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A combined sealing device for vertical hydraulic generator bearing oil groove

A hydro-generator, bearing oil tank technology, applied in the direction of engine sealing, hydroelectric power generation, engine components, etc., can solve the problems of poor sealing effect, easy leakage of oil mist, etc., to prevent the leakage of oil mist and improve the sealing. effect, the effect of improving the sealing

Active Publication Date: 2022-04-05
DONGFANG ELECTRIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sealing effect is not good, and the oil mist is still easy to leak out

Method used

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  • A combined sealing device for vertical hydraulic generator bearing oil groove

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] see figure 1 , a vertical water turbine generator bearing oil tank combined sealing device, including an oil tank 1, a rotating shaft 2 and a sealing end cover 3, and also includes a sealing seat ring 1 4 and a sealing seat ring 2 5, and one of the sealing end cover 3 One side is connected with the lower end of the sealing seat ring one 4, the other side of the sealing end cover 3 is fixedly connected with the oil tank 1, the upper end of the sealing seat ring one 4 is connected with the lower end of the sealing seat ring two 5, and the sealing seat ring two 5 The upper end is connected with a first sealing brush 6, and the sealing seat 4 is connected with a second sealing brush 7 and multi-layer sealing teeth, and the sealing seat 4 is provided with a cavity 8 and a cavity 2 9. The sealing seat ring 2 5, the sealing seat ring 1 4 and the rotating shaft 2 form a cavity 3 10, and the rotating shaft 2 and the sealing seat ring 1 4 form a cavity 4 11, and the cavity 8 pass...

Embodiment 2

[0032] see figure 1 , a vertical water turbine generator bearing oil tank combined sealing device, including an oil tank 1, a rotating shaft 2 and a sealing end cover 3, and also includes a sealing seat ring 1 4 and a sealing seat ring 2 5, and one of the sealing end cover 3 One side is connected with the lower end of the sealing seat ring one 4, the other side of the sealing end cover 3 is fixedly connected with the oil tank 1, the upper end of the sealing seat ring one 4 is connected with the lower end of the sealing seat ring two 5, and the sealing seat ring two 5 The upper end is connected with a first sealing brush 6, and the sealing seat 4 is connected with a second sealing brush 7 and multi-layer sealing teeth, and the sealing seat 4 is provided with a cavity 8 and a cavity 2 9. The sealing seat ring 2 5, the sealing seat ring 1 4 and the rotating shaft 2 form a cavity 3 10, and the rotating shaft 2 and the sealing seat ring 1 4 form a cavity 4 11, and the cavity 8 pass...

Embodiment 3

[0036] see figure 1 , a vertical water turbine generator bearing oil tank combined sealing device, including an oil tank 1, a rotating shaft 2 and a sealing end cover 3, and also includes a sealing seat ring 1 4 and a sealing seat ring 2 5, and one of the sealing end cover 3 One side is connected with the lower end of the sealing seat ring one 4, the other side of the sealing end cover 3 is fixedly connected with the oil tank 1, the upper end of the sealing seat ring one 4 is connected with the lower end of the sealing seat ring two 5, and the sealing seat ring two 5 The upper end is connected with a first sealing brush 6, and the sealing seat 4 is connected with a second sealing brush 7 and multi-layer sealing teeth, and the sealing seat 4 is provided with a cavity 8 and a cavity 2 9. The sealing seat ring 2 5, the sealing seat ring 1 4 and the rotating shaft 2 form a cavity 3 10, and the rotating shaft 2 and the sealing seat ring 1 4 form a cavity 4 11, and the cavity 8 pass...

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Abstract

The invention discloses a vertical water turbine generator bearing oil groove combination sealing device, which belongs to the field of water turbine generator sealing, including an oil groove, a rotating shaft and a sealing end cover, and is characterized in that it also includes a sealing seat ring 1 and a sealing seat ring 2. There is a first sealing brush on the upper end of the sealing seat ring 2. There is a second sealing brush and multi-layer sealing teeth on the sealing seat ring 1. Cavity 1 and cavity 2 are arranged on the sealing seat ring 1. The sealing seat ring 2. The sealing seat ring 1 and the rotating shaft form a cavity 3, and the rotating shaft and the sealing seat ring 1 form a cavity 4, the first sealing brush is in contact with the rotating shaft, the cavity 1 is used to enter high-pressure air, and the cavity Body two is used to pass air at normal pressure. The oil mist of the present invention must go through multiple well-sealed cavities from the oil tank to the outside of the oil tank, cooperate with the jet gas in the opposite direction of the oil mist overflow, and combine with the multi-layer sealing tooth structure, so that the oil mist can be effectively sealed and the oil mist can be prevented from leaking out. , which greatly improves the oil mist sealing effect.

Description

technical field [0001] The invention relates to the technical field of hydraulic generator sealing, in particular to a vertical hydraulic generator bearing oil groove combined sealing device. Background technique [0002] Generator bearings generally use sliding bearings, and the bearing pads are soaked in lubricating oil or the lubricating oil is sprayed onto the sliding surface through an oil spraying device to provide lubrication for the bearings. When the unit rotates, oil mist will be formed. Generally speaking, the higher the speed, the more oil mist will be produced. During the operation of the unit, the oil mist accumulates continuously, the oil mist concentration and gas pressure in the oil tank increase, and the oil mist will overflow from the sealing structure. The spilled oil mist will pollute the generator and the environment. In very serious cases, it may cause a series of problems such as the decline of insulation performance and the reduction of the efficien...

Claims

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Application Information

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IPC IPC(8): F16J15/16F16J15/40F03B11/00F03B11/06
CPCF16J15/16F16J15/40F03B11/06F03B11/006Y02E10/20
Inventor 邹应冬熊辉王勇刘晓曾玉好施明星
Owner DONGFANG ELECTRIC MACHINERY
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