CN202431754U - Air-tight seal of hydraulic generator bearing - Google Patents
Air-tight seal of hydraulic generator bearing Download PDFInfo
- Publication number
- CN202431754U CN202431754U CN2011204564503U CN201120456450U CN202431754U CN 202431754 U CN202431754 U CN 202431754U CN 2011204564503 U CN2011204564503 U CN 2011204564503U CN 201120456450 U CN201120456450 U CN 201120456450U CN 202431754 U CN202431754 U CN 202431754U
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- Prior art keywords
- air
- tight seal
- oil
- hydraulic generator
- hermetic seal
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- Expired - Fee Related
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Abstract
The utility model relates to an air-tight seal of a hydraulic generator bearing, which comprises an air-tight seal seat, a sealed air inlet pipe, an oil discharge air tube and a pressure measuring pipe welded on the wall plate of the air-tight seal seat; a non-contact seal ring is arranged in a slot of the air-tight seal seat; the sealed air inlet pipe is connected with a high-pressure air pipe of a rotor; the oil discharge air tube is led into an oil mist separator through a pipeline, and an outer screw is screwed on the pressure measuring pipe and provided with an end cap. According to the air-tight seal of the hydraulic generator bearing, the structure is simple, the installation and the maintenance are convenient, thrown oil outside the bearing can be removed thoroughly, the service life of a sealing element is prolonged effectively, and the air-tight seal is applicable to use of the hydraulic generator bearing with different rotating speeds.
Description
Technical field
The utility model relates to the hermetic seal of a kind of hydraulic generator machine bearing.
Background technique
In the unit operation, thrust collar and runner plate outer wall will drive the quiet oil motion of viscous, make pasta because of centrifugal action gushes height, splashes or stirs to the oil groove outer wall, be prone to make oil droplet or mist of oil to overflow from the revolving part surface and the slit of sealing cover; In addition, along with the rising of bearing temperature, oil and volume of air in the oil groove are expanded, thereby produced interior pressure, under the effect of interior pressure, the mist of oil in the oil groove also can overflow from the revolving part surface and the slit of sealing cover with gas; The outer oil that gets rid of of bearing is not only wasted lubricant oil, and the pollution machine is cheated, and also can pollute the winding of stator and rotor, quickens the aging of insulation; Also can reduce oil level when serious, cause bearing shell to burn.The bearing seal structure of hydraulic turbine generator adopts labyrinth sealing or comb-shaped sealing more at present, and packing material is wool felt in the seal groove.These structures all can not solve the reason that above-mentioned bearing gets rid of oil outward simultaneously; And wool felt and revolving part surface contacts, long operational time after, wool felt can harden, it will be more serious that bearing gets rid of oil outward.
Summary of the invention
The purpose of the utility model is in order to overcome existing technical disadvantages, to provide a kind of simple in structure, convenient for installation and maintenance, can thoroughly eliminate bearing and get rid of oil outward, effectively improving the hydraulic generator machine bearing hermetic seal of seal durability.
The technological scheme of the utility model is: it comprises the hermetic seal seat, is sealed into tracheae, oil extraction tracheae and pressure-measuring pipe and is welded on the hermetic seal seat wallboard, and the contactless sealing ring is packed in the groove of hermetic seal seat; Be sealed into tracheae and link to each other with the rotor high-pressure air pipe, the oil extraction tracheae is introduced oil mist separator through pipeline, and the pressure-measuring pipe car has outer silk, and plug is housed.
The utility model has the advantages that: 1, simple in structure, convenient for installation and maintenance; 2, can thoroughly eliminate bearing and get rid of oil outward, effectively improve seal durability, the hydraulic generator machine bearing that adapts to different rotating speeds uses.
Description of drawings
Fig. 1 is the utility model plan view
Fig. 2 is the utility model sectional view
Embodiment
Like Fig. 1, shown in Figure 2, it comprises hermetic seal seat 1, is sealed into tracheae 3, oil extraction tracheae 4 and pressure-measuring pipe 5 and is welded on hermetic seal seat 1 wallboard, and contactless sealing ring 2 is packed in the groove of hermetic seal seat 1; Be sealed into tracheae 3 and link to each other with the rotor high-pressure air pipe, oil extraction tracheae 4 is introduced oil mist separator through pipeline, and pressure-measuring pipe 5 cars have outer silk, and plug is housed.
When install in the building site; Rap on the hermetic seal seat 1 and embed contactless sealing ring 2 made of copper; And evenly (gap is usually at 0.2mm～0.3mm) to adjust contactless sealing ring 2 and rotatable parts gap; On the face of joint close crack, apply glue again with other position that leaks gas possibly, and the attachment bolt of screw on hermetic seal and bearing etc.; Suction tude 3 is linked to each other with the source of the gas pipe of rotor zone of high pressure, and hermetic seal seat 1 epicoele feeds pressure air, makes the certain static pressure of generation in the chamber, thereby stops oil gas mixture to external leakage; Oil extraction tracheae 4 is connected with the outer oil mist separator in machine hole, the oil gas mixture in the hermetic seal seat 1 is opened Oil-gas Separation through condenser; On pressure-measuring pipe 5, load onto plug, leak from pressure-measuring pipe, can be folded down plug in case of necessity and load onto pressure gauge monitoring hyperbaric chamber pressure condition to prevent oil gas mixture.
Claims (2)
1. hydraulic generator machine bearing hermetic seal, it comprises hermetic seal seat (1), it is characterized in that: be sealed into tracheae (3), oil extraction tracheae (4) and pressure-measuring pipe (5) and be welded on hermetic seal seat (1) wallboard, contactless sealing ring (2) is packed in the groove of hermetic seal seat (1).
2. hydraulic generator machine bearing according to claim 1 hermetic seal is characterized in that: be sealed into tracheae (3) and link to each other with the rotor high-pressure air pipe, oil extraction tracheae (4) is introduced oil mist separator through pipeline, and pressure-measuring pipe (5) car has outer silk, and plug is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204564503U CN202431754U (en) | 2011-11-15 | 2011-11-15 | Air-tight seal of hydraulic generator bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204564503U CN202431754U (en) | 2011-11-15 | 2011-11-15 | Air-tight seal of hydraulic generator bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202431754U true CN202431754U (en) | 2012-09-12 |
Family
ID=46781200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204564503U Expired - Fee Related CN202431754U (en) | 2011-11-15 | 2011-11-15 | Air-tight seal of hydraulic generator bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202431754U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110748567A (en) * | 2019-10-16 | 2020-02-04 | 哈尔滨迅普科技发展有限公司 | Combined structure light split type hydraulic generator bearing oil groove sealing seat ring |
| CN111089025A (en) * | 2019-12-17 | 2020-05-01 | 国家电网有限公司 | Water pump turbine thrust bearing oil groove cover plate sealing device |
-
2011
- 2011-11-15 CN CN2011204564503U patent/CN202431754U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110748567A (en) * | 2019-10-16 | 2020-02-04 | 哈尔滨迅普科技发展有限公司 | Combined structure light split type hydraulic generator bearing oil groove sealing seat ring |
| CN111089025A (en) * | 2019-12-17 | 2020-05-01 | 国家电网有限公司 | Water pump turbine thrust bearing oil groove cover plate sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20141115 |
|
| EXPY | Termination of patent right or utility model |