CN202510171U - Novel steam-seal split seal structure - Google Patents
Novel steam-seal split seal structure Download PDFInfo
- Publication number
- CN202510171U CN202510171U CN2012201062444U CN201220106244U CN202510171U CN 202510171 U CN202510171 U CN 202510171U CN 2012201062444 U CN2012201062444 U CN 2012201062444U CN 201220106244 U CN201220106244 U CN 201220106244U CN 202510171 U CN202510171 U CN 202510171U
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- Prior art keywords
- seal
- steam
- split
- novel
- packing
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- 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 - Fee Related
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- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model relates to a novel steam-seal split seal structure, which is composed of a steam-seal split and a seal key, wherein the steam-seal split is connected with the seal key in a sealing mode. The graphite ribbon and hold-down ring structure in the traditional steam-seal split seal structure is changed, and the steam-seal split is designed into an integrated structure and fixedly connected with the seal key through a bolt. According to the novel steam-seal split seal structure, the problem that steam of a steam turbine overflows from the front end and the rear end of a rotor is effectively solved, and the good gas tightness of the steam-seal split is ensured. The novel steam-seal split seal structure has the advantages of novel idea, simple structure, firmness, reliability, low cost, long service life, convenience in assembly, strong practicality and the like.
Description
Technical field
The utility model relates to a kind of novel packing mid-separate surface seal formula structure, belongs to mechanical field.
Background technique
Steam turbine is a kind of heat energy and just necessary sealability that guarantees the rear and front end of steam turbine of pressure that runs up and will make full use of steam.The sealing means of packing split is the flexible graphite belt sealing before and after traditional steam turbine, and concrete mode is to compress with the graphite tape of the periphery winding flexible graphite stuffing formation of packing and with hold-down ring.The shortcoming of this sealing means is complex process, and cost is high, the packing performance is difficult to guarantee after long-time running.
The model utility content
To the deficiency of above-mentioned technology, the utility model provides a kind of packing split good air-tightness and simple in structure that has, novel packing mid-separate surface seal structure solid and reliable, easy to assembly.
The purpose of the utility model realizes through following organization plan:
A kind of novel packing mid-separate surface seal structure is made up of labyrinth casing split and seal bond; Wherein, labyrinth casing split and seal bond are sealedly and fixedly connected through screw.
The utility model has changed the structure of graphite tape and hold-down ring in traditional packing mid-separate surface seal formula structure, and the packing split is designed to integral structure, is fixedly connected with seal bond through bolt.Use the utility model to efficiently solve the rear and front end overflow problem of the steam of steam turbine, guaranteed the problem of good air-tightness of the split of packing from rotor.Has the thinking novelty, simple in structure, solid and reliable, with low cost, long service life, advantage such as easy to assembly, practical.
Description of drawings
Fig. 1 is the packing mid-separate surface seal formula structural representation of the utility model;
Fig. 2 is traditional graphite belt packing mid-separate surface seal structural representation.
Wherein: 1, labyrinth casing split, 2, seal bond, 3, hold-down ring, 4, graphite tape, 5, traditional labyrinth casing split.
Embodiment
Embodiment:
Below in conjunction with accompanying drawing and embodiment the utility model is described further:
As shown in Figure 1, a kind of novel packing mid-separate surface seal structure is made up of labyrinth casing split 1, seal bond 2; Wherein, labyrinth casing split 1 and seal bond 2 are sealedly and fixedly connected through screw.Traditional traditional packing mid-separate surface seal formula structure is as shown in Figure 2, is to be made up of graphite tape 4, traditional packing split 5 and hold-down ring 3.Use the utility model, can effectively solve the rear and front end overflow problem of the steam of steam turbine, guarantee the good air-tightness of the split of packing from rotor, and simple in structure, solid and reliable, easy to assembly.
Claims (1)
1. a novel packing mid-separate surface seal structure is characterized in that, be made up of labyrinth casing split, seal bond, wherein, labyrinth casing split and seal bond are sealedly and fixedly connected through screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201062444U CN202510171U (en) | 2012-03-20 | 2012-03-20 | Novel steam-seal split seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201062444U CN202510171U (en) | 2012-03-20 | 2012-03-20 | Novel steam-seal split seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202510171U true CN202510171U (en) | 2012-10-31 |
Family
ID=47062663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201062444U Expired - Fee Related CN202510171U (en) | 2012-03-20 | 2012-03-20 | Novel steam-seal split seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202510171U (en) |
-
2012
- 2012-03-20 CN CN2012201062444U patent/CN202510171U/en not_active Expired - Fee Related
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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: 20121031 Termination date: 20210320 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |