CN2667166Y - Common celluar steam seal - Google Patents
Common celluar steam seal Download PDFInfo
- Publication number
- CN2667166Y CN2667166Y CN 200320131355 CN200320131355U CN2667166Y CN 2667166 Y CN2667166 Y CN 2667166Y CN 200320131355 CN200320131355 CN 200320131355 CN 200320131355 U CN200320131355 U CN 200320131355U CN 2667166 Y CN2667166 Y CN 2667166Y
- Authority
- CN
- China
- Prior art keywords
- steam
- utility
- sphragis
- model
- sealing
- 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 - Fee Related
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- Turbine Rotor Nozzle Sealing (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model relates to an universal honeycomb seal, essentially consisting of a steam sphragis 1 and a honeycomb belt 2. A group of sealing gears 3 are arranged at the lower part of the steam sphragis 1, and the honeycomb belt 2 is arranged in each of the sealing gears 3. The honeycomb belt 2 is made from alloy materials into the positive hexagonal mesh form, brazes and inlays to the body of steam sphragis. The utility model adopts six pieces of steam sphragis 1 into a whole sealing ring, and is suitable to various type of steam wheel. The excellent sealing ability effectively improves the working efficiency of working group, therefore, the utility model has a wide prospect for popularization.
Description
Technical field the utility model belongs to a kind of general Honeycomb steam seal that steam turbine is used
Background technique
Packing is one of indispensable device on the steam turbine.Convenient for installation and maintenance, whole labyrinth ring forms by the assembly of polylith packing lobe edge.Be equipped with the alternate tooth of height in the groove of traditional packing inside, cooperate, when sealing tooth by per pass, will produce certain resistance, thereby produce throttle effect owing to gas with the height arcuate slots of axle is staggered.Traditional packing sealing effect is relatively poor, the heavy losses energy; The leaking in a large number and very easily cause the emulsification of bearing housing oil of gland steam; Influenced by throttle effect, form from the exciting effect easily, cause the vibration of unit vapour crack; Reduced the whole work efficiency of steam turbine.For a long time, people are exploring the effective way that solves traditional packing deficiency always.
The summary of the invention the purpose of this utility model is in order to overcome the shortcoming and defect that traditional packing can exist, therefore to have designed a kind of good sealing effect, can prevent that interior leakage of air and gland steam from leaking outside; Can improve the general Honeycomb steam seal of unit efficiency.
The utility model is realized as follows:
General Honeycomb steam seal mainly is made up of packing lobe 1 and cellular band 2, is provided with one group of sealing tooth 3 in the bottom of packing lobe 1, is provided with cellular band 2 between each sealing tooth 3.Cellular band 2 is that to adopt alloy material to be made for regular hexagon latticed.
The utility model has the advantages that: significant sealing affection, reduce the vibration of energy loss and unit vapour crack, improved the unit working efficiency.
Description of drawings Fig. 1 is a structural representation of the present utility model
Fig. 2 is an A-A cross-sectional schematic of the present utility model.
Embodiment is introduced embodiment of the present utility model with reference to the accompanying drawings:
General Honeycomb steam seal, the utility model are to adopt six packing lobes, 1 combination labyrinth ring in aggregates, and the shape of packing lobe 1 can design according to actual needs.Be provided with four gland sealing gears 3 on the packing lobe, be provided with three cellular bands 2 between four gland sealing gears 3, the quantity of cellular band 2 appropriateness as required increases or reduces.Cellular band 2 is that the latticed and soldering of the orthohexagonal that adopts alloy material to make is mounted on the body of packing lobe 1.The utility model is all applicable for the steam turbine of various models, owing to its superior sealability, has improved the working efficiency of unit effectively, has popularizing prospect widely.
Claims (2)
1, general Honeycomb steam seal mainly is made up of packing lobe (1) and cellular band (2), it is characterized in that the bottom of packing lobe (1) is provided with one group of sealing tooth (3), is provided with cellular band (2) between each sealing tooth (3).
2, general Honeycomb steam seal as claimed in claim 1 is characterized in that said cellular band (2) is that to adopt alloy material to be made for regular hexagon latticed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320131355 CN2667166Y (en) | 2003-12-30 | 2003-12-30 | Common celluar steam seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320131355 CN2667166Y (en) | 2003-12-30 | 2003-12-30 | Common celluar steam seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2667166Y true CN2667166Y (en) | 2004-12-29 |
Family
ID=34350189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320131355 Expired - Fee Related CN2667166Y (en) | 2003-12-30 | 2003-12-30 | Common celluar steam seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2667166Y (en) |
-
2003
- 2003-12-30 CN CN 200320131355 patent/CN2667166Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |