CN204834261U - Traction transformer cooling system - Google Patents
Traction transformer cooling system Download PDFInfo
- Publication number
- CN204834261U CN204834261U CN201520475264.2U CN201520475264U CN204834261U CN 204834261 U CN204834261 U CN 204834261U CN 201520475264 U CN201520475264 U CN 201520475264U CN 204834261 U CN204834261 U CN 204834261U
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- CN
- China
- Prior art keywords
- oil
- transformer
- cooling unit
- coil
- conservator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a traction transformer cooling system. Including transformer tank, oil conservater and cooling unit, cooling unit's air intake is located cooling unit's side, and cooling unit's air outlet is located the cooling unit bottom, transformer tank is through butterfly valve, oil pump, bellows and lead oil pipe and cooling unit and link to each other, transformer coil is the laminar structure, installs the coil oil duct between the layer, and the coil oil duct has a perfect understanding the coil end to end, forms the inside oil circuit of coil, the horizontal installation position of oil conservater is higher than transformer tank, the oil conservater passes through metal collapsible tube to be connected with transformer tank, and oil conservater and metal collapsible tube's interface is located the bottom of oil conservater, the oil conservater is equipped with the desiccator to be linked together through desiccator and external atmosphere. The utility model provides the high cooling efficiency and the operational safety ability of transformer.
Description
Technical field
The utility model belongs to track traffic pulling equipment technical field, is specifically related to a kind of traction transformer cooling system.
Background technology
Traction transformer is vital parts in rolling stock trailer system.Traction transformer has energy loss in its running, change into heat energy, transformer temperature is made to increase, for this reason, insulating oil can be poured in oil tank of transformer, absorb heat energy by insulating oil, and rely on cooling back installation to carry out circulating cooling to insulating oil, by Fuel Tanking Unit for subsequent use, real-time supply or deposit are carried out to the insulating oil in oil tank of transformer simultaneously.
Traction transformer cooling device in prior art comprises oil conservator and cooling unit.Oil conservator is generally welded on fuel tank sidewall, and need the independent vacuum chamber that airtight, the chamber that this chamber is communicated by pipeline and another and air is connected, and when in oil tank of transformer, insulating oil needs to compensate, insulating oil is supplemented oil-feed tank inside by atmospheric pressure.But this structure makes oil conservator internal structure become very complicated, not up to standard once separate chamber welding sealing property, may reveal into extraneous gas in oil tank of transformer, insulating part is caused to expose in an atmosphere, reduce its insulation property, acceleration insulating part is aging, finally shortens the working life of traction transformer.
Summary of the invention
The utility model provides a kind of traction transformer cooling system, improves the security performance of cooling effectiveness and transformer operation.
In order to solve the problems of the technologies described above, the utility model proposes a kind of traction transformer cooling system, comprise oil tank of transformer, oil conservator and cooling unit, the air inlet of described cooling unit is positioned at the side of cooling unit, and the air outlet of cooling unit is positioned at bottom cooling unit.
Further, described oil tank of transformer is connected with cooling unit by butterfly valve, oil pump, bellows and oil guide pipe.
Further, transformer coil is layered structure, and interlayer installs coil oil duct, and coil oil duct through track circle end to end, forms coil inside oil circuit.
Further, the horizontal installation position of described oil conservator is higher than oil tank of transformer.
Further, described oil conservator is connected with oil tank of transformer by metal hose, and the interface of oil conservator and metal hose is positioned at the bottom of oil conservator.
Further, described oil conservator is equipped with dehydrating breather, and is connected with ambient atmosphere by dehydrating breather.
Compared with prior art, its remarkable advantage is the utility model, and the utility model adopts free-standing oil conservator, and oil conservator is installed on vehicle body upper portion higher than mailbox location place; From oil conservator bottom by metal hose, insulating oil guiding is entered fuel tank case lid oil-in, this structure keeps there is certain malleation in fuel tank under gravity, ensure that insulating oil is full of fuel tank, and effectively discharges gas in fuel tank; Transformer heat produces primarily of coil, the utility model is by optimizing loop construction, through coil long oil road is end to end installed between each layer of coil, the each layer of coil and the abundant heat exchange of oil duct, insulating oil divides and flows to each layer oil duct, significantly add the heat exchange area of coil and insulating oil, greatly improve cooling effectiveness; The utility model, by the complete insulating oil circulation of oil tank of transformer, cooling unit, oil conservator three and the mechanism that compensates, realizes transformer Cooling, control transformer temperature rise, thus realizes that traction transformer is stable, safe, reliable and effective operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model traction transformer cooling system.
Fig. 2 is the schematic diagram of the utility model coil oil duct.
Fig. 3 is the partial enlarged drawing of Fig. 2.
In accompanying drawing, sequence number illustrates:
1: oiling ball valve; 2: fuel tank; 3: dehydrating breather; 4: oil conservator; 5: ball valve; 6: butterfly valve; 7: bleeder plug; 8: bellows; 9: air relief cock; 10: cooling unit; 11: coil oil duct.
Embodiment
Easy understand, according to the technical solution of the utility model, when not changing connotation of the present utility model, one of ordinary skill in the art can imagine the numerous embodiments the utility model traction transformer cooling system.Therefore, following embodiment and accompanying drawing are only the exemplary illustrations to the technical solution of the utility model, and should not be considered as of the present utility model all or the restriction be considered as technical solutions of the utility model or restriction.
As shown in Figure 1, traction transformer cooling system described in the utility model, critical piece comprises: traction transformer fuel tank 2, oil conservator 4, cooling unit 10.Oil tank of transformer 2 is connected with cooling unit 10 by butterfly valve 6, oil pump, bellows 8 and oil guide pipe.Under the state that butterfly valve 6 is opened, the deep fat in oil tank of transformer 2 is extracted out by oil pump, injects cooling unit 10.Deep fat is by oil-air heat exchange in the heat exchanger of cooling unit 10, and heat is transferred to air by insulating oil, realizes cooling.In cooling unit 10, driven by motor fan is drawn through the cold air that filter filters particle from cooling unit side, blow to heat exchanger, and the hot-air heated up after completing heat exchange, through the blowout of cooling unit bottom, completes air endothermic process; Simultaneously due to air ports separation cooling unit side and bottom, the hot-air of discharging can be avoided again to be entered circulation by fan inspiration cooling unit, therefore, the air that fan sucks is cold air substantially, improves the heat-sinking capacity of air and the cooling effectiveness of cooling unit.Through return injection transformer fuel tank 2 after insulating oil cooling.After cold oil enters fuel tank 2, through the water conservancy diversion of folder, inject coil oil duct 11.As shown in Figures 2 and 3, coil is layered structure, and interlayer installs coil oil duct 11, and the through coil of coil oil duct 11 end to end, forms coil inside oil circuit.Cold oil is divided into multichannel oil flow field by coil oil duct 11, insulating oil is fully contacted with every layer line circle by coil oil duct 11, realize the heat exchange of maximum area, reduce temperature when coil and the work of each insulating part, reduce insulating part aging speed, improve insulating part working life, thus ensured that transformer realizes design working life; Insulating oil can also improve coil interlayer proof voltage grade simultaneously, promotes the work safety of transformer under burst high-voltage impact.
Oil conservator 4 is installed on vehicle upper, and horizontal level is higher than oil tank of transformer 2.Oil conservator 4 by the metal hose that is connected with bottom it by transformer insulation oil injection transformer fuel tank 2 case lid oiler; Position applies normal pressure higher than the insulating oil of oil conservator 4 inside of fuel tank to oil tank of transformer 2 inside, ensures that oil tank of transformer 2 fills oil; And when oil tank of transformer 2 inside goes out gas because of insulating oil degradation and decomposition, gas can be discharged oil tank of transformer 2 by metal hose, be entered oil conservator 4 in time.Oil conservator 4 is equipped with dehydrating breather 3, and oil conservator 4 is connected with ambient atmosphere by dehydrating breather 3.Oil tank of transformer 2 internal temperature declines, and when insulating oil shrinks, oil conservator 4 compensates insulating oil by metal hose and enters oil tank of transformer; Oil conservator 4 compensates into air by dehydrating breather 3 from the external world simultaneously, and air is filtered by dehydrating breather, by impurity and steam filtering, ensures that oil conservator 4 built-in electrical insulation oil does not pollute by outside atmosphere.
Utility model works process:
(1) oiling: as Fig. 1, under oil tank of transformer 2, oil conservator 4, cooling unit 11 entirety are placed in vacuum environment, are connected outside fuel injection pipe with fuel feeding valve 1, open fuel feeding valve 1, ball valve 5, butterfly valve 6, carry out oiling; After insulating oil fills fuel tank, pour in oil conservator 4 by metal hose.Oil conservator 4 has watch window, by oil level in transparent plexiglass plate Real Time Observation oil conservator.Observation window is other is carved with oil level graduation mark corresponding to various oil temperature, and the scale that oil temperature is corresponding when oil level arrives oiling stops oiling.Subsequently transformer is taken out from vacuum environment, quietly put 24 hours, observe oil level whether at the scale that current oil temperature is corresponding, if any departing from, suitably carrying out benefit and draining the oil.
(2) oil conservator stores and compensator transformer fuel tank insulating oil: when transformer runs, there is energy loss, and change into the insulating oil in heat heating transformer fuel tank 2, make oil temperature increase, and insulating oil expands; The insulating oil expanded out imports oil conservator 4 by metal hose, realizes the function that oil conservator 4 stores expansion insulating oil.When transformer power output diminishes or transformer quits work, energy loss reduces or vanishing, the cooling power of transformer is greater than the heat of unit interval transformer energy loss generation, insulating oil temperature declines, the volume contraction of insulating oil reduces, and now, the insulating oil in oil conservator 4 can the insulating oil that reduces of compensator transformer fuel tank inner volume, insulating oil in oil conservator enters in oil tank of transformer by metal hose, realizes the compensation of insulating oil.
(3) insulating oil expands and discharges gas in fuel tank: transformer is in During Process of Long-term Operation, and insulating oil can slow degradation and decomposition, and generating portion gas, gas can insulate by lowering device body, is also unfavorable for the cooling of device body.Oil conservator 4 is arranged on oil tank of transformer 2 top, and its built-in electrical insulation oil forms certain malleation to fuel tank, makes the gas of generation can discharge oil tank of transformer in time, enters oil conservator, realize exchanging further by the dehydrating breather on oil conservator and air.
Claims (6)
1. a traction transformer cooling system, comprises oil tank of transformer, oil conservator and cooling unit, it is characterized in that, the air inlet of described cooling unit is positioned at the side of cooling unit, and the air outlet of cooling unit is positioned at bottom cooling unit.
2. traction transformer cooling system as claimed in claim 1, is characterized in that, described oil tank of transformer is connected with cooling unit by butterfly valve, oil pump, bellows and oil guide pipe.
3. traction transformer cooling system as claimed in claim 1, it is characterized in that, transformer coil is layered structure, and interlayer installs coil oil duct, and coil oil duct through track circle end to end, forms coil inside oil circuit.
4. traction transformer cooling system as claimed in claim 1, it is characterized in that, the horizontal installation position of described oil conservator is higher than oil tank of transformer.
5. traction transformer cooling system as claimed in claim 1, it is characterized in that, described oil conservator is connected with oil tank of transformer by metal hose, and the interface of oil conservator and metal hose is positioned at the bottom of oil conservator.
6. traction transformer cooling system as claimed in claim 1, it is characterized in that, described oil conservator is equipped with dehydrating breather, and is connected with ambient atmosphere by dehydrating breather.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520475264.2U CN204834261U (en) | 2015-06-30 | 2015-06-30 | Traction transformer cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520475264.2U CN204834261U (en) | 2015-06-30 | 2015-06-30 | Traction transformer cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204834261U true CN204834261U (en) | 2015-12-02 |
Family
ID=54691833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520475264.2U Expired - Fee Related CN204834261U (en) | 2015-06-30 | 2015-06-30 | Traction transformer cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204834261U (en) |
-
2015
- 2015-06-30 CN CN201520475264.2U patent/CN204834261U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20180630 |