CN202483637U - Novel turbine diaphragm - Google Patents
Novel turbine diaphragm Download PDFInfo
- Publication number
- CN202483637U CN202483637U CN2012200764897U CN201220076489U CN202483637U CN 202483637 U CN202483637 U CN 202483637U CN 2012200764897 U CN2012200764897 U CN 2012200764897U CN 201220076489 U CN201220076489 U CN 201220076489U CN 202483637 U CN202483637 U CN 202483637U
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- semi
- circular plate
- steam turbine
- plate body
- partition board
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Abstract
The utility model discloses a novel turbine diaphragm which comprises a body. The body comprises a first half ring body, two second half ring bodies are fixed on the outer side of the first half ring body, and the radial-direction cross section of the body is Y-shaped. A plurality of reinforcing ribs are arranged between the two second half ring bodies and evenly distributed along the arc surface of the first half ring body. The novel turbine diaphragm is simple in structure, high in strength and not prone to deflection deformation during casting and using processes, thereby guaranteeing normal operation of a turbine.
Description
Technical field
The utility model relates to the steam turbine technology field, relates in particular to a kind of new-type partition board of steam turbine.
Background technique
Dividing plate is requisite component on the steam turbine, and its effect is that cylinder is divided into some air chambers, and is used for fixing stator blade; In the steam turbine working procedure; Pressure between the air chamber may differ greatly, and deflection deformation can take place in the effect that the both sides of dividing plate receive pressure reduction, when the deflection deformation of dividing plate is excessive; Will cause moving vane and its generation friction or collision, have a strong impact on the security of operation of steam turbine.
The diaphragm structure that is applied in the existing technology on the steam turbine is as depicted in figs. 1 and 2, generally is made up of one first semi-circular plate body and two second semi-circular plate bodys, and two second semi-circular plate bodys are fixed in the outside of the first semi-circular plate body; The radial cross section of whole dividing plate is " Y " shape, but this dividing plate is in casting or using process, because the effect of stress; The joint of three-lane road body is easy to crack, and is difficult for coming to light, if in the working environment of HTHP, work long hours; Crackle will be easy to expansion; Make the reduction in strength of dividing plate, the trend that produces deflection deformation heightens, when amount of deformation during greater than moving vane and the gap between it; Friction or collision take place in both, and be very unfavorable to the security of operation of steam turbine.
The model utility content
The utility model technical problem to be solved is: a kind of new-type partition board of steam turbine is provided, and this dividing plate has higher intensity, is not easy to take place deflection deformation, can guarantee the normal operation of steam turbine.
For solving the problems of the technologies described above; The technological scheme of the utility model is: new-type partition board of steam turbine; Comprise plate body, said plate body comprises: the first semi-circular plate body, the outside of the said first semi-circular plate body are fixed with two second semi-circular plate bodys; The radial cross section of said plate body is " Y " shape, is provided with a plurality of stiffening ribs between the two second semi-circular plate bodys.
As a preferred implementation, said stiffening rib is evenly arranged along the arc surface of the said first semi-circular plate body.
After having adopted technique scheme; The beneficial effect of the utility model is: owing between two second semi-circular plate bodys, be provided with a plurality of stiffening ribs; In casting and using process, these stiffening ribs can be eliminated the stress that produces here and concentrate, and avoid cracking; Make dividing plate integral body have higher intensity, guarantee the normal operation of steam turbine.
Because stiffening rib is evenly arranged along the arc surface of the first semi-circular plate body, can guarantee that dividing plate is whole stressed even, is not easy to crack.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further:
Fig. 1 is the structural representation of partition board of steam turbine in the existing technology:
Fig. 2 is the cross-sectional schematic of A-A among Fig. 1;
Fig. 3 is the structural representation of the new-type partition board of steam turbine of the utility model;
Fig. 4 is the cross-sectional schematic at B-B place among Fig. 3;
Among the figure: 1. the first semi-circular plate body; 2. the second semi-circular plate body; 3. stiffening rib.
Embodiment
As shown in Figure 1, be the structural representation of partition board of steam turbine in the existing technology, Fig. 2 is the cross-sectional schematic at A-A place among Fig. 1; This partition board of steam turbine comprises plate body, and said plate body comprises that one first semi-circular plate body 1 and 2, two second semi-circular plate bodys 2 of two second semi-circular plate bodys are fixed in the outside of the said first semi-circular plate body 1; The radial cross section of said plate body is " Y " shape, and the partition board of steam turbine of this structure is in casting or using process, because the effect of stress; The joint of three-lane road body is easy to crack, and is difficult for coming to light, if in the working environment of HTHP, work long hours; Crackle will be easy to expansion; The dividing plate integral intensity is descended, and the trend that produces deflection deformation heightens, when the whole amount of deformation of dividing plate during greater than moving vane and the gap between it; Friction or collision promptly take place in both, and be very unfavorable to the security of operation of steam turbine.
As shown in Figure 3; Structural representation for the new-type partition board of steam turbine of the utility model; Fig. 4 is the cross-sectional schematic at B-B place among Fig. 3, and this partition board of steam turbine has been done on existing technology a bit and improved, and promptly between two second semi-circular plate bodys 2, is provided with a plurality of stiffening ribs 3 (shown in the figure is three); And these stiffening ribs 3 can be arranged at the joint of the said first semi-circular plate body 1 and two second semi-circular plate bodys 2 simultaneously, and the dividing plate integral intensity is improved; On the other hand, said stiffening rib 3 arc surface along the said first semi-circular plate body 1 when being provided with is evenly arranged, can make dividing plate whole stressed even like this, is not easy to crack, and guarantees the normal operation of steam turbine.
This new-type partition board of steam turbine is simple in structure, has higher intensity, in casting and using process, is not easy to take place deflection deformation, thereby guarantees the normal operation of steam turbine.
The utility model is not limited to above-mentioned embodiment, and all are based on the technical conceive of the utility model, and the structural improvement of having done all falls among the protection domain of the utility model.
Claims (4)
1. new-type partition board of steam turbine; Comprise plate body; Said plate body comprises: the first semi-circular plate body; The outside of the said first semi-circular plate body is fixed with two second semi-circular plate bodys, and the radial cross section of said plate body is " Y " shape, it is characterized in that: be provided with a plurality of stiffening ribs between the two second semi-circular plate bodys.
2. new-type partition board of steam turbine as claimed in claim 1 is characterized in that: said stiffening rib is arranged on the joint of the said first semi-circular plate body and two second semi-circular plate bodys.
3. new-type partition board of steam turbine as claimed in claim 2 is characterized in that: said stiffening rib is evenly arranged along the arc surface of the said first semi-circular plate body.
4. new-type partition board of steam turbine as claimed in claim 3 is characterized in that: said stiffening rib is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200764897U CN202483637U (en) | 2012-03-03 | 2012-03-03 | Novel turbine diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200764897U CN202483637U (en) | 2012-03-03 | 2012-03-03 | Novel turbine diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202483637U true CN202483637U (en) | 2012-10-10 |
Family
ID=46958064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200764897U Expired - Fee Related CN202483637U (en) | 2012-03-03 | 2012-03-03 | Novel turbine diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202483637U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109695481A (en) * | 2018-11-27 | 2019-04-30 | 德阳九鼎电气有限公司 | A kind of air deflector for gas turbine exhaust gas cylinder |
-
2012
- 2012-03-03 CN CN2012200764897U patent/CN202483637U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109695481A (en) * | 2018-11-27 | 2019-04-30 | 德阳九鼎电气有限公司 | A kind of air deflector for gas turbine exhaust gas cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20140303 |