CN103714947B - A kind of concatenation type transformer cooler - Google Patents
A kind of concatenation type transformer cooler Download PDFInfo
- Publication number
- CN103714947B CN103714947B CN201310719003.6A CN201310719003A CN103714947B CN 103714947 B CN103714947 B CN 103714947B CN 201310719003 A CN201310719003 A CN 201310719003A CN 103714947 B CN103714947 B CN 103714947B
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- end cover
- casing
- bottom end
- heat exchanger
- exchanger tube
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Abstract
A kind of concatenation type transformer cooler, casing is rectangle, the heat of hollow is changed pipe and through 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, the space of a closing is had between upper end cover plate and casing, bottom end cover is fixedly connected on casing lower baffle plate, the space of a closing is had between bottom end cover and casing, the drive end bearing bracket of air outlet and the rear end cap of air inlet it is provided with in casing both sides, 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, upper end cover, bottom end cover adopts waveform configuration, when heat exchanger tube is odd column, water inlet pipe is set on the left of bottom end cover, outlet pipe is set on the right side of upper end cover；When heat exchanger tube is even column, arranging water inlet pipe on the left of bottom end cover, arrange outlet pipe on the right side of bottom end cover, upper end cover is not provided with water inlet pipe and water outlet pipe, the present invention can improve the overall heat exchange effect of cooler.
Description
Technical field:
The present invention relates to power transformer field, be specifically related to the chiller of power transformer, be particularly well-suited to force the power transformer of oil circulation wind water-cooled.
Background technology
When power transformer runs, winding and heat produced by the loss in iron core must dissipate away in time, so as not to overheated and cause insulation damages.Forced oil-circulation cooling (forced guidance oil circulation air-cooled or water-cooled) is generally adopted for large-capacity power transformator, is sent to external cooler by heat transformer oil oil pump, by quenching or be water-cooled.
In prior art, the external cooler of forced oil circulation water-cooling transformator but is generally adopted tubular heat exchanger, its heat exchanger tube adopts parallel way, as shown in Figure 1, cooling water flows into heat exchanger tube after directly tapping from heat exchanger one end, heat exchange is carried out by heat exchange tube wall and air, cooling water temperature is made to reduce, 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, all heat exchanger tubes cool down flowing to of water identical, and flow into heat exchanger tube with identical temperature, and after outflow heat exchanger tube, directly it is drawn out of heat exchanger, and cooling medium and air are after air inlet entrance heat exchanger, in air outlet flow process, heat because of the transmission of absorption heat-exchange pipe, temperature gradually rises, causing cooling down water in air inlet side maximum with Air Temperature Difference, heat transfer effect is best, along with air flows to air outlet, cooling water is more and more little with the temperature difference of air, and heat transfer effect is more and more poor.Because the cooling water of tubular heat exchanger of prior art is gradually reduced from air inlet to air outlet with the temperature difference of air, heat exchanger overall temperature difference is unbalanced, not only cause that the overall heat transfer effect of heat exchanger is poor, and because of the flexible inequality of each several part heat exchanger tube, easily cause heat exchanger tube vibration to cause that heat exchanger running noises increases.
Summary of the invention:
The invention aims to the cooler providing a kind of temperature difference that can make between air and cooling water to keep in balance, improving the cooling effect of transformator, thus improving the overall heat exchange effect of heat exchanger, reducing the operation energy consumption of transformator.
A kind of concatenation type cooler of the present invention, including fan, drive end bearing bracket, upper end cover, casing, rear end cap, bottom end cover, heat exchanger tube, casing is rectangle, the heat exchanger tube 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, the space of a closing is had between upper end cover plate and casing, bottom end cover is fixedly connected on casing lower baffle plate, the space of a closing is had between bottom end cover and casing, the drive end bearing bracket of air outlet and the rear end cap of air inlet it is provided with in casing both sides, drive end bearing bracket is connected with casing by box flange, rear end cap is connected with casing by box flange, fan is arranged in the airduct on drive end bearing bracket, it is characterized in that, upper end cover, bottom end cover adopts waveform configuration.
When heat exchanger tube is odd column, water inlet pipe is set on the left of bottom end cover, outlet pipe is set on the right side of upper end cover；When heat exchanger tube is even column, water inlet pipe is set on the left of bottom end cover, outlet pipe is set on the right side of bottom end cover, upper end cover is not provided with water inlet pipe and water outlet pipe.
The upper end cover of the present invention and bottom end cover are waveform configuration, monoblock type can be adopted to 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, processing technology is simple, during work, current enter heat exchanger from the heat exchanger tube near air outlet, flow out from the heat exchanger tube of air inlet side, in air outlet side, cooling water temperature is minimum, air themperature is the highest, and it is the highest at air inlet side cooling water temperature, air themperature is minimum, therefore can keep making cooling water close with the temperature difference of air on whole cross section, thus improving 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 monoblock 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. drive end bearing bracket 4. box flange 5. upper end cover 6. water inlet pipe 7. cools down current 8. casing 9. rear end cap 10. bottom end cover 11. heat exchanger tube 12. outlet pipe
Detailed description of the invention
For illustrating details and the detailed description of the invention of a kind of concatenation type cooler of the present invention, it is described further below in conjunction with attached body:
A kind of concatenation type cooler of the present invention, including fan 0, drive end bearing bracket 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 heat exchanger tube 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, the space of a closing is had between upper end cover plate and casing, bottom end cover 10 is fixedly connected on casing 8 lower baffle plate, the space of a closing is had between bottom end cover 10 and casing 8, the drive end bearing bracket 3 of air outlet and the rear end cap 9 of air inlet it is provided with in casing 8 both sides, drive end bearing bracket 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 drive end bearing bracket 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, water inlet pipe 6 is set in the left side of bottom end cover 10, outlet pipe 12 is set on the right side of upper end cover 5；As shown in Figure 3.When heat exchanger tube 11 is even column, arranging water inlet pipe 6 in the left side of bottom end cover 10, the right side of bottom end cover 10 arranges outlet pipe 12, upper end cover 5 is not provided with water inlet pipe and water outlet pipe, as shown in Figure 2.
Upper end cover 5 and the bottom end cover 10 of the present invention are waveform configuration, monoblock type can be adopted to adopt split type, and shown in the upper and lower figure of monoblock type upper end cover and bottom end cover such as Fig. 4, split type upper end cover 5, bottom end cover 10 are respectively as shown in upper figure below of Fig. 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 transformator with the turnover oil pipe of transformator respectively is connected suitable in water-cooling pattern；
2, starting fan 0, cold air enters cooler from the air inlet of rear end cap 9, flows from right to left, flow out cooler by the airduct 2 on drive end bearing bracket 3 under the swabbing action of fan 0；
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, next column heat exchanger tube is flowed in arc-shaped cavity on the end cap of water inlet pipe 6 offside, then in the end cap arc-shaped cavity of this side of water inlet pipe 6, enter next column heat exchanger tube again, successively by column by heat exchanger tube 11, until flowing out cooler to water outlet pipe part；
4, air 1 is contacted with heat exchanger tube 11 by column by heat exchanger, the coolant water of absorption heat-exchange pipe 11 transmission or the heat of oil, and temperature gradually rises；
5, coolant water or oil flow from water inlet pipe 6 to outlet pipe 12, and temperature lowers gradually.
Minimum in air inlet coolant temperature, but air themperature is also low；In air outlet side, coolant temperature is the highest, but the temperature of air is also high, therefore air and the temperature difference relative equilibrium of coolant, make the heat transfer effect that the maintenance of cooler each row heat exchanger tube is close, and therefore the overall heat exchange effect of cooler is detailed compared with parallel cooler improves.
Claims (6)
1. a concatenation type cooler, including fan (0), drive end bearing bracket (3), upper end cover (5), casing (8), rear end cap (9), bottom end cover (10), heat exchanger tube (11), casing (8) is rectangle, the heat exchanger tube (11) of hollow passes two end-stopping plates up and down of casing (8) and is fixed on baffle plate, the connected mode of two end-stopping plates up and down of heat exchanger tube (11) and casing (8) adopts expanded joint mode, upper end cover (5) is fixedly connected on casing (8) overhead gage, the space of a closing is had between upper end cover and casing, bottom end cover (10) is fixedly connected on casing (8) lower baffle plate, the space of a closing is had between bottom end cover (10) and casing (8), the drive end bearing bracket (3) of air outlet and the rear end cap (9) of air inlet it is provided with in casing (8) both sides, drive end bearing bracket (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 drive end bearing bracket (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, outlet pipe (12) is set.
2. a concatenation type cooler, by fan (0), drive end bearing bracket (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 heat exchanger tube (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, the space of a closing is had between upper end cover and casing, bottom end cover (10) is fixedly connected on casing (8) lower baffle plate, the space of a closing is had between bottom end cover (10) and casing (8), the drive end bearing bracket (3) of air outlet and the rear end cap (9) of air inlet it is provided with in casing (8) both sides, drive end bearing bracket (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 drive end bearing bracket (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 arranges outlet pipe (12), upper end cover (5) is not provided with water inlet pipe (6), outlet pipe (12).
3. concatenation type cooler according to claim 1 and 2, it is characterised in that when upper end cover (5) and bottom end cover (10) waveform number are more than 1, be an overall structure.
4. concatenation type cooler according to claim 1 and 2, it is characterised in that when upper end cover (5) and bottom end cover (10) waveform number are more than 1, for multiple component combined structures.
5. concatenation type cooler according to claim 1 and 2, it is characterised in that upper end cover (5), bottom end cover (10) are that bolt is connected with casing (8) connected mode.
6. concatenation type cooler according to claim 1 and 2, it is characterised in that, upper end cover (5), bottom end cover (10) adopt 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 CN103714947A (en) | 2014-04-09 |
| CN103714947B true CN103714947B (en) | 2016-06-29 |
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| 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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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201161B (en) * | 2014-08-22 | 2017-07-28 | 南京南瑞继保电气有限公司 | A kind of converter valve components 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 |
| 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 |
| CN112349487B (en) * | 2020-11-09 | 2022-11-15 | 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 |
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| Publication number | Publication date |
|---|---|
| CN103714947A (en) | 2014-04-09 |
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