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External-circulating cooling mechanism for hydraulic turbine generator thrust bearing

An external circulation cooling and hydro-generator technology, applied in bearing cooling, hydroelectric power generation, bearing components, etc., can solve the problem of the cooling effect of thrust bearing and the difficulty of taking into account the space for installation and maintenance, shorten the installation and maintenance period, and achieve good economic benefits. , the effect of improving efficiency

Inactive Publication Date: 2017-12-29
DONGFANG ELECTRIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the defects and deficiencies in the above-mentioned prior art, the present invention provides an outer circulation cooling structure for the thrust bearing of the hydro-generator. Difficult to take into account the problem, the invention can not only ensure that the thrust bearing can be effectively cooled, the unit runs safely and stably, but also can increase the installation and maintenance space, and improve the convenience of installation and maintenance

Method used

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  • External-circulating cooling mechanism for hydraulic turbine generator thrust bearing
  • External-circulating cooling mechanism for hydraulic turbine generator thrust bearing
  • External-circulating cooling mechanism for hydraulic turbine generator thrust bearing

Examples

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Embodiment 1

[0025] As a preferred embodiment of the present invention, with reference to the attached figure 1 , this example discloses:

[0026] An external circulation cooling structure for a thrust bearing of a hydroelectric generator, comprising an external circulation cooling pipeline 1 and a cooler 7 , and an oil tank 4 is arranged on the external circulation cooling pipeline 1 . By setting the oil tank 4 on the thrust bearing outer circulation cooling pipeline 1, the lubricating oil in the thrust bearing outer circulation can be increased, so that the volume of the thrust oil tank can be reduced under the premise of ensuring the thrust bearing cooling effect, thereby increasing the installation of thrust bearings and other components The maintenance space shortens the installation and maintenance cycle; the reduction of the lubricating oil in the thrust oil tank can reduce the stirring loss of the thrust bearing, improve the efficiency of the generator, and achieve better economic ...

Embodiment 2

[0028] As another preferred embodiment of the present invention, this embodiment discloses:

[0029] An outer circulation cooling structure for a thrust bearing of a hydroelectric generator, characterized in that it includes an outer circulation cooling pipeline 1 and a cooler 7, and an oil tank 4 is arranged on the outer circulation cooling pipeline 1; the oil tank 4 is arranged outside Between the main oil inlet pipe 2 of the circulating cooling pipeline 1 and the oil inlet branch pipe 3; one end of the oil inlet branch pipe 3 is connected to the oil tank 4, and the other end is connected to the cooler 7. By setting the oil tank 4 between the oil inlet main pipe 2 and the oil inlet branch pipe 3 of the thrust bearing outer circulation cooling pipeline 1, the lubricating oil of the thrust bearing outer circulation can be increased, so that the thrust can be reduced under the premise of ensuring the cooling effect of the thrust bearing The volume of the oil tank increases the ...

Embodiment 3

[0031] As another preferred embodiment of the present invention, this embodiment discloses:

[0032] An outer circulation cooling structure for a thrust bearing of a hydroelectric generator, characterized in that it includes an outer circulation cooling pipeline 1 and a cooler 7, and an oil tank 4 is arranged on the outer circulation cooling pipeline 1; the oil tank 4 is arranged outside Between the main oil outlet pipe 8 and the oil outlet branch pipe 9 of the circulating cooling pipeline 1; one end of the oil outlet branch pipe 9 is connected to the oil tank 4, and the other end is connected to the cooler 7. By setting the oil tank 4 between the oil outlet main pipe 8 and the oil outlet branch pipe 9 of the thrust bearing outer circulation cooling pipeline 1, the lubricating oil of the thrust bearing outer circulation can be increased, so that the thrust can be reduced under the premise of ensuring the cooling effect of the thrust bearing The volume of the oil tank increases...

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Abstract

The invention discloses an external-circulating cooling mechanism for a hydraulic turbine generator thrust bearing and relates to the technical field of hydraulic turbine generator machines. The external-circulating cooling mechanism comprises an external-circulating cooling pipeline and a cooler, and an oil tank is arranged on the external-circulating cooling pipeline. The external-circulating cooling mechanism can guarantee effective cooling of the thrust bearing, a unit safely and stably operates, a mounting and overhaul space can be increased, and mounting and overhaul convenience is improved.

Description

technical field [0001] The invention relates to the technical field of hydraulic generator machinery, and more specifically relates to an external circulation cooling structure of a thrust bearing of a hydraulic generator. Background technique [0002] Thrust bearing oil cooling is achieved through oil-water coolers. Using external circulation or internal circulation cooling, from the analysis of cooling effect, there is no obvious difference between the two. The cooler can be installed inside or outside the sump, depending on the space available. In principle, as long as the space permits, the cooler should be installed outside the oil tank for maintenance, and even when the unit is running, to prevent water leakage from entering the oil tank. The coolers should be spared, and the other one can continue to operate when one is maintained. Internal circulation is adopted, and the oil cooler is installed in the oil tank. The circulation of the cooling oil circuit is relativ...

Claims

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Application Information

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IPC IPC(8): F03B11/00F16C37/00H02K9/19
CPCF03B11/00F16C37/00H02K9/19Y02E10/20
Inventor 黄智欣何伟邓斌刘小松
Owner DONGFANG ELECTRIC MACHINERY
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