CN201181641Y

CN201181641Y - Iron-core reactor

Info

Publication number: CN201181641Y
Application number: CNU2007201389455U
Authority: CN
Inventors: （请求不公开姓名）
Original assignee: Tebian Electric Apparatus Stock Co Ltd
Current assignee: Tebian Electric Apparatus Stock Co Ltd
Priority date: 2007-08-20
Filing date: 2007-08-20
Publication date: 2009-01-14
Anticipated expiration: 2017-08-20

Abstract

The utility model discloses an iron-core reactor which includes the body of the iron-core reactor which includes two independent bodies; the two bodies form a double-body structure; the loops inside the two bodies are connected together. The iron-core reactor can meet the requirements of the reactor with high voltage and large capacity; besides, the assembly is easy, the magnetic leakage loss is low and the operation is reliable.

Description

A kind of iron-core reactor

Technical field

The utility model belongs to the reactor technical field, relates to a kind of iron-core reactor.

Background technology

Existing single-phase iron-core reactor all is by single day shaped iron core, the single coil suit, this structure is suitable for certain voltage, product below the constant volume, but after electric pressure, capacity acquire a certain degree (being that 800KV, capacity are the product of 100000kvar as electric pressure), maximization along with product, width, the height dimension of product further increase, and have brought difficulty for the transportation of reactor.In addition, because the insulating part creepage distance of product itself is conditional, be not under certain insulation distance, can allow the unconfined increase of voltage.When the electric pressure of product further raise, the creepage voltage that insulating part bore increased, and can bring potential safety hazard to product.

In addition, in the existing reactor, the outlet of coil is to support by being fixed on the insulation lath that clamps on the yoke up and down unshakable in one's determination (frame of day shaped iron core), when electric pressure acquires a certain degree, its creepage distance is restricted, insulation lath creepage voltage over the ground is big, causes the unreliable of reactor operation easily.

In addition, the fuel tank tank wall that is used to place varactor device body in the prior art is an individual layer, the system voltage that this structure is suitable for and prevent that the noise of reactor body and vibration from having limitation, when the voltage that acts on the iron-core reactor, when capacity acquires a certain degree, because the restriction of transportation and insulating material, single iron core and coil can not satisfy high voltage, the transportation of products with larger capacity and insulating requirements, electromagnetic force and the also difficult control of its vibration that causes with respect to the cake unshakable in one's determination of the single iron core of products with larger capacity, vibration that produces unshakable in one's determination simultaneously and noise are delivered to the fuel tank outside by solid and insulating oil, can not satisfy the environment environmental requirement of power system operation.

The utility model content

Technical problem to be solved in the utility model is at above shortcomings in the prior art, provides that a kind of assembling is simple relatively, convenient transportation, the little and reliable iron-core reactor of dispersion loss.

The technical scheme that solution the utility model technical problem is adopted is that this iron-core reactor comprises reactor device body, and wherein, described reactor device body comprises two independent device bodies, and two device bodies are formed two machine body structures, and the coil of two device body inside is linked together.

The coil of two device body inside is linked together and can passes through coupled in series, also can be by parallel connection.Promptly the connected mode of two coils can also can be parallel connection for series connection.

The coil of two device body inside by be coupled together in series can be in the first device body coil promptly an end of first coil be the end of incoming cables, coil in the other end of first coil and the second a device body i.e. end of second coil is connected, the other end of second coil is a leading-out terminal, forms coupled in series; Series connection also can be that first coil and second coil adopt the middle part inlet wire to be connected in series, promptly first coil adopts at the middle part of coil inlet wire, its both ends outlet and back in parallel are as the inlet wire of second coil, second coil adopts at the middle part of coil inlet wire, outlet after its both ends parallel connection is connected with the middle part inlet wire of second coil after the first coil both ends parallel connection.

When two coil series connection in the utility model two device bodies, satisfying under the prerequisite of shipping height, the coil arrangement hop count of two coils increases than total hop count of single-column coil, total coil height increases, coil under operating voltage is increased greatly along the creepage distance of face, two coils bear operating voltage jointly, have guaranteed the reliability of the reactor product insulation under the operating voltage.

The coil of two device bodies by parallel connection can be together: the end winding parallel connection, and promptly an end of two coils of two device bodies is connected in parallel as the end of incoming cables and does the end of incoming cables, and the other end of two coils is connected in parallel as leading-out terminal and makes leading-out terminal; Parallel connection also can be together: the coil in the first device body is that the coil in first coil and the second device body is that second coil all adopts the middle part inlet wire, and the end of incoming cables, middle part is connected in parallel, two coils in parallel again as leading-out terminal after two ends are connected in parallel up and down, promptly first coil adopts at the middle part of coil inlet wire, its upper and lower end parts outlet and parallel connection, second coil adopts at the middle part of coil inlet wire, its upper and lower end parts outlet and parallel connection, first coil is in parallel with the end of incoming cables, middle part of second coil, two coils, and the both ends parallel connection of the first coil both ends and second coil is as leading-out terminal.

Satisfying the mode that can adopt parallel connection under transportation and the electric property situation, when adopting the mode of middle part inlet wire, less demanding to the insulation level of coil end.

Certainly, the connected mode of the utility model coil never is limited to above-mentioned four kinds of connected modes.

Preferably, the arrangement mode of two device bodies can adopt this arrangement mode that the electrode diameter of remotely current potential, and lead-out wire of lead-out wire (lines between two coils) can be dwindled for being arranged in parallel; Or be in-line and arrange, when adopting this arrangement mode in the reactor two device bodies leakage field between two coils interfere with each other little.

Certainly, the utility model reactor two device bodies also can adopt other arrangement mode.

Two independent device bodies respectively comprise day shaped iron core, and day shaped iron core middle part is a plurality of cake unshakable in one's determination of centre bore and core limbs that a plurality of air gap overlaps and forms of having.

Described reactor two device bodies all place in the same reactor oil tank, because the voltage difference that is acted under the operating voltage, insulation distance can be different, therefore the size of two device bodies can be small one and large one, at two devices during as cascaded structure, as the case may be, the voltage capacity of first device body can be 30-70%, and then the voltage capacity of second device body is 70-30%.Certainly, the size of two device bodies also can be for identical.

Preferably, in the utility model, the outgoing line device of coil can directly be connected on one's body the reactor device.Described outgoing line device can comprise that the U-shaped metal all presses shielding, is overlying on the U-shaped metal and all presses the outer insulating barrier of shielding, be overlying on metal and all press the outer outsourcing insulation of shield dielectric layer, and all pressing at outsourcing insulation and metal has oil clearance between the shield dielectric layer.

Further preferably, described reactor oil tank adopts the structure of local double layer oil tank wall, and a plurality of laths are arranged on the medial surface of tank wall, is fixed with second tank wall on the lath.

Described lath comprises transverse slats and vertical lamellae, forms a plurality of grids, and second tank wall constitutes by covering on each grid with corresponding block of plate of each sizing grid.

Described lath adopts metal to make, the size of each transverse slats can for: length * wide=650mm * 50mm, thickness are 4-50mm.The length of vertical lamellae is relevant with the height of reactor oil tank, generally determines according to actual conditions, and its width is 50mm.

In addition, also can be connected with radiator on the fuel tank of reactor.

Described radiator is symmetrically distributed in a side or two sides of reactor oil tank or distributes around reactor oil tank.

The utility model is owing to adopted two machine body structures, the clamping that compresses with the iron yoke of the stem of independent iron core is guaranteed easily, and then noise and vibration be under control, adopting the reactor loss of single device body to concentrate than same capability product simultaneously is improved, improved the Temperature Distribution of entire product, (local overheating is relevant with the size of leakage field to have avoided hot issue that the part in the device body exists, the leakage field size of the product of different capabilities is different, capacity is big more, leakage field is many more, when adopting two device bodies, be equivalent to each device body capacity and will reduce half, relative leakage field just reduces half).

Outgoing line device of the present utility model directly is fixed on one's body the device, solved in limited transportation and allowed under the height, the nargin of the creepage distance of megohmite insulant is little, has avoided the creepage over the ground problem owing to the supports insulative of structure employing in the past lath, has guaranteed the operational reliability of high voltage product.

Local double layer Oiltank structure of the present utility model, limited when in reactor, being connected with alternating current, the fuel tank and the fuel tank outside are passed in flexible noise that causes of the electromagnetic force of cake unshakable in one's determination and the magnetic hysteresis of iron yoke and vibration, adopt the cross-coupled laths of metal of double-deck Oiltank structure of the present utility model that whole ground floor oil tank wall has been carried out Region Segmentation, reduced the vibration amplitude of tank wall steel surface, the noise that double-deck Oiltank structure of while produces iron core has played the effect of sound insulation, and the effect of environmental protection has been played in operation at the scene to product.

Because the utility model reactor reduces the single-column capacity, this pair of machine body structure is all favourable to the heat radiation of the control of leakage field, winding, therefore applicable to any a reactor that different electric pressures, capacity requirement are arranged, for the product of 1000kV, 100000kvar, its insulating reliability and transportation aspect can both meet the demands.

Description of drawings

Fig. 1 is the structural front view of the utility model iron-core reactor two device bodies

Fig. 2 is the end view of Fig. 1

Fig. 3 is the front view (when two device bodies are arranged in parallel) of two machine body structures in the utility model iron-core reactor

Fig. 4 is the vertical view of Fig. 3

Fig. 5 is the front view (when two device bodies are the in-line arrangement) of two machine body structures in the utility model iron-core reactor

Fig. 6 is the vertical view of Fig. 5

Fig. 7 is the zoomed-in view of Fig. 4

Fig. 8 is the vertical view (having four groups of radiators) of the utility model iron-core reactor

Fig. 9 is the connection layout of the utility model two coils middle part inlet wire series connection

Figure 10 is the connection layout of the utility model two end winding inlet wires series connection

Figure 11 is the connection layout of the utility model two coils middle part inlet wire parallel connection

Figure 12 is the connection layout of the utility model two end winding inlet wire parallel connections

Figure 13 A is the mounting structure front view of the utility model outgoing line device

Figure 13 B is the vertical view of Figure 13 A

Figure 14 is loaded on structural representation on the arc for the utility model outgoing line device

Figure 15 is the structural representation of the utility model outgoing line device

Figure 16 is the structure vertical view of the utility model fuel tank

Figure 17 is the plane structure chart of oil tank wall among Figure 16

Figure 18 is that the A-A at P place among Figure 17 is to view

Among the figure: the 1-bushing 2-neutral point bushing 3-reactor main body 4-oil conservator 5-radiator 6-fuel tank 7-8-coil unshakable in one's determination 9-cake 10-unshakable in one's determination core limb 11-first coil 12-second coil 13-outgoing line device 14-oil tank wall 15-lath 16-second tank wall 17-arc 18-support arm 19-U shape insulation board 20-metal is all pressed shielding insulation plate 21-outsourcing insulation 22-oil clearance 23-oil clearance supports insulative piece

Embodiment

Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail.

Following embodiment is indefiniteness embodiment of the present utility model.

Shown in Fig. 1,2,8, the utility model iron-core reactor comprises reactor main body 3, oil conservator 4, radiator 5.Reactor main body 3 comprises reactor device body, and described reactor device body comprises two independent device bodies, and two device bodies are formed two machine body structures, and two device bodies link together by its inner coil.Two device bodies all place in the reactor oil tank 6, and fuel tank 6 is communicated with oil conservator 4.

Shown in Fig. 3-7, in the two machine body structures of the utility model reactor, each device body comprises day shaped iron core 7 and coil 8, the core limb 10 that to be a plurality of cakes unshakable in one's determination 9 that have a centre bore in the middle of each day shaped iron core overlap with a plurality of air gaps, core limb 10 is strained up and down by a plurality of screw rods that draw that pass centre bore, upper and lower and both sides are to be formed by certain thickness core lamination, are clamped by core through screw rod, and coil 8 is sleeved on the core limb 10.

The arrangement mode of two device bodies can adopt and be arranged in parallel (shown in Fig. 3,4) or in-line arrangement (shown in Fig. 5,6).

The connected mode of coil 8 is a serial or parallel connection in the two device bodies.

Figure 10 shows that the mode of being connected in series, coil in the first a device body i.e. end of first coil 11 is the end of incoming cables, coil in the other end of first coil 11 and the second a device body i.e. end of second coil 12 is connected, and the other end of second coil 12 is a leading-out terminal, the formation coupled in series.

Figure 12 shows that the mode of being connected in parallel, the coil of two device body inside is that the end of incoming cables of two coils of two device bodies is connected in parallel as the end of incoming cables by parallel connection together, and the leading-out terminal of two coils is connected in parallel as leading-out terminal; First coil 11 adopts outlet parallel waies in end to be connected with second coil 12, and promptly first coil 11 and second coil 12 be respectively from an end inlet wire, from other end outlet, and parallel connection again.

Above-mentioned two kinds of connected modes are applicable to the reactor product that capacity is big, voltage is low, adopt this connected mode can simplify product structure.

Adopt Fig. 9 or connected mode shown in Figure 11 in the present embodiment, do not adopt the connected mode shown in Figure 10,12.

Figure 9 shows that the mode of being connected in series, first coil 11 adopts the mode of middle part inlet wire series connection to be connected with second coil 12, promptly first coil 11 adopts at the middle part of coil inlet wire, its end outlet and parallel connection, second coil 12 adopts at the middle part of coil inlet wire, its end outlet and parallel connection are connected with the middle part of second coil 12 after the 11 end parallel connections of first coil.

Figure 11 shows that the mode of being connected in parallel, first coil 11 adopts middle part inlet wire parallel way to be connected with second coil 12, parallel connection is the i.e. inlet wire in the middle part of promptly second coil 12 all adopts of coil in first coil 11 and the second device body of coil in the first device body together, and the end of incoming cables, middle part is connected in parallel, it is in parallel again after the end, two ends up and down of two coils is connected in parallel as leading-out terminal, promptly first coil adopts at the middle part of coil inlet wire, its upper and lower end parts outlet and parallel connection, second coil adopts at the middle part of coil inlet wire, its upper and lower end parts outlet and parallel connection, first coil is in parallel with the end of incoming cables, middle part of second coil, two coils, and the both ends parallel connection of the first coil both ends and second coil is as leading-out terminal.

Above-mentioned two kinds of connected modes are applicable to big capacity, high-tension reactor product, can guarantee that reactor has good performance of heat dissipation, and insulation property are reliable.

Shown in Figure 13 A, 13B, the outside diameter of arc 17 colligations coil in reactor device body that outgoing line device 13 of the present utility model is made by insulating board is as the support of whole outgoing line device 13.As shown in figure 14, along the middle part at two edges of the axial direction of arc 17 two support arms 18 that insulating board is made are housed, these two support arms 18 are supported with outgoing line device 13.

As shown in figure 15, described outgoing line device 13 comprises that the U-shaped metal all presses shielding 19, is overlying on the U-shaped metal and all presses the outer insulating barriers 20 of shielding 19, is overlying on metal and all presses the outer outsourcing insulation 21 of shield dielectric layer 20.All pressing at outsourcing insulation 21 and metal has oil clearance 22 between the shield dielectric layer 20.

Shown in Figure 16-18, two device bodies of reactor all place in the reactor oil tank in the utility model, and described fuel tank adopts the local double layer Oiltank structure.As shown in figure 16, can adopt double-deck oil tank wall structure at oil tank wall 14 over against the part of reactor device body (promptly near return yoke unshakable in one's determination place).

In the present embodiment, fuel tank 6 adopts ferrous materials to make, fuel tank 6 be shaped as rectangle or square.Wherein, the thickness of oil tank wall 14 is 6-16mm, and case base thickness degree is 20-60mm, and case top thickness degree is 10-40mm.

Shown in Figure 17,18, on the medial surface of oil tank wall 14, be welded with the laths of metal 15 of a plurality of levels and square crossing, described lath 15 has constituted a plurality of rectangle frames, can correspondingly weld the polylith rectangular steel plates again on the rectangle frame of a plurality of laths of metals, the polylith rectangular steel plates has formed second tank wall 16.Wherein, the thickness of lath 15 is 4-50mm, and the thickness of second tank wall 16 is 4-20mm.

As shown in Figure 8, be connected with two groups of radiators 5 on the fuel tank 6 of the utility model reactor.Radiator 5 is symmetrically distributed in two sides of reactor oil tank 6.

Claims

1. an iron-core reactor comprises reactor device body, it is characterized in that described reactor device body comprises two independent device bodies, and two device bodies are formed two machine body structures, and the coil (8) of two device body inside is linked together.

2. iron-core reactor according to claim 1, the coil (8) that it is characterized in that two device body inside is linked together and can passes through coupled in series, also can be by parallel connection.

3. iron-core reactor according to claim 2, the coil that it is characterized in that two device body inside by be coupled together in series can be in the first device body coil promptly an end of first coil (11) be the end of incoming cables, coil in the other end of first coil and the second a device body i.e. end of second coil (12) is connected, the other end of second coil is a leading-out terminal, forms coupled in series; Series connection also can be that first coil (11) adopts the middle part inlet wire to be connected in series with second coil (12), promptly first coil (11) adopts at the middle part of coil inlet wire, its both ends outlet and back in parallel are as the inlet wire of second coil (12), second coil adopts at the middle part of coil inlet wire, outlet after its both ends parallel connection is connected with the middle part inlet wire of second coil after the first coil both ends parallel connection.

4. iron-core reactor according to claim 2, the coil that it is characterized in that two device body inside can be that an end of two coils of two device bodies is connected in parallel as the end of incoming cables and does the end of incoming cables by parallel connection together, and the other end of two coils is connected in parallel as leading-out terminal and makes leading-out terminal; Parallel connection also can be the i.e. inlet wire in the middle part of promptly second coil (12) all adopts of coil in first coil (11) and the second device body of coil in the first device body together, and the end of incoming cables, middle part is connected in parallel, two coils in parallel again as leading-out terminal after two ends are connected in parallel up and down, promptly first coil (11) adopts at the middle part of coil inlet wire, its upper and lower end parts outlet and parallel connection, second coil (12) adopts at the middle part of coil inlet wire, its upper and lower end parts outlet and parallel connection, first coil is in parallel with the end of incoming cables, middle part of second coil, two coils, and the both ends parallel connection of the first coil both ends and second coil is as leading-out terminal.

5. iron-core reactor according to claim 1 is characterized in that the arrangement mode of two device bodies is arranged for being arranged in parallel or being in-line.

6. iron-core reactor according to claim 1 is characterized in that two device bodies respectively comprise day shaped iron core (7), and day shaped iron core middle part is a plurality of cake unshakable in one's determination (9) of centre bore and core limbs (10) that a plurality of air gap overlaps and forms of having.

7. iron-core reactor according to claim 1 is characterized in that the outgoing line device (13) of coil directly is connected on one's body the reactor device.

8. iron-core reactor according to claim 7, it is characterized in that described outgoing line device (13) comprises that the U-shaped metal all presses shielding (19), is overlying on the U-shaped metal and all presses the outer insulating barrier (20) of shielding, be overlying on metal and all press the outer outsourcing insulation (21) of shield dielectric layer, all pressing at outsourcing insulation (21) and metal has oil clearance (22) between the shield dielectric layer (20).

9. iron-core reactor according to claim 1 is characterized in that described reactor two device bodies all place in the same reactor oil tank (6).

10. iron-core reactor according to claim 9 is characterized in that described reactor oil tank adopts the structure of local double layer fuel tank, and a plurality of laths (15) are promptly arranged on the medial surface of oil tank wall (14), is fixed with second tank wall (16) on the lath (15).

11. iron-core reactor according to claim 10 is characterized in that described lath (15) comprises transverse slats and vertical lamellae, forms a plurality of grids, second tank wall (16) constitutes by covering on each grid with corresponding block of plate of each sizing grid.

12. iron-core reactor according to claim 11 is characterized in that described lath (15) adopts metal to make, its thickness is 4-50mm, and the thickness of second tank wall (16) is 4-20mm.

13., it is characterized in that being connected with radiator (5) on the fuel tank of reactor according to the described iron-core reactor of one of claim 1-12.

14. iron-core reactor according to claim 13 is characterized in that described radiator (5) is symmetrically distributed in a side of reactor oil tank or two sides or all around.