CN101369482B - Water-cooled transformer and its welding method for line pipe and connection copper bar - Google Patents
Water-cooled transformer and its welding method for line pipe and connection copper bar Download PDFInfo
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- CN101369482B CN101369482B CN 200810028979 CN200810028979A CN101369482B CN 101369482 B CN101369482 B CN 101369482B CN 200810028979 CN200810028979 CN 200810028979 CN 200810028979 A CN200810028979 A CN 200810028979A CN 101369482 B CN101369482 B CN 101369482B
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- welding
- water
- spool
- transformer
- copper
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Abstract
The invention discloses a water cooled transformer of welding part with strong over-electricity and overheating capabilities and a method for welding line tubes and wiring copper array thereof. A cross section of the water cooled transformer used for the line tube of transformer is circular, a water nozzle connecting the cooling circulation water is directly outputted by the circular line tube port; the method for welding line tubes and wiring copper array of the water cooled transformer comprises firstly using argon arc welding process, welding a seam base of the line tubes and the wiring copper array by copper welding flux with bad fluidness and low melting point; then using a gas welding process, filling until the welding face is jointed well adopting a silver copper welding flux with strong fluidness and low melting point. The invention is used for transformer field.
Description
Technical field
The present invention relates to the welding method of a kind of water-cooled transformer and spool thereof and copper busbar.
Background technology
Transformer because of the existence of iron loss, eddy current, magnetic hysteresis and copper loss, can cause that the transformer temperature raises in running, therefore, transformer all is equipped with the heat that produces when cooling system just can make transformer distribute work smoothly.Forms such as that the cooling of transformer has is air-cooled, oil cooling and water-cooled.Water cooled transformer will make open-core type as the coil of secondary winding, allow cooling water circulate in this air core coil and form the cooling system of water-cooled transformer.The cross section of the air core coil of present water-cooled transformer mostly is square, its water nozzle that connects recirculated water goes out from the outside of copper busbar, the general gas welding technique that adopts, do the square spool of solder flux and copper busbar and square spool and water nozzle welding with phosphor-copper, though this welding method technological operation is simple, because the fusing point of phosphor-copper solder flux is low, flowability is not strong, therefore its welding position internal structure hole is more, cause rosin joint easily, influence the electric energy power of crossing of welding position, produce superheating phenomenon; Water nozzle face down bonding outside square spool goes out again, close with the welding position of square spool and copper busbar, cause in use at water-cooled transformer and since big electric current by the time continuous boiler water circulation cooling, water nozzle produces the ionization corrosion and the initiation seepage with the spool welding position.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, provides a kind of welding position to cross electric energy power and reaches the overheated good water-cooled transformer and the welding method of spool and copper busbar thereof by force.
The technical solution adopted in the present invention is: the cross section of the spool that is used for transformer of water-cooled transformer of the present invention is for circular, and the water nozzle of connection cooling circulating water is directly picked out by the spool port of circle.
Method with aforementioned spool and copper busbar welding of the present invention is to follow these steps to carry out:
Adopt the argon arc welding procedure, the red copper solder flux welding spool poor with flowability, that fusing point is high and the seam base portion of copper busbar (1), earlier;
(2), again adopt gas welding technique, fill up to the solder side joint good with mobile strong, low-melting silver-bearing copper solder flux.
The invention has the beneficial effects as follows: the cross section that the present invention is used for the spool of transformer is circle, the water nozzle that connects cooling circulating water is directly picked out by the spool port of circle, and the welding position contact-making surface of both having avoided square spool and copper busbar is too small and produce and conduct electricity and the heat conduction bad phenomenon; Avoid the welding position of square spool and copper busbar and water nozzle to cross near and generation ionization corrosion again; The present invention is that (1), elder generation adopt the argon arc welding procedure, the red copper solder flux welding spool poor with flowability, that fusing point is high and the seam base portion of copper busbar with the spool of circle and the method for copper busbar welding; (2), adopt gas welding technique again, fill up to the solder side joint good with strong, the low-melting silver-bearing copper solder flux of flowability, avoided rosin joint and weldering contact-making surface too small effectively, thereby the strong electric overheated ability of mistake that has guaranteed the welding position, avoid the superheating phenomenon in the use, and be beneficial to the heat radiation of copper busbar.
Description of drawings
Fig. 1 is the structural representation of water-cooled transformer of the present invention;
Fig. 2 is the side-looking structural representation of water-cooled transformer of the present invention;
Fig. 3 is the welding schematic diagram of spool of the present invention and copper busbar.
Embodiment
As shown in Figure 1 and Figure 2, the cross section of the spool that is used for transformer 1 of water-cooled transformer of the present invention is for circular, and the water nozzle 3 of connection cooling circulating water is directly picked out by spool 1 port of circle.
The present invention carries out the spool 1 of circle according to the following steps with the method that copper busbar 2 welds mutually: as shown in Figure 3,
Adopt the argon arc welding procedure, the red copper solder flux welding spool poor with flowability, that fusing point is high and the seam base portion A of copper busbar (1), earlier;
(2), again adopt gas welding technique, fill up to solder side B joint good with mobile strong, low-melting silver-bearing copper solder flux.
Claims (1)
1. the welding method of the spool of a water-cooled transformer and copper busbar is characterized in that: the cross section of described spool is for circular, and the water nozzle that connects cooling circulating water is directly picked out by the spool port of circle;
Described welding method follows these steps to carry out:
Adopt the argon arc welding procedure, the red copper solder flux welding spool poor with flowability, that fusing point is high and the seam base portion of copper busbar (1), earlier;
(2), again adopt gas welding technique, fill up to the solder side joint good with mobile strong, low-melting silver-bearing copper solder flux.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810028979 CN101369482B (en) | 2008-06-24 | 2008-06-24 | Water-cooled transformer and its welding method for line pipe and connection copper bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810028979 CN101369482B (en) | 2008-06-24 | 2008-06-24 | Water-cooled transformer and its welding method for line pipe and connection copper bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101369482A CN101369482A (en) | 2009-02-18 |
| CN101369482B true CN101369482B (en) | 2011-05-11 |
Family
ID=40413246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810028979 Expired - Fee Related CN101369482B (en) | 2008-06-24 | 2008-06-24 | Water-cooled transformer and its welding method for line pipe and connection copper bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101369482B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611329A (en) * | 2011-01-24 | 2012-07-25 | 江苏清能电源有限公司 | High frequency inversion rectifying device for three-phase high-power low voltage and large current and method thereof |
| CN102489807A (en) * | 2011-11-28 | 2012-06-13 | 苏州工业园区隆盛电器成套设备制造有限公司 | Copper-copper brazing process for transformers for rail vehicles |
| CN102922152B (en) * | 2012-11-26 | 2015-07-15 | 天津市特变电工变压器有限公司 | Welding method of low-voltage and large-current stranded conductor and bus bar |
| CN113963945A (en) * | 2021-10-28 | 2022-01-21 | 沈阳铁路信号有限责任公司 | Method for soldering tin between high-frequency inductor enameled wire and wire-wound column on railway transponder |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2291713Y (en) * | 1997-04-03 | 1998-09-16 | 苍乃斌 | Oil-immersed water-cooled transformer |
| CN201226287Y (en) * | 2008-06-30 | 2009-04-22 | 周志林 | Water-cooled transformer |
-
2008
- 2008-06-24 CN CN 200810028979 patent/CN101369482B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2291713Y (en) * | 1997-04-03 | 1998-09-16 | 苍乃斌 | Oil-immersed water-cooled transformer |
| CN201226287Y (en) * | 2008-06-30 | 2009-04-22 | 周志林 | Water-cooled transformer |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平10-166150A 1998.06.23 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101369482A (en) | 2009-02-18 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: FOSHAN CITY COUNTRY ELECTRIC CO., LTD. Assignor: Zhou Zhilin Contract record no.: 2011440000786 Denomination of invention: Water-cooled transformer and its welding method for line pipe and connection copper bar Granted publication date: 20110511 License type: Exclusive License Open date: 20090218 Record date: 20110802 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20180624 |