CN206360729U - A kind of inclined honeycomb steam seal - Google Patents
A kind of inclined honeycomb steam seal Download PDFInfo
- Publication number
- CN206360729U CN206360729U CN201621446784.1U CN201621446784U CN206360729U CN 206360729 U CN206360729 U CN 206360729U CN 201621446784 U CN201621446784 U CN 201621446784U CN 206360729 U CN206360729 U CN 206360729U
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- CN
- China
- Prior art keywords
- labyrinth
- steam seal
- labyrinth casing
- slide
- casing
- 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)
Abstract
The utility model discloses a kind of inclined honeycomb steam seal, including adjustment block, labyrinth casing and rotor, the loop configuration that inclined honeycomb steam seal is made up of the labyrinth casing of multiple arcs, slide-in type labyrinth ring is provided with below every section of labyrinth casing, slide-in type labyrinth ring is welded on the compact arranged metal brush filament between two panels clamping plate including two panels clamping plate and one end, slide-in type labyrinth ring is arranged in labyrinth casing by way of inlaying, and the top of slide-in type labyrinth ring is provided with brush ring spring；It is provided with two adjustment blocks in the segmental arc of every section of labyrinth casing, adjustment block is arranged on by screw in the segmental arc of labyrinth casing, labyrinth casing is provided with gland sealing gear and the honeycomb groove for installing cellular band, the mounting surface of honeycomb groove is into the inclined-plane with angle of inclination.The original horizontal bottom of cellular band is changed to inclined-plane by the utility model, can not only increase flow-disturbing effect, and can reduce steam leakage amount.
Description
Technical field
The utility model is related to sealing device technical field, and in particular to a kind of inclined honeycomb steam seal.
Background technology
Turbomachinery is the vaned dynamical type fluid machinery of tool.The common feature of turbomachinery is equipped with the rotor of blade
Make high speed rotary motion, fluid（Gas or liquid）When flowing through passage between blade, the mutual of power is produced between blade and fluid
Effect, so as to realizing that energy is converted.In turbomachinery, due to existing vapour（Gas）Its bottom surface of sealing structure is horizontal, therefore,
Flow-disturbing effect is not good, causes the amount of leakage of steam larger.
Utility model content
The purpose of this utility model is to provide a kind of inclined honeycomb steam seal, and flow-disturbing effect is more preferable and reduces steam leakage amount.
For up to above-mentioned purpose, the technical scheme that the utility model is used is：A kind of inclined honeycomb steam seal is provided, including adjusted
Monoblock, labyrinth casing and rotor, the loop configuration that inclined honeycomb steam seal is made up of the labyrinth casing of multiple arcs, every section of labyrinth casing
Lower section is provided with slide-in type labyrinth ring, and slide-in type labyrinth ring is welded on the close row between two panels clamping plate including two panels clamping plate and one end
The metal brush filament of row, slide-in type labyrinth ring is arranged in labyrinth casing by way of inlaying, and the top of slide-in type labyrinth ring is provided with
Brush ring spring；Two adjustment blocks are provided with the segmental arc of every section of labyrinth casing, adjustment block is arranged on the segmental arc of labyrinth casing by screw
On, labyrinth casing is provided with gland sealing gear and the honeycomb groove for installing cellular band, and the mounting surface of honeycomb groove is into angle of inclination
Inclined-plane.
It is preferred that, two adjustment blocks on labyrinth casing are installed in gland sleeve.
It is preferred that, pad is provided between gland sleeve and adjustment block.
It is preferred that, two adjustment blocks are evenly distributed in the segmental arc of labyrinth casing, and adjustment block is shaped as rectangle or pros
Shape.
It is preferred that, metal brush filament is directly to be not less than through being not less than 80HB, tensile strength for 0.05mm~0.2mm, hardness
800Mpa high-temperature alloy silk, the metal brush filament close-packed arrays, its thickness is not less than 1.5mm.
It is preferred that, the arrangement angle of metal brush filament is 20~60 degree.
In summary, the utility model has advantages below：
1st, the original horizontal bottom of cellular band is changed to inclined-plane by the utility model, can not only increase flow-disturbing effect, and
Steam leakage amount can be reduced.
2nd, by being provided with adjustment block and pad on labyrinth casing, the gap between packing and rotor can be effectively adjusted,
Solve existing packing to be not easy to be connected with gland sleeve installation by "T"-shaped mounting seat, packing can not be adjusted after installation is complete
The problem of packing installation workload caused by whole installation gap is big, debugging is difficult.
3rd, because sealing brush of the present utility model is mainly made up of compact arranged flexible and resistant to elevated temperatures thin B alloy wire,
There is fabulous elasticity.When labyrinth casing and rotor collide mill, brush filament can with elastic yield, this ensure that unit in small―gap suture very
Safe operation under to zero clearance.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model inclined honeycomb steam seal；
Fig. 2 is the front view of the utility model inclined honeycomb steam seal；
Fig. 3 for Fig. 2 A to schematic diagram；
Wherein, 1, gland sleeve；2nd, adjustment block；3rd, labyrinth casing；4th, slide-in type labyrinth ring；5th, rotor；6th, segmental arc；7th, pad；
8th, screw；9th, metal brush filament；10th, cellular band；11st, brush ring spring；12nd, clamping plate；13rd, gland sealing gear.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.
In one embodiment of the present utility model, there is provided a kind of inclined honeycomb steam seal such as shown in Fig. 1 ~ 3, including adjustment
Block 2, labyrinth casing 3 and rotor 5, the loop configuration that inclined honeycomb steam seal is made up of the labyrinth casing 3 of multiple arcs, every section of packing
The lower section of body 3 is provided with slide-in type labyrinth ring 4, slide-in type labyrinth ring 4 includes two panels clamping plate 12 and one end be welded on two panels clamping plate 12 it
Between compact arranged metal brush filament 9, slide-in type labyrinth ring 4 by way of inlaying be arranged on labyrinth casing 3 in, slide-in type packing
The top of ring 4 is provided with brush ring spring 11；Two adjustment blocks 2 are provided with the segmental arc 6 of every section of labyrinth casing 3, adjustment block 2 passes through screw
8 are arranged in the segmental arc of labyrinth casing 3, and labyrinth casing 3 is provided with gland sealing gear 13 and the honeycomb groove for installing cellular band 10, honeycomb
The mounting surface of groove is into the inclined-plane with angle of inclination.
Two adjustment blocks 2 on optimal enforcement example of the present utility model, labyrinth casing 3 are installed in gland sleeve 1；Gland sleeve 1
Pad 7 is provided between adjustment block 2；Two adjustment blocks 2 are evenly distributed in the segmental arc 6 of labyrinth casing 3, and adjustment block 2 is shaped as
Rectangle or square；Metal brush filament 9 is directly to be not less than through being not less than 80HB, tensile strength for 0.05mm~0.2mm, hardness
800Mpa high-temperature alloy silk, the close-packed arrays of metal brush filament 9, its thickness is not less than 1.5mm, the arrangement angle of metal brush filament 9
For 20~60 degree.Two adjustment blocks 1 are arranged on by screw 6 in the segmental arc 9 of labyrinth casing 2, it is to avoid original packing is installed
Packing installation difficulty is caused by mounting seat deformation or dimensional measurement error caused by seat and the elongated setting of labyrinth casing segmental arc 9, and
The problem of gap of adjustment packing and rotor is difficult after packing is installed, passes through two pieces of tune on labyrinth casing 2 when mounted
Monoblock 1 is installed in gland sleeve 7, and between being adjusted between packing and rotor by increasing or decreasing the quantity of pad 5
Gap, it is ensured that the operating efficiency and safety in operation of Steam Turbine.
Two adjustment blocks 2 can control smoothness of the labyrinth casing 3 on the gland sleeve 1, it is to avoid the gland sealing gear 13 of packing with
Interfered between rotor 5, phase mutual friction and influence the service life of packing.
Pad 7 is stainless steel gasket or copper gasket, and the pad 7 that different dimensional thickness are adjusted by increaseing or decreasing can be real
Existing gap adjustment between packing and rotor, and because of the uniform specification of pad 7, reduce the dimensional measurement link during adjustment.
Cellular band 10 is in honeycomb groove, and the mounting surface of honeycomb groove is allowed to and met vapour face into the inclined-plane with angle of inclination
Formed and cellular band 10 is welded after certain angle, such steam enters cells increased flow capacity, along with brush steam seal body 1 is original
Brush filament, preferably realize the effect of flow-disturbing, so as to reduce the leakage of steam, improve unit efficiency.
In order to ensure the brush sealing, flexibility and necessary mechanical strength of metal brush filament 9, the wire layer choosing of brush
With straight through being not less than the high-temperature alloy silk of 80HB, tensile strength not less than 800Mpa for 0.05~0.2mm, hardness, by setting
Angle close-packed arrays are into its thickness is not less than 1.5mm.In order to reduce the rotary resistance to rotor 5, high-temperature alloy silk
Optimal arrangement angle is 20~60 degree.For the purposes of ensureing the stabilization of the spring between packing segmental arc, spring is using resistant to elevated temperatures
Alloy material.
Although being described in detail with reference to accompanying drawing to embodiment of the present utility model, it should not be construed as pair
The restriction of the protection domain of this patent.In the scope described by claims, those skilled in the art are without creative labor
The dynamic various modification and variation that can be made still belong to the protection domain of this patent.
Claims (6)
1. a kind of inclined honeycomb steam seal, it is characterised in that：Including adjustment block（2）And rotor（5）, inclined honeycomb steam seal is by multiple
The labyrinth casing of arc（3）The loop configuration of composition, every section of labyrinth casing（3）Lower section is provided with slide-in type labyrinth ring（4）, the slide-in type
Labyrinth ring（4）Including two panels clamping plate（12）Two panels clamping plate is welded on one end（12）Between compact arranged metal brush filament（9）,
Slide-in type labyrinth ring（4）Labyrinth casing is arranged on by way of inlaying（3）It is interior, the slide-in type labyrinth ring（4）Top be provided with
Brush ring spring（11）；Every section of labyrinth casing（3）Segmental arc（6）On be provided with two adjustment blocks（2）, the adjustment block（2）Pass through spiral shell
Nail（8）Installed in labyrinth casing（3）Segmental arc on, the labyrinth casing（3）It is provided with gland sealing gear（13）And for installing cellular band
（10）Honeycomb groove, the mounting surface of the honeycomb groove is into the inclined-plane with angle of inclination.
2. inclined honeycomb steam seal as claimed in claim 1, it is characterised in that：The labyrinth casing（3）On two adjustment blocks（2）
It is installed on gland sleeve（1）It is interior.
3. inclined honeycomb steam seal as claimed in claim 2, it is characterised in that：The gland sleeve（1）With adjustment block（2）Between set
There is pad（7）.
4. inclined honeycomb steam seal as claimed in claim 2, it is characterised in that：Described two adjustment blocks（2）It is evenly distributed on vapour
In the segmental arc for sealing body, adjustment block（2）Be shaped as rectangle or square.
5. inclined honeycomb steam seal as claimed in claim 1, it is characterised in that：The metal brush filament（9）For directly through for 0.05mm
~0.2mm, hardness are not less than the high-temperature alloy silk of 80HB, tensile strength not less than 800Mpa, and the metal brush filament is closely arranged
Row, its thickness is not less than 1.5mm.
6. inclined honeycomb steam seal as claimed in claim 1, it is characterised in that：The metal brush filament（9）Arrangement angle be 20
~60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621446784.1U CN206360729U (en) | 2016-12-27 | 2016-12-27 | A kind of inclined honeycomb steam seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621446784.1U CN206360729U (en) | 2016-12-27 | 2016-12-27 | A kind of inclined honeycomb steam seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206360729U true CN206360729U (en) | 2017-07-28 |
Family
ID=59376653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621446784.1U Expired - Fee Related CN206360729U (en) | 2016-12-27 | 2016-12-27 | A kind of inclined honeycomb steam seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206360729U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488392A (en) * | 2019-01-04 | 2019-03-19 | 安徽誉特双节能技术有限公司 | A kind of modified air seal set of steam turbine |
| CN109538303A (en) * | 2019-01-04 | 2019-03-29 | 安徽誉特双节能技术有限公司 | A kind of through-flow structure of modified steam turbine |
-
2016
- 2016-12-27 CN CN201621446784.1U patent/CN206360729U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488392A (en) * | 2019-01-04 | 2019-03-19 | 安徽誉特双节能技术有限公司 | A kind of modified air seal set of steam turbine |
| CN109538303A (en) * | 2019-01-04 | 2019-03-29 | 安徽誉特双节能技术有限公司 | A kind of through-flow structure of modified steam turbine |
| CN109488392B (en) * | 2019-01-04 | 2024-02-09 | 安徽誉特双节能技术有限公司 | Improved gas seal device of steam turbine |
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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: 20170728 Termination date: 20201227 |