CN103714947A - Series-connection type transformer cooler - Google Patents
Series-connection type transformer cooler Download PDFInfo
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- CN103714947A CN103714947A CN201310719003.6A CN201310719003A CN103714947A CN 103714947 A CN103714947 A CN 103714947A CN 201310719003 A CN201310719003 A CN 201310719003A CN 103714947 A CN103714947 A CN 103714947A
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- end cover
- casing
- bottom end
- heat exchanger
- box body
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Abstract
The invention provides a series-connection type transformer cooler. A box body is in a rectangular shape, hollow heat exchange pipes penetrate through baffles at the upper end and the lower end of the box body and fixed to the baffles, an upper end cover is fixedly connected to the upper baffle of the box body, a closed space is formed between the upper cover plate and the box body, a lower end cover is fixedly connected to the lower baffle of the box body, a closed space is formed between the lower end cover and the box body, a front end cover and a rear end cover are arranged on the two sides of the box body, the front end cover is provided with an air outlet, and the rear end cover is provided with an air inlet. A front cover plate is connected with the box body through a box body flange, the rear end cover is connected with the box body through a box body flange, fans are arranged in air pipes on the front cover plate, and the upper end cover and the lower end cover are of a waveform structure. When the number of the lines of the heat exchange pipes is an odd number, a water outlet pipe is arranged on the left side of the lower end cover, and a water outlet pipe is arranged on the right side of the upper end cover. When the number of the lines of the heat exchange pipes is an even number, a water inlet pipe is arranged on the left side of the lower end cover, a water outlet pipe is arranged on the right side of the lower end cover, and neither the water inlet pipe nor the water outlet pipe is arranged on the upper end cover. According to the series-connection type transformer cooler, the overall heat exchange effect of the cooler can be improved.
Description
Technical field:
The present invention relates to power transformer field, be specifically related to the cooling device of power transformer, be specially adapted to force the power transformer of oily circulation wind water-cooled.
Background technology
In power transformer when operation,, the heat that the loss in winding and iron core produces dissipation is in time gone out, in order to avoid overheated and cause insulation damages.For large-capacity power transformer, conventionally adopt forced oil-circulation cooling (forced guidance oil circulating air cooling or water-cooled), be about to heat transformer oil and be sent to external cooler with oil pump, by quenching or use water cooling.
In prior art, the external cooler of forced oil circulation water-cooling transformer but generally adopts tubular heat exchanger, its heat exchanger tube adopts parallel way, as shown in Figure 1, cooling water directly flows into heat exchanger tube from the shunting of heat exchanger one end, by heat exchange tube wall and air, carry out heat exchange, cooling water temperature is reduced, then outflow heat exchanger after the other end of heat exchanger collects.Because the heat exchanger tube of the tubular heat exchanger of prior art adopts parallel way, in all heat exchanger tubes cooling water flow to identical, and flow into heat exchanger tube with uniform temp, and after outflow heat exchanger tube, be directly drawn out of heat exchanger, and coolant is that air is from air inlet enters heat exchanger, in air outlet flow process, heat because of the transmission of absorption heat-exchange pipe, temperature raises gradually, cause in air inlet side cooling water and Air Temperature Difference maximum, heat transfer effect is best, along with air flows to air outlet, the temperature difference of cooling water and air is more and more little, and heat transfer effect is more and more poor.Because the cooling water of tubular heat exchanger and the temperature difference of air of prior art reduces gradually from air inlet to air outlet, heat exchanger overall temperature difference is unbalanced, not only cause the overall heat transfer effect of heat exchanger poor, and flexible uneven because of each several part heat exchanger tube, easily cause that heat exchanger tube vibration causes heat exchanger running noises to increase.
Summary of the invention:
The object of the invention is to provide a kind of cooler that can make the temperature difference between air and cooling water keep in balance, improve the cooling effect of transformer, thereby improve the overall heat exchange effect of heat exchanger, reduce the operation energy consumption of transformer.
A kind of concatenation type cooler of the present invention, comprise fan, front end housing, upper end cover, casing, rear end cap, bottom end cover, heat exchanger tube, casing is rectangle, the hot replace tubes of hollow passes two end-stopping plates up and down of casing and is fixed on baffle plate, upper end cover is fixedly connected on casing overhead gage, between upper end cover plate and casing, there is the space of a sealing, bottom end cover is fixedly connected on casing lower baffle plate, between bottom end cover and casing, there is the space of a sealing, in casing both sides, be provided with the front end housing of air outlet and the rear end cap of air inlet, front shroud is connected with casing by box flange, rear end cap is connected with casing by box flange, fan is arranged in the airduct on front shroud, it is characterized in that, upper end cover, bottom end cover adopts waveform configuration.
When heat exchanger tube is odd column, in bottom end cover left side, water inlet pipe is set, on upper end cover right side, set out water pipe; When heat exchanger tube is even column, in bottom end cover left side, water inlet pipe is set, bottom end cover right side sets out water pipe, and water inlet pipe and water outlet pipe is not set on upper end cover.
Upper end cover of the present invention and bottom end cover are waveform configuration, can adopt integral type also can adopt split type.
Upper end cover, bottom end cover are that bolt is connected with casing connected mode.
The upper end cover of concatenation type transformer cooler, bottom end cover adopt punching press or welding manner to make.
Beneficial effect: described a kind of concatenation type cooler, heat exchanger tube adopts conventional expanded joint mode to be connected with casing, upper end cover or bottom end cover adopt punching press or welding manner to make, manufacture craft is simple, during work, current enter heat exchanger from the heat exchanger tube near air outlet, from the heat exchanger tube of air inlet side, flow out, minimum at air outlet side cooling water temperature, air themperature is the highest, and it is the highest at air inlet side cooling water temperature, air themperature is minimum, therefore can on whole cross section, keep making the temperature difference of cooling water and air to approach, thereby improves the overall heat exchange effect of cooler.
Accompanying drawing explanation
The conventional parallel cooler construction figure of Fig. 1
Fig. 2 heat exchanger tube is the concatenation type cooler construction figure of even column
Fig. 3 heat exchanger tube is the concatenation type cooler construction figure of odd column
The upper and lower end cap of Fig. 4 integral type
The split type upper and lower end cap of Fig. 5
Number in the figure title: 0. fan 1. air stream 2. airduct 3. front end housing 4. box flange 5. upper end cover 6. water inlet pipe 7. cooling water flow 8. casing 9. rear end cap 10. bottom end cover 11. heat exchanger tube 12. outlet pipes
Embodiment
For illustrating details and the embodiment of a kind of concatenation type cooler of the present invention, below in conjunction with attached body, be described further:
A kind of concatenation type cooler of the present invention, comprise fan 0, front end housing 3, upper end cover 5, casing 8, rear end cap 9, bottom end cover 10, heat exchanger tube 11 forms, casing 8 is rectangle, the hot replace tubes 11 of hollow passes two end-stopping plates up and down of casing 8 and is fixed on baffle plate, connected mode adopts expanded joint mode, upper end cover 5 is fixedly connected on casing 8 overhead gages, between upper end cover plate and casing, there is the space of a sealing, bottom end cover 10 is fixedly connected on casing 8 lower baffle plates, the space that has a sealing between bottom end cover 10 and casing 8, in casing 8 both sides, be provided with the front end housing 3 of air outlet and the rear end cap 9 of air inlet, front shroud 3 is connected with casing 8 by box flange 4, rear end cap 9 is connected with casing 8 by box flange 4, fan 0 is arranged in the airduct 2 on front shroud 3, it is characterized in that, upper end cover 5, bottom end cover 10 adopts waveform configuration.
When heat exchanger tube 11 is odd column, in the left side of bottom end cover 10, water inlet pipe 6 is set, on the right side of upper end cover 5, set out water pipe 12; As shown in Figure 3.When heat exchanger tube 11 is even column, in the left side of bottom end cover 10, water inlet pipe 6 is set, the right side of bottom end cover 10 sets out water pipe 12, water inlet pipe and water outlet pipe is not set, as shown in Figure 2 on upper end cover 5.
A kind of concatenation type cooler of the present invention, specific works flow process is as follows:
1, the water inlet pipe and water outlet pipe that the water inlet pipe 6 of cooler, outlet pipe 12 are applicable to oil cooling mode or transformer with the turnover oil pipe of transformer is respectively applicable to water-cooling pattern and is connected;
2, start fan 0, cold air enters cooler from the air inlet of rear end cap 9, under the swabbing action of fan 0, flows from right to left, by the airduct 2 on front end housing 3, flows out cooler;
3, transformer oil oil cooling mode or cooling water water-cooling pattern enter the heat exchanger tube 11 of cooler by water inlet pipe 6, in arc-shaped cavity on the end cap of water inlet pipe 6 offsides, flow into next column heat exchanger tube, and then enter next column heat exchanger tube in the end cap arc-shaped cavity of water inlet pipe 6 these sides, successively by column by heat exchanger tube 11, until flow out cooler to outlet pipe place;
4, air 1 contacts with heat exchanger tube 11 by column by heat exchanger, the cooling fluid water that absorption heat-exchange pipe 11 transmits or the heat of oil, and temperature raises gradually;
5, cooling fluid water or oil flow to outlet pipe 12 from water inlet pipe 6, and temperature lowers gradually.
At air inlet place, coolant temperature is minimum, but air themperature is also low; The highest in air outlet side coolant temperature, but the temperature of air is also high, therefore the temperature difference relative equilibrium of air and cooling fluid, makes each row heat exchanger tube of cooler keep close heat transfer effect, so the overall heat exchange effect of cooler is compared detailed raising with parallel cooler.
Claims (7)
1. a concatenation type transformer cooler, comprise fan (0), front end housing (3), upper end cover (5), casing (8), rear end cap (9), bottom end cover (10), heat exchanger tube (11), casing (8) is rectangle, the hot replace tubes (11) of hollow passes two end-stopping plates up and down of casing (8) and is fixed on baffle plate, connected mode adopts expanded joint mode, upper end cover (5) is fixedly connected on casing (8) overhead gage, between upper end cover plate and casing, there is the space of a sealing, bottom end cover (10) is fixedly connected on casing (8) lower baffle plate, the space that has a sealing between bottom end cover (10) and casing (8), in casing (8) both sides, be provided with the front end housing (3) of air outlet and the rear end cap (9) of air inlet, front shroud (3) is connected with casing (8) by box flange (4), rear end cap (9) is connected with casing (8) by box flange (4), fan (0) is arranged in the airduct (2) on front shroud (3), it is characterized in that, upper end cover (5), bottom end cover (10) adopts waveform configuration, heat exchanger tube (11) columns is odd column, in bottom end cover (10) left side, water inlet pipe (6) is set, on upper end cover (5) right side, set out water pipe (12).
2. a concatenation type cooler, by fan (0), front end housing (3), upper end cover (5), casing (8), rear end cap (9), bottom end cover (10), heat exchanger tube (11) forms, casing (8) is rectangle, the hot replace tubes (11) of hollow passes two end-stopping plates up and down of casing (8) and is fixed on baffle plate, upper end cover (5) is fixedly connected on casing (8) overhead gage, between upper end cover plate and casing, there is the space of a sealing, bottom end cover (10) is fixedly connected on casing (8) lower baffle plate, the space that has a sealing between bottom end cover (10) and casing (8), in casing (8) both sides, be provided with the front end housing (3) of opening and the rear end cap (9) of opening, front shroud (3) is connected with casing (8) by box flange (4), rear end cap (9) is connected with casing (8) by box flange (4), fan (0) is arranged in the airduct (2) on front shroud (3), it is characterized in that, upper end cover (5), bottom end cover (10) adopts waveform configuration, heat exchanger tube (11) columns is even column, in bottom end cover (10) left side, water inlet pipe (6) is set, bottom end cover (10) right side sets out water pipe (12), water inlet pipe (6) is not set on upper end cover (5), outlet pipe (12).
3. concatenation type transformer cooler according to claim 1 and 2, is characterized in that upper end cover (5) and bottom end cover (10) are waveform configuration.
4. concatenation type transformer cooler according to claim 3, is characterized in that upper end cover (5) and bottom end cover (10) waveform number are greater than at 1 o'clock, is an overall structure.
5. concatenation type transformer cooler according to claim 3, is characterized in that upper end cover (5) and bottom end cover (10) waveform number are greater than at 1 o'clock, is a plurality of component combined structures.
6. concatenation type transformer cooler according to claim 1 and 2, is characterized in that upper end cover (5), bottom end cover (10) are that bolt is connected with casing (8) connected mode.
7. the upper end cover of concatenation type transformer cooler (5), bottom end cover (10) manufacture method in claim 1 to 6, is characterized in that adopting punching press or welding manner to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310719003.6A CN103714947B (en) | 2013-12-23 | 2013-12-23 | A kind of concatenation type transformer cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310719003.6A CN103714947B (en) | 2013-12-23 | 2013-12-23 | A kind of concatenation type transformer cooler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103714947A true CN103714947A (en) | 2014-04-09 |
| CN103714947B CN103714947B (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310719003.6A Expired - Fee Related CN103714947B (en) | 2013-12-23 | 2013-12-23 | A kind of concatenation type transformer cooler |
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| Country | Link |
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| CN (1) | CN103714947B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105280345A (en) * | 2015-10-16 | 2016-01-27 | 苏州腾冉电气设备股份有限公司 | Water-cooling electric reactor cooling plate capable of charging and discharging water at two ends |
| WO2016026469A1 (en) * | 2014-08-22 | 2016-02-25 | 南京南瑞继保电气有限公司 | Converter valve assembly cooling system |
| CN106356181A (en) * | 2016-08-31 | 2017-01-25 | 江西华强金源电气有限公司 | Power transformer |
| CN110211771A (en) * | 2019-07-05 | 2019-09-06 | 中车大连机车研究所有限公司 | A kind of power transmission and transformation transformer air cooler and its control method |
| CN112349487A (en) * | 2020-11-09 | 2021-02-09 | 保定保菱变压器有限公司 | Noise reduction structure and method of air cooler for transformer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043819A (en) * | 1988-12-22 | 1990-07-11 | 湖南省东江水力发电厂 | Enclosed dual-expansion mounth oil-water cooler |
| JPH07283034A (en) * | 1994-04-01 | 1995-10-27 | Tokyo Electric Power Co Inc:The | Cooler and cooling method for transformer |
| CN2594942Y (en) * | 2002-12-19 | 2003-12-24 | 谷波 | Cooler of large power transformer |
| CN201918244U (en) * | 2010-11-26 | 2011-08-03 | 上海意兰可电力电子设备有限公司 | Multiloop heat exchanger |
-
2013
- 2013-12-23 CN CN201310719003.6A patent/CN103714947B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043819A (en) * | 1988-12-22 | 1990-07-11 | 湖南省东江水力发电厂 | Enclosed dual-expansion mounth oil-water cooler |
| JPH07283034A (en) * | 1994-04-01 | 1995-10-27 | Tokyo Electric Power Co Inc:The | Cooler and cooling method for transformer |
| CN2594942Y (en) * | 2002-12-19 | 2003-12-24 | 谷波 | Cooler of large power transformer |
| CN201918244U (en) * | 2010-11-26 | 2011-08-03 | 上海意兰可电力电子设备有限公司 | Multiloop heat exchanger |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016026469A1 (en) * | 2014-08-22 | 2016-02-25 | 南京南瑞继保电气有限公司 | Converter valve assembly cooling system |
| CN105280345A (en) * | 2015-10-16 | 2016-01-27 | 苏州腾冉电气设备股份有限公司 | Water-cooling electric reactor cooling plate capable of charging and discharging water at two ends |
| CN106356181A (en) * | 2016-08-31 | 2017-01-25 | 江西华强金源电气有限公司 | Power transformer |
| CN106356181B (en) * | 2016-08-31 | 2018-09-21 | 江西华强金源电气有限公司 | A kind of power transformer |
| CN110211771A (en) * | 2019-07-05 | 2019-09-06 | 中车大连机车研究所有限公司 | A kind of power transmission and transformation transformer air cooler and its control method |
| CN112349487A (en) * | 2020-11-09 | 2021-02-09 | 保定保菱变压器有限公司 | Noise reduction structure and method of air cooler for transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103714947B (en) | 2016-06-29 |
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Granted publication date: 20160629 Termination date: 20161223 |
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| CF01 | Termination of patent right due to non-payment of annual fee |