CN102937145A - Hydro-generator thrust bearing cocurrent runner plate pump outer cycle structure - Google Patents
Hydro-generator thrust bearing cocurrent runner plate pump outer cycle structure Download PDFInfo
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- CN102937145A CN102937145A CN201210455364XA CN201210455364A CN102937145A CN 102937145 A CN102937145 A CN 102937145A CN 201210455364X A CN201210455364X A CN 201210455364XA CN 201210455364 A CN201210455364 A CN 201210455364A CN 102937145 A CN102937145 A CN 102937145A
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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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Abstract
The invention discloses a hydro-generator thrust bearing cocurrent runner plate pump outer cycle structure and relates to the technical field of thrust bearings. The structure comprises a bearing seat, a separation block which is installed in the bearing seat and a runner plate which is located on the upper portion of the separation block, an outer diameter oil tank and an inner diameter oil tank which is communicated with outer diameter oil tank are arranged inside the bearing seat, a tile-to-tile overcurrent area is arranged in the separation block, the bearing seat is connected with an oil inlet pipe which is communicated with the tile-to-tile overcurrent area, an oil baffle plate is installed at one end of the tile-to-tile overcurrent area, the oil baffle plate is arranged at one end which is close to the inner diameter oil tank, the other end of the tile-to-tile overcurrent area is communicated with the outer diameter oil tank, a pump hole which is communicated with the inner diameter oil pipe is arranged on the runner plate, the pump hole is connected with an oil outlet pipe, and the oil outlet pipe is connected with the oil inlet pipe through a cooler. According to the structure, and the disadvantage that the tile-to tile oil flows from the outer diameter to the inner diameter due to the fact that the runner plate pump pumps oil from the inner diameter is overcome, so that the tile-to-tile oil flows along a centrifugal force direction, and the flow resistance is reduced.
Description
Technical field
The present invention relates to the thrust-bearing technical field, exactly relate to a kind of hydraulic generator thrust bearing downflow type external cycling structure for runner pump.
Background technique
The runner-plate pump technology is to utilize to open radial hole at runner plate, makes the centrifugal motion mineralization pressure and drives deep fat through the oil cooler cooling by rotarily driving lubricant oil, flows back to a kind of bearing outer circulation type of cooling of oil groove again.Its working principle is so that the runner-plate pump outer circulation is oily from oil groove inner radius heat-obtaining.Existing runner-plate pump technology all is by oil being come the oil groove outside diameter or near outside diameter, flowing complete cycle to realize oil.
Publication number is CN202215917U, and the Chinese patent literature that open day is on May 9th, 2012 discloses a kind of external cycling structure for runner pump of hydraulic turbine generator.Comprise runner plate, thrust-bearing, oil cooler, annular oil groove, described runner plate is arranged at main shaft, and described oil cooler is arranged at frame, it is characterized in that annular oil groove is socketed on main shaft, runner plate, thrust-bearing are in the oil groove, the outer socket of runner plate arranges guide bearing, sets out oilhole on the guide bearing and is communicated with the oil inlet pipe of oil cooler, and the oil exit pipe of oil cooler is communicated with annular oil groove, and be provided with the through hole of inclination on the runner plate, communicate with the oil outlet of above-mentioned guide bearing.Above-mentioned external cycling structure for runner pump, it drives lubrication oil circulation by the pressure that the generator spinning produces, need not to add motor-drive pump, and oil cooler is arranged on the outer frame support arm of annular oil groove, so that the oil groove internal structure is simple, the installation of oil cooler, maintenance, maintenance are very convenient, need not oil extraction during maintenance.
Above-mentioned patent documentation is a kind of of the reverse-flow outer circulation structure of typical runner-plate pump.The concrete structure of this external cycling structure for runner pump is that runner plate is connected on the main shaft, runner plate is provided with the through hole of inclination, and the outer socket of runner plate arranges guide bearing, sets out oilhole on the guide bearing, the guide bearing oil outlet is communicated with the oil cooler oil inlet pipe, and the oil cooler oil outlet tube is communicated with oil groove.Working principle is that the oil pressure of cool cycles oil is produced by the through hole that the runner plate that is rotating tilts, the deep fat that the lubricant oil cooling guide bearing of being collected by guide bearing produces afterwards enters the oil cooler cooling by the oil cooler oil inlet pipe, cooled cold oil flow back into oil guide slot through the oil cooler oil exit pipe again, enters oil groove by oil nozzle.The oil lubrication thrust-bearing enters the through hole on the runner plate, the circulation of complete again behind the cooling thrust-bearing.But this kind structure lubricant oil watt between free-flow.Different depending on the thrust-bearing stand structure, oil flow or outwards directly mobile from the internal diameter oil groove is the deep fat of internal diameter oil groove by oil between its watt; Contrary centrifugal force direction flows from external diameter towards internal diameter, and flow resistance increasing and oil temperature are higher.Therefore, this structure can cause the thrust bearing shoe valve temperature to raise, and bearing performance descends.
Summary of the invention
Technical problem to be solved by this invention provides a kind of hydraulic generator thrust bearing downflow type external cycling structure for runner pump, adopt the present invention, solved existing in the prior art " cross between watt that the contrary centrifugal force direction of lubricant oil in the oily passage flows and the flow resistance that causes strengthens and oil film entrance makeup oil is the defective of the Properties of Thrust Bearings decline that causes of high temperature oil ", overcome runner-plate pump self cause from the internal diameter oil pumping watt between the shortcoming that flows from the outer radial internal diameter of oil, cold oil flows along the centrifugal force direction between making watt, has reduced flow resistance.
The present invention is by adopting following technical proposals to realize:
A kind of hydraulic generator thrust bearing downflow type external cycling structure for runner pump, it is characterized in that: comprise bearing support, be installed in spacer block and the runner plate that is positioned at the spacer block top in the bearing support, the internal diameter oil groove that in described bearing support, is provided with the external diameter oil groove and is communicated with the external diameter oil groove, overcurrent district between in described spacer block, having watt, described bearing support be connected with watt between the oil inlet pipe that communicates of overcurrent district, an end in overcurrent district is equipped with oil baffle between watt, described oil baffle is arranged on that end near the internal diameter oil groove, the other end in overcurrent district is communicated with the external diameter oil groove between watt, have the pump hole that is communicated with the internal diameter oil groove at described runner plate, the pump hole is connected with oil outlet tube, and oil outlet tube is connected with oil inlet pipe through cooler.
Between described pump hole and oil outlet tube, also be connected with oil trap.
Be that the CN202215917U patent documentation is that the prior art of representative is compared with publication number, beneficial effect of the present invention shows:
The present invention adopt " comprise bearing support; be installed in the spacer block in the bearing support and be positioned at the runner plate of spacer block top; in bearing support, be provided with the internal diameter oil groove that the external diameter oil groove is communicated with the external diameter oil groove; overcurrent district between in spacer block, having watt; bearing support be connected with watt between the oil inlet pipe that communicates of overcurrent district; an end in overcurrent district is equipped with oil baffle between watt, oil baffle is arranged on that end near the internal diameter oil groove, the other end in overcurrent district is communicated with the external diameter oil groove between watt, have the pump hole that is communicated with the internal diameter oil groove at runner plate, the pump hole is connected with oil outlet tube, oil outlet tube is connected with oil inlet pipe through cooler " such technological scheme, have following technique effect:
1, overcome runner-plate pump self cause from the internal diameter oil pumping watt between oil from the shortcoming that the outer radial internal diameter flows, cold oil flows along the centrifugal force direction between making watt, has reduced flow resistance, has improved the runner-plate pump performance.
2, watt oil is through the cooled cold oil of cooler between, and wedge-shaped oil film is replenished by this cold oil in the part that three Exit-edges scatter and disappear, and this has reduced the oil film temperature, and the oil film temperature is low can to increase oil slick thickness, has improved bearing performance.
3, watt the cooling that cold oil has improved watt between.The double-deck tile structure thrust-bearing that employing is had the oil duct cooling has more obvious cooling effect.The improvement of watt cooling has improved bearing performance.
4, among the present invention, watt between the overcurrent district oil baffle is installed, and oil baffle is that side that is positioned near the internal diameter oil groove, such technological scheme, internal diameter flow channels between cutting off watt directly is discharged to internal side diameter between thrust bearing shoe valve through the cold oil of supercooler, and oil baffle stops cold oil directly to flow back to the internal diameter oil groove, outwards flow in the footpath along the centrifugal force direction, force oil in oil groove, to form this ideal operation mode of major cycle.
Description of drawings
The present invention is described in further detail below in conjunction with specification drawings and specific embodiments, wherein:
Fig. 1 is structural representation of the present invention
Mark among the figure:
1, oil inlet pipe, 2, oil baffle, 3, the pump hole, 4, the internal diameter oil groove, 5, runner plate, 6, watt between the overcurrent district, 7, oil trap, 8, oil outlet tube, 9, oil groove, 10, the external diameter oil groove, 11, bearing support, 12, spacer block.
Embodiment
As preferred forms of the present invention, the present invention includes bearing support 11, be installed in spacer block 12 and the runner plate 5 that is positioned at spacer block 12 tops in the bearing support 11, the internal diameter oil groove 4 that described bearing support 11 is connected to external diameter oil groove 10 and is communicated with external diameter oil groove 10, overcurrent district 6 between described spacer block 12 leaves watt, described bearing support 11 be connected with watt between the oil inlet pipe 1 that communicates of overcurrent district 6, an end in overcurrent district 6 is equipped with oil baffle 2 between watt, described oil baffle 2 is arranged on that end near internal diameter oil groove 4, the other end in overcurrent district 6 is communicated with external diameter oil groove 10 between watt, have the pump hole 3 that is communicated with internal diameter oil groove 4 at described runner plate 5, pump hole 3 is connected with oil outlet tube 8, and oil outlet tube 8 is connected with oil inlet pipe 1 through cooler.Between described pump hole 3 and oil outlet tube 8, also be connected with oil trap 7.
Working principle of the present invention is as follows:
Deep fat becomes cold oil after cooler cooling, between oil inlet pipe 1 directly is discharged to internal side diameter watt.Watt between overcurrent district 6 internal side diameters install oil baffle 2 additional, with internal diameter flow channels between cutting off watt, by watt between overcurrent district 6 discharged to outside diameter, enter external diameter oil groove 10.After mixing with deep fat from bearing support 11 bottoms and other and internal diameter oil groove 4 communicating passage flow to internal diameter oil groove 4.Deep fat is driven from pump hole 3 pumps to oil trap 7 by the runner plate 5 of rotation, enters the cooler cooling through oil outlet tube 8, becomes cold oil, flows back to oil inlet pipe 1 again, forms a complete cycle.
Claims (2)
1. hydraulic generator thrust bearing downflow type external cycling structure for runner pump, it is characterized in that: comprise bearing support (11), be installed in the spacer block (12) on the bearing support (11) and be positioned at the runner plate (5) of spacer block (12) top, the internal diameter oil groove (4) that in described bearing support (11), is provided with external diameter oil groove (10) and is communicated with external diameter oil groove (10), overcurrent district (6) between in described spacer block (12), having watt, described bearing support (11) be connected with watt between the oil inlet pipe (1) that communicates of overcurrent district (6), an end of overcurrent district (6) is equipped with oil baffle (2) between watt, described oil baffle (2) is arranged on that end near internal diameter oil groove (4), the other end of overcurrent district (6) is communicated with external diameter oil groove (10) between watt, have the pump hole (3) that is communicated with internal diameter oil groove (4) at described runner plate (5), pump hole (3) is connected with oil outlet tube (8), and oil outlet tube (8) is connected with oil inlet pipe (1) through cooler.
2. a kind of hydraulic generator thrust bearing downflow type external cycling structure for runner pump according to claim 1 is characterized in that: also be connected with oil trap (7) between described pump hole (3) and oil outlet tube (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210455364XA CN102937145A (en) | 2012-11-14 | 2012-11-14 | Hydro-generator thrust bearing cocurrent runner plate pump outer cycle structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210455364XA CN102937145A (en) | 2012-11-14 | 2012-11-14 | Hydro-generator thrust bearing cocurrent runner plate pump outer cycle structure |
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| Publication Number | Publication Date |
|---|---|
| CN102937145A true CN102937145A (en) | 2013-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210455364XA Pending CN102937145A (en) | 2012-11-14 | 2012-11-14 | Hydro-generator thrust bearing cocurrent runner plate pump outer cycle structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113302408A (en) * | 2019-01-17 | 2021-08-24 | 株式会社Ihi | Thrust foil bearing |
| CN114484253A (en) * | 2022-01-17 | 2022-05-13 | 东方电气集团东方电机有限公司 | Lubricating oil circulating system for mirror plate pump bearing |
| CN116950826A (en) * | 2023-09-19 | 2023-10-27 | 杭州杭发发电设备有限公司 | Combined bearing device for full umbrella type hydraulic generator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0914277A (en) * | 1995-06-30 | 1997-01-14 | Meidensha Corp | Bearing device for vertical rotating machine |
| CN202215917U (en) * | 2011-08-19 | 2012-05-09 | 浙江舜飞重型发电设备制造有限公司 | External cycling structure for runner pump |
| CN202955137U (en) * | 2012-11-14 | 2013-05-29 | 东方电气集团东方电机有限公司 | Hydraulic generator thrust bearing down-flow type runner plate pump outer loop structure |
-
2012
- 2012-11-14 CN CN201210455364XA patent/CN102937145A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0914277A (en) * | 1995-06-30 | 1997-01-14 | Meidensha Corp | Bearing device for vertical rotating machine |
| CN202215917U (en) * | 2011-08-19 | 2012-05-09 | 浙江舜飞重型发电设备制造有限公司 | External cycling structure for runner pump |
| CN202955137U (en) * | 2012-11-14 | 2013-05-29 | 东方电气集团东方电机有限公司 | Hydraulic generator thrust bearing down-flow type runner plate pump outer loop structure |
Non-Patent Citations (1)
| Title |
|---|
| 梁学焜: "渔子溪一级电站40MW发电机高速推力轴承设计改进与试验", 《大电机技术》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113302408A (en) * | 2019-01-17 | 2021-08-24 | 株式会社Ihi | Thrust foil bearing |
| US11927214B2 (en) | 2019-01-17 | 2024-03-12 | Ihi Corporation | Thrust foil bearing |
| CN114484253A (en) * | 2022-01-17 | 2022-05-13 | 东方电气集团东方电机有限公司 | Lubricating oil circulating system for mirror plate pump bearing |
| CN114484253B (en) * | 2022-01-17 | 2023-08-25 | 东方电气集团东方电机有限公司 | Lubricating oil circulation system for mirror plate pump bearing |
| CN116950826A (en) * | 2023-09-19 | 2023-10-27 | 杭州杭发发电设备有限公司 | Combined bearing device for full umbrella type hydraulic generator |
| CN116950826B (en) * | 2023-09-19 | 2024-01-19 | 杭州杭发发电设备有限公司 | Combined bearing device for full umbrella type hydraulic generator |
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Application publication date: 20130220 |