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Lubricating oil circulating system for thrust runner pump bearing

A circulation system and lubricating oil technology, which is applied in the direction of lubricating oil control valve, engine lubrication, bearing cooling, etc., can solve problems such as broken pumps, and achieve the effects of avoiding pressure relief, high safety, and reducing rotating oil churning

Pending Publication Date: 2022-05-13
DONGFANG ELECTRIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the actual use of the above technical solutions, the following problems will occur: the thrust bearing pad still adopts the immersion operation mode, and the mirror plate pump must be immersed in the oil during operation.
[0007] In the actual use of the above-mentioned technical solution, the following problems may occur: the possibility of pump breakage may easily exist

Method used

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  • Lubricating oil circulating system for thrust runner pump bearing
  • Lubricating oil circulating system for thrust runner pump bearing

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Effect test

Embodiment 1

[0034] As the basic embodiment of the present invention, the present invention includes a lubricating oil circulation system for mirror plate pump bearings, including a thrust head 1, a mirror plate 2, a thrust pad 5, a bearing housing 6, a lubricating oil cooler 11, a Oil system 7, oil tank 8 and oil suction pipeline 4. The mirror plate 2 is provided with pump holes for building up pressure. The inner side of the mirror plate 2 is equipped with a circle of first oil collecting groove 3, and the outer side of the mirror plate 2 is equipped with a circle of second oil collecting groove 9; both the first oil collecting groove 3 and the second oil collecting groove 9 are fixed on the bearing housing 6 . One end of the oil suction pipe is connected to the first oil collecting tank 3, and the other end hangs down and extends below the oil surface of the oil tank 8. The second oil collecting tank 9 is connected with a lubricating oil cooler 11 through an oil outlet pipe 10 of the ...

Embodiment 2

[0038] As a preferred embodiment of the present invention, the present invention includes a lubricating oil circulation system for mirror plate pump bearings, including a thrust head 1, a mirror plate 2, a thrust shoe 5, a bearing seat 6, a lubricating oil cooler 11, a shoe Intermediate oil distribution system 7, oil tank 8 and oil suction pipeline 4. The mirror plate 2 is provided with pump holes for building up pressure. A circle of first oil collecting grooves 3 is installed on the inside of the mirror plate 2 , and a circle of second oil collecting grooves 9 is installed on the outside of the mirror plate 2 . Both the first oil collecting groove 3 and the second oil collecting groove 9 are fixed on the bearing housing 6 and are made of polytetrafluoroethylene. One end of the oil suction pipe is connected to the first oil collecting tank 3, and the other end hangs down and extends below the oil surface of the oil tank 8. The second oil collecting tank 9 is connected with ...

Embodiment 3

[0041] As another preferred embodiment of the present invention, the present invention includes a lubricating oil circulation system for mirror plate pump bearings, including a thrust head 1, a mirror plate 2, a thrust pad 5, a bearing seat 6, a lubricating oil cooler 11, Oil distribution system 7 between tiles, oil tank 8 and oil suction pipeline 4. The mirror plate 2 is provided with pump holes for building up pressure. A circle of first oil collecting grooves 3 is installed on the inside of the mirror plate 2 , and a circle of second oil collecting grooves 9 is installed on the outside of the mirror plate 2 . Both the first oil collecting groove 3 and the second oil collecting groove 9 are fixed on the bearing housing 6 . One end of the oil suction pipe is connected to the first oil collecting tank 3, and the other end hangs down and extends below the oil surface of the oil tank 8. The second oil collecting tank 9 is connected with a lubricating oil cooler 11 through an o...

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Abstract

The invention relates to the technical field of power generation equipment bearing lubrication, in particular to a lubricating oil circulating system for a runner pump bearing, which comprises a thrust block, a runner, a thrust pad, a bearing seat, an inter-pad oil separation system, an oil groove, a lubricating oil cooler and an oil suction pipeline, a pump hole for establishing pressure is formed in the runner plate; a circle of first oil collecting groove is formed in the inner side of the runner plate, and a circle of second oil collecting groove is formed in the outer side of the runner plate; the first oil collecting groove and the second oil collecting groove are fixed on the bearing seat; one end of the oil suction pipeline is connected with the first oil collection tank, and the other end droops below the oil surface of the oil tank; the second oil collecting groove is connected with the lubricating oil cooler through an oil groove oil outlet pipe. Through the circulating system, the problem of pump breakage can be effectively solved, and the safety of the bearing is higher.

Description

technical field [0001] The invention relates to the technical field of bearing lubrication for power generation equipment, in particular to a lubricating oil circulation system for mirror plate pump bearings. Background technique [0002] The bearing lubrication of conventional hydro-generators generally adopts the immersion operation mode, that is, when the unit is running, the bearing pads are always soaked in lubricating oil, and it only needs to ensure that the bearing circulating oil is sufficient to meet the safe operation of the bearing pads. However, the immersion bearing agitates the lubricating oil in the oil tank more seriously during operation, which may easily cause oil mist in the oil tank. In addition, the loss of soaked bearings is relatively large. [0003] In the prior art, a Chinese utility model patent document with a publication number of CN205779433U and an authorized announcement date of December 07, 2016 was proposed. The technical solution disclosed...

Claims

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Application Information

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IPC IPC(8): F16N39/02F16N31/02F16N7/38F16N23/00F16N21/00F16C37/00F03B11/06
CPCF16N39/02F16N31/02F16N7/38F16N23/00F16N21/00F16C37/00F03B11/06F16N2210/14Y02E10/20
Inventor 路振刚郑小康铎林刘健俊佟德利朱忠英鄢帮国徐扬
Owner DONGFANG ELECTRIC MACHINERY