CN202220856U - Air sealing structure for hydraulic generator oil tank - Google Patents
Air sealing structure for hydraulic generator oil tank Download PDFInfo
- Publication number
- CN202220856U CN202220856U CN2011203204591U CN201120320459U CN202220856U CN 202220856 U CN202220856 U CN 202220856U CN 2011203204591 U CN2011203204591 U CN 2011203204591U CN 201120320459 U CN201120320459 U CN 201120320459U CN 202220856 U CN202220856 U CN 202220856U
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- CN
- China
- Prior art keywords
- sealing
- cage
- generator
- rotating part
- sealed
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 52
- 239000003595 mist Substances 0.000 claims abstract description 35
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000000605 extraction Methods 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract 4
- 239000003921 oil Substances 0.000 description 35
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 210000002268 wool Anatomy 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000010977 unit operation Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
The utility model relates to an airtight structure especially relates to an airtight structure for hydraulic generator oil tank. The sealing cover comprises a generator rotating part, a sealing cover seat is sleeved on the generator rotating part, a three-layer sealing copper ring is arranged on an inner ring of the sealing cover seat, the three-layer sealing copper ring is in sealing contact with the generator rotating part through a sealing strip, the three-layer sealing copper ring, the generator rotating part and the sealing cover seat form an upper sealing high-pressure cavity and a lower sealing oil mist discharging cavity, the sealing cover seat is internally communicated with a sealing air inlet pipe and an oil mist discharging pipe, the sealing air inlet pipe is communicated with the upper sealing high-pressure cavity, and the oil mist discharging pipe is communicated with the lower sealing oil mist discharging cavity. The air sealing structure for the oil tank of the hydraulic generator is simple in structure, convenient to operate, capable of reducing pollution emission and long in service life.
Description
Technical field
The utility model patent relates to a kind of hermetic seal structure, relates in particular to a kind of hermetic seal structure that is used for the hydraulic generator sump.
Background technique
The stator of present generator of the prior art and rotor coil are the main heating parts; Because the irreqularity of group coil surface; Dust in unit running process in the cooling air little by little is adsorbed on the surface of coil, and the main heating parts heat dispersion of generator is reduced.The high speed hydraulic turbine generator is because rotating speed is higher, and frictional loss is bigger, so the temperature of lubricant oil is higher; Thereby the mist of oil that produces is many; These mist of oils can be diffused into generator inside, on the coil of stator and rotor, pile up, and the dust in the circulating air can be adsorbed on the surface of coil more; Can make the stator and rotor coil short when serious, lead to electric accident.How to make coil in the process of generator set, avoid the pollution of mist of oil, keep good electrical insulation properties, an insoluble problem that faces when always being high speed generator unit oil mist sealing structural design in long-time running.Conventional design is that the sealing part at oil groove lid adds the effusion that wool felt stops mist of oil, but this sealing configuration adopts is contact seal, wool felt by oil pollution after elasticity very poor, the unit operation time has been grown, sealing will be lost efficacy.Wool felt has the inflammable articles of belonging in addition, and the rotating part friction of it and unit can heating, makes wool felt temperature height, and this long-term safety to generator, stable operation are a hidden danger.The mist of oil of overflowing from fuel tank in addition can pollute generator floor and factory building, influences the clean and tidy and attractive in appearance of factory building, increases unit operation personnel's work load.
Summary of the invention
The utility model mainly is to solve the deficiency that exists in the existing technology, provides a kind of simple in structure, simultaneously the strong hermetic seal structure that is used for the hydraulic generator sump of sealing.
The above-mentioned technical problem of the utility model mainly is able to solve through following technical proposals:
A kind of hermetic seal structure that is used for the hydraulic generator sump; Comprise the generator rotating part; Be with the sealing cage on the described generator rotating part, the interior ring of described sealing cage is provided with three-layer sealed copper ring, and described three-layer sealed copper ring seals mutually through Stamping Steel Ribbon with the generator rotating part and touches; Described three-layer sealed copper ring, generator rotating part and sealing cage form sealed high pressure chamber and lower seal oil extraction mist chamber; Communication seals suction tude and oil extraction mist pipe in the described sealing cage, the described tracheae that is sealed into is connected with last sealed high pressure chamber, and described oil extraction mist pipe is connected with lower seal oil extraction mist chamber.
The sealing copper ring is as the non-contact sealed body of generator static part and rotatable parts; Adopt the method for dredging simultaneously; Utilize generator internal high pressure gas with the mist of oil gas barrier that produces in the oil pocket in a toroidal cavity, at another oil pocket mist of oil is exported to the free of contamination home of generator.The inner pressurized gas of introducing generator seal as gas curtain, and another oil pocket has the discharge function of mist of oil in the generator oil groove.
The sealing of first road, sealing copper ring keep certain clearance to stop mist of oil effusion in the oil groove with the generator rotating part after fine finishing.Because the sealing copper ring does not contact with generator, so do not worry the frictional heating problem of rotating part and standstill seal parts.
Second road sealing: the sealing cage is designed to upper and lower two cavitys, and wherein the cavity of outer end need be connected to generator high-pressure air place, the inner draw the back directly with generator machine hole outside the mist of oil trap link.Utilize the sealing principle of air curtain, the pressurized gas that the outer end imports in a toroidal cavity, export to a relative home at inner oil pocket with mist of oil with the mist of oil gas barrier that produces in the oil pocket.
As preferably; Described sealing cage is made up of left cage and right cage; A left side cage and right cage fix through bolt, and described sealing cage is provided with two upper conduits that are dislocatedly distributed and downcomer, described upper conduit be sealed into tracheae and be connected; Described downcomer is connected with oil extraction mist pipe, and described Stamping Steel Ribbon is located at the sidewall of sealing copper ring.
As preferably, described upper conduit be sealed into tracheae, downcomer and oil extraction mist pipe and be connected through insulated connecting piece respectively.
As preferably, the radian of the mosaic of the mosaic of described upper conduit and left cage and right cage, downcomer and left cage and right cage is respectively 30 degree.
Therefore, the hermetic seal structure that is used for the hydraulic generator sump of the utility model, simple in structure, easy to operate, reduce disposal of pollutants, increase the service life.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is a sealing cage and the structural representation that seals copper ring in the utility model;
Fig. 3 is the A-A sectional structure schematic representation among Fig. 2.
Embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically the technological scheme of the utility model.
Embodiment 1: like Fig. 1, Fig. 2 and shown in Figure 3; A kind of hermetic seal structure that is used for the hydraulic generator sump; Comprise generator rotating part 1, be with sealing cage 2 on the described generator rotating part 1, the interior ring of described sealing cage 2 is provided with three-layer sealed copper ring 3; Described three-layer sealed copper ring 3 seals mutually through Stamping Steel Ribbon 4 with generator rotating part 1 and touches; Described three-layer sealed copper ring 3, generator rotating part 1 and sealing cage 2 form goes up sealed high pressure chamber 5 and lower seal oil extraction mist chamber 6, communication seals suction tude 7 and oil extraction mist pipe 8 in the described sealing cage 2, and the described tracheae 7 that is sealed into is connected with last sealed high pressure chamber 5; Described oil extraction mist pipe 8 is connected with lower seal oil extraction mist chamber 6; Described sealing cage 2 is made up of with right cage 10 left cage 9, and left cage 9 fixes through bolt 11 with right cage 10, and described sealing cage 2 is provided with two upper conduits that are dislocatedly distributed 12 and downcomer 13; Described upper conduit 12 be sealed into tracheae 7 and be connected; Described downcomer 13 is connected with oil extraction mist pipe 8, and described Stamping Steel Ribbon 4 is located at the sidewall of sealing copper ring 3, described upper conduit 12 be sealed into tracheae 7, downcomer 13 and oil extraction mist pipe 8 respectively through insulated connecting piece 14-1; 14-2 is connected, and described upper conduit 12 is respectively 30 degree with mosaic, the downcomer 13 of left cage 9 and right cage 10 with the radian of the mosaic of left cage 9 and right cage 10.
Claims (4)
1. hermetic seal structure that is used for the hydraulic generator sump; It is characterized in that: comprise generator rotating part (1); Be with sealing cage (2) on the described generator rotating part (1); The interior ring of described sealing cage (2) is provided with three-layer sealed copper ring (3); Described three-layer sealed copper ring (3) seals mutually through Stamping Steel Ribbon (4) with generator rotating part (1) and touches, sealed high pressure chamber (5) and lower seal oil extraction mist chamber (6) in described three-layer sealed copper ring (3), generator rotating part (1) and the formation of sealing cage (2), communication seals suction tude (7) and oil extraction mist pipe (8) in the described sealing cage (2); The described tracheae (7) that is sealed into is connected with last sealed high pressure chamber (5), and described oil extraction mist pipe (8) is connected with lower seal oil extraction mist chamber (6).
2. the hermetic seal structure that is used for the hydraulic generator sump according to claim 1; It is characterized in that: described sealing cage (2) is made up of left cage (9) and right cage (10); Left side cage (9) and right cage (10) fix through bolt (11); Described sealing cage (2) is provided with two upper conduits that are dislocatedly distributed (12) and downcomer (13); Described upper conduit (12) be sealed into tracheae (7) and be connected, described downcomer (13) is connected with oil extraction mist pipe (8), described Stamping Steel Ribbon (4) is located at the sidewall of sealing copper ring (3).
3. the hermetic seal structure that is used for the hydraulic generator sump according to claim 2; It is characterized in that: described upper conduit (12) and be sealed into tracheae (7), downcomer (13) and oil extraction mist pipe (8) (14-1 14-2) is connected through insulated connecting piece respectively.
4. the hermetic seal structure that is used for the hydraulic generator sump according to claim 2 is characterized in that: described upper conduit (12) is respectively 30 degree with mosaic, the downcomer (13) of left cage (9) and right cage (10) with the radian of the mosaic of left cage (9) and right cage (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203204591U CN202220856U (en) | 2011-08-30 | 2011-08-30 | Air sealing structure for hydraulic generator oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203204591U CN202220856U (en) | 2011-08-30 | 2011-08-30 | Air sealing structure for hydraulic generator oil tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202220856U true CN202220856U (en) | 2012-05-16 |
Family
ID=46042883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203204591U Expired - Lifetime CN202220856U (en) | 2011-08-30 | 2011-08-30 | Air sealing structure for hydraulic generator oil tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202220856U (en) |
-
2011
- 2011-08-30 CN CN2011203204591U patent/CN202220856U/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 | ||
| C56 | Change in the name or address of the patentee |
Owner name: HANGZHOU RESOURCE POWER EQUIPMENT CO., LTD. Free format text: FORMER NAME: HANGZHOU LIANYUAN HEAVY INDUSTRY MACHINERY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 311228, No. five, No. 2688, Linjiang Industrial Zone, Xiaoshan District, Zhejiang, Hangzhou Patentee after: Hangzhou Resource Power Equipment Co., Ltd. Address before: 311228, No. five, No. 2688, Linjiang Industrial Zone, Xiaoshan District, Zhejiang, Hangzhou Patentee before: Hangzhou Lianyuan Heavy Industry Machinery Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120516 |
|
| CX01 | Expiry of patent term |