CN105185518A - Transformer cooling plate and production technology thereof - Google Patents
Transformer cooling plate and production technology thereof Download PDFInfo
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- CN105185518A CN105185518A CN201510547034.7A CN201510547034A CN105185518A CN 105185518 A CN105185518 A CN 105185518A CN 201510547034 A CN201510547034 A CN 201510547034A CN 105185518 A CN105185518 A CN 105185518A
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- grease chamber
- fin
- welding gun
- connecting plate
- welded
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- 238000005516 engineering process Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000001816 cooling Methods 0.000 title abstract description 12
- 238000003466 welding Methods 0.000 claims abstract description 113
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 239000004519 grease Substances 0.000 claims description 70
- 238000010438 heat treatment Methods 0.000 claims description 22
- 239000000446 fuel Substances 0.000 claims description 6
- 238000009826 distribution Methods 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 229910052782 aluminium Inorganic materials 0.000 description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 10
- 229910052742 iron Inorganic materials 0.000 description 6
- 230000000630 rising effect Effects 0.000 description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention belongs to the technical field of manufacturing of power transformation and distribution equipment, and particularly relates to a transformer cooling plate. The transformer cooling plate comprises cooling fins and main runner pipes, wherein two ends of each cooling fin are fixedly connected to oil chambers; the oil chambers are simultaneously connected with connection plates; grooves are formed in the oil chambers corresponding to the connection plates; the oil chambers, the connection plates and the main runner pipes are sequentially welded together; and oil leakage holes are correspondingly formed in the middle positions of the connection plates and the main runner pipes. The transformer cooling plate is simple in structure, safe, reliable, good in sealing property and high in cooling speed. The invention further provides a production technology of the transformer cooling plate. The production technology comprises the steps as follows: (1) the connection plates and the oil chambers are welded together; (2) the oil chambers and the cooling fins are welded together; (3) the welded connection plates, oil chambers and cooling fins are sequentially arranged on the main runner pipes; and linear seams between the connection plates and the main runner pipes are welded; and (4) an arc-shaped gap between the connection plates is welded by a rotary welding gun. The technology is convenient and fast; and the produced transformer cooling plate is good in air-tightness and long in service life.
Description
Technical field
The invention belongs to distribution equipment manufacturing technology field, be specifically related to a kind of transformer heating panel and production technology thereof.
Background technology
Power transformer in use, electric current is by one, secondary winding and silicon sheet core carry out electromagnetic conversion, part electric energy will change the heat energy of idle work into, this heat dissipates as early as possible if do not taken measures, adverse effect will be caused to transformer performance and Electrical Safety, the domestic power transformer produced or using at present, radiator be around casing periphery and the iron flat tubular part of linking up with transformer oil phase in casing, because its moulding heat radiation cross section is less, simultaneously again because the conductive coefficient of aluminium is three times of iron, the iron radiator of current power transformer is due to structure and material two aspect shortcoming, cause transformer heat dispersion poor, be unfavorable for saving the energy and playing power equipment running potentiality, simultaneously, Metal Material Science research shows, metallic iron is very easily oxidized, aluminium is then comparatively stable, and smooth aluminium material surface has the characteristic of the middle infrared (Mid-IR) that flashes back the sunlight, and iron rule has the ultrared characteristic of absorption, so be in the power transformer being equipped with iron radiator of outdoor operational environment in summer, also because of daylight factor, and additional heat can be increased, be unfavorable for the heat radiation of equipment.
Application number be 201420575108.9 Chinese patent disclose a kind of novel combination type Aluminium Radiator being applicable to power transformer, comprise aluminum thermal fin, aluminum termination, main flow siphunculus and spacer sleeve, the two ends of aluminum thermal fin connect aluminum termination respectively, aluminum termination is fixed on main flow siphunculus by spacer sleeve, on aluminum termination, spacer sleeve and main flow siphunculus, correspondence is provided with through hole, for the circulation of the oil that dispels the heat, spacer sleeve realizes sealing by sealing ring, after using a period of time, sealing ring is aging, easy generation leakage of oil, affects radiating effect, increases cost.
Summary of the invention
For solving the deficiency in above-mentioned technology, the object of the invention is to: a kind of transformer heating panel is provided, structure is simple, safe and reliable, good airproof performance, radiating rate is fast, and a kind of production technology of transformer heating panel is provided, this technique is convenient and swift, the transformer heating panel good airproof performance of production, long service life.
For solving its technical problem, the technical solution used in the present invention is:
Described transformer heating panel, comprise fin and main flow siphunculus, described fin comprises the vertical passage and radiating fin that are formed by heat sink section bar, vertical passage and radiating fin are structure as a whole, the sealing of described main flow siphunculus one end, the other end is welded and fixed flange, described fin two ends are fixedly connected with grease chamber, grease chamber connects connecting plate simultaneously, the corresponding connecting plate in grease chamber arranges groove, grease chamber, connecting plate and main flow siphunculus weld together in turn, and on connecting plate centre position and main flow siphunculus, correspondence arranges oil leaking hole.
When the present invention uses, mounting flange on main flow siphunculus is connected with the flange of transformer store oil main body connector, and then with connect transformer oil pipe and communicate, transformer conduction oil enters grease chamber by main flow siphunculus and connecting plate oil leaking hole, then flow into fin, fin comprises the vertical passage and radiating fin that are formed by heat sink section bar, and vertical passage and radiating fin are structure as a whole, the preferred aluminium alloy of heat sink section bar, conduction oil heat is discharged fast by fin.
Wherein, preferred version is:
Described connecting plate is set to arc, adapts with main flow siphunculus arcwall face, fits completely after both welding, good airproof performance.
Described main flow siphunculus is provided with fuel outlet valve and vent valve, and fuel outlet valve can discharge conduction oil in fin, and vent valve can discharge the pressed gas accumulated in fin, thus realizes vacuum in oil pipe, ensures the trafficability performance of conduction oil.
Described fin is provided with hoisting ring, conveniently carries out lifting to it and fixes.
The present invention also provides a kind of transformer heating panel production technology, comprises the following steps:
The first step, welds together connecting plate and grease chamber;
Second step, welded together by grease chamber's welding gun in grease chamber and fin, grease chamber's welding gun is fixed by lifting assembly;
3rd step, arranges the connecting plate welded, grease chamber and heat sink assembly in turn and is mounted on main flow siphunculus, each connecting plate linear array, is welded to connect the straight shape edge of plate by seam welding gun;
4th step, circular arc rotary welding gun screws in the space between abutting fins, is welded to connect the arc shaped slits between plate and connecting plate.
Wherein, the described first step is welded to connect the seam between plate and grease chamber, and this step is completed by common welding gun, second step uses a pair grease chamber welding gun simultaneously from top to bottom or by lower and lower welding fin and grease chamber two side seams, grease chamber's welding gun lifting is driven by lifting assembly, during welding, fin and grease chamber two side seams synchronous welding, improve welding efficiency, save weld time, lifting assembly comprises lifting motor, lifting motor rotating shaft is fixedly connected with nut screw, corresponding grease chamber welding gun arranges lifting welding gun seat, the corresponding nut screw of lifting welding gun seat arranges screw thread, lifting motor rotating shaft drives nut screw to rotate, thus realize the lifting of lifting welding gun seat, rise for protection lifting welding gun seat is stable, the axis of guide and base are set, the axis of guide is fixed on base also through lifting welding gun seat, for realizing automatic control, for lifting motor connection control device, the speed that lifting motor rotating shaft rotates at every turn and revolution set by controller, and then control rising or falling speed and the lifting travel of grease chamber's welding gun, this parameter is determined according to the actual parameter of institute's welding product, the preferred servomotor of lifting motor, in order to realize the perfection welding of fin and grease chamber's weld seam, grease chamber's welding gun adopts L shape welding gun, grease chamber's welding gun rifle head welds it perpendicular to fin and grease chamber's seam.
In described second step, fin two ends grease chamber welds simultaneously, each employing a pair grease chamber's welding gun, and fin two ends grease chamber welds simultaneously, improves welding efficiency, saves weld time.
In described 3rd step, seam welding gun is also fixed by lifting assembly, after having welded grease chamber and fin, grease chamber's welding gun is replaced by the welding that seam welding gun carries out connecting plate and main flow siphunculus linear joint, seam welding gun adopts yi word pattern welding gun, during welding, welding gun rifle head aims at connecting plate and major flow tube seam.
In described 4th step, circular arc rotary welding gun is fixed on turntable, turntable connects machine shaft, motor is embedded in turntable bottom, rotary welding gun screws in the seam between two panels adjacent connection plates under the drive of turntable, seam between two pieces of adjacent connection plates is welded, because connecting plate is arc, so adopt circular arc rotary welding gun, perfection between welding gun and seam is agreed with, promotes welding quality, motor is fixed on lifting platform, nut screw and the axis of guide are also through lifting platform, on lifting platform, corresponding nut screw arranges screw thread, lifting platform can realize rotary welding gun lifting under the drive of nut screw, complete the welding of all connecting plate seams thus, in order to realize automatic control, can by servomotor and motor connection control device, rising or falling speed and the stroke of lifting platform set by controller, the rotary speed of machine shaft and angle also can be controlled by controller, and then control the rising or falling speed of rotary welding gun, lifting travel and the anglec of rotation, this parameter is determined according to the actual parameter of institute's welding product.
Can adopt multiple welding manner in above-mentioned welding process, such as, gas shielded arc welding, argon arc welding and two protect weldering and various ways mixing welding etc.
Compared with prior art, the present invention has following beneficial effect:
The invention provides a kind of transformer heating panel, structure is simple, safe and reliable, good airproof performance, radiating rate is fast, mounting flange on main flow siphunculus is connected with the flange of transformer store oil main body connector, and then with connect transformer oil pipe and communicate, transformer conduction oil enters grease chamber by main flow siphunculus and connecting plate oil leaking hole, then flow into fin, fin comprises the vertical passage and radiating fin that are formed by heat sink section bar, and vertical passage and radiating fin are structure as a whole, the preferred aluminium alloy of heat sink section bar, conduction oil heat is discharged fast by fin; The production technology of transformer heating panel, convenient and swift, the transformer heating panel good airproof performance of production, long service life, full welding process can realize automatic control, saves manpower, reduces labour intensity.
Accompanying drawing explanation
Fig. 1 is transformer cooling plate structure schematic diagram.
Fig. 2 is that embodiment 2 welds total figure.
Fig. 3 is embodiment 2 rotary welding gun welding profile.
Fig. 4 is embodiment 2 grease chamber welding gun welding sketch.
In figure: 1, fin; 2, main flow siphunculus; 3, radiating fin; 4, grease chamber; 5, connecting plate; 6, grease chamber's welding gun; 7, seam welding gun; 8, rotary welding gun; 9, the axis of guide; 10, nut screw; 11, welding gun seat is elevated; 12, turntable; 13, base; 14, lifting platform.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the present invention is described further:
Embodiment 1:
As shown in Figure 1, transformer heating panel of the present invention, comprise fin 1 and main flow siphunculus 2, described fin 1 comprises the vertical passage and radiating fin 3 that are formed by heat sink section bar, vertical passage and radiating fin 3 are structure as a whole, the sealing of described main flow siphunculus 2 one end, the other end is welded and fixed flange, described fin 1 two ends are fixedly connected with grease chamber 4, grease chamber 4 connects connecting plate 5 simultaneously, the corresponding connecting plate 5 in grease chamber 4 arranges groove, and grease chamber 4, connecting plate 5 and main flow siphunculus 2 weld together in turn, and on connecting plate 5 centre position and main flow siphunculus 2, correspondence arranges oil leaking hole.
Wherein, connecting plate 5 is set to arc, adapts with main flow siphunculus 2 arcwall face, fits completely after both welding, good airproof performance; Main flow siphunculus 2 is provided with fuel outlet valve and vent valve, fuel outlet valve can discharge conduction oil in fin 1, vent valve can discharge the pressed gas accumulated in fin 1, thus realize vacuum in oil pipe, ensure the trafficability performance of conduction oil, fuel outlet valve is arranged on main flow siphunculus 2 top, and vent valve is arranged on main flow siphunculus 2 bottom; Fin 1 is provided with hoisting ring, conveniently carries out lifting to it and fixes.
When the present invention uses, mounting flange on main flow siphunculus 2 is connected with the flange of transformer store oil main body connector, and then with connect transformer oil pipe and communicate, transformer conduction oil enters grease chamber 4 by main flow siphunculus 2 and connecting plate 5 oil leaking hole, then fin 1 is flowed into, fin 1 comprises the vertical passage and radiating fin 3 that are formed by heat sink section bar, vertical passage and radiating fin 3 are structure as a whole, the preferred aluminium alloy of heat sink section bar, an extrusion modling, conduction oil heat is discharged fast by fin 1.
Embodiment 2:
The present embodiment provides a kind of transformer heating panel production technology, and structure shown in composition graphs 2-4, comprises the following steps:
The first step, welds together connecting plate 5 and grease chamber 4;
Second step, welded together by grease chamber's welding gun 6 in grease chamber 4 and fin 1, grease chamber's welding gun 6 is fixed by lifting assembly;
3rd step, arranges the connecting plate 5 welded, grease chamber 4 and fin 1 assembly in turn and is mounted on main flow siphunculus 2, each connecting plate 5 linear array, is welded to connect the straight shape edge of plate 5 by seam welding gun 7;
4th step, circular arc rotary welding gun 8 screws in the space between abutting fins 1, is welded to connect arc shaped slits between plate 5 and connecting plate 5.
Wherein, the first step is welded to connect the seam between plate 5 and grease chamber 4, and this step is completed by common welding gun, second step uses a pair grease chamber's welding gun 6 simultaneously from top to bottom or by lower and lower welding fin 1 and 4 liang, grease chamber side seams, grease chamber's welding gun 6 is elevated and is driven by lifting assembly, during welding, fin 1 and 4 liang, grease chamber side seams synchronous welding, improve welding efficiency, save weld time, lifting assembly comprises lifting motor, lifting motor rotating shaft is fixedly connected with nut screw 10, corresponding grease chamber welding gun 6 arranges lifting welding gun seat 11, the corresponding nut screw 10 of lifting welding gun seat 11 arranges screw thread, lifting motor rotating shaft drives nut screw 10 to rotate, thus realize the lifting of lifting welding gun seat 11, rise for protection lifting welding gun seat 11 is stable, the axis of guide 9 and base 13 are set, the axis of guide 9 is fixed on base 13 also through lifting welding gun seat 11, for realizing automatic control, for lifting motor connection control device, the speed that lifting motor rotating shaft rotates at every turn and revolution set by controller, and then control rising or falling speed and the lifting travel of grease chamber's welding gun 6, this parameter is determined according to the actual parameter of institute's welding product, the preferred servomotor of lifting motor, in order to realize the perfection welding of fin 1 and grease chamber 4 weld seam, grease chamber's welding gun 6 adopts L shape welding gun, grease chamber's welding gun 6 rifle head welds it perpendicular to fin 1 and grease chamber 4 seam, in second step, fin 1 two ends grease chamber 4 welds simultaneously, each employing a pair grease chamber's welding gun 6, and fin 1 two ends grease chamber 4 welds simultaneously, improves welding efficiency, saves weld time.
In 3rd step, seam welding gun 7 is also fixed by lifting assembly, after having welded grease chamber 4 and fin 1, grease chamber's welding gun 6 is replaced by the welding that seam welding gun 7 carries out connecting plate 5 and main flow siphunculus 2 linear joint, seam welding gun 7 adopts yi word pattern welding gun, during welding, welding gun rifle head aims at connecting plate 5 and main flow siphunculus 2 seam.
In 4th step, circular arc rotary welding gun 8 is fixed on turntable 12, turntable 12 connects machine shaft, motor is embedded in turntable 12 bottom, rotary welding gun 8 screws in the seam between two panels adjacent connection plates 5 under the drive of turntable 12, seam between two pieces of adjacent connection plates 5 is welded, because connecting plate 5 is arc, so adopt circular arc rotary welding gun 8, perfection between welding gun and seam is agreed with, promotes welding quality, motor is fixed on lifting platform 14, nut screw 10 and the axis of guide 9 are also through lifting platform 14, on lifting platform 14, corresponding nut screw 10 arranges screw thread, lifting platform 14 can realize rotary welding gun 8 and be elevated under the drive of nut screw 10, complete the welding of all connecting plate 5 seams thus, in order to realize automatic control, can by servomotor and motor connection control device, rising or falling speed and the stroke of lifting platform 14 set by controller, the rotary speed of machine shaft and angle also can be controlled by controller, and then control the rising or falling speed of rotary welding gun 8, lifting travel and the anglec of rotation, this parameter is determined according to the actual parameter of institute's welding product.
Can adopt multiple welding manner in above-mentioned welding process, such as, gas shielded arc welding, argon arc welding and two protect weldering and various ways mixing welding etc.
Claims (10)
1. a transformer heating panel, comprise fin (1) and main flow siphunculus (2), described fin (1) comprises the vertical passage and radiating fin (3) that are formed by heat sink section bar, vertical passage and radiating fin (3) are structure as a whole, it is characterized in that, the sealing of described main flow siphunculus (2) one end, the other end is welded and fixed flange, described fin (1) two ends are fixedly connected with grease chamber (4), grease chamber (4) connects connecting plate (5) simultaneously, grease chamber (4) corresponding connecting plate (5) arranges groove, grease chamber (4), connecting plate (5) and main flow siphunculus (2) weld together in turn, connecting plate (5) centre position and the upper correspondence of main flow siphunculus (2) arrange oil leaking hole.
2. transformer heating panel according to claim 1, is characterized in that, described connecting plate (5) is set to arc.
3. transformer heating panel according to claim 1, is characterized in that, described main flow siphunculus (2) is provided with fuel outlet valve and vent valve.
4. transformer heating panel according to claim 1, is characterized in that, described fin (1) is provided with hoisting ring.
5. a transformer heating panel production technology as claimed in claim 1, is characterized in that, comprise the following steps:
The first step, welds together connecting plate (5) and grease chamber (4);
Second step, welded together by grease chamber's welding gun (6) in grease chamber (4) and fin (1), grease chamber's welding gun (6) is fixed by lifting assembly;
3rd step, the connecting plate welded (5), grease chamber (4) and fin (1) assembly being arranged in turn is mounted on main flow siphunculus (2), each connecting plate (5) linear array, is welded to connect the straight shape edge of plate (5) by seam welding gun (7);
4th step, circular arc rotary welding gun (8) screws in the space between abutting fins (1), is welded to connect the arc shaped slits between plate (5) and connecting plate (5).
6. transformer heating panel production technology according to claim 5, is characterized in that, the described first step is welded to connect the seam between plate (5) and grease chamber (4).
7. transformer heating panel production technology according to claim 5, is characterized in that, described second step uses a pair grease chamber's welding gun (6) to weld fin (1) and grease chamber (4) two side seams simultaneously.
8. the transformer heating panel production technology according to claim 5 or 7, is characterized in that, in described second step, fin (1) two ends grease chamber (4) welds simultaneously, each employing a pair grease chamber's welding gun (6).
9. transformer heating panel production technology according to claim 5, is characterized in that, in described 4th step, circular arc rotary welding gun (8) is fixed on turntable (12), and turntable (12) connects machine shaft.
10. transformer heating panel production technology according to claim 9, is characterized in that, described motor is fixed on lifting platform (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510547034.7A CN105185518B (en) | 2015-08-31 | 2015-08-31 | Transformer heat sink and its production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510547034.7A CN105185518B (en) | 2015-08-31 | 2015-08-31 | Transformer heat sink and its production technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105185518A true CN105185518A (en) | 2015-12-23 |
| CN105185518B CN105185518B (en) | 2018-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510547034.7A Active CN105185518B (en) | 2015-08-31 | 2015-08-31 | Transformer heat sink and its production technology |
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| Country | Link |
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| CN (1) | CN105185518B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458640A (en) * | 2016-01-25 | 2016-04-06 | 淄博鼎电电力设备有限公司 | Novel aluminum alloy transformer cooling fin clamping mechanism and technological process |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2030367U (en) * | 1988-04-22 | 1989-01-04 | 常州片式散热器厂 | Fin type radiator for transformer |
| CN101691970A (en) * | 2009-09-22 | 2010-04-07 | 史正生 | Finned radiator |
| CN103575140A (en) * | 2012-07-19 | 2014-02-12 | 格伦格斯有限公司 | Compact type aluminum heat exchanger with welding pipe for power electronic equipment and battery cooling |
| CN203605535U (en) * | 2013-10-23 | 2014-05-21 | 上海恒曦实业有限公司 | Micro-channel heat exchanger for refrigeration dryer |
| CN204066951U (en) * | 2014-09-30 | 2014-12-31 | 仇传祯 | A kind of novel combination type Aluminium Radiator being applicable to power transformer |
| CN205028746U (en) * | 2015-08-31 | 2016-02-10 | 淄博鹏太电力设备有限公司 | Transformer heating panel |
-
2015
- 2015-08-31 CN CN201510547034.7A patent/CN105185518B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2030367U (en) * | 1988-04-22 | 1989-01-04 | 常州片式散热器厂 | Fin type radiator for transformer |
| CN101691970A (en) * | 2009-09-22 | 2010-04-07 | 史正生 | Finned radiator |
| CN103575140A (en) * | 2012-07-19 | 2014-02-12 | 格伦格斯有限公司 | Compact type aluminum heat exchanger with welding pipe for power electronic equipment and battery cooling |
| CN203605535U (en) * | 2013-10-23 | 2014-05-21 | 上海恒曦实业有限公司 | Micro-channel heat exchanger for refrigeration dryer |
| CN204066951U (en) * | 2014-09-30 | 2014-12-31 | 仇传祯 | A kind of novel combination type Aluminium Radiator being applicable to power transformer |
| CN205028746U (en) * | 2015-08-31 | 2016-02-10 | 淄博鹏太电力设备有限公司 | Transformer heating panel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458640A (en) * | 2016-01-25 | 2016-04-06 | 淄博鼎电电力设备有限公司 | Novel aluminum alloy transformer cooling fin clamping mechanism and technological process |
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| CN105185518B (en) | 2018-03-23 |
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