vibration, has thus resulted in a lot of steel pipe discharging rod fatigue fracture accident.

In order to solve the problems referred to above, the present invention provides a kind of device, and described device is for being controlled based on aerodynamic configuration Steel pipe lightning arrester, including,

Steel pipe discharging rod, described steel pipe discharging rod is installed on the upper surface of object to be protected vertical with described upper surface,

Multiple anchor ears, install the plurality of anchor ear bottom described steel pipe discharging rod at a predetermined interval to top, described armful Hoop is used for installing spoiler, and

Multiple spoilers, are arranged on each anchor ear of the plurality of anchor ear, and described spoiler is provided with hole, broken whirlpool, if Put the spoiler in hole, broken whirlpool for reducing blast, and be used for suppressing whirlpool to shake generation.

Preferably, it is characterised in that described steel pipe discharging rod external diameter is d, and the plurality of anchor ear is at least 4, and institute State the spoiler installed on each cuff and be at least 3.

Preferably, it is characterised in that described cuff is semi arch structure, the two ends of described cuff are provided with connecting plate, and And described connecting plate is bolted.

Preferably, it is characterised in that the spoiler number arranged on described each cuff is n, and described spoiler is along institute State steel pipe discharging rod circle spacing 360 °/n degree to be uniformly distributed.

Preferably, it is characterised in that described spoiler along the height of steel pipe discharging rod cross-section radial be h, h be described steel pipe The 1/3 of discharging rod outside diameter d；Described spoiler along 2 times that length l that steel pipe discharging rod is axial is described steel pipe discharging rod outside diameter d, In the plurality of cuff, adjacent two cuffs are along 5 times that initial value is described steel pipe discharging rod outside diameter d of axis spacing s.

Preferably, it is characterised in that the algorithm steps generating hole, broken whirlpool includes:

Step 1: stochastic generation each broken whirlpool pore radius, including: the cross section in hole, described each broken whirlpool is that radius differs Circle, by maximum radius r in the cross section in hole, described broken whirlpool_maxIt is set as 0.1h, by formula (1), cutting of hole, stochastic generation broken whirlpool Sequence r of the radius in face_i；

Wherein f (r) is cross section maximum radius r in hole, broken whirlpool_maxMaximum entropy distribution probability density function, λ₀、λ_iFor meeting The coefficient of constraints, λ₀λ_iMaximum likelihood estimate is applied to obtain under constraints by comentropy function；R₁It is predetermined The constraints lower limit of maximum radius, R₂Constraints higher limit for predetermined maximum radius；u_iR () is comentropy letter Number；M is the number of comentropy function；

Step 2: generate hole, broken whirlpool home position coordinate, including: by being uniformly distributed shown in formula (2-1) or (2-2), Generate the home position coordinate (x in hole, broken whirlpool respectively_i,y_i), wherein x_iDistributed area be [r_i,l-r_i],y_iDistributed area be [r_i,h-r_i]；

OrIn formula (2-1) and (2-2), f_x、f_yFor uniformly Distribution probability density function；And

Repeating step 1 and step 2, circulation generates hole, multiple described broken whirlpool.

Preferably, it is characterised in that generating described broken whirlpool radius r_iAnd home position coordinate is (x_i,y_i) described broken After the A of hole, whirlpool, it is further continued for generating described broken whirlpool radius r_i+1And home position coordinate is (x_i+1,y_i+1) described broken whirlpool hole B after, root Judge that described broken whirlpool hole A is the most overlapping with the position of described broken whirlpool hole B according to formula (3)；If formula (3) is set up, the most described broken whirlpool hole A The most overlapping with the position of described broken whirlpool hole B, then accept described broken whirlpool hole B；Otherwise, described broken whirlpool hole B is abandoned；Continue to generate broken whirlpool Hole；

$\sqrt{{(x_i-x_{i+1})}^2+{(y_i-y_{i+1})}^2}-r_i-r_{i+1}>k---\left(3\right)$

In formula (3), k is the minimum spacing between broken whirlpool hole A and the broken whirlpool hole B set.

Preferably, it is characterised in that calculate area sum and the spoiler in the hole, the plurality of broken whirlpool generated according to formula (4) The ratio φ of area, and the maximum perforated area ratio [φ] of ratio φ with setting is compared；If formula (4) is set up, then Exit the step generating hole, described broken whirlpool；Otherwise, continue to generate hole, broken whirlpool.

$\mathrm{\φ}=\frac{\underset{i=1}{\overset{N}{\Σ}}{A}_i}{h\×l}\≥\[\mathrm{\φ}\]---\left(4\right),$

In formula (4), A_iThe perforated area in i-th hole.

Preferably, it is characterised in that the plurality of disturb along the described the plurality of cuff arranged along steel pipe discharging rod axis Stream plate arranges the rotation of different angles on different cuffs, and the relatively next cuff of the spoiler that a upper cuff is arranged sets Putting the spoiler anglec of rotation is 15 °.

Preferably, it is characterised in that indicia line outside the plurality of cuff, when installing the plurality of cuff, institute State indicia line on the same line.

The technical scheme that the present invention provides, can change the ultimate principle of aerodynamic configuration, by arranging broken whirlpool on spoiler On the one hand hole, can strengthen the whirlpool of spoiler and shake control effect, on the other hand also can reduce the blast that spoiler self increases.This The steel pipe lightning arrester of bright offer, clear principle, firmly install, rational in infrastructure, connected mode is convenient reliably, can greatly reduce steel The horizontal whirlpool that pipe discharging rod is subject to shakes destruction, improves the life-span of steel pipe discharging rod, decreases what steel pipe discharging rod was caused by environment Destroy, thus improve the safety of substation equipment.

Accompanying drawing explanation

By reference to the following drawings, the illustrative embodiments of the present invention can be more fully understood by:

Fig. 1 is the lightning arrester structure chart according to embodiment of the present invention；

Fig. 2 is the broken whirlpool pore size distribution figure of the spoiler according to embodiment of the present invention；And

Fig. 3 is that the continuous 3 layers of spoiler according to embodiment of the present invention are along steel pipe circumference mounting structure figure.

Detailed description of the invention

With reference now to accompanying drawing, introduce the illustrative embodiments of the present invention, but, the present invention can be by many different shapes Formula is implemented, and is not limited to embodiment described herein, it is provided that these embodiments are at large and fully disclose The present invention, and the scope of the present invention is fully passed on to person of ordinary skill in the field.For representing showing in the accompanying drawings Term in example embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements uses identical attached Figure labelling.

Except as otherwise noted, person of ordinary skill in the field is had by term used herein (including scientific and technical terminology) Common understand implication.Further it will be understood that the term limited with normally used dictionary, it should it is understood to and it The linguistic context of association area has consistent implication, and is not construed as Utopian or the most formal meaning.

Fig. 1 is the lightning arrester structure chart according to embodiment of the present invention.As it is shown in figure 1, one is entered based on aerodynamic configuration The steel pipe lightning arrester that row controls, including steel pipe discharging rod 101, for being installed on the upper surface of object to be protected and with described Surface is vertical.The most multiple anchor ear of this lightning arrester, installs multiple armfuls at a predetermined interval bottom steel pipe discharging rod 101 to top Hoop, anchor ear is used for installing spoiler 102.And this anchor ear device includes multiple spoiler 102, it is arranged on each of multiple anchor ear In anchor ear, spoiler 102 is provided with hole, broken whirlpool, the spoiler 102 in hole, broken whirlpool is set for reducing blast, and is used for suppressing Whirlpool shakes generation.A kind of steel pipe discharging rod controlled based on aerodynamic configuration that the present invention proposes can change pneumatic based on spoiler 102 The ultimate principle of profile, arranges hole, broken whirlpool on spoiler 102, and on the one hand can strengthen spoiler 102 upsets the effect that whirlpool shakes, On the other hand the blast that spoiler 102 self increases can also be reduced.The steel pipe that a kind of aerodynamic configuration based on the present invention controls is kept away Thunder pin 101 firmly installs, rational in infrastructure, the horizontal whirlpool that steel pipe discharging rod 101 is subject to can be efficiently reduced and shake destruction.

Preferably, steel pipe discharging rod 101 is cone hollow structure, and tapering is 1%-3%, and steel pipe discharging rod 101 is long Degree is 6-9m.The cuff arranged along steel pipe discharging rod 101 is semi arch structure, and the two ends of semi arch are provided with connecting plate, two ends Connecting plate on by bolt, two semi arch cuffs are coupled together, often end is 1-3 for the bolt quantity connected.Cuff The number arranged is relevant to the length of steel pipe discharging rod 101, and steel pipe discharging rod 101 is not typically shorter than 3m, and cuff is minimum is set to 4 Individual.For reaching to upset the effect that whirlpool shakes, at least provided with 3 spoilers 102 on each cuff.Spoiler 102 is along steel pipe discharging rod 101 are uniformly distributed, and when spoiler 102 number arranged on each cuff is n, spoiler 102 is along between steel pipe discharging rod circumference It is uniformly distributed every 360 °/n degree.

Preferably, according to the embodiment of the present invention, spoiler 102 along the height of steel pipe discharging rod 101 cross-section radial is H, h are set as the 1/3 of steel pipe discharging rod 101 outside diameter d；Spoiler 102 is set as steel along length l that steel pipe discharging rod 101 is axial 1 times of pipe discharging rod 101 outside diameter d, in multiple cuffs, adjacent two are set as steel pipe discharging rod 101 along axis spacing s initial value 5 times of outside diameter d.Due to steel pipe discharging rod 101 be cone hollow structure, the outside diameter d value of steel pipe discharging rod 101 from bottom to Top gradually decreases, and upper end minimum outer diameter d is not less than 20mm.

Preferably, according to the embodiment of the present invention, the algorithm generating hole, broken whirlpool includes:

Step 1: stochastic generation broken whirlpool pore radius, including: cross section, hole, broken whirlpool is the circle that multiple radius differs, by broken whirlpool Maximum radius r in hole_maxIt is set as 0.1h, by formula (1), generates the radii sequence r in hole, random broken whirlpool_i；

F (r) is hole, broken whirlpool maximum radius r_maxMaximum entropy distribution probability density function, λ₀、λ_iFor meeting constraints Coefficient, wherein λ₀、λ_iMaximum likelihood estimate is applied to obtain under constraints by comentropy function；R₁For artificial predetermined The constraints lower limit of maximum radius, R₂Constraints higher limit for the most predetermined maximum radius；u_iR () is information Entropy function；M is the number of comentropy function；

Step 2: generate hole, broken whirlpool home position coordinate, including: by being uniformly distributed shown in formula (2-1), (2-2), Generate hole, broken whirlpool home position coordinate (x respectively_i,y_i), wherein x_iDistributed area be [r_i,l-r_i],y_iDistributed area be [r_i,h-r_i]；

OrIn formula (2-1), (2-2), f_x、f_yFor uniformly Distribution probability density function；

Repeating step 1 and step 2, circulation generates hole, multiple described broken whirlpool.Generating algorithm by hole, broken whirlpool, it is possible to generate Broken whirlpool pore radius differs, hole, equally distributed broken whirlpool, position.Meet the distribution in hole, broken whirlpool on spoiler 102.

Preferably, according to the embodiment of the present invention, the present invention hole, broken whirlpool to generating according to hole, broken whirlpool generating algorithm Position is made whether overlapping judgement.Generating broken whirlpool radius r_iAnd home position coordinate is (x_i,y_i) broken whirlpool hole A after, be further continued for Generate broken whirlpool radius r_i+1And home position coordinate is (x_i+1,y_i+1) broken whirlpool hole B after, judge that broken whirlpool hole A is with broken according to formula (3) The position of hole, whirlpool B is the most overlapping；If formula (3) is set up, the most broken whirlpool hole A is the most overlapping with the position of broken whirlpool hole B, then accept hole, broken whirlpool B；Otherwise, broken whirlpool hole B is abandoned；Continue to generate hole, broken whirlpool；

$\sqrt{{(x_i-x_{i+1})}^2+{(y_i-y_{i+1})}^2}-r_i-r_{i+1}>k---\left(3\right)$

In formula (3), k is the minimum spacing between broken whirlpool hole A and the broken whirlpool hole B set.And according to formula (3), it is judged that Between the hole, any two broken whirlpool generated whether overlapping.If newly-generated hole, broken whirlpool is with the hole, all broken whirlpool generated before the most not Overlap, then accept newly-generated hole, broken whirlpool；Otherwise, if overlap occur in newly-generated hole, broken whirlpool and hole, arbitrary broken whirlpool, then Abandon this newly-generated hole, broken whirlpool.By the hole, broken whirlpool generated being carried out overlapping judgement, on final guarantee spoiler 102 arbitrarily The spacing in two holes is more than k.The span of spacing k is 3-15mm.

Preferably, according to the embodiment of the present invention, for ensureing the local pressure requirement of monolithic spoiler 102, Ke Yiqi To the effect of fall blast, the spoiler 102 to different materials, different maximum percent openings is set.As spoiler 102 uses ABS Panel material makes, and the maximum percent opening that the spoiler 102 of this material sets is as 12%.The described many of generation are calculated according to formula (4) The area sum in hole, individual broken whirlpool and the ratio φ of spoiler 102 area, and by the maximum perforated area ratio of ratio φ Yu setting [φ] compares；If formula (4) is set up, then exit the step generating hole, described broken whirlpool；Otherwise, continue to generate hole, broken whirlpool.

$\mathrm{\φ}=\frac{\underset{i=1}{\overset{N}{\Σ}}{A}_i}{h\×l}\≥\[\mathrm{\φ}\]---\left(4\right),$

In formula (4), A_iThe perforated area in i-th hole.According to formula (4), it is judged that the most satisfied local of perforated area is subject to Power requirement, can play the effect of fall blast.Hole, the broken whirlpool gross area as generated has met force request, and the gross area reaches or super Crossing maximum percent opening, then exit generation hole, broken whirlpool generating algorithm, the hole, broken whirlpool of generation is as shown in Figure 2.

Now to embodiments of the present invention concrete example explanation.Such as, 500kV steel pipe discharging rod 101 upper end external diameter 148mm, bottom external diameter 496mm, the long 14.5m of steel pipe discharging rod 101, take away from upper end 1/3 steel pipe discharging rod 101 length, i.e. away from upper Steel pipe discharging rod 101 cross-sectional outer diameter at end 4.8m, as the calculated diameter d of this steel pipe discharging rod 101, this section part diameter d is 264mm.Spoiler 102 elemental height is set at the beginning of the 1/3 of steel pipe discharging rod 101 outside diameter d, i.e. 88mm, spoiler 102 length l Initial value is set to 264mm.On each cuff, spoiler 102 is disposed as 3, is uniformly distributed, respectively along the steel pipe circle spacing 120 degree Individual cuff is set to 5 times of steel pipe discharging rod 101 diameter d, i.e. 1320mm along axis spacing s.Steel pipe discharging rod 101 overall length 14.5m, need to arrange cuff 10 altogether.

Maximum gauge (Fig. 1 is not shown, the refers to Fig. 2) r in hole, broken whirlpool_maxDraft as 0.1h, i.e. 8.8mm, then use such as formula (1) maximum entropy distribution shown in, generates broken whirlpool bore dia random sequence r_i, r_iMinima should be greater than 5mm；Use such as formula (2) institute That shows is uniformly distributed, and generates hole, broken whirlpool home position coordinate x respectively_i,y_i, wherein x_iDistributed area be [r_i,l-r_i],y_iPoint Cloth interval is [r_i,h-r_i]。

Generating broken whirlpool bore dia r_iWith circular position (x_i,y_iAfter), generate broken whirlpool hole A, subsequently generate aperture, broken whirlpool r_i+1With circular position (x_i+1,y_i+1), corresponding generation broken whirlpool hole B, judge that broken whirlpool hole A is the most overlapping with broken whirlpool hole B according to formula (3), As broken whirlpool hole B is not overlapping with broken whirlpool hole A, receive broken whirlpool hole B, continue to generate broken whirlpool hole C, and judge respectively broken whirlpool hole C whether with Hole A or broken whirlpool, broken whirlpool hole B meets the spacing requirement more than 3mm, and the rest may be inferred in the generation in other holes, broken whirlpool.

Spoiler 102 uses ABS plate material to make, it is considered to the local pressure requirement of monolithic spoiler 102, the maximum drafted Hole, broken whirlpool percent opening is 12%, and monolithic spoiler 102 area is 23232mm², after generating 19 holes, the perforate gross area Reach 2828mm², percent opening has reached 12.1%, it is possible to decrease blast about 40%.Judge according to formula (4), perforated area Whether meet the requirement of fall blast, exit the circulation of generation hole, broken whirlpool.The hole, broken whirlpool ultimately generated is as shown in Figure 2.

Preferably, along multiple cuffs of steel pipe discharging rod 101 axis setting, multiple spoilers 102 set on different cuffs Putting the rotation of different angles, the spoiler 102 that a upper cuff is arranged arranges spoiler 102 on next cuff and rotates Angle is 5 °, 10 °, 15 °, 25 °, or be 5 ° to the angle between 360 °/n, being rotated up to angle less than 360 °/n, n is Spoiler 102 number.Owing to the wind direction in nature is random, spoiler 102 is required to the wake flow on each wind direction Wind is upset.Therefore, according to the embodiment of the present invention, multiple cuffs that the present invention arranges along steel pipe discharging rod 101 axis On spoiler 102 should rotate a certain angle relative to the spoiler 102 of previous cuff that (Fig. 1 is not shown, refers to figure 3).Indicia line outside multiple cuffs, when installing multiple cuff, indicia line is on the same line.Set is being installed During hoop, select azimuth on the basis of one party parallactic angle, the mark line alignment orientation angle of the 1st cuff；The mark line pair of the 2nd cuff Quasi-azimuth, the spoiler 102 on the 2nd cuff relative to the spoiler 102 on the 1st cuff rotate 5 °, 10 °, 15 °, 25 °, or be 5 ° to the angle between 360 °/n, or be rotated up to angle less than 360 °/n；The mark line pair of the 3rd cuff Quasi-azimuth, the spoiler 102 on the 3rd cuff relative to the spoiler 102 on the 2nd cuff rotate 5 °, 10 °, 15 °, 25 °, or be 5 ° to the angle between 360 °/n, or be rotated up to angle less than 360 °/n；Other each cuff and flow-disturbings Plate 102 the rest may be inferred install.

Fig. 2 is hole 202, the spoiler 201 broken whirlpool scattergram according to embodiment of the present invention.Preferably, according to the present invention's Embodiment, spoiler 201 is that h, h are set as the 1/3 of steel pipe discharging rod outside diameter d along the height of steel pipe discharging rod cross-section radial； Spoiler 201 is set as 1 times of steel pipe discharging rod outside diameter d along length l that steel pipe discharging rod is axial, in multiple cuffs adjacent two 5 times of steel pipe discharging rod outside diameter d it are set as along axis spacing s initial value.

Preferably, according to the embodiment of the present invention, the algorithm generating hole, broken whirlpool 202 includes:

Step 1: hole 202, stochastic generation broken whirlpool radius, including: cross section, hole 202, broken whirlpool is the circle that multiple radius differs, Maximum radius r by hole, broken whirlpool 202_maxIt is set as 0.1h, by formula (1), generates the radii sequence r in hole, random broken whirlpool 202_i；

F (r) is hole 202, broken whirlpool maximum radius r_maxMaximum entropy distribution probability density function, λ₀、λ_iFor meeting constraints Coefficient, wherein λ₀、λ_iMaximum likelihood estimate is applied to obtain under constraints by comentropy function；R₁For artificial pre- The constraints lower limit of fixed maximum radius, R₂Constraints higher limit for the most predetermined maximum radius；u_iR () is letter Breath entropy function；M is the number of comentropy function；

Step 2: generate hole 202, broken whirlpool home position coordinate, including: by uniformly dividing shown in formula (2-1), (2-2) Cloth, generates hole 202, broken whirlpool home position coordinate (x respectively_i,y_i), wherein x_iDistributed area be [r_i,l-r_i],y_iAreal area Between be [r_i,h-r_i]；

OrIn formula (2-1), (2-2), f_x、f_yFor uniformly Distribution probability density function；

Repeating step 1 and step 2, circulation generates hole, multiple described broken whirlpool 202.By the generating algorithm in hole, broken whirlpool 202, energy Enough generate hole 202, broken whirlpool radius to differ, hole, equally distributed broken whirlpool, position 202.Meet hole, broken whirlpool 202 on spoiler 201102 Distribution.

Preferably, according to the embodiment of the present invention, the present invention hole, broken whirlpool to generating according to hole 202, broken whirlpool generating algorithm The position of 202 is made whether overlapping judgement.Generating broken whirlpool radius r_iAnd home position coordinate is (x_i,y_i) broken whirlpool hole 202A After, it is further continued for generating broken whirlpool radius r_i+1And home position coordinate is (x_i+1,y_i+1) broken whirlpool hole 202B after, according to formula (3) judge Broken whirlpool hole 202A is the most overlapping with the position of broken whirlpool hole 202B；If formula (3) is set up, the most broken whirlpool hole 202A and broken whirlpool hole 202B's Position is the most overlapping, then accept broken whirlpool hole 202B；Otherwise, broken whirlpool hole 202B is abandoned；Continue to generate hole, broken whirlpool 202；

$\sqrt{{(x_i-x_{i+1})}^2+{(y_i-y_{i+1})}^2}-r_i-r_{i+1}>k---\left(3\right)$

In formula (3), k is the minimum spacing between broken whirlpool hole 202A and the broken whirlpool hole 202B set.And according to formula (3), it is judged that the most overlapping between the hole, any two broken whirlpool 202 of generation.If newly-generated hole, broken whirlpool 202 with generate before Hole 202, all broken whirlpools is the most overlapping, then accept newly-generated hole, broken whirlpool 202；Otherwise, if newly-generated hole, broken whirlpool 202 and it There is overlap in front hole, arbitrary broken whirlpool 202, then abandon this newly-generated hole, broken whirlpool 202.By the hole, broken whirlpool 202 generated is carried out Overlapping judgement, on final guarantee spoiler 201, the spacing in any two hole is more than k.The span of spacing k is 3-15mm.

Preferably, according to the embodiment of the present invention, for ensureing the local pressure requirement of monolithic spoiler 201, Ke Yiqi To the effect of fall blast, the spoiler 201 to different materials, different maximum percent openings is set.As spoiler 201 uses ABS Panel material makes, and the maximum percent opening that the spoiler 201 of this material sets is as 12%.The described many of generation are calculated according to formula (4) The area sum in hole, individual broken whirlpool 202 and the ratio φ of spoiler 201 area, and by the maximum perforated area ratio of ratio φ with setting Rate [φ] compares；If formula (4) is set up, then exit the step generating hole, described broken whirlpool 202；Otherwise, continue to generate broken whirlpool Hole 202.

$\mathrm{\φ}=\frac{\underset{i=1}{\overset{N}{\Σ}}{A}_i}{h\×l}\≥\[\mathrm{\φ}\]---\left(4\right),$

In formula (4), A_iThe perforated area in i-th hole.According to formula (4), it is judged that the most satisfied local of perforated area is subject to Power requirement, can play the effect of fall blast.Hole 202, the broken whirlpool gross area as generated has met force request, and the gross area reaches Or exceed maximum percent opening, then exit generation hole 202, broken whirlpool generating algorithm, the hole, broken whirlpool 202 of generation is as shown in Figure 2.

Now to embodiments of the present invention concrete example explanation.Such as, 500kV steel pipe discharging rod upper end external diameter 148mm, the end End external diameter 496mm, the long 14.5m of steel pipe discharging rod, take away from upper end 1/3 steel pipe air terminal length, and i.e. at the 4.8m of upper end, steel pipe is kept away Thunder pin cross-sectional outer diameter, as the calculated diameter d of this steel pipe discharging rod, this section part diameter d is 264mm.Spoiler 201 is initial high Degree is set to the 1/3 of steel pipe discharging rod outside diameter d, i.e. 88mm, and spoiler 201 length l initial value is set to 264mm.Each cuff Upper spoiler 201 is disposed as 3, is uniformly distributed along the steel pipe circle spacing 120 degree, and each cuff is set to along axis spacing s 5 times of steel pipe discharging rod diameter d, i.e. 1320mm.Steel pipe discharging rod 101 overall length 14.5m, need to arrange cuff 10 altogether.

The maximum gauge r in hole, broken whirlpool 202_maxDraft as 0.1h, i.e. 8.8mm, then use the maximum entropy as shown in formula (1) Distribution, generates hole 202, broken whirlpool diameter random sequence r_i, r_iMinima should be greater than 5mm；Use uniformly dividing as shown in formula (2) Cloth, generates hole 202, broken whirlpool home position coordinate x respectively_i,y_i, wherein x_iDistributed area be [r_i,l-r_i],y_iDistributed area For [r_i,h-r_i]。

Generating hole 202, broken whirlpool diameter r_iWith circular position (x_i,y_iAfter), generate broken whirlpool hole 202A, subsequently generate broken whirlpool Hole 202 footpath r_i+1With circular position (x_i+1,y_i+1), corresponding generation broken whirlpool hole 202B, judge that broken whirlpool hole 202A is with broken according to formula (3) 202B is the most overlapping for hole, whirlpool, as broken whirlpool hole 202B is not overlapping with broken whirlpool hole 202A, receives broken whirlpool hole 202B, continues to generate hole, broken whirlpool 202C, and judge whether broken whirlpool hole 202C meets the spacing requirement more than 3mm with hole 202A or broken whirlpool, broken whirlpool hole 202B respectively, its The rest may be inferred in his generation in hole, broken whirlpool 202.

Spoiler 201 uses ABS plate material to make, it is considered to the local pressure requirement of monolithic spoiler 201, the maximum drafted Hole 202, broken whirlpool percent opening is 12%, and monolithic spoiler 201 area is 23232mm², after generating 19 holes, the total face of perforate Amass and reached 2828mm², percent opening has reached 12.1%, it is possible to decrease blast about 40%.Judge according to formula (4), perforate face The long-pending requirement whether meeting fall blast, exits generation hole, broken whirlpool 202 and circulates.The hole, broken whirlpool 202 ultimately generated is as shown in Figure 2.

Fig. 3 is that the continuous 3 layers of spoiler according to embodiment of the present invention are along steel pipe circumference mounting structure figure.Preferably, edge On multiple cuffs that steel pipe discharging rod axis is arranged, multiple spoilers arrange the rotation of different angles on different cuffs, upper one Arranging the spoiler anglec of rotation on the relatively next cuff of the spoiler arranged on cuff is 5 °, 10 °, 15 °, 25 °, or is 5 ° Angle between 360 °/n, being rotated up to angle less than 360 °/n, n is spoiler number.Due to the wind direction in nature Being random, spoiler is required to upset the wake flow wind on each wind direction.Therefore, according to the embodiment party of the present invention Formula, the spoiler on multiple cuffs that the present invention arranges along steel pipe discharging rod axis should be relative to the spoiler of previous cuff Rotate a certain angle (Fig. 1 is not shown, refers to Fig. 3).Indicia line outside multiple cuffs, when installing multiple cuff, Indicia line is on the same line.When installing cuff, select azimuth on the basis of one party parallactic angle, the labelling of the 1st cuff Line 312 alignment orientation angle；The mark line 322 alignment orientation angle of the 2nd cuff, the spoiler 323 on the 2nd cuff is relative to Spoiler 313 on 1 cuff rotates 5 °, 10 °, 15 °, 25 °, or be 5 ° to the angle between 360 °/n, or be rotated up to Angle is less than 360 °/n；The mark line 332 alignment orientation angle of the 3rd cuff, the spoiler 333 on the 3rd cuff relative to Spoiler 323 on 2nd cuff rotates 5 °, 10 °, 15 °, 25 °, or be 5 ° to the angle between 360 °/n, or rotate Wide-angle is less than 360 °/n；Other each cuffs and spoiler the rest may be inferred install.

The technical scheme that the present invention provides, can change the ultimate principle of aerodynamic configuration, by arranging broken whirlpool on spoiler On the one hand hole, can strengthen the whirlpool of spoiler and shake control effect, on the other hand also can reduce the blast that spoiler self increases.This The steel pipe lightning arrester of bright offer, clear principle, firmly install, rational in infrastructure, connected mode is convenient reliably, can greatly reduce steel The horizontal whirlpool that pipe discharging rod is subject to shakes destruction, improves the life-span of steel pipe discharging rod, decreases what steel pipe discharging rod was caused by environment Destroy, thus improve the safety of substation equipment.

By describing the present invention with reference to a small amount of embodiment.But, known in those skilled in the art, as Subsidiary Patent right requirement is limited, except the present invention other embodiment disclosed above falls equally the present invention's In the range of.

Normally, all terms used in the claims are all solved in the usual implication of technical field according to them Release, unless additionally defined clearly wherein.All of reference " one/described/be somebody's turn to do [device, assembly etc.] " is all opened ground It is construed at least one example in described device, assembly etc., unless otherwise expressly specified.Any method disclosed herein Step all need not be run, unless explicitly stated otherwise with disclosed order accurately.

Claims (10)

1. the steel pipe lightning arrester being controlled based on aerodynamic configuration, including,

Steel pipe discharging rod, described steel pipe discharging rod is installed on the upper surface of object to be protected vertical with described upper surface,

Multiple anchor ears, install the plurality of anchor ear bottom described steel pipe discharging rod at a predetermined interval to top, and described anchor ear is used In installing spoiler, and

Multiple spoilers, are arranged on each anchor ear of the plurality of anchor ear, described spoiler is provided with hole, broken whirlpool, arranges broken The spoiler in hole, whirlpool is used for reducing blast, and is used for suppressing whirlpool to shake generation.

Device the most according to claim 1, it is characterised in that described steel pipe discharging rod external diameter is d, and the plurality of anchor ear is extremely It is 4 less, and the spoiler installed on described each cuff is at least 3.

Device the most according to claim 2, it is characterised in that described cuff is semi arch structure, the two ends of described cuff It is provided with connecting plate, and described connecting plate is bolted.

Device the most according to claim 2, it is characterised in that the spoiler number arranged on described each cuff is n, Described spoiler is uniformly distributed along described steel pipe discharging rod circle spacing 360 °/n degree.

Device the most according to claim 2, it is characterised in that described spoiler is along the height of steel pipe discharging rod cross-section radial For h, h are described steel pipe discharging rod outside diameter d 1/3；Described spoiler is that described steel pipe is kept away along length l that steel pipe discharging rod is axial 2 times of thunder pin outside diameter d, in the plurality of cuff, adjacent two cuffs are described steel pipe discharging rod along the initial value of axis spacing s 5 times of outside diameter d.

Device the most according to claim 5, it is characterised in that the algorithm steps generating hole, broken whirlpool includes:

Step 1: stochastic generation each broken whirlpool pore radius, including: the cross section in hole, described each broken whirlpool is the circle that radius differs, Maximum radius r by the cross section in hole, described broken whirlpool_maxIt is set as 0.1h, by formula (1), the cross section in hole, stochastic generation broken whirlpool Sequence r of radius_i；

Wherein f (r) is cross section maximum radius r in hole, broken whirlpool_maxMaximum entropy distribution probability density function, λ₀、λ_iFor meeting constraint The coefficient of condition, λ₀λ_iMaximum likelihood estimate is applied to obtain under constraints by comentropy function；R₁For predetermined The constraints lower limit of large radius, R₂Constraints higher limit for predetermined maximum radius；u_iR () is comentropy function；m Number for comentropy function；

Step 2: generate hole, broken whirlpool home position coordinate, including: by being uniformly distributed shown in formula (2-1) or (2-2), respectively Generate the home position coordinate (x in hole, broken whirlpool_i,y_i), wherein x_iDistributed area be [r_i,l-r_i],y_iDistributed area be [r_i, h-r_i]；

OrIn formula (2-1) and (2-2), f_x、f_yFor being uniformly distributed Probability density function；And

Repeating step 1 and step 2, circulation generates hole, multiple described broken whirlpool.

Device the most according to claim 6, it is characterised in that generating described broken whirlpool radius r_iAnd home position coordinate is (x_i,y_i) described broken whirlpool hole A after, be further continued for generating described broken whirlpool radius r_i+1And home position coordinate is (x_i+1,y_i+1) institute After stating broken whirlpool hole B, judge that described broken whirlpool hole A is the most overlapping with the position of described broken whirlpool hole B according to formula (3)；If formula (3) becomes Vertical, the most described broken whirlpool hole A is the most overlapping with the position of described broken whirlpool hole B, then accept described broken whirlpool hole B；Otherwise, described broken whirlpool is abandoned Hole B；Continue to generate hole, broken whirlpool；

$\sqrt{{(x_i-x_{i+1})}^2+{(y_i-y_{i+1})}^2}-r_i-r_{i+1}>k---\left(3\right)$

In formula (3), k is the minimum spacing between broken whirlpool hole A and the broken whirlpool hole B set.

Device the most according to claim 6, it is characterised in that calculate the hole, the plurality of broken whirlpool of generation according to formula (4) Area sum and the ratio φ of spoiler area, and the maximum perforated area ratio [φ] of ratio φ with setting is compared； If formula (4) is set up, then exit the step generating hole, described broken whirlpool；Otherwise, continue to generate hole, broken whirlpool.

$\mathrm{\φ}=\frac{\underset{i=1}{\overset{N}{\mathrm{\Σ}}}{A}_i}{h\×l}\≥\[\mathrm{\φ}\]---\left(4\right),$

In formula (4), A_iThe perforated area in i-th hole.

Device the most according to claim 2, it is characterised in that the described the plurality of set arranged along steel pipe discharging rod axis On hoop, the plurality of spoiler arranges the rotation of different angles on different cuffs, and the spoiler that a upper cuff is arranged is relative Arranging the spoiler anglec of rotation on next cuff is 15 °.

Device the most according to claim 2, it is characterised in that indicia line outside the plurality of cuff, is installing institute When stating multiple cuff, described indicia line is on the same line.