CN204834258U - High pressure, hollow current limiting reactor of superhigh pressure dry -type - Google Patents

Abstract

The utility model relates to a high pressure, hollow current limiting reactor of superhigh pressure dry -type, reactor main part (1) is including coil (10), rain -proof cap (20) and make up davit (11), and reactor main part (1) is supported by insulating pillar (30), the upper portion and the bottom of reactor main part (1) all are equipped with magnetic field shielding spare (40), and magnetic field shielding spare (40) are including upper portion reactor main part corona ring (41) and lower part reactor main part corona ring (42) to the problem that reactor main part and auxiliary take place the electricity generation has been solved under the high voltage. Insulating pillar (30) including post insulators (31) and metal support (33), and metal support (33) and post insulators (31) through epoxy dull and stereotyped (73) and insulation bolted connection, satisfied requirement to ground insulation level and support, reduce the magnetic leakage and satisfy the requirement of auxiliary temperature. The utility model discloses a reactor can satisfy the requirement to voltage, current distribution, insulation level and short -time current of 220kV, 500kV electric wire netting.

Description

High pressure, ultrahigh pressure dry hollow current-limiting reactor

Technical field

The utility model relates to tranformer protection equipment technical field, in particular to a kind of high pressure, ultrahigh pressure dry hollow current-limiting reactor.

Background technology

Along with the develop rapidly of intelligent grid, in recent years, 500kV electrical network is increasingly dense.Along with the change of trend distribution, what the short circuit current of multiple 500kV transformer station exceeded current circuit breaker 63kA covers electric current, and the transformer station close to this short circuit current is then more.

According to current 500kV extra high voltage circuit breaker manufacturing technology, the limit operation-current of state's inner breaker is 63kA.For this reason, 500kV system maximum short circuit current must control at below 63kA, if when system short-circuit electric current is close to this limiting value, must take measures in advance, as can not be effectively controlled, not only can have influence on the safe and stable operation of system, also can the expansion of direct influential system capacity, can not adapt to and meet the development of the national economy and people's lives.

The Large Copacity current-limiting reactor of taking to connect in electrical network is the effective means of limiting short-circuit current, can effectively restriction system short circuit current, guarantee major network reliability service.Installing current limiting reactor at present additional is the easiest, economical, the measure reliably that maintain power grid operation.500kV website needs to set up this equipment to tackle the comprehensive excessive problem of increasingly serious short circuit current.

Ultrahigh pressure dry hollow current-limiting reactor can be series at bus or line side, and its Analysis of End Electric Field is concentrated, and insulation level is all far above ordinary reactors.Be different from the connected mode of conventional shunt reactor or filtering reactor, this type of reactor is generally difficult to out of service, also just has higher requirement to equipment dependability like this.

Further, ultrahigh pressure dry hollow current-limiting reactor is in ultrahigh-voltage alternating-current system, and with the short circuit current of answering system, reactor voltage grade is high, and leakage field is large.Leakage field causes the auxiliary that reactor uses and has a strong impact on, and auxiliary can be caused to generate heat more than 300 DEG C.High voltage causes the insulation of reactor inside and outside and has a strong impact on, and needs to increase built-in electrical insulation intensity, increases electric field shielding measure in outside.The electrodynamic impact that reactor main body and insulation column will have the short circuit current of enough large intensity answering system to be formed.Therefore, rationally, scientifically equal laminated structure is set, insulation column structure, improves the support strength of reactor main body and post insulator, the safe and reliable operation carrying superhigh pressure current limiting reactor is significant.Also there are the problems referred to above in this type of reactor of 220kV system.In addition, also there is other technological deficiency in reactor of the prior art, particular content is as described below.

Such as Authorization Notice No. is the Chinese invention patent of CN100570763C, it discloses a kind of 35 kv 3-phase dry type hollow current-limiting reactors, comprise coil, insulating cylinder, up and down supporting plate, the coil of reactor adopts the copper stranded conductor outside of many fine copper wire compositions to be surrounded by insulating barrier, all scribbles epoxy curing agent outside every layer line circle; Between every layer line circle, be provided with F class F insulation cold-drawn air channel bar, its upper and lower end parts is provided with end insulation, and end insulation thickness is identical with diameter of wire; Bar is worn through air channel bar and end insulation, by air channel bar riveting in end insulation and supporting plate by insulation.Have that simple and reasonable, Short Circuit withstand current capacity is strong, good electric property, volume are little, lightweight, loss is little, the advantage of low noise.But when this dry type hollow current-limiting reactor is in ultrahigh-voltage alternating-current system, with the short circuit current of answering system, reactor voltage grade is high, there will be the situation that leakage field is large.

Such as publication number is the patent of invention of CN101599345A again, it discloses a kind of dry-type hollow current-limiting capacity regulating reactor, is serially connected in electric power system main transformer loop and uses, belong to tranformer protection equipment technical field.It comprises mounting base, the first high-tension insulator and the first coil, first high-tension insulator is connected with mounting base, first coil is positioned on the first high-tension insulator, and the second high-tension insulator is positioned on described first coil, and the second coil is positioned on the second high-tension insulator; The two ends of described first coil are the first end of incoming cables and the first leading-out terminal respectively, and the two ends distribution of described second coil is the second end of incoming cables and the second leading-out terminal, and the first end of incoming cables, the second end of incoming cables, the first leading-out terminal and the second leading-out terminal are all positioned on aluminium conductive arm.The inductance of this invention is variable, reaches inductance value required when different load changes; Electric current also can with curent change in system respective change, make short circuit current can be down to the permissible value of equipment thereafter at any time; Easy to install and use, by connecting the change of branch road on one group of reactor, and curent change and the inductance change of reactor can be realized.Reactor in this invention is selected and is series at bus or line side, its Analysis of End Electric Field is concentrated, insulation level is all far above ordinary reactors, be different from the connected mode of conventional shunt reactor or filtering reactor, this type of reactor is generally difficult to out of service, if will address this problem, the cost dropped into is higher.

Utility model content

The purpose of this utility model is to provide a kind of high pressure, ultrahigh pressure dry hollow current-limiting reactor, solve prior art mesohigh, superhigh pressure can not effectively control system circuital current be excessive, have influence on the technical problem of the safe and stable operation of system, the directly expansion of influential system capacity.

In order to realize above-mentioned purpose of design, the scheme that the utility model adopts is as follows:

According to a kind of high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor, comprise reactor main body and comprise coil, rainhat and multiple combination arm, described reactor main body is supported by multiple insulation column; The top of reactor main body and bottom are equipped with electric field shielding part, and electric field shielding part comprises top reactor main body corona ring and bottom reactor main body corona ring, to solve reactor main body and the too high problem of auxiliary local field strength under high voltage.Reactor of the present utility model can meet the requirement of 220kV, 500kV electrical network to voltage, CURRENT DISTRIBUTION, insulation level and short time current.

Preferably, described insulation column comprises post insulator and special-shaped transition bearing, and special-shaped transition bearing is connected with insulated bolt by epoxy flat board with post insulator.Meet the requirement of insulation against ground level and support, reduce leakage field and meet the requirement of auxiliary temperature.

In above-mentioned either a program preferably, the top of described post insulator, with metal flange, is provided with a circle insulator corona ring outside this metal flange.

In above-mentioned either a program preferably, described rainhat is connected and fixed by multiple support bar and reactor inside top wall.

In above-mentioned either a program preferably, described rainhat links together with combination arm.

In above-mentioned either a program preferably, described multiple combination arm is circumferentially uniformly distributed, and multiple combination arm and center hub are welded to form reactor suspension bracket.

In above-mentioned either a program preferably, described combination arm comprises aluminium alloy plate and corrosion resistant plate.

In above-mentioned either a program preferably, described aluminium alloy plate passes through together with rivet interlacement with corrosion resistant plate.

In above-mentioned either a program preferably, be fixed together by lacing wire and the horizontal binding strap of multiple tracks between every two combination arms.

Aluminium alloy plate and corrosion resistant plate pass through together with multiple rivet interlacement, and employing stainless steel and its reason of aluminum alloy materials are: stainless intensity is higher than aluminum alloy materials, and resistivity will much larger than aluminum alloy materials; Can be conducted electricity by aluminium alloy plate; Corrosion resistant plate increases structural strength, reduces the volume of aluminium alloy arm, reduces the loss of arm, prevent hardware from generating heat.

In above-mentioned either a program preferably, the lower end of described rainhat is provided with the anti-bird grid of sidepiece.

In above-mentioned either a program preferably, the edge of described rainhat is provided with multiple rainhat corona ring and multiple equipotential line; The body outer surface of rainhat is provided with multiple overlap joint mouth corona ring and multiple bolt shielding cap, and shielding cap is set on fastening bolt, prevents the corner discharge of fastening bolt.

In above-mentioned either a program preferably, the anti-bird grid of described sidepiece comprise bird-proof cover and bird prevention net.

In above-mentioned either a program preferably, described bird-proof cover is the circular ring of bottom inwardly in 90 degree of bendings, and circular ring is that a completely circular structure or multiple arc section are spliced into a completely circular structure; 90 degree of bending parts of bird-proof cover and bird prevention net overlap.

In above-mentioned either a program preferably, the lap-joint of described bird-proof cover and bird prevention net is connected and fixed by epoxy plate pressure ring.

In above-mentioned either a program preferably, described epoxy plate pressure ring is circular ring, and the arc plate identical by two or more structure forms.

Certain gap is left between the coil of reactor main body and blimp.In order to prevent the animals such as birds from entering into the inside of reactor by this gap, between coil and blimp, installing anti-bird grid additional, ensure that the charged stable operation of reactor; By cell structure, reactor hot gas is discharged, ensure its cooling requirements.

In above-mentioned either a program preferably, the bottom of described reactor main body is provided with the anti-bird grid in bottom.

In above-mentioned either a program preferably, the anti-bird grid in described bottom are positioned at the bottom of reactor middle hollow cylinder, and under being overlapped on reactor on arm; Bird prevention net is that a completely circular structure or multiple part are spliced into a completely circular structure.

In above-mentioned either a program preferably, the entirety of the anti-bird grid in described bottom is circular, and inside is latticed; Under the anti-bird grid in bottom and reactor, the overlapping part of arm adopts the organdy colligation of soaking room-temperature curing epoxy, thus is tightened together with arm under reactor by anti-for bottom bird grid.

The anti-bird grid in bottom are positioned at the bottom of reactor middle hollow cylinder, and under being overlapped on reactor on arm, birds vacancy from dry reactor effectively can being stoped to enter reactor inside, meet the cooling requirements of reactor simultaneously; The anti-bird grid in bottom are that a completely circular structure or multiple part are spliced into a completely circular structure, are applicable to the air core reactor of different model.

In above-mentioned either a program preferably, syndeton is provided with between described reactor main body and insulation column.

In above-mentioned either a program preferably, described syndeton comprises stainless steel support plate and transition seat, and transition seat is two L-type plates, and a side plate of L-type plate has U-shaped mouth, and this U-shaped mouth is facing to reactor center.

In above-mentioned either a program preferably, described stainless steel support plate has two groups of through holes, in the through hole of one group, left side, be provided with the stainless steel bolt that cover has heat-shrink tube; Stainless steel bolt is provided with in the one group of through hole in right side.

In above-mentioned either a program preferably, be closely wrapped on stainless steel bolt after described heat-shrink tube heating.

Stainless steel support plate has two groups of through holes, one group, right side through hole is connected with the bottom of reactor body by stainless steel bolt; The one group of through hole cover in left side has the stainless steel bolt of heat-shrink tube to be connected with the bottom of reactor body, closely be wrapped on bolt after heat-shrink tube heating, the special-shaped transition bearing making cover have the metallic member of the stainless steel bolt of heat-shrink tube not support with AC reactor contacts, and the special-shaped transition bearing that the eddy current on stainless steel support plate is supported by two stainless steel bolts and the AC reactor in left side separates; Electric current on stainless steel support plate can only be delivered to the special-shaped transition bearing of AC reactor support by two of a right side stainless steel bolt.

In above-mentioned either a program preferably, epoxy pad is provided with between described stainless steel support plate and the special-shaped transition bearing of insulation column.

In above-mentioned either a program preferably, described left side stainless steel bolt is provided with stainless steel nut, stainless steel plain cushion, stainless steel bomb pad and epoxy plain cushion from top to bottom successively.

In above-mentioned either a program preferably, described left side stainless steel bolt is dull and stereotyped through epoxy.

Epoxy pad is provided with between stainless steel support plate and special-shaped transition bearing, the special-shaped transition bearing that epoxy pad makes the stainless steel support plate of reactor and AC reactor support separates, the special-shaped transition bearing that the stainless steel support plate of reactor is supported by epoxy pad and AC reactor separates, directly can not contact, thus avoid between stainless steel support plate and transition seat, special-shaped transition bearing, forming closed metallic(return) circuit.

In above-mentioned either a program preferably, described coil has multiple encapsulated layer, is provided with air duct slats between each encapsulated layer.

In above-mentioned either a program preferably, described air duct slats is T font; Air duct slats has the first support arm and second support arm of support coils.

In above-mentioned either a program preferably, described first support arm is vertical with the second support arm; First support arm and coil contact.

In above-mentioned either a program preferably, the contact site of described first support arm and coil is provided with down arc structure.

The coil of reactor main body has multiple encapsulated layer, along with volume and encapsulating the increasing of the number of plies, internal stress between each encapsulated layer is very large, if the air duct slats between each encapsulated layer adopts rectangular ventilation bar easily to cause " bar " phenomenon, namely, in the process of coiling, air duct slats easily collapses due to stress and does not play the effect supporting next encapsulated layer.

Accompanying drawing explanation

Fig. 1 is the structural representation of the preferred embodiment according to high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor.

Fig. 2 is the structural representation of the embodiment illustrated in fig. 1 middle rainhat according to high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor.

Fig. 3 is the vertical view of the embodiment illustrated in fig. 1 middle rainhat according to high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor.

Fig. 3-1 is the front view rainhat embodiment illustrated in fig. 1 according to high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor installing the anti-bird grid of sidepiece additional.

Fig. 3-2 is the cutaway view of Fig. 3-1 illustrated embodiment according to high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor.

Fig. 3-3 is sidepiece anti-bird grid front view in Fig. 3-1 illustrated embodiment according to high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor.

Fig. 3-4 is the vertical view of the anti-bird grid of sidepiece in Fig. 3-1 illustrated embodiment according to high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor.

Fig. 3-5 installs the anti-bird grid vertical view in bottom additional in the embodiment illustrated in fig. 1 middle reactor main body according to high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor.

Fig. 3-6 is the vertical view of the anti-bird grid in bottom in Fig. 3-5 illustrated embodiment according to high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor.

Fig. 4 is the structural representation of the embodiment illustrated in fig. 1 middle insulation column according to high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor.

Fig. 5 is the stereogram of the embodiment illustrated in fig. 4 middle syndeton according to high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor.

Fig. 5-1 is the broken away view of the embodiment illustrated in fig. 5 middle right side stainless steel bolt according to the syndeton for special-shaped transition seat and stainless steel support plate in reactor of the present utility model.

Fig. 5-2 is the structural representation of the embodiment illustrated in fig. 5 middle stainless steel support plate according to the syndeton for special-shaped transition seat and stainless steel support plate in reactor of the present utility model.

Fig. 5-3 is the structural representation of the embodiment illustrated in fig. 5 middle epoxy flat board according to the syndeton for special-shaped transition seat and stainless steel support plate in reactor of the present utility model.

Fig. 5-4 is the structural representation of the embodiment illustrated in fig. 5 middle special-shaped transition bearing according to the syndeton for special-shaped transition seat and stainless steel support plate in reactor of the present utility model.

Fig. 6 be according to high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor embodiment illustrated in fig. 1 in install the structural representation of electric field shielding part additional.

Fig. 7 is the structural representation of the embodiment illustrated in fig. 1 middle combination arm according to high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor.

Fig. 7-1 is the front view embodiment illustrated in fig. 7 according to high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor.

Fig. 7-2 is the vertical view embodiment illustrated in fig. 7 according to high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor.

Fig. 7-3 is the assembling schematic diagram of the embodiment illustrated in fig. 7 and reactor according to high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor.

Fig. 8 is according to the air duct slats structural representation on the embodiment illustrated in fig. 1 middle reactor winding of high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor.

Embodiment

In order to understand according to high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor better, below in conjunction with accompanying drawing, the specific embodiment according to high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor is described.

Shown in figure 1, Fig. 6, according to the structural representation of high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor.

High pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor, comprise reactor main body 1 and comprise coil 10, rainhat 20 and multiple combination arm 11, described reactor main body 1 is supported by multiple insulation column 30; The top of reactor main body 1 and bottom are equipped with electric field shielding part 40, and electric field shielding part 40 comprises top reactor main body corona ring 41 and bottom reactor main body corona ring 42, to solve reactor main body and auxiliary under high voltage, the problem of generating occur.Reactor of the present utility model can meet the requirement of 220kV, 500kV electrical network to voltage, CURRENT DISTRIBUTION, insulation level and short time current.

In the present embodiment, described insulation column 30 comprises post insulator 31 and special-shaped transition bearing 71, and special-shaped transition bearing 71 is connected with insulated bolt by epoxy dull and stereotyped 73 with post insulator 31.Meet the requirement of insulation against ground level and support, reduce leakage field and meet the requirement of auxiliary temperature.

In the present embodiment, the top of described post insulator 31, with metal flange, is provided with a circle insulator corona ring outside this metal flange, and effectively even post insulator 31 top metal flange electric field strength, prevents the electric discharge phenomena under high-pressure situations.

Post insulator 31 top metal flange all installs a circle insulator corona ring, the rainhat corona ring 21 that reactor top rainhat uses, overlap joint mouth corona ring 22, reactor winding 10 is the top reactor body corona rings 41 used, bottom reactor body corona ring 42, by the use of electric field shielding part, the partial discharge risk brought under effectively prevent high voltage.(as shown in Figure 6)

In addition, the coil 10 of reactor main body 1 by two traverse shafts to coiling arranged side by side, two wires adopt classification rise around mode coiling.The classification differential seat angle risen around the initiating terminal position referring to two wires is 180 °, its number of turns that coiling is same from the two ends of any diameter of the coil 10 of reactor main body 1 respectively.Such winding method and co-located rise compared with the mode, and turn-to-turn voltage drop can be made to be at half, thus improve turn-to-turn insulation reliability.

Next consult shown in Fig. 2, Fig. 3, according to the structural representation of the embodiment illustrated in fig. 1 middle rainhat of high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor.

In the present embodiment, described rainhat 20 is connected and fixed by multiple support bar and reactor inside top wall 12.

In the present embodiment, described rainhat 20 links together with combination arm 11.

In the present embodiment, the edge of described rainhat 20 is provided with multiple rainhat corona ring 21 and multiple equipotential line 23; The body outer surface of rainhat 20 is provided with multiple overlap joint mouth corona ring 22 and multiple bolt shielding cap 24, and shielding cap is set on fastening bolt, prevents the corner discharge of fastening bolt.

By arranging rainhat 20 at the top of reactor, not only solve reactor winding 10 and occur local surfaces electric discharge and creepage trace phenomenon because surface rain water dirt is wet, also add the anti-bird grid 60 of sidepiece anti-bird grid 50 and top prevents birds from entering reactor winding 10 inside, is convenient to thermal current and sheds from reactor winding 10 inside.Add the partial discharge risk brought under bolt shielding cap 24, rainhat corona ring 21 and overlap joint mouth corona ring 22 solve high voltage.

As shown in Fig. 3-1 ~ 3-4, the rainhat embodiment illustrated in fig. 1 according to high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor installs the structural representation of the anti-bird grid of sidepiece additional.

In the present embodiment, the lower end of described rainhat 20 is provided with the anti-bird grid 50 of sidepiece.

In the present embodiment, the anti-bird grid 50 of described sidepiece comprise bird-proof cover 51 and bird prevention net 52.

In the present embodiment, described bird-proof cover 51 is the circular ring of bottom inwardly in 90 degree of bendings, and circular ring is that a completely circular structure or multiple arc section 514 are spliced into a completely circular structure; 90 degree of bending parts of bird-proof cover 51 and bird prevention net 52 overlap.

In the present embodiment, the lap-joint of described bird-proof cover 51 and bird prevention net 52 is connected and fixed by epoxy plate pressure ring 53.

Bird-proof cover and bird prevention net connecting portion 512 are provided with epoxy plate pressure ring 53, thus bird-proof cover 51 and bird prevention net 52 are linked together.

In the present embodiment, described epoxy plate pressure ring 53 is circular ring, and the arc plate identical by two or more structure forms.

Certain gap is left between the coil 10 of reactor main body 1 and blimp.In order to prevent the animals such as birds from entering into the inside of reactor by this gap, between coil 10 and blimp, installing anti-bird grid additional, ensure that the charged stable operation of reactor; By cell structure, reactor hot gas is discharged, ensure its cooling requirements.

In the present embodiment, described bird-proof cover 51 be bottom inwardly in the circular ring of 90 degree of bendings, this circular ring has a line-outgoing arm notch 515, for the stretching out of line-outgoing arm of the upper boom portion of dry reactor.

In the present embodiment, the circular ring of described bird-proof cover 51 is that a completely circular structure or multiple arc section 514 are spliced into a completely circular structure, thus ensures that these bird grid are applicable to the reactor of different model.

In the present embodiment, described circular ring is with vertical face 511, and vertical face 511 is divided into multiple grid.

In the present embodiment, described adjacent two arc sections 514 are connected by screw together.

In the present embodiment, described bird prevention net 52 is installed in the grid of circular ring.

In the present embodiment, bird-proof cover 51 is resisted against in lateral connection portion 513.

As shown in Fig. 3-5,3-6, according to the structural representation of the anti-bird grid in bottom in Fig. 3-5 illustrated embodiment of high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor.

In the present embodiment, the bottom of described reactor main body 1 is provided with the anti-bird grid 60 in bottom.

In the present embodiment, the anti-bird grid 60 in described bottom are positioned at the bottom of reactor middle hollow cylinder, and under being overlapped on reactor on arm 61; Bird prevention net 60 is that a completely circular structure or multiple part are spliced into a completely circular structure.

In the present embodiment, the entirety of the anti-bird grid 60 in described bottom is circular, and inside is latticed; The anti-bird grid 60 in bottom adopt the organdy colligation of soaking room-temperature curing epoxy with the overlapping part of arm 61 under reactor, thus are tightened together with arm under reactor 61 by anti-for bottom bird grid 60.

In the present embodiment, the top of described dry reactor is provided with blimp and air channel 62.Arrange the inner noise sent of blimp minimizing reactor outwards to transmit; Air channel 62 is set and is conducive to the heat of reactor inside to outdiffusion, extend the useful life of reactor.

The anti-bird grid 60 in bottom are positioned at the bottom of reactor middle hollow cylinder, and under being overlapped on reactor on arm, birds vacancy from dry reactor effectively can being stoped to enter reactor inside, meet the cooling requirements of reactor simultaneously; The anti-bird grid 60 in bottom are that a completely circular structure or multiple part are spliced into a completely circular structure, are applicable to the air core reactor of different model.

As shown in Figure 4, according to the structural representation of the embodiment illustrated in fig. 1 middle insulation column of high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor.

In the present embodiment, syndeton 70 is provided with between described reactor main body 1 and insulation column 30.

Epoxy flat board 73 is provided with between stainless steel support plate 72 and special-shaped transition bearing 71, the special-shaped transition bearing 71 that epoxy flat board 73 makes the stainless steel support plate 72 of reactor and AC reactor support separates, loop on the special-shaped transition bearing 71 that the stainless steel support plate 72 of reactor and AC reactor support is separated by epoxy flat board 73, thus avoid between stainless steel support plate 72 and transition seat 76, special-shaped transition bearing 71, forming closed metallic(return) circuit and produce eddy current, and then cause fever phenomenon.

Adopt reactor of the present utility model not formed in whole Fig. 4 and adopt two stainless steel bolts 74 by the current delivery in stainless steel support plate 72 bottom reactor to the left side, be delivered to the special-shaped transition bearing 71 that AC reactor supports again, be delivered to two stainless steel bolts 75 on right side again, then pass the current loop of stainless steel support plate 72 bottom reactor back.Effectively reduce the special-shaped transition bearing 71 of stainless steel support plate 72 and AC reactor support bottom reactor due to the heat condition of circulation in stray field.

In the present embodiment, described stainless steel support plate 72 adopts stainless steel 304 material to make; Special-shaped transition bearing 71 adopts stainless steel 304 material to make equally; Multiple flanges on post insulator 31 also just stainless steel 304 material make.

The low permeability of stainless steel can make the eddy current loss of generation on insulation column 30 less, thus ensures that caloric value is also less.

As shown in Figure 5, according to the stereogram of the embodiment illustrated in fig. 4 middle syndeton of high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor.

The utility model discloses a kind of syndeton 70 for special-shaped transition bearing and bearing in reactor, it comprises stainless steel support plate 72, described stainless steel support plate 72 has two groups of through holes, in the through hole of one group, left side, be provided with the stainless steel bolt 721 that cover has isolating shrinkable tube; Stainless steel bolt 722 is provided with in the one group of through hole in right side.

After in prior art, stainless steel support plate 72 is connected by stainless steel support with special-shaped transition bearing 71, closed metallic(return) circuit can be formed, under the effect of alternating magnetic field, the magnetic flux of closed hoop changes, produce induced electromotive force, and then generation eddy current, eddy current loss changes into heat energy, causes stainless steel support plate 72 and special-shaped transition bearing 71 temperature to raise.Syndeton for transition seat in reactor and bearing of the present utility model is by using metal bolts to realize while stainless steel support plate 72 is fastenedly connected with special-shaped transition bearing 71, re-use isolation material and block the metallic closed ring wherein formed, thus suppression Large Copacity current limiting reactor stray field produces the heating problem that eddy current loss causes on metal auxiliary.

As shown in fig. 5-1, according to the broken away view of the embodiment illustrated in fig. 5 middle right side stainless steel bolt of the syndeton for special-shaped transition bearing and bearing in reactor of the present utility model.

In the present embodiment, epoxy plain cushion 7214 is provided with between described stainless steel support plate 72 and special-shaped transition bearing 71.Epoxy plain cushion 7214 has blocked the conducting of stainless steel support plate 72 below and above special-shaped transition bearing 71; Epoxy plain cushion 7214 is for the contact of blocking bolt cap and special-shaped transition bearing 71.

In the present embodiment, described stainless steel support plate 72 is the interface part in reactor body, is arranged on the below of reactor body.

In the present embodiment, described stainless steel support plate 72 is a rectangular slab, and its corner all has through hole.

In the present embodiment, described left side stainless steel bolt 721 is provided with stainless steel nut 7211, stainless steel plain cushion 7212, stainless steel bomb pad 7213 and epoxy plain cushion 7214 from top to bottom successively.

In the present embodiment, described epoxy plain cushion 7214 selects epoxy resin material, is arranged on the nuts lower end of left side stainless steel bolt 721, is used for insulating isolating nuts and surrounding metal parts.

Next consult shown in Fig. 5-2, according to the structural representation of the embodiment illustrated in fig. 5 middle stainless steel support plate of the syndeton for special-shaped transition bearing and bearing in reactor of the present utility model.

In the present embodiment, on described special-shaped transition bearing 71 with U-shaped opening 723.

In the present embodiment, the U-shaped opening 723 on described special-shaped transition bearing 71 is facing to reactor center.

In the present embodiment, described isolating shrinkable tube is set in the root of the threaded rod of left side stainless steel bolt 721, this bolt and surrounding metallic components is insulated and isolates.

Stainless steel support plate 72 has two groups of through holes, one group, right side through hole is connected with the bottom of reactor body by stainless steel bolt 722, the one group of through hole cover in left side has the stainless steel bolt 721 of heat-shrink tube to be connected with the bottom of reactor body, closely be wrapped on bolt after isolating shrinkable tube heating, the special-shaped transition bearing 71 making cover have the metallic member of the stainless steel bolt 721 of heat-shrink tube not support with AC reactor contacts, electric current on stainless steel support plate 72 is not delivered to by two stainless steel bolts 721 in left side the special-shaped transition bearing 71 that AC reactor supports, electric current on stainless steel support plate 72 can only be delivered to the special-shaped transition bearing 71 of AC reactor support by two of a right side stainless steel bolt 722, epoxy flat board 73 is provided with between stainless steel support plate 72 and special-shaped transition bearing 71, the special-shaped transition bearing 71 that epoxy flat board 73 makes the stainless steel support plate 72 of reactor and AC reactor support separates, electric current on the stainless steel support plate 72 of reactor is not delivered to the special-shaped transition bearing 71 of AC reactor support by epoxy flat board 73, thus avoid between stainless steel support plate 72 and special-shaped transition bearing 71, forming closed metallic(return) circuit, under the effect of alternating magnetic field, the magnetic flux of closed hoop changes, produce induced electromotive force, and then generation eddy current, eddy current loss changes into heat energy, stainless steel support plate plate and special-shaped transition pedestal temperature is caused to raise.

As shown in Fig. 5-3, according to the structural representation of the embodiment illustrated in fig. 5 middle epoxy flat board of the syndeton for special-shaped transition bearing and bearing in reactor of the present utility model.

In the present embodiment, epoxide resin material selected by described epoxy flat board 73.

In the present embodiment, described epoxy dull and stereotyped 73 is rectangular thin plate, and thickness is 1-2 millimeter.

In the present embodiment, described epoxy flat board 73 has four through holes, four through holes are distributed on four angles of rectangular thin plate.

In the present embodiment, four through holes of described epoxy flat board 73 are corresponding with the through hole of four on stainless steel support plate 72.

In the present embodiment, the lower end of described epoxy flat board 73 is provided with special-shaped transition bearing 71.

Four connecting through hole vertical direction alignment on epoxy flat board 73, two holes wherein on the left of reactor radial direction level are respectively charged into a harness fastener, stainless steel bolt be inserted in a stainless steel plain cushion 212 from bottom to top penetrate special-shaped transition bearing 71, through epoxy flat board 73, pass from stainless bridle iron plate 72, tighten after screw rod is inserted in the stainless steel bomb pad of a stainless steel plain cushion 7212,7213, stainless steel nut 7211.Two holes on the right side of reactor radial direction level are respectively charged into a harness fastener, the stainless steel bolt of root chuck isolating shrinkable tube be inserted in an epoxy plain cushion 7214 from bottom to top penetrate special-shaped transition bearing 71, through epoxy flat board 73, pass from stainless bridle iron plate 72, tighten after screw rod is inserted in the stainless steel bomb pad of a stainless steel plain cushion 7212,7213, stainless steel nut 7211.

Finally consult shown in Fig. 5-4, according to the structural representation of the embodiment illustrated in fig. 5 middle special-shaped transition bearing of the syndeton for special-shaped transition bearing and bearing in reactor of the present utility model.

In the present embodiment, the top of special-shaped transition bearing 71 has four through holes, for being connected and fixed special-shaped transition bearing 71.

Of the present utility model is that novel non-closed becket magnetic-leakage preventing generates heat special-shaped transition support connecting structure for the syndeton of special-shaped transition bearing and bearing in reactor, two holes wherein on the left of reactor radial direction level are respectively charged into a set of stainless steel support, stainless steel support plate 72 is connected conducting with special-shaped transition bearing 71, two holes on the right side of reactor radial direction level are respectively charged into a harness fastener, and wherein epoxy flat board 73 has blocked the conducting of stainless steel support plate 72 below and above special-shaped transition bearing 71.The stainless steel bolt 721 of root chuck isolating shrinkable tube can prevent because Metal Contact in installing hole connects conducting stainless steel support plate 72 and special-shaped transition bearing 71, and epoxy plain cushion 7214 is contacts of blocking bolt cap and special-shaped transition bearing 71.By the synergy of isolating shrinkable tube, epoxy flat board 73, epoxy plain cushion 7214, can not conducting between stainless steel support plate 72 and special-shaped transition bearing 71 on the right side of reactor radial direction level, and then closed becket can not be formed between stainless steel support plate 72 and the U-shaped opening 723 of special-shaped transition bearing 71, hinder the generation of eddy current, effectively control the heating problem solving auxiliary.

As shown in Figure 7, according to the structural representation of the embodiment illustrated in fig. 1 middle combination arm of high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor.

In the present embodiment, described multiple combination arm 11 is circumferentially uniformly distributed, and multiple combination arm and center hub 15 are welded to form reactor suspension bracket.

In the present embodiment, described combination arm 11 comprises aluminium alloy plate 12 and corrosion resistant plate 13.

In the present embodiment, described aluminium alloy plate 12 and corrosion resistant plate 13 are linked together by rivet 14.

Aluminium alloy plate 12 and corrosion resistant plate 13 are linked together by multiple rivet 14, and employing stainless steel and its reason of aluminum alloy materials are: stainless intensity is higher than aluminum alloy materials, and resistivity will much larger than aluminum alloy materials; Can be conducted electricity by aluminium alloy plate 12; Corrosion resistant plate 13 increases structural strength, reduces the volume of aluminium alloy arm, reduces the loss of arm, prevent hardware from generating heat.

As shown in Fig. 7-1, combination arm 11 of the present utility model, by corrosion resistant plate 13 and aluminium alloy plate 12 being combined by rivet 14 punching press, plays the object strengthening reactor arm mechanical strength.Combination arm is by a large amount of mechanical tests, and result of the test is as follows:

When tension is 250kN, this combination arm is not destroyed, and combination arm rivet does not find change;

When bending resistance is 60kN, this combination arm is not out of shape, and combination arm rivet does not find change;

When resistance to compression is 350kN, this combination arm is not out of shape, and combination arm rivet does not change.

The beneficial effects of the utility model are: have better mechanical performance than traditional aluminium alloy arm and reduce the loss of reactor arm.

In the present embodiment, described aluminium alloy plate 12 and corrosion resistant plate 13 all have the circular hole that 20 ~ 30 diameters are 12 millimeters.

In the present embodiment, the circular hole on described aluminium alloy plate 12 and the circular hole one_to_one corresponding on corrosion resistant plate 13.

In the present embodiment, described aluminium alloy plate 12 is linked together by multiple rivet 14 with corrosion resistant plate 13; Together with aluminium alloy plate 12 fits tightly with corrosion resistant plate 13.

When aluminium alloy plate 12 and corrosion resistant plate 13 are assembled, first on corrosion resistant plate 13, offer the circular hole hole with correspondence position on aluminium alloy plate 12 and quantity, then stamping technology is adopted, stainless steel rivet 14 is penetrated to be depressed into from aluminium alloy plate 12 side and flushes with corrosion resistant plate 13, thus aluminium alloy plate 12 and corrosion resistant plate 13 are linked together securely.

In the utility model, aluminium alloy plate 12 can be referred to as aluminium alloy arm; Corrosion resistant plate 13 is referred to as stainless steel arm.

In the present embodiment, the width of described aluminium alloy plate 12 is 249 millimeters, and thickness is 10 millimeters, and length is the external diameter value of dry reactor.

In the present embodiment, the width of described corrosion resistant plate 13 is 254 millimeters, and thickness is 10 millimeters, and length is the external diameter value of dry reactor.

Certainly can increase or reduce the size of aluminium alloy plate 12 and corrosion resistant plate 13 as required.

As shown in Fig. 7-2, in the present embodiment, described reactor suspension bracket is star structure, makes overall suspension bracket more stable.

In the present embodiment, fixed by lacing wire 16 and the horizontal binding strap 17 of multiple tracks between described two combination arms, prevent arm to be out of shape.

In the present embodiment, described center hub 15 aluminium alloy material.

In the present embodiment, epoxy resin and aluminum alloy materials are selected in described lacing wire 16.

In the present embodiment, described horizontal binding strap 17 selects epoxide resin material.

As shown in Fig. 7-3, when aluminium alloy plate 1 and corrosion resistant plate 2 are assembled, first on corrosion resistant plate 2, offer the circular hole hole with correspondence position on aluminium alloy plate 1 and quantity, then stamping technology is adopted, stainless steel rivet 3 is penetrated to be depressed into from aluminium alloy plate 1 side and flushes with corrosion resistant plate 2, thus aluminium alloy plate 1 and corrosion resistant plate 2 are linked together securely.

Finally consult shown in Fig. 8, according to the air duct slats structural representation on the embodiment illustrated in fig. 1 middle reactor winding of high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor.

In the present embodiment, described coil 10 has multiple encapsulated layer, is provided with air duct slats 80 between each encapsulated layer.

In the present embodiment, described air duct slats 80 is in T font; Air duct slats 80 has the first support arm 81 and the second support arm 82 of support coils 10.

In the present embodiment, described first support arm 81 is vertical with the second support arm 82; First support arm 81 contacts with coil 10.

In the present embodiment, described first support arm 81 is provided with rounding arc 83 structure with the contact site of coil 10.

The coil 11 of reactor main body 10 has multiple encapsulated layer, along with volume and encapsulating the increasing of the number of plies, internal stress between each encapsulated layer is very large, if the air duct slats 80 between each encapsulated layer adopts rectangular ventilation bar easily to cause " bar " phenomenon, namely, in the process of coiling, air duct slats easily collapses due to stress and does not play the effect supporting next encapsulated layer.

In sum, high pressure of the present utility model, ultrahigh pressure dry hollow current-limiting reactor have the following advantages: reactor main body 1 is supported by insulation column 30; The top of reactor main body 1 and bottom are equipped with electric field shielding part 40, and electric field shielding part 40 comprises top reactor main body corona ring 41 and bottom reactor main body corona ring 42, to solve reactor main body and auxiliary under high voltage, the problem of generating occur; Insulation column 30 comprises post insulator 31 and metallic support 33, and metallic support 33 and post insulator 31 are connected with insulated bolt by epoxy dull and stereotyped 7373, meets the requirement of insulation against ground level and support, reduces leakage field and meets the requirement of auxiliary temperature; Coil 10 is provided with combination arm 11, combination arm 11 comprises aluminium alloy plate 12 and corrosion resistant plate 13, aluminium alloy plate 12 and corrosion resistant plate 13 are linked together by multiple rivet 14, and stainless intensity is higher than aluminum alloy materials, and resistivity will much larger than aluminum alloy materials; Can be conducted electricity by aluminium alloy plate 12; Corrosion resistant plate 13 increases structural strength, reduces the volume of aluminium alloy arm, reduces the loss of arm, prevent hardware from generating heat.

Reactor of the present utility model can meet the requirement of 220kV, 500kV electrical network to voltage, CURRENT DISTRIBUTION, insulation level and short time current.

It will be apparent to those skilled in the art that high pressure of the present utility model, combination in any that ultrahigh pressure dry hollow current-limiting reactor comprises each several part in this specification.As space is limited and in order to make the simple and clear of specification, these combinations are not introduced one by one in detail at this, but after having seen this specification, the scope of the present utility model that the combination in any of each several part be made up of this specification is formed is self-evident, does not therefore add and repeats.

Claims (29)

1. high pressure, a ultrahigh pressure dry hollow current-limiting reactor, comprises reactor main body (1) and comprises coil (10), rainhat (20) and multiple combination arm (11), it is characterized in that: reactor main body (1) is supported by multiple insulation column (30); The top of reactor main body (1) and bottom are equipped with electric field shielding part (40), and electric field shielding part (40) comprises top reactor main body corona ring (41) and bottom reactor main body corona ring (42).

2. high pressure, ultrahigh pressure dry hollow current-limiting reactor as claimed in claim 1, it is characterized in that: insulation column (30) comprises post insulator (31) and special-shaped transition bearing (71), and special-shaped transition bearing (71) is connected with insulated bolt by epoxy flat board (73) with post insulator (31).

3. high pressure, ultrahigh pressure dry hollow current-limiting reactor as claimed in claim 2, is characterized in that: the top of post insulator (31), with metal flange, is provided with a circle insulator corona ring outside this metal flange.

4. high pressure, ultrahigh pressure dry hollow current-limiting reactor as claimed in claim 1, is characterized in that: rainhat (20) is connected and fixed by multiple support bar and reactor inside top wall (12).

5. high pressure, ultrahigh pressure dry hollow current-limiting reactor as claimed in claim 1, is characterized in that: rainhat (20) links together with combination arm (11).

6. high pressure, ultrahigh pressure dry hollow current-limiting reactor as claimed in claim 1, it is characterized in that: multiple combination arm (11) is circumferentially uniformly distributed, multiple combination arm and center hub (15) are welded to form reactor suspension bracket.

7. high pressure, ultrahigh pressure dry hollow current-limiting reactor as claimed in claim 6, is characterized in that: combination arm (11) comprises aluminium alloy plate (12) and corrosion resistant plate (13).

8. high pressure, ultrahigh pressure dry hollow current-limiting reactor as claimed in claim 7, is characterized in that: aluminium alloy plate (12) and corrosion resistant plate (13) are linked together by rivet (14).

9. high pressure, ultrahigh pressure dry hollow current-limiting reactor as claimed in claim 1, is characterized in that: be fixed together by lacing wire (16) and the horizontal binding strap of multiple tracks (17) between every two combination arms.

10. high pressure, ultrahigh pressure dry hollow current-limiting reactor as described in claim 1 or 4 or 5, is characterized in that: the lower end of rainhat (20) is provided with the anti-bird grid (50) of sidepiece.

11. high pressure, ultrahigh pressure dry hollow current-limiting reactors as described in claim 1 or 4 or 5, is characterized in that: the edge of rainhat (20) is provided with multiple rainhat corona rings (21) and multiple equipotential line (23); The body outer surface of rainhat (20) is provided with multiple overlap joint mouth corona ring (22) and multiple bolt shielding cap (24).

12. high pressure as claimed in claim 10, ultrahigh pressure dry hollow current-limiting reactor, is characterized in that: the anti-bird grid (50) of sidepiece comprise bird-proof cover (51) and bird prevention net (52).

13. high pressure as claimed in claim 12, ultrahigh pressure dry hollow current-limiting reactor, it is characterized in that: bird-proof cover (51) is the circular ring of bottom inwardly in 90 degree of bendings, and circular ring is that a completely circular structure or multiple arc section (514) are spliced into a completely circular structure; 90 degree of bending parts and the bird prevention net (52) of bird-proof cover (51) overlap.

14., as claimed in claim 12 for the anti-bird grid in bottom of dry reactor, is characterized in that: the lap-joint of bird-proof cover (51) and bird prevention net (52) is connected and fixed by epoxy plate pressure ring (53).

15., as claimed in claim 14 for the anti-bird grid in bottom of dry reactor, is characterized in that: epoxy plate pressure ring (53) is circular ring, and the arc plate identical by two or more structure forms.

16. high pressure as claimed in claim 1, ultrahigh pressure dry hollow current-limiting reactor, is characterized in that: the bottom of reactor main body (1) is provided with the anti-bird grid (60) in bottom.

17. high pressure as claimed in claim 16, ultrahigh pressure dry hollow current-limiting reactor, is characterized in that: the anti-bird grid (60) in bottom are positioned at the bottom of reactor middle hollow cylinder, and under being overlapped on reactor on arm (61); Bird prevention net (60) is that a completely circular structure or multiple part are spliced into a completely circular structure.

18. high pressure as claimed in claim 17, ultrahigh pressure dry hollow current-limiting reactor, is characterized in that: the entirety of the anti-bird grid (60) in bottom is for circular, and inside is latticed; The anti-bird grid (60) in bottom adopt the organdy colligation of soaking room-temperature curing epoxy with the overlapping part of arm (61) under reactor.

19. high pressure as claimed in claim 1, ultrahigh pressure dry hollow current-limiting reactor, is characterized in that: be provided with syndeton (70) between reactor main body (1) and insulation column (30).

20. high pressure as claimed in claim 19, ultrahigh pressure dry hollow current-limiting reactor, it is characterized in that: syndeton (70) comprises stainless steel support plate (72) and transition seat (76), transition seat (76) is two L-type plates, one side plate of L-type plate has U-shaped mouth, and this U-shaped mouth is facing to reactor center.

21. high pressure as claimed in claim 20, ultrahigh pressure dry hollow current-limiting reactor, is characterized in that: stainless steel support plate (72) has two groups of through holes, is provided with the stainless steel bolt (721) that cover has heat-shrink tube (745) in the through hole of one group, left side; Stainless steel bolt (722) is provided with in the one group of through hole in right side.

22. high pressure as claimed in claim 21, ultrahigh pressure dry hollow current-limiting reactor, is characterized in that: be closely wrapped on stainless steel bolt (721) after heat-shrink tube (745) heating.

23. high pressure, ultrahigh pressure dry hollow current-limiting reactors as described in claim 20 or 21, is characterized in that: be provided with epoxy pad between the special-shaped transition bearing (71) of stainless steel support plate (72) and insulation column (30).

24. high pressure as claimed in claim 21, ultrahigh pressure dry hollow current-limiting reactor, is characterized in that: left side stainless steel bolt (721) is provided with stainless steel nut (7211), stainless steel plain cushion (7212), stainless steel bomb pad (7213) and epoxy plain cushion (7214) from top to bottom successively.

25. high pressure as claimed in claim 21, ultrahigh pressure dry hollow current-limiting reactor, is characterized in that: left side stainless steel bolt (721) is through epoxy flat board (73).

26. high pressure as claimed in claim 1, ultrahigh pressure dry hollow current-limiting reactor, is characterized in that: coil (10) has multiple encapsulated layer, be provided with air duct slats (80) between each encapsulated layer.

27. high pressure as claimed in claim 26, ultrahigh pressure dry hollow current-limiting reactor, is characterized in that: air duct slats (80) is in T font; Air duct slats (80) has the first support arm (81) and second support arm (82) of support coils (10).

28. high pressure as claimed in claim 27, ultrahigh pressure dry hollow current-limiting reactor, is characterized in that: the first support arm (81) is vertical with the second support arm (82); First support arm (81) contacts with coil (10).

29. high pressure as claimed in claim 28, ultrahigh pressure dry hollow current-limiting reactor, is characterized in that: the first support arm (81) is provided with rounding arc (83) structure with the contact site of coil (10).