CN217270583U

CN217270583U - Bulb type unit water guide bearing oil discharge breathing device

Info

Publication number: CN217270583U
Application number: CN202220747150.9U
Authority: CN
Inventors: 于海洋; 史晓林; 宿杨; 石磊; 李继成; 陈琦; 张海波; 王海志; 李科明
Original assignee: Yunfeng Power Plant Of Lvyuan Hydropower Co Of Northeast Branch Of State Grid
Current assignee: Yunfeng Power Plant Of Lvyuan Hydropower Co Of Northeast Branch Of State Grid
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-08-23
Anticipated expiration: 2032-04-02

Abstract

The utility model relates to a generating set technical field, bulb formula unit water guide bearing oil extraction breathing apparatus promptly. The pipeline breathing device is characterized in that a water guide bearing oil discharge pipe connected with a water guide bearing is additionally arranged on a vertical pipe of the water guide bearing oil discharge pipe, a pipeline is connected to the vertical pipe of the water guide oil discharge pipe by opening a hole, the pipeline is connected with a U-shaped pipeline with an upper opening through a flange, a filter screen is arranged at the outlet of the U-shaped pipeline, and the outlet of the U-shaped pipeline is higher than the position of an oil retaining ring of the water guide bearing. Simple structure, reasonable in design avoids getting rid of oil, safe and reliable practices thrift the cost, and the cost is low, and the maintenance work volume is little in the future.

Description

Bulb type unit water guide bearing oil discharge breathing device

Technical Field

The utility model relates to a generating set technical field, bulb formula unit water guide bearing oil extraction breathing apparatus promptly.

Background

In the prior art, a bulb tubular hydropower station adopts a plurality of tubular units with single unit capacity of 1 ten thousand kW, and a power station unit adopts a double-bearing support mode. When the unit is debugged and operated, the phenomenon of large oil throwing at the position of the water guide bearing is found, and a large amount of gas in an oil discharge pipe of the water guide bearing cannot be discharged (see figure 3), so that the oil accumulated in the water guide bearing is gradually increased until the oil guide bearing oil baffle ring overflows.

When the unit operates, the oil discharged by the water guide bearing is discharged to a low-level oil tank, and the stored air in the pipeline is always extruded upwards. The gas is accumulated in the upper part of the pipeline and cannot be directly discharged to the atmosphere smoothly. At this time, the oil discharge amount during operation cannot fill the pipe, and the existing gas cannot be smoothly discharged. Therefore, when the unit operates the water guide normal oil supply, the gas in the oil discharge pipe of the water guide bearing occupies most space of the pipeline, so that the oil discharge is not smooth, and the turbine oil in the water guide bearing gradually rises until the oil-gas mixture is thrown out from the oil blocking ring. At this time, the oil throwing phenomenon can occur when the unit rotates.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the aforesaid not enough and provide a simple structure, avoid getting rid of portable pressurized-water test flow measuring device of oil.

The technical solution of the utility model is that: bulb formula unit water guide bearing oil extraction respiratory device, including the water guide bearing oil extraction pipe of being connected with the water guide bearing, its characterized in that installs additional on water guide bearing oil extraction pipe standpipe and improves this pipeline respiratory device, respiratory device trompil on water guide oil extraction pipeline standpipe connect one section pipeline, the pipeline passes through the flange and is connected with upper shed U type pipeline, U type pipeline exit has the filter screen, U type pipeline exit will be higher than water guide bearing oil baffle ring position.

The utility model has the advantages that: 1. the range of change is little, does not produce the influence to other equipment, except that the oil extraction pipeline, need not to improve other equipment, reduces the construction volume. 2. Simple structure, reasonable in design, safe and reliable practices thrift the cost, and the cost is low, and the maintenance work volume is little in the future. 3. The cost is low, and the used materials are purchased. 4. The time is saved, and the test run and production power generation time of the unit is guaranteed. 5. The problem of oil throwing of the water guide bearing caused by unsmooth oil drainage of the water guide bearing is that gas in the pipe cannot be smoothly discharged through deep analysis, after the self-made breathing device is installed on the vertical pipe section of the water guide bearing, long-term observation proves that the gas in the pipeline is discharged through the breathing device and cannot be accumulated in the oil drainage pipe, so that the oil in the oil drainage pipe of the water guide bearing is smoothly discharged, the problem of oil throwing caused by unsmooth oil drainage of the water guide bearing is thoroughly solved, and the condition that 4 machine sets of the power station are debugged to generate electricity smoothly and put into production in advance as required is ensured.

Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic left view of fig. 1.

Fig. 3 is a schematic view of an improved front bearing drain pipe arrangement.

Detailed Description

Referring to fig. 1, 2 and 3, the names of the components are as follows: water guide bearing 1, water guide bearing oil discharge pipe 2, water guide bearing oil discharge pipe standpipe 3, pipeline 4, flange 5, U type pipeline 6, main shaft 7.

Referring to fig. 1 and 2, the breathing apparatus for water guide bearing oil discharge of bulb-type unit comprises a water guide bearing oil discharge pipe 2 connected with a water guide bearing 1, and a vertical pipe 3 of the water guide bearing oil discharge pipe is additionally provided with the breathing apparatus for improving the pipeline. The breathing device is characterized in that a section of pipeline 4 is connected to a vertical pipe 3 of a water guide and oil drainage pipeline through a hole, and the pipeline 4 is connected with a U-shaped pipeline 6 with an upper opening through a flange 5 so as to enlarge the breathing area and avoid the position of a main shaft 7. The outlet of the U-shaped pipeline 6 is provided with a filter screen, the outlet of the U-shaped pipeline 6 is higher than the position of a water guide bearing oil retainer, so that oil spilling of the breathing device and splashing of turbine oil during exhaust are prevented, and the air outlet of the breathing device is higher than the position of the water guide bearing oil retainer.

The breathing device is manufactured by using a phi 100mm pipeline, a welded elbow, a welded tee and a phi 50mm flange 5. A small section of pipeline 4 (steel pipe) with the diameter of 50mm is connected with an opening on a vertical pipe 3 of a water and oil guide and drainage pipeline and is welded with one half of flange, and the pipeline with the diameter of 50mm is cut and welded into the pipeline with the diameter of 50mm and is welded with the other half of flange. In order to enlarge the drainage breathing area, avoid the position of the main shaft and ensure that the outlet is higher than a water guide bearing oil retainer, a horizontal pipe section is welded by an elbow and is welded and formed with a vertical pipe 3 section of a water guide and drainage pipeline.

A size matching pipeline 4 is welded upwards at the bending part of the vertical pipe 3 section of the water and oil guiding and discharging pipeline, the breathing area is enlarged through reducing, and a filter screen is additionally arranged at the outlet to prevent foreign matters from entering. When the unit is installed, the 'gurgling' sound that oil and gas are turned over in the exhaust port of the breathing device is observed, and air is exhausted from the breathing device. The water guide bearing has no phenomenon of oil throwing, and oil can be smoothly discharged. Thereby solving the fundamental problem of oil throwing of the water guide bearing.

The working principle is as follows: the principle of this device is very simple, and at water guide bearing oil extraction pipe 2 top, also be the pipeline in the gas pile up unable exhaust position installation respiratory device, make the pipeline in the gas smoothly arrange to the atmosphere to guarantee that the oil in the pipeline can't splash to the outside, impurity in the air can't get into the inside oil that influences of pipeline simultaneously, guarantees that the interior oil extraction of oil extraction pipe is unobstructed.

The above description is only for the purpose of illustrating the embodiments of the present invention, and the various illustrations should not be construed as limiting the essential contents of the present invention.

Claims

1. Bulb formula unit water guide bearing oil extraction respiratory device, include water guide bearing oil extraction pipe (2) of being connected with water guide bearing (1), its characterized in that installs additional on water guide bearing oil extraction pipe standpipe (3) and improves this pipeline respiratory device, respiratory device be trompil connect one section pipeline (4) on water guide bearing oil extraction pipe standpipe (3), pipeline (4) are connected with upper shed U type pipeline (6) through flange (5), U type pipeline (6) exit has the filter screen, U type pipeline (6) exit will be higher than water guide bearing oil baffle ring position.