CN201144715Y - Inclined honeycomb seal - Google Patents
Inclined honeycomb seal Download PDFInfo
- Publication number
- CN201144715Y CN201144715Y CNU2007201786888U CN200720178688U CN201144715Y CN 201144715 Y CN201144715 Y CN 201144715Y CN U2007201786888 U CNU2007201786888 U CN U2007201786888U CN 200720178688 U CN200720178688 U CN 200720178688U CN 201144715 Y CN201144715 Y CN 201144715Y
- Authority
- CN
- China
- Prior art keywords
- steam
- sealing
- honeycomb seal
- turbine unit
- honeycomb
- 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
- 230000001413 cellular effect Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model discloses an oblique honeycomb seal, which is applied to the steam seal system of a steam turbine unit for increasing steam resistant effect and improving the stage efficiency of the steam turbine unit. The structure of the novel steam turbine unit interstage sealing and an axial sealing device (patent number: ZL99254365.7) improves the existing sealing technique, which has the technique proposal that the inner surface of a steam sealing ring (1) is sectionally turned into a plurality of annular surfaces with an oblique angle Beta with the self axes of the steam sealing ring (1), and Beta is larger than 0 degree and less than 20 degrees; subsequently, a height equivalent honeycomb (2) is brazed on the annular inner surfaces of the sections of the steam sealing ring (1) to form the oblique honeycomb seal.
Description
Technical field
Under this patent technical field be the steam tight field of power station steam turbine group.
Background technique
The present invention is at existing utility model patent---the sealing of novel steam unit inter-stage and the gland seal device (patent No.: the ZL99254365.7) innovation on the basis.
Summary of the invention
Problem to be solved by this invention is to improve the effect of obturaging of honeycomb sealing.The first, the used cellular band 2 of this patent is by regularly arranged the forming of the identical honeycomb hole of a large amount of physical dimensions, and as shown in Figure 1, each honeycomb hole all is regular hexahedron core lattice.The core lattice are that 0.05 to 0.10mm high-temperature alloy paper tinsel is made by thickness.The second, as shown in Figure 2, become plurality of sections and its axially to acutangulate the arc surface of β the axial arc surface partial design of labyrinth ring 1 internal surface, and 0 °＜β＜20 °.The 3rd, contour cellular band 2 is brazed in the internal surface of labyrinth ring 1, promptly constituted the tilting honeycomb seal.
Figure of description
Fig. 1 is cellular band figure.
Fig. 2 is the design sketch that cellular band is brazed in labyrinth ring.
Embodiment
Claims (1)
- The present invention is a kind of tilting honeycomb seal, so-called tilting honeycomb seal, its technical characteristics is, the axial arc surface partial design of the internal surface of labyrinth ring (1) becomes plurality of sections and its axially to acutangulate β, and 0 °＜β＜20 ° arc surface, with above-mentioned contour cellular band (2) step braying in the internal surface of labyrinth ring (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201786888U CN201144715Y (en) | 2007-09-19 | 2007-09-19 | Inclined honeycomb seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201786888U CN201144715Y (en) | 2007-09-19 | 2007-09-19 | Inclined honeycomb seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201144715Y true CN201144715Y (en) | 2008-11-05 |
Family
ID=40081591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201786888U Expired - Lifetime CN201144715Y (en) | 2007-09-19 | 2007-09-19 | Inclined honeycomb seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201144715Y (en) |
-
2007
- 2007-09-19 CN CNU2007201786888U patent/CN201144715Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090116 Address after: No. 4299, capital Road, Shanghai, Minhang District: 201108 Co-patentee after: Fan Shuming Patentee after: Shanghai Dandy Electric Power Technology Co., Ltd. Address before: No. 4299, capital Road, Shanghai, Minhang District: 201108 Co-patentee before: Fan Shuming Patentee before: Model literature |
|
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI DANDI ELECTRIC POWER TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: FAN WENXIAN Effective date: 20090116 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090410 Address after: No. 4299, capital Road, Shanghai, Minhang District: 201108 Patentee after: Dandi Power Technological Co., Ltd., Shanghai Address before: No. 4299, capital Road, Shanghai, Minhang District: 201108 Co-patentee before: Fan Shuming Patentee before: Shanghai Dandy Electric Power Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081105 |