CN203717044U - Deformed section connector copper pipe for rotor of large steam-turbine generator - Google Patents
Deformed section connector copper pipe for rotor of large steam-turbine generator Download PDFInfo
- Publication number
- CN203717044U CN203717044U CN201320718729.3U CN201320718729U CN203717044U CN 203717044 U CN203717044 U CN 203717044U CN 201320718729 U CN201320718729 U CN 201320718729U CN 203717044 U CN203717044 U CN 203717044U
- Authority
- CN
- China
- Prior art keywords
- copper pipe
- pipe
- rotor
- cross
- profiled
- 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.)
- Expired - Lifetime
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 55
- 239000010949 copper Substances 0.000 title claims abstract description 55
- 230000007704 transition Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract 1
- 239000004020 conductor Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 230000012447 hatching Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000009785 tube rolling Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses a deformed section connector copper pipe for a rotor of a large steam-turbine generator. The deformed section connector copper pipe is a stretching part and comprises a first step shaft with large pipe diameter and second and third step shafts with small pipe diameters connected to the two ends of the first step shaft 1 respectively, wherein stretching conical surfaces are arranged at the transitional joints between the first step shaft and the second and third step shafts respectively. According to the technical scheme, the middle connector copper pipe with large pipe diameter is realized by a multi-time stretching process, so that the medium circulation speed is increased and the equipment cooling effect is enhanced; section structures which are square inside and outside are arranged at the small pipe diameters of the two ends of the connector copper pipe, so that the copper pipe can be more conveniently mounted on a generator set, an inner hole of the copper pipe is unlikely to cause scale formation and difficult to block, the pressure resistance of a lead wire copper pipe is greatly improved, the leakage is not easily caused, and the fault rate of the large steam-turbine generator set is greatly reduced.
Description
Technical field
The utility model relates to stamping technology field, profiled-cross-section joint copper pipe for especially a kind of rotor of large turbo-type generator.
Background technique
In recent years, large turbo-type generator group more and more drops into operation of power networks, has become one of main generation mode of power industry, significant for the energy demand that meets economy and social development.
In prior art, rotor of large turbo-type generator mainly pulls in foreign side square copper pipe as main taking sky with similar products such as profiled-cross-section joint copper pipes, product surface is coarse, size deviation is large, material is loose, cause joint copper pipe because rough inner surface easily produces fouling in the time that medium passes through, affect the flow velocity of cooling medium in copper pipe; And size deviation is large, material is loose more can make conductor copper pipe can't stand that because holding the pressure of cooling medium produces leakage.
According to statistics, be the important one in Turbo-generator Sets Faults because rotor of large turbo-type generator affects with the leakage of profiled-cross-section joint copper pipe the fault that whole large turbo-type generator normally moves, an even whole unit is scrapped.Therefore, how to improve joint copper pipe quality of product and moulding process, and then ensure the normal operation of large turbo-type generator group and extend its working life just to seem and become more and more important.
Model utility content
The purpose of this utility model is to provide a kind of rotor of large turbo-type generator profiled-cross-section joint copper pipe, to solve the problem of the easy fouling of copper pipe endoporus, obstruction, and the problem of easily leaking.
For solving the problems of the technologies described above, the utility model adopts following technological scheme:
Profiled-cross-section joint copper pipe for a kind of rotor of large turbo-type generator, described profiled-cross-section joint copper pipe is tensioning member, it comprise Large Diameter Pipeline the first multidiameter shaft, be connected to second, third multidiameter shaft of the pipe with small pipe diameter at the first multidiameter shaft two ends, described the first multidiameter shaft and second, third multidiameter shaft transition joint are respectively equipped with stretching conical surface.
Preferably, it is foreign side, interior side's different in nature cross section joint copper pipe.
Preferably, it is thick walled tube, and the ratio of described outer diameter D and wall thickness S is between 3.0 to 4.0.
As mentioned above, profiled-cross-section joint copper pipe for rotor of large turbo-type generator of the present utility model, adopt multi-drawing moulding process, realize the transition joint copper pipe of Large Diameter Pipeline, not only improve medium velocity of liquid assets, to strengthen apparatus cools effect, and, it is more convenient when the cross section structure that this joint copper pipe caliber small in ends has in foreign side a side makes to install on unit, also make simultaneously copper pipe endoporus less scaling, stop up, improve significantly bearing pressure and being difficult for revealing of conductor copper pipe, greatly reduced the rate of breakdown of large turbo-type generator group.
Brief description of the drawings
Below in conjunction with drawings and embodiments, the utility model is described in further detail;
Fig. 1 is the plane structure chart of a kind of rotor of large turbo-type generator profiled-cross-section joint copper pipe in the utility model;
Fig. 2 is the sectional drawing of A-A hatching in Fig. 1;
Fig. 3 is the sectional drawing of B-B hatching in Fig. 1;
In Fig. 1 to Fig. 3,
The first multidiameter shaft 1, the second multidiameter shaft 2, the 3rd multidiameter shaft 3, conical surface 11.
Embodiment
By specific instantiation, mode of execution of the present utility model is described below, those skilled in the art can understand other advantages of the present utility model and effect easily by the disclosed content of this specification.The utility model can also be implemented or be applied by other different embodiment, and the every details in this specification also can be based on different viewpoints and application, carries out various modifications or change not deviating under spirit of the present utility model.
Shown in Fig. 1, it is the plane structure chart of a kind of rotor of large turbo-type generator profiled-cross-section joint copper pipe.Described profiled-cross-section joint copper pipe is tensioning member, it comprise Large Diameter Pipeline the first multidiameter shaft 1, be connected to second, third multidiameter shaft 2,3 of the pipe with small pipe diameter at the first multidiameter shaft 1 two ends, described the first multidiameter shaft 1 is respectively equipped with stretching conical surface 11 with second, third multidiameter shaft 2,3 transition joints.In the technical program, adopt multi-drawing moulding process, realize the transition joint copper pipe of Large Diameter Pipeline, not only improve medium velocity of liquid assets, to strengthen apparatus cools effect, and, it is more convenient when the cross section structure that this joint copper pipe caliber small in ends has in foreign side a side makes to install on unit, also make simultaneously copper pipe endoporus less scaling, stop up, improved significantly bearing pressure and being difficult for revealing of conductor copper pipe, greatly reduced the rate of breakdown of large turbo-type generator group.
Shown in Fig. 2 and Fig. 3, it is the sectional drawing of A-A and B-B hatching in Fig. 1, preferably, this joint copper pipe is made as to foreign side, interior side's different in nature cross section joint copper pipe, and D1 diameter is greater than D2 diameter.
A kind of profiled-cross-section joint copper pipe of considering the technical program is thick walled tube, and the ratio of its outer diameter D and wall thickness S is between 3.0 to 4.0.The joint copper pipe of this extra small D/S ratio, in stretch forming process, in the time that the drift that moves about stretches, just attenuate of the wall thickness of pipe in the time that sky draws zone position, cause pipe can not touch the sizing section of floating core head completely in sizing area, cause joint copper pipe cannot meet floating core head stretching condition, the physical dimension of copper pipe can not reach the requirement of design.
Therefore, in actual production, by adopting the external mold of the long ramp structure of large modular angle, coordinate the drawing craft of the floating core head on long inclined-plane, in the time that the joint copper pipe of extra small D/S ratio stretches, can effectively reduce drawing process hollow and draw the distance in district, avoid pipe wall thickness reduction.The physical dimension of guaranteeing product reaches designing requirement, for the copper pipe that obtains highi degree of accuracy size provides guarantee.
The manufacturing process of the profiled-cross-section joint copper pipe of the technical program, is briefly described below: first, the mode of pushing by large-tonnage water seal obtains the required copper pipe pipe of this product; Then, adopt tube-rolling machine rolling, and make the material of pipe tightr through super large working modulus; Then, obtain described profiled-cross-section joint copper pipe by the drawing process of large-tonnage stretcher.
As mentioned above, profiled-cross-section joint copper pipe for rotor of large turbo-type generator of the present utility model, adopt multi-drawing moulding process, realize the transition joint copper pipe of Large Diameter Pipeline, not only improve medium velocity of liquid assets, to strengthen apparatus cools effect, and, it is more convenient when the cross section structure that this joint copper pipe caliber small in ends has in foreign side a side makes to install on unit, also make simultaneously copper pipe endoporus less scaling, stop up, improve significantly bearing pressure and being difficult for revealing of conductor copper pipe, greatly reduced the rate of breakdown of large turbo-type generator group.So the utility model has effectively overcome various shortcoming of the prior art and has had high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all can, under spirit of the present utility model and category, modify or change above-described embodiment.Therefore, have in technical field under such as and conventionally know that the knowledgeable modifies or changes not departing from all equivalences that complete under spirit that the utility model discloses and technological thought, must be contained by claim of the present utility model.
Claims (2)
1. a profiled-cross-section joint copper pipe for rotor of large turbo-type generator, it is characterized in that, described profiled-cross-section joint copper pipe is tensioning member, it comprise Large Diameter Pipeline the first multidiameter shaft, be connected to second, third multidiameter shaft of the pipe with small pipe diameter at the first multidiameter shaft two ends, described the first multidiameter shaft and second, third multidiameter shaft transition joint are respectively equipped with stretching conical surface; Described joint copper pipe is thick walled tube, and the ratio of outer diameter D and wall thickness S is between 3.0-4.0.
2. profiled-cross-section joint copper pipe according to claim 1, is characterized in that, it is foreign side, interior side's profiled-cross-section joint copper pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320718729.3U CN203717044U (en) | 2013-11-14 | 2013-11-14 | Deformed section connector copper pipe for rotor of large steam-turbine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320718729.3U CN203717044U (en) | 2013-11-14 | 2013-11-14 | Deformed section connector copper pipe for rotor of large steam-turbine generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203717044U true CN203717044U (en) | 2014-07-16 |
Family
ID=51156207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320718729.3U Expired - Lifetime CN203717044U (en) | 2013-11-14 | 2013-11-14 | Deformed section connector copper pipe for rotor of large steam-turbine generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203717044U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697888A (en) * | 2016-03-17 | 2016-06-22 | 上海飞轮有色新材料股份有限公司 | Wire connecting copper pipe for rotor of double-water internal cooling generator, and processing technology of wire connecting copper pipe |
-
2013
- 2013-11-14 CN CN201320718729.3U patent/CN203717044U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697888A (en) * | 2016-03-17 | 2016-06-22 | 上海飞轮有色新材料股份有限公司 | Wire connecting copper pipe for rotor of double-water internal cooling generator, and processing technology of wire connecting copper pipe |
| CN105697888B (en) * | 2016-03-17 | 2018-01-30 | 上海飞轮有色新材料股份有限公司 | The processing technology of double water innercooling electric generator rotor wire connecting copper pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |