CN1794379A - Evaporation cooling transformer - Google Patents
Evaporation cooling transformer Download PDFInfo
- Publication number
- CN1794379A CN1794379A CN 200510086889 CN200510086889A CN1794379A CN 1794379 A CN1794379 A CN 1794379A CN 200510086889 CN200510086889 CN 200510086889 CN 200510086889 A CN200510086889 A CN 200510086889A CN 1794379 A CN1794379 A CN 1794379A
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- transformer
- pipe
- guide shell
- evaporative cooling
- air inlet
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Abstract
This invention relates to a deflector evaporation-cooling transformer including a core, a low voltage coil, a high voltage coil, a lead, a deflector tube and an evaporation-cooling system composed of an air intake, an air collector, a collecting pipe, a liquid feed back tube and a condenser characterizing that the deflector tube is set inside or outside of the coil, cooling medium is added in the deflector tube, its upper part is connected with the lower part of the air intake, the upper part of which is connected with the lower part of the collector, the upper part of which is connected with the condenser, its lower part is connected with the upper part of the collector pipe, its lower part is connected with the upper part of collector pipe and the lower part is connected with the liquid feed back tube and the core is cooled by air.
Description
Technical field
The present invention relates to a kind of transformer, particularly water conservancy diversion cartridge type vapour-cooled transformer.
Background technology
At present, the type of cooling that most transformer adopted is air cooling, oil cooling etc.Continuous increase along with capacity, the disadvantage of the above-mentioned type of cooling is more and more obvious, evaporation cooling technique (also can be described as phase transformation falling temperature technique, boiling heat transfer technology etc.) is the significant improvement to the above-mentioned type of cooling, the operating temperature of transformer is reduced greatly, and economy and fail safe are significantly improved.
Application number is that to adopt the compound of fluorine be coolant for novel vapour-cooled transformer that utility model patent that the evaporative cooling power transformer that proposes of the utility model patent of 99237863.x and application number are 98200236.x proposes, replace transformer oil to be placed in the fuel tank coolant, the iron core of transformer and coil all place evaporative cooling medium, the heat that is absorbed transformer by coolant is vaporized, produce decalescence, through condenser cooling liquefaction again, circulation so repeatedly.And this coolant has fire-fighting, has overcome the deficiency of oil-filled transformer, dry-type transformer and gas-insulated transformer, good cooling results, reliability height.But, because the use of Hydrochlorofluorocarbons (HCFC) has been subjected to the restriction of environmental protection at present, this class transformer can only be used the evaporative cooling medium of compliance with environmental protection requirements instead, because the evaporative cooling medium of compliance with environmental protection requirements costs an arm and a leg, makes the price of vapour-cooled transformer also become very expensive simultaneously.Therefore, though vapour-cooled transformer can effectively overcome the shortcoming of oil-filled transformer, dry-type transformer and gas-insulated transformer, must be replaced by because of evaporative cooling medium and to satisfy novel medium environmental requirement, expensive, its economy is no longer optimistic.
Toshiba Corp, Hitachi, Ltd, Mitsubishi Electric and FUJI ELECTRIC were once published an article on international publication (IEEE Transactions on Power Delivery) to nineteen ninety-five in 1988, a kind of gas-insulated transformer (EGIT) is proposed, promptly replace transformer oil to serve as coolant with fluorocarbons, dielectric is a SF6 gas.Its advantage is not flammable and owing to be provided with special-purpose cooling duct around coil, coolant only circulates in passage, than the infiltration type vapour-cooled transformer, can save expensive evaporative cooling medium widely.But it is laterally that its shortcoming is the cooling duct, in order to realize the circulation of coolant in passage, must adopt pump to drive, and needs in addition the isostasy device is set, and causes complex structure.This EGIT has carried out the test of model machine.
Summary of the invention
For overcoming the prior art vapour-cooled transformer in the deficiency aspect the economy, the present invention proposes a kind of vapour-cooled transformer, place a hollow guide shell respectively in the inboard or the outside of coil.Put into coolant in guide shell, the less iron core of transformer heating adopts air cooling.Coolant can be single evaporative cooling medium, or the blending agent of two or more evaporative cooling medium, also can be one or more the evaporative cooling medium and the blending agent of other liquid mediums.The total measurement (volume) of guide shell is less, can reach the purpose that reduces expensive evaporative cooling medium consumption, thereby improves the economy of vapour-cooled transformer, and the dependence of the liquid in guide shell action of gravity, can realize not having the pump self-loopa.
The present invention is made up of iron core, coil, guide shell, lead-in wire and evaporative cooling system.
Evaporative cooling system of the present invention is made up of air inlet pipe, discharge, collecting pipe, liquid back pipe and condenser.
Guide shell material of the present invention can be stainless steel, metal, epoxy, phenolic aldehyde, nylon, plastics, rubber etc.
Evaporative cooling medium of the present invention comprises following three series:
1) Vertrel series comprises: XF (HFC 43-10mee), XM (HFC 43-10/ methyl alcohol), XE (HFC 43-10/ ethanol), XP (HFC 43-10/IPA), MCA (HFC 43-10/t-DCE), MCA+ (HFC43-10/t-DCE/ pentamethylene), SMT (HFC 43-10/t-DCE/ methyl alcohol), XMS (HFC 43-10/t-DCE/ pentamethylene/methyl alcohol), XMS+ (HFC 43-10/t-DCE/ pentamethylene/methyl alcohol), X-DA (HFC 43-10/ surfactant/antistatic agent), X-B3 (HFC 43-10/ butyl glycol ether), Xsi (HFC 43-10/OS-10), XH, X-P10 etc.
2) ASAHIKLIN series comprises: AE-3000, AE-3100E, AK225 etc.
3) perfluor tertiary amine series, comprise: perfluoro triethylamine (be called for short FY-131), perfluamine, perfluorotributylamine (being called for short FY-111), perfluor triamylamine (being called for short FY-121), perfluoro-cyclicether (being called for short FY-04), and the Registering product of the following trade mark of Minnesota Mining and Manufacturing Company: FC-40, FC-43, FC-70, FC-71, FC-72, FC-722, FC-77, FC-84, FC-87, FC-104, FC-3283, FC-5312, H-27, H-125, H-100, H-400, H-190, HFE-7100, PF-5060, PF-5080, FX-3250 etc.
More than the evaporative cooling medium of three series all have colourless, tasteless, nontoxic (or low toxicity), characteristics such as do not burn.
Other liquid that the present invention mixes with evaporative cooling medium can be transformer oil, ultrahigh voltage transformer oil, capacitor oil, cable oil, tung oil, linseed oil, castor oil, alkyl benzene (AB), alkyl naphthalene, isopropyl biphenyl (being IPB or Wemcol), diarylethane (PXE), inclined to one side benzene tricarbonic acid's three 2-Octyl Nitrites (being called for short TOTM), phosphoric acid ester insulating oil [(RO) 3P=0], α liquid (Alpha's silicon liquid), poly-α alkene, Midel7131 and silicone oil etc.
The consumption principle of blending agent is: the evaporative cooling medium consumption is 0.5～100% of whole medium volumes, and corresponding, the consumption of other liquid is 99.5～0% of whole medium volumes.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments.
Fig. 1 is the structural representation of the embodiment of single-phase transformer of the present invention.
Among Fig. 1: 10 iron cores, 20 low-voltage coils, 30 high-tension coils, 40 coolants, 50 lead-in wires, 60 condensers, 70 air inlet pipe, 80 discharges, 90 collecting pipes, 100 liquid back pipes, 110 supports, 120 guide shells, 130 stays, 140 upper conduits, 150 downcomers.
Embodiment
Vapour-cooled transformer of the present invention is made up of iron core 10, low-voltage coil 20, high-tension coil 30, coolant 40, lead-in wire 50, condenser 60, air inlet pipe 70, discharge 80, collecting pipe 90, liquid back pipe 100, support 110, guide shell 120, stay 130, upper conduit 140, downcomer 150.
One of specific embodiment of the invention as shown in drawings, this transformer is a single-phase transformer, a hollow guide shell 120 is placed in inboard at the low-voltage coil 20 of this transformer, between low-voltage coil 20 and high-tension coil 30, a hollow guide shell 120 is respectively placed in high-tension coil 30 outsides respectively, put into coolant 40 in the guide shell 120, coolant 40 can be single evaporative cooling medium, or the blending agent of two or more evaporative cooling medium, also can be one or more the evaporative cooling medium and the blending agent of other liquid mediums.The top of guide shell 120 is connected with upper conduit 140 bottoms, upper conduit 140 tops link to each other with air inlet pipe 70 bottoms, air inlet pipe 70 tops link to each other with discharge 80 bottoms, discharge 80 tops link to each other with condenser 60, condenser 60 bottoms link to each other with collecting pipe 90 tops, collecting pipe 90 bottoms link to each other with the liquid back pipe 100 of downcomer 150 bottoms, the top of downcomer 150 links to each other with guide shell 120 bottoms, support 110 plays the effect of supporting condenser 60, stay 130 plays the effect of supporting guide shell 120 and occupies cooling space, lowers the effect of medium consumption.The shape of stay 130, material can be any.
For the transformer that adopts layer coil, pool formula coil and disc coil,, can also place one or several guide shells 120 in the inside of coil in order further to strengthen cooling effect.The cross sectional shape of guide shell 120 also can be arbitrary shape except that circle.
The top of the upper conduit 140 among the specific embodiment of the invention is directly to link to each other with air inlet pipe 70, the bottom of downcomer 150 is directly to link to each other with liquid back pipe 100, in fact upper conduit 140 and downcomer 150 can also be respectively connecting tube by other identical or different materials link to each other with liquid back pipe 100 with air inlet pipe 70.
Air inlet pipe 70 and liquid back pipe 100 in the above embodiment are single, in fact, the air inlet pipe 70 involved in the present invention and the quantity of liquid back pipe 100 can also be many, can interconnect between many, can not interconnect yet, many air inlet pipe 70 and liquid back pipe 100 arrangement positions are any, can come a side of transformer, also can come the both sides of transformer, and the cross sectional shape of air inlet pipe 70 and liquid back pipe 100 is any, and air inlet pipe 70 and liquid back pipe 100 can be long tube, bend pipe, pipe or elliptical tube etc.
The present invention is similar for the situation and the single-phase transformer of three-phase transformer.
Coil involved in the present invention can also comprise middle pressure, pressure regulation, balance coil etc. except that low-voltage coil, high-tension coil.
The insulation form of transformer adopting involved in the present invention can be air insulation, SF
6Gas-insulated, SF
6With the vacuum or the partial vacuum insulation of the mix insulation of other gases, epoxy casting insulation and band housing, or the applied in any combination of above-mentioned several dielectric, insulation technology etc.
The electric pressure of transformer involved in the present invention is from 0.4KV to 1050KV.
Condenser of the present invention can be water condenser or air-cooled condenser two classes, if the secondary cooling medium is a water, then adopts water condenser; If the secondary cooling medium is an air, then adopt aerial condenser.
The operation principle of flow-guiding type vapour-cooled transformer of the present invention is: when transformer is worked, iron core 10, coil (comprising low-voltage coil 20, high-tension coil 30 or middle pressure, pressure regulation, balance coil etc.) heating, unshakable in one's determination 10 are cooled off by surrounding air, coil is with the evaporative cooling medium in the coolant 40 in the heat transferred guide shell 120, evaporative cooling medium heat absorption back temperature raises, when temperature reached the pairing saturation temperature of internal pressure, evaporative cooling medium began to vaporize and forms the mixture of gas phase and liquid phase.The two-phase fluid of gas phase, liquid-phase mixing is because density is little, constantly rise, in the air inlet pipe on sleeve 30 tops enters into discharge 80 and enter condenser and be condensed and form liquid by collecting pipe 90 after the device condensation, flow in the liquid back pipe 100, and finally get back in the guide shell 120, form the circulation that goes round and begins again.
For the coil that adopts cast, pressure injection, dipping or injection molding technology processing, can be between guide shell 120 and the coil by cast, pressure injection, flood or be injection molded into one, for the coil that does not adopt cast, pressure injection, dipping or injection molding technology processing, can be fastenedly connected by securing member between guide shell 120 and the coil.
The present invention utilizes the evaporative cooling medium in the guide shell 120 that heat is taken away, and has reduced the use amount of evaporative cooling medium widely, thereby has reduced the cost of vapour-cooled transformer, has improved the economy of evaporative cooling medium.
Claims (3)
1, a kind of vapour-cooled transformer, comprise iron core [10], low-voltage coil [20], high-tension coil [30], lead-in wire [50] and the evaporative cooling system of forming by air inlet pipe [70], discharge [80], collecting pipe [90], liquid back pipe [100], condenser [60], a hollow guide shell [120] is placed in the inboard that it is characterized in that the low-voltage coil [20] at this transformer, between low-voltage coil [20] and the high-tension coil [30], high-tension coil 30 outsides also place a hollow guide shell [120] respectively, put into coolant [40] in the guide shell [120]; The top of guide shell [120] is connected with upper conduit [140] bottom, upper conduit [140] top links to each other with air inlet pipe [70] bottom, air inlet pipe [70] top links to each other with discharge [80] bottom, discharge [80] top links to each other with condenser [60], condenser [60] bottom links to each other with collecting pipe [90] top, collecting pipe [90] bottom links to each other with the liquid back pipe [100] of downcomer [150] bottom, the top of downcomer [150] links to each other with guide shell [120] bottom, support [110] supports condenser [60], and stay [130] supports guide shell [120].
2, according to the said vapour-cooled transformer of claim 1, it is characterized in that coolant [40] can be single evaporative cooling medium, or the blending agent of two or more evaporative cooling medium, also can be one or more the evaporative cooling medium and the blending agent of other liquid mediums, the consumption principle of blending agent is: the evaporative cooling medium consumption is 0.5～100% of whole medium volumes, and the consumption of other liquid is 99.5～0% of whole medium volumes.
3,, it is characterized in that upper conduit [140] can also link to each other with liquid back pipe [100] with air inlet pipe [70] by other connecting tubes respectively with downcomer [150] according to the said vapour-cooled transformer of claim 1; Air inlet pipe [70] and liquid back pipe [100] can be many, can interconnect between many, also can not be communicated with; Many air inlet pipe [70] and liquid back pipe [100] both can be arranged in a side of transformer, also can come the both sides of transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510086889 CN1794379A (en) | 2005-11-17 | 2005-11-17 | Evaporation cooling transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510086889 CN1794379A (en) | 2005-11-17 | 2005-11-17 | Evaporation cooling transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1794379A true CN1794379A (en) | 2006-06-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510086889 Pending CN1794379A (en) | 2005-11-17 | 2005-11-17 | Evaporation cooling transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1794379A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101409139B (en) * | 2008-08-01 | 2012-07-11 | 中国科学院电工研究所 | Gilled radiator |
| CN102804293A (en) * | 2009-06-05 | 2012-11-28 | Abb技术有限公司 | Transformer coil and transformer having passive cooling |
| CN105448479A (en) * | 2015-12-28 | 2016-03-30 | 人民电器集团江苏斯诺成套设备工程有限公司 | Cooling mechanism of energy-saving type power transformer |
| CN105489350A (en) * | 2016-01-21 | 2016-04-13 | 南通市海王电气有限公司 | Transformer radiator |
-
2005
- 2005-11-17 CN CN 200510086889 patent/CN1794379A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101409139B (en) * | 2008-08-01 | 2012-07-11 | 中国科学院电工研究所 | Gilled radiator |
| CN102804293A (en) * | 2009-06-05 | 2012-11-28 | Abb技术有限公司 | Transformer coil and transformer having passive cooling |
| CN102804293B (en) * | 2009-06-05 | 2017-03-01 | Abb技术有限公司 | Transformer coil with passive cooling and transformator |
| CN105448479A (en) * | 2015-12-28 | 2016-03-30 | 人民电器集团江苏斯诺成套设备工程有限公司 | Cooling mechanism of energy-saving type power transformer |
| CN105489350A (en) * | 2016-01-21 | 2016-04-13 | 南通市海王电气有限公司 | Transformer radiator |
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