CN103840621A - Manufacturing method for convex magnetic-pole coil of large-scale bulb tubular water-turbine generator - Google Patents
Manufacturing method for convex magnetic-pole coil of large-scale bulb tubular water-turbine generator Download PDFInfo
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- CN103840621A CN103840621A CN201210470730.9A CN201210470730A CN103840621A CN 103840621 A CN103840621 A CN 103840621A CN 201210470730 A CN201210470730 A CN 201210470730A CN 103840621 A CN103840621 A CN 103840621A
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- pole coil
- bottom plate
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- Manufacture Of Motors, Generators (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The invention provides a manufacturing method for a convex magnetic-pole coil of a large-scale bulb tubular water-turbine generator. The method is characterized in that a copper flat wire of a special cross-section form is adopted and through square weld of a bus of the magnetic-pole coil from top to bottom in a clockwise direction, the magnetic-pole coil forms a heat dissipation wing structure as a whole and thus cooling turns are saved so that a cooling effect better than that of a magnetic-pole coil with cooling turns is achieved through a simple manufacturing method. The manufacturing method for the convex magnetic-pole coil of the large-scale bulb tubular water-turbine generator is reliable in insulation, simple and convenient to manufacture and install, excellent in heat dissipation effect, capable of improving rotor cooling condition and beneficial to improvement of generator power density.
Description
Technical field
The present invention relates to hydraulic generator manufacturing technology field, especially relate to a kind of large-scaled bulb tubular hydraulic generator convex pole coil manufacture method.
Background technology
The pole coil of hydraulic generator adopts the naked flat red copper row of rectangle, pentagon or heptagon to be coiled into more, and Small And Medium Capacity hydraulic generator adopts pentagon pole coil more.For the vertical hydrogenerator of larger capacity, needing increases some radiating turns of growing, and common circle and radiating turn are staggered, and to form the rotor magnetic pole coil of a kind of employing with radiating turn formula, to increase heat-delivery surface, obtains good cooling effect.For large-scaled bulb tubular hydraulic generator rotor, pentagon pole coil radiating effect is slightly poor; Radiating fin formula pole coil installing space is larger, is unsuitable for through-flow unit.Thereby, in large-scaled bulb tubular hydraulic generator rotor structural design, adopt above-mentioned two kinds of pole coil forms all not ideal enough.
For the scaled bulb tubular hydraulic generator of larger capacity (stator punching external diameter more than 7560mm, core length more than 1400mm, rated capacity is more than 3.5 ten thousand KVA), for strengthening rotor cooling effect, the rotor magnetic pole coil in a kind of convex shape cross section is proposed.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of insulation reliable, manufacture simple installation, radiating effect is good, improve rotor cooling condition, be conducive to the convex pole coil manufacture method of the large-scaled bulb tubular hydraulic generator that improves generator power density.
Technical scheme of the present invention is: the invention provides a kind of large-scaled bulb tubular hydraulic generator convex pole coil manufacture method, it is characterized in that: pole coil adopts the copper bar in a kind of convex shape cross section to be coiled into, convex copper strap wire is four welded corner joints in the direction of the clock from top to bottom, amount to 16 circles, coil and coil mounting plate, coil bottom plate is once hot-forming, make coil turn-to-turn insulation with two-layer sized paper, sized paper cements with adhesive tape, when silver phosphor-copper welding rod welds for pole coil, reinforcement is used, after coil completes, first spray paint, spray again the red enamel paint of polyester once, pole core is before assembling coil, with resorcinol expoxy glass grey cloth bag pole(cell) insulation, pole core and the assembling of coil counterweight, hub of a spool is consistent with pole core center, after assembling, mark at pole center line position, gap epoxy resin bonded fiber jam-pack between coil and pole core, and fill sealing with silicon elastic sealant, pole coil is adjusted pad with the coil tray on coil bottom plate and bottom plate, screw is located and is fixed, before coil tray is fixing, adjust pad adjustment with bottom plate, must not be higher than pole core after fastening, screw is fixed with happy safe glue.
Advantage and good effect that the present invention has are: the present invention is insulated reliably, manufacture simple installation, and radiating effect is good, improves rotor cooling condition, is conducive to improve generator power density.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is side-looking structural representation of the present invention.
In figure:
1, pole core, 2, convex copper strap wire, 3, coil bottom plate, 4, coil tray,
5, resorcinol expoxy glass grey cloth, 6, epoxy resin bonded fiber.
Embodiment
As shown in Figure 1, 2, the invention provides a kind of large-scaled bulb tubular hydraulic generator convex pole coil manufacture method.Pole coil adopts the copper bar in a kind of convex shape cross section to be coiled into, convex copper strap wire is four welded corner joints in the direction of the clock from top to bottom, amount to 16 circles, coil and coil mounting plate, coil bottom plate 3 is once hot-forming, make coil turn-to-turn insulation with two-layer sized paper, sized paper cements with adhesive tape, when silver phosphor-copper welding rod welds for pole coil, reinforcement is used, after coil completes, first spray paint, spray again the red enamel paint of polyester once, pole core 1 is before assembling coil, wrap pole(cell) insulation with resorcinol expoxy glass grey cloth 5, pole core 1 and the assembling of coil counterweight, hub of a spool is consistent with pole core 1 center, after assembling, mark at pole center line position, epoxy resin bonded fiber 6 jam-packs for gap between coil and pole core 1, and fill sealing with silicon elastic sealant, pole coil is adjusted pad with the coil tray 4 on coil bottom plate 3 and bottom plate, screw is located and is fixed, before coil tray 4 is fixing, adjust pad adjustment with bottom plate, must not be higher than pole core 1 after fastening, screw is fixed with happy safe glue.
The present invention adopts a kind of copper strap wire of special cross-section form, by to clockwise direction four welded corner joints from top to down of pole coil bus, make pole coil entirety present a kind of radiating wing formula structure, thereby save radiating turn, reach with succinct manufacture than with the more superior cooling effect of radiating turn formula pole coil.The present invention is insulated reliably, manufactures simple installation, and radiating effect is good, improves rotor cooling condition, is conducive to improve generator power density.
Above one embodiment of the present of invention are had been described in detail, but described content is only preferred embodiment of the present invention, can not be considered to for limiting practical range of the present invention.All equalization variation and improvement etc. of doing according to the present patent application scope, within all should still belonging to patent covering scope of the present invention.
Claims (1)
1. a large-scaled bulb tubular hydraulic generator convex pole coil manufacture method, it is characterized in that: pole coil adopts the copper bar in a kind of convex shape cross section to be coiled into, convex copper strap wire is four welded corner joints in the direction of the clock from top to bottom, amount to 16 circles, coil and coil mounting plate, coil bottom plate is once hot-forming, make coil turn-to-turn insulation with two-layer sized paper, sized paper cements with adhesive tape, when silver phosphor-copper welding rod welds for pole coil, reinforcement is used, after coil completes, first spray paint, spray again the red enamel paint of polyester once, pole core is before assembling coil, with resorcinol expoxy glass grey cloth bag pole(cell) insulation, pole core and the assembling of coil counterweight, hub of a spool is consistent with pole core center, after assembling, mark at pole center line position, gap epoxy resin bonded fiber jam-pack between coil and pole core, and fill sealing with silicon elastic sealant, pole coil is adjusted pad with the coil tray on coil bottom plate and bottom plate, screw is located and is fixed, before coil tray is fixing, adjust pad adjustment with bottom plate, must not be higher than pole core after fastening, screw is fixed with happy safe glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210470730.9A CN103840621A (en) | 2012-11-20 | 2012-11-20 | Manufacturing method for convex magnetic-pole coil of large-scale bulb tubular water-turbine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210470730.9A CN103840621A (en) | 2012-11-20 | 2012-11-20 | Manufacturing method for convex magnetic-pole coil of large-scale bulb tubular water-turbine generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103840621A true CN103840621A (en) | 2014-06-04 |
Family
ID=50803848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210470730.9A Pending CN103840621A (en) | 2012-11-20 | 2012-11-20 | Manufacturing method for convex magnetic-pole coil of large-scale bulb tubular water-turbine generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103840621A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110474459A (en) * | 2019-08-08 | 2019-11-19 | 中国长江动力集团有限公司 | A kind of generator amature of electric generator rotor coil and its composition |
| CN113131692A (en) * | 2021-04-19 | 2021-07-16 | 浙江美德亨泵业股份有限公司 | Stator coil winding machine and using method thereof |
-
2012
- 2012-11-20 CN CN201210470730.9A patent/CN103840621A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110474459A (en) * | 2019-08-08 | 2019-11-19 | 中国长江动力集团有限公司 | A kind of generator amature of electric generator rotor coil and its composition |
| CN113131692A (en) * | 2021-04-19 | 2021-07-16 | 浙江美德亨泵业股份有限公司 | Stator coil winding machine and using method thereof |
| CN113131692B (en) * | 2021-04-19 | 2022-06-14 | 浙江美德亨泵业股份有限公司 | Stator coil winding machine and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140604 |