CN2376056Y - Deflector-type inner-cooled radiator specially adapted for oil-immersed type transformer - Google Patents
Deflector-type inner-cooled radiator specially adapted for oil-immersed type transformer Download PDFInfo
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- CN2376056Y CN2376056Y CN 99234303 CN99234303U CN2376056Y CN 2376056 Y CN2376056 Y CN 2376056Y CN 99234303 CN99234303 CN 99234303 CN 99234303 U CN99234303 U CN 99234303U CN 2376056 Y CN2376056 Y CN 2376056Y
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- radiating tube
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Abstract
The utility model belongs to a radiator of an oil-immersed type transformer, particularly a special flow guide inner-cooling type radiator for oil-immersed type transformers. The utility model comprises a transformer, an oil tank and a radiator. The utility model is characterized in that an inner-cooling type radiating pipe is fixed in the oil tank of the transformer, the outer wall of the inner-cooling type radiating pipe is in contact with the oil tank of the transformer, and the inner wall of the inner-cooling type radiating pipe is in contact with flowing radiating media. The inner-cooling type radiating pipe fixed in the oil tank of the transformer can be composed of a plurality of radiating pipes which are not mutually communicated. The utility model has the advantages of high radiating efficiency, small size, simple production process and low production cost.
Description
The utility model belongs to the radiator in the oil-filled transformer, particularly about the special-purpose water conservancy diversion inner-cooled of a kind of oil-immersed type transformer radiator.
Original oil-filled transformer, the loss of himself all changes heat energy into, and pyrotoxin is winding and iron core.Because the device of oil-immersed type transformer is fixedly mounted in the metal cabinet that is full of transformer oil as thermal source, thermal source heats convection current in casing with transformer oil, and with the heat transferred casing, by box outer surface heat is dispersed in the atmosphere.The continuous generation of heat, transmit, distribute scape and eventually reach a dynamic balance its temperature rise is stabilized in the scope of certain permission.In order to increase heat radiation, it is not enough only depending on the transformer tank surface, also must install other heat dissipation element additional, to strengthen radiating effect.Popular radiator has tubular radiator, gilled radiator and corrugated tank, various radiators such as Fig. 1, Fig. 2, shown in Figure 3 at present.But tubular type, gilled radiator overall dimension are big, have increased volume.Adopting corrugated tank, is comparatively advanced radiating mode, but the production cost height, investment of production equipment is big.
The purpose of this utility model: be exactly that to design a kind of overall dimension less, good heat dissipation effect, production technology is simple, the special-purpose water conservancy diversion inner-cooled of the oil-immersed type transformer radiator that production cost is low.
Design of the present utility model is: the special-purpose water conservancy diversion inner-cooled of a kind of oil-immersed type transformer radiator, it comprises, fuel tank, heat dissipation element, transformer oil, it is characterized in that: the inner-cooled radiating tube is arranged at the oil tank of transformer internal fixation, the outer wall of radiating tube contacts with transformer oil, and the inwall of inner-cooled radiating tube contacts with the heat radiation medium that flow.
The mobile heat radiation medium of inner-cooled radiating tube inwall contact can be the air that is connected with atmosphere; It also can be high pressure cold; It can also be refrigerant liquid; The turnover mouth of pipe of its inner-cooled radiating tube can directly be communicated with atmosphere; Circulation high pressure cold or refrigerant liquid also can be connected with kind of refrigeration cycle mechanism.On the outer wall of fuel tank, be fixedly connected with the outer radiating tube that many two ends are communicated with atmosphere.The inner-cooled radiating tube of oil tank of transformer internal fixation more than two, is not communicated with between the radiating tube mutually.The turnover mouth of pipe of the inner-cooled radiating tube of oil tank of transformer internal fixation is parallel to each other.Being fixed on the inner-cooled radiating tube in the fuel tank, can be straight tube, also can be helix tube, and its cross section can be the garden; It also can be ellipse garden; It can also be rectangle.
The utility model and the contrast of original technology are as follows:
Original tubular type, gilled radiator and surrounding environment heat exchange have two kinds of forms, radiation and cross-ventilations.The radiating effect key is air the arranging between each heat-sink unit in the speed of spreader surface and the radiator thereof of flowing through, present radiator, the air velocity of radiating surface of flowing through is lower, because close together between each heat-sink unit of consideration of size all influences radiating effect.And overall dimension is big, has increased the volume of transformer.
Original corrugated tank, need the plate that steel plate is bent into the ripple type shape to be seen that Fig. 3 carries out assembly welding and forms with specialized apparatus, tank surface is increased, and while body oil is heat loss through convection directly, and radiating effect greatly strengthens, make the overall dimensions of transformer simultaneously, also for dwindling, big but the special equipment of corrugated tank is invested, a general cover bellows process equipment also needs import equipment for more than 1,000 ten thousand yuan, secondly this fuel tank only uses for miniature transformer, and the transformer of medium-sized or above capacity can't adopt.
And the water conservancy diversion inner-cooled radiator of the utility model design utilizes the forced convertion principle of inner or outside radiating tube, and the flow through speed of radiating surface of cooling air is increased, and improves radiating efficiency greatly.Each heat-sink unit of traditional heat-dissipating device: the distance between pipe or the sheet is less, according to the distribution in temperature field, and the phase mutual interference, impact effect, each cooling airway of interior cold heat sink does not connect mutually, is independent of each other, and increases thermal conductive surface.Because transformer oil is a coolant, traditional heat-dissipating device and transformer body are to be attached thereto by pipeline to connect, thermal conductive surface is little, and radiating tube of the present utility model surface directly contacts with body oil, increased thermal conductive surface, radiating efficiency can improve 30%, volume-diminished than traditional heat-dissipating device under with the prerequisite of radiating surface.
Below in conjunction with the embodiment accompanying drawing, the utility model is described further.
Accompanying drawing 1 is former tubular radiator structural representation
Accompanying drawing 2 is former tubular radiator A-A direction cut-away view
Accompanying drawing 3 is former gilled radiator structural representation
Accompanying drawing 4 is former gilled radiator B-B direction cut-away view
Accompanying drawing 5 is former corrugated tank structural representation
Accompanying drawing 6 is former corrugated tank C-C direction cut-away view
Accompanying drawing 7 is the utility model embodiment inner-cooled heat spreader structures schematic diagram
Accompanying drawing 8 is the utility model embodiment inner-cooled radiator D-D direction cut-away view
Among the figure: 1. transformer; 2. inner-cooled radiating tube; 3. transformer oil; 4. oil tank of transformer; 5. corrugated tank;
6. fin; 7. iron core; 8. outer radiating tube.
As shown in the figure, the inner-cooled radiator among the utility model embodiment is dispelled the heat by interior cold radiating tube 2 and outer radiating tube 8.Radiating tube can be used in combination or adopt separately interior radiating tube by inside and outside radiating tube according to the transformer of different capabilities.The cross section of its radiating tube can be the straight tube of circular or other shapes.For reinforced effects, also can adopt spiral type pipe.The outer surface of interior radiating tube 2 directly contacts with transformer oil 3, and inner surface contacts with air.Because the temperature of the upper and lower of radiating tube is different, inner air tube risings of being heated, temperature is high more, and the air rate of climb is fast more, and it is good more to dispel the heat, and the while, each radiating tube formed independently air flue, had overcome the interference between tubular type or the chip heat dissipation element.Radiating tube is contained in the casing and the direct heat convection of oil, and its radiating efficiency greatly strengthens.In order further to improve radiating effect, also can give logical circulation pressurization cold air in the radiating tube, improve flow velocity.Perhaps, so also just constituted the radiator of air-cooled efficiently or water-cooled by with recirculated water.Outside radiating tube 8 can be processed into the flat tube shape, and directly assembly welding constitutes the gas channel of independent sealing at box outer surface, make the flow velocity of air increase, and the outer surface heat radiation does not influence.The plate that this radiator can be processed into various different sizes carries out assembly welding, and its overall dimension is little, intensity good, radiating efficiency is high, and can adapt to the oil-filled transformer employing of various capacity.
With S7-315 kilovolt-ampere of transformer is example, adopts former tubular radiator, and volume is: high by 0.924 * long 1.608 * wide 0.998=1.468m
3, and adopting the utility model inner-cooled radiator of same power, volume is: high by 0.924 * long 1.230 * wide 0.81=0.92m
3, the heat efficiency improves 30%.
Claims (6)
1, the special-purpose water conservancy diversion inner-cooled of a kind of oil-immersed type transformer radiator, it comprises, fuel tank, heat radiation do not have part, transformer oil, it is characterized in that: the inner-cooled radiating tube is arranged at the oil tank of transformer internal fixation, the outer wall of radiating tube contacts with transformer oil, and the inwall of inner-cooled radiating tube contacts with the heat radiation medium that flow.
2, the special-purpose water conservancy diversion inner-cooled of a kind of oil-immersed type transformer according to claim 1 radiator, its feature also is: the mobile heat radiation medium of inner-cooled radiating tube inwall contact can be the air that is connected with atmosphere; It also can be high pressure cold; It can also be refrigerant liquid; The turnover mouth of pipe of its inner-cooled radiating tube can directly be communicated with atmosphere; Circulation high pressure cold or refrigerant liquid also can be connected with kind of refrigeration cycle mechanism.
3, the special-purpose water conservancy diversion inner-cooled of a kind of oil-immersed type transformer according to claim 1 radiator, its feature also is: be fixedly connected with the outer radiating tube that many two ends are communicated with atmosphere on the outer wall of fuel tank.
4, the special-purpose water conservancy diversion inner-cooled of a kind of oil-immersed type transformer according to claim 1 radiator, its feature also is: the inner-cooled radiating tube of oil tank of transformer internal fixation more than two, is not communicated with between the radiating tube mutually.
5, the special-purpose water conservancy diversion inner-cooled of a kind of oil-immersed type transformer according to claim 4 radiator, its feature also is: the turnover mouth of pipe of the inner-cooled radiating tube of oil tank of transformer internal fixation is parallel to each other.
6, the special-purpose water conservancy diversion inner-cooled of a kind of oil-immersed type transformer according to claim 3 radiator, its feature also is: being fixed on the inner-cooled radiating tube in the fuel tank, can be straight tube, also can be helix tube, and its cross section can be the garden; It also can be ellipse garden; It can also be rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99234303 CN2376056Y (en) | 1999-01-01 | 1999-01-01 | Deflector-type inner-cooled radiator specially adapted for oil-immersed type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99234303 CN2376056Y (en) | 1999-01-01 | 1999-01-01 | Deflector-type inner-cooled radiator specially adapted for oil-immersed type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2376056Y true CN2376056Y (en) | 2000-04-26 |
Family
ID=34022496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99234303 Expired - Fee Related CN2376056Y (en) | 1999-01-01 | 1999-01-01 | Deflector-type inner-cooled radiator specially adapted for oil-immersed type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2376056Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101388275B (en) * | 2008-07-11 | 2011-07-20 | 中国科学院电工研究所 | Transformer heat exchanger adopting evaporation cooling technique |
| CN105374512A (en) * | 2015-12-15 | 2016-03-02 | 济南银河电气有限公司 | Cooling device for immersion type transformer |
-
1999
- 1999-01-01 CN CN 99234303 patent/CN2376056Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101388275B (en) * | 2008-07-11 | 2011-07-20 | 中国科学院电工研究所 | Transformer heat exchanger adopting evaporation cooling technique |
| CN105374512A (en) * | 2015-12-15 | 2016-03-02 | 济南银河电气有限公司 | Cooling device for immersion type transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |