CN205881654U

CN205881654U - Oil -immersed transformer's installation of novel winding and cooling structure

Info

Publication number: CN205881654U
Application number: CN201620660206.1U
Authority: CN
Inventors: 卢均
Original assignee: Zhongshan City Feng Feng Mechanical And Electrical Equipment Co Ltd
Current assignee: Zhongshan City Feng Feng Mechanical And Electrical Equipment Co Ltd
Priority date: 2016-06-29
Filing date: 2016-06-29
Publication date: 2017-01-11
Anticipated expiration: 2026-06-29

Abstract

The utility model discloses an oil -immersed transformer's installation of novel winding and cooling structure, include: shell body, interior casing, vice limit and primary winding, the vice limit in the vice limit in a semi -cylindrical left side and the semi -cylindrical right side including separating each other sets up the annular groove in the vice limit, primary winding sets up in the annular groove, fills transformer oil in the annular groove, is surrounding the iron core in the primary winding, the iron core include with the vice limit fixed connection's in a left side left iron core and with the vice limit fixed connection's in the right side right iron core, including vice limit sets up in the casing, set up the cavity between the external installation shell body of inner shell, interior casing and shell body, the cavity is the annular, contains the cooling water in it, has winding simple to operate, advantage that transformer oil cooling speed is fast.

Description

The novel winding of a kind of oil-filled transformer is installed and cooling structure

Technical field

This utility model relates to a kind of power transmission system equipment, the novel winding peace of a kind of oil-filled transformer Dress and cooling structure.

Background technology

Oil-filled transformer is that a kind of structural shape of transformator, the i.e. coil of transformator are immersed in oil.Oil immersion Formula transformator due to fireproof need, be typically mounted at single transformator indoor or outdoors, have low cost, easy to maintenance, Good heat dissipation, capability of overload are strong, adapt to environment feature widely, are widely used in power system, industrial and mining establishment, traffic, post and telecommunications Department, R&D institution etc., carry out various high voltage electric equipments, electric elements, insulant under power frequency or high direct voltage is exhausted Edge strength test.Oil-filled transformer mainly includes that iron core, winding, fuel tank, conservator, insulated sleeve, shunting switch and gas continue Electrical equipment etc., the device body (winding and iron core) of transformator is incorporated into being full of in the fuel tank of transformer oil, and fuel tank steel plate is welded into.Cause This, when producing oil-filled transformer, not only need to weld extra fuel tank, in addition it is also necessary to winding and iron core are welded on fuel tank In, reduce the production efficiency of oil-filled transformer, and the quality of welding quality influences whether transformer insulated process, adds Manufacture difficulty, on the other hand, along with the raising of the capacity of transformator, its caloric value is the most increasing, to cooling performance it is also proposed that Higher requirement, especially under conditions of ambient temperature is higher, if the cooling rate of transformer oil is slower than winding coil Electrothermal calefactive rate, the temperature in fuel tank will be gradually increasing, and service behaviour and safety to transformator all have a significant impact.

Utility model content

The purpose of this utility model is that the novel winding providing a kind of oil-filled transformer is installed and cooling structure, to solve The problem certainly proposed in above-mentioned background technology.

For achieving the above object, the following technical scheme of this utility model offer:

The novel winding of a kind of oil-filled transformer is installed and cooling structure, including: shell body, inner housing, secondary and Armature winding, described secondary is cylindrical, and it includes semi-cylindrical left secondary limit spaced apart from each other and the right secondary of semi-cylindrical, secondary Can be made up of conductive material, such as hot rolling or cold rolling silicon steel, arrange annular groove in secondary, described armature winding is arranged on ring In connected in star, filling transformer oil in annular groove, surround iron core in armature winding, described iron core includes fixing with left secondary limit Connect left iron core and fix the right iron core being connected with right secondary；Secondary is arranged in inner housing, and described inner housing is O-ring Cylindrical shell, its surfaces externally and internally all scribbles insullac, and inner housing is respectively provided with oil return opening and oil-out up and down, described oil return opening and Connected by oil pipe between oil-out, oil pipe is also connected with oil pump；Shell body, inner housing and shell body are installed outside described inner housing Between cavity is set, described cavity be annular, fill cooling water in it.

As further program of the utility model: arrange some heat radiations being made of a highly heat conductive material on described shell body Fin.

As further program of the utility model: described shell body is made of a highly heat conductive material.

As further program of the utility model: described oil pipe is arranged on inner housing twist.

As further program of the utility model: between described armature winding and iron core, between armature winding and secondary It is respectively mounted the insulating barrier being made from a material that be thermally conductive.

As further program of the utility model: be respectively arranged to armature winding on described left secondary limit and right secondary and go out The outlet of line.

Compared with prior art, the beneficial effects of the utility model are: this utility model compares existing oil immersed type transformation Device structure has the advantage that

1, winding is easy for installation, eliminates welding procedure, improves production efficiency；

2, secondary cross-sectional area is big, and conductive capability is higher, is especially suitable for the output of big electric current；

3, to transformer oil Forced water cooling, it is greatly improved the cooling rate of transformer oil, and cooling structure is eased, makes Cooling system is easier for installation.

Accompanying drawing explanation

Fig. 1 is that the novel winding of a kind of oil-filled transformer installs the structure top view with cooling structure.

Fig. 2 is that the novel winding of a kind of oil-filled transformer installs the front section view with cooling structure.

Fig. 3 is that the novel winding of a kind of oil-filled transformer is installed and the structural representation of oil pipe in cooling structure.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise The every other embodiment obtained, broadly falls into the scope of this utility model protection.

Referring to Fig. 1～3, in this utility model embodiment, the novel winding of a kind of oil-filled transformer is installed and cooling Structure, including: shell body 1,

Inner housing 3, secondary 4 and armature winding 6, described secondary 4 is cylindrical, and it includes semi-cylindrical spaced apart from each other Left secondary limit 41 and the right secondary of semi-cylindrical 42, secondary 4 can be made up of conductive material, such as hot rolling or cold rolling silicon steel, in secondary 4 Arranging annular groove, described armature winding 6 is arranged in annular groove, fills transformer oil in annular groove, makes armature winding 6 Be immersed in wherein, in armature winding 6, surround iron core 7, described iron core 7 include the left iron core 71 that be connected fixing with left secondary limit 41 and with The right fixing right iron core 72 connected of secondary 42, the current path in left secondary limit 41 is to left iron core 71 by left secondary limit 41, the most quite In left secondary limit 41 around iron core 7 one circle, in like manner, right secondary 42 also corresponds to around iron core 7 one circle, therefore left and right secondary respectively with primary Transformation ratio between winding 6 is identical, and secondary combination in left and right forms complete secondary windings, owing to when assembling transformator, inciting somebody to action Left and right secondary combines, then armature winding 6 is put into annular groove just can realize the installation of winding, exempts from installation process Except welding procedure, drastically increase the production efficiency of transformator；Secondary 4 is arranged in inner housing 3, and described inner housing 3 is Sealing cylinder shape housing, its surfaces externally and internally all scribbles insullac, makes inner housing 3 external insulation, and inner housing about 3 is respectively provided with back Hydraulic fluid port 12 and oil-out 11, connected by oil pipe 9 between described oil return opening 12 and oil-out 11, be also connected with oil pump 8 in oil pipe 9； Described inner housing 3 is outer installs shell body 1, arranges cavity 2 between inner housing 3 and shell body 1, and described cavity 2 is annular, fills in it Cooling water, cooling water makes inner housing 3 be immersed in wherein, and the transformer oil in annular groove is pumped in oil pipe 9 and follows by oil pump 8 Ring, in oil pipe 9 in flow process, in transformer oil, heat is absorbed by cold water intaking, makes the temperature of transformer oil be substantially reduced, carries The high cooling effect to primary and secondary winding.

Some radiating fins 13 being made of a highly heat conductive material are set on described shell body 1, for improving in cooling water Heat scatters and disappears speed.

Described shell body 1 is made of a highly heat conductive material, can be effectively by the heat conduction in cooling water to radiating fin 13.

Described oil pipe 9 is arranged on inner housing 3 twist, can increase the oil pipe 9 path in cooling water, extend The flowing time of transformer oil, to improve cooling-down effect.

Be made from a material that be thermally conductive exhausted it is respectively mounted between described armature winding 6 and iron core 7, between armature winding 6 and secondary 4 Edge layer 5, it is ensured that the insulation between primary and secondary winding, prevents spark phenomenon.

It is respectively arranged to the outlet of armature winding 6 outlet on described left secondary limit 41 and right secondary 42, makes armature winding 6 Input/output terminal can be connected with power supply.

It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and And in the case of without departing substantially from spirit or essential attributes of the present utility model, it is possible to realize this practicality in other specific forms new Type.Therefore, no matter from the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, this practicality is new The scope of type is limited by claims rather than described above, it is intended that by the containing of equivalency in claim that fall All changes in justice and scope are included in this utility model.Should not be considered as any reference in claim limiting Involved claim.

Although moreover, it will be appreciated that this specification is been described by according to embodiment, but the most each embodiment only wraps Containing an independent technical scheme, this narrating mode of description is only that for clarity sake those skilled in the art should Description can also be formed those skilled in the art through appropriately combined as an entirety, the technical scheme in each embodiment May be appreciated other embodiments.

Claims

1. the novel winding of oil-filled transformer is installed and a cooling structure, including: shell body, inner housing, secondary and just Level winding, it is characterised in that: described secondary is cylindrical, and it includes that semi-cylindrical left secondary limit spaced apart from each other and semi-cylindrical are right Secondary, secondary is made up of hot rolling or cold rolling silicon steel, arranges annular groove in secondary, and described armature winding is arranged on annular groove In, filling transformer oil in annular groove, in armature winding, surround iron core, described iron core includes fixing with left secondary limit and is connected Left iron core and fix the right iron core being connected with right secondary；Secondary is arranged in inner housing, and described inner housing is sealing cylinder shape shell Body, its surfaces externally and internally all scribbles insullac, and inner housing is respectively provided with oil return opening and oil-out, described oil return opening and oil-out up and down Between connected by oil pipe, oil pipe is also connected with oil pump；Shell body is installed outside described inner housing, arranges between inner housing and shell body Cavity, described cavity is annular, fills cooling water in it.

The novel winding of a kind of oil-filled transformer the most according to claim 1 is installed and cooling structure, it is characterised in that: Some radiating fins being made of a highly heat conductive material are set on described shell body.

The novel winding of a kind of oil-filled transformer the most according to claim 2 is installed and cooling structure, it is characterised in that: Described shell body is made of a highly heat conductive material.

The novel winding of a kind of oil-filled transformer the most according to claim 1 is installed and cooling structure, it is characterised in that: Described oil pipe is arranged on inner housing twist.

The novel winding of a kind of oil-filled transformer the most according to claim 1 is installed and cooling structure, it is characterised in that: Between described armature winding and iron core, between armature winding and secondary, it is respectively mounted the insulating barrier being made from a material that be thermally conductive.

The novel winding of a kind of oil-filled transformer the most according to claim 1 is installed and cooling structure, it is characterised in that: The outlet of armature winding outlet it is respectively arranged on described left secondary limit and right secondary.