CN209053640U - A kind of Double tooth-tip F tooth packing - Google Patents
A kind of Double tooth-tip F tooth packing Download PDFInfo
- Publication number
- CN209053640U CN209053640U CN201821378544.1U CN201821378544U CN209053640U CN 209053640 U CN209053640 U CN 209053640U CN 201821378544 U CN201821378544 U CN 201821378544U CN 209053640 U CN209053640 U CN 209053640U
- Authority
- CN
- China
- Prior art keywords
- packing
- tooth
- ontology
- tip
- long
- 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
Links
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
A kind of Double tooth-tip F tooth packing, it is related to a kind of packing part technical field of turbine rotor, and in particular to a kind of Double tooth-tip F tooth packing.It includes packing ontology, labyrinth ring, packing long tooth, packing short tooth, annular groove, elastic circular ring, packing ontology is ring component, the upper end of packing ontology is equipped with annular groove, the inside of packing ontology is equipped with elastic circular ring, the bottom end of packing ontology is equipped with labyrinth ring, the bottom of labyrinth ring is equipped with three groups of packing long tooths, and every group of packing long tooth is correspondingly provided with a packing short tooth, and the right side of every group of packing long tooth is arranged in packing short tooth.After adopting the above technical scheme, the utility model has the beneficial effect that its structure is simple, stablizes, cost is manufactured in reduction, improves sealing effect, it is not easy to which gas leakage causes equipment damage, and improves service life, and reduces maintenance cost.
Description
Technical field
The utility model relates to a kind of packing part technical fields of turbine rotor, and in particular to a kind of Double tooth-tip F tooth vapour
Envelope.
Background technique
Packing is installed between the dynamic and static part of steam turbine, reduces or prevents steam to leak and inlet side air is leak into
Device, its effect have: one, steam turbine has stator and rotor two large divisions, at work rotor high speed rotation, and stator is fixed,
Therefore certain gap must be kept between rotor and stator, do not make phase mutual friction, when steam flows through each level work of steam turbine, pressure
Power, temperature decline step by step, and in partition two sides, there is pressure differences, and when movable vane piece has degree of reaction, there is also pressures before and after movable vane piece
Difference, steam in addition to the overwhelming majority from guide vane, movable vane channel in flow through acting other than, sub-fraction can be flowed through from various gaps and
It does not do work, becomes a kind of loss, reduce the efficiency of unit；Two, rotor must also be pierced by cylinder, be supported on bearing, herein
Also must be there are gap, for the front end at high-pressure cylinder both ends and intermediate cylinder, the steam pressure in cylinder is greater than extraneous big
Atmospheric pressure will have steam to spill herein, reduce unit efficiency, and cause partial coagulation water loss, in the exhaust of intermediate pressure cylinder
End and the both ends of low pressure (LP) cylinder are because the steam pressure in cylinder is lower than extraneous atmospheric pressure, in the gap that main shaft is pierced by cylinder,
There will be air to leak into cylinder, since air cannot condense in condenser, to reduce vacuum degree, reduce steam and do
Function power；Three, in order to reduce the gas leakage in above-mentioned gap everywhere, guarantee steam turbine normal safe operation again, spy is provided with each
Kind packing, these packings can be divided into flow passage component packing, diaphragm gland and shaft end gland seal three categories.
Gland seal structure currently on the market is complicated, manufactures higher cost, and sealing effect is poor, is easy gas leakage to equipment
It damages, and service life is shorter, needs regular replacement, maintenance cost is higher.
Utility model content
The purpose of this utility model is that it is in view of the drawbacks of the prior art and insufficient, a kind of Double tooth-tip F tooth packing is provided, it
Structure is simple, stablizes, and cost is manufactured in reduction, improves sealing effect, it is not easy to which gas leakage causes equipment damage, and raising makes
With the service life, maintenance cost is reduced.
To achieve the above object, the utility model is using following technical scheme: it include packing ontology 1, labyrinth ring 2,
Packing long tooth 3, packing short tooth 4, annular groove 5, elastic circular ring 6, packing ontology 1 are ring component, and the upper end of packing ontology 1 is set
There is annular groove 5, the inside of packing ontology 1 is equipped with elastic circular ring 6, and the bottom end of packing ontology 1 is equipped with labyrinth ring 2, labyrinth ring 2
Bottom is equipped with three groups of packing long tooths 3, and every group of packing long tooth 3 is correspondingly provided with a packing short tooth 4, and the setting of packing short tooth 4 exists
The right side of every group of packing long tooth 3.
Further, the bottom end of the packing long tooth 3 and packing short tooth 4 is designed with bidentate 7.
Further, the quantity containing packing long tooth 3 is two in every group of packing long tooth 3.
Further, the top two sides of the packing ontology 1 are respectively provided with a wedge angle 8.
Further, the corner of the packing ontology 1 is equipped with chamfering 9.
Further, the lateral wall of the packing ontology 1 is equipped with several notches 10.
After adopting the above technical scheme, the utility model has the beneficial effect that its structure is simple, stablizes, reduction is manufactured
Cost improves sealing effect, it is not easy to which gas leakage causes equipment damage, and improves service life, and reduces maintenance cost.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram that packing ontology 1 is axial in the utility model.
Description of symbols: packing ontology 1, labyrinth ring 2, packing long tooth 3, packing short tooth 4, annular groove 5, elastic circular ring
6, bidentate 7, wedge angle 8, chamfering 9, notch 10, turbine rotor A.
Specific embodiment
Referring to shown in Fig. 1-Fig. 2, present embodiment the technical solution adopted is that: it includes packing ontology 1, labyrinth ring
2, packing long tooth 3, packing short tooth 4, annular groove 5, elastic circular ring 6, packing ontology 1 are ring component, the upper end of packing ontology 1
Equipped with annular groove 5, the inside of packing ontology 1 is equipped with elastic circular ring 6, and the bottom end of packing ontology 1 is equipped with labyrinth ring 2, labyrinth ring 2
Bottom be equipped with three groups of packing long tooths 3, every group of packing long tooth 3 is correspondingly provided with a packing short tooth 4, and packing short tooth 4 is arranged
On the right side of every group of packing long tooth 3.
The bottom end of the packing long tooth 3 and packing short tooth 4 is designed with bidentate 7.
The quantity containing packing long tooth 3 is two in every group of packing long tooth 3.
The top two sides of the packing ontology 1 are respectively provided with a wedge angle 8.
The corner of the packing ontology 1 is equipped with chamfering 9.
The lateral wall of the packing ontology 1 is equipped with several notches 10.
Working principle of the utility model is: it is ring component that its structure, which is packing ontology 1, the upper end of packing ontology 1 is set
There is annular groove 5, the inside of packing ontology 1 is equipped with elastic circular ring 6, and the bottom end of packing ontology 1 is equipped with labyrinth ring 2, labyrinth ring 2
Bottom is equipped with three groups of packing long tooths 3, and every group of packing long tooth 3 is correspondingly provided with a packing short tooth 4, and the setting of packing short tooth 4 exists
The locations of structures of the right side of every group of packing long tooth 3, packing long tooth 3 and packing short tooth 4 is in " F " structure, and packing long tooth 3 and packing are short
Tooth 4 is closely bonded with turbine rotor A, and the bottom end of packing long tooth 3 and packing short tooth 4 is correspondingly provided with bidentate 7, number of teeth phase
It should increase, reduce the peripheral annular area of labyrinth clearance, stop steam leakage or air to leak into steam turbine, improve air-tightness,
And it is equipped with elastic circular ring 6 in the inside of packing ontology 1, increases the toughness of packing ontology 1, it is not easy to damaged, improve and use the longevity
Life.
After adopting the above technical scheme, the utility model has the beneficial effect that its structure is simple, stablizes, reduction is manufactured
Cost improves sealing effect, it is not easy to which gas leakage causes equipment damage, and improves service life, and reduces maintenance cost.
The above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, those of ordinary skill in the art couple
The other modifications or equivalent replacement that the technical solution of the utility model is made, without departing from technical solutions of the utility model
Spirit and scope should all cover in the scope of the claims of the utility model.
Claims (6)
1. a kind of Double tooth-tip F tooth packing, it is characterised in that: it includes packing ontology (1), labyrinth ring (2), packing long tooth (3), vapour
Short tooth (4), annular groove (5), elastic circular ring (6) are sealed, packing ontology (1) is ring component, and the upper end of packing ontology (1) is equipped with
The inside of annular groove (5), packing ontology (1) is equipped with elastic circular ring (6), and the bottom end of packing ontology (1) is equipped with labyrinth ring (2),
The bottom of labyrinth ring (2) is equipped with three groups of packing long tooths (3), and every group of packing long tooth (3) is correspondingly provided with a packing short tooth (4), and
And packing short tooth (4) is arranged on the right side of every group of packing long tooth (3).
2. a kind of Double tooth-tip F tooth packing according to claim 1, it is characterised in that: the packing long tooth (3) and packing are short
The bottom end of tooth (4) is designed with bidentate (7).
3. a kind of Double tooth-tip F tooth packing according to claim 1, it is characterised in that: every group of packing long tooth (3) includes
The quantity for having packing long tooth (3) is two.
4. a kind of Double tooth-tip F tooth packing according to claim 1, it is characterised in that: the top two of the packing ontology (1)
Side is respectively provided with a wedge angle (8).
5. a kind of Double tooth-tip F tooth packing according to claim 1, it is characterised in that: the corner of the packing ontology (1) is set
There are chamfering (9).
6. a kind of Double tooth-tip F tooth packing according to claim 1, it is characterised in that: the lateral wall of the packing ontology (1)
Equipped with several notches (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821378544.1U CN209053640U (en) | 2018-08-27 | 2018-08-27 | A kind of Double tooth-tip F tooth packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821378544.1U CN209053640U (en) | 2018-08-27 | 2018-08-27 | A kind of Double tooth-tip F tooth packing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209053640U true CN209053640U (en) | 2019-07-02 |
Family
ID=67047857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821378544.1U Expired - Fee Related CN209053640U (en) | 2018-08-27 | 2018-08-27 | A kind of Double tooth-tip F tooth packing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209053640U (en) |
-
2018
- 2018-08-27 CN CN201821378544.1U patent/CN209053640U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209959492U (en) | Sealing structure of steam centrifugal compressor | |
| CN108915787A (en) | A kind of steam turbine helixseal structure | |
| CN206738156U (en) | A kind of new No leakage roots blower sealing device | |
| CN209053640U (en) | A kind of Double tooth-tip F tooth packing | |
| RU2622451C2 (en) | Turbomachine, turbomachine unit containing cover, working wheel and brush seal and method of improving seal | |
| CN2534428Y (en) | Single-row staggered fluid dynamic pressure groove upstream pumping mechanical seal | |
| CN103277146A (en) | Symmetrical lateral tooth steam sealing structure | |
| CN214499462U (en) | High-pressure nitrogen multistage centrifugal blower | |
| CN204609955U (en) | A kind of Multi-tooth corrugated sheet elastic sealing device | |
| CN108533757A (en) | A kind of labyrinth seal structure that can increase chamber dissipation | |
| CN210178423U (en) | Self-sealing gland seal of steam turbine | |
| CN209539554U (en) | A kind of oil free screw compressor support end structure | |
| CN207647551U (en) | A kind of ORC expanding machines spindle seal system | |
| CN203384379U (en) | Air-flowing type shaft sealing device | |
| CN201386690Y (en) | Sealing device for vertical condensate pump | |
| CN202520958U (en) | Gas sealing system for hydrogenerator | |
| CN220015274U (en) | Side tooth steam seal with vortex bottom cavity | |
| CN207728398U (en) | Reverse pressurization sealing gland | |
| CN201025075Y (en) | Low diameter gas sealer for steamship engine | |
| CN201953418U (en) | Composite toothed steam seal | |
| CN214366233U (en) | Vacuum system for generator sealing oil | |
| CN110056513A (en) | Steam Compressor sealing structure | |
| CN208431193U (en) | Pump uses sealing element | |
| CN208564648U (en) | A kind of Turbine Steam sealing assembly | |
| CN104791253B (en) | Multistage centrifugal pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190702 Termination date: 20190827 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |