CN209976688U - Contact brush type oil and oil mist preventing device - Google Patents
Contact brush type oil and oil mist preventing device Download PDFInfo
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- CN209976688U CN209976688U CN201920674625.4U CN201920674625U CN209976688U CN 209976688 U CN209976688 U CN 209976688U CN 201920674625 U CN201920674625 U CN 201920674625U CN 209976688 U CN209976688 U CN 209976688U
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- oil
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Turbine Rotor Nozzle Sealing (AREA)
- Sealing Devices (AREA)
Abstract
Different hydroelectric set, bearing get rid of oil and oil mist excessive ubiquitous problem, and the bearing oil level is too high, causes interior oil of getting rid of, and the bearing oil temperature is on the high side, and the oil mist evaporation capacity is big. This device includes the sealed brush of gas side, gas side contact tooth, vice seat circle, and the sealed brush of oil side, oil side contact tooth, main seat circle, vice seat circle, main seat circle, pivot, frame, sealed with the relative contact formula of sealed tooth through the absolute contact of sealed brush is sealed, the effectual oil and oil leakage fog problem of getting rid of hydroelectric set bearing chamber of having solved, can realize the zero of lubricating oil and reveal, thoroughly stopped because of the problem such as the environmental pollution of revealing of lubricating oil, oil supplementation, burning tile.
Description
One, the technical field
The sealing device thoroughly solves the problems of oil leakage, oil mist throwing and oil throwing of a bearing bush oil chamber of the water turbine, environmental pollution caused by oil throwing of a rotating part and potential safety hazards caused by oil leakage.
Second, background Art
In different hydroelectric generating sets, the oil throwing of the bearing and the oil mist overflow are common problems, and the oil throwing inside is caused by the overhigh oil level of the bearing; the oil temperature of the bearing is higher, and the evaporation capacity of the oil mist is large.
In the running process of the unit, due to the high-speed rotation of the rotating part of the bearing, the friction heat is generated by the movable and static parts of the bearing in the working process to cause the oil temperature to rise, and the formation and the diffusion of the oil mist are promoted. The oil level of the turbine oil is correspondingly increased after the turbine oil is heated and expanded, and a little positive pressure exists in the oil groove. The cold turbine oil can absorb a certain amount of moisture and dissolve a certain amount of air, the moisture and the air dissolved into the oil in a cold state are vaporized along with the operation of the unit and the rise of the oil temperature, and a certain amount of oil is carried out while the moisture and the air are vaporized to form oil mist; the linear velocity of the rotor of the hydraulic generator is large, and small relative gaps exist between moving and static rotors, so that the rotors take out oil, and oil mist directly leak and condense at the gaps, thereby causing serious potential safety hazards to the operation and maintenance of the unit.
The bearing gets rid of oil and leads to the unit operational environment abominable, and lubricating oil resource waste increases the running cost and the maintenance work volume of unit, and bearing cooling effect reduces, and the tile temperature will rise gradually. Oil mist and brake flashboard dust are adsorbed on a rotor magnetic pole and a stator bar for a long time, the heat dissipation effect of a generator is seriously influenced, insulators such as the generator bar are corroded, the insulation performance of the insulators is reduced, the insulators are accelerated to age, a generator coil is short-circuited or punctured, the safety and stability of a unit run, and serious potential safety hazards exist.
Third, the invention
The device aims to solve the problems in the prior art, and provides the contact brush type oil and oil splashing prevention device which is safe, environment-friendly, advanced in structure, easy to install and good in sealing effect.
A contact brush type oil and oil mist preventing device comprises an air side sealing brush 1, air side contact teeth 2, an auxiliary seat ring 3, an oil mist settling cavity 4, a sealing cover main seat ring 5, an oil side sealing brush 6, oil side contact teeth 7, a rotating shaft 8 and a rack 9.
The purpose of the device is realized as follows: the gas side sealing brush 1 and the gas side contact teeth 2 are fixed on the auxiliary seat ring 3, the oil side sealing brush 6 and the oil side contact teeth 7 are fixed on the main seat ring 5, the auxiliary seat ring 3 is connected with the main seat ring 5 and then connected on the frame 9 through centering with the center of the rotating shaft 8, the oil side contact teeth 7 and the gas side contact teeth 2 are in radial zero-clearance contact type sealing, the gas side sealing brush 1 and the oil side sealing brush 6 form included angle type zero-clearance sealing with the rotating shaft 8, and the included angle degree is 30-60 degrees.
Description of the drawings
FIG. 1 is a schematic view of the structure of the apparatus
FIG. 2 is a partial enlarged view of the apparatus
Fifth, detailed description of the invention
The lubricating oil of the bearing bush of the water turbine is thrown to the inner side of the main seat ring 5 and the surface of the rotating shaft 8, when oil drops or oil mist formed by the lubricating oil climbs out along the moving and static gaps along with the rotation of the rotating shaft 8, the oil side sealing teeth 7 on the main seat ring 5 block most of the lubricating oil, and the oil side sealing brushes 6 block and condense the leaked oil mist to block part of the oil drops on the rotating shaft 8 from falling.
The oil mist gathers and produces inside and outside pressure differential, and a part of oil mist gets into oil mist settlement chamber 4, and part condenses into the oil droplet, and the oil droplet gathers in the sound clearance department of oil side seal tooth 7 and pivot 8, can seal oil and oil mist from below.
A small amount of uncondensed oil mist and oil drops generated due to the high linear speed of the rotating shaft 8 are secondarily blocked by the sealing teeth 2 on the auxiliary seat ring 3 and then are forcedly sealed by secondarily blocking the leaked oil mist and condensing the leaked oil mist through the oil side sealing brush 1.
The oil side contact teeth 7 and the gas side contact teeth 2 are in radial zero-clearance contact type sealing, the oil side sealing brushes 1 and the gas side sealing brushes 6 are in included angle type zero-clearance sealing, the oil side sealing brushes 6 and the gas side sealing brushes 1 are formed by arranging nonmetal brush wires with the diameter smaller than 1mm, an included angle of 30-60 degrees is formed between the oil side sealing brushes 6 and the gas side sealing brushes 1 and the rotating shaft 8 along the rotating direction, the oil side sealing brushes 6 and the gas side sealing brushes 1 are adsorbed on the rotating shaft 8 to form zero-clearance sealing, and no damage is caused to the rotating shaft 8.
The oil and the oil mist are sealed, blocked and condensed circularly, and then are sealed, blocked and condensed, and the phenomena of oil throwing, oil mist leakage and the like of the rotating shaft 8 are effectively prevented by the combination of the contact type seal and the included angle type brush type seal.
Claims (3)
1. The utility model provides a brush type of contact prevents getting rid of oil and oil mist device comprises gas side seal brush (1), gas side contact tooth (2), vice seat circle (3), oil mist settlement chamber (4), sealed lid main race circle (5), oil side seal brush (6), oil side contact tooth (7), pivot (8), frame (9), its characterized in that: the air side sealing brush (1) and the air side contact teeth (2) are fixed on the auxiliary seat ring (3), the oil side sealing brush (6) and the oil side contact teeth (7) are fixed on the main seat ring (5), the auxiliary seat ring (3) is connected with the main seat ring (5) and then is connected to the rack (9) through centering with the center of the rotating shaft (8), and the oil side contact teeth (7) and the air side contact teeth (2) are in radial zero-clearance contact type sealing.
2. The contact brush type oil slinging and mist preventing device as claimed in claim 1, wherein: the gas side sealing brush (1) and the oil side sealing brush (6) form an included angle type gapless seal with the rotating shaft (8).
3. The contact brush type oil slinging and mist preventing device as claimed in claim 1, wherein: the included angle between the air side sealing brush (1) and the oil side sealing brush (6) and the rotating shaft (8) is 30-60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920674625.4U CN209976688U (en) | 2019-05-08 | 2019-05-08 | Contact brush type oil and oil mist preventing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920674625.4U CN209976688U (en) | 2019-05-08 | 2019-05-08 | Contact brush type oil and oil mist preventing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209976688U true CN209976688U (en) | 2020-01-21 |
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ID=69262185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920674625.4U Active CN209976688U (en) | 2019-05-08 | 2019-05-08 | Contact brush type oil and oil mist preventing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209976688U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365459A (en) * | 2020-03-09 | 2020-07-03 | 东方电气集团东方电机有限公司 | Combined sealing device for bearing oil groove of vertical hydro-generator |
| CN114110169A (en) * | 2021-11-22 | 2022-03-01 | 重庆华能水电设备制造有限公司 | Oil mist overflow prevention air outlet sealing structure of generator |
-
2019
- 2019-05-08 CN CN201920674625.4U patent/CN209976688U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365459A (en) * | 2020-03-09 | 2020-07-03 | 东方电气集团东方电机有限公司 | Combined sealing device for bearing oil groove of vertical hydro-generator |
| CN111365459B (en) * | 2020-03-09 | 2022-04-05 | 东方电气集团东方电机有限公司 | Combined sealing device for bearing oil groove of vertical hydro-generator |
| CN114110169A (en) * | 2021-11-22 | 2022-03-01 | 重庆华能水电设备制造有限公司 | Oil mist overflow prevention air outlet sealing structure of generator |
| CN114110169B (en) * | 2021-11-22 | 2024-04-26 | 重庆华能水电设备制造有限公司 | Oil mist overflow prevention airtight structure of generator |
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