CN203614230U - Oil seal device for rotor of gas turbine - Google Patents
Oil seal device for rotor of gas turbine Download PDFInfo
- Publication number
- CN203614230U CN203614230U CN201320763833.4U CN201320763833U CN203614230U CN 203614230 U CN203614230 U CN 203614230U CN 201320763833 U CN201320763833 U CN 201320763833U CN 203614230 U CN203614230 U CN 203614230U
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- Prior art keywords
- oil
- gas turbine
- turbine rotor
- main body
- shaped main
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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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- 238000007789 sealing Methods 0.000 claims description 39
- 230000003287 optical effect Effects 0.000 claims description 8
- 230000001186 cumulative effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 13
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000000314 lubricant Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Turbine Rotor Nozzle Sealing (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model relates to an oil seal device for the rotor of a gas turbine. The oil seal device comprises an oil seal piece, an impeller shaft of the rotor of the gas turbine, and a bearing seat with an oil supply hole, wherein the oil seal piece is provided with a sleeve-shaped main body and external threads formed in the outer peripheral wall of the sleeve-shaped main body; the oil seal piece is mounted on the impeller shaft in a sleeved manner and rotate together with the impeller shaft, and the spiral line direction of the external threads is opposite to the rotating direction of the impeller shaft; the oil seal piece is embedded into the bearing seat, one end of the sleeve-shaped main body penetrates through a bearing, and a radial clearance is formed between the external threads and the inner wall of the bearing seat. The oil supply hole is positioned between the bearing and the external threads. The oil seal device for the rotor of the gas turbine has an excellent oil seal effect.
Description
Technical field
The utility model relates to technical field of internal combustion engines, particularly a kind of oil sealer of gas turbine rotor.
Background technique
Gas turbine rotor is a kind of parts of high speed rotating, and bearing place needs good oil lubrication and cool condition.If oil leakage, accumulation, not only cause waste in equipment, also easily cause serious explosive accident.In prior art, the sealing at conventional gas turbine rotor place has following inferior position: 1, labyrinth seal oil sealing effect is not good enough.2, only apply certain single oil sealing mode and can not reach the effect of complete oil sealing.The sealing of these lubricant oil problem improperly; not only cause lubricant oil waste to increase cost of production; and in producing, oil leakage not only affects the lubrication effect of gas turbine too much, and can be because there is the hidden danger of the work safety accidents such as shutdown or high temperature blast in faulty lubrication.
Model utility content
For the problems referred to above, the purpose of this utility model is to provide a kind of oil sealer of gas turbine rotor, can realize good oil sealing effect.
In order to realize this purpose, a kind of oil sealer of gas turbine rotor is provided, it comprises:
Oil sealing part, has sleeve-shaped main body and is arranged on the outside thread on the periphery wall of described sleeve-shaped main body; The impeller shaft of gas turbine rotor, described oil sealing part is sleeved on described impeller shaft and together and rotates, the direction of rotation of described externally threaded helix direction and described impeller shaft; There is the bearing support of oil inlet hole, described oil sealing part embeds in described bearing support, and one end of sleeve-shaped main body is through bearing, between described outside thread and the inwall of described bearing support, forms radial clearance, wherein, described oil inlet hole is between described bearing and described outside thread.
Preferably, be also provided with flinger ring on the periphery wall of described sleeve-shaped main body, described flinger ring is between described oil inlet hole and described outside thread.
Preferably, described externally threaded nominal diameter is steady state value.
Preferably, this oil sealer also comprise be opened on described bearing support, in order to pass into the suction port of superheated steam, described suction port is communicated with the radial clearance between described bearing support and oil sealing part.
Preferably, in described sleeve-shaped main body, be also provided with optical axis section and the shaft shoulder, described optical axis section through the inner ring of described bearing and with axis hole drive fit, the described shaft shoulder carries out axially locating to described bearing.
Preferably, the periphery wall of described sleeve-shaped main body is also arranged with the washer sets of rotating together with described sleeve-shaped main body regularly, described washer sets is arranged between described oil inlet hole and described flinger ring, between described washer sets and described bearing support, is formed with radial clearance.
Preferably, described flinger ring is arranged to: along pointing to the cumulative tapered collar of described externally threaded direction from described oil inlet hole.
Preferably, described sleeve-shaped main body, outside thread and described flinger ring are integrated setting.
Preferably, described washer sets is made up of the disk spring washer of multiple mutual extruding, each disk spring washer has convex side and concave side, and described disk spring washer is arranged to: convex side contacts and forms radially V-arrangement space with convex side extruding, and concave side contacts with concave side extruding.
Preferably, between described oil inlet hole and described flinger ring, be provided with the first annular protrusion, described the first annular protrusion restriction washer sets moves to described flinger ring direction.
The beneficial effects of the utility model are, lubricant oil enter between outside thread and the inwall of bearing support, form radial clearance in time, can constantly be carried towards the direction of bearing in a steady stream by externally threaded rotatablely moving, thereby realize good oil sealing effect.
Accompanying drawing explanation
Fig. 1 is according to oil sealing part of the present utility model embodiment's schematic diagram;
Fig. 2 is according to the oil sealer of gas turbine rotor of the present utility model embodiment's schematic diagram;
Fig. 3 is according to the oil sealer of gas turbine rotor of the present utility model embodiment's decomposing schematic representation;
Fig. 4 a and 4b are according to the disk spring washer of shim pack of the present utility model embodiment's schematic diagram.
In figure: 1, impeller shaft; 2, bearing gland; 3, oil inlet hole; 4, suction port; 5, impeller; 6, drainback passage; 7, bearing; 8, washer sets; 9, bearing support; 10, oil sealing part; 11, optical axis section; 12, outside thread; 13, the first annular protrusion; 14, the shaft shoulder; 15, flinger ring; 16, disk spring washer.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the technical solution of the utility model is described further.
Fig. 1 to Fig. 3 shows according to the embodiment of the oil sealer of gas turbine rotor of the present utility model, and it comprises: the impeller shaft 1 of oil sealing part 10, gas turbine rotor and have the bearing support 9 of oil inlet hole 3.Oil sealing part 10 has sleeve-shaped main body and is arranged on the outside thread 12 on the periphery wall of sleeve-shaped main body.Oil sealing part 10 is sleeved on impeller shaft 1 and together and rotates, the direction of rotation of the helix direction of outside thread 12 and described impeller shaft 1.In oil sealing part 10 embedded axle bearings 9, and one end of sleeve-shaped main body is through bearing 7, between outside thread 12 and the inwall of bearing support 9, forms radial clearance.Wherein, oil inlet hole 3 is between bearing 7 and outside thread 12.
No matter the direction of rotation of so-called helix direction and impeller shaft, for example, be that helix direction is left-handed or dextrorotation, as long as and impeller shaft 1 direction of rotation.
This layout of the oil sealer of gas turbine rotor make the lubricant oil that entered by oil inlet hole 3 enter between outside thread 12 and the inwall of bearing support 9, form radial clearance in time, can constantly be carried towards the direction of bearing 7 in a steady stream by rotatablely moving of outside thread 12, finally flow into drainback passage 6.
The thread seal being provided by outside thread 12 has been provided this oil sealer, can realize good oil sealing effect.
Referring to Fig. 1, also can find out on the periphery wall of sleeve-shaped main body and also be provided with flinger ring 15, flinger ring 15 is between oil inlet hole 3 and outside thread 12.Flinger ring 15 combines with the thread seal that outside thread 12 provides, and has realized better oil sealing effect.As shown in Figure 1, flinger ring 15 is arranged to tapered collar, cumulative along the direction of pointing to outside thread 12 from oil inlet hole 3.As a kind of preferred implementation, obviously sleeve-shaped main body, outside thread 12 and flinger ring 15 can be integrated setting.
Preferably, in one embodiment, the nominal diameter of outside thread 12 can be steady state value.
Except aforesaid thread seal and flinger ring sealing, according to an embodiment of the present utility model, oil sealer also provides a kind of high-pressure gas seal.Particularly, this high-pressure gas seal can be set to: comprise be opened on bearing support 9, in order to pass into the suction port 4 of superheated steam, the radial clearance between suction port 4 connection shaft bearings 9 and oil sealing part 10.The superheated steam of being introduced by suction port 4 can maintain the pressure difference that oil sealing part 10 is higher with coaxial brought forward side, gap between bearing support, thus flowing powerful resistance be provided backward for lubricant oil.This embodiment is further combined with the high-pressure gas seal being provided by suction port 4, thereby realized better oil sealing effect.
Continue referring to Fig. 2-Fig. 3, in one embodiment, in sleeve-shaped main body, be also provided with optical axis section 11 and the shaft shoulder 14, optical axis section 11 through the inner ring of bearing and with axis hole drive fit, the shaft shoulder 14 carries out axially locating to bearing, and so sleeve body is rotated with respect to bearing support owing to being rotatably supported on bearing.
In order further to strengthen oil sealing effect on the basis in aforementioned threads sealing, high-pressure gas seal and flinger ring sealing.The utility model also additionally additionally provides washer sets sealing.Particularly, shown in Fig. 2-3, in one embodiment, the periphery wall of sleeve-shaped main body is also arranged with the washer sets 8 of rotating together with sleeve-shaped main body regularly, washer sets 8 is arranged between oil inlet hole 3 and flinger ring 15, between washer sets 8 and bearing support, is formed with radial clearance.Like this, the lubricant oil being entered by oil inlet hole 3, in the time moving along the direction of pointing to outside thread 12 from optical axis section 11, first can be stopped a part by washer sets 8.The washer sealing being provided by washer sets 8 is further provided this embodiment on the basis of aforementioned various sealings, has realized more excellent oil sealing effect.
As shown in Figs. 4a and 4b, preferably, washer sets 8 is made up of the disk spring washer 16 of multiple mutual extruding, each disk spring washer 16 has convex side and concave side, disk spring washer 16 is arranged to: convex side contacts and forms radially V-arrangement space with convex side extruding, and concave side contacts with concave side extruding.As shown in Figure 4 b, each disk spring washer has convex side and concave side, and disk spring washer has the perforate that diameter is d, and maximum outside diameter is D, and axial width is H, and wall thickness is t.The V-arrangement space that this extruding contact forms can be blocked in lubricant oil wherein, thereby plays oil-blocking action.
Although four kinds of oil sealing modes such as the thread seal being provided by outside thread 12, the washer sealing being provided by washer sets 8, the high-pressure gas seal providing by suction port 4 and flinger ring 15 stop are provided oil sealer of the present utility model, but combination in any as required, thereby realize better oil sealing effect.In the time of four kinds of oil sealing modes of comprehensive utilization, can realize optimum oil sealing effect.
Below the utility model is described in conjunction with the embodiments, one skilled in the art will understand that these embodiments are only for exemplary, scope of the present utility model limits by claim is unique.
Claims (10)
1. an oil sealer for gas turbine rotor, is characterized in that, comprising:
Oil sealing part (10), has sleeve-shaped main body and is arranged on the outside thread (12) on the periphery wall of described sleeve-shaped main body,
The impeller shaft (1) of gas turbine rotor, described oil sealing part (10) is sleeved on the upper also rotation together of described impeller shaft (1), the direction of rotation of the helix direction of described outside thread (12) and described impeller shaft (1);
The bearing support (9) with oil inlet hole (3), described oil sealing part (10) embeds in described bearing support (9), and one end of sleeve-shaped main body is through bearing (7), between described outside thread (12) and the inwall of described bearing support (9), forms radial clearance,
Wherein, described oil inlet hole (3) is positioned between described bearing (7) and described outside thread (12).
2. the oil sealer of gas turbine rotor according to claim 1, is characterized in that, is also provided with flinger ring (15) on the periphery wall of described sleeve-shaped main body, and described flinger ring (15) is positioned between described oil inlet hole (3) and described outside thread (12).
3. the oil sealer of gas turbine rotor according to claim 1, is characterized in that,
The nominal diameter of described outside thread (12) is steady state value.
4. the oil sealer of gas turbine rotor according to claim 1, is characterized in that,
Also comprise be opened on described bearing support (9), in order to pass into the suction port (4) of superheated steam, described suction port (4) is communicated with the radial clearance between described bearing support (9) and oil sealing part (10).
5. the oil sealer of gas turbine rotor according to claim 1, is characterized in that,
In described sleeve-shaped main body, be also provided with optical axis section (11) and the shaft shoulder (14), described optical axis section (11) through the inner ring of described bearing and with axis hole drive fit, the described shaft shoulder (14) carries out axially locating to described bearing.
6. the oil sealer of gas turbine rotor according to claim 2, it is characterized in that, the periphery wall of described sleeve-shaped main body is also arranged with the washer sets (8) of rotating together with described sleeve-shaped main body regularly, described washer sets (8) is arranged between described oil inlet hole (3) and described flinger ring (15), between described washer sets (8) and described bearing support, is formed with radial clearance.
7. the oil sealer of gas turbine rotor according to claim 2, is characterized in that, described flinger ring (15) is arranged to: along the cumulative tapered collar of direction that points to described outside thread (12) from described oil inlet hole (3).
8. the oil sealer of gas turbine rotor according to claim 2, is characterized in that, described sleeve-shaped main body, outside thread (12) and described flinger ring (15) are integrated setting.
9. the oil sealer of gas turbine rotor according to claim 6, it is characterized in that, described washer sets (8) is made up of the disk spring washer (16) of multiple mutual extruding, each disk spring washer (16) has convex side and concave side, described disk spring washer (16) is arranged to: convex side contacts and forms radially V-arrangement space with convex side extruding, and concave side contacts with concave side extruding.
10. according to the oil sealer of gas turbine rotor claimed in claim 6, it is characterized in that, between described oil inlet hole (3) and described flinger ring (15), be provided with the first annular protrusion (13), described the first annular protrusion (13) restriction washer sets (8) moves to described flinger ring (15) direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320763833.4U CN203614230U (en) | 2013-11-27 | 2013-11-27 | Oil seal device for rotor of gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320763833.4U CN203614230U (en) | 2013-11-27 | 2013-11-27 | Oil seal device for rotor of gas turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614230U true CN203614230U (en) | 2014-05-28 |
Family
ID=50766881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320763833.4U Expired - Lifetime CN203614230U (en) | 2013-11-27 | 2013-11-27 | Oil seal device for rotor of gas turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203614230U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360632A (en) * | 2020-12-03 | 2021-02-12 | 上海电气燃气轮机有限公司 | Oil scraper ring for gas turbine |
-
2013
- 2013-11-27 CN CN201320763833.4U patent/CN203614230U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360632A (en) * | 2020-12-03 | 2021-02-12 | 上海电气燃气轮机有限公司 | Oil scraper ring for gas turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170317 Address after: 201406 Fengxian District, South Town, Shanghai Yang Wang Industrial Park, Yong Yang Road, No. 228 Patentee after: SHANGHAI FANZHI ENERGY EQUIPMENT CO.,LTD. Address before: The 065001 Hebei economic and Technological Development Zone of Langfang Huaxiang new Austrian Science and Technology Park in the Southern District of B City Patentee before: ENN SCIENCE & TECHNOLOGY DEVELOPMENT Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201406 No. 228, Yong Yang Road, Yang Wang Industrial Park, South Bridge Town, Fengxian District, Shanghai Patentee after: ENN ENERGY POWER TECHNOLOGY (SHANGHAI) Co.,Ltd. Address before: 201406 No. 228, Yong Yang Road, Yang Wang Industrial Park, South Bridge Town, Fengxian District, Shanghai Patentee before: SHANGHAI FANZHI ENERGY EQUIPMENT CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |
|
| CX01 | Expiry of patent term |