CN203347850U - Adjustable sealing structure for ferrite swing teeth - Google Patents
Adjustable sealing structure for ferrite swing teeth Download PDFInfo
- Publication number
- CN203347850U CN203347850U CN 201320308203 CN201320308203U CN203347850U CN 203347850 U CN203347850 U CN 203347850U CN 201320308203 CN201320308203 CN 201320308203 CN 201320308203 U CN201320308203 U CN 201320308203U CN 203347850 U CN203347850 U CN 203347850U
- Authority
- CN
- China
- Prior art keywords
- ferrite
- sealing structure
- adjustable sealing
- teeth
- swing
- 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
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model provides an adjustable sealing structure for ferrite swing teeth. The adjustable sealing structure comprises a gland casing. Two end parts of a gland casing segmental arc are respectively provided with a small convex. The adjustable sealing structure for the ferrite swing tooth is characterized in that the middle part of the gland casing lower part is provided with a groove; the ferrite swing tooth is arranged in the groove via a spring; the bottom of the gland casing is provided with the ferrite teeth; and the lower part of the small convex surface is provided with an adjusting boss. The adjustable sealing structure for ferrite swing teeth overcomes deficiencies of the prior art and can accurately enable radial clearance to meet a precise operating requirement in a fast and simple way, thereby improving vacuum leakage resistance and safety of a set.
Description
Technical field
The utility model relates to a kind of ferrite movable teeth sealing configuration with adjustable function, for vapour (gas) sealing, belongs to the turbomachinery technical field of sealing technology.
Background technique
At present, between the ferrite movable teeth sealing configuration of existing vapour (gas) sealing and rotor, there is larger gap, must increase air leakage like this, thereby unit efficiency is reduced.
In installation and maintenance process, if find that rotor and labyrinth clearance can not reach usage requirement, by the whole segmental arc of little convex surface is processed, the adjustment workload is large, and process inhomogeneously, precision is very low, finally causes sealing surface can not accurately reach usage requirement, thereby cause the leakage loss of medium to increase, and the Security of impact use.
Simultaneously, the material of labyrinth seal is harder, and easy and rotor rubs, the damage rotor.
The model utility content
The technical problems to be solved in the utility model is to provide a kind of vapour (gas) of can adjusting accurate, simple and direct, rapidly and seals, and the ferrite movable teeth sealing configuration of Security and good airproof performance.
In order to solve the problems of the technologies described above, the technical solution of the utility model is to provide a kind of ferrite movable teeth sealing configuration with adjustable function, comprise labyrinth casing, the place, two ends of labyrinth casing segmental arc is provided with little back of the body arc, it is characterized in that: be provided with groove in the middle of described labyrinth casing bottom, the ferrite movable teeth is located in groove by spring; Described labyrinth casing bottom is provided with the ferrite tooth; Described little convex surface bottom is provided with the adjustment convex.
The utility model provides a kind of ferrite movable teeth sealing configuration with adjustable function is in maintenance with while installing, can carry out accurate, simple and direct, processing fast to adjusting convex, thereby the radial clearance that makes sealing surface reaches accurate usage requirement, guarantee the Security of using.Ferrite material has the soft characteristics that are difficult for hardening of matter, avoids and friction rotor, damages rotor, and has improved the vacuum tightness of unit.
The device that the utility model provides has overcome the deficiencies in the prior art, can make accurate, simple and direct, rapidly the radial clearance of sealing surface reach accurate usage requirement, has improved vacuum tightness and the Security of unit.
The accompanying drawing explanation
A kind of ferrite movable teeth sealed structural representation with adjustable function that Fig. 1 provides for the utility model;
The A-A sectional view that Fig. 2 is Fig. 1.
Embodiment
For the utility model is become apparent, hereby with a preferred embodiment, and coordinate accompanying drawing to be described in detail below.
A kind of ferrite movable teeth sealed structural representation with adjustable function that Fig. 1 provides for the utility model, the A-A sectional view that Fig. 2 is Fig. 1, described a kind of ferrite movable teeth sealing configuration with adjustable function comprises labyrinth casing 1, go out groove at labyrinth casing 1 intermediate portion car, ferrite movable teeth 3 is embedded in groove, little elastic spring 2 is equipped with at ferrite movable teeth 3 rear portions, and little spring 2 use screws 5 are fixed on ferrite movable teeth 3, to realize the yielding of ferrite movable teeth 3.Go out conduit at labyrinth casing 1 bottom car, ferrite tooth 4 is embedded in conduit, and by the method for anchor point, ferrite tooth 4 is fixed in conduit.
Ferrite (0Cr15Mo) material has the soft characteristics that are difficult for hardening of matter, avoids and rotor 8 frictions, damages rotor, and has improved the vacuum tightness of unit.Ferrite movable teeth packing adaptive temperature is high, and in rotor bows such as gap bridge, equalizing piston, in large or start-up course, amplitude, than large part, has splendid Security and sealing.
There is little back of the body arc 7 at place, two ends in labyrinth casing 1 segmental arc, changes the thickness of little back of the body arc 7, forms two adjustment convexes 6 that can be used for adjusting vapour (gas) sealing radial clearance.
When the ferrite movable teeth overhauled and installation seals for vapour (gas) seals, can carry out accurate, simple and direct, processing fast to adjustment convex 6, thereby make the radial clearance of sealing surface reach standard-required like this.
Claims (1)
1. the ferrite movable teeth sealing configuration with adjustable function, comprise labyrinth casing (1), the place, two ends of labyrinth casing (1) segmental arc is provided with little back of the body arc (7), it is characterized in that: be provided with groove in the middle of described labyrinth casing (1) bottom, ferrite movable teeth (3) is located in groove by spring (2); Described labyrinth casing (1) bottom is provided with ferrite tooth (4); Described little convex surface (2) bottom is provided with adjusts convex (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320308203 CN203347850U (en) | 2013-05-30 | 2013-05-30 | Adjustable sealing structure for ferrite swing teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320308203 CN203347850U (en) | 2013-05-30 | 2013-05-30 | Adjustable sealing structure for ferrite swing teeth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203347850U true CN203347850U (en) | 2013-12-18 |
Family
ID=49747760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320308203 Expired - Lifetime CN203347850U (en) | 2013-05-30 | 2013-05-30 | Adjustable sealing structure for ferrite swing teeth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203347850U (en) |
-
2013
- 2013-05-30 CN CN 201320308203 patent/CN203347850U/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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131218 |
|
| CX01 | Expiry of patent term |