CN105697888A - Wire connecting copper pipe for rotor of double-water internal cooling generator, and processing technology of wire connecting copper pipe - Google Patents
Wire connecting copper pipe for rotor of double-water internal cooling generator, and processing technology of wire connecting copper pipe Download PDFInfo
- Publication number
- CN105697888A CN105697888A CN201610152740.6A CN201610152740A CN105697888A CN 105697888 A CN105697888 A CN 105697888A CN 201610152740 A CN201610152740 A CN 201610152740A CN 105697888 A CN105697888 A CN 105697888A
- Authority
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- China
- Prior art keywords
- copper pipe
- connecting copper
- wire connecting
- square
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/003—Rigid pipes with a rectangular cross-section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/02—Rigid pipes of metal
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
Abstract
The invention discloses a wire connecting copper pipe for a rotor of a double-water internal cooling generator, and a processing technology of the wire connecting copper pipe, belongs to the field of connecting copper pipes, and solves the problems that a conventional connecting copper pipe is poor in cooling effect, and difficult to assemble. The wire connecting copper pipe is a square pipe shaped like homocentric squares. The middle part of the square pipe is larger than the two end parts of the square pipe in size. A trapezoidal structure provided with a transitional slope is arranged between the middle part and one end part of the square pipe. A first square hole corresponding to the middle part is larger than second square holes corresponding to the two end parts in size. The processing technology is used for processing the wire connecting copper pipe. An assembly groove can be formed in the projection part in the middle of the wire connecting copper pipe to facilitate mounting. The protruding first square hole can enable cooling water to flow more quickly, so that the cooling effect is improved. The processing technology has the advantages that the inner hole of the wire connecting copper pipe is smooth, and is low in possibility of scaling, and the service life of the wire copper pipe is prolonged.
Description
Technical field
The present invention relates to copper material processing technique field, particularly relate to the processing technique of a kind of double water innercooling electric generator rotor wire connecting copper pipe and this connecting copper pipe。
Background technology
Double water innercooling electric generator is the electromotor all adopting internal water flowing cooling in stator and rotor windings。Connecting copper pipe realizes the vitals of internal water flowing cooling as electromotor, and its structural design and endoporus fineness are had significantly high requirement。
Existing connecting copper pipe is the cylindrical tube that outside dimension is consistent, there is the shortcoming assembling difficulty, waste material, the outside dimension of existing connecting copper pipe and internal diameter size are for stretch simultaneously, cause the shortcomings such as low, the surfaces externally and internally fineness difference of forming gear precision, in turn result in the problem such as cooling effect difference, the easy fouling of endoporus。
Summary of the invention
It is an object of the present invention to propose a kind of easy to assembly, save material double water innercooling electric generator rotor wire connecting copper pipe。
It is a further object to provide and a kind of make the double water innercooling electric generator rotor wire connecting copper pipe processing technique that connecting copper pipe surfaces externally and internally is bright and clean, dimensional accuracy is high。
For reaching this purpose, the present invention by the following technical solutions:
A kind of double water innercooling electric generator rotor wire connecting copper pipe, described connecting copper pipe is cross section is back-shaped rectangular tube, described rectangular tube is the size being sized larger than two end portions of mid portion, between mid portion and two end portions, processing has the ladder-shaper structure of intermediate incline, the second square hole dimension being sized larger than corresponding described two end portions of the first square opening of corresponding described mid portion。
Further technical scheme is, the outer wall dimension in the cross section of described mid portion is 21mm × 21mm, the wall thickness of the first corresponding square opening is 5.4mm, and the outer wall dimension in the cross section of described two end portions is 17mm × 17mm, and the wall thickness of the second corresponding square opening is 4.25mm。
A kind of processing technique for processing double water innercooling electric generator rotor wire connecting copper pipe described above, comprises the steps:
Step 1: extruded pipe；
Step 2: carry out Technology for Heating Processing；
Step 3: adopt double inclined plane abnormity external mold to coordinate the drawing and forming through a time or multi-pass to go out square outer wall and the trapezium structure of described connecting copper pipe；
Step 4: the connecting copper pipe in stretching step 3, stretch mid portion and two end portions successively, the outer wall dimension making described intermediate portion cross-section is that the outer wall dimension with described two end portions cross section is respectively sized, and the axial length of described mid portion and described two end portions is respectively in preseting length。
Step 5: adopting square Chinese style core print to connect core bar cooperation through the first square opening and second square opening of the drawing and forming connecting copper pipe of a time or multi-pass is be sized。
Further technical scheme is, described step 1 comprises the steps:
Step 101: the mode molding external diameter adopting large-tonnage water seal extruding is 80mm, and wall thickness is the pipe of the cylindrical inner circle of 10mm；
Step 102: adopting pipe mill rolling external diameter is 42mm, and wall thickness is the pipe of 5.5mm；
Step 103: sky draws described pipe in step 102 to be 31mm to the external diameter of pipe, and wall thickness is 5.5mm。
Further technical scheme is, the described Technology for Heating Processing in described step 2 is the heat treatment mode of cascade raising temperature, segmentation insulation。
Further technical scheme is, described cascade raising temperature, segmentation insulation include；
Step A: be warming up to 350 DEG C, keeps this temperature 18-22min；
Step B: be continuously heating to 450 DEG C, keeps this temperature 18-22min；
Step C: be continuously heating to 550 DEG C, keeps this temperature 18-22min。
Further technical scheme is, described double inclined plane abnormity external mold is ladder-shaper structure, the profile of the ladder-shaper structure of connecting copper pipe described in molding。
Further technical scheme is, adopting the connecting copper pipe of molding in great tonnage hydraulic formula stretching-machine stretching step 3 in step 4, the outer wall dimension making described intermediate portion cross-section is that the outer wall dimension with described two end portions cross section is respectively sized and respectively in preseting length。
Further technical scheme is, the sizing section of described square Chinese style core print is cross section is square ladder shaft part, described square Chinese style core print end connects draws core bar, described in draw core bar to drive described square Chinese style core print travelling with molding the first square opening and the second square opening in described connecting copper pipe。
The invention have the benefit that
Double water innercooling electric generator rotor wire connecting copper pipe of the present invention adopts middle protrusion, junction to be that smooth bevel, cross-sectional shape and endoporus are foursquare ladder-shaper structure profiled-cross-section hollow copper tubing, the outer wall that intermediate ledge divides can be offered and make easier for installation for the groove assembled, and narrow footpath, two ends saves material simultaneously；It addition, the flowing that the first square opening protruded can make cooling water is more quick, improves cooling effect, and bore area is less scaling, make unit working condition improve, increase the service life。
Double water innercooling electric generator rotor wire connecting copper pipe processing technique of the present invention adopts overlength double inclined plane abnormal shape external mold stretching conductor copper pipe external diameter, square Chinese style core print stretches conductor copper pipe internal diameter, the drawing process that external diameter and internal diameter carry out respectively, the intermediate heat-treatment of utilization science, the features such as the product size precision height produced, bright and clean, high pressure resistant, the long length large scale of surfaces externally and internally, high-precision endoporus makes flow of cooling water more smooth and easy and less scaling, substantially improve cooling effect, extend service life。
Accompanying drawing explanation
Fig. 1 is the structural representation of the double water innercooling electric generator rotor wire connecting copper pipe that the embodiment of the present invention provides；
Fig. 2 is E-E cross-sectional view in Fig. 1；
Fig. 3 is F-F cross-sectional view in Fig. 1。
In figure:
1, rectangular tube；2, the first square opening；3, the second square opening；11, mid portion；12, two end portions。
Detailed description of the invention
Technical scheme is further illustrated below in conjunction with accompanying drawing and by detailed description of the invention。
Preferred embodiment
The open a kind of double water innercooling electric generator rotor wire connecting copper pipe of the present embodiment, as shown in Figure 1 to Figure 3, described connecting copper pipe is cross section is back-shaped rectangular tube 1, the size being sized larger than two end portions 12 of described rectangular tube 1 mid portion 11, there are the trapezium structure of intermediate incline, the size of second square opening 3 being sized larger than corresponding described two end portions 12 of the first square opening 2 of corresponding described mid portion 11 for processing between mid portion 11 and two end portions 12。
Wherein, preferably, the outer wall dimension in the cross section of described mid portion 11 is 21mm × 21mm, and the wall thickness of the first corresponding square opening 2 is 5.4mm, the outer wall dimension in the cross section of described two end portions 12 is 17mm × 17mm, and the wall thickness of the second corresponding square opening 3 is 4.25mm。
The present embodiment double water innercooling electric generator rotor wire connecting copper pipe adopts middle protrusion, junction to be that smooth bevel, cross-sectional shape and endoporus are foursquare trapezium structure profiled-cross-section hollow copper tubing, the outer wall that intermediate ledge divides can be offered and make easier for installation for the groove assembled, and narrow footpath, two ends saves material simultaneously；It addition, the flowing that the first square opening 2 protruded can make cooling water is more quick, improves the effect of cooling, and bore area is less scaling, makes unit working condition improve, increases the service life。
The present embodiment is also disclosed a kind of double water innercooling electric generator rotor wire connecting copper pipe processing technique,
Step 1: extruded pipe, this molding pipe is the solid cylinder pipe setting external diameter。Specifically extruded comprises the steps:
Step 101: the mode molding external diameter adopting large-tonnage water seal extruding is 80mm, and wall thickness is the pipe of the cylindrical inner circle of 10mm；
Step 102: adopting pipe mill rolling external diameter is 42mm, and wall thickness is the pipe of 5.5mm；
Step 103: sky draws described pipe in step 102 to be 31mm to the external diameter of pipe, and wall thickness is 5.5mm。
Step 2: carry out Technology for Heating Processing。It is specially the heat treatment mode of cascade raising temperature, segmentation insulation。Optimal way is:
Step A: be warming up to 350 DEG C, keeps this temperature 18-22min, it is preferred to 20min；
Step B: be continuously heating to 450 DEG C, keeps this temperature 18-22min, it is preferred to 20min；
Step C: be continuously heating to 550 DEG C, keeps this temperature 18-22min, it is preferred to 20min。
Carry out cascade raising temperature, the special thermal treatment technique of segmentation insulation, make the performance of material reach highly uniform, be conducive to material in drawing process fully to deform, the physical dimension of copper pipe more can reach designing requirement。
Step 3: adopt double inclined plane abnormity external mold to coordinate the drawing and forming through a time or multi-pass to go out square outer wall and the trapezium structure of described connecting copper pipe。Described double inclined plane abnormity external mold is ladder trapezium structure, the profile of the trapezium structure of connecting copper pipe described in molding。
Step 4: adopt the connecting copper pipe in great tonnage hydraulic formula stretching-machine stretching step 3, stretch mid portion 11 and two end portions 12 successively, make the outer wall dimension in described mid portion 11 cross section and the outer wall dimension in described two end portions 12 cross section respectively be sized, and make described mid portion 11 and two end portions 12 respectively in preseting length。Great tonnage hydraulic formula precision stretching-machine stretches connecting copper pipe, connecting copper pipe is made to be accurately positioned in drawing process, guarantee that the length dimension of the profiled-cross-section hollow copper tubing mid portion 11 of trapezium structure reaches designing requirement, effectively extend the length of two end portions 12, it is ensured that the length of conductor copper pipe simultaneously。
Step 5: adopting square Chinese style core print to connect core bar cooperation through the first square opening 2 and second square opening 3 of the drawing and forming connecting copper pipe of a time or multi-pass is be sized。
The sizing section of described square Chinese style core print is cross section is square ladder shaft part, and described square Chinese style core print end connects draws core bar, described in draw core bar to drive described square Chinese style core print travelling with molding the first square opening 2 and the second square opening 3 in described connecting copper pipe。
The present embodiment double water innercooling electric generator rotor overlength double inclined plane abnormal shape external mold stretching conductor copper pipe external diameter adopted in wire connecting copper pipe processing technique, square Chinese style core print stretches conductor copper pipe internal diameter, the drawing process that external diameter and internal diameter carry out respectively, the intermediate heat-treatment of utilization science, the features such as the product size precision height produced, bright and clean, high pressure resistant, the long length large scale of surfaces externally and internally, high-precision endoporus makes flow of cooling water more smooth and easy and less scaling, substantially improve cooling effect, extend service life。
The know-why of the present invention is described above in association with specific embodiment。These descriptions are intended merely to explanation principles of the invention, and can not be construed to limiting the scope of the invention by any way。Based on explanation herein, those skilled in the art need not pay performing creative labour can associate other detailed description of the invention of the present invention, and these modes fall within protection scope of the present invention。
Claims (9)
1. a double water innercooling electric generator rotor wire connecting copper pipe, it is characterized in that, described connecting copper pipe is cross section is back-shaped rectangular tube (1), the size being sized larger than two end portions (12) of described rectangular tube mid portion (11), the trapezium structure of intermediate incline (13) is had for processing, the second square opening (3) size being sized larger than corresponding described two end portions (12) of first square opening (2) of corresponding described mid portion (11) between mid portion (11) and two end portions (12)。
2. double water innercooling electric generator rotor wire connecting copper pipe according to claim 1, it is characterized in that: the outer wall dimension in described mid portion (11) cross section is 21mm × 21mm, the wall thickness of corresponding the first square opening (2) is 5.4mm, the outer wall dimension in described two end portions (12) cross section is 17mm × 17mm, and the wall thickness of corresponding the second square opening (3) is 4.25mm。
3. the processing technique being used for processing double water innercooling electric generator rotor wire connecting copper pipe as claimed in claim 1 or 2, it is characterised in that comprise the steps:
Step 1: extruded pipe；
Step 2: carry out Technology for Heating Processing；
Step 3: adopt double inclined plane abnormity external mold to coordinate the drawing and forming through a time or multi-pass to go out square outer wall and the trapezium structure of described connecting copper pipe；
Step 4: the connecting copper pipe in stretching step 3, stretch mid portion (11) and two end portions (12) successively, making the outer wall dimension in described mid portion (11) cross section and the outer wall dimension in described two end portions (12) cross section respectively be sized, the axial length of described mid portion (11) and two end portions (12) is respectively in preseting length；
Step 5: adopting square Chinese style core print to connect core bar cooperation through the first square opening (2) and second square opening (3) of the drawing and forming connecting copper pipe of a time or multi-pass is be sized。
4. the processing technique of double water innercooling electric generator rotor wire connecting copper pipe according to claim 3, it is characterised in that: described step 1 includes following sub-step:
Step 101: the mode molding external diameter adopting large-tonnage water seal extruding is 80mm, and wall thickness is the pipe of the cylindrical inner circle of 10mm；
Step 102: adopting pipe mill rolling external diameter is 42mm, and wall thickness is the pipe of 5.5mm；
Step 103: sky draws described pipe in step 102 to be 31mm to the external diameter of pipe, and wall thickness is 5.5mm。
5. the processing technique of double water innercooling electric generator rotor wire connecting copper pipe according to claim 3, it is characterised in that: the described Technology for Heating Processing in described step 2 is the heat treatment mode of cascade raising temperature, segmentation insulation。
6. the processing technique of double water innercooling electric generator rotor wire connecting copper pipe according to claim 5, it is characterised in that: described cascade raising temperature, segmentation insulation include；
Step A: be warming up to 350 DEG C, keeps this temperature 18-22min；
Step B: be continuously heating to 450 DEG C, keeps this temperature 18-22min；
Step C: be continuously heating to 550 DEG C, keeps this temperature 18-22min。
7. the processing technique of double water innercooling electric generator rotor wire connecting copper pipe according to claim 3, it is characterised in that: described double inclined plane abnormity external mold is ladder-shaper structure, the profile of the ladder-shaper structure of connecting copper pipe described in molding。
8. the processing technique of double water innercooling electric generator rotor wire connecting copper pipe according to claim 7, it is characterized in that: step 4 adopts the connecting copper pipe of molding in great tonnage hydraulic formula stretching-machine stretching step 3, make the outer wall dimension in described mid portion (11) cross section and the outer wall dimension in described two end portions (12) cross section is respectively sized and respectively in preseting length。
9. the processing technique of double water innercooling electric generator rotor wire connecting copper pipe according to claim 3, it is characterized in that: the sizing section of described square Chinese style core print is cross section is square ladder shaft part, described square Chinese style core print end connects draws core bar, described in draw core bar to drive described square Chinese style core print travelling with molding the first square opening (2) and the second square opening (3) in described connecting copper pipe。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610152740.6A CN105697888B (en) | 2016-03-17 | 2016-03-17 | The processing technology of double water innercooling electric generator rotor wire connecting copper pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610152740.6A CN105697888B (en) | 2016-03-17 | 2016-03-17 | The processing technology of double water innercooling electric generator rotor wire connecting copper pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105697888A true CN105697888A (en) | 2016-06-22 |
| CN105697888B CN105697888B (en) | 2018-01-30 |
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| CN201610152740.6A Active CN105697888B (en) | 2016-03-17 | 2016-03-17 | The processing technology of double water innercooling electric generator rotor wire connecting copper pipe |
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|---|---|---|---|---|
| US20020192495A1 (en) * | 2001-05-31 | 2002-12-19 | Kawasaki Steel Corporation | Welded steel pipe having excellent hydroformability and method for making the same |
| CN101245879A (en) * | 2008-03-26 | 2008-08-20 | 泰兴市圣达铜业有限公司 | Method for processing austenite seamless stainless steel rectangular water pipe used for turbine generator |
| CN101752037A (en) * | 2008-12-12 | 2010-06-23 | 上海飞轮有色新材料股份有限公司 | Copper interconnects for windmill generator and processing method thereof |
| CN102039516A (en) * | 2009-10-09 | 2011-05-04 | 上海飞轮有色新材料股份有限公司 | Method for processing rectangular round-hole wire copper pipe of dual water internal cooling generator |
| CN203717044U (en) * | 2013-11-14 | 2014-07-16 | 上海飞轮有色新材料股份有限公司 | Deformed section connector copper pipe for rotor of large steam-turbine generator |
| CN104625594A (en) * | 2013-11-14 | 2015-05-20 | 上海飞轮有色新材料股份有限公司 | Manufacturing technology method of special-shaped section joint copper pipe for large-type turbo-generator rotor |
| CN205424126U (en) * | 2016-03-17 | 2016-08-03 | 上海飞轮有色新材料股份有限公司 | Double -water internal cooling is wire connection copper pipe for generator rotor |
-
2016
- 2016-03-17 CN CN201610152740.6A patent/CN105697888B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020192495A1 (en) * | 2001-05-31 | 2002-12-19 | Kawasaki Steel Corporation | Welded steel pipe having excellent hydroformability and method for making the same |
| CN101245879A (en) * | 2008-03-26 | 2008-08-20 | 泰兴市圣达铜业有限公司 | Method for processing austenite seamless stainless steel rectangular water pipe used for turbine generator |
| CN101752037A (en) * | 2008-12-12 | 2010-06-23 | 上海飞轮有色新材料股份有限公司 | Copper interconnects for windmill generator and processing method thereof |
| CN102039516A (en) * | 2009-10-09 | 2011-05-04 | 上海飞轮有色新材料股份有限公司 | Method for processing rectangular round-hole wire copper pipe of dual water internal cooling generator |
| CN203717044U (en) * | 2013-11-14 | 2014-07-16 | 上海飞轮有色新材料股份有限公司 | Deformed section connector copper pipe for rotor of large steam-turbine generator |
| CN104625594A (en) * | 2013-11-14 | 2015-05-20 | 上海飞轮有色新材料股份有限公司 | Manufacturing technology method of special-shaped section joint copper pipe for large-type turbo-generator rotor |
| CN205424126U (en) * | 2016-03-17 | 2016-08-03 | 上海飞轮有色新材料股份有限公司 | Double -water internal cooling is wire connection copper pipe for generator rotor |
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| CN105697888B (en) | 2018-01-30 |
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