CN203347848U - Movable ferrite tooth inner ring type honeycomb seal structure - Google Patents
Movable ferrite tooth inner ring type honeycomb seal structure Download PDFInfo
- Publication number
- CN203347848U CN203347848U CN 201320306799 CN201320306799U CN203347848U CN 203347848 U CN203347848 U CN 203347848U CN 201320306799 CN201320306799 CN 201320306799 CN 201320306799 U CN201320306799 U CN 201320306799U CN 203347848 U CN203347848 U CN 203347848U
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- Prior art keywords
- ferrite
- honeycomb
- ring
- seal structure
- inner ring
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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 - Lifetime
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Abstract
The utility model provides a movable ferrite toot inner ring type honeycomb seal structure. The movable ferrite toot inner ring type honeycomb seal structure comprises a honeycomb packing parent ring. The honeycomb seals are arranged on two sides of the bottom of the honeycomb packing parent ring; the middle part of the bottom of the honeycomb packing parent ring is provided with a groove; and a ferrite inner ring is arranged in the groove via a spring. The movable ferrite toot inner ring type honeycomb seal structure overcomes deficiencies in the prior art and is sealed with a rotor in a small seal gap; and good sealing effect is provided, so that efficiency of a whole steam turbine set is improved.
Description
Technical field
The utility model relates to ring type honeycomb seal structure in a kind of movable ferrite tooth, for vapour (gas) sealing, belongs to the turbomachinery technical field of sealing technology.
Background technique
At present, existing vapour (gas) sealing mostly adopts comb tooth sealing structure, has larger gap between comb tooth sealing structure and rotor, must increase air leakage like this, and sealing effect is poor, and the efficiency of whole steam turbine set is reduced greatly.
The model utility content
The technical problems to be solved in the utility model is to provide little clearance seal between a kind of and rotor, ring type honeycomb seal structure in the movable ferrite tooth of good sealing effect.
In order to solve the problems of the technologies described above, the technical solution of the utility model is to provide ring type honeycomb seal structure in a kind of movable ferrite tooth, comprise Honeycomb steam seal parent ring, honeycomb seal is located at Honeycomb steam seal parent ring two bottom sides, it is characterized in that: described Honeycomb steam seal parent ring is provided with groove in the middle of bottom, and in ferrite, ring is located in groove by spring.
Preferably, the little convex surface bottom of described Honeycomb steam seal parent ring both sides is provided with the adjustment convex.
In a kind of movable ferrite tooth that the utility model provides, the ring type honeycomb seal structure forms perfect adaptation by the little gap throttling of contact-type packing and the throttling of Honeycomb steam seal vortex.In rotor and ferrite, during loop contacts, in ferrite, ring is made a concession rapidly, crossed critical after, ferrite inloop position, realize little clearance seal.Because spring force is less, what in ferrite, the gap of ring and axle can be done is very little, thereby reaches best sealing effect.
The device that the utility model provides has overcome the deficiencies in the prior art, and little clearance seal between rotor, and good sealing effect has improved the efficiency of whole steam turbine set greatly.
The accompanying drawing explanation
Ring type honeycomb seal structure schematic diagram in a kind of movable ferrite tooth 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.
Ring type honeycomb seal structure schematic diagram in a kind of movable ferrite tooth that Fig. 1 provides for the utility model, in described movable ferrite tooth, the ring type honeycomb seal structure comprises Honeycomb steam seal parent ring 1, in the middle of Honeycomb steam seal parent ring 1 bottom, car goes out groove as shown in Figure 2, install ferrite interior bad 4 in groove additional, in ferrite, ring 4 rear portions are with little elastic spring 3, and in the cable body, ring 4 can be made a concession flexible.Because spring 3 elastic force are less, very little (generally the accomplishing 0.15～0.45mm) that in ferrite, the gap of ring 4 and axle can be done, thus play goodish seal action.Honeycomb seal 5 is contained in Honeycomb steam seal parent ring 1 undercut both sides.The convex 2 of adjustment is arranged at the little convex surface bottom of Honeycomb steam seal parent ring 1 both sides.
Because high pressure packing temperature of living in is higher, in ferrite, ring 4 materials adopt ferrite (0Cr15Mo), because ferrite has the advantages that do not harden under high temperature.
In a kind of movable ferrite tooth that the utility model provides, the ring type honeycomb seal structure forms perfect adaptation by the little gap throttling of contact-type packing and the throttling of Honeycomb steam seal vortex.When rotor, with ring 4 in ferrite while contact, in ferrite, ring 4 is made a concession rapidly, crossed critical after, encircle 4 returns in ferrite and realize little clearance seal, thereby reach best sealing effect.
Claims (2)
1. ring type honeycomb seal structure in a movable ferrite tooth, comprise Honeycomb steam seal parent ring (1), honeycomb seal (5) is located at Honeycomb steam seal parent ring (1) two bottom sides, it is characterized in that: described Honeycomb steam seal parent ring (1) is provided with groove in the middle of bottom, and in ferrite, ring (4) is located in groove by spring (3).
2. ring type honeycomb seal structure in a kind of movable ferrite tooth as claimed in claim 1, it is characterized in that: the little convex surface bottom of described Honeycomb steam seal parent ring (1) both sides is provided with adjusts convex (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320306799 CN203347848U (en) | 2013-05-30 | 2013-05-30 | Movable ferrite tooth inner ring type honeycomb seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320306799 CN203347848U (en) | 2013-05-30 | 2013-05-30 | Movable ferrite tooth inner ring type honeycomb seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203347848U true CN203347848U (en) | 2013-12-18 |
Family
ID=49747758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320306799 Expired - Lifetime CN203347848U (en) | 2013-05-30 | 2013-05-30 | Movable ferrite tooth inner ring type honeycomb seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203347848U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106854995A (en) * | 2015-12-09 | 2017-06-16 | 山西国峰煤电有限责任公司 | Coal gangue power generation factory turbine low pressure cylinder gland seal device |
-
2013
- 2013-05-30 CN CN 201320306799 patent/CN203347848U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106854995A (en) * | 2015-12-09 | 2017-06-16 | 山西国峰煤电有限责任公司 | Coal gangue power generation factory turbine low pressure cylinder gland seal device |
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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 |