CN207883453U - Hermetically sealed oil immersed type amorphous alloy iron core distribution transformer - Google Patents

Abstract

A kind of hermetically sealed oil immersed type amorphous alloy iron core distribution transformer, including fuel tank, the transformer body and tap switch being arranged in the fuel tank, the fuel tank includes babinet and case lid, the babinet and the case lid to form Full sealed box type structure by welding or being bolted, the transformer body includes amorphous alloy iron core, low pressure winding and high-voltage winding, the amorphous alloy iron core is fixedly mounted on the fuel tank internal, the low pressure winding is sleeved on the amorphous alloy iron core, the high-voltage winding is sleeved in the low pressure winding, the tap switch is mounted on the case lid, the side of the babinet and bottom inner portion are equipped with interlayer, the interlayer inside spin coiling is equipped with corrugated fins pipe, the corrugated fins pipe connects cooling water supply pipe.The hermetically sealed oil immersed type amorphous alloy iron core distribution transformer have the advantages that design science, enhancing radiating efficiency, reduce fuel tank in transformer oil by moisture capacity, reduce maintenance cost, low noise.

Description

Hermetically sealed oil immersed type amorphous alloy iron core distribution transformer

Technical field

The utility model is related to transformer equipment fields, specifically, are related to a kind of hermetically sealed oil immersed type amorphous alloy Core distribution transformer.

Background technology

Transformer is the device for changing alternating voltage using the principle of electromagnetic induction, and main member is primary coil, secondary Grade coil and iron core（Magnetic core）.Major function has：Voltage transformation, current transformation, impedance transformation, isolation, voltage stabilizing（Magnetic saturation transformation Device）Deng.It is the economic transmission of electric energy, flexible allocation and safe handling important link, occupy in power grid very important Loss rich and influential family in status and power transmission and transformation, in losses of distribution network transformer loss account for about 30%-60%, wherein no-load loss Account for about the 50%-80% of transformer loss, therefore it is the energy-efficient important channel of power grid to promote energy-efficient transformer.Non-crystaline amorphous metal Transformer ratio tradition silicon steel transformer noload losses declines 75% or more, and the negative of many transformers in rural power grids is especially in power distribution network Load rate is less than 20%, therefore, substitutes traditional transformer with high energy consumption using amorphous alloy transformer, energy-saving effect is notable, economic benefit Height is the energy-saving preferred unit of power distribution network.

Transformer station high-voltage side bus safety and service life are particularly important, the insulation ag(e)ing of transformer seriously affect its operational safety and Service life.

The immediate cause of oil-immersed transformer insulation ag(e)ing is high temperature, and remote cause is that have cause transformer oil to make moist micro- Impurity etc. in water, oil, general transformer generates heat and forms high temperature in the process of running, after heat transfer is to transformer oil, then Oil dropping apparatus is transmitted through transformer oil, fuel tank radiates outward through cooling fin, and air-cooled radiating efficiency is low, and oil tank of transformer is for a long time High temperature cause fuel tank outer surface air layer formed high temperature thermal resistance, cannot achieve effective heat dissipation, need to increase cooling device such as wind turbine into Row heat dissipation, had not only increased cost but also occupied space；And amorphous alloy transformer is at runtime, will produce larger noise, influences The life of neighbouring resident.

In order to solve the above problems, people are seeking always a kind of ideal technical solution.

Utility model content

The purpose of this utility model is in view of the deficiencies of the prior art, to provide a kind of design science, enhancing heat dissipation effect Transformer oil is by moisture capacity, the hermetically sealed oil immersed type amorphous alloy iron core distribution of reduction maintenance cost, low noise in rate, reduction fuel tank Transformer.

To achieve the goals above, technical solution used by the utility model is：A kind of hermetically sealed oil immersed type amorphous conjunction Golden iron core distribution transformer, including fuel tank, the transformer body and tap switch that are arranged in the fuel tank, the fuel tank include Babinet and case lid, the babinet and the case lid to form Full sealed box type structure, the transformer by welding or being bolted Device body include amorphous alloy iron core, the low pressure winding of copper foil winding structure and multi-layer cylindrical structure high-voltage winding, it is described non- Peritectic alloy iron core is fixedly mounted on the fuel tank internal, and the low pressure winding is sleeved on the amorphous alloy iron core, the height Pressure winding is sleeved in the low pressure winding, and the tap switch is mounted on the case lid, the side and bottom end of the babinet Inside is equipped with interlayer, and the interlayer inside spin coiling is equipped with corrugated fins pipe, and the corrugated fins pipe connects cooling water Pipe.

It is described on base, it is filled out equipped with acoustical cotton in the corrugated fins pipe and the interbedded gap.

It is described on base, oil level indicator is installed to show the liquid level of transformer oil in the fuel tank on the case lid.

Described on base, the upper end of the babinet is integrally formed with the corrugated plate accommodating chamber of outwardly convex, the corrugated plate appearance Receive the flexible corrugated plate of intracavitary sealed set.

The utility model has substantive features and progress compared with the prior art, specifically, the utility model it is described Corrugated fins pipe connects cooling water supply pipe, and the corrugated fins pipe dish is wound in the interlayer, makes in the corrugated fins pipe Cold water and the fuel tank in transformer oil form heat convection, strengthen radiating efficiency, keep the heat of transformer oil quick It is transferred out of the fuel tank, without increasing other cooling devices, can avoid the fuel tank causes insulation old in high temperature for a long time Change, ensures transformer station high-voltage side bus safety, improve the service life, moreover, temperature increases after cold water heat absorption in the corrugated fins pipe, then it is described Flexible deformation can occur for corrugated fins pipe, be not easy to be damaged.

Further, the babinet and the case lid to form Full sealed box type structure by welding or being bolted, then institute It states and does not set oil conservater on fuel tank, ensure that transformer oil completely cuts off completely with air, ensure the leakproofness of transformer well, reduce and become It is oily in depressor fuel tank to be reduced by moisture capacity because micro- water leads to the number that transformer integrally change oil, greatly reduce transformer dimension Protect cost.

Further, the acoustical cotton effectively can reduce noise so that the operation of transformer bass, avoids influencing nearby to occupy The people's livelihood is lived, and the elastic corrugated elastic expandable can balance the body that transformer oil is generated because expanding with heat and contract with cold in the fuel tank Product variation.

Its with design science, enhancing radiating efficiency, reduce in fuel tank transformer oil by moisture capacity, reduce maintenance cost, low The advantages of noise.

Description of the drawings

Fig. 1 is the structural schematic diagram of the utility model.

In figure：1. transformer body；2. tap switch；3. babinet；4. case lid；5. interlayer；6. corrugated fins pipe；7. cooling Water feed pipe；8. oil level indicator；9. elastic corrugated.

Specific implementation mode

Below by specific implementation mode, the technical solution of the utility model is described in further detail.

As shown in Figure 1, a kind of hermetically sealed oil immersed type amorphous alloy iron core distribution transformer, including fuel tank, setting are described Transformer body 1 in fuel tank and tap switch 2, the fuel tank include babinet 3 and case lid 4, the babinet 3 and the case lid 4 Full sealed box type structure is formed by welding or being bolted, the transformer body 1 includes amorphous alloy iron core, copper foil coiling The high-voltage winding of the low pressure winding and multi-layer cylindrical structure of structure, the amorphous alloy iron core are fixedly mounted in the fuel tank Portion, the low pressure winding are sleeved on the amorphous alloy iron core, and the high-voltage winding is sleeved in the low pressure winding, described Tap switch 2 is mounted on the case lid 4, and the side of the babinet 3 and bottom inner portion are equipped with interlayer 5, spiral shell in the interlayer 5 Capstan is arranged with corrugated fins pipe 6, and the corrugated fins pipe 6 connects cooling water supply pipe 7.

It is filled out equipped with acoustical cotton in gap between the corrugated fins pipe 6 and the interlayer 5.

Oil level indicator 8 is installed to show the liquid level of transformer oil in the fuel tank on the case lid 4.

The upper end of the fuel tank is integrally formed with the corrugated plate accommodating chamber of outwardly convex, the corrugated plate accommodating chamber interior sealing It is provided with elastic corrugated 9.

The operation logic of the hermetically sealed oil immersed type amorphous alloy iron core distribution transformer of the utility model is the cooling water Feed pipe 7 provides cooling water to the corrugated fins pipe 6, and the corrugated fins pipe 6 is coiled in the interlayer 5, makes the wave Cold water in line heat-dissipating pipe 6 forms heat convection with the transformer oil in the fuel tank, strengthens radiating efficiency, makes transformer oil Heat fast transfer go out the fuel tank, without increasing other cooling devices, can avoid the fuel tank for a long time in high temperature and Lead to insulation ag(e)ing, ensure transformer station high-voltage side bus safety, improve the service life, moreover, temperature after cold water absorbs heat in the corrugated fins pipe 6 It increases, then flexible deformation can occur for the corrugated fins pipe 6, be not easy to be damaged；The babinet 3 and the case lid 4 pass through welding Or be bolted and to form Full sealed box type structure, then do not set oil conservater on the fuel tank, ensure transformer oil and air completely every Absolutely, ensure the leakproofness of transformer well, reduce oily by moisture capacity in oil tank of transformer, reduce because micro- water causes transformer to need The number integrally changed oil greatly reduces transformer maintenance cost；The acoustical cotton effectively can reduce noise so that transformer Bass is run, and avoids influencing neighbouring resident living, elastic corrugated 9 elastic expandable can balance transformation in the fuel tank The volume change that device oil is generated because expanding with heat and contract with cold.

Finally it should be noted that:Above example is only to illustrate the technical solution of the utility model rather than limits it System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should Understand：It can still modify to specific embodiment of the present utility model or some technical characteristics are equally replaced It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model In range.

Claims (4)

1. a kind of hermetically sealed oil immersed type amorphous alloy iron core distribution transformer, including fuel tank, the transformation that is arranged in the fuel tank Device device body and tap switch, the fuel tank include babinet and case lid, and the babinet and the case lid are by welding or being bolted Form Full sealed box type structure, the transformer body includes amorphous alloy iron core, the low pressure winding of copper foil winding structure and more The high-voltage winding of layer cylinder mode, the amorphous alloy iron core are fixedly mounted on the fuel tank internal, the low pressure winding set On the amorphous alloy iron core, the high-voltage winding is sleeved in the low pressure winding, and the tap switch is mounted on institute It states on case lid, it is characterised in that：The side of the babinet and bottom inner portion are equipped with interlayer, and the interlayer inside spin coiling is equipped with Corrugated fins pipe, the corrugated fins pipe connect cooling water supply pipe.

2. hermetically sealed oil immersed type amorphous alloy iron core distribution transformer according to claim 1, it is characterised in that：The wave It is filled out equipped with acoustical cotton in line heat-dissipating pipe and the interbedded gap.

3. hermetically sealed oil immersed type amorphous alloy iron core distribution transformer according to claim 2, it is characterised in that：The case It covers and oil level indicator is installed to show the liquid level of transformer oil in the fuel tank.

4. hermetically sealed oil immersed type amorphous alloy iron core distribution transformer according to claim 3, it is characterised in that：The case Integrally formed with the corrugated plate accommodating chamber of outwardly convex, the corrugated plate accommodating chamber interior sealing is provided with elastic corrugated for the upper end of body Piece.