CN206290294U - A kind of turbine low pressure cylinder combination face seals - Google Patents
A kind of turbine low pressure cylinder combination face seals Download PDFInfo
- Publication number
- CN206290294U CN206290294U CN201621437781.1U CN201621437781U CN206290294U CN 206290294 U CN206290294 U CN 206290294U CN 201621437781 U CN201621437781 U CN 201621437781U CN 206290294 U CN206290294 U CN 206290294U
- Authority
- CN
- China
- Prior art keywords
- groove
- low pressure
- pressure cylinder
- turbine low
- cylinder combination
- 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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Abstract
The utility model discloses a kind of turbine low pressure cylinder combination face seals, including upper flange and lower flange, what is be spaced on the end face that the upper flange is in contact with the lower flange offers multiple first grooves, multiple first grooves are spaced apart along the width of the upper flange, it is corresponding on the end face of the lower flange to be provided with multiple projections, it is described raised to correspond and cooperate with first groove, wherein, the second groove is further respectively had on the side wall of outermost two first grooves, sealing ring is installed in second groove, the sealing ring is abutted against with the corresponding raised side wall.The utility model improves the sealing at upper flange and lower flange faying face, reduces the leakage of gas, so as to reduce the coal consumption of unit.
Description
Technical field
The utility model is related to steam turbine technology field, more particularly to a kind of turbine low pressure cylinder combination face seals.
Background technology
In the prior art, easily leak air problem at the upper flange of turbine low pressure cylinder and lower flange faying face, occurs
The vacuum that steam turbine is will result directly in after gas leakage declines, and then greatly increases the coal consumption of unit, and it virtually increased life
Produce cost.
Utility model content
The utility model is mainly the technical problem solved in the presence of prior art, so as to provide a kind of good airproof performance
Turbine low pressure cylinder combination face seals.
Above-mentioned technical problem of the present utility model is mainly what is be addressed by following technical proposals：
The turbine low pressure cylinder combination face seals that the utility model is provided, including upper flange and lower flange, it is described on
What is be spaced on the end face that flange is in contact with the lower flange offers multiple first grooves, and multiple first grooves are along described
The width of upper flange is spaced apart, corresponding on the end face of the lower flange to be provided with multiple projections, it is described it is raised with it is described
First groove is corresponded and cooperated, wherein, is further respectively had on the side wall of outermost two first grooves
Two grooves, are provided with sealing ring in second groove, the sealing ring is abutted against with the corresponding raised side wall.
Further, the bottom of first groove is additionally provided with sealing gasket.
Further, the sealing gasket and sealing ring are made using fluorubber.
Further, it is described raised with the lower flange integral molding.
Further, the width and depth of first groove are respectively 10mm and 6mm.
The beneficial effects of the utility model are：By multiple raised mutual cooperations with multiple first grooves, it is to upper
Air flue between flange and lower flange has carried out blocking of extending and be segmented, and effectively increases at upper flange and lower flange faying face
Sealing, and by setting the second groove on the side wall of outermost two the first grooves, and using close in the second groove
Seal is engaged with the side wall of projection, this further improves the sealing at upper flange and lower flange faying face, reduces gas
The leakage of body, so as to reduce the coal consumption of unit.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of turbine low pressure cylinder combination face seals of the present utility model.
Fig. 2 is the partial enlarged drawing at the I of Fig. 1.
Specific embodiment
Preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings, so that advantage of the present utility model
Can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear and definite so as to be made to protection domain of the present utility model
Define.
Refering to shown in Fig. 1-2, turbine low pressure cylinder combination face seals of the present utility model, it includes the He of upper flange 1
Lower flange 2, offers multiple first grooves 3 on the end face that upper flange 1 is in contact with lower flange 2, multiple first grooves 3 are along upper method
Blue 1 width is spaced apart, and corresponding on the end face of lower flange 2 to be provided with multiple raised 4, the groove 3 of projection 4 and first is one by one
Correspond to and cooperate, wherein, further respectively have the second groove 5, the second groove on the outermost two side walls of the first groove 3
Sealing ring 6 is installed in 5, side wall of the sealing ring 6 with corresponding raised 4 is abutted against.In the present embodiment, the width of the first groove 3
10mm and 6mm are respectively with depth.And the width and depth of the first groove 3 can also carry out reasonable set according to practical matter.
The utility model passes through the mutual cooperation of multiple raised 4 and multiple first grooves 3, and it is to upper flange 1 and lower flange 2
Between air flue carried out extend and be segmented blocking, effectively increase the sealing at upper flange 1 and the faying face of lower flange 2, and
By setting the second groove 5 on the outermost two side walls of the first groove 3, and using the sealing ring 6 in the second groove 5 with
Raised 4 side wall is engaged, and this further improves the sealing at upper flange 1 and the faying face of lower flange 2, reduces gas
Leakage, so as to reduce the coal consumption of unit.
Preferably, in order to further improve sealing, the bottom of the first groove 3 is additionally provided with sealing gasket 7.Preferably, sealing
Pad 7 and sealing ring 6 are made using fluorubber, and fluorubber is resistant to 275 degree of temperature below and corrosion, can fully meet low pressure
Working environment in cylinder.
Preferably, in order to improve the sealing between raised 4 and lower flange 2, it is to avoid increase gas leakage air flue, raised 4 with
The integral molding of flange 2.
More than, specific embodiment only of the present utility model, but protection domain of the present utility model is not limited thereto,
Any change or replacement expected without creative work, should all cover within protection domain of the present utility model.Therefore,
Protection domain of the present utility model should be determined by the scope of protection defined in the claims.
Claims (5)
1. a kind of turbine low pressure cylinder combination face seals, it is characterised in that including upper flange and lower flange, the upper flange
Offer multiple first grooves on the end face being in contact with the lower flange, multiple first grooves along the upper flange width
Degree direction is spaced apart, corresponding on the end face of the lower flange to be provided with multiple projections, described raised with first groove one
One correspondence simultaneously cooperates, wherein, the second groove is further respectively had on the side wall of outermost two first grooves, it is described
Sealing ring is installed, the sealing ring is abutted against with the corresponding raised side wall in the second groove.
2. turbine low pressure cylinder combination face seals as claimed in claim 1, it is characterised in that the bottom of first groove
Portion is additionally provided with sealing gasket.
3. turbine low pressure cylinder combination face seals as claimed in claim 2, it is characterised in that the sealing gasket and sealing
Circle is made using fluorubber.
4. turbine low pressure cylinder combination face seals as claimed in claim 3, it is characterised in that it is described it is raised with it is described under
Flange integral molding.
5. turbine low pressure cylinder combination face seals as claimed in claim 1, it is characterised in that the width of first groove
Degree and depth are respectively 10mm and 6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621437781.1U CN206290294U (en) | 2016-12-26 | 2016-12-26 | A kind of turbine low pressure cylinder combination face seals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621437781.1U CN206290294U (en) | 2016-12-26 | 2016-12-26 | A kind of turbine low pressure cylinder combination face seals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206290294U true CN206290294U (en) | 2017-06-30 |
Family
ID=59154682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621437781.1U Expired - Fee Related CN206290294U (en) | 2016-12-26 | 2016-12-26 | A kind of turbine low pressure cylinder combination face seals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206290294U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108098252A (en) * | 2017-12-14 | 2018-06-01 | 大唐湘潭发电有限责任公司 | Steam turbine low-pressure inner casing split Deformation Repair technique and structure |
-
2016
- 2016-12-26 CN CN201621437781.1U patent/CN206290294U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108098252A (en) * | 2017-12-14 | 2018-06-01 | 大唐湘潭发电有限责任公司 | Steam turbine low-pressure inner casing split Deformation Repair technique and structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170630 Termination date: 20181226 |